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2018 ; 8
(1
): 10821
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
P31-43, an undigested gliadin peptide, mimics and enhances the innate immune
response to viruses and interferes with endocytic trafficking: a role in celiac
disease
#MMPMID30018339
Nanayakkara M
; Lania G
; Maglio M
; Auricchio R
; De Musis C
; Discepolo V
; Miele E
; Jabri B
; Troncone R
; Auricchio S
; Barone MV
Sci Rep
2018[Jul]; 8
(1
): 10821
PMID30018339
show ga
Celiac disease (CD) is an autoimmune disease characterized by inflammation of the
intestinal mucosa due to an immune response to wheat gliadins. Some gliadin
peptides are resistant to intestinal digestion (e.g., A-gliadin P31-43) and
induce a stress/innate immune response, but the reason why they are dangerous in
the intestines of patients with CD is unknown. In the present study, P31-43
activated IFN-?, a mediator of the innate immune response in CD, in the intestine
of subjects with CD and an enterocyte cell line, CaCo-2. P31-43 cooperated with a
viral ligand to activate the TLR7 pathway by interfering with endocytic
trafficking. Based on these results, the vesicular pathway regulates the
innate/inflammatory response to viral ligands and bioactive dietary peptides.
Suggesting that together with viral infections, alimentary proteins able to mimic
and potentiate the innate immune response to viruses, can trigger an autoimmune
disease such as CD.