Cytochalasin B

本公司产品仅用于科研实验，不得用于人体或动物的临床与诊断

Cytochalasin B 是一种能透过细胞的真菌毒素，能够与肌动蛋白丝的有刺端结合，扰乱肌动蛋白聚合物的形成，对 F-actin 的 Kd 值为 1.4-2.2 nM。Cytochalasin B 抑制细胞迁移。

Cytochalasin B is a cell-permeable mycotoxin binding to the barbed end of actin filaments, disrupting the formation of actin polymers, with Kd value of 1.4-2.2 nM for F-actin. Cytochalasin B blocks cell migration.

Cytochalasin B is a cell-permeable mycotoxin binding to the barbed end of actin filaments, inhibits the enlongation and shortening of actin filaments, with Kds of 2.2 nM and 1.4 nM for F-actin in the presence of MgCl2 (2 mM) or MgCl2 (2 mM) plus KCl, respectively. Cytochalasin B (0.1-10 μM) shows inhibitory effect on multiple murine cancer cell lines, with IC50s of 2.56 μM (M109c), 10.46 μM (B16BL6), 105.5 μM (P388/ADR), 51.9 μM (P388/S) and IC80s of 12.23 μM (M109c), 44.86 μM (B16BL6), 188.4 μM (P388/ADR), 84.1 μM (P388/S) after treatment for 3 h, with IC50s of 0.25 μM (M109c), 0.37 μM (B16F10), 0.87 μM (B16BL6), and IC80s of 0.75 μM (M109c), 1.21 μM (B16F10), 10.41 μM (B16BL6) after treatment for 4 days. Cytochalasin B (6 μM) increases the myofibrillar fragmentation index (MFI), which is attributed to the intensely breaking of myofibrillar proteins into short segments. Cytochalasin B also accelerates the disruption of actin filaments. In addition, Cytochalasin B accelerates the transformation from F-actin to G-actin, lowering the content of F-actin and significantly increasing G-actin bands during postmortem conditioning.

Cytochalasin B (10, 25, 50 mg/kg, i.p.) dose-dependently increases the life expectancy of Balb/c mice bearing with P388/ADR leukemias. Cytochalasin B at 50 mg/kg produces 10 % long-term survival in the multidrug resistant P388/ADR cohort, and 40 % long-term survival in the drug sensitive P388/S cohort.

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Cytoskeleton/Cell Adhesion Molecules

Arp2/3 complex

Arp2/3 Complex

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14930-96-2

479.61

C29H37NO5

>98% (HPLC)

In Vitro:?DMSO 中的溶解度 : 83.33 mg/mL (173.75 mM; 超声助溶 (<60°C); Ethanol 中的溶解度 : 25 mg/mL (52.13 mM; 超声助溶)

[H][C@]12[C@H](Cc3ccccc3)NC(=O)C11OC(=O)\C=C\[C@H](O)CCC[C@@H](C)C\C=C\[C@@]1([H])[C@H](O)C(=C)[C@H]2C

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(-20℃)

With Ice Pack

≥ 2 years