hdac1/2 in 3

HDAC1/2-IN-3 is an inhibitor of both HDAC1 and HDAC2, demonstrating IC50 values of 0-5 nM and 5-10 nM, respectively.

BRD4097是HDAC1 2 3 8检测中的阴性对照品,是一种选择性组蛋白去乙酰化酶（HDAC3）抑制剂，可用于保护b 细胞和改善胰岛素抵抗，有助于促进认知功能和增强学习和记忆的形成。

mTOR HDAC-IN-1 (Compound 50) 是一个具有选择性的mTOR 和HDAC 双重抑制剂，对mTOR 和HDAC1的IC50分别为0.49和0.91 nM。 mTOR HDAC-IN-1 可作为抗癌活性分子 （anti-cancer） 进行研究。该化合物的粉末形式不稳定，建议选择其他盐形式产品。

ROCK HDAC-IN-1（Compound 10h）作为一种抑制剂，通过口服展现出对ROCK HDAC的有效抑制。该化合物针对ROCK1 2和HDAC1 2 3 6 8表现出卓越的抑制效率，其IC50值分别为254.9 nM、58.18 nM和9.09、8.03、6.26、0.41、7.69 nM。此外，ROCK HDAC-IN-1能激活DAMP，尤其增强了钙网蛋白（CRT）的外露和HMGB1的释放，显示其作为免疫性细胞死亡（ICD）诱导剂的潜力。对于乳腺癌细胞，特别是MDA-MB-231细胞，此抑制剂具有抗增殖活性，IC50值为0.37 μM，且能在不产生明显毒性的情况下，抑制肿瘤生长并激活T细胞。

Givinostat (ITF-2357) is a HDAC inhibitor with an IC50 of 198 and 157 nM for HDAC1 and HDAC3, respectively. Givinostat (ITF2357) suppresses total LPS-induced IL-1β production robustly compared with the reduction by ITF3056. At 25, 50, and 100 nM, Givinostat reduced IL-1β secretion more than 70%. Givinostat (ITF-2357) suppresses the production of IL-6 in PBMCs stimulated with TLR agonists as well as the combination of IL-12 plus IL-18. IL-6 secretion decreases to 50% at 50 nM Givinostat, but at 100 and 200 nM, there is no reduction[1]. As shown by the CCK-8 assay, Givinostat (ITF-2357) inhibits JS-1 cell proliferation in a concentration-dependent manner. Treatment with Givinostat ≥500 nM is associated with significant inhibition of JS-1 cell proliferation (P<0.01). Also, the cell inhibition rate significantly differs between the group cotreated with Givinostat ≥250 nM plus LPS and the group without LPS treatment (same Givinostat concentration) (P<0.05)[2]. Givinostat (ITF2357) at 10 mg kg is used as a positive control and, as expected, reduced serum TNFα by 60%. Strikingly, pretreatment of ITF3056 starting at 0.1 mg kg significantly reduces the circulating TNFα by nearly 90%. To achieve a significant increase in serum IL-1β production, a higher dose of LPS is injected (10 mg kg), and blood is collected after 4 h. Similarly, when pretreated with lower doses of Givinostat (ITF-2357) (1 or 5 mg kg), there is a 22% reduction for 1 mg kg and 40% for 5 mg kg[1]. [1]. Li S, et al. Specific inhibition of histone deacetylase 8 reduces gene expression and production of proinflammatory cytokines in vitro and in vivo. J Biol Chem. 2015 Jan 23;290(4):2368-78. [2]. Wang YG, et al. Givinostat inhibition of hepatic stellate cell proliferation and protein acetylation. World J Gastroenterol. 2015 Jul 21;21(27):8326-39. [3]. Leoni F, et al. The histone deacetylase inhibitor ITF2357 reduces production of pro-inflammatory cytokines in vitro and systemic inflammation in vivo. Mol Med. 2005 Jan-Dec;11(1-12):1-15.

NR-160 is an inhibitor of histone deacetylase 6 (HDAC6; IC50= 0.03 μM).1It is selective for HDAC6 over HDAC1, -2, -3, -4, and -8 (IC50s = 5.18, 2.26, 8.48, 55.4, and 14.7 μM, respectively). NR-160 is cytotoxic against a panel of seven cancer cell lines (IC50s = 22.5-51.8 μM). It enhances cytotoxicity induced by bortezomib in HL-60 cells, as well as cytotoxicity induced by epirubicin or daunorubicin in CCRF-HSB-2 T cell acute lymphoblastic leukemia cells.

CAY17c is an inhibitor of bromodomain-containing protein 4 (BRD4; IC50= 0.71 μM), as well as class I histone deacetylases (HDACs; IC50s = 0.046, 0.058, 0.075, and 0.167 μM for HDAC1, -2, -3, and -8, respectively) and class IIb HDACs (IC50s = 0.073 and 0.923 μM for HDAC6 and HDAC10, respectively).1It is selective for these enzymes over BRD2, -3, and -T (IC50s = >20 μM for all), as well as over HDAC4, -5, -7, -9, and -11 (IC50s = >10 μM for all). CAY17c inhibits the proliferation of HCT116, SW620, and DLD-1 colorectal cancer cells (IC50s = 0.45, 1.78, and 2.11 μM, respectively), as well as induces apoptosis and autophagy in HCT116 cells. It reduces tumor growth in an HCT116 mouse xenograft model when administered at doses of 15 and 30 mg/kg. 1.Pan, Z., Li, X., Wang, Y., et al.Discovery of thieno[2,3-d]pyrimidine-based hydroxamic acid derivatives as bromodomain-containing protein 4/histone deacetylase dual inhibitors induce autophagic cell death in colorectal carcinoma cellsJ. Med. Chem.63(7)3678-3700(2020)

HDAC-IN-47 是一种口服具有活力的组蛋白去乙酰化酶 (HDAC) 的抑制剂，对 HDAC1、HDAC2、HDAC3、HDAC6、HDAC8 的 IC50 值分别为 19.75 nM、57.8 nM、40.27 nM、5.63 nM、302.73 nM。HDAC-IN-47 可以将细胞周期阻滞在 G2 M 期，抑制细胞自噬，能够利用 Bax Bcl-2 和 caspase-3 通路诱导凋亡，在体内具有抗癌活性。

HDAC-IN-38 是一种 HDAC 的有效抑制剂。HDAC-IN-38 对 HDAC1、2、3、5、6 和 8 具有类似的微摩尔抑制作用，也可以提高组蛋白乙酰化水平 (H3K14 或 H4K5)。HDAC-IN-38 能够提高脑血流量 (CBF)，减轻认知障碍，改善海马萎缩。

Quisinostat dihydrochloride (JNJ26854165(Quisinostat) 2HCl) 是一种有口服活性，高效的 pan-HDAC 抑制剂，具有广泛的抗肿瘤活性。它对 HDAC1、HDAC2、HDAC4、HDAC10和HDAC11 的IC50值分别为 0.11 nM、0.33 nM、0.64 nM、0.46 nM 和 0.37 nM。

HDAC CD13-IN-1 (Compound 12) 作为HDAC CD13抑制剂, 对hCD13的IC50为0.34 μM, 猪CD13为0.53 μM, 对HDAC1 2 3的IC50分别为0.03、0.06、0.02 μM。此化合物有效抑制MV4-11、K562、Jeko-1 和 HL60细胞增殖, IC50范围为0.25-2.04 μM，并诱导癌细胞凋亡。同时表现出抗转移和抗侵袭的特性。