Detection of p53 alterations in human astrocytomas using frozen tissue sections for the polymerase chain reaction

Koji Aka, Janet M. Bruner, Melissa L. Bondy, Keith Ligon, Toru Nishi, Auro del Giglio, Richard P. Moser, Victor A. Levin, Hideyuki Saya

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The polymorphism of amino acid residue 72 on the human p53 tumor-suppressor gene is a useful marker for detecting intragenic loss of heterozygosity (LOH). We examined the LOH of the p53 gene in human malignant astrocytomas by the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis using DNA extracted from frozen tissue sections under histologic examination. Eleven of 16 informative cases (69%) of the malignant astrocytomas were found to have LOH in the p53 gene. Sequential frozen sections were analyzed by immunohistochemistry using anti-p53 antibody PAb1801 to detect overexpression of the p53 protein, which is presumably altered if it is detectable. Ten of the 11 cases that had LOH of the p53 gene overexpressed the p53 protein. Moreover, 4 of the 11 patients with LOH of the p53 gene developed a second neoplasm in addition to an astrocytoma, possibly indicating genetic instability in these patients. These data suggest that alterations of the p53 gene may play an important role in the genesis of malignant astrocytoma. The combination of the PCR-RFLP method and immunohistochemical analysis using frozen tissue sections is a practical diagnostic tool for examination of human malignancies, including astrocytomas.

Original languageEnglish
Pages (from-to)125-133
Number of pages9
JournalJournal of Neuro-Oncology
Volume16
Issue number2
DOIs
Publication statusPublished - 1993 Jun
Externally publishedYes

Fingerprint

Loss of Heterozygosity
p53 Genes
Astrocytoma
Frozen Sections
Polymerase Chain Reaction
Restriction Fragment Length Polymorphisms
Second Primary Neoplasms
Tumor Suppressor Genes
Anti-Idiotypic Antibodies
Proteins
Immunohistochemistry
Amino Acids
DNA
Neoplasms

Keywords

  • astrocytoma
  • frozen tissue section
  • loss of heterozygosity
  • mutation
  • p53 gene
  • second malignant neoplasm

ASJC Scopus subject areas

  • Neuroscience(all)
  • Oncology
  • Clinical Neurology
  • Cancer Research

Cite this

Detection of p53 alterations in human astrocytomas using frozen tissue sections for the polymerase chain reaction. / Aka, Koji; Bruner, Janet M.; Bondy, Melissa L.; Ligon, Keith; Nishi, Toru; del Giglio, Auro; Moser, Richard P.; Levin, Victor A.; Saya, Hideyuki.

In: Journal of Neuro-Oncology, Vol. 16, No. 2, 06.1993, p. 125-133.

Research output: Contribution to journalArticle

Aka, K, Bruner, JM, Bondy, ML, Ligon, K, Nishi, T, del Giglio, A, Moser, RP, Levin, VA & Saya, H 1993, 'Detection of p53 alterations in human astrocytomas using frozen tissue sections for the polymerase chain reaction', Journal of Neuro-Oncology, vol. 16, no. 2, pp. 125-133. https://doi.org/10.1007/BF01324699
Aka, Koji ; Bruner, Janet M. ; Bondy, Melissa L. ; Ligon, Keith ; Nishi, Toru ; del Giglio, Auro ; Moser, Richard P. ; Levin, Victor A. ; Saya, Hideyuki. / Detection of p53 alterations in human astrocytomas using frozen tissue sections for the polymerase chain reaction. In: Journal of Neuro-Oncology. 1993 ; Vol. 16, No. 2. pp. 125-133.
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