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Karabayas M, Ibrahim HE, Roelofs AJ, Reynolds G, Kidder D, De Bari C. Vascular disease persistence in giant cell arteritis: are stromal cells neglected? Ann Rheum Dis 2024; 83:1100-1109. [PMID: 38684323 PMCID: PMC11420755 DOI: 10.1136/ard-2023-225270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 04/05/2024] [Indexed: 05/02/2024]
Abstract
Giant cell arteritis (GCA), the most common systemic vasculitis, is characterised by aberrant interactions between infiltrating and resident cells of the vessel wall. Ageing and breach of tolerance are prerequisites for GCA development, resulting in dendritic and T-cell dysfunction. Inflammatory cytokines polarise T-cells, activate resident macrophages and synergistically enhance vascular inflammation, providing a loop of autoreactivity. These events originate in the adventitia, commonly regarded as the biological epicentre of the vessel wall, with additional recruitment of cells that infiltrate and migrate towards the intima. Thus, GCA-vessels exhibit infiltrates across the vascular layers, with various cytokines and growth factors amplifying the pathogenic process. These events activate ineffective repair mechanisms, where dysfunctional vascular smooth muscle cells and fibroblasts phenotypically shift along their lineage and colonise the intima. While high-dose glucocorticoids broadly suppress these inflammatory events, they cause well known deleterious effects. Despite the emerging targeted therapeutics, disease relapse remains common, affecting >50% of patients. This may reflect a discrepancy between systemic and local mediators of inflammation. Indeed, temporal arteries and aortas of GCA-patients can show immune-mediated abnormalities, despite the treatment induced clinical remission. The mechanisms of persistence of vascular disease in GCA remain elusive. Studies in other chronic inflammatory diseases point to the fibroblasts (and their lineage cells including myofibroblasts) as possible orchestrators or even effectors of disease chronicity through interactions with immune cells. Here, we critically review the contribution of immune and stromal cells to GCA pathogenesis and analyse the molecular mechanisms by which these would underpin the persistence of vascular disease.
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Affiliation(s)
- Maira Karabayas
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Hafeez E Ibrahim
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Anke J Roelofs
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Gary Reynolds
- Centre for Immunology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Dana Kidder
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
| | - Cosimo De Bari
- Centre for Arthritis and Musculoskeletal Health, University of Aberdeen, Aberdeen, UK
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2
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Muthukrishnan SD, Qi H, Wang D, Elahi L, Pham A, Alvarado AG, Li T, Gao F, Kawaguchi R, Lai A, Kornblum HI. Low- and High-Grade Glioma-Associated Vascular Cells Differentially Regulate Tumor Growth. Mol Cancer Res 2024; 22:656-667. [PMID: 38441553 PMCID: PMC11217726 DOI: 10.1158/1541-7786.mcr-23-1069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/13/2024] [Accepted: 03/01/2024] [Indexed: 03/19/2024]
Abstract
A key feature distinguishing high-grade glioma (HG) from low-grade glioma (LG) is the extensive neovascularization and endothelial hyperproliferation. Prior work has shown that tumor-associated vasculature from HG is molecularly and functionally distinct from normal brain vasculature and expresses higher levels of protumorigenic factors that promote glioma growth and progression. However, it remains unclear whether vessels from LG also express protumorigenic factors, and to what extent they functionally contribute to glioma growth. Here, we profile the transcriptomes of glioma-associated vascular cells (GVC) from IDH-mutant (mIDH) LG and IDH-wild-type (wIDH) HG and show that they exhibit significant molecular and functional differences. LG-GVC show enrichment of extracellular matrix-related gene sets and sensitivity to antiangiogenic drugs, whereas HG-GVC display an increase in immune response-related gene sets and antiangiogenic resistance. Strikingly, conditioned media from LG-GVC inhibits the growth of wIDH glioblastoma cells, whereas HG-GVC promotes growth. In vivo cotransplantation of LG-GVC with tumor cells reduces growth, whereas HG-GVC enhances tumor growth in orthotopic xenografts. We identify ASPORIN (ASPN), a small leucine-rich repeat proteoglycan, highly enriched in LG-GVC as a growth suppressor of wIDH glioblastoma cells in vitro and in vivo. Together, these findings indicate that GVC from LG and HG are molecularly and functionally distinct and differentially regulate tumor growth. Implications: This study demonstrated that vascular cells from IDH-mutant LG and IDH-wild-type HG exhibit distinct molecular signatures and have differential effects on tumor growth via regulation of ASPN-TGFβ1-GPM6A signaling.
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Affiliation(s)
- Sree Deepthi Muthukrishnan
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
- Department of Oncology Science, College of Medicine, University of Oklahoma, Oklahoma City, Oklahoma
| | - Haocheng Qi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - David Wang
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Lubayna Elahi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Amy Pham
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Alvaro G. Alvarado
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Tie Li
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Fuying Gao
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Riki Kawaguchi
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Albert Lai
- Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, California
| | - Harley I. Kornblum
- Department of Psychiatry and Behavioral Sciences and the UCLA Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, UCLA, Los Angeles, California
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, UCLA, Los Angeles, California
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3
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Sokal-Dembowska A, Jarmakiewicz-Czaja S, Ferenc K, Filip R. Can Nutraceuticals Support the Treatment of MASLD/MASH, and thus Affect the Process of Liver Fibrosis? Int J Mol Sci 2024; 25:5238. [PMID: 38791276 PMCID: PMC11120776 DOI: 10.3390/ijms25105238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Currently, metabolic dysfunction-associated steatotic liver disease (MASLD) and metabolic dysfunction-associated steatohepatitis (MASH) are considered to be the main causes of fibrosis. In turn, fibrosis may lead to the development of hepatocellular carcinoma or advanced cirrhosis, i.e., potentially life-threatening conditions. It is likely that therapy aimed at reducing the risk of developing hepatic steatosis and inflammation could be helpful in minimizing the threat/probability of organ fibrosis. In recent years, increasing attention has been paid to the influence of nutraceuticals in the prevention and treatment of liver diseases. Therefore, the aim of this review was to describe the precise role of selected ingredients such as vitamin C, beta-carotene, omega-3 fatty acids, and curcumin. It is likely that the use of these ingredients in the treatment of patients with MASLD/MASH, along with behavioral and pharmacological therapy, may have a beneficial effect on combating inflammation, reducing oxidative stress, and thereby preventing liver damage.
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Affiliation(s)
- Aneta Sokal-Dembowska
- Institute of Health Sciences, Medical College, Rzeszow University, 35-959 Rzeszow, Poland
| | | | - Katarzyna Ferenc
- Institute of Medicine, Medical College, Rzeszow University, 35-959 Rzeszow, Poland
| | - Rafał Filip
- Institute of Medicine, Medical College, Rzeszow University, 35-959 Rzeszow, Poland
- Department of Gastroenterology with IBD Unit, Clinical Hospital No. 2, 35-301 Rzeszow, Poland
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4
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Balog S, Jeong S, Asahina K. Recruitment of large peritoneal macrophages to capsular fibrosis developed on the liver surface. FASEB J 2024; 38:e23327. [PMID: 38019178 DOI: 10.1096/fj.202301187r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/15/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023]
Abstract
Upon injury to Glisson's capsule, mesothelial cells covering the liver surface differentiate into myofibroblasts and participate in capsular fibrosis. In the fibrotic area, infiltrating macrophages are present, but their origin and role in capsular fibrosis remain elusive. In the present study, we examined whether macrophages in the peritoneal cavity migrate to the liver and participate in capsular fibrosis. Capsular fibrosis was induced by intraperitoneal injection of chlorhexidine gluconate. Chlorhexidine gluconate treatment induced disappearance of CD11bHigh F4/80High large peritoneal macrophages from the peritoneal cavity. Transplantation of TIMD4+ large peritoneal macrophages to the mouse peritoneal cavity resulted in their recruitment to the fibrotic area of the liver. Bone marrow-derived monocytes were also recruited to the chlorhexidine gluconate-induced fibrotic area upon their transplantation to the peritoneal cavity. However, bone marrow-derived macrophages, Kupffer cells, peritoneal B cells, and small peritoneal macrophages prepared from chlorhexidine gluconate-treated mice did not exhibit such potential. In the hepatic fibrotic area, peritoneal macrophages lost expression of unique markers (Gata6, Timd4) and increased expression of genes involved in inflammation (Il1b, Il6, Tnf) and extracellular matrix remodeling (Mmp13, Timp1). Depletion of peritoneal macrophages by clodronate liposomes reduced capsular fibrosis. Our data indicate that large peritoneal macrophages are recruited to the injured liver surface and promote capsular fibrosis by inducing inflammation and extracellular matrix remodeling. Modulating the function of peritoneal macrophages might be a new approach for suppressing capsular fibrosis.
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Affiliation(s)
- Steven Balog
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Soi Jeong
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
| | - Kinji Asahina
- Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, California, USA
- Central Research Laboratory, Shiga University of Medical Science, Otsu, Japan
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5
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Whitfield HJ, Berthelet J, Mangiola S, Bell C, Anderson RL, Pal B, Yeo B, Papenfuss AT, Merino D, Davis MJ. Single-cell RNA sequencing captures patient-level heterogeneity and associated molecular phenotypes in breast cancer pleural effusions. Clin Transl Med 2023; 13:e1356. [PMID: 37691350 PMCID: PMC10493486 DOI: 10.1002/ctm2.1356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 09/12/2023] Open
Abstract
BACKGROUND Malignant pleural effusions (MPEs) are a common complication of advanced cancers, particularly those adjacent to the pleura, such as lung and breast cancer. The pathophysiology of MPE formation remains poorly understood, and although MPEs are routinely used for the diagnosis of breast cancer patients, their composition and biology are poorly understood. It is difficult to distinguish invading malignant cells from resident mesothelial cells and to identify the directionality of interactions between these populations in the pleura. There is a need to characterize the phenotypic diversity of breast cancer cell populations in the pleural microenvironment, and investigate how this varies across patients. METHODS Here, we used single-cell RNA-sequencing to study the heterogeneity of 10 MPEs from seven metastatic breast cancer patients, including three Miltenyi-enriched samples using a negative selection approach. This dataset of almost 65 000 cells was analysed using integrative approaches to compare heterogeneous cell populations and phenotypes. RESULTS We identified substantial inter-patient heterogeneity in the composition of cell types (including malignant, mesothelial and immune cell populations), in expression of subtype-specific gene signatures and in copy number aberration patterns, that captured variability across breast cancer cell populations. Within individual MPEs, we distinguished mesothelial cell populations from malignant cells using key markers, the presence of breast cancer subtype expression patterns and copy number aberration patterns. We also identified pleural mesothelial cells expressing a cancer-associated fibroblast-like transcriptomic program that may support cancer growth. CONCLUSIONS Our dataset presents the first unbiased assessment of breast cancer-associated MPEs at a single cell resolution, providing the community with a valuable resource for the study of MPEs. Our work highlights the molecular and cellular diversity captured in MPEs and motivates the potential use of these clinically relevant biopsies in the development of targeted therapeutics for patients with advanced breast cancer.
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Affiliation(s)
- Holly J. Whitfield
- Department of Medical Biology, The Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Bioinformatics DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
| | - Jean Berthelet
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
| | - Stefano Mangiola
- Department of Medical Biology, The Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Bioinformatics DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
| | - Caroline Bell
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
| | - Robin L. Anderson
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
- Peter MacCallum Cancer CentreParkvilleVictoriaAustralia
- Department of Clinical Pathology, Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
| | - Bhupinder Pal
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
| | - Belinda Yeo
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
- Austin HealthHeidelbergVictoriaAustralia
| | - Anthony T. Papenfuss
- Department of Medical Biology, The Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Bioinformatics DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- Department of Clinical Pathology, Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Sir Peter MacCallum Department of OncologyThe University of MelbourneCarltonVictoriaAustralia
| | - Delphine Merino
- Department of Medical Biology, The Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Olivia Newton‐John Cancer Research InstituteHeidelbergVictoriaAustralia
- School of Cancer MedicineLa Trobe UniversityBundooraVictoriaAustralia
- Immunology DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
| | - Melissa J. Davis
- Department of Medical Biology, The Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- Bioinformatics DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
- Department of Clinical Pathology, Faculty of MedicineDentistry and Health Science, The University of MelbourneCarltonVictoriaAustralia
- The University of Queensland Diamantina InstituteThe University of QueenslandBrisbaneQueenslandAustralia
- The South Australian Immunogenomics Cancer InstituteThe University of AdelaideAdelaideSouth AustraliaAustralia
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6
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Affo S, Filliol A, Gores GJ, Schwabe RF. Fibroblasts in liver cancer: functions and therapeutic translation. Lancet Gastroenterol Hepatol 2023; 8:748-759. [PMID: 37385282 DOI: 10.1016/s2468-1253(23)00111-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 07/01/2023]
Abstract
Accumulation of fibroblasts in the premalignant or malignant liver is a characteristic feature of liver cancer, but has not been therapeutically leveraged despite evidence for pathophysiologically relevant roles in tumour growth. Hepatocellular carcinoma is a largely non-desmoplastic tumour, in which fibroblasts accumulate predominantly in the pre-neoplastic fibrotic liver and regulate the risk for hepatocellular carcinoma development through a balance of tumour-suppressive and tumour-promoting mediators. By contrast, cholangiocarcinoma is desmoplastic, with cancer-associated fibroblasts contributing to tumour growth. Accordingly, restoring the balance from tumour-promoting to tumour-suppressive fibroblasts and mediators might represent a strategy for hepatocellular carcinoma prevention, whereas in cholangiocarcinoma, fibroblasts and their mediators could be leveraged for tumour treatment. Importantly, fibroblast mediators regulating hepatocellular carcinoma development might exert opposite effects on cholangiocarcinoma growth. This Review translates the improved understanding of tumour-specific, location-specific, and stage-specific roles of fibroblasts and their mediators in liver cancer into novel and rational therapeutic concepts.
