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Cellular Anastasis
Anastasis is a cellular phenomenon characterized by recovery of cells threatened by cell death; it essentially reverses the process of programmed cell death, or apoptosis. Contrary to the prior assumption that apoptosis is irreversible, some cells have been discovered to resist the stimuli that trigger apoptosis. Some of these cells can survive even following the activation of Caspase#Apoptosis, executioner caspases, forming the basis of anastasis. The initial phase of recovery begins when Transcription (biology), transcription is initiated and the cell recovers from previous stressors. Finally, the cell's cytoskeleton undergoes reorganization, reinforcing its structure and encouraging Cell migration, migration. The relatively recent discovery of anastasis is a key factor in the survival of cancer cells exposed to chemotherapy and changed the way scientists approach the topic of cell death. Anastasis is possible even during advanced stages of cell death, leading researchers to believe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell Death
Cell death is the event of a biological cell ceasing to carry out its functions. This may be the result of the natural process of old cells dying and being replaced by new ones, as in programmed cell death, or may result from factors such as diseases, localized injury, or the death of the organism of which the cells are part. Apoptosis or Type I cell-death, and Autophagy (cellular), autophagy or Type II cell-death are both forms of programmed cell death, while necrosis is a non-physiological process that occurs as a result of infection or injury. The term "cell necrobiology" has been used to describe the life processes associated with morphological, biochemical, and molecular changes which predispose, precede, and accompany cell death, as well as the consequences and tissue response to cell death. The word is derived from the Greek language, Greek νεκρό meaning "death", βìο meaning "life", and logos, λόγος meaning "the study of". The term was initially coined to bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
