Tomohisa Yoneyama1,2, Takehisa Ueno3, Kazunori Masahata1, Chiyoshi Toyama1, Akira Maeda1, Yuko Tazuke1, Takaharu Oue2, Shuji Miyagawa1, Hiroomi Okuyama1. 1. Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan. 2. Department of Pediatric Surgery, Hyogo College of Medicine, Nishinomiya, Japan. 3. Department of Pediatric Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan. ueno@pedsurg.med.osaka-u.ac.jp.
Abstract
BACKGROUND: MicroRNAs (miRNAs) play an important role in regulating fibrogenesis in the liver. The current study examined the ability of microRNA-214 (miR-214) level in liver and serum samples obtained from patients with BA to predict progressive liver fibrosis in patients with biliary atresia (BA). METHODS: We examined miR-214 level in relation to conventional markers of liver fibrosis, with liver and serum samples from BA patients. Fifty-two patients with BA who underwent Kasai portoenterostomy and four control patients underwent liver biopsy. In 28 patients with BA, blood samples were collected to analyze circulating serum miR-214. RESULTS: MiR-214 levels in liver tissue were significantly upregulated in patients with BA who had severe liver fibrosis (F3-4) compared to those with none to mild fibrosis (F0-2), whereas suppressors-of-fused homolog (Sufu) mRNA levels were significantly suppressed in F3-4. Serum miR-214 levels were significantly higher in patients with F3-4 compared with F0-2. Area under the curve analysis showed that the serum miR-214 cut-off level for predicting F3-4 was 0.805 (p = 0.0046). CONCLUSION: Hepatic overexpression of miR-214 is associated with progression of liver fibrosis in patients with BA, and the circulating miR-214 level may serve as a non-invasive predictor of liver fibrosis.
BACKGROUND: MicroRNAs (miRNAs) play an important role in regulating fibrogenesis in the liver. The current study examined the ability of microRNA-214 (miR-214) level in liver and serum samples obtained from patients with BA to predict progressive liver fibrosis in patients with biliary atresia (BA). METHODS: We examined miR-214 level in relation to conventional markers of liver fibrosis, with liver and serum samples from BA patients. Fifty-two patients with BA who underwent Kasai portoenterostomy and four control patients underwent liver biopsy. In 28 patients with BA, blood samples were collected to analyze circulating serum miR-214. RESULTS: MiR-214 levels in liver tissue were significantly upregulated in patients with BA who had severe liver fibrosis (F3-4) compared to those with none to mild fibrosis (F0-2), whereas suppressors-of-fused homolog (Sufu) mRNA levels were significantly suppressed in F3-4. Serum miR-214 levels were significantly higher in patients with F3-4 compared with F0-2. Area under the curve analysis showed that the serum miR-214 cut-off level for predicting F3-4 was 0.805 (p = 0.0046). CONCLUSION: Hepatic overexpression of miR-214 is associated with progression of liver fibrosis in patients with BA, and the circulating miR-214 level may serve as a non-invasive predictor of liver fibrosis.
Authors: Kevin Fitzgerald; Maria Frank-Kamenetsky; Svetlana Shulga-Morskaya; Abigail Liebow; Brian R Bettencourt; Jessica E Sutherland; Renta M Hutabarat; Valerie A Clausen; Verena Karsten; Jeffrey Cehelsky; Saraswathy V Nochur; Victor Kotelianski; Jay Horton; Timothy Mant; Joseph Chiesa; James Ritter; Malathy Munisamy; Akshay K Vaishnaw; Jared A Gollob; Amy Simon Journal: Lancet Date: 2013-10-03 Impact factor: 79.321