Omega Point · Lab
Hypotheses
Every hypothesis every run has written, newest run first. Each row says where it is: being named, waiting for the rest of its run, checked for duplicates, approved and being explained, published. A duplicate names the earlier hypothesis it restates. A published row links to its public page; nothing else is a link.
Run: pipeline-6a611424897dthe run
| Hypothesis▲ | Question asked▲ | Date▼ | Lens▲ | Status▲ |
|---|---|---|---|---|
| Stable regulatory immune cells can directly injure donor blood vessels during inflammation IH_Q_L3_M_G2_1_01 · #0 In cytokine-conditioned donor endothelial cultures with fate-mapped mouse regulatory T cells, the hypothesis predicts donor killing despite preserved immune suppression. Killing by purified cells, abolished by disrupting granzyme or removing the recognized donor ligand, would distinguish direct injury from the rivals. Explains the gap: Can donor-reactive Tregs remain abundant, lineage-stable, and suppressive in standard assays while inflammatory challenge permits donor killing, falsifying regulatory persistence as evidence of durable acceptance? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | regulatory effector target inversion | Awaiting review Awaiting a curator |
| Inflammation spreads donor-directed immune activation faster than regulatory cells can stop it IH_Q_L3_M_G2_1_02 · #1 In a reconstituted donor-antigen presentation system, then graft-draining lymphoid tissue, activation chains could permit donor killing despite effective regulatory T cells. Redistributing matched contacts should increase killing; interrupting highly connected units should prevent it. Explains the gap: Can donor-reactive Tregs remain abundant, lineage-stable, and suppressive in standard assays while inflammatory challenge permits donor killing, falsifying regulatory persistence as evidence of durable acceptance? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Inflammation makes donor cells vulnerable to killing by impairing membrane repair IH_Q_L3_M_G2_1_03 · #2 In donor-derived endothelial or epithelial cultures, inflammation is proposed to weaken membrane repair despite preserved regulatory T-cell suppression. Restoring repair would reduce donor death at unchanged attack intensity; normal resealing during increased killing would reject the mechanism. Explains the gap: Can donor-reactive Tregs remain abundant, lineage-stable, and suppressive in standard assays while inflammatory challenge permits donor killing, falsifying regulatory persistence as evidence of durable acceptance? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Interfaces and barriers | Awaiting review Awaiting a curator |
| Faster graft drainage increases immune sensitization by preserving donor peptides IH_Q_L3_M_G2_3_01 · #3 In a vascularized animal graft model, surviving donor peptides would explain the immune response caused by faster drainage. Destroying those peptides must eliminate sensitization, and adding them back must restore donor-target injury even when emigrating antigen-presenting cells and donor vesicles are excluded. Explains the gap: Can faster graft drainage increase sensitization despite accelerating edema recovery, and does Darcy-law fluid clearance or antigen-bearing cell export determine the safe recovery window? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | extracellular antigen processing | Awaiting review Awaiting a curator |
| Faster graft drainage causes sensitization when it lets donor vesicles through IH_Q_L3_M_G2_3_02 · #4 The hypothesis says faster fluid clearance helps transplanted tissue unless it also passes donor vesicles—membrane-bound particles that carry donor antigens. At equal fluid clearance, removing and restoring these particles would decide whether they drive donor-directed immune responses. Explains the gap: Can faster graft drainage increase sensitization despite accelerating edema recovery, and does Darcy-law fluid clearance or antigen-bearing cell export determine the safe recovery window? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Interfaces and barriers | Awaiting review Awaiting a curator |
| Borrowed recipient immune markers let pathogen-specific memory attack donor tissue IH_Q_L3_M_G2_2_01 · #5 Uninfected donor cells acquire recipient human leukocyte antigen (HLA)–pathogen-peptide complexes and become targets of protective immune memory despite donor-specific tolerance. Blocking acquired recipient HLA, but not donor HLA, would prevent killing. Explains the gap: Does apparent acquisition of donor-reactive memory reflect changed lymphocytes, changed graft targets, or cytokine-driven killing without donor recognition when pre-event and post-event effectors and targets are crossed experimentally? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | antigen provenance reassignment | Awaiting review Awaiting a curator |
