Differential control of CD22 ligand expression on B and T lymphocytes, and enhanced expression in murine systemic lupus.
Differential control of CD22 ligand expression on B and T lymphocytes, and enhanced expression in murine systemic lupus.
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B 和 T 淋巴细胞上 CD22 配体表达的差异控制,以及小鼠系统性狼疮中表达的增强。
DOI:
10.1002/art.11021
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Izui,Shozo
中科院分区:
文献类型:
--
作者:
Lajaunias,Frederic;Ida,Akinori;Kikuchi,Shuichi;Fossati-Jimack,Liliane;Martinez-Soria,Eduardo;Moll,Thomas;Law,Che-Leung;Izui,Shozo
ObjectiveCD22, a B cell–restricted transmembrane glycoprotein, regulates B cell antigen receptor signaling upon interaction with α2,6‐linked sialic acid–bearing glycans, which act as ligands and are expressed on B and T cells. In this study, we investigated how the expression of CD22 ligand (CD22L) is modulated following lymphocyte activation or during the course of systemic lupus erythematosus (SLE).MethodsThe expression levels of CD22L on B and T cells in nonautoimmune mice were assessed by flow cytometric analysis using a soluble recombinant form of CD22, following stimulation with antigen or mitogen in vitro. In addition, the expression levels of CD22L on circulating lymphocytes were correlated with the progression of SLE in lupus‐prone mice.ResultsWe observed a constitutive expression of CD22L on mature B cells, but not T cells, in nonautoimmune mice. However, CD22L levels were up‐regulated selectively on T cells (but not B cells) stimulated with antigens in vitro, while their expression levels on B cells was up‐modulated following polyclonal activation with lipopolysaccharide. Furthermore, expression of CD22L was increased on circulating B cells (and to a lesser extent on T cells) in parallel with progression of SLE in several different lupus‐prone mice and in a cohort of (C57BL/6 × [NZB × C57BL/6.Yaa]F1) backcross mice.ConclusionThe expression of CD22L is differentially regulated in B and T cells, and high expression of CD22L on circulating B cells is a marker for development of severe SLE, suggesting a role for CD22–CD22L interactions in SLE as well as in the regulation of humoral immunity.
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DOI:
10.1056/nejm198511283132202
发表时间:
1985
期刊:
The New England journal of medicine
影响因子:
--
作者:
Stricker,RB;Abrams,DI;Corash,L;Shuman,MA
通讯作者:
Shuman,MA
DOI:
--
发表时间:
1986
期刊:
The Lancet
影响因子:
--
作者:
M. Contreras;P. Mollison;T. Baglin;M. P. Smith;B. Boughton;J. Durand;J. Harle;J. Verdot;P. Weiller;M. Mongin;C. Mueller;A. Salama
通讯作者:
A. Salama
DOI:
--
发表时间:
1986
期刊:
The Lancet
影响因子:
--
作者:
R. Biniek;R. Malessa;N. Brockmeyer;W. Luboldt
通讯作者:
W. Luboldt
影响因子:
4.6
作者:
A. Lurhuma;H. Riccomi;P. Masson
通讯作者:
A. Lurhuma;H. Riccomi;P. Masson
影响因子:
20.3
作者:
B. Bender;T. Quinn;J. Spivak
通讯作者:
J. Spivak