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Cell death

Overview of signal transduction pathways involved in apoptosis

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 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.[1]

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.[2] The word is derived from the Greek νεκρό meaning "death", βìο meaning "life", and λόγος meaning "the study of". The term was initially coined to broadly define investigations of the changes that accompany cell death, detected and measured by multiparameter flow- and laser scanning- cytometry.[3] It has been used to describe the real-time changes during cell death, detected by flow cytometry.[4]

  1. ^ Kierszenbaum A (2012). Histology and Cell Biology – An Introduction to Pathology. Philadelphia: Elsevier Saunders.
  2. ^ Nirmala JG, Lopus M (April 2020). "Cell death mechanisms in eukaryotes". Cell Biology and Toxicology. 36 (2): 145–164. doi:10.1007/s10565-019-09496-2. PMID 31820165.
  3. ^ Cite error: The named reference Darzynkiewicz_1997 was invoked but never defined (see the help page).
  4. ^ Warnes G, Martins S (March 2011). "Real-time flow cytometry for the kinetic analysis of oncosis". Cytometry. Part A. 79 (3): 181–191. doi:10.1002/cyto.a.21022. PMID 21254392. S2CID 11691981.

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