Browse our SSTR5 Proteins (SSTR5)

Human Somatostatin Receptor 5 (SSTR5) interaction partners

1. IHC of SSTR subtypes in the different cohorts showed SSTR2 staining intensity scores higher than SSTR5 in TSHoma, acromegaly and prolactinoma, whereas the expression of SSTR5 was stronger than SSTR2 in corticotropinoma and NFPA.

2. Somatostatin receptor 5 variant (sst5TMD4) was expressed in a subset of breast cancers, where it correlated with angiogenic markers, lymphatic metastasis, and reduced disease-free survival.

3. sst5TMD4 is overexpressed in PCa, especially in those patients with a worse prognosis, and plays an important pathophysiologic role in PCa, which suggesting its potential as a biomarker and/or therapeutic target

4. In cotransfected HEK-293 cells, SSTR5 and CB1R existed in a constitutive heteromeric complex under basal condition, which was disrupted upon agonist treatments. Furthermore, concurrent receptor activation led to preferential formation of SSTR5 homodimer and dissociation of CB1R homodimer.

5. Combination treatment increased both SSTR2 and SSTR5 mRNA and protein levels in DU-145 cells. The data suggest that this combination therapy may be a good candidate for patients with advanced metastatic Prostate cancer (PCa) do not respond to androgen deprivation.

6. A truncated splice variant of the somatostatin receptor subtype 5, is associated to features of increased aggressiveness in pancreatic neuroendocrine tumors.

7. SSTR5 was the predominantly expressed receptor subtype in the cytoplasm of all GH-secreting adenomas tested, regardless of whether they came from octreotide-naive, octreotide-responsive, or octreotide-resistant patients. SSTR5 mRNA predominance was significant only in octreotide treated patients. Its expression was not correlated with baseline or post-octreotide GH or IGF-1 levels or tumor volume.

8. Data showed that the distribution of somatostatin receptor (SSTR) subtypes among the 199 pancreatic neuroendocrine tumors (PNETs) was: SSTR2 (54.8%), SSTR1 (53.3%), SSTR4 (51.8%), SSTR5 (33.7%), and SSTR3 (28.6%).

9. This is the first evidence indicating that sst5TMD4 is expressed in human medullary thyroid carcinoma cells, where it associates with more aggressive behavior, suggesting that sst5TMD4 might play a functionally relevant role.

10. Data indicate that somatostatin receptor scintigraphy (SRS) and immunohistochemical results for somatostatin and dopamine receptors sstr2, sstr3, sstr5 and D2R were compared in neuroendocrine neoplasms tissues.

11. Somatostatin receptors were expressed in a high proportion of merkel cell carcinomas, although expression was heterogeneous between tumours and was not associated with disease severity.

12. An immunohistochemical investigation of the expression of somatostatin receptor subtypes

13. SSTR2 and SSTR5 protein levels were induced as compared to any agent alone.

14. SSTR 5 was shown to be the main receptor subtype in the analysed differentiated or anaplastic thyroid malignancies, whereas SSTR 2 was found only in a small percentage.

15. A truncated sst5-variant (sst5TMD4) can influence the secretory response of somatotropinomas to somatostatin analogues-therapy.

16. SSTR5 protein is overexpressed in poorly differentiated thyroid cancer and may be involved in the lack of response to somatostatin analogue treatment.

17. Tumor cells in the tissue samples of the patients diagnosed with advanced-stage hepatocellular carcinoma expressed a high proportion of SSTR1 and SSTR5.

18. High SSTR5 expression is associated with gallbladder cancer.

19. Whereas sst2 receptors might play a primary role in the differentiation and regulation of TSH, LH, and FSH cells, sst5 receptors appear to be mainly involved in GH regulation from birth onward

20. We studied the expression of SSTR(2A) and SSTR(5) with new procedures in 108 pituitary tumors

Mouse (Murine) Somatostatin Receptor 5 (SSTR5) interaction partners

1. The expression and localization of the three receptors (SSTR3-SSTR5) in wild-type (WT), single-knockout (SSTR1 KO) and double-knockout SSTR1/SSTR2 (DKO) mice, are reported.

2. mouse somatostatin receptor 5 is sorted by a network of PDZ-domain containing proteins

3. Findings suggest that somatostatin and its receptors (SSTR2 and SSTR5) are important markers in the regulation and development of Sertoli cell.

4. In comparison to wt, ApoD(-/-) mice exhibit increased SSTR5-like immunoreactivity in paraventricular nuclei and decreased receptor expression in ventromedial hypothalamus and arcuate nucleus.

5. Somatostatin inhibited GIP and glucagon-like peptide-1 (GLP-1) secretion from primary small intestinal cultures, in part through SSTR5.

6. SSTR5 is a negative regulator for PDX-1 expression and SSTR5 may mediate the inhibitory effects of somatostatin and its analogs on insulin expression/secretion and cell proliferation via down-regulating PDX-1

7. SST and SSTRs might play an important role in regulation of neurodegeneration

8. The existence of new truncated sst5-variants with unique ligand-selective signaling properties, which could contribute to further understanding the complex, distinct pathophysiological roles of somatostatin and cortistatin.

9. Extraovarian somatostatin, acting through its receptors 2 and 5 present on granulosa cells, may be involved in mouse folliculogenesis by reducing recruitment of resting follicles.

10. The effect of sst2 receptor knockout on sst5 receptor mRNA localization and binding sites throughout the brain has been determined.

11. the mouse gene promoter has been characterized, and functional activity and nuclear factor interactions were mapped to two specific promoter regions

12. Brain somatostatin receptors 1,2,4 and 5 are up-regulated in somatostatin-deficient mice, and SSTR3 is down-regulated.

13. Expression of SSTR3, SSTR4, and SSTR5 in mouse proximal tubules complements the expression of SSTR1 and SSTR2 in collecting ducts as seen in other species

14. results of these studies suggest sst(5) mediates SRIF inhibition of pancreatic insulin secretion and contributes to the regulation of glucose homeostasis and insulin sensitivity

15. A role for SSTR-5 in regulating insulin secretion.

16. in AtT-20 cells, SST5 regulates the dominant SST2 action, attenuating SST2 effects on intracellular calcium oscillation and internalization

17. SSTR5 plays a pivotal role in the regulation of insulin secretion in the mouse pancreas

18. results suggest that somatostatin receptor 5(SSTR5) plays a pivotal role in insulin secretion and glucose regulation in mice and that its regulatory effects are age-related

19. the presence of sst(5) in the same cells modulates trafficking and cell surface regulation of sst(2A) and cellular desensitization to the effects of SRIF

20. we identified 2 sets of SSTR5 regulated pancreatic genes in SSTR5 deficient mice that belong to the pathways regulating cell proliferation, apoptosis neogenesis, angiogenesis, and tumorigenesis.

Pig (Porcine) Somatostatin Receptor 5 (SSTR5) interaction partners

1. This study describes the cloning and characterization of procine sst5 and identifies two spliced variants with six and three transmembrane domains (TMD): psst5TMD6 and psst5TMD3; psst5TMD6 and psst5TMD3 are functional (e.g., activate calcium signaling.

2. Data demonstrate that urotensin II and urotensin II-related peptide directly activate somatostatin receptors 2 and 5 and thus mimic the effect of somatostatin on its cognate receptors.