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Tumor Suppressor Genes

The Balancing Act Of Regulating The Cell Cycle



The cell cycle is a fundamental process of life, regulated by a balance of positive and negative mechanisms that act at key points during cell growth and differentiation. Proto-oncogenes tend to "push" the cell cycle (in a positively acting manner) by activating various cell cycle pathways within the developing cell. By contrast, tumor suppressor genes normally repress, or "put the brakes on," the activation of the pathways.



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Medicine EncyclopediaGenetics in Medicine - Part 4Tumor Suppressor Genes - The Balancing Act Of Regulating The Cell Cycle, Genetics Of Tumor Suppressor Genes, Generalized Tumor Suppressor Genes