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Hu Y, Zhou C, Zhong Q, Li X, Li J, Shi Y, Ma X, Jiang D, Wang Y, Zhuang S, Liu N. LCZ696, an angiotensin receptor-neprilysin inhibitor, ameliorates epithelial-mesenchymal transition of peritoneal mesothelial cells and M2 macrophage polarization. Ren Fail 2024; 46:2392849. [PMID: 39165231 PMCID: PMC11340223 DOI: 10.1080/0886022x.2024.2392849] [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: 03/11/2024] [Revised: 07/11/2024] [Accepted: 08/09/2024] [Indexed: 08/22/2024] Open
Abstract
AIMS To investigate the effects and mechanisms of LCZ696, an angiotensin receptor-neprilysin inhibitor (ARNI), on epithelial-mesenchymal transition (EMT) of peritoneal mesothelial cells and on macrophage M2 polarization. METHODS We examined the effects of LCZ696 in a 4.25% high glucose peritoneal dialysis fluid (PDF)-induced peritoneal fibrosis (PF) mouse model, and explored the mechanisms of LCZ696 on human peritoneal mesothelial cells (HPMCs) stimulated by TGF-β1 (5 ng/mL) and on Raw264.7 cells stimulated by IL-4 (10 ng/mL). To further elucidate the mechanism, we treated HPMCs with the conditioned medium of Raw264.7 cells. RESULTS LCZ696 effectively improved PF and inhibited the process of EMT in PDF mice. In vitro, LCZ696 also significantly alleviated the EMT of TGF-β1 induced HPMCs, although there was no statistically significant difference when compared to the Valsartan treatment group. Moreover, LCZ696 ameliorates the increased expression of Snail and Slug, two nuclear transcription factors that drive the EMT. Mechanistically, TGF-β1 increased the expression of TGFβRI, p-Smad3, p-PDGFRβ and p-EGFR, while treatment with LCZ696 abrogated the activation of TGF-β/Smad3, PDGFRβ and EGFR signaling pathways. Additionally, exposure of Raw264.7 to IL-4 results in increasing expression of Arginase-1, CD163 and p-STAT6. Treatment with LCZ696 inhibited IL-4-elicited M2 macrophage polarization by inactivating the STAT6 signaling pathway. Furthermore, we observed that LCZ696 inhibits EMT by blocking TGF-β1 secretion from M2 macrophages. CONCLUSION Our study demonstrated that LCZ696 improves PF and ameliorates TGF-β1-induced EMT of HPMCs by blocking TGF-β/Smad3, PDGFRβ and EGFR pathways. Meanwhile, LCZ696 also inhibits M2 macrophage polarization by regulating STAT6 pathway.
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Affiliation(s)
- Yan Hu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Canxin Zhou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qin Zhong
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xialin Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jinqing Li
- 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
| | - Daofang Jiang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, USA
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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2
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Ito Y, Sun T, Tawada M, Kinashi H, Yamaguchi M, Katsuno T, Kim H, Mizuno M, Ishimoto T. Pathophysiological Mechanisms of Peritoneal Fibrosis and Peritoneal Membrane Dysfunction in Peritoneal Dialysis. Int J Mol Sci 2024; 25:8607. [PMID: 39201294 PMCID: PMC11354376 DOI: 10.3390/ijms25168607] [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: 07/24/2024] [Accepted: 08/04/2024] [Indexed: 09/02/2024] Open
Abstract
The characteristic feature of chronic peritoneal damage in peritoneal dialysis (PD) is a decline in ultrafiltration capacity associated with pathological fibrosis and angiogenesis. The pathogenesis of peritoneal fibrosis is attributed to bioincompatible factors of PD fluid and peritonitis. Uremia is associated with peritoneal membrane inflammation that affects fibrosis, neoangiogenesis, and baseline peritoneal membrane function. Net ultrafiltration volume is affected by capillary surface area, vasculopathy, peritoneal fibrosis, and lymphangiogenesis. Many inflammatory cytokines induce fibrogenic growth factors, with crosstalk between macrophages and fibroblasts. Transforming growth factor (TGF)-β and vascular endothelial growth factor (VEGF)-A are the key mediators of fibrosis and angiogenesis, respectively. Bioincompatible factors of PD fluid upregulate TGF-β expression by mesothelial cells that contributes to the development of fibrosis. Angiogenesis and lymphangiogenesis can progress during fibrosis via TGF-β-VEGF-A/C pathways. Complement activation occurs in fungal peritonitis and progresses insidiously during PD. Analyses of the human peritoneal membrane have clarified the mechanisms by which encapsulating peritoneal sclerosis develops. Different effects of dialysates on the peritoneal membrane were also recognized, particularly in terms of vascular damage. Understanding the pathophysiologies of the peritoneal membrane will lead to preservation of peritoneal membrane function and improvements in technical survival, mortality, and quality of life for PD patients.
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Affiliation(s)
- Yasuhiko Ito
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute 480-1195, Japan (H.K.); (M.Y.); (T.I.)
| | - Ting Sun
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute 480-1195, Japan (H.K.); (M.Y.); (T.I.)
| | - Mitsuhiro Tawada
- Department of Nephrology, Imaike Jin Clinic, Nagoya 464-0850, Japan
| | - Hiroshi Kinashi
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute 480-1195, Japan (H.K.); (M.Y.); (T.I.)
| | - Makoto Yamaguchi
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute 480-1195, Japan (H.K.); (M.Y.); (T.I.)
| | - Takayuki Katsuno
- Department of Nephrology and Rheumatology, Aichi Medical University Medical Center, Okazaki 444-2148, Japan;
| | - Hangsoo Kim
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan; (H.K.); (M.M.)
| | - Masashi Mizuno
- Department of Nephrology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan; (H.K.); (M.M.)
| | - Takuji Ishimoto
- Department of Nephrology and Rheumatology, Aichi Medical University, Nagakute 480-1195, Japan (H.K.); (M.Y.); (T.I.)
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Song Q, Li H, Yan H, Yu Z, Li Z, Yuan J, Jiang N, Ni Z, Gu L, Fang W. Inhibition of STAT3 by S3I-201 suppress peritoneal fibroblast phenotype conversion and alleviate peritoneal fibrosis. J Cell Mol Med 2024; 28:e18381. [PMID: 38780509 PMCID: PMC11114217 DOI: 10.1111/jcmm.18381] [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: 03/14/2024] [Revised: 04/22/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Peritoneal fibrosis is a common pathological response to long-term peritoneal dialysis (PD) and a major cause for PD discontinuation. Understanding the cellular and molecular mechanisms underlying the induction and progression of peritoneal fibrosis is of great interest. In our study, in vitro study revealed that signal transducer and activator of transcription 3 (STAT3) is a key factor in fibroblast activation and extracellular matrix (ECM) synthesis. Furthermore, STAT3 induced by IL-6 trans-signalling pathway mediate the fibroblasts of the peritoneal stroma contributed to peritoneal fibrosis. Inhibition of STAT3 exerts an antifibrotic effect by attenuating fibroblast activation and ECM production with an in vitro co-culture model. Moreover, STAT3 plays an important role in the peritoneal fibrosis in an animal model of peritoneal fibrosis developed in mice. Blocking STAT3 can reduce the peritoneal morphological changes induced by chlorhexidine gluconate. In conclusion, our findings suggested STAT3 signalling played an important role in peritoneal fibrosis. Therefore, blocking STAT3 might become a potential treatment strategy in peritoneal fibrosis.
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Affiliation(s)
- Qianhui Song
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Han Li
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Hao Yan
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Zanzhe Yu
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Zhenyuan Li
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Jiangzi Yuan
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Na Jiang
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Leyi Gu
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
| | - Wei Fang
- Department of Nephrology, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiPeople's Republic of China
- Shanghai Center for Peritoneal Dialysis ResearchShanghaiPeople's Republic of China
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4
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Li H, Zhang Y, Che M, Wang H, Li S, He P, Sun S, Xu G, Huang C, Liu X, Bai M, Zhou M, Su B, Zhang P, He L. LncRNA RPL29P2 promotes peritoneal fibrosis and impairs peritoneal transport function via miR-1184 in peritoneal dialysis. Int J Med Sci 2024; 21:1049-1063. [PMID: 38774747 PMCID: PMC11103403 DOI: 10.7150/ijms.93547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 03/28/2024] [Indexed: 05/24/2024] Open
Abstract
Peritoneal dialysis (PD), hemodialysis and kidney transplantation are the three therapies to treat uremia. However, PD is discontinued for peritoneal membrane fibrosis (PMF) and loss of peritoneal transport function (PTF) due to damage from high concentrations of glucose in PD fluids (PDFs). The mechanism behind PMF is unclear, and there are no available biomarkers for the evaluation of PMF and PTF. Using microarray screening, we found that a new long noncoding RNA (lncRNA), RPL29P2, was upregulated in the PM (peritoneal membrane) of long-term PD patients, and its expression level was correlated with PMF severity and the PTF loss. In vitro and rat model assays suggested that lncRNA RPL29P2 targets miR-1184 and induces the expression of collagen type I alpha 1 chain (COL1A1). Silencing RPL29P2 in the PD rat model might suppress the HG-induced phenotypic transition of Human peritoneal mesothelial cells (HPMCs), alleviate HG-induced fibrosis and prevent the loss of PTF. Overall, our findings revealed that lncRNA RPL29P2, which targets miR-1184 and collagen, may represent a useful marker and therapeutic target of PMF in PD patients.
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Affiliation(s)
- Huan Li
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
- Department of Nephrology, the Second People's Hospital of Shaan xi Province, Xi'an, Shaanxi, China
| | - Yuting Zhang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Mingwen Che
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
- Department of Medicine, the 951 Hospital of the PLA, Korla, Xinjiang, China
| | - Hanmin Wang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Sutong Li
- Department of Nephrology, Xi'an Central Hospital, Xi'an, Shaanxi, China
| | - Peng He
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Guoshuang Xu
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chen Huang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiaowei Liu
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ming Bai
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Meilan Zhou
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Binxiao Su
- Department of Anesthesiology and Perioperative Medicine, Department of Intensive Care Unit, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Peng Zhang
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Lijie He
- Department of Nephrology, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
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5
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Xiong C, Deng J, Wang X, Hou Q, Zhuang S. Pharmacological inhibition of Src family kinases attenuates hyperuricemic nephropathy. Front Pharmacol 2024; 15:1352730. [PMID: 38576481 PMCID: PMC10991786 DOI: 10.3389/fphar.2024.1352730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/06/2024] [Indexed: 04/06/2024] Open
Abstract
Hyperuricemia is an independent risk factor for chronic kidney disease and contributes to renal fibrosis. This study aims to investigate the effect of Src family kinase (SFK) inhibition on the development of hyperuricemic nephropathy (HN) and the mechanisms involved. In a rat model of HN, feeding rats a mixture of adenine and potassium oxonate increased Src phosphorylation, severe glomerular sclerosis, and renal interstitial fibrosis, accompanied by renal dysfunction and increased urine microalbumin excretion. Administration of PP1, a highly selective SFK inhibitor, prevented renal dysfunction, reduced urine microalbumin, and inhibited activation of renal interstitial fibroblasts and expression of extracellular proteins. PP1 treatment also inhibited hyperuricemia-induced activation of the TGF-β1/Smad3, STAT3, ERK1/2, and NF-κB signaling pathways and expression of multiple profibrogenic cytokines/chemokines in the kidney. Furthermore, PP1 treatment significantly reduced serum uric acid levels and xanthine oxidase activity. Thus, blocking Src can attenuate development of HN via a mechanism associated with the suppression of TGF-β1 signaling, inflammation, and uric acid production. The results suggest that Src inhibition might be a promising therapeutic strategy for HN.
