{"title":"Pathogenic mechanisms of glucocorticoid-induced osteoporosis","authors":"Meng Chen , Wenyu Fu , Huiyun Xu , Chuan-ju Liu","doi":"10.1016/j.cytogfr.2023.03.002","DOIUrl":null,"url":null,"abstract":"<div><p><span><span><span>Glucocorticoid<span><span> (GC) is one of the most prescribed medicines to treat various inflammatory and autoimmune diseases. However, high doses and long-term use of GCs lead to multiple adverse effects, particularly glucocorticoid-induced osteoporosis (GIO). Excessive GCs exert detrimental effects on bone cells, including </span>osteoblasts, </span></span>osteoclasts, and </span>osteocytes, leading to impaired bone formation and resorption. The actions of exogenous GCs are considered to be strongly cell-type and dose dependent. GC excess inhibits the proliferation and differentiation of osteoblasts and enhances the </span>apoptosis<span><span> of osteoblasts and osteocytes, eventually contributing to reduced bone formation. Effects of GC excess on osteoclasts mainly include enhanced osteoclastogenesis, increased lifespan and number of mature osteoclasts, and diminished osteoclast apoptosis, which result in increased </span>bone resorption. Furthermore, GCs have an impact on the secretion of bone cells, subsequently disturbing the process of osteoblastogenesis and osteoclastogenesis. This review provides timely update and summary of recent discoveries in the field of GIO, with a particular focus on the effects of exogenous GCs on bone cells and the crosstalk among them under GC excess.</span></p></div>","PeriodicalId":11132,"journal":{"name":"Cytokine & Growth Factor Reviews","volume":null,"pages":null},"PeriodicalIF":9.3000,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10518688/pdf/","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cytokine & Growth Factor Reviews","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359610123000114","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
引用次数: 6
Abstract
Glucocorticoid (GC) is one of the most prescribed medicines to treat various inflammatory and autoimmune diseases. However, high doses and long-term use of GCs lead to multiple adverse effects, particularly glucocorticoid-induced osteoporosis (GIO). Excessive GCs exert detrimental effects on bone cells, including osteoblasts, osteoclasts, and osteocytes, leading to impaired bone formation and resorption. The actions of exogenous GCs are considered to be strongly cell-type and dose dependent. GC excess inhibits the proliferation and differentiation of osteoblasts and enhances the apoptosis of osteoblasts and osteocytes, eventually contributing to reduced bone formation. Effects of GC excess on osteoclasts mainly include enhanced osteoclastogenesis, increased lifespan and number of mature osteoclasts, and diminished osteoclast apoptosis, which result in increased bone resorption. Furthermore, GCs have an impact on the secretion of bone cells, subsequently disturbing the process of osteoblastogenesis and osteoclastogenesis. This review provides timely update and summary of recent discoveries in the field of GIO, with a particular focus on the effects of exogenous GCs on bone cells and the crosstalk among them under GC excess.
期刊介绍:
Cytokine & Growth Factor Reviews is a leading publication that focuses on the dynamic fields of growth factor and cytokine research. Our journal offers a platform for authors to disseminate thought-provoking articles such as critical reviews, state-of-the-art reviews, letters to the editor, and meeting reviews.
We aim to cover important breakthroughs in these rapidly evolving areas, providing valuable insights into the multidisciplinary significance of cytokines and growth factors. Our journal spans various domains including signal transduction, cell growth and differentiation, embryonic development, immunology, tumorigenesis, and clinical medicine.
By publishing cutting-edge research and analysis, we aim to influence the way researchers and experts perceive and understand growth factors and cytokines. We encourage novel expressions of ideas and innovative approaches to organizing content, fostering a stimulating environment for knowledge exchange and scientific advancement.