Exceptional longevity of mammalian ovarian and oocyte macromolecules throughout the reproductive lifespan

• DOI: 10.7554/elife.93172.3
• Publication Date: 2024-10-31T11:26:14Z
• Authors: Ewa K Bomba-Warczak; Karen M Velez; Luhan T Zhou; Christelle Guille...; Seby Edassery; Matthew L Steinha...; Jeffrey N Savas; Francesca E Duncan
• Keywords: QH301-705.5; Macromolecular Substances; Science; Reproduction; Q; Ovary; Longevity; R; mass spectrometry imaging; Cell Biology; long-lived proteins; Mice; proteomics; reproductive aging; Oocytes; Medicine; Animals; Female; ovaries; Biology (General); oocyte

The mechanisms contributing to age-related deterioration of the female reproductive system are complex, however aberrant protein homeostasis is a major contributor. We elucidated exceptionally stable proteins, structures, and macromolecules that persist in mammalian ovaries gametes across lifespan. Ovaries exhibit localized structural cell-type-specific enrichment both follicular extrafollicular environments. Moreover, oocytes harbor panel long-lived including cytoskeletal, mitochondrial, oocyte-derived proteins. exceptional persistence these molecules suggest critical role lifelong maintenance age-dependent tissues.