Semin Liver Dis 2014; 34(03): 255-264
DOI: 10.1055/s-0034-1383725
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Genetics and Epigenetics of Primary Biliary Cirrhosis

Ilaria Bianchi
1   Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano (MI), Italy
,
Marco Carbone
2   Division of Gastroenterology and Hepatology, Department of Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
3   Academic Department of Medical Genetics, University of Cambridge, Cambridge, United Kingdom
,
Ana Lleo
1   Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano (MI), Italy
,
Pietro Invernizzi
1   Liver Unit and Center for Autoimmune Liver Diseases, Humanitas Clinical and Research Center, Rozzano (MI), Italy
4   Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Davis, California
› Author Affiliations
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Publication History

Publication Date:
24 July 2014 (online)

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Abstract

Primary biliary cirrhosis (PBC) has been considered a multifactorial autoimmune disease presumably arising from a combination of environmental and genetic factors, with genetic inheritance mostly suggested by familial occurrence and high concordance rate among monozygotic twins. In the last decade, genome-wide association studies, new data on sex chromosome defects and instabilities, and initial evidence on the role of epigenetic abnormalities have strengthened the crucial importance of genetic and epigenetic factors in determining the susceptibility of PBC. High-throughput genetic studies in particular have revolutionized the search for genetic influences on PBC and have the potential to be translated into clinical and therapeutic applications, although more biological knowledge on candidate genes is now needed. In this review, these recent discoveries will be critically summarized with particular focus on the possible steps that may transfer genetic and epigenetic knowledge to direct health benefits in patients with PBC.