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Mahajan A, Gunewardena S, Morris A, Clauss M, Dhillon NK. Analysis of MicroRNA Cargo in Circulating Extracellular Vesicles from HIV-Infected Individuals with Pulmonary Hypertension. Cells 2024; 13:886. [PMID: 38891019 PMCID: PMC11172129 DOI: 10.3390/cells13110886] [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: 03/22/2024] [Revised: 04/26/2024] [Accepted: 05/05/2024] [Indexed: 06/20/2024] Open
Abstract
The risk of developing pulmonary hypertension (PH) in people living with HIV is at least 300-fold higher than in the general population, and illicit drug use further potentiates the development of HIV-associated PH. The relevance of extracellular vesicles (EVs) containing both coding as well as non-coding RNAs in PH secondary to HIV infection and drug abuse is yet to be explored. We here compared the miRNA cargo of plasma-derived EVs from HIV-infected stimulant users with (HIV + Stimulants + PH) and without PH (HIV + Stimulants) using small RNA sequencing. The data were compared with 12 PH datasets available in the GEO database to identify potential candidate gene targets for differentially altered miRNAs using the following functional analysis tools: ingenuity pathway analysis (IPA), over-representation analysis (ORA), and gene set enrichment analysis (GSEA). MiRNAs involved in promoting cell proliferation and inhibition of intrinsic apoptotic signaling pathways were among the top upregulated miRNAs identified in EVs from the HIV + Stimulants + PH group compared to the HIV + Stimulants group. Alternatively, the downregulated miRNAs in the HIV + Stimulants + PH group suggested an association with the negative regulation of smooth muscle cell proliferation, IL-2 mediated signaling, and transmembrane receptor protein tyrosine kinase signaling pathways. The validation of significantly differentially expressed miRNAs in an independent set of HIV-infected (cocaine users and nondrug users) with and without PH confirmed the upregulation of miR-32-5p, 92-b-3p, and 301a-3p positively regulating cellular proliferation and downregulation of miR-5571, -4670 negatively regulating smooth muscle proliferation in EVs from HIV-PH patients. This increase in miR-301a-3p and decrease in miR-4670 were negatively correlated with the CD4 count and FEV1/FVC ratio, and positively correlated with viral load. Collectively, this data suggest the association of alterations in the miRNA cargo of circulating EVs with HIV-PH.
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Affiliation(s)
- Aatish Mahajan
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Kansas Medical Center, Mail Stop 3007, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
| | - Sumedha Gunewardena
- Department of Molecular & Integrative Physiology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Alison Morris
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA;
| | - Matthias Clauss
- Pulmonary, Critical Care, Sleep and Occupational Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Navneet K. Dhillon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Kansas Medical Center, Mail Stop 3007, 3901 Rainbow Blvd, Kansas City, KS 66160, USA
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2
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Chen Z, Xia X, Yao M, Yang Y, Ao X, Zhang Z, Guo L, Xu X. The dual role of mesenchymal stem cells in apoptosis regulation. Cell Death Dis 2024; 15:250. [PMID: 38582754 PMCID: PMC10998921 DOI: 10.1038/s41419-024-06620-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/14/2024] [Accepted: 03/18/2024] [Indexed: 04/08/2024]
Abstract
Mesenchymal stem cells (MSCs) are widely distributed pluripotent stem cells with powerful immunomodulatory capacity. MSCs transplantation therapy (MSCT) is widely used in the fields of tissue regeneration and repair, and treatment of inflammatory diseases. Apoptosis is an important way for tissues to maintain cell renewal, but it also plays an important role in various diseases. And many studies have shown that MSCs improves the diseases by regulating cell apoptosis. The regulation of MSCs on apoptosis is double-sided. On the one hand, MSCs significantly inhibit the apoptosis of diseased cells. On the other hand, MSCs also promote the apoptosis of tumor cells and excessive immune cells. Furthermore, MSCs regulate apoptosis through multiple molecules and pathways, including three classical apoptotic signaling pathways and other pathways. In this review, we summarize the current evidence on the regulation of apoptosis by MSCs.
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Affiliation(s)
- Zhuo Chen
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma and Chemical Poisoning, Daping Hospital, Army Medical University, Chongqing, 400042, China
- Department of General Surgery, The 906th Hospital of PLA, Ningbo, 315040, Zhejiang, China
| | - Xuewei Xia
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma and Chemical Poisoning, Daping Hospital, Army Medical University, Chongqing, 400042, China
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400042, China
| | - Mengwei Yao
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma and Chemical Poisoning, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Yi Yang
- Department of Rheumatology and Immunology, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Xiang Ao
- Department of orthopedics, The 953th Hospital of PLA, Shigatse Branch of Xinqiao Hospital, Army Medical University, Shigatse, 857000, China
| | - Zhaoqi Zhang
- Department of Neurosurgery, The 906th Hospital of PLA, Ningbo, 315040, Zhejiang, China
| | - Li Guo
- Endocrinology Department, First Affiliated Hospital, Army Medical University, Chongqing, 400038, China.
| | - Xiang Xu
- Department of Stem Cell & Regenerative Medicine, State Key Laboratory of Trauma and Chemical Poisoning, Daping Hospital, Army Medical University, Chongqing, 400042, China.
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Science and Technology Achievement Incubation Center, Kunming Medical University, Kunming, 650500, China.
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3
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Liu C, Liu X, Li H, Kang Z. Advances in the regulation of adipogenesis and lipid metabolism by exosomal ncRNAs and their role in related metabolic diseases. Front Cell Dev Biol 2023; 11:1173904. [PMID: 37791070 PMCID: PMC10543472 DOI: 10.3389/fcell.2023.1173904] [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: 02/25/2023] [Accepted: 08/15/2023] [Indexed: 10/05/2023] Open
Abstract
Exosomes are membrane-bound extracellular vesicles released following the fusion of multivesicular bodies (MVBs) with the cell membrane. Exosomes transport diverse molecules, including proteins, lipids, DNA and RNA, and regulate distant intercellular communication. Noncoding RNA (ncRNAs) carried by exosomes regulate cell-cell communication in tissues, including adipose tissue. This review summarizes the action mechanisms of ncRNAs carried by exosomes on adipocyte differentiation and modulation of adipogenesis by exosomal ncRNAs. This study aims to provide valuable insights for developing novel therapeutics.
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Affiliation(s)
- Cong Liu
- Department of Breast Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xilin Liu
- Department of Hand and Foot Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Hong Li
- Department of Nursing, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Zhichen Kang
- Department of Rehabilitation, The Second Hospital of Jilin University, Changchun, China
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4
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Tran T, Cruz C, Chan A, Awad S, Rajasingh J, Deth R, Gurusamy N. Mesenchymal Stem Cell-Derived Long Noncoding RNAs in Cardiac Injury and Repair. Cells 2023; 12:2268. [PMID: 37759491 PMCID: PMC10527806 DOI: 10.3390/cells12182268] [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: 07/16/2023] [Revised: 09/05/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023] Open
Abstract
Cardiac injury, such as myocardial infarction and heart failure, remains a significant global health burden. The limited regenerative capacity of the adult heart poses a challenge for restoring its function after injury. Mesenchymal stem cells (MSCs) have emerged as promising candidates for cardiac regeneration due to their ability to differentiate into various cell types and secrete bioactive molecules. In recent years, attention has been given to noncoding RNAs derived from MSCs, particularly long noncoding RNAs (lncRNAs), and their potential role in cardiac injury and repair. LncRNAs are RNA molecules that do not encode proteins but play critical roles in gene regulation and cellular responses including cardiac repair and regeneration. This review focused on MSC-derived lncRNAs and their implications in cardiac regeneration, including their effects on cardiac function, myocardial remodeling, cardiomyocyte injury, and angiogenesis. Understanding the molecular mechanisms of MSC-derived lncRNAs in cardiac injury and repair may contribute to the development of novel therapeutic strategies for treating cardiovascular diseases. However, further research is needed to fully elucidate the potential of MSC-derived lncRNAs and address the challenges in this field.
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Affiliation(s)
- Talan Tran
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Claudia Cruz
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Anthony Chan
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Salma Awad
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Johnson Rajasingh
- Department of Bioscience Research, University of Tennessee Health Science Center, 847 Monroe Avenue, Memphis, TN 38163, USA
| | - Richard Deth
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
| | - Narasimman Gurusamy
- Department of Pharmaceutical Sciences, Barry and Judy Silverman College of Pharmacy, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA
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5
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Zhang W, Wang T, Xue Y, Zhan B, Lai Z, Huang W, Peng X, Zhou Y. Research progress of extracellular vesicles and exosomes derived from mesenchymal stem cells in the treatment of oxidative stress-related diseases. Front Immunol 2023; 14:1238789. [PMID: 37646039 PMCID: PMC10461809 DOI: 10.3389/fimmu.2023.1238789] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 07/24/2023] [Indexed: 09/01/2023] Open
Abstract
There is growing evidence that mesenchymal stem cell-derived extracellular vesicles and exosomes can significantly improve the curative effect of oxidative stress-related diseases. Mesenchymal stem cell extracellular vesicles and exosomes (MSC-EVs and MSC-Exos) are rich in bioactive molecules and have many biological regulatory functions. In this review, we describe how MSC-EVs and MSC-Exos reduce the related markers of oxidative stress and inflammation in various systemic diseases, and the molecular mechanism of MSC-EVs and MSC-Exos in treating apoptosis and vascular injury induced by oxidative stress. The results of a large number of experimental studies have shown that both local and systemic administration can effectively inhibit the oxidative stress response in diseases and promote the survival and regeneration of damaged parenchymal cells. The mRNA and miRNAs in MSC-EVs and MSC-Exos are the most important bioactive molecules in disease treatment, which can inhibit the apoptosis, necrosis and oxidative stress of lung, heart, kidney, liver, bone, skin and other cells, and promote their survive and regenerate.
