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Zhao JL, Zhao L, Zhan QN, Liu M, Zhang T, Chu WW. BMSC-derived Exosomes Ameliorate Peritoneal Dialysis-associated Peritoneal Fibrosis via the Mir-27a-3p/TP53 Pathway. Curr Med Sci 2024; 44:333-345. [PMID: 38622424 DOI: 10.1007/s11596-024-2853-7] [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: 07/09/2023] [Accepted: 02/19/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVE Peritoneal fibrosis (PF) is the main cause of declining efficiency and ultrafiltration failure of the peritoneum, which restricts the long-term application of peritoneal dialysis (PD). This study aimed to investigate the therapeutic effects and mechanisms of bone marrow mesenchymal stem cells-derived exosomes (BMSC-Exos) on PF in response to PD. METHODS Small RNA sequencing analysis of BMSC-Exos was performed by second-generation sequencing. C57BL/6J mice were infused with 4.25% glucose-based peritoneal dialysis fluid (PDF) for 6 consecutive weeks to establish a PF model. A total of 36 mice were randomly divided into 6 groups: control group, 1.5% PDF group, 2.5% PDF group, 4.25% PDF group, BMSC-Exos treatment group, and BMSC-Exos+TP53 treatment group. Reverse transcription quantitative polymerase chain reaction (RT-qPCR) was performed to measure the expression level of miR-27a-3p in BMSC-Exos and peritoneum of mice treated with different concentrations of PDF. HE and Masson staining were performed to evaluate the extent of PF. The therapeutic potential of BMSC-Exos for PF was examined through pathological examination, RT-qPCR, Western blotting, and peritoneal function analyses. Epithelial-mesenchymal transition (EMT) of HMrSV5 was induced with 4.25% PDF. Cells were divided into control group, 4.25% PDF group, BMSC-Exos treatment group, and BMSC-Exos+TP53 treatment group. Cell Counting Kit-8 assay was used to measure cell viability, and transwell migration assay was used to verify the capacity of BMSC-Exos to inhibit EMT in HMrSV5 cells. RESULTS Small RNA sequencing analysis showed that miR-27a-3p was highly expressed in BMSC-derived exosomes compared to BMSCs. The RT-qPCR results showed that the expression of miR-27a-3p was upregulated in BMSC-Exos, but decreased in PD mice. We found that PF was glucose concentration-dependently enhanced in the peritoneum of the PD mice. Compared with the control mice, the PD mice showed high solute transport and decreased ultrafiltration volume as well as an obvious fibroproliferative response, with markedly increased peritoneal thickness and higher expression of α-SMA, collagen-I, fibronectin, and ECM1. The mice with PD showed decreased miR-27a-3p. Peritoneal structural and functional damage was significantly attenuated after BMSC-Exos treatment, while PF and mesothelial damage were significantly ameliorated. Additionally, markers of fibrosis (α-SMA, collagen-I, fibronectin, ECM1) and profibrotic cytokines (TGF-β1, PDGF) were downregulated at the mRNA and protein levels after BMSC-Exos treatment. In HMrSV5 cells, BMSC-Exos reversed the decrease in cell viability and the increase in cell migratory capacity caused by high-glucose PDF. Western blotting and RT-qPCR analysis revealed that BMSC-Exos treatment resulted in increased expression of E-cadherin (epithelial marker) and decreased expression of α-SMA, Snail, and vimentin (mesenchymal markers) compared to those of the 4.25% PDF-treated cells. Importantly, a dual-luciferase reporter assay showed that TP53 was a target gene of miR-27a-3p. TP53 overexpression significantly reversed the decreases in PF and EMT progression induced by BMSC-Exos. CONCLUSION The present results demonstrate that BMSC-Exos showed an obvious protective effect on PD-related PF and suggest that BMSC-derived exosomal miR-27a-3p may exert its inhibitory effect on PF and EMT progression by targeting TP53.
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Affiliation(s)
- Jun-Li Zhao
- Department of Nephrology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China.
| | - Lin Zhao
- Orthopedic Department, Guangming Traditional Chinese Medicine Hospital of Pudong New Area, Shanghai, 201399, China
| | - Qiu-Nan Zhan
- Department of Nephrology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China
| | - Miao Liu
- Department of Nephrology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China
| | - Ting Zhang
- Department of Nephrology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China
| | - Wen-Wen Chu
- Department of Nephrology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai, 201318, China
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Jiao T, Huang Y, Sun H, Yang L. Exosomal lnc-CDHR derived from human umbilical cord mesenchymal stem cells attenuates peritoneal epithelial-mesenchymal transition through AKT/FOXO pathway. Aging (Albany NY) 2023; 15:6921-6932. [PMID: 37466443 PMCID: PMC10415546 DOI: 10.18632/aging.v15i14 10.18632/aging.204883] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/23/2023] [Indexed: 10/12/2023]
Abstract
OBJECTIVE Chronic stimulation of peritoneal dialysis (PD) fluid leads to the epithelial-mesenchymal transformation (EMT) of mesothelial cells, peritoneal fibrosis (PF), and ultimately ultrafiltration failure. Some studies have proposed that mesenchymal stem cells (MSCs) can alleviate PF. This study aimed to investigate whether the exosomes from human umbilical cord MSCs (hUMSCs) could alleviate peritoneal EMT. METHODS Human peritoneal mesothelial cell line (HMrSV5) were treated with high glucose (HG) for 48 hours to induce the peritoneal EMT model. An inverted fluorescence microscope was used to observe the internalization of exosomes derived from hUMSCs (hUMSC-Exos). Western blot and real-time PCR were used to evaluate the expression of α-SMA, Vimentin, E-cadherin, PTEN, and AKT/FOXO3a. The relationships of lncRNA CDHR and miR-3149, miR-3149 and PTEN were detected by dual luciferase reporter gene assay. RESULTS Compared with HG-induced HMrSV5, E-cadherin and PTEN levels significantly increased whereas α-SMA and Vimentin levels significantly decreased after treatment of hUMSC-CM and hUMSC-Exos (P < 0.05). An inverted fluorescence microscope showed HMrSV5 can absorb exosomes to alleviate EMT. Furthermore, exosomes extracted from lnc-CDHR siRNA-transfected hUMSCs can't ameliorate HMrSV5 EMT. Moreover, both CDHR overexpressed and miR-3149 inhibitor in HG-induced HMrSV5 alleviated the expression of α-SMA, and Vimentin, and increased the expression of E-cadherin and PTEN, and AKT/FOXO3a. A rescue experiment showed that CDHR overexpressed expression was repressed by miR-3149 in the HG-induced peritoneal EMT model. CONCLUSIONS Exosomal lnc-CDHR derived from hUMSCs may competitively bind to miR-3149 to regulate suppression on target PTEN genes and alleviate EMT of HMrSV5 through AKT/FOXO pathway.
