牙体牙髓牙周病学杂志
牙體牙髓牙週病學雜誌
아체아수아주병학잡지
CHINESE JOURNAL OF CONSERVATIVE DENTISTRY
2015年
5期
263-269
,共7页
杨邁%胡成虎%张少锋%金岩
楊邁%鬍成虎%張少鋒%金巖
양매%호성호%장소봉%금암
SAMP6小鼠%骨髓间充质干细胞(BMMSCs)%线粒体呼吸链复合体
SAMP6小鼠%骨髓間充質榦細胞(BMMSCs)%線粒體呼吸鏈複閤體
SAMP6소서%골수간충질간세포(BMMSCs)%선립체호흡련복합체
SAMP6 mice%bone marrow mesenchymal stem cells(BMMSCs)%mitochondrial respiration chain
目的:研究自发性老年性骨质疏松模型SAMP6小鼠骨髓间充质干细胞(BMMSCs)的衰老状态、分化功能及线粒体呼吸链复合体活性。方法:分离培养SAMP6及其对照品系SAMR1小鼠BMMSCs,分别以实时定量PCR(RT-PCR)、Western Blot及细胞染色的方法,检测衰老、分化相关指标,并分别检测线粒体呼吸链复合体活性及复合体相关基因的表达。结果:与对照品系SAMR1小鼠相比,SAMP6小鼠BMMSCs的衰老相关基因、蛋白水平及β-gal染色阳性率显著升高(P<0.05);成骨分化相关基因、蛋白水平及茜素红染色阳性率显著降低(P<0.05);线粒体呼吸链复合体Ⅰ和Ⅲ活性显著降低,且呼吸链复合体相关基因表达亦降低(P<0.05)。结论:SAMP6小鼠BMMSCs存在细胞衰老及成骨分化功能障碍,其线粒体呼吸链复合体功能显著下降。
目的:研究自髮性老年性骨質疏鬆模型SAMP6小鼠骨髓間充質榦細胞(BMMSCs)的衰老狀態、分化功能及線粒體呼吸鏈複閤體活性。方法:分離培養SAMP6及其對照品繫SAMR1小鼠BMMSCs,分彆以實時定量PCR(RT-PCR)、Western Blot及細胞染色的方法,檢測衰老、分化相關指標,併分彆檢測線粒體呼吸鏈複閤體活性及複閤體相關基因的錶達。結果:與對照品繫SAMR1小鼠相比,SAMP6小鼠BMMSCs的衰老相關基因、蛋白水平及β-gal染色暘性率顯著升高(P<0.05);成骨分化相關基因、蛋白水平及茜素紅染色暘性率顯著降低(P<0.05);線粒體呼吸鏈複閤體Ⅰ和Ⅲ活性顯著降低,且呼吸鏈複閤體相關基因錶達亦降低(P<0.05)。結論:SAMP6小鼠BMMSCs存在細胞衰老及成骨分化功能障礙,其線粒體呼吸鏈複閤體功能顯著下降。
목적:연구자발성노년성골질소송모형SAMP6소서골수간충질간세포(BMMSCs)적쇠로상태、분화공능급선립체호흡련복합체활성。방법:분리배양SAMP6급기대조품계SAMR1소서BMMSCs,분별이실시정량PCR(RT-PCR)、Western Blot급세포염색적방법,검측쇠로、분화상관지표,병분별검측선립체호흡련복합체활성급복합체상관기인적표체。결과:여대조품계SAMR1소서상비,SAMP6소서BMMSCs적쇠로상관기인、단백수평급β-gal염색양성솔현저승고(P<0.05);성골분화상관기인、단백수평급천소홍염색양성솔현저강저(P<0.05);선립체호흡련복합체Ⅰ화Ⅲ활성현저강저,차호흡련복합체상관기인표체역강저(P<0.05)。결론:SAMP6소서BMMSCs존재세포쇠로급성골분화공능장애,기선립체호흡련복합체공능현저하강。
AIM:To detect senescence condition,osteogenic differentiation ability and the activity of mito-chondrial respiration chain complex of bone marrow mesenchymal stem cells (BMMSCs)from senescence accelerated mouse strain prone 6 (SAMP6).METHODS:BMMSCs of SAMP6 and its control strain SAMR1 mice were isolated and cultured.The cell senescence and osteogenic differentiation ability were detected by RT-PCR,Western Blot and cell staining respectively.The function of mitochondrial respiration complex was examined by activity assay and related gene expression assay.RESULTS:Compared with control strain SAMR1 ,BMMSCs of SAMP6 BMMSCs of SAMP6 performed increase of cellular senescence ce related genes and protein level,increase ofβ-gal positive cell ratio(P<0.05),and decline of osteogenic function(P<0.05),.CONCLUSION:BMMSCs from SAMP6 perform senescence and osteogenic differentiation dysfunction with significant decline of mitochondrial respiration chain complex.