骨髓基质细胞诱导为神经原及胶质细胞

目的:发现一种新的方法代替雪旺细胞用来修复周围神经缺损。方法:从大鼠抽取骨髓在体外诱导为胶质细胞并做免疫组化。结果:骨髓基质细胞在体外培养数代,显示出极强的扩增能力,并在条件培养液的作用下分化为神经原及神经胶质细胞。结论:经论证,本实验在治疗中枢及外周神经疾病方面有重要意义。     

兔骨髓基质细胞的体外分离培养及诱导成骨的实验研究

目的 探讨兔骨髓基质细胞（BMSCs）的体外分离培养及定向诱导成骨的方法。方法 选择10周龄新西兰兔，抽取其股骨大转子部骨髓，体外分离纯化得到BMSCs，再利用条件培养液将其向成骨方向定向诱导培养。采用碱性磷酸酶（ALP）和冯库萨（Von Kossa）染色方法，鉴定其成骨性能。结果 BMSCs在培养皿中贴壁生长、增殖，经ALP和Yon Kossa染色证实其有成骨潜能。结论 兔BMSCs的体外培养增殖能力强，能诱导分化为成骨细胞，可以作为骨组织工程的种子细胞。     

烧伤前后大鼠血清对骨髓基质细胞生物学行为的影响

目的 :观察烧伤前后大鼠血清对体外培养的大鼠骨髓基质细胞 (BMSCs)的生物学行为的影响 ,为BMSCs在创伤修复中的应用奠定实验基础。方法 :取 Wistar大鼠 ,处死 ,分离骨髓 ,原代培养 BMSCs,传代后分别用含有体积分数为 10 %的胎牛血清 (FCS,F组 )、正常大鼠血清 (N组 )、烧伤后 3d大鼠血清 (B1组 )和烧伤后 14 d大鼠血清 (B2组 )的 F 12培养基培养 ,用噻唑蓝 (MTT)法测定其生长曲线 ,碘化丙啶 (PI)染色 ,流式细胞仪分析细胞周期、DNA含量和细胞凋亡率。结果 :用含有 10 %大鼠血清的 F 12培养基传代培养的细胞生长曲线相似 ,但与含有 FCS的 F 12培养基传代培养的明显不同 ,前者倍增时间缩短 ,N组、B1组、B2组细胞群体倍增时间分别为 2 3.7h、18.6 h和 2 0 .2 h,且平台期所能达到的细胞总数明显增加。烧伤后大鼠血清处理的细胞中 G0 /G1期细胞比例明显低于其他两组 (P均 <0 .0 1) ,而 S期细胞的比例则相反 (P<0 .0 1)。大鼠血清处理的细胞中 DNA含量明显高于 FCS培养的细胞 (P<0 .0 5或 P<0 .0 1) ,而烧伤后的大鼠血清处理的细胞中 DNA含量又明显高于正常大鼠血清处理的细胞 (P<0 .0 1)。烧伤后 3d的大鼠血清处理的细胞的凋亡率比其他组细胞明显升高 (P<0 .0 1)。结论 :大鼠血清比胎牛血清能更好地促进大鼠     

骨髓基质细胞对血管内皮细胞生长及微血管形成的影响

目的研究骨髓基质细胞（BMSCs）在体外对血管内皮细胞生长及对微血管形成的影响。方法体外分离培养成人BMSCs和脑血管内皮细胞，分为共培养组、培养液组和对照组，观察BMSCs对脑血管内皮细胞增殖及微血管网状结构形成的影响。结果培养液组和共培养组对内皮细胞的增殖和微血管形成均有促进作用，共培养组的作用更为明显。结论BMSCs在体外促进内皮细胞的生长及微血管的形成。     

牛松质骨复合骨髓基质干细胞植入治疗兔股骨头坏死的实验研究

目的：探讨骨髓基质干细胞在股骨头坏死中的修复和治疗作用，为临床提供理论依据。方法：获取并培养新西兰大白兔的骨髓基质干细胞至第三代细胞长满后消化制成悬液，复合于自制的牛松质骨中备用。29只新西兰大白兔随机分为4组：A组为单纯造模组、B组为髓芯减压组、C组为自体骨髓基质干细胞移植组、D组为异体骨髓基质干细胞移植组。A组于术后1、2、4、6、8周，B、C、D组分别于术后2、4、6、8周处死动物，观察所获股骨头标本组织切片光镜检查和组织图像分析。结果：A组随时间增长逐渐出现骨小粱紊乱，软骨囊性变。C、D组8周时钻孔中心出现骨小梁结构，而B组只在钻孔边缘出现密度增高，钻孔中心无变化。结论：骨髓基质干细胞移植能够治疗股骨头坏死，且异体骨髓基质干细胞和自体骨髓基质干细胞移植治疗兔股骨头坏死的疗效差异无统计学意义。同时，牛松质骨可以作为一种较好的载体应用于骨组织工程学。     

