|
|
||||||||
CUTTING EDGE |



* Immunotherapy Center,
Department of Medicine, and
Department of Pediatrics, Medical College of Georgia, Augusta GA 30912
CpG oligodeoxynucleotides (CpG-ODNs) stimulate innate and adaptive immunity by binding to TLR9 molecules. Paradoxically, expression of the immunoregulatory enzyme indoleamine 2,3-dioxygenase (IDO) is induced following i.v. CpG-ODN administration to mice. CpG-ODNs induced selective IDO expression by a minor population of splenic CD19+ dendritic cells (DCs) that did not express the plasmacytoid DC marker 120G8. Following CpG-ODN treatment, CD19+ DCs acquired potent IDO-dependent T cell suppressive functions. Signaling through IFN type I receptors was essential for IDO up-regulation, and CpG-ODNs induced selective activation of STAT-1 in CD19+ DCs. Thus, CpG-ODNs delivered systemically at relatively high doses elicited potent T cell regulatory responses by acting on a discrete, minor population of splenic DCs. The ability of CpG-ODNs to induce both stimulatory and regulatory responses offers novel opportunities for using them as immunomodulatory reagents but may complicate therapeutic use of CpG-ODNs to stimulate antitumor immunity in cancer patients.
This article has been cited by other articles:
![]() |
F. Fallarino, C. Volpi, T. Zelante, C. Vacca, M. Calvitti, M. C. Fioretti, P. Puccetti, L. Romani, and U. Grohmann IDO Mediates TLR9-Driven Protection from Experimental Autoimmune Diabetes J. Immunol., November 15, 2009; 183(10): 6303 - 6312. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. Baban, P. R. Chandler, M. D. Sharma, J. Pihkala, P. A. Koni, D. H. Munn, and A. L. Mellor IDO Activates Regulatory T Cells and Blocks Their Conversion into Th17-Like T Cells J. Immunol., August 15, 2009; 183(4): 2475 - 2483. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. K. Sharma, K. G. Elpek, E. S. Yolcu, R.-H. Schabowsky, H. Zhao, L. Bandura-Morgan, and H. Shirwan Costimulation as a Platform for the Development of Vaccines: A Peptide-Based Vaccine Containing a Novel Form of 4-1BB Ligand Eradicates Established Tumors Cancer Res., May 15, 2009; 69(10): 4319 - 4326. [Abstract] [Full Text] [PDF] |
||||
![]() |
J. Zeng, S. Cai, Y. Yi, Y. He, Z. Wang, G. Jiang, X. Li, and J. Du Prevention of Spontaneous Tumor Development in a ret Transgenic Mouse Model by Ret Peptide Vaccination with Indoleamine 2,3-Dioxygenase Inhibitor 1-Methyl Tryptophan Cancer Res., May 1, 2009; 69(9): 3963 - 3970. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. J. Muller, M. D. Sharma, P. R. Chandler, J. B. DuHadaway, M. E. Everhart, B. A. Johnson III, D. J. Kahler, J. Pihkala, A. P. Soler, D. H. Munn, et al. Chronic inflammation that facilitates tumor progression creates local immune suppression by inducing indoleamine 2,3 dioxygenase PNAS, November 4, 2008; 105(44): 17073 - 17078. [Abstract] [Full Text] [PDF] |
||||
![]() |
W. Chen, X. Liang, A. J. Peterson, D. H. Munn, and B. R. Blazar The Indoleamine 2,3-Dioxygenase Pathway Is Essential for Human Plasmacytoid Dendritic Cell-Induced Adaptive T Regulatory Cell Generation J. Immunol., October 15, 2008; 181(8): 5396 - 5404. [Abstract] [Full Text] [PDF] |
||||
![]() |
P. Bochtler, A. Kroger, R. Schirmbeck, and J. Reimann Type I IFN-Induced, NKT Cell-Mediated Negative Control of CD8 T Cell Priming by Dendritic Cells J. Immunol., August 1, 2008; 181(3): 1633 - 1643. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. G. Molenkamp, B. J.R. Sluijter, P. A.M. van Leeuwen, S. J.A.M. Santegoets, S. Meijer, P. G.J.T.B. Wijnands, J. B.A.G. Haanen, A. J.M. van den Eertwegh, R. J. Scheper, and T. D. de Gruijl Local Administration of PF-3512676 CpG-B Instigates Tumor-Specific CD8+ T-Cell Reactivity in Melanoma Patients Clin. Cancer Res., July 15, 2008; 14(14): 4532 - 4542. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Nierkens, M. H. den Brok, R. P.M. Sutmuller, O. M. Grauer, E. Bennink, M. E. Morgan, C. G. Figdor, T. J.M. Ruers, and G. J. Adema In vivo Colocalization of Antigen and CpG within Dendritic Cells Is Associated with the Efficacy of Cancer Immunotherapy Cancer Res., July 1, 2008; 68(13): 5390 - 5396. [Abstract] [Full Text] [PDF] |