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Affiliation(s)
- Taiwei Jiao
- Department of Gastroenterology and Endoscopy, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Yuling Huang
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Haiyan Sun
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Lina Yang
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
- Department of International Physical Examination Center, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
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Jiao T, Huang Y, Sun H, Yang L. Exosomal lnc-CDHR derived from human umbilical cord mesenchymal stem cells attenuates peritoneal epithelial-mesenchymal transition through AKT/FOXO pathway. Aging (Albany NY) 2023; 15:6921-6932. [PMID: 37466443 PMCID: PMC10415546 DOI: 10.18632/aging.204883] [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: 04/06/2023] [Accepted: 06/23/2023] [Indexed: 07/20/2023]
Abstract
OBJECTIVE Chronic stimulation of peritoneal dialysis (PD) fluid leads to the epithelial-mesenchymal transformation (EMT) of mesothelial cells, peritoneal fibrosis (PF), and ultimately ultrafiltration failure. Some studies have proposed that mesenchymal stem cells (MSCs) can alleviate PF. This study aimed to investigate whether the exosomes from human umbilical cord MSCs (hUMSCs) could alleviate peritoneal EMT. METHODS Human peritoneal mesothelial cell line (HMrSV5) were treated with high glucose (HG) for 48 hours to induce the peritoneal EMT model. An inverted fluorescence microscope was used to observe the internalization of exosomes derived from hUMSCs (hUMSC-Exos). Western blot and real-time PCR were used to evaluate the expression of α-SMA, Vimentin, E-cadherin, PTEN, and AKT/FOXO3a. The relationships of lncRNA CDHR and miR-3149, miR-3149 and PTEN were detected by dual luciferase reporter gene assay. RESULTS Compared with HG-induced HMrSV5, E-cadherin and PTEN levels significantly increased whereas α-SMA and Vimentin levels significantly decreased after treatment of hUMSC-CM and hUMSC-Exos (P < 0.05). An inverted fluorescence microscope showed HMrSV5 can absorb exosomes to alleviate EMT. Furthermore, exosomes extracted from lnc-CDHR siRNA-transfected hUMSCs can't ameliorate HMrSV5 EMT. Moreover, both CDHR overexpressed and miR-3149 inhibitor in HG-induced HMrSV5 alleviated the expression of α-SMA, and Vimentin, and increased the expression of E-cadherin and PTEN, and AKT/FOXO3a. A rescue experiment showed that CDHR overexpressed expression was repressed by miR-3149 in the HG-induced peritoneal EMT model. CONCLUSIONS Exosomal lnc-CDHR derived from hUMSCs may competitively bind to miR-3149 to regulate suppression on target PTEN genes and alleviate EMT of HMrSV5 through AKT/FOXO pathway.
