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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gondek, David C. Devries, Victor Scott, Zachary A. Noelle, Randolph J. Nowak, Elizabeth C. Lu, Li-Fan Bennett, Kathryn A. |
| Description | Country affiliation: United States Author Affiliation: Gondek DC ( Department of Microbiology and Immunology, Dartmouth Medical School and Norris Cotton Cancer Center, Lebanon, NH 03756, USA.) |
| Abstract | Granzyme B (GZB) has been implicated as an effector mechanism in regulatory T cells (T(reg)) suppression. In a model of T(reg)-dependent graft tolerance, it is shown that GZB- deficient mice are unable to establish long-term tolerance. Moreover, mice overexpressing the inhibitor of GZB, serine protease inhibitor 6, are also resistant to tolerization to alloantigen. Graft survival was shorter in bone marrow-mixed chimeras reconstituted with GZB-deficient T(reg) as compared with wild-type T(reg). Whereas there was no difference in graft survival in mixed chimeras reconstituted with wild-type, perforin-deficient, or Fas ligand-deficient T(reg). Finally, data also show that if alloreactive effectors cannot express FoxP3 and be induced to convert in the presence of competent T(reg), then graft tolerance is lost. Our data are the first in vivo data to implicate GZB expression by T(reg) in sustaining long-lived graft survival. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| Journal | The Journal of Immunology |
| Issue Number | 7 |
| Volume Number | 181 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2008-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Graft Survival Immunology Granzymes Biosynthesis Physiology Skin Transplantation T-lymphocytes, Regulatory Enzymology Amino Acid Sequence Animals Bone Marrow Transplantation Cells, Cultured Coculture Techniques Forkhead Transcription Factors Genetics Deficiency Immunity, Innate Membrane Proteins Mice Mice, Inbred Balb C Mice, Inbred C57bl Mice, Knockout Mice, Mutant Strains Mice, Transgenic Molecular Sequence Data Serine Endopeptidases Serpins Pathology Transplantation Tolerance Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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