Qa-2 expression in the adult murine thymus. A unique marker for a mature thymic subset

J. Vernachio, M. Li, A. D. Donnenberg, Mark J Soloski

Research output: Contribution to journalArticle

Abstract

The MHC Ag, Qa-2, is expressed on all peripheral T cells, a subset of bone marrow cells, and to a lesser extent on B cells, The Qa-2 Ag is also expressed on 5 to 6% of normal adult murine thymocytes. Through the use of flow cytometry, counterflow centrifugal elutriation and acridine orange staining, we have analyzed the cell surface phenotype, cell size, and cell cycle status of this thymic population. Our studies indicate that Qa-2+ thymocytes are large, non-mitotic, G1 cells which have the cell surface phenotype of CD5+, CD3+, J11d(LO) and lack receptors for peanut agglutinin. This population can be further subdivided into three categories; CD4+/CD8-, CD4-/CD8+, and CD4-/CD8-. These data indicate that Qa-2 surface expression can only be detected on thymocytes in the final stages of differentiation. The Qa-2 Ag can be used as a cell surface marker to identify a unique subset of mature thymocytes.

Original languageEnglish (US)
Pages (from-to)48-56
Number of pages9
JournalJournal of Immunology
Volume142
Issue number1
StatePublished - 1989

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Thymocytes
Thymus Gland
Phenotype
Acridine Orange
T-Lymphocyte Subsets
Cell Size
Bone Marrow Cells
Population
Cell Cycle
Flow Cytometry
B-Lymphocytes
Staining and Labeling

ASJC Scopus subject areas

  • Immunology

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Qa-2 expression in the adult murine thymus. A unique marker for a mature thymic subset. / Vernachio, J.; Li, M.; Donnenberg, A. D.; Soloski, Mark J.

In: Journal of Immunology, Vol. 142, No. 1, 1989, p. 48-56.

Research output: Contribution to journalArticle

Vernachio, J. ; Li, M. ; Donnenberg, A. D. ; Soloski, Mark J. / Qa-2 expression in the adult murine thymus. A unique marker for a mature thymic subset. In: Journal of Immunology. 1989 ; Vol. 142, No. 1. pp. 48-56.
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