{ "protocol": { "version": "astra-four-model-unanimity-gemini-4-argon-high-20261023-v1", "source": "https://eternalsearch.net/omega/gemini-generated-confirmation-20261023/report.json", "sourceSha256": "30eebdb1dea82145a9853782ae6d60ce6a509fcf7ba53c41129394ef438cd9f5", "generator": "gemini-4-argon-high", "design": "Preregistered rule recorded in the frozen cohort protocol before any forecast call for this cohort; the rule itself was chosen earlier after inspecting the Grok-generated votes. No laboratory validation", "reference": "Grok/N retrospective path on 2026-10-23: 240 input, 53 after Astra, 19 after unanimity, 14 of 19 article matches, 14 of 40 sensitivity", "endpoint": "At least two of three original judges assign article-correspondence score >=3", "handling": "unambiguous extracted saved responses", "first": "gpt-6-astra", "members": [ "claude-sonnet-5-5", "gpt-6-astra", "gemini-4-argon-high", "grok-4.5" ], "minVotes": 4, "cohort": "Fixed common complete-case cohort of the four predictors from the audited report; technical omissions remain exclusions", "coin": "Original saved tosses on identical hypothesis identities, without repeat tosses", "uncertainty": "Pointwise descriptive 95% paired original-task cluster percentile intervals; 2000 draws, seed20261022; no multiplicity correction", "workload": "One model/hypothesis forecast per unit; reuse the saved first-stage vote in the panel. Not actual request count, tokens, money or elapsed time" }, "first": "gpt-6-astra", "members": [ "claude-sonnet-5-5", "gpt-6-astra", "gemini-4-argon-high", "grok-4.5" ], "reused": true, "firstStage": { "hypotheses": 250, "questions": 50, "selected": 51, "matches": 14, "known": 33, "missed": 19, "counts": { "yes_true": 14, "yes_false": 37, "no_true": 19, "no_false": 180 }, "rates": { "ppv": 0.27450980392156865, "npv": 0.9045226130653267, "sens": 0.42424242424242425, "spec": 0.8294930875576036, "youden": 0.25373551180002796, "accuracy": 0.776, "balancedAccuracy": 0.626867755900014 } }, "panelOnly": { "hypotheses": 250, "questions": 50, "selected": 19, "matches": 9, "known": 33, "missed": 24, "counts": { "yes_true": 9, "yes_false": 10, "no_true": 24, "no_false": 207 }, "rates": { "ppv": 0.47368421052631576, "npv": 0.8961038961038961, "sens": 0.2727272727272727, "spec": 0.9539170506912442, "youden": 0.22664432341851692, "accuracy": 0.864, "balancedAccuracy": 0.6133221617092585 } }, 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"grok-4.5": true } }, { "task": "R42808804", "id": "H1", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42808804", "id": "H2", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42808804", "id": "H3", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42808804", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42808804", "id": "H5", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42585340", "id": "H1", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42585340", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42585340", "id": "H3", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42585340", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42585340", "id": "H5", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": true, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42669067", "id": "H1", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42669067", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42669067", "id": "H3", "y": 1, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42669067", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42669067", "id": "H5", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42811065", "id": "H1", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42811065", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42811065", "id": "H3", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42811065", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42811065", "id": "H5", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42841610", "id": "H1", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": false } }, { "task": "R42841610", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42841610", "id": "H3", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42841610", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42841610", "id": "H5", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806003", "id": "H1", "y": 1, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": true } }, { "task": "R42806003", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": false } }, { "task": "R42806003", "id": "H3", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806003", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806003", "id": "H5", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806572", "id": "H1", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806572", "id": "H2", "y": 1, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42806572", "id": "H3", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806572", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42806572", "id": "H5", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42748238", "id": "H1", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42748238", "id": "H2", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": true, "gemini-4-argon-high": true, "grok-4.5": true } }, { "task": "R42748238", "id": "H3", "y": 0, "yes": false, "coin": false, "forecasts": { "claude-sonnet-5-5": true, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42748238", "id": "H4", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } }, { "task": "R42748238", "id": "H5", "y": 0, "yes": false, "coin": true, "forecasts": { "claude-sonnet-5-5": false, "gpt-6-astra": false, "gemini-4-argon-high": false, "grok-4.5": false } } ], "selected": [ { "task": "R42605193", "id": "H3", "index": 0, "question": "Which circulating regulator