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Wu J, Li WH, Wang WR, Jin XQ, Liu EQ. Proteomics Analysis of Lipid Metabolism and Inflammatory Response in the Liver of Rabbits fed on a High Cholesterol Diet. Cell Biochem Biophys 2023:10.1007/s12013-023-01139-y. [PMID: 37160861 DOI: 10.1007/s12013-023-01139-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 04/16/2023] [Indexed: 05/11/2023]
Abstract
In this study, we aimed to analyze the proteomics of the liver in rabbits on a high cholesterol diet (HCD). We randomly divided New Zealand white rabbits into the normal diet group and the HCD group. We established the atherosclerosis model and measured plasma cholesterol and triglycerides. The model was successfully established using ultrasound examination and histopathological staining of the intima of aorta and liver of the two groups of rabbits. The differential proteins in the rabbit liver were analyzed using Tandem Mass Tags proteomic analysis technology. Finally, we used western blot to verify the reliability of proteomics. The results showed that compared with the control group, the serum lipid levels of rats in the HCD group was significantly increased, and the pathological sections showed the formation of atherosclerotic plaques in the aorta, inflammation, and adipose lesions in the liver. Proteomic analysis of the liver revealed 149 differences in HCD-expressed protein, which is mainly involved in inflammation and regulation of lipid and sugar metabolism. In addition, we verified differentially expressed liver proteins in the HCD group using western blot. We found that HCD caused lipid accumulation, abnormal glucose metabolism, and inflammatory response in the liver.
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Affiliation(s)
- Jing Wu
- Department of Laboratory Animal Center, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Department of Laboratory Animal Center, Ningxia Medical University, Yinchuan, 750001, China
| | - Wei-Hua Li
- Department of Laboratory Animal Center, Ningxia Medical University, Yinchuan, 750001, China
| | - Wei-Rong Wang
- Department of Laboratory Animal Center, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
- Department of Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, 710061, China
| | - Xue-Qin Jin
- Department of Laboratory Animal Center, Ningxia Medical University, Yinchuan, 750001, China
| | - En-Qi Liu
- Department of Laboratory Animal Center, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China.
- Department of Research Institute of Atherosclerotic Disease, Xi'an Jiaotong University Cardiovascular Research Center, Xi'an, 710061, China.
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2
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Christ B, Collatz M, Dahmen U, Herrmann KH, Höpfl S, König M, Lambers L, Marz M, Meyer D, Radde N, Reichenbach JR, Ricken T, Tautenhahn HM. Hepatectomy-Induced Alterations in Hepatic Perfusion and Function - Toward Multi-Scale Computational Modeling for a Better Prediction of Post-hepatectomy Liver Function. Front Physiol 2021; 12:733868. [PMID: 34867441 PMCID: PMC8637208 DOI: 10.3389/fphys.2021.733868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 10/26/2021] [Indexed: 01/17/2023] Open
Abstract
Liver resection causes marked perfusion alterations in the liver remnant both on the organ scale (vascular anatomy) and on the microscale (sinusoidal blood flow on tissue level). These changes in perfusion affect hepatic functions via direct alterations in blood supply and drainage, followed by indirect changes of biomechanical tissue properties and cellular function. Changes in blood flow impose compression, tension and shear forces on the liver tissue. These forces are perceived by mechanosensors on parenchymal and non-parenchymal cells of the liver and regulate cell-cell and cell-matrix interactions as well as cellular signaling and metabolism. These interactions are key players in tissue growth and remodeling, a prerequisite to restore tissue function after PHx. Their dysregulation is associated with metabolic impairment of the liver eventually leading to liver failure, a serious post-hepatectomy complication with high morbidity and mortality. Though certain links are known, the overall functional change after liver surgery is not understood due to complex feedback loops, non-linearities, spatial heterogeneities and different time-scales of events. Computational modeling is a unique approach to gain a better understanding of complex biomedical systems. This approach allows (i) integration of heterogeneous data and knowledge on multiple scales into a consistent view of how perfusion is related to hepatic function; (ii) testing and generating hypotheses based on predictive models, which must be validated experimentally and clinically. In the long term, computational modeling will (iii) support surgical planning by predicting surgery-induced perfusion perturbations and their functional (metabolic) consequences; and thereby (iv) allow minimizing surgical risks for the individual patient. Here, we review the alterations of hepatic perfusion, biomechanical properties and function associated with hepatectomy. Specifically, we provide an overview over the clinical problem, preoperative diagnostics, functional imaging approaches, experimental approaches in animal models, mechanoperception in the liver and impact on cellular metabolism, omics approaches with a focus on transcriptomics, data integration and uncertainty analysis, and computational modeling on multiple scales. Finally, we provide a perspective on how multi-scale computational models, which couple perfusion changes to hepatic function, could become part of clinical workflows to predict and optimize patient outcome after complex liver surgery.
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Affiliation(s)
- Bruno Christ
- Cell Transplantation/Molecular Hepatology Lab, Department of Visceral, Transplant, Thoracic and Vascular Surgery, University of Leipzig Medical Center, Leipzig, Germany
| | - Maximilian Collatz
- RNA Bioinformatics and High-Throughput Analysis, Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany
- Optisch-Molekulare Diagnostik und Systemtechnologié, Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
- InfectoGnostics Research Campus Jena, Jena, Germany
| | - Uta Dahmen
- Experimental Transplantation Surgery, Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena, Germany
| | - Karl-Heinz Herrmann
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Sebastian Höpfl
- Faculty of Engineering Design, Production Engineering and Automotive Engineering, Institute for Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
| | - Matthias König
- Systems Medicine of the Liver Lab, Institute for Theoretical Biology, Humboldt-University Berlin, Berlin, Germany
| | - Lena Lambers
- Faculty of Aerospace Engineering and Geodesy, Institute of Mechanics, Structural Analysis and Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Manja Marz
- RNA Bioinformatics and High-Throughput Analysis, Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany
| | - Daria Meyer
- RNA Bioinformatics and High-Throughput Analysis, Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany
| | - Nicole Radde
- Faculty of Engineering Design, Production Engineering and Automotive Engineering, Institute for Systems Theory and Automatic Control, University of Stuttgart, Stuttgart, Germany
| | - Jürgen R. Reichenbach
- Medical Physics Group, Institute of Diagnostic and Interventional Radiology, Jena University Hospital, Jena, Germany
| | - Tim Ricken
- Faculty of Aerospace Engineering and Geodesy, Institute of Mechanics, Structural Analysis and Dynamics, University of Stuttgart, Stuttgart, Germany
| | - Hans-Michael Tautenhahn
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena, Germany
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3
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Longerich T, Endris V, Neumann O, Rempel E, Kirchner M, Abadi Z, Uhrig S, Kriegsmann M, Weiss KH, Breuhahn K, Mehrabi A, Weber TF, Wilkens L, Straub BK, Rosenwald A, Schulze F, Brors B, Froehling S, Pellegrino R, Budczies J, Schirmacher P, Stenzinger A. RSPO2 gene rearrangement: a powerful driver of β-catenin activation in liver tumours. Gut 2019; 68:1287-1296. [PMID: 30901310 DOI: 10.1136/gutjnl-2018-317632] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/14/2019] [Accepted: 01/15/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVE We aimed at the identification of genetic alterations that may functionally substitute for CTNNB1 mutation in ß-catenin-activated hepatocellular adenomas (HCAs) and hepatocellular carcinoma (HCC). DESIGN Large cohorts of HCA (n=185) and HCC (n=468) were classified using immunohistochemistry. The mutational status of the CTNNB1 gene was determined in ß-catenin-activated HCA (b-HCA) and HCC with at least moderate nuclear CTNNB1 accumulation. Ultra-deep sequencing was used to characterise CTNNB1wild-type and ß-catenin-activated HCA and HCC. Expression profiling of HCA subtypes was performed. RESULTS A roof plate-specific spondin 2 (RSPO2) gene rearrangement resulting from a 46.4 kb microdeletion on chromosome 8q23.1 was detected as a new morphomolecular driver of β-catenin-activated HCA. RSPO2 fusion positive HCA displayed upregulation of RSPO2 protein, nuclear accumulation of β-catenin and transcriptional activation of β-catenin-target genes indicating activation of Wingless-Type MMTV Integration Site Family (WNT) signalling. Architectural and cytological atypia as well as interstitial invasion indicated malignant transformation in one of the RSPO2 rearranged b-HCAs. The RSPO2 gene rearrangement was also observed in three β-catenin-activated HCCs developing in context of chronic liver disease. Mutations of the human telomerase reverse transcriptase promoter-known to drive malignant transformation of CTNNB1-mutated HCA-seem to be dispensable for RSPO2 rearranged HCA and HCC. CONCLUSION The RSPO2 gene rearrangement leads to oncogenic activation of the WNT signalling pathway in HCA and HCC, represents an alternative mechanism for the development of b-HCA and may drive malignant transformation without additional TERT promoter mutation.
