pancreatic β

Pancreatic Polypeptide (human) acetate is a C-terminally amidated 36 amino acid peptide, which acts as a neuropeptide Y (NPY) Y4/Y5 receptor agonist.

Pancreatic Polypeptide, rat acetate is an agonist of NPY receptor, with high affinity at NPYR4.

Pancreatic polypeptide, a peptide produced by the pancreas's endocrine PP cells, modulates pancreatic secretory functions and influences hepatic glycogen levels and gastrointestinal secretion [1].

Endogenous high affinity agonist for human NPY Y4 receptor (Ki = 0.056 nM). Believed to play an important role in the function of the gastrointestinal tract.

Agonist at Y4 neuropeptide Y receptors.

Pancreatic Polypeptide, rat is an agonist of NPY receptor, with high affinity at NPYR4. Pancreatic polypeptide (PP) is a 36-amino acid, C-terminally amidated peptide, and is a member of the PP-fold peptide family. It is produced and secreted by the PP cel

GLP-1(7-36), amide (MKC 253) is a peptide hormone released from intestinal L-cells upon nutrient consumption. It binds the GLP-1 receptor in the pancreas and displays various antidiabetic effects by potentiating glucose-induced secretion of insulin from pancreatic β-cells, increasing insulin expression.

HAEGTFTSDVS acetate is the first N-terminal 1-11 residues of GLP-1 which stimulates insulin secretion from pancreatic β-cells.

BDC2.5 Mimotope 1040-63 is a biologically active peptide employed in the investigation of type 1 diabetes (T1D), an autoimmune disease where T cells induce destruction of pancreatic islet β cells. This mimotope, originating from the TCR transgenic model (BDC2.5), facilitates the examination of antigen presentation mechanisms to islet autoantigen-specific T cells, contributing to the understanding of T cell-mediated beta-cell damage due to autoreactive T cell responses.

Sulfatides are endogenous sulfoglycolipids with various biological activities in the central and peripheral nervous systems, pancreas, and immune system. They are produced from the combination of ceramide and UDP-galactose in the endoplasmic reticulum followed by sulfation in the Golgi apparatus. The ceramide portion contains variable fatty acid chain lengths, which are tissue- and pathology-dependent. Sulfatides are primarily found in the myelin sheath of oligodendrocytes and Schwann cells, with smaller chain lengths predominant during development and longer chain lengths predominant in mature cells. They accumulate in the lysosome of patients with metachromatic leukodystrophy, a disorder characterized by arylsulfatase A deficiency. Sulfatides are also located in pancreatic β-cells and inhibit insulin release from isolated rat pancreatic islet cells, suggesting a potential role in diabetes. Sulfatides can induce inflammation in glia in vitro and certain sulfatides, such as C24:1 3'-sulfo-galactosylceramide, can induce an immune response in vitro in mouse splenocytes. Sulfatides (bovine) (sodium salt) is a mixture of isolated bovine sulfatides.

Potent insulinotropic hormone synthesized by duodenal K-cells. High affinity GIP receptor agonist (EC50 = 0.81 nM) that inhibits gastric acid secretion and stimulates pancreatic insulin release in response to glucose. Also affects lipid metabolism and dis