Platelet lysate favours in vitro expansion of human bone marrow stromal cells for bone and cartilage engineering

The heterogeneous population of non-haematopoietic cells residing in the bone marrow (bone marrow stromal cells, BMSCs) and the different fractions and components obtained from platelet-rich plasma provide an invaluable source of autologous cells and growth factors for bone and other connective tissue reconstruction. In this study, we investigated the effect of an allogenic platelet lysate on human BMSCs proliferation and differentiation. Cell proliferation and number of performed cell doublings were enhanced in cultures supplemented with the platelet-derived growth factors (platelet lysate, PL), either with or without the concomitant addition of fetal bovine serum (FBS), compared to cultures performed in the presence of FBS and FGF2. Both in vitro and in vivo osteogenic differentiation were unaltered in cells maintained in medium supplemented with PL and not FBS (Only PL) and in cells maintained in medium containing FBS and FGF2. Interestingly, the in vitro cartilage formation was more effective in the pellet of BMSCs expanded in the Only PL medium. In particular, a chondrogenic differentiation was observed in pellets of some in vitro-expanded BMSCs in the Only PL medium, whereas pellets from parallel cell cultures in medium containing FBS did not respond to the chondrogenic induction. We conclude that the platelet lysate from human source is an effective and even more beneficial substitute for fetal bovine serum to support the in vitro expansion of human BMSCs for subsequent tissue-engineering applications.     

不同消化酶对体外培养的原代乳鼠雪旺细胞的影响

目的　比较不同消化酶对体外培养的原代乳鼠雪旺细胞的影响。方法　取1周龄SD乳鼠坐骨神经,分别用胰蛋白酶、胶原酶Ⅱ型、混合酶消化,相同方法及实验条件下进行雪旺细胞培养,观察细胞形态、计算2 4h贴壁活细胞百分比及MTT微量比色法比较细胞的生长增殖状况。结果　胰蛋白酶消化组细胞收获量相对最小,细胞损伤程度较大;胶原酶组细胞有一定程度损伤;混合酶组细胞收获量最大,细胞生长状态较好。结论　单纯使用胰蛋白酶或胶原酶消化对原代雪旺细胞的活性及增殖有一定影响,采用胰蛋白酶与胶原酶联合消化效果较好。     

低强度脉冲超声波刺激对人骨髓基质细胞和骨膜细胞生物学效应的影响

目的研究低强度脉冲超声波（LIPUS）对体外分离培养的人骨髓基质细胞、骨膜细胞生物学效应的影响，探讨其促进骨折愈合的相关机制。方法采用辐射强度为30mW／cm^2的脉冲超声波分别作用于体外培养的人骨髓基质细胞、骨膜细胞（上述细胞根据LIPUS每天作用时间再分为5min／d组，10min／d组及20min／d组），并于不同时问点检测其对细胞生长、分化等主要相关指标的影响。结果各LIPUS实验组骨髓基质细胞、骨膜细胞DNA合成量与空白对照组比较，差异均无统计学意义（P〉0．05）；骨膜细胞经LIPUS作用后，其ALP活性、骨钙素分泌水平及钙结节形成均显著增强（P〈0．05），而骨髓基质细胞经LIPUS作用后．其细胞分化标志物均无明显改变（P〉0．05）。结论LIPUS能够促进人骨膜细胞向成骨细胞分化，这可能是其促进骨折愈合的相关生物学机制之一。     

