pacap

Pituitary adenylate cyclase-activating peptide (PACAP) (6-27) is a PACAP receptor antagonist with IC50 values of 1,500, 600, and 300 nM, respectively, for rat PAC1, rat VPAC1, and human VPAC2 recombinant receptors expressed in CHO cells. It binds to PACAP receptors on SH-SY5Y and SK-N-MC human neuroblastoma and T47D human breast cancer cells (IC50s = 24.5, 106, and 105 nM, respectively) and inhibits cAMP accumulation induced by PACAP (1-38) (Kis = 457, 102, and 283 nM, respectively, in SH-SY5Y, SK-N-MC, and T47D cells). In vivo, in newborn pigs, PACAP (6-27) (10 μM) inhibits vasodilation of pial arterioles induced by PACAP (1-27) and PACAP (1-38) . It also inhibits PACAP (1-27)-stimulated increases in plasma insulin and glucagon levels and pancreatic venous blood flow in dogs when administered locally to the pancreas at a dose of 500 μg.

PACAP-related peptide (PRP) is an endogenous 29-amino acid peptide that belongs to the secretin/glucagon superfamily of peptides, which includes secretin , glucagon , glucagon-like peptide-1 , GLP-2 , and pituitary adenylate cyclase-activating polypeptide . It is expressed in normal human pancreas and adrenal gland tissue and in some tumors that produce vasoactive intestinal peptide (VIP). PRP (1-29) is secreted by CHO-K1 cells that express human recombinant preproPACAP.

PACAP (1-38) free acid TFA, an endogenous neuropeptide, effectively enhances antral motility and somatostatin secretion, while concurrently suppressing gastrin secretion and promoting the release of vasoactive intestinal polypeptide, gastrin-releasing peptide, and substance P. Additionally, it amplifies N-methyl-D-aspartate receptor function and brain-derived neurotrophic factor expression via RACK1 [1] [2].

PACAP (1-38) free acid is a deamidated PACAP (1-38) derived from humans, sheep, and rats. PACAP (1-38) free acid can activate the human PAC1 receptor and promote cyclic adenosine monophosphate synthesis in NS‑1 neuroendocrine cells and non-neuroendocrine HEK293 cells.

[Arg-15,-20,-21, Leu17]-PACAP-Gly-Lys-Arg-NH2 (BM-PACAP) is a synthetic analogue of PACAP 1-27 that exhibits a relaxant effect [1].

Anti-PACAP38 Antibody represents a highly specialized monoclonal antibody specifically engineered to target the human pituitary adenylate cyclase-activating polypeptide 38 isoform with exceptional binding affinity and selectivity, effectively facilitating the measurable neutralization of ligand-mediated signaling within the GPCR/G Protein pathway to evaluate its functional role in neurovascular regulation during strictly monitored laboratory observation periods and functional cyclic AMP accumulation assays to ensure high experimental sensitivity.

PACAP (1-38), human, ovine, rat TFA is an endogenous neuropeptide and a high-affinity agonist for the PAC1 receptor. This 38-amino acid peptide binds to the PAC1 receptor to activate adenylate cyclase, inducing an increase in intracellular cAMP levels and triggering downstream signaling. Research demonstrates that C-terminal amidation of PACAP (1-38), human, ovine, rat TFA is dispensable for its biological activity at the PAC1 receptor, with the non-amidated form retaining full agonistic potency. It plays crucial roles in neuroprotection, regulation of insulin secretion, and vasodilation.

PACAP (1-27), human, ovine, rat TFA (PACAP 1-27 TFA), an N-terminal fragment of PACAP-38, is an effective PACAP receptor antagonist with IC50 values of 3 nM for rat PAC1, 2 nM for rat VPAC1, and 5 nM for human VPAC2.

PACAP (1-27) (the N-terminal fragment of PACAP-38) is a novel neuropeptides originally isolated from bovine hypothalamus, also found in humans and rats.

