Targeting Cell Senescence for the Treatment of Age-Related Bone Loss

Overview

Journal Curr Osteoporos Rep

Publisher Current Science

Specialties Endocrinology
Orthopedics

Date 2019 Feb 27

PMID 30806947

Citations 22

Authors

Robert J Pignolo

Rebekah M Samsonraj

Susan F Law

Haitao Wang

Abhishek Chandra

Affiliations

Soon will be listed here.

Abstract

Purpose Of Review: We review cell senescence in the context of age-related bone loss by broadly discussing aging mechanisms in bone, currently known inducers and markers of senescence, the senescence-associated secretory phenotype (SASP), and the emerging roles of senescence in bone homeostasis and pathology.

Recent Findings: Cellular senescence is a state of irreversible cell cycle arrest induced by insults or stressors including telomere attrition, oxidative stress, DNA damage, oncogene activation, and other intrinsic or extrinsic triggers and there is mounting evidence for the role of senescence in aging bone. Cellular aging also instigates a SASP that exerts detrimental paracrine and likely systemic effects. With aging, multiple cell types in the bone microenvironment become senescent, with osteocytes and myeloid cells as primary contributors to the SASP. Targeting undesired senescent cells may be a favorable strategy to promote bone anabolic and anti-resorptive functions in aging bone, with the possibility of improving bone quality and function with normal aging and/or disease.

Citing Articles

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