Secretin is an endocrine hormone that stimulates the secretion of bicarbonate-rich pancreatic fluids. Canine secretin can regulates gastric chief cell function and paracellular permeability in canine gastric monolayers by a Src kinase-dependent pathway.
Neuromedin N is a neuropeptide derived from the same precursor polypeptide as neurotensin, and with similar but subtly distinct expression and effects.
Defensin HNP-3 is a peptide secreted by human polymorphonuclear leukocytes (PMNs) that has antimicrobial properties. It induces lysis of mammalian cells when used at a concentration of 25 μg/mL. It also inhibits growth of E. faecalis (ED50 = 100 nM) and clinical isolates of P. aeruginosa (MIC90 = 4 μM). HNP-3 binds to recombinant HIV-1 envelope glycoprotein (gp120) and human CD4 (Kds = 52.8 and 34.9 nM, respectively). It also binds to recombinant, immobilized human surfactant protein D (SP-D; Kd = 55.7 nM) and inhibits focus formation in Madin-Darby canine kidney (MDCK) cells infected with influenza A virus (IAV).
Angiotensin (1-7) (ASP-ARG-VAL-TYR-ILE-HIS-PRO) 是肾素-血管紧张素系统中的内源性七肽。Angiotensin 1-7在心肌细胞中具有抗炎和抗纤维化活性,因此具有心脏保护作用。它能抑制血管紧张素转换酶和释放一氧化氮,是激肽诱导的血管舒张的局部协同调节剂。它阻断 Ang II 诱导的平滑肌细胞增殖和肥大,并显示对内皮的抗血管生成和生长抑制作用。它显示出抗炎活性。
Endogenous ligand for the canine KISS1 receptor (Kisspeptin receptor or GPR54). Stimulates section of luteinizing hormone, follicle stimulating hormone and estradiol in vivo.