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Affiliation(s)
- Silvia Affo
- Department of Liver, Digestive System, and Metabolism, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Aveline Filliol
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gregory J Gores
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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7
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Muthukrishnan SD, Qi H, Wang D, Elahi L, Pham A, Alvarado AG, Li T, Gao F, Kawaguchi R, Lai A, Kornblum HI. Low- and high-grade glioma endothelial cells differentially regulate tumor growth. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.07.548125. [PMID: 37461434 PMCID: PMC10350040 DOI: 10.1101/2023.07.07.548125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Background A key feature distinguishing high-grade glioma (HGG) from low-grade glioma (LGG) is the extensive neovascularization and endothelial hyperproliferation. Prior work has shown that tumor endothelial cells (TEC) from HGG are molecularly and functionally distinct from normal brain EC and secrete higher levels of pro-tumorigenic factors that promote glioma growth and progression. However, it remains unclear whether TEC from LGG also express pro-tumorigenic factors, and to what extent they functionally contribute to glioma growth. Methods Transcriptomic profiling was conducted on tumor endothelial cells (TEC) from grade II/III (LGG, IDH-mutant) and grade IV HGG (IDH-wildtype). Functional differences between LGG- and HGG-TEC were evaluated using growth assays, resistance to anti-angiogenic drugs and radiation therapy. Conditioned media and specific factors from LGG- and HGG-TEC were tested on patient-derived gliomasphere lines using growth assays in vitro and in co-transplantation studies in vivo in orthotopic xenograft models. Results LGG-TEC showed enrichment of extracellular matrix and cell cycle-related gene sets and sensitivity to anti-angiogenic therapy whereas HGG-TEC displayed an increase in immune response-related gene sets and anti-angiogenic resistance. LGG- and HGG-TEC displayed opposing effects on growth and proliferation of IDH-wildtype and mutant tumor cells. Asporin (ASPN), a small leucine rich proteoglycan enriched in LGG-TEC was identified as a growth suppressor of IDH-wildtype GBM by modulating TGFΒ1-GPM6A signaling. Conclusions Our findings indicate that TEC from LGG and HGG are molecularly and functionally heterogeneous and differentially regulate the growth of IDH-wildtype and mutant tumors.
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8
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McElhinney K, Irnaten M, O’Brien C. p53 and Myofibroblast Apoptosis in Organ Fibrosis. Int J Mol Sci 2023; 24:ijms24076737. [PMID: 37047710 PMCID: PMC10095465 DOI: 10.3390/ijms24076737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/23/2023] [Accepted: 03/28/2023] [Indexed: 04/07/2023] Open
Abstract
Organ fibrosis represents a dysregulated, maladaptive wound repair response that results in progressive disruption of normal tissue architecture leading to detrimental deterioration in physiological function, and significant morbidity/mortality. Fibrosis is thought to contribute to nearly 50% of all deaths in the Western world with current treatment modalities effective in slowing disease progression but not effective in restoring organ function or reversing fibrotic changes. When physiological wound repair is complete, myofibroblasts are programmed to undergo cell death and self-clearance, however, in fibrosis there is a characteristic absence of myofibroblast apoptosis. It has been shown that in fibrosis, myofibroblasts adopt an apoptotic-resistant, highly proliferative phenotype leading to persistent myofibroblast activation and perpetuation of the fibrotic disease process. Recently, this pathological adaptation has been linked to dysregulated expression of tumour suppressor gene p53. In this review, we discuss p53 dysregulation and apoptotic failure in myofibroblasts and demonstrate its consistent link to fibrotic disease development in all types of organ fibrosis. An enhanced understanding of the role of p53 dysregulation and myofibroblast apoptosis may aid in future novel therapeutic and/or diagnostic strategies in organ fibrosis.
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Affiliation(s)
- Kealan McElhinney
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
| | - Mustapha Irnaten
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
| | - Colm O’Brien
- UCD Clinical Research Centre, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
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9
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Giri H, Biswas I, Rezaie AR. Activated protein C inhibits mesothelial-to-mesenchymal transition in experimental peritoneal fibrosis. J Thromb Haemost 2023; 21:133-144. [PMID: 36695376 PMCID: PMC10726528 DOI: 10.1016/j.jtha.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/14/2022] [Accepted: 10/25/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND In addition to its anticoagulant function in downregulating thrombin generation, activated protein C (APC) evokes pleiotropic cytoprotective signaling activities when it binds to endothelial protein C receptor (EPCR) to activate protease-activated receptor 1 (PAR1) in endothelial cells. OBJECTIVES To investigate the protective effect of APC in a chlorhexidine gluconate (CG)-induced peritoneal fibrosis model. METHODS Peritoneal fibrosis was induced in wild-type as well as EPCR- and PAR1-deficient mice via daily injection of CG (0.2 mL of 0.1% CG in 15% ethanol and 85% saline) for 21 days with or without concomitant injection of recombinant human APC derivatives (50 μg/kg of bodyweight). The expression of proinflammatory cytokines and profibrotic markers as well as collagen deposition were analyzed using established methods. RESULTS CG significantly upregulated the expression of transforming growth factor-β1 in peritoneal tissues, which culminated in the deposition of excessive extracellular matrix proteins, thickening of the peritoneal membrane, and mesothelial-to-mesenchymal transition in damaged tissues. APC potently inhibited CG-induced peritoneal fibrosis and downregulated the expression of proinflammatory cytokines, collagen deposition, Smad3 phosphorylation, and markers of mesothelial-to-mesenchymal transition (α-smooth muscle actin, vimentin, and N-cadherin). APC also inhibited transforming growth factor-β1-mediated upregulation of α-smooth muscle actin, Smad3, and fibronectin in human primary mesothelial cells. Employing signaling-selective and anticoagulant-selective variants of APC and mutant mice deficient for either EPCR or PAR1, we demonstrated that the EPCR-dependent signaling function of APC through PAR1 activation was primarily responsible for its antifibrotic activity in the CG-induced peritoneal fibrosis model. CONCLUSION APC and signaling-selective variants of APC may have therapeutic potential for preventing or treating pathologies associated with peritoneal fibrosis.
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Affiliation(s)
- Hemant Giri
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Indranil Biswas
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA
| | - Alireza R Rezaie
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
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10
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Bontempi G, Terri M, Garbo S, Montaldo C, Mariotti D, Bordoni V, Valente S, Zwergel C, Mai A, Marchetti A, Domenici A, Menè P, Battistelli C, Tripodi M, Strippoli R. Restoration of WT1/miR-769-5p axis by HDAC1 inhibition promotes MMT reversal in mesenchymal-like mesothelial cells. Cell Death Dis 2022; 13:965. [PMID: 36396626 PMCID: PMC9672101 DOI: 10.1038/s41419-022-05398-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022]
Abstract
Histone acetylation/deacetylation play an essential role in modifying chromatin structure and in regulating cell plasticity in eukaryotic cells. Therefore, histone deacetylase (HDAC) pharmacological inhibitors are promising tools in the therapy of fibrotic diseases and in cancer. Peritoneal fibrosis is a pathological process characterized by many cellular and molecular alterations, including the acquisition of invasive/pro-fibrotic abilities by mesothelial cells (MCs) through induction of mesothelial to mesenchymal transition (MMT). The aim of this study was to characterize the molecular mechanism of the antifibrotic role of HDAC1 inhibition. Specifically, treatment with MS-275, an HDAC1-3 inhibitor previously known to promote MMT reversal, induced the expression of several TGFBRI mRNA-targeting miRNAs. Among them, miR-769-5p ectopic expression was sufficient to promote MMT reversal and to limit MC migration and invasion, whereas miR-769-5p silencing further enhanced mesenchymal gene expression. These results were confirmed by HDAC1 genetic silencing. Interestingly, miR-769-5p silencing maintained mesenchymal features despite HDAC1 inhibition, thus indicating that it is necessary to drive MMT reversal induced by HDAC1 inhibition. Besides TGFBRI, miR-769-5p was demonstrated to target SMAD2/3 and PAI-1 expression directly. When analyzing molecular mechanisms underlying miR-769-5p expression, we found that the transcription factor Wilms' tumor 1 (WT1), a master gene controlling MC development, binds to the miR-769-5p promoter favoring its expression. Interestingly, both WT1 expression and binding to miR-769-5p promoter were increased by HDAC1 inhibition and attenuated by TGFβ1 treatment. Finally, we explored the significance of these observations in the cell-to-cell communication: we evaluated the ability of miR-769-5p to be loaded into extracellular vesicles (EVs) and to promote MMT reversal in recipient mesenchymal-like MCs. Treatment of fibrotic MCs with EVs isolated from miR-769-5p over-expressing MCs promoted the down-regulation of specific mesenchymal targets and the reacquisition of an epithelial-like morphology. In conclusion, we highlighted an HDAC1-WT1-miR-769-5p axis potentially relevant for therapies aimed at counteracting organ fibrosis.
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Affiliation(s)
- Giulio Bontempi
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy
| | - Michela Terri
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy
| | - Sabrina Garbo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Claudia Montaldo
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy
| | - Davide Mariotti
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy
| | - Veronica Bordoni
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy
| | - Sergio Valente
- Department of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Clemens Zwergel
- Department of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Alessandra Marchetti
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Alessandro Domenici
- Renal Unit, Department of Clinical and Molecular Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, 00189, Rome, Italy
| | - Paolo Menè
- Renal Unit, Department of Clinical and Molecular Medicine, Sant'Andrea University Hospital, Sapienza University of Rome, 00189, Rome, Italy
| | - Cecilia Battistelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Marco Tripodi
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy.
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149, Italy.
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11
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Brezovec N, Kojc N, Erman A, Hladnik M, Stergar J, Milanič M, Tomšič M, Čučnik S, Sodin-Šemrl S, Perše M, Lakota K. Molecular and Cellular Markers in Chlorhexidine-Induced Peritoneal Fibrosis in Mice. Biomedicines 2022; 10:2726. [PMID: 36359246 PMCID: PMC9687430 DOI: 10.3390/biomedicines10112726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 08/29/2023] Open
Abstract
Understanding the tissue changes and molecular mechanisms of preclinical models is essential for creating an optimal experimental design for credible translation into clinics. In our study, a chlorhexidine (CHX)-induced mouse model of peritoneal fibrosis was used to analyze histological and molecular/cellular alterations induced by 1 and 3 weeks of intraperitoneal CHX application. CHX treatment for 1 week already caused injury, degradation, and loss of mesothelial cells, resulting in local inflammation, with the most severe structural changes occurring in the peritoneum around the ventral parts of the abdominal wall. The local inflammatory response in the abdominal wall showed no prominent differences between 1 and 3 weeks. We observed an increase in polymorphonuclear cells in the blood but no evidence of systemic inflammation as measured by serum levels of serum amyloid A and interleukin-6. CHX-induced fibrosis in the abdominal wall was more pronounced after 3 weeks, but the gene expression of fibrotic markers did not change over time. Complement system molecules were strongly expressed in the abdominal wall of CHX-treated mice. To conclude, both histological and molecular changes were already present in week 1, allowing examination at the onset of fibrosis. This is crucial information for refining further experiments and limiting the amount of unnecessary animal suffering.
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Affiliation(s)
- Neža Brezovec
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Nika Kojc
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Andreja Erman
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Matjaž Hladnik
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, 6000 Koper, Slovenia
| | - Jošt Stergar
- Reactor Physics Department, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Matija Milanič
- Reactor Physics Department, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
- Department of Complex Matter, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
| | - Matija Tomšič
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Saša Čučnik
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Snežna Sodin-Šemrl
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, 6000 Koper, Slovenia
| | - Martina Perše
- Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Katja Lakota
- Department of Rheumatology, University Medical Centre Ljubljana, 1000 Ljubljana, Slovenia
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, 6000 Koper, Slovenia
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12
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Wang R, Guo T, Li J. Mechanisms of Peritoneal Mesothelial Cells in Peritoneal Adhesion. Biomolecules 2022; 12:biom12101498. [PMID: 36291710 PMCID: PMC9599397 DOI: 10.3390/biom12101498] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 11/24/2022] Open
Abstract
A peritoneal adhesion (PA) is a fibrotic tissue connecting the abdominal or visceral organs to the peritoneum. The formation of PAs can induce a variety of clinical diseases. However, there is currently no effective strategy for the prevention and treatment of PAs. Damage to peritoneal mesothelial cells (PMCs) is believed to cause PAs by promoting inflammation, fibrin deposition, and fibrosis formation. In the early stages of PA formation, PMCs undergo mesothelial–mesenchymal transition and have the ability to produce an extracellular matrix. The PMCs may transdifferentiate into myofibroblasts and accelerate the formation of PAs. Therefore, the aim of this review was to understand the mechanism of action of PMCs in PAs, and to offer a theoretical foundation for the treatment and prevention of PAs.