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Affiliation(s)
- Chongxiang Xiong
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Jin Deng
- Department of Nephrology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xin Wang
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Qidi Hou
- Department of Nephrology, The First Affiliated Hospital of Dongguan, Guangdong Medical University, Dongguan, Guangdong, China
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital and Brown University School of Medicine, Providence, RI, United States
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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6
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Sheng L, Shan Y, Dai H, Yu M, Sun J, Huang L, Wang F, Sheng M. Intercellular communication in peritoneal dialysis. Front Physiol 2024; 15:1331976. [PMID: 38390449 PMCID: PMC10882094 DOI: 10.3389/fphys.2024.1331976] [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: 11/02/2023] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Long-term peritoneal dialysis (PD) causes structural and functional alterations of the peritoneal membrane. Peritoneal deterioration and fibrosis are multicellular and multimolecular processes. Under stimulation by deleterious factors such as non-biocompatibility of PD solution, various cells in the abdominal cavity show differing characteristics, such as the secretion of different cytokines, varying protein expression levels, and transdifferentiation into other cells. In this review, we discuss the role of various cells in the abdominal cavity and their interactions in the pathogenesis of PD. An in-depth understanding of intercellular communication and inter-organ communication in PD will lead to a better understanding of the pathogenesis of this disease, enabling the development of novel therapeutic targets.
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Affiliation(s)
- Li Sheng
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinic Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yun Shan
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huibo Dai
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinic Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Manshu Yu
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinyi Sun
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinic Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Liyan Huang
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinic Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Funing Wang
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
- First Clinic Medical School, Nanjing University of Chinese Medicine, Nanjing, China
| | - Meixiao Sheng
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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7
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Shumliakivska M, Luxán G, Hemmerling I, Scheller M, Li X, Müller-Tidow C, Schuhmacher B, Sun Z, Dendorfer A, Debes A, Glaser SF, Muhly-Reinholz M, Kirschbaum K, Hoffmann J, Nagel E, Puntmann VO, Cremer S, Leuschner F, Abplanalp WT, John D, Zeiher AM, Dimmeler S. DNMT3A clonal hematopoiesis-driver mutations induce cardiac fibrosis by paracrine activation of fibroblasts. Nat Commun 2024; 15:606. [PMID: 38242884 PMCID: PMC10799021 DOI: 10.1038/s41467-023-43003-w] [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: 12/23/2022] [Accepted: 10/27/2023] [Indexed: 01/21/2024] Open
Abstract
Hematopoietic mutations in epigenetic regulators like DNA methyltransferase 3 alpha (DNMT3A), play a pivotal role in driving clonal hematopoiesis of indeterminate potential (CHIP), and are associated with unfavorable outcomes in patients suffering from heart failure (HF). However, the precise interactions between CHIP-mutated cells and other cardiac cell types remain unknown. Here, we identify fibroblasts as potential partners in interactions with CHIP-mutated monocytes. We used combined transcriptomic data derived from peripheral blood mononuclear cells of HF patients, both with and without CHIP, and cardiac tissue. We demonstrate that inactivation of DNMT3A in macrophages intensifies interactions with cardiac fibroblasts and increases cardiac fibrosis. DNMT3A inactivation amplifies the release of heparin-binding epidermal growth factor-like growth factor, thereby facilitating activation of cardiac fibroblasts. These findings identify a potential pathway of DNMT3A CHIP-driver mutations to the initiation and progression of HF and may also provide a compelling basis for the development of innovative anti-fibrotic strategies.
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Affiliation(s)
- Mariana Shumliakivska
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - Guillermo Luxán
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - Inga Hemmerling
- Department of Internal Medicine III, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120, Heidelberg, Germany
| | - Marina Scheller
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Xue Li
- Department of Internal Medicine III, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120, Heidelberg, Germany
| | - Carsten Müller-Tidow
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Bianca Schuhmacher
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Zhengwu Sun
- Walter-Brendel-Centre of Experimental Medicine, Hospital of the Ludwig-Maximilians-University Munich, Marchioninistraße 68, 81377, München, Germany
| | - Andreas Dendorfer
- Walter-Brendel-Centre of Experimental Medicine, Hospital of the Ludwig-Maximilians-University Munich, Marchioninistraße 68, 81377, München, Germany
| | - Alisa Debes
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Simone-Franziska Glaser
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - Marion Muhly-Reinholz
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Klara Kirschbaum
- Department of Medicine, Cardiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Jedrzej Hoffmann
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Institute of Experimental and Translational Cardiovascular Imaging, Centre for Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Eike Nagel
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Institute of Experimental and Translational Cardiovascular Imaging, Centre for Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Valentina O Puntmann
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Institute of Experimental and Translational Cardiovascular Imaging, Centre for Cardiovascular Imaging, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Sebastian Cremer
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
- Department of Medicine, Cardiology, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
| | - Florian Leuschner
- Department of Internal Medicine III, University Hospital Heidelberg, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 69120, Heidelberg, Germany
| | - Wesley Tyler Abplanalp
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - David John
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - Andreas M Zeiher
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany
| | - Stefanie Dimmeler
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
- German Center of Cardiovascular Research (DZHK), Partner Site Rhine/Main, 60439, Frankfurt am Main, Germany.
- Cardiopulmonary Institute (CPI), 60590, Frankfurt, Germany.
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8
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Tao M, Shi Y, Chen H, Li J, Wang Y, Ma X, Du L, Wang Y, Yang X, Hu Y, Zhou X, Zhong Q, Yan D, Qiu A, Zhuang S, Liu N. The disruptor of telomeric silencing 1-like (DOT1L) promotes peritoneal fibrosis through the upregulation and activation of protein tyrosine kinases. MOLECULAR BIOMEDICINE 2024; 5:3. [PMID: 38172378 PMCID: PMC10764708 DOI: 10.1186/s43556-023-00161-z] [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: 08/12/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024] Open
Abstract
The disruptor of telomeric silencing 1-like (DOT1L), a specific histone methyltransferase that catalyzed methylation of histone H3 on lysine 79, was associated with the pathogenesis of many diseases, but its role in peritoneal fibrosis remained unexplored. Here, we examined the role of DOT1L in the expression and activation of protein tyrosine kinases and development of peritoneal fibrosis. We found that a significant rise of DOT1L expression in the fibrotic peritoneum tissues from long-term PD patients and mice. Inhibition of DOT1L significantly attenuated the profibrotic phenotypic differentiation of mesothelial cells and macrophages, and alleviated peritoneal fibrosis. Mechanistically, RNA sequencing and proteomic analysis indicated that DOT1L was mainly involved in the processes of protein tyrosine kinase binding and extracellular matrix structural constituent in the peritoneum. Chromatin immunoprecipitation (ChIP) showed that intranuclear DOT1L guided H3K79me2 to upregulate EGFR in mesothelial cells and JAK3 in macrophages. Immunoprecipitation and immunofluorescence showed that extranuclear DOT1L could interact with EGFR and JAK3, and maintain the activated signaling pathways. In summary, DOT1L promoted the expression and activation of tyrosine kinases (EGFR in mesothelial cells and JAK3 in macrophages), promoting cells differentiate into profibrotic phenotype and thus peritoneal fibrosis. We provide the novel mechanism of dialysis-related peritoneal fibrosis (PF) and the new targets for clinical drug development. DOT1L inhibitor had the PF therapeutic potential.
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Affiliation(s)
- Min Tao
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yingfeng Shi
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Hui Chen
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Jinqing Li
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yi Wang
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Xiaoyan Ma
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Lin Du
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yishu Wang
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Xinyu Yang
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Yan Hu
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Xun Zhou
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Qin Zhong
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Danying Yan
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Andong Qiu
- Shanghai Key Laboratory of Maternal and Fetal Medicine, Clinical and Translational Research Center of Shanghai First Maternity & Infant Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, USA
| | - Na Liu
- Department of Nephrology, Pudong New District, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
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Jash R, Maparu K, Seksaria S, Das S. Decrypting the Pathological Pathways in IgA Nephropathy. RECENT ADVANCES IN INFLAMMATION & ALLERGY DRUG DISCOVERY 2024; 18:43-56. [PMID: 37870060 DOI: 10.2174/0127722708275167231011102924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 10/24/2023]
Abstract
IgAN is the most common form of glomerulonephritis affecting 2000000 people annually. The disease ultimately progresses to chronic renal failure and ESRD. In this article, we focused on a comprehensive understanding of the pathogenesis of the disease and thus identifying different target proteins that could be essential in therapeutic approaches in the management of the disease. Aberrantly glycosylated IgA1 produced by the suppression of the enzyme β-1, 3 galactosyltransferase ultimately triggered the formation of IgG autoantibodies which form complexes with Gd-IgA1. The complex gets circulated through the blood vessels through monocytes and ultimately gets deposited in the glomerular mesangial cells via CD71 receptors present locally. This complex triggers the inflammatory pathways activating the alternate complement system, various types of T Cells, toll-like receptors, cytokines, and chemokines ultimately recruiting the phagocytic cells to eliminate the Gd-IgA complex. The inflammatory proteins cause severe mesangial and podocyte damage in the kidney which ultimately initiates the repair process following chronic inflammation by an important protein named TGFβ1. TGF β1 is an important protein produced during chronic inflammation mediating the repair process via various downstream transduction proteins and ultimately producing fibrotic proteins which help in the repair process but permanently damage the glomerular cells.
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Affiliation(s)
- Rajiv Jash
- Department of Pharmacology, Sanaka Educational Trust's Group Of Institutions, Malandighi, Durgapur, 713212, West Bengal, India
- Department of Pharmacy, JIS University, Kolkata, 700109, West Bengal, India
| | - Kousik Maparu
- Department of Pharmacology, Sanaka Educational Trust's Group Of Institutions, Malandighi, Durgapur, 713212, West Bengal, India
| | - Sanket Seksaria
- Department of Pharmacology, Sanaka Educational Trust's Group Of Institutions, Malandighi, Durgapur, 713212, West Bengal, India
| | - Saptarshi Das
- Department of Pharmacy, JIS University, Kolkata, 700109, West Bengal, India
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10
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Si Z, Su W, Zhou Z, Li J, Su C, Zhang Y, Hu Z, Huang Z, Zhou H, Cong A, Zhou Z, Cao W. Hyperglycolysis in endothelial cells drives endothelial injury and microvascular alterations in peritoneal dialysis. Clin Transl Med 2023; 13:e1498. [PMID: 38037461 PMCID: PMC10689974 DOI: 10.1002/ctm2.1498] [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: 05/29/2023] [Revised: 11/13/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND Endothelial cell (EC) dysfunction leading to microvascular alterations is a hallmark of technique failure in peritoneal dialysis (PD). However, the mechanisms underlying EC dysfunction in PD are poorly defined. METHODS We combined RNA sequencing with metabolite set analysis to characterize the metabolic profile of peritoneal ECs from a mouse model of PD. This was combined with EC-selective blockade of glycolysis by genetic or pharmacological inhibition of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) in vivo and in vitro. We also investigated the association between peritoneal EC glycolysis and microvascular alterations in human peritoneal samples from patients with end-stage kidney disease (ESKD). RESULTS In a mouse model of PD, peritoneal ECs had a hyperglycolytic metabolism that shunts intermediates into nucleotide synthesis. Hyperglycolytic mouse peritoneal ECs displayed a unique active phenotype with increased proliferation, permeability and inflammation. The active phenotype of mouse peritoneal ECs can be recapitulated in human umbilical venous ECs and primary human peritoneal ECs by vascular endothelial growth factor that was released from high glucose-treated mesothelial cells. Importantly, reduction of peritoneal EC glycolysis, via endothelial deficiency of the glycolytic activator PFKFB3, inhibited PD fluid-induced increases in peritoneal capillary density, vascular permeability and monocyte extravasation, thereby protecting the peritoneum from the development of structural and functional damages. Mechanistically, endothelial PFKFB3 deficiency induced the protective effects in part by inhibiting cell proliferation, VE-cadherin endocytosis and monocyte-adhesion molecule expression. Pharmacological PFKFB3 blockade induced a similar therapeutic benefit in this PD model. Human peritoneal tissue from patients with ESKD also demonstrated evidence of increased EC PFKFB3 expression associated with microvascular alterations and peritoneal dysfunction. CONCLUSIONS These findings reveal a critical role of glycolysis in ECs in mediating the deterioration of peritoneal function and suggest that strategies targeting glycolysis in peritoneal ECs may be of therapeutic benefit for patients undergoing PD.
