地塞米松调节骨髓基质细胞成脂及成骨分化的研究

目的　观察激素对骨髓基质细胞脂肪特异性基因aP2mRNA及成骨基因Ⅰ型胶原mRNA表达的影响。方法　以地塞米松 (1× 10 -7mol/L)作为诱导剂 ,采用完整细胞斑点印迹分子杂交方法检测实验组和对照组中aP2和Ⅰ型胶原mRNA表达。结果　实验组aP2mRNA含量4847.7± 40 6 .4明显高于对照组 15 7.6± 10 .8,其Ⅰ型胶原mRNA含量 44 2 .3± 5 7.8明显低于对照组 5 35 3 .6± 36 4.6。结论　地塞米松能够从基因调控水平诱导骨髓基质细胞向脂肪细胞分化 ,减少其向成骨细胞分化 ,这可能与激素性骨坏死的发病机制有关。     

骨形成蛋白-2和牙胚细胞联合作用诱导人牙周膜干细胞表达成牙骨质细胞的表型研究

目的:探讨大鼠牙胚细胞(Tooth germ cells,TGC)与骨形成蛋白-2(Bone morphogenetic proteins-2,BMP-2)联合作用对人牙周膜干细胞(Human periodontal ligament stem cells,hPDLSCs)向成牙骨质细胞表型分化的作用。方法:将免疫磁珠法分离的hPDLSCs与TGC共培养,并加入50ng/mL的BMP-2,通过RT-PCR,茜素红染色和碱性磷酸酶(Alkaline Phosphatase,ALP)活性检测等方法分析其相关成牙骨质基因及蛋白的表达变化。结果:诱导后hPDLSCs的ALP活性明显升高(P0.001),牙骨质细胞相关基因如牙骨质附着蛋白(Cementum attachment protein,CAP)、牙骨质蛋白(Cementum protein1,CEMP-1)、ALP,骨钙素(Osteocalcin,OCN)的转录水平表达量均有不同程度的增高(P0.001)。矿化诱导14d后,诱导组形成大量矿化结节,与对照组相比具有统计学意义(P0.001)。结论:TGC与BMP-2联合作用能够诱导hPDLSCs与向成牙骨质细胞的表型分化。     

地塞米松和1，25(OH)2D3对体外人骨髓基质细胞成骨及成脂分化的影响

目的 观察地塞米松（Dex）和1，25（OH）2D3（D3）对骨髓基质细胞（MSCs）成骨及成脂分化的影响。方法 以离心法分离培养人MSCs，以10^-7mol／LDex和，或10^-8mol／Ll，25（OH）2D3作为分化诱导剂对细胞进行干预，分别用细胞碱性磷酸酶（ALP）染液试剂盒及苏丹Ⅲ染液对成骨细胞和脂肪细胞进行组织化学染色，计数；使用RT-PCR技术在转录水平检测成骨细胞标记物骨桥蛋白（OPN）及脂肪细胞标记物过氧化酶体增殖激活受体72（PPARγ2）mRNA的表达。结果细胞染色结果表明各干预组ALP^＋细胞百分比均较对照组增加，与对照组相比有显著性差异（P〈0．05），苏丹Ⅲ^＋细胞百分比Dex组较对照组增多，耽组较对照组减少，差异有显著性（P〈0．05），Dex＋D3组较Dex组苏丹Ⅲ^＋细胞数明显减少，两者相比差异有显著性（P〈0．05）；OPNmRNA及PPARγ2mRNA表达未在对照组测得，Dex诱导了OPNmRNA及PPARγ2mRNA表达，1，25（OH）2D3诱导OPNmRNA表达，并抑制Dex诱导的PPARγ2mRNA的表达。结论 Dex促进MSCs的成骨分化及成脂分化，1，25（OH），D，促进MSCs的成骨分化的同时抑制其成脂分化，与Dex合用抑制Dex成脂分化作用，强化了其成骨分化作用，反映了成骨细胞与脂肪细胞间存在的反变关系，表明两者来源于同一前体细胞的可能性。     

