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Chen Q, Pan Y, Hu Y, Chen G, Chen X, Xie Y, Wang M, Li Z, Huang J, Shi Y, Huang H, Zhang T, Wang M, Zeng P, Wang S, Chen R, Zheng Y, Zhong L, Yang H, Liang D. An L-type calcium channel blocker nimodipine exerts anti-fibrotic effects by attenuating TGF-β1 induced calcium response in an in vitro model of thyroid eye disease. EYE AND VISION (LONDON, ENGLAND) 2024; 11:37. [PMID: 39237996 PMCID: PMC11378575 DOI: 10.1186/s40662-024-00401-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 08/02/2024] [Indexed: 09/07/2024]
Abstract
BACKGROUND Thyroid eye disease (TED) is a vision-threatening autoimmune disorder. Orbital tissue fibrosis leading to intractable complications remains a troublesome issue in TED management. Exploration of novel therapeutic targets and agents to ameliorate tissue fibrosis is crucial for TED. Recent work suggests that Ca2+ signaling participates in tissue fibrosis. However, whether an alteration of Ca2+ signaling has a role in fibrogenesis during TED remains unclear. In this study, we aimed to investigate the role of Ca2+ signaling in the fibrogenesis process during TED and the potential therapeutic effects of a highly selective inhibitor of the L-type calcium channel (LTCC), nimodipine, through a TGF-β1 induced in vitro TED model. METHODS Primary culture of orbital fibroblasts (OFs) were established from orbital adipose connective tissues of patients with TED and healthy control donors. Real-time quantitative polymerase chain reaction (RT-qPCR) and RNA sequencing were used to assess the genes expression associated with LTCC in OFs. Flow cytometry, RT-qPCR, 5-ethynyl-2'-deoxyuridine (EdU) proliferation assay, wound healing assay and Western blot (WB) were used to assess the intracellular Ca2+ response on TGF-β1 stimulation, and to evaluate the potential therapeutic effects of nimodipine in the TGF-β1 induced in vitro TED model. The roles of Ca2+/calmodulin-dependent protein kinase II (CaMKII) and signal transducer and activator of transcription 1 (STAT1) in fibrogenesis during TED were determined by immunohistochemistry, WB, flow cytometry and co-immunoprecipitation assay. Selective inhibitors were used to explore the downstream signaling pathways. RESULTS LTCC inhibitor nimodipine blocked the TGF-β1 induced intracellular Ca2+ response and further reduced the expression of alpha-smooth muscle actin (α-SMA), collagen type I alpha 1 (Col1A1) and collagen type I alpha 2 (Col1A2) in OFs. Besides, nimodipine inhibited cell proliferation and migration of OFs. Moreover, our results provided evidence that activation of the CaMKII/STAT1 signaling pathway was involved in fibrogenesis during TED, and nimodipine inhibited the pro-fibrotic functions of OFs by down-regulating the CaMKII/STAT1 signaling pathway. CONCLUSIONS TGF-β1 induces an LTCC-mediated Ca2+ response, followed by activation of CaMKII/STAT1 signaling pathway, which promotes the pro-fibrotic functions of OFs and participates in fibrogenesis during TED. Nimodipine exerts potent anti-fibrotic benefits in vitro by suppressing the CaMKII/STAT1 signaling pathway. Our work deepens our understanding of the fibrogenesis process during TED and provides potential therapeutic targets and alternative candidate for TED.
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Affiliation(s)
- Qian Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
- Department of Ophthalmology, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuan Pan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Yunwei Hu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
- Ophthalmic Center, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China
| | - Guanyu Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Xiaoqing Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Yanyan Xie
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Minzhen Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Zhuang Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Jun Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
- Ophthalmic Center, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China
| | - Yuxun Shi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Haixiang Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Te Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Mei Wang
- Department of Ophthalmology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Peng Zeng
- Department of Ophthalmology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, 510120, China
| | - Sha Wang
- Eye Center of Xiangya Hospital, Central South University, Hunan Key Laboratory of Ophthalmology, Changsha, 410008, China
| | - Rongxin Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Yongxin Zheng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Liuxueying Zhong
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Huasheng Yang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China
| | - Dan Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangzhou, 510060, China.
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Gluba-Sagr A, Franczyk B, Rysz-Górzyńska M, Ławiński J, Rysz J. The Role of miRNA in Renal Fibrosis Leading to Chronic Kidney Disease. Biomedicines 2023; 11:2358. [PMID: 37760798 PMCID: PMC10525803 DOI: 10.3390/biomedicines11092358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/14/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
Chronic kidney disease (CKD) is an important health concern that is expected to be the fifth most widespread cause of death worldwide by 2040. The presence of chronic inflammation, oxidative stress, ischemia, etc., stimulates the development and progression of CKD. Tubulointerstitial fibrosis is a common pathomechanism of renal dysfunction, irrespective of the primary origin of renal injury. With time, fibrosis leads to end-stage renal disease (ESRD). Many studies have demonstrated that microRNAs (miRNAs, miRs) are involved in the onset and development of fibrosis and CKD. miRNAs are vital regulators of some pathophysiological processes; therefore, their utility as therapeutic agents in various diseases has been suggested. Several miRNAs were demonstrated to participate in the development and progression of kidney disease. Since renal fibrosis is an important problem in chronic kidney disease, many scientists have focused on the determination of miRNAs associated with kidney fibrosis. In this review, we present the role of several miRNAs in renal fibrosis and the potential pathways involved. However, as well as those mentioned above, other miRs have also been suggested to play a role in this process in CKD. The reports concerning the impact of some miRNAs on fibrosis are conflicting, probably because the expression and regulation of miRNAs occur in a tissue- and even cell-dependent manner. Moreover, different assessment modes and populations have been used. There is a need for large studies and clinical trials to confirm the role of miRs in a clinical setting. miRNAs have great potential; thus, their analysis may improve diagnostic and therapeutic strategies.
