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In vivo tissue distribution of CD4 lymphocytes in mice determined by radioimmunoscintigraphy with an (111)In-labeled anti-CD4 monoclonal antibody

Rubin, Robert H. and Baltimore, David and Chen, Benjamin K. and Wilkinson, Robert A. and Fischman, Alan J. (1996) In vivo tissue distribution of CD4 lymphocytes in mice determined by radioimmunoscintigraphy with an (111)In-labeled anti-CD4 monoclonal antibody. Proceedings of the National Academy of Sciences of the United States of America, 93 (15). pp. 7460-7463. ISSN 0027-8424.

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The tissue distribution of CD4 lymphocytes in normal C57/BL mice and CD4 knockout mice was determined by biodistribution measurements and gamma camera imaging with an In-111-labeled rat IgG(2b) monoclonal antibody directed against the murine CD-4 antigen. In normal mice, high concentrations of antibody accumulated in the spleen and lymph nodes, at 45 hr after injection, the concentrations of radiolabel in the spleen and lymph nodes of normal mice were 10- to 20-fold greater than in the corresponding tissues of the CD4 knockout mice and nonlymphoid tissues of both types of mice. At 24 and 45 hr, gamma camera images showed high concentrations of radiolabeled antibody in lymph nodes and spleen of normal but not knockout mice. These results indicate that radioimmunoscintigraphy with In-111-anti-CD4 is an excellent method for studying tissue distribution of CD4 lymphocytes in mice. Using an equivalent anti-human CD4 antibody, this method might be useful for studying the pathophysiology of conditions in which these cells play a critical role and for monitoring therapies for these disorders.

Item Type:Article
Baltimore, David0000-0001-8723-8190
Additional Information:Copyright © 1996 by the National Academy of Sciences. Contributed by David Baltimore, April 7, 1996. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. §1734 solely to indicate this fact.
Record Number:CaltechAUTHORS:RUBpnas96
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:886
Deposited By: Tony Diaz
Deposited On:01 Nov 2005
Last Modified:06 Nov 2017 23:15

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