| Graft killing depends on overlapping, short-lived permissions in immune cells and targets IH_Q_L3_M_G2_2_02 · #6 In effectors and donor targets, killing would depend on donor-specific priming preceding temporary target susceptibility. With T-cell receptor identity and other specified factors fixed, an order-sensitive killing window would distinguish this timing mechanism from lasting changes in either cell population. Explains the gap: Does apparent acquisition of donor-reactive memory reflect changed lymphocytes, changed graft targets, or cytokine-driven killing without donor recognition when pre-event and post-event effectors and targets are crossed experimentally? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Protective immune recall expands existing cells that recognize both pathogens and donor tissue IH_Q_L3_M_G2_2_03 · #7 The hypothesis attributes newly detectable donor killing to expansion of existing dual-reactive T cell receptor (TCR) populations. It predicts that reconstructed receptors recognize both targets, removing those populations removes excess killing, and restoring their abundance restores it. Explains the gap: Does apparent acquisition of donor-reactive memory reflect changed lymphocytes, changed graft targets, or cytokine-driven killing without donor recognition when pre-event and post-event effectors and targets are crossed experimentally? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | receptor encoded population selection | Awaiting review Awaiting a curator |
| Inflammatory signals enable immune cells to kill donor tissue without recognizing it as foreign IH_Q_L3_M_G2_2_04 · #8 Cytokines may enable memory CD8 cells or natural killer (NK)-like cells to damage stressed donor tissue without donor-specific T-cell receptor (TCR) recognition. Killing that survives blocked donor recognition but falls when cytokine or stress-receptor pathways are interrupted would distinguish this mechanism. Explains the gap: Does apparent acquisition of donor-reactive memory reflect changed lymphocytes, changed graft targets, or cytokine-driven killing without donor recognition when pre-event and post-event effectors and targets are crossed experimentally? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | System and environment | Awaiting review Awaiting a curator |
| A stable timing gap can protect grafts while preserving immune killing ability IH_Q_L3_M_G2_5_01 · #9 In donor organoids and recipient cytotoxic cells, then animal grafts, separating antigen display from immune killing readiness would protect donor cells without suppressing immunity. Killing integrated over 48–72 hours would test whether restoring a timing gap reduces death and synchronization increases it. Explains the gap: Is apparent systemic–graft recovery lag caused by clock misalignment, sampling phase, or persistent local injury, and does correcting phase eliminate donor killing rather than merely normalize surveillance signals? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | temporal antigen effector coincidence | Archived Duplicate of Graft killing depends on overlapping, short-lived permissions in immune cells and targets |
| Overlapping gaps in two local immune brakes permit donor-cell killing IH_Q_L3_M_G2_5_02 · #10 In an organoid–effector system, either local inhibitory channel is proposed to protect donor cells. Injury should increase with the fraction of recovery time when both channels are insufficient; strong killing while one sufficient channel stays active would falsify the claim. Explains the gap: Is apparent systemic–graft recovery lag caused by clock misalignment, sampling phase, or persistent local injury, and does correcting phase eliminate donor killing rather than merely normalize surveillance signals? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | redundant local inhibitory failures | Awaiting review Awaiting a curator |
| Recipient immune cells destroy stressed donor cells that could still recover IH_Q_L3_M_G2_5_03 · #11 In lineage-labeled neural graft slices or organoid–macrophage cultures, recipient phagocytes are proposed to engulf living donor cells. Blocking recognition must rescue donor function without correcting clock phase; accumulation of dead cells alone would falsify the mechanism. Explains the gap: Is apparent systemic–graft recovery lag caused by clock misalignment, sampling phase, or persistent local injury, and does correcting phase eliminate donor killing rather than merely normalize surveillance signals? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | phagocytic execution of viable targets | Awaiting review Awaiting a curator |
| Macrophage memory protects grafts while preserving immune defenses IH_Q_L3_M_G2_4_01 · #12 In mouse allograft models and reconstructed graft cultures, exposure-conditioned macrophages would preserve graft acceptance without disabling donor-reactive lymphocytes. Protection transferred against preactivated attackers, with pathogen control intact, would distinguish the claim. Explains the gap: Do overlapping mild exposures lower graft injury thresholds through lymphocyte memory or persistent stromal state, and can the same exposure history instead induce protective myeloid tolerance? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | myeloid chromatin partitioning | Awaiting review Awaiting a curator |
