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Loss of Sirtuin 6 in osteoblast lineage cells activates osteoclasts, resulting in osteopenia

DC Field Value Language
dc.contributor.author김성진-
dc.contributor.author문석준-
dc.contributor.author서정택-
dc.contributor.author황충주-
dc.date.accessioned2020-12-01T16:47:02Z-
dc.date.available2020-12-01T16:47:02Z-
dc.date.issued2020-09-
dc.identifier.issn8756-3282-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/179971-
dc.description.abstractAdult bone homeostasis requires a fine-tuned balance between the activity of osteoblasts and osteoclasts. This osteoblast-osteoclast coupling is therapeutically important because it limits the efficacy of most anabolic or anti-resorptive treatments for osteoporosis. Sirtuin6 (SIRT6), a histone deacetylase, was implicated recently as an important regulator in bone homeostasis, but its in vivo function in osteoblast lineage cells remains unclear, mainly due to a lack of in vivo experiments with osteoblast lineage-specific Sirt6 knockout mice. Here, we show that Sirt6 in mature osteoblasts and/or osteocytes inhibits osteoclastogenesis via a paracrine mechanism. We found that osteoblast/osteocyte-specific Sirt6 knockout mice show reduced bone mass due to increased osteoclast formation. Mechanistically, we attribute this increased osteoclastogenesis to decreased osteoprotegerin expression in Sirt6-null osteoblasts and osteocytes. This loss of Sirt6 in osteoblasts and osteocytes does not, however, alter bone formation parameters in vivo. It does accelerate osteogenic differentiation in ex vivo culture, indicating that the osteoblast/osteocyte-autonomous functions of SIRT6 have minor effects on the osteopenic phenotype. These results establish a critical role for SIRT6 in mature osteoblasts and osteocytes in adult bone homeostasis as a negative paracrine regulator of osteoclastogenesis.-
dc.description.statementOfResponsibilityrestriction-
dc.languageEnglish-
dc.publisherElsevier Science-
dc.relation.isPartOfBONE-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.titleLoss of Sirtuin 6 in osteoblast lineage cells activates osteoclasts, resulting in osteopenia-
dc.typeArticle-
dc.contributor.collegeCollege of Dentistry (치과대학)-
dc.contributor.departmentOthers-
dc.contributor.googleauthorSung-Jin Kim-
dc.contributor.googleauthorYongxu Piao-
dc.contributor.googleauthorMoon Geon Lee-
dc.contributor.googleauthorA Ruem Han-
dc.contributor.googleauthorKyoungeun Kim-
dc.contributor.googleauthorChung-Ju Hwang-
dc.contributor.googleauthorJeong Taeg Seo-
dc.contributor.googleauthorSeok Jun Moon-
dc.identifier.doi10.1016/j.bone.2020.115497-
dc.contributor.localIdA00586-
dc.contributor.localIdA01358-
dc.contributor.localIdA01905-
dc.contributor.localIdA04492-
dc.relation.journalcodeJ00381-
dc.identifier.eissn1873-2763-
dc.identifier.pmid32599221-
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S8756328220302775-
dc.subject.keywordHigh turnover osteopenia-
dc.subject.keywordOsteoblast-
dc.subject.keywordOsteoclast-
dc.subject.keywordSirtuin 6-
dc.contributor.alternativeNameKim, Sung Jin-
dc.contributor.affiliatedAuthor김성진-
dc.contributor.affiliatedAuthor문석준-
dc.contributor.affiliatedAuthor서정택-
dc.contributor.affiliatedAuthor황충주-
dc.citation.volume138-
dc.citation.startPage115497-
dc.identifier.bibliographicCitationBONE, Vol.138 : 115497, 2020-09-
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Others (기타) > 1. Journal Papers

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