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Affiliation(s)
- Taiwei Jiao
- Department of Gastroenterology and Endoscopy, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Yuling Huang
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Haiyan Sun
- Department of Endodontics, School of Stomatology, China Medical University, Shenyang 110001, Liaoning, P.R. China
| | - Lina Yang
- Department of Geriatrics, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
- Department of International Physical Examination Center, The First Hospital of China Medical University, Shenyang 110001, Liaoning, P.R. China
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Sun J, Tang L, Shan Y, Yu M, Sheng L, Huang L, Cao H, Dai H, Wang F, Zhao J, Sheng M. TMT quantitative proteomics and network pharmacology reveal the mechanism by which asiaticoside regulates the JAK2/STAT3 signaling pathway to inhibit peritoneal fibrosis. JOURNAL OF ETHNOPHARMACOLOGY 2023; 309:116343. [PMID: 36906159 DOI: 10.1016/j.jep.2023.116343] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/24/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Traditional Chinese medicine, Centella asiatica (L.) Urb., has been extensively utilized in clinics to treat a variety of fibrotic disorders. Asiaticoside (ASI), as an important active ingredient, has attracted much attention in this field. However, the effect of ASI on peritoneal fibrosis (PF) is still unclear. Therefore, we evaluated the benefits of ASI for PF and mesothelial-mesenchymal transition (MMT) and revealed the underlying mechanisms. AIM OF STUDY The objective of this investigation was to anticipate the potential molecular mechanism of ASI against peritoneal mesothelial cells (PMCs) MMT employing proteomics and network pharmacology, and to confirm it using in vivo and in vitro studies. MATERIALS AND METHODS The mesentery of peritoneal fibrosis mice and normal mice were analyzed quantitatively for proteins that were differentially expressed using a technique tandem mass tag (TMT). Next, the core target genes of ASI against PF were screened through network pharmacology analysis, and PPI and C-P‒T networks were constructed by Cytoscape Version 3.7.2. According to the findings of a GO and KEGG enrichment analysis of differential proteins and core target genes, the signaling pathway with a high correlation degree was selected as the key signaling pathway of ASI inhibiting the PMCs MMT for further molecular docking analysis and experimental verification. RESULTS TMT-based quantitative proteome analysis revealed the identification of 5727 proteins, of which 70 were downregulated and 178 were upregulated. Among them, the levels of STAT1, STAT2, and STAT3 in the mesentery of mice with peritoneal fibrosis were considerably lower than in the control group, indicating a role for the STAT family in the pathogenesis of peritoneal fibrosis. Then, a total of 98 ASI-PF-related targets were identified by network pharmacology analysis. JAK2 is one of the top 10 core target genes representing a potential therapeutic target. JAK/STAT signaling may represent a core pathway mediating PF effects by ASI. Molecular docking studies showed that ASI had the potential to interact favorably with target genes involved in the JAK/STAT signaling pathway, such as JAK2 and STAT3. The experimental results showed that ASI could significantly alleviate Chlorhexidine Gluconate (CG)-induced peritoneal histopathological changes and increase JAK2 and STAT3 phosphorylation levels. In TGF-β1-stimulated HMrSV5 cells, E-cadherin expression levels were dramatically reduced whereas Vimentin, p-JAK2, α-SMA, and p-STAT3 expression levels were considerably increased. ASI inhibited the TGF-β1-induced HMrSV5 cell MMT, decreased the activation of JAK2/STAT3 signaling, and increased the nuclear translocation of p-STAT3, which was consistent with the effect of the JAK2/STAT3 pathway inhibitor AG490. CONCLUSION ASI can inhibit PMCs MMT and alleviate PF by regulating the JAK2/STAT3 signaling pathway.
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Affiliation(s)
- Jinyi Sun
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lei Tang
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yun Shan
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Manshu Yu
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Li Sheng
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Liyan Huang
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huimin Cao
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huibo Dai
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Funing Wang
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Juan Zhao
- Key Laboratory for Metabolic Diseases in Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Meixiao Sheng
- Renal Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China.
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Trionfetti F, Marchant V, González-Mateo GT, Kawka E, Márquez-Expósito L, Ortiz A, López-Cabrera M, Ruiz-Ortega M, Strippoli R. Novel Aspects of the Immune Response Involved in the Peritoneal Damage in Chronic Kidney Disease Patients under Dialysis. Int J Mol Sci 2023; 24:5763. [PMID: 36982834 PMCID: PMC10059714 DOI: 10.3390/ijms24065763] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 03/30/2023] Open
Abstract
Chronic kidney disease (CKD) incidence is growing worldwide, with a significant percentage of CKD patients reaching end-stage renal disease (ESRD) and requiring kidney replacement therapies (KRT). Peritoneal dialysis (PD) is a convenient KRT presenting benefices as home therapy. In PD patients, the peritoneum is chronically exposed to PD fluids containing supraphysiologic concentrations of glucose or other osmotic agents, leading to the activation of cellular and molecular processes of damage, including inflammation and fibrosis. Importantly, peritonitis episodes enhance peritoneum inflammation status and accelerate peritoneal injury. Here, we review the role of immune cells in the damage of the peritoneal membrane (PM) by repeated exposure to PD fluids during KRT as well as by bacterial or viral infections. We also discuss the anti-inflammatory properties of current clinical treatments of CKD patients in KRT and their potential effect on preserving PM integrity. Finally, given the current importance of coronavirus disease 2019 (COVID-19) disease, we also analyze here the implications of this disease in CKD and KRT.
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Affiliation(s)
- Flavia Trionfetti
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L., Spallanzani, IRCCS, Via Portuense, 292, 00149 Rome, Italy
| | - Vanessa Marchant
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- REDINREN/RICORS2040, 28029 Madrid, Spain
| | - Guadalupe T. González-Mateo
- Cell-Cell Communication & Inflammation Unit, Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain
- Premium Research, S.L., 19005 Guadalajara, Spain
| | - Edyta Kawka
- Department of Pathophysiology, Poznan University of Medical Sciences, 10 Fredry St., 61-701 Poznan, Poland
| | - Laura Márquez-Expósito
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- REDINREN/RICORS2040, 28029 Madrid, Spain
| | - Alberto Ortiz
- IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
| | - Manuel López-Cabrera
- Cell-Cell Communication & Inflammation Unit, Centre for Molecular Biology “Severo Ochoa” (CSIC-UAM), 28049 Madrid, Spain
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, 28040 Madrid, Spain
- REDINREN/RICORS2040, 28029 Madrid, Spain
| | - Raffaele Strippoli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
- Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L., Spallanzani, IRCCS, Via Portuense, 292, 00149 Rome, Italy
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Wu J, Li J, Feng B, Bi Z, Zhu G, Zhang Y, Li X. Activation of AMPK-PGC-1α pathway ameliorates peritoneal dialysis related peritoneal fibrosis in mice by enhancing mitochondrial biogenesis. Ren Fail 2022; 44:1545-1557. [PMID: 36148521 PMCID: PMC9518249 DOI: 10.1080/0886022x.2022.2126789] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND The pathogenesis of peritoneal dialysis (PD)-related peritoneal fibrosis (PF) is not clearly understood, and current treatment options are limited. METHODS In this study, the effect of PD-related PF on mitochondrial biogenesis was investigated, and the effect of activation of the adenosine monophosphate-activated protein kinase (AMPK)-PGC-1α (peroxisome proliferator-activated receptor γ coactivator-1α) pathway on PF was evaluated in mice. RESULTS In a mouse model of PD-related PF, AMPK-PGC-1α signaling (phospho-AMPK, PGC-1α, NRF-1, NRF-2 and TFAM expression) was downregulated, mitochondrial DNA (mtDNA) levels were reduced, and mitochondrial structure was damaged in the peritoneum. In addition, TdT-mediated dUTP nick-end labeling (TUNEL) staining showed typical apoptosis characteristics in peritoneal mesothelial cells (PMCs). Activation of the AMPK-PGC-1α pathway (PGC-1α overexpression or metformin, which is an agonist of AMPK) upregulated phospho-AMPK, PGC-1α, nuclear respiratory factors 1 (NRF-1) and 2 (NRF-2), and mitochondrial transcription factor A (TFAM) expression and mtDNA content, improved mitochondrial morphological manifestations, inhibited apoptosis of PMCs and alleviated PF. CONCLUSION Our study may suggest that activation of the AMPK-PGC-1α pathway ameliorates PD-related PF by enhancing mitochondrial biogenesis.
