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Full-Text Articles in Medical Sciences

Murine Cmv Infection Induces The Continuous Production Of Mucosal Resident T Cells., Corinne J Smith, Sofia Caldeira-Dantas, Holly Turula, Christopher M. Snyder Nov 2015

Murine Cmv Infection Induces The Continuous Production Of Mucosal Resident T Cells., Corinne J Smith, Sofia Caldeira-Dantas, Holly Turula, Christopher M. Snyder

Department of Microbiology and Immunology Faculty Papers

Cytomegalovirus (CMV) is a herpesvirus that persists for life and maintains extremely large numbers of T cells with select specificities in circulation. However, it is unknown how viral persistence impacts T cell populations in mucosal sites. We found that many murine (M)CMV-specific CD8s in mucosal tissues became resident memory T cells (TRM). These cells adopted an intraepithelial localization in the salivary gland that correlated with, but did not depend on, expression of the integrin CD103. MCMV-specific TRM cells formed early after infection, and spleen-localized cells had reduced capacities to become TRM at late times. Surprisingly, however, small numbers of new …


Reverse Genetics Of Mononegavirales: How They Work, New Vaccines, And New Cancer Therapeutics., Christian K Pfaller, Roberto Cattaneo, Matthias J. Schnell May 2015

Reverse Genetics Of Mononegavirales: How They Work, New Vaccines, And New Cancer Therapeutics., Christian K Pfaller, Roberto Cattaneo, Matthias J. Schnell

Department of Microbiology and Immunology Faculty Papers

The order Mononegavirales includes five families: Bornaviridae, Filoviridae, Nyamaviridae, Paramyxoviridae, and Rhabdoviridae. The genome of these viruses is one molecule of negative-sense single strand RNA coding for five to ten genes in a conserved order. The RNA is not infectious until packaged by the nucleocapsid protein and transcribed by the polymerase and co-factors. Reverse genetics approaches have answered fundamental questions about the biology of Mononegavirales. The lack of icosahedral symmetry and modular organization in the genome of these viruses has facilitated engineering of viruses expressing fluorescent proteins, and these fluorescent proteins have provided important insights about the molecular and cellular …


The Onchocerciasis Vaccine For Africa-Tova-Initiative., Peter J Hotez, Maria Elena Bottazzi, Bin Zhan, Benjamin L Makepeace, Thomas R Klei, David Abraham, David W Taylor, Sara Lustigman Jan 2015

The Onchocerciasis Vaccine For Africa-Tova-Initiative., Peter J Hotez, Maria Elena Bottazzi, Bin Zhan, Benjamin L Makepeace, Thomas R Klei, David Abraham, David W Taylor, Sara Lustigman

Department of Microbiology and Immunology Faculty Papers

No abstract provided.


Memory T Cells Specific For Murine Cytomegalovirus Re-Emerge After Multiple Challenges And Recapitulate Immunity In Various Adoptive Transfer Scenarios., Michael Quinn, Holly Turula, Mayank Tandon, Berthony Deslouches, Toktam Moghbeli, Christopher M. Snyder Jan 2015

Memory T Cells Specific For Murine Cytomegalovirus Re-Emerge After Multiple Challenges And Recapitulate Immunity In Various Adoptive Transfer Scenarios., Michael Quinn, Holly Turula, Mayank Tandon, Berthony Deslouches, Toktam Moghbeli, Christopher M. Snyder

Department of Microbiology and Immunology Faculty Papers

Reconstitution of CMV-specific immunity after transplant remains a primary clinical objective to prevent CMV disease, and adoptive immunotherapy of CMV-specific T cells can be an effective therapeutic approach. Because of viral persistence, most CMV-specific CD8(+) T cells become terminally differentiated effector phenotype CD8(+) T cells (TEFF). A minor subset retains a memory-like phenotype (memory phenotype CD8(+) T cells [TM]), but it is unknown whether these cells retain memory function or persist over time. Interestingly, recent studies suggest that CMV-specific CD8(+) T cells with different phenotypes have different abilities to reconstitute sustained immunity after transfer. The immunology of human CMV infections …