hdac1-in-8

HDAC1-IN-8 (compound 5c) 是一种高效且选择性的HDAC1抑制剂，其对HDAC1、HDAC6、HDAC8的IC50值分别为11.94、22.95和>500 µM。HDAC1-IN-8 展现出抗增殖特性，并引发细胞周期在G1和G2/M阶段停滞，同时诱导自噬 (autophagy)。此外，HDAC1-IN-8 具有显著的抗癌活性，显示出对肺癌研究的潜在价值。

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。

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。

HDAC3/BRD4-IN-1 (compound 26n) 是一种HDAC3/BRD4的抑制剂，其针对HDAC3的IC50为8 nM，而对HDAC1和HDAC2的IC50分别为220 nM和120 nM。HDAC3/BRD4-IN-1 展现出抗肿瘤和抗增殖作用，并通过上调Ac-H3和下调c-Myc实现。该化合物在人肝脏微粒中的半衰期为29.36分钟 (t1/2=29.36 min)。

Gemcitabine monophosphate is a novel HDAC inhibitor with broad-spectrum antitumor activity against solid (IC50: 30 to 300 nM) and hematological malignancies. Gemcitabine monophosphate was found to be a potent inhibitor of HDAC1 and -8 (class I) in vitro.

Givinostat(ITF-2357)是一种非选择性和口服活性的HDAC抑制剂，能够抑制STAT5磷酸化，对crlf2重排的BCP-ALL具有抗肿瘤活性并诱导凋亡。Givinostat具有抗炎活性，在endotoxin刺激的PBMCs中抑制TNF-α和IL-1β，还能够促进β细胞的存活，可用于糖尿病、急性淋巴细胞白血病和关节炎。

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)

HDAC6/8/BRPF1-IN-1 is a dual inhibitor that targets HDAC6, HDAC8, and the bromodomain and PHD finger containing protein 1 (BRPF1). It exhibits inhibitory activity against HDAC1, HDAC6, and HDAC8 with IC50 values of 797 nM, 344 nM, and 908 nM, respectively. In addition, it inhibits BRPF1 with a Kd value of 175.2 nM. This compound is utilized in cancer research [1].

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。

CDK/HDAC-IN-2 是有效的 HDAC/CDK 双重抑制剂，能够作用于 HDAC1 (IC50: 6.4 nM)、HDAC2 (IC50: 0.25 nM)、HDAC3 (IC50: 45 nM)、HDAC6,8 (IC50>1000 nM)、CDK1 (IC50: 8.63 nM)、CDK2 (IC50: 0.30 nM)、CDK4,6,7 (IC50>1000 nM)。CDK/HDAC-IN-2 能够将细胞周期停滞在 G2/M 期，并诱导细胞凋亡 (apoptosis)。CDK/HDAC-IN-2 具有优异的抗增殖效果，显示出显著的抗肿瘤作用。

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。

Tubulin/HDAC-IN-3（compound 12a）为一种高效的tubulin/HDAC汇合型抑制剂，能显著破坏微管蛋白聚合（IC50: 5.4 μM），并对HDAC1/8展现强效抑制作用，IC50值分别为0.155 μM和0.177 μM。该化合物通过阻断细胞周期、诱导细胞凋亡（apoptosis）及抑制集落形成以施展其生物学效用。

HDAC-IN-67 (compound 27f)，作为一种HDAC抑制剂，对HDAC1和HDAC6展现出强效的抑制作用，其IC50值仅为22 nM和8 nM。该化合物能够有效抑制细胞增殖并且诱导细胞凋亡（apoptosis），显示出潜在的抗肿瘤活性。