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Affiliation(s)
- Ruipeng Wang
- The First School of Clinical Medical, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Tiankang Guo
- Department of General Surgery, Gansu Provincial Hospital, Lanzhou 730030, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730030, China
| | - Junliang Li
- The First School of Clinical Medical, Gansu University of Chinese Medicine, Lanzhou 730030, China
- Department of General Surgery, Gansu Provincial Hospital, Lanzhou 730030, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730030, China
- Correspondence:
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13
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Lua I, Balog S, Asahina K. TAZ/WWTR1 mediates liver mesothelial-mesenchymal transition induced by stiff extracellular environment, TGF-β1, and lysophosphatidic acid. J Cell Physiol 2022; 237:2561-2573. [PMID: 35445400 DOI: 10.1002/jcp.30750] [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: 09/28/2021] [Revised: 02/14/2022] [Accepted: 03/04/2022] [Indexed: 11/08/2022]
Abstract
Mesothelial cells cover the surface of the internal organs and the walls of body cavities, facilitating the movement between organs by secretion of a lubricating fluid. Upon injury, mesothelial cells undergo a mesothelial-mesenchymal transition (MMT) and give rise to myofibroblasts during organ fibrosis, including in the liver. Although transforming growth factor-β1 (TGF-β1) was shown to induce MMT, molecular and cellular mechanisms underlying MMT remain to be clarified. In the present study, we examined how the extracellular environment, soluble factors, and cell density control the phenotype of liver mesothelial cells by culturing them at different cell densities or on hydrogels of different stiffness. We found that TGF-β1 does not fully induce MMT in mesothelial cells cultured at high cell density or in the absence of fetal bovine serum. Extracellular lysophosphatidic acid (LPA) synergistically induced MMT in the presence of TGF-β1 in mesothelial cells. LPA induced nuclear localization of WW domain-containing transcription regulator1 (WWTR1/TAZ) and knockdown of Taz, which suppressed LPA-induced MMT. Mesothelial cells cultured on stiff hydrogels upregulated nuclear localization of TAZ and myofibroblastic differentiation. Knockdown of Taz suppressed MMT of mesothelial cells cultured on stiff hydrogels, but inhibition of TGF-β1 signaling failed to suppress MMT. Our data indicate that TAZ mediates MMT induced by TGF-β1, LPA, and a stiff matrix. The microenvironment of a stiff extracellular matrix is a strong inducer of MMT.
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Affiliation(s)
- Ingrid Lua
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Steven Balog
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Kinji Asahina
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, California, USA.,Central Research Laboratory, Shiga University of Medical Science, Shiga, Japan
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14
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Capeling MM, Huang S, Childs CJ, Wu JH, Tsai YH, Wu A, Garg N, Holloway EM, Sundaram N, Bouffi C, Helmrath M, Spence JR. Suspension culture promotes serosal mesothelial development in human intestinal organoids. Cell Rep 2022; 38:110379. [PMID: 35172130 PMCID: PMC9002973 DOI: 10.1016/j.celrep.2022.110379] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 09/08/2021] [Accepted: 01/24/2022] [Indexed: 02/07/2023] Open
Abstract
Pluripotent-stem-cell-derived human intestinal organoids (HIOs) model some aspects of intestinal development and disease, but current culture methods do not fully recapitulate the diverse cell types and complex organization of the human intestine and are reliant on 3D extracellular matrix or hydrogel systems, which limit experimental control and translational potential for regenerative medicine. We describe suspension culture as a simple, low-maintenance method for culturing HIOs and for promoting in vitro differentiation of an organized serosal mesothelial layer that is similar to primary human intestinal serosal mesothelium based on single-cell RNA sequencing and histological analysis. Functionally, HIO serosal mesothelium has the capacity to differentiate into smooth-muscle-like cells and exhibits fibrinolytic activity. An inhibitor screen identifies Hedgehog and WNT signaling as regulators of human serosal mesothelial differentiation. Collectively, suspension HIOs represent a three-dimensional model to study the human serosal mesothelium.
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Affiliation(s)
- Meghan M Capeling
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI 48109, USA
| | - Sha Huang
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Charlie J Childs
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Joshua H Wu
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Yu-Hwai Tsai
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Angeline Wu
- Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Neil Garg
- School of Kinesiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Emily M Holloway
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Nambirajan Sundaram
- Division of Pediatric General and Thoracic Surgery Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229, USA
| | - Carine Bouffi
- Division of Pediatric General and Thoracic Surgery Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229, USA
| | - Michael Helmrath
- Division of Pediatric General and Thoracic Surgery Cincinnati Children's Hospital Research Foundation, Cincinnati, OH 45229, USA
| | - Jason R Spence
- Department of Biomedical Engineering, University of Michigan College of Engineering, Ann Arbor, MI 48109, USA; Department of Internal Medicine, Gastroenterology, University of Michigan Medical School, Ann Arbor, MI 48109, USA; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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15
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Zhang W, Conway SJ, Liu Y, Snider P, Chen H, Gao H, Liu Y, Isidan K, Lopez KJ, Campana G, Li P, Ekser B, Francis H, Shou W, Kubal C. Heterogeneity of Hepatic Stellate Cells in Fibrogenesis of the Liver: Insights from Single-Cell Transcriptomic Analysis in Liver Injury. Cells 2021; 10:cells10082129. [PMID: 34440898 PMCID: PMC8391930 DOI: 10.3390/cells10082129] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 12/11/2022] Open
Abstract
Background & Aims: Liver fibrosis is a pathological healing process resulting from hepatic stellate cell (HSC) activation and the generation of myofibroblasts from activated HSCs. The precise underlying mechanisms of liver fibrogenesis are still largely vague due to lack of understanding the functional heterogeneity of activated HSCs during liver injury. Approach and Results: In this study, to define the mechanism of HSC activation, we performed the transcriptomic analysis at single-cell resolution (scRNA-seq) on HSCs in mice treated with carbon tetrachloride (CCl4). By employing LRAT-Cre:Rosa26mT/mG mice, we were able to isolate an activated GFP-positive HSC lineage derived cell population by fluorescence-activated cell sorter (FACS). A total of 8 HSC subpopulations were identified based on an unsupervised analysis. Each HSC cluster displayed a unique transcriptomic profile, despite all clusters expressing common mouse HSC marker genes. We demonstrated that one of the HSC subpopulations expressed high levels of mitosis regulatory genes, velocity, and monocle analysis indicated that these HSCs are at transitioning and proliferating phases at the beginning of HSCs activation and will eventually give rise to several other HSC subtypes. We also demonstrated cell clusters representing HSC-derived mature myofibroblast populations that express myofibroblasts hallmark genes with unique contractile properties. Most importantly, we found a novel HSC cluster that is likely to be critical in liver regeneration, immune reaction, and vascular remodeling, in which the unique profiles of genes such as Rgs5, Angptl6, and Meg3 are highly expressed. Lastly, we demonstrated that the heterogeneity of HSCs in the injured mouse livers is closely similar to that of cirrhotic human livers. Conclusions: Collectively, our scRNA-seq data provided insight into the landscape of activated HSC populations and the dynamic transitional pathway from HSC to myofibroblasts in response to liver injury.
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Affiliation(s)
- Wenjun Zhang
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Simon J Conway
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Ying Liu
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Paige Snider
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Hanying Chen
- Genome Editing Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Hongyu Gao
- The Center for Medical Genomics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Yunlong Liu
- The Center for Medical Genomics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Kadir Isidan
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Kevin J Lopez
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Gonzalo Campana
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Ping Li
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Burcin Ekser
- Division of Transplant Surgery, Indiana University, Indianapolis, IN 46202, USA
| | - Heather Francis
- Division of Gastroenterology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Weinian Shou
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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16
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Wilm TP, Tanton H, Mutter F, Foisor V, Middlehurst B, Ward K, Benameur T, Hastie N, Wilm B. Restricted differentiative capacity of Wt1-expressing peritoneal mesothelium in postnatal and adult mice. Sci Rep 2021; 11:15940. [PMID: 34354169 PMCID: PMC8342433 DOI: 10.1038/s41598-021-95380-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 07/23/2021] [Indexed: 01/13/2023] Open
Abstract
Previously, genetic lineage tracing based on the mesothelial marker Wt1, appeared to show that peritoneal mesothelial cells have a range of differentiative capacities and are the direct progenitors of vascular smooth muscle in the intestine. However, it was not clear whether this was a temporally limited process or continued throughout postnatal life. Here, using a conditional Wt1-based genetic lineage tracing approach, we demonstrate that the postnatal and adult peritoneum covering intestine, mesentery and body wall only maintained itself and failed to contribute to other visceral tissues. Pulse-chase experiments of up to 6 months revealed that Wt1-expressing cells remained confined to the peritoneum and failed to differentiate into cellular components of blood vessels or other tissues underlying the peritoneum. Our data confirmed that the Wt1-lineage system also labelled submesothelial cells. Ablation of Wt1 in adult mice did not result in changes to the intestinal wall architecture. In the heart, we observed that Wt1-expressing cells maintained the epicardium and contributed to coronary vessels in newborn and adult mice. Our results demonstrate that Wt1-expressing cells in the peritoneum have limited differentiation capacities, and that contribution of Wt1-expressing cells to cardiac vasculature is based on organ-specific mechanisms.
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Affiliation(s)
- Thomas P Wilm
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Helen Tanton
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.,Department of Oncologic Pathology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - Fiona Mutter
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.,ZIK Plasmatis "Plasma Redox Effects", Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - Veronica Foisor
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.,Department of Chemistry, University of Warwick, Coventry, UK
| | - Ben Middlehurst
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Kelly Ward
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Tarek Benameur
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.,Department of Biomedical Sciences, College of Medicine, King Faisal University, Al Ahsa, Kingdom of Saudi Arabia
| | - Nicholas Hastie
- MRC Human Genetics Unit, University of Edinburgh, Edinburgh, UK
| | - Bettina Wilm
- Department of Molecular Physiology and Cell Signalling, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
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17
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Wang X, Copmans D, de Witte PAM. Using Zebrafish as a Disease Model to Study Fibrotic Disease. Int J Mol Sci 2021; 22:ijms22126404. [PMID: 34203824 PMCID: PMC8232822 DOI: 10.3390/ijms22126404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023] Open
Abstract
In drug discovery, often animal models are used that mimic human diseases as closely as possible. These animal models can be used to address various scientific questions, such as testing and evaluation of new drugs, as well as understanding the pathogenesis of diseases. Currently, the most commonly used animal models in the field of fibrosis are rodents. Unfortunately, rodent models of fibrotic disease are costly and time-consuming to generate. In addition, present models are not very suitable for screening large compounds libraries. To overcome these limitations, there is a need for new in vivo models. Zebrafish has become an attractive animal model for preclinical studies. An expanding number of zebrafish models of human disease have been documented, for both acute and chronic diseases. A deeper understanding of the occurrence of fibrosis in zebrafish will contribute to the development of new and potentially improved animal models for drug discovery. These zebrafish models of fibrotic disease include, among others, cardiovascular disease models, liver disease models (categorized into Alcoholic Liver Diseases (ALD) and Non-Alcoholic Liver Disease (NALD)), and chronic pancreatitis models. In this review, we give a comprehensive overview of the usage of zebrafish models in fibrotic disease studies, highlighting their potential for high-throughput drug discovery and current technical challenges.
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Affiliation(s)
- Xixin Wang
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KULeuven-University of Leuven, O&N II Herestraat 49-Box 824, 3000 Leuven, Belgium; (X.W.); (D.C.)
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan 250103, China
| | - Daniëlle Copmans
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KULeuven-University of Leuven, O&N II Herestraat 49-Box 824, 3000 Leuven, Belgium; (X.W.); (D.C.)
| | - Peter A. M. de Witte
- Laboratory for Molecular Biodiscovery, Department of Pharmaceutical and Pharmacological Sciences, KULeuven-University of Leuven, O&N II Herestraat 49-Box 824, 3000 Leuven, Belgium; (X.W.); (D.C.)