| Repeated exposure leaves matrix damage that makes grafts easier to injure IH_Q_L3_M_G2_4_02 · #13 In graft tissues or engineered tissue constructs, accumulated collagen defects would preserve exposure history. Transfer of greater injury susceptibility with exposed matrix, linked to mechanical weakening and prevented by matrix replacement or reduced loading, would distinguish this mechanism. Explains the gap: Do overlapping mild exposures lower graft injury thresholds through lymphocyte memory or persistent stromal state, and can the same exposure history instead induce protective myeloid tolerance? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Structure and topology | Awaiting review Awaiting a curator |
| Apparent changes in graft injury thresholds reflect measurement and recovery timing IH_Q_L3_M_G2_4_03 · #14 In transplanted tissue, exposure history appears to change injury thresholds because earlier injury and response timing distort comparisons. Measuring new donor-cell killing at matched recovery states would reveal equivalent thresholds; stable transfer of altered killing would falsify this explanation. Explains the gap: Do overlapping mild exposures lower graft injury thresholds through lymphocyte memory or persistent stromal state, and can the same exposure history instead induce protective myeloid tolerance? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Measurement and interpretation | Awaiting review Awaiting a curator |
| Overlapping exposures change pathogen-reactive antibodies so they also attack donor tissue IH_Q_L3_M_G2_4_04 · #15 The hypothesis places exposure memory in changed antibody sequences. Reconstructed antibodies from a pathogen-reactive B-cell lineage would injure viable donor targets at equal concentration while retaining pathogen recognition; ancestors and mutation-reverted variants would not. Explains the gap: Do overlapping mild exposures lower graft injury thresholds through lymphocyte memory or persistent stromal state, and can the same exposure history instead induce protective myeloid tolerance? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | adaptive receptor sequence evolution | Awaiting review Awaiting a curator |
| Excess oxygen delivery can initiate injury in transplanted tissue before oxygen runs short IH_Q_L3_M_G3_1_01 · #16 In perfused cardiac microtissues, the hypothesis predicts that increased oxygen delivery triggers mitochondrial oxidants before adenosine triphosphate (ATP) loss and injury. Protection from lowering oxygen while maintaining adequate regional oxygenation would distinguish oxygen excess from oxygen shortage. Explains the gap: At matched total perfusion, does redistributing capillary transit times prevent challenge-induced injury better than increasing inflow, and can higher inflow worsen regional oxygen debt while aggregate graft output improves? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | redox reaction kinetics | Awaiting review Awaiting a curator |
| Confinement makes expanding graft tissue buckle and injure cells before oxygen runs short IH_Q_L3_M_G3_1_02 · #17 In vascularized graft tissue, filling-induced expansion against a less compliant surrounding layer is proposed to injure cells mechanically. At matched flow, red-cell transit, oxygenation and workload, confinement must shift the injury threshold, and mechanical release must protect without changing oxygen extraction. Explains the gap: At matched total perfusion, does redistributing capillary transit times prevent challenge-induced injury better than increasing inflow, and can higher inflow worsen regional oxygen debt while aggregate graft output improves? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Structure and topology | Awaiting review Awaiting a curator |
| Uneven capillary transit times conceal regional oxygen shortage and initiate graft injury IH_Q_L3_M_G3_1_03 · #18 In perfused microvascular graft constructs, uneven red-cell passage limits oxygen extraction. Equalizing passage times at matched flow and other stated conditions would support the claim if regional oxygenation and adenosine triphosphate (ATP) improve and injury is prevented. Explains the gap: At matched total perfusion, does redistributing capillary transit times prevent challenge-induced injury better than increasing inflow, and can higher inflow worsen regional oxygen debt while aggregate graft output improves? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Interfaces and barriers | Awaiting review Awaiting a curator |
| Restoring sensory feedback can destabilize heart grafts with unequal regional response delays IH_Q_L3_M_G3_3_01 · #19 In cardiac allografts with unequal regional response delays, preserving motor signals while interrupting sensory feedback is proposed to improve reserve. The deciding observation is whether interruption stops demand-transition oscillations and restoring feedback immediately brings them back. Explains the gap: Can stronger graft–recipient signaling destabilize function when regional response delays differ, and does experimentally reducing coupling restore reserve more reliably than increasing coupling during repeated demand transitions? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Shared stimulation reduces graft reserve by forcing regions to contract together IH_Q_L3_M_G3_3_02 · #20 In myocardium, regional contraction timing is proposed to adjust to its mechanical advantage. With recipient sensory feedback interrupted and calcium-release alternans excluded, an advantage that reverses as early recruitment becomes common, followed by recruitment updating, would distinguish the mechanism. Explains the gap: Can stronger graft–recipient signaling destabilize function when regional response delays differ, and does experimentally reducing coupling restore reserve more reliably than increasing coupling during repeated demand transitions? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | frequency dependent work allocation | Awaiting review Awaiting a curator |
