Cytochalasin D is an actin inhibitor, the removal of actin stress fibers is crucial for the chondrogenic differentiation. It may be an inhibitor of some fertilization processes such as sperm penetration or sperm head decondensation. Cytochalasin D inhibit
Cytochalasin B is a mycotoxin binding to the barbed end of actin filaments. It can disrupt the formation of actin polymers (Kd: 1.4-2.2 nM for F-actin).
Dihydrocytochalasin B (H2CB) 是一种细胞分裂抑制剂,抑制胞质分裂并改变细胞的形态,破坏 Swiss/3T3 小鼠成纤维细胞的肌动蛋白结构,抑制血清生长因子在静止培养物中刺激 DNA 合成的能力,瓦解肌动蛋白细胞结构并抑制 3T3 细胞中 DNA 合成的启动。低剂量的 H2CB 会导致细胞变圆和肌动蛋白微丝束的丢失。
Inhibits neural Wiskott-Aldrich syndrome protein (N-WASP) by stabilizing the autoinhibited state of the protein. Blocks phosphatidylinositol 4,5-bisphosphate (PIP2)-stimulated actin assembly (IC50 ~ 2 μM) but does not directly inhibit actin polymerization
Latrunculin A is a toxin isolated from the red sea sponge Latrunculia magnifica. Latrunculin A binds to actin monomers and it also inhibits polymerization of actin (Kds: 0.1, 0.4, 4.7 μM, and 0.19 μM for ATP-actin, ADP-Pi-actin, ADP-actin, and G-actin, re
EG-011 是一种首创且高效的 Wiskott-Aldrich 综合征蛋白(WASP)激活剂,能够解除 WASP 的自抑制状态并强烈诱导肌动蛋白聚合。EG-011 在淋巴瘤中表现出选择性抗肿瘤活性,支持EG-011 在肿瘤生物学研究中用于探索细胞骨架调控、免疫细胞信号传导及 WASP 驱动的肿瘤易感性。
19-O-Acetylchaetoglobosin A is a fungal metabolite originally isolated fromC. globosumthat has actin polymerization inhibitory and cytotoxic activities.1,2It inhibits actin polymerization in a cell-free assay when used at a concentration of 2 μM.219-O-Acetylchaetoglobosin A (3.2, 10, and 32 μg/ml) is cytotoxic to HeLa cervical cancer cells.1
1.Umeda, M., Ohtsubo, K., Saito, M., et al.Cytotoxicity of new cytochalasans from Chaetomium globosumExperientia31(4)435-438(1975) 2.Sekita, S., Yoshihira, K., Natori, S., et al.Structure-activity relationship of thirty-nine cytochalasans observed in the effects on cellular structures and cellular events and on actin polymerization in vitroJ. Pharmacobiodyn.8(11)906-916(1985)