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dc.contributor.authorFernandes, Dancella M.
dc.contributor.authorBaird, Allison Michelle
dc.contributor.authorBerg, Leslie J.
dc.contributor.authorRock, Kenneth L.
dc.date2022-08-11T08:09:31.000
dc.date.accessioned2022-08-23T16:34:08Z
dc.date.available2022-08-23T16:34:08Z
dc.date.issued1999-07-22
dc.date.submitted2009-03-10
dc.identifier.citationJ Immunol. 1999 Aug 1;163(3):1306-14.
dc.identifier.issn0022-1767 (Print)
dc.identifier.pmid10415028
dc.identifier.urihttp://hdl.handle.net/20.500.14038/38263
dc.description.abstractE710.2.3 is a murine thymic lymphoma cell line with an immature phenotype (CD4-CD8-) that proliferates in response to thymocytes or PMA when cultured at low density and proliferates spontaneously when grown at high density. To identify functional molecules on this cell line, we screened for mAbs that could block its proliferation. A hamster mAb, DMF10.62.3, inhibited the spontaneous, thymocyte-induced, and PMA-stimulated proliferation of E710.2.3 in vitro and induced these cells to undergo apoptosis. The mAb also caused homotypic aggregation of E710.2.3, which was inhibited by cytochalasin B, trifluoperazine, a combination of sodium azide and 2-deoxyglucose, EDTA, incubation at 4 degrees C, or treatment with paraformaldehyde. The DMF10 62.3 mAb stained a number of immortalized murine and human cell lines and, where tested, blocked their proliferation and caused death to varying extents by apoptosis. The molecule recognized by the mAb DMF10.62.3 was expressed on day 14 fetal thymus Thy1.2-positive cells. However, it was not detected on adult murine thymocytes, splenocytes, or bone marrow cells or on splenic LPS-activated B cells or Con A-activated T cells. The Ab immunoprecipitated a 40-kDa molecule from E710.2.3 that was not glycosylphosphatidylinositol linked. The data suggest that the molecule recognized by DMF62.3 is a novel cell surface molecule that may be involved in cell proliferation and/or cell death.
dc.language.isoen_US
dc.relation<a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&list_uids=10415028&dopt=Abstract">Link to Article in PubMed</a>
dc.relation.urlhttp://www.jimmunol.org/content/163/3/1306.full.pdf+html
dc.subjectAnimals
dc.subjectAntibodies, Blocking
dc.subjectAntibodies, Monoclonal
dc.subjectAntigens, Neoplasm
dc.subjectAntigens, Surface
dc.subjectApoptosis
dc.subjectCell Aggregation
dc.subjectCell Death
dc.subjectCell Line, Transformed
dc.subjectCricetinae
dc.subjectCricetulus
dc.subjectFetus
dc.subjectGlycosylphosphatidylinositols
dc.subjectHematopoietic Stem Cells
dc.subjectHumans
dc.subjectImmunosuppressive Agents
dc.subjectLymphocyte Activation
dc.subjectLymphoma, T-Cell
dc.subjectMice
dc.subjectMice, Inbred BALB C
dc.subjectMice, Inbred C57BL
dc.subjectMolecular Weight
dc.subjectPrecipitin Tests
dc.subjectT-Lymphocytes
dc.subjectTetradecanoylphorbol Acetate
dc.subjectTumor Cells, Cultured
dc.subjectLife Sciences
dc.subjectMedicine and Health Sciences
dc.titleA monoclonal antibody reactive with a 40-kDa molecule on fetal thymocytes and tumor cells blocks proliferation and stimulates aggregation and apoptosis
dc.typeJournal Article
dc.source.journaltitleJournal of immunology (Baltimore, Md. : 1950)
dc.source.volume163
dc.source.issue3
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/oapubs/1136
dc.identifier.contextkey770114
html.description.abstract<p>E710.2.3 is a murine thymic lymphoma cell line with an immature phenotype (CD4-CD8-) that proliferates in response to thymocytes or PMA when cultured at low density and proliferates spontaneously when grown at high density. To identify functional molecules on this cell line, we screened for mAbs that could block its proliferation. A hamster mAb, DMF10.62.3, inhibited the spontaneous, thymocyte-induced, and PMA-stimulated proliferation of E710.2.3 in vitro and induced these cells to undergo apoptosis. The mAb also caused homotypic aggregation of E710.2.3, which was inhibited by cytochalasin B, trifluoperazine, a combination of sodium azide and 2-deoxyglucose, EDTA, incubation at 4 degrees C, or treatment with paraformaldehyde. The DMF10 62.3 mAb stained a number of immortalized murine and human cell lines and, where tested, blocked their proliferation and caused death to varying extents by apoptosis. The molecule recognized by the mAb DMF10.62.3 was expressed on day 14 fetal thymus Thy1.2-positive cells. However, it was not detected on adult murine thymocytes, splenocytes, or bone marrow cells or on splenic LPS-activated B cells or Con A-activated T cells. The Ab immunoprecipitated a 40-kDa molecule from E710.2.3 that was not glycosylphosphatidylinositol linked. The data suggest that the molecule recognized by DMF62.3 is a novel cell surface molecule that may be involved in cell proliferation and/or cell death.</p>
dc.identifier.submissionpathoapubs/1136
dc.contributor.departmentDepartment of Pathology
dc.source.pages1306-14


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