c-myc、c-myb基因在白血病骨髓基质细胞中的表达及相关性研究

本研究检测分析c-myc、c-myb原癌基因在白血病细胞和骨髓基质细胞(BMSC)中的表达及其相关性。用逆转录聚合酶链反应(RT-PCR)技术定量分析原癌基因c-myc、c-myb的表达水平,通过流式细胞术分析白血病细胞和BMSC的膜表面抗原,同时采用染色体显带技术分析细胞核型。结果表明:①c-myc、c-myb基因在白血病细胞及其BMSC中均有一定的表达,尤其是在染色体异常的白血病细胞中高表达,其均值分别为1.15±0.38和1.03±0.48,与对照组比较均具有统计学差异(P<0.05);在染色体异常的BMSC中其均值分别为2.08±0.82(P<0.05)和1.46±0.29(P<0.05);②在白血病细胞和BMSC中,c-myc mRNA、c-myb mRNA的表达水平均与血小板计数具有相关性;③在不同预后组中,c-myc mRNA、c-myb mRNA表达呈线性相关;④在白血病细胞及急性组BMSC中原癌基因c-myc、c-myb的表达存在正相关;⑤白血病细胞中c-myc的表达量分别与BMSC中c-myc、c-myb的表达量有相关性。结论:在白血病中降低c-myc或c-myb原癌基因的表达水平可能成为治疗白血病的一种治疗方案。     

Comparing the osteogenic potential of bone marrow and tendon‐derived stromal cells to repair a critical‐sized defect in the rat femur

Despite significant advancements in bone tissue‐engineering applications, the clinical impact of bone marrow stromal cells (BMSCs) for the treatment of large osseous defects remains limited. Therefore, other cell sources are under investigation for their osteogenic potential to repair bone. In this study, tendon‐derived stromal cells (TDSCs) were evaluated in comparison to BMSCs to support the functional repair of a 5 mm critical‐sized, segmental defect in the rat femur. Analysis of the trilineage differentiation capacity of TDSCs and BMSCs cultured on collagen sponges revealed impaired osteogenic differentiation and mineral deposition of TDSCs in vitro, whereas chondrogenic and adipogenic differentiation was evident for both cell types. Radiographic assessment demonstrated that neither cell type significantly improved the healing rate of a challenging 5 mm segmental femoral defect. Transplanted TDSCs and BMSCs both led to the formation of only small amounts of bone in the defect area, and histological evaluation revealed non‐mineralized, collagen‐rich scar tissue to be present within the defect area. Newly formed lamellar bone was restricted to the defect margins, resulting in closure of the medullary cavity. Interestingly, in comparison to BMSCs, significantly more TDSC‐derived cells were present at the osteotomy gap up to 8 weeks after transplantation and were also found to be located within newly formed lamellar bone, suggesting their capacity to directly contribute to de novo bone formation. To our knowledge, this is the first study investigating the in vivo capacity of TDSCs to regenerate a critical‐sized defect in the rat femur. Copyright © 2015 John Wiley & Sons, Ltd.     

雌二醇对骨髓基质细胞核结合因子α1基因及成骨细胞生成的影响

目的研究骨髓基质细胞在向成骨细胞分化的条件培养体系中, 17β-雌二醇( E2)对其核结合因子α 1 (Cbfα 1 )基因表达的影响,探讨雌二醇对成骨细胞生成的作用.方法取自 1只 3月龄雌性 SD大鼠骨髓基质细胞在生长培养基中传代后,用 1,25(OH)2D3和地塞米松( DEX)诱导骨髓基质细胞向成骨细胞分化.应用半定量 RT- PCR技术,观察不同浓度 E2对骨髓基质细胞分化过程中核结合因子α 1mRNA表达的影响,以α-磷酸奈酚为底物,测定细胞碱性磷酸酶的活性, Van Gieson染色法显示Ⅰ型胶原的含量.结果 E2能明显抑制骨髓基质细胞分化过程中 Cbfα 1 mRNA的表达,且呈剂量依赖性.E2浓度为 0,1× 10- 10, 1× 10- 8和 1× 10- 6mmol/L时, Cbfα 1 mRNA的表达量分别为 23.4%± 1.8%, 21.8%± 2.0%, 15.8%± 1.5% ( t=6.3, P< 0.01)和 5.8%± 0.8%( t=17.8, P< 0.01).Northern blot 结果显示 Cbfα 1 mRNA的表达量分别为 4.22± 0.11, 2.51± 0.12( t=21, P< 0.01), 1.88± 0.10( t=31, P< 0.01)和 1.17± 0.09( t=41, P< 0.01).ALP活性随 E2浓度增加而降低,在上述 E2浓度时, ALP活性分别为 (42.6± 2.5)U/g,(17.9± 2.0)U/g( t=15, P< 0.01) ,(10.8± 1.5) U/g( t=21, P< 0.01)和 (3.6± 0.7)U/g( t=29, P< 0.01).细胞Ⅰ型胶原的含量随 E2浓度增加而降低.结论 E2能明显抑制骨髓基质细胞分化过程中 Cbfα 1mRNA的表达,减少成骨细胞的生成.     