富血小板血浆对牙周韧带成纤维细胞在牙骨质表面附着及增殖的影响

目的 探讨应用富血小板血浆(PRP)对人牙周韧带成纤维细胞(PDLFs)在健康牙和牙周病患牙牙骨质表面附着和增殖情况的影响.方法 采用组织块法培养人牙周膜成纤维细胞,取第四代细胞用于实验.分别制备健康牙和牙周病患牙牙骨质块置于96孔板,附着实验在接种细胞后加入含10%PRP和不含PRP的培养液,4小时后MTT法检测附着细胞数量;增殖实验在接种细胞常规培养24小时,而后加入不含血清的培养液培养48小时,更换为含10%PRP和不含PRP的培养液,24小时后MTT法检测细胞数量;并以扫描电镜观察细胞在牙骨质表面的情况.结果 附着实验中10%PRP组附着细胞数量较不含PRP组明显增多;增殖实验中10%PRP组和不含PRP组细胞数量无明显差异.结论 10%PRP可促进人PDLFs在健康牙和牙周病患牙牙骨质块上的附着,但对细胞在牙骨质块上的增殖无明显影响.     

地塞米松对人牙髓细胞增殖分化影响的研究

目的观察地塞米松对体外培养的人牙髓细胞增殖和分化的影响。方法收集拔除的无龋坏、无牙周疾病的健康前磨牙及第三磨牙,获得牙髓,酶消化联合组织块法体外培养人牙髓细胞(Human dental pulp cells,hDPCs),扩增后取第4代生长状态良好的细胞用于实验。分为两组,实验组hDPCs在含2%胎牛血清(Fetal bovine serum,FBS)的αMEM培养基中加入10-8mol/L地塞米松(Dexamethasone,Dex)培养,对照组单纯使用含2%FBS的αMEM培养基培养。在细胞培养第1、3、5天检测细胞增殖情况;细胞培养的第1、5、10天分别进行ALP染色及ALP定量分析检测细胞分化情况;细胞培养第10天进行茜素红染色观察钙化结节形成情况。结果细胞增殖活性检测显示,实验组培养第3天及第5天可见hDPCs增殖活性得到显著抑制,与对照组相比有统计学差异;ALP染色及定量测定:培养10 d后,地塞米松实验组ALP活性明显高于对照组;茜素红染色结果:培养10 d后两组细胞茜素红染色均为阳性,表明实验组与对照组均有钙化结节形成,但是实验组钙化结节形成数量较多。结论酶消化联合组织块法可以成功体外培养hDPCs。10-8mol/L地塞米松可显著抑制hDPCs的增殖活性,提高hDPCs的ALP活性及矿化能力。     

地塞米松对骨髓间充质细胞增殖及成骨、成脂分化的效应

目的 探讨不同浓度地塞米松(dexamethasone,DEX)作用不同时间对骨髓间充质干细胞(bone marrow mesenchymal stem cells,BMSCs)的增殖及成骨、成脂分化的影响.方法 体外分离培养大鼠BMSCs,将状态良好的第三代细胞接种于96孔板中,随机分组为对照组(不加入DEX)及不同浓度(1 nmol/L、10 nmol/L、0.1μmol/L、1μmol/L)DEX作用组,培养1、3、5、7、9 d后,分别用细胞增殖检测(CCK-8)法检测细胞增殖状况.将BMSCs接种于6孔板中,随机分为对照组及不同浓度(1 nmol/L、10 nmol/L、0.1μmol/L、1μmol/L)DEX作用组,培养7、14 d后分别用荧光定量PCR方法检测成骨、成脂相关基因的表达,培养14 d后用Western blot检测成骨、成脂相关蛋白的表达.培养5 d后进行碱性磷酸酶(alkaline phosphatase,ALP)染色,培养14 d后进行油红"O"染色、茜素红染色.结果 较低浓度的DEX促进BMSCs增殖,而较高浓度DEX抑制BMSCs增殖.干预早期,较低浓度的DEX促进BMSCs成骨分化而高浓度DEX抑制其成骨分化;干预晚期,各浓度DEX均促进BMSCs成骨指标的表达,但是不能诱导BMSCs钙质沉积.DEX浓度依赖性地促进BMSCs成脂相关指标基因和蛋白的表达,并诱导BMSCs细胞内脂质沉积.结论 DEX可直接影响BMSCs增殖及向成骨、成脂方向分化,这种效应存在浓度和干预时间依赖性.     

成纤维细胞生长因子对骨生长及骨修复的调节作用

成纤维细胞生长因子对骨生长及骨修复的调节作用李亚非，张晶，胡蕴玉成纤维细胞生长因子（ＦＧＦ）在体内生物学效应广泛，本文就近年来ＦＧＦ及某些骨生长因子对骨生长、修复调节作用的研究综述如下。ＦＧＦ以两种密切相关的形式存在，即碱性成纤维细胞生长因子（ｂＦＧ...     

