Expression of Ia Antigens on Hapten-specific B Cells. I. Delineation of B-cell Subpopulations
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General Medicine
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The nonimmune adult spleen contains at least two B-cell subpopulations. The majority of primary B cells express cell surface Ia determinants and have the capacity to give rise to IgG antibody-producing clones after T-cell dependent antigenic stimulation. There is also a small subpopulation of primary B cells which are, by definition, Ia negative, since their activity is not eliminated by negative selection with anti-Ia serum and complement. The Ia-negative B cells give rise to clones that produce only IgM antibody. These B-cell subsets may form a continuum in B-cell maturation, or they may exist as discrete B-cell lineages. Since the cellular expression of Ia antigens appears to correlate with the ability of the B cell to generate IgG-producing clones, it is speculated that Ia molecules may have a role in the IgM to IgG B-cell switch mechanism.
Curtis J, Nordin A Immunology. 1984; 52(4):711-9.
PMID: 6378771 PMC: 1454635.
Allogeneic carrier-specific enhancement of hapten-specific secondary B-cell responses.
Pierce S, Klinman N J Exp Med. 1976; 144(5):1254-62.
PMID: 1086883 PMC: 2190464. DOI: 10.1084/jem.144.5.1254.
Delovitch T, Biggin J, Fung F J Exp Med. 1978; 147(4):1198-212.
PMID: 418135 PMC: 2184251. DOI: 10.1084/jem.147.4.1198.
Geha R, Hyslop N, Alami S, Farah F, Schneeberger E, Rosen F J Clin Invest. 1979; 64(2):385-91.
PMID: 313404 PMC: 372130. DOI: 10.1172/JCI109473.
Delovitch T, McDevitt H J Exp Med. 1977; 146(4):1019-32.
PMID: 302311 PMC: 2180825. DOI: 10.1084/jem.146.4.1019.