新疆医科大学学报
新疆醫科大學學報
신강의과대학학보
JOURNAL OF XINJIANG MEDICAL UNIVERSITY
2013年
10期
1437-1441
,共5页
结核分枝杆菌超声裂解物%破骨细胞%骨保护素(OPG)/核因子 Kappa B受体活化因子配基(RANKL)系统
結覈分枝桿菌超聲裂解物%破骨細胞%骨保護素(OPG)/覈因子 Kappa B受體活化因子配基(RANKL)繫統
결핵분지간균초성렬해물%파골세포%골보호소(OPG)/핵인자 Kappa B수체활화인자배기(RANKL)계통
Mycobacterium tuberculosis ultrasound lysate%osteoclasts%OPG/RANKL system
目的探讨结核分枝杆菌超声裂解产物(Mt sonicate)体外诱导小鼠破骨细胞的形成及 OPG/RANKL表达变化与裂解物的浓度、时间的依赖性,研究结核杆菌引起骨破坏的相关机制。方法原代培养的 BALB/c小鼠骨髓基质细胞以高、中、低浓度的 Mt sonicate进行干预,在1、3、7、14 d进行 TRAP染色,观察破骨细胞的形成,并采用 Realtime RT-PCR检测各浓度、时间的骨保护素(OPG)/核因子Kappa B受体活化因子配基(RANKL)mR-NA表达。结果 Mt sonicate在体外可诱导小鼠骨髓基质细胞向破骨细胞的转化;破骨细胞数量与 Mt sonicate浓度在3、7 d时呈显著的正相关(3 d:r=0.417,P <0.05;7 d:r=0.463,P <0.05);3个浓度干预下,破骨细胞数量在1~7 d逐渐增多,7~14 d则逐渐减少。7 d时,高、中、低浓度 Mt sonicate干预下 OPG/RANKL mRNA表达比分别为(1.35±0.11)、(7.38±1.15)、(9.85±1.26)。结论小鼠骨髓基质细胞向破骨细胞转化的实验中,存在结核分枝杆菌裂解物的浓度和时间依赖性,且与 OPG/RANKL mRNA的表达比呈负相关,破骨细胞形成时的数量与活性受到结核分枝杆菌的调控,其分子机制与 OPG/RANKL系统的变化密切相关。
目的探討結覈分枝桿菌超聲裂解產物(Mt sonicate)體外誘導小鼠破骨細胞的形成及 OPG/RANKL錶達變化與裂解物的濃度、時間的依賴性,研究結覈桿菌引起骨破壞的相關機製。方法原代培養的 BALB/c小鼠骨髓基質細胞以高、中、低濃度的 Mt sonicate進行榦預,在1、3、7、14 d進行 TRAP染色,觀察破骨細胞的形成,併採用 Realtime RT-PCR檢測各濃度、時間的骨保護素(OPG)/覈因子Kappa B受體活化因子配基(RANKL)mR-NA錶達。結果 Mt sonicate在體外可誘導小鼠骨髓基質細胞嚮破骨細胞的轉化;破骨細胞數量與 Mt sonicate濃度在3、7 d時呈顯著的正相關(3 d:r=0.417,P <0.05;7 d:r=0.463,P <0.05);3箇濃度榦預下,破骨細胞數量在1~7 d逐漸增多,7~14 d則逐漸減少。7 d時,高、中、低濃度 Mt sonicate榦預下 OPG/RANKL mRNA錶達比分彆為(1.35±0.11)、(7.38±1.15)、(9.85±1.26)。結論小鼠骨髓基質細胞嚮破骨細胞轉化的實驗中,存在結覈分枝桿菌裂解物的濃度和時間依賴性,且與 OPG/RANKL mRNA的錶達比呈負相關,破骨細胞形成時的數量與活性受到結覈分枝桿菌的調控,其分子機製與 OPG/RANKL繫統的變化密切相關。
목적탐토결핵분지간균초성렬해산물(Mt sonicate)체외유도소서파골세포적형성급 OPG/RANKL표체변화여렬해물적농도、시간적의뢰성,연구결핵간균인기골파배적상관궤제。방법원대배양적 BALB/c소서골수기질세포이고、중、저농도적 Mt sonicate진행간예,재1、3、7、14 d진행 TRAP염색,관찰파골세포적형성,병채용 Realtime RT-PCR검측각농도、시간적골보호소(OPG)/핵인자Kappa B수체활화인자배기(RANKL)mR-NA표체。결과 Mt sonicate재체외가유도소서골수기질세포향파골세포적전화;파골세포수량여 Mt sonicate농도재3、7 d시정현저적정상관(3 d:r=0.417,P <0.05;7 d:r=0.463,P <0.05);3개농도간예하,파골세포수량재1~7 d축점증다,7~14 d칙축점감소。7 d시,고、중、저농도 Mt sonicate간예하 OPG/RANKL mRNA표체비분별위(1.35±0.11)、(7.38±1.15)、(9.85±1.26)。결론소서골수기질세포향파골세포전화적실험중,존재결핵분지간균렬해물적농도화시간의뢰성,차여 OPG/RANKL mRNA적표체비정부상관,파골세포형성시적수량여활성수도결핵분지간균적조공,기분자궤제여 OPG/RANKL계통적변화밀절상관。
Objective This paper aims to explore the formation of broken bone cell in vitro mouse bone marrow stromal cells by Mycobacterium tuberculosis ultrasound pyrolysis products (Mt sonicate ) induction,the lysate concentration dependence of the time,and the mechanisms of bone destruction caused by TB bacilli.Methods Primary cultures of BALB/c mice bone marrow stromal cells were intervened with high,medium and low concentrations of Mt sonicate on 1,3,7,14 d;osteoclast formation was observed with TRAP staining and Realtime RT-PCR to detect the concentration and time of the OPG/RANKL mR-NA expression.Results Mt sonicate can induce in vitro transformation of mouse bone marrow stromal cells into osteoclasts;the number of osteoclasts and Mt sonicate concentration on 3 d and 7 d showed a sig-nificant positive correlation(3 d:r=0.417 P <0.05;7 d:r=0.463 P <0.05);with three concentrations intervention,the number of osteoclasts gradually increased from 1 d to 7 d,gradually reduced from 7 to 14 d;on 7 d,OPG/RANKL mRNA expression ratios in each group of Mt sonicate intervened cells in high medium and low concentrations were 1.35 ± 0.11,7.38 ± 1.15,9.85 ± 1.26.Conclusion There exist the dependence of Mycobacterium tuberculosis lysate concentration and time in the experiments on mouse bone marrow stromal cells into osteoclasts transformation,and the ratio of OPG/RANKL mRNA expression showed a negative relevance;the quantity and activity of osteoclastogenesis was regulated by the Mycobac-terium tuberculosis;the molecular mechanisms of changes are closely related with OPG/RANKL system.