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Sun QJ, Liu T. Subcellular distribution of prohibitin 1 in rat liver during liver regeneration and its cellular implication. World J Hepatol 2024; 16:65-74. [PMID: 38313239 PMCID: PMC10835489 DOI: 10.4254/wjh.v16.i1.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/03/2023] [Accepted: 11/28/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND The function of prohibitin 1 (Phb1) during liver regeneration (LR) remains relatively unexplored. Our previous research identified downregulation of Phb1 in rat liver mitochondria 24 h after 70% partial hepatectomy (PHx), as determined by subcellular proteomic analysis. AIM To investigate the potential role of Phb1 during LR. METHODS We examined changes in Phb1 mRNA and protein levels, subcellular distribution, and abundance in rat liver during LR following 70% PHx. We also evaluated mitochondrial changes and apoptosis using electron microscopy and flow cytometry. RNA-interference-mediated knockdown of Phb1 (PHBi) was performed in BRL-3A cells. RESULTS Compared with sham-operation control groups, Phb1 mRNA and protein levels in 70% PHx test groups were downregulated at 24 h, then upregulated at 72 and 168 h. Phb1 was mainly located in mitochondria, showed a reduced abundance at 24 h, significantly increased at 72 h, and almost recovered to normal at 168 h. Phb1 was also present in nuclei, with continuous increase in abundance observed 72 and 168 h after 70% PHx. The altered ultrastructure and reduced mass of mitochondria during LR had almost completely recovered to normal at 168 h. PHBi in BRL-3A cells resulted in increased S-phase entry, a higher number of apoptotic cells, and disruption of mitochondrial membrane potential. CONCLUSION Phb1 may contribute to maintaining mitochondrial stability and could play a role in regulating cell proliferation and apoptosis of rat liver cells during LR.
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Affiliation(s)
- Qing-Ju Sun
- Department of Clinical Laboratory, Navy No. 971 Hospital, Qingdao 266072, Shandong Province, China
| | - Tao Liu
- Department of Infectious Diseases, Navy No. 971 Hospital, Qingdao 266071, Shandong Province, China.
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Wu J, Liu H, Wang H, Wang Y, Cheng Q, Zhao R, Gao H, Fang L, Zhu F, Xue B. iTRAQ-based quantitative proteomic analysis of the liver regeneration termination phase after partial hepatectomy in mice. J Proteomics 2022; 267:104688. [PMID: 35914716 DOI: 10.1016/j.jprot.2022.104688] [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: 04/27/2022] [Revised: 07/09/2022] [Accepted: 07/25/2022] [Indexed: 01/17/2023]
Abstract
Liver regeneration (LR) is an important biological process after liver injury. As the "brake" in the process of LR, the termination phase of LR not only suppresses the continuous increase in liver volume but also effectively promotes the recovery of liver function. However, the mechanisms underlying the termination phase of LR are still not clear. In our study, we used isobaric tags for relative and absolute quantification (iTRAQ)-based quantitative proteomic analysis to determine the protein expression profiles of livers in the termination phase of mouse LR after partial hepatectomy (PH). We found that the expression of 197 proteins increased gradually during LR; in addition, 187 proteins were upregulated and 264 proteins were downregulated specifically in the termination phase of LR. The GO analysis of the proteins revealed the upregulation of "cell-cell adhesion" and "translation" and the downregulation of the "oxidation-reduction process". The KEGG pathway analysis showed that "biosynthesis of antibiotics" and "ribosomes" were significantly upregulated, while "metabolic pathways" were significantly downregulated. These analyses indicated that the termination phase of LR mainly focuses on restoring cellular structure and function. Differentially expressed proteins such as SNX5 were also screened out from biological processes. SIGNIFICANCE: The key regulatory factors in the termination phase of LR were studied by iTRAQ-based proteomics to lay a foundation for further study of the molecular mechanism and biomarkers of the termination phase of LR. This study will guide the clinical perioperative management of patients after hepatectomy.