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Affiliation(s)
- Wenwen Zhang
- The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China
- Department of Pathophysiology, Guangdong Medical University, Dongguan, Guangdong, China
| | - Tingyu Wang
- The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China
- Department of Pathophysiology, Guangdong Medical University, Dongguan, Guangdong, China
| | - Yuanye Xue
- The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China
- Department of Pathophysiology, Guangdong Medical University, Dongguan, Guangdong, China
| | - Bingbing Zhan
- School of Pharmaceutical Sciences, Guangdong Medical University, Dongguan, China
| | - Zengjie Lai
- The Second Clinical Medical College of Guangdong Medical University, Dongguan, China
| | - Wenjie Huang
- School of Medical Technology, Guangdong Medical University, Dongguan, China
| | - Xinsheng Peng
- Biomedical Innovation Center, Guangdong Medical University, Dongguan, China
- Institute of Marine Medicine, Guangdong Medical University, Zhanjiang, China
| | - Yanfang Zhou
- The First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China
- Department of Pathophysiology, Guangdong Medical University, Dongguan, Guangdong, China
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6
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Lopez-Yus M, García-Sobreviela MP, Del Moral-Bergos R, Arbones-Mainar JM. Gene Therapy Based on Mesenchymal Stem Cells Derived from Adipose Tissue for the Treatment of Obesity and Its Metabolic Complications. Int J Mol Sci 2023; 24:ijms24087468. [PMID: 37108631 PMCID: PMC10138576 DOI: 10.3390/ijms24087468] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/12/2023] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
Obesity is a highly prevalent condition often associated with dysfunctional adipose tissue. Stem cell-based therapies have become a promising tool for therapeutic intervention in the context of regenerative medicine. Among all stem cells, adipose-derived mesenchymal stem cells (ADMSCs) are the most easily obtained, have immunomodulatory properties, show great ex vivo expansion capacity and differentiation to other cell types, and release a wide variety of angiogenic factors and bioactive molecules, such as growth factors and adipokines. However, despite the positive results obtained in some pre-clinical studies, the actual clinical efficacy of ADMSCs still remains controversial. Transplanted ADMSCs present a meager rate of survival and proliferation, possibly because of the damaged microenvironment of the affected tissues. Therefore, there is a need for novel approaches to generate more functional ADMSCs with enhanced therapeutic potential. In this context, genetic manipulation has emerged as a promising strategy. In the current review, we aim to summarize several adipose-focused treatments of obesity, including cell therapy and gene therapy. Particular emphasis will be given to the continuum from obesity to metabolic syndrome, diabetes, and underlying non-alcoholic fatty liver disease (NAFLD). Furthermore, we will provide insights into the potential shared adipocentric mechanisms involved in these pathophysiological processes and their remediation using ADMSCs.
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Affiliation(s)
- Marta Lopez-Yus
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
| | - Maria Pilar García-Sobreviela
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
| | - Raquel Del Moral-Bergos
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
| | - Jose M Arbones-Mainar
- Adipocyte and Fat Biology Laboratory (AdipoFat), Translational Research Unit, University Hospital Miguel Servet, 50009 Zaragoza, Spain
- Instituto Aragones de Ciencias de la Salud (IACS), 50009 Zaragoza, Spain
- Instituto de Investigación Sanitaria (IIS) Aragon, 50009 Zaragoza, Spain
- CIBER Fisiopatología Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, 28029 Madrid, Spain
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7
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MiR-302a Regenerates Human Corneal Endothelial Cells against IFN-γ-Induced Cell Death. Cells 2022; 12:cells12010036. [PMID: 36611829 PMCID: PMC9818234 DOI: 10.3390/cells12010036] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/08/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Damage to human corneal endothelial cells (hCECs) leads to bullous keratopathy because these cells cannot be regenerated in vivo. In this study, we investigated the protective role of microRNA (miR)-302a against interferon-γ (IFN-γ)-induced senescence and cell death of hCECs. Cultured hCECs were transfected with miR-302a and treated with IFN-γ (20 ng/mL) to evaluate the protective effect of miR-302a on IFN-γ-induced cell death. Senescence was evaluated by the senescence-associated β-galactosidase (SA-β-gal) assay, and the secretion of senescence-associated secretory phenotype (SASP) factors was analyzed. Mitochondrial function and endoplasmic reticulum (ER) stress were assessed. We revealed that miR-302a enhanced the cell viability and proliferation of hCECs and that IFN-γ increased the cell size, the number of SA-β-gal-positive cells, and SASP factors, and arrested the cell cycle, which was eliminated by miR-302a. miR-302a ameliorated mitochondrial oxidative stress and ER stress levels which were induced by IFN-γ. IFN-γ decreased the mitochondrial membrane potential and promoted autophagy, which was eliminated by miR-302a. The in vivo study showed that regeneration of rat CECs was promoted in the miR-302a group by inhibiting IFN-γ and enhancing mitochondrial function. In conclusion, miR-302a eliminated IFN-γ-induced senescence and cellular damage by regulating the oxidative and ER stress, and promoting the proliferation of CECs. Therefore, miR-302a may be a therapeutic option to protect hCECs against IFN-γ-induced stress.
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8
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He C, Wang Y, Zhu J, Li Y, Chen J, Lin Y. Integrative Analysis of lncRNA-miRNA-mRNA Regulatory Network Reveals the Key lncRNAs Implicated Potentially in the Differentiation of Adipocyte in Goats. Front Physiol 2022; 13:900179. [PMID: 35600305 PMCID: PMC9117728 DOI: 10.3389/fphys.2022.900179] [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: 03/20/2022] [Accepted: 04/20/2022] [Indexed: 12/03/2022] Open
Abstract
Goats are popular in China because of their superior meat quality, delicate flesh, and unique flavor. Long noncoding RNAs (lncRNAs) play important roles in transcriptional and post-transcriptional regulation of gene expression. However, the effects of lncRNAs on adipocyte differentiation in goat has not been fully elucidated yet. In this investigation, we performed RNA-Seq analysis of intramuscular and subcutaneous adipocytes from Jianzhou Daer goat before and after differentiation, including both intramuscular preadipocytes (IMPA) vs. intramuscular adipocytes (IMA) and subcutaneous preadipocytes (SPA) vs. subcutaneous adipocytes (SA). A total of 289.49 G clean reads and 12,519 lncRNAs were obtained from 20 samples. In total, 3,733 differentially expressed RNAs (182 lncRNAs and 3,551 mRNAs) were identified by pairwise comparison. There were 135 differentially expressed lncRNAs (DELs) specific to intramuscular adipocytes, 39 DELs specific to subcutaneous adipocytes, and 8 DELs common to both adipocytes in these 182 DELs. Some well-known and novel pathways associated with preadipocyte differentiation were identified: fat acid metabolism, TGF-beta signaling pathway and PI3K-Akt signaling pathway. By integrating miRNA-seq data from another study, we also identified hub miRNAs in both types of fat cells. Our analysis revealed the unique and common lncRNA-miRNA-mRNA networks of two kinds of adipocytes. Several lncRNAs that regulate potentially goat preadipocyte differentiation were identified, such as XR_001918 647.1, XR_001917728.1, XR_001297263.2 and LNC_004191. Furthermore, our findings from the present study may contribute to a better understanding of the molecular mechanisms underlying in goat meat quality and provide a theoretical basis for further goat molecular breeding.
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Affiliation(s)
- Changsheng He
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
- College of Animal and Veterinary Science, Southwest Minzu University, Chengdu, China
| | - Yong Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
| | - Jiangjiang Zhu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
| | - Yanyan Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
- College of Animal and Veterinary Science, Southwest Minzu University, Chengdu, China
| | - Juan Chen
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- College of Food Science and Technology, Southwest Minzu University, Chengdu, China
| | - Yaqiu Lin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization of Education Ministry, Southwest Minzu University, Chengdu, China
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation of Sichuan Province, Southwest Minzu University, Chengdu, China
- College of Animal and Veterinary Science, Southwest Minzu University, Chengdu, China
- *Correspondence: Yaqiu Lin,
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Reily-Bell M, Bahn A, Katare R. Reactive Oxygen Species-Mediated Diabetic Heart Disease: Mechanisms and Therapies. Antioxid Redox Signal 2022; 36:608-630. [PMID: 34011169 DOI: 10.1089/ars.2021.0098] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Significance: Diabetic heart disease (DHD) is the primary cause of mortality in people with diabetes. A significant contributor to the development of DHD is the disruption of redox balance due to reactive oxygen species (ROS) overproduction resulting from sustained high glucose levels. Therapies specifically focusing on the suppression of ROS will hugely benefit patients with DHD. Recent Advances: In addition to the gold standard pharmacological therapies, the recent development of gene therapy provides an exciting avenue for developing new therapeutics to treat ROS-mediated DHD. In particular, microRNAs (miRNAs) are gaining interest due to their crucial role in several physiological and pathological processes, including DHD. Critical Issues: miRNAs have many targets and differential function depending on the environment. Therefore, a proper understanding of the function of miRNAs in specific cell types and cell states is required for the successful application of this technology. In the present review, we first provide an overview of the role of ROS in contributing to DHD and the currently available treatments. We then discuss the newer gene therapies with a specific focus on the role of miRNAs as the causative factors and therapeutic targets to combat ROS-mediated DHD. Future Directions: The future of miRNA therapeutics in tackling ROS-mediated DHD is dependent on a complete understanding of how miRNAs behave in different cells and environments. Future research should also aim to develop conditional miRNA therapeutic platforms capable of switching on and off in response to disruptions in the redox state. Antioxid. Redox Signal. 36, 608-630.