causally promotes cellular senescence and organismal ageing, and through what intracellular signaling mechanism does it act?", "text": "Age-related elevation of circulating interleukin-11 (IL-11) causally promotes multi-organ cellular senescence, metabolic dysfunction, and organismal ageing. Secreted progressively by aged hepatocytes, adipocytes, and stromal cells, circulating IL-11 coordinates systemic tissue decline by simultaneously driving pro-senescent anabolic signaling and suppressing cellular energy-sensing pathways. Mechanism: Circulating IL-11 binds the cell-surface IL-11Rα/gp130 receptor complex in target parenchymal and stromal cells to activate MEK/ERK1/2, which phosphorylates and inactivates LKB1 (at Ser428) to suppress AMPK while concurrently activating mTORC1–S6K1 and canonical JAK2/STAT3 signaling. This dual ERK–mTORC1 activation and AMPK inhibition halts autophagic and mitophagic flux, increases mitochondrial reactive oxygen species (ROS), and transcriptionally upregulates p16INK4a, p21CIP1, and NF-κB-dependent senescence-associated secretory phenotype (SASP) factors. Prediction: Systemic administration of neutralizing anti-IL-11 or anti-IL-11Rα antibodies, or adult-onset Il11ra1 deletion, in middle-aged mice will restore tissue AMPK activity, suppress mTORC1 and STAT3 hyperactivation, reduce multi-organ p16INK4a/p21CIP1 senescence burden, reverse age-related insulin resistance and hepatic steatosis, and extend median and maximum lifespan; conversely, chronic IL-11 infusion in young mice will induce widespread senescence that is blocked by pharmacological ERK1/2 or mTORC1 inhibition.", "articleFinding": "ANGPTL8 directly interacts with AKT2 and activates the AKT–mTOR–S6K pathway, thereby driving cell-autonomous adipocyte senescence. Deleting Angptl8 in mice reduces adipose senescence, delays age-related functional decline, and extends lifespan, while genetic or pharmacological pathway inhibition abolishes ANGPTL8-induced senescence.", "doi": "10.1111/acel.70671", "pmid": "42605193", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42608398", "id": "H3", "index": 0, "question": "Can a microbiota-derived factor directly cause the cellular dysfunction and progressive tissue remodeling characteristic of idiopathic pulmonary fibrosis, and if so, through what mechanism?", "text": "A conserved pro-apoptotic peptide proteolytically cleaved from bacterial cell-wall transglycosylases (such as corisin derived from lung-resident Staphylococcus and related commensal bacteria) directly initiates progressive pulmonary fibrosis without requiring live infection. This microbiota-derived peptide acts on alveolar epithelial cells to simultaneously trigger apoptosis, cellular senescence, and epithelial-to-mesenchymal phenotypic transitions. Mechanism: Extracellular bacterial serine proteases cleave conserved regions of bacterial transglycosylases to release a bioactive peptide into the alveolar space. Upon internalization or receptor engagement on alveolar type II (AT2) epithelial cells, the peptide disrupts mitochondrial membrane potential and increases mitochondrial reactive oxygen species, triggering intrinsic caspase-3-mediated apoptosis in a subset of cells while activating ATM/p53/p21 DNA damage signaling, senescence-associated secretory phenotype (SASP) release, and TGF-beta1/SMAD- and Snail-mediated epithelial-to-mesenchymal transition (EMT) in surviving cells to drive myofibroblast accumulation and extracellular matrix deposition. Prediction: Intratracheal instillation of the purified synthetic bacterial peptide alone into uninjured mice will be sufficient to induce AT2 apoptosis, p21/SA-beta-gal-positive senescence, EMT marker expression, and progressive collagen deposition, whereas protease-resistant removal of peptidic factors or treatment with a peptide-neutralizing monoclonal antibody will completely abolish these cell-fate abnormalities and fibrotic remodeling.", "articleFinding": "The microbiota-derived peptide corisin directly disrupts epithelial proteostasis by targeting and enhancing the ubiquitin-proteasome system, thereby inducing apoptosis, cellular senescence, epithelial-mesenchymal transition, and fibrotic remodeling. Depleting native corisin from patient bronchoalveolar lavage fluid removes its proapoptotic activity, while constitutive corisin expression in mice causes spontaneous progressive pulmonary fibrosis and worsens bleomycin-induced injury and mortality.", "doi": "10.1038/s41467-026-76162-7", "pmid": "42608398", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 3 }, { "judge": "claude-opus-5-5", "score": 4 }, { "judge": "grok-4.7", "score": 3 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42627902", "id": "H5", "index": 0, "question": "Which regulatory mechanism drives the age-associated shift away from erythroid differentiation and toward platelet-producing lineage programs?", "text": "Age-associated upregulation and chromatin pioneering of the transcription factor FLI1 in hematopoietic stem and megakaryocyte-erythroid progenitor cells (MEPs) directly activates platelet-lineage gene programs while competitively repressing KLF1-driven erythroid differentiation. This shift in the FLI1-to-KLF1 transcriptional balance causally redirects bipotent progenitors and stem cells toward megakaryocytopoiesis during ageing. Mechanism: During ageing, increased accessibility at ETS-family binding motifs allows FLI1 (in cooperation with RUNX1 and GATA2) to occupy and activate megakaryocytic enhancers (such as MPL, ITGA2B, and GP1BA) while physically sequestering GATA1 away from KLF1 and recruiting corepressors to erythroid-specific loci (such as EPOR and HBB), thereby blocking erythroid commitment and promoting direct megakaryocyte generation. Prediction: Single-cell ATAC/RNA-seq of aged HSCs and MEPs will show selective enrichment of