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Mechanism of Action
Kisspeptin is a family of peptides encoded by the KISS1 gene that bind GPR54 on GnRH neurons. Kisspeptin-GPR54 signaling serves as the master switch for the HPG axis, controlling puberty onset, reproductive cyclicity, and fertility. Originally identified as a metastasis suppressor gene product.
Key Research Findings
- Loss-of-function GPR54 mutations cause hypogonadotropic hypogonadism, confirming essential HPG role
- Exogenous kisspeptin-54 potently stimulated LH, FSH, and testosterone in first human study
- Successfully triggered oocyte maturation in IVF as safer alternative to hCG, virtually eliminating OHSS
Peer-Reviewed Studies (4)
de Roux N, Genin E, et al.
Proceedings of the National Academy of Sciences (2003)
Identified GPR54 loss-of-function mutations as cause of hypogonadotropic hypogonadism
Seminara SB, Messager S, et al.
New England Journal of Medicine (2003)
GPR54 inactivating mutations cause hypogonadotropic hypogonadism; GPR54-knockout mice fail to undergo puberty
Dhillo WS, Chaudhri OB, et al.
Journal of Clinical Endocrinology and Metabolism (2005)
First human demonstration that kisspeptin-54 potently stimulated LH, FSH, and testosterone
Jayasena CN, Abbara A, et al.
Journal of Clinical Investigation (2014)
Kisspeptin-54 successfully triggered oocyte maturation in IVF without OHSS
Research Disclaimer: The studies referenced above are from publicly available peer-reviewed literature. Pepta Labs products are sold strictly for research purposes. They are not intended for human consumption, therapeutic use, or as dietary supplements. All information is provided for educational and research reference only.