期刊
JOURNAL OF LEUKOCYTE BIOLOGY
卷 108, 期 2, 页码 659-671出版社
OXFORD UNIV PRESS
DOI: 10.1002/JLB.5MR0320-200R
关键词
autoimmunity; biliary epithelial cells; primary biliary cholangitis; TLR
资金
- Italian Ministry of Health [PE-2016-02363915, GR-2018-12367794]
- EASL Juan Rodes fellowship
- Sir Jules Thorn Charitable Trust
Primary biliary cholangitis (PBC) is a cholestatic liver disease characterized by the destruction of the small and medium bile ducts. Its pathogenesis is still unknown. Despite the genome wide association study findings, the therapies targeting the cytokines pathway, tested so far, have failed. The concept of the biliary epithelium as a key player of the PBC pathogenesis has emerged over the last few years. It is now well accepted that the biliary epithelial cells (BECs) actively participate to the genesis of the damage. The chronic stimulation of BECs via microbes and bile changes the cell phenotype toward an active state, which, across the production of proinflammatory mediators, can recruit, retain, and activate immune cells. The consequent immune system activation can in turn damage BECs. Thus, the crosstalk between both innate and adaptive immune cells and the biliary epithelium creates a paracrine loop responsible for the disease progression. In this review, we summarize the evidence provided in literature about the role of BECs and the immune system in the pathogenesis of PBC. We also dissect the relationship between the immune system and the BECs, focusing on the unanswered questions and the future potential directions of the translational research and the cellular therapy in this area.
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