Amyloid fibers help sperm deliver RNA to mouse embryos (opens in a new tab)

news-medical.net · 2026-10-27

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Amyloid fibers help sperm deliver RNA to mouse embryos

news-medical.net · 2026-10-27

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Also referencedpresented as the new finding
Amyloid-mediated RNA uptake by sperm for embryonic delivery
Where the story links (opens in a new tab)
Also referencedpresented as the new finding
Amyloid-mediated RNA uptake by sperm for embryonic delivery
Where the story links (opens in a new tab)

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Claim 1 of 4Not checkedA recent study published in Molecular Cell suggests that amyloid fibrils in seminal fluid may facilitate the uptake of extracellular RNA by mammalian sperm and its delivery to the zygote during fertilization.View evidenceHide evidence

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Claim 2 of 4Not checkedExperiments using synthetic fibrils also demonstrated RNA translation in mouse embryos, suggesting a possible approach to nonviral RNA delivery during fertilization.View evidenceHide evidence

As statedat least tenfold higher EGFP protein signal in embryos with fibrils than without them

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Claim 3 of 4Not checkedIn mouse IVF experiments, PAP fibrils increased delivery of isotopically labeled HIV-2 TAR RNA to two-cell-stage embryos.View evidenceHide evidence

As statedincreased delivery to two-cell-stage embryos

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Claim 4 of 4Not checkedThe authors cautioned that transfer of naturally occurring seminal RNA, gene editing, and disease prevention were not tested, and that the therapeutic application remains speculative.View evidenceHide evidence

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