大鼠骨髓MSCs表面分子检测及诱导分化研究

目的通过建立大鼠骨髓间充质干细胞（MSCs）的体外分离培养方法，探讨大鼠MSCs表型特征以及多向分化潜能。方法利用密度梯度离心法结合贴壁培养法分离纯化SD大鼠骨髓MSCs，传代扩增，进行形态学观察，测定生长曲线。免疫细胞组织化学及流式细胞分析检测细胞表面分子的表达。定向诱导MSCs向脂肪细胞、成骨细胞及软骨细胞分化。结果原代分离的MSCs在接种后48h贴壁，细胞形态为椭圆形，多角形及短梭形，12天时细胞呈长梭形并达到90％单层融合。经传代扩增，细胞进一步纯化，细胞形态为均一的长梭形并呈漩涡状排列，而且生长速率加快，Pl代细胞群体倍增时间为20．3h。细胞免疫组化结果显示P2代细胞表面分子CD44、FN表达阳性，而CD14、CD34阴性，流式细胞检测CD44、FN阳性率分别为92．09％和90．55％。不同诱导剂定向诱导2周，经油红O、阿新兰及茜素红S染色鉴定，P3代MSCs分别向脂肪细胞，软骨细胞及成骨细胞分化。结论通过密度梯度离心结合贴壁筛选方法，体外分离培养的大鼠骨髓MSCs具有很强的增殖能力，并保持稳定的表型特征及多向分化潜能。     

Whatever their differentiation status,human progenitor derived – or mature – endothelial cells induce osteoblastic differentiation of bone marrow stromal cells

Association of the bone‐forming osteoblasts (OBs) and vascular endothelial cells (ECs) into a biomaterial composite provides a live bone graft substitute that can repair the bone defect when implanted. An intimate functional relationship exists between these cell types. This communication is crucial to the coordinated cell behaviour necessary for bone development and remodelling. Previous studies have shown that direct co‐culture of primary human osteoprogenitors (HOPs) with primary human umbilical vein endothelial cells (HUVECs) stimulates HOPs differentiation and induces tubular‐like networks. The present work aims to test the use of human bone marrow stromal cells (HBMSCs) co‐cultured with human endothelial progenitor cells in order to assess whether progenitor‐derived ECs (PDECs) could support osteoblastic differentiation as mature ECs do. Indeed, data generated from the literature by different laboratories considering these co‐culture systems appear difficult to compare. Monocultures of HUVECs, HOPs, HBMSCs (in a non‐orientated lineage), PDECs (from cord blood) were used as controls and four combinations of co‐cultures were undertaken: HBMSCs–PDECs, HBMSCs–HUVECs, HOPs–PDECs, HOPs–HUVECs with ECs (mature or progenitor) for 6 h to 7 days. At the end of the chosen co‐culture time, intracellular alkaline phosphatase (ALP) activity was detected in HOPs and HBMSCs and quantified in cell extracts. Quantitative real‐time polymerase chain reaction (qPCR) of ALP was performed over time and vascular endothelial growth factor (VEGF) was measured. After 21 days, calcium deposition was observed, comparing mono‐ and co‐cultures. We confirm that ECs induce osteoblastic differentiation of mesenchymal stem cells in vitro. Moreover, HUVECs can be replaced by PDECs, the latter being of great interest in tissue engineering. Copyright © 2012 John Wiley & Sons, Ltd.     

骨髓基质细胞体外诱导分化移植治疗大鼠脊髓损伤的活体示踪研究

目的研究利用超顺磁性氧化铁(PIO)标记大鼠骨髓基质细胞来源的神经细胞样细胞(神经干细胞及其分化的细胞)移植治疗大鼠脊髓损伤的可行性。方法体外条件下诱导MSCs向神经细胞样细胞分化,并用SPIO标记。实验动物分为3组:细胞移植组(A)、模型对照组(B)、正常对照组(C);A、B组采用改良Allen′s法建立大鼠急性脊髓损伤模型。伤后按照BBB法观察脊髓神经功能恢复情况,并于细胞移植后第1、3、5周行MRI检查。结果诱导7 d后有部分细胞具备神经细胞样细胞形态;细胞移植后1~5周,A、B组动物运动功能均有不同程度恢复,但B组恢复较慢,BBB评分差异有统计学意义(P<0.05);1.5 T MRI检查见移植处在T2WI序列呈低信号改变,第3周时低信号向损伤区扩大,第5周时可在损伤区见到低信号改变。结论bFGF、EGF和RA可以联合诱导BMSCs向神经细胞样细胞分化。将其移植于大鼠脊髓损伤区,MR技术可以活体追踪干细胞显示:随着损伤处移植细胞的生长和增殖,损伤的脊髓功能可逐渐恢复。     

