中华骨质疏松和骨矿盐疾病杂志
中華骨質疏鬆和骨礦鹽疾病雜誌
중화골질소송화골광염질병잡지
Chinese Journal of Osteoporosis and Bone Mineral Research
2015年
3期
236-242
,共7页
杨勇%李文凯%宋明宇%吴华
楊勇%李文凱%宋明宇%吳華
양용%리문개%송명우%오화
三磷酸腺苷%骨髓间充质干细胞%成骨分化
三燐痠腺苷%骨髓間充質榦細胞%成骨分化
삼린산선감%골수간충질간세포%성골분화
adenosine triphosphate%bone marrow mesenchymal stem cell%osteogenesis
目的探讨三磷酸腺苷( adenosine triphosphate , ATP)对骨髓间充质干细胞增生和向成骨分化的影响及初步机制。方法体外培养SD大鼠骨髓间充质干细胞,取第3代细胞,分对照组和ATP作用组,加入一定浓度的ATP (600、300、150μmol)。用半定量反转录聚合酶链反应( reverse transcription-polymerase chain reaction, RT-PCR)和real time PCR法检测多个成骨指标mRNA的表达,对硝基苯磷酸盐(ρ-nitropheny-lphosphate , PNPP)法检测碱性磷酸酶的表达, Von kossa法检测钙结节的形成。结果 ATP组碱性磷酸酶活性升高( P<0.05),多个成骨指标如BMP2、 BSP、 DLX等表达升高( P<0.05), ATP组钙结节数量明显多于对照组。在加入P2 X7受体抑制剂后, ATP促成骨指标BMP2、 BSP、 DLX等的表达有所减弱( P<0.05)。结论一定浓度的ATP促进骨髓间充质干细胞碱性磷酸酶的表达、多个成骨指标的表达、钙结节的形成,以及促进骨髓间充质干细胞向成骨分化,并受P2 X7受体的影响。
目的探討三燐痠腺苷( adenosine triphosphate , ATP)對骨髓間充質榦細胞增生和嚮成骨分化的影響及初步機製。方法體外培養SD大鼠骨髓間充質榦細胞,取第3代細胞,分對照組和ATP作用組,加入一定濃度的ATP (600、300、150μmol)。用半定量反轉錄聚閤酶鏈反應( reverse transcription-polymerase chain reaction, RT-PCR)和real time PCR法檢測多箇成骨指標mRNA的錶達,對硝基苯燐痠鹽(ρ-nitropheny-lphosphate , PNPP)法檢測堿性燐痠酶的錶達, Von kossa法檢測鈣結節的形成。結果 ATP組堿性燐痠酶活性升高( P<0.05),多箇成骨指標如BMP2、 BSP、 DLX等錶達升高( P<0.05), ATP組鈣結節數量明顯多于對照組。在加入P2 X7受體抑製劑後, ATP促成骨指標BMP2、 BSP、 DLX等的錶達有所減弱( P<0.05)。結論一定濃度的ATP促進骨髓間充質榦細胞堿性燐痠酶的錶達、多箇成骨指標的錶達、鈣結節的形成,以及促進骨髓間充質榦細胞嚮成骨分化,併受P2 X7受體的影響。
목적탐토삼린산선감( adenosine triphosphate , ATP)대골수간충질간세포증생화향성골분화적영향급초보궤제。방법체외배양SD대서골수간충질간세포,취제3대세포,분대조조화ATP작용조,가입일정농도적ATP (600、300、150μmol)。용반정량반전록취합매련반응( reverse transcription-polymerase chain reaction, RT-PCR)화real time PCR법검측다개성골지표mRNA적표체,대초기분린산염(ρ-nitropheny-lphosphate , PNPP)법검측감성린산매적표체, Von kossa법검측개결절적형성。결과 ATP조감성린산매활성승고( P<0.05),다개성골지표여BMP2、 BSP、 DLX등표체승고( P<0.05), ATP조개결절수량명현다우대조조。재가입P2 X7수체억제제후, ATP촉성골지표BMP2、 BSP、 DLX등적표체유소감약( P<0.05)。결론일정농도적ATP촉진골수간충질간세포감성린산매적표체、다개성골지표적표체、개결절적형성,이급촉진골수간충질간세포향성골분화,병수P2 X7수체적영향。
Objective To study the mechanism and the osteogenesis differentiation of bone marrow mesenchy -mal stem cells stimulated by adenosine triphosphate ( ATP) .Methods The bone marrow mesenchymal stem cells of SD rats were isolated and cultured in vitro.The third passage cells were harvested and added with ATP .The semi-quantitative reverse transcription-polymerase chain reaction ( RT-PCR) and real time PCR were used to measure the osteogenic marker expression; The ρ-nitrophenylphosphate ( PNPP) method was used to measure alkaline phosphatase ( ALP) activity. The calcium nodes were measured by Von kossa stain .Results ATP induced a significant increase in expression of ALP , RUNX2, bone morphogenetic protein 2 (BMP2) (P<0.05), and calcium node formation in comparison to the controls . The osteogenesis marker expression was reduced by P 2X7 inhibitor brilliant blue G (BBG).Conclusion ATP promoted osteogenesis differentiation of bone marrow mesenchymal stem cells .The effect was correlated P2X7 receptor.