A putative oncogenic role for MPP11 in head and neck squamous cell cancer

Vicente Resto, O. L. Caballero, M. R. Buta, W. H. Westra, L. Wu, J. M. Westendorf, J. Jen, P. Hieter, D. Sidransky

Research output: Contribution to journalArticle

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Abstract

Genetic alterations of chromosome 7 are common in human cancer. Furthermore, previous studies have supported the presence of a gene important in a broad range of cancers at 7q22-31.1. There is evidence that supports an oncogenic function for this putative gene, as well as evidence that supports a tumor suppressive role. In this study, we used a cross-species candidate gene approach in combination with physical mapping to identify MPP11 as a candidate for the putative cancer-related activity at 7q22-31.1. We then analyzed primary head and neck squamous cell tumors (HNSCCs) for loss of heterozygosity/allelic imbalance (LOH/AI) at the MPP11 genomic locus. Thirty-eight percent of tumors examined displayed LOH/AI involving the MPP11 genomic locus. Mutation analysis of MPP11 in the latter samples did not identify any inactivating mutations. However, immunohistochemical staining of primary tumor sections and Western blot analysis of HNSCC cell lines revealed a tumor-specific high level of expression of MPP11p. Fluorescence in situ hybridization analysis done on the cell lines identified increased chromosome 7 copy number with a concomitant increase in MPP11 copy number. These results suggest an oncogenic role for MPP11 in HNSCC.

Original languageEnglish (US)
Pages (from-to)5529-5535
Number of pages7
JournalCancer Research
Volume60
Issue number19
StatePublished - Oct 1 2000
Externally publishedYes

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Squamous Cell Neoplasms
Head and Neck Neoplasms
Head
Neoplasms
Allelic Imbalance
Chromosomes, Human, Pair 7
Loss of Heterozygosity
Genes
Cell Line
Mutation
Fluorescence In Situ Hybridization
Neck
Western Blotting
Epithelial Cells
Staining and Labeling

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Resto, V., Caballero, O. L., Buta, M. R., Westra, W. H., Wu, L., Westendorf, J. M., ... Sidransky, D. (2000). A putative oncogenic role for MPP11 in head and neck squamous cell cancer. Cancer Research, 60(19), 5529-5535.

A putative oncogenic role for MPP11 in head and neck squamous cell cancer. / Resto, Vicente; Caballero, O. L.; Buta, M. R.; Westra, W. H.; Wu, L.; Westendorf, J. M.; Jen, J.; Hieter, P.; Sidransky, D.

In: Cancer Research, Vol. 60, No. 19, 01.10.2000, p. 5529-5535.

Research output: Contribution to journalArticle

Resto, V, Caballero, OL, Buta, MR, Westra, WH, Wu, L, Westendorf, JM, Jen, J, Hieter, P & Sidransky, D 2000, 'A putative oncogenic role for MPP11 in head and neck squamous cell cancer', Cancer Research, vol. 60, no. 19, pp. 5529-5535.
Resto V, Caballero OL, Buta MR, Westra WH, Wu L, Westendorf JM et al. A putative oncogenic role for MPP11 in head and neck squamous cell cancer. Cancer Research. 2000 Oct 1;60(19):5529-5535.
Resto, Vicente ; Caballero, O. L. ; Buta, M. R. ; Westra, W. H. ; Wu, L. ; Westendorf, J. M. ; Jen, J. ; Hieter, P. ; Sidransky, D. / A putative oncogenic role for MPP11 in head and neck squamous cell cancer. In: Cancer Research. 2000 ; Vol. 60, No. 19. pp. 5529-5535.
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