Defective HIRA driven chromatin maintenance underlies age related decline in oocyte quality
Yuki Hatanaka, Yuko Takeda, Max Hannam, Erin Cutts, Buhe Nashun, Marian H. Dore, Ben Moyon, George Young, Pierre‐Olivier Estève, Sriharsa Pradhan, Mary Herbert, Petra Hájková
This study identifies HIRA SUMOylation as a cause of chromatin instability in aging oocytes, leading to reduced fertility, and shows similar defects in human oocytes.
bioRxiv · Sep 29, 2026 · PreprintDevelopmental Biology