Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 23, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/ijms23147513
Keywords
transglutaminases; type 2 transglutaminase; coeliac disease; gluten; autoimmunity; anti-TG2 antibodies; TG2 inhibitors
Funding
- Fondi di Ateneo per la Ricerca di Base, University of Salerno, Italy [ORSA218213]
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Type 2 transglutaminase (TG2) is the main autoantigen in coeliac disease (CD) and plays a significant role in its pathogenesis. Research has focused on finding specific and potent inhibitors for TG2, which could be used as alternative therapeutics for CD instead of a lifelong gluten-free diet.
Type 2 transglutaminase (TG2) is the main autoantigen in coeliac disease (CD), a widespread inflammatory enteropathy caused by the ingestion of gluten-containing cereals in genetically predisposed individuals. As a consequence, serum antibodies to TG2 represent a very useful marker in CD diagnosis. However, TG2 is also an important player in CD pathogenesis, for its ability to deamidate some Gln residues of gluten peptides, which become more immunogenic in CD intestinal mucosa. Given the importance of TG2 enzymatic activities in CD, several studies have sought to discover specific and potent inhibitors that could be employed in new therapeutical approaches for CD, as alternatives to a lifelong gluten-free diet. In this review, we summarise all the aspects regarding TG2 involvement in CD, including its enzymatic reactions in pathogenesis, the role of anti-TG2 antibodies in disease management, and the exploration of recent strategies to reduce deamidation or to use transamidation to detoxify gluten.
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