正常皮肤提取物对成纤维细胞增殖和胶原合成的影响

目的 探讨自体成纤维细胞注射移植后是否出现过度增殖和胶原异常分泌.方法 按照Engel-Catchpole程序制备正常皮肤提取物,在浓度分别为0.0625、0.1250、0.2500、0.5000、1.0000 mg/mlDMEM培养基下,观察对正常成纤维细胞增殖和胶原合成的影响.结果 正常皮肤提取物抑制正常皮肤成纤维细胞的增殖,细胞外胶原的分泌也受一定的影响,受抑制的程度与培养基中皮肤提取物的浓度呈正相关.结论 正常皮肤内存在成纤维细胞增殖和胶原分泌功能的负调节机制,有可能在进行自体成纤维细胞注射移植时发挥作用.     

地塞米松对兔髓核细胞增殖及增殖细胞核抗原表达的影响

目的 观察地塞米松对兔椎间盘髓核细胞增殖的影响,以及对髓核细胞表达增殖细胞核抗原(PCNA)的影响.方法 无菌条件下取兔椎间盘,常规分离消化髓核细胞进行培养;传代培养第2代髓核细胞7 d,随机分为4组,实验组给予l～100 nmol/L地塞米松进行培养,对照组给与等量磷酸盐缓冲液(PBS),培养5 d后收集细胞.采用逆转录-聚合酶链反应(RT-PCR)法检测地塞米松对兔髓核细胞内PCNA mRNA表达的影响;并提取蛋白用Western blot方法检测PCNA蛋白表达.结果 RT-PCR及Western blot检测结果表明,1～100 nmol/L地塞米松可增加兔髓核细胞内PCNA的表达,当地塞米松浓度为100 nmol/L时效果最显著,分别增加了0.42和1.37倍,差异有统计学意义(P<0.05).结论 地塞米松可以促进兔椎间盘髓核细胞的增殖,并可使兔髓核细胞内PCNA的表达增高.     

地塞米松对兔髓核细胞增殖及聚集蛋白聚糖表达的影响

目的 观察地塞米松对兔椎间盘髓核细胞增殖的影响,以及对髓核细胞分泌聚集蛋白聚糖(Aggrecan)的影响.方法 无菌条件下取兔椎间盘,常规分离消化髓核细胞进行培养;传代培养第2代髓核细胞7 d,随机分为两组,实验组给于1～10000 nmol/L地塞米松进行培养,对照组不给于地塞米松,分别培养不同的时间段.采用噻唑蓝(MTT)比色法检测地塞米松对兔髓核细胞增殖的影响;采用逆转录-聚合酶链反应(RT-PCR)法检测地塞米松对兔髓核细胞内Aggrecan mRNA表达的影响.结果 MTT检测结果表明地塞米松对兔髓核细胞增殖有促进作用,最佳作用浓度为100nmol/L,最佳作用时间为48 h;RT-PCR检测结果表明经地塞米松处理的髓核细胞其Aggrecan表达明显较对照组高,是对照组的2.04倍(0.92/0.45),差异有统计学意义(P<0.05).结论 地塞米松可促进兔椎间盘髓核细胞的增殖,并可使兔髓核细胞内Aggrecan表达增高.     

The in vitro effect of gold complexes on bone resorption

Mouse calvaria were maintained in organ culture without serum additives. The effects of three gold complexes--aurothioglucose, aurothiomalate, and auranofin--on active bone resorption (45Ca release) and hydroxyproline synthesis were determined. The influence of these compounds on DNA and protein synthesis and lysosomal enzyme release from calvaria was also assessed. All gold complexes reduced bone resorption to some extent, with auranofin being the most potent within a narrow concentration range (10(-6) M). This concentration of auranofin also significantly inhibited collagen synthesis, although DNA and protein synthesis were unaffected. None of the compounds tested appeared to mediate their action via significant inhibition of lysosomal enzyme release.     

