Ovarian small RNAs suppress retroelements

Could ovarian support cells explain survival after ovarian grafts via messages to recipient cells? The proposal is that short regulatory RNAs, molecules controlling genetic material, leave donor cells and load into Argonaute, an RNA-guided protein complex that recognizes matching sequences. Their target is a retroelement, a mobile sequence that copies itself through an RNA intermediate. The test would remove one donor RNA while preserving graft viability, steroid output, cell death and protein secretion. Loss of retroelement suppression and survival, then restoration with a sequence-matched RNA, would support the model. A resistant-target reporter should escape the effect. If apoptotic donor cells reproduced the benefit, clearance of dying cells would better explain it.