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Affiliation(s)
- Jing Wu
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - He Liu
- General surgery Department, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Haiquan Wang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Yuqi Wang
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Qi Cheng
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China
| | - Ruochen Zhao
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Hongliang Gao
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing 210093, China.
| | - Feng Zhu
- General surgery Department, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China.
| | - Bin Xue
- Core Laboratory, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China.
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3
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Wang W, Xu L, Yang Y, Dong L, Zhao B, Lu J, Zhang T, Zhao Y. A novel prognostic marker and immunogenic membrane antigen: prohibitin (PHB) in pancreatic cancer. Clin Transl Gastroenterol 2018; 9:178. [PMID: 30185797 PMCID: PMC6125288 DOI: 10.1038/s41424-018-0044-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 01/05/2023] Open
Abstract
Background Previous study, using immunoblotting with IgG and membrane proteins, identified prohibitin (PHB) as a potential immunogenic membrane antigen. Now, investigate PHB expression and biological functions in pancreatic cancer. Methods PHB expression was analysed in PDAC cell lines, normal pancreas tissues, cancer tissues, PDAC patient sera and healthy volunteer sera using QRT-PCR, Western blotting, IHC, and ELISA, and a survival analysis and a COX regression analysis were performed. Low and high PHB expression levels were accomplished using RNA interference technology and gene transfer techniques. Cell proliferation, migration, and invasion, apoptosis-related proteins were assessed 48 h after transfection. Results PHB was generally expressed in the 8 tested PDAC cell lines. PHB was significantly increased in PDAC tissues and negatively correlated with overall survival (p < 0.01). PHB was an independent prognostic factor in PDAC (p < 0.01). PHB was increased in PDAC patient sera (p < 0.01). siRNA-PHB decreased cell growth, migration and invasion. However, PHB overexpression resulted in the opposite effects. Western blotting and Flow cytometric analysis revealed apoptosis inhibition in siRNA-PHB PDAC cells. Conclusions PHB plays a key role in modulating the malignant phenotype and apoptosis induction, which may be a novel prognostic predictor and a candidate for targeted therapy against PDAC.
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Affiliation(s)
- Weibin Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - Lai Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - Yu Yang
- Department of General Surgery, Beijing Tsinghua Chang Gung Hospital, Tsinghua University, 168 soup road, Changping District, Beijing, 102218, China
| | - LiangBo Dong
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - BangBo Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - Jun Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - Taiping Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, 1 Shuai Fu Yuan Hu Tong, Beijing, 100730, China.
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4
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Jielile J, Aibai M, Sabirhazi G, Shawutali N, Tangkejie W, Badelhan A, Nuerduola Y, Satewalede T, Buranbai D, Hunapia B, Jialihasi A, Bai J, Kizaibek M. Active Achilles tendon kinesitherapy accelerates Achilles tendon repair by promoting neurite regeneration. Neural Regen Res 2014; 7:2801-10. [PMID: 25317130 PMCID: PMC4190862 DOI: 10.3969/j.issn.1673-5374.2012.35.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Accepted: 11/04/2012] [Indexed: 01/09/2023] Open
Abstract
Active Achilles tendon kinesitherapy facilitates the functional recovery of a ruptured Achilles tendon. However, protein expression during the healing process remains a controversial issue. New Zealand rabbits, aged 14 weeks, underwent tenotomy followed immediately by Achilles tendon microsurgery to repair the Achilles tendon rupture. The tendon was then immobilized or subjected to postoperative early motion treatment (kinesitherapy). Mass spectrography results showed that after 14 days of motion treatment, 18 protein spots were differentially expressed, among which, 12 were up-regulated, consisting of gelsolin isoform b and neurite growth-related protein collapsing response mediator protein 2. Western blot analysis showed that gelsolin isoform b was up-regulated at days 7–21 of motion treatment. These findings suggest that active Achilles tendon kinesitherapy promotes the neurite regeneration of a ruptured Achilles tendon and gelsolin isoform b can be used as a biomarker for Achilles tendon healing after kinesitherapy.
