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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chapman, Lesley M. Baldwin, William M. Field, David J. Srivastava, Kalyan Yui, Katsuyuki Morrell, Craig N. Aggrey, Angela A. Topham, David J. Ture, Sara |
| Description | Country affiliation: United States Author Affiliation: Chapman LM ( Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642, USA.) |
| Abstract | Platelets are most recognized for their vital role as the cellular mediator of thrombosis, but platelets also have important immune functions. Platelets initiate and sustain vascular inflammation in many disease conditions, including arthritis, atherosclerosis, transplant rejection, and severe malaria. We now demonstrate that platelets express T cell costimulatory molecules, process and present Ag in MHC class I, and directly activate naive T cells in a platelet MHC class I-dependent manner. Using an experimental cerebral malaria mouse model, we also demonstrate that platelets present pathogen-derived Ag to promote T cell responses in vivo, and that platelets can be used in a cell-based vaccine model to induce protective immune responses. Our study demonstrates a novel Ag presentation role for platelets. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1200580 |
| Journal | The Journal of Immunology |
| Issue Number | 2 |
| Volume Number | 189 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2012-07-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Antigen Presentation Immunology Blood Platelets Histocompatibility Antigens Class I Animals Metabolism Parasitology Cd8-positive T-lymphocytes Pathology Cell Movement Blood Genetics Lymphocyte Activation Malaria Mice Mice, Inbred C57bl Plasmodium Berghei Research Support, N.i.h., Extramural Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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