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成骨分化的骨髓间充质干细胞的免疫原性 被引量:3

Immunogenicity of Osteogenic Differentiated Mesenchymal Stem Cells
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摘要 目的:骨髓间充质干细胞(mesenchymal stemcells,MSC)具有多向分化潜能,又因其低免疫原性,成为细胞移植治疗的良好选择。本实验室前期实验表明猪MSC具有低免疫原性和免疫调节作用,而猪MSC在人体内微环境中,将自动分化。本试验研究猪MSC在体外诱导分化后是否还能维持其低免疫原性,仍具有免疫调节作用。方法:MSC细胞从近交系版纳微型猪骨髓中分离获得,转入SV40基因,进行永生化。再用β-甘油磷酸钠、地塞米松、抗坏血酸磷酸盐等体外诱导其分化为成骨细胞,以未分化MSC为对照,用RT-PCR法检测分化MSC的主要组织相容性抗原(swine lymphocyte antigen classⅠ、classⅡ,SLAⅠ、SLAⅡ)的表达情况,用单向混合淋巴细胞反应(MLR)的方法检测分化MSC是否仍不能引起人外周血淋巴细胞(human peripheral blood lymphocyte,hPBL)的增殖反应。结果:RT-PCR结果显示未分化MSC只有SLAⅠ表达;分化MSC既有SLAⅠ,也有SLAⅡ的表达,但很低。这一结果支持MSC的低免疫原性特性。混培结果也显示分化猪MSC与未分化猪MSC一样都不引起hPBL增殖反应。结论:分化和未分化猪MSC均不引起人淋巴细胞增殖反应,具有低免疫原性。提示猪MSC移植到人可能不会被排斥。 Mesenchymal stem cells(MSCs)is a good choice for cell transplantation for its multilineage differentiation ability and low immunogenicity.Our previous studies in vitro indicated that undifferentiated MSCs of swine are low immunogenic and could suppress proliferative response of human peripheral blood lymphocyte to several antigens.In this study,we investigated the immunogenicity of osteogenic differentiated MSCs.SLA class Ⅰ(P1,P14)expressed on both differentiated and undifferentiated MSCs was detectable by ...
出处 《华西医学》 CAS 2007年第4期816-817,共2页 West China Medical Journal
基金 国家自然科学基金资助项目(G30200065 G30270679)
关键词 骨髓间充质干细胞 主要组织相容性抗原 免疫原性 Mesenchymal stem cells SLA Immunogenicity
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参考文献6

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同被引文献32

  • 1张晓玲,戴尅戎,汤亭亭,张超,周芸,周光炎.未分化骨髓间充质干细胞的免疫学特性研究[J].中华实验外科杂志,2006,23(2):135-137. 被引量:29
  • 2刘沉涛,杨于嘉,谢岷,余小河,王霞,王晓莉,王庆红,祁伯祥.源于间充质干细胞的神经细胞抑制异体T淋巴细胞增生的实验研究[J].中华神经医学杂志,2006,5(10):978-981. 被引量:4
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  • 10Yazdani SO, Pedram M, Hafizi M, et al. A comparison between neurally induced bone marrow derived mesenchymal stem cells and olfactory ensheathing glM cells to repair spinal cord injuries in rat [ J ]. Tissue Cell,2012,44 (4) :205 - 213.

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