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Affiliation(s)
- Thomas Longerich
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany.,Liver Cancer Center Heidelberg, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Volker Endris
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Olaf Neumann
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Eugen Rempel
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Martina Kirchner
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Zahra Abadi
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Sebastian Uhrig
- Faculty of Bioscience, Ruprecht Karls University Heidelberg, Heidelberg, Germany.,Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Mark Kriegsmann
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Karl Heinz Weiss
- Liver Cancer Center Heidelberg, UniversitatsKlinikum Heidelberg, Heidelberg, Germany.,Department of Internal Medicine IV, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Kai Breuhahn
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Arianeb Mehrabi
- Liver Cancer Center Heidelberg, UniversitatsKlinikum Heidelberg, Heidelberg, Germany.,Department of General, Visceral and Transplantation Surgery, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Tim Frederik Weber
- Liver Cancer Center Heidelberg, UniversitatsKlinikum Heidelberg, Heidelberg, Germany.,Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Ludwig Wilkens
- Institute for Pathology, KRH, Nordstadt Krankenhaus, Hannover, Germany.,Institute for Human Genetics, Medical School Hannover, Hannover, Germany
| | - Beate K Straub
- Institute of Pathology, Johannes Gutenberg Universitat Universitatsmedizin, Mainz, Germany
| | - Andreas Rosenwald
- Institute of Pathology, University of Wuerzburg and Comprehensive Cancer Center Mainfranken, Würzburg, Germany
| | - Falko Schulze
- Senckenberg Institute of Pathology, Klinikum der Johann Wolfgang Goethe-Universitat Frankfurt, Frankfurt am Main, Germany
| | - Benedikt Brors
- Division of Applied Bioinformatics, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan Froehling
- Division of Translational Medical Oncology, National Center for Tumor Diseases (NCT) Heidelberg and German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Rossella Pellegrino
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Jan Budczies
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Peter Schirmacher
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany.,Liver Cancer Center Heidelberg, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
| | - Albrecht Stenzinger
- Institute of Pathology, UniversitatsKlinikum Heidelberg, Heidelberg, Germany
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4
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Pourtaji A, Robati RY, Lari P, Hosseinzadeh H, Ramezani M, Abnous K. Proteomics screening of adenosine triphosphate-interacting proteins in the liver of diazinon-treated rats. Hum Exp Toxicol 2015; 35:1084-92. [PMID: 26721910 DOI: 10.1177/0960327115619771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIM Diazinon (DZN) is one of the most important organophosphorus compounds used to control pests in agriculture in many countries. Several studies have shown that exposure to DZN may alter protein expression in the liver. In order to further investigate the mechanism of DZN toxicity, differentially expressed ATP-interacting proteins, following subacute exposure to toxin, were separated and identified in rat liver. MAIN METHODS Male rats were equally divided into four groups: control (corn oil) and DZN (15 mg/kg) by gavage once a day for 4 weeks. After homogenization of liver tissue, lysates were incubated ATP-sepharose beads. After several washes, ATP-interacting proteins were eluted and separated on 2-D polyacrylamide gels. Deferentially expressed proteins were cut and identified using matrix-assisted laser desorption/ionization/time-of-flight and Mascot database. Identified proteins were classified according to their biological process using protein analysis through evolutionary relationships (PANTHER) Web site. KEY FINDING In this work, we showed that several key proteins involved in biological processes such as antioxidant system, oxidative stress, apoptosis, and metabolism were differentially expressed after subacute exposure to DZN.
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Affiliation(s)
- A Pourtaji
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - R Yazdian Robati
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - P Lari
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - H Hosseinzadeh
- Pharmaceutical Research Center, Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - M Ramezani
- Nanotechnology Research Center, Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - K Abnous
- Pharmaceutical Research Center, Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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5
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He J, Hao S, Zhang H, Guo F, Huang L, Xiao X, He D. Chronological protein synthesis in regenerating rat liver. Electrophoresis 2015; 36:1622-32. [DOI: 10.1002/elps.201500019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 03/05/2015] [Accepted: 04/02/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Jinjun He
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Shuai Hao
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Hao Zhang
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Fuzheng Guo
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Lingyun Huang
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Xueyuan Xiao
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
| | - Dacheng He
- Key Laboratory of Cell Proliferation and Regulation Biology Ministry of Education; Universities of the Confederated Institute for Proteomics, Beijing Normal University; Beijing P. R. China
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6
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Chen XG, Xu CS. Proteomic analysis of the regenerating liver following 2/3 partial hepatectomy in rats. Biol Res 2014; 47:59. [PMID: 25723318 PMCID: PMC4335715 DOI: 10.1186/0717-6287-47-59] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Accepted: 11/04/2014] [Indexed: 12/16/2022] Open
Abstract
Background Liver regeneration (LR) after 2/3 partial hepatectomy (PH) is one of the most studied models of cell, organ, and tissue regeneration. Although the transcriptional profile analysis of regenerating liver has been carried out by many reserachers, the dynamic protein expression profile during LR has been rarely reported up to date. Therefore, this study aims to detect the global proteomic profile of the regenerating rat liver following 2/3 hepatectomy, thereby gaining some insights into hepatic regeneration mechanism. Results Protein samples extracted from the sham-operated and the regenerating rat livers at 6, 12, 24, 72, 120 and 168 h after PH were separated by IEF/SDS-PAGE and then analyzed by MALDI-TOF/TOF mass spectrometry. Compared to sham-operated groups, there were totally 220 differentially expressed proteins (including 156 up-regulated, 62 down-regulated, and 2 up/down-regulated ones) identified in the regenerating rat livers, and most of them have not been previously related to liver regeneration. According to the expression pattern analysis combined with gene functional analysis, it showed that lipid and carbohydrate metabolism were enhanced at the early phase of LR and continue throughout the regeneration process. Ingenuity Pathway Analysis indicated that YWHAE protein (one of members of the 14-3-3 protein family) was located at the center of pathway networks at all the timepoints after 2/3 hepatectomy under our experimental conditions, maybe suggesting a central role of this protein in regulating liver regeneration. Additionally, we also revealed the role of Cdc42 (cell division cycle 42) in the termination of LR. Conclusions For the first time, our proteomic analysis suggested an important role of YWHAE and pathway mediated by this protein in liver regeneration, which might be helpful in expanding our understanding of LR amd unraveling the mechanisms of LR. Electronic supplementary material The online version of this article (doi:10.1186/0717-6287-47-59) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xiao-Guang Chen
- Animal Science and Technology School, Henan University of Science and Technology, Luoyang, Henan Province, 471003, China.
| | - Cun-Shuan Xu
- Key Laboratory for Cell Differentiation Regulation, Henan Normal University, Xinxiang, Henan Province, 453007, China.
