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巨噬细胞的功能异质性

Functional heterogeneity of macrophages.

作者信息

Kávai M, Laczkó J, Csaba B

出版信息

Immunology. 1979 Apr;36(4):729-32.

Abstract

The antibody-binding activities of rabbit peritoneal macrophages separated on discontinuous gradients of Ficoll were investigated. The antibody was rabbit anti-ovalbumin IgG labelled with 125I. Of the five fractions obtained, one macrophage fraction was found to bind substantially more antibody than the others. These macrophages possessed more Fc receptor sites than the others and the number of Fc receptors (n) and the association constant (K) of these cells was calculated. By electron microscopy, the phagocytic activity of the subpopulation with most Fc receptors was less than that of the others.

摘要

研究了在不连续的Ficoll梯度上分离的兔腹膜巨噬细胞的抗体结合活性。抗体是用125I标记的兔抗卵清蛋白IgG。在获得的五个组分中,发现一个巨噬细胞组分比其他组分结合的抗体要多得多。这些巨噬细胞比其他巨噬细胞拥有更多的Fc受体位点,并计算了这些细胞的Fc受体数量(n)和结合常数(K)。通过电子显微镜观察,Fc受体最多的亚群的吞噬活性低于其他亚群。

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