Critical evaluation of the role of the Toll-like receptor 18-Wheeler in the host defense of Drosophila.

Abstract:

:Essential aspects of innate immune responses to microbial infections appear to be conserved between insects and mammals. In particular, in both groups, transmembrane receptors of the Toll superfamily play a crucial role in activating immune defenses. The Drosophila Toll family member 18-Wheeler had been proposed to sense Gram-negative infection and direct selective expression of peptides active against Gram-negative bacteria. Here we re-examine the role of 18-Wheeler and show that in adults it is dispensable for immune responses. In larvae, 18wheeler is required for normal fat body development, and in mutant larvae induction of all antimicrobial peptide genes, and not only of those directed against Gram-negative bacteria, is compromised. 18-Wheeler does not qualify as a pattern recognition receptor of Gram-negative bacteria.

journal_name

EMBO Rep

journal_title

EMBO reports

authors

Ligoxygakis P,Bulet P,Reichhart JM

doi

10.1093/embo-reports/kvf130

keywords:

subject

Has Abstract

pub_date

2002-07-01 00:00:00

pages

666-73

issue

7

eissn

1469-221X

issn

1469-3178

pii

3/7/666

journal_volume

3

pub_type

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