| Characterization of accessory cell function during acute infection of BALB/cByJ mice with mouse hepatitis virus (MHV), strain JHM. | |
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MedLine Citation:
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PMID: 1658437 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Earlier studies revealed defective concanavalin A-stimulated proliferation and cytokine production by spleen cells derived from BALB/cByJ mice acutely infected with mouse hepatitis virus (MHV), strain JHM. Based on those observations, assays of in vitro antigen-presenting cell (APC) function were undertaken. APC function of unfractionated spleen cells from individual MHV-infected mice was highly variable. Experiments using pooled spleen cells derived from MHV-infected mice revealed that adherent spleen cell APC function was impaired to a much greater degree than B cell APC function. Adherent cells derived from peritoneal exudates of infected mice exhibited an APC defect that was similar in magnitude to that observed for splenic adherent cells. Splenic B cells derived from acutely infected BALB/cByJ mice harbored infectious MHV. In contrast, lysates of adherent spleen cells from acutely infected mice did not kill intracerebrally inoculated neonatal mice, but did induce seroconversion among all survivors. Despite impairment of APC function of cells derived from MHV-infected donors, neither indomethacin nor accessory cells from uninfected control mice restored concanavalin A-induced proliferative responses of spleen cells collected from acutely infected mice. These results and those of earlier studies suggest that, although APC function is impaired, in vitro T cell dysfunction exhibited by spleen cells from MHV-JHM-infected donors is probably related to an inherent proliferative defect subsequent to T cell activation. Defective concanavalin A-stimulated proliferation does not appear to be secondary to accessory cell function suppression or to inhibitory factors secreted by accessory cells. |
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Authors:
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M S de Souza; A L Smith |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Laboratory animal science Volume: 41 ISSN: 0023-6764 ISO Abbreviation: Lab. Anim. Sci. Publication Date: 1991 Apr |
Date Detail:
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Created Date: 1991-11-25 Completed Date: 1991-11-25 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 1266503 Medline TA: Lab Anim Sci Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 112-8 Citation Subset: IM |
Affiliation:
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Section of Comparative Medicine, Yale University School of Medicine, New Haven, CT 06510. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acute Disease Animals Antigen-Presenting Cells / immunology* Ascitic Fluid / immunology B-Lymphocytes / immunology Cell Separation Cells, Cultured Concanavalin A Female Hepatitis, Viral, Animal / immunology* Indomethacin / pharmacology Lymphocyte Activation* / drug effects Macrophages / immunology Mice Mice, Inbred BALB C Mice, Inbred C3H Mice, Inbred C57BL Murine hepatitis virus / immunology* Spleen / cytology |
| Grant Support | |
ID/Acronym/Agency:
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RR04507/RR/NCRR NIH HHS |
| Chemical | |
Reg. No./Substance:
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11028-71-0/Concanavalin A; 53-86-1/Indomethacin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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