TY - JOUR
T1 - Cognate interactions between helper T cells and B cells
T2 - V. reconstitution of T helper cell function using purified plasma membranes from activated Th1 and Th2 T helper cells and lymphokines
AU - Noelle, R. J.
AU - Daum, J.
AU - Bartlett, W. C.
AU - McCann, J.
AU - Shepherd, D. M.
PY - 1991/2/15
Y1 - 1991/2/15
N2 - Th physically interact with B cells and produce lymphokines that influence B cell growth and differentiation. The respective contribution of cell contact and lymphokines to induction of B cell growth and differentiation was addressed using purified plasma membranes (PM) from resting Th (PMrest) and anti-CD3-activated Th (PMCD3) together with lymphokines. Results show that PMCD3, but not PMrest, induce 10% of resting B cells to enter the G1 phase of the cell cycle, with few B cells entering G1b and S/ G2. The inclusion of IL-4, but not IL-2, IL-5, or IFN-γ, amplifies the B cell response to PMCD3 by increasing the total percentage of activatable B cells to >40% and inducing B cell progression into G1b, S, and G2. Direct comparison between PMrest and PMCD3 purified from Th1 and Th2 indicate that both Th1 and Th2 induce similar levels of B cell proliferation in the presence of IL-4. Further, the lymphokine requirements for B cell proliferation induced by PMCD3 from Th1 and Th2 is indistinguishable. B cell differentiation to IgM, IgG1, and IgG2a synthesis by PMCD3 required IL-4 and IL-5. Using lymphokine conditions that supported B cell differentiation, PMCD3 purified from Th1 and Th2 induced similar levels of IgM, and IgG1. Given the functional data on PMCD3 from Th1 and Th2, the data indicate that there are no substantive differences between Th1- and Th2-derived PMCD3, and that the major differences in the ability of viable Th1 and Th2 to activate B cells is the lymphokines produced by the cells.
AB - Th physically interact with B cells and produce lymphokines that influence B cell growth and differentiation. The respective contribution of cell contact and lymphokines to induction of B cell growth and differentiation was addressed using purified plasma membranes (PM) from resting Th (PMrest) and anti-CD3-activated Th (PMCD3) together with lymphokines. Results show that PMCD3, but not PMrest, induce 10% of resting B cells to enter the G1 phase of the cell cycle, with few B cells entering G1b and S/ G2. The inclusion of IL-4, but not IL-2, IL-5, or IFN-γ, amplifies the B cell response to PMCD3 by increasing the total percentage of activatable B cells to >40% and inducing B cell progression into G1b, S, and G2. Direct comparison between PMrest and PMCD3 purified from Th1 and Th2 indicate that both Th1 and Th2 induce similar levels of B cell proliferation in the presence of IL-4. Further, the lymphokine requirements for B cell proliferation induced by PMCD3 from Th1 and Th2 is indistinguishable. B cell differentiation to IgM, IgG1, and IgG2a synthesis by PMCD3 required IL-4 and IL-5. Using lymphokine conditions that supported B cell differentiation, PMCD3 purified from Th1 and Th2 induced similar levels of IgM, and IgG1. Given the functional data on PMCD3 from Th1 and Th2, the data indicate that there are no substantive differences between Th1- and Th2-derived PMCD3, and that the major differences in the ability of viable Th1 and Th2 to activate B cells is the lymphokines produced by the cells.
UR - http://www.scopus.com/inward/record.url?scp=0026067058&partnerID=8YFLogxK
M3 - Article
C2 - 1704029
AN - SCOPUS:0026067058
SN - 0022-1767
VL - 146
SP - 1118
EP - 1124
JO - Journal of Immunology
JF - Journal of Immunology
IS - 4
ER -