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Kumar S, Zou Y, Bao Q, Wang M, Dai G. Proteomic analysis of immediate-early response plasma proteins after 70% and 90% partial hepatectomy. Hepatol Res 2013; 43:876-89. [PMID: 23279269 PMCID: PMC4354878 DOI: 10.1111/hepr.12030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 11/18/2012] [Accepted: 11/20/2012] [Indexed: 02/08/2023]
Abstract
AIM Partial hepatectomy (PH) induces robust hepatic regenerative and metabolic responses that are considered to be triggered by humoral factors. The aim of the study was to identify plasma protein factors that potentially trigger or reflect the body's immediate-early responses to liver mass reduction. METHODS Male C57BL/6 mice were subjected to sham operation, 70% PH or 90% PH. Blood was collected from the inferior vena cava at 20, 60 and 180 min after surgery. RESULTS Using a label-free quantitative mass spectrometry-based proteomics approach, we identified 399 proteins exhibiting significant changes in plasma expression between any two groups. Of the 399 proteins, 167 proteins had multiple unique sequences and high peptide ID confidence (>90%) and were defined as priority 1 proteins. A group of plasma proteins largely associated with metabolism is enriched after 70% PH. Among the plasma proteins that respond to 90% PH are a dominant group of proteins that are also associated with metabolism and one known cytokine (platelet factor 4). Ninety percent PH and 70% PH induces similar changes in plasma protein profile. CONCLUSION Our findings enable us to gain insight into the immediate-early response of plasma proteins to liver mass loss. Our data support the notion that increased metabolic demands of the body after massive liver mass loss may function as a sensor that calibrates hepatic regenerative response.
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Affiliation(s)
- Sudhanshu Kumar
- Department of Biology, School of Science, Center for Regenerative Biology and Medicine, Indiana University-Purdue University Indianapolis, Indiana
| | - Yuhong Zou
- Department of Biology, School of Science, Center for Regenerative Biology and Medicine, Indiana University-Purdue University Indianapolis, Indiana
| | - Qi Bao
- Department of Biology, School of Science, Center for Regenerative Biology and Medicine, Indiana University-Purdue University Indianapolis, Indiana
| | - Mu Wang
- Department of Biochemistry and Molecular Biology, School of Medicine, Indiana University, Indianapolis, Indiana
| | - Guoli Dai
- Department of Biology, School of Science, Center for Regenerative Biology and Medicine, Indiana University-Purdue University Indianapolis, Indiana
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8
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Ben Ya'acov A, Lalazar G, Zolotaryova L, Steinhardt Y, Lichtentein Y, Ilan Y, Shteyer E. Impaired liver regeneration by β-glucosylceramide is associated with decreased fat accumulation. J Dig Dis 2013; 14:425-32. [PMID: 23575221 DOI: 10.1111/1751-2980.12062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To investigate the effect of β-glucosylceramide (GC), a natural glycolipid, on hepatic fat accumulation and regenerative response after partial hepatectomy (PH). METHODS Male C57Bl/6 mice were assigned to either 70% PH or sham surgery after receiving daily intraperitoneal injection of GC or vehicle for 3 days. Hepatic fat accumulation, cytokines, cell cycle proteins and adipogenic genes expression were assessed at various time points after PH. RESULTS The administration of GC delayed hepatic triglyceride accumulation during hepatic regeneration. This observation was closely correlated with alterations in the expression of four major adipogenic genes during the course of liver regeneration, with reduced expression 3 h after PH and increased expression 48 h post-surgery. GC significantly reduced hepatocellular proliferation 48 h after PH. In GC-treated mice, both tumor necrosis factor-α and interleukin-6 levels were lower 3, 48 and 72 h after PH compared with the control group. CONCLUSIONS Administration of GC delayed hepatic triglyceride accumulation and suppressed early adipogenic gene expression during the hepatic regenerative response. These changes are closely associated with early inhibition of liver regeneration and temporal alteration of cytokine secretion.
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Affiliation(s)
- Ami Ben Ya'acov
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel.
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9
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Bönninghoff R, Schwenke K, Keese M, Magdeburg R, Bitter-Suermann H, Otto M, Hasenberg T, Post S, Sturm J. Effect of different liver resection methods on liver damage and regeneration factors VEGF and FGF-2 in mice. Can J Surg 2013; 55:389-93. [PMID: 22992401 DOI: 10.1503/cjs.007911] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Different approaches to study liver regeneration in murine models have been proposed. We investigated the effect of different liver resection models on liver damage and regeneration parameters in mice. METHODS We compared the technical aspect of the 2 most commonly used techniques of 50% and 70% liver resection. Liver damage, as determined by the change in serum alanine aminotransferase and aspartate aminotransferase, as well as the regeneration parameters VEGF and FGF-2 were analyzed at 6 time points. A postoperative vitality score was introduced. RESULTS Cholestasis was not observed for either technique. Both resection techniques resulted in full weight recovery of the liver after 240 hours, with no significant difference between sham and resection groups. Postoperative animal morbidity and total protein levels did not differ significantly for either method, indicating early and full functional recovery. However, comparing the mitogenic growth factors FGF-2 and VEGF, a significant increase in serum levels and, therefore, increased growth stimulus, was shown in the extended resection group. CONCLUSION Extended resection led to a greater response in growth factor expression. This finding is important since it shows that growth factor response differs acdording to the extent of resection. We have demonstrated the need to standardize murine hepatic resection models to adequately compare the resulting liver damage.