Kisspeptin-54 is a peptide ligand of the orphan G protein-coupled receptor GPR54 (Kis = 1.81 and 1.45 nM for rat and human receptors, respectively).1 It is a 54 amino acid peptide encoded by the metastasis suppressor gene KISS-1. Kisspeptin-54 induces calcium mobilization in CHO-K1 cells expressing rat and human receptors (EC50s = 1.39 and 5.47 nM, respectively). It also induces arachidonic acid release in CHO cells expressing rat and human GPR54 in a concentration-dependent manner. Kisspeptin-54 (10-1,000 nM) inhibits insulin secretion from isolated mouse pancreatic β-cells in the presence of 2.8 mM, but not 11.1 mM, glucose.2 Kisspeptin-54 (1-5 nmol, i.c.v.) increases serum levels of luteinizing hormone (LH) and follicular stimulating hormone (FSH) in mice, an effect which is reversed by the gonadotropin releasing hormone (GNRH) antagonist acycline.3References1. Kotani, M., Detheux, M., Vandenbogaerde, A.L., et al. The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54. J. Biol. Chem. 276(37), 34631-34636 (2001).2. Vikman, J., and Ahrén, B. Inhibitory effect of kisspeptins on insulin secretion from isolated mouse islets. Diabetes Obes. Metab. 11(Suppl 4), 197-201 (2009).3. Gottsch, M.L., Cunningham, M.J., Smith, J.T., et al. A role for kisspeptins in the regulation of gonadotropin secretion in the mouse. Endocrinology 145(9), 4073-4077 (2004). Kisspeptin-54 is a peptide ligand of the orphan G protein-coupled receptor GPR54 (Kis = 1.81 and 1.45 nM for rat and human receptors, respectively).1 It is a 54 amino acid peptide encoded by the metastasis suppressor gene KISS-1. Kisspeptin-54 induces calcium mobilization in CHO-K1 cells expressing rat and human receptors (EC50s = 1.39 and 5.47 nM, respectively). It also induces arachidonic acid release in CHO cells expressing rat and human GPR54 in a concentration-dependent manner. Kisspeptin-54 (10-1,000 nM) inhibits insulin secretion from isolated mouse pancreatic β-cells in the presence of 2.8 mM, but not 11.1 mM, glucose.2 Kisspeptin-54 (1-5 nmol, i.c.v.) increases serum levels of luteinizing hormone (LH) and follicular stimulating hormone (FSH) in mice, an effect which is reversed by the gonadotropin releasing hormone (GNRH) antagonist acycline.3 References1. Kotani, M., Detheux, M., Vandenbogaerde, A.L., et al. The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54. J. Biol. Chem. 276(37), 34631-34636 (2001).2. Vikman, J., and Ahrén, B. Inhibitory effect of kisspeptins on insulin secretion from isolated mouse islets. Diabetes Obes. Metab. 11(Suppl 4), 197-201 (2009).3. Gottsch, M.L., Cunningham, M.J., Smith, J.T., et al. A role for kisspeptins in the regulation of gonadotropin secretion in the mouse. Endocrinology 145(9), 4073-4077 (2004).

GIP (rat) (Glucose-dependent Insulinotropic Polypeptide), also known as Gastric Inhibitory Polypeptide, is a biologically active 42-amino acid peptide secreted by the K cells of the duodenum and jejunum following food consumption. It belongs to the incretin hormone peptide family, which includes GLP (Gastric-like Peptide), and it not only stimulates insulin release from pancreatic islet β-cells but also may encourage β-cell proliferation and survival. Additionally, recent research indicates GIP may have a role in lipid regulation and could contribute to the development of obesity.

Amylin (8-37), human, derived from human Amylin, possesses direct vasodilator effects in isolated mesenteric resistance arteries of rats. Human Amylin is a small pancreatic β-cell hormone that forms aggregates in the absence of insulin and is a key pathological feature of type II diabetes mellitus.

GIP, rat TFA (glucose-dependent insulinotropic polypeptide), a 42-amino acid peptide secreted by K cells in the duodenum and jejunum, promotes insulin release from pancreatic beta cells, supports beta cell proliferation, and enhances their survival. This rat-origin bioactive peptide, along with GLP (gastric-like peptide), belongs to the intestinal insulinotropic hormone family and is implicated in lipid homeostasis and potentially in the pathogenesis of obesity. Recent research suggests GIP's multifaceted role in these metabolic processes.

GIP receptor antagonist (IC50 = 2.6μM). Inhibits GIP-stimulated insulin release from pancreatic β cells in vitro. In ob/ob mice, blocks the effects of GIP on insulin release and plasma glucose levels. Also improves intraperitoneal glucose tolerance, insul

Endogenous truncated form of the incretin hormone GIP. More potent at stimulating glucose-dependent insulin secretion from rat pancreatic β-cells than GIP.

(Ser8)-GLP-1 (7-36) amide, human is a glucagon-like peptide-1 amide originating from glucagonogen, itself a cleavage product of the GLP-1 (1-36) amide peptide. This entero-insulinotropic hormone facilitates glucose-dependent insulin secretion from pancreatic β-cells and influences gastrointestinal motility and secretion [1].

Calcitonin Gene Related Peptide II is a potent, long-lasting vasodilator; activation of CGRP receptors on pancreatic β-cells increases plasma levels of pancreatic enzymes.

A-71915 (TFA) is a selective inhibitor of ANP receptor (atrial natriuretic peptide-receptor), induces apoptosis and decreases insulin secretion in RINm5F pancreatic β-cells.

Insulin bovine (Insulin from bovine pancreas) is a biologically derived two-chain polypeptide hormone, synthesized in vivo by pancreatic β cells. It is frequently utilized as a growth supplement in cell culture applications.

Amylin (8-37), rat is a truncated analog of native Amylin that selectively inhibits insulin-related glucose uptake and glycogen deposition in muscle tissue. Amylin is also known as islet amyloid precursor peptide (IAPP) and is co-secreted with insulin fro

Amylin (1-37) (human) (hIAPP (1-37)), a peptide hormone found in pancreatic beta-cell secretory granules, features an amidated C-terminus and a disulfide bond between cysteine residues 2 and 7 [1].

