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Accumulation of wild-type p53 in meningiomas

Lookup NU author(s): Professor David Ellison, Professor John LunecORCiD, Dr Evelyn Jaros

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Abstract

The p53 tumour suppressor gene contributes to the regulation of DNA repair and the initiation of apoptosis. Mutations of this gene and nuclear accumulation of its protein product are features of a large variety of tumours. A histological spectrum of meningiomas, including anaplastic examples and a meningosarcoma, was analysed for accumulation of the p53 protein and mutations in exons 4-9 of the p53 gene. No mutations were found, but 9/34 (26%) tumours showed accumulation of the p53 protein. The p53-positive meningiomas came from across the histological spectrum and were not restricted to the anaplastic group, The accumulation of wild-type p53 in a proportion of meningiomas may reflect this gene's role in DNA repair, or its enhanced stability when bound to cellular proteins such as the mdm-2 gene product.

Publication metadata

Author(s): Ellison, D.W., Lunec, J., Gallagher, P.J., Steart, P.V., Jaros, E.A.B., Gatter, K.C.

Publication type: Article

Publication status: Unknown

Journal: Neuropathology and Applied Neurobiology

Year: 1995

Volume: 21

Issue: 2

Pages: 136-142

Print publication date: 01/04/1995

ISSN (print): 0305-1846

ISSN (electronic): 1365-2990

URL: http://dx.doi.org/10.1111/j.1365-2990.1995.tb01040.x

DOI: 10.1111/j.1365-2990.1995.tb01040.x

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