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Affiliation(s)
- Roderich Bönninghoff
- The Department of Surgery, Medical Faculty Mannheim, University Medical Centre Mannheim, Heidelberg University, Heidelberg, Germany
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10
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Franco C, Soares R, Pires E, Koci K, Almeida AM, Santos R, Coelho AV. Understanding regeneration through proteomics. Proteomics 2013; 13:686-709. [DOI: 10.1002/pmic.201200397] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 10/31/2012] [Accepted: 11/06/2012] [Indexed: 12/29/2022]
Affiliation(s)
- Catarina Franco
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - Renata Soares
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - Elisabete Pires
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - Kamila Koci
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
| | - André M. Almeida
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
- Instituto de Investigação Científica Tropical; Lisboa Portugal
| | - Romana Santos
- Unidade de Investigação em Ciências Orais e Biomédicas, Faculdade de Medicina Dentária; Universidade de Lisboa; Portugal
| | - Ana Varela Coelho
- Instituto de Tecnologia Química e Biológica; Universidade Nova de Lisboa; Oeiras Portugal
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11
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Wei DF, Wei YX, Cheng WD, Yan MF, Su G, Hu Y, Ma YQ, Han C, Lu Y, Hui-Ming C, Bao YC. Proteomic analysis of the effect of triterpenes from Patrinia heterophylla on leukemia K562 cells. JOURNAL OF ETHNOPHARMACOLOGY 2012; 144:576-83. [PMID: 23064283 DOI: 10.1016/j.jep.2012.09.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 09/17/2012] [Accepted: 09/25/2012] [Indexed: 06/01/2023]
Abstract
For centuries, Patrinia heterophylla had been used in China to treat many diseases including tumor. Triterpenes has been identified as the major active constituents in Patrinia heterophylla. To elucidate the antitumor mechanism of triterpenes from Patrinia heterophylla1 (TPH), a proteomic analysis is carried out with TPH treatment in K562 cells. The total proteins extracted from TPH treated K562 cells are analyzed by two dimensional gel electrophoresis (2-DE) and compared with those untreated K562 cells. Mass spectrometry is applied to identify the differentially expressed proteins. Twenty-three differentially expressed significant proteins are discovered. Eight proteins are later identified by mass spectrometry (MALDI-TOF-MS) and Mascot software. Among them, four proteins are up-regulated (Aldolase A, Glyceraldehyde-3-phosphate dehydrogenase, Flavin reductase and Hemoglobin subunit) and four proteins were down-regulated (Heat-shock protein 90 〈Alpha〉 (HSP90-〈Alpha〉), Eukaryotic translation initiation factor 5A, Moesin, tublin) by TPH treatment in K562 cells. The identified proteins are associated with energy metabolism, oxidative stress, apoptosis, signal transduction, differential induction, and protein biosynthesis. These findings might provide valuable insights into the antitumor mechanism of TPH in K562 cells.
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Affiliation(s)
- Dong-Feng Wei
- School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
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Kang LI, Mars WM, Michalopoulos GK. Signals and cells involved in regulating liver regeneration. Cells 2012; 1:1261-92. [PMID: 24710554 PMCID: PMC3901148 DOI: 10.3390/cells1041261] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2012] [Revised: 11/27/2012] [Accepted: 12/07/2012] [Indexed: 12/11/2022] Open
Abstract
Liver regeneration is a complex phenomenon aimed at maintaining a constant liver mass in the event of injury resulting in loss of hepatic parenchyma. Partial hepatectomy is followed by a series of events involving multiple signaling pathways controlled by mitogenic growth factors (HGF, EGF) and their receptors (MET and EGFR). In addition multiple cytokines and other signaling molecules contribute to the orchestration of a signal which drives hepatocytes into DNA synthesis. The other cell types of the liver receive and transmit to hepatocytes complex signals so that, in the end of the regenerative process, complete hepatic tissue is assembled and regeneration is terminated at the proper time and at the right liver size. If hepatocytes fail to participate in this process, the biliary compartment is mobilized to generate populations of progenitor cells which transdifferentiate into hepatocytes and restore liver size.
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Affiliation(s)
- Liang-I Kang
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA.
| | - Wendy M Mars
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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13
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Samino S, Revuelta-Cervantes J, Vinaixa M, Rodríguez MÁ, Valverde AM, Correig X. A (1)H NMR metabolic profiling to the assessment of protein tyrosine phosphatase 1B role in liver regeneration after partial hepatectomy. Biochimie 2012; 95:808-16. [PMID: 23246914 DOI: 10.1016/j.biochi.2012.11.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 11/28/2012] [Indexed: 11/24/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator of the tyrosine kinase growth factor signaling pathway, which is involved in major physiological mechanisms such as liver regeneration. We investigate early hepatic metabolic events produced by partial hepatectomy (PHx) for PTP1B deficient (PTP1B KO) and wild type (WT) mice using proton nuclear magnetic resonance spectroscopy. Metabolic response of the two genotypes produced 24 h upon PHx is compared using magic angle spinning high-resolution nuclear magnetic resonance ((1)H-HR-MAS-NMR) on intact liver tissues. In addition, genotype-associated metabolic profile changes were monitored during the first 48 h after PHx using high-resolution nuclear magnetic resonance ((1)H-HR-NMR) on liver extracts. A marked increase of lipid-related signals in regenerating livers was observed after 24 h PHx in either intact tissues or liver extracts studies. In spite of this common initial metabolic response, results obtained 48 h after PHx on liver extracts indicate a genotype-differential metabolic pattern. This metabolic pattern resulted in line with well known regenerative features such as more sustained cell proliferation, a better management of lipids as energy fuel and lessened liver injury for PTP1B KO mice as compared to WT. Taken together, these findings suggest the metabolic basis to the pivotal role of PTP1B in liver regeneration.
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Affiliation(s)
- Sara Samino
- Metabolomics Platform, IISPV, Universitat Rovira i Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
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14
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Iwata T, Taniguchi H, Kuwajima M, Taniguchi T, Okuda Y, Sukeno A, Ishimoto K, Mizusawa N, Yoshimoto K. The action of D-dopachrome tautomerase as an adipokine in adipocyte lipid metabolism. PLoS One 2012; 7:e33402. [PMID: 22428043 PMCID: PMC3299789 DOI: 10.1371/journal.pone.0033402] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Accepted: 02/13/2012] [Indexed: 01/23/2023] Open
Abstract
Adipose tissue is a critical exchange center for complex energy transactions involving triacylglycerol storage and release. It also has an active endocrine role, releasing various adipose-derived cytokines (adipokines) that participate in complex pathways to maintain metabolic and vascular health. Here, we found D-dopachrome tautomerase (DDT) as an adipokine secreted from human adipocytes by a proteomic approach. DDT mRNA levels in human adipocytes were negatively correlated with obesity-related clinical parameters such as BMI, and visceral and subcutaneous fat areas. Experiments using SGBS cells, a human preadipocyte cell line, revealed that DDT mRNA levels were increased in an adipocyte differentiation-dependent manner and DDT was secreted from adipocytes. In DDT knockdown adipocytes differentiated from SGBS cells that were infected with the adenovirus expressing shRNA against the DDT gene, mRNA levels of genes involved in both lipolysis and lipogenesis were slightly but significantly increased. Furthermore, we investigated AMP-activated protein kinase (AMPK) signaling, which phosphorylates and inactivates enzymes involved in lipid metabolism, including hormone-sensitive lipase (HSL) and acetyl-CoA carboxylase (ACC), in DDT knockdown adipocytes. The AMPK phosphorylation of HSL Ser-565 and ACC Ser-79 was inhibited in DDT knockdown cells and recovered in the cells treated with recombinant DDT (rDDT), suggesting that down-regulated DDT in adipocytes brings about a state of active lipid metabolism. Furthermore, administration of rDDT in db/db mice improved glucose intolerance and decreased serum free fatty acids levels. In the adipose tissue from rDDT-treated db/db mice, not only increased levels of HSL phosphorylated by AMPK, but also decreased levels of HSL phosphorylated by protein kinase A (PKA), which phosphorylates HSL to promote its activity, were observed. These results suggested that DDT acts on adipocytes to regulate lipid metabolism through AMPK and/or PKA pathway(s) and improves glucose intolerance caused by obesity.
