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炎性条件下PD-L1敲除小鼠星形胶质细胞的活化和增殖能力降低

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摘要 目的观察炎性条件下程序性死亡蛋白配体1(PD-L1)敲除小鼠皮层来源的星形胶质细胞(AS)的增殖和活化情况。方法制备PD-L1敲除小鼠模型,分离出野生型和PD-L1敲除小鼠皮层AS,用100 ng/m L脂多糖(LPS)联合100 ng/m Lγ-干扰素(IFN-γ)刺激,免疫细胞化学染色和实时定量PCR检测野生型和PD-L1敲除小鼠来源的AS的胶质纤维酸性蛋白(GFAP)、波形蛋白(vimentin)、S100钙结合蛋白B(S100β)、bystin、神经上皮干细胞蛋白(nestin)、一氧化氮合成酶2(NOS2)、CC趋化因子配体5(CCL5)、白细胞介素6(IL-6)、集落刺激因子2(CSF2)、丝氨酸蛋白酶抑制剂A3n(Serpin A3n)和脂质运载蛋白2(Lcn2)的改变。结果 LPS联合IFN-γ刺激可明显促进AS的PD-L1的表达,PD-L1敲除小鼠AS的骨架结构较野生型AS存在差异。敲除小鼠AS的GFAP、vimentin、S100β、bystin mRNA水平较野生型AS明显下调,nestin mRNA水平无明显差异,但PD-L1敲除小鼠AS的增殖水平低于野生型AS。LPS联合IFN-γ刺激增加NOS2、CCL5、IL-6 mRNA的表达水平、但CSF2、Serpin A3n和Lcn2 mRNA无明显变化。结论炎性条件下PD-L1敲除小鼠星形胶质细胞的活化与增殖水平较野生型AS下降。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2016年第5期640-645,共6页 Chinese Journal of Cellular and Molecular Immunology
基金 国家自然科学基金青年项目(8140051096)
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参考文献27

  • 1Buffo A, Rolando C, Ceruti S. Astrocytes in the damaged brain: molecular and cellular insights into their reactive response and healing potential[J].Biochem Pharmacol, 2010, 79 (2) : 77 - 89.
  • 2Karimi-Abdolrezaee S, Billakanti R. Reactive astrogliosis 'after spinal cord injury-beneficial and detrimental effects [J]. Mol Neurobiol, 2012, 46(2) : 251 -264.
  • 3Sofroniew M V. Astrogliosis [ J/OL ]. Cold Spring Harb PerspectBiol, 2014, 7(2) : a020420, doi: 10. llO1/eshperspeet, a020420.
  • 4Burda J E, Bemstein A M, Sofroniew M V. Astrocyte roles in traumatic brain injury [ J ]. Exp Neurol, 2016, 275 ( Pt3 ) : 305 -315.
  • 5Wanner I B, Anderson M A, Song B, et al. Glial scar borders are formed by newly proliferated, elongated astrocytes that interact to corral inflammatory and fibrotic cells v/a STAT3-dependent mechanisms after spinal cord injury [ J ]. J Neurosci, 2013, 33(31) : 12870 - 12886.
  • 6Kang W, Hebert J M. Signaling pathways in reactive astrocytes, a genetic perspective[J]. Mol Neurobiol, 2011,43(3) : 147 -154.
  • 7Gianchecchi E, Delfino D V, Fierabracci A. Recent insights into the role of the PD-1/PD-L1 pathway in immunological tolerance and autoimmunity[ J]. Autoimmun Rev, 2013, 12(11 ) : 1091 - 1100.
  • 8Francisco L M, Sage P T, Sharpe A H. The PD-1 pathway in tolerance and autoimmunity[ J]. Immunol Rev, 2010, 236:219-242.
  • 9唐亮,于才勇,冯睿,刘芳芳,赵宇,郭宏敏,鞠躬,王键.PD-L1转基因小鼠的建立及其脊髓损伤后的运动功能恢复[J].细胞与分子免疫学杂志,2011,27(4):357-359. 被引量:2
  • 10Zamanian J L, Xu L, Foo L C, et al. Genomic analysis of reactive astrogliosis[ J]. J Neurosci, 2012, 32 (18) : 6391 -6410.

二级参考文献14

  • 1Sharpe AH,Wherry EJ,Ahmed R,et al.The function of programmed cell death 1 and its ligands in regulating autoimmunity and infection[J].Nat Immunol,2007,8(3):239-245.
  • 2Palmiter RD,Brinster RL,Hammer RE,et al.Dranatic growth of mice that develop from eggs microinjected with metallothionein-growth hormone fusion gence[J].Nature,1982,300(5893):611-615.
  • 3Nagy A,Gertsenstein M,Yintersten K,et al.Manipulating the Mouse Embryo:A Laboratory Manual[M].3rd ed.New York:Cold Spring Harbor Labortory Press,2003:221-256.
  • 4Plemel JR,Duncan G.A graded forceps crush spinal cord injury model in mice[J].Neurotrauma,2008,25(4):350-370.
  • 5Basso DM,Beattie MS,Bresnahan JC.MASCLS evaluation of open field locomotor scores:effects of experience and teamwork on reliability[J].Ncorotroma,1996,13(7):343-359.
  • 6Donnell DJ,Popovich PC,.Inflammation and its role in neuroprotection,axonal regeneration and functional recovery after spinal cord injury[J].Exp Neuol,2008,209(2):378-388.
  • 7Huang,Fabienne V,Yvonne L,et al.PD-1 expression by macrophages plays a pathologic role in altering microbial clearance and the innate inflammatory response to sepsis[J].PNAS,2009,106(15):6303-6308.
  • 8辛利军,焦志军,丁庆,路丽明,周芸,周光炎.B7-H1协同刺激淋巴细胞增殖并诱导产生抑制性T细胞[J].中国免疫学杂志,2007,23(8):680-683. 被引量:4
  • 9陈良恩,芮丽,王福生(审校).B7-H1/PD-1共刺激途径与病毒感染[J].国际免疫学杂志,2008,31(3):187-191. 被引量:5
  • 10刘书漫,刘国红,张钦宪,刘占举.B7-H1在结肠癌组织中的表达及意义[J].世界华人消化杂志,2009,17(8):841-843. 被引量:7

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