- Correspondence: ; Tel.: +32-16-323432
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18
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Acharya P, Chouhan K, Weiskirchen S, Weiskirchen R. Cellular Mechanisms of Liver Fibrosis. Front Pharmacol 2021; 12:671640. [PMID: 34025430 PMCID: PMC8134740 DOI: 10.3389/fphar.2021.671640] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/21/2021] [Indexed: 12/12/2022] Open
Abstract
The liver is a central organ in the human body, coordinating several key metabolic roles. The structure of the liver which consists of the distinctive arrangement of hepatocytes, hepatic sinusoids, the hepatic artery, portal vein and the central vein, is critical for its function. Due to its unique position in the human body, the liver interacts with components of circulation targeted for the rest of the body and in the process, it is exposed to a vast array of external agents such as dietary metabolites and compounds absorbed through the intestine, including alcohol and drugs, as well as pathogens. Some of these agents may result in injury to the cellular components of liver leading to the activation of the natural wound healing response of the body or fibrogenesis. Long-term injury to liver cells and consistent activation of the fibrogenic response can lead to liver fibrosis such as that seen in chronic alcoholics or clinically obese individuals. Unidentified fibrosis can evolve into more severe consequences over a period of time such as cirrhosis and hepatocellular carcinoma. It is well recognized now that in addition to external agents, genetic predisposition also plays a role in the development of liver fibrosis. An improved understanding of the cellular pathways of fibrosis can illuminate our understanding of this process, and uncover potential therapeutic targets. Here we summarized recent aspects in the understanding of relevant pathways, cellular and molecular drivers of hepatic fibrosis and discuss how this knowledge impact the therapy of respective disease.
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Affiliation(s)
- Pragyan Acharya
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Komal Chouhan
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Sabine Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH University Hospital Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry, RWTH University Hospital Aachen, Aachen, Germany
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19
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Post-Surgical Peritoneal Scarring and Key Molecular Mechanisms. Biomolecules 2021; 11:biom11050692. [PMID: 34063089 PMCID: PMC8147932 DOI: 10.3390/biom11050692] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 02/06/2023] Open
Abstract
Post-surgical adhesions are internal scar tissue and a major health and economic burden. Adhesions affect and involve the peritoneal lining of the abdominal cavity, which consists of a continuous mesothelial covering of the cavity wall and majority of internal organs. Our understanding of the full pathophysiology of adhesion formation is limited by the fact that the mechanisms regulating normal serosal repair and regeneration of the mesothelial layer are still being elucidated. Emerging evidence suggests that mesothelial cells do not simply form a passive barrier but perform a wide range of important regulatory functions including maintaining a healthy peritoneal homeostasis as well as orchestrating events leading to normal repair or pathological outcomes following injury. Here, we summarise recent advances in our understanding of serosal repair and adhesion formation with an emphasis on molecular mechanisms and novel gene expression signatures associated with these processes. We discuss changes in mesothelial biomolecular marker expression during peritoneal development, which may help, in part, to explain findings in adults from lineage tracing studies using experimental adhesion models. Lastly, we highlight examples of where local tissue specialisation may determine a particular response of peritoneal cells to injury.
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20
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Ito T, Shintani Y, Fields L, Shiraishi M, Podaru MN, Kainuma S, Yamashita K, Kobayashi K, Perretti M, Lewis-McDougall F, Suzuki K. Cell barrier function of resident peritoneal macrophages in post-operative adhesions. Nat Commun 2021; 12:2232. [PMID: 33854051 PMCID: PMC8046819 DOI: 10.1038/s41467-021-22536-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 03/15/2021] [Indexed: 12/20/2022] Open
Abstract
Post-operative adhesions are a leading cause of abdominal surgery-associated morbidity. Exposed fibrin clots on the damaged peritoneum, in which the mesothelial barrier is disrupted, readily adhere to surrounding tissues, resulting in adhesion formation. Here we show that resident F4/80HighCD206− peritoneal macrophages promptly accumulate on the lesion and form a ‘macrophage barrier’ to shield fibrin clots in place of the lost mesothelium in mice. Depletion of this macrophage subset or blockage of CD11b impairs the macrophage barrier and exacerbates adhesions. The macrophage barrier is usually insufficient to fully preclude the adhesion formation; however, it could be augmented by IL-4-based treatment or adoptive transfer of this macrophage subset, resulting in robust prevention of adhesions. By contrast, monocyte-derived recruited peritoneal macrophages are not involved in the macrophage barrier. These results highlight a previously unidentified cell barrier function of a specific macrophage subset, also proposing an innovative approach to prevent post-operative adhesions. Peritoneal adhesions are a major cause of complications after abdominal surgery. Here the authors use a post-operative abdominal adhesion model in mice to show that resident F4/80HighCD206− macrophages form a protective barrier that can be enhanced by IL-4 administration or adoptive transfer of these cells.
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Affiliation(s)
- Tomoya Ito
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Yusuke Shintani
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Laura Fields
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Manabu Shiraishi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mihai-Nicolae Podaru
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Satoshi Kainuma
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Kizuku Yamashita
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Kazuya Kobayashi
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mauro Perretti
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Fiona Lewis-McDougall
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Ken Suzuki
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
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21
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Zhang S, Xu Z, Wen X, Wei C. A nano chitosan membrane barrier prepared via Nanospider technology with non-toxic solvent for peritoneal adhesions' prevention. J Biomater Appl 2021; 36:321-331. [PMID: 33840253 DOI: 10.1177/08853282211008109] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Peritoneal adhesion is one of the most common postsurgical complications and can cause bowel obstruction, pelvic pain, and infertility. Setting up a physical barrier directly between the injured site and surrounding tissues is an effective solution for preventing this adverse situation. This study investigated a chitosan electrospun membrane (CSEM) as a potent anti-adhesion barrier, which was prepared by a needleless technology called Nanospider. Scanning electron microscopy revealed that CSEM is a laminated nanofiber with good mechanical properties. The fiber is uniform with the diameter distributing in the range of 100-120 nm. The tensile strength can reach 27.45 ± 6.30 MPa with a maximum elongation at break of 18.50 ± 1.44%, which makes it stick easily to damaged parts but not to be easily damaged by tissue friction. The growth of S. aureus on CSEM was 59.18% lower than the control at 10 h, which indicates its better antibacterial property. In addition, CSEM has good coagulant and biocompatibility characteristics. It can perform hemostatic function within 10 min and the L929 mouse fibroblast viability on it was 92.18% ± 1.08% on the seventh day. In vivo experiments indicated that CSEM significantly prevented peritoneal adhesions within four weeks after surgery with wound surface coverage. These results indicate that CSEM is a promising anti-adhesion barrier material.
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Affiliation(s)
- Shuo Zhang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Zhuoyue Xu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai, China
| | - Xuejun Wen
- School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Changzheng Wei
- Shanghai Qisheng Biological Preparation Co. Ltd., Shanghai, China
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22
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Terri M, Trionfetti F, Montaldo C, Cordani M, Tripodi M, Lopez-Cabrera M, Strippoli R. Mechanisms of Peritoneal Fibrosis: Focus on Immune Cells-Peritoneal Stroma Interactions. Front Immunol 2021; 12:607204. [PMID: 33854496 PMCID: PMC8039516 DOI: 10.3389/fimmu.2021.607204] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 01/19/2021] [Indexed: 12/12/2022] Open
Abstract
Peritoneal fibrosis is characterized by abnormal production of extracellular matrix proteins leading to progressive thickening of the submesothelial compact zone of the peritoneal membrane. This process may be caused by a number of insults including pathological conditions linked to clinical practice, such as peritoneal dialysis, abdominal surgery, hemoperitoneum, and infectious peritonitis. All these events may cause acute/chronic inflammation and injury to the peritoneal membrane, which undergoes progressive fibrosis, angiogenesis, and vasculopathy. Among the cellular processes implicated in these peritoneal alterations is the generation of myofibroblasts from mesothelial cells and other cellular sources that are central in the induction of fibrosis and in the subsequent functional deterioration of the peritoneal membrane. Myofibroblast generation and activity is actually integrated in a complex network of extracellular signals generated by the various cellular types, including leukocytes, stably residing or recirculating along the peritoneal membrane. Here, the main extracellular factors and the cellular players are described with emphasis on the cross-talk between immune system and cells of the peritoneal stroma. The understanding of cellular and molecular mechanisms underlying fibrosis of the peritoneal membrane has both a basic and a translational relevance, since it may be useful for setup of therapies aimed at counteracting the deterioration as well as restoring the homeostasis of the peritoneal membrane.
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Affiliation(s)
- Michela Terri
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
- National Institute for Infectious Diseases L. Spallanzani, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Flavia Trionfetti
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
- National Institute for Infectious Diseases L. Spallanzani, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Claudia Montaldo
- National Institute for Infectious Diseases L. Spallanzani, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Marco Cordani
- instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA) Nanociencia, Madrid, Spain
| | - Marco Tripodi
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
- National Institute for Infectious Diseases L. Spallanzani, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Manuel Lopez-Cabrera
- Programa de Homeostasis de Tejidos y Organos, Centro de Biología Molecular “Severo Ochoa”-Consejo Superior de Investigaciones Científicas (CSIC), Madrid, Spain
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
- National Institute for Infectious Diseases L. Spallanzani, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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23
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Suppression of Peritoneal Fibrosis by Sonoporation of Hepatocyte Growth Factor Gene-Encoding Plasmid DNA in Mice. Pharmaceutics 2021; 13:pharmaceutics13010115. [PMID: 33477422 PMCID: PMC7829751 DOI: 10.3390/pharmaceutics13010115] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/15/2021] [Accepted: 01/15/2021] [Indexed: 12/14/2022] Open
Abstract
Gene therapy is expected to be used for the treatment of peritoneal fibrosis, which is a serious problem associated with long-term peritoneal dialysis. Hepatocyte growth factor (HGF) is a well-known anti-fibrotic gene. We developed an ultrasound and nanobubble-mediated (sonoporation) gene transfection system, which selectively targets peritoneal tissues. Thus, we attempted to treat peritoneal fibrosis by sonoporation-based human HGF (hHGF) gene transfection in mice. To prepare a model of peritoneal fibrosis, mice were intraperitoneally injected with chlorhexidine digluconate. We evaluated the preventive and curative effects of sonoporation-based hHGF transfection by analyzing the following factors: hydroxyproline level, peritoneum thickness, and the peritoneal equilibration test. The transgene expression characteristics of sonoporation were also evaluated using multicolor deep imaging. In early-stage fibrosis in mice, transgene expression by sonoporation was observed in the submesothelial layer. Sonoporation-based hHGF transfection showed not only a preventive effect but also a curative effect for early-stage peritoneal fibrosis. Sonoporation-based hHGF transfection may be suitable for the treatment of peritoneal fibrosis regarding the transfection characteristics of transgene expression in the peritoneum under fibrosis.
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24
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Biffi G, Tuveson DA. Diversity and Biology of Cancer-Associated Fibroblasts. Physiol Rev 2021; 101:147-176. [PMID: 32466724 PMCID: PMC7864232 DOI: 10.1152/physrev.00048.2019] [Citation(s) in RCA: 584] [Impact Index Per Article: 194.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 02/08/2023] Open
Abstract
Efforts to develop anti-cancer therapies have largely focused on targeting the epithelial compartment, despite the presence of non-neoplastic stromal components that substantially contribute to the progression of the tumor. Indeed, cancer cell survival, growth, migration, and even dormancy are influenced by the surrounding tumor microenvironment (TME). Within the TME, cancer-associated fibroblasts (CAFs) have been shown to play several roles in the development of a tumor. They secrete growth factors, inflammatory ligands, and extracellular matrix proteins that promote cancer cell proliferation, therapy resistance, and immune exclusion. However, recent work indicates that CAFs may also restrain tumor progression in some circumstances. In this review, we summarize the body of work on CAFs, with a particular focus on the most recent discoveries about fibroblast heterogeneity, plasticity, and functions. We also highlight the commonalities of fibroblasts present across different cancer types, and in normal and inflammatory states. Finally, we present the latest advances regarding therapeutic strategies targeting CAFs that are undergoing preclinical and clinical evaluation.
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Affiliation(s)
- Giulia Biffi
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York; Lustgarten Foundation Pancreatic Cancer Research Laboratory, Cold Spring Harbor, New York; and Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
| | - David A Tuveson
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York; Lustgarten Foundation Pancreatic Cancer Research Laboratory, Cold Spring Harbor, New York; and Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, United Kingdom
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25
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Higuchi C, Kuriyama J, Sakura H. Effect of lactate as a peritoneal dialysis fluid buffer on rat peritoneal mesothelial cells. RENAL REPLACEMENT THERAPY 2020. [DOI: 10.1186/s41100-020-00306-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Neutral, low-glucose degradation product (GDP) peritoneal dialysis fluid (PDF) is less damaging to the peritoneum than conventional PDF but is still insufficient for biocompatibility. One remaining issue is the problem of buffering.
Methods
Using cultured rat peritoneal mesothelial cells (PMCs), the present study examined the difference between the effects of neutral low-GDP lactate PDF and neutral low-GDP bicarbonate/lactate PDF on cells. The effects of lactate stimulation on these cells were also examined.
Results
Lactate PDF enhanced mRNA expressions of α-smooth muscle actin (αSMA) and type 1 and type 3 collagens and lowered expression of e-cadherin mRNA in PMCs compared to bicarbonate/lactate PDF. Lactate stimulation increased mRNA expressions of αSMA, matrix metalloproteinase 2 (MMP2), and basic fibroblast growth factor (bFGF) and suppressed e-cadherin mRNA expression. Transforming growth factor (TGF)-β1 and TGF-β2 and collagen type 1 and 3 mRNA expressions were also enhanced by lactate stimulation.
