| Bioactivity | OSS_128167 is a potent selective sirtuin 6 (SIRT6) inhibitor with IC50s of 89 μM, 1578 μM and 751 μM for SIRT6, SIRT1 and SIRT2, respectively. OSS_128167 has anti-HBV activity that inhibits HBV transcription and replication. OSS_128167 has anti-cancer, anti-inflammation and anti-viral effects[1][2]. | ||||||||||||
| Invitro | OSS_128167 (Compound 9; 100 µM; 0-24 hours; BxPC3 cells) treatment increases H3K9 acetylation. And also increases GLUT-1 expression in BxPC-3 cells[1].OSS_128167 (Compound 9) effectively blunts phorbol myristate acetate (PMA)-induced TNF-α secretion in cultured BxPC-3 cells. OSS_128167 increases glucose uptake in cells[1].OSS_128167 (100 µM; 96 hours; HepG2.2.15 and HepG2-NTCP cells) treatment significantly decreaseS HBV core DNA and 3.5-Kb RNA levels. OSS_128167 treatment also inhibits hepatitis B surface antigen (HBsAg) and hepatitis B envelope antigen (HBeAg) secretions, as well as HBsAg expression in cell lysates[2].OSS_128167 (200 μM) induces chemosensitization in primary multiple myeloma (MM) cells (NCI-H929), as well as in melphalan-resistant (LR-5) and doxorubicin-resistant (Dox40) MM cell lines[3]. Western Blot Analysis[1] Cell Line: | ||||||||||||
| In Vivo | OSS_128167 (50 mg/kg; intraperitoneal injection; every 4 days; for 12 days; male HBV transgenic mice) treatment markedly suppresses the level of HBV DNA and 3.5-Kb RNA in HBV transgenic mice[2]. Animal Model: | ||||||||||||
| Name | OSS_128167 | ||||||||||||
| CAS | 887686-02-4 | ||||||||||||
| Formula | C19H14N2O6 | ||||||||||||
| Molar Mass | 366.32 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Parenti MD, et al. Discovery of novel and selective SIRT6 inhibitors. J Med Chem. 2014 Jun 12;57(11):4796-804. [2]. Jiang H, et al. SIRT6 Inhibitor, OSS_128167 Restricts Hepatitis B Virus Transcription and Replication Through Targeting Transcription Factor Peroxisome Proliferator-Activated Receptors α. Front Pharmacol. 2019 Oct 25;10:1270. [3]. Cea M, et al. Evidence for a role of the histone deacetylase SIRT6 in DNA damage response of multiple myeloma cells. Blood. 2016 Mar 3;127(9):1138-50. |