Abstract:
BACKGROUND/PURPOSE:It remains unclear what role curcumin plays in the autophagy of osteoclast precursors (OCPs) during osteoclastogenesis, since some researchers found that curcumin has the ability to inhibit osteoclastogenesis. While others have considered it as an autophagy activator. This study aimed to determine the effect of curcumin-regulated autophagy on osteoclastogenesis. RESULTS:The results revealed that direct administration of curcumin enhanced the OCP autophagy response in bone marrow-derived macrophages (BMMs). Curcumin could also abate RANKL's stimulatory effect on OCP autophagy and osteoclastogenesis. Autophagic suppression related to pharmacological inhibitors or gene silencing could further enhance the inhibitory effect of curcumin on osteoclastogenesis. As expected, curcumin ameliorated ovariectomy (OVX)-induced bone loss and its effect could be promoted by an autophagy inhibitor (chloroquine). CONCLUSIONS:In conclusion, curcumin can directly enhance the autophagic activity of OCPs, which inhibits its anti-osteoclastogeneic effects. Autophagy inhibition-based drugs are expected to enhance curcumin's efficacy in treating osteoporosis.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Ke D,Wang Y,Yu Y,Wang Y,Zheng W,Fu X,Han J,Zhang G,Xu Jdoi
10.1016/j.mce.2019.110637subject
Has Abstractpub_date
2020-01-15 00:00:00pages
110637eissn
0303-7207issn
1872-8057pii
S0303-7207(19)30339-9journal_volume
500pub_type
杂志文章abstract::The ovulatory process is characterized by tissue wounding and, after oocyte expulsion, by healing being connected to the formation of a corpus luteum (CL). The ovulatory event thus compares with a sterile inflammation. The concept is forwarded that the ovulatory process depends on innate immunity (INIM) function. The ...
journal_title:Molecular and cellular endocrinology
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journal_title:Molecular and cellular endocrinology
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journal_title:Molecular and cellular endocrinology
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journal_title:Molecular and cellular endocrinology
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journal_title:Molecular and cellular endocrinology
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doi:10.1016/j.mce.2009.06.009
更新日期:2010-01-27 00:00:00