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001-es BibID:	BIBFORM100414
035-os BibID:	(cikkazonosító)2498 (scopus)85125084009 (wos)000772754000001
Első szerző:	Diós Ádám (molekuláris biológus)
Cím:	Changes in Non-deamidated versus Deamidated Epitope Targeting and Disease Prediction during the Antibody Response to Gliadin and Transglutaminase of Infants at Risk for Celiac Disease / Ádám Diós, Bharani Srinivasan, Judit Gyimesi, Katharina Werkstetter, Rudolf Valenta, Sibylle Koletzko, Ilma R. Korponay-Szabó
Dátum:	2022
ISSN:	1661-6596 1422-0067
Megjegyzések:	Celiac disease (CeD) is a conditional autoimmune disorder with T-cell mediated immune response to gluten coupled with antibody production to gliadin and the self-protein tissue transglutaminase (TG2). TG2 contributes to CeD pathomechanism by deamidating gliadin, thereby generating more immunogenic peptides. Anti-gliadin antibodies may appear before the autoantibody production. The scope of this study was to dissect these early antibody responses by investigating serum sam-ples collected during the PreventCD prospective double-blind study (www.preventcd.com), where infants with high CeD risk were randomized to 200 mg daily gluten intake or to placebo from 4 to 6 months of age, then followed by frequent blood testing on regular gluten consumption in both groups. After primary gluten intake, children with or without later CeD produced IgA and IgG antibodies which preferentially recognized non-deamidated gliadin peptides. At CeD development with anti-TG2 seroconversion, there was a significant increase in the antibody reac-tion toward deamidated gliadin peptides (DGP) with maturation in the binding strength for the PEQPFP gamma-gliadin core peptide. The earliest produced autoantibodies targeted TG2's celiac epitope 2. Our results reveal a qualitative change in the gliadin-directed humoral immune re-sponse at the time when anti-TG2 antibodies appear, but anti-DGP antibodies in the absence of anti-TG2 antibodies are not disease-predictive.
Tárgyszavak:	Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk celiac disease deamidated gliadin peptides transglutaminase antibody
Megjelenés:	International Journal Of Molecular Sciences. - 23 : 5 (2022), p. 1-16. -
További szerzők:	Srinivasan, Bharani Gyimesi Judit Werkstetter, Katharina (gyermekgyógyász, gasztroenterológus) Valenta, Rudolf Koletzko, Sibylle Korponay-Szabó Ilma (1959-) (gyermekgyógyász)
Pályázati támogatás:	NKFIH 120392 OTKA EFOP-3.6.1-16-2016-00022 EFOP DTP3-571-1.2 Egyéb
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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