open FLI1/ETS motifs prior to lineage commitment, and partial genetic knockdown or degron-mediated reduction of FLI1 in aged progenitors will restore KLF1 target gene expression and normalize the erythroid-to-platelet output ratio even in the presence of an aged inflammatory bone marrow niche.", "articleFinding": "Pbx1 is a regulatory hub that drives age-related transcriptional and differentiation changes in hematopoietic stem cells. It suppresses erythroid differentiation by repressing Gata1 expression, thereby contributing to the lineage imbalance characteristic of HSC ageing.", "doi": "10.1126/sciadv.aeb1346", "pmid": "42627902", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42647119", "id": "H4", "index": 0, "question": "How does aging affect injury-induced neuronal reprogramming in the retina, and what mechanisms account for any age-related loss of regenerative capacity?", "text": "Aging impairs injury-induced retinal neuronal reprogramming by priming resident microglia toward a persistent pro-inflammatory state that locks Müller glia into reactive gliosis rather than neurogenesis. Chronic inflammatory signaling after injury in aged retinas actively antagonizes proneural transcription factor activity in Müller glia. Mechanism: In aged retinas, senescent and dystrophic microglia respond to injury with sustained secretion of TNF-alpha, IL-6, and IL-1beta, driving prolonged hyperactivation of JAK/STAT3 and NF-kappaB signaling within Müller glia. Phosphorylated STAT3 and RelA/p65 directly compete with proneural pioneer factors such as Ascl1 for transcriptional co-activators and promote expression of gliogenic and inhibitory factors (such as Id1/3, Socs3, and Gfap), blocking the transition from reactive glia to neurogenic progenitors. Prediction: Microglial depletion (e.g., via CSF1R inhibition) or Müller glia-specific inhibition of STAT3/NF-kappaB signaling in aged injured retinas will restore Ascl1-driven neurogenic reprogramming efficiency to youthful levels, even without directly altering the intrinsic epigenetic landscape of Müller glia prior to injury.", "articleFinding": "Aging suppresses Müller glia-to-neuron reprogramming by preventing activation of progenitor programs while promoting reactive and inflammatory glial states and an exaggerated retinal neuroimmune response. Dexamethasone partially restores neurogenesis, confirming that age-associated inflammation is a causal, therapeutically tractable component of the regenerative defect, alongside glial-intrinsic barriers.", "doi": "10.1073/pnas.2612369123", "pmid": "42647119", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 4 }, { "judge": "claude-opus-5-5", "score": 4 }, { "judge": "grok-4.7", "score": 4 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42647635", "id": "H4", "index": 0, "question": "Does experimentally increasing somatic mitochondrial DNA mutation burden cause premature ageing and shortened lifespan in a large mammal?", "text": "Experimentally increasing the somatic mtDNA mutation rate via proofreading-deficient DNA polymerase gamma (POLG) in a large mammal directly drives systemic premature ageing and shortens lifespan by exhausting adult stem and progenitor cell pools. This progeroid phenotype arises even without elevated mitochondrial reactive oxygen species (ROS). Mechanism: Accumulation of random point mutations and linear deletions in mtDNA destabilizes respiratory chain complexes I and IV, triggering bioenergetic failure and intrinsic caspase-dependent apoptosis specifically within rapidly dividing somatic stem cell compartments (such as hematopoietic, intestinal, and neural progenitors), thereby impairing tissue regeneration. Prediction: Large mammals engineered with exonuclease-deficient POLG will exhibit early-onset alopecia, kyphosis, anemia, sarcopenia, and reduced lifespan accompanied by severe depletion of tissue-resident stem cells and respiratory chain complex instability, but without a corresponding increase in oxidative macromolecular damage (e.g., 8-oxodG or lipid peroxidation) or rescue by mitochondrial antioxidants.", "articleFinding": "Prime-edited pigs expressing proofreading-deficient POLG accumulated elevated somatic mitochondrial DNA mutations and developed systemic premature-ageing phenotypes. These included weight loss, rough hair, anaemia, tissue abnormalities, increased apoptosis, elevated senescence-associated markers, and shortened lifespan.", "doi": "10.1126/sciadv.adu0632", "pmid": "42647635", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 4 }, { "judge": "claude-opus-5-5", "score": 5 }, { "judge": "grok-4.7", "score": 4 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42663085", "id": "H1", "index": 0, "question": "Can an intrinsic molecular regulator be enhanced to reactivate quiescent hair follicles and restore hair regeneration, and through what mechanism?", "text": "Genetic or pharmacological induction of intrinsic microRNA-205 (miR-205) expression in aged hair follicle stem cells (HFSCs) reactivates quiescent telogen follicles and restores anagen hair regeneration. This reactivation occurs by reversing age-associated cellular stiffening in the bulge and hair germ compartments. Mechanism: miR-205 directly binds and post-transcriptionally represses transcripts encoding RhoA-ROCK pathway activators and actomyosin regulators (including Arhgef11 and Plekhg5), reducing myosin light chain II phosphorylation (p-MLC2) and cortical F-actin polymerization, which lowers intracellular mechanical tension and permits cell-cycle re-entry. Prediction: Atomic force microscopy will show reduced cortical stiffness in aged HFSCs upon miR-205 induction prior to proliferation, and hair regeneration will be phenocopied by ROCK/myosin II inhibition (e.g., blebbistatin) or abolished by expressing miR-205-resistant Arhgef11 without altering upstream