Abstract：
:Common features of immune-metabolic and inflammatory diseases such as metabolic syndrome, diabetes, obesity and cardiovascular diseases are an altered gut microbiota composition and a systemic pro-inflammatory state. We demonstrate that active immunization against the outer membrane protein of bacteria present in the gut enhances local and systemic immune control via apoE-mediated immune-modulation. Reduction of western-diet-associated inflammation was obtained for more than eighteen weeks after immunization. Immunized mice had reduced serum cytokine levels, reduced insulin and fasting glucose concentrations; and gene expression in both liver and visceral adipose tissue confirmed a reduced inflammatory steady-state after immunization. Moreover, both gut and atherosclerotic plaques of immunized mice showed reduced inflammatory cells and an increased M2 macrophage fraction. These results suggest that adaptive responses directed against microbes present in our microbiota have systemic beneficial consequences and demonstrate the key role of apoE in this mechanism that could be exploited to treat immune-metabolic diseases.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Saita D,Ferrarese R,Foglieni C,Esposito A,Canu T,Perani L,Ceresola ER,Visconti L,Burioni R,Clementi M,Canducci Fdoi
10.1038/srep29353subject
Has Abstractpub_date
2016-07-07 00:00:00pages
29353issn
2045-2322pii
srep29353journal_volume
6pub_type
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