1,25(OH)2D3对体外人骨髓基质细胞成脂及成骨分化的影响

目的观察1,25(OH)2D3对骨髓基质细胞(MSCs)的成脂及成骨分化的影响。方法以离心法分离培养人骨髓基质细胞(MSCs),以1,25(OH)2D3作为分化诱导剂对细胞进行干预,采用MTT法测细胞增殖率;测细胞浆碱性磷酸酶(ALP)含量,并用细胞碱性磷酸酶染液试剂盒及苏丹Ⅲ分别对成骨细胞和脂肪细胞进行组织化学染色,计数。结果1,25(OH)2D3干预8天后,实验组的吸光度值低于对照组,二者间有显著差异(P<001)。实验组经1,25(OH)2D3干预12天,胞浆ALP含量高于对照组,二者间的差异有显著性(P<001)。细胞染色结果表明实验组苏丹Ⅲ 细胞百分比较对照组减少,两组间有显著性差异(P<005);ALP 细胞百分比较对照组增加,二者间的差异有显著性(P<001)。结论1,25(OH)2D3对骨髓基质细胞增殖有轻度抑制作用,促进MSCs的成骨分化,抑制其成脂分化,同时上述结果也反映了成骨细胞与脂肪细胞间存在的反变关系,从而进一步表明二者来源于同一前体细胞的可能性。     

骨髓基质细胞-成骨细胞复合培养体系的建立

背景：在骨修复和重建过程中,成骨细胞和骨髓基质细胞是主要功能细胞,二者存在着密切的功能联系。目的：通过骨髓基质细胞一成骨细胞共育体系的建立,观察共育体系中两种细胞之间的功能影响及生物学特点。方法：原代分离人骨髓基质细胞和人成骨细胞,将2种细胞置于Transwell共育环境中共同培养,建立人骨髓基质细胞一成骨细胞共育体系。分别采用MTT、丫啶橙染色、碱性磷酸酶活性检测等方法初步评价共育体系中两种细胞增殖、凋亡及功能改变情况。结果与结论：在复合培养体系中,骨髓基质细胞一成骨细胞共育体系能够促进成骨细胞的增殖与碱性磷酸酶的活性,同时抑制骨髓基质细胞的凋亡,促进骨髓基质细胞的趋化聚集。结果提示在复合培养体系中,骨髓基质细胞能够加速成骨细胞的增殖及成骨活性,另外成骨细胞也可减少骨髓基质细胞的凋亡,并加强其成骨性分化的作用。两者之间具有较为紧密的影响和功能联系。     

In vitro and in vivo co‐culture of chondrocytes and bone marrow stem cells in photocrosslinked PCL–PEG–PCL hydrogels enhances cartilage formation

Chondrocytes (CH) and bone marrow stem cells (BMSCs) are sources that can be used in cartilage tissue engineering. Co‐culture of CHs and BMSCs is a promising strategy for promoting chondrogenic differentiation. In this study, articular CHs and BMSCs were encapsulated in PCL–PEG–PCL photocrosslinked hydrogels for 4 weeks. Various ratios of CH:BMSC co‐cultures were investigated to identify the optimal ratio for cartilage formation. The results thus obtained revealed that co‐culturing CHs and BMSCs in hydrogels provides an appropriate in vitro microenvironment for chondrogenic differentiation and cartilage matrix production. Co‐culture with a 1:4 CH:BMSC ratio significantly increased the synthesis of GAGs and collagen. In vivo cartilage regeneration was evaluated using a co‐culture system in rabbit models. The co‐culture system exhibited a hyaline chondrocyte phenotype with excellent regeneration, resembling the morphology of native cartilage. This finding suggests that the co‐culture of these two cell types promotes cartilage regeneration and that the system, including the hydrogel scaffold, has potential in cartilage tissue engineering. Copyright © 2013 John Wiley & Sons, Ltd.     

