CG-200745

CG-200745 (CG-200745) 是一种具有口服活性的强效 pan-HDAC 抑制剂，其异羟肟酸部分可与催化袋底部的锌结合。 CG-200745 抑制组蛋白 H3 和微管蛋白的去乙酰化。 CG-200745 诱导 p53 的积累，促进 p53 依赖性反式激活，并增强 MDM2 和 p21 (Waf1/Cip1) 蛋白的表达。 CG-200745 增强了吉西他滨耐药细胞对吉西他滨和 5-氟尿嘧啶 (5-FU;) 的敏感性。 CG-200745 诱导细胞凋亡并具有抗肿瘤作用。

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Background

CG-200745 is a potent HDAC inhibitor, with IC50s of <3 μM for sensitive non-small cell lung cancer (NSCLC) cell lines. CG-200745 induces the accumulation of p53, promotes p53-dependent transactivation, and enhances the expression of proteins encoded by p53 target genes, MDM2 and p21 (Waf1/Cip1) in human prostate cancer cells[1]. CG-200745 attenuates phosphorylation of p38 MAPK in kidneys and it has a renoprotective effect by suppressing renal fibrosis and inflammation in a unilateral ureteral obstruction (UUO) mouse model[2]. HDAC p38 MAP kinase p53

CG-200745 (0-10 μM; 48 hours) reduces the Calu6 cells proliferation to 40% of untreated cells[1]. CG-200745 (3 μM; 1-24 hours) significantly increases Calu6 cells proportion in G2/M phase (69%)[1]. CG-200745 (0-10 μM; 1-24 hours) treatment with low concentration significantly increases the acetylation of histone H3 and H4 in Calu6 cells at various sites in a time-dependent manner up to 24 hours after treatment[1]. Cell Proliferation Assay[1] Cell Line: Calu6 cells

CG-200745 (p.o.; 30 mg/kg/day; for 7 days) attenuates oxidative stress, inflammatory cytokines, and adhesion molecules in UUO kidneys[2]. Animal Model: Male 8-week-old C57BL/6 J mice weighing 20~22 g of unilateral ureteral obstruction (UUO)[2]

[1]. Chun SM, et al. Epigenetic modulation with HDAC inhibitor CG200745 induces anti-proliferation in non-small cell lung cancer cells. PLoS One. 2015 Mar 17;10(3):e0119379. [2]. Choi HS, et al. Histone deacetylase inhibitor, CG200745 attenuates renal fibrosis in obstructive kidney disease. Sci Rep. 2018 Aug 1;8(1):11546.