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Affiliation(s)
- Zekun Si
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Wenyan Su
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhuoyu Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Jinjin Li
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Cailing Su
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Ying Zhang
- Division of NephrologyThe Second Affiliated Hospital of Guangzhou Medical UniversityGuangzhouP. R. China
| | - Zuoyu Hu
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhijie Huang
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Hong Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Ansheng Cong
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Zhanmei Zhou
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
| | - Wei Cao
- Division of NephrologyState Key Laboratory of Organ Failure ResearchGuangdong Provincial Key Laboratory of NephrologyGuangdong Provincial Clinical Research Center for Kidney DiseaseNanfang HospitalSouthern Medical UniversityGuangzhouP. R. China
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11
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Lu J, Gao J, Sun J, Wang H, Sun H, Huang Q, Zhang Y, Zhong S. Apolipoprotein A-I attenuates peritoneal fibrosis associated with peritoneal dialysis by inhibiting oxidative stress and inflammation. Front Pharmacol 2023; 14:1106339. [PMID: 37576813 PMCID: PMC10422021 DOI: 10.3389/fphar.2023.1106339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023] Open
Abstract
Apolipoprotein A-I (apoA-I), 90% of which is present in high-density lipoprotein (HDL), is the main constituent of HDL, has anti-inflammatory and anti-oxidant properties, and has received extensive attention in anti-atherosclerosis. Yet little is known about apoA-I 's role in peritoneal dialysis. In this study, by analyzing PD patients (n = 81), we found that decreased apoA/HDL-C ratio is significantly associated with rapid decline in peritoneal function. Further studies were performed in animal experiments to determine the ascendancy of apolipoprotein A-I mimetic peptide (D-4F) on peritoneum, we found that D-4F administration reduced peritoneal fibrosis and peritoneal endothelial mesenchymal transformation (EMT) induced by high glucose peritoneal dialysate, such as N-cadherin, Fibronectin, Vimentin, and α-smooth muscle actin (α-SMA) expression decreased. In mechanism, D-4F can significantly inhibit Smad2/3 phosphorylation, which is the major pathway leading to fibrosis. Furthermore, D-4F treatment inhibited NADPH oxidase and thiobarbituric acid reactive substances (TBARS) expression, increased the activity of certain enzymes, such as superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px). Finally, treatment with D-4F inhibits the expression of interleukins-6(IL-6), Interleukin-1β(IL-1β), and tumor necrosis factor-α(TNF-α). Taken together, based on the above research evidence, apoA-I and its peptide mimic may regulate the oxidative stress, TGF- β1/Smads signaling pathway and inflammatory response to reduce peritoneal fibrosis due to peritoneal dialysis.
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Affiliation(s)
- Jing Lu
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jie Gao
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jing Sun
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Haiping Wang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Huijuan Sun
- Jinzhou First People’s Hospital, Dalian, China
| | - Qian Huang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yao Zhang
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Shuo Zhong
- Department of Nephrology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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12
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Syed MA, Bhat B, Wali A, Saleem A, Ahmad Dar L, Gugjoo MB, Bhat S, Saleem Bhat S. Epithelial to mesenchymal transition in mammary gland tissue fibrosis and insights into drug therapeutics. PeerJ 2023; 11:e15207. [PMID: 37187521 PMCID: PMC10178283 DOI: 10.7717/peerj.15207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/19/2023] [Indexed: 05/17/2023] Open
Abstract
Background The epithelial-mesenchymal transition (EMT) is a multi-step morphogenetic process in which epithelial cells lose their epithelial properties and gain mesenchymal characteristics. The process of EMT has been shown to mediate mammary gland fibrosis. Understanding how mesenchymal cells emerge from an epithelial default state will aid in unravelling the mechanisms that control fibrosis and, ultimately, in identifying therapeutic targets to alleviate fibrosis. Methods The effects of EGF and high glucose (HG) on EMT in mammary epithelial cells, MCF10A and GMECs, as well as their pathogenic role, were studied. In-silico analysis was used to find interacting partners and protein-chemical/drug molecule interactions. Results On treatment with EGF and/or HG, qPCR analysis showed a significant increase in the gene expression of EMT markers and downstream signalling genes. The expression of these genes was reduced on treatment with EGF+HG combination in both cell lines. The protein expression of COL1A1 increased as compared to the control in cells treated with EGF or HG alone, but when the cells were treated with EGF and HG together, the protein expression of COL1A1 decreased. ROS levels and cell death increased in cells treated with EGF and HG alone, whereas cells treated with EGF and HG together showed a decrease in ROS production and apoptosis. In-silico analysis of protein-protein interactions suggest the possible role of MAPK1, actin alpha 2 (ACTA2), COL1A1, and NFκB1 in regulating TGFβ1, ubiquitin C (UBC), specificity protein 1 (SP1) and E1A binding protein P300 (EP300). Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment suggests advanced glycation end products-receptor for advanced glycation end products (AGE-RAGE) signalling pathway, relaxin signalling pathway and extra cellular matrix (ECM) receptor interactions underlying fibrosis mechanism. Conclusion This study demonstrates that EGF and HG induce EMT in mammary epithelial cells and may also have a role in fibrosis.
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Affiliation(s)
- Mudasir Ahmad Syed
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
| | - Basharat Bhat
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
| | - Abiza Wali
- Department of Clinical Biochemistry, University of Kashmir, Srinagar, Jammu and Kashmir, India
| | - Afnan Saleem
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
| | - Lateef Ahmad Dar
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
| | - Mudasir Bashir Gugjoo
- Division of Veterinary Surgery, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Faculty of Veterinary Sciences and Animal Husbandry, Shuhama, SKUAST-K, India, Srinagar, Jammu and Kashmir, India
| | - Shakil Bhat
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
| | - Sahar Saleem Bhat
- Division of Animal Biotechnology, Faculty of Veterinary Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, India, Srinagar, India
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13
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Zhou X, Chen H, Shi Y, Li J, Ma X, Du L, Hu Y, Tao M, Zhong Q, Yan D, Zhuang S, Liu N. Histone deacetylase 8 inhibition prevents the progression of peritoneal fibrosis by counteracting the epithelial-mesenchymal transition and blockade of M2 macrophage polarization. Front Immunol 2023; 14:1137332. [PMID: 36911746 PMCID: PMC9995794 DOI: 10.3389/fimmu.2023.1137332] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Background Peritoneal dialysis (PD) is an effective replacement therapy for end-stage renal disease patients. However, long-term exposure to peritoneal dialysate will lead to the development of peritoneal fibrosis. Epigenetics has been shown to play an important role in peritoneal fibrosis, but the role of histone deacetylases 8 (HDAC8) in peritoneal fibrosis have not been elucidated. In this research, we focused on the role and mechanisms of HDAC8 in peritoneal fibrosis and discussed the mechanisms involved. Methods We examined the expression of HDAC8 in the peritoneum and dialysis effluent of continuous PD patients. Then we assessed the role and mechanism of HDAC8 in peritoneal fibrosis progression in mouse model of peritoneal fibrosis induced by high glucose peritoneal dialysis fluid by using PCI-34051. In vitro, TGF-β1 or IL-4 were used to stimulate human peritoneal mesothelial cells (HPMCs) or RAW264.7 cells to establish two cell injury models to further explore the role and mechanism of HDAC8 in epithelial-mesenchymal transition (EMT) and macrophage polarization. Results We found that HDAC8 expressed highly in the peritoneum from patients with PD-related peritonitis. We further revealed that the level of HDAC8 in the dialysate increased over time, and HDAC8 was positively correlated with TGF-β1 and vascular endothelial growth factor (VEGF), and negatively correlated with cancer antigen 125. In mouse model of peritoneal fibrosis induced by high glucose dialysate, administration of PCI-34051 (a selective HDAC8 inhibitor) significantly prevented the progression of peritoneal fibrosis. Treatment with PCI-34051 blocked the phosphorylation of epidermal growth factor receptor (EGFR) and the activation of its downstream signaling pathways ERK1/2 and STAT3/HIF-1α. Inhibition of HDAC8 also reduced apoptosis. In vitro, HDAC8 silencing with PCI-34051 or siRNA inhibited TGF-β1-induced EMT and apoptosis in HPMCs. In addition, continuous high glucose dialysate or IL-4 stimulation induced M2 macrophage polarization. Blockade of HDAC8 reduced M2 macrophage polarization by inhibiting the activation of STAT6 and PI3K/Akt signaling pathways. Conclusions We demonstrated that HDAC8 promoted the EMT of HPMCs via EGFR/ERK1/2/STAT3/HIF-1α, induced M2 macrophage polarization via STAT6 and PI3K/Akt signaling pathways, and ultimately accelerated the process of peritoneal fibrosis.
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Affiliation(s)
- Xun Zhou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Chen
- 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
| | - Jinqing Li
- 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
| | - Lin Du
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan Hu
- 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
| | - Qin Zhong
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Danying Yan
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, United States
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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14
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Wu F, Li Y, Yang Q, Wang C, Hou L, Liu W, Hou C. Transcriptome sequencing analysis of primary fibroblasts: a new insight into postoperative abdominal adhesion. Surg Today 2022; 52:151-164. [PMID: 34120243 DOI: 10.1007/s00595-021-02321-6] [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: 02/15/2021] [Accepted: 04/22/2021] [Indexed: 11/09/2022]
Abstract
PURPOSE The specific genes or pathways in fibroblasts responsible for the pathogenesis of postoperative abdominal adhesion (PAA) remain to be elucidated. We aim to provide a new insight into disease mechanisms at the transcriptome level. METHODS Male Sprague-Dawley rats were used to establish a PAA model. Primary fibroblasts were separated from normal peritoneal tissue (NF) and postoperative adhesion tissue (PF). RNA sequencing was used to analyze the transcriptome in NF and PF. RESULTS One thousand two hundred thirty-five upregulated and 625 downregulated DEGs were identified through RNA-Seq. A pathway enrichment analysis identified distinct enriched biological processes, among which the most prominent was related to immune and inflammatory response and fibrosis. HE staining and Masson's trichrome staining histologically validated the RNA-Seq results. Six hub genes, ITGAM, IL-1β, TNF, IGF1, CSF1R and EGFR were further verified by RT-PCR. CONCLUSIONS Our study revealed the roles of the immune and inflammatory responses and fibrosis in the process of PAA. We also found six hub genes that may be potential therapeutic targets for PPA.
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Affiliation(s)
- Fuling Wu
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Yilei Li
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Qin Yang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Canmao Wang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lianbing Hou
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - Wenqin Liu
- Biopharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Chuqi Hou
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
- Biopharmaceutics, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China.
