Abstract
The subset of B lymphocytes having IgG on their surfaces was purified from human spleen and blood using a fluorescence-activated cell sorter (FACS). This subset constituted about 15% of B lymphocytes. The remaining non-IgG-bearing B cells were also obtained for study. These two populations were examined for (a) their expression of other surface immunoglobulin isotypes, (b) their ability to give rise to IgG- and IgM- secreting (plaque-forming) cells in a pokeweed mitogen (PWM)-driven culture system, and (c) their ability to proliferate in response to PWM stimulation. The results of these studies indicate that most IgG- bearing B cells also express surface IgM and IgD. Less than 15% had only IgG. The IgG-positive cell gave rise to both IgG and IgM plaque- forming cells when driven by PWM, and in fact were responsible for most of the total plaque response in both the IgG and IgM classes. The non- IgG-bearing B cells were depleted of both IgG and IgM responsiveness. The failure of the non-IgG-bearing B cells to give a strong response to PWM did not appear to be due to either depletion of accessory cells or to any suppressive influence. Finally, proliferation studies indicated that both the IgG-bearing and the non-IgG-bearing cells proliferated in the presence of PWM with a somewhat stronger proliferative response in the IgG-bearing cells. These results demonstrate that the IgG-bearing cell is not irreversibly committed to IgG production but can also give rise to IgM-secreting cells, and that human PWM-driven immunoglobulin secretory responses are predominantly due to a numerically small subset of B cells.
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Selected References
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- Ault K. A., Unanue E. R. Comparison of the two types of immunoglobulin-bearing lymphocytes in human blood with regard to capping and motility. Clin Immunol Immunopathol. 1977 May;7(3):394–404. doi: 10.1016/0090-1229(77)90074-5. [DOI] [PubMed] [Google Scholar]
- Ault K. A., Unanue E. R. Failure of B lymphocytes in human blood to regenerate surface immunoglobulin after its removal by antibody. J Immunol. 1977 Jul;119(1):327–329. [PubMed] [Google Scholar]
- Ault K. A., Weiner H. L. Isolation and characterization of the class of human blood lymphocytes responsible for antibody-dependent cellular cytotoxicity. Clin Immunol Immunopathol. 1978 Sep;11(1):60–76. doi: 10.1016/0090-1229(78)90204-0. [DOI] [PubMed] [Google Scholar]
- Chiorazzi N., Fu S. M., Kunkel H. G. Stimulation of human B lymphocytes by antibodies to IgM and IgG: functional evidence for the expression of IgG on B-lymphocyte surface membranes. Clin Immunol Immunopathol. 1980 Mar;15(3):301–313. doi: 10.1016/0090-1229(80)90042-2. [DOI] [PubMed] [Google Scholar]
- Coffman R. L., Cohn M. The class of surface immunoglobulin on virgin and memory B lymphocytes. J Immunol. 1977 May;118(5):1806–1815. [PubMed] [Google Scholar]
- Cooper M. D., Kubagawa H., Vogler L. B., Kearney J. F., Lawton A. R. Generation of clonal and isotype diversity. Adv Exp Med Biol. 1978;107:9–17. doi: 10.1007/978-1-4684-3369-2_2. [DOI] [PubMed] [Google Scholar]
- Fauci A. S. Human B cell function in a polyclonally induced plaque forming cell system. Cell triggering and immunoregulation. Immunol Rev. 1979;45:93–116. doi: 10.1111/j.1600-065x.1979.tb00274.x. [DOI] [PubMed] [Google Scholar]
- Finkelman F. D., Lipsky P. E. The role of cell membrane immunoglobulin in primate B lymphocyte differentiation. Immunol Rev. 1979;45:117–139. doi: 10.1111/j.1600-065x.1979.tb00275.x. [DOI] [PubMed] [Google Scholar]
- Fu S. M., Winchester R. J., Kunkel H. G. Similar idiotypic specificity for the membrane IgD and IgM of human B lymphocytes. J Immunol. 1975 Jan;114(1 Pt 1):250–252. [PubMed] [Google Scholar]
