메뉴 건너뛰기




Volumn 87, Issue 5, 2013, Pages 2376-2389

Transgenic CCL2 expression in the central nervous system results in a dysregulated immune response and enhanced lethality after coronavirus infection

Author keywords

[No Author keywords available]

Indexed keywords

CD40 ANTIGEN; CD86 ANTIGEN; MAJOR HISTOCOMPATIBILITY ANTIGEN CLASS 2; MONOCYTE CHEMOTACTIC PROTEIN 1; NITRIC OXIDE; TRANSCRIPTION FACTOR FOXP3;

EID: 84874737246     PISSN: 0022538X     EISSN: 10985514     Source Type: Journal    
DOI: 10.1128/JVI.03089-12     Document Type: Article
Times cited : (32)

References (55)
  • 3
    • 77649273140 scopus 로고    scopus 로고
    • Role of chemokines in CNS health and pathology: a focus on the CCL2/CCR2 and CXCL8/CXCR2 networks
    • Semple BD, Kossmann T, Morganti-Kossmann MC. 2010. Role of chemokines in CNS health and pathology: a focus on the CCL2/CCR2 and CXCL8/CXCR2 networks. J. Cereb. Blood Flow Metab. 30:459-473.
    • (2010) J. Cereb. Blood Flow Metab. , vol.30 , pp. 459-473
    • Semple, B.D.1    Kossmann, T.2    Morganti-Kossmann, M.C.3
  • 4
    • 0038796526 scopus 로고    scopus 로고
    • Overexpression of monocyte chemoattractant protein 1 in the brain exacerbates ischemic brain injury and is associated with recruitment of inflammatory cells
    • Chen Y, Hallenbeck JM, Ruetzler C, Bol D, Thomas K, Berman NE, Vogel SN. 2003. Overexpression of monocyte chemoattractant protein 1 in the brain exacerbates ischemic brain injury and is associated with recruitment of inflammatory cells. J. Cereb. Blood Flow Metab. 23:748-755.
    • (2003) J. Cereb. Blood Flow Metab. , vol.23 , pp. 748-755
    • Chen, Y.1    Hallenbeck, J.M.2    Ruetzler, C.3    Bol, D.4    Thomas, K.5    Berman, N.E.6    Vogel, S.N.7
  • 5
    • 0037300319 scopus 로고    scopus 로고
    • The role of MCP-1 (CCL2) and CCR2 in multiple sclerosis and experimental autoimmune encephalomyelitis (EAE)
    • Mahad DJ, Ransohoff RM. 2003. The role of MCP-1 (CCL2) and CCR2 in multiple sclerosis and experimental autoimmune encephalomyelitis (EAE). Semin. Immunol. 15:23-32.
    • (2003) Semin. Immunol. , vol.15 , pp. 23-32
    • Mahad, D.J.1    Ransohoff, R.M.2
  • 6
    • 0347407828 scopus 로고    scopus 로고
    • CCL2 transgene expression in the central nervous system directs diffuse infiltration of CD45high CD11b+ monocytes and enhanced Theiler's murine encephalomyelitis virus-induced demyelinating disease
    • Bennett JL, Elhofy A, Canto MC, Tani M, Ransohoff RM, Karpus WJ. 2003. CCL2 transgene expression in the central nervous system directs diffuse infiltration of CD45high CD11b+ monocytes and enhanced Theiler's murine encephalomyelitis virus-induced demyelinating disease. J. Neurovirol. 9:623-636.
    • (2003) J. Neurovirol. , vol.9 , pp. 623-636
    • Bennett, J.L.1    Elhofy, A.2    Canto, M.C.3    Tani, M.4    Ransohoff, R.M.5    Karpus, W.J.6
  • 11
    • 0030588642 scopus 로고    scopus 로고
    • Role of monocyte chemoattractant protein-1 (MCP-1) in Th1 (mycobacterial) and Th2 (schistosomal) antigen-induced granuloma formation: relationship to local inflammation, Th cell expression, and IL-12 production
    • Chensue SW, Warmington KS, Ruth JH, Sanghi PS, Lincoln P, Kunkel SL. 1996. Role of monocyte chemoattractant protein-1 (MCP-1) in Th1 (mycobacterial) and Th2 (schistosomal) antigen-induced granuloma formation: relationship to local inflammation, Th cell expression, and IL-12 production. J. Immunol. 157:4602-4608.