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Affiliation(s)
- Jiasharete Jielile
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Minawa Aibai
- Urumqi Center for Disease Control and Prevention, Urumqi 830026, Xinjiang Uyghur Autonomous Region, China
| | - Gulnur Sabirhazi
- Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang Uyghur Autonomous Region, China
| | - Nuerai Shawutali
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Wulanbai Tangkejie
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Aynaz Badelhan
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Yeermike Nuerduola
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Turde Satewalede
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Darehan Buranbai
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Beicen Hunapia
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Ayidaer Jialihasi
- Department of Microsurgical Repair and Reconstruction, First Teaching Hospital of Xinjiang Medical University & Sports Medicine Research Center, Research Institute of Orthopedics of Xinjiang Uyghur Autonomous Region, Urumqi 830054, Xinjiang Uyghur Autonomous Region, China
| | - Jingping Bai
- Department of Orthopedics, Third Teaching Hospital of Xinjiang Medical University, Urumqi 830011, Xinjiang Uyghur Autonomous Region, China
| | - Murat Kizaibek
- The Research Institute of Kazakh Traditional Medicine of Ili Kazakh Autonomous Prefecture of Xinjiang, Yining 835000, Ili Kazakh Autonomous Prefecture of Xinjiang, China
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5
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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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Zhou TB, Qin YH. Signaling pathways of prohibitin and its role in diseases. J Recept Signal Transduct Res 2013; 33:28-36. [PMID: 23327602 DOI: 10.3109/10799893.2012.752006] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Prohibitin (PHB), appearing to be a negative regulator of cell proliferation and to be a tumor suppressor, has been connected to diverse cellular functions including cell cycle control, senescence, apoptosis and the regulation of mitochondrial activities. It is a growth regulatory gene that has pleiotropic functions in the nucleus, mitochondria and cytoplasmic compartments. However, in different tissues/cells, the expression of PHB was different, such as that it was increased in most of the cancers, but its expression was reduced in kidney diseases. Signaling pathways might be very important in the pathogenesis of diseases. This review was performed to provide a relatively complete signaling pathways flowchart for PHB to the investigators who were interested in the roles of PHB in the pathogenesis of diseases. Here, we review the signal transduction pathways of PHB and its role in the pathogenesis of diseases.
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Affiliation(s)
- Tian-Biao Zhou
- Department of Pediatric Nephrology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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Sánchez-Quiles V, Segura V, Bigaud E, He B, O'Malley BW, Santamaría E, Prieto J, Corrales FJ. Prohibitin-1 deficiency promotes inflammation and increases sensitivity to liver injury. J Proteomics 2012; 75:5783-92. [PMID: 22951295 DOI: 10.1016/j.jprot.2012.08.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Revised: 08/07/2012] [Accepted: 08/09/2012] [Indexed: 02/06/2023]
Abstract
Liver diseases are the fifth cause of mortality in Western countries, and as opposed to other major causes of mortality, their incidence is increasing. Understanding the molecular background contributing to the progression of liver ailments will surely open new perspectives for the better management of patients. The aim of this study is to elucidate mechanisms underlying the progression of liver injury associated with deficient prohibitin 1, an essential protein to maintain mitochondrial homeostasis and gene expression. PHB1+/- mice developed a more severe steatohepatitis than WT littermates when exposed to a choline and methionine deficient diet. The increased sensitivity was mediated by mitochondrial dysfunction and metabolic impairment in PHB1+/- livers, including inactivation of AMP kinase, measured under a non-restricted diet. Moreover, pro-inflammatory challenges induced higher mortality and liver injury in PHB+/- mice. The increased proliferative capacity of PHB+/- splenocytes, resulting from constitutive defects in central molecular pathways as stated by deregulation of GSK3β, Erk, Akt or SHP-1, and the concomitant overproduction of pro-inflammatory mediators in Phb1 deficient mice, might account for these effects. In light of these results it might be concluded that Phb1 deficiency is a potential driver of chronic liver diseases by inducing hepatocyte damage and inflammation.
