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Apoptosis: Difference between revisions
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adding type of Programmed cell death (PCD) (autophagy) and inserting references
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'''Apoptosis''', programmed [[cell]] death, is a hot issue to biologists and scientists. It occurs in multicellular organisms with active process. Apoptosis occurs by cell shrinkage, protein fragmentation, chromatin condensation, [[DNA]] degradation and collapse of cell. [http://www.nature.com/nature/insights/6805.html] | '''Apoptosis''', programmed [[cell]] death, is a hot issue to biologists and scientists. It occurs in multicellular organisms with active process. Apoptosis occurs by cell shrinkage, protein fragmentation, chromatin condensation, [[DNA]] degradation and collapse of cell. [http://www.nature.com/nature/insights/6805.html] | ||
Cells die in | Cells die in three different ways: apoptosis, autophagy and necrosis.<ref>{{cite journal|author=Giorgi C; Romagnoli A; Pinton P; Rizzuto R.|title=Ca2+ signaling, mitochondria and cell death|journal=Curr Mol Med|year=2008|month=Mar|volume=8|issue=2|pages=119-30|pmid=18336292|issn=1566-5240|url=http://endif.unife.it/dipartimento/medicina-sperimentale-diagnostica/sezioni-centri/sezione-di-patologia-generale/signaltransductionlab/publications/55.pdf}}</ref> Apoptosis and necrosis can be similar, but they are very different. Apoptosis is controlled process for number of cells, but necrosis is dying cells by swelling and bursting. Unlikely necrosis, apoptosis is integral process. Body weight is balanced, body, body shape, separating digits, and making right neuronal connections occur by apoptosis. [http://www.scq.ubc.ca/?p=350] | ||
Apoptosis has two pathways: extrinsic and intrinsic. Extrinsic pathways deliver apoptotic messages, and intrinsic pathways transmit death signals. [http://www.apoptosisworld.com/] | Apoptosis has two pathways: extrinsic and intrinsic. Extrinsic pathways deliver apoptotic messages, and intrinsic pathways transmit death signals. [http://www.apoptosisworld.com/] | ||
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Apoptosis is an important process in that it prevents diseases and controls unnecessary cells within the body. When cells are damaged, apoptosis occurs and the cells die. If apoptosis does not occur, the damaged cells will be nutrients to other organisms. Later these organisms will grow and become diseases. Therefore, apoptosis is integral process in immune system. Apoptosis prevents cancer. When apoptosis does not occur well, the cells divide and develop more cells. Later those cells will be cancer or diseases. [http://en.wikipedia.org/wiki/Apoptosis] | Apoptosis is an important process in that it prevents diseases and controls unnecessary cells within the body. When cells are damaged, apoptosis occurs and the cells die. If apoptosis does not occur, the damaged cells will be nutrients to other organisms. Later these organisms will grow and become diseases. Therefore, apoptosis is integral process in immune system. Apoptosis prevents cancer. When apoptosis does not occur well, the cells divide and develop more cells. Later those cells will be cancer or diseases. [http://en.wikipedia.org/wiki/Apoptosis] | ||
== References == | |||
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== Related References == | == Related References == | ||