    • (1996) J. Immunol. , vol.157 , pp. 4602-4608
    • Chensue, S.W.1    Warmington, K.S.2    Ruth, J.H.3    Sanghi, P.S.4    Lincoln, P.5    Kunkel, S.L.6
  • 12
    • 0035260758 scopus 로고    scopus 로고
    • Chemokines as regulators of T cell differentiation
    • Luther SA, Cyster JG. 2001. Chemokines as regulators of T cell differentiation. Nat. Immunol. 2:102-107.
    • (2001) Nat. Immunol. , vol.2 , pp. 102-107
    • Luther, S.A.1    Cyster, J.G.2
  • 13
    • 0035911254 scopus 로고    scopus 로고
    • Absence of monocyte chemoattractant protein 1 in mice leads to decreased local macrophage recruitment and antigen-specific T helper cell type 1 immune response in experimental autoimmune encephalomyelitis
    • Huang DR, Wang J, Kivisakk P, Rollins BJ, Ransohoff RM. 2001. Absence of monocyte chemoattractant protein 1 in mice leads to decreased local macrophage recruitment and antigen-specific T helper cell type 1 immune response in experimental autoimmune encephalomyelitis. J. Exp. Med. 193:713-726.
    • (2001) J. Exp. Med. , vol.193 , pp. 713-726
    • Huang, D.R.1    Wang, J.2    Kivisakk, P.3    Rollins, B.J.4    Ransohoff, R.M.5
  • 14
    • 0033807680 scopus 로고    scopus 로고
    • CC chemokine receptor 2 is critical for induction of experimental autoimmune encephalomyelitis
    • Fife BT, Huffnagle GB, Kuziel WA, Karpus WJ. 2000. CC chemokine receptor 2 is critical for induction of experimental autoimmune encephalomyelitis. J. Exp. Med. 192:899-905.
    • (2000) J. Exp. Med. , vol.192 , pp. 899-905
    • Fife, B.T.1    Huffnagle, G.B.2    Kuziel, W.A.3    Karpus, W.J.4
  • 15
    • 0034704593 scopus 로고    scopus 로고
    • Control of TH2 polarization by the chemokine monocyte chemoattractant protein-1
    • Gu L, Tseng S, Horner RM, Tam C, Loda M, Rollins BJ. 2000. Control of TH2 polarization by the chemokine monocyte chemoattractant protein-1. Nature 404:407-411.
    • (2000) Nature , vol.404 , pp. 407-411
    • Gu, L.1    Tseng, S.2    Horner, R.M.3    Tam, C.4    Loda, M.5    Rollins, B.J.6
  • 17
    • 84857733624 scopus 로고    scopus 로고
    • Pancreatic islet expression of chemokine CCL2 suppresses autoimmune diabetes via tolerogenic CD11c+ CD11b+ dendritic cells
    • Kriegel MA, Rathinam C, Flavell RA. 2012. Pancreatic islet expression of chemokine CCL2 suppresses autoimmune diabetes via tolerogenic CD11c+ CD11b+ dendritic cells. Proc. Natl. Acad. Sci. U. S. A. 109:3457-3462.
    • (2012) Proc. Natl. Acad. Sci. U. S. A. , vol.109 , pp. 3457-3462
    • Kriegel, M.A.1    Rathinam, C.2    Flavell, R.A.3
  • 19
    • 0031975791 scopus 로고    scopus 로고
    • Dynamic regulation of alpha-and beta-chemokine expression in the central nervous system during mouse hepatitis virus-induced demyelinating disease
    • Lane TE, Asensio VC, Yu N, Paoletti AD, Campbell IL, Buchmeier MJ. 1998. Dynamic regulation of alpha-and beta-chemokine expression in the central nervous system during mouse hepatitis virus-induced demyelinating disease. J. Immunol. 160:970-978.
    • (1998) J. Immunol. , vol.160 , pp. 970-978
    • Lane, T.E.1    Asensio, V.C.2    Yu, N.3    Paoletti, A.D.4    Campbell, I.L.5    Buchmeier, M.J.6
  • 20
    • 7044237250 scopus 로고    scopus 로고
    • Differential roles of CCL2 and CCR2 in host defense to coronavirus infection
    • Held KS, Chen BP, Kuziel WA, Rollins BJ, Lane TE. 2004. Differential roles of CCL2 and CCR2 in host defense to coronavirus infection. Virology 329:251-260.
