Severe impairment of spermatogenesis in mice lacking the CREM gene - PubMed (original) (raw)

. 1996 Mar 14;380(6570):162-5.

doi: 10.1038/380162a0.

Affiliations

• PMID: 8600391
• DOI: 10.1038/380162a0

Severe impairment of spermatogenesis in mice lacking the CREM gene

J A Blendy et al. Nature. 1996.

Abstract

Spermatogenesis is a complex developmental process that occurs in several phases. A large number of genes have been identified that are expressed during spermatogenesis, but the biological significance of many of these is not yet known. We have used gene targeting to selectively eliminate the transcription factor CREM (cyclic AMP- responsive element modulator), which is thought to be important for mammalian spermatogenesis. Male mice deficient for all CREM proteins are sterile, as their developing spermatids fail to differentiate into sperm, and postmeiotic gene expression in the testis declines dramatically. The cessation of sperm development is not accompanied by decreases in the levels of follicle-stimulating hormone or testosterone. Our findings indicate that the CREM gene is essential for spermatogenesis, and mice deficient for this transcription factor could serve as a model system for the study of idiopathic infertility in men.

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