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Affiliation(s)
- Anna Gluba-Sagr
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
| | - Beata Franczyk
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
| | - Magdalena Rysz-Górzyńska
- Department of Ophthalmology and Visual Rehabilitation, Medical University of Lodz, 90-549 Lodz, Poland
| | - Janusz Ławiński
- Department of Urology, Institute of Medical Sciences, College of Medical Sciences, University of Rzeszow, 35-055 Rzeszow, Poland
| | - Jacek Rysz
- Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, 90-549 Lodz, Poland
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Guo M, Wang Z, Dai J, Fan H, Yuan N, Gao L, Peng H, Cheng X. Glycyrrhizic acid alleviates liver fibrosis in vitro and in vivo via activating CUGBP1-mediated IFN-γ/STAT1/Smad7 pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154587. [PMID: 36805480 DOI: 10.1016/j.phymed.2022.154587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/21/2022] [Accepted: 12/04/2022] [Indexed: 06/18/2023]
Abstract
BACKGROUND Hepatic fibrosis, a common pathological feature of chronic liver injuries, is a serious public health problem and lacks effective therapy. Glycyrrhizic acid (GA) is a bioactive ingredient in the root of traditional Chinese medicine licorice, and exhibits remarkable anti-viral, anti-inflammatory and hepatoprotective actions. PURPOSE Here we aimed to investigated whether GA provided a therapeutic efficacy in hepatic fibrosis and uncover its molecular mechanisms. STUDY DESIGN AND METHODS We investigated the anti-fibrosis effects of GA using CCl4-induced mouse mode of liver fibrosis as well as TGF-β1-activated human LX-2 cells and primary hepatic stellate cells (HSCs). CUGBP1-mediated IFN-γ/STAT1/Smad7 signaling was examined with immunofluorescence staining and western blot analysis. We designed and studied the binding of GA to CUGBP1 using in silico docking, and validated by microscale thermophoresis (MST) assay. RESULTS GA obviously attenuated CCl4-induced liver histological damage, and reduced serum ALT and AST levels. Meanwhile, GA decreased liver fibrogenesis markers such as α-SMA, collagen α1, HA, COL-III, and LN in the hepatic tissues. Mechanistically, GA remarkably elevated the levels of IFN-γ, p-STAT1, Smad7, and decreased CUGBP1 in vivo and in vitro. Over-expression of CUGBP1 completely abolished the anti-fibrotic effect of GA and regulation on IFN-γ/STAT1/Smad7 pathway in LX-2 cells and primary HSCs, confirming CUGBP1 played a pivotal role in the protection by GA from liver fibrosis. Further molecular docking and MST assay indicated that GA had a good binding affinity with the CUGBP1 protein. The dissociation constant (Kd) of GA and CUGBP1 was 0.293 μM. CONCLUSION Our study demonstrated for the first time that GA attenuated liver fibrosis and hepatic stellate cell activation by promoting CUGBP1-mediated IFN-γ/STAT1/Smad7 signalling pathways. GA may be a potential candidate compound for preventing or reliving liver fibrosis.
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Affiliation(s)
- Manman Guo
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Zhongda Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Jinya Dai
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Haizhen Fan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Ningning Yuan
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Liming Gao
- Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Huiping Peng
- Department of Gastroenterology, Kunshan Hospital affiliated to Nanjing University of Chinese Medicine, Kunshan, 215300, Jiangsu, China
| | - Xiaolan Cheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China; School of Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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4
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Liu J, Wang F, Luo F. The Role of JAK/STAT Pathway in Fibrotic Diseases: Molecular and Cellular Mechanisms. Biomolecules 2023; 13:biom13010119. [PMID: 36671504 PMCID: PMC9855819 DOI: 10.3390/biom13010119] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/25/2022] [Accepted: 12/27/2022] [Indexed: 01/11/2023] Open
Abstract
There are four members of the JAK family and seven of the STAT family in mammals. The JAK/STAT molecular pathway could be activated by broad hormones, cytokines, growth factors, and more. The JAK/STAT signaling pathway extensively mediates various biological processes such as cell proliferation, differentiation, migration, apoptosis, and immune regulation. JAK/STAT activation is closely related to growth and development, homeostasis, various solid tumors, inflammatory illness, and autoimmune diseases. Recently, with the deepening understanding of the JAK/STAT pathway, the relationship between JAK/STAT and the pathophysiology of fibrotic diseases was noticed, including the liver, renal, heart, bone marrow, and lung. JAK inhibitor has been approved for myelofibrosis, and subsequently, JAK/STAT may serve as a promising target for fibrosis in other organs. Therefore, this article reviews the roles and mechanisms of the JAK/STAT signaling pathway in fibrotic diseases.
