Gonadotropin Gene Targeting and Biological Implications

Overview

Journal Endocrine

Specialty Endocrinology

Date 2005 Jul 22

PMID 16034176

Citations 3

Authors

T Rajendra Kumar

Affiliations

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Abstract

Pituitary gonadotropins FSH and LH are heterodimeric glycoproteins consisting of a common alpha and a hormone-specific beta subunit that are non-covalently linked. These hormones orchestrate gonadal growth, differentiation, and function by regulating both steroid-ogenesis and gametogenesis. Advances in the past two decades in manipulating the mouse genome by site-specific mutagenesis have heralded a new dimension to our understanding of the biology of gonadotropins. Using these gene-targeting approaches, knockout mice lacking the hormone-specific gonadotropin subunits, and hence the functional dimeric hormones, have been generated. These individual gonadotropin-deficient mice are useful to delineate the distinct in vivo biological roles of FSH and LH. These mice also serve as valuable genetic tools to study the signaling mechanisms within the gonads and help a better understanding of some forms of human infertility.

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