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Affiliation(s)
- Jun Wu
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Jushuang Li
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Baohong Feng
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Zhimin Bi
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Geli Zhu
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Yanxia Zhang
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
| | - Xiangyou Li
- Department of Nephrology, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan University, Wuhan, P.R. China
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Bontempi G, Terri M, Garbo S, Montaldo C, Mariotti D, Bordoni V, Valente S, Zwergel C, Mai A, Marchetti A, Domenici A, Menè P, Battistelli C, Tripodi M, Strippoli R. Restoration of WT1/miR-769-5p axis by HDAC1 inhibition promotes MMT reversal in mesenchymal-like mesothelial cells. Cell Death Dis 2022; 13:965. [PMID: 36396626 PMCID: PMC9672101 DOI: 10.1038/s41419-022-05398-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/18/2022]
Abstract
Histone acetylation/deacetylation play an essential role in modifying chromatin structure and in regulating cell plasticity in eukaryotic cells. Therefore, histone deacetylase (HDAC) pharmacological inhibitors are promising tools in the therapy of fibrotic diseases and in cancer. Peritoneal fibrosis is a pathological process characterized by many cellular and molecular alterations, including the acquisition of invasive/pro-fibrotic abilities by mesothelial cells (MCs) through induction of mesothelial to mesenchymal transition (MMT). The aim of this study was to characterize the molecular mechanism of the antifibrotic role of HDAC1 inhibition. Specifically, treatment with MS-275, an HDAC1-3 inhibitor previously known to promote MMT reversal, induced the expression of several TGFBRI mRNA-targeting miRNAs. Among them, miR-769-5p ectopic expression was sufficient to promote MMT reversal and to limit MC migration and invasion, whereas miR-769-5p silencing further enhanced mesenchymal gene expression. These results were confirmed by HDAC1 genetic silencing. Interestingly, miR-769-5p silencing maintained mesenchymal features despite HDAC1 inhibition, thus indicating that it is necessary to drive MMT reversal induced by HDAC1 inhibition. Besides TGFBRI, miR-769-5p was demonstrated to target SMAD2/3 and PAI-1 expression directly. When analyzing molecular mechanisms underlying miR-769-5p expression, we found that the transcription factor Wilms' tumor 1 (WT1), a master gene controlling MC development, binds to the miR-769-5p promoter favoring its expression. Interestingly, both WT1 expression and binding to miR-769-5p promoter were increased by HDAC1 inhibition and attenuated by TGFβ1 treatment. Finally, we explored the significance of these observations in the cell-to-cell communication: we evaluated the ability of miR-769-5p to be loaded into extracellular vesicles (EVs) and to promote MMT reversal in recipient mesenchymal-like MCs. Treatment of fibrotic MCs with EVs isolated from miR-769-5p over-expressing MCs promoted the down-regulation of specific mesenchymal targets and the reacquisition of an epithelial-like morphology. In conclusion, we highlighted an HDAC1-WT1-miR-769-5p axis potentially relevant for therapies aimed at counteracting organ fibrosis.