A-71915 (TFA) is a selective atrial natriuretic peptide-receptor (ANP receptor) inhibitor that promotes apoptosis and reduces insulin secretion in RINm5F pancreatic β-cells [1].

Urocortin III is a neuropeptide hormone and member of the corticotropin-releasing factor (CRF) family which includes mammalian CRF , urocortin , urocortin II , frog sauvagine, and piscine urotensin I.1 Human urocortin III shares 90, 40, 37, and 21% identity to mouse urocortin III , mouse urocortin II , human urocortin , and mouse urocortin, respectively. Urocortin III selectively binds to type 2 CRF receptors (Kis = 21.7, 13.5, and >100 nM for rat CRF2α, rat CRF2β, and human CRF1, respectively). It stimulates cAMP production in CHO cells expressing rat CRF2α and mouse CRF2β (EC50s = 0.16 and 0.12 nM, respectively) as well as cultured anterior pituitary cells expressing endogenous CRF2β. Urocortin III is co-released with insulin to potentiate glucose-stimulated somatostatin release in vitro in human pancreatic β-cells.2 In vivo, urocortin III reduces food intake in a dose- and time-dependent manner in mice with a minimum effective dose (MED) of 0.3 nmol/animal.3 It increases swimming time in a forced swim test in mice, indicating antidepressant-like activity.4References1. Lewis, K., Li, C., Perrin, M.H., et al. Identification of urocortin III, an additional member of the corticotropin-releasing factor (CRF) family with high affinity for the CRF2 receptor. Proc. Natl. Acad. Sci. U.S.A. 98(13), 7570-7575 (2001).2. van der Meulen, T., Donaldson, C.J., Cáceres, E., et al. Urocortin3 mediates somatostatin-dependent negative feedback control of insulin secretion. Nat. Med. 21(7), 769-776 (2015).3. Pelleymounter, M.A., Joppa, M., Ling, N., et al. Behavioral and neuroendocrine effects of the selective CRF2 receptor agonists urocortin II and urocortin III. Peptides 25(4), 659-666 (2004).4. Tanaka, M., Kádár, K., Tóth, G., et al. Antidepressant-like effects of urocortin 3 fragments. Brain Res. Bull. 84(6), 414-418 (2011). Urocortin III is a neuropeptide hormone and member of the corticotropin-releasing factor (CRF) family which includes mammalian CRF , urocortin , urocortin II , frog sauvagine, and piscine urotensin I.1 Human urocortin III shares 90, 40, 37, and 21% identity to mouse urocortin III , mouse urocortin II , human urocortin , and mouse urocortin, respectively. Urocortin III selectively binds to type 2 CRF receptors (Kis = 21.7, 13.5, and >100 nM for rat CRF2α, rat CRF2β, and human CRF1, respectively). It stimulates cAMP production in CHO cells expressing rat CRF2α and mouse CRF2β (EC50s = 0.16 and 0.12 nM, respectively) as well as cultured anterior pituitary cells expressing endogenous CRF2β. Urocortin III is co-released with insulin to potentiate glucose-stimulated somatostatin release in vitro in human pancreatic β-cells.2 In vivo, urocortin III reduces food intake in a dose- and time-dependent manner in mice with a minimum effective dose (MED) of 0.3 nmol/animal.3 It increases swimming time in a forced swim test in mice, indicating antidepressant-like activity.4 References1. Lewis, K., Li, C., Perrin, M.H., et al. Identification of urocortin III, an additional member of the corticotropin-releasing factor (CRF) family with high affinity for the CRF2 receptor. Proc. Natl. Acad. Sci. U.S.A. 98(13), 7570-7575 (2001).2. van der Meulen, T., Donaldson, C.J., Cáceres, E., et al. Urocortin3 mediates somatostatin-dependent negative feedback control of insulin secretion. Nat. Med. 21(7), 769-776 (2015).3. Pelleymounter, M.A., Joppa, M., Ling, N., et al. Behavioral and neuroendocrine effects of the selective CRF2 receptor agonists urocortin II and urocortin III. Peptides 25(4), 659-666 (2004).4. Tanaka, M., Kádár, K., Tóth, G., et al. Antidepressant-like effects of urocortin 3 fragments. Brain Res. Bull. 84(6), 414-418 (2011).

Amylin (IAPP), feline TFA, a 37-amino acid polypeptide derived from felines, stands as a principal secretion product of the pancreatic islets' β-cells. This regulatory peptide notably inhibits the secretion of insulin and glucagon [1].

Endogenous peptide product of human prepro-VIP and analog of porcine PHI-27; potent agonist for the human calcitonin receptor (EC50 = 11 nM). Transgenic mice expressing the human VIP/PHM 27 gene in pancreatic β-islets display enhanced glucose-induced insu