Dexamethasone modulates BMP‐2 effects on mesenchymal stem cells in vitro

Dexamethasone/ascorbic acid/glycerolphosphate (DAG) and bone morphogenic protein (BMP)‐2 are potent agents in cell proliferation and differentiation pathways. This study investigates the in vitro interactions between dexamethasone and BMP‐2 for an osteoblastic differentiation of mesenchymal stem cells (MSCs). Bone marrow‐derived human MSCs were cultured with DAG (group A), BMP‐2 + DAG (group B), and DAG + BMP‐2 combined with a porous collagen I/III scaffold (group C). RT‐PCR, ELISA, immuncytochemical stainings and flow cytometry analysis served to evaluate the osteogenic‐promoting potency of each of the above conditions in terms of cell morphology/viability, antigen presentation, and gene expression. DAG induced collagen I secretion from MSCs, which was further increased by the combination of DAG + BMP‐2. In comparison, the collagen scaffold and the control samples showed no significant influence on collagen I secretion of MSCs. DAG stimulation of MSCs led also to a steady but not significant increase of BMP‐2 level. A DAG and more, a DAG + BMP‐2, stimulation increased the number of mesenchymal cells (CD105+/CD73+). All samples showed mRNA of ALP, osteopontin, Runx2, Twist 1 and 2, Notch‐1/2, osteonectin, osteocalcin, BSP, and collagen‐A1 after 28 days of in vitro culture. Culture media of all samples showed a decrease in Ca²⁺ and PO concentration, whereas a collagen‐I‐peak only occurred at day 28 in DAG‐ and DAG + BMP‐2‐stimulated bone marrow cells. In conclusion, BMP‐2 enhances DAG‐induced osteogenic differentiation in mesenchymal bone marrow cells. Both agents interact in various ways and can modify osteoblastic bone formation. © 2008 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 26:1440–1448, 2008     

Dexamethasone enhances differentiation of human osteoblastic cells in vitro

We examined the effects of dexamethasone (Dex) on the differentiation of osteoblastic cells isolated from human bone in vitro. The morphology of the cells exposed to Dex was transformed into a polygonal shape, while the cells exhibited a fibroblastic spindle shape in the absence of Dex. Staining for alkaline phosphatase (ALP) was more intense in Dex-treated cultures. In monolayer cultures, mineralization by the human osteoblastic cells was also stimulated by Dex treatment. The ALP activity of the cells cultured for 6 days in 10⁻⁸–10⁻⁶ M Dex increased in a dose-dependent manner. Furthermore, the ALP activity of the cells treated with 10⁻⁷M Dex for 9 days was 1.4-fold higher than that of the cells treated with 10⁻⁷M Dex for the first 3 days, followed by withdrawal for 6 days. Biochemical indicators of osteoblastic differentiation, which include ALP activity and secretion of procollagen type I carboxy-terminal peptide (PICP) and osteocalcin, were significantly enhanced in the cells exposed to Dex at 10⁻⁷M for 5 days. On the other hand, the time-dependent increase of ALP activity and osteocalcin levels in the control cells suggested that the cells gradually differentiate in continuous culture after they reached confluency. These findings suggest that Dex at the indicated concentration in this study enhances differentiation of human osteoblastic cells in vitro.     

TDZD-8对新生大鼠背根节神经元轴突再生影响的体外实验研究

目的:探讨葡萄糖原合成酶-3β(glycogen synthase kinase 3B,GSK-3β)的抑制剂TDZD-8对新生大鼠背根节(dorsal root ganglion,DRG)神经元轴突生长和延长的影响.方法:取新生(<5d)SD大鼠胸腰段背根节进行原代培养、提纯和鉴定.用WD法制成健康成年雌性SD大鼠T9平面完全性截瘫的脊髓损伤动物模型.造模7d后取T8～T10节段脊髓制作脊髓提取液.将不同浓度TDZD-8与成年大鼠脊髓提取液和新生大鼠DRG神经元分组培养:A组,DRG神经元+磷酸缓冲液(phosphate-bufered saline,PBS);B组,DRG神经元+正常脊髓提取液;C组,DRG神经元+假手术脊髓提取液:D组,DRG神经元+全瘫脊髓提取液;E组,DRG神经元+全瘫脊髓提取液+不同浓度TDZD-8.培养2d后观察并比较各组新生大鼠DRG神经元轴突平均长度和微管(Tubulin 8Ⅲ)荧光表达强度.结果:A组、B组和C组之间平均神经轴突长度及轴突远端Tubulin βⅢ表达强度比较,无统计学意义,D组明显减小,与A、B和C组分别比较,有统计学意义(P<0.01).0.5～3μM TDZD-8处理组平均轴突长度及Tubulin βⅢ荧光表达强度均明显高于A、B、C组,与D组比较,更为显著,差异均具有统计学意义(P<0.01).5～25μM TDZD-8处理组平均轴突长度与A、B、C组分别比较,明显缩短且有统计学意义(P<0.01),与D组比较无统计学差异(P>0.05);轴突远端Tuburn βⅢ表达比A、B、C、D组及0.5～3μM TDZD-8处理组明显增强,有统计学意义(P<0.01).结论:完全瘫痪脊髓提取液明显抑制DRG神经元轴突生长,轴突回缩.低浓度TDZD-8能促进轴突生长.形成多个轴突或轴突分支,而高浓度TDZD-8明显抑制轴突生长,导致轴突回缩.     