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Affiliation(s)
- Jia Liu
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Faping Wang
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Fengming Luo
- Department of Pulmonary and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Pulmonary Immunology and Inflammation, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
- Correspondence: ; Tel.: +86-18980601355
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5
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Zahmatkesh ME, Jahanbakhsh M, Hoseini N, Shegefti S, Peymani A, Dabin H, Samimi R, Bolori S. Effects of Exosomes Derived From Helicobacter pylori Outer Membrane Vesicle-Infected Hepatocytes on Hepatic Stellate Cell Activation and Liver Fibrosis Induction. Front Cell Infect Microbiol 2022; 12:857570. [PMID: 35832384 PMCID: PMC9271900 DOI: 10.3389/fcimb.2022.857570] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/09/2022] [Indexed: 01/03/2023] Open
Abstract
Liver fibrosis is a multifactorial disease with microbial and non-microbial causes. In recent years, Helicobacter pylori infection has been thought to play a critical role in some extra-gastrointestinal manifestations especially liver disorders. Outer membrane vesicles (OMVs) are one of the most important discussed H. pylori virulence factors. In the current study, four different clinical strains of H. pylori were collected and their OMVs were purified using ultra-centrifugation. To investigate their effects on liver cell exosomes, co-incubation with hepatocytes was applied. After a while, hepatocyte-derived exosomes were extracted and incubated with hepatic stellate cells (HSCs) to investigate the HSC activation and fibrosis marker induction. The expression of α-SMA, TIMP-1, β-catenin, vimentin, and e-cadherin messenger RNAs (mRNA) was assessed using real-time RT-PCR, and the protein expression of α-SMA, TIMP-1, β-catenin, vimentin, and e-cadherin was evaluated by Western blotting. Our results showed that infected hepatocyte-derived exosomes induced the expression of α-SMA, TIMP-1, β-catenin, and vimentin in HSCs and e-cadherin gene and protein expression was downregulated. In the current study, we found that H. pylori-derived OMVs may aid the exosome alternation and modified exosomes may have a possible role in HSC activation and liver fibrosis progression.
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Affiliation(s)
| | - Mariyeh Jahanbakhsh
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Negin Hoseini
- Microbiology Department, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Saina Shegefti
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Peymani
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Hossein Dabin
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rasoul Samimi
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
- *Correspondence: Shahin Bolori, ; Rasoul Samimi,
| | - Shahin Bolori
- Medical Microbiology Research Center, Qazvin University of Medical Sciences, Qazvin, Iran
- Microbiology Department, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Shahin Bolori, ; Rasoul Samimi,
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Niu L, Geyer PE, Gupta R, Santos A, Meier F, Doll S, Wewer Albrechtsen NJ, Klein S, Ortiz C, Uschner FE, Schierwagen R, Trebicka J, Mann M. Dynamic human liver proteome atlas reveals functional insights into disease pathways. Mol Syst Biol 2022; 18:e10947. [PMID: 35579278 PMCID: PMC9112488 DOI: 10.15252/msb.202210947] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 12/12/2022] Open
Abstract
Deeper understanding of liver pathophysiology would benefit from a comprehensive quantitative proteome resource at cell type resolution to predict outcome and design therapy. Here, we quantify more than 150,000 sequence-unique peptides aggregated into 10,000 proteins across total liver, the major liver cell types, time course of primary cell cultures, and liver disease states. Bioinformatic analysis reveals that half of hepatocyte protein mass is comprised of enzymes and 23% of mitochondrial proteins, twice the proportion of other liver cell types. Using primary cell cultures, we capture dynamic proteome remodeling from tissue states to cell line states, providing useful information for biological or pharmaceutical research. Our extensive data serve as spectral library to characterize a human cohort of non-alcoholic steatohepatitis and cirrhosis. Dramatic proteome changes in liver tissue include signatures of hepatic stellate cell activation resembling liver cirrhosis and providing functional insights. We built a web-based dashboard application for the interactive exploration of our resource (www.liverproteome.org).