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Affiliation(s)
- Giulio Bontempi
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy ,grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Michela Terri
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy ,grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Sabrina Garbo
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Claudia Montaldo
- grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Davide Mariotti
- grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Veronica Bordoni
- grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Sergio Valente
- grid.7841.aDepartment of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Clemens Zwergel
- grid.7841.aDepartment of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Antonello Mai
- grid.7841.aDepartment of Drug Chemistry and Technologies, Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - Alessandra Marchetti
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Alessandro Domenici
- grid.7841.aRenal Unit, Department of Clinical and Molecular Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Paolo Menè
- grid.7841.aRenal Unit, Department of Clinical and Molecular Medicine, Sant’Andrea University Hospital, Sapienza University of Rome, 00189 Rome, Italy
| | - Cecilia Battistelli
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy
| | - Marco Tripodi
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy ,grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
| | - Raffaele Strippoli
- grid.7841.aDepartment of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161 Rome, Italy ,grid.419423.90000 0004 1760 4142Department of Epidemiology, Preclinical Research and Advanced Diagnostics, National Institute for Infectious Diseases L. Spallanzani, IRCCS, Via Portuense, 292, Rome, 00149 Italy
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Differentially Expressed microRNAs in Peritoneal Dialysis Effluent-Derived Exosomes from the Patients with Ultrafiltration Failure. Genet Res (Camb) 2022; 2022:2276175. [PMID: 36101746 PMCID: PMC9452989 DOI: 10.1155/2022/2276175] [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: 04/11/2022] [Revised: 08/01/2022] [Accepted: 08/12/2022] [Indexed: 11/20/2022] Open
Abstract
Background Ultrafiltration failure remains one of the most severe complications of long-term peritoneal dialysis (PD), which results in death. This study aimed to characterize the circulating exosomal microRNA (miRNA) profiles associated with ultrafiltration failure and explore its underlying mechanisms. Methods Exosomes were isolated from the peritoneal dialysis effluent (PDE) of patients with ultrafiltration failure or success using the ultracentrifugation method, and then transmission electron microscopy (TEM), nanoparticle tracking analysis (NTA), and western blot were used for exosome characterization. After that, the isolated exosomes were sent for small RNA sequencing, and eight differentially expressed miRNAs (DE-miRNAs) were chosen for RT-qPCR validation. Results TEM, NTA, and western blot revealed that exosomes were successfully isolated. After sequencing, 70 DE-miRNAs involved in ultrafiltration were identified, including 41 upregulated ones and 29 downregulated ones. Functional analyses revealed that these DE-miRNAs were significantly enriched in pathways of cancer, ubiquitin-mediated proteolysis, axon orientation, and the Rap1 and Ras signaling pathways. In addition, the consistency rate of RT-qPCR and sequencing results was 75%, which indicated the relatively high reliability of the sequencing data. Conclusions Our findings implied that these DE-miRNAs may be potential biomarkers of ultrafiltration failure, which would help us to discover novel therapeutic targets/pathways for ultrafiltration failure in patients with end-stage renal disease.
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Liu Y, Ma Z, Huang Z, Zou D, Li J, Feng P. MiR-122-5p promotes peritoneal fibrosis in a rat model of peritoneal dialysis by targeting Smad5 to activate Wnt/β-catenin pathway. Ren Fail 2022; 44:191-203. [PMID: 35170385 PMCID: PMC8856067 DOI: 10.1080/0886022x.2022.2030360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Peritoneal fibrosis (PF) is the main reason leading to declining efficiency and ultrafiltration failure of peritoneum, which restricts the application of peritoneal dialysis (PD). We aimed to investigate the effects and mechanisms of miR-122-5p on the PF. Sprague-Dawley (SD) rats were infused with glucose-based standard PD fluid to establish PF model. HE staining was performed to evaluate the extent of PF. Real-time fluorescence quantitative polymerase chain reaction (RT-qPCR) and fluorescence in situ hybridization (FISH) were performed to measure the expression level of miR-122-5p. Western blot was used to test the expression of transforming growth factor (TGF)-β1, platelet-derived growth factor (PDGF)-A, Fibronectin 1 (FN1), extracellular matrix protein 1 (ECM1), Smad5, α-smooth muscle actin (SMA), collagen type 1(COL-1), Vimentin, E-Cadherin, Wnt1, β-catenin, p-β-catenin, c-Myc, c-Jun, and Cyclin D1. Immunohistochemistry (IHC) staining was used to detect type I collagen alpha 1 (Col1α1), α-SMA, and E-Cadherin expression. We found PF was glucose concentration-dependently enhanced in peritoneum of PD rat. The PD rats showed increased miR-122-5p and decreased Smad5 expression. MiR-122-5p silencing improved PF and epithelial–mesenchymal transition (EMT) process in PD rats. MiR-122-5p silencing attenuated the activity of the Wnt/β-catenin signaling pathway. Importantly, dual-luciferase reporter assay showed Smad5 was a target gene of miR-122-5p. Smad5 overexpression significantly reversed the increases of PF and EMT progression induced by miR-122-5p overexpression. Moreover, miR-122-5p mimic activated Wnt/β-catenin activity, which was blocked by Smad5 overexpression. Overall, present results demonstrated that miR-122-5p overexpression showed a deterioration effect on PD-related PF by targeting Smad5 to activate Wnt/β-catenin pathway.
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Affiliation(s)
- Yirong Liu
- Department of Nephrology, Xining No.1 People's Hospital, Xining, PR China
| | - Zhihong Ma
- Department of Nephrology, Xining No.1 People's Hospital, Xining, PR China
| | - Zhenxing Huang
- Department of Nephrology, Xining No.1 People's Hospital, Xining, PR China
| | - Dongmei Zou
- Department of Endocrinology, Xining No.1 People's Hospital, Xining, PR China
| | - Junbin Li
- Department of Nephrology, Xining No.1 People's Hospital, Xining, PR China
| | - Ping Feng
- Department of Endocrinology, Xining No.1 People's Hospital, Xining, PR China
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10
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Duan Z, Yao J, Duan N, Wang M, Wang S. Sulodexide Prevents Peritoneal Fibrosis by Downregulating the Expression of TGF- β1 and Its Signaling Pathway Molecules. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:2052787. [PMID: 34497655 PMCID: PMC8421132 DOI: 10.1155/2021/2052787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022]
Abstract
Peritoneal dialysis is one of the main renal replacement treatments. However, long-term peritoneal dialysis keeps the peritoneum in contact with the sugar-containing nonphysiological peritoneal fluid, which leads to recurrent peritonitis, peritoneal fibrosis, and failure of ultrafiltration. Transforming growth factor-β1 (TGF-β1), related cytokines, and inflammatory factors are closely related to peritoneal fibrosis. Sulodexide (SLX) is a new type of glycosaminoglycan preparation, which is involved in the formation of an anionic charge barrier and can maintain the selective permeability of vascular endothelial cells. In this study, the innovative analysis of SLX specifically prevents the process of peritoneal dialysis peritoneal fibrosis by downregulating the expression of TGF-β1 and its signaling pathway molecules. We randomly divided 30 rats into three groups. The blank control group received no treatment. The peritoneal dialysis model group was injected with 4.25% peritoneal dialysate (PDF) 20 ml daily, and the SLX group was injected with 4.25% PDF 20 ml + sulodexide (SLX) 20 mg/kg daily. After 8 weeks of dialysis, the rats were sacrificed, and the peritoneal function test was performed to determine the amount of glucose transport and ultrafiltration. The thickness of peritoneal per unit area was observed under high magnification. The level of inflammation in peritoneal tissue and the expression of TGF-β1/Smad were detected. The results showed that SLX can significantly improve peritoneal tissue thickening and inflammation, can downregulate the expression of TGF-β1, Smad2, Smad3, and Smad7 in peritoneal tissue, and improve the progression of peritoneal fibrosis.