BMP or Wnt ligand levels.", "articleFinding": "Increasing TPP1, either through stem-cell Acd overexpression or topical stabilization with the peptide TELODIN, accelerates hair regeneration in mice. TPP1 coordinates telomere capping and telomerase recruitment, activating bulge hair follicle stem cells and promoting their proliferation, differentiation, and migration as follicles transition synchronously from telogen to anagen.", "doi": "10.1111/acel.70692", "pmid": "42663085", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 0 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42664348", "id": "H5", "index": 3, "question": "By what causal molecular mechanism does excess adiposity promote osteoarthritis progression, and can disrupting that mechanism reduce joint pathology?", "text": "Excess adipose tissue promotes osteoarthritis progression by secreting complement factor D (adipsin) into the circulation, which acts as the rate-limiting protease to activate the alternative complement cascade within synovial fluid and drive complement-mediated joint injury. Genetic deletion or pharmacological inhibition of circulating adipsin will protect against obesity-induced cartilage degeneration and synovitis. Mechanism: Adipocytes serve as the primary endocrine source of circulating adipsin (CFD), which diffuses into the joint space and cleaves factor B complexed with C3b to form the alternative pathway C3 convertase (C3bBb); subsequent cascade amplification generates C3a/C5a anaphylatoxins and deposits sublytic membrane attack complexes (C5b-9) on chondrocytes and synovial macrophages, activating C5aR1 and MAPK/ERK signaling to induce catabolic metalloproteinases and synovial inflammation. Prediction: Cfd-deficient mice or lipodystrophic mice fed an obesogenic diet will be protected from synovial C3b/C5b-9 deposition and osteoarthritis, and surgical transplantation of wild-type—but not Cfd-knockout—adipose tissue into fat-free mice will restore synovial alternative complement activation and susceptibility to joint degeneration.", "articleFinding": "Adipocyte-derived extracellular vesicles enriched in mitochondrial components transfer mitochondrial DNA to chondrocytes, where it activates cGAS-STING signaling and causes inflammation, metabolic dysfunction, senescence, and cartilage degeneration. Genetic or pharmacological inhibition of this pathway attenuates cartilage damage, pain behaviors, and gait abnormalities.", "doi": "10.1126/sciadv.aee6780", "pmid": "42664348", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 0 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42665751", "id": "H4", "index": 0, "question": "How does age-associated mitochondrial dysfunction initiate and propagate inflammatory signaling that causes ovarian functional decline?", "text": "Age-associated loss of mitochondrial membrane integrity in granulosa cells and oocytes causes cytosolic leakage of mitochondrial DNA (mtDNA), activating the cGAS-STING pathway to initiate sterile follicular inflammation. Intercellular transfer of 2'3'-cGAMP through connexin gap junctions and paracrine type I interferon/NF-kB cytokine secretion propagate this inflammatory state across the cumulus-oocyte complex and ovarian stroma, driving follicular atresia and endocrine decline. Mechanism: Age-related decline in TFAM stoichiometry and cristae remodeling promote VDAC1 oligomerization and BAX/BAK macropore formation on the outer mitochondrial membrane, releasing mtDNA fragments into the cytosol. Cytosolic mtDNA binds cGAS to synthesize 2'3'-cGAMP, which activates STING-TBK1-IRF3/NF-kB signaling within the stressed cell and diffuses through Connexin-43 and Connexin-37 gap junctions at transzonal projections into adjacent follicular cells, amplifying IL-6, TNF-alpha, CXCL10, and IFN-beta production throughout the follicle. Prediction: Oocyte- or granulosa-specific genetic deletion or pharmacological inhibition of STING (e.g., H-151) or gap-junctional cGAMP transfer in aged mice will abolish pan-follicular interferon-stimulated gene expression and preserve follicular reserve and estradiol production, even when mitochondrial bioenergetic dysfunction or NLRP3 inflammasome competence remains intact.", "articleFinding": "Ageing-associated mitochondrial DNA leakage from oocytes activates oocyte cGAS, generating cGAMP that triggers STING signaling and passes through gap junctions to activate STING in surrounding granulosa cells. Genetic deletion of oocyte Cgas or pharmacological STING inhibition ameliorates inflammation and ovarian dysfunction, establishing this signaling axis as a causal driver of ovarian ageing.", "doi": "10.1038/s43587-026-01195-y", "pmid": "42665751", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 4 }, { "judge": "claude-opus-5-5", "score": 5 }, { "judge": "grok-4.7", "score": 5 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42689491", "id": "H5", "index": 0, "question": "Can in vivo correction of the HGPS-causing mutation rescue molecular, cellular, and structural defects in bone, and how does treatment timing affect efficacy?", "text": "In vivo correction of the HGPS-causing LMNA mutation rescues molecular and cellular osteoblast defects regardless of age, but complete restoration of bone microarchitecture and biomechanical strength requires early intervention before osteoprogenitor exhaustion and growth plate senescence occur. Late treatment achieves only partial structural rescue because recovery is rate-limited by slow adult bone remodeling turnover and a depleted mesenchymal progenitor pool. Mechanism: Eliminating progerin production and restoring wild-type lamin A/C repairs nuclear lamina architecture and relieves p53/p21-mediated cell-cycle arrest in surviving osteoprogenitors and osteoblasts. When correction occurs during early postnatal growth, abundant mesenchymal stem and