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15
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Zindel J, Mittner J, Bayer J, April-Monn SL, Kohler A, Nusse Y, Dosch M, Büchi I, Sanchez-Taltavull D, Dawson H, Gomez de Agüero M, Asahina K, Kubes P, Macpherson AJ, Stroka D, Candinas D. Intraperitoneal microbial contamination drives post-surgical peritoneal adhesions by mesothelial EGFR-signaling. Nat Commun 2021; 12:7316. [PMID: 34916513 PMCID: PMC8677808 DOI: 10.1038/s41467-021-27612-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/01/2021] [Indexed: 12/19/2022] Open
Abstract
Abdominal surgeries are lifesaving procedures but can be complicated by the formation of peritoneal adhesions, intra-abdominal scars that cause intestinal obstruction, pain, infertility, and significant health costs. Despite this burden, the mechanisms underlying adhesion formation remain unclear and no cure exists. Here, we show that contamination of gut microbes increases post-surgical adhesion formation. Using genetic lineage tracing we show that adhesion myofibroblasts arise from the mesothelium. This transformation is driven by epidermal growth factor receptor (EGFR) signaling. The EGFR ligands amphiregulin and heparin-binding epidermal growth factor, are sufficient to induce these changes. Correspondingly, EGFR inhibition leads to a significant reduction of adhesion formation in mice. Adhesions isolated from human patients are enriched in EGFR positive cells of mesothelial origin and human mesothelium shows an increase of mesothelial EGFR expression during bacterial peritonitis. In conclusion, bacterial contamination drives adhesion formation through mesothelial EGFR signaling. This mechanism may represent a therapeutic target for the prevention of adhesions after intra-abdominal surgery.
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Affiliation(s)
- Joel Zindel
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Department of Pharmacology and Physiology and Snyder Institute for Chronic Diseases and Department of Microbiology, Immunology & Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
| | - Jonas Mittner
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Julia Bayer
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Simon L April-Monn
- Clinical Pathology Division and Translational Research Unit, Institute of Pathology, University of Bern, Bern, Switzerland
| | - Andreas Kohler
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Ysbrand Nusse
- Department of Pharmacology and Physiology and Snyder Institute for Chronic Diseases and Department of Microbiology, Immunology & Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Michel Dosch
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Isabel Büchi
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Daniel Sanchez-Taltavull
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Heather Dawson
- Clinical Pathology Division and Translational Research Unit, Institute of Pathology, University of Bern, Bern, Switzerland
| | - Mercedes Gomez de Agüero
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Kinji Asahina
- Southern California Research Center for Alcoholic Liver and Pancreatic Diseases and Cirrhosis and Department of Pathology, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
- Central Research Laboratory, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Paul Kubes
- Department of Pharmacology and Physiology and Snyder Institute for Chronic Diseases and Department of Microbiology, Immunology & Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Andrew J Macpherson
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Deborah Stroka
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Daniel Candinas
- Department of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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16
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Shi Y, Hu Y, Wang Y, Ma X, Tang L, Tao M, Qiu A, Zhuang S, Liu N. Blockade of Autophagy Prevents the Development and Progression of Peritoneal Fibrosis. Front Pharmacol 2021; 12:724141. [PMID: 34497522 PMCID: PMC8419262 DOI: 10.3389/fphar.2021.724141] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
Peritoneal fibrosis (PF) is a major cause of ultrafiltration failure in long-term peritoneal dialysis (PD) patients. Nevertheless, limited measures have been shown to be effective for the prevention and treatment of PF. Some views reveal that activation of autophagy ameliorates PF but others demonstrate that autophagy promotes PF. It is obvious that the role of autophagy in PF is controversial and further studies are needed. Here, we investigated the role of autophagy in rat models of PF and damaged cultured human peritoneal mesothelial cells (HPMCs). Autophagy was highly activated in fibrotic peritoneum from two PF rat models induced by 4.25% peritoneal dialysate fluid (PDF) and 0.1% chlorhexidine gluconate (CG). Blockade of autophagy with 3-MA effectively prevented PF in both models and reversed epithelial to mesenchymal transition (EMT) by down-regulating TGF-β/Smad3 signaling pathway and downstream nuclear transcription factors Slug and Snail. Treatment with 3-MA also inhibited activation of EGFR/ERK1/2 signaling pathway during PF. Moreover, 3-MA prominently decreased STAT3/NF-κB-mediated inflammatory response and macrophage infiltration, and prevented peritoneal angiogenesis through downregulation of β-catenin signal. In addition, TGF-β1 stimulation up-regulated autophagic activity as evidenced by the increased autophagosome in vitro. Exposure of HPMCs to TGF-β1 resulted in the induction of EMT and activation of TGF-β/Smad3, EGFR/ERK1/2 signaling pathways. Treatment with 3-MA blocked all these responses. In addition, delayed administration of 3-MA was effective in reducing EMT induced by TGF-β1. Taken together, our study indicated that autophagy might promote PF and 3-MA had anti-fibrosis effect in vivo and in vitro. These results suggest that autophagy could be a potential target on PF therapy for clinical patients with long-term PD.
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Affiliation(s)
- Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yan Hu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Wang
- 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
| | - Lunxian Tang
- Emergency Department of Critical Care Medicine, 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 Science 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 Alpert Medical School, Brown University, Providence, RI, United States
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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17
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Yang X, Bao M, Fang Y, Yu X, Ji J, Ding X. STAT3/HIF-1α signaling activation mediates peritoneal fibrosis induced by high glucose. J Transl Med 2021; 19:283. [PMID: 34193173 PMCID: PMC8246671 DOI: 10.1186/s12967-021-02946-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/17/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Epithelial-mesenchymal transition (EMT) of mesothelial cells is a key step in the peritoneal fibrosis (PF). Recent evidence indicates that signal transducer and activator of transcription 3 (STAT3) might mediate the process of renal fibrosis, which could induce the expression of hypoxia-inducible factor-1α (HIF-1α). Here, we investigated the effect of STAT3 activation on HIF-1α expression and the EMT of mesothelial cells, furthermore the role of pharmacological blockade of STAT3 in the process of PF during peritoneal dialysis (PD) treatment. METHODS Firstly, we investigated the STAT3 signaling in human peritoneal mesothelial cells (HPMCs) from drained PD effluent. Secondly, we explored the effect of STAT3 signaling activation on the EMT and the expression of HIF-1α in human mesothelial cells (Met-5A) induced by high glucose. Finally, peritoneal fibrosis was induced by daily intraperitoneal injection with peritoneal dialysis fluid (PDF) so as to explore the role of pharmacological blockade of STAT3 in this process. RESULTS Compared with the new PD patient, the level of phosphorylated STAT3 was up-regulated in peritoneal mesothelial cells from long-term PD patients. High glucose (60 mmol/L) induced over-expression of Collagen I, Fibronectin, α-SMA and reduced the expression of E-cadherin in Met-5A cells, which could be abrogated by STAT3 inhibitor S3I-201 pretreatment as well as by siRNA for STAT3. Furthermore, high glucose-mediated STAT3 activation in mesothelial cells induced the expression of HIF-1α and the profibrotic effect of STAT3 signaling was alleviated by siRNA for HIF-1α. Daily intraperitoneal injection of high-glucose based dialysis fluid (HG-PDF) induced peritoneal fibrosis in the mice, accompanied by the phosphorylation of STAT3. Immunostaining showed that phosphorylated STAT3 was expressed mostly in α-SMA positive cells in the peritoneal membrane induced by HG-PDF. Administration of S3I-201 prevented the progression of peritoneal fibrosis, angiogenesis, macrophage infiltration as well as the expression of HIF-1α in the peritoneal membrane induced by high glucose. CONCLUSIONS Taken together, these findings identified a novel mechanism linking STAT3/HIF-1α signaling to peritoneal fibrosis during long-term PD treatment. It provided the first evidence that pharmacological inhibition of STAT3 signaling attenuated high glucose-mediated mesothelial cells EMT as well as peritoneal fibrosis.
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Affiliation(s)
- Xiaoxiao Yang
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.,Shanghai Medical Center of Kidney, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Hemodialysis Quality Control Center of Shanghai, Shanghai, China
| | - Manchen Bao
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.,Shanghai Medical Center of Kidney, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Hemodialysis Quality Control Center of Shanghai, Shanghai, China
| | - Yi Fang
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.,Shanghai Medical Center of Kidney, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Hemodialysis Quality Control Center of Shanghai, Shanghai, China
| | - Xiaofang Yu
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China.,Shanghai Medical Center of Kidney, Shanghai, China.,Shanghai Institute of Kidney and Dialysis, Shanghai, China.,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China.,Hemodialysis Quality Control Center of Shanghai, Shanghai, China
| | - Jun Ji
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China. .,Shanghai Medical Center of Kidney, Shanghai, China. .,Shanghai Institute of Kidney and Dialysis, Shanghai, China. .,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China. .,Hemodialysis Quality Control Center of Shanghai, Shanghai, China.
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, People's Republic of China. .,Shanghai Medical Center of Kidney, Shanghai, China. .,Shanghai Institute of Kidney and Dialysis, Shanghai, China. .,Shanghai Key Laboratory of Kidney and Blood Purification, Shanghai, China. .,Hemodialysis Quality Control Center of Shanghai, Shanghai, China.
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18
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Yu C, Yang N, Wang W, Du X, Tang Q, Lin H, Li L. Blocking core fucosylation of epidermal growth factor (EGF) receptor prevents peritoneal fibrosis progression. Ren Fail 2021; 43:869-877. [PMID: 33993842 PMCID: PMC8143636 DOI: 10.1080/0886022x.2021.1918557] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Peritoneal fibrosis (PF) ultimately causes ultrafiltration failure and peritoneal dialysis (PD) termination, but there are few effective therapies for it. Core fucosylation, which is catalyzed by α1,6-fucosyltransferase (Fut8) in mammals, may play a crucial role in PF development. This study aims to assess the effects of inhibiting core fucosylation of epidermal growth factor (EGF) receptor on PF rats. METHODS PF rats (established by 4.25% glucose dialysate) were treated with either an adenovirus-Fut8 short hairpin RNA (Fut8shRNA) or adenovirus-control. Masson's staining and net ultrafiltration were performed at week six. Fut8 level and core fucosylation of EGF receptor and collagen I in the peritoneal membrane were assessed, and EGF signaling was detected, including signal transducer and activator of transcription 3 (STAT3), nuclear factor kappa B (NF-κB) and their phosphorylation. Monocyte chemoattractant protein-1 (MCP-1) in peritoneal effluent was examined. RESULTS Fut8 was upregulated in PF rats but decreased after Fut8shRNA treatment. EGF and EGF receptor expression was upregulated in PF rats, while core fucosylation of EGF receptor decreased after Fut8shRNA treatment. Masson's staining results showed an increase in peritoneal thickness in PF rats but a decrease after Fut8shRNA treatment. Fut8shRNA treatment increased net ultrafiltration, reduced the expression of collagen I and MCP-1 compared to PF rats. Fut8shRNA treatment suppressed phosphorylation of STAT3 and NF-κB in the peritoneal membrane of PF rats. CONCLUSIONS Fut8shRNA treatment ameliorated the fibrotic changes in PF rats. A potential mechanism may be that Fut8shRNA treatment inactivated EGF signaling pathway by suppressing the phosphorylation of STAT3 and NF-κB.
