Author:
Cobos Claudia,Bansal Paramjit S.,Wilson David T.,Jones Linda,Zhao Guangzu,Field Matthew A.,Eichenberger Ramon M.,Pickering Darren A.,Ryan Rachael Y. M.,Ratnatunga Champa N.,Miles John J.,Ruscher Roland,Giacomin Paul R.,Navarro Severine,Loukas Alex,Daly Norelle L.
Abstract
A decline in the prevalence of parasites such as hookworms appears to be correlated with the rise in non-communicable inflammatory conditions in people from high- and middle-income countries. This correlation has led to studies that have identified proteins produced by hookworms that can suppress inflammatory bowel disease (IBD) and asthma in animal models. Hookworms secrete a family of abundant netrin-domain containing proteins referred to as AIPs (Anti-Inflammatory Proteins), but there is no information on the structure-function relationships. Here we have applied a downsizing approach to the hookworm AIPs to derive peptides of 20 residues or less, some of which display anti-inflammatory effects when co-cultured with human peripheral blood mononuclear cells and oral therapeutic activity in a chemically induced mouse model of acute colitis. Our results indicate that a conserved helical region is responsible, at least in part, for the anti-inflammatory effects. This helical region has potential in the design of improved leads for treating IBD and possibly other inflammatory conditions.
Cited by
2 articles.
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