HPG Axis Regulation
Kisspeptin is a primary regulator of GnRH pulsatility. Research has documented robust LH and FSH surges following kisspeptin administration in multiple rodent and primate model studies.
Overview
What is Kisspeptin?
Kisspeptin-10 is the shortest active fragment of the kisspeptin family of neuropeptides, encoded by the KISS1 gene. Research has established kisspeptin as a critical regulator of the hypothalamic-pituitary-gonadal (HPG) axis, with studied roles in reproductive endocrinology, GnRH pulse regulation, and gonadotropin secretion in animal models.
Kisspeptin (Kisspeptin-10) is supplied strictly as a reference material for in vitro and preclinical investigation. All characterization data described here is drawn from peer-reviewed literature and laboratory analysis; nothing herein constitutes a claim of clinical effect in humans.
Investigational Scope
Documented Research Areas
The following domains summarize directions explored across published studies and laboratory models. Each reflects observations reported in rodent models, in vitro systems, or the peer-reviewed record.
GnRH Pulse Modulation
Studies have examined kisspeptin's role as the master regulator of GnRH neuron activity, with research showing direct synaptic input to GnRH neurons in hypothalamic preparations.
Gonadotropin & Testosterone
In male rodent models, kisspeptin administration has been associated with acute increases in LH followed by downstream testosterone elevations, making it a subject of interest in reproductive endocrinology.
Energy Balance & Reproduction
Research has examined kisspeptin as an integrator of metabolic status and reproductive function, with studies showing sensitivity to leptin, insulin, and energy availability signals.
Proposed Mechanism
Mechanistic Pathway
Mechanistic steps below are hypothesized from in vitro assays and animal-model data reported in the literature. They describe biochemical interactions observed under controlled experimental conditions.
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1
GPR54 (KISS1R) Receptor Activation
Kisspeptin binds the GPR54 receptor (also called KISS1R) expressed on GnRH neurons, triggering depolarization and GnRH release into the hypothalamic-pituitary portal circulation.
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2
GnRH Pulse Generation
Research has established kisspeptin neurons in the arcuate nucleus as the primary GnRH pulse generator, with studies demonstrating that kisspeptin release directly entrains GnRH pulsatility.
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3
LH & FSH Stimulation
GnRH released downstream of kisspeptin signaling stimulates pituitary gonadotroph cells to secrete LH and FSH, which in turn regulate gonadal steroidogenesis in animal models.
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4
Metabolic Signal Integration
Kisspeptin neurons express receptors for leptin, ghrelin, and insulin, serving as a nexus between metabolic status and reproductive axis activity in neuroendocrine research models.
Technical Data
Molecular Specifications
| Amino Acid Sequence | Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH₂ |
|---|---|
| Molecular Weight | 1,302.5 g/mol |
| Molecular Formula | C₆₃H₈₃N₁₅O₁₃ |
| CAS Number | 374683-28-0 |
| Storage | −20°C long-term, 4°C short-term up to 4 weeks |
References
Selected Literature
The following peer-reviewed references informed the research summaries on this page. Citations are provided for scientific context only.
- Seminara SB, et al. (2003). The GPR54 gene as a regulator of puberty. New England Journal of Medicine, 349(17), 1614–1627.
- Gottsch ML, et al. (2004). A role for kisspeptins in the regulation of gonadotropin secretion in the mouse. Endocrinology, 145(9), 4073–4077.
- Oakley AE, et al. (2009). Kisspeptin signaling in the brain. Endocrine Reviews, 30(6), 713–743.
- Pinilla L, et al. (2012). Kisspeptins and reproduction: physiological roles and regulatory mechanisms. Physiological Reviews, 92(3), 1235–1316.
- Clarkson J & Herbison AE. (2006). Postnatal development of kisspeptin neurons in mouse hypothalamus. Endocrinology, 147(12), 5817–5825.
Research Disclaimer
This product is intended strictly for laboratory research purposes only. It is not a drug, food, cosmetic, or dietary supplement and is not intended to diagnose, treat, cure, or prevent any disease. It is not for human or animal consumption. All information presented is derived from published scientific literature and is provided for educational reference only. By purchasing, the buyer affirms they are a qualified researcher or institution and assume full responsibility for the safe and lawful handling of this material.