福莫特罗和ICI118551对大鼠成熟破骨细胞骨吸收功能的影响

目的研究选择性β2肾上腺素能激动剂福莫特罗(Formoterol)和阻滞剂ICI118551对体外培养大鼠成熟破骨细胞(osteoclast,OC)功能的影响,探讨β2肾上腺素能受体信号对骨代谢的影响。方法取清洁级出生24h内的SD乳大鼠,长骨干骨髓腔内壁机械分离成熟OC后分别加入不同浓度(10-5mol/L～10-9mol/L)的Formoterol和ICI118551,以抗酒石酸酸性磷酸酶(TRAP)染色观察破骨细胞形态,甲苯胺蓝染色计数骨片上的骨吸收陷窝数目,Image-ProPlus6.0图像软件分析骨片上骨吸收陷窝面积。结果破骨细胞与骨片共培养6天,不同浓度的Formoterol与对照组相比均可增加骨片上OC的骨吸收陷窝数目和面积;随着ICI118551浓度的提高骨片上骨吸收陷窝的数目和面积逐渐减少。结论β2肾上腺素能受体激动剂可促进体外培养OC的骨吸收功能,阻滞剂对OC的骨吸收功能有抑制作用,且呈剂量依赖性。     

地塞米松和维生素C对重症感染病人血清过氧化脂质变化的影响

本文报道４８例重症感染病人，在使用地塞米松或维生素Ｃ后血清过氧化脂质的变化。治疗前所有病人的血清ＬＰＯ均明显高于正常，当滴入地塞米松或维生素Ｃ后。ＬＰＯ值则下降，而对照组则持续升高，提示地塞米松和维生素Ｃ能阻止重症感染病人的脂质过氧化反应。     

The in vitro effect of calcitriol on parathyroid cell proliferation and apoptosis

Calcitriol treatment is used to reduce parathyroid hormone levels in azotemic patients with secondary hyperparathyroidism (HPT). Whether long-term calcitriol administration reduces parathyroid gland size in patients with severe secondary hyperparathyroidism is not clear. The aim of the study was to evaluate in vitro the effect of calcitriol on parathyroid cell proliferation and apoptosis in normal parathyroid glands and in adenomatous and hyperplastic human parathyroid glands. Freshly harvested parathyroid glands from normal dogs and hyperplastic and adenomatous glands from patients with secondary (2 degrees) and primary (1 degree) HPT undergoing parathyroidectomy were studied. Flow cytometry was used to quantify the cell cycle and apoptosis of parathyroid cells. Apoptosis was also evaluated by DNA electrophoresis and light and electron microscopy. In normal dog parathyroid glands, culture with calcitriol (10(-10) to 10(-7) M) for 24 h produced a dose-dependent inhibitory effect on the progression of cells into the cell cycle and into apoptosis. When glands from patients with 2 degrees HPT were cultured for 24 h, only high calcitriol concentrations (10(-7) M) inhibited the progression through the cell cycle and the induction of apoptosis. In parathyroid adenomas (1 degrees HPT), even a high concentration of calcitriol (10(-7) M) had no significant effect on the cell cycle or apoptosis. The present study shows that in vitro, calcitriol inhibits in a dose-dependent manner in normal parathyroid glands both parathyroid cell proliferation and apoptosis. However, in secondary hyperplasia, only high concentrations of calcitriol inhibited cell proliferation and apoptosis. In 1 degree HPT, even high concentrations of calcitriol had no effect. Because calcitriol simultaneously inhibits both cell proliferation and apoptosis, a reduction in the parathyroid gland mass may not occur as a direct effect of calcitriol treatment.     

