Relationship ofhumanmacrophage agglutination factor tootherfibronectins
Relationship ofhumanmacrophage agglutination factor tootherfibronectins
复制标题
人巨噬细胞凝集因子与其他纤连蛋白的关系
DOI:
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发表时间:
1989
期刊:
影响因子:
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通讯作者:
M. Haak‐Frendscho
中科院分区:
文献类型:
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作者:
M. Haak‐Frendscho
SUMMARY Humanmacrophage agglutination factor (MAggF)isalymphokine witha numberofbiochemical andimmunochemical similarities tothefibronectins (FN). Thepresent study was undertaken to define this relationship more exactly. Peripheral bloodmononuclear cells (PBMC)andclonedhuman CD4+T-cell lines synthesized bothMAggFandimmunoreactive FN denovo following antigen or mitogen activation. MAggFproduced underthose conditions co-purified withan immunoreactive FN on gelatin-affinity andgel-filtration chromatography. ThisFN hadaconsistently slightly smaller relative molecular mass thanplasma FN on bothimmunoblotting andgelfiltration. Purified human MAggFwas extremely active: itagglutinated humanmonocytes atfM concentrations andwas upto 2,000,000 times more active inagglutinating mononuclear phagocytes thanotherpurified FN.The action ofMAggFon monocytes was dependent on atleast twoantigenically distinct cell-surface FN receptors. We suggest thattheextremeactivity ofMAggFisa result ofco-operative interactions between FN domains on theMAggFmolecules andmultiple distinct classes ofFN receptors on responding cells.
DOI:
10.1172/jci112752
发表时间:
1986
期刊:
The Journal of clinical investigation
影响因子:
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作者:
Peters,JH;Ginsberg,MH;Bohl,BP;Sklar,LA;Cochrane,CG
通讯作者:
Cochrane,CG