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Mohammed MM, Okasha AMM, Naiem AHA, Mohamed RF, Abdelwahab SF, Mohamed HA. Cyclosporine Ameliorates Silica-Induced Autoimmune Hepatitis in Rat Model by Altering the Expression of Toll-Like Receptor-4, Interleukin-2, and Tumor Necrosis Factor-α. Curr Mol Med 2023; 23:87-95. [PMID: 34994326 DOI: 10.2174/1566524022666220106154111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/18/2021] [Accepted: 11/25/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Autoimmune hepatitis (AIH) is an inflammatory liver disease that is characterized histologically by interface hepatitis, biochemically by elevated transaminase levels, and serologically by the presence of autoantibodies. Toll-like receptor (TLR)-4 is a TLR family member that, upon activation in hepatocytes, initiates a cascade of events. Interleukin-2 (IL-2) and tumour necrosis factor α (TNF-α) are potent inflammatory cytokines secreted in AIH, playing an important role in the early development of inflammation and hepatocyte damage. OBJECTIVES This study examined the role of cyclosporine in AIH and illustrated its actions on altered hepatic function in the silica-induced AIH model. METHODS AIH was induced in Wistar rats using sodium silicate. The rats were divided into four groups: the control group, silica-AIH group, cyclosporine-treated group, and prevention group. TLR-4 and IL-2 mRNA expressions in liver tissues were tested by RTPCR. RESULTS AIH was associated with up-regulation of liver enzymes, IL-2 and TLR-4 gene expression, while cyclosporine significantly down-regulated the expression of both. The relative quantity of TLR-4 mRNA was 1±0, 13.57±1.91, 4±0.38, and 2±0 in control, AIH, cyclosporine, and prevention groups, respectively (p<0.001). Also, the relative quantity of IL-2 mRNA was 1±0, 14.79±1.42, 7.07±0.96, and 3.4±0.55 in control, AIH, cyclosporine, and prevention groups, respectively (p<0.001). Additionally, immunohistochemical staining for TNF-α in liver sections was increased in the silica-AIH group but was found to decrease in the cyclosporine-treated and prevention groups. CONCLUSION This study advocates the therapeutic role of cyclosporine in treating immune-mediated hepatic diseases. Cyclosporine improves histological alterations in the liver and inhibits the production of proinflammatory cytokines.
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Affiliation(s)
| | - Ahmed M M Okasha
- Departments of Biochemistry, Minia University Minia 61511, Egypt
| | | | - Reham F Mohamed
- Pathology, Faculty of Medicine, Minia University Minia 61511, Egypt
| | - Sayed F Abdelwahab
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Taif University, Al-Haweiah, PO Box 11099, Taif 21944, Saudi Arabia
| | - Hatem A Mohamed
- Departments of Biochemistry, Minia University Minia 61511, Egypt
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Tsai YS, Huang CI, Tsai PC, Yeh ML, Huang CF, Hsieh MH, Liu TW, Lin YH, Liang PC, Lin ZY, Chen SC, Huang JF, Chuang WL, Dai CY, Yu ML. Circulating Let-7 Family Members as Non-Invasive Biomarkers for Predicting Hepatocellular Carcinoma Risk after Antiviral Treatment among Chronic Hepatitis C Patients. Cancers (Basel) 2022; 14:2023. [PMID: 35454929 PMCID: PMC9030777 DOI: 10.3390/cancers14082023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/26/2022] [Accepted: 04/14/2022] [Indexed: 02/01/2023] Open
Abstract
HCC, a leading cause of cancer-related mortality, is diagnosed at advanced stages. Although antiviral therapy has reduced the risk of HCC among chronic hepatitis C (CHC) patients, the risk of HCC remains, thus, highlighting the unmet need for continuous surveillance. Therefore, stable and cost-effective biomarkers, such as circulating microRNAs, must be identified. We aimed to clarify whether serum levels of the Let-7 family can predict HCC risk in patients with CHC using univariate and multivariate Cox’s proportional hazards model. We analyzed the sera of 54 patients with CHC who developed HCC after antiviral therapy and compared the data with those of 173 patients without HCC development. The Let-7 family (except for let-7c) exhibited significant negative correlations with the fibrosis score (r = −0.2736 to −0.34, p = 0.0002 to <0.0001). After Cox’s regression model was used to adjust for age, sex, HCV genotype, and FIB-4 ≥ 3.25, patients with CHC with let-7i median ≥ −1.696 (adjusted hazard ratio [aHR] = 0.31, 95% CI: 0.08−0.94, p = 0.0372) in the sustained virologic response (SVR) groups and ≥−1.696 (aHR = 0.09, 95% CI: 0.08−0.94, p = 0.0022) in the non-SVR group were less likely to develop HCC. Thus, circulating let-7i can be used for early CHC surveillance in patients with HCC risk after antiviral treatment.
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Affiliation(s)
- Yi-Shan Tsai
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Ching-I Huang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Pei-Chien Tsai
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Ming-Lun Yeh
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Chung-Feng Huang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Meng-Hsuan Hsieh
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Ta-Wei Liu
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Yi-Hung Lin
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Po-Cheng Liang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
| | - Zu-Yau Lin
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Shinn-Cherng Chen
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jee-Fu Huang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Chia-Yen Dai
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
| | - Ming-Lung Yu
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (Y.-S.T.); (C.-I.H.); (P.-C.T.); (M.-L.Y.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (C.-Y.D.)
