Abstract：
:BACKGROUND The imbalance between bone resorption and formation is the basic mechanism underlying osteoporosis in the elderly. Osteogenesis is the differentiation of human mesenchymal stem cells (hMSCs) into osteoblasts. Sirtuin6 (SIRT6) regulates various biological functions, including differentiation. Transient receptor potential cation channel subfamily V member 1 (TRPV1) is a non-selective cation channel that can be activated by physical and chemical stimulation. However, experimental data supporting the role of SIRT6 in osteogenic differentiation (OD) of hMSCs are lacking. MATERIAL AND METHODS Differentiation of hMSCs was induced. The expressions of SIRT6, TRPV1, and CGRP were detected by Q-PCR, Western blot, and ELISA, respectively. SIRT6 was overexpressed in hMSCs by transfection. ALP activity and Alizarin Red staining were utilized to detect the effect of SIRT6 on hMSC OD. Then, capsaicin and capsazepine, the TRPV1 agonist and antagonist, respectively, were administrated to assess the role of TRPV1. RESULTS SIRT6 expression was downregulated during hMSC differentiation. SIRT6 overexpression was accompanied by reduced expression of specific genes and alkaline phosphatase (ALP) activity in osteoblasts. Furthermore, TRPV1 channel was also reduced by SIRT6 overexpression via ubiquitinating TRPV1. Capsaicin was utilized in SIRT6-overexpressed cells. Capsaicin therapy counteracted the effect of SIRT6 overexpression on OD, and markedly decreased OD. CONCLUSIONS The SIRT6-TRPV1-CGRP signal axis is the key to regulating OD in hMSCs, which could be a potential therapeutic target for osteoporosis and bone loss-related diseases.
journal_name
Med Sci Monitjournal_title
Medical science monitor : international medical journal of experimental and clinical researchauthors
Xiao F,Zhou Y,Liu Y,Xie M,Guo Gdoi
10.12659/MSM.917118subject
Has Abstractpub_date
2019-11-08 00:00:00pages
8412-8421eissn
1234-1010issn
1643-3750pii
917118journal_volume
25pub_type
杂志文章abstract：:BACKGROUND Inappropriate use of antibiotics results in antimicrobial resistance and dysbacteriosis. Among critically ill cirrhotic patients, consensus regarding the most optimal prescription strategy for antibiotics use has not been achieved. For these patients, the score for end-stage liver disease (MELD) demonstrate...
journal_title：Medical science monitor : international medical journal of experimental and clinical research
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更新日期：2019-07-06 00:00:00
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章
doi：
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
pub_type： 杂志文章,meta分析
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：
更新日期：2000-09-01 00:00:00
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：
更新日期：2006-03-01 00:00:00
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doi：
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：
更新日期：2000-03-01 00:00:00
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journal_title：Medical science monitor : international medical journal of experimental and clinical research
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doi：
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