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Design, synthesis and evaluation of the cytotoxicity of a N-mustard and paclitaxel conjugate prodrug

Junchao Shao, Haixia Lin*, Yongmei Cui, Shaoman Yin, Erwin G Van Meir, Jiachen Huang   

  1. 1. Department of Chemistry, School of Science, Shanghai University, Shanghai 200444, China
    2. Laboratory of Molecular Neuro-Oncology, Departments of Neurosurgery, Hematology and Medical Oncology, and Emory Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, USA
  • Received:2012-10-24 Revised:2012-12-20 Online:2013-03-18 Published:2013-03-18
  • Contact: Haixia Lin*

Abstract:

The syntheses and preliminary biological evaluation of a potentially bioreductive N-mustard and paclitaxel conjugate prodrug 3 targeting hypoxic tumor tissue are described. Aromatic nitro group was used as the bio-reductive trigger. Generation of paclitaxel occurred after reduction via a subsequent mechanism of “cyclization-cyclization-extrusion”. The prodrug was stable in PBS (pH = 7.4) and released paclitaxel after chemical reduction of the nitro functionality. In aerobic cytotoxicity assays, it exhibited diminished cytotoxicity and is a candidate for further biological evaluation.

Key words: Paclitaxel, N-mustard, Prodrug, Hypoxia

CLC Number: 

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