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LncRNA CCAT2, involving miR-34a/TGF-β1/Smad4 signaling, regulate hepatic stellate cells proliferation. Sci Rep 2022; 12:21199. [PMID: 36482069 PMCID: PMC9732356 DOI: 10.1038/s41598-022-25738-6] [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: 08/02/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
miR-34a targeting on Smad4 plays important role in TGF-β1 pathway which is a dominant factor for balancing collagen production and degradation in hepatic stellate cells. TGF-β1/Smad4 regulated collagen deposition is a hallmark of hepatic fibrosis. The potential regulation on miR-34a by LncRNAs in hepatic stellate cells (HSCs) is still reserved to be revealed. In current study, it was hypothesized that a miR-34a interactor, lncRNA CCAT2 may regulate TGF-β1 pathway in liver fibrotic remodeling. The interaction between CCAT2 and miR-34a-5p was checked by dual luciferase assay. the effects of CCAT2 and miR-34a-5p on cell proliferation and apoptosis were verified by MTT assay, colony formation assay, and flow cytometry assay. Dual luciferase activity showed CCAT2 are targets of miR-34a-5p. Sh-CCAT2 transfection prohibit HSCs proliferation and induce HSCs apoptosis, also inhibited ECM protein synthesis in HSCs. Decreased miR-34a-5p enhanced HSCs proliferation, blocked HSCs apoptosis and promoted ECM protein production. miR-34a-5p inhibitor undo protective regulation of sh-CCAT2 in liver fibrosis. Furthermore, clinical investigation showed that CCAT2 and Smad4 expression level were significantly induced, while miR-34a-5p was significantly decreased in HBV related liver fibrosis serum. In conclusion, activated HSCs via TGF-β1/Smad4 signaling pathway was successfully alleviated by CCAT2 inhibition through miR-34a-5p elevation.
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Gergin ÖÖ, Pehlivan SS, Ulger M, Mat OC, Bayram A, Gönen ZB, Gökdemir NS, Biçer C, Yildiz K, Yay AH. Efficacy of stem cell-based therapies for colistin-induced nephrotoxicity. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103933. [PMID: 35863655 DOI: 10.1016/j.etap.2022.103933] [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: 02/26/2022] [Revised: 06/18/2022] [Accepted: 07/10/2022] [Indexed: 06/09/2023]
Abstract
The increase in infections with multidrug resistant bacteria has forced to return to the use of colistin, antibiotic with known nephrotoxicity. Mesenchymal stem cells (MSCs) are being extensively investigated for their potential in regenerative medicine. This study aimed to investigate the possible protective mechanisms of the MSCs against kidney injury induced by colistin. Forty adult female albino rats were randomly classified into 4 equal groups; the control group, the MSC-treated group (a single dose of 1 ×106 /ml MSCs through the tail vein), the colistin-treated group (36 mg/kg/day colistin was given for 7 days), and the both colistin and MSC group (36 mg/kg/day colistin and 1 ×106 /ml MSCs). Main outcome measures were histopathological alterations, kidney malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT) and immunohistological autophagy evaluation. MSC repressed the progression of colistin-induced kidney injury as evidenced by the improvement of histopathological alterations and the substantial increase MDA, and decrease SOD and CAT in serum levels. Moreover, MSC resulted in a profound reduction in oxidative stress as manifested by decreased MDA and increased SOD in serum. Notably, MSC suppressed colistin-induced autophagy; it reduced renal levels of Beclin-1, P62 and LC3A/B. Furthermore, MSC decreased renal levels of eNOS. Lastly, MSC efficiently decreased expression of the TUNEL positive cell number. MSC confers protection against colistin-induced kidney injury by alleviating oxidative stress, nitric oxide synthase besides modulating reducing autophagy and apoptosis.
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Affiliation(s)
- Özlem Öz Gergin
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, Kayseri, Turkey.
| | - Sibel Seckin Pehlivan
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, Kayseri, Turkey.
| | - Menekse Ulger
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, 38039 Kayseri, Turkey.
| | - Ozge Cengiz Mat
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, 38039 Kayseri, Turkey.
| | - Adnan Bayram
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, Kayseri, Turkey.
| | | | - Nur Seda Gökdemir
- Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey.
| | - Cihangir Biçer
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, Kayseri, Turkey.
| | - Karamehmet Yildiz
- Department of Anaesthesiology and Reanimation, Medical Faculty, Erciyes University, Kayseri, Turkey.
| | - Arzu Hanım Yay
- Department of Histology and Embryology, Faculty of Medicine, Erciyes University, 38039 Kayseri, Turkey; Genome and Stem Cell Center (GENKOK), Erciyes University, Kayseri, Turkey.
