BIOLOGICAL PROPERTIES OF A CD4 IMMUNOADHESIN

被引:157
作者
BYRN, RA [1 ]
MORDENTI, J [1 ]
LUCAS, C [1 ]
SMITH, D [1 ]
MARSTERS, SA [1 ]
JOHNSON, JS [1 ]
COSSUM, P [1 ]
CHAMOW, SM [1 ]
WURM, FM [1 ]
GREGORY, T [1 ]
GROOPMAN, JE [1 ]
CAPON, DJ [1 ]
机构
[1] HARVARD UNIV,NEW ENGLAND DEACONESS HOSP,SCH MED,DIV HEMATOL ONCOL,BOSTON,MA 02215
关键词
D O I
10.1038/344667a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
MOLECULAR fusions of CD4, the receptor for human immunodeficiency virus (HIV; refs 1-4), with immunoglobulin (termed CD4 immunoadhesins) possess both the gpl20-binding and HIV-blocking properties of recombinant soluble CD4, and certain properties of IgG, notably long plasma half-life and Fc receptor binding5,6. Here we show that a CD4 immunoadhesin can mediate antibody-dependent cell-mediated cytotoxicity (ADCC) towards HIV-infected cells, although, unlike natural anti-gpl20 antibodies, it does not allow ADCC towards uninfected CD4-expressing cells that have bound soluble gpl20 to the CD4 on their surface. In addition, CD4 immunoadhesin, like natural IgG molecules, is efficiently transferred across the placenta of a primate. These observations have implications for the therapeutic application of CD4 immunoadhesins, particularly in the area of perinatal transmission of HIV infection. © 1990 Nature Publishing Group.
引用
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页码:667 / 670
页数:4
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