| Strong signals destabilize graft contractions when calcium release has not recovered IH_Q_L3_M_G3_3_03 · #21 In graft heart tissue, calcium-release recovery limits would explain unstable contractions. Calcium alternation before force alternation, persistence after sensory feedback interruption, and rescue by retiming stimuli at matched mean pacing rate and output would distinguish this mechanism. Explains the gap: Can stronger graft–recipient signaling destabilize function when regional response delays differ, and does experimentally reducing coupling restore reserve more reliably than increasing coupling during repeated demand transitions? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | excitation contraction refractoriness | Awaiting review Awaiting a curator |
| Lymphatic contact can reduce donor-directed immune activation by already matured immune cells IH_Q_L3_M_G3_2_01 · #22 In a perfused lymphatic-endothelial platform, contact would reduce donor-specific immune priming by already pathogen-matured dendritic cells. Equal-cell transfer into lymph nodes would test whether contact reduces priming per cell while preserving antigen display. Explains the gap: Can lymphatic hydraulic clearance and donor-antigen trafficking be independently controlled, or does the drainage needed to prevent pressure-driven exchange collapse necessarily increase sensitization during inflammatory challenges? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | contact dependent apc deactivation | Awaiting review Awaiting a curator |
| Lymphatic drainage can continue while broken cell routes prevent immune sensitization IH_Q_L3_M_G3_2_02 · #23 In graft-to-node lymphatic networks, interrupted cell guidance could preserve fluid drainage while preventing donor-directed immunity. Protection confined to essential cellular routes, with immune activation fully restored by direct delivery of equal cell numbers into nodes, would distinguish this mechanism. Explains the gap: Can lymphatic hydraulic clearance and donor-antigen trafficking be independently controlled, or does the drainage needed to prevent pressure-driven exchange collapse necessarily increase sensitization during inflammatory challenges? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Structure and topology | Awaiting review Awaiting a curator |
| Acquired genetic damage leaves graft repair cells prone to lasting scarring IH_Q_L3_M_G3_4_01 · #24 In graft-derived fibroblasts, acquired DNA (deoxyribonucleic acid) lesions would make later interleukin-33–amphiregulin repair signals cause lasting fibrosis. Correcting a causal lesion must stop persistent collagen production; introducing it into previously uninjured matched cells must recreate it. Explains the gap: After inflammation appears resolved, does matrix mechanical memory determine whether the next mild insult converts IL-33–amphiregulin repair from protection into fibrosis, and can resetting mechanics prevent that switch without suppressing host defense? | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | somatic genome damage | Awaiting review Awaiting a curator |
| Competition for nutrients shifts tissue repair toward scarring IH_Q_L3_M_G3_4_02 · #25 In perfused lung-graft cultures, the hypothesis predicts that redirecting glutamine uptake toward regenerating lung cells restores repair and reduces collagen production. Measured nutrient allocation must match an independently calibrated model; persistent scarring after redistribution would reject it. Explains the gap: After inflammation appears resolved, does matrix mechanical memory determine whether the next mild insult converts IL-33–amphiregulin repair from protection into fibrosis, and can resetting mechanics prevent that switch without suppressing host defense? | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Resource and energy | Awaiting review Awaiting a curator |
