A monoclonal antibody against a new differentiation antigen of thymocytes

C. L. Sidman, L. Forni, G. Kohler, J. Langhorne, K. F. Lindahl

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

B14-2-14 is a monoclonal cytotoxic IgM antibody which reacts with thymocytes of all mouse strains tested. The fraction of positive cells (by visual immunofluorescence) varies between strains from about 25-45% in A.CA to 65-85% in C57BL/6, and high levels are dominant in F1 hybrids. In the periphery, the antigen is found on a few percent of lymph node and not on splenic T cells, and it is absent in nude mice. Among thymocytes, the distribution of the B14 determinant largely overlaps with that of the TL antigen and of molecules binding peanut agglutinin. The B14 antibody reacts only minimally with hydrocortisone-resistant thymus cells. Biochemical analysis shows that B14 antibody, anti-TL antibody and peanut agglutinin bind to separate molecules. The target of the B14 antibody may be either an immature, thymic form of Thy-1, or another molecule associated with it. Two polypeptides, of 40 and 35 kDa are precipitated by both B14 and anti-Thy-1 antibodies from biosynthetically labeled thymus cell lysates, and two others, of 27 and 17 kDa, from surface-iodinated thymus cell preparations. B14-2-14 offers an additional method for identification and selection of thymocytes at different stages of differentiation, and should also be useful for studies of the Thy-1 antigen.

Original languageEnglish (US)
Pages (from-to)481-488
Number of pages8
JournalEuropean Journal of Immunology
Volume13
Issue number6
StatePublished - 1983

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Differentiation Antigens
Thymocytes
Monoclonal Antibodies
Thymus Gland
Peanut Agglutinin
Antibodies
Thy-1 Antigens
Nude Mice
Fluorescent Antibody Technique
Immunoglobulin M
Hydrocortisone
Anti-Idiotypic Antibodies
Lymph Nodes
T-Lymphocytes
Antigens
Peptides
anti-Thy antibody

ASJC Scopus subject areas

  • Immunology

Cite this

Sidman, C. L., Forni, L., Kohler, G., Langhorne, J., & Lindahl, K. F. (1983). A monoclonal antibody against a new differentiation antigen of thymocytes. European Journal of Immunology, 13(6), 481-488.

A monoclonal antibody against a new differentiation antigen of thymocytes. / Sidman, C. L.; Forni, L.; Kohler, G.; Langhorne, J.; Lindahl, K. F.

In: European Journal of Immunology, Vol. 13, No. 6, 1983, p. 481-488.

Research output: Contribution to journalArticle

Sidman, CL, Forni, L, Kohler, G, Langhorne, J & Lindahl, KF 1983, 'A monoclonal antibody against a new differentiation antigen of thymocytes', European Journal of Immunology, vol. 13, no. 6, pp. 481-488.
Sidman CL, Forni L, Kohler G, Langhorne J, Lindahl KF. A monoclonal antibody against a new differentiation antigen of thymocytes. European Journal of Immunology. 1983;13(6):481-488.
Sidman, C. L. ; Forni, L. ; Kohler, G. ; Langhorne, J. ; Lindahl, K. F. / A monoclonal antibody against a new differentiation antigen of thymocytes. In: European Journal of Immunology. 1983 ; Vol. 13, No. 6. pp. 481-488.
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