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Affiliation(s)
- Lili Niu
- Novo Nordisk Foundation Center for Protein ResearchFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Proteomics and Signal TransductionMax Planck Institute of BiochemistryMartinsriedGermany
| | - Philipp E Geyer
- Department of Proteomics and Signal TransductionMax Planck Institute of BiochemistryMartinsriedGermany
- Present address:
OmicEra Diagnostics GmbHPlaneggGermany
| | - Rajat Gupta
- Novo Nordisk Foundation Center for Protein ResearchFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Present address:
Pfizer Worldwide Research and DevelopmentSan DiegoCAUSA
| | - Alberto Santos
- Novo Nordisk Foundation Center for Protein ResearchFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Center for Health Data ScienceFaculty of Health SciencesUniversity of CopenhagenCopenhagenDenmark
- Big Data InstituteNuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Florian Meier
- Department of Proteomics and Signal TransductionMax Planck Institute of BiochemistryMartinsriedGermany
- Present address:
Functional ProteomicsJena University HospitalJenaGermany
| | - Sophia Doll
- Department of Proteomics and Signal TransductionMax Planck Institute of BiochemistryMartinsriedGermany
- Present address:
OmicEra Diagnostics GmbHPlaneggGermany
| | - Nicolai J Wewer Albrechtsen
- Novo Nordisk Foundation Center for Protein ResearchFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Clinical BiochemistryRigshospitaletUniversity of CopenhagenCopenhagenDenmark
| | - Sabine Klein
- Department of Internal Medicine IGoethe University Clinic FrankfurtFrankfurtGermany
- Department of Internal Medicine BWW University MünsterMünsterGermany
| | - Cristina Ortiz
- Department of Internal Medicine IGoethe University Clinic FrankfurtFrankfurtGermany
| | - Frank E Uschner
- Department of Internal Medicine IGoethe University Clinic FrankfurtFrankfurtGermany
- Department of Internal Medicine BWW University MünsterMünsterGermany
| | - Robert Schierwagen
- Department of Internal Medicine IGoethe University Clinic FrankfurtFrankfurtGermany
- Department of Internal Medicine BWW University MünsterMünsterGermany
| | - Jonel Trebicka
- Department of Internal Medicine IGoethe University Clinic FrankfurtFrankfurtGermany
- Department of Internal Medicine BWW University MünsterMünsterGermany
- European Foundation for the Study of Chronic Failure, EFCLIFBarcelonaSpain
| | - Matthias Mann
- Novo Nordisk Foundation Center for Protein ResearchFaculty of Health and Medical SciencesUniversity of CopenhagenCopenhagenDenmark
- Department of Proteomics and Signal TransductionMax Planck Institute of BiochemistryMartinsriedGermany
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7
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Schinagl M, Tomin T, Gindlhuber J, Honeder S, Pfleger R, Schittmayer M, Trauner M, Birner-Gruenberger R. Proteomic Changes of Activated Hepatic Stellate Cells. Int J Mol Sci 2021; 22:ijms222312782. [PMID: 34884585 PMCID: PMC8657869 DOI: 10.3390/ijms222312782] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/18/2021] [Accepted: 11/23/2021] [Indexed: 12/15/2022] Open
Abstract
Hepatic stellate cells (HSC) are the major cellular drivers of liver fibrosis. Upon liver inflammation caused by a broad range of insults including non-alcoholic fatty liver, HSC transform from a quiescent into a proliferating, fibrotic phenotype. Although much is known about the pathophysiology of this process, exact cellular processes which occur in HSC and enable this transformation remain yet to be elucidated. In order to investigate this HSC transformation, we employed a simple, yet reliable model of HSC activation via an increase in growth medium serum concentration (serum activation). For that purpose, immortalized human LX-2 HSC were exposed to either 1% or 10% fetal bovine serum (FBS). Resulting quiescent (1% FBS) and activated (10% FBS) LX-2 cells were then subjected to in-depth mass spectrometry-based proteomics analysis as well as comprehensive phenotyping. Protein network analysis of activated LX-2 cells revealed an increase in the production of ribosomal proteins and proteins related to cell cycle control and migration, resulting in higher proliferation and faster migration phenotypes. Interestingly, we also observed a decrease in the expression of cholesterol and fatty acid biosynthesis proteins in accordance with a concomitant loss of cytosolic lipid droplets during activation. Overall, this work provides an update on HSC activation characteristics using contemporary proteomic and bioinformatic analyses and presents an accessible model for HSC activation. Data are available via ProteomeXchange with identifier PXD029121.
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Affiliation(s)
- Maximilian Schinagl
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; (M.S.); (T.T.); (R.P.); (M.S.)
- Department of Pathology, Medical University of Graz, 8010 Graz, Austria; (J.G.); (S.H.)
| | - Tamara Tomin
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; (M.S.); (T.T.); (R.P.); (M.S.)
| | - Juergen Gindlhuber
- Department of Pathology, Medical University of Graz, 8010 Graz, Austria; (J.G.); (S.H.)
| | - Sophie Honeder
- Department of Pathology, Medical University of Graz, 8010 Graz, Austria; (J.G.); (S.H.)
| | - Raphael Pfleger
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; (M.S.); (T.T.); (R.P.); (M.S.)
| | - Matthias Schittmayer
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; (M.S.); (T.T.); (R.P.); (M.S.)
| | - Michael Trauner
- Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria;
| | - Ruth Birner-Gruenberger
- Institute of Chemical Technologies and Analytics, Technische Universität Wien, 1060 Vienna, Austria; (M.S.); (T.T.); (R.P.); (M.S.)
- Department of Pathology, Medical University of Graz, 8010 Graz, Austria; (J.G.); (S.H.)
