Document Detail

Induction of synthesis of the cytolytic C9 (ninth component of complement)-related protein in human peripheral mononuclear cells by monoclonal antibody OKT3 or interleukin 2: correlation with cytotoxicity and lymphocyte phenotype.
MedLine Citation:
PMID:  3495005     Owner:  NLM     Status:  MEDLINE    
Synthesis of the cytolytic C9-related protein (C9RP) was induced by activation of resting human peripheral T lymphocytes with the anti-CD3 antibody OKT3 or interleukin 2. Comparison of cellular cytotoxicity and C9RP content at various times during activation yielded a coefficient of correlation r = 0.92. During OKT3 stimulation of peripheral mononuclear cells, maximal C9RP content and cytotoxicity were observed by day 2 or 3, with subsequent decline to baseline values by day 5, whereas during interleukin 2 stimulation, both parameters reached the maximal level at days 3-5. After fluorescence-activated cell sorting, C9RP and cytotoxicity were quantitated in CD4+, CD8+, and Leu-19+ subsets. In OKT3-activated CD8+ cells, C9RP increased to approximately 3 X 10(6) molecules per cell, with a corresponding increase in lysis of human melanoma cells mediated by anti-CD3-anti-melanoma monoclonal antibody conjugates. Interleukin 2-stimulated CD8+ cells showed similar increases, but cytotoxicity was conjugate-independent. Activated CD4+ cells showed minimal increase in C9RP content. Leu-19+ cells, which exhibit natural killer cell activity, had a high C9RP content (approximately 2.5 X 10(6) molecules per cell) before stimulation.
D E Martin; L S Zalman; G Jung; H J Müller-Eberhard
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  84     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  1987 May 
Date Detail:
Created Date:  1987-06-09     Completed Date:  1987-06-09     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2946-50     Citation Subset:  IM    
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MeSH Terms
Antibodies, Monoclonal* / immunology*
Antigens, Surface / immunology*
Complement C9 / biosynthesis*
Cytotoxicity, Immunologic*
Enzyme-Linked Immunosorbent Assay
Interleukin-2 / immunology*
Lymphocyte Activation*
Monocytes / immunology*
T-Lymphocytes / immunology*
Grant Support
Reg. No./Substance:
0/Antibodies, Monoclonal; 0/Antigens, Surface; 0/Complement C9; 0/Interleukin-2

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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