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Affiliation(s)
- Zhiqiang Duan
- Department of Renal Disease, People's Hospital of Tang County (The Fourth Central Hospital of Baoding City), Baoding, Hebei 072350, China
| | - Jia Yao
- Department of Renal Disease, People's Hospital of Tang County (The Fourth Central Hospital of Baoding City), Baoding, Hebei 072350, China
| | - Nan Duan
- Department of Geriatrics, Traditional Chinese Medicine Hospital of Wangdu County, Baoding, Hebei 072450, China
| | - Min Wang
- Department of Renal Disease, People's Hospital of Tang County (The Fourth Central Hospital of Baoding City), Baoding, Hebei 072350, China
| | - Shiwei Wang
- Department of Renal Disease, People's Hospital of Tang County (The Fourth Central Hospital of Baoding City), Baoding, Hebei 072350, China
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11
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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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12
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Sun M, Zhou W, Yao F, Song J, Xu Y, Deng Z, Diao H, Li S. MicroRNA-302b mitigates renal fibrosis via inhibiting TGF-β/Smad pathway activation. ACTA ACUST UNITED AC 2021; 54:e9206. [PMID: 33503202 PMCID: PMC7836400 DOI: 10.1590/1414-431x20209206] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 08/31/2020] [Indexed: 11/22/2022]
Abstract
Renal fibrosis is one of the most significant pathological changes after ureteral
obstruction. Transforming growth factor-β (TGF-β) signaling pathway plays
essential roles in kidney fibrosis regulation. The aims of the present study
were to investigate effects of microRNA-302b (miR-302b) on renal fibrosis, and
interaction between miR-302b and TGF-β signaling pathway in murine unilateral
ureteral obstruction (UUO) model. Microarray dataset GSE42716 was downloaded by
retrieving Gene Expression Omnibus database. In accordance with bioinformatics
analysis results, miR-302b was significantly down-regulated in UUO mouse kidney
tissue and TGF-β1-treated HK-2 cells. Masson's trichrome staining showed that
miR-302b mimics decreased renal fibrosis induced by UUO. The increased mRNA
expression of collagen I and α-smooth muscle actin (α-SMA) and decreased
expression of E-cadherin were reversed by miR-302b mimics. In addition, miR-302b
up-regulation also inhibited TGF-β1-induced epithelial mesenchymal transition
(EMT) of HK-2 cells by restoring E-cadherin expression and decreasing α-SMA
expression. miR-302b mimics suppressed both luciferase activity and protein
expression of TGF-βR2. However, miR-302b inhibitor increased TGF-βR2 luciferase
activity and protein expression. Meanwhile, miR-302b mimics inhibited TGF-βR2
mRNA expression and decreased Smad2 and Smad3 phosphorylation in
vivo and in vitro. Furthermore, over-expression of
TGF-βR2 restored the miR-302b-induced decrease of collagen I and α-SMA
expression. In conclusion, this study demonstrated that miR-302b attenuated
renal fibrosis by targeting TGF-βR2 to suppress TGF-β/Smad signaling activation.
Our findings showed that elevating renal miR-302b levels may be a novel
therapeutic strategy for preventing renal fibrosis.
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Affiliation(s)
- Mengkui Sun
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Wei Zhou
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Fei Yao
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Jianming Song
- Department of Pathology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Yanan Xu
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Zhimei Deng
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Hongwang Diao
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Shoulin Li
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China.,Laboratory of Pelvic Floor Muscle Function, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
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13
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Balzer MS. Molecular pathways in peritoneal fibrosis. Cell Signal 2020; 75:109778. [PMID: 32926960 DOI: 10.1016/j.cellsig.2020.109778] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 01/02/2023]
Abstract
Peritoneal dialysis (PD) is a renal replacement therapy for patients with end-stage renal disease that is equivalent to hemodialysis with respect to adequacy, mortality, and other outcome parameters, yet providing superior quality-of-life measures and cost savings. However, long-term usage of the patient's peritoneal membrane as a dialyzer filter is unphysiological and leads to peritoneal fibrosis, which is a major factor of patient morbidity and PD technique failure, resulting in a transfer to hemodialysis or death. Peritoneal fibrosis pathophysiology involves chronic inflammation and the fibrotic process itself. Frequently, inflammation precedes membrane fibrosis development, although a bidirectional relationship of one inducing the other exists. This review aims at highlighting the histopathological definition of peritoneal fibrosis, outlining the interplay of fibrosis, angiogenesis and epithelial-to-mesenchymal transition (EMT), delineating important fibrogenic pathways involving Smad-dependent and Smad-independent transforming growth factor-β (TGF-β) as well as connective tissue growth factor (CTGF) signaling, and summarizing historic and recent studies of inflammatory pathways involving NOD-like receptor protein 3 (NLRP3)/interleukin (IL)-1β, IL-6, IL-17, and other cytokines.
