中华实验外科杂志
中華實驗外科雜誌
중화실험외과잡지
CHINESE JOURNAL OF EXPERIMENTAL SURGERY
2014年
9期
1980-1982
,共3页
王汝杰%邓小军%刘复州%邱浩%邹传奇%陈培%王洪凯%张莹%初同伟
王汝傑%鄧小軍%劉複州%邱浩%鄒傳奇%陳培%王洪凱%張瑩%初同偉
왕여걸%산소군%류복주%구호%추전기%진배%왕홍개%장형%초동위
Jagged1%破骨细胞%Notch%细胞分化%细胞增殖
Jagged1%破骨細胞%Notch%細胞分化%細胞增殖
Jagged1%파골세포%Notch%세포분화%세포증식
Jagged1%Osteoclasts%Notch%Differentiation%Proliferation
目的 观察Jagged1通过活化Notch通路对人外周血CD14+单核细胞破骨分化、增殖的影响.方法 免疫组织化学法检测Jagged1在肺癌骨转移标本中的表达,Ficoll法联合磁珠分选法分离人外周血CD14+单核细胞,分别加入Jagged1重组蛋白、Jagged1重组蛋白及γ-分泌酶抑制剂(DAPT)分组培养,采用实时定量聚合酶链反应(Real-time PCR)检测组织蛋白酶K(CK)、抗酒石酸性磷酸酶(TRAP)、降钙素受体(CTR)及Notch靶基因发状分裂相关增强子-1(HES-1)、HES相关YRPW主题-1(HEY-1)mRNA的表达,TRAP染色鉴定破骨细胞,扫描电镜检测破骨细胞溶骨功能.细胞计数法(CCK-8)检测CD14+单核细胞增殖.结果 Jagged1在肺癌骨转移标本中高表达,癌旁组织无或低表达;Jagged1组TRAP、CK、CTR及HES-1、HEY-1 mRNA的表达、TRAP+细胞数较对照组及DAPT组明显升高(P<0.05),而DAPT组与对照组比较均无明显变化;细胞培养48 h,Jagged1组细胞增殖较对照组及DAPT组明显抑制.结论 Jagged1通过活化Notch通路促进破骨前体细胞分化、抑制其增殖.
目的 觀察Jagged1通過活化Notch通路對人外週血CD14+單覈細胞破骨分化、增殖的影響.方法 免疫組織化學法檢測Jagged1在肺癌骨轉移標本中的錶達,Ficoll法聯閤磁珠分選法分離人外週血CD14+單覈細胞,分彆加入Jagged1重組蛋白、Jagged1重組蛋白及γ-分泌酶抑製劑(DAPT)分組培養,採用實時定量聚閤酶鏈反應(Real-time PCR)檢測組織蛋白酶K(CK)、抗酒石痠性燐痠酶(TRAP)、降鈣素受體(CTR)及Notch靶基因髮狀分裂相關增彊子-1(HES-1)、HES相關YRPW主題-1(HEY-1)mRNA的錶達,TRAP染色鑒定破骨細胞,掃描電鏡檢測破骨細胞溶骨功能.細胞計數法(CCK-8)檢測CD14+單覈細胞增殖.結果 Jagged1在肺癌骨轉移標本中高錶達,癌徬組織無或低錶達;Jagged1組TRAP、CK、CTR及HES-1、HEY-1 mRNA的錶達、TRAP+細胞數較對照組及DAPT組明顯升高(P<0.05),而DAPT組與對照組比較均無明顯變化;細胞培養48 h,Jagged1組細胞增殖較對照組及DAPT組明顯抑製.結論 Jagged1通過活化Notch通路促進破骨前體細胞分化、抑製其增殖.
목적 관찰Jagged1통과활화Notch통로대인외주혈CD14+단핵세포파골분화、증식적영향.방법 면역조직화학법검측Jagged1재폐암골전이표본중적표체,Ficoll법연합자주분선법분리인외주혈CD14+단핵세포,분별가입Jagged1중조단백、Jagged1중조단백급γ-분비매억제제(DAPT)분조배양,채용실시정량취합매련반응(Real-time PCR)검측조직단백매K(CK)、항주석산성린산매(TRAP)、강개소수체(CTR)급Notch파기인발상분렬상관증강자-1(HES-1)、HES상관YRPW주제-1(HEY-1)mRNA적표체,TRAP염색감정파골세포,소묘전경검측파골세포용골공능.세포계수법(CCK-8)검측CD14+단핵세포증식.결과 Jagged1재폐암골전이표본중고표체,암방조직무혹저표체;Jagged1조TRAP、CK、CTR급HES-1、HEY-1 mRNA적표체、TRAP+세포수교대조조급DAPT조명현승고(P<0.05),이DAPT조여대조조비교균무명현변화;세포배양48 h,Jagged1조세포증식교대조조급DAPT조명현억제.결론 Jagged1통과활화Notch통로촉진파골전체세포분화、억제기증식.
Objective To study the role of Jadded1 and Notch signaling pathway played in the differentiation and proliferation of osteoclasts derived from human circulating CD14 + monocytes.Methods Peripheral blood CD14 + monocytes were isolated from healthy adult by Ficoll density gradient centrifugation combined with magnetic beads separation.Recombinant protein Jagged1 and γ-Secretase Inhibitor (DAPT) with Jagged1 were added to the culture system of CD14 + monocytes respectively.The mRNA expression of osteoclast markers tartrate-resistant acid phosphatase (TRAP),cathepsin K (CK),calctionin receptor (CTR) and Notch key target genes hairy and enhancer of split-1 (HES-1) and HES-related with YRPW motif-1 (HEY-1) were measured by quantitative real-time quantitative polymerase chain reaction (Real-time PCR).The formation of osteoclast,bone resorption,Notch expression and proliferation of CD14 + monocytes were detected by TRAP staining,scanning electron microscope,and cell counting kit-8 (CCK-8).Results High expression of Jagged1 in bone metastases specimens was observed in contrast of no expression or low expression in adjacent tissues.TRAP,CK,CTR,HES-1 and HEY-1 mRNA expression were significantly higher than the control group and DAPT group in Jadded1 group (P < 0.05).TRAP + cell count,osteolytic area was significantly increased in Jagged1 group when compared with control and DAPT group,and no significant difference observed between the last two groups.Cell proliferation was inhibited in Jagged1 group also (P < 0.05).Conclusion Jagged1 promotes osteoclast differentiation and inhibits proliferation by activating Notch signaling pathway.