Abstract
Malignant gliomas are highly resistant tumors against γ-irradiation and contained overexpression of p21WAF1/CIP1 (p21). Overexpression of p21 enhanced clonogenic survival and suppressed apoptosis after γ-irradiation in human brain tumor cell lines with or without p53 protein deficiency. The effect of antisense oligonucleotide to p21 against the γ-irradiation-induced apoptosis and cytotoxicity in malignant glioma cell lines was examined. Antennapedia homeodomain internalization peptide was used as an insertion vector. The high transfection efficiency of Antennapedia homeodomain internalization peptide joined with antisense oligonucleotide was observed. The pretreatment with antisense oligonucleotide enhanced the γ-irradiation-induced apoptosis and cytotoxicity in radioresistant glioma cells. p21 may represent an important new target for radiosensitization protocols, possibly involving antisense oligonucleotide directed against.
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Kokunai, T., Urui, S., Tomita, H. et al. Overcoming of Radioresistance in Human Gliomas by p21WAF1/CIP1 Antisense Oligonucleotide. J Neurooncol 51, 111–119 (2001). https://doi.org/10.1023/A:1010645205169
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DOI: https://doi.org/10.1023/A:1010645205169