Abstract
Plasmacytoid dendritic cells (PDCs) are a unique leukocyte population capable of secreting high levels of type I interferon (IFN) in response to viruses and bacterial stimuli. In vitro experiments have shown that upon maturation, human and murine PDCs develop into potent immunostimulatory cells; however, their ability to prime an immune response in vivo remains to be addressed. We report that CpG-matured murine PDCs are capable of eliciting in naive mice antigen-specific CTLs against endogenous antigens as well as exogenous peptides, but not against an exogenous antigen. Type I IFN is not required for priming, as injection of CpG-matured PDCs into type I IFN receptor–deficient mice elicits functional CTL responses. Mature PDCs prime CTLs that secrete IFN-γ and protect mice from a tumor challenge. In contrast, immature PDCs are unable to prime antigen-specific CTLs. However, mice injected with immature PDCs are fully responsive to secondary antigenic challenges, suggesting that PDCs have not induced long-lasting tolerance via anergic or regulatory T cells. Our results underline the heterogeneity and plasticity of different antigen-presenting cells, and reveal an important role of mature PDCs in priming CD8 responses to endogenous antigens, in addition to their previously reported ability to modulate antiviral responses via type I IFN.
Bibliography
Salio, M., Palmowski, M. J., Atzberger, A., Hermans, I. F., & Cerundolo, V. (2004). CpG-matured Murine Plasmacytoid Dendritic Cells Are Capable of In Vivo Priming of Functional CD8 T Cell Responses to Endogenous but Not Exogenous Antigens. The Journal of Experimental Medicine, 199(4), 567â579.
References
64
Referenced
158
10.1038/32588
/ Nature. (1998)10.1038/nri746
/ Nat. Rev. Immunol. (2002)10.1038/11360
/ Nat. Med. (1999)10.1126/science.284.5421.1835
/ Science. (1999)10.1002/eji.200323676
/ Eur. J. Immunol. (2003)10.1182/blood-2002-10-3063
/ Blood. (2003)10.1084/jem.20011603
/ J. Exp. Med. (2002)10.1038/ni736
/ Nat. Immunol. (2001)10.1182/blood.V98.13.3520
/ Blood. (2001)10.1084/jem.194.8.1171
/ J. Exp. Med. (2001)10.1084/jem.20021091
/ J. Exp. Med. (2003)10.4049/jimmunol.169.12.6711
/ J. Immunol. (2002)10.1182/blood.V100.2.383
/ Blood. (2002)10.1182/blood-2002-03-0974
/ Blood. (2003)10.1084/jem.20021908
/ J. Exp. Med. (2003)10.1046/j.1365-2567.2003.01606.x
/ Immunology. (2003){'key': '2023072512282183200_BIB17'}
10.1084/jem.20020045
/ J. Exp. Med. (2002)10.1126/science.8009221
/ Science. (1994)10.1126/science.274.5284.94
/ Science. (1996)10.1006/viro.1997.8627
/ Virology. (1997)10.4049/jimmunol.154.9.4414
/ J. Immunol. (1995)10.1002/(SICI)1521-4141(199907)29:07<2213::AID-IMMU2213>3.0.CO;2-8
/ Eur. J. Immunol. (1999)10.4049/jimmunol.168.9.4391
/ J. Immunol. (2002){'key': '2023072512282183200_BIB25'}
10.4049/jimmunol.161.5.2187
/ J. Immunol. (1998)10.1084/jem.189.5.821
/ J. Exp. Med. (1999)10.4049/jimmunol.167.7.3756
/ J. Immunol. (2001)10.1038/ng1296-474
/ Nat. Genet. (1996)10.1084/jem.143.5.1283
/ J. Exp. Med. (1976)10.1038/18038
/ Nature. (1999)10.4049/jimmunol.169.10.5522
/ J. Immunol. (2002)10.1002/1521-4141(200206)32:6<1688::AID-IMMU1688>3.0.CO;2-9
/ Eur. J. Immunol. (2002)10.1084/jem.189.3.521
/ J. Exp. Med. (1999)10.1111/j.1600-065X.1999.tb01327.x
/ Immunol. Rev. (1999)10.1084/jem.20021542
/ J. Exp. Med. (2003)10.1084/jem.20021522
/ J. Exp. Med. (2003)10.1038/333742a0
/ Nature. (1988)10.1006/jsre.1993.1069
/ J. Surg. Res. (1993)10.1126/science.1900951
/ Science. (1991)10.1093/intimm/9.10.1423
/ Int. Immunol. (1997)10.1126/science.283.5408.1745
/ Science. (1999)10.1084/jem.193.2.233
/ J. Exp. Med. (2001)10.1084/jem.192.9.1213
/ J. Exp. Med. (2000)10.1084/jem.20021598
/ J. Exp. Med. (2002)10.1182/blood-2002-10-3229
/ Blood. (2003)10.1084/jem.20011672
/ J. Exp. Med. (2002){'key': '2023072512282183200_BIB48', 'first-page': '69', 'volume': '4', 'year': '2003', 'journal-title': 'Nat. Immunol.'}
/ Nat. Immunol. (2003)10.1038/ni873
/ Nat. Immunol. (2003)10.1182/blood-2002-04-1088
/ Blood. (2003)10.1084/jem.20021263
/ J. Exp. Med. (2002)10.4049/jimmunol.170.3.1131
/ J. Immunol. (2003)10.4049/jimmunol.170.6.3059
/ J. Immunol. (2003)10.1073/pnas.1934678100
/ Proc. Natl. Acad. Sci. USA. (2003)10.1093/intimm/dxf089
/ Int. Immunol. (2002)10.1084/jem.20030645
/ J. Exp. Med. (2003)10.1084/jem.185.6.1101
/ J. Exp. Med. (1997)10.1182/blood.V93.7.2302
/ Blood. (1999)10.1084/jem.193.8.881
/ J. Exp. Med. (2001)10.1084/jem.192.12.1685
/ J. Exp. Med. (2000)10.1084/jem.20020161
/ J. Exp. Med. (2002)10.4049/jimmunol.166.9.5327
/ J. Immunol. (2001)10.1084/jem.189.3.587
/ J. Exp. Med. (1999)10.1038/ni978
/ Nat. Immunol. (2003)
Dates
Type | When |
---|---|
Created | 21 years, 6 months ago (Feb. 17, 2004, 6:23 p.m.) |
Deposited | 2 years, 1 month ago (July 25, 2023, 8:39 a.m.) |
Indexed | 1 month ago (July 24, 2025, 7:57 a.m.) |
Issued | 21 years, 6 months ago (Feb. 16, 2004) |
Published | 21 years, 6 months ago (Feb. 16, 2004) |
Published Online | 21 years, 6 months ago (Feb. 17, 2004) |
Published Print | 21 years, 6 months ago (Feb. 16, 2004) |
@article{Salio_2004, title={CpG-matured Murine Plasmacytoid Dendritic Cells Are Capable of In Vivo Priming of Functional CD8 T Cell Responses to Endogenous but Not Exogenous Antigens}, volume={199}, ISSN={0022-1007}, url={http://dx.doi.org/10.1084/jem.20031059}, DOI={10.1084/jem.20031059}, number={4}, journal={The Journal of Experimental Medicine}, publisher={Rockefeller University Press}, author={Salio, Mariolina and Palmowski, Michael J. and Atzberger, Ann and Hermans, Ian F. and Cerundolo, Vincenzo}, year={2004}, month=feb, pages={567–579} }