| Scar electrical activity drives hidden loss of heart graft reserve IH_Q_L3_M_G3_5_01 · #26 In an electrically integrated cardiac graft, coordinated scar-cell activity could destroy regional contractile reserve while metabolism appears normal. Suppressing that activity should stop deterioration; replaying it in equally injured dispersed tissue should reproduce deterioration. Explains the gap: Can spatially clustered graft damage cross an irreversible reserve threshold while challenge-resolved metabolic surveillance remains normal because recipient compensation masks failure, despite detecting equally extensive dispersed damage? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Clustered graft damage needs more uninterrupted repair time than dispersed damage IH_Q_L3_M_G3_5_02 · #27 In perfused engineered cardiac constructs, clustered damage is proposed to require longer repair than equally extensive dispersed damage. Independently estimated minimum repair times, in seconds, would be tested against recovery as protected repair intervals increase. Explains the gap: Can spatially clustered graft damage cross an irreversible reserve threshold while challenge-resolved metabolic surveillance remains normal because recipient compensation masks failure, despite detecting equally extensive dispersed damage? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | repair dissipation rate | Awaiting review Awaiting a curator |
| Suppressive immune cells can worsen graft injury by keeping donor-antigen presenters alive IH_Q_L3_M_G1_1_01 · #28 In paired human cultures, functional regulatory T cells could protect recipient antigen-presenting cells and prolong donor stimulation, increasing delayed donor-tissue killing. Equalizing presenter lifespan would eliminate that increase if presenter survival causes it. Explains the gap: Can dual-specificity Tregs fail despite retained suppressive function when donor presenters disappear, recipient APCs acquire intact donor HLA, and newly introduced pathogen-memory clones encounter the graft? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | antigen presenter survival feedback | Awaiting review Awaiting a curator |
| Immune restraint fails when dangerous donor presenters lack matching regulatory signals IH_Q_L3_M_G1_1_02 · #29 Recipient antigen-presenting cells may stimulate donor-reactive memory cells without displaying signals recognized by regulatory T cells. The hypothesis predicts that placing both signals on the same presenting cells restores selective restraint; equal restraint with separated signals rejects it. Explains the gap: Can dual-specificity Tregs fail despite retained suppressive function when donor presenters disappear, recipient APCs acquire intact donor HLA, and newly introduced pathogen-memory clones encounter the graft? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Donor vesicles may protect transplanted tissue by drawing antibodies away from it IH_Q_L3_M_G1_2_01 · #30 In recipients with functional pre-existing donor-reactive antibody, retained donor vesicles may protect tissue while sustaining sensitization. Removing them should immediately shift antibody onto viable donor targets and cause injury before antibody production or immune memory increases. Explains the gap: Could removing donor vesicles destabilize acceptance, and does reversing vesicle exposure relative to inflammatory activation switch the same recipient from regulatory maintenance to persistent donor-specific memory? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | extracellular antibody partitioning | Awaiting review Awaiting a curator |
| Donor vesicles can limit immune memory by making recipient antigen presenters targets for killing IH_Q_L3_M_G1_2_02 · #31 In an antibody-free recipient antigen-presenting-cell–T-cell system, early donor vesicle exposure would limit donor-specific immune memory by killing the cells that sustain it. Protection from killing or replacement of presenters would erase this benefit before donor-target injury. Explains the gap: Could removing donor vesicles destabilize acceptance, and does reversing vesicle exposure relative to inflammatory activation switch the same recipient from regulatory maintenance to persistent donor-specific memory? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | cytolytic presenter ecology | Awaiting review Awaiting a curator |
| Mixed preparations make donor vesicles appear to switch from protection to immune memory IH_Q_L3_M_G1_2_03 · #32 The hypothesis attributes immediate immune suppression to material mixed with donor vesicles, and delayed donor-specific immune memory to retained donor antigen. A persistent switch between these effects in purified vesicles across exposure orders would refute it. Explains the gap: Could removing donor vesicles destabilize acceptance, and does reversing vesicle exposure relative to inflammatory activation switch the same recipient from regulatory maintenance to persistent donor-specific memory? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | preparation component confounding | Awaiting review Awaiting a curator |
| Peptides released by graft injury prevent rejection by blocking donor-reactive receptors IH_Q_L3_M_G1_3_01 · #33 In graft–recipient immune cocultures, naturally released donor peptides are proposed to restrain graft killing while preserving unrelated antimicrobial responses. Removing and restoring this fraction would test whether recovery requires receptor antagonism at unchanged activating antigen display. Explains the gap: Does the small-gain stability criterion predict whether a minor graft injury resolves or becomes self-sustaining alloimmunity, and can donor-selective feedback reduction restore stability while preserving antimicrobial killing and wound repair? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | antigen specific receptor antagonism | Awaiting review Awaiting a curator |
