Pladienolide B

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Spliceosomes mediate the processing of pre-mRNA into mature mRNA.

货号：ajci21802
CAS：445493-23-2
分子式：C30H48O8
分子量：536.7
纯度：98%
存储：Store at -20°C
库存：现货

Background:

Spliceosomes mediate the processing of pre-mRNA into mature mRNA.[1],[2] Each spliceosome is a multiunit complex containing several proteins and RNA molecules that work in unison to repeatedly cleave and rejoin segments of mRNA.[1],[3] Pladienolide B is a macrocyclic lactone that selectively binds splicing factor 3b and inhibits mRNA splicing.[4],[5] Through this action, pladienolide B potently blocks the growth of proliferating cells with mean IC50 values of 1.6 nM for six gastric cancer cell lines.[6],[7] In xenograft tumors generated in mice using human cancer cells, pladienolide B blocks mRNA splicing and induces apoptosis, clearing tumors within two weeks after treatment.[7]

Reference:
[1]. Naro, C., and Sette, C. Phosphorylation-mediated regulation of alternative splicing in cancer. Int.J.Cell Biol. 2013, 1-16 (2013).
[2]. Webb, T.R., Joyner, A.S., and Potter, P.M. The development and application of small molecule modulators of SF3b as therapeutic agents for cancer. Drug Discovery Today 18(1-2), 43-49 (2013).
[4]. Yokoi, A., Kotake, Y., Takahashi, K., et al. Biological validation that SF3b is a target of the antitumor macrolide pladienolide. FEBS Journal 278(24), 4870-4880 (2011).
[5]. Kotake, Y., Sagane, K., Owa, T., et al. Splicing factor SF3b as a target of the antitumor natural product pladienolide. Nature Chemical Biology 3, 570-575 (2007).
[6]. Effenberger, K.A., Anderson, D.D., Bray, W.M., et al. Coherence between cellular responses and in vitro splicing inhibition for the anti-tumor drug pladienolide B and its analogs. The Journal of Biological Chemisty 289, 1938-1947 (2014).
[7]. Sato, M., Muguruma, N., Nakagawa, T., et al. High antitumor activity of pladienolide B and its derivative in gastric cancer. Cancer Science 105(1), 110-116 (2014).