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Activation of Orphan Receptors by the Hormone Relaxin

Hsu, Sheau Yu, Nakabayashi, Koji, Nishi, Shinya, Kumagai, Jin, Kudo, Masataka, Sherwood, O. David, Hsueh, Aaron J. W.·2002·Science

Abstract

Relaxin is a hormone important for the growth and remodeling of reproductive and other tissues during pregnancy. Although binding sites for relaxin are widely distributed, the nature of its receptor has been elusive. Here, we demonstrate that two orphan heterotrimeric guanine nucleotide binding protein (G protein)–coupled receptors, LGR7 and LGR8, are capable of mediating the action of relaxin through an adenosine 3′,5′-monophosphate (cAMP)–dependent pathway distinct from that of the structurally related insulin and insulin-like growth factor family ligand. Treatment of antepartum mice with the soluble ligand-binding region of LGR7 caused parturition delay. The wide and divergent distribution of the two relaxin receptors implicates their roles in reproductive, brain, renal, cardiovascular, and other functions.

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Metadata

Authors
Hsu, S. Y., Nakabayashi, K., Nishi, S., Kumagai, J., Kudo, M., Sherwood, O. D., & Hsueh, A. J. W.
Venue
Science
Published
2002-01-25
Volume
295
Issue
5555
Pages
671-674
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2083891358
Cited by
786
References
0
FWCI
77.97
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Activation of Orphan Receptors by the Hormone Relaxin. https://app.cochat.ai/papers/10.1126/science.1065654
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Hsu, S. Y., Nakabayashi, K., Nishi, S., Kumagai, J., Kudo, M., Sherwood, O. D., & Hsueh, A. J. W. (2002). Activation of Orphan Receptors by the Hormone Relaxin. Science. https://doi.org/10.1126/science.1065654

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.