- Faculty of Internal Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Tsai YS, Yeh ML, Tsai PC, Huang CI, Huang CF, Hsieh MH, Liu TW, Lin YH, Liang PC, Lin ZY, Chen SC, Huang JF, Chuang WL, Dai CY, Yu ML. Clusters of Circulating let-7 Family Tumor Suppressors Are Associated with Clinical Characteristics of Chronic Hepatitis C. Int J Mol Sci 2020; 21:4945. [PMID: 32668728 PMCID: PMC7404305 DOI: 10.3390/ijms21144945] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 01/14/2023] Open
Abstract
Hepatitis C virus (HCV) infections can cause permanent liver-related diseases, including hepatocellular carcinoma (HCC). Low mortality and incidence of HCC have been observed in patients with chronic hepatitis C undergoing direct-acting antiviral therapy. Tumor suppressive let-7 family members are down-regulated in HCC. The present study, therefore, aimed to investigate whether expression levels for the full spectrum of let-7 family members (let-7a, 7b, 7c, 7d, 7e, 7f, 7g, 7i, and miR-98) in the circulatory system are useful as surveillance biomarkers for liver-related diseases to monitor treatment efficacy during HCV infection. To this end, we measured the levels of mature circulating let-7 family members using quantitative reverse transcription-PCR in 236 patients with HCV infection, and 147 age- and sex-matched controls. Using hierarchical cluster analysis and principal component analysis, three clusters were obtained after measuring expression levels of let-7 family members in the patients and controls. Cluster 1 included let-7a/d/e/g, Cluster 2 comprised let-7b and let-7i, and Cluster 3 comprised let-7c/f/miR-98. Let-7b/c/g represented the three clusters and showed the best survival response to liver cancer when analyzed with respect to patient data. Therefore, considering the circulating levels of let7 b/c/g as representatives of the let-7 family may facilitate effective monitoring of liver-related disease.
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Affiliation(s)
- Yi-Shan Tsai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
| | - Ming-Lun Yeh
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Pei-Chien Tsai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ching-I Huang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
| | - Chung-Feng Huang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Internal Medicine, College of Medicine, Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Hsuan Hsieh
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Internal Medicine, College of Medicine, Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Ta-Wei Liu
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
| | - Yi-Hung Lin
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
| | - Po-Cheng Liang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
| | - Zu-Yau Lin
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Shinn-Cherng Chen
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jee-Fu Huang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Wan-Long Chuang
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Lipid Science and Aging Research Center (LSARC), Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chia-Yen Dai
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Internal Medicine, College of Medicine, Graduate Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Lipid Science and Aging Research Center (LSARC), Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biological Science and Technology, College of Biological Science and Technology, National Chiao Tung University, Hsin-Chu 300, Taiwan
| | - Ming-Lung Yu
- Hepatobiliary Division, Department of Internal Medicine and Hepatitis Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-S.T.); (M.-L.Y.); (P.-C.T.); (C.-I.H.); (C.-F.H.); (M.-H.H.); (T.-W.L.); (Y.-H.L.); (P.-C.L.); (Z.-Y.L.); (S.-C.C.); (J.-F.H.); (W.-L.C.); (M.-L.Y.)
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Occupational Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Lipid Science and Aging Research Center (LSARC), Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Wright WF, Palisoc K, Pinto CN, Lease JA, Baghli S. Hepatitis C Virus-Associated Acalculous Cholecystitis and Review of the Literature. Clin Med Res 2020; 18:33-36. [PMID: 31511241 PMCID: PMC7153799 DOI: 10.3121/cmr.2019.1499] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022]
Abstract
Acute acalculous cholecystitis (AAC) is an infrequently encountered clinical condition associated with high morbidity and mortality. Viral infection associated AAC is rare, but it is most commonly associated with Epstein-Barr virus, cytomegalovirus, dengue virus, hepatitis A, hepatitis B, human immunodeficiency virus, disseminated visceral varicella-zoster virus infection, Zika virus, and hepatitis C. We report on a patient who was first diagnosed with a chronic hepatic C infection and subsequently with acalculous cholecystitis.
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Affiliation(s)
- William F Wright
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical Center - Pinnacle, Harrisburg, Pennsylvania
| | - Kathryn Palisoc
- Division of Hospital Medicine, Department of Medicine, University of Pittsburgh Medical Center - Memorial, York, Pennsylvania
| | - Casey N Pinto
- Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical Center - Pinnacle, Harrisburg, Pennsylvania; and Department of Public Health Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - James A Lease
- Department of Pathology and Laboratory Medicine, University of Pittsburgh Medical Center - Memorial, York, Pennsylvania
| | - Salim Baghli
- Division of Hospital Medicine, Department of Medicine, University of Pittsburgh Medical Center - Memorial, York, Pennsylvania
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5
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de Souza Pires-Neto O, da Silva Graça Amoras E, Queiroz MAF, Demachki S, da Silva Conde SR, Ishak R, Cayres-Vallinoto IMV, Vallinoto ACR. Hepatic TLR4, MBL and CRP gene expression levels are associated with chronic hepatitis C. INFECTION GENETICS AND EVOLUTION 2020; 80:104200. [PMID: 31962161 DOI: 10.1016/j.meegid.2020.104200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/13/2020] [Accepted: 01/17/2020] [Indexed: 01/22/2023]
Abstract
Contact with HCV triggers the activation of innate mechanisms responsible for initial infection control. Host cells expressed extra- or intracellularly molecules that promote recognition of pathogen-associated molecular patterns (PAMPs). Toll-like receptor 4 (TLR4), mannose-binding lectin (MBL) and C-reactive protein (CRP) are molecules available for HCV PAMP recognition. The present study evaluated TLR4, MBL and CRP gene expression in the hepatic tissue of chronic HCV carriers (n = 22) and the association of that expression with the pathogenesis of HCV as well as the progression of liver fibrosis. Liver biopsy specimens from the HCV group were divided according to the METAVIR classification: without fibrosis and/or mild fibrosis (F0-F1), moderate fibrosis (F2), and severe fibrosis and/or cirrhosis (F3-F4) and A0-A1 (absent or mild inflammation) and A2 (moderate inflammation); normal liver samples were used as a control (n = 8). The mRNA levels of the genes studied were quantified by real-time PCR, and plasma CRP and liver enzymes were measured using an automated system. CRP and MBL expression was significantly lower in the HCV group compared to that in the control group (p < .0001 and p = .0242, respectively). TLR4 expression was higher in the HCV group than in the control group (p = .0448) and was also significantly higher (p = .0314) with lower levels of necroinflammatory activity (A0-A1), with a significant correlation between the expression of MBL with TLR4 as well as a positive correlation between plasma levels and CRP expression in the HCV group (p = .0431). Hepatic TLR4, MBL and CRP expression showed no significant association with liver enzymes nor plasma viral load. Mechanisms of HCV escape seem to influence hepatic TLR4, MBL and CRP expression, resulting in a change in the transcription profile of these proteins of innate immunity, which may contribute to virus persistence, liver fibrogenesis and loss of normal liver function.
