Mutations in TJP2 cause progressive cholestatic liver disease.

Nat Genet 2014 Apr 9;46(4):326-8. Epub 2014 Mar 9.

1] Institute of Liver Studies, Division of Transplantation Immunology and Mucosal Biology, King's College London School of Medicine, London, UK. [2] Paediatric Liver, GI and Nutrition Centre, King's College Hospital, London, UK.

Elucidating genetic causes of cholestasis has proved to be important in understanding the physiology and pathophysiology of the liver. Here we show that protein-truncating mutations in the tight junction protein 2 gene (TJP2) cause failure of protein localization and disruption of tight-junction structure, leading to severe cholestatic liver disease. These findings contrast with those in the embryonic-lethal knockout mouse, highlighting differences in redundancy in junctional complexes between organs and species.

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http://dx.doi.org/10.1038/ng.2918DOI Listing
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April 2014
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