| Sustained immune attack on a graft requires injury to keep renewing donor antigens IH_Q_L3_M_G1_3_02 · #34 In connected perfused donor-tissue and recipient-immune compartments, reducing injury-generated donor antigens could restore recovery while preserving antimicrobial killing. Independently estimated feedback bounds predict recovery; interrupting and replaying antigen input tests the proposed loop. Explains the gap: Does the small-gain stability criterion predict whether a minor graft injury resolves or becomes self-sustaining alloimmunity, and can donor-selective feedback reduction restore stability while preserving antimicrobial killing and wound repair? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | injury antigen feedback amplification | Awaiting review Awaiting a curator |
| Restoring immune recognition proteins helps graft cells repair through insulin signaling IH_Q_L3_M_G1_4_01 · #35 In insulin-responsive differentiated graft tissue, restoring classical human leukocyte antigen class I (HLA-I) would improve repair through its association with the insulin receptor. Disrupting that association would remove the benefit despite preserved immune recognition. Explains the gap: Could restoring classical HLA-I reduce total graft injury more than further antigen concealment when differentiated donor cells undergo repair and encounter renewed NK and T-cell repertoires? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Restoring immune recognition markers protects grafts by redirecting immune attacks IH_Q_L3_M_G1_4_02 · #36 In human donor tissue with recipient natural killer (NK) cells and donor-reactive T cells, restoring classical human leukocyte antigen class I (HLA-I) redirects NK killing toward T cells. Protection from later T-cell injury disappears when NK attacks on T cells are selectively blocked. Explains the gap: Could restoring classical HLA-I reduce total graft injury more than further antigen concealment when differentiated donor cells undergo repair and encounter renewed NK and T-cell repertoires? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | effector intraguild predation | Awaiting review Awaiting a curator |
| Donor-reactive tissue memory can protect grafts by containing microbes IH_Q_L3_M_G1_5_01 · #37 In some colonizable grafts, donor-reactive conventional tissue-memory T cells may contain microbes and prevent recurrent injury. Removing these cells would increase microbial growth before injury; restoring their antimicrobial activity without their cell-killing activity would prevent recurrence. Explains the gap: When blood donor assays remain negative, does recurrent graft injury arise from microbial memory, donor-specific tissue memory, or their sequential coupling, and which selective interruption abolishes recurrence after apparent recovery? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | alloantigen triggered antimicrobial protection | Awaiting review Awaiting a curator |
| Random bursts of microbial material drive recurrent graft injury IH_Q_L3_M_G1_5_02 · #38 In a controlled graft–immune-cell system, brief bursts of microbial antigen could explain recurrent injury after apparent recovery. Compare pulsed and continuous delivery at equal cumulative exposure: recurrence should depend on microbial-reactive cells or the source, not donor-reactive cells. Explains the gap: When blood donor assays remain negative, does recurrent graft injury arise from microbial memory, donor-specific tissue memory, or their sequential coupling, and which selective interruption abolishes recurrence after apparent recovery? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | stochastic microbial antigen bursting | Awaiting review Awaiting a curator |
| Repeated graft injury comes from new microbial exposures after clearance IH_Q_L3_M_G1_5_03 · #39 In a controlled colonizable-graft model, recurrence reflects new microbial exposure after clearance. Excluding exposure prevents injury despite retained immune memory; re-exposure restores injury linked to the introduced microbial barcode, while removing donor-reactive cells leaves recurrence unchanged. Explains the gap: When blood donor assays remain negative, does recurrent graft injury arise from microbial memory, donor-specific tissue memory, or their sequential coupling, and which selective interruption abolishes recurrence after apparent recovery? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | external reinoculation event misattribution | Awaiting review Awaiting a curator |
| Open donor immune-display proteins can permit selective killing of abnormal donor cells IH_Q_L3_M_G4_2_01 · #40 In some donor–recipient pairs, recipient alpha-beta T-cell receptors recognize open donor human leukocyte antigen class I independently of peptide identity. Selective abnormal-cell killing that survives peptide replacement but disappears when the open shape is masked would support this route. Explains the gap: Can restoring donor class-I presentation improve infected-cell clearance without increasing healthy-donor injury, or does recipient HLA restriction make donor-identity-based acceptance fundamentally incompatible with protective recognition in some donor–recipient pairs? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | conformational target identity | Awaiting review Awaiting a curator |