progenitor cells rapidly populate modeling bone surfaces to normalize cortical thickness and trabecular volume; when initiated after skeletal maturity, irreversible senescence of chondro-osseous progenitors and low baseline remodeling rates restrict the replacement of pre-existing dysplastic bone matrix. Prediction: Both early and late genetic correction will normalize nuclear morphology and osteogenic gene expression in active osteoblasts within weeks, whereas micro-CT cortical bone volume and three-point bending fracture resistance will fully normalize only in the early-treated cohort, with late-treated animals showing a rescue trajectory proportional to bone formation rate and residual Sca-1+/PDGFRa+ progenitor frequency.", "articleFinding": "Adenine base editing of the pathogenic LMNA variant reduced progerin expression, restored extracellular-matrix deposition and mineralization in progeroid osteoblasts, and partially rescued bone structure and physical properties in mice. In vivo correction was strongly age-dependent, with early postnatal delivery producing substantially greater editing and skeletal benefit than later treatment.", "doi": "10.1111/acel.70700", "pmid": "42689491", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 4 }, { "judge": "claude-opus-5-5", "score": 4 }, { "judge": "grok-4.7", "score": 3 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42723546", "id": "H4", "index": 0, "question": "Can a cell-free regenerative treatment alleviate UV-induced skin photoaging, and which causal intracellular mechanism mediates its protective effects?", "text": "Cell-free regenerative therapy (such as stem cell-derived extracellular vesicles) alleviates UV-induced skin photoaging by activating PINK1/Parkin-mediated mitophagy to clear damaged mitochondria. This targeted organelle clearance prevents the leakage of mitochondrial DNA (mtDNA) into the cytosol, thereby suppressing activation of the cGAS–STING innate immune pathway and downstream senescence-associated secretory phenotype (SASP) inflammation. Mechanism: Bioactive cargo within the cell-free treatment stimulates PINK1 stabilization and Parkin recruitment to depolarized mitochondria in UV-irradiated keratinocytes and dermal fibroblasts, promoting their autophagic degradation. By eliminating dysfunctional mitochondria before outer membrane permeabilization or mPTP opening can occur, the treatment prevents cytosolic accumulation of oxidized mtDNA, blocking cGAS recognition, 2'3'-cGAMP synthesis, STING/TBK1/IRF3/NF-κB phosphorylation, and the resulting sterile inflammatory and senescent state. Prediction: Genetic depletion of PINK1/Parkin or pharmacological inhibition of mitophagy in UV-exposed skin models will abolish the therapy's ability to reduce cytosolic mtDNA levels, STING phosphorylation, SASP cytokine secretion, and p16/p21 expression, whereas exogenous STING agonists (e.g., DMXAA or cGAMP) will override the protective effects despite intact mitochondrial clearance.", "articleFinding": "Human umbilical cord mesenchymal stem cell secretome protects against UV-induced photoaging by enhancing mitophagy, which clears damaged mitochondria and reduces cytosolic mitochondrial DNA leakage. This suppresses cGAS-STING signaling and downstream inflammatory cytokines; mitophagy inhibition abolishes protection, while STING inhibition restores it.", "doi": "10.1111/acel.70701", "pmid": "42723546", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 4 }, { "judge": "claude-opus-5-5", "score": 5 }, { "judge": "grok-4.7", "score": 4 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42736449", "id": "H4", "index": 1, "question": "Can an unannotated protein product that is altered in Alzheimer's disease causally regulate cellular function relevant to disease pathology?", "text": "Disease-associated dysregulation of an unannotated small open reading frame (sORF)-encoded microprotein localized to the inner mitochondrial membrane causally impairs oxidative phosphorylation and drives bioenergetic failure in Alzheimer's disease neurons independently of the canonical protein encoded at the same locus. Mechanism: Uncoupled translational regulation or transcript isoform switching in Alzheimer's disease alters the abundance of a mitochondrial-targeted microprotein encoded by an upstream or overlapping reading frame. This microprotein normally acts as an assembly or stabilizing factor for electron transport chain supercomplexes, and its perturbation in disease disrupts Complex I/IV activity, reduces ATP synthesis, and elevates mitochondrial reactive oxygen species (mtROS). Prediction: Selective genetic restoration or ablation of the unannotated microprotein in neuronal models—while holding canonical host protein expression constant—directly modifies basal and maximal oxygen consumption rates, mitochondrial membrane potential, and mtROS levels, and affinity purification-mass spectrometry confirms its physical interaction with respiratory chain subunits.", "articleFinding": "A small open reading frame at the MKKS locus encodes a 63-amino-acid microprotein that is the locus's predominant translation product and is downregulated in Alzheimer's disease. Experimental loss of this microprotein impairs mitochondrial respiration in microglia, supporting a causal role in microglial bioenergetics.", "doi": "10.1038/s43587-026-01207-x", "pmid": "42736449", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 3 }, { "judge": "claude-opus-5-5", "score": 3 }, { "judge": "grok-4.7", "score": 3 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42775695", "id": "H4", "index": 0, "question": "What causes defective mitochondrial quality-control flux in the aging heart, and how can restoring mitochondrial homeostasis reverse cardiac aging?", "text": "Age-associated hyperactivation of cardiac mTORC1 and upregulation of the Beclin-1 