Conclusions
These results suggest that lactate as a PDF buffer may act on PMCs to promote epithelial-mesenchymal transition (EMT) and production of TGF-β, bFGF, and collagen.
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26
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Yan D, Liu X, Xu H, Guo SW. Mesothelial Cells Participate in Endometriosis Fibrogenesis Through Platelet-Induced Mesothelial-Mesenchymal Transition. J Clin Endocrinol Metab 2020; 105:5894452. [PMID: 32813013 DOI: 10.1210/clinem/dgaa550] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
CONTEXT While fibrosis in endometriosis has recently loomed prominently, the sources of myofibroblasts, the principal effector cell in fibrotic diseases, remain largely obscure. Mesothelial cells (MCs) can be converted into myofibroblasts through mesothelial-mesenchymal transition (MMT) in many fibrotic diseases and adhesion. OBJECTIVE To evaluate whether MCs contribute to the progression and fibrogenesis in endometriosis through MMT. SETTING, DESIGN, PATIENTS, INTERVENTION, AND MAIN OUTCOME MEASURES Dual immunofluorescence staining and immunohistochemistry using antibodies against calretinin, Wilms' tumor-1 (WT-1), and α-smooth muscle actin (α-SMA) were performed on lesion samples from 30 patients each with ovarian endometrioma (OE) and deep endometriosis (DE), and 30 normal endometrial (NE) tissue samples. Human pleural and peritoneal MCs were co-cultured with activated platelets or control medium with and without neutralization of transforming growth factor β1 (TGF-β1) and/or platelet-derived growth factor receptor (PDGFR) and their morphology, proliferation, and expression levels of genes and proteins known to be involved in MMT were evaluated, along with their migratory and invasive propensity, contractility, and collagen production. RESULTS The number of calretinin/WT-1 and α-SMA dual-positive fibroblasts in OE/DE lesions was significantly higher than NE samples. The extent of lesional fibrosis correlated positively with the lesional α-SMA staining levels. Human MCs co-cultured with activated platelets acquire a morphology suggestive of MMT, concomitant with increased proliferation, loss of calretinin expression, and marked increase in expression of mesenchymal markers. These changes coincided with functional differentiation as reflected by increased migratory and invasive capacity, contractility, and collagen production. Neutralization of TGF-β1 and PDGFR signaling abolished platelet-induced MMT in MCs. CONCLUSIONS MCs contribute to lesional progression and fibrosis through platelet-induced MMT.
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Affiliation(s)
- Dingmin Yan
- Shanghai OB/GYN Hospital, Fudan University, Shanghai, China
| | - Xishi Liu
- Shanghai OB/GYN Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China
| | - Hong Xu
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Sun-Wei Guo
- Shanghai OB/GYN Hospital, Fudan University, Shanghai, China
- Shanghai Key Laboratory of Female Reproductive Endocrine-Related Diseases, Fudan University, Shanghai, China
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27
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Miyake T, Sakai N, Tamai A, Sato K, Kamikawa Y, Miyagawa T, Ogura H, Yamamura Y, Oshima M, Nakagawa S, Sagara A, Shinozaki Y, Toyama T, Kitajima S, Hara A, Iwata Y, Shimizu M, Furuichi K, Kaneko S, Wada T. Trehalose ameliorates peritoneal fibrosis by promoting Snail degradation and inhibiting mesothelial-to-mesenchymal transition in mesothelial cells. Sci Rep 2020; 10:14292. [PMID: 32868830 PMCID: PMC7459354 DOI: 10.1038/s41598-020-71230-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 08/12/2020] [Indexed: 12/13/2022] Open
Abstract
Peritoneal fibrosis (PF) is a severe complication of peritoneal dialysis, but there are few effective therapies for it. Recent studies have revealed a new biological function of trehalose as an autophagy inducer. Thus far, there are few reports regarding the therapeutic effects of trehalose on fibrotic diseases. Therefore, we examined whether trehalose has anti-fibrotic effects on PF. PF was induced by intraperitoneal injection of chlorhexidine gluconate (CG). CG challenges induced the increase of peritoneal thickness, ColIα1 mRNA expression and hydroxyproline content, all of which were significantly attenuated by trehalose. In addition, CG challenges induced a marked peritoneal accumulation of α-SMA+ myofibroblasts that was reduced by trehalose. The number of Wt1+ α-SMA+ cells in the peritoneum increased following CG challenges, suggesting that a part of α-SMA+ myofibroblasts were derived from peritoneal mesothelial cells (PMCs). The number of Wt1+ α-SMA+ cells was also suppressed by trehalose. Additionally, trehalose attenuated the increase of α-SMA and ColIα1 mRNA expression induced by TGF-β1 through Snail protein degradation, which was dependent on autophagy in PMCs. These results suggest that trehalose might be a novel therapeutic agent for PF through the induction of autophagy and the suppression of mesothelial-to-mesenchymal transition in PMCs.
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Affiliation(s)
- Taito Miyake
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Norihiko Sakai
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan. .,Division of Blood Purification, Kanazawa University Hospital, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.
| | - Akira Tamai
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Koichi Sato
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasutaka Kamikawa
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Taro Miyagawa
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Hisayuki Ogura
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yuta Yamamura
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Megumi Oshima
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Shiori Nakagawa
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Akihiro Sagara
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasuyuki Shinozaki
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Tadashi Toyama
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Shinji Kitajima
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Akinori Hara
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasunori Iwata
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Miho Shimizu
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Kengo Furuichi
- Division of Nephrology, Kanazawa Medical University School of Medicine, Uchinada, Ishikawa, 920-0293, Japan
| | - Shuichi Kaneko
- Department of System Biology, Institute of Medical, Pharmaceutical and Health Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan
| | - Takashi Wada
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan. .,Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-8641, Japan.
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28
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Hsu YT, Wu CH, Chao CY, Wei YS, Chang YC, Chen YT, Lin SL, Tsai SY, Lee YJ, Tsai PS. Hypochlorite-induced porcine model of peritoneal fibrosis through the activation of IL1β-CX3CL1-TGFβ1 signal axis. Sci Rep 2020; 10:11496. [PMID: 32661265 PMCID: PMC7359301 DOI: 10.1038/s41598-020-68495-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
Patients with kidney failure rely on life-saving peritoneal dialysis to facilitate waste exchange and maintain homeostasis of physical conditions. However, peritoneal dialysis often results in peritoneal fibrosis and organ adhesion that subsequently compromise the efficiency of peritoneal dialysis and normal functions of visceral organs. Despite rodent models provide clues on the pathogenesis of peritoneal fibrosis, no current large animal model which shares high degree of physiological and anatomical similarities to human is available, limiting their applications on the evaluation of pre-clinical therapeutic efficacy. Here we established for the first time, hypochlorite-induced porcine model of peritoneal fibrosis in 5-week-old piglets. We showed that administration 15–30 mM hypochlorite, a dose- and time-dependent severity of peritoneal fibrosis characterized by mesothelium fragmentation, αSMA+ myofibroblasts accumulation, organ surface thickening and type I collagen deposition were observed. We also demonstrated in vitro using human mesothelial cells that hypochlorite-induced fibrosis was likely due to necrosis, but not programmed apoptosis; besides, overexpression of IL1β, CX3CL1 and TGFβ on the peritoneal mesothelium in current model was detected, similar to observations from peritoneal dialysis-induced peritoneal fibrosis in human patients and earlier reported mouse model. Moreover, our novel antemortem evaluation using laparoscopy provided instant feedback on the progression of organ fibrosis/adhesion which allows immediate adjustments on treatment protocols and strategies in alive individuals that can not and never be performed in other animal models.
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Affiliation(s)
- Yu-Ting Hsu
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Ching-Ho Wu
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Chun-Yuan Chao
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Yu-Syuan Wei
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Yen-Chen Chang
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Yi-Ting Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan, ROC.,Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei, 10002, Taiwan, ROC
| | - Shuei-Liong Lin
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan, ROC.,Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei, 10002, Taiwan, ROC.,Graduate Institute of Physiology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan, ROC.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Su-Yi Tsai
- Department of Life Science, College of Life Science, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Ya-Jane Lee
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.,Graduate Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC
| | - Pei-Shiue Tsai
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC. .,Graduate Institute of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC. .,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, 10617, Taiwan, ROC.
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29
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Si M, Wang Q, Li Y, Lin H, Luo D, Zhao W, Dou X, Liu J, Zhang H, Huang Y, Lou T, Hu Z, Peng H. Inhibition of hyperglycolysis in mesothelial cells prevents peritoneal fibrosis. Sci Transl Med 2020; 11:11/495/eaav5341. [PMID: 31167927 DOI: 10.1126/scitranslmed.aav5341] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 05/13/2019] [Indexed: 12/11/2022]
Abstract
Progressive peritoneal fibrosis affects patients receiving peritoneal dialysis (PD) and has no reliable treatment. The mechanisms that initiate and sustain peritoneal fibrosis remain incompletely elucidated. To overcome these problems, we developed a strategy that prevents peritoneal fibrosis by suppressing PD-stimulated mesothelial-to-mesenchymal transition (MMT). We evaluated single-cell transcriptomes of mesothelial cells obtained from normal peritoneal biopsy and effluent from PD-treated patients. In cells undergoing MMT, we found cellular heterogeneity and intermediate transition states associated with up-regulation of enzymes involved in glycolysis. The expression of glycolytic enzymes was correlated with the development of MMT. Using gene expression profiling and metabolomics analyses, we confirmed that PD fluid induces metabolic reprogramming, characterized as hyperglycolysis, in mouse peritoneum. We found that transforming growth factor β1 (TGF-β1) can substitute for PD fluid to stimulate hyperglycolysis, suppressing mitochondrial respiration in mesothelial cells. Blockade of hyperglycolysis with 2-deoxyglucose (2-DG) inhibited TGF-β1-induced profibrotic cellular phenotype and peritoneal fibrosis in mice. We developed a triad of adeno-associated viruses that overexpressed microRNA-26a and microRNA-200a while inhibiting microRNA-21a to target hyperglycolysis and fibrotic signaling. Intraperitoneal injection of the viral triad inhibited the development of peritoneal fibrosis induced by PD fluid in mice. We conclude that hyperglycolysis is responsible for MMT and peritoneal fibrogenesis, and this aberrant metabolic state can be corrected by modulating microRNAs in the peritoneum. These results could provide a therapeutic strategy to combat peritoneal fibrosis.
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Affiliation(s)
- Meijun Si
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Qianqian Wang
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.,Nephrology Division, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - Yin Li
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Hongchun Lin
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Dan Luo
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Wenbo Zhao
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Xianrui Dou
- Nephrology Division, Shunde Hospital of Southern Medical University, Foshan 528300, China
| | - Jun Liu
- Institute of Human Virology and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Hui Zhang
- Institute of Human Virology and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Yong Huang
- Division of Gastrointestinal Surgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Tanqi Lou
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Zhaoyong Hu
- Nephrology Division, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Hui Peng
- Nephrology Division, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China.
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30
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Fibroblast Heterogeneity in and Its Implications for Plastic and Reconstructive Surgery: A Basic Science Review. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 8:e2927. [PMID: 32766071 PMCID: PMC7339369 DOI: 10.1097/gox.0000000000002927] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/30/2020] [Indexed: 02/06/2023]
Abstract
Fibroblasts’ integral role in tissue development, maintenance, and disease represents a fast-growing field of basic science research. Although fibroblasts were long thought to be a homogeneous cell population, recent research has illuminated the unforeseen complexity of these cells, giving rise to the rapidly expanding research field of “fibroblast heterogeneity.” Fibroblasts play a critical role in states of tissue fibrosis such as skin scarring, which affects hundreds of millions of patients annually and causes severe aesthetic, developmental, and functional morbidity. Beyond scarring, major organ fibrosis is an enormous public health concern responsible for nearly half of all deaths in the United States. Because fibrosis is a conserved response to tissue damage in all organs, the study of fibroblasts throughout the body may help us to understand their role in the conditions most relevant to plastic and reconstructive surgery—for instance, skin scarring (eg, from burns, traumatic lacerations, or surgical incisions), “pathological” scarring (hypertrophic scars, keloids), and capsular contracture. Here, we present a basic science review of fibroblast heterogeneity in wound healing, cancer, organ fibrosis, and human dermal architecture. The field of fibroblast heterogeneity is young, and many of the insights discussed have yet to be translated clinically. However, plastic surgeons stand in a unique position to bridge these discoveries into clinical realities. We hope this information can spur readers to consider both what questions in plastic surgery can be studied from the lens of fibroblast heterogeneity, and how these preclinical insights can be translated to improving care of our patients.