- Correspondence:
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8
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Xu L, Yang C, Ma J, Zhang X, Wang Q, Xiong X. NAMPT-mediated NAD + biosynthesis suppresses activation of hepatic stellate cells and protects against CCl 4-induced liver fibrosis in mice. Hum Exp Toxicol 2021; 40:S666-S675. [PMID: 34752167 DOI: 10.1177/09603271211052991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Nicotinamide phosphoribosyltransferase (NAMPT) catalyzes the rate-limiting step in the salvage pathway of mammalian nicotinamide adenine dinucleotide (NAD+) biosynthesis. Through its NAD+-biosynthetic activity, NAMPT is able to regulate the development of hepatic steatosis and inflammation induced by diet or alcohol. However, the roles NAMPT plays in the development of liver fibrosis remain obscure. Purpose: To investigate the roles of NAMPT-mediated NAD+ biosynthesis in hepatic stellate cell (HSC) activation and liver fibrosis. Research Design: Realtime RT-PCR and western blot analyses were performed to analyze the expression of profibrogenic genes. Sirius red staining was conducted to examine the fibrosis in liver. Mouse liver fibrosis was induced by intraperitoneal injection of carbon tetrachloride (CCl4) 2 times a week for 6 weeks. Adenovirus-mediated NAMPT overexpression or nicotinamide mononucleotide (NMN) administration was carried out to study the effects of elevation of NAD+ levels on protecting CCl4-induced liver fibrosis in mice. LX2 cells or primary HSCs were used to study the role of NAMPT overexpression or NMN treatment in reducing profibrogenic gene expression in vitro. ResultsCCl4 administration suppresses NAMPT expression in liver and reduces hepatic NAD+ content. Tgfβ1 treatment decreases intracellular NAD+ levels and NAMPT expression in LX2 cells. Adenovirus-mediated NAMPT overexpression augments liver NAD+ levels, inhibits HSC activation and alleviates CCl4-induced liver fibrosis in mice. Administration of NMN also suppresses HSC activation and protects against CCl4-induced liver fibrosis in mice. Conclusions: NAMPT-mediated NAD+ biosynthesis inhibits HSC activation and protects against CCl4-induced liver fibrosis.
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Affiliation(s)
- Lin Xu
- School of Forensic Medicine, 91593Xinxiang Medical University, Xinxiang, China.,Department of Medical Genetics, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenyan Yang
- School of Forensic Medicine, 91593Xinxiang Medical University, Xinxiang, China.,Xinxiang Key Laboratory of Metabolism and Integrative Physiology, 91593Xinxiang Medical University, Xinxiang, China
| | - Jie Ma
- Xinxiang Key Laboratory of Metabolism and Integrative Physiology, 91593Xinxiang Medical University, Xinxiang, China.,Department of Human Anatomy and Histoembryology, School of Basic Medical Sciences, 91593Xinxiang Medical University, Henan, China
| | - Xinge Zhang
- School of Forensic Medicine, 91593Xinxiang Medical University, Xinxiang, China.,Xinxiang Key Laboratory of Metabolism and Integrative Physiology, 91593Xinxiang Medical University, Xinxiang, China
| | - Qingzhi Wang
- School of Forensic Medicine, 91593Xinxiang Medical University, Xinxiang, China
| | - Xiwen Xiong
- School of Forensic Medicine, 91593Xinxiang Medical University, Xinxiang, China.,Xinxiang Key Laboratory of Metabolism and Integrative Physiology, 91593Xinxiang Medical University, Xinxiang, China
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Zhu Y, Xu W, Hu W, Wang F, Zhou Y, Xu J, Gong W. Discovery and validation of novel protein markers in mucosa of portal hypertensive gastropathy. BMC Gastroenterol 2021; 21:214. [PMID: 33971821 PMCID: PMC8111717 DOI: 10.1186/s12876-021-01787-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/22/2021] [Indexed: 11/10/2022] Open
Abstract
Background Portal hypertension induced esophageal and gastric variceal bleeding is the main cause of death among patients of decompensated liver cirrhosis. Therefore, a standardized, biomarker-based test, to make an early-stage non-invasive risk assessment of portal hypertension, is highly desirable. However, no fit-for-purpose biomarkers have yet been identified. Methods We conducted a pilot study consisting of 5 portal hypertensive gastropathy (PHG) patients and 5 normal controls, sampling the gastric mucosa of normal controls and PHG patients before and after endoscopic cyanoacrylate injection, using label-free quantitative (LFQ) mass spectrometry, to identify potential biomarker candidates in gastric mucosa from PHG patients and normal controls. Then we further used parallel reaction monitoring (PRM) to verify the abundance of the targeted protein. Results LFQ analyses identified 423 significantly differentially expressed proteins. 17 proteins that significantly elevated in the gastric mucosa of PHG patients were further validated using PRM. Conclusions This is the first application of an LFQ-PRM workflow to identify and validate PHG–specific biomarkers in patient gastric mucosa samples. Our findings lay the foundation for comprehending the molecular mechanisms of PHG pathogenesis, and provide potential applications for useful biomarkers in early diagnosis and treatment. Trial registration and ethics approval: Trial registration was completed (ChiCTR2000029840) on February 25, 2020. Ethics Approvals were completed on July 17, 2017 (NYSZYYEC20180003) and February 15, 2020 (NYSZYYEC20200005). Supplementary Information The online version contains supplementary material available at 10.1186/s12876-021-01787-5.
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Affiliation(s)
- Ying Zhu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Wen Xu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Wei Hu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Fang Wang
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China
| | - Yan Zhou
- Information Management Section, Bethune International Peace Hospital, Shijiazhuang City, Hebei Province, China
| | - Jianguo Xu
- Department of Liver Disease Center, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China.
| | - Wei Gong
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, 518000, Guangdong, China.