inhibitor Rubicon, combined with impaired TFEB nuclear translocation, block late-stage mitophagosome-lysosome fusion and lysosomal acidification in cardiomyocytes, stalling mitophagy flux mid-stream. Therapeutically restoring lysosomal biogenesis and autolysosomal fusion clears accumulated mitophagosomal intermediates, suppresses cytosolic mtDNA sensing, and reverses age-related diastolic and systolic dysfunction. Mechanism: In aged cardiomyocytes, chronic nutrient and stress signaling elevates mTORC1 activity and Rubicon expression, which inhibits the UVRAG-Vps34 complex and retains TFEB in the cytosol while diminishing v-ATPase-dependent lysosomal acidification. Because early mitochondrial damage continues to trigger priming and autophagosomal engulfment against a downstream bottleneck in Rab7/SNARE-mediated lysosomal fusion and proteolysis, un-degraded mitophagosomes accumulate, leak oxidized mtDNA into the cytosol, and activate cGAS-STING and NLRP3 inflammatory signaling. Prediction: Dual-fluorescent mitophagy reporter mice (such as mt-Keima or mito-QC) will show an increased ratio of neutral-pH mitophagosomes to acidic mitolysosomes in aged hearts rather than a lack of autophagosomal sequestration; furthermore, stimulating early mitophagy initiation alone will exacerbate cardiomyocyte toxicity, whereas Rubicon depletion or TFEB activation will restore acidic mitolysosome formation and rescue ventricular function.", "articleFinding": "Age-associated upregulation of HIF-3α drives excessive BNIP3 expression in senescent cardiomyocytes, causing mitophagy flux congestion and cardiac aging. Mitochondrial transplantation restores intracellular ATP homeostasis, restrains pathological HIF-3α–BNIP3 signaling, normalizes mitophagy flux, and rejuvenates the aging heart.", "doi": "10.1111/acel.70720", "pmid": "42775695", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42805954", "id": "H5", "index": 0, "question": "What causal mechanism contributes to the age-related decline of thermogenic adipocytes in subcutaneous white adipose tissue?", "text": "Age-related decline in subcutaneous white adipose tissue (scWAT) thermogenesis is driven by the loss of adipocyte- and stromal-derived neurotrophic factors (such as NGF, BDNF, and S100B) alongside increased repulsive axon guidance cues (such as SEMA3A), causing structural retraction of sympathetic nerve arborizations. Without dense peri-adipocyte sympathetic innervation, environmental cold stimuli fail to deliver sufficient local norepinephrine to recruit beige adipocytes. Mechanism: Transcriptional and epigenetic remodelling of ageing adipocytes and PDGFRalpha+ stromal progenitors downregulates retrograde neurotrophic signals (NGF/TrkA and CLSTN3B-S100B axes) while upregulating semaphorin-neuropilin repulsive signalling, leading to axonal die-back of tyrosine hydroxylase-positive (TH+) sympathetic fibres and physical uncoupling of the neuro-adipose junction. Prediction: 3D whole-mount immunolabelling of aged scWAT will reveal a marked reduction in TH+ sympathetic nerve fibre density and branching prior to losing intrinsic adipocyte responsiveness to exogenous beta-3-adrenergic agonists (CL316,243), and viral restoration of NGF or S100B in aged scWAT will regenerate axonal arbors and restore cold-induced UCP1+ beige adipocyte formation.", "articleFinding": "Microglial ALKBH5 suppresses Ntf5 expression by demethylating Ntf5 mRNA, thereby limiting activation of PVH TrkB-positive neurons, sympathetic innervation of subcutaneous white adipose tissue, and adipocyte browning. Microglia-specific ALKBH5 knockout preserved brown adipocytes and improved metabolic activity during ageing in male mice.", "doi": "10.1038/s41467-026-77050-w", "pmid": "42805954", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42810392", "id": "H4", "index": 0, "question": "Can direct pharmacological activation of a conserved metabolic target extend lifespan across evolutionarily diverse organisms and induce longevity-associated changes in mammals?", "text": "Direct allosteric activation of the conserved energy sensor AMP-activated protein kinase (AMPK) is sufficient to extend lifespan across evolutionarily diverse invertebrates and induce caloric-restriction-like metabolic rejuvenation in mammals without requiring mitochondrial electron transport chain inhibition. Engaging AMPK directly via its allosteric binding pocket bypasses the pleiotropic off-target effects of indirect metabolic poisons to drive conserved pro-longevity programs. Mechanism: Selective small-molecule binding to the AMPK heterotrimeric complex (such as at the allosteric drug and metabolite [ADaM] site between the alpha-kinase domain and beta-carbohydrate-binding module) stabilizes the active enzyme conformation and prevents dephosphorylation of Thr172. Activated AMPK directly phosphorylates conserved downstream substrates—including ULK1 to initiate autophagy, ACC1/2 to promote fatty acid beta-oxidation, Raptor/TSC2 to restrain mTORC1 signaling, and FOXO/PGC-1alpha to enhance mitochondrial quality control and oxidative stress resistance. Prediction: Administration of a selective direct AMPK activator extends median and maximum lifespan in wild-type C. elegans and Drosophila and improves insulin sensitivity, autophagic flux, and transcriptomic age biomarkers in aged mice without altering cellular ATP/AMP ratios or complex I respiration, whereas genetic ablation of the catalytic AMPK alpha-subunit (aak-2 in worms, AMPKalpha in flies and mice) or point mutation of the allosteric drug-binding pocket completely abolishes both lifespan extension and mammalian metabolic benefits.", "articleFinding": "Direct pharmacological activation of AMPK with compound 991 extends lifespan in Drosophila melanogaster, Caenorhabditis elegans, and Schizosaccharomyces pombe. In mice, 991 induces a proteomic