Substance P is an 11 amino acid neuropeptide member of the tachykinin peptide family and is found in high quantities in the CNS. It preferentially activates the neurokinin-1 receptor (NK1R).
Uses and applications
It is secreted by neurons, acts as a neurotransmitter and is involved in many biological processes such as nociception and inflammation. It is also essential in gut motility.
Substance P also stimulates and modulates cytokine release in various cell types.