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10
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Bai L, Lin Y, Xie J, Zhang Y, Wang H, Zheng D. MiR-27b-3p inhibits the progression of renal fibrosis via suppressing STAT1. Hum Cell 2021; 34:383-393. [PMID: 33454903 PMCID: PMC7900087 DOI: 10.1007/s13577-020-00474-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 12/14/2020] [Indexed: 01/02/2023]
Abstract
Renal fibrosis is a pathologic change in chronic kidney disease (CKD). MicroRNAs (miRNAs) have been shown to play an important role in the development of renal fibrosis. However, the biological role of miR-27b-3p in renal fibrosis remains unclear. Thus, this study aimed to investigate the role of miR-27b-3p in the progression of renal fibrosis. In this study, HK-2 cells were stimulated with transforming growth factor (TGF)-β1 for mimicking fibrosis progression in vitro. The unilateral ureteric obstruction (UUO)-induced mice renal fibrosis in vivo was established as well. The results indicated that the overexpression of miR-27b-3p significantly inhibited epithelial-to-mesenchymal transition (EMT) in TGF-β1-stimulated HK-2 cells, as shown by the decreased expressions of α-SMA, collagen III, Fibronectin and Vimentin. In addition, overexpression of miR-27b-3p markedly decreased TGF-β1-induced apoptosis in HK-2 cells, as evidenced by the decreased levels of Fas, active caspase 8 and active caspase 3. Meanwhile, dual-luciferase assay showed that miR-27b-3p downregulated signal transducers and activators of transcription 1 (STAT1) expression through direct binding with the 3′-UTR of STAT1. Furthermore, overexpression of miR-27b-3p attenuated UUO-induced renal fibrosis via downregulation of STAT1, α-SMA and collagen III. In conclusion, miR-27b-3p overexpression could alleviate renal fibrosis via suppressing STAT1 in vivo and in vitro. Therefore, miR-27b-3p might be a promising therapeutic target for the treatment of renal fibrosis.
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Affiliation(s)
- Lin Bai
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, 62# Huaihai South Road, Huai'an, 223001, Jiangsu, People's Republic of China
| | - Yongtao Lin
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, 62# Huaihai South Road, Huai'an, 223001, Jiangsu, People's Republic of China
| | - Juan Xie
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, 62# Huaihai South Road, Huai'an, 223001, Jiangsu, People's Republic of China
| | - Yiyuan Zhang
- Xuzhou Medical University, Xuzhou, 221004, Jiangsu, People's Republic of China
| | - Hongwu Wang
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, 62# Huaihai South Road, Huai'an, 223001, Jiangsu, People's Republic of China.
| | - Donghui Zheng
- Department of Nephrology, Affiliated Huai'an Hospital of Xuzhou Medical University, 62# Huaihai South Road, Huai'an, 223001, Jiangsu, People's Republic of China.
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11
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Xin S, Fang W, Li J, Li D, Wang C, Huang Q, Huang M, Zhuang W, Wang X, Chen L. Impact of STAT1 polymorphisms on crizotinib-induced hepatotoxicity in ALK-positive non-small cell lung cancer patients. J Cancer Res Clin Oncol 2021; 147:725-737. [PMID: 33387041 DOI: 10.1007/s00432-020-03476-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 11/18/2020] [Indexed: 01/01/2023]
Abstract
PURPOSE Crizotinib is the first-line small molecule tyrosine kinase inhibitor for ALK-positive non-small cell lung cancer. In this study, a retrospective pharmacogenomics investigation was conducted to explore the relationship between genes related to RTK downstream signaling pathways and crizotinib-induced hepatic toxicity in ALK-positive NSCLC patients. METHODS The variable importance analysis of random forest algorithm was applied to identify the significant features which contribute to the crizotinib sensitivity in Cancer Cell Line Encyclopedia (CCLE) database. The KEGG and reactome pathway enrichment analysis were conducted with EnrichR. The differential expression genes were identified with R package DESeq2 in CCLE liver derived cell lines between crizotinib sensitive and resistant groups. From 2012 to 2015, 42 NSCLC patients were enrolled in this study. 90 polymorphisms were genotyped using the Sequenom Massarray system. Sequencing of HGFR (c-Met) genes was carried out on the Ion Torrent Proton. RESULTS In total, 66.7% NSCLC patients suffered from crizotinib-induced liver toxicity and 11.9% progressed to severe hepatic toxicity. The features with the top importance from classification and regression random forest model were enriched in RTK downstream signaling pathways (JAK/STAT, RAS/RAF/MAPK, PI3K/AKT pathways) and immune system-related pathways. Collagen family genes (COL1A1, COL1A2, COL6A1, COL5A1) and other extracellular matrix protein (TNC, TAGLN, TENM2, EDIL3, VCAN, CNN1, SH3BP4, TAGLN), which were closely related to MAPK-ERK signaling pathways, were significantly enriched in crizotinib resistant cell lines. In multiple logistic regression, STAT1 rs10208033 (T > C) was significantly associated with crizotinib-induced liver toxicity (OR = 6.733, 95% CI 1.406-32.24, P = 0.017). Compared with non-CC, OR is 5.5 (95% CI 1.219-24.81, P = 0.027) for STAT1 rs10208033 CC genotype to develop crizotinib-induced liver toxicity. Further cell viability test in human fetal hepatocyte line, L-02, reveals that the STAT1 inhibitor might protect hepatocyte cells from the toxicity caused by crizotinib. CONCLUSION Polymorphism of rs10208033 is a potential biomarker for predicting crizotinib-induced hepatotoxicity. These results suggest that STAT1 plays an important role in crizotinib-induced hepatotoxicity. Further studies are needed to confirm our finding and understand the underlying mechanisms.
