{
  "id": 14802210,
  "title": "Proteomics Reveals Ovarian Remodeling Decades After Menopause",
  "url": "https://urgent.news/2026/10/15/proteomics-reveals-ovarian-remodeling-decades-after-menopause",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-10-15T22:16:35.000Z",
  "source": {
    "name": "GEN Biotechnology",
    "slug": "gen-biotechnology",
    "url": "https://www.genengnews.com/topics/omics/proteomics-reveals-ovarian-remodeling-decades-after-menopause/"
  },
  "original_language": "en",
  "account": "For decades, the postmenopausal ovary has been regarded as a dormant organ—the fibrotic remnant that ceases egg production and largely becomes inactive. However, a comprehensive study utilizing high-resolution proteomics has revealed that the ovary continues to undergo structural, metabolic, and immune remodeling for several decades after the conclusion of reproduction.\n\nResearchers from Northwestern University and the Buck Institute for Research on Aging conducted the study, analyzing healthy ovarian tissue from 28 postmenopausal women aged between 50 and 75. Published in Aging Cell, the paper, titled “The Human Ovary Exhibits Dynamic Molecular Remodeling in the Decades Post-Menopause,” challenges the common assumption that the ovary remains largely idle post-menopause.\n\nCo-corresponding author Dr. Francesca Duncan, an associate professor of reproductive science at Northwestern University Feinberg School of Medicine, emphasizes that most people assume the ovaries are merely dormant, similar to the appendix. However, this study demonstrates the ovary's ongoing activity, which sets this research apart from previous investigations focused solely on hormone levels.\n\nThe team employed data-independent acquisition mass spectrometry coupled with parallel accumulation–serial fragmentation (diaPASEF) to systematically capture peptide signals across samples. This approach enabled them to quantify 5,812 protein groups, which were then subjected to differential-abundance testing, multivariate modeling, continuous-age regression, and pathway analyses. The analyses pointed to a transition from cellular maintenance to active remodeling, with ovaries from women in their 50s exhibiting higher levels of proteins involved in RNA processing, gene regulation, proteostasis, and tissue structure. Conversely, ovaries belonging to women aged 70 and above showed stronger indications of lipid metabolism and innate immunity.\n\nThe researchers consolidated these recurring signals into the Buck Postmenopausal Ovary Molecular Signature (BuckPOMS), a 26-protein consensus signature marked by a loss of structural and epithelial-associated programs and the gain of extracellular matrix remodeling, inflammatory signaling, and complement activation. They also validated two extracellular proteins, WNT4 and fibromodulin, using immunohistochemistry.\n\nDr. Birgit Schilling, an author of the study and professor at the Buck Institute, notes that the findings reveal the ovary is not merely a reproductive organ but also influences other organs such as the brain and bones. She further highlights the connection between the postmenopausal ovarian aging and various systemic aging processes, including bone health, brain function, and cardiovascular health. The study contributes an essential reference map of continued ovarian aging during the decades post-menopause, a gap that has previously been dominated by studies focusing on fertility loss, menopausal transition, and comparisons across the entire lifespan.\n\nInterestingly, histologically normal ovaries showed overlap with senescence-associated programs and proteins commonly associated with ovarian cancer, particularly among women in their 60s. However, the authors stress that these findings do not indicate malignancy; rather, they indicate a shared inflammatory and matrix-remodeling biology between healthy aging and cancer. This distinction is crucial as women routinely live for decades following menopause, and researchers strive to understand how the ovary may impact bone, brain, cardiovascular, and broader systemic aging.\n\nThe study suggests that the ongoing molecular remodeling in the postmenopausal ovary challenges the notion that the ovary is an innocent bystander during the post-reproductive period. Instead, it implies a potentially more active role in systemic aging and chronic disease risk in women. Future prospective studies should incorporate documented age at menopause, hormone-therapy history, larger and more diverse cohorts, and longitudinal health outcomes to differentiate chronological aging from time since menopause and treatment effects. Ultimately, the study raises important questions about the ovary's potential benefits or harm to women as they age.",
  "summary": "5,812 protein groups were quantified in postmenopausal ovaries, uncovering molecular shifts associated with inflammation, immunity, and extracellular matrix remodeling. The post Proteomics Reveals Ovarian Remodeling Decades After Menopause appeared first on GEN - Genetic Engineering and Biotechnology News .",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}