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Affiliation(s)
- Takeo Iwata
- Department of Medical Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Hisaaki Taniguchi
- Division of Disease Proteomics, Institute for Enzyme Research, The University of Tokushima, Tokushima, Japan
| | - Masamichi Kuwajima
- Department of Clinical Biology and Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
- Taijukai-Kaisei General Hospital, Sakaide, Japan
| | - Takako Taniguchi
- Division of Disease Proteomics, Institute for Enzyme Research, The University of Tokushima, Tokushima, Japan
| | - Yuko Okuda
- Division of Disease Proteomics, Institute for Enzyme Research, The University of Tokushima, Tokushima, Japan
| | - Akiko Sukeno
- Department of Clinical Biology and Medicine, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Kyoko Ishimoto
- Department of Orthodontics and Dentofacial Orthopedics, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Noriko Mizusawa
- Department of Medical Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Katsuhiko Yoshimoto
- Department of Medical Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
- * E-mail:
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15
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Severino V, Locker J, Ledda-Columbano GM, Columbano A, Parente A, Chambery A. Proteomic characterization of early changes induced by triiodothyronine in rat liver. J Proteome Res 2011; 10:3212-24. [PMID: 21563808 DOI: 10.1021/pr200244f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
High doses of T3 are mitogenic in liver, causing hyperplasia that has numerous differences from the compensatory regeneration induced by partial hepatectomy (PH). T3 binds to the thyroid hormone receptor (TR), which directly regulates transcription, while PH acts indirectly through signal transduction pathways. We therefore carried out a proteomic analysis to compare early effects of the two treatments. Transcriptome analysis by DNA microarray also confirmed the observed proteomic changes, demonstrating that they were caused by transcriptional regulation. Among the differentially expressed proteins, many are directly or indirectly involved in energy metabolism and response to oxidative stress. Several enzymes of lipid metabolism (e.g., Acaa2, Acads, Hadh, and Echs1) were differentially regulated by T3. In addition, altered expression levels of several mitochondrial proteins (e.g., Hspa9, Atp5b, Cps1, Glud1, Aldh2, Ak2, Acads) demonstrated the known increase of mitochondrial biogenesis mediated by T3. The present results provide insights in changes in metabolic balance occurring following T3-stimulation and define a basis for dissecting the molecular pathways of hepatocyte hyperplasia.
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Affiliation(s)
- Valeria Severino
- Department of Life Science, Second University of Naples, Via Vivaldi 43, I-81100 Caserta, Italy
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16
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Proteomics analysis of plasma membrane from liver sinusoidal endothelial cells after partial hepatectomy by an improved two-dimensional electrophoresis. Mol Cell Biochem 2010; 344:137-50. [PMID: 20607590 DOI: 10.1007/s11010-010-0537-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Accepted: 06/24/2010] [Indexed: 01/17/2023]
Abstract
Liver regeneration is an angiogenesis-associated phenomenon. To identify key plasma membrane (PM) proteins of endothelial cells involved in the initiation of angiogenesis during liver regeneration, the PM of liver sinusoidal endothelial cells (LSEC) at 72 h after partial hepatectomy was enriched by an established in vivo membrane density perturbation method. The differentially expressed membrane proteins compared to those from sham operation were quantified using an improved two-dimensional 16-BAC/SDS-PAGE and identified by LC-MS/MS. Several proteins were further confirmed by cICAT labeling quantitative strategy. A total of 47 proteins were identified including known and novel proteins involved in angiogenesis or liver regeneration, such as inducible nitric oxide synthase, type IV collagen, and integrin beta3. Our results indicated that the combination of the membrane density perturbation strategy and the improved two-dimensional electrophoresis (2-DE) method are useful for investigating the endothelial dysfunctions in vivo.
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17
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Walldorf J, Hillebrand C, Aurich H, Stock P, Hempel M, Ebensing S, Fleig WE, Seufferlein T, Dollinger MM, Christ B. Propranolol impairs liver regeneration after partial hepatectomy in C57Bl/6-mice by transient attenuation of hepatic lipid accumulation and increased apoptosis. Scand J Gastroenterol 2010; 45:468-76. [PMID: 20082593 DOI: 10.3109/00365520903583848] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE Acute hepatic fat accumulation appears to be crucial for liver regeneration after partial hepatectomy. Since fatty acids in the liver are provided by catecholamine-induced lipolysis in the adipose tissue, we investigated whether beta-adrenergic blockade of lipolysis might affect liver regeneration. MATERIAL AND METHODS Mice were treated with propranolol prior to partial hepatectomy. Subsequently, liver regeneration was evaluated histologically, by determination of the relative liver weight and the mitotic index at different time points after surgery. RESULTS Liver mass restoration was delayed by propranolol, which was associated with a lower hepatic triglyceride content. Ki-67 labelling indicated that liver regeneration was attenuated by propranolol through inhibition of mitosis. Hepatocytes were arrested in the G1 phase of the cell cycle, as shown by the expression of G1-related proteins such as proliferating cell nuclear antigen, cyclin D1 and cyclin-dependent kinase-2, and underwent apoptosis as indicated by detection of poly(adenosine diphosphate-ribose) polymerase fragments. beta-adrenergic blockade of the host animal did not provide transplanted hepatocytes with a growth advantage over host cells. CONCLUSION Impairment of liver regeneration by propranolol is related to the inhibition of acute hepatic fat accumulation and to a predisposition of hepatocytes to apoptosis.
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Affiliation(s)
- Jens Walldorf
- First Department of Medicine, Martin-Luther University of Halle-Wittenberg, Halle/Saale, Germany
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18
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Proteomic analysis of regenerating mouse liver following 50% partial hepatectomy. Proteome Sci 2009; 7:48. [PMID: 20040084 PMCID: PMC2813229 DOI: 10.1186/1477-5956-7-48] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Accepted: 12/29/2009] [Indexed: 12/29/2022] Open
Abstract
Background Although 70% (or 2/3) partial hepatectomy (PH) is the most studied model for liver regeneration, the hepatic protein expression profile associated with lower volume liver resection (such as 50% PH) has not yet been reported. Therefore, the aim of this study was to determine the global protein expression profile of the regenerating mouse liver following 50% PH by differential proteomics, and thereby gaining some insights into the hepatic regeneration mechanism(s) under this milder but clinically more relevant condition. Results Proteins from sham-operated mouse livers and livers regenerating for 24 h after 50% PH were separated by SDS-PAGE and analyzed by nanoUPLC-Q-Tof mass spectrometry. Compared to sham-operated group, there were totally 87 differentially expressed proteins (with 50 up-regulated and 37 down-regulated ones) identified in the regenerating mouse livers, most of which have not been previously related to liver regeneration. Remarkably, over 25 differentially expressed proteins were located at mitochondria. Several of the mitochondria-resident proteins which play important roles in citric acid cycle, oxidative phosphorylation and ATP production were found to be down-regulated, consistent with the recently-proposed model in which the reduction of ATP content in the remnant liver gives rise to early stress signals that contribute to the onset of liver regeneration. Pathway analysis revealed a central role of c-Myc in the regulation of liver regeneration. Conclusions Our study provides novel evidence for mitochondria as a pivotal organelle that is connected to liver regeneration, and lays the foundation for further studies on key factors and pathways involved in liver regeneration following 50% PH, a condition frequently used for partial liver transplantation and conservative liver resection.