胎儿和成人骨髓间充质千细胞体外造血支持能力的比较

胎儿出生以后,造血干细胞(HSC)才从胎儿的肝脏和脾脏转移到骨髓,这一过程可能由不同的造血微环境中的信号分子所介导.间充质干细胞(MSC)是骨髓微环境中间质细胞如成骨细胞、内皮细胞的前体祖细胞.研究者推测,胎儿出生前的骨髓可能并不特别适合HSC生长.然而,该假说尚缺乏直接的证据支持.本研究通过对胎儿和成人骨髓MSC的造血支持能力进行比较,拟为此提供证据.成人骨髓MSC来源于3位健康供者,胎儿骨髓MSC来源于孕19-20周流产的胎儿.MSC辐照后与CD34+一起进行长期培养启动细胞分析,计数克隆形成细胞的数童,流式分析培养后CD34+的表型变化.RT-PCR分析两种MSC中细胞因子的表达.结果显示,成人骨髓MSC比胎儿骨髓MSC具有更强的造血支持能力,两者都促进CD34+向髓系细胞分化,两者之间细胞因子的表达存在差异.结论:与胎儿骨髓MSC相比,成人骨髓MSC在某些治疗,尤其是促进造血恢复方面具有更广泛的应用前景.     

Chitosan-poly(butylene succinate) scaffolds and human bone marrow stromal cells induce bone repair in a mouse calvaria model

Tissue engineering sustains the need of a three-dimensional (3D) scaffold to promote the regeneration of tissues in volume. Usually, scaffolds are seeded with an adequate cell population, allowing their growth and maturation upon implantation in vivo. Previous studies obtained by our group evidenced significant growth patterns and osteogenic differentiation of human bone marrow mesenchymal stem cells (hBMSCs) when seeded and cultured on melt-based porous chitosan fibre mesh scaffolds (cell constructs). Therefore, it is crucial to test the in vivo performance of these in vitro 3D cell constructs. In this study, chitosan-based scaffolds were seeded and cultured in vitro with hBMSCs for 3 weeks under osteogenic stimulation conditions and analysed for cell adhesion, proliferation and differentiation. Implantation of 2 weeks precultured cell constructs in osteogenic culture conditions was performed into critical cranial size defects in nude mice. The objective of this study was to verify the scaffold integration and new bone formation. At 8 weeks of implantation, scaffolds were harvested and prepared for micro-computed tomography (μCT) analysis. Retrieved implants showed good integration with the surrounding tissue and significant bone formation, more evident for the scaffolds cultured and implanted with human cells. The results of this work demonstrated that chitosan-based scaffolds, besides supporting in vitro proliferation and osteogenic differentiation of hBMSCs, induced bone formation in vivo. Thus, their osteogenic potential in orthotopic location in immunodeficient mice was validated, evidencing good prospects for their use in bone tissue-engineering therapies.     

Large‐scale expansion of pre‐isolated bone marrow mesenchymal stromal cells in serum‐free conditions

The regenerative potential of mesenchymal stromal or stem cells (MSCs) has generated tremendous interest for treating various degenerative diseases. Regulatory preference is to use a culture medium that is devoid of bovine components for stem cell expansion intended for therapeutic applications. However, a clear choice an alternative to fetal bovine serum (FBS) has not yet emerged. We have screened five different commercially available serum‐free media (SFM) for their ability to support the growth and expansion of pre‐isolated undifferentiated bone marrow‐derived MSCs (BM‐MSCs) and compared the results with cells grown in standard FBS‐containing medium as control. In addition, based on initial screening results, BD Mosaic? Mesenchymal Stem Cell Serum‐free (BD‐SFM) medium was evaluated in large‐scale cultures for the performance and culture characteristics of BM‐MSCs. Of the five different serum‐free media, BD‐SFM enhanced BM‐MSCs growth and expansion in Cell STACK (CS), but the cell yield per CS‐10 was less when compared to the control medium. The characteristics of MSCs were measured in terms of population doubling time (PDT), cell yield and expression of MSC‐specific markers. Significant differences were observed between BD‐SFM and control medium in terms of population doublings (PDs), cell yield, CFU‐F and morphological features, whereas surface phenotype and differentiation potentials were comparable. The BD‐SFM‐cultured MSCs were also found to retain the differentiation potential, immune‐privileged status and immunosuppressive properties inherent to MSCs. Our results suggest that BD‐SFM supports large‐scale expansion of BM‐MSCs for therapeutic use. Copyright © 2014 John Wiley & Sons, Ltd.