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ISSN 1001-5256 (Print)
ISSN 2097-3497 (Online)
CN 22-1108/R
Volume 37 Issue 3
Mar.  2021
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Article Contents

Role of HCO3- umbrella in the pathogenesis of primary biliary cholangitis

DOI: 10.3969/j.issn.1001-5256.2021.03.043
  • Received Date: 2020-09-03
  • Accepted Date: 2020-10-22
  • Published Date: 2021-03-20
  • Primary biliary cholangitis (PBC) is an autoimmune disease. Although PBC has the features of autoimmune disease, it has poor response to immunosuppressants and good response to the drugs participating in bile acid metabolism, such as ursodeoxycholic acid. Studies have shown that the bicarbonate secretion of biliary epithelial cells is impaired in PBC patients, and bile acid not blocked by HCO3- umbrella enters biliary epithelial cells and mediates their damage and apoptosis, leading to the expression of autoantibodies in apoptotic cells and immunologic injury. In order to explore the role of HCO3- umbrella secreted by biliary epithelial cells in the pathogenesis of PBC, this article briefly introduces the physiological function and production mechanism of HCO3- umbrella and the influencing factors for HCO3- secretion, and it is pointed out that reduced HCO3- secretion may be a key link in the pathogenesis of PBC and a potential therapeutic target.

     

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