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Singh D, Memari E, He S, Yusefi H, Helfield B. Cardiac gene delivery using ultrasound: State of the field. Mol Ther Methods Clin Dev 2024; 32:101277. [PMID: 38983873 PMCID: PMC11231612 DOI: 10.1016/j.omtm.2024.101277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Over the past two decades, there has been tremendous and exciting progress toward extending the use of medical ultrasound beyond a traditional imaging tool. Ultrasound contrast agents, typically used for improved visualization of blood flow, have been explored as novel non-viral gene delivery vectors for cardiovascular therapy. Given this adaptation to ultrasound contrast-enhancing agents, this presents as an image-guided and site-specific gene delivery technique with potential for multi-gene and repeatable delivery protocols-overcoming some of the limitations of alternative gene therapy approaches. In this review, we provide an overview of the studies to date that employ this technique toward cardiac gene therapy using cardiovascular disease animal models and summarize their key findings.
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Affiliation(s)
- Davindra Singh
- Department of Biology, Concordia University, Montreal, QC, Canada
| | - Elahe Memari
- Department of Physics, Concordia University, Montreal, QC, Canada
| | - Stephanie He
- Department of Biology, Concordia University, Montreal, QC, Canada
| | - Hossein Yusefi
- Department of Physics, Concordia University, Montreal, QC, Canada
| | - Brandon Helfield
- Department of Biology, Concordia University, Montreal, QC, Canada
- Department of Physics, Concordia University, Montreal, QC, Canada
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2
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Soltani L, Mahdavi AH. Role of Signaling Pathways during Cardiomyocyte Differentiation of Mesenchymal Stem Cells. Cardiology 2021; 147:216-224. [PMID: 34864735 DOI: 10.1159/000521313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 11/25/2021] [Indexed: 11/19/2022]
Abstract
Multipotent stem cells, including mesenchymal stem cells (MSCs), represent a promising source to be used by regenerative medicine. They are capable of performing myogenic, chondrogenic, osteogenic and adipogenic differentiation. Also, MSCs are characterized by the expression of multiple surface antigens, but none of them appears to be particularly expressed on MSCs. Moreover, the prospect of monitoring and controlling MSC differentiation is a scientifically crucial regulatory and clinical requirement. Different transcription factors and signaling pathways are involved in cardiomyocyte differentiation. Due to the paucity of studies exclusively focused on cardiomyocyte differentiation of MSCs, present study aims at describing the roles of various signaling pathways (FGF, TGF, Wnt, Notch, etc.) in cardiomyocytes differentiation of MSCs. Understanding the signaling pathways that control the commitment and differentiation of cardiomyocyte cells not only will expand our basic understanding of molecular mechanisms of heart development, but also will enable us to develop therapeutic means of intervention in cardiovascular diseases.