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Duan Q, Shen X, He D, Xu Y, Zheng Z, Zheng Z, Jiang X, Ren M, Chen L, Zhang T, Lu Y, Ye L, Xie X. Role and Mechanism of Epithelial-Mesenchymal Transition Mediated by Inflammatory Stress-Induced TGF- β1 in Promoting Arteriovenous Fistula Stenosis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:9454843. [PMID: 37671238 PMCID: PMC10477026 DOI: 10.1155/2022/9454843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 05/27/2022] [Indexed: 09/07/2023]
Abstract
Objective To explore the role and mechanism of epithelial-mesenchymal transition (EMT) mediated by inflammatory stress-induced TGF-β1 in promoting arteriovenous fistula stenosis. Methods The inflammatory cells HK-2 were cultured by adding TGF-β1. The optimal stimulation time was determined after TGF-β1 was added. HK-2 cells were divided into two groups, DMEM/F12 medium was added to one group (the control group), and the other group was treated with TGF-β1 (10 ng/ml) in serum-free DMEM/F12 medium to stimulate cell differentiation to mesenchymal. Results TGF-β1 was stably expressed after being transfected into EMT. The expression of TGF-β1 in the experimental group was higher than that in the control group (P < 0.05) 7 days after transfection. Western blot showed that TGF-β1 protein expression was higher in the experimental group 7 days after transfection, and no TGF-β1 protein expression was detected in the control group. The smooth muscle cells showed α-SMA expression in the control group, but no cells with expression of SMA and CD31/vWF were found at the same time; α-SMA expression was shown in smooth muscle cells and proliferative myofibroblasts, but no cells with expressions of SMA and CD31/vWF were found at the same time. The observation group showed that the expression of α-SMA was detected in smooth muscle cells and proliferative myofibroblasts, CD31/vWF was also expressed in endothelial cells, and α-SMA and vWF were also observed in endothelial cells, but no CD31 expression was found. Conclusion The inflammatory stress-induced TGF-β1 could act on epithelial-mesenchymal transition and promote the degree of arteriovenous fistula stenosis.
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Affiliation(s)
- Qingqing Duan
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Xiaogang Shen
- Nephrology Department, Zhejiang Provincial Peoples' Hospital, Hangzhou 310014, China
| | - Dongyuan He
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Yuankai Xu
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Zhigui Zheng
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Zhibo Zheng
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Xinxin Jiang
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Min Ren
- The Department of Obstetrics and Gynecology, Zhejiang Hospital, Hangzhou 310012, China
| | - Lili Chen
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Ting Zhang
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Yunan Lu
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Luxi Ye
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
| | - Xiaohui Xie
- Nephrology Department, Zhejiang Hospital, Hangzhou 310012, China
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Preconditioning and Engineering Strategies for Improving the Efficacy of Mesenchymal Stem Cell-Derived Exosomes in Cell-Free Therapy. Stem Cells Int 2022; 2022:1779346. [PMID: 35607400 PMCID: PMC9124131 DOI: 10.1155/2022/1779346] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/07/2022] [Accepted: 04/23/2022] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have been widely applied to regenerative medicine owing to their multiple differentiation, self-renewal, and immunomodulatory abilities. Exosomes are cell-secreted natural nanovesicles and thought to be mediators of intercellular communication and material transport. The therapeutic potential of MSCs can be largely attributed to MSC-derived exosomes (MSC-exosomes). Emerging evidence suggests that the therapeutic efficacy of MSC-exosomes is highly dependent on the status of MSCs, and optimization of the extracellular environment affects the exosomal content. Pretreatment methods including three-dimensional cultures, hypoxia, and other biochemical cues have been shown to potentially enhance the biological activity of MSC-exosomes while maintaining or enhancing their production. On the other hand, engineering means to enhance the desired function of MSC-exosomes has been rapidly gaining attention. In particular, biologically active molecule encapsulation and membrane modification can alter or enhance biological functions and targeting of MSC-exosomes. In this review, we summarize two possible strategies to improve the therapeutic activity of MSC-exosomes: preconditioning approaches and engineering exosomes. We also explore the underlying mechanisms of different strategies and discuss their advantages and limitations of the upcoming clinical applications.