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19
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De Souza AG, MacCormack TJ, Wang N, Li L, Goss GG. Large-Scale Proteome Profile of the Zebrafish (Danio rerio) Gill for Physiological and Biomarker Discovery Studies. Zebrafish 2009; 6:229-38. [DOI: 10.1089/zeb.2009.0591] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Andrea G. De Souza
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Tyson J. MacCormack
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Nan Wang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Liang Li
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Greg G. Goss
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
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20
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An S, Yun M, Park YG, Park GH. Proteomic identification of cytosolic proteins that undergo arginine methylation during rat liver regeneration. Electrophoresis 2009; 30:2412-21. [DOI: 10.1002/elps.200800772] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Hsieh HC, Chen YT, Li JM, Chou TY, Chang MF, Huang SC, Tseng TL, Liu CC, Chen SF. Protein profilings in mouse liver regeneration after partial hepatectomy using iTRAQ technology. J Proteome Res 2009; 8:1004-13. [PMID: 19099420 DOI: 10.1021/pr800696m] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Liver is unique in its capability to regenerate after an injury. Liver regeneration after a 2/3 partial hepatectomy served as a classical model and is adopted frequently to study the mechanism of liver regeneration. In the present study, semiquantitative analysis of protein expression in mouse liver regeneration following partial hepatectomy was performed using an iTRAQ technique. Proteins from pre-PHx control livers and livers regenerating for 24, 48 and 72 h were extracted and inspected using 4-plex isotope labeling, followed by liquid chromatography fractionation, mass spectrometry and statistical differential analysis. A total of 827 proteins were identified in this study. There were 270 proteins for which quantitative information was available at all the time points in both biologically duplicate experiments. Among the 270 proteins, Car3, Mif, Adh1, Lactb2, Fabp5, Es31, Acaa1b and LOC100044783 were consistently down-regulated, and Mat1a, Dnpep, Pabpc1, Apoa4, Oat, Hpx, Hp and Mt1 were up-regulated by a factor of at least 1.5 from that of the controls at one time point or more. The regulation of each differential protein was also demonstrated by monitoring its time-dependent expression changes during the regenerating process. We believe this is the first report to profile the protein changes in liver regeneration utilizing the iTRAQ proteomic technique.
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Affiliation(s)
- Hui-Chu Hsieh
- Biomedical Engineering Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan
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22
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Scaloni A, Codarin E, Di Maso V, Arena S, Renzone G, Tiribelli C, Quadrifoglio F, Tell G. Modern strategies to identify new molecular targets for the treatment of liver diseases: The promising role of Proteomics and Redox Proteomics investigations. Proteomics Clin Appl 2009; 3:242-62. [DOI: 10.1002/prca.200800169] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Indexed: 12/16/2022]
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23
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Malle E, Sodin-Semrl S, Kovacevic A. Serum amyloid A: an acute-phase protein involved in tumour pathogenesis. Cell Mol Life Sci 2009; 66:9-26. [PMID: 18726069 PMCID: PMC4864400 DOI: 10.1007/s00018-008-8321-x] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The synthesis of acute-phase protein serum amyloid A (SAA) is largely regulated by inflammation- associated cytokines and a high concentration of circulating SAA may represent an ideal marker for acute and chronic inflammatory diseases. However, SAA is also synthesized in extrahepatic tissues, e.g. human carcinoma metastases and cancer cell lines. An increasing body of in vitro data supports the concept of involvement of SAA in carcinogenesis and neoplastic diseases. Accumulating evidence suggests that SAA might be included in a group of biomarkers to detect a pattern of physiological events that reflect the growth of malignancy and host response. This review is meant to provide a broad overview of the many ways that SAA could contribute to tumour development, and accelerate tumour progression and metastasis, and to gain a better understanding of this acute-phase reactant as a possible link between chronic inflammation and neoplasia.
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Affiliation(s)
- E Malle
- Center of Molecular Medicine, Institute of Molecular Biology and Biochemistry, Medical University of Graz, Harrachgasse 21, A-8010 Graz, Austria.
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24
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d-Dopachrome tautomerase is a candidate for key proteins to protect the rat liver damaged by carbon tetrachloride. Toxicology 2009; 255:6-14. [DOI: 10.1016/j.tox.2008.09.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 09/09/2008] [Accepted: 09/15/2008] [Indexed: 11/23/2022]
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25
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Newberry EP, Kennedy SM, Xie Y, Luo J, Stanley SE, Semenkovich CF, Crooke RM, Graham MJ, Davidson NO. Altered hepatic triglyceride content after partial hepatectomy without impaired liver regeneration in multiple murine genetic models. Hepatology 2008; 48:1097-105. [PMID: 18697204 PMCID: PMC2577767 DOI: 10.1002/hep.22473] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
UNLABELLED Liver regeneration is impaired following partial hepatectomy (PH) in mice with genetic obesity and hepatic steatosis and also in wild-type mice fed a high-fat diet. These findings contrast with other data showing that liver regeneration is impaired in mice in which hepatic lipid accumulation is suppressed by either pharmacologic leptin administration or by disrupted glucocorticoid signaling. These latter findings suggest that hepatic steatosis may actually be required for normal liver regeneration. We have reexamined this relationship using several murine models of altered hepatic lipid metabolism. Liver fatty acid (FA) binding protein knockout mice manifested reduced hepatic triglyceride (TG) content compared to controls, with no effect on liver regeneration or hepatocyte proliferation. Examination of early adipogenic messenger RNAs revealed comparable induction in liver from both genotypes despite reduced hepatic steatosis. Following PH, hepatic TG was reduced in intestine-specific microsomal TG transfer protein deleter mice, which fail to absorb dietary fat, increased in peroxisome proliferator activated receptor alpha knockout mice, which exhibit defective FA oxidation, and unchanged (from wild-type mice) in liver-specific FA synthase knockout mice in which endogenous hepatic FA synthesis is impaired. Hepatic TG increased in the regenerating liver in all models, even in animals in which lipid accumulation is genetically constrained. However, in no model -- and over a >90-fold range of hepatic TG content -- was liver regeneration significantly impaired following PH. CONCLUSION Although hepatic TG content is widely variable and increases during liver regeneration, alterations in neither exogenous or endogenous lipid metabolic pathways, demonstrated to promote or diminish hepatic steatosis, influence hepatocyte proliferation.
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Affiliation(s)
| | - Susan M. Kennedy
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
| | - Yan Xie
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
| | - Jianyang Luo
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
| | - Susan E. Stanley
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
| | - Clay F. Semenkovich
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
| | | | | | - Nicholas O. Davidson
- Department of Medicine, School of Medicine, Washington University, St. Louis, MO
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26
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Yang YX, Zhao XX, Zhang Y. Proteomic analysis of mammary tissues from healthy cows and clinical mastitic cows for identification of disease-related proteins. Vet Res Commun 2008; 33:295-303. [PMID: 18814050 DOI: 10.1007/s11259-008-9177-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2008] [Accepted: 08/28/2008] [Indexed: 10/21/2022]
Abstract
To investigate the disease-related proteins and understand molecular mechanism of mastitis at the protein level, this project presents the protein changes in the mammary gland between healthy cows and clinical mastitic cows using two-dimensional gel electrophoresis (2-DE), after stained with colloidal Coomassie Bright Blue, six spots of differentially expressed protein were detected by PDQuest software and subjected to ion trap mass spectrometer equipped with a HPLC system, and five proteins were identified. Hemoglobin beta, kappa-casein and tryptophanyl-tRNA-synthetase (TrpRS) in healthy dairy cows, while hemoglobin beta, cytochrome C oxidase and annexin V in clinical mastitic cows were identified, they were involved in binding, transport and catalytic activity. The results may provide valuable information for the investigating of the host mammary immune system response to defense against pathogens at the protein level and potential protein targets for treatment.