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Affiliation(s)
- Changqing Yu
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ning Yang
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Weidong Wang
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiangning Du
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Qingzhu Tang
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hongli Lin
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Longkai Li
- Department of Nephrology, Liaoning Translational Medicine Center of Nephrology, First Affiliated Hospital of Dalian Medical University, Dalian, China
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19
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Liu F, Yu C, Qin H, Zhang S, Fang L, Wang Y, Wang J, Cui B, Hu S, Liu N, Zhuang S. Nintedanib attenuates peritoneal fibrosis by inhibiting mesothelial-to-mesenchymal transition, inflammation and angiogenesis. J Cell Mol Med 2021; 25:6103-6114. [PMID: 33949772 PMCID: PMC8256343 DOI: 10.1111/jcmm.16518] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 02/17/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Nintedanib, an Food and Drug Administration (FDA) approved multiple tyrosine kinase inhibitor, exhibits an anti-fibrotic effect in lung and kidneys. Its effect on peritoneal fibrosis remains unexplored. In this study, we found that nintedanib administration lessened chlorhexidine gluconate (CG)-induced peritoneal fibrosis and reduced collagen I and fibronectin expression. This coincided with suppressed phosphorylation of platelet-derived growth factor receptor, fibroblast growth factor receptors, vascular endothelial growth factor receptor and Src family kinase. Mechanistically, nintedanib inhibited injury-induced mesothelial-to-mesenchymal transition (MMT), as demonstrated by decreased expression of α-smooth muscle antigen and vimentin and preserved expression of E-cadherin in the CG-injured peritoneum and cultured human peritoneal mesothelial cells exposed to transforming growth factor-β1. Nintedanib also suppressed expression of Snail and Twist, two transcription factors associated with MMT in vivo and in vitro. Moreover, nintedanib treatment inhibited expression of several cytokines/chemokines, including tumour necrosis factor-α, interleukin-1β and interleukin-6, monocyte chemoattractant protein-1 and prevented infiltration of macrophages to the injured peritoneum. Finally, nintedanib reduced CG-induced peritoneal vascularization. These data suggest that nintedanib may attenuate peritoneal fibrosis by inhibiting MMT, inflammation, and angiogenesis and have therapeutic potential for the prevention and treatment of peritoneal fibrosis in patients on peritoneal dialysis.
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Affiliation(s)
- Feng Liu
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Chao Yu
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Huan Qin
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Shenglei Zhang
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Lu Fang
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Yi Wang
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Jun Wang
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Binbin Cui
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Susie Hu
- Department of MedicineRhode Island Hospital and Alpert Medical SchoolBrown UniversityProvidenceRIUSA
| | - Na Liu
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
| | - Shougang Zhuang
- Department of NephrologyShanghai East HospitalTongji University School of MedicineShanghaiChina
- Department of MedicineRhode Island Hospital and Alpert Medical SchoolBrown UniversityProvidenceRIUSA
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20
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Li YC, Sung PH, Yang YH, Chiang JY, Yip HK, Yang CC. Dipeptidyl peptidase 4 promotes peritoneal fibrosis and its inhibitions prevent failure of peritoneal dialysis. Commun Biol 2021; 4:144. [PMID: 33514826 PMCID: PMC7846859 DOI: 10.1038/s42003-021-01652-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 01/04/2021] [Indexed: 12/14/2022] Open
Abstract
Peritoneal dialysis (PD) possesses multiple advantages for end stage renal disease. However, long-term PD triggers peritoneal fibrosis (PF). From the nationwide analysis of diabetic PD patients (n = 19,828), we identified the incidence of PD failure was significantly lower in diabetic patients treated with dipeptidyl peptidase 4 (DPP4) inhibitors. Experimental study further showed high concentration of glucose remarkably enhanced DPP4 to promote epithelial-mesenchymal transition (EMT) in the mesothelial cells. In chlorhexidine gluconate (CG)-induced PF model of rats, DPP4 expression was enriched at thickening peritoneum. Moreover, as to CG-induced PF model, DPP4 deficiency (F344/DuCrlCrlj strain), sitagliptin and exendin-4 treatments significantly inhibited DPP4 to reverse the EMT process, angiogenesis, oxidative stress, and inflammation, resulting in the protection from PF, preservation of peritoneum and the corresponding functional integrity. Furthermore, DPP4 activity was significantly correlated with peritoneal dysfunction. Taken together, DPP4 caused peritoneal dysfunction/PF, whereas inhibition of DPP4 protected the PD patients against PD failure.
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Affiliation(s)
- Yi-Chen Li
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pei-Hsun Sung
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yao-Hsu Yang
- Department of Traditional Chinese Medicine, Chang Gung Memorial Hospital, Chiayi Branch, Putzu, Taiwan
- Health Information and Epidemiology Laboratory of Chang Gung Memorial Hospital, Chiayi Branch, Putzu, Taiwan
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
- Institute of Occupational Medicine and Industrial Hygiene, National Taiwan University College of Public Health, Taipei, Taiwan
| | - John Y Chiang
- Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hon-Kan Yip
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
- Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
- Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
- Department of Nursing, Asia University, Taichung, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.
- Division of Cardiology, Department of Internal Medicine, Xiamen Chang Gung Hospital, Xiamen, Fujian, China.
| | - Chih-Chao Yang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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21
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Hosotani M, Ichii O, Nakamura T, Namba T, Islam MR, Elewa YHA, Watanabe T, Ueda H, Kon Y. Anatomy and histology of the foramen of ovarian bursa opening to the peritoneal cavity and its changes in autoimmune disease-prone mice. J Anat 2021; 238:73-85. [PMID: 32869289 PMCID: PMC7754971 DOI: 10.1111/joa.13299] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 01/03/2023] Open
Abstract
The ovarian bursa is a small peritoneal cavity enclosed by the mesovarium and mesosalpinx, which surrounds the ovaries and oviductal infundibulum in mammals. The ovarian bursa is considered as the structure facilitating the transport of ovulated oocytes into the oviduct. Our previous study revealed reduced oocyte pick-up function in the oviduct of lupus-prone MRL/MpJ-Faslpr/lpr mouse, suggesting the possibility of an escape of ovulated oocytes into the peritoneal cavity, despite the presence of an almost complete ovarian bursa in the mouse. In this study, we revealed anatomical and histological characteristics of the ovarian bursa in C57BL/6 N, MRL/MpJ, and MRL/MpJ-Faslpr/lpr mice. All strains had the foramen of ovarian bursa (FOB), with a size of approximately 0.04 to 0.12 cm2 , surrounded by the ligament of ovarian bursa (LOB), which is part of the mesosalpinx. The LOB was partially lined with the cuboidal mesothelial cells and consisted of a thick smooth muscle layer in all strains. In 6-month-old MRL/MpJ-Faslpr/lpr mice, in which the systemic autoimmune abnormality deteriorated and oocyte pick-up function was impaired, the size of the FOB tended to be larger than that of other strains. Additionally, in MRL/MpJ-Faslpr/lpr mice at 6 months of age, there was infiltration by numerous immune cells in the mesosalpinx suspending the isthmus; however, the LOB prevented severe inflammation and showed deposition of collagen fibers. These results not only indicate that the FOB is a common structure within mice, but also imply the physiological function of the LOB and its role in maintaining the microenvironment around the ovary, as well as regulating healthy reproduction.
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Affiliation(s)
- Marina Hosotani
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Osamu Ichii
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Laboratory of Agrobiomedical ScienceFaculty of AgricultureHokkaido UniversitySapporoHokkaidoJapan
| | - Teppei Nakamura
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Section of Biological Safety ResearchChitose LaboratoryJapan Food Research LaboratoriesChitoseHokkaidoJapan
| | - Takashi Namba
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Md. Rashedul Islam
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Yaser Hosny Ali Elewa
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- Department of Histology and CytologyFaculty of Veterinary MedicineZagazig UniversityZagazigEgypt
| | - Takafumi Watanabe
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Hiromi Ueda
- Laboratory of Veterinary AnatomyDepartment of Veterinary MedicineSchool of Veterinary MedicineRakuno Gakuen UniversityEbetsuHokkaidoJapan
| | - Yasuhiro Kon
- Laboratory of AnatomyDepartment of Basic Veterinary ScienceFaculty of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
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22
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Chen X, Yu C, Hou X, Li J, Li T, Qiu A, Liu N, Zhuang S. Histone deacetylase 6 inhibition mitigates renal fibrosis by suppressing TGF-β and EGFR signaling pathways in obstructive nephropathy. Am J Physiol Renal Physiol 2020; 319:F1003-F1014. [PMID: 33103445 DOI: 10.1152/ajprenal.00261.2020] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We have recently shown that histone deacetylase 6 (HDAC6) is critically involved in the pathogenesis of acute kidney injury. Its role in renal fibrosis, however, remains unclear. In this study, we examined the effect of ricolinostat (ACY-1215), a selective inhibitor of HDAC6, on the development of renal fibrosis in a murine model induced by unilateral ureteral obstruction (UUO). HDAC6 was highly expressed in the kidney following UUO injury, which was coincident with deposition of collagen fibrils and expression of α-smooth muscle actin, fibronectin, and collagen type III. Administration of ACY-1215 reduced these fibrotic changes and inhibited UUO-induced expression of transforming growth factor-β1 and phosphorylation of Smad3 while increasing expression of Smad7. ACY-1215 treatment also suppressed phosphorylation of epidermal growth factor receptor (EGFR) and several signaling molecules associated with renal fibrogenesis, including AKT, STAT3, and NF-κB in the injured kidney. Furthermore, ACY-1215 was effective in inhibiting dedifferentiation of renal fibroblasts to myofibroblasts and the fibrotic change of renal tubular epithelial cells in culture. Collectively, these results indicate that HDAC6 inhibition can attenuate development of renal fibrosis by suppression of transforming growth factor-β1 and EGFR signaling and suggest that HDAC6 would be a potential therapeutic target for the treatment of renal fibrosis.
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Affiliation(s)
- Xingying Chen
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chao Yu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiying Hou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jialu Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Tingting Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island
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23
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Feng L, Li W, Chao Y, Huan Q, Lu F, Yi W, Jun W, Binbin C, Na L, Shougang Z. Synergistic Inhibition of Renal Fibrosis by Nintedanib and Gefitinib in a Murine Model of Obstructive Nephropathy. KIDNEY DISEASES 2020; 7:34-49. [PMID: 33614732 DOI: 10.1159/000509670] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022]
Abstract
Background Our recent studies demonstrated that both nintedanib, an FDA-approved quadruple kinase inhibitor, and gefitinib, an epidermal growth factor receptor (EGFR) inhibitor, protect against obstructive kidney disease. It remains unknown whether they have a synergistic effect. Methods In this study, we investigated the effect of combined administration of nintedanib and gefitinib on renal fibrosis in a murine model of renal fibrosis induced by unilateral ureteral obstruction (UUO). Results Combined treatment with nintedanib and gefitinib after UUO resulted in a greater antifibrotic effect compared with their individual application. Mechanistically, administration of nintedanib blocked UUO-induced phosphorylation of multiple kinase receptors associated renal fibrosis, including platelet-derived growth factor receptors, fibroblast growth factor receptors, vascular endothelial growth factor receptors, and Src family kinase, while gefitinib inhibited EGFR phosphorylation. Their combination also exhibited a more pronounced effect in reducing expression of tissue inhibitors of metalloproteinase-2 (TIMP-2), increasing expression of matrix metalloproteinase-2 (MMP-2), and suppressing renal proinflammatory cytokine expression and macrophage infiltration in the injured kidney. Furthermore, simultaneous administration of nintedanib and gefitinib was more potent in inhibiting UUO-induced renal phosphorylation of signal transducer and activator of transcription-3 (STAT3), nuclear factor-κB, and Smad-3 compared with monotherapy. In cultured renal interstitial fibroblasts, cotreatment with these 2 inhibitors also had synergistic effects in abrogating transforming growth factor β1-induced activation of renal fibroblasts and phosphorylation of Akt, STAT3, and Smad3. Conclusions Combined application of nintedanib and gefitinib has a synergistic antifibrotic effect in the kidney and may hold translational potential for the treatment of chronic kidney disease.