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Affiliation(s)
- Leila Soltani
- Department of Animal Sciences, Faculty of Agriculture and Engineering, Razi University, Kermanshah, Iran
| | - Amir Hossein Mahdavi
- Department of Animal Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
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3
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Liu T, Gonzalez De Los Santos F, Hirsch M, Wu Z, Phan SH. Noncanonical Wnt Signaling Promotes Myofibroblast Differentiation in Pulmonary Fibrosis. Am J Respir Cell Mol Biol 2021; 65:489-499. [PMID: 34107237 PMCID: PMC8641847 DOI: 10.1165/rcmb.2020-0499oc] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 06/08/2021] [Indexed: 11/24/2022] Open
Abstract
The Wnt/β-catenin pathway initiates a signaling cascade that is critical in cell differentiation and the normal development of multiple organ systems. The reactivation of this pathway has been documented in experimental and human idiopathic pulmonary fibrosis, wherein Wnt/β-catenin activation has been implicated in epithelial-cell repair. Furthermore, the canonical ligand Wnt3a is known to induce myofibroblast differentiation; however, the role of noncanonical Wnt ligands remains unclear. This study showed significantly higher levels of Wnt11 expression in cells from both patients with idiopathic pulmonary fibrosis and bleomycin-treated mice, as well as in TGFβ-treated mouse lung fibroblasts. Moreover, Wnt11 induced myofibroblast differentiation as manifested by increased α-SMA (ACTA2) expression, which was similar to that induced by canonical Wnt3a/β-catenin signaling. Further investigation revealed that Wnt11 induction of α-SMA was associated with the activation of JNK (c-Jun N-terminal kinase)/c-Jun signaling and was inhibited by a JNK inhibitor. The potential importance of this signaling pathway was supported by in vivo evidence showing significantly increased levels of Wnt11 and activated JNK in the lungs of mice with bleomycin-induced pulmonary fibrosis. Interestingly, fibroblasts did not express canonical Wnt3a, but treatment of these cells with exogenous Wnt3a induced endogenous Wnt11 and Wnt5a, resulting in repression of the Wnt3a/β-catenin target gene Axin2. These findings suggested that the noncanonical Wnt induction of myofibroblast differentiation mediated by the JNK/c-Jun pathway might play a significant role in pulmonary fibrosis, in addition to or in synergy with canonical Wnt3a/β-catenin signaling. Moreover, Wnt3a activation of noncanonical Wnt signaling might trigger a switch from canonical to noncanonical Wnt signaling to induce myofibroblast differentiation.
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Affiliation(s)
| | | | - Mitchell Hirsch
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Zhe Wu
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan
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Hsueh YC, Hodgkinson CP, Gomez JA. The role of Sfrp and DKK proteins in cardiomyocyte development. Physiol Rep 2021; 9:e14678. [PMID: 33587322 PMCID: PMC7883806 DOI: 10.14814/phy2.14678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/11/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
In this review, we summarize the role of Wnt proteins in cardiomyogenesis. More specifically, we focus on how the development of cardiomyocytes from precursor cells involves a complex interplay between Wnt canonical β-catenin signaling pathways and Wnt noncanonical signaling pathways involving PCP and JNK. We also describe recent literature which suggests that endogenous Wnt inhibitors such as the Sfrp and DKK proteins play important roles in regulating the cardiomyocyte differentiation.
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Affiliation(s)
- Ying-Chang Hsueh
- Mandel Center for Heart and Vascular Research, and the Duke Cardiovascular Research Center, Duke University Medical Center, Durham, NC, USA
| | - Conrad P Hodgkinson
- Mandel Center for Heart and Vascular Research, and the Duke Cardiovascular Research Center, Duke University Medical Center, Durham, NC, USA
| | - Jose A Gomez
- Department of Medicine, Clinical Pharmacology Division, Vanderbilt University Medical Center, Nashville, TN, USA
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Chen C, Lou Y, Li XY, Lv ZT, Zhang LQ, Mao W. Mapping current research and identifying hotspots on mesenchymal stem cells in cardiovascular disease. Stem Cell Res Ther 2020; 11:498. [PMID: 33239082 PMCID: PMC7687818 DOI: 10.1186/s13287-020-02009-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/03/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) have important research value and broad application prospects in the cardiovascular disease. This study provides information on the latest progress, evolutionary path, frontier research hotspots, and future research developmental trends in this field. METHODS A knowledge map was generated by CiteSpace and VOSviewer analysis software based on data obtained from the literature on MSCs in the cardiovascular field. RESULTS The USA and China ranked at the top in terms of the percentage of articles, accounting for 34.306% and 28.550%, respectively. The institution with the highest number of research publications in this field was the University of Miami, followed by the Chinese Academy of Medical Sciences and Harvard University. The research institution with the highest ACI value was Harvard University, followed by the Mayo Clinic and the University of Cincinnati. The top three subjects in terms of the number of published articles were cell biology, cardiovascular system cardiology, and research experimental medicine. The journal with the most publications in this field was Circulation Research, followed by Scientific Reports and Biomaterials. The direction of research on MSCs in the cardiovascular system was divided into four parts: (1) tissue engineering, scaffolds, and extracellular matrix research; (2) cell transplantation, differentiation, proliferation, and signal transduction pathway research; (3) assessment of the efficacy of stem cells from different sources and administration methods in the treatment of acute myocardial infarction, myocardial hypertrophy, and heart failure; and (4) exosomes and extracellular vesicles research. Tissue research is the hotspot and frontier in this field. CONCLUSION MSC research has presented a gradual upward trend in the cardiovascular field. Multidisciplinary intersection is a characteristic of this field. Engineering and materials disciplines are particularly valued and have received attention from researchers. The progress in multidisciplinary research will provide motivation and technical support for the development of this field.