| A signaling threshold sets when immune cells kill abnormal donor cells and spare healthy ones IH_Q_L3_M_G4_2_02 · #41 In recipient CD8 cells, selective donor-cell killing requires recognition of an abnormal donor peptide–HLA complex and formation of LAT signaling condensates. With recognition held constant, changing LAT interactions would shift killing; without recognition, lowering the threshold would not rescue clearance. Explains the gap: Can restoring donor class-I presentation improve infected-cell clearance without increasing healthy-donor injury, or does recipient HLA restriction make donor-identity-based acceptance fundamentally incompatible with protective recognition in some donor–recipient pairs? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | intracellular phase transition | Awaiting review Awaiting a curator |
| Transplant acceptance converts antibody-producing cells into cells that respond again on recall IH_Q_L3_M_G4_3_01 · #42 In an accepted-allograft animal model with a normal early vaccine response, protection would fade as mature plasma cells stop secreting antibodies but survive. Tracking the same cells must show conversion into recall-capable B cells that multiply and produce protective antibody again. Explains the gap: When early vaccine responses remain normal after acceptance, does later protection fail because memory was never durably generated, survival support was lost, or protective clones were selectively silenced for donor cross-reactivity? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | differentiated lineage reversal | Awaiting review Awaiting a curator |
| Antibodies that block vaccine targets prevent lasting immune protection IH_Q_L3_M_G4_3_02 · #43 In susceptible recipients with accepted transplants, early antibodies may block vaccine targets before lasting antibody-producing cells and immune memory form. Restoring access to the same target during memory formation should restore durable-cell output. Explains the gap: When early vaccine responses remain normal after acceptance, does later protection fail because memory was never durably generated, survival support was lost, or protective clones were selectively silenced for donor cross-reactivity? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | extracellular epitope occlusion | Awaiting review Awaiting a curator |
| Accelerated breakdown of a survival protein destroys established vaccine antibody-producing cells IH_Q_L3_M_G4_3_03 · #44 Vaccine-specific plasma cells form normally but later die because the survival protein MCL-1 breaks down too quickly. Preserving MCL-1 in derived cultures should rescue cell survival and antibody secretion; extra support outside the cells alone should fail. Explains the gap: When early vaccine responses remain normal after acceptance, does later protection fail because memory was never durably generated, survival support was lost, or protective clones were selectively silenced for donor cross-reactivity? Proxy gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | intrinsic apoptotic proteostasis | Awaiting review Awaiting a curator |
| Donor-reactive regulatory T cells protect infected donor cells from immune killing IH_Q_L3_M_G4_1_01 · #45 In human donor organoids, regulatory T cells may protect infected cells despite successful delivery of immune killing machinery. Restoring killing by disrupting epidermal growth factor receptor signaling only in donor targets, without increasing immune activation, would distinguish this mechanism. Explains the gap: Does donor-reactive Treg protection fail its specificity claim when unrelated microbial antigens share the same presenting cells, suppressing protective killing despite preserved responses to those antigens elsewhere? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | target intrinsic death resistance | Awaiting review Awaiting a curator |
| Donor-directed immune restraint lets microbes persist without their own immune-disabling factors IH_Q_L3_M_G4_1_02 · #46 In an ex vivo graft–antigen-presenting-cell–immune-cell system, donor-reactive regulatory T cells could replace microbial immune interference. A shift in the producer-frequency threshold for containment, without donor-target resistance to killing, would distinguish this mechanism. Explains the gap: Does donor-reactive Treg protection fail its specificity claim when unrelated microbial antigens share the same presenting cells, suppressing protective killing despite preserved responses to those antigens elsewhere? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | pathogen public goods substitution | Awaiting review Awaiting a curator |