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Affiliation(s)
- Orlando de Souza Pires-Neto
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Guamá, 66075-110 Belém, Pará, Brazil
| | | | - Maria Alice Freitas Queiroz
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Guamá, 66075-110 Belém, Pará, Brazil
| | - Sâmia Demachki
- School of Medicine, Health Science Institute, Federal University of Pará, Umarizal, 66050 Belém, Pará, Brazil
| | | | - Ricardo Ishak
- Virology Laboratory, Biological Science Institute, Federal University of Pará, Guamá, 66075-110 Belém, Pará, Brazil
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6
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Nagamatsu A, Kawaguchi T, Hirota K, Koya S, Tomita M, Hashida R, Kida Y, Narao H, Manako Y, Tanaka D, Koga N, Nakano D, Niizeki T, Matsuse H, Torimura T, Shiba N. Slow walking speed overlapped with low handgrip strength in chronic liver disease patients with hepatocellular carcinoma. Hepatol Res 2019; 49:1427-1440. [PMID: 31273895 DOI: 10.1111/hepr.13405] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 06/17/2019] [Accepted: 07/01/2019] [Indexed: 12/14/2022]
Abstract
AIM Walking speed and grip strength are parameters of muscle function; however, evaluating walking speed is not always available in clinical practice. We aimed to investigate the impact of walking speed on the evaluation of muscle dysfunction in chronic liver disease (CLD) patients with hepatocellular carcinoma (HCC). METHODS We enrolled 107 consecutive CLD patients with HCC in this study (age 76 years [range 60-92 years]; female/male 39/68; body mass index 22.9 [range 20.0-25.3]; chronic hepatitis/liver cirrhosis 25/82). Muscle dysfunction was evaluated using the Asian Working Group for Sarcopenia criteria (grip strength or walking speed) and the Japan Society of Hepatology criteria (grip strength). A correlation between walking speed and skeletal muscle index was evaluated. Independent factors for slow walking speed were evaluated using a logistic regression analysis. RESULTS There was no significant correlation between walking speed and skeletal muscle index (r = 0.14, P = 0.16). For both the Asian Working Group for Sarcopenia and Japan Society of Hepatology criteria, 33.6% of all patients were classified as having muscle dysfunction. All patients with slow walking speed (4.7% of all patients) also showed low handgrip strength. The logistic regression analysis identified grip strength as an independent factor for slow walking speed (OR 0.65; 95% CI 0.432-0.838; P = 0.008). CONCLUSIONS No difference was seen in the prevalence of muscle dysfunction between the Asian Working Group for Sarcopenia and Japan Society of Hepatology criteria in CLD patients with HCC. Furthermore, all patients with slow walking speed also showed low handgrip strength. Thus, for the evaluation of muscle dysfunction, grip strength might be a suitable proxy for walking speed in CLD patients with HCC.
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Affiliation(s)
- Ayu Nagamatsu
- Division of Nutrition, Kurume University Hospital, Kurume, Japan
| | - Takumi Kawaguchi
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Keisuke Hirota
- Division of Rehabilitation, Kurume University Hospital, Kurume, Japan
| | - Shunji Koya
- Division of Rehabilitation, Kurume University Hospital, Kurume, Japan
| | - Manabu Tomita
- Department of Rehabilitation, Saga Central Hospital, Saga, Japan
| | - Ryuki Hashida
- Division of Rehabilitation, Kurume University Hospital, Kurume, Japan.,Department of Orthopedics, Kurume University School of Medicine, Kurume, Japan
| | - Yohei Kida
- Department of Gastroenterology, Kainan Iryou Center, Kainan, Japan
| | - Hayato Narao
- Division of Rehabilitation, Yame General Hospital, Yame, Japan
| | - Yuta Manako
- Division of Rehabilitation, Yame General Hospital, Yame, Japan
| | - Daisuke Tanaka
- Division of Rehabilitation, Chikugo City Hospital, Chikugo, Japan
| | - Noboru Koga
- Division of Rehabilitation, Chikugo City Hospital, Chikugo, Japan
| | - Dan Nakano
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Takashi Niizeki
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Hiroo Matsuse
- Division of Rehabilitation, Kurume University Hospital, Kurume, Japan.,Department of Orthopedics, Kurume University School of Medicine, Kurume, Japan
| | - Takuji Torimura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Naoto Shiba
- Division of Rehabilitation, Kurume University Hospital, Kurume, Japan.,Department of Orthopedics, Kurume University School of Medicine, Kurume, Japan
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7
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Immune response involved in liver damage and the activation of hepatic progenitor cells during liver tumorigenesis. Cell Immunol 2018; 326:52-59. [DOI: 10.1016/j.cellimm.2017.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 08/02/2017] [Accepted: 08/04/2017] [Indexed: 02/07/2023]
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8
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Vespasiani-Gentilucci U, Gallo P, Picardi A. The role of intestinal microbiota in the pathogenesis of NAFLD: starting points for intervention. Arch Med Sci 2018; 14:701-706. [PMID: 29765460 PMCID: PMC5949899 DOI: 10.5114/aoms.2016.58831] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/05/2016] [Indexed: 12/21/2022] Open
Abstract
In recent years, close links between intestinal microbiota and host metabolism have been recognized. Intestinal bacteria can participate in the extraction of calories from food, and circulation of bacterial products, in particular lipopolysaccharides (LPS), is responsible for the "metabolic endotoxemia", which contributes to insulin resistance and its complications, such as non-alcoholic fatty liver disease (NAFLD). Indeed, qualitative and quantitative intestinal dysbiotic changes have been clearly documented in NAFLD patients, and several mechanisms by which the intestinal microbiota can directly promote liver fat deposition, inflammation and fibrosis have also been described. Consistently, although with some differences concerning type and proportion of results, experimental and clinical studies are quite concordant in demonstrating beneficial effects of probiotic and/or prebiotic therapy in NAFLD. Although some physiopathological bases have been produced, major doubts still remain concerning how and when to intervene. Indeed, most of the available works were performed with mixtures of probiotics and/or prebiotics, and a baseline assessment of dysbiosis aimed at selecting the best candidates for treatment and predicting response has not been performed in any of the clinical studies in NAFLD. While future research is expected to solve these issues, the particularly favorable safety profile suggests that probiotic/prebiotic therapy could already be "tested" in NAFLD patients on an individual basis, at least once all the measures recommended by the latest guidelines have failed.
