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Acta Biochimica et Biophysica Sinica

Year: 2010  |  Volume: 42  |  Issue: 4  |  Page No.: 274 - 280

Target gene therapy of glioma: overexpression of BAX gene under the control of both tissue-specific promoter and hypoxia-inducible element

J Huang, J Gao, X Lv, G Li, D Hao, X Yao, L Zhou, D Liu and R. Wang

Abstract

Glioma-specific transcription of tumor-killing genes has been exploited as a promising gene therapeutic modality in glioma patients. Musashi1 (Msi1) and GFAP gene promoters are both cancer-specific promoters. Optimized HIF-binding site (optHBS) sequence was newly found as efficient as EPO HREs used as enhancer in cancer gene therapy. We constructed 4optHBS-Msi1/GFAP promoters and tested their ability to mediate BAX expression to induce apoptosis in glioma cell lines. Our results demonstrated that 4optHBS-Msi1/GFAP promoters are apparently strong and glioma-selective promoters with potential application in targeted glioma gene therapy, and 4optHBS-Msi1/GFAP-BAX are valuable tools for glioma gene therapy.

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