INSECT IMMUNITY - DEVELOPMENTAL AND INDUCIBLE ACTIVITY OF THE DROSOPHILA DIPTERICIN PROMOTER

被引：155

作者：

REICHHART, JM ^{[1
]}

MEISTER, M ^{[1
]}

DIMARCQ, JL ^{[1
]}

ZACHARY, D ^{[1
]}

HOFFMANN, D ^{[1
]}

RUIZ, C ^{[1
]}

RICHARDS, G ^{[1
]}

HOFFMANN, JA ^{[1
]}

机构：

[1] FAC MED STRASBOURG,INST CHIM BIOL,CNRS,GENET MOLEC EUCARYOTES LAB,INSERM,F-67085 STRASBOURG,FRANCE

来源：

EMBO JOURNAL | 1992年 / 11卷 / 04期

关键词：

ACUTE PHASE RESPONSE; ANTIBACTERIAL PEPTIDE; DIPTERICIN; INSECT IMMUNITY; TRANSGENIC DROSOPHILA;

D O I：

10.1002/j.1460-2075.1992.tb05191.x

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Diptericins are 9 kDa inducible antibacterial peptides initially isolated from immune haemolymph of Phormia (Diptera). Following the isolation of a Drosophila cDNA encoding a diptericin homologue, we have now cloned a genomic fragment containing the Drosophila diptericin gene. To dissect the regulation of this gene, we have transformed flies with a fusion gene in which the reporter beta-galactosidase gene is under the control of 2.2 kb upstream sequences of the diptericin gene. We show that such a fusion gene is inducible by injection of live bacteria or complete Freund's adjuvant and respects the tissue specific expression pattern of the resident diptericin gene. Our analysis reveals at least four distinct phases in the regulation of this gene: young larvae, late third instar larvae, pupae and adults. This complexity may be related to the presence in the upstream sequences of multiple copies of response elements previously characterized in genes encoding acute phase response proteins in mammals (e.g. NK-kappa-B, NF-kappa-B related, NF-IL6 response elements).

引用

页码：1469 / 1477

页数：9

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