PACAP (1-27), human, ovine, rat acetate (PACAP 1-27 acetate) is a novel neuropeptides originally isolated from bovine hypothalamus, also found in humans and rats.

PACAP (6-38), human, ovine, rat TFA is a potent PACAP receptor antagonist with IC50 values of 30 nM, 600 nM, and 40 nM for the PACAP type I receptor, PACAP type II receptor VIP1, and PACAP type II receptor VIP2, respectively.

PACAP-38 (31-38), human, mouse, rat acetate is a peptide fragment corresponding to amino acids 31–38 at the C-terminus of PACAP (1–38). It exhibits extremely weak binding affinity for PACAP receptors and lacks agonist activity.

PACAP-38 (16-38), human, mouse, rat, exhibits potent, efficacious, and sustained stimulatory effects on sympathetic neuronal NPY and catecholamine production.

PACAP (6-38), human, ovine, rat, is a potent and selective antagonist of PACAP 38, outperforming PACAP (6-27) in inhibiting PACAP-27-stimulated pituitary adenylate cyclase.

PACAP (6-38), human, ovine, rat acetate is a potent PACAP receptor antagonist with IC50s of 30, 600, and 40 nM for PACAP type I receptor, PACAP type II receptor VIP1, and PACAP type II receptor VIP2, respectively.

PACAP-Related Peptide (PRP), human, a 29-amino acid region of the PACAP precursor protein, is synthesized in sufficient quantities for biological and structural studies.

PACAP 1-38 acetate is a pituitary adenylate cyclase activating polypeptide (PACAP) analogue. PACAP 1-38 acetate binds to PACAP type I receptor(IC50 = 4 nM) and PACAP type II VIP2 receptor(IC50 = 1 nM) but not to PACAP type II, VIP1 receptor.

PACAP (6-27) (human, ovine, rat) is an antagonist for the PACAP receptor, inhibiting the catecholamine response of the canine adrenal gland to vasoactive intestinal peptide (VIP), making it a valuable compound for research into cardiovascular and neurological disorders [1].

PACAP-38 (31-38), human, mouse, rat (TFA), exhibits potent, efficacious, and sustained stimulatory effects on sympathetic neurons.

PACAP-38 (31-38), [human, mouse, rat], exhibits potent, efficacious, and sustained stimulatory effects on sympathetic neuronal NPY and catecholamine production.

PACAP (1-38), human, ovine, rat (Pituitary Adenylate Cyclase Activating Polypeptide 38), is a neuropeptide comprising 38 amino acid residues.

PACAP-related peptide (PRP) is an endogenous 29-amino acid peptide that belongs to the secretin/glucagon superfamily of peptides, which includes secretin , glucagon , glucagon-like peptide-1 , GLP-2 , and pituitary adenylate cyclase-activating polypeptide . It is expressed in rat hypothalamus as well as within the nerves of the median eminence, the anterior pituitary, bed nucleus of the stria terminalis, cerebellum, cerebral cortex, and amygdala. PRP is also expressed in vaginal, uterine cervical, uterine horn, fallopian tube, and ovarian tissues from the rat female genital tract and is present in extracts of male testis tissue.

PA-8 is a small molecule receptor antagonist for PACAP Type I (PAC1) that is selective, effective, and orally active. PA-8 inhibits PacAP-induced CREB phosphorylation at PAC1- receptors, but does not inhibit VPAC1- or vpac2 receptors. PA-8 also inhibited PacAP-induced elevation of cAMP levels in vitro (IC50 = 2 nM) and PacAP-induced aversive response and mechanical atopic pain after intrathecal injection in vivo.

PAC1R antagonist 1 is an orally active PAC1 receptor antagonist that inhibits abnormal pain induced by pituitary adenylate cyclase-activating polypeptide (PACAP) and nerve damage, and may be used in the study of neoplasms and immune-related disorders.