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Affiliation(s)
- Liu Feng
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wang Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yu Chao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qin Huan
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fang Lu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wang Yi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wang Jun
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Cui Binbin
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liu Na
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhuang Shougang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, USA
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24
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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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25
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Tavassoly O, Sato T, Tavassoly I. Inhibition of Brain Epidermal Growth Factor Receptor Activation: A Novel Target in Neurodegenerative Diseases and Brain Injuries. Mol Pharmacol 2020; 98:13-22. [DOI: 10.1124/mol.120.119909] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/10/2020] [Indexed: 12/20/2022] Open
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26
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Yang X, Yan H, Jiang N, Yu Z, Yuan J, Ni Z, Fang W. IL-6 trans-signaling drives a STAT3-dependent pathway that leads to structural alterations of the peritoneal membrane. Am J Physiol Renal Physiol 2019; 318:F338-F353. [PMID: 31841386 DOI: 10.1152/ajprenal.00319.2019] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
IL-6 is a vital inflammatory factor in the peritoneal cavity of patients undergoing peritoneal dialysis (PD). The present study examined the effect of IL-6 trans-signaling on structural alterations of the peritoneal membrane. We investigated whether the epithelial-to-mesenchymal transition (EMT) process of human peritoneal mesothelial cells (HPMCs) and the production of proangiogenic factors were controlled by IL-6 trans-signaling. Its role in the peritoneal alterations was detected in a mouse model. The morphology of HPMCs and levels of cytokines in PD effluent were also explored. Stimulation of HPMCs with the IL-6 and soluble IL-6 receptor complex (IL-6/S) promoted the EMT process of HPMCs depending on the STAT3 pathway. In a coculture system of HPMCs and human umbilical vein endothelial cells, IL-6/S mediated the production of VEGF and angiopoietins so as to downregulate the expression of endothelial junction molecules and finally affect vascular permeability. Daily intraperitoneal injection of high glucose-based dialysis fluid induced peritoneal fibrosis, angiogenesis, and macrophage infiltration in a mouse model, accompanied by phosphorylation of STAT3. Blockade of IL-6 trans-signaling prevented these peritoneum alterations. The fibroblast-like appearance of HPMCs ex vivo was upregulated in patients undergoing prevalent PD accompanied by increasing levels of IL-6, VEGF, and angiopoietin-2 in the PD effluent. Taken together, these findings identified a critical link between IL-6 trans-signaling and structural alterations of the peritoneal membrane, and it might be a potential target for the treatment of patients undergoing PD who have developed peritoneal alterations.
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Affiliation(s)
- Xiaoxiao Yang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Hao Yan
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Na Jiang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Zanzhe Yu
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Jiangzi Yuan
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
| | - Wei Fang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Center for Peritoneal Dialysis Research, Shanghai, China
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27
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Expression of XBP1s in peritoneal mesothelial cells is critical for inflammation-induced peritoneal fibrosis. Sci Rep 2019; 9:19043. [PMID: 31836774 PMCID: PMC6911080 DOI: 10.1038/s41598-019-55557-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/28/2019] [Indexed: 12/11/2022] Open
Abstract
Intraperitoneal inflammation is the most important determinant of peritoneal fibrosis in patients with long-term peritoneal dialysis (PD). Spliced x-box binding protein-1 (XBP1s), a major proximal effector of unfolded protein response (UPR) signaling, plays an indispensable role in inflammation. Our study demonstrated that the inflammatory factor interleukin-1β (IL-1β) dose- and time-dependently induced XBP1s upregulation and interleukin-6 (IL-6) secretion, as well as the expression of the fibrotic marker fibronectin. However, these effects were prevented by the IRE1 endonuclease inhibitor STF083010 since it time-dependently reduced IL-1β-induced Xbp1 mRNA splicing, XBP1s protein expression, inflammatory factor IL-6 secretion and the expression of the fibrotic marker fibronectin in human peritoneal mesothelial cells (HPMCs). The overexpression and knockdown of XBP1s in HPMCs had a similar effect on fibronectin expression. In a rat model of peritoneal inflammation, STF083010 significantly attenuated chlorhexidine digluconate-induced XBP1s and α-smooth muscle actin expression, as well as fibrotic tissue proliferation, in the peritoneum. Our results suggest that XBP1s is a strong pathogenic factor that mediates inflammation-induced peritoneal fibrosis in peritoneal dialysis.
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28
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Role of Growth Factors in the Adhesive Process in the Abdominal Cavity. ACTA BIOMEDICA SCIENTIFICA 2019. [DOI: 10.29413/abs.2019-4.5.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fibroproliferative diseases have been described in the lungs, kidneys, liver, eyes, heart, skin, and abdomen. Each fibrous pathology has causal factors and pathological manifestations characteristic of this organ and this condition. However, there are common mechanisms underlying many fibrous pathologies. This gives potential value to studies focused on specific processes, among which is the adhesive process in the abdominal cavity. The study of growth factors in the formation of connective tissue contributes to a better understanding of the pathogenetic picture in this pathology. It is shown that vascular endothelial growth factor, fibroblast growth factor, transforming growth factor, platelet growth factor, insulin-like growth factor and keratinocyte growth factor participate in the development of abdominal adhesions. Each of these factors contributes significantly to the formation of peritoneal fibrosis.Thus, damage to any tissue initiates a complex multistage process, which is regulated by a large number of cytokines and growth factors. Growth factors control cell migration, proliferation, differentiation, and survival. In addition, they are able to influence the expression of other factors involved in the regenerative response. Understanding the process that develops during the formation of the adhesive process in the abdominal cavity and the growth factors affecting it is important for their further use in order to prevent the pathological process.
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29
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Shi Y, Tao M, Wang Y, Zang X, Ma X, Qiu A, Zhuang S, Liu N. Genetic or pharmacologic blockade of enhancer of zeste homolog 2 inhibits the progression of peritoneal fibrosis. J Pathol 2019; 250:79-94. [PMID: 31579944 DOI: 10.1002/path.5352] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/01/2019] [Accepted: 09/24/2019] [Indexed: 02/06/2023]
Abstract
Dysregulation of histone methyltransferase enhancer of zeste homolog 2 (EZH2) has been implicated in the pathogenesis of many cancers. However, the role of EZH2 in peritoneal fibrosis remains unknown. We investigated EZH2 expression in peritoneal dialysis (PD) patients and assessed its role in peritoneal fibrosis in cultured human peritoneal mesothelial cells (HPMCs) and murine models of peritoneal fibrosis induced by chlorhexidine gluconate (CG) or high glucose peritoneal dialysis fluid (PDF) by using 3-deazaneplanocin A (3-DZNeP), and EZH2 conditional knockout mice. An abundance of EZH2 was detected in the peritoneum of patients with PD associated peritonitis and the dialysis effluent of long-term PD patients, which was positively correlated with expression of TGF-β1, vascular endothelial growth factor, and IL-6. EZH2 was found highly expressed in the peritoneum of mice following injury by CG or PDF. In both mouse models, treatment with 3-DZNeP attenuated peritoneal fibrosis and inhibited activation of several profibrotic signaling pathways, including TGF-β1/Smad3, Notch1, epidermal growth factor receptor and Src. EZH2 inhibition also inhibited STAT3 and nuclear factor-κB phosphorylation, and reduced lymphocyte and macrophage infiltration and angiogenesis in the injured peritoneum. 3-DZNeP effectively improved high glucose PDF-associated peritoneal dysfunction by decreasing the dialysate-to-plasma ratio of blood urea nitrogen and increasing the ratio of dialysate glucose at 2 h after PDF injection to initial dialysate glucose. Moreover, delayed administration of 3-DZNeP inhibited peritoneal fibrosis progression, reversed established peritoneal fibrosis and reduced expression of tissue inhibitor of metalloproteinase 2, and matrix metalloproteinase-2 and -9. Finally, EZH2-KO mice exhibited less peritoneal fibrosis than EZH2-WT mice. In HPMCs, treatment with EZH2 siRNA or 3-DZNeP suppressed TGF-β1-induced upregulation of α-SMA and Collagen I and preserved E-cadherin. These results indicate that EZH2 is a key epigenetic regulator that promotes peritoneal fibrosis. Targeting EZH2 may have the potential to prevent and treat peritoneal fibrosis. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Xiujuan Zang
- Department of Nephrology, Shanghai Songjiang District Central Hospital, Shanghai, PR China
| | - Xiaoyan Ma
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, PR China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China.,Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, USA
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, PR China
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30
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Xiong C, Liu N, Shao X, Sharif S, Zou H, Zhuang S. Delayed administration of suramin attenuates peritoneal fibrosis in rats. BMC Nephrol 2019; 20:411. [PMID: 31727005 PMCID: PMC6854809 DOI: 10.1186/s12882-019-1597-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 10/23/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Peritoneal fibrosis is the most common complication of peritoneal dialysis, but there is currently no effective treatment. We previously reported that suramin pretreatment prevents the development of peritoneal fibrosis in a rat model of peritoneal fibrosis induced by chlorhexidine gluconate (CG). Here, we further examined the effectiveness of delayed administration of suramin on peritoneal fibrosis and the mechanism (s) involved in this process. METHODS In the rat model of peritoneal fibrosis induced by CG, suramin or saline was administered at day 21 and 28. All rats were then sacrificed to collect peritoneal tissues for Western blot analysis and histological staining at day 35. RESULTS Our results demonstrated that delayed administration of suramin starting at 21 days following CG injection can ameliorate peritoneal damage, with greater efficacy after two injections. Suramin also reduced the expression of α-smooth muscle actin, Collagen 1, and Fibronectin and suppressed phosphorylation of Smad-3, epidermal growth factor receptor (EGFR), signal transducers, activator of transcription 3 (STAT3) as well as extracellular signal-regulated kinases 1/2 (ERK 1/2) in the peritoneum injured with CG. Moreover, delayed administration of suramin inhibited overproduction of transforming growth factor-β1(TGF-β1) and expression of several pro-inflammatory cytokines, including monocyte chemoattractant protein-1, tumor necrosis factor-α, interleukin-1, and interleukin-6. CONCLUSIONS Our results indicated that suramin can attenuate progression of peritoneal fibrosis by a mechanism involving inhibition of the TGF-β1/Smad3 and EGFR signaling pathways as well as suppression of multiple proinflammatory cytokines. Thus, suramin may have the potential to offer an effective treatment for peritoneal fibrosis.
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Affiliation(s)
- Chongxiang Xiong
- Department of Nephrology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Na Liu
- Deparment of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, China Shanghai, 200120, China
| | - Xiaofei Shao
- Department of Nephrology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Sairah Sharif
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, 02903, USA
| | - Hequn Zou
- Department of Nephrology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Shougang Zhuang
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, 02903, USA.,Deparment of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, China Shanghai, 200120, China
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31
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Wu J, Huang Q, Li P, Wang Y, Zheng C, Lei X, Li S, Gong W, Yin B, Luo C, Xiao J, Zhou W, Xu Z, Chen Y, Peng F, Long H. MicroRNA-145 promotes the epithelial-mesenchymal transition in peritoneal dialysis-associated fibrosis by suppressing fibroblast growth factor 10. J Biol Chem 2019; 294:15052-15067. [PMID: 31431501 PMCID: PMC6791318 DOI: 10.1074/jbc.ra119.007404] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 08/14/2019] [Indexed: 12/11/2022] Open
Abstract
Peritoneal fibrosis is a common complication of long-term peritoneal dialysis (PD) and the principal cause of ultrafiltration failure during PD. The initial and reversible step in PD-associated peritoneal fibrosis is the epithelial-mesenchymal transition (EMT). Although the mechanisms in the EMT have been the focus of many studies, only limited information is currently available concerning microRNA (miRNA) regulation in peritoneal fibrosis. In this study, we aimed to characterize the roles of microRNA-145 (miR-145) and fibroblast growth factor 10 (FGF10) in peritoneal fibrosis. After inducing EMT with transforming growth factor-β1 (TGF-β1) in vitro, we found that miR-145 is significantly up-regulated, whereas FGF10 is markedly down-regulated, suggesting a close link between miR-145 and FGF10 in peritoneal fibrosis, further confirmed in luciferase reporter experiments. Furthermore, in human peritoneal mesothelial cells (i.e. HMrSV5 cells), miR-145 mimics induced EMT, whereas miR-145 inhibition suppressed EMT, and we also observed that miR-145 suppressed FGF10 expression. In vivo, we found that the exogenous delivery of an miR-145 expression plasmid both blocked FGF10 and intensified the EMT, whereas miR-145 inhibition promoted the expression of FGF10 and reversed the EMT. In conclusion, miR-145 promotes the EMT during the development of peritoneal fibrosis by suppressing FGF10 activity, suggesting that miR-145 represents a potential therapeutic target for managing peritoneal fibrosis.