    • (2004) Virology , vol.329 , pp. 251-260
    • Held, K.S.1    Chen, B.P.2    Kuziel, W.A.3    Rollins, B.J.4    Lane, T.E.5
  • 21
    • 77951494843 scopus 로고    scopus 로고
    • Monocytes regulate T cell migration through the glia limitans during acute viral encephalitis
    • Savarin C, Stohlman SA, Atkinson R, Ransohoff RM, Bergmann CC. 2010. Monocytes regulate T cell migration through the glia limitans during acute viral encephalitis. J. Virol. 84:4878-4888.
    • (2010) J. Virol. , vol.84 , pp. 4878-4888
    • Savarin, C.1    Stohlman, S.A.2    Atkinson, R.3    Ransohoff, R.M.4    Bergmann, C.C.5
  • 22
    • 0035887925 scopus 로고    scopus 로고
    • Lack of CCR2 results in increased mortality and impaired leukocyte activation and trafficking following infection of the central nervous system with a neurotropic coronavirus
    • Chen BP, Kuziel WA, Lane TE. 2001. Lack of CCR2 results in increased mortality and impaired leukocyte activation and trafficking following infection of the central nervous system with a neurotropic coronavirus. J. Immunol. 167:4585-4592.
    • (2001) J. Immunol. , vol.167 , pp. 4585-4592
    • Chen, B.P.1    Kuziel, W.A.2    Lane, T.E.3
  • 23
    • 0028841168 scopus 로고
    • Controlled recruitment of monocytes and macrophages to specific organs through transgenic expression of monocyte chemoattractant protein-1
    • Fuentes ME, Durham SK, Swerdel MR, Lewin AC, Barton DS, Megill JR, Bravo R, Lira SA. 1995. Controlled recruitment of monocytes and macrophages to specific organs through transgenic expression of monocyte chemoattractant protein-1. J. Immunol. 155:5769-5776.
    • (1995) J. Immunol. , vol.155 , pp. 5769-5776
    • Fuentes, M.E.1    Durham, S.K.2    Swerdel, M.R.3    Lewin, A.C.4    Barton, D.S.5    Megill, J.R.6    Bravo, R.7    Lira, S.A.8
  • 24
    • 31544476315 scopus 로고    scopus 로고
    • Coronavirus infection of the central nervous system: host-virus stand-off
    • Bergmann CC, Lane TE, Stohlman SA. 2006. Coronavirus infection of the central nervous system: host-virus stand-off. Nat. Rev. Microbiol. 4:121-132.
    • (2006) Nat. Rev. Microbiol. , vol.4 , pp. 121-132
    • Bergmann, C.C.1    Lane, T.E.2    Stohlman, S.A.3
  • 25
    • 0034978123 scopus 로고    scopus 로고
    • Axonal damage is T cell mediated and occurs concomitantly with demyelination in mice infected with a neurotropic coronavirus
    • Dandekar AA, Wu GF, Pewe L, Perlman S. 2001. Axonal damage is T cell mediated and occurs concomitantly with demyelination in mice infected with a neurotropic coronavirus. J. Virol. 75:6115-6120.
    • (2001) J. Virol. , vol.75 , pp. 6115-6120
    • Dandekar, A.A.1    Wu, G.F.2    Pewe, L.3    Perlman, S.4
  • 26
    • 0032845113 scopus 로고    scopus 로고
    • Macrophage infiltration, but not apoptosis, is correlated with immune-mediated demyelination following murine infection with a neurotropic coronavirus
    • Wu GF, Perlman S. 1999. Macrophage infiltration, but not apoptosis, is correlated with immune-mediated demyelination following murine infection with a neurotropic coronavirus. J. Virol. 73:8771-8780.
    • (1999) J. Virol. , vol.73 , pp. 8771-8780
    • Wu, G.F.1    Perlman, S.2
  • 27
    • 18744390313 scopus 로고    scopus 로고
    • -/- mice infected with a neurotropic coronavirus
    • -/- mice infected with a neurotropic coronavirus. J. Virol. 79:7113-7120.
