Cross-Linking Surface Ig Delays CD40 Ligand- and IL-4-Induced B Cell Ig Class Switching and Reveals Evidence for Independent Regulation of B Cell Proliferation and Differentiation1
Cross-Linking Surface Ig Delays CD40 Ligand- and IL-4-Induced B Cell Ig Class Switching and Reveals Evidence for Independent Regulation of B Cell Proliferation and Differentiation1
复制标题
交联表面 Ig 延迟 CD40 配体和 IL-4 诱导的 B 细胞 Ig 类别转换,并揭示 B 细胞增殖和分化独立调节的证据1
作者:
J. Rush;J. Hasbold;P. Hodgkin
T cells stimulate B cells to divide and differentiate by providing activating signals in the form of inducible membrane-bound molecules and secreted cytokines. Provision of these signals in vitro reproduces many of the consequences of T-B collaboration in the absence of any form of Ag stimulation. Although clearly not obligatory, Ag signals appear to play an important regulatory role in numerous aspects of the B cell response. To examine directly the effect of an Ag signal, naive B cells were stimulated in the presence of rCD40 ligand, with or without IL-4 in the presence or absence of different anti-Ig mAbs. Anti-Ig mAbs exerted variable effects on the B cell division rate, from enhancement to no effect to inhibition. In contrast, all anti-Ig mAbs tested inhibited division-linked isotype switching to IgG1 and IgE. Thus, B cell Ag receptor ligands could modify the rates of B cell expansion and class switching independently. The ability of anti-Ig reagents to modify class switching suggests the B cell Ag receptor may play an important role in the selection of Ig isotypes during T cell-dependent humoral immune responses to Ags of different physical structure.
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DOI:
--
发表时间:
1993
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Peçanha,LM;Yamaguchi,H;Lees,A;Noelle,RJ;Mond,JJ;Snapper,CM
通讯作者:
Snapper,CM
DOI:
10.1073/pnas.92.8.3348
发表时间:
1995-04
影响因子:
11.1
作者:
H. Wortis;M. Teutsch;M. Higer;J. Zheng;D. Parker
通讯作者:
H. Wortis;M. Teutsch;M. Higer;J. Zheng;D. Parker
影响因子:
2.2
作者:
Ware,CF;Reade,JL;Der,LC
通讯作者:
Der,LC
DOI:
--
发表时间:
1995
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Snapper,CM;Kehry,MR;Castle,BE;Mond,JJ
通讯作者:
Mond,JJ
DOI:
--
发表时间:
1991
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Udhayakumar,V;Kumar,L;Subbarao,B
通讯作者:
Subbarao,B