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3篇 您的检索式:作者名="Brandon Wainwright"
    题名 作者 年代 出处 被引量
1Tumor shrinkage by cyclopamine tartrate through inhibiting hedgehog signaling显示文摘The link of hedgehog (Hh) signaling activation to human cancer and synthesis of a variety of Hh signaling inhibitors raise great expectation that inhibiting Hh signaling may be effective in human cancer treatment. Cyclopamine (Cyc), an alkaloid from the Veratrum plant, is a specific natural product inhibitor of the Hh pathway that acts by targeting smoothened (SMO) protein. However, its poor solubility, acid sensitivity, and weak potency relative to other Hh antagonists prevent the clinical development of Cyc as a therapeutic agent. Here, we report properties of cyclopamine tartrate salt (CycT) and its activities in Hh signaling-mediated cancer in vitro and in vivo. Unlike Cyc, CycT is water soluble (5-10 mg/mL). The median lethal dose (LD50) of CycT was 62.5 mg/kg body weight compared to 43.5 mg/kg for Cyc, and the plasma half-life (T1/2) of CycT was not significantly different from that of Cyc. We showed that CycT had a higher inhibitory activity for Hh signaling-dependent motor neuron differentiation than did Cyc (IC50 = 50 nmol/L for CycT vs. 300 nmol/L for Cyc). We also tested the antitumor effectiveness of these Hh inhibitors using two mouse models of basal cell carcinomas (K14cre:Ptch1neo/neo and K14cre:SmoM2YFP). After topical application of CycT or Cyc daily for 21 days, we found that all CycT-treated mice had tumor shrinkage and decreased expression of Hh target genes. Taken together, we found that CycT is an effective inhibitor of Hh signaling-mediated carcinogenesis.Qipeng Fan Dongsheng Gu Miao He Hailan Liu Tao Sheng Guorui Xie Ching-xin Li Xiaoli Zhang Brandon Wainwright Arash Garrossian Massoud Garrossian Dale Gardner Jingwu Xie 2011Chinese Journal of Cancer2011,30,7:3
2Medulloblastoma Can Be Initiated by Deletion of Patched in Lineage-Restricted Progenitors or Stem Cells显示文摘Zeng-Jie Yang Tammy Ellis Shirley L. Markant Tracy-Ann Read Jessica D. Kessler Melissa Bourboulas Ulrich Schüller Robert Machold Gord Fishell David H. Rowitch Brandon J. Wainwright Robert J. Wechsler-Reya 2008Cancer Cell2008,,2:1
3Neogenin1 is a sonic hedgehog target in medulloblastoma and is necessary for cell cycle progression显示文摘Luis A. Milla Andrea Arros Natalie Espinoza Marc Remke Marcel Kool Michael D. Taylor Stefan M. Pfister Brandon J. Wainwright Verónica Palma 2014Int J Cancer2014,,1:1
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