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Affiliation(s)
| | - Paolo Gallo
- Department of Medicine, Unit of Internal Medicine and Hepatology, University Campus Bio-Medico, Rome, Italy
| | - Antonio Picardi
- Department of Medicine, Unit of Internal Medicine and Hepatology, University Campus Bio-Medico, Rome, Italy
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9
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Marlini M, Mabuchi A, Mallard BL, Hairulhisyam N, Akashi-Takamura S, Harper JL, Wheatley AM. Delayed liver regeneration in C3H/HeJ mice: possible involvement of haemodynamic and structural changes in the hepatic microcirculation. Exp Physiol 2018; 101:1492-1505. [PMID: 27634415 DOI: 10.1113/ep085727] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 09/09/2016] [Indexed: 12/16/2022]
Abstract
NEW FINDINGS What is the central question of this study? The liver regenerative process is complex and involves a sequence of signalling events, but the possible involvement of structural and haemodynamic changes in vivo during this process has never been explored. What is the main finding and its importance? Normal sinusoidal blood flow and velocity are crucial for a normal regenerative response, and delays in these haemodynamic events resulted in impaired liver regeneration in lipopolysaccharide-insensitive, C3H/HeJ mice. Toll-like receptor 4 signalling is required for restoration of normal liver architecture during the liver regenerative process. Liver regeneration is delayed in mice with a defective Toll-like receptor 4 (TLR4; C3H/HeJ mice) but is normal in TLR4 knockouts (TLR4-/- ). Here, we investigated the possible involvement of structural and haemodynamic changes in vivo in the underlying mechanism. In lipopolysaccharide-sensitive (C3H/HeN and C57BL/6) and lipopolysaccharide-insensitive (C3H/HeJ and TLR4-/- ) mice, a 70% partial hepatectomy (PH) was performed under inhalational anaesthesia. At days 3 and 7 after PH, the hepatic microcirculation was interrogated using intravital microscopy. Delayed liver regeneration was confirmed in C3H/HeJ, but not in C3H/HeN, C57BL/6 (WT) or TLR4-/- mice by liver weight-to-body-weight ratio, the percentage of proliferating cell nuclear antigen (PCNA)-positive cells and mitotic index data. At day 3 after PH, sinusoidal red blood cell velocity increased by 100% in C3H/HeN mice, but by only 40% in C3H/HeJ mice. Estimated sinusoidal blood flow was significantly higher at day 7 after PH in C3H/HeN than in C3H/HeJ mice. The hepatic cord width was significantly larger in C3H/HeN than in C3H/HeJ mice at day 3 and it was significantly larger in TLR4-/- than in C57BL/6 WT mice at day 7 after PH. Hepatocyte nucleus density and functional sinusoidal density was significantly reduced at days 3 and 7 after PH in all mouse strains compared with their zero-time controls. Functional sinusoidal density was significantly lower in C3H/HeJ compared with C3H/HeN mice at day 7 after PH. The present study indicates that altered sinusoidal blood flow and velocity in C3H/HeJ mice may contribute to the observed delay in the regenerative response in these mice. In addition, restoration of normal liver architecture may be delayed in TLR4-/- mice.
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Affiliation(s)
- Muhamad Marlini
- Physiology, School of Medicine, National University of Ireland Galway, Galway, Ireland.,Department of Physiology, University of Otago, Dunedin, New Zealand.,Medical Faculty, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia
| | - Ayako Mabuchi
- Department of Physiology, University of Otago, Dunedin, New Zealand
| | - Beth L Mallard
- Physiology, School of Medicine, National University of Ireland Galway, Galway, Ireland.,Department of Physiology, University of Otago, Dunedin, New Zealand
| | - Ngatiman Hairulhisyam
- Physiology, School of Medicine, National University of Ireland Galway, Galway, Ireland.,Medical Faculty, Universiti Sains Islam Malaysia, Kuala Lumpur, Malaysia
| | | | | | - Antony M Wheatley
- Physiology, School of Medicine, National University of Ireland Galway, Galway, Ireland.,Department of Physiology, University of Otago, Dunedin, New Zealand
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10
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Macnaughtan J, Jalan R. Editorial: proton pump inhibitor therapy and liver disease progression-more cause for concern? Aliment Pharmacol Ther 2018; 47:304-305. [PMID: 29265457 DOI: 10.1111/apt.14431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
Affiliation(s)
- J Macnaughtan
- UCL Institute for Liver and Digestive Health, Royal Free Medical School, London, UK
| | - R Jalan
- UCL Institute for Liver and Digestive Health, Royal Free Medical School, London, UK
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11
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Carotti S, Perrone G, Amato M, Vespasiani Gentilucci U, Righi D, Francesconi M, Pellegrini C, Zalfa F, Zingariello M, Picardi A, Onetti Muda A, Morini S. Reelin expression in human liver of patients with chronic hepatitis C infection. Eur J Histochem 2017; 61:2745. [PMID: 28348420 PMCID: PMC5365015 DOI: 10.4081/ejh.2017.2745] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/31/2017] [Accepted: 02/01/2017] [Indexed: 02/08/2023] Open
Abstract
Reelin is a secreted extracellular glycoprotein that plays a critical role during brain development. Several studies have described Reelin expression in hepatic stellate cells of the human liver. In order to investigate the possible role of Reelin in the process of hepatic fibrogenesis, in this study we investigated Reelin expression in the liver tissue of patients infected with the Hepatitis C Virus (HCV). On this basis, Reelin expression was analysed by immunohistochemistry during liver biopsies of 81 patients with HCV-related chronic hepatitis. A Knodell score was used to stage liver fibrosis. Hepatic stellate cells/myofibroblast immunohistochemical markers (CRBP-1, alpha-SMA) were also evaluated. As further confirmed by co-localization experiments (Reelin +CRBP-1), Reelin protein was expressed by hepatic stellate cells/myofibroblasts, and a significant positive correlation was found between Reelin expression and the stage of liver fibrosis (P=0.002). Moreover, Reelin correlated with CRBP-1 positive cells (P=0.002), but not with alpha-SMA, suggesting that Reelin should not be regarded as a marker of hepatic stellate cells/myofibroblasts differentiation but rather as a functional protein expressed during some phases of liver fibrosis. Furthermore, Disabled-1 (Dab1), a Reelin adaptor protein, was expressed in cells of ductular reaction suggesting a paracrine role for Reelin with regards these elements. In conclusion, Reelin was expressed by human hepatic stellate cells/myofibroblasts and the number of these cells increased significantly in the lobule as the liver fibrosis progressed, suggesting a role for Reelin in the activation of hepatic stellate cells/myofibroblasts during liver injury. Reelin may potentially be incorporated into liver injury evaluations in combination with other histological data.