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Yan C, Yu J. Noncoding RNA in Extracellular Vesicles Regulate Differentiation of Mesenchymal Stem Cells. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2021.806001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To achieve the desired outcome in tissue engineering regeneration, mesenchymal stem cells need to undergo a series of biological processes, including differentiating into the ideal target cells. The extracellular vesicle (EV) in the microenvironment contributes toward determining the fate of the cells with epigenetic regulation, particularly from noncoding RNA (ncRNA), and exerts transportation and protective effects on ncRNAs. We focused on the components and functions of ncRNA (particularly microRNA) in the EVs. The EVs modified by the ncRNA favor tissue regeneration and pose a potential challenge.
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Extracellular Vesicles in Organ Fibrosis: Mechanisms, Therapies, and Diagnostics. Cells 2021; 10:cells10071596. [PMID: 34202136 PMCID: PMC8305303 DOI: 10.3390/cells10071596] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 02/06/2023] Open
Abstract
Fibrosis is the unrelenting deposition of excessively large amounts of insoluble interstitial collagen due to profound matrigenic activities of wound-associated myofibroblasts during chronic injury in diverse tissues and organs. It is a highly debilitating pathology that affects millions of people globally and leads to decreased function of vital organs and increased risk of cancer and end-stage organ disease. Extracellular vesicles (EVs) produced within the chronic wound environment have emerged as important vehicles for conveying pro-fibrotic signals between many of the cell types involved in driving the fibrotic response. On the other hand, EVs from sources such as stem cells, uninjured parenchymal cells, and circulation have in vitro and in vivo anti-fibrotic activities that have provided novel and much-needed therapeutic options. Finally, EVs in body fluids of fibrotic individuals contain cargo components that may have utility as fibrosis biomarkers, which could circumvent current obstacles to fibrosis measurement in the clinic, allowing fibrosis stage, progression, or regression to be determined in a manner that is accurate, safe, minimally-invasive, and conducive to repetitive testing. This review highlights the rapid and recent progress in our understanding of EV-mediated fibrotic pathogenesis, anti-fibrotic therapy, and fibrosis staging in the lung, kidney, heart, liver, pancreas, and skin.
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Corrêa RR, Juncosa EM, Masereeuw R, Lindoso RS. Extracellular Vesicles as a Therapeutic Tool for Kidney Disease: Current Advances and Perspectives. Int J Mol Sci 2021; 22:ijms22115787. [PMID: 34071399 PMCID: PMC8198688 DOI: 10.3390/ijms22115787] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles (EVs) have been described as important mediators of cell communication, regulating several physiological processes, including tissue recovery and regeneration. In the kidneys, EVs derived from stem cells have been shown to support tissue recovery in diverse disease models and have been considered an interesting alternative to cell therapy. For this purpose, however, several challenges remain to be overcome, such as the requirement of a high number of EVs for human therapy and the need for optimization of techniques for their isolation and characterization. Moreover, the kidney’s complexity and the pathological process to be treated require that EVs present a heterogeneous group of molecules to be delivered. In this review, we discuss the recent advances in the use of EVs as a therapeutic tool for kidney diseases. Moreover, we give an overview of the new technologies applied to improve EVs’ efficacy, such as novel methods of EV production and isolation by means of bioreactors and microfluidics, bioengineering the EV content and the use of alternative cell sources, including kidney organoids, to support their transfer to clinical applications.
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Affiliation(s)
- Raphael Rodrigues Corrêa
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
| | - Estela Mancheño Juncosa
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands;
| | - Rosalinde Masereeuw
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands;
- Correspondence: (R.M.); (R.S.L.); Tel.: +31-30-253-3529 (R.M.); Tel.: +55-21-3938-6520 (R.S.L.)
| | - Rafael Soares Lindoso
- Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil;
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands;
- National Institute of Science and Technology for Regenerative Medicine-REGENERA, Federal University of Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
- Correspondence: (R.M.); (R.S.L.); Tel.: +31-30-253-3529 (R.M.); Tel.: +55-21-3938-6520 (R.S.L.)
