(D-Phe5,Cys6,11,N-Me-D-Trp8)-Somatostatin-14 (5-12) amide (Compound 4) is a somatostatin analog with Kds of 0.61, 11.05, 23.5, 1200 and >1000 nM for SSTR5, SSTR3, SSTR2, SSTR1 and SSTR4, respectively[1].
Cortistatin-14, a neuropeptide have structural similarity to somatostatin-14, binds and exerts its function via the somatostatin receptors (sst1-sst5). Cortistatin-14 shows anticonvulsive, neuroprotective effect and remarkable anti-inflammatory properties[1][2][3][4].
TT-232 (CAP-232), a somatostatin derivative, is a peptide SSTR1/SSTR4 agonist. TT-232 inhibits cancer cell proliferation and induces apoptosis. TT-232 is also a broad-spectrum anti-inflammatory and analgesic agent[1][2][4].
Cortistatin-29 (human) is a somatostatin neuropeptide with potential for studying diseases such as cancer, inflammation, autoimmunity, fibrosis, and pain[1][2].
[Tyr12] Somatostatin 28 (1-14) is an analogue of Somatostatin-28 (1-14) (HY-P1499). Somatostatin-28 (1-14) is an N-terminal fragment of the neuropeptide somatostatin-28[1].
CH 275 is a potent and selective somatostatin receptor 1 (sst1) agonist and display IC50 values of 30.9 nM, 345 nM, >1 μM, >10 μM for human human sst1, sst3, sst4, sst2 and sst5 respectively[1]. CH 275 can be used for the research of Alzheimer’s disease[2].
L-803087 TFA is a potent and selective somatostatin sst4 receptor agonist with a Ki of 0.7 nM. L-803087 TFA is >280-fold more selective for sst4 receptor than other somatostatin receptors. L-803087 TFA facilitates AMPA-mediated hippocampal synaptic responses in vitro and increases kainate-induced seizures in mice[1][2].
MAT2A-IN-2 is a potent inhibitor of MAT2A. The expression level of MAT2A is abnormally high in several types of tumors, including gastric, colon, liver and pancreatic cancers. MAT2A-IN-2 reduces the proliferative activity of MTAP-deficient cancer cells. MAT2A-IN-2 has the potential for the research of cancer diseases (extracted from patent WO2020243376A1, compound 172)[1].
Tyr-(D-Dab4,Arg5,D-Trp8)-cyclo-Somatostatin-14 (4-11) is a somatostatin agonist that can be used in cancer research[1].
Octreotide acetate, a long-acting synthetic analog of native somatostatin, inhibits growth hormone, glucagon, and insulin more potently.
Octreotide is a somatostatin analog that binds to the somatostatin receptor, mainly subtypes 2, 3, and 5, increases Gi activity, and reduces intracellular cAMP production.
Octreotide (SMS 201-995) pamoate is a somatostatin receptor agonist and synthetic octapeptide endogenous somatostatin analogue. Octreotide pamoate can bind to the somatostatin receptors which are mainly subtypes 2, 3 and 5. Octreotide pamoate increases Gi activity and reduces intracellular cAMP production. Octreotide pamoate has antitumor activity, mediates apoptosis and may also be used in disease studies in acromegaly[1][2].
Nendratareotide is a somatostatin analogue[1].
AP102 is a dual SSTR2/SSTR5-specific somatostatin analog (SSA). AP102 is a disulfide-bridged octapeptide SSA containing synthetic iodinated amino acids. AP102 binds with subnanomolar affinity to SSTR2 and SSTR5 (IC50: 0.63 and 0.65 nM, respectively). AP102 does not bind to SSTR1 or SSTR3. AP102 can be used for acromegaly and neuroendocrine tumors research[1].
Angiopeptin, a cyclic octapeptide analogue of somatostatin, markedly inhibits myointimal proliferation in response to endothelial cell injury. Angiopeptin is a potent and full agonists to inhibit adenylate cyclase or stimulate extracellular acidification through the sst2 or sst5 receptor. Angiopeptin is a potent inhibitor of growth hormone release and insulin-like growth factor-1 production[1][2].
MK-4256 is a potent and selective SSTR3 antagonist with IC50s of 0.66 nM and 0.36 nM in human and mouse receptor binding assays, respectively.
L-797591 is a selective somatostatin receptor subtype 1 (SSTR1) agonist[1].
NNC 26-9100 is a selective somatostatin sst4 receptor full agonist (Ki: 6 nM, EC50: 2 nM). NNC 26-9100 decreases total soluble Aβ42, increases brain neprilysin activity and improves learning[1][2].
DOTA-JR11 is a somatostatin receptor 2 （SSTR2）antagonist. DOTA-JR11 can be labeled by 68Ga, used for paired imaging in neuroendocrine tumors (NETs) research[1].
L-803087 is a potent and selective somatostatin sst4 receptor agonist with a Ki of 0.7 nM, which is > 280-fold higher than other somatostatin receptors. L-803087 facilitates AMPA-mediated hippocampal synaptic responses in vitro and increases kainate-induced seizures in mice[1][2].
SSTR5 Antagonist 1 (compound 10) is a highly potent, oral active and selective somatostatin (receptor) subtype 5 (SSTR5) antagonist and has potential to treat type 2 diabetes mellitus (T2DM)[1].
L-817818 is a potent and subtype-selective agonist of the somatostatin receptor. L-817818 provides a direct approach to defining somatostatin receptor physiological functions[1]
Onzigolide (BIM-23A760), a chimeric dopamine-somatostatin compound, shows potent agonist activity at both DA type 2 (D2R) and SST type 2 (SSTR2) receptors[1][2].
MAT2A-IN-3 is a potent inhibitor of MAT2A. The expression level of MAT2A is abnormally high in several types of tumors, including gastric, colon, liver and pancreatic cancers. MAT2A-IN-3 reduces the proliferative activity of MTAP-deficient cancer cells. MAT2A-IN-3 has the potential for the research of cancer diseases (extracted from patent WO2019191470A1, compound 265)[1].
SSTR5 antagonist 2 (compound 10) is a highly potent, oral active and selective somatostatin (receptor) subtype 5 (SSTR5) antagonist and has potential to treat type 2 diabetes mellitus (T2DM)[1].
BIM 23056, a linear octapeptide, is a potent sst3 and sst5 somatostatin receptor antagonist with Ki values of 10.8, 5.7, respectively[1].
Cyclosomatostatin is a potent somatostatin (SST) receptor antagonist. Cyclosomatostatin can inhibit somatostatin receptor type 1 (SSTR1) signaling and decreases cell proliferation, ALDH+ cell population size and sphere-formation in colorectal cancer (CRC) cells[1].
J-2156 TFA is a high potent, selective somatostatin receptor type 4 (SST4 receptor) agonist with IC50s of 0.05 nM and 0.07 nM for human and rat SST4 receptors, respectively. J-2156 TFA is used for the relief of mechanical allodynia and mechanical hyperalgesia in the ipsilateral hindpaws in rats[1][2].
Somatostatin-28 (sheep) is a biologically active polypeptide, synthesised in the proximal intestinal epithelial cells. Somatostatin-28 (sheep) suppresses glucose-stimulated insulin secretion without affecting circulating basal insulin concentration. Somatostatin-28 (sheep) also targets to somatostatin receptor subtype 5 (SSTR5) to regulate GLP-1 secretion[1][2].
Cortistatin-17 (human) is a somatostatin neuropeptide with potential for studying diseases such as cancer, inflammation, autoimmunity, fibrosis, and pain[1][2].