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Affiliation(s)
- Yong-Xin Yang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, China
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27
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Proteomic investigation of urinary markers of carbon-tetrachloride-induced hepatic fibrosis in the Hanover Wistar rat. Cell Biol Toxicol 2008; 25:499-512. [DOI: 10.1007/s10565-008-9104-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2008] [Accepted: 08/20/2008] [Indexed: 12/25/2022]
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28
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Wang N, Mackenzie L, De Souza AG, Zhong H, Goss G, Li L. Proteome profile of cytosolic component of zebrafish liver generated by LC-ESI MS/MS combined with trypsin digestion and microwave-assisted acid hydrolysis. J Proteome Res 2007; 6:263-72. [PMID: 17203970 DOI: 10.1021/pr060367o] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The zebrafish genome has recently been sequenced and annotated allowing for high-throughput proteomic analysis. Here, we report for the first time a proteomic subset of zebrafish liver, an important organ for metabolizing toxins. Using a newly developed analytical procedure, we have identified 1204 proteins from the cytosolic component of a zebrafish liver tissue sample. Our methods involve cell-compartment fractionation of liver tissue samples, four levels of protein digestion, and off-line two-dimensional liquid chromatography (2-D LC) separations of resultant peptides. Proteins are identified using an electrospray ionization quadrupole time-of-flight tandem mass spectrometer (ESI-QTOF MS/MS), which provides high-resolution and high-accuracy mass measurement of peptide ions and their fragment ions. We demonstrate that greater proteome coverage can be achieved by combining the results obtained from four methods of protein digestion: three tryptic digests (one in buffer, one in methanol, and another in SDS), and a microwave-assisted acid hydrolysate of the protein extracts. Identified proteins--which included several groups of established protein biomarkers--were functionally classified. We discuss the functions and implications of these biomarkers within the context of zebrafish toxicology.
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Affiliation(s)
- Nan Wang
- Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada
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29
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Bakács T, Mehrishi JN, Szabados T, Varga L, Szabó M, Tusnády G. T Cells Survey the Stability of the Self: A Testable Hypothesis on the Homeostatic Role of TCR-MHC Interactions. Int Arch Allergy Immunol 2007; 144:171-82. [PMID: 17541288 DOI: 10.1159/000103282] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2007] [Accepted: 04/11/2007] [Indexed: 01/20/2023] Open
Abstract
In the lifetime of an individual, every single gene will have undergone mutation on about 10(10) separate occasions. Nevertheless, cancer occurs mainly with advancing age. Here, we hypothesize that the evolutionary pressure driving the creation of the T cell receptor (TCR) repertoire was primarily the homeostatic surveillance of the genome. The subtly variable T cells may in fact constitute an evolutionary link between the invariable innate and hypervariable B cell systems. The new model is based on the homeostatic role of T cells, suggesting that molecular complementarity between the positively selected TCR and the self peptide-presenting major histocompatibility complex molecules establishes and regulates homeostasis, strictly limiting variations of its components. Notwithstanding, the 'homeostatic role of T cells' model offers a more realistic explanation as to how a naïve clonal immune system can cope with the much faster replicating pathogens, despite a limited repertoire that is capable of facing only a small fraction of the vast antigenic universe at a time.
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Affiliation(s)
- Tibor Bakács
- Department of Probability, Alfred Rényi Institute of Mathematics, Hungarian Academy of Sciences, Budapest, Hungary
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30
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DeAngelis RA, Markiewski MM, Lambris JD. Liver regeneration: a link to inflammation through complement. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2007; 586:17-34. [PMID: 16893062 DOI: 10.1007/0-387-34134-x_2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Robert A DeAngelis
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical School, Philadelphia, PA 19104, USA
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31
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Turró S, Ingelmo-Torres M, Estanyol JM, Tebar F, Fernández MA, Albor CV, Gaus K, Grewal T, Enrich C, Pol A. Identification and characterization of associated with lipid droplet protein 1: A novel membrane-associated protein that resides on hepatic lipid droplets. Traffic 2007; 7:1254-69. [PMID: 17004324 DOI: 10.1111/j.1600-0854.2006.00465.x] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alcoholic and nonalcoholic liver steatosis and steatohepatitis are characterized by the massive accumulation of lipid droplets (LDs) in the cytosol of hepatocytes. Although LDs are ubiquitous and dynamic organelles found in the cells of a wide range of organisms, little is known about the mechanisms and sites of LD biogenesis. To examine the participation of these organelles in the pathophysiological disorders of steatotic livers, we used a combination of mass spectrometry (matrix-assisted laser desorption ionization-time of flight and LC-MS electrospray) and Western blot analysis to study the composition of LDs purified from rat liver after a partial hepatectomy. Fifty proteins were identified. Adipose differentiation-related protein was the most abundant, but other proteins such as calreticulin, TIP47, Sar1, Rab GTPases, Rho and actin were also found. In addition, we identified protein associated with lipid droplets I ALDI (tentatively named Associated with LD protein 1), a novel protein widely expressed in liver and kidney corresponding to the product of 0610006F02Rik (GI:27229118). Our results show that, upon lipid loading of the cells, ALDI translocates from the endoplasmic reticulum into nascent LDs and indicate that ALDI may be targeted to the initial lipid deposits that eventually form these droplets. Moreover, we used ALDI expression studies to view other processes related to these droplets, such as LD biogenesis, and to analyze LD dynamics. In conclusion, here we report the composition of hepatic LDs and describe a novel bona fide LD-associated protein that may provide new insights into the mechanisms and sites of LD biogenesis.
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Affiliation(s)
- Silvia Turró
- Departament de Biologia Cellular, Facultat de Medicina, Institut d'Investigacions Biomèdiques August Pi Sunyer, Universitat de Barcelona, Casanova 143, Barcelona 08036, Spain
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Guo F, Nian H, Zhang H, Huang L, Tang Y, Xiao X, He D. Proteomic analysis of the transition from quiescent to proliferating stages in rat liver hepatectomy model. Proteomics 2006; 6:3075-86. [PMID: 16619303 DOI: 10.1002/pmic.200500322] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The 70% (or 2/3) partial hepatectomy (PHx) rat liver model provides an effective medium for study of the transition and regulation of hepatocytes from quiescent to proliferating phase. Although the gene expression pattern has come under intense scrutiny, a differential proteomic study could help to reveal the mechanism of how the process is initiated and regulated. The proteomic changes were analyzed in two groups, 7 h after 70% PHx test group and sham-operation control group, by two-dimensional gel electrophoresis with 907 +/- 33 and 910 +/- 64 spots on gels, respectively. Twelve down-regulated spots and twenty-six up-regulated spots were recognized using ImageMaster software and were identified by matrix-assisted laser desorption/ionization-mass spectrometry-quadrupole time of flight mass spectrometry and/or tandem mass spectrometry reconfirmation. Some of the differential proteins were associated with stress defense, lipid metabolism, and macromolecular biosynthesis while the others were shown to be involved in regulating transcript factors associated with liver regeneration. A "proteomic model" for liver regeneration was suggested based on our data and related scientific literature to interpret the differential proteome pattern that reflected the transition of cells from quiescent to proliferating state, including but not limited to the rat liver after 70% PHx.
