CAS NO: | 14930-96-2 |
包装 | 价格(元) |
10 mM * 1 mL in DMSO | 电议 |
1mg | 电议 |
5mg | 电议 |
10mg | 电议 |
50mg | 电议 |
100mg | 电议 |
生物活性 | Cytochalasin B is a cell-permeable mycotoxin binding to the barbed end ofactinfilaments, disrupting the formation of actinpolymers, withKdvalue of 1.4-2.2 nM for F-actin. Cytochalasin B blocks cell migration. | ||||||||||||||||
IC50& Target | Kd: 2.2 nM (F-actin, with Mg2+), 1.4 nM (F-actin, with Mg2+/K+)[1] | ||||||||||||||||
体外研究 (In Vitro) | 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[1]. 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[2]. 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[3]. | ||||||||||||||||
体内研究 (In Vivo) | 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[2]. | ||||||||||||||||
Clinical Trial | |||||||||||||||||
分子量 | 479.61 | ||||||||||||||||
性状 | Solid | ||||||||||||||||
Formula | C29H37NO5 | ||||||||||||||||
CAS 号 | 14930-96-2 | ||||||||||||||||
中文名称 | 细胞松弛素B;松胞菌素B | ||||||||||||||||
结构分类 |
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来源 | Mould | ||||||||||||||||
运输条件 | Room temperature in continental US; may vary elsewhere. | ||||||||||||||||
储存方式 |
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溶解性数据 | In Vitro: DMSO : 83.33 mg/mL(173.75 mM;ultrasonic and warming and heat to 60℃) Ethanol : 25 mg/mL(52.13 mM;Need ultrasonic) 配制储备液
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