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Affiliation(s)
- Jiayu Wu
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Qianyin Huang
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Peilin Li
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yuxian Wang
- Department of Gerontology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Chenghao Zheng
- Second Clinical Medical School, Southern Medical University, Guangzhou 510280, China
| | - Xianghong Lei
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Shuting Li
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Wangqiu Gong
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Bohui Yin
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Congwei Luo
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jing Xiao
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Weidong Zhou
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Zhaozhong Xu
- Department of Emergency, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yihua Chen
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Fenfen Peng
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Haibo Long
- Department of Nephrology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Toda N, Mori K, Kasahara M, Koga K, Ishii A, Mori KP, Osaki K, Mukoyama M, Yanagita M, Yokoi H. Deletion of connective tissue growth factor ameliorates peritoneal fibrosis by inhibiting angiogenesis and inflammation. Nephrol Dial Transplant 2019; 33:943-953. [PMID: 29165602 DOI: 10.1093/ndt/gfx317] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 10/09/2017] [Indexed: 01/28/2023] Open
Abstract
Background Connective tissue growth factor (CTGF/CCN2) regulates the signalling of other growth factors and promotes fibrosis. CTGF is increased in mice and humans with peritoneal fibrosis. Inhibition of CTGF has not been examined as a potential therapeutic target for peritoneal fibrosis because systemic CTGF knockout mice die at the perinatal stage. Methods To study the role of CTGF in peritoneal fibrosis of adult mice, we generated CTGF conditional knockout (cKO) mice by crossing CTGF floxed mice with RosaCreERT2 mice. We administered tamoxifen to Rosa-CTGF cKO mice to delete the CTGF gene throughout the body. We induced peritoneal fibrosis by intraperitoneal injection of chlorhexidine gluconate (CG) in wild-type and Rosa-CTGF cKO mice. Results Induction of peritoneal fibrosis in wild-type mice increased CTGF expression and produced severe thickening of the peritoneum. In contrast, CG-treated Rosa-CTGF cKO mice exhibited reduced thickening of the peritoneum. Peritoneal equilibration test revealed that the excessive peritoneal small-solute transport in CG-treated wild-type mice was normalized by CTGF deletion. CG-treated Rosa-CTGF cKO mice exhibited a reduced number of αSMA-, Ki67-, CD31- and MAC-2-positive cells in the peritoneum. Analyses of peritoneal mRNA showed that CG-treated Rosa-CTGF cKO mice exhibited reduced expression of Cd68, Acta2 (αSMA), Pecam1 (CD31) and Vegfa. Conclusions These results indicate that a deficiency of CTGF can reduce peritoneal thickening and help to maintain peritoneal function by reducing angiogenesis and inflammation in peritoneal fibrosis. These results suggest that CTGF plays an important role in the progression of peritoneal fibrosis.
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Affiliation(s)
- Naohiro Toda
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kiyoshi Mori
- School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Department of Nephrology and Kidney Research, Shizuoka General Hospital, Shizuoka, Japan
| | - Masato Kasahara
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Japan
| | - Kenichi Koga
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akira Ishii
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keita P Mori
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keisuke Osaki
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masashi Mukoyama
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Nephrology, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Yokoi
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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33
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Zhu W, Zhang X, Gao K, Wang X. Effect of astragaloside IV and the role of nuclear receptor RXRα in human peritoneal mesothelial cells in high glucose‑based peritoneal dialysis fluids. Mol Med Rep 2019; 20:3829-3839. [PMID: 31485615 PMCID: PMC6755149 DOI: 10.3892/mmr.2019.10604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/25/2019] [Indexed: 12/03/2022] Open
Abstract
Peritoneal fibrosis is a serious complication that can occur during peritoneal dialysis (PD), which is primarily caused by damage to peritoneal mesothelial cells (PMCs). The onset of peritoneal fibrosis is delayed or inhibited by promoting PMC survival and inhibiting PMC epithelial-to-mesenchymal transition (EMT). In the present study, the effect of astragaloside IV and the role of the nuclear receptor retinoid X receptor-α (RXRα) in PMCs in high glucose-based PD fluids was investigated. Human PMC HMrSV5 cells were transfected with RXRα short hairpin RNA (shRNA), or an empty vector, and then treated with PD fluids and astragaloside IV. Cell viability, apoptosis and EMT were examined using the Cell Counting Kit-8 assay and flow cytometry, and by determining the levels of caspase-3, E-cadherin and α-smooth muscle actin (α-SMA) via western blot analysis. Cell viability and apoptosis were increased, as were the levels of E-cadherin in HMrSV5 cells following treatment with PD fluid. The protein levels of α-SMA and caspase-3 were increased by treatment with PD fluid. Exposure to astragaloside IV inhibited these changes; however, astragaloside IV did not change cell viability, apoptosis, E-cadherin or α-SMA levels in HMrSV5 cells under normal conditions. Transfection of HMrSV5 cells with RXRα shRNA resulted in decreased viability and E-cadherin expression, and increased apoptosis and α-SMA levels, in HMrSV5 cells treated with PD fluids and co-treated with astragaloside IV or vehicle. These results suggested that astragaloside IV increased cell viability, and inhibited apoptosis and EMT in PMCs in PD fluids, but did not affect these properties of PMCs under normal condition. Thus, the present study suggested that RXRα is involved in maintaining viability, inhibiting apoptosis and reducing EMT of PMCs in PD fluid.
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Affiliation(s)
- Weiwei Zhu
- Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Xin Zhang
- Department of Urology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Kun Gao
- Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Xufang Wang
- Department of Nephrology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
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Xu L, Sharkey D, Cantley LG. Tubular GM-CSF Promotes Late MCP-1/CCR2-Mediated Fibrosis and Inflammation after Ischemia/Reperfusion Injury. J Am Soc Nephrol 2019; 30:1825-1840. [PMID: 31315923 DOI: 10.1681/asn.2019010068] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 05/22/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND After bilateral kidney ischemia/reperfusion injury (IRI), monocytes infiltrate the kidney and differentiate into proinflammatory macrophages in response to the initial kidney damage, and then transition to a form that promotes kidney repair. In the setting of unilateral IRI (U-IRI), however, we have previously shown that macrophages persist beyond the time of repair and may promote fibrosis. METHODS Macrophage homing/survival signals were determined at 14 days after injury in mice subjected to U-IRI and in vitro using coculture of macrophages and tubular cells. Mice genetically engineered to lack Ccr2 and wild-type mice were treated ±CCR2 antagonist RS102895 and subjected to U-IRI to quantify macrophage accumulation, kidney fibrosis, and inflammation 14 and 30 days after the injury. RESULTS Failure to resolve tubular injury after U-IRI results in sustained expression of granulocyte-macrophage colony-stimulating factor by renal tubular cells, which directly stimulates expression of monocyte chemoattractant protein-1 (Mcp-1) by macrophages. Analysis of CD45+ immune cells isolated from wild-type kidneys 14 days after U-IRI reveals high-level expression of the MCP-1 receptor Ccr2. In mice lacking Ccr2 and wild-type mice treated with RS102895, the numbers of macrophages, dendritic cells, and T cell decreased following U-IRI, as did the expression of profibrotic growth factors and proimflammatory cytokines. This results in a reduction in extracellular matrix and kidney injury markers. CONCLUSIONS GM-CSF-induced MCP-1/CCR2 signaling plays an important role in the cross-talk between injured tubular cells and infiltrating immune cells and myofibroblasts, and promotes sustained inflammation and tubular injury with progressive interstitial fibrosis in the late stages of U-IRI.
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Affiliation(s)
- Leyuan Xu
- Section of Nephrology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut; and
| | - Diana Sharkey
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, Connecticut
| | - Lloyd G Cantley
- Section of Nephrology, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut; and
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Shao Q, Jiang C, Xia Y, Zhao M, Zhang Q, Jin B, Liu J. Dioscin ameliorates peritoneal fibrosis by inhibiting epithelial-to-mesenchymal transition of human peritoneal mesothelial cells via the TLR4/MyD88/NF-κB signaling pathway. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:867-875. [PMID: 31933895 PMCID: PMC6945188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 01/09/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To investigate the effect of dioscin on lipopolysaccharide (LPS)-induced peritoneal fibrosis and its underlying mechanism. METHODS The human peritoneal mesothelial cell line (HMrSV5) was treated with LPS, followed by treatment with different concentrations of dioscin (0.25, 0.5 or 1.0 μg/ml). Toll-like receptor (TLR) 4 gene transfection was performed and dioscin (0.5 μg/ml) was used in mechanism research. Then morphological observation was carried out, and LPS-related markers of epithelial mesenchymal transition (EMT) as well as fibrosis markers were detected by western blotting. qRT-PCR and ELISA assay were applied to measure inflammatory factors. Furthermore, TLR4/MyD88/NF-κB pathway related proteins were assessed. RESULTS Dioscin inhibited LPS-induced morphologic changes, significantly reduced the levels of markers of EMT including N-cadherin, matrix metalloproteinase-2 (MMP-2), MMP-9 and vimentin, and elevated the levels of E-cadherin and zonula occludens protein 1 (ZO-1). Decreased levels of fibrosis markers α-smooth muscle actin (α-SMA), collagen I and fibronectin were found in dioscin groups. Additionally, dioscin downregulated interleukin-6 (IL-6), IL-1β and tumor necrosis factor alpha (TNF-α). Dioscin inhibited EMT and fibrosis through triggering the TLR4/MyD88/NF-κB signaling pathway by decreasing expressions of TLR4, myeloid differentiation factor 88 (MyD88), nuclear factor κB (NF-κB), transforming growth factor-β1 (TGF-β1), phosphorylated Smad2 (p-Smad2), α-SMA, collagen I and fibronectin. CONCLUSION This study provides a novel and efficient remedy to alleviate PD-associated fibrosis for patients undergoing long-term peritoneal dialysis.