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Bone marrow mesenchymal stem cell-derived exosomes alleviate hyperoxia-induced lung injury via the manipulation of microRNA-425. Arch Biochem Biophys 2020; 697:108712. [PMID: 33264631 DOI: 10.1016/j.abb.2020.108712] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Hyperoxia-induced lung injury (HILI) is an acute lung injury (LI) induced by extended periods of exposure to hyperoxia. Alleviating LI by bone marrow mesenchymal stem cell-derived exosomes (BMSCs-Exos) and microRNAs (miRs) has been previously reported. This study is devised to probe the interaction between BMSCs-Exos and miR-425 in HILI. METHODS Firstly, BMSCs-Exos were isolated and identified. Then, HILI rat models and RLE-6TN cell models were successfully established and treated by BMSCs-Exos. Afterwards, functional assays were conducted to explore cell biological behaviors in models, with miR-425 expression detected. Then, the target relation between miR-425 and PTEN was clarified by luciferase reporter assay. Eventually, expression of PTEN and the PI3K/Akt axis was assessed by Western blotting and qRT-PCR. RESULTS BMSCs-Exos promoted miR-425 expression and attenuated HILI and H2O2 induced RLE-6TN cell injury as evidence by alleviated lung cell injury, decreased TUNEL-positive cells, induced cell viability and declined apoptosis (all p < 0.05). Besides, when miR-425 was knocked-down, the protective role of BMSCs-Exos in HILI was also reduced (all p < 0.05). miR-425 targeted PTEN mRNA, whose upregulation reversed the protective role of BMSCs-Exos in HILI (all p < 0.05). BMSCs-Exos improved the quenched levels of the PI3K/AKT axis in HILI (all p < 0.05). CONCLUSION Our data supported that miR-425 in BMSCs-Exos inhibits HILI by targeting PTEN and upregulating the PI3K/AKT axis. This study may provide personalized interventions for HILI remedy.
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Lin S, Lin W, Liao C, Zhou T. Nephroprotective Effect of Mesenchymal Stem Cell-Based Therapy of Kidney Disease Induced by Toxicants. Stem Cells Int 2020; 2020:8819757. [PMID: 33424979 PMCID: PMC7773456 DOI: 10.1155/2020/8819757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/28/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Renal damage caused by drug toxicity is becoming increasingly common in the clinic. Preventing and treating kidney damage caused by drug toxicity are essential to maintain patient health and reduce the social and economic burden. In this study, we performed a meta-analysis to assess the nephroprotective effect of mesenchymal stem cells (MSCs) in the treatment of kidney disease induced by toxicants. METHODS The Cochrane Library, Embase, ISI Web of Science, and PubMed databases were searched up to December 31, 2019, to identify studies and extract data to assess the efficacy of MSCs treatment of kidney disease induced by toxicants using Cochrane Review Manager Version 5.3. A total of 27 studies were eligible and selected for this meta-analysis. RESULTS The results showed that a difference in serum creatinine levels between the MSC treatment group and control group was observed for 2, 4, 5, 6-8, 10-15, 28-30, and ≥42 days (2 days: WMD = -0.88, 95% CI: -1.34, -0.42, P = 0.0002; 4 days: WMD = -0.74, 95% CI: -0.95, -0.54, P < 0.00001; 5 days: WMD = -0.46, 95% CI: -0.67, -0.25, P < 0.0001; 6-8 days: WMD = -0.55, 95% CI: -0.84, -0.26, P = 0.0002; 10-15 days: WMD = -0.37, 95% CI: -0.53, -0.20, P < 0.0001; 28-30 days: WMD = -0.53, 95% CI: -1.04, -0.02, P = 0.04; ≥42 days: WMD = -0.22, 95% CI: -0.39, -0.06, P = 0.007). Furthermore, a difference in blood urea nitrogen levels between the MSC treatment group and control group was observed for 2-3, 4-5, 6-8, and ≥28 days. The results also indicate that MSC treatment alleviated inflammatory cells, necrotic tubules, regenerative tubules, and renal interstitial fibrosis in kidney disease induced by toxicants. CONCLUSION MSCs may be a promising therapeutic agent for kidney disease induced by toxicants.
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Affiliation(s)
- Shujun Lin
- Department of Nephrology, The Second Affiliated Hospital, Shantou University Medical College, 515041 Shantou, China
| | - Wenshan Lin
- Department of Nephrology, The Second Affiliated Hospital, Shantou University Medical College, 515041 Shantou, China
| | - Chunling Liao
- Department of Nephrology, The Second Affiliated Hospital, Shantou University Medical College, 515041 Shantou, China
| | - Tianbiao Zhou
- Department of Nephrology, The Second Affiliated Hospital, Shantou University Medical College, 515041 Shantou, China
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