| Suppressed immune-cell division may leave antimicrobial protection intact IH_Q_L3_M_G4_1_03 · #47 In shared-presentation assays, reduced responder division may coexist with preserved antimicrobial killing. The claim holds only if microbial clearance, infected-target killing and control of a subsequent independent challenge remain noninferior to separate-presentation controls. Explains the gap: Does donor-reactive Treg protection fail its specificity claim when unrelated microbial antigens share the same presenting cells, suppressing protective killing despite preserved responses to those antigens elsewhere? Adversarial gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | proliferation protection surrogate mismatch | Awaiting review Awaiting a curator |
| Microbial enzymes can be necessary to end inflammation in barrier grafts IH_Q_L3_M_G4_4_01 · #48 In some colonized barrier grafts, bacterial enzymes may supply a necessary inflammation-ending peptide by cutting the host protein thrombin. Matched graft cultures, replacement of the peptide after clearance, and cleavage-resistant thrombin would test whether resolution requires this microbial contribution. Explains the gap: Can delaying repair signaling until microbial control is established prevent persistent graft inflammation, and does a measured feedback loop gain predict when closely spaced injuries defeat that timing rule? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | microbial catalysis of host resolution | Awaiting review Awaiting a curator |
| Switching between stable defense and repair programs can prolong graft injury IH_Q_L3_M_G4_4_02 · #49 In perfused barrier grafts, switching between defense and repair could amplify injury even when each program alone supports recovery. Response matrices estimated from small perturbations must predict unseen injury schedules and identify a schedule that restores recovery at matched injury and repair exposure. Explains the gap: Can delaying repair signaling until microbial control is established prevent persistent graft inflammation, and does a measured feedback loop gain predict when closely spaced injuries defeat that timing rule? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Information and sensing | Awaiting review Awaiting a curator |
| Repair prolongs graft inflammation by passing live microbes between immune cells IH_Q_L3_M_G4_4_03 · #50 In human phagocyte cocultures and epithelial graft models, repair would sustain infection by moving live microbes from dying immune cells into macrophages. Live transfer before infection rebounds, and loss of rebound when intracellular cargo is eliminated, would distinguish this mechanism. Explains the gap: Can delaying repair signaling until microbial control is established prevent persistent graft inflammation, and does a measured feedback loop gain predict when closely spaced injuries defeat that timing rule? Clash gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | efferocytic pathogen relay | Awaiting review Awaiting a curator |
| Donor immune-cell particles sustain recipient injury after donor cells are removed IH_Q_L3_M_G4_5_01 · #51 In human tissue cultures, donor-derived cytotoxic particles could sustain recipient injury after donor-cell removal. Injury that disappears with particle depletion, returns with particle add-back despite human leukocyte antigen (HLA) blockade, and fades across transfers would distinguish this mechanism. Explains the gap: Do persistent donor-resident lymphocytes provide indispensable early graft defense, or does infection-driven recipient-tissue recognition convert that apparent benefit into self-sustaining host injury before circulating assays detect it? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | extracellular cytotoxic execution | Awaiting review Awaiting a curator |
| Infection alters cell contact spacing so donor immune cells keep killing recipient tissue IH_Q_L3_M_G4_5_02 · #52 In donor-resident lymphocytes and recipient tissue, infection-altered contact spacing permits killing that persists after microbial clearance. Changing that spacing must reduce recipient killing while preserving an adequate response to strong microbial targets. Explains the gap: Do persistent donor-resident lymphocytes provide indispensable early graft defense, or does infection-driven recipient-tissue recognition convert that apparent benefit into self-sustaining host injury before circulating assays detect it? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | Interfaces and barriers | Awaiting review Awaiting a curator |
| Donor immune cells can be essential because they recognize infected donor tissue IH_Q_L3_M_G4_5_03 · #53 In HLA-typed tissue cultures, donor-resident lymphocytes may provide essential defense without persistent recipient injury. Rescue by recipient cells carrying a donor-HLA-restricted microbial TCR would identify recognition compatibility as the barrier to replacement. Explains the gap: Do persistent donor-resident lymphocytes provide indispensable early graft defense, or does infection-driven recipient-tissue recognition convert that apparent benefit into self-sustaining host injury before circulating assays detect it? Fragile gap | How to avoid immunogenity of the transplanted tissues completely without suppressing immune system? | 2026-09-20 16:19 | antigen restriction compatibility | Awaiting review Awaiting a curator |