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Affiliation(s)
- Qiuyuan Shao
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Chunming Jiang
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Yangyang Xia
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Min Zhao
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Qingyan Zhang
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Bo Jin
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
| | - Jin Liu
- Department of Nephrology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing 210008, Jiangsu Province, China
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Li L, Shen N, Wang N, Wang W, Tang Q, Du X, Carrero JJ, Wang K, Deng Y, Li Z, Lin H, Wu T. Inhibiting core fucosylation attenuates glucose-induced peritoneal fibrosis in rats. Kidney Int 2018; 93:1384-1396. [DOI: 10.1016/j.kint.2017.12.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 11/25/2017] [Accepted: 12/21/2017] [Indexed: 12/22/2022]
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Chen L, Yang T, Lu DW, Zhao H, Feng YL, Chen H, Chen DQ, Vaziri ND, Zhao YY. Central role of dysregulation of TGF-β/Smad in CKD progression and potential targets of its treatment. Biomed Pharmacother 2018. [DOI: 10.1016/j.biopha.2018.02.090] [Citation(s) in RCA: 238] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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38
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Song J, Zhang H, Wang Z, Xu W, Zhong L, Cao J, Yang J, Tian Y, Yu D, Ji J, Cao J, Zhang S. The Role of FABP5 in Radiation-Induced Human Skin Fibrosis. Radiat Res 2017; 189:177-186. [PMID: 29215326 DOI: 10.1667/rr14901.1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Radiation-induced skin fibrosis is a detrimental and chronic disorder that occurs after radiation exposure. The molecular changes underlying the pathogenesis of radiation-induced fibrosis of human skin have not been extensively reported. Technical advances in proteomics have enabled exploration of the biomarkers and molecular pathogenesis of radiation-induced skin fibrosis, with the potential to broaden our understanding of this disease. In this study, we compared protein expression in radiation-induced fibrotic human skin and adjacent normal tissues using iTRAQ-based proteomics technology. We identified 186 preferentially expressed proteins (53 upregulated and 133 downregulated) between radiogenic fibrotic and normal skin tissues. The differentially expressed proteins included keratins (KRT5, KRT6A, KRT16 and KRT17), caspase-14, fatty acid-binding protein 5 (FABP5), SLC2A14 and resistin. Through bioinformatic analysis of the proximal promoters, common motifs and corresponding transcriptional factors were identified that associate with the dysregulated proteins, including PAX5, TBX1, CLOCK and AP2D. In particular, FABP5 (2.15-fold increase in fibrotic skin tissues), a transporter of hydrophobic fatty acids, was investigated in greater detail. Immunohistochemistry confirmed that the protein level of FABP5 was increased in fibrotic human skin tissues, especially in the epidermis. Overexpression of FABP5 resulted in nuclear translocation of SMAD2 and significant activation of the profibrotic TGF-β signaling pathway in human fibroblast WS1 cells. Moreover, exogenous FABP5 (FABP5-EGFP) could be incorporated by skin cells and intensify TGF-β signaling, indicating a communication between the microenvironment and skin fibrosis. Taken together, our findings illustrate the molecular changes during radiation-induced human skin fibrosis and the critical role of FABP5 in activating the TGF-β signaling pathway.
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Affiliation(s)
- Jianyuan Song
- a Fujian Medical University Union Hospital, Fuzhou 350001, China.,b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Huojun Zhang
- c Department of Radiation Oncology, Shanghai Changhai Hospital, the Second Military Medical University, Shanghai 200433, China
| | - Zhenyu Wang
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Wanglei Xu
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Li Zhong
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jinming Cao
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jianfeng Yang
- d Cyrus Tang Hematology Center, Soochow University, Suzhou 215123, China; and
| | - Ye Tian
- e The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Daojiang Yu
- e The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Jiang Ji
- e The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
| | - Jianping Cao
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Shuyu Zhang
- b School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
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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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Targeting Src attenuates peritoneal fibrosis and inhibits the epithelial to mesenchymal transition. Oncotarget 2017; 8:83872-83889. [PMID: 29137389 PMCID: PMC5663561 DOI: 10.18632/oncotarget.20040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/25/2017] [Indexed: 11/25/2022] Open
Abstract
Src has been reported to mediate tissue fibrosis in several organs, but its role in peritoneal fibrosis remains unknown. In this study, we evaluated the therapeutic effect of KX2-391, a highly selective inhibitor of Src, on the development of peritoneal fibrosis in a rat model. Daily intraperitoneal injections of chlorhexidine gluconate induced peritoneal fibrosis, as indicated by thickening of the submesothelial area with an accumulation of collagen fibrils and activation of myofibroblasts. This was accompanied by time-dependent phosphorylation of Src at tyrosine 416. Administration of KX2-391 attenuated peritoneal fibrosis and abrogated increased phosphorylation of Src and multiple signaling molecules associated with tissue fibrosis, including epidermal growth factor receptor, Akt, Signal transducer and activator of transcription 3 and nuclear factor-κB in the injured peritoneum. KX2-391 also inhibited the production of proinflammatory cytokines and the infiltration of macrophages into the injured peritoneum. In cultured human peritoneal mesothelial cells, inhibition of Src by KX2-391 or siRNA resulted in decreased expression of α-smooth muscle actin (α-SMA), fibronectin and collagen I, the hallmarks of epithelial to mesenchymal transition. These results suggest that Src is a critical mediator of peritoneal fibrosis and the epithelial to mesenchymal transition. Thus, Src could be a potential therapeutic target in the treatment of peritoneal fibrosis.
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Li Z, Yan H, Yuan J, Cao L, Lin A, Dai H, Ni Z, Qian J, Fang W. Pharmacological inhibition of heparin-binding EGF-like growth factor promotes peritoneal angiogenesis in a peritoneal dialysis rat model. Clin Exp Nephrol 2017; 22:257-265. [PMID: 28710535 DOI: 10.1007/s10157-017-1440-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/02/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Molecular mechanisms of peritoneal dialysis (PD) ultrafiltration failure, peritoneal neo-angiogenesis, and fibrosis remain to be determined. We aimed to determine the role of heparin-binding EGF-like growth factor (HB-EGF) inhibition on angiogenesis of peritoneal membrane in a PD rat model. METHODS 32 male Wistar rats were assigned into (1) control group; (2) uremic non-PD group: subtotal nephrectomy-induced uremic rats without PD; (3) uremic rats subjected to PD: uremic rats that were dialyzed with Dianeal® for 4 weeks; (4) CRM 197 group: dialyzed uremic rats were supplemented with CRM197, a specific HB-EGF inhibitor. Peritoneal transport function was examined by peritoneal equilibration test. Expression of HB-EGF and EGFR in peritoneal samples were examined by real-time PCR, immunohistochemical staining, and western blot. RESULTS Progressive angiogenesis and fibrosis were observed in uremic PD rats, and there were associated with decreased net ultrafiltration (nUF), increased permeability of peritoneal membrane, and reduced expression of HB-EGF and EGFR protein and mRNA in uremic PD rats compared to uremic non-PD or control groups (both p < 0.05). CRM197 significantly induced peritoneal membrane permeability, decreased nUF, increased higher vessel density, and reduced pericyte count compared to that of uremic PD rats. The levels of HB-EGF and EGFR expression negatively correlated with vessel density in peritoneal membrane (both p < 0.001). CONCLUSION PD therapy was associated with peritoneal angiogenesis, functional deterioration, and downregulation of HB-EGF/EGFR. Pharmacological inhibition of HB-EGF promoted PD-induced peritoneal angiogenesis and fibrosis and ultrafiltration decline, suggesting that HB-EGF downregulation contributes to peritoneal functional deterioration in the uremic PD rat model.
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Affiliation(s)
- Zhenyuan Li
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Hao Yan
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Jiangzi Yuan
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Liou Cao
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Aiwu Lin
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Huili Dai
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Zhaohui Ni
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Jiaqi Qian
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China
| | - Wei Fang
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dong Fang Road, Shanghai, 200127, People's Republic of China.
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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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Yamanaka Y, Gingery A, Oki G, Yang TH, Zhao C, Amadio PC. Blocking fibrotic signaling in fibroblasts from patients with carpal tunnel syndrome. J Cell Physiol 2017; 233:2067-2074. [PMID: 28294324 DOI: 10.1002/jcp.25901] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/08/2017] [Accepted: 03/08/2017] [Indexed: 12/21/2022]
Abstract
Fibrosis of the subsynovial connective tissue (SSCT) in carpal tunnel syndrome (CTS) patients is increasingly recognized as an important aspect of CTS pathophysiology. In this study, we evaluated the effect of blocking profibrotic pathways in fibroblasts from the SSCT in CTS patients. Fibroblasts were stimulated with transforming growth factor β1 (TGF-β1), and then treated either with a specific fibrosis pathway inhibitor targeting TGF-β receptor type 1 (TβRI), platelet-derived growth factor receptor (PDGFR), epidermal growth factor receptor (EGFR), or vascular endothelial growth factor receptor (VEGFR). Fibrosis array and quantitative real-time polymerase chain reaction of fibrotic genes were evaluated. Array gene expression analysis revealed significant down-regulation of multiple fibrotic genes after treatment with TβRI, PDGFR, and VEGFR inhibitors. No array fibrotic genes were significantly down-regulated with EGFR inhibition. Further gene expression analysis of known CTS fibrosis markers collagen type I A2 (Col1), collagen type III A1 (Col3), connective tissue growth factor (CTGF), and SERPINE1 showed significantly down-regulation after TβRI inhibition. In contrast, VEGFR inhibition significantly down-regulated CTGF and SERPINE1, whereas, PDGFR and EGFR inhibition significantly down-regulated Col3. Taken together the inhibition of TβRI appears to be the primary mediator of fibrotic gene expression in fibroblasts from CTS patients. TGF-β/Smad activity was further evaluated, and as expected inhibition of Smad activity was significantly down-regulated after inhibition of TβRI, but not with PDGFR, VEGFR, or EGFR inhibition. These results indicate that local therapies specifically targeting TGF-β signaling alone or in combination offer the potential of a novel local antifibrosis therapy for patients with CTS.
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Affiliation(s)
- Yoshiaki Yamanaka
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Anne Gingery
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Gosuke Oki
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Tai-Hua Yang
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Chunfeng Zhao
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Peter C Amadio
- Biomechanics and Tendon & Soft Tissue Biology Laboratory, Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
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Honjo K, Munakata S, Tashiro Y, Salama Y, Shimazu H, Eiamboonsert S, Dhahri D, Ichimura A, Dan T, Miyata T, Takeda K, Sakamoto K, Hattori K, Heissig B. Plasminogen activator inhibitor‐1 regulates macrophage‐dependent postoperative adhesion by enhancing EGF‐HER1 signaling in mice. FASEB J 2017; 31:2625-2637. [DOI: 10.1096/fj.201600871rr] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 02/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Kumpei Honjo
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Shinya Munakata
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Yoshihiko Tashiro
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Coloproctological Surgery Tokyo Japan
| | - Yousef Salama
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Hiroshi Shimazu
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Salita Eiamboonsert
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Douaa Dhahri
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
| | - Atsuhiko Ichimura
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Takashi Dan
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Toshio Miyata
- United Centers for Advanced Research and Translational MedicineGraduate School of Medicine, Tohoku University Sendai Japan
| | - Kazuyoshi Takeda
- Department of Immunology and Atopy CenterGraduate School of Medicine, Juntendo University Tokyo Japan
| | | | - Koichi Hattori
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Center for Genomic and Regenerative MedicineFaculty of Medicine Tokyo Japan
| | - Beate Heissig
- Division of Stem Cell Dynamics Center for Stem Cell Biology and Regenerative MedicineThe Institute of Medical Science The University of Tokyo Tokyo Japan
- Department of Immunology and Atopy CenterGraduate School of Medicine, Juntendo University Tokyo Japan
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Molecular Mechanisms Underlying Peritoneal EMT and Fibrosis. Stem Cells Int 2016; 2016:3543678. [PMID: 26941801 PMCID: PMC4752998 DOI: 10.1155/2016/3543678] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/10/2016] [Indexed: 12/26/2022] Open
Abstract
Peritoneal dialysis is a form of renal replacement alternative to the hemodialysis. During this treatment, the peritoneal membrane acts as a permeable barrier for exchange of solutes and water. Continual exposure to dialysis solutions, as well as episodes of peritonitis and hemoperitoneum, can cause acute/chronic inflammation and injury to the peritoneal membrane, which undergoes progressive fibrosis, angiogenesis, and vasculopathy, eventually leading to discontinuation of the peritoneal dialysis. Among the different events controlling this pathological process, epithelial to mesenchymal transition of mesothelial cells plays a main role in the induction of fibrosis and in subsequent functional deterioration of the peritoneal membrane. Here, the main extracellular inducers and cellular players are described. Moreover, signaling pathways acting during this process are elucidated, with emphasis on signals delivered by TGF-β family members and by Toll-like/IL-1β receptors. The understanding of 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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