profile associated with pro-longevity biology, supporting the translational potential of AMPK activation.", "doi": "10.1111/acel.70721", "pmid": "42810392", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 3 }, { "judge": "claude-opus-5-5", "score": 5 }, { "judge": "grok-4.7", "score": 4 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42826184", "id": "H1", "index": 1, "question": "What causal molecular mechanism remodels three-dimensional genome organization during ageing and thereby promotes age-associated inflammatory and activation-related transcription?", "text": "Chronic age-associated stress and metabolic signaling induce persistent chromatin engagement of pioneer and inducible transcription factors—principally AP-1 (FOS/JUN) and NF-κB—which actively redistribute SWI/SNF (BAF) chromatin remodelers and cohesin complexes to form de novo enhancer-promoter loops at inflammatory and activation-related loci. This factor-driven recruitment sequesters architectural loop-extrusion machinery away from homeostatic lineage-identity super-enhancers, simultaneously promoting basal activation programs and impairing specialized immune function. Mechanism: Persistent low-grade signaling stabilizes AP-1 complexes at latent distal enhancers, where they recruit BAF remodelers to open chromatin and anchor cohesin-Mediator complexes, establishing de novo long-range chromatin loops with cytokine and activation promoters at the expense of homeostatic cell-identity loops. Prediction: Acute genetic or pharmacological inhibition of AP-1 DNA binding or BAF ATPase activity in aged cells will selectively collapse age-acquired enhancer-promoter loops at inflammatory loci in H3K27ac/cohesin HiChIP assays, redistribute cohesin back to homeostatic identity loci, and reverse the basal activation transcriptional signature.", "articleFinding": "Age-associated reduction of SATB1 in naive CD4+ T cells weakens TAD boundaries and expands the range of CTCF-mediated interactions without changing CTCF occupancy, producing enhancer-promoter rewiring and increased expression of proinflammatory and proactivation genes. Conditional SATB1 deletion recapitulates these ageing-associated architectural and transcriptional changes, establishing SATB1 deficiency as a causal contributor.", "doi": "10.1126/sciadv.aeg1622", "pmid": "42826184", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 1 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42842666", "id": "H3", "index": 0, "question": "How do the different cellular compartments of the vascular wall causally contribute to distinct features of Hutchinson-Gilford progeria vascular pathology?", "text": "Progerin expression in medial vascular smooth muscle cells (VSMCs) and intimal endothelial cells (ECs) drives distinct pathological features in a strictly cell-autonomous, compartment-specific manner: mutant VSMCs directly generate extracellular-matrix (ECM) abnormalities and collagen accumulation, whereas mutant ECs independently drive vascular inflammation. Neither compartment requires the LMNA mutation in the neighbouring layer to manifest its signature pathology. Mechanism: In the tunica media, progerin-induced nuclear lamina stiffening disrupts LINC-complex mechanotransduction under cyclic stretch, shifting VSMCs from a contractile to a synthetic, profibrotic phenotype with elevated collagen and matrix metalloproteinase production. Concurrently, in the tunica intima, progerin impairs endothelial adaptation to laminar shear stress, directly activating NF-kappaB transcriptional programs and surface adhesion molecules (ICAM-1, VCAM-1) without altering mural matrix synthesis. Prediction: In heterotypic three-dimensional blood-vessel models or lineage-specific mosaic mice, vessels composed of HGPS VSMCs and wild-type ECs will exhibit medial ECM disorganization and collagen accumulation without endothelial inflammatory activation, whereas vessels with HGPS ECs and wild-type VSMCs will display robust intimal inflammation and leukocyte adhesion without medial fibrosis.", "articleFinding": "In trilayer engineered blood vessels, HGPS fibroblasts causally promoted extracellular-matrix dysregulation and fibrotic signaling, while HGPS smooth muscle cells drove collagen accumulation and endothelial cells drove inflammation. Correcting the HGPS-associated mutation by base editing restored many pathological characteristics toward healthy levels.", "doi": "10.1126/sciadv.aeh3785", "pmid": "42842666", "articleMatch": 1, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 3 }, { "judge": "claude-opus-5-5", "score": 4 }, { "judge": "grok-4.7", "score": 3 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42853938", "id": "H4", "index": 0, "question": "What splicing-dependent mechanism enables resistance to CDK4/6 inhibition, and can disrupting it restore therapy-induced senescence?", "text": "Sustained activity of the protein arginine methyltransferase PRMT5 enables resistance to CDK4/6 inhibition by maintaining spliceosomal fidelity required for productive splicing of MDM4 and the histone methyltransferase EZH2. Pharmacological inhibition of PRMT5 or antisense oligonucleotide-mediated skipping of MDM4 exon 6 disrupts this axis, restoring p53 activation, H3K27me3 loss at senescence loci, and durable therapy-induced senescence. Mechanism: In drug-sensitive cells, CDK4/6 inhibition suppresses E2F-dependent expression of PRMT5 cofactors (such as WDR77/MEP50), reducing symmetric dimethylation of spliceosomal Sm proteins (SmD1/SmD3). This hypomethylation impairs recognition of weak 5' splice sites, causing exon 6 skipping in MDM4 (generating unstable MDM4-S subject to nonsense-mediated decay) and intron retention in EZH2, which together unleash p53-p21 signaling and derepress H3K27me3-silenced senescence genes. Resistant cells maintain high PRMT5-WDR77 activity