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Affiliation(s)
- Shuang Xin
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510060, People's Republic of China.,Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Wenfeng Fang
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China
| | - Jianwen Li
- CapitalBio Genomics Co., Ltd., Dongguan, 523808, China
| | - Delan Li
- Chemotherapy Department 2, Zhongshan City People's Hospital, Zhongshan, 528403, People's Republic of China
| | - Changzheng Wang
- Department of Computer Science, City University of Hong Kong, Hong Kong, China
| | - Quanfei Huang
- CapitalBio Genomics Co., Ltd., Dongguan, 523808, China
| | - Min Huang
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510060, People's Republic of China
| | - Wei Zhuang
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510060, People's Republic of China
| | - Xueding Wang
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510060, People's Republic of China.
| | - Likun Chen
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, People's Republic of China.
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12
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Dong S, Lyu X, Yuan S, Wang S, Li W, Chen Z, Yu H, Li F, Jiang Q. Oxidative stress: A critical hint in ionizing radiation induced pyroptosis. RADIATION MEDICINE AND PROTECTION 2020. [DOI: 10.1016/j.radmp.2020.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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13
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Rosso C, Caviglia GP, Younes R, Ribaldone DG, Fagoonee S, Pellicano R, Bugianesi E. Molecular mechanisms of hepatic fibrosis in chronic liver diseases. MINERVA BIOTECNOL 2020. [DOI: 10.23736/s1120-4826.20.02619-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Metabolic Signature of Hepatic Fibrosis: From Individual Pathways to Systems Biology. Cells 2019; 8:cells8111423. [PMID: 31726658 PMCID: PMC6912636 DOI: 10.3390/cells8111423] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatic fibrosis is a major cause of morbidity and mortality worldwide, as it ultimately leads to cirrhosis, which is estimated to affect up to 2% of the global population. Hepatic fibrosis is confirmed by liver biopsy, and the erroneous nature of this technique necessitates the search for noninvasive alternatives. However, current biomarker algorithms for hepatic fibrosis have many limitations. Given that the liver is the largest organ and a major metabolic hub in the body, probing the metabolic signature of hepatic fibrosis holds promise for the discovery of new markers and therapeutic targets. Regarding individual metabolic pathways, accumulating evidence shows that hepatic fibrosis leads to alterations in carbohydrate metabolism, as aerobic glycolysis is aggravated in activated hepatic stellate cells (HSCs) and the whole fibrotic liver; in amino acid metabolism, as Fischer’s ratio (branched-chain amino acids/aromatic amino acids) decreases in patients with hepatic fibrosis; and in lipid metabolism, as HSCs lose vitamin A-containing lipid droplets during transdifferentiation, and cirrhotic patients have decreased serum lipids. The current review also summarizes recent findings of metabolic alterations relevant to hepatic fibrosis based on systems biology approaches, including transcriptomics, proteomics, and metabolomics in vitro, in animal models and in humans.
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15
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FoxO1-mediated inhibition of STAT1 alleviates tubulointerstitial fibrosis and tubule apoptosis in diabetic kidney disease. EBioMedicine 2019; 48:491-504. [PMID: 31629675 PMCID: PMC6838438 DOI: 10.1016/j.ebiom.2019.09.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/27/2019] [Accepted: 09/03/2019] [Indexed: 02/06/2023] Open
Abstract
Background Tubulointerstitial fibrosis (TIF) plays an important role in the progression of diabetic kidney disease (DKD). Forkhead box O1 (FoxO1) is involved in the regulation of metabolism and cell apoptosis, but its function in renal TIF induced by DKD is less well understood. Methods Human kidney biopsies with DKD and normal controls were used to detect apoptosis and TIF induced by diabetes. A mouse model with kidney-specific overexpression of Pax2-3aFoxO1 was established to further investigate the functions of FoxO1 in vivo. The in vitro roles of FoxO1 were analyzed in HK-2 cells with 3aFoxO1-knockin (3aFoxO1-KI) or FoxO1-knockdown (FoxO1-KD) via CRISPR/Cas9. Western blot, immunohistochemistry, and chromatin immunoprecipitation were used to explore the underlying mechanisms. Findings In this study, DKD patients had increased renal TIF and apoptosis. In vivo study showed that kidney-specific overexpression of Pax2-3aFoxO1 significantly reduced the expression of p-STAT1 with resultant renal functional impairment, retarding renal TIF and apoptosis in diabetic mice. Meanwhile, We observed that FoxO1-KD in HK-2 cells aggravated the expression of p-STAT1, leading to activation of epithelial-to-mesenchymal transition (EMT) and intrinsic apoptotic pathway. Conversely, EMT and apoptosis were significantly attenuated in HK-2 cells with 3aFoxO1-KI under hyperglycemic conditions. Interpretation Taken together, these data suggest that the protection role of FoxO1 against renal TIF and apoptosis in DKD is likely in part to target STAT1 signaling, which may be a promising strategy for long-term treatment of DKD. Fund This work was supported by grants from the National Natural Science Foundation of China (grant numbers: 81570746 and 81770812).
