Development and characterization of a human B cell line that responds to B cell growth factor but not interleukin 2

Chien-Te Tseng, C. F. Springgate, T. H. Piela, Y. S. Choi

Research output: Contribution to journalArticle

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Abstract

The human lymphoblastoid cell line we present here proliferated in response to a 14,000 m.w. B cell growth factor (BCGF), and not to interleukin 2 (IL 2). This cell line, designated B-A3, was established by Epstein Barr virus (EBV) transformation of Staphylococcus aureus Cowan I (SAC)-activated spleen B cells, and has been maintained in RPMI 1640 medium complemented with 15% fetal calf serum (FCS) without the addition of other exogenous growth factors. A proliferative response, as measured by [3H]thymidine uptake of B-A3 cells was significantly induced by either commercial IL 2-free human BCGF preparations, or phytohemagglutinin-stimulated mixed lymphocyte culture supernatant at all FCS concentrations used in the assay. The most marked proliferation due to BCGF, however, was observed in the absence of FCS. This BCGF-induced proliferation was not influenced by IL 2 or interferon-γ (IFN-γ), because both recombinant IL 2 and IFN-γ failed to induce proliferation. The response of B-A3 cells to a specific BCGF was additionally indicated by the responsiveness of this cell line to BCGF purified by a series of chromatographic steps. The BCGF to which B-A3 cells responded had a m.w. of 14,000 and was similar to low m.w. BCGF reported from other laboratories. Surface characterization of B-A3 cells, analyzed by flow cytometry with a panel of monoclonal antibodies, demonstrated that the majority of B-A3 cells were stained positively with Leu-12, HLA-DR, and surface IgG markers, whereas staining with surface IgM, IgD markers, pan T cell markers (Leu-4 and Leu-9), and IL 2 receptor (Tac) were consistently negative. Taken together, the human lymphoblastoid cell line we present here responded specifically to a low m.w. BCGF. This cell line may be of value in the purification of BCGF to homogeneity, in studies of the interactions of BCGF with human B cells, and in the identification of the BCGF receptor.

Original languageEnglish (US)
Pages (from-to)2554-2560
Number of pages7
JournalJournal of Immunology
Volume138
Issue number8
StatePublished - 1987
Externally publishedYes

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Interleukin-2
Intercellular Signaling Peptides and Proteins
B-Lymphocytes
Cell Line
Interferons
Serum
Immunoglobulin D
Growth Factor Receptors
Interleukin-2 Receptors
Phytohemagglutinins
HLA-DR Antigens
Human Herpesvirus 4
Thymidine
Immunoglobulin M
Staphylococcus aureus
Flow Cytometry
Spleen
Immunoglobulin G
Monoclonal Antibodies
Lymphocytes

ASJC Scopus subject areas

  • Immunology

Cite this

Development and characterization of a human B cell line that responds to B cell growth factor but not interleukin 2. / Tseng, Chien-Te; Springgate, C. F.; Piela, T. H.; Choi, Y. S.

In: Journal of Immunology, Vol. 138, No. 8, 1987, p. 2554-2560.

