Cancer fall '08

Cancer fall 08

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Unformatted text preview: Cancer Cancer Diseases caused by out of control cell cycles Diseases i.e. a failure of genetic control Cancers Are essentially normal cells gone bad Are Everyone has had them; 40% will develop Each a different disease No cancer is 100% fatal A person can inherit cells predisposed to person express cancer express 2nd to heart diseases as USA killer Definition A class of genetic diseases class – 100’s 100’s Characterized by Characterized Uncontrolled cell life cycle Continuous and uncontrolled cell division – Mutations Mutations AND the ability to spread AND It is a failure of the mechanisms controlling the growth of the body’s own cells Eukaryotic Cell Cycle Eukaryotic 2 parts 1. Interphase 2. Mitotic cell Mitotic division division Cell cycle control system Cell Necessary for successful cell reproduction Cycle checkpoints (many) – Big 3 Apoptosis Apoptosis Programmed cell Programmed death death – Cell & DNA fragments Cell via sequence of events events Occurs all the time Helps keep # of body Helps cells at proper level cells Prevents tumors from Prevents developing developing Cell cycle control system Cell Necessary for successful cell reproduction Cycle checkpoints (many) – Big 3 G1 checkpoint – Check for DNA damage>>p53 protein>>apoptosis G2 checkpoint – Check for DNA replication – 2nd check for DNA damage M checkpoint – C...
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This note was uploaded on 06/02/2011 for the course BIOL 110 taught by Professor Duwel during the Fall '08 term at South Carolina.

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