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Pham TX, Bae M, Kim MB, Lee Y, Hu S, Kang H, Park YK, Lee JY. Nicotinamide riboside, an NAD+ precursor, attenuates the development of liver fibrosis in a diet-induced mouse model of liver fibrosis. Biochim Biophys Acta Mol Basis Dis 2019; 1865:2451-2463. [PMID: 31195117 PMCID: PMC6614025 DOI: 10.1016/j.bbadis.2019.06.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 05/28/2019] [Accepted: 06/07/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Liver fibrosis is part of the non-alcoholic fatty liver disease (NAFLD) spectrum, which currently has no approved pharmacological treatment. In this study, we investigated whether supplementation of nicotinamide riboside (NR), a nicotinamide adenine dinucleotide (NAD+) precursor, can reduce the development of liver fibrosis in a diet-induced mouse model of liver fibrosis. METHODS Male C57BL/6 J mice were fed a low-fat control (LF), a high-fat/high-sucrose/high-cholesterol control (HF) or a HF diet supplemented with NR at 400 mg/kg/day (HF-NR) for 20 weeks. Features of liver fibrosis were assessed by histological and biochemical analyses. Whole-body energy metabolism was also assessed using indirect calorimetry. Primary mouse and human hepatic stellate cells were used to determine the anti-fibrogenic effects of NR in vitro. RESULTS NR supplementation significantly reduced body weight of mice only 7 weeks after mice were on the supplementation, but did not attenuate serum alanine aminotransferase levels, liver steatosis, or liver inflammation. However, NR markedly reduced collagen accumulation in the liver. RNA-Seq analysis suggested that the expression of genes involved in NAD+ metabolism is altered in activated hepatic stellate cells (HSCs) compared to quiescent HSCs. NR inhibited the activation of HSCs in primary mouse and human HSCs. Indirect calorimetry showed that NR increased energy expenditure, likely by upregulation of β-oxidation in skeletal muscle and brown adipose tissue. CONCLUSION NR attenuated HSC activation, leading to reduced liver fibrosis in a diet-induced mouse model of liver fibrosis. The data suggest that NR may be developed as a potential preventative for human liver fibrosis.
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Affiliation(s)
- Tho X Pham
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Minkyung Bae
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Mi-Bo Kim
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Yoojin Lee
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Siqi Hu
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Hyunju Kang
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Young-Ki Park
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA
| | - Ji-Young Lee
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA.
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Hong Y, Li S, Wang J, Li Y. In vitro inhibition of hepatic stellate cell activation by the autophagy-related lipid droplet protein ATG2A. Sci Rep 2018; 8:9232. [PMID: 29915313 PMCID: PMC6006255 DOI: 10.1038/s41598-018-27686-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/18/2018] [Indexed: 02/07/2023] Open
Abstract
Clinical studies have found that moderate intake of retinol or oleic acid can enlarge the lipid droplets of hepatic stellate cells and suppress their activation. However, the link between lipid droplets and cell activation is unknown. This study compared the dynamics of lipid droplet-associated protein expression between activated and reverted stellate cells. Reversion of the activated human stellate cell line LX-2 and inhibition of primary mouse stellate cell activation were induced by retinol or oleic acid, which resulted in larger lipid droplets and the downregulation of cell activation markers. Quantitative proteomics and immunoblotting were performed to compare lipid-droplet protein profiles between activated and reverted LX-2 cells. Compared to expression in activated cells, 50 lipid-droplet proteins were upregulated, whereas 28 were downregulated upon reversion. ATG2A was significantly enriched in lipid droplets of retinol/oleic acid-treated LX-2 cells and quiescent primary stellate cells. Reduced expression of α-SMA, increased expression of perilipin-3, enlarged lipid droplets, and suppression of autophagic flux were observed in ATG2A-deficient LX2 cells. Lipid-droplet protein profile changes during the reversion of activated stellate cells might provide new insights into the molecular mechanisms linking lipid droplets to liver fibrosis. ATG2A could represent a potential new drug target for hepatic fibrosis.
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Affiliation(s)
- Yun Hong
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China. .,Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
| | - Sirui Li
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jifeng Wang
- Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Youming Li
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
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Liu X, Dai R, Ke M, Suheryani I, Meng W, Deng Y. Differential Proteomic Analysis of Dimethylnitrosamine (DMN)-Induced Liver Fibrosis. Proteomics 2017; 17. [DOI: 10.1002/pmic.201700267] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/27/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Xiujie Liu
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmceuticals; Beijing Institute of Technology; Beijing P. R. China
| | - Rongji Dai
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmceuticals; Beijing Institute of Technology; Beijing P. R. China
| | - Ming Ke
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
| | - Imran Suheryani
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
| | - Weiwei Meng
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
| | - Yulin Deng
- School of Life Science; Beijing Institute of Technology; Beijing P. R. China
- Beijing Key Laboratory for Separation and Analysis in Biomedicine and Pharmceuticals; Beijing Institute of Technology; Beijing P. R. China
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