Direct physical interaction involving CD40 ligand on T cells and CD40 on B cells is required to propagate MMTV
The propagation of mouse mammary tumor virus (MMTV) has been analyzed in mice defective for expnasion of CD40 ligand (CD40L). Mice with endogenous viral superantigen (SAG) delete T cells with cognate Vβ independent of CD40L expression. Nevertheless, CD40L − mice do not show deletion of cognate T cel...
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| Veröffentlicht in: | Immunity (Cambridge, Mass.) Mass.), 1995-07, Vol.3 (1), p.139-146 |
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| creator | Chervonsky, Alexander V. Xu, Jianchao Barlow, Avlin K. Khery, Marilyn Flavell, Richard A. Janeway, Charles A. |
| description | The propagation of mouse mammary tumor virus (MMTV) has been analyzed in mice defective for expnasion of CD40 ligand (CD40L). Mice with endogenous viral superantigen (SAG) delete T cells with cognate Vβ independent of CD40L expression. Nevertheless, CD40L
− mice do not show deletion of cognate T cells after being exposed to infectious MMTV and have greatly diminished viral replication. The response of CD40L
− T cells to SAG in vitro is also Impaired, but can be reconstituted by adding B cells activated by recombinant CD40L to express costimulatory molecules. Thus, direct CD40L-dependent B cell activation appears to be a critical step In the life cycle of MMTV. The initial step in SAG-dependent T cell activation, and hence the MMTV life cycle, may be mediated by non-B cells, because splenocytes from B cell-deficient SAG-transgenic mice are able to activate cognate T cells. |
| doi_str_mv | 10.1016/1074-7613(95)90166-3 |
| format | Article |
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− mice do not show deletion of cognate T cells after being exposed to infectious MMTV and have greatly diminished viral replication. The response of CD40L
− T cells to SAG in vitro is also Impaired, but can be reconstituted by adding B cells activated by recombinant CD40L to express costimulatory molecules. Thus, direct CD40L-dependent B cell activation appears to be a critical step In the life cycle of MMTV. The initial step in SAG-dependent T cell activation, and hence the MMTV life cycle, may be mediated by non-B cells, because splenocytes from B cell-deficient SAG-transgenic mice are able to activate cognate T cells.</description><identifier>ISSN: 1074-7613</identifier><identifier>EISSN: 1097-4180</identifier><identifier>DOI: 10.1016/1074-7613(95)90166-3</identifier><identifier>PMID: 7542547</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Animals ; Antigens, CD - physiology ; Antigens, Differentiation, B-Lymphocyte - physiology ; B-Lymphocytes - physiology ; B-Lymphocytes - virology ; CD40 Antigens ; CD40 Ligand ; Cell Communication ; Lymphocyte Activation ; Mammary Tumor Virus, Mouse - physiology ; Membrane Glycoproteins - physiology ; Mice ; Mice, Knockout ; T-Lymphocytes - physiology ; T-Lymphocytes - virology ; Virus Replication</subject><ispartof>Immunity (Cambridge, Mass.), 1995-07, Vol.3 (1), p.139-146</ispartof><rights>1995</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-4d1556f8dad748c8341142f37df7b1604aabf2af5a1ee8fa0a54243c3e7ce9593</citedby><cites>FETCH-LOGICAL-c434t-4d1556f8dad748c8341142f37df7b1604aabf2af5a1ee8fa0a54243c3e7ce9593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/1074-7613(95)90166-3$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,778,782,3539,27911,27912,45982</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/7542547$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chervonsky, Alexander V.</creatorcontrib><creatorcontrib>Xu, Jianchao</creatorcontrib><creatorcontrib>Barlow, Avlin K.</creatorcontrib><creatorcontrib>Khery, Marilyn</creatorcontrib><creatorcontrib>Flavell, Richard A.</creatorcontrib><creatorcontrib>Janeway, Charles A.</creatorcontrib><title>Direct physical interaction involving CD40 ligand on T cells and CD40 on B cells is required to propagate MMTV</title><title>Immunity (Cambridge, Mass.)</title><addtitle>Immunity</addtitle><description>The propagation of mouse mammary tumor virus (MMTV) has been analyzed in mice defective for expnasion of CD40 ligand (CD40L). Mice with endogenous viral superantigen (SAG) delete T cells with cognate Vβ independent of CD40L expression. Nevertheless, CD40L
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− T cells to SAG in vitro is also Impaired, but can be reconstituted by adding B cells activated by recombinant CD40L to express costimulatory molecules. Thus, direct CD40L-dependent B cell activation appears to be a critical step In the life cycle of MMTV. 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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE; Cell Press Free Archives; EZB-FREE-00999 freely available EZB journals |
| subjects | Animals Antigens, CD - physiology Antigens, Differentiation, B-Lymphocyte - physiology B-Lymphocytes - physiology B-Lymphocytes - virology CD40 Antigens CD40 Ligand Cell Communication Lymphocyte Activation Mammary Tumor Virus, Mouse - physiology Membrane Glycoproteins - physiology Mice Mice, Knockout T-Lymphocytes - physiology T-Lymphocytes - virology Virus Replication |
| title | Direct physical interaction involving CD40 ligand on T cells and CD40 on B cells is required to propagate MMTV |
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