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Kisspeptin-Neurokinin-Dynorphin Neuron (KNDy Neuron)

Target: KNDy Neuron
Molecular classification: Neuron, Neuroendocrine cell, Hypothalamic neuron

Overview

Kisspeptin-neurokinin-dynorphin (KNDy) neurons are a specialized population of neurons located primarily in the arcuate nucleus (ARC) of the hypothalamus. These neurons co-express kisspeptin, neurokinin B (NKB), and dynorphin A and play a central role in regulating reproductive hormone secretion by acting as the intrinsic "GnRH pulse generator," which controls the pulsatile release of gonadotropin-releasing hormone (GnRH).

Other names: KNDy cellsKisspeptin/Neurokinin B/Dynorphin NeuronARC KNDy neurons

Mechanism of action

KNDy neurons integrate stimulatory (NKB) and inhibitory (dynorphin) signals to generate pulsatile kisspeptin release, which in turn stimulates GnRH neurons.

Biological functions

Regulation of GnRH secretionRegulation of LH/FSH secretionGnRH pulse generationControl of puberty onsetRegulation of fertilityRegulation of menstrual/estrous cycles

Disease associations

Hypogonadotropic hypogonadismPubertal disordersInfertilityReproductive disorders

Safety considerations

Potential for off-target effects of drugs targeting KNDy neuron componentsComplexity of the KNDy neuron network may lead to unpredictable responses to pharmacological interventionsSexual dimorphism in KNDy neuron function needs to be considered during therapeutic developmentSpecies-specific differences in KNDy neuron distribution

Interacting drugs

Kisspeptin analogs

2 more in the full profile.

Biomarkers

Kisspeptin levelsNeurokinin B levelsDynorphin A levelsLH levelsFSH levelsGnRH levels

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