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Affiliation(s)
- Matthew Reily-Bell
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Andrew Bahn
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
| | - Rajesh Katare
- Department of Physiology-HeartOtago, University of Otago, Dunedin, New Zealand
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Liu Y, Guan R, Yan J, Zhu Y, Sun S, Qu Y. Mesenchymal Stem Cell-Derived Extracellular Vesicle-Shuttled microRNA-302d-3p Represses Inflammation and Cardiac Remodeling Following Acute Myocardial Infarction. J Cardiovasc Transl Res 2022; 15:754-771. [PMID: 35194734 DOI: 10.1007/s12265-021-10200-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 12/20/2021] [Indexed: 01/08/2023]
Abstract
Our research intended to investigate the roles of mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs) in acute myocardial infarction (AMI) via delivery of microRNA (miR)-302d-3p. AMI mouse models were established. EVs isolated from MSCs with miR-302d-3p mimic were injected near the infarct area or co-cultured with hypoxic cardiomyocytes to evaluate their effects. The expression of NF-κB pathway-related genes and inflammatory factors was determined. AMI mice exhibited downregulated miR-302d-3p and elevated MD2 and BCL6 levels. BCL6 was negatively targeted by miR-302d-3p and could bind to MD2 promoter to upregulate MD2 expression. MSCs-EVs, MSCs-EVs carrying miR-302d-3p, or BCL6 or MD2 silencing inactivated the NF-κB pathway and alleviated infarcted area, myocardial fibrosis, inflammation, apoptosis, and cardiac dysfunction in AMI mice. Besides, MSCs-EVs, MSCs-EVs carrying miR-302d-3p, or BCL6 or MD2 silencing diminished viability and inflammation but augmented apoptosis of hypoxic cardiomyocytes. Conclusively, MSCs-EVs carrying miR-302d-3p repressed inflammation and cardiac remodeling after AMI via BCL6/MD2/NF-κB axis.
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Affiliation(s)
- Yuanyuan Liu
- Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China
| | - Rongchun Guan
- Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China
| | - Jizhou Yan
- The Fifth Ward of Cardiovascular Medicine, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China
| | - Yueping Zhu
- Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China
| | - Shiming Sun
- Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China
| | - Yan Qu
- Clinical Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, 161000, People's Republic of China.
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11
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Adipose Tissue-Derived Mesenchymal Stem Cells as a Potential Restorative Treatment for Cartilage Defects: A PRISMA Review and Meta-Analysis. Pharmaceuticals (Basel) 2021; 14:ph14121280. [PMID: 34959680 PMCID: PMC8705514 DOI: 10.3390/ph14121280] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/03/2021] [Accepted: 12/04/2021] [Indexed: 12/13/2022] Open
Abstract
Cartilage defects are a predisposing factor for osteoarthritis. Conventional therapies are mostly palliative and there is an interest in developing newer therapies that target the disease’s progression. Mesenchymal stem cells (MSCs) have been suggested as a promising therapy to restore hyaline cartilage to cartilage defects, though the optimal cell source has remained under investigation. A PRISMA systematic review was conducted utilising five databases (MEDLINE, EMBASE, Cochrane Library, Scopus, Web of Science) which identified nineteen human studies that used adipose tissue-derived MSC (AMSC)-based therapies, including culture-expanded AMSCs and stromal vascular fraction, to treat cartilage defects. Clinical, imaging and histological outcomes, as well as other relevant details pertaining to cartilage regeneration, were extracted from each study. Pooled analysis revealed a significant improvement in WOMAC scores (mean difference: −25.52; 95%CI (−30.93, −20.10); p < 0.001), VAS scores (mean difference: −3.30; 95%CI (−3.72, −2.89); p < 0.001), KOOS scores and end point MOCART score (mean: 68.12; 95%CI (62.18, 74.05)), thus showing improvement. The studies in this review demonstrate the safety and efficacy of AMSC-based therapies for cartilage defects. Establishing standardised methods for MSC extraction and delivery, and performing studies with long follow-up should enable future high-quality research to provide the evidence needed to bring AMSC-based therapies into the market.
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12
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Wu M, Zhao Y, Li L, Wang G, Xing L. Exosomal microRNA‑302a promotes trophoblast migration and proliferation, and represses angiogenesis by regulating the expression levels of VEGFA in preeclampsia. Mol Med Rep 2021; 24:864. [PMID: 34676880 DOI: 10.3892/mmr.2021.12504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/10/2021] [Indexed: 11/06/2022] Open
Abstract
The global morbidity rate of preeclampsia (PE) is 3‑7, and 10‑20% of maternal deaths are associated with PE. However, the mechanism of its pathogenesis remains unknown. The aim of the present study was to examine the relationship between microRNA‑302a (miR‑302a) and PE. Firstly, the relative expression levels of miR‑302a in placental tissues from patients with PE and normal controls were analyzed using reverse transcription‑quantitative PCR. miR‑302a expression was upregulated in PE tissues, particularly in severe PE. Subsequently, HTR‑8/SVneo cells were transfected with miR‑302a vectors to overexpress miR‑302a. The overexpression of miR‑302a markedly promoted cell proliferation, colony formation, migration and invasion in vitro. Subsequently, the present study examined the function of exosomes secreted by HTR‑8/SVneo cells transfected with miR‑302a vectors. Compared with the negative control vector group, miR‑302a expression was markedly increased in exosomes in the miR‑302a overexpression group. Additionally, exosomes with miR‑302a overexpression had repressed HUVEC invasion and ring formation. The luciferase reporter assay indicated that VEGFA was a direct target of miR‑302a, and miR‑302a expression was negatively correlated with VEGFA expression. In conclusion, the present results demonstrated that upregulation of miR‑302a may promote HTR‑8/SVneo cell proliferation, migration and invasion, and repress angiogenesis by targeting VEGFA, indicating that miR‑302a may be a potential target for the development of PE therapies.
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Affiliation(s)
- Maoqin Wu
- Department of Obstetrics, Jinan City People's Hospital, Jinan, Shandong 271199, P.R. China
| | - Yongqiang Zhao
- Department of Obstetrics and Gynecology, Laigang Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 271126, P.R. China
| | - Lun Li
- Department of Obstetrics, Jinan City People's Hospital, Jinan, Shandong 271199, P.R. China
| | - Gang Wang
- Department of Obstetrics, Shandong Provincial Western Hospital, Shandong Provincial ENT Hospital, Jinan, Shandong 250000, P.R. China
| | - Lin Xing
- Department of Obstetrics and Gynecology, Jinan Fourth People Hospital, Jinan, Shandong 250031, P.R. China
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13
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Jung YD, Park SK, Kang D, Hwang S, Kang MH, Hong SW, Moon JH, Shin JS, Jin DH, You D, Lee JY, Park YY, Hwang JJ, Kim CS, Suh N. Epigenetic regulation of miR-29a/miR-30c/DNMT3A axis controls SOD2 and mitochondrial oxidative stress in human mesenchymal stem cells. Redox Biol 2020; 37:101716. [PMID: 32961441 PMCID: PMC7509080 DOI: 10.1016/j.redox.2020.101716] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/19/2020] [Accepted: 09/07/2020] [Indexed: 02/06/2023] Open
Abstract
The use of human mesenchymal stem cells (hMSCs) in clinical applications requires large-scale cell expansion prior to administration. However, the prolonged culture of hMSCs results in cellular senescence, impairing their proliferation and therapeutic potentials. To understand the role of microRNAs (miRNAs) in regulating cellular senescence in hMSCs, we globally depleted miRNAs by silencing the DiGeorge syndrome critical region 8 (DGCR8) gene, an essential component of miRNA biogenesis. DGCR8 knockdown hMSCs exhibited severe proliferation defects and senescence-associated alterations, including increased levels of reactive oxygen species (ROS). Transcriptomic analysis revealed that the antioxidant gene superoxide dismutase 2 (SOD2) was significantly downregulated in DGCR8 knockdown hMSCs. Moreover, we found that DGCR8 silencing in hMSCs resulted in hypermethylation in CpG islands upstream of SOD2. 5-aza-2'-deoxycytidine treatment restored SOD2 expression and ROS levels. We also found that these effects were dependent on the epigenetic regulator DNA methyltransferase 3 alpha (DNMT3A). Using computational and experimental approaches, we demonstrated that DNMT3A expression was regulated by miR-29a-3p and miR-30c-5p. Overexpression of miR-29a-3p and/or miR-30c-5p reduced ROS levels in DGCR8 knockdown hMSCs and rescued proliferation defects, mitochondrial dysfunction, and premature senescence. Our findings provide novel insights into hMSCs senescence regulation by the miR-29a-3p/miR-30c-5p/DNMT3A/SOD2 axis.
