Critical Reviews in Oral Biology & Medicine, Vol 10, 58-78, Copyright © 1999 by International & American Associations for Dental Research

ARTICLES

Proliferative and apoptotic responses in cancers with special reference to oral cancer

A. R. Kamer, L. Krebs, S. A. Hoghooghi and C. Liebow
Department of Oral and Maxillofacial Surgery, School of Dental Medicine, State University of New York at Buffalo, 14214, USA.

The study of signal transduction pathways for mechanisms of apoptosis and proliferation has significantly advanced our understanding of human cancer, subsequently leading to more effective treatments. Discoveries of growth factors and oncogenes, especially those that function through phosphorylation on tyrosine residues, have greatly benefited our appreciation of the biology of cancer. The regulation of proliferation and apoptosis through phosphorylation via tyrosine kinases and phosphatases is discussed, as well as the contributions of other systems, such as serine and threonine kinases and phosphatases. Receptors with seven-transmembrane domains, steroid hormones, genes, and "death domains" will also be discussed. This review attempts to compare the regulation of the growth of normal tissues and cancers with an effort to highlight the current knowledge of these factors in the growth regulation of oral/oropharyngeal cancers. Despite the strides made in our understanding of growth regulation in human cancers, the study of oral/oropharyngeal cancer specifically lags behind. More research must be done to further our understanding of oral cancer biology, if we are to develop better, more effective treatment protocols.

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