Xenobiotics and autoimmunity: does acetaminophen cause primary biliary cirrhosis?
Xenobiotics and autoimmunity: does acetaminophen cause primary biliary cirrhosis?
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DOI:
10.1016/j.molmed.2012.07.005
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发表时间:
2012-10
影响因子:
13.6
通讯作者:
Gershwin ME
中科院分区:
文献类型:
--
作者:
Leung PS;Lam K;Kurth MJ;Coppel RL;Gershwin ME
The serologic hallmark of primary biliary cirrhosis (PBC) is the presence of antimitochondrial autoantibodies (AMA) directed against the E2 subunit of PDC-E2. The PBC-related autoepitope of PDC-E2 contains lipoic acid, and previous work has demonstrated that mimics of lipoic acid following immunization of mice lead to a PBC-like disease. Furthermore, approximately one third of patients who have ingested excessive amounts of acetaminophen (paracetamol) develop AMA of the same specificity as patients with PBC. Quantitative structure-activity relationship (QSAR) data indicates that acetaminophen metabolites are particularly immunoreactive with AMA, and we submit that in genetically susceptible hosts, electrophilic modification of lipoic acid in PDC-E2 by acetaminophen or similar drugs can facilitate a loss of tolerance and lead to the development of PBC.
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