Mts1/cdk4i is altered in cell lines derived from primary and metastatic oral squamous cell carcinoma

William Andrew Yeudall, Rosalynn Y. Crawford, John Ensley, Keith Robbins

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

The MTS1/CDK4I gene encodes a 16 kDa cyclin kinase inhibitor and maps to chromosome 9p21. Previous studies have suggested the presence of a major tumour suppressor gene at this locus which may be inactivated in head and neck squamous cell carcinoma (HNSCC). To determine the status of this gene in human primary and metastatic HNSCC, we examined the locus and its transcript for abnormalities by polyroerase chain reaction (PCR). Out of 14 cell lines studied, four had lost only exon 1, one had lost only exon 2, three had lost both exons 1 and 2, and none of the remaining six lines expressed a normal pl6 mRNA. These latter six cell lines expressed pl6 transcripts that had suffered deletions ranging in size from 2-16 base pairs. In each case, deletionsled to a change of reading frame. Furthermore, in two cases abnormalities in the MTS1/CDK4I gene were identical in cells derived from metastatic tumours as compared to cells derived independently from the corresponding primary tumour. The identical nature of mutations observed in primary tumours and metastases derived from the same patient provides strong evidence thatinactivation of pl6 function was an in vivo event Introduction Mutations affecting genes whose

Original languageEnglish (US)
Pages (from-to)2683-2686
Number of pages4
JournalCarcinogenesis
Volume15
Issue number12
DOIs
StatePublished - Dec 1 1994
Externally publishedYes

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p16 Genes
Squamous Cell Carcinoma
Exons
Cell Line
Reading Frames
Neoplasms
Mutation
Cyclins
Tumor Suppressor Genes
Base Pairing
Genes
Phosphotransferases
Chromosomes
Neoplasm Metastasis
Messenger RNA
Carcinoma, squamous cell of head and neck

ASJC Scopus subject areas

  • Cancer Research

Cite this

Mts1/cdk4i is altered in cell lines derived from primary and metastatic oral squamous cell carcinoma. / Yeudall, William Andrew; Crawford, Rosalynn Y.; Ensley, John; Robbins, Keith.

In: Carcinogenesis, Vol. 15, No. 12, 01.12.1994, p. 2683-2686.

Research output: Contribution to journalArticle

Yeudall, William Andrew ; Crawford, Rosalynn Y. ; Ensley, John ; Robbins, Keith. / Mts1/cdk4i is altered in cell lines derived from primary and metastatic oral squamous cell carcinoma. In: Carcinogenesis. 1994 ; Vol. 15, No. 12. pp. 2683-2686.
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