Cellular Senescence in Postmitotic Cells: Beyond Growth Arrest - PubMed (original) (raw)
Review
. 2018 Aug;28(8):595-607.
doi: 10.1016/j.tcb.2018.03.003. Epub 2018 Apr 25.
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- PMID: 29704982
- DOI: 10.1016/j.tcb.2018.03.003
Review
Cellular Senescence in Postmitotic Cells: Beyond Growth Arrest
Przemyslaw Sapieha et al. Trends Cell Biol. 2018 Aug.
Abstract
In mitotic cells, cellular senescence is a permanent state of G1 arrest, that may have evolved in parallel to apoptosis, to limit proliferation of damaged cells and oncogenesis. Recent studies have suggested that postmitotic cells are also capable of entering a state of senescence, although the repercussions of postmitotic cellular senescence (PoMiCS) on tissue health and function are currently ill-defined. In tissues made largely of post-mitotic cells, it is evolutionary advantageous to preserve cellular integrity and cellular senescence of post-mitotic cells may prevent stressor-induced tissue degeneration and promote tissue repair. Paradoxically, PoMiCS may also contribute to disease progression through the generation of inflammatory mediators, termed the senescence-associated secretory phenotype. Here, we discuss the potential roles of PoMiCS and propose to enlarge the current definition of cellular senescence to postmitotic terminally differentiated cells.
Keywords: CNS; Cellular senescence; adipose tissue; inflammation; postmitotic; reprogramming.
Copyright © 2018 Elsevier Ltd. All rights reserved.
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