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Affiliation(s)
- Yi-Deun Jung
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea; Personalized Genomic Medicine Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea
| | - Seul-Ki Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea; Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Republic of Korea; Department of Functional Genomics, KRIBB School of Bioscience, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Dayeon Kang
- Department of Pharmaceutical Engineering, College of Medical Sciences, Soon Chun Hyang University, Asan, 31538, Republic of Korea
| | - Supyong Hwang
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Myoung-Hee Kang
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Seung-Woo Hong
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Jai-Hee Moon
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Jae-Sik Shin
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Dong-Hoon Jin
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Dalsan You
- Department of Urology, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Joo-Yong Lee
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Yun-Yong Park
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Jung Jin Hwang
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, 05505, Republic of Korea
| | - Choung Soo Kim
- Department of Urology, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea
| | - Nayoung Suh
- Department of Pharmaceutical Engineering, College of Medical Sciences, Soon Chun Hyang University, Asan, 31538, Republic of Korea.
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14
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Mas-Bargues C, Sanz-Ros J, Román-Domínguez A, Gimeno-Mallench L, Inglés M, Viña J, Borrás C. Extracellular Vesicles from Healthy Cells Improves Cell Function and Stemness in Premature Senescent Stem Cells by miR-302b and HIF-1α Activation. Biomolecules 2020; 10:biom10060957. [PMID: 32630449 PMCID: PMC7357081 DOI: 10.3390/biom10060957] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/21/2020] [Accepted: 06/22/2020] [Indexed: 12/14/2022] Open
Abstract
Aging is accompanied by the accumulation of senescent cells that alter intercellular communication, thereby impairing tissue homeostasis and reducing organ regenerative potential. Recently, the administration of mesenchymal stem cells (MSC)-derived extracellular vesicles has proven to be more effective and less challenging than current stem cell-based therapies. Extracellular vesicles (EVs) contain a cell-specific cargo of proteins, lipids and nucleic acids that are released and taken up by probably all cell types, thereby inducing functional changes via the horizontal transfer of their cargo. Here, we describe the beneficial properties of extracellular vesicles derived from non-senescent MSC, cultured in a low physiological oxygen tension (3%) microenvironment into prematurely senescent MSC, cultured in a hyperoxic ambient (usual oxygen culture conditions, i.e., 21%). We observed that senescent MCS, treated with EVs from non-senescent MCS, showed reduced SA-β-galactosidase activity levels and pluripotency factor (OCT4, SOX2, KLF4 and cMYC, or OSKM) overexpression and increased glycolysis, as well as reduced oxidative phosphorylation (OXPHOS). Moreover, these EVs’ cargo induced the upregulation of miR-302b and HIF-1α levels in the target cells. We propose that miR-302b triggered HIF-1α upregulation, which in turn activated different pathways to delay premature senescence, improve stemness and switch energetic metabolism towards glycolysis. Taken together, we suggest that EVs could be a powerful tool to restore altered intercellular communication and improve stem cell function and stemness, thus delaying stem cell exhaustion in aging.
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Affiliation(s)
- Cristina Mas-Bargues
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
| | - Jorge Sanz-Ros
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
| | - Aurora Román-Domínguez
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
| | - Lucia Gimeno-Mallench
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
| | - Marta Inglés
- Freshage Research Group, Department Physiotherapy, Faculty of Physiotherapy, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain;
| | - José Viña
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
| | - Consuelo Borrás
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES-ISCIII, INCLIVA, 46010 Valencia, Spain; (C.M.-B.); (J.S.-R.); (A.R.-D.); (L.G.-M.); (J.V.)
- Correspondence:
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15
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Seo Y, Shin TH, Kim HS. Current Strategies to Enhance Adipose Stem Cell Function: An Update. Int J Mol Sci 2019; 20:ijms20153827. [PMID: 31387282 PMCID: PMC6696067 DOI: 10.3390/ijms20153827] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) emerged as a promising therapeutic tool targeting a variety of inflammatory disorders due to their multiple remarkable properties, such as superior immunomodulatory function and tissue-regenerative capacity. Although bone marrow (BM) is a dominant source for adult MSCs, increasing evidence suggests that adipose tissue-derived stem cells (ASCs), which can be easily obtained at a relatively high yield, have potent therapeutic advantages comparable with BM-MSCs. Despite its outstanding benefits in pre-clinical settings, the practical efficacy of ASCs remains controversial since clinical trials with ASC application often resulted in unsatisfactory outcomes. To overcome this challenge, scientists established several strategies to generate highly functional ASCs beyond the naïve cells, including (1) pre-conditioning of ASCs with various stimulants such as inflammatory agents, (2) genetic manipulation of ASCs and (3) modification of culture conditions with three-dimensional (3D) aggregate formation and hypoxic culture. Also, exosomes and other extracellular vesicles secreted from ASCs can be applied directly to recapitulate the beneficial performance of ASCs. This review summarizes the current strategies to improve the therapeutic features of ASCs for successful clinical implementation.
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Affiliation(s)
- Yoojin Seo
- Dental and Life Science Institute, Pusan National University, Yangsan 50612, Korea
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea
| | - Tae-Hoon Shin
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Hyung-Sik Kim
- Dental and Life Science Institute, Pusan National University, Yangsan 50612, Korea.
- Department of Life Science in Dentistry, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
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16
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Das MK, Evensen HSF, Furu K, Haugen TB. miRNA-302s may act as oncogenes in human testicular germ cell tumours. Sci Rep 2019; 9:9189. [PMID: 31235829 PMCID: PMC6591358 DOI: 10.1038/s41598-019-45573-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 06/10/2019] [Indexed: 12/19/2022] Open
Abstract
Testicular germ cell tumour (TGCT) represents the most common malignancy in young men in large parts of the world, but the aetiology is yet unclear. Multiple TGCT susceptibility loci have been identified, and we have shown that one of these, SPRY4, may act as a TGCT oncogene. Furthermore, many of the loci are in non-coding regions of the genome. miRNAs, a class of non-coding RNAs may play a crucial role in cell proliferation, differentiation, and apoptosis, and alteration in their expression may lead to oncogenesis. Differential expression of miRNAs in TGCT and normal testis has been reported in previous studies. In this study, we used qPCR to analyse, in normal and malignant testis tissue, the expression of the ten miRNAs that we had previously identified by sequencing to be the most upregulated in TGCT. We found high expression of these miRNAs also by qPCR analysis. The levels of miR-302a-3p, miR-302b-3p, and miR-302c-3p were downregulated after treatment of the TGCT cell lines NT2-D1 and 833 K with the chemotherapy drug cisplatin. By using miRNA inhibitor-mediated transient transfection, we inhibited the expression of the three members of miR-302 family (miR-302s). Inhibition of miR-302s resulted in a decreased cell proliferation in NT2-D1 cells, but not in 833 K cells. In both cell lines, inhibition of miR-302s resulted in decreased expression of SPRY4, which we have previously shown to regulate MAPK/ERK and PI3K/Akt signalling pathways in these cells. Inhibition of miR-302b-3p and miR-302c-3p decreased phosphorylation of ERK1/2, whereas inhibition of miR-302a-3p and miR-302b-3p led to decreased expression of the apoptosis inhibitor, survivin. Our findings suggest that miR-302s act as TGCT oncogenes by inducing the expression of SPRY4 and activating MAPK/ERK pathway while inhibiting apoptosis via increased survivin expression.
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Affiliation(s)
- Mrinal K Das
- Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway.
