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G Uzé  G Lutfalla  I Gresser 《Cell》1990,60(2):225-234
A cDNA coding for the human interferon alpha receptor has been cloned using a gene transfer approach. This consists of transferring human DNA to mouse cells and selecting for cells sensitive to human interferon alpha. The transfected cells expressed the human interferon alpha receptor, and a 5 kb human DNA was isolated from a secondary transfectant. This DNA defects an mRNA present in human cells and was used to clone a 2.7 kb cDNA from a library constructed from human Daudi cells. The sequence of the cDNA is presented. It codes for a glycoprotein of 557 amino acids with an N-terminal hydrophobic region and a single transmembrane-spanning segment. Mouse cells expressing the cDNA become sensitive to the antiviral activity of and express binding sites for human interferon alpha, demonstrating that the cloned cDNA encodes a functional human interferon alpha receptor.  相似文献
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On the varied biologic effects of interferon   总被引:35,自引:0,他引:35  
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Potent sheep anti-mouse interferon globulin has been used to determine the role of virus-induced interferon in mouse hepatitis virus type 3-infected susceptible (C57BL/6), semiresistant (C3H/He), and resistant (A/J) strains of mice. Injection of anti-interferon globulin accelerated the onset of death in C57BL/6 mice, induced almost 100% mortality in C3H/He mice that usually do not die of acute disease, and caused death in 4- and 6-week-old A/J mice, but not in older mice. We conclude that interferon is an important host defense factor in the initial response of different strains of mice to MHV-3 infection. Other factors, however, such as the capacity of macrophages to restrict viral multiplication probably underlie the genetically determined susceptibility or resistance of mice to MHV-3 infection.  相似文献
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