Mr. Nam Vo Ho Chi Minh, Ho Chi Minh City | Vietnam
Curr Mol Biol Rep 2018 Dec 25;4(4):180-190. Epub 2018 Oct 25.
Department of Orthopedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA.
Purpose: Age is a major risk factor for multiple disease pathologies, including chronic back pain, which stems from age-related degenerative changes to intervertebral disc tissue. Growing evidence suggest that the change in phenotype of disc cells to a senescent phenotype may be one of the major driving forces of age-associated disc degeneration. This review discusses the known stressors that promote development of senescence in disc tissue and the underlying molecular mechanisms disc cells adopt to enable their transition to a senescent phenotype.
Recent Findings: Increased number of senescent cells have been observed with advancing age and degeneration in disc tissue. Additionally, studies have confirmed the catabolic nature of stress-induced senescent disc cells. Several factors have been shown to establish senescence via multiple different underlying mechanisms.
Summary: Cellular senescence can serve as a therapeutic target to combat age-associated disc degeneration. However, whether the different stressors utilizing different signaling networks establish different kinds of senescent types in disc cells is currently unknown and warrants further investigation.
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