期刊
DEVELOPMENT
卷 137, 期 1, 页码 151-157出版社
COMPANY OF BIOLOGISTS LTD
DOI: 10.1242/dev.040659
关键词
Gpr48; ER alpha (Esr1); Creb; Epididymis; Infertility; Mouse
资金
- National Nature Science Foundation [30890043, 30725037]
- Shanghai Education Committee [Y0204, 09ZZ118]
The epididymis and efferent ducts play major roles in sperm maturation, transport, concentration and storage by reabsorbing water, ions and proteins produced from seminiferous tubules. Gpr48-null male mice demonstrate reproductive tract defects and infertility. In the present study, we found that estrogen receptor alpha (ER alpha) was dramatically reduced in the epididymis and efferent ducts in Gpr48-null male mice. We further revealed that ER alpha could be upregulated by Gpr48 activation via the cAMP/PKA signaling pathway. Moreover, we identified a cAMP responsive element (Cre) motif located at -1307 to -1300 bp in the ER alpha promoter that is able to interact with Cre binding protein (Creb). In conclusion, Gpr48 participates in the development of the male epididymis and efferent ducts through regulation of ER alpha expression via the cAMP/PKA signaling pathway.
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