AIS is an oncogene amplified in squamous cell carcinoma

Kenji Hibi, Barry Trink, Meera Patturajan, William H. Westra, Otávia L. Caballero, David E. Hill, Edward A. Ratovitski, Jin Jen, David Sidransky

Research output: Contribution to journalArticle

422 Citations (Scopus)

Abstract

We and others recently isolated a human p53 homologue (p40/p51/p63/p73L) and localized the gene to the distal long arm of chromosome 3. Here we sought to examine the role of p40/p73L, two variants lacking the N-terminal transactivation domain, in cancer. Fluorescent in situ hybridization (FISH) analysis revealed frequent amplification of this gene locus in primary squamous cell carcinoma of the lung and head and neck cancer cell lines. (We named this locus AIS for amplified in squamous cell carcinoma.) Furthermore, amplification of the AIS locus was accompanied by RNA and protein overexpression of a variant p68(AIS) lacking the terminal transactivation domain. Protein overexpression in primary lung tumors was limited to squamous cell carcinoma and tumors known to harbor a high frequency of p53 mutations. Overexpression of p40(AIS) in Rat 1a cells led to an increase in soft agar growth and tumor size in mice. Our results support the idea that AIS plays an oncogenic role in human cancer.

Original languageEnglish (US)
Pages (from-to)5462-5467
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume97
Issue number10
DOIs
StatePublished - May 9 2000
Externally publishedYes

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Oncogenes
Squamous Cell Carcinoma
Neoplasms
Transcriptional Activation
Chromosomes, Human, Pair 3
Gene Amplification
Mutation Rate
Head and Neck Neoplasms
Fluorescence In Situ Hybridization
Agar
Lung Neoplasms
Proteins
RNA
Cell Line
Lung
Growth
Genes
adjuvant P40

Keywords

  • P63 tumor-suppressor gene

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Hibi, K., Trink, B., Patturajan, M., Westra, W. H., Caballero, O. L., Hill, D. E., ... Sidransky, D. (2000). AIS is an oncogene amplified in squamous cell carcinoma. Proceedings of the National Academy of Sciences of the United States of America, 97(10), 5462-5467. https://doi.org/10.1073/pnas.97.10.5462

AIS is an oncogene amplified in squamous cell carcinoma. / Hibi, Kenji; Trink, Barry; Patturajan, Meera; Westra, William H.; Caballero, Otávia L.; Hill, David E.; Ratovitski, Edward A.; Jen, Jin; Sidransky, David.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 97, No. 10, 09.05.2000, p. 5462-5467.

Research output: Contribution to journalArticle

Hibi, K, Trink, B, Patturajan, M, Westra, WH, Caballero, OL, Hill, DE, Ratovitski, EA, Jen, J & Sidransky, D 2000, 'AIS is an oncogene amplified in squamous cell carcinoma', Proceedings of the National Academy of Sciences of the United States of America, vol. 97, no. 10, pp. 5462-5467. https://doi.org/10.1073/pnas.97.10.5462
Hibi, Kenji ; Trink, Barry ; Patturajan, Meera ; Westra, William H. ; Caballero, Otávia L. ; Hill, David E. ; Ratovitski, Edward A. ; Jen, Jin ; Sidransky, David. / AIS is an oncogene amplified in squamous cell carcinoma. In: Proceedings of the National Academy of Sciences of the United States of America. 2000 ; Vol. 97, No. 10. pp. 5462-5467.
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