| | - Herman S F Evensen
- Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway
| | - Kari Furu
- Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway.,Cancer Registry, Oslo, Norway
| | - Trine B Haugen
- Faculty of Health Sciences, OsloMet - Oslo Metropolitan University, Oslo, Norway
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17
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Li C, Wang Q, Gu X, Kang Y, Zhang Y, Hu Y, Li T, Jin H, Deng G, Wang Q. Porous Se@SiO 2 nanocomposite promotes migration and osteogenic differentiation of rat bone marrow mesenchymal stem cell to accelerate bone fracture healing in a rat model. Int J Nanomedicine 2019; 14:3845-3860. [PMID: 31213805 PMCID: PMC6539174 DOI: 10.2147/ijn.s202741] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 04/14/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Delay or failure of bone union is a significant clinical challenge all over the world, and it has been reported that bone marrow mesenchymal stem cells (BMSCs) offer a promising approach to accelerate bone fracture healing. Se can modulate the proliferation and differentiation of BMSCs. Se-treatment enhances the osteoblastic differentiation of BMSCs and inhibiting the differentiation and formation of mature osteoclasts. The purpose of this study was to assess the effects of porous Se@SiO2 nanocomposite on bone regeneration and the underlying biological mechanisms. Methods: We oxidized Se2- to develop Se quantum dots, then we used the Se quantum dots to form a solid Se@SiO2 nanocomposite which was then coated with polyvinylpyrrolidone (PVP) and etched in hot water to synthesize porous Se@SiO2 nanocomposite. We used XRD pattern to assess the phase structure of the solid Se@SiO2 nanocomposite. The morphology of porous Se@SiO2 nanocomposite were evaluated by scanning electron microscope (SEM) and the biocompatibility of porous Se@SiO2 nanocomposite were investigated by cell counting kit-8 (CCK-8) assays. Then, a release assay was also performed. We used a Transwell assay to determine cell mobility in response to the porous Se@SiO2 nanocomposite. For in vitro experiments, BMSCs were divided into four groups to detect reactive oxygen species (ROS) generation, cell apoptosis, alkaline phosphatase activity, calcium deposition, gene activation and protein expression. For in vivo experiments, femur fracture model of rats was constructed to assess the osteogenic effects of porous Se@SiO2 nanocomposite. Results: In vitro, intervention with porous Se@SiO2 nanocomposite can promote migration and osteogenic differentiation of BMSCs, and protect BMSCs against H2O2-induced inhibition of osteogenic differentiation. In vivo, we demonstrated that the porous Se@SiO2 nanocomposite accelerated bone fracture healing using a rat femur fracture model. Conclusion: Porous Se@SiO2 nanocomposite promotes migration and osteogenesis differentiation of rat BMSCs and accelerates bone fracture healing, and porous Se@SiO2 nanocomposite may provide clinic benefit for bone tissue engineering.
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Affiliation(s)
- Chunlin Li
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Qi Wang
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China.,Trauma Center, Shanghai General Hospital of Nanjing Medical University, Shanghai 200080, People's Republic of China
| | - Xiaohua Gu
- Department of Orthopedics, Shanghai Seventh People's Hospital, Shanghai, 200137, People's Republic of China
| | - Yingjie Kang
- Department of Radiology, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Yongxing Zhang
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Yangyang Hu
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Taixi Li
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Hansong Jin
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Guoying Deng
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
| | - Qiugen Wang
- Trauma Center, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 201620, People's Republic of China
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18
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Chen X, Wu S, Tang L, Ma L, Wang F, Feng H, Meng J, Han Z. Mesenchymal stem cells overexpressing heme oxygenase-1 ameliorate lipopolysaccharide-induced acute lung injury in rats. J Cell Physiol 2018; 234:7301-7319. [PMID: 30362554 DOI: 10.1002/jcp.27488] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Accepted: 09/06/2018] [Indexed: 12/18/2022]
Abstract
Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are common and potentially lethal clinical syndromes characterized by acute respiratory failure resulting from excessive pulmonary inflammation, noncardiogenic pulmonary edema, and alveolar-capillary barrier disruption. At present, there is no effective and specific therapy for ALI/ARDS. Mesenchymal stem cells (MSCs) have well-known therapeutic potential in patients with ALI/ARDS. Heme oxygenase-1 (HO-1), a cytoprotective enzyme, possesses antioxidative, anti-inflammatory, and antiapoptotic effects. Thus, a combination of MSC transplantation with HO-1 delivery may have an additional protective effect against ALI/ARDS. This study investigated the effect of HO-1-modified bone-marrow-derived MSCs (MSCs-HO-1) on lipopolysaccharide (LPS)-induced ALI and its underlying mechanisms. We established MSCs-HO-1 through lentiviral transduction. The ALI rat model was established by successive LPS inhalations following injection with MSCs-HO-1. The survival rate, histological changes in the lungs, total protein concentration and neutrophil counts in bronchoalveolar lavage fluid, lung wet/dry weight ratio, cytokine levels in serum and lungs, nuclear transcription factor-κB activity, and protein expression of Toll-like receptor 4 signaling adaptors were examined. Furthermore, the cell viability, apoptosis, and paracrine activity of MSCs-HO-1 were examined under inflammatory stimuli in vitro. MSCs-HO-1 injection improved these parameters compared with primary unmodified MSCs. Moreover, MSCs-HO-1 had superior prosurvival and antiapoptotic properties and enhanced paracrine functions in vitro. Therefore, MSCs-HO-1 exert an enhanced protective effect to alleviate LPS-induced ALI in rats, and the mechanisms may be partially associated with superior prosurvival, antiapoptosis, and enhanced paracrine functions of MSCs-HO-1. These findings provide a novel insight into MSC-based therapeutic strategies for treating ALI/ARDS.
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Affiliation(s)
- Xuxin Chen
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
| | - Shanshan Wu
- Department of Radiation Oncology, Navy General Hospital of the PLA, Beijing, China
| | - Lu Tang
- Department of Neurology, The First Hospital of Changsha, Changsha, China
| | - Lei Ma
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
| | - Fan Wang
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
| | - Huasong Feng
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
| | - Jiguang Meng
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
| | - Zhihai Han
- Department of Respiratory Medicine, Navy General Hospital of the PLA, Beijing, China
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19
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Lian WS, Ko JY, Wu RW, Sun YC, Chen YS, Wu SL, Weng LH, Jahr H, Wang FS. MicroRNA-128a represses chondrocyte autophagy and exacerbates knee osteoarthritis by disrupting Atg12. Cell Death Dis 2018; 9:919. [PMID: 30206206 PMCID: PMC6134128 DOI: 10.1038/s41419-018-0994-y] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/20/2018] [Accepted: 08/23/2018] [Indexed: 12/20/2022]
Abstract
Chondrocyte loss is a prominent feature of osteoarthritis (OA). Autophagy is indispensable in maintaining the metabolic activities of cells exposed to deleterious stress. The contribution of microRNA signaling to chondrocyte autophagy in OA development remains elusive. We uncovered an association between poor autophagy and increased miR-128a expressions in articular chondrocytes of patients with end-stage knee OA and in a rat anterior cruciate ligament transection (ACLT) model for OA development. Cartilage matrix degradation and severe OA histopathology was evident upon forced miR-128a expression within the articular compartment. Intra-articular injections with miR-128a antisense oligonucleotide stabilized chondrocyte autophagy and slowed ACLT-mediated articular tissue destruction, including cartilage erosion, synovitis, osteophyte formation, and subchondral plate damage. In vitro, miR-128 signaling hindered Atg12 expression, LC3-II conversion, and autophagic puncta formation through targeting the 3′-untranslated region of Atg12. It increased apoptotic programs, diminishing cartilage formation capacity of articular chondrocytes. Inactivating histone methyltransferase EZH2 reduced methyl histone H3K27 enrichment in the miR-128a promoter and upregulated miR-128a transcription in inflamed chondrocytes. Taken together, miR-128a-induced Atg12 loss repressed chondrocyte autophagy to aggravate OA progression. EZH2 inactivation caused H3K27 hypomethylation to accelerate miR-128a actions. Interruption of miR-128a signaling attenuated chondrocyte dysfunction and delayed OA development. Our data provide new insights into how miR-128a signaling affects chondrocyte survival and articular cartilage anabolism and highlight the potential of miR-128a targeting therapy to alleviate knee OA.
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Affiliation(s)
- Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Re-Weng Wu
- Department of Orthopedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yi-Chih Sun
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Shin-Long Wu
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Lin-Hsiu Weng
- Department of Orthopedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, Aachen, Germany. .,Department of Orthopaedics, University Hospital RWTH Aachen, Aachen, Germany.
| | - Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. .,Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. .,Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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20
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López-Beas J, Capilla-González V, Aguilera Y, Mellado N, Lachaud CC, Martín F, Smani T, Soria B, Hmadcha A. miR-7 Modulates hESC Differentiation into Insulin-Producing Beta-like Cells and Contributes to Cell Maturation. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 12:463-477. [PMID: 30195784 PMCID: PMC6070677 DOI: 10.1016/j.omtn.2018.06.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 06/08/2018] [Accepted: 06/09/2018] [Indexed: 12/19/2022]
Abstract
Human pluripotent stem cells retain the extraordinary capacity to differentiate into pancreatic beta cells. For this particular lineage, more effort is still required to stress the importance of developing an efficient, reproducible, easy, and cost-effective differentiation protocol to obtain more mature, homogeneous, and functional insulin-secreting cells. In addition, microRNAs (miRNAs) have emerged as a class of small non-coding RNAs that regulate many cellular processes, including pancreatic differentiation. Some miRNAs are known to be preferentially expressed in islets. Of note, miR-375 and miR-7 are two of the most abundant pancreatic miRNAs, and they are necessary for proper pancreatic islet development. Here we provide new insight into specific miRNAs involved in pancreatic differentiation. We found that miR-7 is differentially expressed during the differentiation of human embryonic stem cells (hESCs) into a beta cell-like phenotype and that its modulation plays an important role in generating mature pancreatic beta cells. This strategy may be exploited to optimize the potential for in vitro differentiation of hESCs into insulin-producing beta-like cells for use in preclinical studies and future clinical applications as well as the prospective uses of miRNAs to improve this process.