independently of CDK4/6, preserving full-length MDM4 to degrade p53 and full-length EZH2 to epigenetically silence CDKN2A and SASP enhancers; blocking PRMT5 or directly forcing MDM4 exon 6 skipping re-establishes both p53 transcriptional activity and chromatin derepression required for irreversible arrest. Prediction: In CDK4/6 inhibitor-resistant cells with wild-type TP53, RNA-seq and anti-sDMA immunoprecipitation will reveal preserved Sm protein symmetric dimethylation alongside full-length MDM4 (exon 6 inclusion) and EZH2 transcripts, and combining palbociclib with a PRMT5 inhibitor or an MDM4 exon 6 splice-switching oligonucleotide—unlike inhibiting downstream CDK2 alone—will selectively restore SA-beta-gal activity and p21/SASP induction without requiring exogenous DNA damage.", "articleFinding": "Increased inclusion of exon 2 drives SUV39H2 overexpression and CDK4/6 inhibitor resistance. Suppressing SUV39H2 expression or methyltransferase activity removes H3K9me3 from enhancer regions, opens associated promoters, activates p21 and other senescence-associated genes, and restores therapy-induced senescence.", "doi": "10.1126/sciadv.aea2001", "pmid": "42853938", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42858183", "id": "H3", "index": 0, "question": "Can a defined intervention preserve lysosomal function and protein homeostasis during aging, thereby extending lifespan and maintaining organismal function, and through what mechanism?", "text": "Dietary supplementation with the polyamine spermidine preserves lysosomal proteolytic activity and maintains protein homeostasis during aging, thereby extending lifespan and organismal function, by sustaining the eIF5A-dependent translation of the master lysosomal transcription factor TFEB (HLH-30). Mechanism: Spermidine serves as the sole aminobutyl donor for the enzymatic hypusination of eukaryotic translation initiation factor 5A (eIF5A) via deoxyhypusine synthase (DHPS) and deoxyhypusine hydroxylase (DOHH). Hypusinated eIF5A resolves ribosome stalling at polyproline motifs within TFEB/HLH-30 mRNA, preventing age-related translational decline of TFEB and maintaining transcription of the Coordinated Lysosomal Expression and Regulation (CLEAR) network, including V-ATPase subunits and cathepsin hydrolases. Prediction: Spermidine treatment in aged organisms will restore nuclear TFEB/HLH-30 levels, lysosomal cathepsin activity, and clearance of insoluble ubiquitinated protein aggregates to extend lifespan, whereas pharmacological inhibition of DHPS (via GC7) or mutation of the eIF5A hypusination site (K50A) will completely abolish these benefits even when mTORC1 is pharmacologically inhibited to force nuclear translocation of existing TFEB.", "articleFinding": "20(S)-ginsenoside Rg3 extended lifespan and preserved physiological and neuronal function in Caenorhabditis elegans by restoring lysosomal activity and autophagic flux. Rg3 remodeled neuronal lysosomal phosphoinositide signatures toward increased PI(4)P and reduced PI(3)P, suppressed RSKS-1/S6K–TORC1 signaling, and promoted nuclear HLH-30/TFEB activity, thereby improving proteostasis and resistance to polyglutamine- and α-synuclein-associated toxicity.", "doi": "10.1111/acel.70755", "pmid": "42858183", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 3 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 2 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] }, { "task": "R42585340", "id": "H5", "index": 0, "question": "Which molecular mechanism enables mild cellular stress to preserve protein homeostasis during ageing and extend organismal lifespan?", "text": "Mild thermal or proteotoxic stress extends lifespan and prevents age-related protein aggregation by co-activating heat shock factor 1 (HSF-1) and the transcription factor TFEB/HLH-30 to transcriptionally upregulate the macroautophagy-lysosome machinery. Rather than relying solely on molecular chaperones to refold proteins, this hormetic response causally requires autophagic clearance of misfolded and aggregation-prone proteins to maintain organismal proteostasis. Mechanism: Transient sub-lethal stress triggers HSF-1 trimerization and nuclear translocation alongside calcineurin- and mTORC1-regulated nuclear entry of TFEB (HLH-30 in C. elegans). Together, HSF-1 and TFEB/HLH-30 drive coordinated transcription of core autophagy-related genes (such as ATG8/LC3/lgg-1, ULK1/unc-51, and SQSTM1/p62/sqst-1) and lysosomal hydrolases, increasing autophagic flux to encapsulate and degrade ubiquitinated protein oligomers before they form insoluble toxic aggregates. Prediction: Genetic ablation or RNAi knockdown of TFEB/HLH-30 or core autophagy execution genes (such as ATG5, ATG7, or BECN1/bec-1) specifically after mild stress exposure will abolish both the clearance of polyglutamine or amyloid aggregates and the lifespan extension, even when HSF-1-dependent chaperone induction (HSP70/HSP90) and 26S proteasome activity remain intact.", "articleFinding": "In Caenorhabditis elegans, inhibition of mitochondrial respiration activates an intestinal ELT-2-dependent transcriptional program that increases lysosomal proteolysis during ageing, largely independently of the mitochondrial unfolded protein response. Direct promoter binding by ELT-2, requiring residue R249, and the lysosomal proteases CPR-5 and CPR-8 are necessary for toxic polyglutamine aggregate clearance and mitochondrial stress-induced lifespan extension.", "doi": "10.1126/sciadv.aeh0657", "pmid": "42585340", "articleMatch": 0, "judgeScores": [ { "judge": "gpt-5.6-sol", "score": 2 }, { "judge": "claude-opus-5-5", "score": 2 }, { "judge": "grok-4.7", "score": 3 } ], "votes": [ { "model": "claude-sonnet-5-5", "yes": true }, { "model": "gpt-6-astra", "yes": true }, { "model": "gemini-4-argon-high", "yes": true }, { "model": "grok-4.5", "yes": true } ] } ] }