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Affiliation(s)
- Simone Carotti
- Campus Bio-Medico University, Laboratory of Microscopic and Ultrastructural Anatomy.
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12
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Alhmada Y, Selimovic D, Murad F, Hassan SL, Haikel Y, Megahed M, Hannig M, Hassan M. Hepatitis C virus-associated pruritus: Etiopathogenesis and therapeutic strategies. World J Gastroenterol 2017; 23:743-750. [PMID: 28223719 PMCID: PMC5296191 DOI: 10.3748/wjg.v23.i5.743] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 11/17/2016] [Accepted: 12/08/2016] [Indexed: 02/06/2023] Open
Abstract
In addition to its contributing role in the development of chronic liver diseases, chronic hepatitis C virus (HCV) infection is associated with extrahepatic manifestations, particularly, cutaneous-based disorders including those with pruritus as a symptom. Pruritus is frequently associated with the development of chronic liver diseases such as cholestasis and chronic viral infection, and the accumulation of bile acids in patients’ sera and tissues as a consequence of liver damage is considered the main cause of pruritus. In addition to their role in dietary lipid absorption, bile acids can trigger the activation of specific receptors, such as the G protein-coupled bile acid receptor (GPBA/ TGR5). These types of receptors are known to play a crucial role in the modulation of the systemic actions of bile acids. TGR5 expression in primary sensory neurons triggers the activation of the transient receptor potential vanilloid 1 (TRPV1) leading to the induction of pruritus by an unknown mechanism. Although the pathologic phenomenon of pruritus is common, there is no uniformly effective therapy available. Understanding the mechanisms regulating the occurrence of pruritus together with the conduction of large-scale clinical and evidence-based studies, may help to create a standard treatment protocol. This review focuses on the etiopathogenesis and treatment strategies of pruritus associated with chronic HCV infection.
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13
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Della Corte C, Carpino G, De Vito R, De Stefanis C, Alisi A, Cianfarani S, Overi D, Mosca A, Stronati L, Cucchiara S, Raponi M, Gaudio E, Byrne CD, Nobili V. Docosahexanoic Acid Plus Vitamin D Treatment Improves Features of NAFLD in Children with Serum Vitamin D Deficiency: Results from a Single Centre Trial. PLoS One 2016; 11:e0168216. [PMID: 27977757 PMCID: PMC5158039 DOI: 10.1371/journal.pone.0168216] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/23/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND There are no licensed treatments for non alcoholic fatty liver disease (NAFLD) in adults or children. In NAFLD, several studies have shown a benefit of omega-3 fatty acid treatment on lipid profile, insulin-sensitivity and hepatic steatosis and it has also been suggested that Vitamin D treatment has potential antifibrotic properties in liver disease. TRIAL DESIGN To date, however, there are no studies that have tested the combination of Docosahexanoic acid (DHA) and vitamin D treatment which may benefit the whole spectrum of disease in NAFLD. Our aim therefore, was to test the effect of daily DHA (500 mg) plus vitamin D (800 IU) treatment, in obese children with biopsy-proven NAFLD and vitamin D deficiency, in a randomized, double-blind placebo-controlled trial. METHODS The 41/43 patients completed the study (18-treatment, 23-placebo). At 12 months: i) the main outcome was liver histology improvement, defined by NAS; ii) the secondary outcome was amelioration of metabolic parameters. RESULTS DHA plus vitamin D treatment reduced the NAFLD Activity Score (NAS), in the treatment group (5.4 v1.92; p<0.001 for baseline versus end of study). There was no change in fibrosis score, but a reduction of the activation of hepatic stellate cells (HSC) and fibrillar collagen content was noted (3.51±1.66 v. 1.59±1.37; p = 0.003) in treatment group. Moreover, the triglycerides (174.5 vs. 102.15 mg/dl), ALT (40.25 vs. 24.5 UI/l) and HOMA-IR (4.59 vs. 3.42) were all decreased with treatment. CONCLUSION DHA plus vitamin D treatment improved insulin-resistance, lipid profile, ALT and NAS. There was also decreased HSC activation and collagen content with treatment.
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Affiliation(s)
- Claudia Della Corte
- Hepato-Metabolic Department, “Bambino Gesù” Children’s Hospital, IRCCS–Rome, Italy
| | - Guido Carpino
- Department of Movement, Human and Health Sciences, Division of Health Sciences, University of Rome "Foro Italico"- Rome, Italy
| | - Rita De Vito
- Histopathology Unit, “Bambino Gesù” Children’s Hospital, IRCCS- Rome, Italy
| | | | - Anna Alisi
- Liver Research Unit, “Bambino Gesù” Children’s Hospital, IRCCS–Rome, Italy
| | - Stefano Cianfarani
- Endocrinology and Diabetes Unit, "Bambino Gesù" Children's Hospital, IRCCS—Rome, Italy
| | - Diletta Overi
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome—Rome, Italy
| | - Antonella Mosca
- Hepato-Metabolic Department, “Bambino Gesù” Children’s Hospital, IRCCS–Rome, Italy
| | - Laura Stronati
- Department of Cellular Biotechnology and Hematology, Sapienza University Hospital Umberto I, Rome, Italy
| | - Salvatore Cucchiara
- Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Sapienza University Hospital Umberto I, Rome, Italy
| | | | - Eugenio Gaudio
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome—Rome, Italy
| | - Christopher D. Byrne
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton-, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Valerio Nobili
- Hepato-Metabolic Department, “Bambino Gesù” Children’s Hospital, IRCCS–Rome, Italy
- Liver Research Unit, “Bambino Gesù” Children’s Hospital, IRCCS–Rome, Italy
- * E-mail:
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14
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Peng J, Lin X, Lin H, Chen S, Liu J, Guo Z, Liang Y, Huang S, Lu F. Up-regulated TLR2 and TLR4 expressions in liver and spleen during acute murine T. gondii infection. Parasitol Res 2016; 115:4681-4686. [DOI: 10.1007/s00436-016-5226-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/29/2016] [Indexed: 12/15/2022]
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15
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Lai FB, Liu WT, Jing YY, Yu GF, Han ZP, Yang X, Zeng JX, Zhang HJ, Shi RY, Li XY, Pan XR, Li R, Zhao QD, Wu MC, Zhang P, Liu JF, Wei LX. Lipopolysaccharide supports maintaining the stemness of CD133(+) hepatoma cells through activation of the NF-κB/HIF-1α pathway. Cancer Lett 2016; 378:131-41. [PMID: 27208741 DOI: 10.1016/j.canlet.2016.05.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 04/19/2016] [Accepted: 05/12/2016] [Indexed: 02/07/2023]
Abstract
Due to the existence of cancer stem cells (CSCs), persistence and relapse of human hepatocellular carcinoma (HCC) are common after treatment with existing anti-cancer therapies. Emerging evidence indicates that lipopolysaccharide (LPS) plays a crucial role in aggravating HCC, but information about the effect of LPS on CSCs of HCC remains scant. Here, we report that the stemness of CD133(+) CSCs sorted from the human HCC cell line Huh7 was maintained well when cells were cultured with LPS. The reduction of CD133 expression was much lesser in cultured CSCs in the presence of LPS. In response to LPS stimulation, CSCs showed an increase in their activity of clonogenesis and tumorigenesis. LPS also supported maintaining CSC abilities of migration, invasion, and chemo-resistance. Treatment with HIF-1α-specific siRNA significantly reduced CD133 expression by CSCs at both mRNA and protein levels. Further, the expression of HIF-1α and CD133 was reduced in LPS-stimulated CSCs when the NF-κB inhibitor was added to the cell culture. HIF-1α-specific siRNA also effectively counteracted the effect of LPS on maintaining CSC abilities of migration and invasion. These data indicate that LPS, an important mediator in the liver tumor microenvironment, supports the maintenance of CSC stemness through signaling of the NF-κB/HIF-1α pathway. Our current study highlights LPS as a potential target for developing new therapeutic approaches to eliminate CSCs during the treatment of HCC.
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Affiliation(s)
- Fo-Bao Lai
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China; Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China
| | - Wen-Ting Liu
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Ying-Ying Jing
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Guo-Feng Yu
- Oncology Department, Ji'an Hospital, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhi-Peng Han
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Xue Yang
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Jian-Xing Zeng
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Hang-Jie Zhang
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Rong-Yu Shi
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Xiao-Yong Li
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Xiao-Rong Pan
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Rong Li
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Qiu-Dong Zhao
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Meng-Chao Wu
- Department of Comprehensive Treatment, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China
| | - Ping Zhang
- Department of Integrative Medical Sciences, College of Medicine, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Jing-Feng Liu
- Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou, China.
| | - Li-Xin Wei
- Tumor Immunology and Gene Therapy Center, Eastern Hepatobiliary Surgery Hospital, The Second Military Medical University, Shanghai, China.
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17
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Carotti S, Guarino MPL, Vespasiani-Gentilucci U, Morini S. Starring role of toll-like receptor-4 activation in the gut-liver axis. World J Gastrointest Pathophysiol 2015; 6:99-109. [PMID: 26600967 PMCID: PMC4644892 DOI: 10.4291/wjgp.v6.i4.99] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 07/21/2015] [Accepted: 10/19/2015] [Indexed: 02/06/2023] Open
Abstract
Since the introduction of the term “gut-liver axis”, many studies have focused on the functional links of intestinal microbiota, barrier function and immune responses to liver physiology. Intestinal and extra-intestinal diseases alter microbiota composition and lead to dysbiosis, which aggravates impaired intestinal barrier function via increased lipopolysaccharide translocation. The subsequent increased passage of gut-derived product from the intestinal lumen to the organ wall and bloodstream affects gut motility and liver biology. The activation of the toll-like receptor 4 (TLR-4) likely plays a key role in both cases. This review analyzed the most recent literature on the gut-liver axis, with a particular focus on the role of TLR-4 activation. Findings that linked liver disease with dysbiosis are evaluated, and links between dysbiosis and alterations of intestinal permeability and motility are discussed. We also examine the mechanisms of translocated gut bacteria and/or the bacterial product activation of liver inflammation and fibrogenesis via activity on different hepatic cell types.
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Carotti S, Vespasiani-Gentilucci U, Perrone G, Picardi A, Morini S. Portal inflammation during NAFLD is frequent and associated with the early phases of putative hepatic progenitor cell activation. J Clin Pathol 2015; 68:883-90. [PMID: 26124313 DOI: 10.1136/jclinpath-2014-202717] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 06/11/2015] [Indexed: 12/19/2022]
Abstract
AIMS We investigated whether portal tract inflammation observed in non-alcoholic fatty liver disease (NAFLD) is associated with hepatic progenitor cell compartment activation, as thoroughly evaluated with different markers of the staminal lineage. METHODS Fifty-two patients with NAFLD were studied. NAFLD activity score, fibrosis and portal inflammation were histologically evaluated. Putative hepatic progenitor cells, intermediate hepatobiliary cells and bile ductules/interlobular bile ducts were evaluated by immunohistochemistry for cytokeratin (CK)-7, CK-19 and epithelial cell adhesion molecule (EpCAM), and a hepatic progenitor cell compartment score was derived. Hepatic stellate cell and myofibroblast activity was determined by immunohistochemistry for α-smooth muscle actin. RESULTS Portal inflammation was absent in a minority of patients, mild in 40% of cases and more than mild in about half of patients, showing a strong correlation with fibrosis (r=0.76, p<0.001). Portal inflammation correlated with CK-7-counted putative hepatic progenitor cells (r=0.48, p<0.001), intermediate hepatobiliary cells (r=0.6, p<0.001) and bile ductules/interlobular bile ducts (r=0.6, p<0.001), and with the activity of myofibroblasts (r=0.5, p<0.001). Correlations were confirmed when elements were counted by immunostaining for CK-19 and EpCAM. Lobular inflammation, ballooning, myofibroblast activity and hepatic progenitor cell compartment activation were associated with portal inflammation by univariate analysis. In the multivariate model, the only variable independently associated with portal inflammation was hepatic progenitor cell compartment activation (OR 3.7, 95% CI 1.1 to 12.6). CONCLUSIONS Portal inflammation is frequent during NAFLD and strongly associated with activation of putative hepatic progenitor cells since the first steps of their differentiation, portal myofibroblast activity and fibrosis.
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Affiliation(s)
- Simone Carotti
- Laboratory of Microscopic and Ultrastructural Anatomy, CIR, University Campus Bio-Medico of Rome, Rome, Italy
| | | | - Giuseppe Perrone
- Department of Anatomical Pathology, University Campus Bio-Medico of Rome, Rome, Italy
| | - Antonio Picardi
- Clinical Medicine and Hepatology Unit, University Campus Bio-Medico of Rome, Rome, Italy
| | - Sergio Morini
- Laboratory of Microscopic and Ultrastructural Anatomy, CIR, University Campus Bio-Medico of Rome, Rome, Italy
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Vespasiani-Gentilucci U, Carotti S, Perrone G, Mazzarelli C, Galati G, Onetti-Muda A, Picardi A, Morini S. Hepatic toll-like receptor 4 expression is associated with portal inflammation and fibrosis in patients with NAFLD. Liver Int 2015; 35:569-81. [PMID: 24649857 DOI: 10.1111/liv.12531] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 03/09/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Notwithstanding evidences implicating the lipopolysaccharides (LPS)/toll-like receptor-4 (TLR4) axis in the pathogenesis of NAFLD, there are no studies aimed to characterize hepatic TLR4 expression in NAFLD patients. We aimed to analyse hepatic TLR4 expression and to verify its relationship with disease activity/evolution in NAFLD patients. METHODS Liver tissue from 74 patients with NAFLD and 12 controls was analysed by immunohistochemistry (IHC) for TLR4, α-smooth muscle actin (α-SMA) and cytokeratin-7. IHC for α-SMA was used to evaluate activation of fibrogenic cells (hepatic stellate cells and portal/septal myofibroblasts), that for cytokeratin-7 to count hepatic progenitor cells and bile ducts/ductules, and that for CD68, in a subgroup of 27 patients, for detecting macrophages. Serum LPS-binding protein (LBP), a sensitive marker of LPS activity, was determined in 36 patients and 32 controls. RESULTS As confirmed by double-labelling experiments, the highest level of TLR4 expression was observed in hepatic progenitor cells, biliary cells and portal/septal macrophages. TLR4-positive hepatic progenitor cells and bile ducts/ductules correlated with portal/interface inflammation, activity of fibrogenic cells and fibrosis (P < 0.001). Also the score of TLR4 positivity of porto-septal inflammatory infiltrate correlated with number of hepatic progenitor cells and bile ducts/ductules, activity of fibrogenic cells and fibrosis (P < 0.01). Serum LBP was increased in patients compared to controls (P < 0.001), and correlated with portal/interface inflammation, activity of portal/septal myofibroblasts and fibrosis (all P < 0.05). CONCLUSIONS TLR4 expression by regenerating and inflammatory cells at the porto-septal and interface level, favoured by increased LPS activity, is associated with activation of fibrogenic cells and the degree of fibrosis.
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Choi J, Corder NLB, Koduru B, Wang Y. Oxidative stress and hepatic Nox proteins in chronic hepatitis C and hepatocellular carcinoma. Free Radic Biol Med 2014; 72:267-84. [PMID: 24816297 PMCID: PMC4099059 DOI: 10.1016/j.freeradbiomed.2014.04.020] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 02/08/2023]
Abstract
Hepatocellular carcinoma (HCC) is the most common liver cancer and a leading cause of cancer-related mortality in the world. Hepatitis C virus (HCV) is a major etiologic agent of HCC. A majority of HCV infections lead to chronic infection that can progress to cirrhosis and, eventually, HCC and liver failure. A common pathogenic feature present in HCV infection, and other conditions leading to HCC, is oxidative stress. HCV directly increases superoxide and H2O2 formation in hepatocytes by elevating Nox protein expression and sensitizing mitochondria to reactive oxygen species generation while decreasing glutathione. Nitric oxide synthesis and hepatic iron are also elevated. Furthermore, activation of phagocytic NADPH oxidase (Nox) 2 of host immune cells is likely to exacerbate oxidative stress in HCV-infected patients. Key mechanisms of HCC include genome instability, epigenetic regulation, inflammation with chronic tissue injury and sustained cell proliferation, and modulation of cell growth and death. Oxidative stress, or Nox proteins, plays various roles in these mechanisms. Nox proteins also function in hepatic fibrosis, which commonly precedes HCC, and Nox4 elevation by HCV is mediated by transforming growth factor β. This review summarizes mechanisms of oncogenesis by HCV, highlighting the roles of oxidative stress and hepatic Nox enzymes in HCC.