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Affiliation(s)
- Javier López-Beas
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain
| | - Vivian Capilla-González
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain
| | - Yolanda Aguilera
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain
| | - Nuria Mellado
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain
| | - Christian C Lachaud
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain
| | - Franz Martín
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain; Centro de Investigación Biomédica en Red sobre Diabetes y Enfermedades Metabólicas-CIBERDEM, Madrid, Spain
| | - Tarik Smani
- Instituto de Biomedicina de Sevilla-IBiS, Universidad de Sevilla/HUVR/Junta de Andalucía/CSIC, Sevilla, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Cardiovaculares-CIBERCV, Madrid, Spain
| | - Bernat Soria
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain; Centro de Investigación Biomédica en Red sobre Diabetes y Enfermedades Metabólicas-CIBERDEM, Madrid, Spain
| | - Abdelkrim Hmadcha
- Andalusian Center for Molecular Biology and Regenerative Medicine (CABIMER), University of Pablo de Olavide-University of Seville-CSIC, Sevilla, Spain; Centro de Investigación Biomédica en Red sobre Diabetes y Enfermedades Metabólicas-CIBERDEM, Madrid, Spain.
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21
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c-Jun-mediated microRNA-302d-3p induces RPE dedifferentiation by targeting p21 Waf1/Cip1. Cell Death Dis 2018; 9:451. [PMID: 29670082 PMCID: PMC5906557 DOI: 10.1038/s41419-018-0481-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/01/2018] [Accepted: 03/09/2018] [Indexed: 11/08/2022]
Abstract
Dedifferentiation of retinal pigment epithelium (RPE) cells and choroidal neovascularization (CNV) contributes to the pathogenesis of age-related macular degeneration (AMD). MicroRNAs (miRNAs) have crucial roles in AMD onset and progression. We thus aim to investigate the effects of miRNAs on RPE dedifferentiation and endothelium cell (EC) behavior, and analyze its downstream pathways. We have previously identified miR-302d-3p as the most downregulated miRNA signature along with RPE differentiation. Herein, in vitro study supported that miR-302d-3p induces RPE dedifferentiation typified by reduction of RPE characteristic markers, interrupts its phagocytosis, and promotes its migration, proliferation, and cell-cycle progression. c-Jun was identified as a potential upstream transcript factor for MIR302D, which might modulate RPE function by regulating miR-302d-3p expression. P21Waf1/Cip1, a cyclin-dependent kinase inhibitor encoded by the CDKN1A gene, was identified as a downstream target of miR-302d-3p. Our data suggested that p21Waf1/Cip1 could promote RPE differentiation, and inhibit its proliferation, migration, and cell-cycle progression. We also demonstrated that miR-302d-3p suppresses RPE differentiation through directly targeting p21Waf1/Cip1. In addition, the miR-302d-3p/CDKN1A axis was also involved in regulating tube formation of ECs, indicating its potential involvement in CNV formation. Taken together, our study implies that miR-302d-3p, regulated by c-Jun, contributes to the pathogenesis of both atrophic and exudative AMD. MiR-302d-3p promotes RPE dedifferentiation, migration, proliferation and cell-cycle progression, inhibits RPE phagocytosis, and induces abnormal EC behavior by targeting p21Waf1/Cip1. Pharmacological miR-302d-3p inhibitors are prospective therapeutic options for prevention and treatment of AMD.
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22
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MiR200 and miR302: Two Big Families Influencing Stem Cell Behavior. Molecules 2018; 23:molecules23020282. [PMID: 29385685 PMCID: PMC6017081 DOI: 10.3390/molecules23020282] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 01/25/2018] [Accepted: 01/27/2018] [Indexed: 02/08/2023] Open
Abstract
In this review, we described different factors that modulate pluripotency in stem cells, in particular we aimed at following the steps of two large families of miRNAs: the miR-200 family and the miR-302 family. We analyzed some factors tuning stem cells behavior as TGF-β, which plays a pivotal role in pluripotency inhibition together with specific miRNAs, reactive oxygen species (ROS), but also hypoxia, and physical stimuli, such as ad hoc conveyed electromagnetic fields. TGF-β plays a crucial role in the suppression of pluripotency thus influencing the achievement of a specific phenotype. ROS concentration can modulate TGF-β activation that in turns down regulates miR-200 and miR-302. These two miRNAs are usually requested to maintain pluripotency, while they are down-regulated during the acquirement of a specific cellular phenotype. Moreover, also physical stimuli, such as extremely-low frequency electromagnetic fields or high-frequency electromagnetic fields conveyed with a radioelectric asymmetric conveyer (REAC), and hypoxia can deeply influence stem cell behavior by inducing the appearance of specific phenotypes, as well as a direct reprogramming of somatic cells. Unraveling the molecular mechanisms underlying the complex interplay between externally applied stimuli and epigenetic events could disclose novel target molecules to commit stem cell fate.
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23
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Zhang Y, Xiao F, Zhong C, Zeng M, Zou L. Retracted Article: Cd induces G2/M cell cycle arrest by up-regulating miR-133b via directly targeting PPP2R2D in L02 hepatocytes. Metallomics 2018; 10:1510-1523. [DOI: 10.1039/c8mt00243f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study could provide a novel epigenetic mechanism for Cd-induced acute hepatotoxicity and it would offer new targets for its intervention.
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Affiliation(s)
- Yujing Zhang
- Hunan Normal University School of Medicine
- Changsha 410013
- P. R. China
- Central South University Xiangya School of Public Health
- Changsha 410078
| | - Fang Xiao
- Central South University Xiangya School of Public Health
- Changsha 410078
- P. R. China
| | - Caigao Zhong
- Central South University Xiangya School of Public Health
- Changsha 410078
- P. R. China
| | - Ming Zeng
- Central South University Xiangya School of Public Health
- Changsha 410078
- P. R. China
| | - Lianhong Zou
- Hunan Normal University School of Medicine
- Changsha 410013
- P. R. China
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24
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Promotion of Cell-Based Therapy: Special Focus on the Cooperation of Mesenchymal Stem Cell Therapy and Gene Therapy for Clinical Trial Studies. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1119:103-118. [PMID: 30155859 DOI: 10.1007/5584_2018_256] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Regenerative medicine (RM) is a promising new field of medicine that has mobilized several new tools to repair or replace lost or damaged cells or tissues by stimulating natural regenerative mechanisms nearby cell and tissue-based therapy approaches. However, mesenchymal stem cell (MSC) based therapy has been shown to be safe and effective to a certain degree in multiple clinical trial studies (CTSs) of several diseases, in most MSC CTSs the efficacy of treatment has been reported low. Therefore, researchers have focused on efficacy enhancing of MSC to improve migratory and homing, survival, stemness, differentiation and other therapeutic applicable properties by using different approaches. Gene therapy is one of the experimental technique tools that uses genes to change cells for therapeutic and investigation purposes. In this study has been focused on genetically modified MSCs for use in RM with an emphasis on CTSs. We highlight the basic concept of genetic modifications and also discuss recent clinical studies aspects. Recently reviewed studies show that MSC therapy with assistant gene therapy can be used in cancer therapy, heart diseases, Fanconi anemia and several other diseases.
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25
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Inhibition of miR-302 Suppresses Hypoxia-Reoxygenation-Induced H9c2 Cardiomyocyte Death by Regulating Mcl-1 Expression. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7968905. [PMID: 28491238 PMCID: PMC5405583 DOI: 10.1155/2017/7968905] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/30/2017] [Accepted: 03/07/2017] [Indexed: 11/18/2022]
Abstract
MicroRNAs play important roles in cell proliferation, differentiation, and apoptosis, and their expression influences cardiomyocyte apoptosis resulting from ischemia-induced myocardial infarction. Here, we determined the role of miR expression in cardiomyocyte apoptosis during hypoxia and reoxygenation. The rat cardiomyocyte cell line H9c2 was incubated for 3 h in normal or hypoxia medium, followed by reoxygenation for 24 h and transfection with a miR-302 mimic or antagomir. The effect of miR-302 on myeloid leukemia cell-differentiation protein-1 (Mcl-1) expression was determined by western blot, real-time polymerase chain reaction, and luciferase reporter assays, with cell viability assays. We observed that miR-302 expression was elevated by hypoxia/reoxygenation injury and increased further or decreased by transfection of the miR-302 mimic or miR-302 antagomir, respectively. Additionally, elevated miR-302 levels increased apoptosis-related protein levels and cardiomyocyte apoptosis, and luciferase reporter assays revealed miR-302 binding to the Mcl-1 mRNA 3' untranslated region. Our findings suggested that miR-302 overexpression aggravated hypoxia/reoxygenation-mediated cardiomyocyte apoptosis by inhibiting antiapoptotic Mcl-1 expression, thereby activating proapoptotic molecules. Furthermore, results indicating cardiomyocyte rescue from hypoxia/reoxygenation injury following treatment with miR-302 antagomir suggested that miR-302 inhibition might constitute a therapeutic strategy for protection against cardiomyocyte apoptosis during hypoxia/reoxygenation injury.
