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Senexin B

CAS No. : 1449228-40-3

MCE 站：Senexin B

产品活性：Senexin B (SNX2-1-165; BCD-115) 是有效的，高水溶性，具有口服活性的 CDK8/19 抑制剂，对 CDK8 和 CDK19 的 K_d 值分别为 140 nM 和 80 nM。

研究领域：Cell Cycle/DNA Damage

作用靶点：CDK

In Vitro: Senexin B inhibits CDK8/19 in low nanomolar range. Senexin B is a newly optimized derivative of Senexin A. It has the same high selectivity for CDK8/19 ａnd is more potent than Senexin A. Senexin B strongly reduces the emergence of estrogen independent cells. Senexin B shows synergy with fulvestrant in MCF7, T47D-ER/Luc ａnd BT474.

In Vivo: Pretreatment of tumor-free mice with Senexin B significantly inhibits the growth of triple-negative breast cancer (TNBC) cells inoculated into mice subsequently to Senexin B administration, indicating a general chemopreventive effect on the normal tissue “soil”. Senexin B potentiates the tumor-suppressive effect of doxorubicin on established TNBC xenografts; this effect is associated with the suppression of NFκB-mediated transcriptional induction of tumor-promoting cytokines. Senexin B inhibits invasive growth into the muscle layer in an orthotopic xenograft model of MDA-MB-468 TNBC cells. In a spleen-to-liver colon cancer metastasis model of syngeneic mouse CT26 tumors, Senexin B treatment of mice have the same effect as CDK8 knockdown in tumor cells: suppression of metastatic growth in the liver without a significant effect on primary tumor growth in the spleen. Senexin B suppresses tumor growth ａnd augmentes the effects of fulvestrant in ER-positive breast cancer xenografts.

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