Kisspeptin-X, Etiam notum est Metastin, est in hypothalamus et ludit magni momenti munus in hormone signalling in pubertatem et reproduction. Kisspeptin-X est efficax vasoconstrictor et angiogenesis inhibitor.kisspepin-X inhibits tumor metastasis per eius receptor GPR54.The Kisspeptin-X-GPR54 Ratio Plays An Maximus Partes in Embryoni Ratio Develops BMP2 Differentiation per NFATC4-Mediated BMP2.