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31
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Wong‐Arteta J, Rey M, Aragón L, Gil‐Rodríguez E, Bujanda L. The utility of flow cytometry in the diagnostic work up of malignant effusions due to nonhematopoietic neoplasms. CYTOMETRY PART B-CLINICAL CYTOMETRY 2020; 98:504-515. [PMID: 32506689 DOI: 10.1002/cyto.b.21886] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Jhonatan Wong‐Arteta
- Biochemistry Donostia University Hospital San Sebastián País Vasco Spain
- School of Medicine University of the Basque Country (UPV‐EHU) San Sebastián País Vasco Spain
- Hematology Asuncion Clinic Tolosa País Vasco Spain
| | - Mercedes Rey
- Immunology Donostia University Hospital San Sebastián País Vasco Spain
| | - Larraitz Aragón
- Immunology Donostia University Hospital San Sebastián País Vasco Spain
| | - Eva Gil‐Rodríguez
- Biochemistry Donostia University Hospital San Sebastián País Vasco Spain
| | - Luis Bujanda
- School of Medicine University of the Basque Country (UPV‐EHU) San Sebastián País Vasco Spain
- Gastroenterology Donostia University Hospital San Sebastián País Vasco Spain
- Department of Liver and Gastrointestinal Diseases Biodonostia Health Research Institute San Sebastián País Vasco Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd) Carlos III National Institute of Health Madrid Spain
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Balog S, Li Y, Ogawa T, Miki T, Saito T, French SW, Asahina K. Development of Capsular Fibrosis Beneath the Liver Surface in Humans and Mice. Hepatology 2020; 71:291-305. [PMID: 31206736 PMCID: PMC6918014 DOI: 10.1002/hep.30809] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022]
Abstract
Glisson's capsule is the connective tissue present in the portal triad as well as beneath the liver surface. Little is known about how Glisson's capsule changes its structure in capsular fibrosis (CF), which is characterized by fibrogenesis beneath the liver surface. In this study, we found that the human liver surface exhibits multilayered capsular fibroblasts and that the bile duct is present beneath the mesothelium, whereas capsular fibroblasts are scarce and no bile ducts are present beneath the mouse liver surface. Patients with cirrhosis caused by alcohol abuse or hepatitis C virus infection show development of massive CF. To examine the effect of alcohol on CF in mice, we first injected chlorhexidine gluconate (CG) intraperitoneally and then fed alcohol for 1 month. The CG injection induces CF consisting of myofibroblasts beneath the mesothelium. One month after CG injection, the fibrotic area returns to the normal structure. In contrast, additional alcohol feeding sustains the presence of myofibroblasts in CF. Cell lineage tracing revealed that mesothelial cells give rise to myofibroblasts in CF, but these myofibroblasts disappear 1 month after recovery with or without alcohol feeding. Capsular fibroblasts isolated from the mouse liver spontaneously differentiated into myofibroblasts and their differentiation was induced by transforming growth factor beta 1 (TGF-β1) or acetaldehyde in culture. In alcohol-fed mice, infiltrating CD11b+ Ly-6CLow/- monocytes had reduced mRNA expression of matrix metalloproteinase 13 and matrix metalloproteinase 9 and increased expression of tissue inhibitor of matrix metalloproteinase 1, Tgfb1, and interleukin-10 during resolution of CF. Conclusion: The present study revealed that the structure of Glisson's capsule is different between human and mouse livers and that alcohol impairs the resolution of CF by changing the phenotype of Ly-6CLow/- monocytes.
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Affiliation(s)
- Steven Balog
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, CA, USA
| | - Yuchang Li
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, CA, USA
| | - Tomohiro Ogawa
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, CA, USA.,Center for the Advancement of Higher Education, Faculty of Engineering, Kindai University, Hiroshima, Japan
| | - Toshio Miki
- Department of Surgery, Keck School of Medicine, University of Southern California, CA, USA
| | - Takeshi Saito
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, CA, USA.,Department of Medicine, Keck School of Medicine, University of Southern California, CA, USA
| | | | - Kinji Asahina
- Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, CA, USA.,Contact Information: Kinji Asahina, Ph.D., FAASLD, Southern California Research Center for ALPD and Cirrhosis, Department of Pathology, Keck School of Medicine, University of Southern California, 1333 San Pablo St., MMR402, Los Angeles, CA 90033-9141, Tel: 323-442-2213, Fax: 323-442-3126,
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Dhar D, Baglieri J, Kisseleva T, Brenner DA. Mechanisms of liver fibrosis and its role in liver cancer. Exp Biol Med (Maywood) 2020; 245:96-108. [PMID: 31924111 PMCID: PMC7016420 DOI: 10.1177/1535370219898141] [Citation(s) in RCA: 191] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Hepatic fibrogenesis is a pathophysiological outcome of chronic liver injury hallmarked by excessive accumulation of extracellular matrix proteins. Fibrosis is a dynamic process that involves cross-talk between parenchymal cells (hepatocytes), hepatic stellate cells, sinusoidal endothelial cells and both resident and infiltrating immune cells. In this review, we focus on key cell-types that contribute to liver fibrosis, cytokines, and chemokines influencing this process and what it takes for fibrosis to regress. We discuss how mitochondria and metabolic changes in hepatic stellate cells modulate the fibrogenic process. We also briefly review how the presence of fibrosis affects development of hepatocellular carcinoma.
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Affiliation(s)
- Debanjan Dhar
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Jacopo Baglieri
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Tatiana Kisseleva
- Department of Surgery, University of California San Diego, La Jolla, CA 92093, USA
| | - David A Brenner
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
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34
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Xie T, Wang Y, Deng N, Huang G, Taghavifar F, Geng Y, Liu N, Kulur V, Yao C, Chen P, Liu Z, Stripp B, Tang J, Liang J, Noble PW, Jiang D. Single-Cell Deconvolution of Fibroblast Heterogeneity in Mouse Pulmonary Fibrosis. Cell Rep 2019; 22:3625-3640. [PMID: 29590628 PMCID: PMC5908225 DOI: 10.1016/j.celrep.2018.03.010] [Citation(s) in RCA: 323] [Impact Index Per Article: 64.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 02/23/2018] [Accepted: 03/01/2018] [Indexed: 01/15/2023] Open
Abstract
Fibroblast heterogeneity has long been recognized in mouse and human lungs, homeostasis, and disease states. However, there is no common consensus on fibroblast subtypes, lineages, biological properties, signaling, and plasticity, which severely hampers our understanding of the mechanisms of fibrosis. To comprehensively classify fibroblast populations in the lung using an unbiased approach, single-cell RNA sequencing was performed with mesenchymal preparations from either uninjured or bleomycin-treated mouse lungs. Single-cell transcriptome analyses classified and defined six mesenchymal cell types in normal lung and seven in fibrotic lung. Furthermore, delineation of their differentiation trajectory was achieved by a machine learning method. This collection of single-cell transcriptomes and the distinct classification of fibroblast subsets provide a new resource for understanding the fibroblast landscape and the roles of fibroblasts in fibrotic diseases.
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Affiliation(s)
- Ting Xie
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
| | - Yizhou Wang
- Genomics Core, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Nan Deng
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Guanling Huang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Forough Taghavifar
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Yan Geng
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Ningshan Liu
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Vrishika Kulur
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Changfu Yao
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Peter Chen
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Zhengqiu Liu
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Barry Stripp
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jie Tang
- Genomics Core, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Jiurong Liang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Paul W Noble
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
| | - Dianhua Jiang
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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Moscoso CG, Steer CJ. "Let my liver rather heat with wine" - a review of hepatic fibrosis pathophysiology and emerging therapeutics. Hepat Med 2019; 11:109-129. [PMID: 31565001 PMCID: PMC6731525 DOI: 10.2147/hmer.s213397] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/17/2019] [Indexed: 12/12/2022] Open
Abstract
Cirrhosis is characterized by extensive hepatic fibrosis, and it is the 14th leading cause of death worldwide. Numerous contributing conditions have been implicated in its development, including infectious etiologies, medication overdose or adverse effects, ingestible toxins, autoimmunity, hemochromatosis, Wilson’s disease and primary biliary cholangitis to list a few. It is associated with portal hypertension and its stigmata (varices, ascites, hepatic encephalopathy, combined coagulopathy and thrombophilia), and it is a major risk factor for hepatocellular carcinoma. Currently, orthotopic liver transplantation has been the only curative modality to treat cirrhosis, and the scarcity of donors results in many people waiting years for a transplant. Identification of novel targets for pharmacologic therapy through elucidation of key mechanistic components to induce fibrosis reversal is the subject of intense research. Development of robust models of hepatic fibrosis to faithfully characterize the interplay between activated hepatic stellate cells (the principal fibrogenic contributor to fibrosis initiation and perpetuation), hepatocytes and extracellular matrix components has the potential to identify critical components and mechanisms that can be exploited for targeted treatment. In this review, we will highlight key cellular pathways involved in the pathophysiology of fibrosis from extracellular ligands, effectors and receptors, to nuclear receptors, epigenetic mechanisms, energy homeostasis and cytokines. Further, molecular pathways of hepatic stellate cell deactivation are discussed, including apoptosis, senescence and reversal or transdifferentiation to an inactivated state resembling quiescence. Lastly, clinical evidence of fibrosis reversal induced by biologics and small molecules is summarized, current compounds under clinical trials are described and efforts for treatment of hepatic fibrosis with mesenchymal stem cells are highlighted. An enhanced understanding of the rich tapestry of cellular processes identified in the initiation, perpetuation and resolution of hepatic fibrosis, driven principally through phenotypic switching of hepatic stellate cells, should lead to a breakthrough in potential therapeutic modalities.
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Affiliation(s)
- Carlos G Moscoso
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition
| | - Clifford J Steer
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition.,Department of Genetics, Cell Biology and Development, University of Minnesota Medical School, Minneapolis, MN 55455, USA
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36
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The Role of Fibrosis and Liver-Associated Fibroblasts in the Pathogenesis of Hepatocellular Carcinoma. Int J Mol Sci 2019. [PMID: 30959975 DOI: 10.3390/ijms20071723.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive types of cancer and lacks effective therapeutic approaches. Most HCC develops in the setting of chronic liver injury, hepatic inflammation, and fibrosis. Hepatic stellate cells (HSCs) and cancer-associated fibroblasts (CAFs) are key players in liver fibrogenesis and hepatocarcinogenesis, respectively. CAFs, which probably derive from HSCs, activate into extracellular matrix (ECM)-producing myofibroblasts and crosstalk with cancer cells to affect tumor growth and invasion. In this review, we describe the different components which form the HCC premalignant microenvironment (PME) and the tumor microenvironment (TME), focusing on the liver fibrosis process and the biology of CAFs. We will describe the CAF-dependent mechanisms which have been suggested to promote hepatocarcinogenesis, such as the alteration of ECM, CAF-dependent production of cytokines and angiogenic factors, CAF-dependent reduction of immuno-surveillance, and CAF-dependent promotion of epithelial-mesenchymal transition (EMT). New knowledge of the fibrosis process and the role of CAFs in HCC may pave the way for new therapeutic strategies for liver cancer.
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37
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Baglieri J, Brenner DA, Kisseleva T. The Role of Fibrosis and Liver-Associated Fibroblasts in the Pathogenesis of Hepatocellular Carcinoma. Int J Mol Sci 2019; 20:ijms20071723. [PMID: 30959975 PMCID: PMC6479943 DOI: 10.3390/ijms20071723] [Citation(s) in RCA: 194] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/29/2019] [Accepted: 04/05/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive types of cancer and lacks effective therapeutic approaches. Most HCC develops in the setting of chronic liver injury, hepatic inflammation, and fibrosis. Hepatic stellate cells (HSCs) and cancer-associated fibroblasts (CAFs) are key players in liver fibrogenesis and hepatocarcinogenesis, respectively. CAFs, which probably derive from HSCs, activate into extracellular matrix (ECM)-producing myofibroblasts and crosstalk with cancer cells to affect tumor growth and invasion. In this review, we describe the different components which form the HCC premalignant microenvironment (PME) and the tumor microenvironment (TME), focusing on the liver fibrosis process and the biology of CAFs. We will describe the CAF-dependent mechanisms which have been suggested to promote hepatocarcinogenesis, such as the alteration of ECM, CAF-dependent production of cytokines and angiogenic factors, CAF-dependent reduction of immuno-surveillance, and CAF-dependent promotion of epithelial-mesenchymal transition (EMT). New knowledge of the fibrosis process and the role of CAFs in HCC may pave the way for new therapeutic strategies for liver cancer.
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Affiliation(s)
- Jacopo Baglieri
- Department of Medicine, UC San Diego, La Jolla, CA 92093, USA.
| | - David A Brenner
- Department of Medicine, UC San Diego, La Jolla, CA 92093, USA.
