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. 1996 Apr;13(1):1-10.

Analysis of p53 gene mutations in human glioma cell lines

H Koga  1 , S Zhang, K Washiyama, T Ichikawa, K Onda, T Kumanishi
Affiliations
  • PMID: 8916120

Analysis of p53 gene mutations in human glioma cell lines

H Koga et al. Noshuyo Byori. 1996 Apr.

Abstract

Seven human glioma cell lines were examined for mutations of the p53 gene and their mRNA and protein expressions. Five cell lines revealed a missense mutation at, codons 237, 245, or 273. Their p53 mRNA expression was variably distinct and not always comparable to p53 protein expression, suggesting difference in the transcriptional and posttranscriptional regulation. One cell line had a splicing mutation in intron 9 and abnormal splicing was actually demonstrated by RT-PCR analysis. The remaining 1 cell line showed no PCR-amplification of the p53 gene sequence. In an examination of the original tumor tissues, the same mutations were demonstrated in the 5 tumors examined, strongly suggesting that the mutations in the glioma cell lines were derived from their original tumor tissues.

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