    • (2005) J. Virol. , vol.79 , pp. 7113-7120
    • Kim, T.S.1    Perlman, S.2
  • 28
    • 0023098948 scopus 로고
    • Late onset, symptomatic, demyelinating encephalomyelitis in mice infected with MHV-JHM in the presence of maternal antibody
    • Perlman S, Schelper R, Bolger E, Ries D. 1987. Late onset, symptomatic, demyelinating encephalomyelitis in mice infected with MHV-JHM in the presence of maternal antibody. Microb. Pathog. 2:185-194.
    • (1987) Microb. Pathog. , vol.2 , pp. 185-194
    • Perlman, S.1    Schelper, R.2    Bolger, E.3    Ries, D.4
  • 29
    • 77950799203 scopus 로고    scopus 로고
    • De novo recruitment of antigenexperienced and naive T cells contributes to the long-term maintenance of antiviral T cell populations in the persistently infected central nervous system
    • Zhao J, Zhao J, Perlman S. 2009. De novo recruitment of antigenexperienced and naive T cells contributes to the long-term maintenance of antiviral T cell populations in the persistently infected central nervous system. J. Immunol. 183:5163-5170.
    • (2009) J. Immunol. , vol.183 , pp. 5163-5170
    • Zhao, J.1    Zhao, J.2    Perlman, S.3
  • 30
    • 0034664053 scopus 로고    scopus 로고
    • CD4 and CD8 T cells have redundant but not identical roles in virus-induced demyelination
    • Wu GF, Dandekar AA, Pewe L, Perlman S. 2000. CD4 and CD8 T cells have redundant but not identical roles in virus-induced demyelination. J. Immunol. 165:2278-2286.
    • (2000) J. Immunol. , vol.165 , pp. 2278-2286
    • Wu, G.F.1    Dandekar, A.A.2    Pewe, L.3    Perlman, S.4
  • 31
    • 33144463727 scopus 로고    scopus 로고
    • Preferential infection of mature dendritic cells by mouse hepatitis virus strain JHM
    • Zhou H, Perlman S. 2006. Preferential infection of mature dendritic cells by mouse hepatitis virus strain JHM. J. Virol. 80:2506-2514.
    • (2006) J. Virol. , vol.80 , pp. 2506-2514
    • Zhou, H.1    Perlman, S.2
  • 32
    • 0031590672 scopus 로고    scopus 로고
    • Quantification of cytokine mRNA expression by RT-PCR in samples of previously frozen blood
    • Kruse N, Pette M, Toyka K, Rieckmann P. 1997. Quantification of cytokine mRNA expression by RT-PCR in samples of previously frozen blood. J. Immunol. Methods 210:195-203.
    • (1997) J. Immunol. Methods , vol.210 , pp. 195-203
    • Kruse, N.1    Pette, M.2    Toyka, K.3    Rieckmann, P.4
  • 34
    • 84866364390 scopus 로고    scopus 로고
    • The anatomical and cellular basis of immune surveillance in the central nervous system
    • Ransohoff RM, Engelhardt B. 2012. The anatomical and cellular basis of immune surveillance in the central nervous system. Nat. Rev. Immunol. 12:623-635.
    • (2012) Nat. Rev. Immunol. , vol.12 , pp. 623-635
    • Ransohoff, R.M.1    Engelhardt, B.2
  • 35
    • 80053277573 scopus 로고    scopus 로고
    • Defining the anatomical localization of subsets of the murine mononuclear phagocyte system using integrin alpha X (Itgax, CD11c) and colony-stimulating factor 1 receptor (Csf1r, CD115) expression fails to discriminate dendritic cells from macrophages
    • Bradford BM, Sester DP, Hume DA, Mabbott NA. 2011. Defining the anatomical localization of subsets of the murine mononuclear phagocyte system using integrin alpha X (Itgax, CD11c) and colony-stimulating factor 1 receptor (Csf1r, CD115) expression fails to discriminate dendritic cells from macrophages. Immunobiology 216:1228-1237.
    • (2011) Immunobiology , vol.216 , pp. 1228-1237
    • Bradford, B.M.1    Sester, D.P.2    Hume, D.A.3    Mabbott, N.A.4
  • 36
    • 84860340484 scopus 로고    scopus 로고
    • Inflammatory spleen monocytes can upregulate CD11c expression without converting into dendritic cells
    • Drutman SB, Kendall JC, Trombetta ES. 2012. Inflammatory spleen monocytes can upregulate CD11c expression without converting into dendritic cells. J. Immunol. 188:3603-3610.
