|
|
||||||||



Departments of
* Pathobiological Sciences and
Laboratory Medicine and Pathology, University of Wisconsin, Madison, WI 53706;
Department of Internal Medicine, Washington University, St. Louis, MO 63110;
Institute of Human Virology, University of Maryland Biotechnology Institute, Baltimore, MD 21201; and
¶ Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104
In addition to its established role in innate immune mechanisms, complement component C3 is also of critical importance in B cell activation and T cell-dependent Ab responses. In this study, we have examined the requirement for C3 in the generation of primary CD8 T cell responses to an acute systemic viral infection. We compared Ag-specific CD8 T cell responses to lymphocytic choriomeningitis virus (LCMV) between wild-type (+/+) and C3-deficient (C3-/-) mice on both 129/B6 and B6 backgrounds. These studies revealed that C3 activity is required for optimal expansion of LCMV-specific effector CD8 T cells in an epitope-dependent fashion, which is influenced by the genetic background of the mice. Studies in complement receptor 1/2 (CR1/CR2)-deficient mice showed that regulation of LCMV-specific CD8 T cell responses by C3 is not dependent upon CR1/CR2. These findings may have implications in vaccine development, therapy of autoimmune diseases, and prevention of graft rejection.
This article has been cited by other articles:
![]() |
V. Pavlov, H. Raedler, S. Yuan, S. Leisman, W.-h. Kwan, P. N. Lalli, M. E. Medof, and P. S. Heeger Donor Deficiency of Decay-Accelerating Factor Accelerates Murine T Cell-Mediated Cardiac Allograft Rejection J. Immunol., October 1, 2008; 181(7): 4580 - 4589. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Ghannam, M. Pernollet, J.-L. Fauquert, N. Monnier, D. Ponard, M.-B. Villiers, J. Peguet-Navarro, A. Tridon, J. Lunardi, D. Gerlier, et al. Human C3 Deficiency Associated with Impairments in Dendritic Cell Differentiation, Memory B Cells, and Regulatory T Cells J. Immunol., October 1, 2008; 181(7): 5158 - 5166. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. N. Lalli, M. G. Strainic, M. Yang, F. Lin, M. E. Medof, and P. S. Heeger Locally produced C5a binds to T cell-expressed C5aR to enhance effector T-cell expansion by limiting antigen-induced apoptosis Blood, September 1, 2008; 112(5): 1759 - 1766. [Abstract] [Full Text] [PDF] |
||||
![]() |
N. M. Girgis, B. C. DeHaven, X. Fan, K. M. Viner, M. Shamim, and S. N. Isaacs Cell Surface Expression of the Vaccinia Virus Complement Control Protein Is Mediated by Interaction with the Viral A56 Protein and Protects Infected Cells from Complement Attack J. Virol., May 1, 2008; 82(9): 4205 - 4214. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. N. Lalli, M. G. Strainic, F. Lin, M. E. Medof, and P. S. Heeger Decay Accelerating Factor Can Control T Cell Differentiation into IFN-{gamma}-Producing Effector Cells via Regulating Local C5a-Induced IL-12 Production J. Immunol., November 1, 2007; 179(9): 5793 - 5802. [Abstract] [Full Text] [PDF] |
||||
![]() |
C. Fang, T. Miwa, H. Shen, and W.-C. Song Complement-Dependent Enhancement of CD8+ T Cell Immunity to Lymphocytic Choriomeningitis Virus Infection in Decay-Accelerating Factor-Deficient Mice J. Immunol., September 1, 2007; 179(5): 3178 - 3186. [Abstract] [Full Text] [PDF] |
||||
![]() |
X. Zhang, Y. Kimura, C. Fang, L. Zhou, G. Sfyroera, J. D. Lambris, R. A. Wetsel, T. Miwa, and W.-C. Song Regulation of Toll-like receptor-mediated inflammatory response by complement in vivo Blood, July 1, 2007; 110(1): 228 - 236. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. H. Hogan, D. O. Co, J. Karman, E. Heninger, M. Suresh, and M. Sandor Virally Activated CD8 T Cells Home to Mycobacterium bovis BCG-Induced Granulomas but Enhance Antimycobacterial Protection Only in Immunodeficient Mice Infect. Immun., March 1, 2007; 75(3): 1154 - 1166. [Abstract] [Full Text] [PDF] |
||||
![]() |
E. Mehlhop and M. S. Diamond Protective immune responses against West Nile virus are primed by distinct complement activation pathways J. Exp. Med., May 15, 2006; 203(5): 1371 - 1381. [Abstract] [Full Text] [PDF] |
||||
![]() |
Q. Peng, K. Li, H. Patel, S. H. Sacks, and W. Zhou Dendritic Cell Synthesis of C3 Is Required for Full T Cell Activation and Development of a Th1 Phenotype J. Immunol., March 15, 2006; 176(6): 3330 - 3341. [Abstract] [Full Text] [PDF] |
||||
![]() |
D. Fairweather, S. Frisancho-Kiss, D. B. Njoku, J. F. Nyland, Z. Kaya, S. A. Yusung, S. E. Davis, J. A. Frisancho, M. A. Barrett, and N. R. Rose Complement Receptor 1 and 2 Deficiency Increases Coxsackievirus B3-Induced Myocarditis, Dilated Cardiomyopathy, and Heart Failure by Increasing Macrophages, IL-1beta, and Immune Complex Deposition in the Heart J. Immunol., March 15, 2006; 176(6): 3516 - 3524. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Zhou, H. Patel, K. Li, Q. Peng, M.-B. Villiers, and S. H. Sacks Macrophages from C3-deficient mice have impaired potency to stimulate alloreactive T cells Blood, March 15, 2006; 107(6): 2461 - 2469. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. S. Heeger, P. N. Lalli, F. Lin, A. Valujskikh, J. Liu, N. Muqim, Y. Xu, and M. E. Medof Decay-accelerating factor modulates induction of T cell immunity J. Exp. Med., May 16, 2005; 201(10): 1523 - 1530. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Liu, T. Miwa, B. Hilliard, Y. Chen, J. D. Lambris, A. D. Wells, and W.-C. Song The complement inhibitory protein DAF (CD55) suppresses T cell immunity in vivo J. Exp. Med., February 22, 2005; 201(4): 567 - 577. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. H. J. Kim, I. D. Dimitriou, M. C. H. Holland, D. Mastellos, Y. M. Mueller, J. D. Altman, J. D. Lambris, and P. D. Katsikis Complement C5a Receptor Is Essential for the Optimal Generation of Antiviral CD8+ T Cell Responses J. Immunol., August 15, 2004; 173(4): 2524 - 2529. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |