Kisspeptin-10 is the ten amino acid C-terminal fragment of kisspeptin-54, encoded by the KISS1 gene. It represents the minimal biologically active fragment that retains full affinity for the kisspeptin receptor (KISS1R/GPR54). Kisspeptin signaling through KISS1R in hypothalamic GnRH neurons is recognized as a critical gating mechanism for the hypothalamic-pituitary-gonadal (HPG) axis.
GnRH Neuron Activation Research
Preclinical and clinical research has established Kisspeptin-10 as a potent activator of GnRH neurons in the hypothalamus. Studies in rodent models have documented its effects on GnRH pulse generator activity and downstream pituitary LH and FSH secretion.
HPG Axis Regulation Research
Research has examined the role of kisspeptin signaling in pubertal onset, seasonal reproductive regulation, and sex steroid feedback to the HPG axis. Studies in KISS1R knockout animal models have established the critical requirement for kisspeptin signaling in reproductive function.
Reproductive Endocrinology Research Applications
Kisspeptin-10 has been investigated in clinical studies examining conditions including hypothalamic amenorrhea, polycystic ovary syndrome models, and male hypogonadotropic hypogonadism.
• Seminara SB et al. (2003). The GPR54 gene as a regulator of puberty. New England Journal of Medicine, 349(17), 1614–1627.
• Dhillo WS et al. (2005). Kisspeptin-54 stimulates the hypothalamic-pituitary gonadal axis in human males. Journal of Clinical Endocrinology & Metabolism, 90(12), 6609–6615.