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38
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Fibroinflammatory Liver Injuries as Preneoplastic Condition in Cholangiopathies. Int J Mol Sci 2018; 19:ijms19123875. [PMID: 30518128 PMCID: PMC6321547 DOI: 10.3390/ijms19123875] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/29/2018] [Accepted: 12/01/2018] [Indexed: 02/08/2023] Open
Abstract
The cholangipathies are a class of liver diseases that specifically affects the biliary tree. These pathologies may have different etiologies (genetic, autoimmune, viral, or toxic) but all of them are characterized by a stark inflammatory infiltrate, increasing overtime, accompanied by an excess of periportal fibrosis. The cellular types that mount the regenerative/reparative hepatic response to the damage belong to different lineages, including cholagiocytes, mesenchymal and inflammatory cells, which dynamically interact with each other, exchanging different signals acting in autocrine and paracrine fashion. Those messengers may be proinflammatory cytokines and profibrotic chemokines (IL-1, and 6; CXCL1, 10 and 12, or MCP-1), morphogens (Notch, Hedgehog, and WNT/β-catenin signal pathways) and finally growth factors (VEGF, PDGF, and TGFβ, among others). In this review we will focus on the main molecular mechanisms mediating the establishment of a fibroinflammatory liver response that, if perpetuated, can lead not only to organ dysfunction but also to neoplastic transformation. Primary Sclerosing Cholangitis and Congenital Hepatic Fibrosis/Caroli’s disease, two chronic cholangiopathies, known to be prodrome of cholangiocarcinoma, for which several murine models are also available, were also used to further dissect the mechanisms of fibroinflammation leading to tumor development.
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39
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Tsai JM, Sinha R, Seita J, Fernhoff N, Christ S, Koopmans T, Krampitz GW, McKenna KM, Xing L, Sandholzer M, Sales JH, Shoham M, McCracken M, Joubert LM, Gordon SR, Poux N, Wernig G, Norton JA, Weissman IL, Rinkevich Y. Surgical adhesions in mice are derived from mesothelial cells and can be targeted by antibodies against mesothelial markers. Sci Transl Med 2018; 10:eaan6735. [PMID: 30487249 DOI: 10.1126/scitranslmed.aan6735] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/26/2017] [Accepted: 04/30/2018] [Indexed: 11/20/2023]
Abstract
Peritoneal adhesions are fibrous tissues that tether organs to one another or to the peritoneal wall and are a major cause of postsurgical and infectious morbidity. The primary molecular chain of events leading to the initiation of adhesions has been elusive, chiefly due to the lack of an identifiable cell of origin. Using clonal analysis and lineage tracing, we have identified injured surface mesothelium expressing podoplanin (PDPN) and mesothelin (MSLN) as a primary instigator of peritoneal adhesions after surgery in mice. We demonstrate that an anti-MSLN antibody diminished adhesion formation in a mouse model where adhesions were induced by surgical ligation to form ischemic buttons and subsequent surgical abrasion of the peritoneum. RNA sequencing and bioinformatics analyses of mouse mesothelial cells from injured mesothelium revealed aspects of the pathological mechanism of adhesion development and yielded several potential regulators of this process. Specifically, we show that PDPN+MSLN+ mesothelium responded to hypoxia by early up-regulation of hypoxia-inducible factor 1 alpha (HIF1α) that preceded adhesion development. Inhibition of HIF1α with small molecules ameliorated the injury program in damaged mesothelium and was sufficient to diminish adhesion severity in a mouse model. Analyses of human adhesion tissue suggested that similar surface markers and signaling pathways may contribute to surgical adhesions in human patients.
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Affiliation(s)
- Jonathan M Tsai
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Rahul Sinha
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jun Seita
- AI based Healthcare and Medical Data Analysis Standardization Unit, Medical Sciences Innovation Hub Program, RIKEN, Tokyo 103-0027, Japan
| | - Nathaniel Fernhoff
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Simon Christ
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease,Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Tim Koopmans
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease,Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Geoffrey W Krampitz
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of General Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kelly M McKenna
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Liujing Xing
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Michael Sandholzer
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease,Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Jennifer Horatia Sales
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease,Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Maia Shoham
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Melissa McCracken
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Lydia-Marie Joubert
- Cell Sciences Imaging Facility, Beckman Center, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sydney R Gordon
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Nicolas Poux
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Gerlinde Wernig
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jeffrey A Norton
- Department of General Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Ludwig Center for Cancer Stem Cell Biology and Medicine at Stanford University, Stanford, CA 94305, USA
| | - Yuval Rinkevich
- Comprehensive Pneumology Center, Institute of Lung Biology and Disease,Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany.
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40
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Mesothelial to mesenchyme transition as a major developmental and pathological player in trunk organs and their cavities. Commun Biol 2018; 1:170. [PMID: 30345394 PMCID: PMC6191446 DOI: 10.1038/s42003-018-0180-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/28/2018] [Indexed: 12/18/2022] Open
Abstract
The internal organs embedded in the cavities are lined by an epithelial monolayer termed the mesothelium. The mesothelium is increasingly implicated in driving various internal organ pathologies, as many of the normal embryonic developmental pathways acting in mesothelial cells, such as those regulating epithelial-to-mesenchymal transition, also drive disease progression in adult life. Here, we summarize observations from different animal models and organ systems that collectively point toward a central role of epithelial-to-mesenchymal transition in driving tissue fibrosis, acute scarring, and cancer metastasis. Thus, drugs targeting pathways of mesothelium’s transition may have broad therapeutic benefits in patients suffering from these diseases. Tim Koopmans and Yuval Rinkevich review recent findings linking the mesothelium’s embryonic programs that drive epithelial-to-mesenchyme transition with adult pathologies, such as fibrosis, acute scarring, and cancer metastasis. They highlight new avenues for drug development that would target pathways of the mesothelium’s mesenchymal transition.
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Namvar S, Woolf AS, Zeef LA, Wilm T, Wilm B, Herrick SE. Functional molecules in mesothelial-to-mesenchymal transition revealed by transcriptome analyses. J Pathol 2018; 245:491-501. [PMID: 29774544 PMCID: PMC6055603 DOI: 10.1002/path.5101] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 03/01/2018] [Accepted: 05/12/2018] [Indexed: 12/13/2022]
Abstract
Peritoneal fibrosis is a common complication of abdominal and pelvic surgery, and can also be triggered by peritoneal dialysis, resulting in treatment failure. In these settings, fibrosis is driven by activated myofibroblasts that are considered to be partly derived by mesothelial‐to‐mesenchymal transition (MMT). We hypothesized that, if the molecular signature of MMT could be better defined, these insights could be exploited to block this pathological cellular transition. Rat peritoneal mesothelial cells were purified by the use of an antibody against HBME1, a protein present on mesothelial cell microvilli, and streptavidin nanobead technology. After exposure of sorted cells to a well‐known mediator of MMT, transforming growth factor (TGF)‐β1, RNA sequencing was undertaken to define the transcriptomes of mesothelial cells before and during early‐phase MMT. MMT was associated with dysregulation of transcripts encoding molecules involved in insulin‐like growth factor (IGF) and bone morphogenetic protein (BMP) signalling. The application of either recombinant BMP4 or IGF‐binding protein 4 (IGFBP4) ameliorated TGF‐β1‐induced MMT in culture, as judged from the retention of epithelial morphological and molecular phenotypes, and reduced migration. Furthermore, peritoneal tissue from peritoneal dialysis patients showed less prominent immunostaining than control tissue for IGFBP4 and BMP4 on the peritoneal surface. In a mouse model of TGF‐β1‐induced peritoneal thickening, BMP4 immunostaining on the peritoneal surface was attenuated as compared with healthy controls. Finally, genetic lineage tracing of mesothelial cells was used in mice with peritoneal injury. In this model, administration of BMP4 ameliorated the injury‐induced shape change and migration of mesothelial cells. Our findings demonstrate a distinctive MMT signature, and highlight the therapeutic potential for BMP4, and possibly IGFBP4, to reduce MMT. © 2018 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Sara Namvar
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,Manchester Academic Health Science Centre, Manchester, UK
| | - Adrian S Woolf
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,Manchester Academic Health Science Centre, Manchester, UK.,Royal Manchester Children's Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Leo Ah Zeef
- The Bioinformatics Core Facility, The University of Manchester, Manchester, UK
| | - Thomas Wilm
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Bettina Wilm
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Sarah E Herrick
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.,Manchester Academic Health Science Centre, Manchester, UK
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42
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Macarak EJ, Lotto CE, Koganti D, Jin X, Wermuth PJ, Olsson AK, Montgomery M, Rosenbloom J. Trametinib prevents mesothelial-mesenchymal transition and ameliorates abdominal adhesion formation. J Surg Res 2018; 227:198-210. [DOI: 10.1016/j.jss.2018.02.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/11/2018] [Accepted: 02/13/2018] [Indexed: 12/13/2022]
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43
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Mik P, Tonar Z, Malečková A, Eberlová L, Liška V, Pálek R, Rosendorf J, Jiřík M, Mírka H, Králíčková M, Witter K. Distribution of Connective Tissue in the Male and Female Porcine Liver: Histological Mapping and Recommendations for Sampling. J Comp Pathol 2018; 162:1-13. [PMID: 30060837 DOI: 10.1016/j.jcpa.2018.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/17/2018] [Accepted: 05/25/2018] [Indexed: 02/07/2023]
Abstract
The pig is a large animal model that is often used in experimental medicine. The aim of this study was to assess, in normal pig livers, sexual dimorphism in the normal fraction of hepatic interlobular and intralobular connective tissue (CT) in six hepatic lobes and in three macroscopical regions of interest (ROIs) with different positions relative to the liver vasculature. Using stereological point grids, the fractions of CT were quantified in histological sections stained with aniline blue and nuclear fast red. Samples (415 tissue blocks) were collected from healthy piglets, representing paracaval, paraportal and peripheral ROIs. There was considerable variability in the CT fraction at all sampling levels. In males the mean fraction of interlobular CT was 4.7 ± 2.4% (mean ± SD) and ranged from 0% to 11.4%. In females the mean fraction of the interlobular CT was 3.6 ± 2.2% and ranged from 0% to 12.3%. The mean fraction of intralobular (perisinusoidal summed with pericentral) CT was <0.2% in both sexes. The interlobular CT represented >99.8% of the total hepatic CT and the fractions were highly correlated (Spearman r = 0.998, P <0.05). The smallest CT fraction was observed in the left medial lobe and in the paracaval ROI and the largest CT fraction was detected in the quadrate lobe and in the peripheral ROI. For planning experiments involving the histological quantification of liver fibrosis and requiring comparison between the liver lobes, these data facilitate the power analysis for sample size needed to detect the expected relative increase or decrease in the fraction of CT.
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Affiliation(s)
- P Mik
- Department of Anatomy, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, Pilsen, Czech Republic
| | - Z Tonar
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, Pilsen, Czech Republic.
| | - A Malečková
- European Centre of Excellence NTIS, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 22, Pilsen, Czech Republic
| | - L Eberlová
- Department of Anatomy, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, Pilsen, Czech Republic
| | - V Liška
- Department of Surgery and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, Pilsen, Czech Republic
| | - R Pálek
- Department of Surgery and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, Pilsen, Czech Republic
| | - J Rosendorf
- Department of Surgery and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, Pilsen, Czech Republic
| | - M Jiřík
- European Centre of Excellence NTIS, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 22, Pilsen, Czech Republic
| | - H Mírka
- Department of Imaging Methods and Biomedical Centre, Faculty of Medicine in Pilsen, Charles University, University Hospital in Pilsen, Czech Republic
| | - M Králíčková
- Department of Histology and Embryology and Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, Pilsen, Czech Republic
| | - K Witter
- Institute of Anatomy, Histology and Embryology, Department for Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, Vienna, Austria
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Padwal M, Cheng G, Liu L, Boivin F, Gangji AS, Brimble KS, Bridgewater D, Margetts PJ. WNT signaling is required for peritoneal membrane angiogenesis. Am J Physiol Renal Physiol 2018; 314:F1036-F1045. [DOI: 10.1152/ajprenal.00497.2017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The wingless-type mouse mammary tumor virus integration site family (WNT) signaling pathway is involved in wound healing and fibrosis. We evaluated the WNT signaling pathway in peritoneal membrane injury. We assessed WNT1 protein expression in the peritoneal effluents of 54 stable peritoneal dialysis (PD) patients and WNT-related gene expression in ex vivo mesothelial cell cultures from 21 PD patients. In a transforming growth factor-β (TGF-β)-mediated animal model of peritoneal fibrosis, we evaluated regulation of the WNT pathway and the effect of WNT inhibition on peritoneal fibrosis and angiogenesis. WNT1 and WNT2 gene expression were positively correlated with peritoneal membrane solute transport in PD patients. In the mouse peritoneum, TGF-β-induced peritoneal fibrosis was associated with increased expression of WNT2 and WNT4. Peritoneal β-catenin protein was significantly upregulated after infection with adenovirus expressing TGF-β (AdTGF-β) along with elements of the WNT signaling pathway. Treatment with a β-catenin inhibitor (ICG-001) in mice with AdTGF-β-induced peritoneal fibrosis resulted in attenuation of peritoneal angiogenesis and reduced vascular endothelial growth factor. Similar results were also observed with the WNT antagonist Dickkopf-related protein (DKK)-1. In addition to this, DKK-1 blocked epithelial-mesenchymal transition and increased levels of the cell adhesion protein E-cadherin. We provide evidence that WNT signaling is active in the setting of experimental peritoneal fibrosis and WNT1 correlates with patient peritoneal membrane solute transport in PD patients. Intervention in this pathway is a possible therapy for peritoneal membrane injury.