The effect of two diphosphonates on the resorption of mouse calvariain vitro

Two diphosphonates, disodium ethane-1-hydroxy-1,1-diphosphonate (EHDP) and disodium dichloromethyle diphosphonate (Cl₂MDP), inhibit cell-mediated bone resorption of mouse calvaria cultivated for 48 hoursin vitro, when the compounds are added to the medium. Cl₂MDP is more effective than EHDP over the dose range 0–16 g P/ml. Pyrophosphate and imidodiophosphate do not block bone resorption at comparable dose levels. When the two diphosphonates are injected into micein vivo before explants are prepared, subsequent bone resorptionin vitro is considerably reduced; at a dose level of 10 g P/g body weight of Cl₂MDP it is almost completely blocked. This effect is rapid and persists for several days. The implications of these results and the method of testing inhibitors of bone resorption by the combinedin vivo/in vitro method are discussed.

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Zusammenfassung Zwei Diphosphonate, Dinatrium-äthan-1-hydroxy-1,1-diphosphonat (EHDP) und Dinatrium-Dichloromethylendiphosphonat (Cl₂MDP), hemmen zellbedingte Knochenresorption von Mäuseschädeldächern, welche während 48 Stdin vitro kultiviert worden waren, wenn diese Substanzen dem Nährmedium zugegeben werden. Im Dosierungsbereich von 0–16 g P/ml ist Cl₂MDP wirksamer als EHDP. Pyrophosphat und Imidodiphosphat blockieren die Knochenresorption bei entsprechenden Dosen nicht. Wenn die zwei Diphosphonate Mäusenin vivo injiziert werden, bevor das Explantat hergestellt wird, ist die nachfolgende Knochenresorptionin vitro stark vermindert; bei einer Dosierung von 10 g P/g Körpergewicht von Cl₂MDP ist die Resorption fast gänzlich blockiert. Diese Wirkung erfolgt rasch und dauert während einigen Tagen an. Die Folgerungen aus diesen Ergebnissen sowie das Verfahren, Knochenresorptionshemmer mittels kombinierterin vivo/in vitro-Methode zu prüfen, werden diskutiert.

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Résumé Deux diphosphonates, le disodium-éthane-1-hydroxyle-1,1-diphosphonate (EHDP) et le disodium dichlorométhylène diphosphonate (Cl₂MDP), inhibent la résorption osseuse, induite par des cellules au niveau de calottes craniennes, cultivées pendant 48 heuresin vitro, lorsque ces substances sont ajoutées au milieu. Le Cl₂MDP est plus actif que l'EHDP, à des doses variant 0–16 g P/ml. Le pyrophosphate et l'imidodiphosphate n'inhibent pas la résorption osseuse à des doses comparables. Lorsque les deux diphosphonates sont injectés à des sourisin vivo avant mise en culture, la résorption osseuse observéein vitro est considérablement réduite: à une dose de 10 g P/g de poids corporel de Cl₂MDP, elle est presque totalement inhibée. Cet effet est rapide et dure plusieurs jours. Les conséquences de ces résultats et la méthode d'essai d'inhibiteurs de la résorption osseuse par la méthode combinéein vivo/ in vitro sont envisagées.

     

CKIP-1过表达对大鼠体外破骨细胞增殖影响的研究

目的分离培养大鼠破骨细胞,构建CKIP-1过表达慢病毒,观察被CKIP-1过表达慢病毒感染的体外大鼠破骨细胞的细胞增殖情况,探讨CKIP-1基因对体外大鼠破骨细胞增殖的影响。方法分离、培养SD大鼠原代破骨细胞,用抗酒石酸酸性磷酸酶染色法鉴定。构建CKIP-1过表达载体,完成慢病毒包装。将破骨细胞分为A组(破骨细胞空白对照组)、B组(破骨细胞+空载病毒组)、C组(破骨细胞+CKIP-1过表达病毒组),分别进行对应处理,qRT-PCR检测CKIP-1基因表达效果,CCK-8试剂盒检验破骨细胞的相对数量。结果成功鉴定大鼠原代破骨细胞分离培养。qRT-PCR检测破骨细胞中CKIP-1的mRNA水平结果显示:相比A组和C组,在感染CKIP-1病毒的C组,CKIP-1的基因水平有较高表达(P0.01),CKIP-1过表达载体过表达效果明显,载体构建成功。CCK-8试剂盒检测各组细胞增殖的结果显示:相比A组和C组,感染CKIP-1病毒的C组的细胞增殖比例显著升高(P0.01)。结论成功分离培养出大鼠破骨细胞。成功构建CKIP-1过表达慢病毒,并感染体外大鼠破骨细胞。CKIP-1的过表达具有促进体外大鼠破骨细胞增殖的功能。