摘要
目的比较不同类型干细胞分泌细胞因子的水平,探讨其潜在的临床意义。方法建立人类胚胎干细胞(hESCs)、脐带间充质干细胞(UMSCs)、羊膜间充质干细胞(AMSCs)株系;实时荧光定量聚合酶链反应(RT-qPCR)分析干细胞分泌细胞因子水平:(1)促炎因子,包括白细胞介素-6(IL-6)、白细胞介素-8(IL-8)和肿瘤坏死因子(TNF-α);(2)抑炎因子白细胞介素-10(IL-10);(3)生长因子,包括肝细胞生长因子(HGF)、脑源性神经营养因子(BDNF)、干细胞因子(SCF)和血管内皮生长因子(VEGF);(4)基质金属蛋白酶MMP-1及其抑制剂TIMP-1;(5)血管形成因子(Angiogenin),白血病抑制因子(LIF)以及骨形成蛋白(BMP4)。结果女性UMSCs分泌生长因子、血管生成因子、造血因子、抑炎因子等的能力显著强于hESCs、AMSCs(P<0.05);女性hESCs、男性UMSCs分泌金属蛋白酶的水平显著高于其它干细胞(P<0.05)。结论女性UMSCs可能具有更好的促进细胞生长、改善血供的能力;而女性hESCs、男性UMSCs则可能具有更强的降解结缔组织的能力。
Objective: To compare the expression levels of secretory cytokine in different type of stem cell,and explore their clinical significance.Methods: The cell lines of human embryonic stem cells(hESCs),umbilical cord mesenchymal stem cells(UMSCs)and amniotic mesenchymal stem cells(AMSCs)were established and identified.The expressions of secretory cytokines,such as:(1)pro-inflammatory factors of IL-6,IL-8and TNF-α;(2)antiinflammatory factor of IL-10;(3) Growth factors(HGF,BDNF,SCF and VEGF);(4) matrix metalloprotein(MMP-1)and its inhibitor TIMP-1;(5)angiogenic factor,LIF and BMP4 were determined by real-time fluorescent quantitative polymerase chain reaction(RT-qPCR).Results: The expresses of growth factors,angiogenic factor,LIF and IL-10 in female UMSCs were significantly higher than those in hESCs and AMSCs(P〈0.05).The expressions of MMP-1in female hESCs and male UMSCs were significantly higher than those in other stem cell lines(P〈0.05).Conclusions: Female UMSCs may have stronger capacity to promote cell growth and improve blood supply.Female hESCs and male UMSCs may be more powerful in degradation of connective tissue.
出处
《生殖医学杂志》
CAS
2016年第6期528-539,共12页
Journal of Reproductive Medicine
基金
973项目(2012CB944902)
国家自然科学基金(81370764
81370754)
江苏省科技厅项目(BL2012009
BM201358)
卫生厅项目(ZX201110)
关键词
人胚胎干细胞
人羊膜间充质干细胞
人脐带间充质干细胞
细胞分泌因子
Human embryonic stem cell
Human amniotic mesenchymal stem cell
Human umbilical cord mesenchymal stem cell
Secretory cytokine