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26
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MicroRNA signatures predict prognosis of patients with glioblastoma multiforme through the Cancer Genome Atlas. Oncotarget 2017; 8:58386-58393. [PMID: 28938564 PMCID: PMC5601660 DOI: 10.18632/oncotarget.16878] [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: 02/07/2017] [Accepted: 03/14/2017] [Indexed: 02/02/2023] Open
Abstract
MicroRNAs (miRNAs) play major roles in various biological processes and have been implicated in the pathogenesis and malignant progression of glioblastoma multiforme (GBM). The aim of this study was to assess the predictive values of miRNAs for overall survival (OS) of patients with GBM. MiRNA expression profiles and clinical information of 563 GBM patients were obtained from the Cancer Genome Atlas. The most significantly altered miRNAs were identified and miRNA expression profiles were performed, through principal component analysis, the least absolute shrinkage and selection operator method. The survival analysis was performed using the Cox regression models. Additionally, receiver operating characteristic (ROC) analysis was used to assess the performance of survival prediction. We used the bioinformatics tools to establish the miRNA signature for biological relevance assessment. A linear prognostic model of three miRNAs was developed and the patients were divided into high risk and low risk groups based this model. The area under the ROC curve (AUC) for the three miRNA signature predicting 5-year survival was 0.894 (95%CI, 0.789-1.000) in the testing set and0.841 (95%CI, 0.689-0.993) in all GBM patients. High risk patients had significantly shorter OS than patients with low risk (P< 0.001). The results from this study support a three miRNA signature for outcome prediction of GBM. These results provided a new prospect for prognostic biomarker of GBM.
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27
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Chen YL, Xu QP, Guo F, Guan WH. MicroRNA-302d downregulates TGFBR2 expression and promotes hepatocellular carcinoma growth and invasion. Exp Ther Med 2016; 13:681-687. [PMID: 28352351 DOI: 10.3892/etm.2016.3970] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 09/22/2016] [Indexed: 12/11/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-associated mortality in China and the third leading cause worldwide. A number of microRNAs (miRNAs) have been implicated in cell cycle progression, growth, apoptosis, angiogenesis and metastasis in HCC. In the present study, reverse transcription-quantitative polymerase chain reaction analysis was used to detect the levels of miR-302d expression in the tissues of 30 patients with HCC. Cell cycle, growth, apoptosis and migration were analyzed using a cell counting kit, flow cytometry and a Transwell migration assay. Dual-luciferase reporter assays and western blotting were also used to analyze the expression levels of transforming growth factor beta type II receptor (TGFBR2) in HCC cells. The present study evaluated the role of miR-302d in the development and progression of HCC. Abnormally high expression of miR-302d was observed in 80% of HCC specimens. Moreover, patients with lower levels of miR-302d expression experienced a longer survival time than those with higher levels of miR-302d expression. It was demonstrated that miR-302d promoted HCC cell growth and migration, suppressed cell apoptosis and affected cell cycle distribution in vitro, and augmented tumorigenicity in vivo. Furthermore, TGFBR2, which is a tumor suppressor, was confirmed as a target of miR-302d in HCC cells. Dual-luciferase reporter assays indicated that TGFBR2 expression was negatively regulated by miR-302d. Taken together, the results of the present study suggest that miR-302d may serve as a valuable tool for predicting the prognosis of patients with HCC.
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Affiliation(s)
- Yue-Liang Chen
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Qiu-Ping Xu
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Feng Guo
- Department of Critical Care Medicine, Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, Zhejiang 310016, P.R. China
| | - Wen-Hua Guan
- Department of Infectious Diseases, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
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28
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Li HH, Lin SL, Huang CN, Lu FJ, Chiu PY, Huang WN, Lai TJ, Lin CL. miR-302 Attenuates Amyloid-β-Induced Neurotoxicity through Activation of Akt Signaling. J Alzheimers Dis 2016; 50:1083-98. [PMID: 26890744 DOI: 10.3233/jad-150741] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Deficiency of insulin signaling has been linked to diabetes and ageing-related neurodegenerative diseases such as Alzheimer's disease (AD). In this regard, brains exhibit defective insulin receptor substrate-1 (IRS-1) and hence result in alteration of insulin signaling in progression of AD, the most common cause of dementia. Consequently, dysregulation of insulin signaling plays an important role in amyloid-β (Aβ)-induced neurotoxicity. As the derivation of induced pluripotent stem cells (iPSC) involves cell reprogramming, it may provide a means for regaining the control of ageing-associated dysfunction and neurodegeneration via affecting insulin-related signaling. To this, we found that an embryonic stem cell (ESC)-specific microRNA, miR-302, silences phosphatase and tensin homolog (PTEN) to activate Akt signaling, which subsequently stimulates nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) elevation and hence inhibits Aβ-induced neurotoxicity. miR-302 is predominantly expressed in iPSCs and is known to regulate several important biological processes of anti-oxidative stress, anti-apoptosis, and anti-aging through activating Akt signaling. In addition, we also found that miR-302-mediated Akt signaling further stimulates Nanog expression to suppress Aβ-induced p-Ser307 IRS-1 expression and thus enhances tyrosine phosphorylation and p-Ser 473-Akt/p-Ser 9-GSK3β formation. Furthermore, our in vivo studies revealed that the mRNA expression levels of both Nanog and miR-302-encoding LARP7 genes were significantly reduced in AD patients' blood cells, providing a novel diagnosis marker for AD. Taken together, our findings demonstrated that miR-302 is able to inhibit Aβ-induced cytotoxicity via activating Akt signaling to upregulate Nrf2 and Nanog expressions, leading to a marked restoration of insulin signaling in AD neurons.
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Affiliation(s)
- Hsin-Hua Li
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Shi-Lung Lin
- Division of Regenerative Medicine, WJWU & LYNN Institute for Stem Cell Research, Santa Fe Springs, CA, USA
| | - Chien-Ning Huang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Fung-Jou Lu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Pai-Yi Chiu
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Neurology, Show Chwan Memorial Hospital, Changhua, Taiwan
| | - Wen-Nung Huang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Te-Jen Lai
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Psychiatry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chih-Li Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
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29
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Agrawal R, Dale TP, Al-Zubaidi MA, Benny Malgulwar P, Forsyth NR, Kulshreshtha R. Pluripotent and Multipotent Stem Cells Display Distinct Hypoxic miRNA Expression Profiles. PLoS One 2016; 11:e0164976. [PMID: 27783707 PMCID: PMC5081191 DOI: 10.1371/journal.pone.0164976] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 10/04/2016] [Indexed: 12/20/2022] Open
Abstract
MicroRNAs are reported to have a crucial role in the regulation of self-renewal and differentiation of stem cells. Hypoxia has been identified as a key biophysical element of the stem cell culture milieu however, the link between hypoxia and miRNA expression in stem cells remains poorly understood. We therefore explored miRNA expression in hypoxic human embryonic and mesenchymal stem cells (hESCs and hMSCs). A total of 50 and 76 miRNAs were differentially regulated by hypoxia (2% O2) in hESCs and hMSCs, respectively, with a negligible overlap of only three miRNAs. We found coordinate regulation of precursor and mature miRNAs under hypoxia suggesting their regulation mainly at transcriptional level. Hypoxia response elements were located upstream of 97% of upregulated hypoxia regulated miRNAs (HRMs) suggesting hypoxia-inducible-factor (HIF) driven transcription. HIF binding to the candidate cis-elements of specific miRNAs under hypoxia was confirmed by Chromatin immunoprecipitation coupled with qPCR. Role analysis of a subset of upregulated HRMs identified linkage to reported inhibition of differentiation while a downregulated subset of HRMs had a putative role in the promotion of differentiation. MiRNA-target prediction correlation with published hypoxic hESC and hMSC gene expression profiles revealed HRM target genes enriched in the cytokine:cytokine receptor, HIF signalling and pathways in cancer. Overall, our study reveals, novel and distinct hypoxia-driven miRNA signatures in hESCs and hMSCs with the potential for application in optimised culture and differentiation models for both therapeutic application and improved understanding of stem cell biology.
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Affiliation(s)
- Rahul Agrawal
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, India-110016
| | - Tina P. Dale
- Guy Hilton Research Centre, Institute of Science and Technology in Medicine, University of Keele, Thornburrow Drive, Hartshill, Stoke-on-Trent, Staffordshire, ST4 7QB, United Kingdom
| | - Mohammed A. Al-Zubaidi
- Guy Hilton Research Centre, Institute of Science and Technology in Medicine, University of Keele, Thornburrow Drive, Hartshill, Stoke-on-Trent, Staffordshire, ST4 7QB, United Kingdom
- College of Pharmacy, Al-Mustansiriyah University, Baghdad, Iraq
| | - Prit Benny Malgulwar
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India-110029
| | - Nicholas R. Forsyth
- Guy Hilton Research Centre, Institute of Science and Technology in Medicine, University of Keele, Thornburrow Drive, Hartshill, Stoke-on-Trent, Staffordshire, ST4 7QB, United Kingdom
| | - Ritu Kulshreshtha
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, India-110016
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30
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Genetic Engineering of Mesenchymal Stem Cells to Induce Their Migration and Survival. Stem Cells Int 2016; 2016:4956063. [PMID: 27242906 PMCID: PMC4868914 DOI: 10.1155/2016/4956063] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/22/2016] [Accepted: 03/14/2016] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are very attractive for regenerative medicine due to their relatively easy derivation and broad range of differentiation capabilities, either naturally or induced through cell engineering. However, efficient methods of delivery to diseased tissues and the long-term survival of grafted cells still need improvement. Here, we review genetic engineering approaches designed to enhance the migratory capacities of MSCs, as well as extend their survival after transplantation by the modulation of prosurvival approaches, including prevention of senescence and apoptosis. We highlight some of the latest examples that explore these pivotal points, which have great relevance in cell-based therapies.
