Studies on B-cell Memory. II. T-cell Independent Antigen Can Induce B-cell Memory
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Both athymic nude mice and normal mice primed with a T-cell independent antigen, i.e. dinitrophenylated dextran (DNP-DE), at a sub-immunogenic dose, produced very poor anti-DNP responses to a later challenge with the same antigen. B-cell memory was expressed, however, as an enhanced IgM response after the challenge of the DNP-DE-primed mice with the T-cell dependent antigen (dinitrophenylated haemocyanin, DNP-KLH) in the presence of functional T-cells. Moreover, DNP-DE-primed spleen cells also revealed an enhanced IgM response after adoptive transfer into irradiated recipients and challenge with DNP-DE. The injections of DNP-DE-primed nude mouse serum into unprimed mice resulted in the reduction of anti-DNP response to the immunization with DNP-DE. These results indicate that (a) T-cell independent DNP-DE causes the differentiation of B cells not only into antibody-forming cells but also into memory cells, (b) these memory cells can be triggered in situ by the T-cell dependent DNP-KLH in the presence of helper T cells but not by T-cell independent antigen, and (c) some humoral factor(s) induced by DNP-DE-priming seems to interfere with the expression of B-cell memory only when challenged with T-cell independent DNP-DE.
Hjalmsdottir A, Hasler F, Waeckerle-Men Y, Duda A, Lopez-Deber M, Pihlgren M NPJ Vaccines. 2024; 9(1):115.
PMID: 38909055 PMC: 11193769. DOI: 10.1038/s41541-024-00902-3.
Orson F, Rossen R, Shen X, Lopez A, Wu Y, Kosten T Am J Addict. 2013; 22(2):169-74.
PMID: 23414504 PMC: 4143984. DOI: 10.1111/j.1521-0391.2013.00314.x.
Altered Ig levels and antibody responses in mice deficient for the Fc receptor for IgM (FcμR).
Honjo K, Kubagawa Y, Jones D, Dizon B, Zhu Z, Ohno H Proc Natl Acad Sci U S A. 2012; 109(39):15882-7.
PMID: 22984178 PMC: 3465379. DOI: 10.1073/pnas.1206567109.
T-independent type II immune responses generate memory B cells.
Obukhanych T, Nussenzweig M J Exp Med. 2006; 203(2):305-10.
PMID: 16476769 PMC: 2118207. DOI: 10.1084/jem.20052036.
Tite J, Morrison C, Taylor R Immunology. 1981; 42(2):355-62.
PMID: 7007223 PMC: 1458085.