Interactions of the p53 Protein Family in Cellular Stress Response in Gastrointestinal Tumors


Journal article


A. Vilgelm, M. Washington, Jinxiong Wei, Heidi Chen, V. Prassolov, A. Zaika
Molecular Cancer Therapeutics, 2010

Semantic Scholar DOI PubMed
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APA   Click to copy
Vilgelm, A., Washington, M., Wei, J., Chen, H., Prassolov, V., & Zaika, A. (2010). Interactions of the p53 Protein Family in Cellular Stress Response in Gastrointestinal Tumors. Molecular Cancer Therapeutics.


Chicago/Turabian   Click to copy
Vilgelm, A., M. Washington, Jinxiong Wei, Heidi Chen, V. Prassolov, and A. Zaika. “Interactions of the p53 Protein Family in Cellular Stress Response in Gastrointestinal Tumors.” Molecular Cancer Therapeutics (2010).


MLA   Click to copy
Vilgelm, A., et al. “Interactions of the p53 Protein Family in Cellular Stress Response in Gastrointestinal Tumors.” Molecular Cancer Therapeutics, 2010.


BibTeX   Click to copy

@article{a2010a,
  title = {Interactions of the p53 Protein Family in Cellular Stress Response in Gastrointestinal Tumors},
  year = {2010},
  journal = {Molecular Cancer Therapeutics},
  author = {Vilgelm, A. and Washington, M. and Wei, Jinxiong and Chen, Heidi and Prassolov, V. and Zaika, A.}
}

Abstract

p53, p63, and p73 are members of the p53 protein family involved in regulation of cell cycle, apoptosis, differentiation, and other critical cellular processes. Here, we investigated the contribution of the entire p53 family in chemotherapeutic drug response in gastrointestinal tumors. Real-time PCR and immunohistochemistry revealed complexity and variability of expression profiles of the p53 protein family. Using colon and esophageal cancer cells, we found that the integral transcription activity of the entire p53 family, as measured by the reporter analysis, associated with response to drug treatment in studied cells. We also found that p53 and p73, as well as p63 and p73, bind simultaneously to the promoters of p53 target genes. Taken together, our results support the view that the p53 protein family functions as an interacting network of proteins and show that cellular responses to chemotherapeutic drug treatment are determined by the total activity of the entire p53 family rather than p53 alone. Mol Cancer Ther; 9(3); 693–705


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