Research output: Contribution to journalArticle

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abstract = "The human lymphoblastoid cell line we present here proliferated in response to a 14,000 m.w. B cell growth factor (BCGF), and not to interleukin 2 (IL 2). This cell line, designated B-A3, was established by Epstein Barr virus (EBV) transformation of Staphylococcus aureus Cowan I (SAC)-activated spleen B cells, and has been maintained in RPMI 1640 medium complemented with 15{\%} fetal calf serum (FCS) without the addition of other exogenous growth factors. A proliferative response, as measured by [3H]thymidine uptake of B-A3 cells was significantly induced by either commercial IL 2-free human BCGF preparations, or phytohemagglutinin-stimulated mixed lymphocyte culture supernatant at all FCS concentrations used in the assay. The most marked proliferation due to BCGF, however, was observed in the absence of FCS. This BCGF-induced proliferation was not influenced by IL 2 or interferon-γ (IFN-γ), because both recombinant IL 2 and IFN-γ failed to induce proliferation. The response of B-A3 cells to a specific BCGF was additionally indicated by the responsiveness of this cell line to BCGF purified by a series of chromatographic steps. The BCGF to which B-A3 cells responded had a m.w. of 14,000 and was similar to low m.w. BCGF reported from other laboratories. Surface characterization of B-A3 cells, analyzed by flow cytometry with a panel of monoclonal antibodies, demonstrated that the majority of B-A3 cells were stained positively with Leu-12, HLA-DR, and surface IgG markers, whereas staining with surface IgM, IgD markers, pan T cell markers (Leu-4 and Leu-9), and IL 2 receptor (Tac) were consistently negative. Taken together, the human lymphoblastoid cell line we present here responded specifically to a low m.w. BCGF. This cell line may be of value in the purification of BCGF to homogeneity, in studies of the interactions of BCGF with human B cells, and in the identification of the BCGF receptor.",
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N2 - The human lymphoblastoid cell line we present here proliferated in response to a 14,000 m.w. B cell growth factor (BCGF), and not to interleukin 2 (IL 2). This cell line, designated B-A3, was established by Epstein Barr virus (EBV) transformation of Staphylococcus aureus Cowan I (SAC)-activated spleen B cells, and has been maintained in RPMI 1640 medium complemented with 15% fetal calf serum (FCS) without the addition of other exogenous growth factors. A proliferative response, as measured by [3H]thymidine uptake of B-A3 cells was significantly induced by either commercial IL 2-free human BCGF preparations, or phytohemagglutinin-stimulated mixed lymphocyte culture supernatant at all FCS concentrations used in the assay. The most marked proliferation due to BCGF, however, was observed in the absence of FCS. This BCGF-induced proliferation was not influenced by IL 2 or interferon-γ (IFN-γ), because both recombinant IL 2 and IFN-γ failed to induce proliferation. The response of B-A3 cells to a specific BCGF was additionally indicated by the responsiveness of this cell line to BCGF purified by a series of chromatographic steps. The BCGF to which B-A3 cells responded had a m.w. of 14,000 and was similar to low m.w. BCGF reported from other laboratories. Surface characterization of B-A3 cells, analyzed by flow cytometry with a panel of monoclonal antibodies, demonstrated that the majority of B-A3 cells were stained positively with Leu-12, HLA-DR, and surface IgG markers, whereas staining with surface IgM, IgD markers, pan T cell markers (Leu-4 and Leu-9), and IL 2 receptor (Tac) were consistently negative. Taken together, the human lymphoblastoid cell line we present here responded specifically to a low m.w. BCGF. This cell line may be of value in the purification of BCGF to homogeneity, in studies of the interactions of BCGF with human B cells, and in the identification of the BCGF receptor.

AB - The human lymphoblastoid cell line we present here proliferated in response to a 14,000 m.w. B cell growth factor (BCGF), and not to interleukin 2 (IL 2). This cell line, designated B-A3, was established by Epstein Barr virus (EBV) transformation of Staphylococcus aureus Cowan I (SAC)-activated spleen B cells, and has been maintained in RPMI 1640 medium complemented with 15% fetal calf serum (FCS) without the addition of other exogenous growth factors. A proliferative response, as measured by [3H]thymidine uptake of B-A3 cells was significantly induced by either commercial IL 2-free human BCGF preparations, or phytohemagglutinin-stimulated mixed lymphocyte culture supernatant at all FCS concentrations used in the assay. The most marked proliferation due to BCGF, however, was observed in the absence of FCS. This BCGF-induced proliferation was not influenced by IL 2 or interferon-γ (IFN-γ), because both recombinant IL 2 and IFN-γ failed to induce proliferation. The response of B-A3 cells to a specific BCGF was additionally indicated by the responsiveness of this cell line to BCGF purified by a series of chromatographic steps. The BCGF to which B-A3 cells responded had a m.w. of 14,000 and was similar to low m.w. BCGF reported from other laboratories. Surface characterization of B-A3 cells, analyzed by flow cytometry with a panel of monoclonal antibodies, demonstrated that the majority of B-A3 cells were stained positively with Leu-12, HLA-DR, and surface IgG markers, whereas staining with surface IgM, IgD markers, pan T cell markers (Leu-4 and Leu-9), and IL 2 receptor (Tac) were consistently negative. Taken together, the human lymphoblastoid cell line we present here responded specifically to a low m.w. BCGF. This cell line may be of value in the purification of BCGF to homogeneity, in studies of the interactions of BCGF with human B cells, and in the identification of the BCGF receptor.

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