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8
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Proteomic Analysis of Differential Protein Expression of Achilles Tendon in a Rabbit Model by Two-Dimensional Polyacrylamide Gel Electrophoresis at 21 Days Postoperation. Appl Biochem Biotechnol 2011; 165:1092-106. [DOI: 10.1007/s12010-011-9327-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 07/08/2011] [Indexed: 10/17/2022]
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9
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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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10
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Yuan X, Yan S, Zhao J, Shi D, Yuan B, Dai W, Jiao B, Zhang W, Miao M. Lipid metabolism and peroxisome proliferator-activated receptor signaling pathways participate in late-phase liver regeneration. J Proteome Res 2011; 10:1179-90. [PMID: 21192688 DOI: 10.1021/pr100960h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Liver regeneration (LR) is of great clinical significance in various liver-associated diseases. LR proceeds along a sequence of three distinct phases: priming/initiation, proliferation, and termination. Compared with the recognition of the first two phases, little is known about LR termination and structure/function reorganization. A combination of "omics" techniques, along with bioinformatics, may provide new insights into the molecular mechanism of the late-phase LR. Gene, protein, and metabolite profiles of the rat liver were determined by cDNA microarray, two-dimensional electrophoresis, and HPLC-MS analysis. Pathway enrichment analysis was performed to identify the pathways: 427 differentially expressed genes extracted from the microarray experiment revealed two expression patterns representing the early and late phase of LR. Functionally, the genes expressing at a higher level at the early phase than at the late phase were mainly involved in the response to stress, proliferation, and resistance to apoptosis, while those expressing at a lower level at the early phase than at the late phase were mainly engaged in lipid metabolism. Compared with the sham-operation control (SH) group, 5 proteins in the 70% partial hepatectomy (70%PHx) group were upregulated at the protein level, and 3 proteins were downregulated at 168 h after the 70%PHx. E-FABP, an upregulated fatty acid binding protein, was found to be involved in the peroxisome proliferator-activated receptor (PPAR) signaling pathway. The metabolomic data confirmed the enhancement of lipid metabolism by the detection of the intermediate and final metabolites. We've concluded that increased lipid metabolism and activated PPAR signaling pathways play important roles in late-phase LR.
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Affiliation(s)
- Xing Yuan
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai 200433, People's Republic of China
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Sánchez-Quiles V, Santamaría E, Segura V, Sesma L, Prieto J, Corrales FJ. Prohibitin deficiency blocks proliferation and induces apoptosis in human hepatoma cells: molecular mechanisms and functional implications. Proteomics 2010; 10:1609-20. [PMID: 20186755 DOI: 10.1002/pmic.200900757] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Prohibitin is a multifunctional protein participating in a plethora of essential cellular functions, such as cell signaling, apoptosis, survival and proliferation. In the liver, deficient prohibitin activity participates in the progression of non-alcoholic steatohepatitis and obesity, according to mechanisms that still must be elucidated. In this study, we have used a combination of transcriptomics and proteomics technologies to investigate the response of human hepatoma PLC/PRF/5 cells to prohibitin silencing to define in detail the biological function of hepatic Phb1 and to elucidate potential prohibitin-dependent mechanisms participating in the maintenance of the transformed phenotype. Abrogation of prohibitin reduced proliferation and induced apoptosis in human hepatoma cells in a mechanism dependent on NF kappaB signaling. Moreover, down-regulation of ERp29 together with down-regulation of Erlin 2 suggests ER stress. In agreement, increased C/EBP homologous protein levels, poly-ADP ribose polymerase cleavage and activation of caspase 12 and downstream caspase 7 evidenced ER stress-induced apoptosis. Down-regulation of proteasome activator complex subunit 2 and stathmin as well as accumulation of ubiquitinated proteins suggest interplay between ER stress and proteasome malfunction. Taken together, our results provide evidences for prohibitin having a central role in the maintenance of the transformed and invasive phenotype of human hepatoma cells and may further support previous studies suggesting prohibitin as a potential clinical target.
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Affiliation(s)
- Virginia Sánchez-Quiles
- Division of Hepatology and Gene Therapy, Proteomics Unit, Center for Applied Medical Research (CIMA), University of Navarra, Pamplona, Spain
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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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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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14
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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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Ruiz-Romero C, Blanco FJ. Mitochondrial proteomics and its application in biomedical research. MOLECULAR BIOSYSTEMS 2009; 5:1130-42. [DOI: 10.1039/b906296n] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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