The cell cycle and cancer Biology Diagrams

The cell cycle and cancer Biology Diagrams Because of their recessive nature in cell cycle control and the fact that some of them are mutated in human tumors, it has been suggested that they may also function as tumor suppressor genes. It appears that the molecular networking of these proteins and complexes impact on two fundamental cell cycle regulators: p53 and pRB. Cell cycle deregulation associated with cancer occurs through mutation of proteins important at different levels of the cell cycle. In cancer, mutations have been observed in genes encoding CDK, cyclins, CDK‐activating synthesis of peptides mimicking the effects of CKI, decrease of cyclin levels, modulation of the proteasomal machinery

Mutations in this domain have shown to affect the catalytic activity of the protein and protein stability . Its impact on cell cycle regulation and ability to influence tumor cell proliferation is evidenced by the observation that its inhibition induces cell senescence . The clinical significance of KAT6A in breast cancer is evaluated by Cancer-associated mutations that perturb cell cycle control allow continuous cell division chiefly by compromising the ability of cells to exit the cell cycle. mainly owing to adverse effects

The cell cycle: a review of regulation, deregulation and therapeutic ... Biology Diagrams

Different impacts of TP53 mutations on cell cycle-related gene expression among cancer types. Keiju Sasaki 1,2, Shin Takahashi 1, Kota Ouchi 1,2, Yasufumi Otsuki 1,2, It appears that the molecular networking of these proteins and complexes impact on two fundamental cell cycle regulators: p53 and pRB. Cross-talk pathways between these two nuclear proteins are being delineated, implying potential links between p53 and pRB in cell cycle control, apoptosis, and tumor progression. The insights provided by characterization of the Cdc2/cyclin B complex have thus had a sweeping impact on understanding cell cycle regulation. For example, mutations resulting in continual unregulated expression of cyclin D1 contribute to the development of a variety of human cancers, including lymphomas and breast cancers. Similarly

Changes in the expression of cell cycle-related genes and MKI67 by TP53 mutations were greater in cluster A1 than in cluster A2. There was no distinct difference in the effects between GOF and non-GOF mutations on the gene expression profile of the p53 signaling pathway.