||||
![]() |
V. Lampropoulou, K. Hoehlig, T. Roch, P. Neves, E. C. Gomez, C. H. Sweenie, Y. Hao, A. A. Freitas, U. Steinhoff, S. M. Anderton, et al. TLR-Activated B Cells Suppress T Cell-Mediated Autoimmunity J. Immunol., April 1, 2008; 180(7): 4763 - 4773. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. K. Jasperson, C. Bucher, A. Panoskaltsis-Mortari, P. A. Taylor, A. L. Mellor, D. H. Munn, and B. R. Blazar Indoleamine 2,3-dioxygenase is a critical regulator of acute graft-versus-host disease lethality Blood, March 15, 2008; 111(6): 3257 - 3265. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. John and P. J. Nelson Dendritic Cells in the Kidney J. Am. Soc. Nephrol., October 1, 2007; 18(10): 2628 - 2635. [Abstract] [Full Text] [PDF] |
||||
![]() |
B. J. E. Raveney and D. J. Morgan Dynamic Control of Self-Specific CD8+ T Cell Responses via a Combination of Signals Mediated by Dendritic Cells J. Immunol., September 1, 2007; 179(5): 2870 - 2879. [Abstract] [Full Text] [PDF] |
||||
![]() |
H.-J. Wu, H. Sawaya, B. Binstadt, M. Brickelmaier, A. Blasius, L. Gorelik, U. Mahmood, R. Weissleder, J. Carulli, C. Benoist, et al. Inflammatory arthritis can be reined in by CpG-induced DC NK cell cross talk J. Exp. Med., August 6, 2007; 204(8): 1911 - 1922. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. Watanabe, M. Fujimoto, N. Ishiura, Y. Kuwano, H. Nakashima, N. Yazawa, H. Okochi, S. Sato, T. F. Tedder, and K. Tamaki CD19 Expression in B Cells Is Important for Suppression of Contact Hypersensitivity Am. J. Pathol., August 1, 2007; 171(2): 560 - 570. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. C. Prendergast and E. M. Jaffee Cancer Immunologists and Cancer Biologists: Why We Didn't Talk Then but Need to Now Cancer Res., April 15, 2007; 67(8): 3500 - 3504. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Boasso, J.-P. Herbeuval, A. W. Hardy, S. A. Anderson, M. J. Dolan, D. Fuchs, and G. M. Shearer HIV inhibits CD4+ T-cell proliferation by inducing indoleamine 2,3-dioxygenase in plasmacytoid dendritic cells Blood, April 15, 2007; 109(8): 3351 - 3359. [Abstract] [Full Text] [PDF] |
||||
![]() |
Z. Liu, H. Dai, N. Wan, T. Wang, S. Bertera, M. Trucco, and Z. Dai Suppression of Memory CD8 T Cell Generation and Function by Tryptophan Catabolism J. Immunol., April 1, 2007; 178(7): 4260 - 4266. [Abstract] [Full Text] [PDF] |
||||
![]() |
D.-Y. Hou, A. J. Muller, M. D. Sharma, J. DuHadaway, T. Banerjee, M. Johnson, A. L. Mellor, G. C. Prendergast, and D. H. Munn Inhibition of Indoleamine 2,3-Dioxygenase in Dendritic Cells by Stereoisomers of 1-Methyl-Tryptophan Correlates with Antitumor Responses Cancer Res., January 15, 2007; 67(2): 792 - 801. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. A. Murray, M. R. Siddiqui, M. Mendillo, J. Krahenbuhl, and G. Kaplan Mycobacterium leprae Inhibits Dendritic Cell Activation and Maturation J. Immunol., January 1, 2007; 178(1): 338 - 344. [Abstract] [Full Text] [PDF] |
||||
![]() |
R. L. Seymour, V. Ganapathy, A. L. Mellor, and D. H. Munn A high-affinity, tryptophan-selective amino acid transport system in human macrophages J. Leukoc. Biol., December 1, 2006; 80(6): 1320 - 1327. [Abstract] [Full Text] [PDF] |
||||
![]() |
L. Romani, F. Bistoni, K. Perruccio, C. Montagnoli, R. Gaziano, S. Bozza, P. Bonifazi, G. Bistoni, G. Rasi, A. Velardi, et al. Thymosin {alpha}1 activates dendritic cell tryptophan catabolism and establishes a regulatory environment for balance of inflammation and tolerance Blood, October 1, 2006; 108(7): 2265 - 2274. [Abstract] [Full Text] [PDF] |
||||
![]() |
H. Sjolin, S. H. Robbins, G. Bessou, A. Hidmark, E. Tomasello, M. Johansson, H. Hall, F. Charifi, G. B. K. Hedestam, C. A. Biron, et al. DAP12 Signaling Regulates Plasmacytoid Dendritic Cell Homeostasis and Down-Modulates Their Function during Viral Infection. J. Immunol., September 1, 2006; 177(5): 2908 - 2916. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |