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Eygi E, Gul R, Aslan M, Tas ZA, Dokuyucu R. The Promising Effects of Erdosteine and Vitamin B in the Liver Ischemia/Reperfusion Model in Anesthetized Rats. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:783. [PMID: 38792966 PMCID: PMC11123104 DOI: 10.3390/medicina60050783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024]
Abstract
Background and Objectives: Erdosteine (Erd) is an antioxidant and anti-inflammatory drug. Vitamin B has been reported to exert anti-inflammatory and antioxidant effects. In this study, we investigated the effect of erdosteine and vitamin B complex on a liver ischemia/reperfusion (I/R) model. Materials and Methods: Thirty-two Wistar Albino male rats weighing 350-400 g were used. The animals were randomly selected and divided into four groups. The groups are as follows: first group (Sham), second group (I/R), third group (I/R + vit B), and fourth group (I/R + vit B + Erd). Rats were subjected to 45 min of hepatic ischemia, followed by a 45 min reperfusion period in the I/R and Vitamin B + Erd groups. An amount of 150 mg/kg/day of erdosteine was given orally for 2 days, and 0.05 mL/kg of i.p. vitamin B complex was given 30 min before the reperfusion. Serum biochemical parameters were measured. Serum Total Antioxidant Status (TAS) and Total Oxidant Status (TOS) were measured, and the Oxidative Stress Index (OSI) was calculated. Hepatic tissue samples were taken for the evaluation of histopathological features. Results: In terms of all histopathological parameters, there were significant differences in the I/R + vit B group and I/R + vit B + Erd group compared with the I/R group (p < 0.01). In terms of aspartate aminotransferase (AST), alanine aminotransferase (ALT), lactate dehydrogenase (LDH), TNF-alpha, and IL-6 levels, there were significant differences between the I/R group and treatment groups (p < 0.01). The lowest TOS and OSI levels were obtained in the treatment groups, and these groups had statistically significantly higher TAS levels compared with the sham and I/R groups (p < 0.01). Conclusions: As a preliminary experimental study, our study suggests that these agents may have potential diagnostic and therapeutic implications for both ischemic conditions and liver-related diseases. These results suggest that the combination of vit B + Erd may be used to protect against the devastating effects of I/R injury. Our study needs to be confirmed by clinical studies with large participation.
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Affiliation(s)
- Elif Eygi
- Department of Anesthesiology and Reanimation, Gaziantep City Training and Research Hospital, Gaziantep 27470, Türkiye;
| | - Rauf Gul
- Department of Anesthesiology and Reanimation, School of Medicine, Gaziantep University, Gaziantep 27470, Türkiye;
| | - Murat Aslan
- Department of Anesthesiology and Reanimation, Gaziantep City Training and Research Hospital, Gaziantep 27470, Türkiye;
| | - Zeynel Abidin Tas
- Department of Pathology, Adana City Education and Research Hospital, University of Health Sciences, Adana 01230, Türkiye;
| | - Recep Dokuyucu
- Department of Physiology, Medical Specialization Training Center (TUSMER), Ankara 06230, Türkiye;
- Physioclinic Private Center, Gaziantep 27560, Türkiye
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2
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Ye J, Qiu W, Pang X, Su Y, Zhang X, Huang J, Xie H, Liao J, Tang Z, Chen Z, Li F, Xiong Z, Su R. Polystyrene nanoplastics and cadmium co-exposure aggravated cardiomyocyte damage in mice by regulating PANoptosis pathway. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123713. [PMID: 38462200 DOI: 10.1016/j.envpol.2024.123713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/30/2023] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Micro/nanoplastics (M/NPs) are the novel contaminants ubiquitous in the environment. Cadmium (Cd), a kind of heavy metal pollutant widely distributed, could potentially co-exist with PS-NPs in the environment. However, their combined effects on cardiomyocyte and its molecular mechanism in mammals remained ambiguous. Here, we examined whether PANoptosis, an emerging and complicated kind of programmed cell death, was involved in PS-NPs and Cd co-exposure-elicited cardiac injury. In this study, 60 male mice were orally subjected to environmentally relevant concentrations of PS-NPs (1 mg/kg) and/or CdCl2 (1.5 mg/kg) for 35 days. As we speculated, PS-NPs and Cd co-exposure affected the expression of pyroptosis(Caspase-1, Cleaved-Caspase-1, GSDMD, N-GSDMD, AIM2, Pyrin, NLRP3, IL-18, IL-1β)-, apoptosis(Caspase-3, Cleaved-Caspase-3, Caspase-8, Cleaved-Caspase-8, Caspase-7, BAX)- and necroptosis (t-RIPK3, p-RIPK3, t-RIPK1, p-RIPK1, t-MLKL, p-MLKL, ZBP1)-related genes and protein, resulting in growth restriction and damaged myocardial microstructure in mice. Notably, the combined effects on Cd and PS-NPs even predominantly aggravated the toxic damage. Intriguingly, we fortuitously discovered PS-NPs and/or Cd exposure facilitated linear ubiquitination of certain proteins in mice myocardium. In summation, this study shed light toward the effects of Cd and PS-NPs on cardiotoxicity, advanced the understanding of myocardial PANoptosis and provided a scientific foundation for further exploration of the combined toxicological effects of PS-NPs and heavy metals.
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Affiliation(s)
- Jiali Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Wenyue Qiu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiaoyue Pang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yiman Su
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xinting Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianjia Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Haoming Xie
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianzhao Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zefeng Chen
- Department of Cardiovascular Medicine, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tianhe Road, Tianhe District, Guangzhou City, Guangdong Province, China
| | - Fei Li
- Department of Cardiovascular Medicine, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tianhe Road, Tianhe District, Guangzhou City, Guangdong Province, China
| | - Zhaojun Xiong
- Department of Cardiovascular Medicine, The Third Affiliated Hospital of Sun Yat-sen University, 600 Tianhe Road, Tianhe District, Guangzhou City, Guangdong Province, China
| | - Rongsheng Su
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
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3
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Qin L, Tan J, Lv X, Zhang J. Vanillic acid alleviates liver fibrosis through inhibiting autophagy in hepatic stellate cells via the MIF/CD74 signaling pathway. Biomed Pharmacother 2023; 168:115673. [PMID: 37857251 DOI: 10.1016/j.biopha.2023.115673] [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: 08/10/2023] [Revised: 10/04/2023] [Accepted: 10/06/2023] [Indexed: 10/21/2023] Open
Abstract
MIF/CD74 signaling pathway and autophagy may be closely related to liver fibrosis. Vanillic acid (VA) is likely to have an anti-liver fibrosis effect, although related studies have not been reported. The aim of this study was to verify the role of hepatic stellate cells (HSCs) autophagy and the MIF/CD74 signaling pathway in the pathogenesis of liver fibrosis, and to investigate the effect of VA on liver fibrosis through in vivo and in vitro experiments. Our results showed that VA significantly attenuated CCl4-induced liver fibrosis. The alleviation of liver fibrosis with VA treatment was associated with a reduction of MIF, CD74, α-SMA, LC3B and Collagen 1. In addition, VA, MIF inhibitor (ISO-1) and autophagy inhibitor (3-MA) markedly inhibited the proliferation and migration of HSCs. This study indicates that VA could protect against HSCs activation, proliferation and migration by inhibiting the autophagy in HSCs via the MIF/CD74 signaling pathway so that alleviates liver fibrosis.
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Affiliation(s)
- Lifeng Qin
- Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases (Hubei Minzu University), Enshi, 445000, Hubei Province, People's Republic of China; Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China
| | - Jiawu Tan
- Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China
| | - Xiaoping Lv
- Departments of Gastroenterology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, People's Republic of China
| | - Jiqiao Zhang
- Department of Gastroenterology, Minda Hospital of Hubei Minzu University, Enshi, Hubei Province 445000, People's Republic of China.
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4
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Wang Y, Li Q, Wang L, Liu Y, Yan T. Effects of a High-Concentrate Diet on the Blood Parameters and Liver Transcriptome of Goats. Animals (Basel) 2023; 13:ani13091559. [PMID: 37174596 PMCID: PMC10177143 DOI: 10.3390/ani13091559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023] Open
Abstract
The objective of this study was to determine the effect of high-concentrate diets on the blood parameters and liver transcriptome of goats. Eighteen goats were allocated into three dietary treatments: the high level of concentrate (HC) group, the medium level of concentrate (MC) group, and the low level of concentrate (LC) group. The blood parameters and pathological damage of the gastrointestinal tract and liver tissues were measured. In hepatic portal vein blood, HC showed higher LPS, VFAs, and LA; in jugular vein blood, no significant differences in LPS, VFAs, and LA were recorded among groups (p > 0.05). Compared to the LC and MC groups, the HC group showed significantly increased interleukin (IL)-1β, IL-10, TNF-α, and diamine oxidase in jugular vein blood (p < 0.05). Liver transcriptome analysis discovered a total of 1269 differentially expressed genes (DEGs) among the three groups and most of them came from the HC vs. LC group. There were 333 DEGs up-regulated and 608 down-regulated in the HC group compared to the LC group. The gene ontology enrichment analysis showed that these DEGs were mainly focused on the regulation of triacylglycerol catabolism, lipoprotein particle remodeling, and cholesterol transport. The Kyoto Encyclopedia of Genes and Genomes pathway analysis revealed that the liver of the HC group enhanced the metabolism of nutrients such as VFAs through the activation of AMPK and other signaling pathways and enhanced the clearance and detoxification of LPS by activating the toll-like receptor signaling pathway. A high-concentrate diet (HCD) can significantly promote the digestion of nutrients; the liver enhances the adaptability of goats to an HCD by regulating the expression of genes involved in nutrient metabolism and toxin clearance.
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Affiliation(s)
- Yusu Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Qiong Li
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Lizhi Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuehui Liu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China
| | - Tianhai Yan
- Livestock Production Sciences Branch, Agri-Food and Biosciences Institute, Large Park, Hillsborough BT26 6DR, UK
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5
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Mitra S, Patra T, Saha D, Ghosh P, Mustafi SM, Varghese AC, Murmu N. Sub-chronic cadmium and lead compound exposure induces reproductive toxicity and development of testicular germ cell neoplasia in situ in murine model: Attenuative effects of resveratrol. J Biochem Mol Toxicol 2022; 36:e23058. [PMID: 35362238 DOI: 10.1002/jbt.23058] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 01/27/2022] [Accepted: 03/18/2022] [Indexed: 12/14/2022]
Abstract
Cadmium and lead are widespread, nonbiodegradable heavy metals of perpetual environmental concerns. The present study aimed to evaluate whether sub-chronic exposure to cadmium chloride (CdCl2 ) and lead acetate [Pb(CH3 COO)2 ] induces reproductive toxicity and development of testicular germ cell neoplasia in situ (GCNIS) in swiss albino mice. The effects of resveratrol to reverse the metal-induced toxicity were also analyzed. The mice were randomly divided into four groups for metal treatments and two groups received two different doses of each metal, CdCl2 (0.25 and 0.5 mg/kg) and Pb(CH3 COO)2 (3 and 6 mg/kg). The fourth group received oral doses of 20 mg/kg resveratrol in combination with 0.5 mg/kg CdCl2 or 6 mg/kg Pb(CH3 COO)2 for 16 weeks. Toxic effects of both metals were estimated qualitatively and quantitatively by the alterations in sperm parameters, oxidative stress markers, testicular histology, and protein expressions of the treated mice. Pronounced perturbation of sperm parameters, cellular redox balance were observed with severe distortion of testicular histo-architecture in metal exposed mice. Significant overexpression of Akt cascade and testicular GCNIS marker proteins were recorded in tissues treated with CdCl2 . Notable improvements were observed in all the evaluated parameters of resveratrol cotreated mice groups. Taken together, the findings of this study showed that long-term exposure to Cd and Pb compounds, induced acute reproductive toxicity and initiation of GCNIS development in mice. Conversely, resveratrol consumption abrogated metal-induced perturbation of spermatogenesis, testicular morphology, and the upregulation of Akt cascade proteins along with GCNIS markers, which could have induced the development of testicular cancer.
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Affiliation(s)
- Sreyashi Mitra
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | - Tapas Patra
- E. Doisy Research Center, Saint Louis University, St. Louis, Missouri, USA
| | - Depanwita Saha
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | - Paramita Ghosh
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
| | | | | | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, India
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6
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Prognostic implication of desmoplastic stroma in synovial sarcoma: A histological review. Pathol Res Pract 2021; 228:153668. [PMID: 34773915 DOI: 10.1016/j.prp.2021.153668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/23/2022]
Abstract
Synovial sarcoma (SS) is a malignant soft tissue neoplasm harboring SS18-SSX fusion gene and is histologically characterized by spindle cells and epithelial components. Some investigations have demonstrated that desmoplastic reaction (DR) is an independent prognostic factor of cancers. However, it remains unknown whether DR is of predictive value for the prognosis of synovial sarcoma patients. Here, we reviewed the clinical and histological findings of 88 patients with SS. We defined DR as hyalinized collagenous structures and classified the degree of DR as follows: none, mild, moderate, and severe. Overall, 23 SS cases (24%) showed moderate or severe DR histologically. Statistically, the cases with moderate or severe degree of DR showed poorer prognosis than those with no or mild DR (local recurrence: P = 0.0059, distant metastasis: P = 0.0002, tumor death: P = 0.0382). The findings of the study suggest that the DR of synovial sarcoma could be an important prognostic factor.
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7
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Knop V, Hoppe D, Vermehren J, Troetschler S, Herrmann E, Vermehren A, Friedrich-Rust M, Sarrazin C, Trebicka J, Zeuzem S, Welker MW. Non-invasive assessment of fibrosis regression and portal hypertension in patients with advanced chronic hepatitis C virus (HCV)-associated liver disease and sustained virologic response (SVR): 3 years follow-up of a prospective longitudinal study. J Viral Hepat 2021; 28:1604-1613. [PMID: 34342081 DOI: 10.1111/jvh.13587] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/21/2021] [Accepted: 07/24/2021] [Indexed: 12/14/2022]
Abstract
Long-term effects on cirrhosis and portal hypertension of direct antiviral agent (DAA)-based eradication of hepatitis C virus (HCV) are still under debate. We analysed dynamics of liver and spleen elastography to assess potential regression of cirrhosis and portal hypertension 3 years post-treatment. Fifty-four patients with HCV-associated cirrhosis and DAA-induced SVR were included. Liver and spleen stiffness were measured at baseline (BL), end of treatment (EOT), 24 weeks after EOT (FU24) and 1, 2 and 3 (FU144) years post-treatment by transient liver elastography (L-TE) and point shear wave elastography (pSWE) using acoustic radiation force impulse (ARFI) of the liver (L-ARFI) and spleen (S-ARFI). Biochemical, virological and clinical data were also obtained. Liver stiffness assessed by L-TE decreased between BL [median (range), 32.5(9.1-75) kPa] and EOT [21.3(6.7-73.5) kPa; p < .0001] and EOT and FU144 [16(4.1-75) kPa; p = .006]. L-ARFI values improved between EOT [2.5(1.2-4.1) m/s] and FU144 [1.7(0.9-4.1) m/s; p = .001], while spleen stiffness remained unchanged. Overall, L-TE improved in 38 of 54 (70.4%) patients at EOT and 29 of 38 (76.3%) declined further until FU144, whereas L-ARFI values decreased in 30/54 (55.6%) patients at EOT and continued to decrease in 28/30 (93.3%) patients at FU144. Low bilirubin and high albumin levels at BL were associated with improved L-ARFI values (p = .048) at EOT or regression of cirrhosis (<12.5 kPa) by L-TE at FU144 (p = .005), respectively. Liver stiffness, but not spleen stiffness, continued to decline in a considerable proportion of patients with advanced liver disease after HCV eradication.
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Affiliation(s)
- Viola Knop
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Daniel Hoppe
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany.,St. Elisabeth-Krankenhaus, Leipzig, Germany
| | - Johannes Vermehren
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Sven Troetschler
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany.,Ketteler Krankenhaus, Offenbach, Germany
| | - Eva Herrmann
- Institut für Biostatistik und mathematische Modellierung, Goethe-Universität Frankfurt, Frankfurt am Main, Germany
| | - Annika Vermehren
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | | | - Christoph Sarrazin
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany.,St-Josefs-Hospital, Wiesbaden, Germany
| | - Jonel Trebicka
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Stefan Zeuzem
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
| | - Martin-Walter Welker
- Medizinische Klinik 1, Universitätsklinikum Frankfurt, Frankfurt am Main, Germany
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8
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Gewehr DM, Giovanini AF, Munhoz SI, Nagashima S, Bertoldi ADS, Sobral ACL, Kubrusly FB, Kubrusly LF. SOFTWARE-ASSISTED IMAGE ANALYSIS FOR IDENTIFICATION AND QUANTIFICATION OF HEPATIC SINUSOIDAL DILATATION AND CENTRILOBULAR FIBROSIS. ACTA ACUST UNITED AC 2021; 34:e1608. [PMID: 34669894 PMCID: PMC8521892 DOI: 10.1590/0102-672020210002e1608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/08/2021] [Indexed: 01/18/2023]
Abstract
Background:
Heart dysfunction and liver disease often coexist because of systemic disorders. Any cause of right ventricular failure may precipitate hepatic congestion and fibrosis. Digital image technologies have been introduced to pathology diagnosis, allowing an objective quantitative assessment. The quantification of fibrous tissue in liver biopsy sections is extremely important in the classification, diagnosis and grading of chronic liver disease.
Aim:
To create a semi-automatic computerized protocol to quantify any amount of centrilobular fibrosis and sinusoidal dilatation in liver Masson’s Trichrome-stained specimen.
Method:
Once fibrosis had been established, liver samples were collected, histologically processed, stained with Masson’s trichrome, and whole-slide images were captured with an appropriated digital pathology slide scanner. After, a random selection of the regions of interest (ROI’s) was conducted. The data were subjected to software-assisted image analysis (ImageJ®).
Results:
The analysis of 250 ROI’s allowed to empirically obtain the best application settings to identify the centrilobular fibrosis (CF) and sinusoidal lumen (SL). After the establishment of the colour threshold application settings, an in-house Macro was recorded to set the measurements (fraction area and total area) and calculate the CF and SL ratios by an automatic batch processing.
Conclusion:
Was possible to create a more detailed method that identifies and quantifies the area occupied by fibrous tissue and sinusoidal lumen in Masson’s trichrome-stained livers specimens.
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Affiliation(s)
- Douglas Mesadri Gewehr
- Mackenzie Evangelical Faculty of Paraná, Curitiba, Paraná, Brazil.,Denton Cooley Institute of Research, Science and Technology, Curitiba, Paraná, Brazil.,Curitiba Heart Institute, Curitiba, Paraná, Brazil
| | | | - Sofia Inez Munhoz
- Mackenzie Evangelical Faculty of Paraná, Curitiba, Paraná, Brazil.,Denton Cooley Institute of Research, Science and Technology, Curitiba, Paraná, Brazil
| | - Seigo Nagashima
- Laboratory of Experimental Pathology of Health and Biological Sciences, Pontifícia Universidade Católica do Paraná, Curitiba, Paraná, Brazil
| | | | | | - Fernando Bermudez Kubrusly
- Denton Cooley Institute of Research, Science and Technology, Curitiba, Paraná, Brazil.,Curitiba Heart Institute, Curitiba, Paraná, Brazil
| | - Luiz Fernando Kubrusly
- Mackenzie Evangelical Faculty of Paraná, Curitiba, Paraná, Brazil.,Denton Cooley Institute of Research, Science and Technology, Curitiba, Paraná, Brazil.,Curitiba Heart Institute, Curitiba, Paraná, Brazil
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9
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Seol D, Choe HH, Zheng H, Brouillette MJ, Fredericks DC, Petersen EB, Song I, Jaidev LR, Salem A, Martin JA. Intra-Articular Adeno-Associated Virus-Mediated Proteoglycan 4 Gene Therapy for Preventing Post-Traumatic Osteoarthritis. Hum Gene Ther 2021; 33:529-540. [PMID: 34610749 PMCID: PMC9142765 DOI: 10.1089/hum.2021.177] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
OBJECTIVE Lubricin, a glycoprotein encoded by the proteoglycan 4 (PRG4) gene, is an essential boundary lubricant that reduces friction between articular cartilage surfaces. The loss of lubricin subsequent to joint injury plays a role in the pathogenesis of post-traumatic osteoarthritis (PTOA). Here we describe the development and evaluation of an adeno-associated virus (AAV)-based PRG4 gene therapy intended to restore lubricin in injured joints. The green fluorescent protein (GFP) gene was inserted the PRG4 gene to facilitate tracing the distribution of the transgene product (AAV-PRG4-GFP) in vivo. METHODS Transduction efficiency of AAV-PRG4-GFP was evaluated in joint cells, and the conditioned medium containing secreted PRG4-GFP was used for shear loading/friction and viability tests. In vivo transduction of joint tissues following intra-articular injection of AAV-PRG4-GFP was confirmed in the mouse stifle joint in a surgical model of destabilization of the medial meniscus (DMM), and chondroprotective activity was tested in a rabbit anterior cruciate ligament transection (ACLT) model. RESULTS In vitro studies showed that PRG4-GFP has lubricin-like cartilage binding and anti-friction properties. Significant cytoprotective effects were seen when cartilage was soaked in PRG4-GFP prior to cyclic shear loading (n = 3). Polymerase chain reaction and confocal microscopy confirmed the presence of PRG4-GFP DNA and protein, respectively, in a mouse DMM (n = 3 per group). In the rabbit ACLT model, AAV-PRG4-GFP gene therapy enhanced lubricin expression (p = 0.001 versus AAV-GFP: n = 7-14) and protected the cartilage from degeneration (p = 0.014 versus AAV-GFP: n = 9-10) when treatments were administered immediately post-operation, but efficacy was lost when treatment was delayed for 2 weeks. CONCLUSION AAV-PRG4-GFP gene therapy protected cartilage from degeneration in a rabbit ACLT model; however, data from the ACLT model suggest that early intervention is essential for efficacy.
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Affiliation(s)
- Dongrim Seol
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States.,The University of Iowa, 4083, Orthodontics, Iowa City, Iowa, United States;
| | - Hyeong Hun Choe
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States;
| | - Hongjun Zheng
- Washington University School of Medicine in Saint Louis, 12275, Orthopaedic Surgery, St Louis, Missouri, United States;
| | - Marc J Brouillette
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States;
| | - Douglas C Fredericks
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States;
| | - Emily B Petersen
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States;
| | - Ino Song
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States.,The University of Iowa, 4083, Roy J. Carver Biomedical Engineering, Iowa City, Iowa, United States;
| | - L R Jaidev
- The University of Iowa, 4083, Pharmaceutical Sciences and Experimental Therapeutics, Iowa City, Iowa, United States;
| | - Aliasger Salem
- The University of Iowa, 4083, Pharmaceutical Sciences and Experimental Therapeutics, Iowa City, Iowa, United States;
| | - James A Martin
- The University of Iowa, 4083, Orthopedics and Rehabilitation, Iowa City, Iowa, United States.,The University of Iowa, 4083, Roy J. Carver Biomedical Engineering, Iowa City, Iowa, United States.,The University of Iowa, 4083, Pharmaceutical Sciences and Experimental Therapeutics, Iowa City, Iowa, United States;
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10
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Chen X, Ma J, He Y, Xue J, Song Z, Xu Q, Lin G. Characterization of liver injury induced by a pyrrolizidine alkaloid in rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 89:153595. [PMID: 34153877 DOI: 10.1016/j.phymed.2021.153595] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/27/2021] [Accepted: 05/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Pyrrolizidine alkaloids (PAs) are common phytotoxins. PA intoxication is reported to cause severe acute liver damage, typically known as hepatic sinusoidal obstruction syndrome (HSOS), but it remains obscure whether the acute liver damage may progress into chronic liver disease characterized by hepatic fibrosis. PURPOSE This study aims to characterize the biochemical markers of liver injury and histological features of regressive and progressive liver fibrosis, and to examine changes in hepatic gene expression that may underpin mechanisms of fibrogenesis in rats induced by retrorsine (RTS), a representative toxic PA. STUDY DESIGN/METHODS Rats were gavaged with RTS via two dosing regimens, i.e. a single dose of 40 mg/kg (Group 1) and two doses of 40 mg/kg and 20 mg/kg on day 0 and day 7 (Group 2), respectively. Rats receiving one (Group 3) or two (Group 4) doses of vehicle served as negative controls. The animals were followed for up to 16 weeks by serum biochemical analyses and histological examination, and gene expression assays of liver tissues. RESULTS Acute liver injury on day 2 manifested as HSOS, characterized by sinusoidal dilation, endothelial cell damage, and elevated serum alanine aminotransferase activity and bilirubin levels. In Group 1, mild liver fibrosis developed at sinusoids and perisinusoidal space surrounding the central veins at week 1 and 2, and thereafter, all liver injury resolved gradually. In Group 2, liver fibrosis progressed within the 16-week observation period. No apparent liver injury was observed in Groups 3 and 4. Compared with negative control groups, RTS induced myofibroblastic activation, TGF-β1 signaling, and changes in expression of matrix metalloproteinase 9 (MMP-9) and tissue inhibitor of metalloproteinase 1 (TIMP-1). These dynamic changes differed in Groups 1 and 2, corresponding with the regression and progression of liver fibrosis, respectively, in these groups. CONCLUSION This study has provided in-vivo proof of concept that "one hit" and "two hits" of RTS lead to acute resolving liver injury and chronic progressive liver fibrosis, respectively. These animal models may serve as powerful tools for studying RTS toxicology and related preventive and therapeutic strategies and as positive controls for studying other PA- and non-PA-induced liver injury.
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Affiliation(s)
- Xinmeng Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jiang Ma
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Yisheng He
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Junyi Xue
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Zijing Song
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Qihe Xu
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology & Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
| | - Ge Lin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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Zhuang G, Wen Y, Briggs M, Shao Q, Tran D, Wang H, Chen B. Secretomes of human pluripotent stem cell-derived smooth muscle cell progenitors upregulate extracellular matrix metabolism in the lower urinary tract and vagina. Stem Cell Res Ther 2021; 12:228. [PMID: 33823931 PMCID: PMC8025391 DOI: 10.1186/s13287-021-02292-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 03/17/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Adult mesenchymal stem cells (MSCs) have been studied extensively for regenerative medicine; however, they have limited proliferation in vitro, and the long culture time induces cell senescence. MSCs also contribute to tissue repair through their paracrine function. In this study, we sought to examine the paracrine effects of human smooth muscle cell progenitors (pSMC) on the urethra and adjacent vagina of stress urinary incontinence rodents. We use human pluripotent stem cell (PSC) lines to derive pSMCs to overcome the issue of decreased proliferation in tissue culture and to obtain a homogenous cell population. METHOD Three human PSC lines were differentiated into pSMCs. The conditioned medium (CM) from pSMC culture, which contain pSMC secretomes, was harvested. To examine the effect of the CM on the extracellular matrix of the lower urinary tract, human bladder smooth muscle cells (bSMCs) and vaginal fibroblasts were treated with pSMC-CM in vitro. Stress urinary incontinence (SUI) was induced in rats by surgical injury of the urethra and adjacent vagina. SUI rats were treated with pSMC-CM and monitored for 5 weeks. Urethral pressure testing was performed prior to euthanasia, and tissues were harvested for PCR, Western blot, and histological staining. Kruskal-Wallis one-way ANOVA test and Student t test were used for statistical comparisons. RESULTS pSMC-CM upregulated MMP-2, TIMP-2, collagen, and elastin gene expression, and MMP-9 activity in the human bladder and vaginal cells consistent with elastin metabolism modulation. pSMC-CM treatment in the SUI rat improved urethral pressure (increase in leak point pressure compared to intact controls, p < 0.05) and increased collagen and elastin expression in the urethra and the adjacent vagina. CONCLUSION Conditioned media from smooth muscle cell progenitors derived from human pluripotent stem cells improved urethral leak point pressure and collagen and elastin content in the SUI rat. These findings suggest a novel therapeutic potential for PSC-based treatments for SUI and pelvic floor disorders where tissues are affected by collagen, elastin, and smooth muscle loss.
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Affiliation(s)
- Guobing Zhuang
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
- Department of Obstetrics/Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yan Wen
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
| | - Mason Briggs
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
| | - Qingchun Shao
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
- Department of Obstetrics/Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Darlene Tran
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
| | - Hongbo Wang
- Department of Obstetrics/Gynecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Bertha Chen
- Department of Obstetrics/Gynecology, Stanford University School of Medicine, 300 Pasteur Drive HH-333, Stanford, CA 94305 USA
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12
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Teufel-Schäfer U, Flechtenmacher C, Fichtner A, Hoffmann GF, Schenk JP, Engelmann G. Transient elastography correlated to four different histological fibrosis scores in children with liver disease. Eur J Pediatr 2021; 180:2237-2244. [PMID: 33704581 PMCID: PMC8195947 DOI: 10.1007/s00431-021-04001-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 01/15/2021] [Accepted: 02/18/2021] [Indexed: 12/17/2022]
Abstract
Currently, liver histology is the gold standard for the detection of liver fibrosis. In recent years, new methods such as transient elastography (TE) have been introduced into clinical practice, which allow a non-invasive assessment of liver fibrosis. The aim of the present study was to investigate the predictive value of TE for higher grade fibrosis and whether there is any relevance which histologic score is used for matching. For this purpose, we compared TE with 4 different histologic scores in pediatric patients with hepatopathies. Furthermore, we also determined the aspartate aminotransferase-to-platelet ratio (APRI) score, another non-invasive method, to investigate whether it is equally informative. Therefore, liver fibrosis in 75 children was evaluated by liver biopsy, TE and laboratory values. Liver biopsies were evaluated using four common histological scoring systems (Desmet, Metavir, Ishak and Chevalier's semi-quantitative scoring system). The median age of the patients was 12.3 years. TE showed a good correlation to the degree of fibrosis severity independent of the histological scoring system used. The accuracy of the TE to distinguish between no/minimal fibrosis and severe fibrosis/cirrhosis was good (p = 0.001, AUC-ROCs > 0.81). The optimal cut-off value for the prediction of severe fibrosis was 10.6 kPa. In contrast, the APRI score in our collective showed no correlation to fibrosis.Conclusion: TE shows a good correlation to the histological findings in children with hepatopathy, independent of the used histological scoring system. What is Known: • The current gold standard for detecting liver fibrosis is liver biopsy. Novel non-invasive ultrasound-based methods are introduced to clinical diagnostics. • Most histological scores have been developed and evaluated in adult populations and for only one specific liver disease. What is New: • Transient elastography (TE) in children showed a good correlation to fibrosis severity irrespective of the utilized histological scoring system. • The aspartate aminotransferase-to-platelet ratio (APRI) showed no correlation with different stages of liver fibrosis in children.
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Affiliation(s)
- Ulrike Teufel-Schäfer
- Department of General Pediatrics, Adolescent Medicine and Neonatology, Faculty of Medicine, Medical Center, University of Freiburg, Mathildenstr. 1, 79106 Freiburg, Germany
- Division of Pediatric Gastroenterology and Hepatology, Center for Child and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Christa Flechtenmacher
- Department of Pathology, University Medical Centre, University of Heidelberg, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Alexander Fichtner
- Division of Pediatric Gastroenterology and Hepatology, Center for Child and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Georg Friedrich Hoffmann
- Division of Pediatric Gastroenterology and Hepatology, Center for Child and Adolescent Medicine, University Hospital Heidelberg, Im Neuenheimer Feld 430, 69120 Heidelberg, Germany
| | - Jens Peter Schenk
- Division of Pediatric Radiology, Department of Diagnostic and Interventional Radiology, University Medical Centre, University of Heidelberg, Heidelberg, Germany
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13
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Systematic review of outcomes and meta-analysis of risk factors for prognosis after liver resection for hepatocellular carcinoma without cirrhosis. Asian J Surg 2020; 44:36-45. [PMID: 32988708 DOI: 10.1016/j.asjsur.2020.08.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/28/2020] [Accepted: 08/09/2020] [Indexed: 02/07/2023] Open
Abstract
Long-term overall survival (OS) after liver resection for non-cirrhotic hepatocellular carcinoma (NCHCC) has been reported recently. The aim of this study was to review outcomes systematically and analyze risk factors for survival after surgical resection for HCC without cirrhosis. A literature search was performed of the PubMed and Embase databases for papers published between January 1995 and October 2012, which focused on hepatic resection for HCC without underlying cirrhosis. Cochrane systematic review methodology was used for this review. Outcomes were OS, operative mortality and disease-free survival (DFS). Pooled hazard ratios (HR) were calculated using the random effects model for parameters considered as potential prognostic factors. Totally, 26 retrospective case series were eligible for inclusion. The 1-, 3- and 5-year OS rate after surgical resection of NCHCC ranged from 62% to 100%, 46.3%-78.0%, and 30%-64%, respectively. The corresponding DFS rates ranged from 48.7% to 84%, 31.0%-66.0%, and 24.0%-58.0%, respectively. Five variables were related to poor survival: multiple tumors (HR 1.68, 95%CI 1.25-2.11); larger tumor size (HR 2.66, 95%CI 1.69-3.63); non-clear resection margin (R0 resection) (HR 3.52, 95%CI 1.63-5.42); poor tumor stage (HR 2.61, 95%CI 1.64-3.58); and invasion of the lymphatic vessels (HR 4.85, 95%CI 2.67-7.02). In sum, hepatic resection provides excellent OS rates for patients with NCHCC, and results have tended to improve recently. Risk factors for poor prognosis comprise multiple tumors, lager tumor size, non-R0 resection and invasion of the lymphatic vessels.
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Peng F, Tian Y, Ma J, Xu Z, Wang S, Tang M, Lei J, Gong G, Jiang Y. CAT1 silencing inhibits TGF-β1-induced mouse hepatic stellate cell activation in vitro and hepatic fibrosis in vivo. Cytokine 2020; 136:155288. [PMID: 32980687 DOI: 10.1016/j.cyto.2020.155288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/31/2022]
Abstract
Hepatic fibrosis is characterized by abnormal accumulation of extracellular matrix (ECM). Hepatic stellate cells (HSCs) are the primary cells that produce ECM in response to hepatic injury, and transforming growth factor-beta (TGF-β) has been regarded as the central stimulus responsible for HSC-mediated ECM production. In the present study, we attempted to identify a critical factor in HSC activation and the underlying mechanism. By analyzing online microarray expression profiles, we found that the expression of high-affinity cationic amino acid transporter 1 (CAT1) was upregulated in hepatic fibrosis models and activated HSCs. We isolated and identified mouse HSCs (MHSCs) and found that in these cells, CAT1 was most highly upregulated by TGF-β1 stimulation in both time- and dose-dependent manners. In vitro, CAT1 overexpression further enhanced, while CAT1 silencing inhibited, the effect of TGF-β1 in promoting MHSC activation. In vivo, CAT1 silencing significantly improved the hepatic fibrosis induced by both CCl4 and non-alcoholic fatty liver disease (NAFLD). In summary, CAT1 was significantly upregulated in TGF-β1-activated MHSCs and mice with hepatic fibrosis. CAT1 silencing inhibited TGF-β1-induced MHSC activation in vitro and fibrogenic changes in vivo. CAT1 is a promising target for hepatic fibrosis treatment that requites further investigation in human cells and clinical practice.
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Affiliation(s)
- Feng Peng
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yi Tian
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jing Ma
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Zhenyu Xu
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Sujuan Wang
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Min Tang
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Jianhua Lei
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Guozhong Gong
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Yongfang Jiang
- Liver Diseases Research Center, The Second Xiangya Hospital, Central South University, Changsha 410011, China.
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15
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Jiang K, Mohammad MK, Dar WA, Kong J, Farris AB. Quantitative assessment of liver fibrosis by digital image analysis reveals correlation with qualitative clinical fibrosis staging in liver transplant patients. PLoS One 2020; 15:e0239624. [PMID: 32986732 PMCID: PMC7521727 DOI: 10.1371/journal.pone.0239624] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/10/2020] [Indexed: 12/19/2022] Open
Abstract
Technologies for digitizing tissues provide important quantitative data for liver histopathology investigation. We aimed to assess liver fibrosis degree with quantitative morphometric measurements of histopathological sections utilizing digital image analysis (DIA) and to further investigate if a correlation with histopathologic scoring (Scheuer staging) exists. A retrospective study of patients with at least two post-liver transplant biopsies having a Scheuer stage of ≤ 2 at baseline were gathered. Portal tract fibrotic percentage (%) and size (μm2) were measured by DIA, while clinical fibrosis score was measured by the Scheuer system. Correlations between DIA measurements and Scheuer scores were computed by Spearman correlation analysis. Differences between mean levels of fibrosis (score, size, and percentage) at baseline versus second visit were computed by Student’s t-test. P values < 0.05 were considered significant. Of 22 patients who met the study criteria, 54 biopsies were included for analysis. Average levels ±standard error [S.E.] of portal tract fibrotic percentage (%) and size (μm2) progressed from 46.5 ± 3.6% at baseline to 61.8 ± 3.8% at the second visit (P = 0.005 by Student’s t-test), and from 28,075 ± 3,232 μm2 at base line to 67,146 ± 10,639 μm2 at the second visit (P = 0.002 by Student’s t-test), respectively. Average levels of Scheuer fibrosis scores progressed from 0.55±0.19 at baseline to 1.14±0.26 at the second visit (P = 0.02 by Student’s t-test). Portal tract fibrotic percentage (%) and portal tract fibrotic size were directly correlated with clinical Scheuer fibrosis stage, with Spearman correlation coefficient and P value computed as r = 0.70, P < 0.0001 and r = 0.41, P = 0.002, respectively. Digital quantitative assessment of portal triad size and fibrosis percentage demonstrates a strong correlation with visually assessed histologic stage of liver fibrosis and complements the standard assessment for allograft monitoring, suggesting the utility of future WSI analysis.
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Affiliation(s)
- Kun Jiang
- Department of Pathology, Emory University, Atlanta, Georgia, United States of America
- Department of Pathology, University of South Florida, Tampa, Florida, United States of America
| | - Mohammad K. Mohammad
- Department of Pathology, Emory University, Atlanta, Georgia, United States of America
| | - Wasim A. Dar
- Department of Surgery, The University of Texas Health Science Center, Houston, Texas, United States of America
| | - Jun Kong
- Department of Mathematics and Statistics, Georgia State University, Atlanta, Georgia, United States of America
- Department of Computer Science, Georgia State University, Atlanta, Georgia, United States of America
- Department of Computer Science, Emory University, Atlanta, Georgia, United States of America
- Department of Biomedical Informatics, Emory University, Atlanta, Georgia, United States of America
- Winship Cancer Institute, Emory University, Atlanta, Georgia, United States of America
| | - Alton B. Farris
- Department of Pathology, Emory University, Atlanta, Georgia, United States of America
- Winship Cancer Institute, Emory University, Atlanta, Georgia, United States of America
- * E-mail:
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Ghosh P, Alam N, Mandal S, Mustafi SM, Murmu N. Association of mTOR pathway with risk of gastric cancer in male smoker with potential prognostic significance. Mol Biol Rep 2020; 47:7489-7495. [PMID: 32918126 DOI: 10.1007/s11033-020-05808-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/03/2020] [Indexed: 12/13/2022]
Abstract
Aberrant expression of mTOR signaling pathway is significantly associated with gastric cancer. However, the effect of smoking on mTOR expression and its downstream signaling molecules in gastric cancer has not been explored. Our study aims to investigate the effect of smoking on p-mTOR and its correlation with various downstream targets and survival of the smoker and never-smoker in advanced gastric cancer patients. Forty-one smokers and 41 never-smokers patient sample with the advanced gastric carcinoma were chosen for this study. Immunohistochemistry and western blot analysis were performed to check the expression of p-mTOR and its downstream targets. The correlation of p-mTOR with its downstream targets was analyzed by linear regression analysis in Graph Pad Prism software. Survivability analysis was examined by Kaplan-Meier method with log rank test in SPSS. High expression of p-mTOR and its downstream targets were observed in advanced gastric cancer smoker patients as compared to never-smokers by immunohistochemistry and western blot analysis. Results revealed that over expressed p-mTOR in smoker patients were positively correlated with its downstream targets (P < 0.05) and poor survival (P = 0.034). Over expression of p-mTOR in gastric cancer male smoker patients had the worse outcome.
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Affiliation(s)
- Paramita Ghosh
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata, 700026, India
| | - Neyaz Alam
- Department of Surgical Oncology, Chittaranjan National Cancer Institute, 37, S.P. Mukherjee Road, Kolkata, 700026, India
| | - Shyamsundar Mandal
- Department of Epidemiology and Biostatistics, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata, 700026, India
| | - Saunak Mitra Mustafi
- Department of Pathology, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata, 700026, India
| | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines, Chittaranjan National Cancer Institute, 37, S. P. Mukherjee Road, Kolkata, 700026, India.
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Dong W, Yu H, Zhu YY, Xian ZH, Chen J, Wang H, Shi CC, Jin GZ, Dong H, Cong WM. A Novel Pathological Scoring System for Hepatic Cirrhosis with Hepatocellular Carcinoma. Cancer Manag Res 2020; 12:5537-5547. [PMID: 32753967 PMCID: PMC7354953 DOI: 10.2147/cmar.s223417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 05/17/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose This study aimed to propose an effective quantitative pathological scoring system and to establish nomogram to assess the stage of cirrhosis and predict postoperative survival of hepatocellular carcinoma (HCC) with cirrhosis patients after hepatectomy. Methods The scoring system was based on a retrospective study on 163 patients who underwent partial hepatectomy for HCC with cirrhosis. The clinicopathological and follow-up data of 163 HCC with cirrhosis patients who underwent hepatectomy in our hospital from 2010 to 2014 were retrospectively reviewed. A scoring system was established based on the total value of independent predictive factors of cirrhosis. The results were validated using 97 patients operated on from 2011 to 2015 at the same institution. Nomogram was then formulated using a multivariate Cox proportional hazards model to analyze. Results The scoring system was ultimately composed of 4 independent predictive factors and was divided into 3 levels. The new cirrhosis system score strongly correlated with Child–Pugh score (r=0.8058, P<0.0001) 3 months after surgery; higher cirrhosis system scores predicted poorer liver function and stronger liver damage 3 months after surgery. Then, a four-factor nomogram for survival prediction was established. The concordance indices were 0.79 for the survival-prediction nomogram. The calibration curves showed good agreement between predictions by the nomogram and actual survival outcomes. Conclusion This new scoring system of cirrhosis can help us predict the liver function and liver injury 3 months after surgery, and the nomogram enabled accurate predictions of risk of overall survival in patients of HCC with cirrhosis after hepatectomy.
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Affiliation(s)
- Wei Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Hua Yu
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Yu-Yao Zhu
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Zhi-Hong Xian
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Jia Chen
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Hao Wang
- Department of Hepatobiliary Diseases, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China
| | - Chun-Chao Shi
- Second Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China
| | - Guang-Zhi Jin
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200050, People's Republic of China
| | - Hui Dong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
| | - Wen-Ming Cong
- Department of Pathology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, People's Republic of China.,Key Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University, The Ministry of Education, Shanghai 200438, People's Republic of China
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Xu LM, Liu P. Guidelines for diagnosis and treatment of hepatic fibrosis with integrated traditional Chinese and Western medicine (2019 edition). JOURNAL OF INTEGRATIVE MEDICINE 2020; 18:203-213. [PMID: 32331978 DOI: 10.1016/j.joim.2020.03.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022]
Abstract
In 2006, the Hepatology Committee of Chinese Association of Integrative Medicine issued the "Guidelines for the Prevention and Treatment of Liver Fibrosis with Integrated Traditional Chinese and Western Medicine." In recent years, the fields of Chinese medicine, Western medicine, and integrative medicine have made rapid advances in basic and clinical research into chronic liver disease, and accumulated new evidence for the prevention and treatment of hepatic fibrosis. Therefore, in order to meet clinical needs, liver disease experts of integrated traditional Chinese and Western medicine were united to revise the previous guidelines in order to help physicians make correct and reasonable decisions in the diagnosis and treatment of hepatic fibrosis.
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Affiliation(s)
- Lie-Ming Xu
- Institute of Liver Diseases, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Ping Liu
- Institute of Liver Diseases, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Abstract
Liver disease has been targeted as the fifth most common cause of death worldwide and tends to steadily rise. In the last three decades, several publications focused on the quantification of liver fibrosis by means of the estimation of the collagen proportional area (CPA) in liver biopsies obtained from digital image analysis (DIA). In this paper, early and recent studies on this topic have been reviewed according to these research aims: the datasets used for the analysis, the employed image processing techniques, the obtained results, and the derived conclusions. The purpose is to identify the major strengths and “gray-areas” in the landscape of this topic.
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Lee JG, Sohn JH, Jeong JY, Kim TY, Kim SM, Cho YS, Kim Y. Combined effect of hepatic venous pressure gradient and liver stiffness on long-term mortality in patients with cirrhosis. Korean J Intern Med 2020; 35:88-98. [PMID: 30791681 PMCID: PMC6960044 DOI: 10.3904/kjim.2018.151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/26/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND/AIMS Both hepatic venous pressure gradient (HVPG) and liver stiffness (LS) are useful tools for predicting mortality in patients with cirrhosis. We investigated the combined effect of HVPG and LS on long-term mortality in patients with cirrhosis. METHODS We retrospectively collected data from 103 patients with cirrhosis, whose HVPG and LS were measured between November 2009 and September 2013. The patients were divided into four groups according to the results of the HVPG and LS measurements. Long-term mortality and the risk factors for mortality were analyzed. RESULTS Of the 103 patients, 35 were in group 1 (low HVPG and low LS), 16 in group 2 (high HVPG and low LS), 24 in group 3 (low HVPG and high LS), and 28 in group 4 (high HVPG and high LS). Over a median follow-up of 47.3 months, 18 patients died. The mortality rate of patients in group 4 was significantly higher than in the other three groups (vs. group 1, p = 0.005; vs. group 2, p = 0.049; vs. group 3, p = 0.004), but there were no significant differences in survival between groups 1, 2, and 3. In multivariable analyses, both HVPG and LS were identified as independent risk factors for mortality (hazard ratio [HR], 1.127, p = 0.018; and HR, 1.062, p = 0.009, respectively). CONCLUSION In patients with cirrhosis, those with concurrent elevation of HVPG and LS had the highest long-term mortality rates. However, when either HVPG or LS alone was elevated, mortality did not increase significantly.
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Affiliation(s)
- Jae Gon Lee
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Joo Hyun Sohn
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
- Correspondence to Joo Hyun Sohn, M.D. Department of Internal Medicine, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri 11923, Korea Tel: +82-31-560-2225 Fax: +82-31-555-2998 E-mail:
| | - Jae Yoon Jeong
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Tae Yeob Kim
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Sun Min Kim
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Young Seo Cho
- Department of Radiology, Hanyang University Guri Hospital, Guri, Korea
| | - Yongsoo Kim
- Department of Radiology, Hanyang University Guri Hospital, Guri, Korea
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21
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Mak KM, Png CYM. The Hepatic Central Vein: Structure, Fibrosis, and Role in Liver Biology. Anat Rec (Hoboken) 2019; 303:1747-1767. [PMID: 31581357 DOI: 10.1002/ar.24273] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/11/2019] [Accepted: 08/14/2019] [Indexed: 12/19/2022]
Abstract
The hepatic central vein is a primary source of Wnt2, Wnt9b, and R-spondin3. These angiocrines activate ß-catenin signaling to regulate hepatic metabolic zonation and perivenous gene expression in mice. Little is known about the central vein ultrastructure. Here, we describe the morphological-functional correlates of the central vein and its draining and branching patterns. Central vein fibrosis occurs in liver disease and is often accompanied by perivenous perisinusoidal fibrosis, which may affect perivenous gene expression. We review the biological properties of perivenous hepatocytes and glutamine synthetase that serve as a biomarker of perivenous hepatocytes. Glutamine synthetase and P4502E1 are indicators of ß-catenin activity in centrilobular liver injury and regeneration. The Wnt/ß-catenin pathway is the master regulator of hepatic metabolic zonation and perivenous gene expression and is modulated by the R-spondin-LGR4/5-ZNRF3/RNF43 module. We examined the structures of the molecules of these pathways and their involvements in liver biology. Central vein-derived Wnts and R-spondin3 participate in the cellular-molecular circuitry of the Wnt/ß-catenin and R-spondin-LGR4/5-ZNRF3/RNF43 module. The transport and secretion of lipidated Wnts in Wnt-producing cells require Wntless protein. Secreted Wnts are carried on exosomes in the extracellular matrix to responder cells. The modes of release of Wnts and R-spondin3 from central veins and their transit in the venular wall toward perivenous hepatocytes are unknown. We hypothesize that central vein fibrosis may impact perivenous gene expression. The proposal that the central vein constitutes an anatomical niche of perivenous stem cells that subserve homeostatic hepatic renewal still needs studies using additional mouse models for validation. Anat Rec, 2019. © 2019 American Association for Anatomy Anat Rec, 303:1747-1767, 2020. © 2019 American Association for Anatomy.
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Affiliation(s)
- Ki M Mak
- Department of Medical Education and Center for Anatomy and Functional Morphology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - C Y Maximilian Png
- Division of Vascular Surgery, Massachusetts General Hospital, Boston, Massachusetts
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22
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Andruszkow J, Hartleben B, Schlué J, Ritz T, Knüchel R, Hasan A, Petersen C, Madadi-Sanjani O. [Staging of liver fibrosis in biliary atresia : Comparison of Chevallier and Ishak score as well as automated evaluation]. DER PATHOLOGE 2019; 40:85-92. [PMID: 30617605 DOI: 10.1007/s00292-018-0558-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Biliary atresia (BA) is a rare disease of the newborn, resulting in liver cirrhosis due to obliterative cholangiopathy. Liver biopsies are commonly performed in order to confirm the diagnosis and in order to stage fibrosis. OBJECTIVES The present study intended to analyze two established scores for evaluating liver fibrosis focusing on the interobserver variability as well as the prognostic reliability towards the time of liver transplantation. MATERIALS AND METHODS Liver biopsies of BA patients between 2012 and 2015 were evaluated retrospectively by two pathologists at the Hannover Medical School (MHH) and the RWTH Aachen University Hospital. Fibrosis was measured using Ishak and Chevallier scores. Furthermore, a computerized automatically algorithm-based analyzation (ABAA) was performed. Results were evaluated towards the time point of liver transplantation and hepatoportoenterostomy (HPE). RESULTS Overall, 34 liver biopsies were analyzed. The Ishak score showed a remarkable interobserver variability (ΚW = 0.68) while the Chevallier score was proven to have a poor interobserver variability (Fleiss' Κappa = -0.01). However, both scores were correlated positively, as was the ABAA (p < 0.001). Regarding prognostic reliability, ROC analyses of the Ishak score revealed the best validity towards an early liver transplantation within 12 months (AUC 0.813, p = 0.011). In addition, an increased Ishak score ≥4 reduced the survival time with the native liver (hazard ratio 6.6 [95% CI 1.9-23.3]). CONCLUSIONS The Ishak score was revealed to have the best interobserver variability as well as prognostic validity towards an early liver transplantation in BA patients. Due to its easy applicability, the Ishak score was proven superior in comparison to the Chevallier score and ABAA. Therefore, use of the Ishak score is recommended in daily clinical routine for analyzing liver biopsies in BA patients.
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Affiliation(s)
- J Andruszkow
- Institut für Pathologie, Uniklinik RWTH Aachen, Aachen, Deutschland.
| | - B Hartleben
- Institut für Pathologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - J Schlué
- Institut für Pathologie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - T Ritz
- Institut für Pathologie, Uniklinik RWTH Aachen, Aachen, Deutschland
| | - R Knüchel
- Institut für Pathologie, Uniklinik RWTH Aachen, Aachen, Deutschland
| | - A Hasan
- Zentrum für Kinderchirurgie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - C Petersen
- Zentrum für Kinderchirurgie, Medizinische Hochschule Hannover, Hannover, Deutschland
| | - O Madadi-Sanjani
- Zentrum für Kinderchirurgie, Medizinische Hochschule Hannover, Hannover, Deutschland
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Peng Y, Li L, Zhang X, Xie M, Yang C, Tu S, Shen H, Hu G, Tao L, Yang H. Fluorofenidone affects hepatic stellate cell activation in hepatic fibrosis by targeting the TGF-β1/Smad and MAPK signaling pathways. Exp Ther Med 2019; 18:41-48. [PMID: 31258636 PMCID: PMC6566051 DOI: 10.3892/etm.2019.7548] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 09/18/2018] [Indexed: 02/06/2023] Open
Abstract
The aim of the present research was to study the therapeutic impacts of fluorofenidone (AKF-PD) on pig serum (PS)-induced liver fibrosis in rats and the complex molecular mechanisms of its effects on hepatic stellate cells (HSCs). Wistar rats were randomly divided into normal control, PS and PS/AKF-PD treatment groups. The activated human HSC LX-2 cell line was also treated with AKF-PD. The expression of collagen I and III, and α-smooth muscle actin (α-SMA) was determined by immunohistochemical staining and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Western blotting and/or RT-qPCR analyses were used to determine the expression of transforming growth factor (TGF)-β1, α-SMA, collagen I, mothers against decapentaplegic homolog (Smad)-3, extracellular signal-regulated kinase (ERK)1/2, p38 mitogen-activated protein kinase (p38 MAPK) and c-Jun N-terminal kinase (JNK). AKF-PD attenuated the degree of hepatic fibrosis and liver injury in vivo, which was associated with the downregulation of collagen I and III, and α-SMA at the mRNA and protein levels. In vitro, AKF-PD treatment significantly reduced the TGF-β1-induced activation of HSCs, as determined by the reduction in collagen I and α-SMA protein expression. The TGF-β1-induced upregulation of the phosphorylation of Smad 3, ERK1/2, p38 and JNK was attenuated by AKF-PD treatment. These findings suggested that AKF-PD attenuated the progression of hepatic fibrosis by suppressing HSCs activation via the TGF-β1/Smad and MAPK signaling pathways, and therefore that AKF-PD may be suitable for use as a novel therapeutic agent against liver fibrosis.
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Affiliation(s)
- Yu Peng
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Li Li
- Department of Gastroenterology, The First People's Hospital of Changde City, Changde, Hunan 415000, P.R. China
| | - Xin Zhang
- Department of General Practice, The First People's Hospital of Lianyungang, Lianyungang, Jiangsu 222000, P.R. China
| | - Mingyan Xie
- Department of Gastroenterology, The First People's Hospital of Changde City, Changde, Hunan 415000, P.R. China
| | - Congying Yang
- Department of Endoscopy Center, Hunan Cancer Hospital, Changsha, Hunan 410000, P.R. China
| | - Sha Tu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Hong Shen
- Institute of Medical Sciences, Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China
| | - Gaoyun Hu
- Faculty of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410000, P.R. China
| | - Lijian Tao
- Department of Nephropathy, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Huixiang Yang
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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Song L, Chen TY, Zhao XJ, Xu Q, Jiao RQ, Li JM, Kong LD. Pterostilbene prevents hepatocyte epithelial-mesenchymal transition in fructose-induced liver fibrosis through suppressing miR-34a/Sirt1/p53 and TGF-β1/Smads signalling. Br J Pharmacol 2019; 176:1619-1634. [PMID: 30632134 DOI: 10.1111/bph.14573] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 10/22/2018] [Accepted: 11/06/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND AND PURPOSE Excessive fructose consumption is a risk factor for liver fibrosis. Pterostilbene protects against liver fibrosis. Here, we investigated the potential role and the mechanisms underlying the hepatocyte epithelial-mesenchymal transition (EMT) in fructose-induced liver fibrosis and protection by pterostilbene. EXPERIMENTAL APPROACH Characteristic features of liver fibrosis in 10% fructose-fed rats and EMT in 5 mM fructose-exposed BRL-3A cells with or without pterostilbene and the change of miR-34a/Sirt1/p53 and transforming growth factor-β1 (TGF-β1)/Smads signalling were examined. MiR-34a inhibitor, miR-34a minic, or p53 siRNA were used to explore the role of miR-34a/Sirt1/p53 signalling in fructose-induced EMT and the action of pterostilbene. KEY RESULTS Pterostilbene prevented fructose-induced liver injury with fibrosis in rats. Fructose caused hepatocyte undergoing EMT, gaining fibroblast-specific protein 1 and vimentin, and losing E-cadherin, effects attenuated by pterostilbene. Moreover, fructose induced miR-34a overexpression in hepatocytes with down-regulated Sirt1, increased p53 and ac-p53, and activated TGF-β1/Smads signalling, whereas these disturbances were suppressed by miR-34a inhibitor. Additionally, miR-34a inhibitor and p53 siRNA prevented TGF-β1-driven hepatocyte EMT under fructose exposure. Pterostilbene down-regulated miR-34a, up-regulated Sirt1, and suppressed p53 activation and TGF-β1/Smads signalling in fructose-stimulated animals and cells but showed no additional effects with miR-34a inhibitor on miR-34a/Sirt1/p53 signalling in fructose-exposed hepatocytes. CONCLUSIONS AND IMPLICATIONS These results strongly suggest that activation of miR-34a/Sirt1/p53 signalling is required for fructose-induced hepatocyte EMT mediated by TGF-β1/Smads signalling, contributing to liver fibrosis in rats. Pterostilbene exhibits a protective effect against liver fibrosis at least partly through inhibiting miR-34a/Sirt1/p53 signalling activation.
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Affiliation(s)
- Lin Song
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Tian-Yu Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.,State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiao-Juan Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Rui-Qing Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Jian-Mei Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Ling-Dong Kong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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25
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Shin GM, Koppula S, Chae YJ, Kim HS, Lee JD, Kim MK, Song M. Anti-hepatofibrosis effect of Allium senescens in activated hepatic stellate cells and thioacetamide-induced fibrosis rat model. PHARMACEUTICAL BIOLOGY 2018; 56:632-642. [PMID: 31070527 PMCID: PMC6282452 DOI: 10.1080/13880209.2018.1529801] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/13/2018] [Accepted: 09/19/2018] [Indexed: 06/09/2023]
Abstract
CONTEXT Allium senescens Linn. (Liliaceae) (ASL) has been traditionally used in Korea and other Asian countries for improving digestive and liver functions. OBJECTIVE The anti-hepatofibrosis effect of ASL ethanol extract in cellular and experimental fibrosis rat model was investigated. MATERIALS AND METHODS In vitro cell viability, cell cycle and apoptosis in hepatic stellate cells (HSCs) were studied using MTT assay, flow cytometry and Annexin V-FITC/PI staining. Thioacetamide (TAA; 200 mg/kg, i.p.)-induced liver fibrosis model using Sprague Dawley rats (n = 10) was developed in vivo by injecting TAA twice per week for 13 weeks. ASL (25 and 100 mg/kg) and silymarin (50 mg/kg) were administered through oral gavage 2 times per week from 7th to 13th week. Specific fibrotic-related biomarkers such as aspartate transaminase (AST), alanine transaminase (ALT), glutathione and hydroxyproline levels in serum were analyzed by spectrophotometer using commercial kits. Morphological, histopathological and fibrotic-related gene expression such as TGF-β, Col1α1 and α-SMA in liver tissues was estimated by hematoxylin and eosin staining, Picrosirius red stain and quantitative real-time polymerase chain reaction, respectively. RESULTS ASL (0.1 mg/mL) and silymarin (0.05 mg/mL) treatment induced apoptosis (4.06% and 8.67%) in activated HSC-T6 cells, compared with control group (3.7%). The altered morphology in activated primary HSCs was also restored by ASL (0.1 mg/mL) treatment. Further, ASL (100 and 25 mg/kg) ameliorated the TAA-induced altered fibrotic-related biomarkers, histopathological changes and fibrotic-related gene expression significantly (p < 0.05 ∼ p < 0.001). CONCLUSIONS ASL can potentially be developed as a therapeutic agent in the treatment of hepatic fibrosis.
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Affiliation(s)
- Gwang-Mo Shin
- Department of Applied Life Science, Graduate School of Konkuk University, Chungju-si, Chungbuk, Republic of Korea
| | - Sushruta Koppula
- Department of Biotechnology, College of Biomedical and Health Sciences, Konkuk University, Chungju-si, Chungbuk, Republic of Korea
| | - Yun-Jin Chae
- Department of Applied Life Science, Graduate School of Konkuk University, Chungju-si, Chungbuk, Republic of Korea
| | - Hyun-Su Kim
- Daesowon Food, Chungju-si, Chungbuk, Republic of Korea
| | - Jae-Dong Lee
- Department of Internal Medicine, School of Medicine, Konkuk University, Chungju, Chungbuk, Republic of Korea
| | - Myong-Ki Kim
- Department of Food Science and Engineering, Seowon University, Cheongju, Chingbuk, Republic of Korea
| | - MinDong Song
- Department of Applied Life Science, Graduate School of Konkuk University, Chungju-si, Chungbuk, Republic of Korea
- Department of Biotechnology, College of Biomedical and Health Sciences, Konkuk University, Chungju-si, Chungbuk, Republic of Korea
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26
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Guo Q, Guo J, Chen G, Han Z, Xiao B, Jin R, Liang C, Yang W. Biomarkers associated with binaprofen‑induced liver injury. Mol Med Rep 2018; 18:5076-5086. [PMID: 30320395 DOI: 10.3892/mmr.2018.9549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Accepted: 08/14/2018] [Indexed: 11/06/2022] Open
Abstract
Drug‑induced liver injury (DILI) is a common hepatic disease. The identification of biomarkers for DILI prediction is critical for rational drug use. The aim of the present study was to investigate liver injury caused by binaprofen and identify proteins that may serve as early biomarkers to predict DILI. For in vivo DILI assays, zebrafish were exposed to acetaminophen (APAP) and binaprofen for 12‑96 h before lethal concentration 50 (LC50), histopathological analysis, conventional and non‑conventional biomarker measurements were conducted. In vitro assays were performed in cultured liver cells; after 6‑24 h treatment with APAP and binaprofen the same measurements were conducted as aforementioned. The in vivo assays indicated that the LC50 of APAP was 5.2 mM, whereas the LC50 of binaprofen was 1.2 mM; 12‑48 h post‑treatment, liver cells exhibited mild to moderate vacuolization in a time‑ and concentration‑dependent manner in response to both drugs. During this time, conventional and non‑conventional biomarkers were also altered in a time‑ and concentration‑dependent manner; however, alterations in the levels of non‑conventional biomarkers occurred at an earlier time point compared with conventional biomarkers. The in vitro assays indicated that the half maximal inhibitory concentration (IC50) of APAP was 16.2 mM, whereas the IC50 of binaprofen was 5.3 mM; 12‑48 h post‑treatment, cultured liver cells exhibited mild to moderate swelling in a time‑ and concentration‑dependent manner. Alterations in the levels of conventional and non‑conventional biomarkers were similar to those observed in the in vivo assays. As a non‑steroidal anti‑inflammatory drug, binaprofen exhibited expected levels of liver toxicity in in vitro and in vivo assays, which were similar to APAP. Total bile acid and argininosuccinate lyase were identified as early biomarkers, which could accurately predict onset of binaprofen‑induced liver injury.
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Affiliation(s)
- Qiuping Guo
- Drug Non‑Clinical Evaluation and Research Center of Guangzhou General Pharmaceutical Research Institute, Guangzhou, Guangdong 510240, P.R. China
| | - Jianmin Guo
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510990, P.R. China
| | - Guiying Chen
- Drug Non‑Clinical Evaluation and Research Center of Guangzhou General Pharmaceutical Research Institute, Guangzhou, Guangdong 510240, P.R. China
| | - Zhong Han
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510990, P.R. China
| | - Baiquan Xiao
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510990, P.R. China
| | - Ruomin Jin
- Drug Safety Evaluation Center of Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P.R. China
| | - Chun Liang
- Division of Life Science, Center for Cancer Research, State Key Lab for Molecular Neural Science, Bioengineering Graduate Program, Hong Kong University of Science and Technology, Hong Kong, SAR 999077, P.R. China
| | - Wei Yang
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Institute of Applied Biological Resources, Guangzhou, Guangdong 510990, P.R. China
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27
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Xu B, Zhou NM, Cao WT, Li XJ. Evaluation of elastography combined with serological indexes for hepatic fibrosis in patients with chronic hepatitis B. World J Gastroenterol 2018; 24:4272-4280. [PMID: 30310260 PMCID: PMC6175765 DOI: 10.3748/wjg.v24.i37.4272] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 08/06/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the value of ultrasound elastography combined with serological indexes in diagnosing liver fibrosis and assessing its severity.
METHODS A total of 338 chronic hepatitis B (CHB) patients were divided into a disease group (patients with hepatic fibrosis) and control group (subjects without hepatic fibrosis). The disease group was further divided into S1-S4 according to the degree of fibrosis. Independent risk factors for hepatic fibrosis were analyzed using multivariate logistic regression. The diagnostic values of hepatic fibrosis from different indicators were compared using receiver operating characteristic (ROC) curves. The combination of elastography and serological indexes was explored to assess the severity of hepatic fibrosis.
RESULTS The multivariate logistic regression analysis results revealed that shear wave velocity (SWV), hyaluronic acid (HA), type IV collagen (CIV) and aspartate aminotransferase-to-platelet ratio index (APRI) significantly affected the occurrence of hepatic fibrosis. The ROC curve revealed that the accuracy of the diagnosis of hepatic fibrosis for SWV and HA were 87.3% and 84.8%, respectively. The accuracy of SWV combined with HA was 88.9%. The multiple linear regression analysis revealed that SWV, aspartate aminotransferase (AST)/alanine aminotransferase (ALT), HA, CIV, APRI and fibrosis index based on the 4 factor (FIB-4) were screened as statistically significant independent factors. The established regression equation was: Fibrosis level = -4.046 + 1.024 × SWV + 1.170 × AST/ALT + 0.011 × HA + 0.020 × CIV + 0.719 × APRI + 0.379 × FIB-4.
CONCLUSION SWV combined with serological indexes can improve the accuracy of diagnosis for CHB hepatic fibrosis. Serum indexes can help diagnose the degree of hepatic fibrosis.
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Affiliation(s)
- Bin Xu
- Department of ultrasound, Fudan University affiliated Shanghai fifth people’s hospital, Shanghai 200240, China
| | - Ning-Ming Zhou
- Department of ultrasound, Fudan University affiliated Shanghai fifth people’s hospital, Shanghai 200240, China
| | - Wei-Tian Cao
- Department of ultrasound, Fudan University affiliated Shanghai fifth people’s hospital, Shanghai 200240, China
| | - Xiao-Jing Li
- Department of pathology, Fudan University affiliated Shanghai fifth people’s hospital, Shanghai 200240, China
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28
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Wang B, Sun Y, Zhou J, Wu X, Chen S, Wu S, Liu H, Wang T, Ou X, Jia J, You H. Advanced septa size quantitation determines the evaluation of histological fibrosis outcome in chronic hepatitis B patients. Mod Pathol 2018; 31:1567-1577. [PMID: 29785021 DOI: 10.1038/s41379-018-0059-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 02/08/2023]
Abstract
Hepatitis B (HBV)-related fibrosis can be reversed after effective antiviral therapy. However, detailed changes of collagen characteristics during fibrosis regression remain unclear. Paired biopsy samples obtained from chronic hepatitis B patients were imaged with second harmonic generation/two photon excitation fluorescence (SHG/TPEF)-based microscopy to identify and quantify collagen features in portal, septal, and fibrillar areas. According to the changes of Ishak stage and qFibrosis score, a total of 117 patients with paired liver biopsy appeared to have four different outcomes after 78-week antiviral therapy: fast reverse (9%), reverse (63%), stable (15%), or progress (13%) on fibrosis. Among 71 collagen features identified by SHG/TPEF analysis, the most prominent fibrosis reversion occurred in the "septal" area, followed by the "fibrillar" area, but not in the "portal" area (P < 0.001). Further analysis of 1060 individual septa identified four parameters that correlated with fibrosis reversion: average width, maximum width, number of fibers, and number of cross-link fibers (P < 0.001). Average septal width was independently associated with regressive septa (odds ratio (OR) = 5.22, 95% confidence interval (CI): 4.17-6.53; P < 0.001), with an AUROC of 0.96 (95% CI: 0.95-0.97). The threshold used to discriminate reversal of fibrosis was 30 μm. In conclusion, septal collagen was determined to be the most useful histological feature for evaluation of dynamic changes in liver fibrosis. Septal width was the most predictive indicator of prognosis in liver fibrosis.
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Affiliation(s)
- Bingqiong Wang
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yameng Sun
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jialing Zhou
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xiaoning Wu
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Shuyan Chen
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Shanshan Wu
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hui Liu
- Department Pathology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Tailing Wang
- Department Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Xiaojuan Ou
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jidong Jia
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hong You
- Liver Research Center, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center for Digestive Disease, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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Pan JJ, Bao F, Du E, Skillin C, Frenette CT, Waalen J, Alaparthi L, Goodman ZD, Pockros PJ. Morphometry Confirms Fibrosis Regression From Sustained Virologic Response to Direct-Acting Antivirals for Hepatitis C. Hepatol Commun 2018; 2:1320-1330. [PMID: 30411079 PMCID: PMC6211322 DOI: 10.1002/hep4.1228] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/04/2018] [Indexed: 12/15/2022] Open
Abstract
Sustained virologic response (SVR) after direct‐acting antiviral (DAA) therapy for chronic hepatitis C results in significant decreases in liver stiffness measured by transient elastography (TE). The aim of this study was to clarify if TE can guide post‐SVR management in patients with advanced fibrosis or cirrhosis prior to treatment as current guidelines are unclear on the role of TE after SVR. In total, 84 patients with hepatitis C virus and advanced fibrosis or cirrhosis and from a single center underwent DAA treatment and achieved SVR. Overall, 62% had improved liver stiffness that was consistent with regression of at least one stage of fibrosis. In the cirrhosis group, 48% showed fibrosis regression by at least two stages by TE (<9.5 kPa). In the F3 fibrosis group, 39% regressed by at least two stages (<7 kPa). The median time from SVR to regression by TE was 1 year. Fifteen patients with liver biopsies prior to SVR underwent a biopsy after SVR; 13 of these patients had improved liver stiffness (to <9.5 kPa). The post‐SVR liver biopsies of only 4 patients showed F1‐F2 while 11 patients showed F3‐F4; however, morphometry of the first 11 biopsied patients revealed that 10 patients had an average 46% decrease in collagen content. Conclusion: This is the first DAA study that also has paired liver biopsies showing fibrosis regression. After SVR is achieved, improvements in liver stiffness measured by TE are seen in a majority of patients with advanced fibrosis/cirrhosis within 2 years. TE improvements are overstated when compared to histologic staging but confirmed with morphometric analysis. It is unclear whether TE following SVR can reliably predict when patients no longer require advanced fibrosis/cirrhosis monitoring after SVR.
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Affiliation(s)
- Jason J Pan
- Division of Gastroenterology/Hepatology Scripps Clinic La Jolla CA
| | - Fei Bao
- Department of Pathology La Jolla CA
| | - Emma Du
- Department of Pathology La Jolla CA
| | - Chase Skillin
- Division of Gastroenterology/Hepatology Scripps Clinic La Jolla CA
| | - Catherine T Frenette
- Division of Gastroenterology/Hepatology Scripps Clinic La Jolla CA.,Division of Organ Transplantation Scripps Green Hospital and Scripps Clinic La Jolla CA
| | | | | | | | - Paul J Pockros
- Division of Gastroenterology/Hepatology Scripps Clinic La Jolla CA.,The Scripps Research Institute La Jolla CA.,The Scripps Translational Science Institute La Jolla CA
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30
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Matsumoto M, Wakiyama S, Shiba H, Haruki K, Futagawa Y, Ishida Y, Misawa T, Yanaga K. Usefulness of aspartate aminotransferase to platelet ratio index as a prognostic factor following hepatic resection for hepatocellular carcinoma. Mol Clin Oncol 2018; 9:369-376. [PMID: 30214725 PMCID: PMC6125707 DOI: 10.3892/mco.2018.1692] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 06/12/2018] [Indexed: 01/05/2023] Open
Abstract
Liver function is a major prognostic factor following hepatic resection for hepatocellular carcinoma (HCC), which is well correlated with the degree of fibrosis. On the other hand, the presence of liver cirrhosis itself leads to a higher incidence of HCC than chronic hepatitis. Therefore, preoperative noninvasive markers of fibrosis are important for the assessment of prognosis for treatment of HCC. The present study aimed to analyze whether aspartate aminotransferase to platelet ratio index (APRI) could predict prognosis following hepatic resection for HCC. The subjects were 162 patients who underwent hepatic resection for HCC between January 2000 and December 2011. The relationship between APRI and disease-free and overall survival were retrospectively investigated. In multivariate analysis, indocyanine green at 15 min (ICG-R15) ≥15% (P=0.0306), APRI ≥0.45 (P=0.0184), perioperative blood transfusion of red cell concentrates (RCC; P=0.0034) and TNM stage II, III or IV (P=0.0184) were significant predictors in disease-free survival. For overall survival, ICG-R15 ≥15% (P=0.0454), APRI ≥0.45 (P=0.0417), perioperative blood transfusion of RCC (P=0.0036) and TNM stage II, III or IV (P=0.0033) were significant predictors. In addition, higher APRI values were positively correlated with hepatitis C virus infection and preoperative liver function. In conclusion, APRI is an independent risk factor for disease-free and overall survival following hepatic resection for HCC.
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Affiliation(s)
- Michinori Matsumoto
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Shigeki Wakiyama
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hiroaki Shiba
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Koichiro Haruki
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yasuro Futagawa
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yuichi Ishida
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Takeyuki Misawa
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Katsuhiko Yanaga
- Department of Surgery, The Jikei University School of Medicine, Tokyo 105-8461, Japan
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31
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Qin L, Qin J, Zhen X, Yang Q, Huang L. Curcumin protects against hepatic stellate cells activation and migration by inhibiting the CXCL12/CXCR4 biological axis in liver fibrosis:A study in vitro and in vivo. Biomed Pharmacother 2018. [PMID: 29518606 DOI: 10.1016/j.biopha.2018.02.091] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The C-X-C motif chemokine 12/C-X-C chemokine receptor type 4 (CXCL12/ CXCR4) biological axis plays an important role in the pathogenesis of liver fibrosis. Curcumin is known to have an anti-fibrosis effect, but the specific mechanism needs to be elucidated. There is currently no evidence illustrating a connection between curcumin and the CXCL12/CXCR4 axis in liver fibrosis. Here, we investigated the contribution of curcumin on CXCL12/ CXCR4 biological axis in liver fibrosis. Our results showed that curcumin remarkably improved hepatic function and liver fibrosis, and the effects are similar as silymarin. The alleviation of liver fibrosis with curcumin treatment was associated with a reduction of CXCL12, CXCR4, α-SMA and RhoA. In addition, curcumin markedly inhibited the proliferation and migration of HSC-T6 cells. This study indicates that curcumin could protect against hepatic stellate cells activation and migration by inhibiting the CXCL12/CXCR4 biological axis in liver fibrosis.
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Affiliation(s)
- Lifeng Qin
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Jinmei Qin
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Xiumei Zhen
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Qian Yang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China
| | - Liyi Huang
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, 530021, China.
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32
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Feng R, Yuan X, Shao C, Ding H, Liebe R, Weng HL. Are we any closer to treating liver fibrosis (and if no, why not)? J Dig Dis 2018; 19:118-126. [PMID: 29389083 DOI: 10.1111/1751-2980.12584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/26/2018] [Indexed: 12/11/2022]
Abstract
This review provides a personal view on anti-fibrosis therapy in the liver. The worst clinical consequence of liver fibrosis is the development of liver cirrhosis and portal hypertension. Etiology is a decisive factor which determines patterns of fibrous septa and subsequent vascular remodeling, which is essential for the development of portal hypertension. Removing or controlling the disease-causing agent, i.e. anti-viral treatment for hepatitis, is the essential first step for treating chronic liver diseases and can reverse fibrosis in some settings. However, removing etiology is not always sufficient to prevent fibrosis from progressing towards cirrhosis and portal hypertension. In liver diseases such as severe alcoholic hepatitis and massive parenchymal loss, the formation of vascular anastomoses between portal to central veins based on bridging fibrosis results in cirrhosis and portal hypertension. For these patients, anti-fibrotic treatment is crucial and urgent. Unfortunately, a lack of understanding how fibrosis contributes to vascular remodeling caused by and combined with a lack of suitable experimental models that recapitulate human liver diseases, has hampered the development of successful anti-fibrotic drugs for clinical use to date.
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Affiliation(s)
- Rilu Feng
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Xiaodong Yuan
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Chen Shao
- Department of Pathology, Beijing You'an Hospital, Affiliated with Capital Medical University, Beijing, China
| | - Huiguo Ding
- Department of Gastroenterology and Hepatology, Beijing You'an Hospital, Affiliated with Capital Medical University, Beijing, China
| | - Roman Liebe
- Department of Medicine II, Saarland University Medical Center, Homburg/Saar, Germany
| | - Hong-Lei Weng
- Department of Medicine II, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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33
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Quantitative assessment of liver fibrosis (qFibrosis) reveals precise outcomes in Ishak "stable" patients on anti-HBV therapy. Sci Rep 2018; 8:2989. [PMID: 29445243 PMCID: PMC5813020 DOI: 10.1038/s41598-018-21179-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 01/29/2018] [Indexed: 12/16/2022] Open
Abstract
Current widely used semiquantitative histological assessment methods are insensitive to identify subtle changes of liver fibrosis. Therefore, to precisely assess therapeutic efficacy on chronic hepatitis B (CHB), we explored the utility of qFibrosis (a fully-quantitative morphometric method employing second harmonic generation/two photon excitation fluorescence) in liver fibrosis evaluation. Fibrosis changes were evaluated by Ishak fibrosis scoring and qFibrosis in CHB patients with paired liver biopsies before and after 78 weeks' antiviral therapy. A total of 162 patients with qualified paired biopsies were enrolled. Ishak fibrosis scoring revealed that 42.6% (69/162) of the patients achieved fibrosis regression (≥1-point decrease), 51.9% (84/162) remained stable, and 5.5% (9/162) showed progression (≥1-point increase). qFibrosis showed similar trends in the groups of regression and progression patients as evaluated by Ishak. However, in Ishak stable patients, qFibrosis revealed hitherto undetected changes, allowing for further subcategorization into regression ("Regression by qFibrosis"; 40/84, 47.6%), stable (29/84, 34.5%), and progression ("Progression by qFibrosis"; 15/84, 17.9%) groups. These newly fine-tuned categories were supported by changes of morphological parameters of fibrosis, collagen percentage area, and liver stiffness measurements. In conclusion, qFibrosis can be used to quantitatively identify subtle changes of liver fibrosis in CHB patients after antiviral therapy.
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34
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Wen X, Han X, Wang Y, Fan S, Zhang Z, Wu D, Lu J, Zheng Y. Retracted
: Effects of S100A12 gene silencing on serum levels of anti‐inflammatory/pro‐inflammatory cytokines in septic rats through the ERK signaling pathway. J Cell Biochem 2018; 119:4038-4049. [DOI: 10.1002/jcb.26568] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/01/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Xin Wen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Xin‐Rui Han
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Yong‐Jian Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Shao‐Hua Fan
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Zi‐Feng Zhang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Dong‐Mei Wu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Jun Lu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
| | - Yuan‐Lin Zheng
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China
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35
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Eulenberg VM, Lidbury JA. Hepatic Fibrosis in Dogs. J Vet Intern Med 2017; 32:26-41. [PMID: 29194760 PMCID: PMC5787209 DOI: 10.1111/jvim.14891] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/17/2017] [Accepted: 10/31/2017] [Indexed: 12/19/2022] Open
Abstract
Hepatic fibrosis is commonly diagnosed in dogs, often as a sequela to chronic hepatitis (CH). The development of fibrosis is a crucial event in the progression of hepatic disease that is of prognostic value. The pathophysiology of hepatic fibrosis in human patients and rodent models has been studied extensively. Although less is known about this process in dogs, evidence suggests that fibrogenic mechanisms are similar between species and that activation of hepatic stellate cells is a key step. Diagnosis and staging of hepatic fibrosis in dogs requires histopathological examination of a liver biopsy specimen. However, performing a liver biopsy is invasive and assessment of fibrotic stage is complicated by the absence of a universally accepted staging scheme in veterinary medicine. Serum biomarkers that can discriminate among different fibrosis stages are used in human patients, but such markers must be more completely evaluated in dogs before clinical use. When successful treatment of its underlying cause is feasible, reversal of hepatic fibrosis has been shown to be possible in rodent models and human patients. Reversal of fibrosis has not been well documented in dogs, but successful treatment of CH is possible. In human medicine, better understanding of the pathomechanisms of hepatic fibrosis is leading to the development of novel treatment strategies. In time, these may be applied to dogs. This article comparatively reviews the pathogenesis of hepatic fibrosis, its diagnosis, and its treatment in dogs.
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Affiliation(s)
- V M Eulenberg
- Gastrointestinal Laboratory, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX
| | - J A Lidbury
- Gastrointestinal Laboratory, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX
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36
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Mueller S, Nahon P, Rausch V, Peccerella T, Silva I, Yagmur E, Straub BK, Lackner C, Seitz HK, Rufat P, Sutton A, Bantel H, Longerich T. Caspase-cleaved keratin-18 fragments increase during alcohol withdrawal and predict liver-related death in patients with alcoholic liver disease. Hepatology 2017; 66:96-107. [PMID: 28170108 DOI: 10.1002/hep.29099] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 01/30/2017] [Indexed: 12/24/2022]
Abstract
UNLABELLED Noninvasive assessment of disease activity in patients with nonalcoholic fatty liver disease (NAFLD) and alcoholic liver disease (ALD) is still unsettled, but essential for the evaluation of disease progression. We here studied the association of total (M65) and caspase-cleaved (M30) serum keratin-18 fragments (n = 204) with histological parameters (n = 106) in heavy drinkers primarily admitted for alcohol withdrawal before and after alcohol detoxification. An age-, sex-, and fibrosis-stage matched NAFLD cohort (n = 30) was used for comparison. The prognostic value of M30 and M65 levels were assessed in an additional prospectively followed-up cohort of 230 patients with alcoholic cirrhosis (AC) using competing risk analyses. Among the histological parameters, both M30/65 correlated significantly and better than any other serum marker with apoptosis and liver damage, such as ballooning (r = 0.65; P < 0.001), followed by lobular inflammation (0.48; P < 0.001), steatosis (0.46; P < 0.001), but less with fibrosis (0.24; P < 0.001). Area under the receiver operating characteristics curves to detect ballooning, steatosis, or steatohepatitis (SH) were slightly better for M30 (P < 0.005). Optimal M30 cut-off values for mild and severe ballooning were 330 and 420 U/L, and 290 and 330 U/L for SH grades 1 and 2. No significant differences of M30/65 were found between the matched NAFLD and ALD cohort. In contrast to aspartate-amino-transferase and M65, M30 levels increased significantly from 391 to 518 U/L during alcohol detoxification. Moreover, levels of M30 and M65 predicted non-hepatocellular carcinoma liver-related mortality in patients with AC during a mean observation interval of 67.2 months. CONCLUSION Our data suggest M30 as highly specific marker of liver apoptosis both in ALD and NAFLD. In addition, hepatocellular apoptosis, as determined by M30 levels, occurs during alcohol withdrawal, and survival data point toward a novel underestimated role of apoptosis in patients with ALD. (Hepatology 2017;66:96-107).
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Affiliation(s)
- Sebastian Mueller
- Salem Medical Center and Center for Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Pierre Nahon
- AP-HP, Hôpital Jean Verdier, Service d'Hépatologie, Bondy, France.,Université Paris 13, Sorbonne Paris Cité, "Equipe labellisée Ligue Contre le Cancer", F-93206, Saint-Denis, France.,Inserm, UMR-1162, "Génomique fonctionnelle des tumeur solides", Paris, France
| | - Vanessa Rausch
- Salem Medical Center and Center for Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Tessa Peccerella
- Salem Medical Center and Center for Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Ines Silva
- Salem Medical Center and Center for Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Eray Yagmur
- Laboratory Diagnostics Center, RWTH-University Hospital Aachen, Aachen and Medical Care Center, Dr. Stein and colleagues, Mönchengladbach, Germany
| | - Beate K Straub
- Institute for Pathology, Universities of Mainz and Heidelberg, Germany
| | - Carolin Lackner
- Institute for Pathology, Medical University Graz, Graz, Austria
| | - Helmut K Seitz
- Salem Medical Center and Center for Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Pierre Rufat
- APHP, Biostatistics, Pitié-Salepêtrière Hospital, Paris, France
| | - Angela Sutton
- CRB (liver disease biobank) Groupe Hospitalier Paris Seine-Saint-Denis BB-0033-00027, Paris, France.,APHP, Biochemistry Unit, Jean Verdier Hospital, Bondy, France.,INSERM U1148, and Paris 13 University, Bobigny, France
| | - Heike Bantel
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School, Hannover, Germany
| | - Thomas Longerich
- Institute of Pathology, RWTH-University Hospital Aachen, Aachen, Germany
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Sun Y, Zhou J, Wang L, Wu X, Chen Y, Piao H, Lu L, Jiang W, Xu Y, Feng B, Nan Y, Xie W, Chen G, Zheng H, Li H, Ding H, Liu H, Lv F, Shao C, Wang T, Ou X, Wang B, Chen S, Wee A, Theise ND, You H, Jia J. New classification of liver biopsy assessment for fibrosis in chronic hepatitis B patients before and after treatment. Hepatology 2017; 65:1438-1450. [PMID: 28027574 DOI: 10.1002/hep.29009] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 12/15/2016] [Accepted: 12/20/2016] [Indexed: 12/11/2022]
Abstract
UNLABELLED Liver fibrosis is the net result of dynamic changes between fibrogenesis and fibrolysis. Evidence has shown that antiviral therapy can reverse liver fibrosis or even early cirrhosis caused by hepatitis B virus. However, current evaluation systems mainly focus on the severity of, but not the dynamic changes in, fibrosis. Here, we propose a new classification to evaluate the dynamic changes in the quality of fibrosis, namely: predominantly progressive (thick/broad/loose/pale septa with inflammation); predominately regressive (delicate/thin/dense/splitting septa); and indeterminate, which displayed an overall balance between progressive and regressive scarring. Then, we used this classification to evaluate 71 paired liver biopsies of chronic hepatitis B patients before and after entecavir-based therapy for 78 weeks. Progressive, indeterminate, and regressive were observed in 58%, 29%, and 13% of patients before treatment versus in 11%, 11%, and 78% after treatment. Of the 55 patients who showed predominantly regressive changes on posttreatment liver biopsy, 29 cases (53%) had fibrosis improvement of at least one Ishak stage, and, more interestingly, 25 cases (45%) had significant improvement in terms of Laennec substage, collagen percentage area, and liver stiffness despite remaining in the same Ishak stage. CONCLUSION This new classification highlights the importance of assessing and identifying the dynamic changes in the quality of fibrosis, especially relevant in the era of antiviral therapy.(Hepatology 2017;65:1438-1450).
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Affiliation(s)
- Yameng Sun
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Jialing Zhou
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Lin Wang
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Xiaoning Wu
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Yongpeng Chen
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hongxin Piao
- Infectious Department, Affiliated Hospital of Yanbian University, Yanji, China
| | - Lungen Lu
- Department of Gastroenterology and Hepatology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Jiang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Youqing Xu
- Department of Digestive System, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Bo Feng
- Hepatology Institute, Peking University People's Hospital, Beijing, China
| | - Yuemin Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Wen Xie
- Center of Liver Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Guofeng Chen
- Second Liver Cirrhosis Diagnosis and Treatment Center, 302 Military Hospital of China, Beijing, China
| | - Huanwei Zheng
- Department of Infectious Disease, the Fifth Hospital of Shijiazhuang City, Shijiazhuang, China
| | - Hai Li
- Department of Hepatopancreatobiliary and Splenic Medicine, Affiliated Hospital, Logistics University of People's Armed Police Force, Tianjin, China
| | - Huiguo Ding
- Department of Gastroenterology and Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Hui Liu
- Department of Pathology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Fudong Lv
- Department of Pathology, Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Chen Shao
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Tailing Wang
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Xiaojuan Ou
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Bingqiong Wang
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Shuyan Chen
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Aileen Wee
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, National University Hospital, Singapore, Singapore
| | - Neil D Theise
- Departments of Pathology and Medicine (Division of Digestive Diseases), Mount Sinai Beth Israel Medical Center, New York, NY
| | - Hong You
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Jidong Jia
- Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Beijing, China
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38
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Rausch V, Peccerella T, Lackner C, Yagmur E, Seitz HK, Longerich T, Mueller S. Primary liver injury and delayed resolution of liver stiffness after alcohol detoxification in heavy drinkers with the PNPLA3 variant I148M. World J Hepatol 2016; 8:1547-1556. [PMID: 28050235 PMCID: PMC5165268 DOI: 10.4254/wjh.v8.i35.1547] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 07/15/2016] [Accepted: 09/18/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the influence of PNPLA3 genotype in heavy drinkers on serum markers and liver stiffness (LS) during alcohol withdrawal and its association with histology.
METHODS Caucasian heavy drinkers (n = 521) with a mean alcohol consumption of 192.1 g/d (median alcohol consumption: 169.0 g/d; 95%CI: 179.0-203.3) were enrolled at the Salem Medical Center, University of Heidelberg. LS was measured by transient elastography (Fibroscan, Echosens SA, Paris, France). LS and serum markers were prospectively studied in these patients with all stages of alcoholic liver disease (steatosis, steatohepatitis, fibrosis) prior and after alcohol detoxification with a mean observation interval of 6.2 ± 3.2 d. A liver biopsy with histological analysis including the Kleiner score was obtained in 80 patients.
RESULTS The PNPLA3 rs738409 genotype distribution for CC, CG and GG was 39.2%, 52.6% and 8.2%. GG genotype primarily correlated with histological steatohepatitis (r = 0.404, P < 0.005), ballooning (r = 0.319, P < 0.005) and less with steatosis (r = 0.264, P < 0.05). Mean LS was lowest in CC carriers (13.1 kPa) as compared to CG and GG carriers (17.6 and 17.2 kPa). Notably, LS primarily correlated with fibrosis stage (r = 0.828, P < 0.005), ballooning (r = 0.516, P < 0.005), steatohepatitis (r = 0.319, P < 0.005) but not with steatosis. After alcohol withdrawal, LS did not change in CC carriers, significantly decreased in CG-carriers from 17.6 to 12.7 kPa but to a lesser extent in GG carriers from 17.6 to 14.5 kPa. This was due to prolonged resolution of inflammation with significantly elevated aspartate transaminase levels after alcohol withdrawal in GG carriers. Non-invasive fibrosis assessment by LS in all patients showed a significantly higher F0 rate as compared to the biopsy cohort (47% vs 6%) with 3.8% more CC carriers while 3.7% less were seen in the F4 cirrhosis group. Thus, about 20% of patients with alcoholic liver cirrhosis would be attributable to PNPLA3 G variants. The OR to develop cirrhosis corrected for age, gender and body mass index was 1.295 (95%CI: 0.787-2.131) for CG + GG carriers.
CONCLUSION In heavy drinkers, PNPLA3 GG primarily correlates with ballooning/steatohepatitis but not steatosis resulting in a delayed inflammation-associated resolution of LS. Consequently, sustained ballooning-associated LS elevation seems to be a potential risk factor for fibrosis progression in PNPLA3 GG carriers.
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Varma S, Ambroise J, Komuta M, Latinne D, Baldin P, Reding R, Smets F, Stephenne X, Sokal EM. Progressive Fibrosis Is Driven by Genetic Predisposition, Allo-immunity, and Inflammation in Pediatric Liver Transplant Recipients. EBioMedicine 2016; 9:346-355. [PMID: 27333038 PMCID: PMC4972529 DOI: 10.1016/j.ebiom.2016.05.040] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/22/2016] [Accepted: 05/30/2016] [Indexed: 12/17/2022] Open
Abstract
Aim To determine predisposing factors of idiopathic allograft fibrosis among pediatric liver transplant recipients. Background Protocol biopsies (PB) from stable liver transplant (LT) recipient children frequently exhibit idiopathic fibrosis. The relation between allograft inflammation, humoral immune response and fibrosis is uncertain. Also the role of HLA-DRB1 genotype has not been evaluated, though it's associated with fibrosis in autoimmune hepatitis. Patients and Methods This observational study, included 89 stable LT recipient transplanted between 2004–2012 with mean follow-up of 4.3 years, 281 serial PBs (3.1 biopsy/child) and human leukocyte antigen (HLA) antibody data. PBs were taken 1–2, 2–3, 3–5, 5–7, and 7–10 years post-LT, and evaluated for inflammation and fibrosis using liver allograft fibrosis score (LAFSc). The evolution of fibrosis, inflammation and related predisposing factors were analysed. Findings HLA-DRB1*03/04 allele and Class II DSA were significantly associated with portal fibrosis (p = 0.03; p = 0.03, respectively). Portal inflammation was predisposed by Class II DSA (p = 0.02) and non-HLA antibody presence (p = 0.01). Non-portal fibrosis wasn't predisposed by inflammation. Lobular inflammation was associated with non-HLA antibodies. Interpretation We conclusively demonstrated that allograft inflammation results in fibrosis and is associated with post-LT Class II DSA and non-HLA antibodies. The HLA-DRB1*03/04 allele caused genetic predisposition for fibrosis. Funding None. There is a link between genetic predisposition, alloimmune antibodies, allograft inflammation and fibrosis Description of allograft natural history by assessing evolution of inflammation, fibrosis in different histological zones Allograft inflammation results in allograft fibrosis and is associated with post-LT Class II DSA and non-HLA antibodies The HLA-DRB1*03/04 allele causes genetic predisposition for fibrosis
Among pediatric liver transplant recipients, the graft longevity is expected to parallel the life expectancy of the recipient. A major impediment in this is progressive allograft fibrosis, the cause of which is not well understood. If this pathogenesis could be found, then interventions to arrest the progressive fibrosis could be explored. In our 89 patients for whom we did periodic surveillance liver biopsies, inflammation was found to precede the fibrosis and associated with presence of specific antibodies. Certain genetic predisposition for higher fibrogenesis was also found, thus establishing a link between genetic predisposition, alloimmune response, inflammation, and allograft fibrosis.
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Affiliation(s)
- S Varma
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Department of Pediatrics, Service of pediatric gastroenterology and hepatology, Brussels, Belgium.
| | - J Ambroise
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Centre for applied molecular technologies (CTMA), Institute of experimental and clinical research (IREC), Brussels, Belgium.
| | - M Komuta
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Service of anatomical pathology, Brussels, Belgium.
| | - D Latinne
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Department of clinical biology, Brussels, Belgium.
| | - P Baldin
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Service of anatomical pathology, Brussels, Belgium.
| | - R Reding
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Service of pediatric surgery and transplantation, Brussels, Belgium.
| | - F Smets
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Department of Pediatrics, Service of pediatric gastroenterology and hepatology, Brussels, Belgium.
| | - X Stephenne
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Department of Pediatrics, Service of pediatric gastroenterology and hepatology, Brussels, Belgium.
| | - E M Sokal
- Université Catholique de Louvain, Cliniques Universitaires St Luc, Department of Pediatrics, Service of pediatric gastroenterology and hepatology, Brussels, Belgium.
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Hanquinet S, Courvoisier DS, Rougemont AL, Wildhaber BE, Merlini L, McLin VA, Anooshiravani M. Acoustic radiation force impulse sonography in assessing children with biliary atresia for liver transplantation. Pediatr Radiol 2016; 46:1011-6. [PMID: 26939975 DOI: 10.1007/s00247-016-3565-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/05/2016] [Accepted: 01/26/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Children with biliary atresia are prone to developing progressive hepatic fibrosis and biliary cirrhosis following the Kasai operation. The only treatment is liver transplantation. OBJECTIVE To assess liver fibrosis by acoustic radiation force impulse elastography (ARFI) in children who had Kasai operation, with the goal of identifying an ARFI value cut-off for children requiring liver transplantation. MATERIALS AND METHODS Of the 32 post-Kasai children included, 19 were transplanted or listed for transplantation (group A), while 13 were not on the list during their follow-up (group B). We recorded biopsies, blood samples and ARFI values over time, including at Kasai operation and at transplantation. We estimated an association between groups and continuous variables using generalized estimating equations, and we compared categorical variables using the Fisher exact test. RESULTS Portal hypertension signs were similar in both groups, whereas ARFI values were higher in group A (mean±standard deviation=3.3±1.2 m/s) than in group B (2.0±0.7 m/s; P=.0003). Eighteen of 19 (94.7%) children in group A and 6/13 (46.2%) children in group B presented with two consecutive ARFI values ≥2 m/s (sensitivity=7%, specificity=53.8%; P=0.003). CONCLUSION We found that children who were transplanted had two consecutive ARFI values ≥2 m/s during follow-up. ARFI for evaluation of post-Kasai liver fibrosis may assist the long-term assessment of biliary atresia and may even guide treatment decisions.
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Affiliation(s)
- Sylviane Hanquinet
- Department of Pediatric Radiology, Children's University Hospital of Geneva, 6 rue Willy Donzé, Ch 1211, Genève 14, Switzerland.
| | | | - Anne-Laure Rougemont
- Division of Clinical Pathology, University Hospital of Geneva, Geneva, Switzerland
| | - Barbara E Wildhaber
- Department of Pediatric Surgery, Children's University Hospital of Geneva, Geneva, Switzerland
| | - Laura Merlini
- Department of Pediatric Radiology, Children's University Hospital of Geneva, 6 rue Willy Donzé, Ch 1211, Genève 14, Switzerland
| | - Valérie A McLin
- Department of Pediatric Gastroenterology, Children's University Hospital of Geneva, Geneva, Switzerland
| | - Mehrak Anooshiravani
- Department of Pediatric Radiology, Children's University Hospital of Geneva, 6 rue Willy Donzé, Ch 1211, Genève 14, Switzerland
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Early type I collagen deposition is associated with prognosis in biliary atresia. J Pediatr Surg 2016; 51:379-85. [PMID: 26452701 DOI: 10.1016/j.jpedsurg.2015.08.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/13/2015] [Accepted: 08/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Biliary atresia (BA) is a cholestatic liver disease of children that progresses to hepatic fibrosis. BA is the main indication of pediatric liver transplantation (LTx). Histopathological markers in liver biopsies could be useful for predicting progression to end-stage disease. OBJECTIVE To establish histopathological or immunohistochemical markers in liver biopsies of BA patients and correlate those markers with prognosis. METHOD Histological analysis of biliary alterations and morphometric assessment of liver fibrosis were performed, in addition to indirect immunofluorescence assays (IF) for type I, III, IV and V collagens in initial and final liver biopsies of 36 patients with BA who underwent Kasai hepatoportoenterostomy (KPE) and LTx in the last 20years at a single center. RESULTS Histopathological markers had no correlation with evolutive time until LTx. The perisinusoidal deposition of type III and V collagens was more prominent in the initial biopsies (p<0.01), whereas deposition of type I and IV collagens indicated progression (p<0.01). Patients with large amounts of perisinusoidal type I collagen in the initial biopsies had worse progression time curves until LTx (p=0.04). CONCLUSION Morphometric assessment of perisinusoidal deposition of type I collagen by IF in the initial biopsy can correlate with progression time to LTx in post-surgical BA.
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Plumbagin Ameliorates CCl 4 -Induced Hepatic Fibrosis in Rats via the Epidermal Growth Factor Receptor Signaling Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:645727. [PMID: 26550019 PMCID: PMC4624924 DOI: 10.1155/2015/645727] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 12/13/2022]
Abstract
Epidermal growth factor (EGF) and its signaling molecules, EGFreceptor (EGFR) and signal transducer and activator of transcription factor 3 (STAT3), have been considered to play a role in liver fibrosis and cirrhosis. Plumbagin (PL) is an extracted component from the plant and has been used to treat different kinds of cancer. However, its role in regulation of EGFR and STAT3 during liver fibrosis has not been investigated. In this study, the effects of PL on the regulation of EGFR and STAT3 were investigated in carbon tetrachloride (CCl4) induced liver fibrosis and hepatic stellate cells (HSC-T6). PL significantly attenuated liver injury and fibrosis in CCl4 treated rats. At concentrations of 2 to 6 μM, PL did not induce significant cytotoxicity of HSC-T6 cells. Moreover, PL reduced phosphorylation of EGFR and STAT3 in both fibrotic liver and heparin-binding EGF-like growth factor (HB-EGF) treated HSC-T6 cells. Furthermore, PL reduced the expression of α-SMA, EGFR, and STAT3 in both fibrotic liver and HB-EGF treated HSC-T6 cells. In conclusion, plumbagin could ameliorate the development of hepatic fibrosis through its downregulation of EGFR and STAT3 in the liver, especially in hepatic stellate cells.
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Hanquinet S, Courvoisier DS, Rougemont AL, Dhouib A, Rubbia-Brandt L, Wildhaber BE, Merlini L, McLin VA, Anooshiravani M. Contribution of acoustic radiation force impulse (ARFI) elastography to the ultrasound diagnosis of biliary atresia. Pediatr Radiol 2015; 45:1489-95. [PMID: 25943691 DOI: 10.1007/s00247-015-3352-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 04/01/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Children with biliary atresia rapidly develop liver fibrosis secondary to inflammatory destruction of the biliary tract. Noninvasive detection of liver fibrosis in neonatal/infantile cholestasis is an additional criterion for the diagnosis of biliary atresia, leading to prompt surgical exploration. OBJECTIVE To assess the value of US with acoustic radiation force impulse (ARFI) elastography to detect biliary atresia in the workup of neonatal/infantile cholestasis. MATERIALS AND METHODS In this retrospective study, 20 children with cholestasis suspected of having biliary atresia were investigated by US and ARFI. We evaluated the association between US findings and the diagnosis of biliary atresia and with two scores of liver fibrosis obtained from liver biopsy. RESULTS In univariate analyses, gallbladder size, triangular cord sign, spleen size and ARFI values were found to be associated with biliary atresia, though only the triangular cord sign remained significant when elevated gamma glutamyltransferase (GGT) was included as a predictor. In contrast, spleen size and ARFI correlated with the degree of liver fibrosis on biopsy (r > 0.70, P < 0.001), which remained significant when gamma glutamyltransferase elevation was included as a predictor. CONCLUSION The addition of ARFI to a standard abdominal US in the initial workup of the neonate with possible infantile cholestasis can provide reliable information on liver fibrosis and help in the diagnosis of biliary atresia.
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Affiliation(s)
- Sylviane Hanquinet
- Department of Pediatric Radiology, University Children's Hospital, 6 rue Willy Donzé, Ch 1211, Geneva 14, Switzerland,
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Ding H, Ma JJ, Wang WP, Zeng WJ, Jiang T, Huang BJ, Chen SY. Assessment of liver fibrosis: the relationship between point shear wave elastography and quantitative histological analysis. J Gastroenterol Hepatol 2015; 30:553-8. [PMID: 25250854 DOI: 10.1111/jgh.12789] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/21/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIM Traditional pathological scoring systems for liver fibrosis progression are predominantly based on the description of architectural changes with no consideration of the amount of collagen fiber deposition. Our purpose was to explore a true histological standard in accordance with the liver stiffness measured by point shear wave elastography (PSWE) in patients with chronic hepatitis B. METHODS A total of 78 patients with liver neoplasms underwent liver stiffness measurements with PSWE as well as biochemical investigations within 3 days before partial hepatectomy. One tissue section of the liver specimens was stained with HE trichrome and evaluated traditionally with the Scheuer scoring system. The other tissue section was stained with picroSirius red and was evaluated according to the semiquantitative Chevallier et al. scoring system. In addition, this second tissue section was evaluated for the collagen proportionate area (CPA) with computer-assisted digital image analysis. The reproducibility of PSWE technology was explored through the intra-class correlation coefficient of a reliability analysis. RESULTS The PSWE technology revealed good reproducibility in liver stiffness measurements, and the PSWE values increased with the pathological severity of liver fibrosis on both the Scheuer scoring system and the semiquantitative Chevallier et al. scoring system. PSWE values exhibited more reasonable relationships with CPA (r = 0.628, P = 0.00 < 0.05) than with the Scheuer scoring system (r = 0.473, P = 0.00 < 0.05) or the Chevallier et al. semiquantitative scoring system (r = 0.487, P = 0.00 < 0.05). CONCLUSION CPA is a better pathological parameter than traditional semiquantitative scoring systems in accordance with liver stiffness measured by PSWE technology.
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Affiliation(s)
- Hong Ding
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
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Li W, Zhu C, Li Y, Wu Q, Gao R. Mest attenuates CCl4-induced liver fibrosis in rats by inhibiting the Wnt/β-catenin signaling pathway. Gut Liver 2014; 8:282-91. [PMID: 24827625 PMCID: PMC4026646 DOI: 10.5009/gnl.2014.8.3.282] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background/Aims The Wnt/β-catenin signaling pathway has been reported to play an important role in liver fibrosis. This study was designed to investigate whether mesoderm-specific transcript homologue (Mest), a strong negative regulator of Wnt/β-catenin signaling, could inhibit liver fibrosis. Methods pcDNA-Mest was transfected into hepatic stellate cells (HSCs) and rats. Rats were randomly divided into four groups: normal group (normal saline), treatment group (pcDNA-Mest+CCl4), control group (pcDNA-neo+CCl4), and model group (normal saline+CCl4). Changes in liver pathology were evaluated by hematoxylin and eosin and Masson's trichrome staining. The levels of alanine transaminase, aspartate transaminase, lactic dehygrogenase, hyaluronic acid, and laminin in the serum and hydroxyproline in the liver were detected by biochemical examination and radioimmunoassay, respectively. The expression and distribution of β-catenin, α-smooth muscle actin (α-SMA), Smad3, and tissue inhibitor of metalloproteinase type I were determined, and the viability of the HSCs was tested. Results Our data demonstrate that Mest alleviated CCl4-induced collagen deposition in liver tissue and improved the condition of the liver in rats. Mest also significantly reduced the expression and distribution of β-catenin, α-SMA and Smad3 both in vivo and in vitro, in addition to the viability of HSCs in vitro. Conclusions We found that Mest attenuates liver fibrosis by repressing β-catenin expression, which provides a new therapeutic approach for treating liver fibrosis.
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Affiliation(s)
- Wenting Li
- Department of Infectious Disease, Anhui Provincial Hospital, Hefei, China
| | - Chuanlong Zhu
- Department of Infectious Disease, Anhui Provincial Hospital, Hefei, China
| | - Yi Li
- Department of Infectious Disease, Anhui Provincial Hospital, Hefei, China
| | - Quan Wu
- Central Laboratory, Anhui Provincial Hospital, Hefei, China
| | - Rentao Gao
- Department of Infectious Disease, Anhui Provincial Hospital, Hefei, China
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Jiang Y, Wang C, Li YY, Wang XC, An JD, Wang YJ, Wang XJ. Mistletoe alkaloid fractions alleviates carbon tetrachloride-induced liver fibrosis through inhibition of hepatic stellate cell activation via TGF-β/Smad interference. JOURNAL OF ETHNOPHARMACOLOGY 2014; 158 Pt A:230-8. [PMID: 25456431 DOI: 10.1016/j.jep.2014.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 10/04/2014] [Accepted: 10/13/2014] [Indexed: 05/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mistletoe (Viscum coloratum (Kom.) Nakai) has long been categorized as a traditional herbal medicine in Asia. In addition to its application in cancer therapy, mistletoe has also been used in the treatment of chronic hepatic disorders in China. In the present study, we investigated the antifibrotic effect and mechanisms of action of mistletoe extracts in a rat model of carbon tetrachloride (CCl4)-induced hepatotoxicity. MATERIALS AND METHODS An experimental model of hepatic fibrosis was established by intraperitoneal injection of rats with CCl4 for 8 weeks. Rats were subsequently treated with a mistletoe alkaloid fraction preparation via oral administration (120mg/kg daily for 8 weeks) or with distilled water as a control. Histopathological changes were observed by hematoxylin and eosin staining and Masson׳s trichrome staining. The expression of markers relevant to hepatic stellate cell (HSC) activation in the liver was assessed by real-time reverse transcription-polymerase chain reaction, immunohistochemistry and western blotting. The anti-fibrosis activity and mechanisms of action of mistletoe alkaloid fractions were further investigated in the HSC-T6 HSC line, following treatment with mistletoe alkaloid fractions (12mg/ml) for 48h. RESULTS Hepatic fibrosis decreased markedly in CCl4-treated animals following treatment with mistletoe alkaloid fractions, compared to controls. The mRNA levels of transforming growth factor-β1 (TGF-β1), procollagen I and tissue inhibitors of metalloproteinases (TIMPs) were significantly downregulated, by about 40%, 40% and 45%, respectively, in liver tissues from rats treated with mistletoe alkaloid fractions. Furthermore, significant downregulation of TGF-β1, TGF-β1 receptor, phosphorylated Smad 2 and alpha smooth muscle actin (α-SMA) proteins, by about 45%, 30% and 40%, respectively, was also observed in liver tissues from mistletoe alkaloid fractions-treated rats. In contrast, Smad 7 levels were significantly increased by about 30% in mistletoe alkaloid fractions-treated rats. Treatment of HSC-T6 cells with mistletoe alkaloid fractions significantly induced Smad 7 expression and inhibited the expression of α-SMA, TGFβ1, TGF-β1 receptor, Smad 2 and TIMP-1, in vitro. CONCLUSION We demonstrate that mistletoe alkaloid fractions decrease extracellular matrix accumulation by inhibiting HSC activation. Mechanistically, this may occur via inhibition of TGF-β1/Smad 2 and Smad 7 signal transduction, thereby blocking the synthesis of procollagen I and TIMP-1. These findings suggest that mistletoe alkaloid fractions may be a potential therapeutic agent for the treatment of hepatic fibrosis.
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Affiliation(s)
- Ying Jiang
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Chi Wang
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Ying-Ying Li
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Xue-Cong Wang
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Jian-Duo An
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Yun-Jiao Wang
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China
| | - Xue-Jiang Wang
- Department of Pathophysiology, Capital Medical University, 100069 Beijing, China.
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CD4+CD25+Foxp3+ regulatory T cells contribute in liver fibrosis improvement with interferon alpha. Inflammation 2014; 36:1374-82. [PMID: 23813328 DOI: 10.1007/s10753-013-9677-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The aim of this study is to investigate the optimal dose, treatment time, and possible immunologic mechanisms of interferon alpha (IFN-α) in the treatment of liver fibrosis. Mice were injected intraperitoneally with 10 % carbon tetrachloride to induce liver fibrosis, except in the normal control group. The experimental mice were randomly divided into four groups: physiological saline group, 20 U/gb wt IFN-α group, 40 U/gb wt IFN-α group, and 60 U/gb wt IFN-α group. After 3 and 6 weeks, type I collagen was detected in liver by hematoxylin and eosin (HE) stain, Masson's trichrome stain, and immunohistochemical staining. The number of CD8(+) T cells, the number of CD4(+)CD25(+)Foxp3(+) Tregs and the activation of CD4(+) T cells were detected in liver and spleen. Beneficial effects were observed in the 40 U/gb wt IFN-α group by pathological analysis. The number of CD8(+) T cells in the liver was significantly lower in mice receiving middle-dose IFN-α therapy as compared to mice receiving physiological saline (P < 0.05), while CD4(+)CD25(+)Foxp3(+) Tregs and activation of CD4(+) T cells in the liver were significantly higher in the therapeutic group than in the physiological saline group (P < 0.05). CD8(+) T cells (r = 0.3796) and activated CD4(+) T cells (r = 0.2437) were found to be positively correlated with the degree of liver fibrosis. CD4(+)CD25(+)Foxp3(+) Tregs (r = -0.7932) was found to be negatively correlated with the degree of liver fibrosis. IFN-α can inhibit liver fibrosis following 6 weeks of middle-dose IFN-α therapy by upregulating CD4(+)CD25(+)Foxp3(+) Tregs and suppressing CD8(+) T cells.
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Venturi C, Sempoux C, Quinones JA, Bourdeaux C, Hoyos SP, Sokal E, Reding R. Dynamics of allograft fibrosis in pediatric liver transplantation. Am J Transplant 2014; 14:1648-56. [PMID: 24934832 DOI: 10.1111/ajt.12740] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Revised: 03/11/2014] [Accepted: 03/12/2014] [Indexed: 01/25/2023]
Abstract
Progressive liver allograft fibrosis (LAF) is well known to occur long term, as shown by its high prevalence in late posttransplant liver biopsies (LBs). To evaluate the influence of clinical variables and immunosuppression on LAF progression, LAF dynamic was assessed in 54 pediatric liver transplantation (LT) recipients at 6 months, 3 and 7 years post-LT, reviewing clinical, biochemical data and protocol LBs using METAVIR and the liver allograft fibrosis score, previously designed and validated specifically for LAF assessment. Scoring evaluations were correlated with fibrosis quantification by morphometric analysis. Progressive LAF was found in 74% of long-term patients, 70% of whom had unaltered liver enzymes. Deceased grafts showed more fibrosis than living-related grafts (p = 0.0001). Portal fibrosis was observed in correlation with prolonged ischemia time, deceased grafts and lymphoproliferative disease (p = 0.001, 0.006 and 0.012, respectively). Sinusoidal fibrosis was correlated with biliary complications (p = 0.01). Centrilobular fibrosis was associated with vascular complications (p = 0.044), positive autoantibodies (p = 0.017) and high gamma-globulins levels (p = 0.028). Steroid therapy was not associated with reduced fibrosis (p = 0.83). LAF could be viewed as a dynamic process with mostly progression along the time. Peri- and post-LT-associated factors may condition fibrosis development in a specific area of the liver parenchyma.
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Affiliation(s)
- C Venturi
- Pediatric Surgery and Transplant Unit, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
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Real-time tissue elastography (RTE) for noninvasive evaluation of fibrosis in liver diseases in children in comparison to liver biopsy. J Med Ultrason (2001) 2014; 41:455-62. [PMID: 27278026 DOI: 10.1007/s10396-014-0542-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/24/2014] [Indexed: 02/07/2023]
Abstract
PURPOSE To determine the value of real-time tissue elastography (RTE) in pediatric liver diseases in comparison to liver biopsy. METHODS RTE was performed on 34 patients (♀, n = 17; ♂, n = 17; range 0-21 years) with various acute and chronic liver diseases: autoimmune hepatitis (n = 5), liver transplantation (n = 5), Wilson's disease (n = 4), hepatopathy of unknown origin (n = 4), unclear cholestatic hepatitis (n = 2), thalassemia major (n = 2), glycogenosis (n = 2), hereditary fructose intolerance (n = 1), alpha-1-antitrypsin deficiency (n = 1), diabetes mellitus type 1 (n = 1), chronic intestinal pseudo-obstruction (n = 1), primary sclerosing cholangitis (n = 1), hepatitis B (n = 1), cirrhosis of unknown origin (n = 1), drug-induced hepatopathy (n = 1), unexplained transaminase elevation (n = 1), and nonalcoholic steatohepatitis (n = 1). Included children were biopsied. RTE was performed on a control group (n = 30; ♀, n = 15; ♂, n = 15). The mean value of strain (MEAN) in arbitrary units and the ratio of blue color-coded harder tissue (AREA) were calculated based on an elasticity histogram of the selected region of interest in liver parenchyma. They were compared with the histologically defined grade of liver fibrosis. RESULTS In comparison to the scoring systems, a moderate correlation was observed for MEAN and AREA by excluding the F0 patients [MEAN r = -0.575 to -0.645, AREA r = 0.545-0.607 (p < 0.05)]. Differentiation of the control group and low-grade fibrosis (F1) from high-grade fibrosis (F2-4) was significantly possible (p values <0.001 at 5 % significance level). CONCLUSION RTE parameters enable a possible differentiation of high fibrosis; however, their correlation with fibrosis stage was moderate. RTE seems to be a promising method in liver fibrosis grading in children.
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Liang J, Zhang B, Shen RW, Liu JB, Gao MH, Geng X, Li Y, Li YY, Zhang W. The effect of antifibrotic drug halofugine on Th17 cells in concanavalin A-induced liver fibrosis. Scand J Immunol 2014; 79:163-72. [PMID: 24383550 DOI: 10.1111/sji.12144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 11/25/2013] [Indexed: 12/14/2022]
Abstract
Anti-inflammation strategy is one of the proposed therapeutic approaches to hepatic fibrosis. T helper (Th) 17 cells, which play a detrimental role in experimental murine models of inflammatory diseases, have been demonstrated to participate in the pathogenesis of liver damage. The inhibitory effect of halofuginone (HF), an active component of extracts derived from the plant alkaloid febrifugine, on collagen synthesis has been shown in animal models of the fibrotic disease. The aim of this study was to clarify the in vivo effect of HF on Th17 cells in concanavalin A-induced fibrosis rats. Haematoxylin-eosin (HE) staining and Masson staining were performed to observe collagen deposition. The presence of INF-gamma, TNF-alpha, IL-6, IL-17, IL-1beta, IL-33 and IL-10 in serum and the presence of ROR-γt, IL-17, TGF-β1 and α-SMA in liver tissue were detected. Flow cytometry was performed to analyse the percentage of Th17 cells. We observed significantly lower levels of INF-gamma, TNF-alpha, IL-6, IL-17, IL-1beta, TGF-β1 and α-SMA in HF-treated group of rats, and the percentage of Th17 cells in splenic lymphocyte was decreased well. Histological examination demonstrated that HF significantly reduced the severity of liver fibrosis in HF-treated rats. We concluded that HF (10 mg/kg) exerts an antifibrotic impact on Th17 cells and its relative cytokines in rats with ConA-induced fibrosis.
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Affiliation(s)
- J Liang
- Department of Immunology, Medical College of Qingdao University, QingDao, China
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