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Affiliation(s)
- Michael S Balzer
- Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany.
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14
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Tang L, Xu M, Zhang L, Qu L, Liu X. Role of αVβ3 in Prostate Cancer: Metastasis Initiator and Important Therapeutic Target. Onco Targets Ther 2020; 13:7411-7422. [PMID: 32801764 PMCID: PMC7395689 DOI: 10.2147/ott.s258252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 06/19/2020] [Indexed: 12/14/2022] Open
Abstract
In prostate cancer, distant organ metastasis is the leading cause of patient death. Although the mechanism of malignant tumor metastasis is unclear, studies have confirmed that integrin αVβ3 plays an important role in this process. In prostate cancer, αVβ3 mediates adhesion, invasion, immune escape and neovascularization through interactions with different ligands. Among these ligands and in addition to proteins that are directly related to tumor invasion, other proteins that contain the RGD structure could also bind to αVβ3 and cause a number of biological effects. In this article, we summarized the ligand and downstream proteins related to αVβ3-mediated prostate cancer metastasis as well as some diagnostic and therapeutic measures targeting αVβ3.
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Affiliation(s)
- Lin Tang
- College of Mathematics and Computer Science, Chifeng University, Chifeng, The Inner Mongol Autonomous Region 024005, People's Republic of China
| | - Meng Xu
- Department of Urology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning 121000, People's Republic of China.,R&D Department, Seekgene Technology Co., Ltd, Beijing 100000, People's Republic of China
| | - Long Zhang
- Department of Hepatobiliary Surgery, Yidu Central Hospital, Weifang, Shandong 262500, People's Republic of China
| | - Lin Qu
- Department of Orthopaedic Surgery, Anshan Hospital of the First Hospital of China Medical University, Anshan, Liaoning 114000, People's Republic of China
| | - Xiaoyan Liu
- Department of Pathology, The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100000, People's Republic of China
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15
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Wang Y, Shi Y, Tao M, Zhuang S, Liu N. Peritoneal fibrosis and epigenetic modulation. Perit Dial Int 2020; 41:168-178. [PMID: 32662737 DOI: 10.1177/0896860820938239] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Peritoneal dialysis (PD) is an effective treatment for patients with end-stage renal disease. However, peritoneal fibrosis (PF) is a common complication that ultimately leads to ultrafiltration failure and discontinuation of PD after long-term PD therapy. There is currently no effective therapy to prevent or delay this pathologic process. Recent studies have reported epigenetic modifications involved in PF, and accumulating evidence suggests that epigenetic therapies may have the potential to prevent and treat PF clinically. The major epigenetic modifications in PF include DNA methylation, histone modification, and noncoding RNAs. The mechanisms of epigenetic regulation in PF are complex, predominantly involving modification of signaling molecules, transcriptional factors, and genes. This review will describe the mechanisms of epigenetic modulation in PF and discuss the possibility of targeting them to prevent and treat this complication.
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Affiliation(s)
- Yi Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Yingfeng Shi
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Min Tao
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, 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, China
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16
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Guo Y, Wang L, Gou R, Tang L, Liu P. Noncoding RNAs in peritoneal fibrosis: Background, Mechanism, and Therapeutic Approach. Biomed Pharmacother 2020; 129:110385. [PMID: 32768932 DOI: 10.1016/j.biopha.2020.110385] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/31/2020] [Accepted: 06/07/2020] [Indexed: 12/14/2022] Open
Abstract
Peritoneal fibrosis (PF) is the main reason for patients to withdraw from peritoneal dialysis, while the mechanism underlying PF remains unclear. Increasing evidence has demonstrated the regulatory roles of different classes of noncoding RNAs (ncRNAs) in PF. MicroRNAs (miRNAs), which belong to a distinct class of ncRNAs, play crucial roles in the post-transcriptional regulation of gene expression. Studies have suggested that miRNAs play important roles in the pathogenesis of PF and have the potential to be used as diagnostic markers and therapeutic targets for PF in the future. Long noncoding RNAs (lncRNAs) have raised much attention in the recent years, which are involved in the pathophysiological processes of many diseases, including tumors, heart diseases and so on. Recently, some researchers have begun to notice the roles of lncRNAs in PF, and found that lncRNAs play certain roles in the pathogenesis of PF. Circular RNAs (circRNAs) have been proven to be participated in the pathogenesis of many diseases, including tumor metastasis, organ fibrosis and so on. However, studies on the correlation of circRNAs and PF are rather poor compared with miRNAs and lncRNAs. In this review, we will focus on the findings of ncRNAs in peritoneal dialysis therapy and discuss the rising interests in ncRNAs as diagnostic and therapeutic targets of PF.
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Affiliation(s)
- Yanhong Guo
- Department of Nephropathy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Liuwei Wang
- Department of Nephropathy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Rong Gou
- Department of Nephropathy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China
| | - Lin Tang
- Department of Nephropathy, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
| | - Peipei Liu
- Clinical Systems Biology Laboratories, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PR China.
