Research Topics
| David N PosnettSummaryAffiliation: Cornell University Country: USA Publications
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Publications
Tumor antigen drives a persistent oligoclonal expansion of CD8+ T cells in aged miceFang Li
Immunology Program, Graduate School of Medical Sciences, Weil Medical College of Cornell University, New York, NY 10021, USA
Eur J Immunol 32:1650-8. 2002..This induced tumor antigen-specific response may represent a model for the spontaneous TCE observed with aging and demonstrates that the CD8 response to a defined peptide/MHC antigen is indeed more oligoclonal in old mice...
Antiviral T cell responses: phalanx or multipronged attack?David N Posnett
Department of Medicine, Division of Hematology Oncology, Weill Medical College, Cornell University, New York, NY 10021, USA
J Exp Med 201:1881-4. 2005..Later, in the battle of Marathon described by Herodotus, the Greeks learned the advantages of multipronged attacks, a strategy still used in modern warfare. Is the immune system similar in its approach to combatting pathogens or tumors?..
Genomic absence of the gene encoding T cell receptor Vbeta7.2 is linked to the presence of autoantibodies in Sjögren's syndromeSanil J Manavalan
Weill Medical College of Cornell University, New York, New York 10021, USA
Arthritis Rheum 50:187-98. 2004..g., due to genomic deletion) has functional significance. We examined this question in relation to a known 21.6-kb insertion/deletion-related polymorphism (IDRP) in the human BV locus...
Development of effective vaccines for old mice in a tumor modelDavid N Posnett
Dep of Medicine, Weill Medical College of Cornell University, New York, NY 10021, United States
Vaccine 27:1093-100. 2009..However, fusion constructs with Vp22 gave a strong CD4 response to B16 melanoma and the OmpA response is MHC-II dependent. Both adjuvant fusion constructs stimulated CD4 and CD8 responses otherwise diminished in old mice...
Apoptosis of T cells in peripheral blood and cerebrospinal fluid is associated with disease activity of multiple sclerosisYoshinobu Okuda
Department of Medicine, Division of Hematology Oncology, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, USA
J Neuroimmunol 171:163-70. 2006..These results indicate that the resistance of T cells to Fas-mediated apoptosis is involved in exacerbation of MS and/or that Fas-mediated apoptosis of T cells is associated with remission of MS...
Mechanisms of immunization against cancer using chimeric antigensManuel E Engelhorn
The Swim Across America Laboratory, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York 10021, USA
Mol Ther 16:773-81. 2008..Therefore large fusion vector panels such as those presented here can provide information to promote the successful advancement of gene-based vaccines...
Amplification of autoimmune disease by infectionDavid N Posnett
Immunology Program, Graduate School of Medical Sciences, Weill Medical College, Cornell University, Ithaca, NY, USA
Arthritis Res Ther 7:74-84. 2005..We suggest that patients with autoimmune disorders receiving immunosuppressing drugs should benefit from preventive antiviral therapy...
Herpesviruses and autoimmunityDavid N Posnett
Weill Medical College of Cornell University, Department of Medicine, Division of Hematology Oncology, 1300 York Avwnue, New York, NY 10021, USA
Curr Opin Investig Drugs 9:505-14. 2008....
The activation of memory CD4(+) T cells and CD8(+) T cells in patients with multiple sclerosisYoshinobu Okuda
Department of Medicine, Division of Hematology Oncology, Weill Medical College of Cornell University, 1300 York Avenue, New York, NY 10021, USA
J Neurol Sci 235:11-7. 2005..Transient as well as continuous activation of T cells by recall antigens may be involved in the disease course of MS...
Oligoclonal expansions of antigen-specific CD8+ T cells in aged miceDavid N Posnett
Weill Medical College, Cornell University, Immunology Program, Graduate School of Medical Sciences, 1300 York Avenue, New York, NY 10021, USA
Ann N Y Acad Sci 987:274-9. 2003..The TCE appear to be inefficient as they are often anergic. As a result an occasional peritoneal or splenic tumor may arise in old mice...
A mouse herpesvirus induces relapse of experimental autoimmune arthritis by infection of the inflammatory target tissueDmitry A Yarilin
Immunology Program, Graduate School of Medical Sciences, Division of Hematology-Oncology, Weill Medical College, Cornell University, New York, NY 10021, USA
J Immunol 173:5238-46. 2004..We conclude that herpesviruses may play an ancillary pathogenic role in autoimmune arthritis by infection of the inflammatory target tissue...
Staphylococcus aureus express unique superantigens depending on the tissue sourceMichael C Banks
Immunology Program, Graduate School of Medical Sciences, Weill Medical College, Cornell University, New York, New York 10021, USA
J Infect Dis 187:77-86. 2003..Together, the data suggest a role for SEG/SEI or closely linked genes in the adaptation of S. aureus to the genital mucosa environment...