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31
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Li YP, Wei XC, Li PC, Chen CW, Wang XH, Jiao Q, Wang DM, Wei FY, Zhang JZ, Wei L. The Role of miRNAs in Cartilage Homeostasis. Curr Genomics 2016; 16:393-404. [PMID: 27019614 PMCID: PMC4765526 DOI: 10.2174/1389202916666150817203144] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/18/2015] [Accepted: 06/26/2015] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is an age-related disease with poorly understood pathogenesis. Recent studies have demonstrated that miRNA might play a key role in OA initiation and development. We reviewed recent publications and elucidated the connection between miRNA and OA cartilage anabolic and catabolic signals, including four signaling pathways: TGF-β/Smads and BMPs signaling, associated with cartilage anabolism; and MAPK and NF-KB signaling, associated with cartilage catabolism. We also explored the relationships with MMP, ADAMTS and NOS (NitricOxide Synthases) families, as well as with the catabolic cytokines IL-1 and TNF-α. The potential role of miRNAs in biological processes such as cartilage degeneration, chondrocyte proliferation, and differentiation is discussed. Collective evidence indicates that miRNAs play a critical role in cartilage degeneration. These findings will aid in understanding the molecular network that governs articular cartilage homeostasis and in to elucidate the role of miRNA in the pathogenesis of OA.
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Affiliation(s)
- Yong Ping Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Xiao Chun Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Peng Cu Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Chun Wei Chen
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Xiao Hu Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Qiang Jiao
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Dong Ming Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Fang Yuan Wei
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Jian Zhong Zhang
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Lei Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China;; Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China; ; Department of Orthopaedics, The Warren Alpert Medical School of Brown University/Rhode Island Hospital, 1 Hoppin Street, Providence, RI 02903, USA
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32
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Li HL, Wei JF, Fan LY, Wang SH, Zhu L, Li TP, Lin G, Sun Y, Sun ZJ, Ding J, Liang XL, Li J, Han Q, Zhao RCH. miR-302 regulates pluripotency, teratoma formation and differentiation in stem cells via an AKT1/OCT4-dependent manner. Cell Death Dis 2016; 7:e2078. [PMID: 26821070 PMCID: PMC4816169 DOI: 10.1038/cddis.2015.383] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 10/20/2015] [Accepted: 11/20/2015] [Indexed: 12/12/2022]
Abstract
Pluripotency makes human pluripotent stem cells (hPSCs) promising for regenerative medicine, but the teratoma formation has been considered to be a major obstacle for their clinical applications. Here, we determined that the downregulation of miR-302 suppresses the teratoma formation, hampers the self-renewal and pluripotency, and promotes hPSC differentiation. The underlying mechanism is that the high endogenous expression of miR-302 suppresses the AKT1 expression by directly targeting its 3'UTR and subsequently maintains the pluripotent factor OCT4 at high level. Our findings reveal that miR-302 regulates OCT4 by suppressing AKT1, which provides hPSCs two characteristics related to their potential for clinical applications: the benefit of pluripotency and the hindrance of teratoma formation. More importantly, we demonstrate that miR-302 upregulation cannot lead OCT4 negative human adult mesenchymal stem cells (hMSCs) to acquire the teratoma formation in vivo. Whether miR-302 upregulation can drive hMSCs to acquire a higher differentiation potential is worthy of deep investigation.
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Affiliation(s)
- H-L Li
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - J-F Wei
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China.,Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, China
| | - L-Y Fan
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - S-H Wang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - L Zhu
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
| | - T-P Li
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - G Lin
- Institute of Reproductive and Stem Cell Engineering, Key Laboratory of Stem Cells and Reproductive Engineering, Ministry of Health, Central South University, Changsha, China
| | - Y Sun
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Beijing, China
| | - Z-J Sun
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
| | - J Ding
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Beijing, China
| | - X-L Liang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - J Li
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - Q Han
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China
| | - R-C-H Zhao
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Tissue Engineering Center of Chinese Academy of Medical Sciences, Beijing, China.,Peking Union Medical College Hospital, Beijing, China
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33
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Kim EH, Kim DH, Kim HR, Kim SY, Kim HH, Bang OY. Stroke Serum Priming Modulates Characteristics of Mesenchymal Stromal Cells by Controlling the Expression miRNA-20a. Cell Transplant 2016; 25:1489-99. [PMID: 26762119 DOI: 10.3727/096368916x690430] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Transplantation of mesenchymal stem cells (MSCs) expanded with fetal bovine serum (FBS) has some limitations, including the requirement of a long culture period to obtain a sufficient amount of stem cells. Priming of MSCs with serum from patients with ischemic stroke (stroke serum) increased the proliferation rate and the neurorestorative capacity of MSCs. We hypothesized that this novel priming method increases the proliferation rate of MSCs via the regulation of microRNAs (miRs). Thus, we investigated miR profiling in stroke serum-primed MSCs and tested whether the regulation of certain miRs may affect the proliferation rate of rat MSCs. The proliferation rate of MSCs cultured with stroke serum was higher than that of MSCs cultured with normal serum or FBS. Using miR microarray analysis, we compared the miR expression profiles between MSCs cultured in FBS and in stroke serum. Among miRs associated with cell proliferation, miR-20a was most significantly increased. Similarly, miR-20a was increased in MSCs obtained from the bone marrow of stroke rats compared with MSCs from normal rats. Furthermore, the deregulation of miR-20a by the transfection of MSCs with pre-miR-20a or anti-miR-20a was significantly correlated with the increased proliferation rate of MSCs. The overexpression of miR-20a in MSCs cultured in FBS improved the proliferation rate, while the knockdown of endogenous miR-20a decreased the proliferation rate. In addition, miR-20a promoted proliferation by suppressing the expression of p21 cyclin-dependent kinase inhibitor 1 (CDKN1A). A dual-luciferase reporter assay showed that CDKN1A is a target of miR-20a. Our findings indicate that stroke serum priming upregulated the expression of miR-20a, which promoted MSC proliferation by regulating the cell cycle inhibitor p21 CDKN1A, and suggest the possible roles of priming methods in modulating the characteristics of MSCs by controlling the expression of miR in MSCs.
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Affiliation(s)
- Eun Hee Kim
- Medical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Chen L, Heikkinen L, Emily Knott K, Liang Y, Wong G. Evolutionary conservation and function of the human embryonic stem cell specific miR-302/367 cluster. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2015; 16:83-98. [PMID: 26363379 DOI: 10.1016/j.cbd.2015.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 08/14/2015] [Accepted: 08/19/2015] [Indexed: 01/06/2023]
Abstract
miRNA clusters define a group of related miRNAs closely localized in the genome with an evolution that remains poorly understood. The miR-302/367 cluster represents a single polycistronic transcript that produces five precursor miRNAs. The cluster is highly expressed and essential for maintenance of human embryonic stem cells. We found the cluster to be highly conserved and present in most mammals. In primates, seed sequence and miRNA structure are conserved, but inter-precursor sequences are evolving. Insertions of new miRNAs, deletions of individual miRNAs, and a cluster duplication observed in different species suggest an actively evolving cluster. Core transcriptional machinery consisting of NANOG and OCT-4 transcription factors that define stem cells are present upstream of the miR-302/367 cluster. Interestingly, we found the miR-302/367 cluster flanking region to be enriched as a target site of other miRNAs suggesting a mechanism for feedback control. Analysis of miR-302 and miR-367 targets demonstrated concordance of gene set enrichment groups at high gene ontology levels. This cluster also expresses isomiRs providing another means of establishing sequence diversity. Finally, using three different kidney tumor datasets, we observed consistent expression of miR-302 family members in normal tissue while adjacent tumor tissue showed a significant lack of expression. Clustering expression levels of miR-302 validated target genes showed a significant correlation between miR-302/367 cluster miRNAs and a subset of validated gene targets in healthy and adjacent tumor tissues. Taken together, our data show a highly conserved and still evolving miRNA cluster that may have additional unrecognized functions.
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Affiliation(s)
- Liang Chen
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun 130012, China; A.I. Virtanen Institute, Faculty of Health Sciences, University of Eastern Finland, PL 1627, Kuopio 70211, Finland
| | - Liisa Heikkinen
- University of Jyväskylä, Department of Biological & Environmental Science, P.O. Box 35, FI-40014, University of Jyväskylä, Finland
| | - K Emily Knott
- University of Jyväskylä, Department of Biological & Environmental Science, P.O. Box 35, FI-40014, University of Jyväskylä, Finland
| | - Yanchun Liang
- Key Laboratory of Symbolic Computation and Knowledge Engineering of the Ministry of Education, College of Computer Science and Technology, Jilin University, Changchun 130012, China
| | - Garry Wong
- A.I. Virtanen Institute, Faculty of Health Sciences, University of Eastern Finland, PL 1627, Kuopio 70211, Finland; Faculty of Health Sciences, University of Macau, Taipa, Macau S.A.R., China.
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Gori M, Trombetta M, Santini D, Rainer A. Tissue engineering and microRNAs: future perspectives in regenerative medicine. Expert Opin Biol Ther 2015. [DOI: 10.1517/14712598.2015.1071349] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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