摘要
环鸟苷酸-腺苷酸合成酶(cGAS)是近年新发现的一种细胞内DNA感受器,能催化合成环鸟苷酸-腺苷酸激活干扰素基因刺激蛋白(STING),进而引起一系列下游分子激活,最终诱导产生Ⅰ型干扰素(IFN)。越来越多的研究证明cGAS-STING信号通路在固有免疫过程中发挥重要作用。cGAS-STING信号通路参与识别进入胞内微生物的DNA及自身DNA,并在感染性疾病和自身免疫性疾病发病过程中发挥重要作用。本文就对cGAS-STING信号通路与感染性及自身免疫性疾病的相关性研究进展进行综述。
引文
[1]Kato K,Omura H,Ishitani R,et al.Cyclic GMP-AMP as an Endogenous Second Messenger in Innate Immune Signaling by Cytosolic DNA[J].Annu Rev Biochem,2017,86(1):541-566.
[2]Schoggins JW,Wilson SJ,Panis M,et al.A diverse range of gene products are effectors of the type I interferon antiviral response[J].Nature,2011,472(7 344):481-485.
[3]Kranzusch PJ,Lee AS,Berger JM,et al.Structure of human c GAS reveals a conserved family of second-messenger enzymes in innate immunity[J].Cell Rep,2013,3(5):1 362-1 368.
[4]Diner EJ,Burdette DL,Wilson SC,et al.The innate immune DNA sensor c GAS produces a noncanonical cyclic dinucleotide that activates human STING[J].Cell Rep,2013,3(5):1 355-1 361.
[5]Broz P,Monack DM.Newly described pattern recognition receptors team up against intracellular pathogens[J].Nat Rev Immunol,2013,13(8):551-565.
[6]Tanaka Y,Chen ZJ.STING specifies IRF3 phosphorylation by TBK1 in the cytosollic DNA signaling pathway[J].Sci signal,2012,5(214):ra20.
[7]Ishikawa H,Barber GN.STING is an endoplasmic reticulum adaptor that facilitates innate immune signalling[J].Nature,2008,455(7 213):674-678.
[8]Konno H,Konno K,Barber GN.Cyclic dinucleotides trigger ULK1(ATG1)phosphorylation of STING to prevent sustained innate immune signaling[J].Cell,2013,155(3):688-698.
[9]Liang QM,Seo GJ,Choi YJ,et al.Crosstalk between the c GAS DNA sensor and Beclin-1 autophagy protein shapes innate antimicrobial immune responses[J].Cell Host Microbe,2014,15(2):228-238.
[10]Goubau D,Deddouche S,Reise Sousa C.Cytosolic sensing of viruses[J].Immunity,2013,38(5):855-869.
[11]Gao DX,Li T,Li XD,et al.Activation of cyclic GMP-AMP synthase by self-DNA causes autoimmune diseases[J].Proc Natl Acad Sci U S A,2015,112(42):E5 699-E5 705.
[12]Hasan M,Koch J,Rakheja D,et al.Trex1 regulates lysosomal biogenesis and interferon-independent activation of antiviral genes[J].Nat Immunol,2013,14(1):61-71.
[13]Kawane K,Ohtani M,Miwa K,et al.Chronic polyarthritis caused by mammalian DNA that escapes from degradation in macrophages[J].Nature,2006,443(7 114):998-1 002.
[14]Manel N,Hogstad B,Wang YM,et al.A cryptic sensor for HIV-1 activates antiviral innate immunity in dendritic cells[J].Nature,2010,467(7 312):214-217.
[15]Gao D,Wu J,Wu YT,et al.Cyclic GMP-AMP synthase is an innate immune sensor of HIV and other retroviruses[J].Science,2013,341(6 148):903-906.
[16]Nissen SK,Hojen JF,Andersen K,et al.Innate DNA sensing is impaired in HIV patients and IFI16 expression correlates with chronic immune activation[J].Clin Exp Immunol,2014,177(1):295-309.
[17]Laguette N,Sobhian B,Casartelli N,et al.SAMHD1 is the dendritic-and myeloid-cell-specific HIV-1 restriction factor counteracted by Vpx[J].Nature,2011,474(7 353):654-657.
[18]Maelfait J,Bridgeman A,Benlahrech A,et al.Restriction by SAMHD1 limits c GAS/STING-dependent innate and adaptive immune responses to HIV-1[J].Cell Rep,2016,16(6):1 492-1 501.
[19]Yoh SM,Schneider M,Seifried JA,et al.PQBP1 is a proximal sensor of the c GAS-dependent innate response to HIV-1[J].Cell,2015,161(6):1 293-1 305.
[20]Vermeire J,Roesch F,Sauter D,et al.HIV triggers a c GASdependent,Vpu-and Vpr-regulated typeⅠinterferon response in CD4+T cells[J].Cell Rep,17(2):413-424.
[21]Sun LJ,Wu JX,Du FH,et al.Cyclic GMP-AMP synthase is a cytosolic DNA sensor that activates the typeⅠinterferon pathway[J].Science,2013,339(6 121):786-791.
[22]Orzalli MH,Broekema NM,Diner BA,et al.c GAS-mediated stabilization of IFI16 promotes innate signaling during herpes simplex virus infection[J].Proc Natl Acad Sci U S A,2015,112(14):E1 773-E1 781.
[23]Li XD,Wu J,Gao D,et al.Pivotal roles of c GAS-c GAMP signaling in antiviral defense and immune adjuvant effects[J].Science,2013,341(6 152):1 390-1 394.
[24]Zhou Q,Lin H,Wang SY,et al.The ER-associated protein ZDHHC1 is a positive regulator of DNA virus-triggered,MITA/STING-dependent innate immune signaling[J].Cell Host Microbe,2014,16(4):450-461.
[25]Collins AC,Cai H,Li T,et al.Cyclic GMP-AMP synthase is an innate immune DNA sensor for mycobacterium tuberculosis[J].Cell Host Microbe,2015,17(6):820-828.
[26]Wu JJ,Li WW,Shao YM,et al.Inhibition of c GAS DNA sensing by a herpesvirus virion protein[J].Cell Host Microbe,2015,18(3):333-344.
[27]Liu Y,Jesus AA,Marrero B,et al.Activated STING in a vascular and pulmonary syndrome[J].N Engl J Med,2014,371(6):507-518.
[28]Sharma S,Campbell AM,Chan J,et al.Supression of systemic autoimmunity by the systemtic autoimmunity by the innate immunity adaptor STING[J].Proc Natl Acad Sci U S A,2015,112(7):E 710-717.
[29]Crow YJ,Hayward BE,Parmar R,et al.Mutations in the gene encoding the 3'-5'DNA exonuclease TREX1 cause Aicardi-Goutieres syndrome at the AGS1 locus[J].Nat Genet,2006,38(8):917-920.
[30]Yang H,Wang HZ,Ren JY,et al.c GAS is essential for cellular senescence[J].Proc Natl Acad Sci U S A,2017,114(23):E4 612-E4 620.
[31]Wang H,Hu SQ,Chen X,et al.c GAS is essential for the antitumor effect of immune checkpoint blockade[J].Proc Natl Acad Sci U S A,2017,114(7):1 637-1 642.