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Affiliation(s)
- Jinah Choi
- School of Natural Sciences, University of California at Merced, Merced, CA 95343, USA.
| | - Nicole L B Corder
- School of Natural Sciences, University of California at Merced, Merced, CA 95343, USA
| | - Bhargav Koduru
- School of Natural Sciences, University of California at Merced, Merced, CA 95343, USA
| | - Yiyan Wang
- School of Natural Sciences, University of California at Merced, Merced, CA 95343, USA
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Role of hepatic progenitor cells in nonalcoholic fatty liver disease development: cellular cross-talks and molecular networks. Int J Mol Sci 2013; 14:20112-30. [PMID: 24113587 PMCID: PMC3821605 DOI: 10.3390/ijms141020112] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 09/18/2013] [Accepted: 09/18/2013] [Indexed: 12/28/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) includes a spectrum of diseases ranging from simple fatty liver to nonalcoholic steatohepatitis, (NASH) which may progress to cirrhosis and hepatocellular carcinoma. NASH has been independently correlated with atherosclerosis progression and cardiovascular risk. NASH development is characterized by intricate interactions between resident and recruited cells that enable liver damage progression. The increasing general agreement is that the cross-talk between hepatocytes, hepatic stellate cells (HSCs) and macrophages in NAFLD has a main role in the derangement of lipid homeostasis, insulin resistance, danger recognition, immune tolerance response and fibrogenesis. Moreover, several evidences have suggested that hepatic stem/progenitor cell (HPCs) activation is a component of the adaptive response of the liver to oxidative stress in NAFLD. HPC activation determines the appearance of a ductular reaction. In NASH, ductular reaction is independently correlated with progressive portal fibrosis raising the possibility of a periportal fibrogenetic pathway for fibrogenesis that is parallel to the deposition of subsinusoidal collagen in zone 3 by HSCs. Recent evidences indicated that adipokines, a class of circulating factors, have a key role in the cross-talk among HSCs, HPCs and liver macrophages. This review will be focused on cellular cross-talk and the relative molecular networks which are at the base of NASH progression and fibrosis.
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Barchetta I, Carotti S, Labbadia G, Gentilucci UV, Muda AO, Angelico F, Silecchia G, Leonetti F, Fraioli A, Picardi A, Morini S, Cavallo MG. Liver vitamin D receptor, CYP2R1, and CYP27A1 expression: relationship with liver histology and vitamin D3 levels in patients with nonalcoholic steatohepatitis or hepatitis C virus. Hepatology 2012; 56:2180-7. [PMID: 22753133 DOI: 10.1002/hep.25930] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Accepted: 06/03/2012] [Indexed: 12/14/2022]
Abstract
UNLABELLED Evidence suggests an association between low serum 25-hydroxy-vitamin D(3) [25(OH)D(3) ] levels and the presence and prognosis of liver disease. Vitamin D receptor (VDR) has been widely detected in the liver, but its expression in the course of liver disease has never been investigated. We evaluated the hepatic expression of VDR along with that of vitamin D 25-hydroxylases in patients with nonalcoholic steatohepatitis (NASH) or chronic hepatitis C (CHC) and its relationship with hepatic histological features and serum 25(OH)D(3) levels. We evaluated 61 patients (25 NASH and 36 CHC) who had undergone liver biopsy for clinical purposes and 20 subjects without liver disease. Serum 25(OH)D(3) was measured via colorimetric assay. Expression of VDR, CYP2R1, and CYP27A1 was evaluated via immunohistochemistry in hepatocytes, cholangiocytes, and liver inflammatory cells. Parenchymal and inflammatory cells from liver biopsies of patients with NASH and CHC expressed VDR, CYP2R1, and CYP27A1. In NASH patients, VDR expression on cholangiocytes was inversely correlated with steatosis severity (P < 0.02), lobular inflammation (P < 0.01), and nonalcoholic fatty liver disease score (P < 0.03). Moreover, expression of CYP2R1 in hepatocytes correlated strongly with VDR positivity on liver inflammatory cells. In CHC subjects, fibrosis stage was associated with low hepatic CYP27A1 expression, whereas portal inflammation was significantly higher in patients with VDR-negative inflammatory cells (P < 0.009) and low VDR expression in hepatocytes (P < 0.03). CONCLUSION VDR is widely expressed in the liver and inflammatory cells of chronic liver disease patients and its expression is negatively associated with the severity of liver histology in both NASH and CHC patients. These data suggest that vitamin D/VDR system may play a role in the progression of metabolic and viral chronic liver damage. (HEPATOLOGY 2012;56:2180-2187).
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Affiliation(s)
- Ilaria Barchetta
- Department of Internal Medicine and Medical Specialties, Sapienza University of Rome, Rome, Italy
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Choi J. Oxidative stress, endogenous antioxidants, alcohol, and hepatitis C: pathogenic interactions and therapeutic considerations. Free Radic Biol Med 2012; 52:1135-50. [PMID: 22306508 DOI: 10.1016/j.freeradbiomed.2012.01.008] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2011] [Revised: 01/04/2012] [Accepted: 01/12/2012] [Indexed: 12/16/2022]
Abstract
Hepatitis C virus (HCV) is a blood-borne pathogen that was identified as an etiologic agent of non-A, non-B hepatitis in 1989. HCV is estimated to have infected at least 170 million people worldwide. The majority of patients infected with HCV do not clear the virus and become chronically infected, and chronic HCV infection increases the risk for hepatic steatosis, cirrhosis, and hepatocellular carcinoma. HCV induces oxidative/nitrosative stress from multiple sources, including inducible nitric oxide synthase, the mitochondrial electron transport chain, hepatocyte NAD(P)H oxidases, and inflammation, while decreasing glutathione. The cumulative oxidative burden is likely to promote both hepatic and extrahepatic conditions precipitated by HCV through a combination of local and more distal effects of reactive species, and clinical, animal, and in vitro studies strongly point to a role of oxidative/nitrosative stress in HCV-induced pathogenesis. Oxidative stress and hepatopathogenesis induced by HCV are exacerbated by even low doses of alcohol. Alcohol and reactive species may have other effects on hepatitis C patients such as modulation of the host immune system, viral replication, and positive selection of HCV sequence variants that contribute to antiviral resistance. This review summarizes the current understanding of redox interactions of HCV, outlining key experimental findings, directions for future research, and potential applications to therapy.
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Affiliation(s)
- Jinah Choi
- Department of Molecular Cell Biology, School of Natural Sciences, University of California at Merced, Merced, CA 95343, USA.
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