    • (2012) J. Immunol. , vol.188 , pp. 3603-3610
    • Drutman, S.B.1    Kendall, J.C.2    Trombetta, E.S.3
  • 37
    • 85058248273 scopus 로고    scopus 로고
    • DC ablation in mice: promises, pitfalls, and challenges
    • Bennett CL, Clausen BE. 2007. DC ablation in mice: promises, pitfalls, and challenges. Trends Immunol. 28:525-531.
    • (2007) Trends Immunol. , vol.28 , pp. 525-531
    • Bennett, C.L.1    Clausen, B.E.2
  • 38
    • 84867289691 scopus 로고    scopus 로고
    • Genetic ablation of arginase 1 in macrophages and neutrophils enhances clearance of an arthritogenic alphavirus
    • Stoermer KA, Burrack A, Oko L, Montgomery SA, Borst LB, Gill RG, Morrison TE. 2012. Genetic ablation of arginase 1 in macrophages and neutrophils enhances clearance of an arthritogenic alphavirus. J. Immunol. 189:4047-4059.
    • (2012) J. Immunol. , vol.189 , pp. 4047-4059
    • Stoermer, K.A.1    Burrack, A.2    Oko, L.3    Montgomery, S.A.4    Borst, L.B.5    Gill, R.G.6    Morrison, T.E.7
  • 40
    • 67650485985 scopus 로고    scopus 로고
    • Alternative activation of macrophages: an immunologic functional perspective
    • Martinez FO, Helming L, Gordon S. 2009. Alternative activation of macrophages: an immunologic functional perspective. Annu. Rev. Immunol. 27:451-483.
    • (2009) Annu. Rev. Immunol. , vol.27 , pp. 451-483
    • Martinez, F.O.1    Helming, L.2    Gordon, S.3
  • 41
    • 23444456772 scopus 로고    scopus 로고
    • Regulation of immune responses by L-arginine metabolism
    • Bronte V, Zanovello P. 2005. Regulation of immune responses by L-arginine metabolism. Nat. Rev. Immunol. 5:641-654.
    • (2005) Nat. Rev. Immunol. , vol.5 , pp. 641-654
    • Bronte, V.1    Zanovello, P.2
  • 42
    • 0032526629 scopus 로고    scopus 로고
    • Macrophagederived nitric oxide regulates T cell activation via reversible disruption of the Jak3/STAT5 signaling pathway
    • Bingisser RM, Tilbrook PA, Holt PG, Kees UR. 1998. Macrophagederived nitric oxide regulates T cell activation via reversible disruption of the Jak3/STAT5 signaling pathway. J. Immunol. 160:5729-5734.
    • (1998) J. Immunol. , vol.160 , pp. 5729-5734
    • Bingisser, R.M.1    Tilbrook, P.A.2    Holt, P.G.3    Kees, U.R.4
  • 43
    • 27744528888 scopus 로고    scopus 로고
    • Homing to suppress: address codes for Treg migration
    • Huehn J, Hamann A. 2005. Homing to suppress: address codes for Treg migration. Trends Immunol. 26:632-636.
    • (2005) Trends Immunol. , vol.26 , pp. 632-636
    • Huehn, J.1    Hamann, A.2
  • 44
    • 0037963473 scopus 로고    scopus 로고
    • Blood monocytes consist of two principal subsets with distinct migratory properties
    • Geissmann F, Jung S, Littman DR. 2003. Blood monocytes consist of two principal subsets with distinct migratory properties. Immunity 19:71-82.
    • (2003) Immunity , vol.19 , pp. 71-82
    • Geissmann, F.1    Jung, S.2    Littman, D.R.3
  • 45
    • 60649110015 scopus 로고    scopus 로고
    • Role of regulatory T cells in coronavirus-induced acute encephalitis
    • Anghelina D, Zhao J, Trandem K, Perlman S. 2009. Role of regulatory T cells in coronavirus-induced acute encephalitis. Virology 385:358-367.
