Liver hepcidin and stainable iron expression in biliary atresia

Ying Hsien Huang, Hui Yu-Hsieh, Chao Cheng Huang, S. Tseng, Ming Hong Tai, Chao Long Chen, Jiin Haur Chuang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Hepcidin is a proposed mammalian host defense peptide that was identified on the basis of its antimicrobial activity, but it was later shown to be a crucial regulator of iron homeostasis and a mediator of the anemia of chronic inflammation. Hepcidin and stainable iron expression in biliary atresia (BA) were investigated in this study. Fresh liver tissues were obtained from 10 patients in the early stage of BA when they underwent Kasai's procedure, 9 in the late stage of BA when they received liver transplantation and 5 controls receiving liver resection for benign lesions other than cholestasis or fibrosis. Real-time quantitative reverse-transcription PCR (QRT-PCR), immunohistochemical staining and ELISA were performed to gauge hepcidin mRNA and protein expression in liver and plasma. Archival liver specimens from patients in the early and late stages of BA were treated with Perls' acid ferrocyanide technique for hepatic stainable iron. The results demonstrated that liver hepcidin mRNA expression was 100-fold lower in late-stage BA than in the early stage by QRT-PCR. Significantly weaker liver hepcidin immunostaining and lower plasma hepcidin levels were found in late-stage BA than in the early stage. There was also significantly lower stainable iron in the liver of late-stage BA. The major site of stainable iron was in Kupffer cells. The results support a role for hepcidin as a key regulator of mammalian iron metabolism and chronic inflammation, whose expression correlates with the degree of stainable iron in BA.

Original languageEnglish
Pages (from-to)662-666
Number of pages5
JournalPediatric Research
Volume59
Issue number5
DOIs
StatePublished - 1 May 2006

Fingerprint Dive into the research topics of 'Liver hepcidin and stainable iron expression in biliary atresia'. Together they form a unique fingerprint.

Cite this