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17
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Kang DH. Loosening of the mesothelial barrier as an early therapeutic target to preserve peritoneal function in peritoneal dialysis. Kidney Res Clin Pract 2020; 39:136-144. [PMID: 32576713 PMCID: PMC7321674 DOI: 10.23876/j.krcp.20.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
Phenotype transition of peritoneal mesothelial cells (MCs) including the epithelial-to-mesenchymal transition (EMT) is regarded as an early mechanism of peritoneal dysfunction and fibrosis in peritoneal dialysis (PD), producing proinflammatory and pro-fibrotic milieu in the intra-peritoneal cavity. Loosening of intercellular tight adhesion between adjacent MCs as an initial process of EMT creates the environment where mesothelium and submesothelial tissue are more vulnerable to the composition of bio-incompatible dialysates, reactive oxygen species, and inflammatory cytokines. In addition, down-regulation of epithelial cell markers such as E-cadherin facilitates de novo acquisition of mesenchymal phenotypes in MCs and production of extracellular matrices. Major mechanisms underlying the EMT of MCs include induction of oxidative stress, pro-inflammatory cytokines, endoplasmic reticulum stress and activation of the local renin-angiotensin system. Another mechanism of peritoneal EMT is mitigation of intrinsic defense mechanisms such as the peritoneal antioxidant system and anti-fibrotic peptide production in the peritoneal cavity. In addition to use of less bio-incompatible dialysates and optimum treatment of peritonitis in PD, therapies to prevent or alleviate peritoneal EMT have demonstrated a favorable effect on peritoneal function and structure, suggesting that EMT can be an early interventional target to preserve peritoneal integrity.
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Affiliation(s)
- Duk-Hee Kang
- Division of Nephrology, Department of Internal Medicine, Ewha Womans University School of Medicine, Ewha Medical Research Center, Seoul, Republic of Korea
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18
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Chu JYS, Chau MKM, Chan CCY, Tai ACP, Cheung KF, Chan TM, Yung S. miR-200c Prevents TGF-β1-Induced Epithelial-to-Mesenchymal Transition and Fibrogenesis in Mesothelial Cells by Targeting ZEB2 and Notch1. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 17:78-91. [PMID: 31226520 PMCID: PMC6586597 DOI: 10.1016/j.omtn.2019.05.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 05/06/2019] [Accepted: 05/12/2019] [Indexed: 12/14/2022]
Abstract
Peritoneal fibrosis and loss of transport function is a common complication contributing to adverse outcomes in patients on long-term peritoneal dialysis (PD). Epithelial-to-mesenchymal transition (EMT) in mesothelial cells is a salient feature, but its triggering mechanisms remain obscure. Dysregulation of microRNA (miR) expression is implicated in EMT and tissue fibrosis. We investigated the role of miR-200c in EMT and fibrogenesis in a murine PD model and in cultured peritoneal mesothelial cells. PD-fluid-treated mice showed peritoneal miR-200c expression reduced by 76.2% compared with PBS-treated mice, and this was accompanied by increased peritoneal α-smooth muscle actin, fibronectin, and collagen expression. PD fluid and TGF-β1 both reduced miR-200c expression in cultured mesothelial cells, accompanied by downregulation of E-cadherin and decorin, and induction of fibronectin, collagen I and III, and transcription factors related to EMT. Decorin prevented the suppression of miR-200c by TGF-β1. Lentivirus-mediated miR-200c overexpression prevented the induction of fibronectin, collagen I, and collagen III by TGF-β1, independent of decorin, and partially prevented E-cadherin suppression by TGF-β1. Target genes of miR-200c were identified as ZEB2 and Notch1. Our data demonstrate that miR-200c regulates EMT and fibrogenesis in mesothelial cells, and loss of peritoneal miR-200c contributes to PD-associated peritoneal fibrosis.
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Affiliation(s)
- Jessica Y S Chu
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Mel K M Chau
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Caleb C Y Chan
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Andrew C P Tai
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Kwok Fan Cheung
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Tak Mao Chan
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong.
| | - Susan Yung
- Department of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong.
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19
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Li X, Liu H, Sun L, Zhou X, Yuan X, Chen Y, Liu F, Liu Y, Xiao L. MicroRNA-302c modulates peritoneal dialysis-associated fibrosis by targeting connective tissue growth factor. J Cell Mol Med 2019; 23:2372-2383. [PMID: 30693641 PMCID: PMC6433681 DOI: 10.1111/jcmm.14029] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 10/15/2018] [Accepted: 10/22/2018] [Indexed: 12/13/2022] Open
Abstract
Long‐term peritoneal dialysis (PD) can lead to the induction of mesothelial/epithelial‐mesenchymal transition (MMT/EMT) and fibrosis; these effects eventually result in ultrafiltration failure and the discontinuation of PD. MicroRNA‐302c (miR‐302c) is believed to be involved in regulating tumour cell growth and metastasis by suppressing MMT, but the effect of miR‐302c on MMT in the context of PD is unknown. MiR‐302c levels were measured in mesothelial cells isolated from the PD effluents of continuous ambulatory peritoneal dialysis patients. After miR‐302c overexpression using lentivirus, human peritoneal mesothelial cell line (HMrSV5) and PD mouse peritoneum were treated with TGF‐β1 or high glucose peritoneal dialysate respectively. MiR‐302c expression level and MMT‐related factors alteration were observed. In addition, fibrosis of PD mouse peritoneum was alleviated by miR‐302c overexpression. Furthermore, the expression of connective tissue growth factor (CTGF) was negatively related by miR‐302c, and LV‐miR‐302c reversed the up‐regulation of CTGF induced by TGF‐β1. These data suggest that there is a novel TGF‐β1/miR‐302c/CTGF pathway that plays a significant role in the process of MMT and fibrosis during PD. MiR‐302c might be a potential biomarker for peritoneal fibrosis and a novel therapeutic target for protection against peritoneal fibrosis in PD patients.
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Affiliation(s)
- Xiejia Li
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xun Zhou
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xinke Yuan
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yusa Chen
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Fuyou Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yu Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Li Xiao
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China
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