Apoptosis: Difference between revisions

Apoptosis, programmed cell death, is hot issue to biologist 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]

Cell dies two different ways: apoptosis and necrosis.  Apoptosis and necrosis could 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 pathway delivers apoptotic message, and intrinsic pathway transmits death signals.  [http://www.apoptosisworld.com/]

Since 1990s, research on apoptosis becomes hot issue.  Apoptosis is defective process, so it might bring cancer, ischemic damage, and cell-lose disease.  Usually 50 billion to 70 billion cells die each day.  [http://en.wikipedia.org/wiki/Apoptosis]