Human B cell precursors proliferate and express CD23 after CD40 ligation
Human B cell precursors proliferate and express CD23 after CD40 ligation
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CD40 连接后人类 B 细胞前体增殖并表达 CD23
DOI:
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发表时间:
1993
影响因子:
15.3
通讯作者:
J. Banchereau
中科院分区:
文献类型:
--
作者:
S. Saeland;rie Duver;I. Moreau;J. Banchereau
The CD40 surface membrane molecule plays an important role in the activation of mature human B cells, but its role in earlier stages of B lineage development is unknown. Here, we have investigated the effects of triggering the CD40 antigen on B cell precursors (BCP) by crosslinking with anti-CD40 antibody presented by Fc gamma-receptor type II-transfected murine Ltk- cells (CD40 system). CD10+ surface immunoglobulin negative (sIg-) BCP, freshly isolated from fetal bone marrow or precultured on stromal cells, proliferated in the CD40 system. This effect required the presence of IL-3, which acted as a specific cosignal among a panel of cytokines examined. The association of IL-10 and IL-7 potentiated the observed IL-3 and CD40-dependent BCP proliferation, demonstrating that IL-10 can act on early B lineage cells. CD40-dependent activation of fetal BCP did not favor maturation to sIg+ B cells, but resulted in the induction of high levels of surface membrane CD23. The emerging CD23+ BCP lacked sIg and CD10, and represented an important proportion of the cycling cells in the CD40- dependent cultures. Taken together, our data demonstrate that stimulation of the CD40 antigen induces expression of the CD23 gene, and regulates cell proliferation during normal human B cell ontogeny.
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影响因子:
20.3
作者:
Uckun,FM
通讯作者:
Uckun,FM
DOI:
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发表时间:
1991
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Wolf,ML;Buckley,JA;Goldfarb,A;Law,CL;LeBien,TW
通讯作者:
LeBien,TW
影响因子:
11.4
作者:
Wormann,B;Gesner,TG;Mufson,RA;LeBien,TW
通讯作者:
LeBien,TW
影响因子:
20.3
作者:
G. Salles;Chang‐Yan Chen;E. Reinherz;M. Shipp
通讯作者:
G. Salles;Chang‐Yan Chen;E. Reinherz;M. Shipp
DOI:
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发表时间:
1992
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Lederman,S;Yellin,MJ;Inghirami,G;Lee,JJ;Knowles,DM;Chess,L
通讯作者:
Chess,L