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Articles 61 - 63 of 63
Full-Text Articles in Medical Immunology
Signaling Through Galphai2 Protein Is Required For Recruitment Of Neutrophils For Antibody-Mediated Elimination Of Larval Strongyloides Stercoralis In Mice., Udaikumar M. Padigel, Louis Stein, Kevin Redding, James J. Lee, Thomas J. Nolan, Gerhard A. Schad, Lutz Birnbaumer, David Abraham
Signaling Through Galphai2 Protein Is Required For Recruitment Of Neutrophils For Antibody-Mediated Elimination Of Larval Strongyloides Stercoralis In Mice., Udaikumar M. Padigel, Louis Stein, Kevin Redding, James J. Lee, Thomas J. Nolan, Gerhard A. Schad, Lutz Birnbaumer, David Abraham
Department of Microbiology and Immunology Faculty Papers
The heterotrimeric guanine nucleotide-binding protein Galphai2 is involved in regulation of immune responses against microbial and nonmicrobial stimuli. Galphai2-/- mice have a selectively impaired IgM response consistent with a disorder in B cell development yet have augmented T cell effector function associated with increased production of IFN-gamma and IL-4. The goal of the present study was to determine if a deficiency in the Galphai2 protein in mice would affect the protective immune response against Strongyloides stercoralis, which is IL-4-, IL-5-, and IgM-dependent. Galphai2-/- and wild-type mice were immunized and challenged with S. stercoralis larvae and analyzed for protective immune responses …
Characterization Of The Cd154-Positive And Cd40-Positive Cellular Subsets Required For Pathogenesis In Retrovirus-Induced Murine Immunodeficiency, Kathy A. Green, Randolph J. Noelle, Brigit G. Durell, William R. Green
Characterization Of The Cd154-Positive And Cd40-Positive Cellular Subsets Required For Pathogenesis In Retrovirus-Induced Murine Immunodeficiency, Kathy A. Green, Randolph J. Noelle, Brigit G. Durell, William R. Green
Dartmouth Scholarship
Genetically susceptible C57BL/6 (B6) mice that are infected with the LP-BM5 isolate of murine retroviruses develop profound splenomegaly, lymphadenopathy, hypergammaglobulinemia, terminal B-cell lymphomas, and an immunodeficiency state bearing many similarities to the pathologies seen in AIDS. Because of these similarities, this syndrome has been called murine AIDS (MAIDS). We have previously shown that CD154 (CD40 ligand)-CD40 molecular interactions are required both for the initiation and progression of MAIDS. Thus, in vivo anti-CD154 monoclonal antibody (MAb) treatment inhibited MAIDS symptoms in LP-BM5-infected wild-type mice when either a short course of anti-CD154 MAb treatment was started on the day of infection or …
Rat Dendritic Cells Function As Accessory Cells And Control The Production Of A Soluble Factor Required For Mitogenic Responses Of T Lymphocytes., Wolfgang E. Klinkert, Jon H. Labadie, James P. O'Brien, Carl F. Beyer, William E. Bowers
Rat Dendritic Cells Function As Accessory Cells And Control The Production Of A Soluble Factor Required For Mitogenic Responses Of T Lymphocytes., Wolfgang E. Klinkert, Jon H. Labadie, James P. O'Brien, Carl F. Beyer, William E. Bowers
Dartmouth Scholarship
Transformation of T lymphocytes, induced by treatment with periodate or with neuraminidase plus galactose oxidase, requires the participation of accessory cells. Procedures were developed for the fractionation of rat lymph node cells, by which most of the lymphocytes can be recovered as a major population of cells that do not respond to mitogenic stimulation unless accessory cells from a separated minor population are added. Further purification led to a 1000-fold overall increase in accessory activity per cell, with a 50-70% yield. The purest preparations were virtually free of macrophages and contained more than 90% typical dendritic cells. Maximum responses occurred …