    • (2009) Virology , vol.385 , pp. 358-367
    • Anghelina, D.1    Zhao, J.2    Trandem, K.3    Perlman, S.4
  • 47
    • 77952746516 scopus 로고    scopus 로고
    • Regulatory T cells inhibit T cell proliferation and decrease demyelination in mice chronically infected with a coronavirus
    • Trandem K, Anghelina D, Zhao J, Perlman S. 2010. Regulatory T cells inhibit T cell proliferation and decrease demyelination in mice chronically infected with a coronavirus. J. Immunol. 184:4391-4400.
    • (2010) J. Immunol. , vol.184 , pp. 4391-4400
    • Trandem, K.1    Anghelina, D.2    Zhao, J.3    Perlman, S.4
  • 48
    • 79961139920 scopus 로고    scopus 로고
    • IFN-gamma-and IL-10-expressing virus epitope-specific Foxp3+ T reg cells in the central nervous system during encephalomyelitis
    • Zhao J, Zhao J, Fett C, Trandem K, Fleming E, Perlman S. 2011. IFN-gamma-and IL-10-expressing virus epitope-specific Foxp3+ T reg cells in the central nervous system during encephalomyelitis. J. Exp. Med. 208:1571-1577.
    • (2011) J. Exp. Med. , vol.208 , pp. 1571-1577
    • Zhao, J.1    Zhao, J.2    Fett, C.3    Trandem, K.4    Fleming, E.5    Perlman, S.6
  • 50
    • 61349100687 scopus 로고    scopus 로고
    • Myeloid-derived suppressor cells as regulators of the immune system
    • Gabrilovich DI, Nagaraj S. 2009. Myeloid-derived suppressor cells as regulators of the immune system. Nat. Rev. Immunol. 9:162-174.
    • (2009) Nat. Rev. Immunol. , vol.9 , pp. 162-174
    • Gabrilovich, D.I.1    Nagaraj, S.2
  • 52
    • 17044366637 scopus 로고    scopus 로고
    • STAT1 signaling regulates tumorassociated macrophage-mediated T cell deletion
    • Kusmartsev S, Gabrilovich DI. 2005. STAT1 signaling regulates tumorassociated macrophage-mediated T cell deletion. J. Immunol. 174:4880-4891.
    • (2005) J. Immunol. , vol.174 , pp. 4880-4891
    • Kusmartsev, S.1    Gabrilovich, D.I.2
  • 53
    • 84864314901 scopus 로고    scopus 로고
    • Cytomegalovirus impairs antiviral CD8+ T cell immunity by recruiting inflammatory monocytes
    • Daley-Bauer LP, Wynn GM, Mocarski ES. 2012. Cytomegalovirus impairs antiviral CD8+ T cell immunity by recruiting inflammatory monocytes. Immunity 37:122-133.
    • (2012) Immunity , vol.37 , pp. 122-133
    • Daley-Bauer, L.P.1    Wynn, G.M.2    Mocarski, E.S.3
  • 54
    • 0035907263 scopus 로고    scopus 로고
    • A macrophage protein, Ym1, transiently expressed during inflammation is a novel mammalian lectin
    • Chang NC, Hung SI, Hwa KY, Kato I, Chen JE, Liu CH, Chang AC. 2001. A macrophage protein, Ym1, transiently expressed during inflammation is a novel mammalian lectin. J. Biol. Chem. 276:17497-17506.
    • (2001) J. Biol. Chem. , vol.276 , pp. 17497-17506
    • Chang, N.C.1    Hung, S.I.2    Hwa, K.Y.3    Kato, I.4    Chen, J.E.5    Liu, C.H.6    Chang, A.C.7
  • 55
    • 58249114891 scopus 로고    scopus 로고
    • p47phox deficiency induces macrophage dysfunction resulting in progressive crystalline macrophage pneumonia
    • Liu Q, Cheng LI, Yi L, Zhu N, Wood A, Changpriroa CM, Ward JM, Jackson SH. 2009. p47phox deficiency induces macrophage dysfunction resulting in progressive crystalline macrophage pneumonia. Am. J. Pathol. 174:153-163.
    • (2009) Am. J. Pathol. , vol.174 , pp. 153-163
    • Liu, Q.1    Cheng, L.I.2    Yi, L.3    Zhu, N.4    Wood, A.5    Changpriroa, C.M.6    Ward, J.M.7    Jackson, S.H.8


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.