{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T20:35:17Z","timestamp":1791318917299,"version":"4.3.1"},"reference-count":31,"publisher":"The Endocrine Society","issue":"10","license":[{"start":{"date-parts":[[2024,8,19]],"date-time":"2024-08-19T00:00:00Z","timestamp":1724025600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institute of Health","doi-asserted-by":"publisher","award":["R01HD097202"],"award-info":[{"award-number":["R01HD097202"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,8,27]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Salt-inducible kinases (SIKs), a family of serine\/threonine kinases, were found to be critical determinants of female fertility. SIK2 silencing results in increased ovulatory response to gonadotropins. In contrast, SIK3 knockout results in infertility, gonadotropin insensitivity, and ovaries devoid of antral and preovulatory follicles. This study hypothesizes that SIK2 and SIK3 differentially regulate follicle growth and fertility via contrasting actions in the granulosa cells (GCs), the somatic cells of the follicle. Therefore, SIK2 or SIK3 GC-specific knockdown (SIK2GCKD and SIK3GCKD, respectively) mice were generated by crossing SIK floxed mice with Cyp19a1pII-Cre mice. Fertility studies revealed that pup accumulation over 6 months and the average litter size of SIK2GCKD mice were similar to controls, although in SIK3GCKD mice were significantly lower compared to controls. Compared to controls, gonadotropin stimulation of prepubertal SIK2GCKD mice resulted in significantly higher serum estradiol levels, whereas SIK3GCKD mice produced significantly less estradiol. Cyp11a1, Cyp19a1, and StAR were significantly increased in the GCs of gonadotropin-stimulated SIK2GCKD mice. However, Cyp11a1 and StAR remained significantly lower than controls in SIK3GCKD mice. Interestingly, Cyp19a1 stimulation in SIK3GCKD was not statistically different compared to controls. Superovulation resulted in SIK2GCKD mice ovulating significantly more oocytes, whereas SIK3GCKD mice ovulated significantly fewer oocytes than controls. Remarkably, SIK3GCKD superovulated ovaries contained significantly more preantral follicles than controls. SIK3GCKD ovaries contained significantly more apoptotic cells and fewer proliferating cells than controls. These data point to the differential regulation of GC function and follicle development by SIK2 and SIK3 and supports the therapeutic potential of targeting these kinases for treating infertility or developing new contraceptives.<\/jats:p>","DOI":"10.1210\/endocr\/bqae107","type":"journal-article","created":{"date-parts":[[2024,8,15]],"date-time":"2024-08-15T22:37:38Z","timestamp":1723761458000},"source":"Crossref","is-referenced-by-count":2,"title":["SIK2 and SIK3 Differentially Regulate Mouse Granulosa Cell Response to Exogenous Gonadotropins In Vivo"],"prefix":"10.1210","volume":"165","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4838-9807","authenticated-orcid":false,"given":"Emily T","family":"Hayes","sequence":"first","affiliation":[{"name":"Department of Physiology and Biophysics, School of Medicine, University of Illinois at Chicago , Chicago, IL 60612 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