- Gronowicz E. S., Doss C., Assisi F., Vitetta E. S., Coffman R. L., Strober S. Surface Ig isotypes on cells responding to lipopolysaccharide by IgM and IgG secretion. J Immunol. 1979 Nov;123(5):2049–2056. [PubMed] [Google Scholar]
- Gronowicz E. S., Doss C., Schröder J. Activation to IgG secretion by lipopolysaccharide requires several proliferation cycles. J Immunol. 1979 Nov;123(5):2057–2062. [PubMed] [Google Scholar]
- Gronowicz E., Coutinho A., Melchers F. A plaque assay for all cells secreting Ig of a given type or class. Eur J Immunol. 1976 Aug;6(8):588–590. doi: 10.1002/eji.1830060812. [DOI] [PubMed] [Google Scholar]
- Mason D. W. The class of surface immunoglobulin on cells carrying IgG memory in rat thoracic duct lymph: the size of the subpopulation mediating IgG memory. J Exp Med. 1976 May 1;143(5):1122–1130. doi: 10.1084/jem.143.5.1122. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Okumura K., Julius M. H., Tsu T., Herzenberg L. A., Herzenberg L. A. Demonstration that IgG memory is carried by IgG-bearing cells. Eur J Immunol. 1976 Jul;6(7):467–472. doi: 10.1002/eji.1830060704. [DOI] [PubMed] [Google Scholar]
- Pierce C. W., Solliday S. M., Asofsky R. Immune responses in vitro. IV. Suppression of primary M, G, and A plaque-forming cell responses in mouse spleen cell cultures by class-specific antibody to mouse immunoglobulins. J Exp Med. 1972 Mar 1;135(3):675–697. doi: 10.1084/jem.135.3.675. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rowe D. S., Hug K., Forni L., Pernis B. Immunoglobulin D as a lymphocyte receptor. J Exp Med. 1973 Oct 1;138(4):965–972. doi: 10.1084/jem.138.4.965. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Vitetta E. S., Forman J., Kettman J. R. Cell surface immunoglobulin. XVIII. Functional differences of B lymphocytes bearing different surface immunoglobulin isotypes. J Exp Med. 1976 May 1;143(5):1055–1065. doi: 10.1084/jem.143.5.1055. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Winchester R. J., Fu S. M., Hoffman T., Kunkel H. G. IgG on lymphocyte surfaces; technical problems and the significance of a third cell population. J Immunol. 1975 Apr;114(4):1210–1212. [PubMed] [Google Scholar]
- Yuan D., Vitetta E. S., Kettman J. R. Cell surface immunoglobulin. XX. Antibody responsiveness of subpopulations of B lymphocytes bearing different isotypes. J Exp Med. 1977 Jun 1;145(6):1421–1435. doi: 10.1084/jem.145.6.1421. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zan-Bar I., Strober S., Vitetta E. S. The relationship between surface immunoglobulin isotype and immune function of murine B lymphocytes. I. Surface immunoglobulin isotypes on primed B cells in the spleen. J Exp Med. 1977 May 1;145(5):1188–1205. doi: 10.1084/jem.145.5.1188. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zan-Bar I., Strober S., Vitetta E. S. The relationship between surface immunoglobulin isotype and immune function of murine B lymphocytes. IV. Role of IgD-bearing cells in the propagation of immunologic memory. J Immunol. 1979 Aug;123(2):925–930. [PubMed] [Google Scholar]
- Zan-Bar I., Vitetta E. S., Assisi F., Strober S. The relationship between surface immunoglobulin isotype and immune function of murine B lymphocytes. III. Expression of a single predominant isotype on primed and unprimed B cells. J Exp Med. 1978 May 1;147(5):1374–1394. doi: 10.1084/jem.147.5.1374. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Zan-Bar I., Vitetta E. S., Strober S. The relationship between surface immunoglobulin isotype and immune function of murine B lymphocytes II. Surface immunoglobulin isotopes on unprimed B cells in the spleen. J Exp Med. 1977 May 1;145(5):1206–1215. doi: 10.1084/jem.145.5.1206. [DOI] [PMC free article] [PubMed] [Google Scholar]