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Affiliation(s)
- Manreet Padwal
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Genyang Cheng
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Limin Liu
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Felix Boivin
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Azim S. Gangji
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | | | - Peter J. Margetts
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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Rossi L, Battistelli C, de Turris V, Noce V, Zwergel C, Valente S, Moioli A, Manzione A, Palladino M, Bordoni V, Domenici A, Menè P, Mai A, Tripodi M, Strippoli R. HDAC1 inhibition by MS-275 in mesothelial cells limits cellular invasion and promotes MMT reversal. Sci Rep 2018; 8:8492. [PMID: 29855565 PMCID: PMC5981641 DOI: 10.1038/s41598-018-26319-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 05/10/2018] [Indexed: 12/20/2022] Open
Abstract
Peritoneal fibrosis is a pathological alteration of the peritoneal membrane occurring in a variety of conditions including peritoneal dialysis (PD), post-surgery adhesions and peritoneal metastases. The acquisition of invasive and pro-fibrotic abilities by mesothelial cells (MCs) through induction of MMT, a cell-specific form of EMT, plays a main role in this process. Aim of this study was to evaluate possible effects of histone deacetylase (HDAC) inhibitors, key components of the epigenetic machinery, in counteracting MMT observed in MCs isolated from effluent of PD patients. HDAC inhibitors with different class/isoform selectivity have been used for pharmacological inhibition. While the effect of other inhibitors was limited to a partial E-cadherin re-expression, MS-275, a HDAC1-3 inhibitor, promoted: (i) downregulation of mesenchymal markers (MMP2, Col1A1, PAI-1, TGFβ1, TGFβRI) (ii) upregulation of epithelial markers (E-cadherin, Occludin), (iii) reacquisition of an epithelial-like morphology and (iv) marked reduction of cellular invasiveness. Results were confirmed by HDAC1 genetic silencing. Mechanistically, MS-275 causes: (i) increase of nuclear histone H3 acetylation (ii) rescue of the acetylation profile on E-cadherin promoter, (iii) Snail functional impairment. Overall, our study, pinpointing a role for HDAC1, revealed a new player in the regulation of peritoneal fibrosis, providing the rationale for future therapeutic opportunities.
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Affiliation(s)
- Lucia Rossi
- Department of Cellular Biotechnologies and Hematology, Section of Molecular Genetics, Sapienza University of Rome, Rome, Italy
| | - Cecilia Battistelli
- Department of Cellular Biotechnologies and Hematology, Section of Molecular Genetics, Sapienza University of Rome, Rome, Italy
| | - Valeria de Turris
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Rome, Italy
| | - Valeria Noce
- Department of Cellular Biotechnologies and Hematology, Section of Molecular Genetics, Sapienza University of Rome, Rome, Italy
| | - Clemens Zwergel
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, Rome, Italy
| | - Sergio Valente
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, Rome, Italy
| | - Alessandra Moioli
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Nephrology Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Andrea Manzione
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Nephrology Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Marco Palladino
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Nephrology Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Veronica Bordoni
- Gene Expression Laboratory, National Institute for Infectious Diseases "Lazzaro Spallanzani" I.R.C.C.S., Rome, Italy
| | - Alessandro Domenici
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Nephrology Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Paolo Menè
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Nephrology Unit, Sant'Andrea University Hospital, Rome, Italy
| | - Antonello Mai
- Department of Chemistry and Technologies of Drugs, Sapienza University of Rome, Rome, Italy
| | - Marco Tripodi
- Department of Cellular Biotechnologies and Hematology, Section of Molecular Genetics, Sapienza University of Rome, Rome, Italy. .,Gene Expression Laboratory, National Institute for Infectious Diseases "Lazzaro Spallanzani" I.R.C.C.S., Rome, Italy.
| | - Raffaele Strippoli
- Department of Cellular Biotechnologies and Hematology, Section of Molecular Genetics, Sapienza University of Rome, Rome, Italy. .,Gene Expression Laboratory, National Institute for Infectious Diseases "Lazzaro Spallanzani" I.R.C.C.S., Rome, Italy.
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46
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Kienzle A, Servais AB, Ysasi AB, Gibney BC, Valenzuela CD, Wagner WL, Ackermann M, Mentzer SJ. Free-Floating Mesothelial Cells in Pleural Fluid After Lung Surgery. Front Med (Lausanne) 2018; 5:89. [PMID: 29675416 PMCID: PMC5895720 DOI: 10.3389/fmed.2018.00089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 03/22/2018] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVES The mesothelium, the surface layer of the heart, lung, bowel, liver, and tunica vaginalis, is a complex tissue implicated in organ-specific diseases and regenerative biology; however, the mechanism of mesothelial repair after surgical injury is unknown. Previous observations indicated seeding of denuded mesothelium by free-floating mesothelial cells may contribute to mesothelial healing. In this study, we investigated the prevalence of mesothelial cells in pleural fluid during the 7 days following pulmonary surgery. STUDY DESIGN Flow cytometry was employed to study pleural fluid of 45 patients after lung resection or transplantation. We used histologically validated mesothelial markers (CD71 and WT1) to estimate the prevalence of mesothelial cells. RESULTS The viability of pleural fluid cells approached 100%. Leukocytes and mesothelial cells were identified in the pleural fluid within the first week after surgery. The leukocyte concentration was relatively stable at all time points. In contrast, mesothelial cells, identified by CD71 and WT1 peaked on POD3. The broad expression of CD71 molecule in postoperative pleural fluid suggests that many of the free-floating non-leukocyte cells were activated or proliferative mesothelial cells. CONCLUSION We demonstrated that pleural fluid post lung surgery is a source of mesothelial cells; most of these cells appear to be viable and, as shown by CD71 staining, activated mesothelial cells. The observed peak of mesothelial cells on POD3 is consistent with a potential reparative role of free-floating mesothelial cells after pulmonary surgery.
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Affiliation(s)
- Arne Kienzle
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Andrew B. Servais
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Alexandra B. Ysasi
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Barry C. Gibney
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Cristian D. Valenzuela
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Willi L. Wagner
- Department of Diagnostic and Interventional Radiology, Translational Lung Research Center Heidelberg (TLRC), Member of German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany
| | - Maximilian Ackermann
- Institute of Functional and Clinical Anatomy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Steven J. Mentzer
- Laboratory of Adaptive and Regenerative Biology, Brigham & Women’s Hospital, Harvard Medical School, Boston, MA, United States
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47
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Xu L, Liu N, Gu H, Wang H, Shi Y, Ma X, Ma S, Ni J, Tao M, Qiu A, Zhuang S. Histone deacetylase 6 inhibition counteracts the epithelial-mesenchymal transition of peritoneal mesothelial cells and prevents peritoneal fibrosis. Oncotarget 2017; 8:88730-88750. [PMID: 29179471 PMCID: PMC5687641 DOI: 10.18632/oncotarget.20982] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/27/2017] [Indexed: 11/25/2022] Open
Abstract
The role of histone deacetylase 6 (HDAC6) in peritoneal fibrosis remains unknown. In this study, we examined the effect of HDAC6 inhibition on the epithelial–mesenchymal transition (EMT) of peritoneal mesothelial cells and development of peritoneal fibrosis. Treatment with tubastatin A, a highly selective HDAC6 inhibitor, or silencing of HDAC6 with siRNA inhibited transforming growth factor β1-induced EMT, as evidenced by decreased expression of α-smooth muscle actin, collagen I and preserved expression of E-cadherin in cultured human peritoneal mesothelial cells. In a mouse model of peritoneal fibrosis induced by high glucose dialysate, administration of TA prevented thickening of the submesothelial region and decreased expression of collagen I and α-SMA. Mechanistically, tubastatin A treatment inhibited expression of TGF-β1 and phosphorylation of Smad-3, epidermal growth factor receptor, STAT3, and NF-κBp65. HDAC6 inhibition also suppressed production of multiple inflammatory cytokines/chemokines and reduced the infiltration of macrophages to the injured peritoneum. Moreover, tubastatin A was effective in inhibiting peritoneal increase of CD31(+) blood vessels and expression of vascular endothelial growth factor in the injured peritoneum. Collectively, these results suggest that HDAC6 inhibition can attenuate peritoneal fibrosis by inhibiting multiple pro-fibrotic signaling pathways, EMT, inflammation and blood vessel formation.
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Affiliation(s)
- Liuqing Xu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hongwei Gu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hongrui Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaoyan Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuchen Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Ni
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Sciences and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Brown University School of Medicine, Providence, RI, USA
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48
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Sakai N, Nakamura M, Lipson KE, Miyake T, Kamikawa Y, Sagara A, Shinozaki Y, Kitajima S, Toyama T, Hara A, Iwata Y, Shimizu M, Furuichi K, Kaneko S, Tager AM, Wada T. Inhibition of CTGF ameliorates peritoneal fibrosis through suppression of fibroblast and myofibroblast accumulation and angiogenesis. Sci Rep 2017; 7:5392. [PMID: 28710437 PMCID: PMC5511333 DOI: 10.1038/s41598-017-05624-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/31/2017] [Indexed: 01/06/2023] Open
Abstract
Peritoneal fibrosis (PF) is a serious complication in various clinical settings, but the mechanisms driving it remain to be fully determined. Connective tissue growth factor (CTGF) is known to regulate fibroblast activities. We therefore examined if CTGF inhibition has anti-fibrotic effects in PF. PF was induced by repetitive intraperitoneal injections of chlorhexidine gluconate (CG) in mice with type I pro-collagen promoter-driven green fluorescent protein (GFP) expression to identify fibroblasts. FG-3019, an anti-CTGF monoclonal antibody, was used to inhibit CTGF. CG-induced PF was significantly attenuated in FG-3019-treated mice. CG challenges induced marked accumulations of proliferating fibroblasts and of myofibroblasts, which were both reduced by FG-3019. Levels of peritoneal CTGF expression were increased by CG challenges, and suppressed in FG-3019-treated mice. FG-3019 treatment also reduced the number of CD31+ vessels and VEGF-A-positive cells in fibrotic peritoneum. In vitro studies using NIH 3T3 fibroblasts and peritoneal mesothelial cells (PMCs) showed that CTGF blockade suppressed TGF-β1-induced fibroblast proliferation and myofibroblast differentiation, PMC mesothelial-to-mesenchymal transition, and VEGF-A production. These findings suggest that the inhibition of CTGF by FG-3019 might be a novel treatment for PF through the regulation of fibroblast and myofibroblast accumulation and angiogenesis.
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Affiliation(s)
- Norihiko Sakai
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan. .,Division of Blood Purification, Kanazawa University Hospital, Kanazawa, 920-8641, Japan.
| | - Miki Nakamura
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | | | - Taito Miyake
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasutaka Kamikawa
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Akihiro Sagara
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasuyuki Shinozaki
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Shinji Kitajima
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Tadashi Toyama
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Akinori Hara
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Yasunori Iwata
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Miho Shimizu
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Kengo Furuichi
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan.,Division of Blood Purification, Kanazawa University Hospital, Kanazawa, 920-8641, Japan
| | - Shuichi Kaneko
- Department of System Biology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
| | - Andrew M Tager
- Center for Immunology and Inflammatory Diseases, Harvard Medical School, Boston, MA, 02114, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Takashi Wada
- Division of Nephrology, Kanazawa University Hospital, Kanazawa, 920-8641, Japan.,Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, 920-8641, Japan
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49
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Liu Y. Earlier and broader roles of Mesp1 in cardiovascular development. Cell Mol Life Sci 2017; 74:1969-1983. [PMID: 28050627 PMCID: PMC11107530 DOI: 10.1007/s00018-016-2448-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 12/13/2016] [Accepted: 12/20/2016] [Indexed: 12/12/2022]
Abstract
Mesoderm posterior 1 is one of earliest markers of the nascent mesoderm. Its best-known function is driving the onset of the cardiovascular system. In the past decade, new evidence supports that Mesp1 acts earlier with greater breadth in cell fate decisions, and through cell-autonomous and cell non-autonomous mechanisms. This review summarizes these new aspects, with an emphasis on the upstream and downstream regulation around Mesp1 and how they may guide cell fate reprogramming.
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Affiliation(s)
- Yu Liu
- Department of Biology and Biochemistry, University of Houston, Houston, TX, 77204, USA.
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50
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Kisseleva T. The origin of fibrogenic myofibroblasts in fibrotic liver. Hepatology 2017; 65:1039-1043. [PMID: 27859502 PMCID: PMC5476301 DOI: 10.1002/hep.28948] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 10/24/2016] [Accepted: 11/08/2016] [Indexed: 12/13/2022]
Abstract
Liver fibrosis results from chronic liver injury of different etiologies. It is characterized by dysregulation of physiological remodeling, activation of myofibroblasts, and formation of a fibrous scar. Myofibroblasts develop contractile functions and secrete the extracellular matrix proteins that form this fibrous scar. Myofibroblasts are not present in the normal liver but activate and proliferate in response to injury and inflammation. This review summarizes the understanding and controversies on the contribution of cell populations to the myofibroblasts in liver fibrosis. (Hepatology 2017;65:1039-1043).
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Affiliation(s)
- Tatiana Kisseleva
- Department of Surgery, University of California–San Diego, San Diego, CA
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