The Beta Subunit of the Interleukin-2 Receptor Mediates Interleukin-2 Induction of Anti-CD3 Redirected Cytotoxic Capability in Large Granular Lymphocytes

The interleukin 2 (IL 2) receptor was studied in three cases of large granular lymphocyte (LGL) lymphocytosis. All cases were nonreactive with anti-Tac monoclonal antibody (MoAb; recognizing the p55 alpha subunit of the IL 2 receptor). Sodium dodecyl sulfate (SDS)/polyacrylamide gel electrophoretic...

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Bibliographic Details
Published in:Blood Vol. 71; no. 3; pp. 825 - 828
Main Authors: Colamonici, O.R., Quinones, R., Rosolen, A., J.B., Trepel, Sausville, E., Phares, J.C., Gress, R., Poplack, D., Weber, J., Schechter, G.P., Neckers, L.M.
Format: Journal Article
Language:English
Published: Washington, DC Elsevier Inc 01-03-1988
The Americain Society of Hematology
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Summary:The interleukin 2 (IL 2) receptor was studied in three cases of large granular lymphocyte (LGL) lymphocytosis. All cases were nonreactive with anti-Tac monoclonal antibody (MoAb; recognizing the p55 alpha subunit of the IL 2 receptor). Sodium dodecyl sulfate (SDS)/polyacrylamide gel electrophoretic analysis (PAGE) of cells to which radiolabeled rIL 2 had been chemically crosslinked revealed uniform expression of the p70/75 beta subunit of the IL 2 receptor in the absence of the alpha subunit. Stimulation of this receptor with 2 nmol/L rIL 2 for five days led to acquisition of anti-CD3 redirected cytotoxicity. This was accompanied by a fivefold to tenfold elevation in the activity of intracellular N-alpha-benzyloxycarbonyl-L-lysine thiobenzyl esterase, an LGL granule marker enzyme. These effects of IL 2 did not require induction of the Tac peptide. © 1988 by Grune & Stratton, Inc. 0006-4971/88/7103-0040$3.00/0
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ISSN:0006-4971
1528-0020
DOI:10.1182/blood.V71.3.825.825