Overview
- The peer-reviewed paper published October 14, 2026 analyzed healthy ovarian tissue from 28 postmenopausal women and used diaPASEF mass spectrometry to quantify roughly 5,812 protein groups.
- Researchers distilled recurring changes into a 26-protein Buck Postmenopausal Ovary Molecular Signature (BuckPOMS) and validated extracellular markers including WNT4 and fibromodulin by immunohistochemistry.
- Proteomic patterns shift with age: ovaries from women in their 50s were enriched for RNA/DNA regulation and tissue-maintenance proteins while ovaries 70 and older showed increased lipid metabolism, innate immunity and inflammatory proteins.
- Normal-looking ovaries showed molecular overlap with senescence programs and with proteins previously linked to ovarian cancer, with the strongest cancer-associated signal appearing among women in their 60s, though the authors stress this is associative not diagnostic.
- The study’s small, cross-sectional sample and missing data on age at menopause and hormone therapy limit clinical conclusions, so authors call for larger, diverse longitudinal cohorts to test whether aging ovaries affect cancer risk or broader systemic aging and to guide any future clinical steps.