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Affiliation(s)
- Fuzheng Guo
- Institute of Cell Biology and Key Laboratory for Cell Proliferation and Regulation Biology, Ministry of Education, Beijing Normal University, Beijing, P.R. China 100875
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Yokoyama Y, Terai S, Ishikawa T, Aoyama K, Urata Y, Marumoto Y, Nishina H, Nakamura K, Okita K, Sakaida I. Proteomic analysis of serum marker proteins in recipient mice with liver cirrhosis after bone marrow cell transplantation. Proteomics 2006; 6:2564-70. [PMID: 16548057 DOI: 10.1002/pmic.200500018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We previously found that transplantation with bone marrow cells (BMCs) improves liver function and liver fibrosis in cirrhotic mice. In the presence of liver damage induced by carbon tetrachloride (CCl4), transplanted BMC migrated into the peri-portal region and trans-differentiated into hepatocytes that produce albumin. Thus under these conditions, BMC transplantation induces liver regeneration. Detecting serum marker proteins is important to monitor the recovery of liver function of cirrhotic mice after BMC transplantation. We therefore initially resolved proteins extracted from serum samples at 48 h after BMC transplantation by 2-DE and compared spot intensity between control and BMC groups of mice. Six protein spots increased in the BMC group compared with the control group. MS revealed that these spots comprised apolipoprotein A1 (apoA1), apolipoprotein C3 (apoC3), vitamin D-binding protein, alpha-1-antitrypsin and proteasome subunit alpha type 1. We subsequently confirmed the levels of apoA1 in serum and liver samples by immunoblotting. ApoA1 increased at early stage (48 h and 1 wk) after BMC transplantation in this mouse model of liver cirrhosis. The early elevation of apoA1 might be useful to predict liver regeneration in cirrhotic mice after BMC transplantation.
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Affiliation(s)
- Yuichiro Yokoyama
- Department of Molecular Science and Applied Medicine (Gastroenterology and Hepatology), Yamaguchi University School of Medicine, Minami Kogushi, Ube, Yamaguchi, Japan
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Petrak J, Myslivcova D, Man P, Cmejla R, Cmejlova J, Vyoral D. Proteomic analysis of iron overload in human hepatoma cells. Am J Physiol Gastrointest Liver Physiol 2006; 290:G1059-66. [PMID: 16410366 DOI: 10.1152/ajpgi.00469.2005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Iron-mediated organ damage is common in patients with iron overload diseases, namely, hereditary hemochromatosis. Massive iron deposition in parenchymal organs, particularly in the liver, causes organ dysfunction, fibrosis, cirrhosis, and also hepatocellular carcinoma. To obtain deeper insight into the poorly understood and complex cellular response to iron overload and consequent oxidative stress, we studied iron overload in liver-derived HepG2 cells. Human hepatoma HepG2 cells were exposed to a high concentration of iron for 3 days, and protein expression changes initiated by the iron overload were studied by two-dimensional electrophoresis and mass spectrometry. From a total of 1,060 spots observed, 21 spots were differentially expressed by iron overload. We identified 19 of them; 11 identified proteins were upregulated, whereas 8 identified proteins showed a decline in response to iron overload. The differentially expressed proteins are involved in iron storage, stress response and protection against oxidative stress, protein folding, energy metabolism, gene expression, cell cycle regulation, and other processes. Many of these molecules have not been previously suggested to be involved in the response to iron overload and the consequent oxidative stress.
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Affiliation(s)
- Jiri Petrak
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, Prague, Czech Republic.
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Yang M, Liu W, Wang CY, Liu T, Zhou F, Tao J, Wang Y, Li MT. Proteomic analysis of differential protein expression in early process of pancreatic regeneration in pancreatectomized rats. Acta Pharmacol Sin 2006; 27:568-78. [PMID: 16626512 DOI: 10.1111/j.1745-7254.2006.00317.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
AIM A broad-range proteomic approach was applied to investigate the complexity of the mechanisms involved in pancreatic regeneration for identification of new targets of diabetes treatment and potential markers of pancreatic stem cells. METHODS A regeneration pancreatic model was induced by 90% partial pancreatectomy (Px) in rats. Changes in the protein expression in regenerating rat pancreas on the third day after Px, as compared with rats that received sham surgery, were analyzed by using 2-D gel electrophoresis (2-DE), mass spectrometry (MS), and mass fingerprinting. RESULTS 2-DE revealed 91 spots with at least 1.5-fold increases in expression at 3 d after pancreatectomy and 53 differentially expressed proteins that were identified by peptide mass fingerprinting (PMF). These included cell growth-related, lipid and energy metabolism-related, protein and amino acid metabolism-related proteins, and signal transduction proteins. Vimentin, CK8, L-plastin, hnRNP A2/B1, and AGAT are associated with embryogenesis and cell differentiation, and may be new potential pancreatic stem cells markers. CONCLUSION The proteome profiling technique provided a broad-based and effective approach for the rapid assimilation and identification of adaptive protein changes during pancreas regeneration induced by pancreatectomy. Our data clarify the global proteome during the pancreatic proliferation and differentiation processes, which is important for better understanding of pancreatic regeneration and for discovering of protein biomarkers for pancreatic stem cells.
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Affiliation(s)
- Ming Yang
- Department of General Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Markiewski MM, DeAngelis RA, Lambris JD. Liver inflammation and regeneration: two distinct biological phenomena or parallel pathophysiologic processes? Mol Immunol 2006; 43:45-56. [PMID: 16002143 DOI: 10.1016/j.molimm.2005.06.019] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The anatomic localization and unique vasculature of the liver, along with its cell properties, make this organ an efficient line of defense against blood-borne infections, either systemic or arising in the abdomen. Liver cells can modify the host immune response by releasing immunomodulatory molecules, interacting with cells of the immune system and acting as scavengers for inflammatory mediators. However, these defensive functions do not protect the liver itself from the severe injury that may be caused by pathogens, toxins or pollutant xenobiotics. Therefore, the mammalian liver has developed a unique adaptation in the form of an astonishing regenerative capability. The complexity of regeneration requires a well-orchestrated system to control this process. Growing evidence suggest the importance of immune mechanisms as a part of this system. It seems likely that the mechanisms that serve to eliminate infections (and may simultaneously cause liver injury) are also active in restoring the structural and functional integrity of the damaged liver.
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Affiliation(s)
- Maciej M Markiewski
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical School, Protein Chemistry Laboratory, 401C Stellar-Chance Laboratories, 422 Curie Blvd., Philadelphia, PA 19104, USA.
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Affiliation(s)
- Romain Parent
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, M5-A864, P.O. Box 19024, Seattle, WA 98109-1024, USA
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Current Awareness on Comparative and Functional Genomics. Comp Funct Genomics 2005. [PMCID: PMC2447509 DOI: 10.1002/cfg.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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