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Affiliation(s)
- Chan Chen
- Hangzhou Xiaoshan district Hospital of TCM, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, 311201, Zhejiang, China. .,Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
| | - Yang Lou
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Xin-Yi Li
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Zheng-Tian Lv
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Lu-Qiu Zhang
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China
| | - Wei Mao
- The first Affiliated Hospital Zhejiang Chinese Medical University, Hangzhou, 311006, Zhejiang, China.
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Ayad O, Al Sayed ZR, Sebille S, Magaud C, Chapotte-Baldacci CA, Jayle C, Faivre JF, Gaborit N, Chatelier A, Bois P. In vitro differentiation of W8B2 + human cardiac stem cells: gene expression of ionic channels and spontaneous calcium activity. Cell Mol Biol Lett 2020; 25:50. [PMID: 33292162 PMCID: PMC7646077 DOI: 10.1186/s11658-020-00242-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 10/29/2020] [Indexed: 11/18/2022] Open
Abstract
Background Human cardiac stem cells expressing the W8B2 marker (W8B2+ CSCs) were recently identified and proposed as a new model of multipotent CSCs capable of differentiating into smooth muscle cells, endothelial cells and immature myocytes. Nevertheless, no characterization of ion channel or calcium activity during the differentiation of these stem cells has been reported. Methods The objectives of this study were thus to analyze (using the TaqMan Low-Density Array technique) the gene profile of W8B2+ CSCs pertaining to the regulation of ion channels, transporters and other players involved in the calcium homeostasis of these cells. We also analyzed spontaneous calcium activity (via the GCaMP calcium probe) during the in vitro differentiation of W8B2+ CSCs into cardiac myocytes. Results Our results show an entirely different electrophysiological genomic profile between W8B2+ CSCs before and after differentiation. Some specific nodal genes, such as Tbx3, HCN, ICaT, L, KV, and NCX, are overexpressed after this differentiation. In addition, we reveal spontaneous calcium activity or a calcium clock whose kinetics change during the differentiation process. A pharmacological study carried out on differentiated W8B2+ CSCs showed that the NCX exchanger and IP3 stores play a fundamental role in the generation of these calcium oscillations. Conclusions Taken together, the present results provide important information on ion channel expression and intrinsic calcium dynamics during the differentiation process of stem cells expressing the W8B2 marker.
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Affiliation(s)
- Oualid Ayad
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Zeina R Al Sayed
- CNRS, INSERM, l'institut du thorax, Université de Nantes, 44000, Nantes, France
| | - Stéphane Sebille
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Christophe Magaud
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | | | - Christophe Jayle
- CHU of Poitiers chirurgie cardiaque et thoracique, , Poitiers Cedex 09, France
| | - Jean-François Faivre
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Nathalie Gaborit
- CNRS, INSERM, l'institut du thorax, Université de Nantes, 44000, Nantes, France
| | - Aurélien Chatelier
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Patrick Bois
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France.
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Wang J, Gong M, Zuo S, Xu J, Paul C, Li H, Liu M, Wang YG, Ashraf M, Xu M. WNT11-Conditioned Medium Promotes Angiogenesis through the Activation of Non-Canonical WNT-PKC-JNK Signaling Pathway. Genes (Basel) 2020; 11:E1277. [PMID: 33137935 PMCID: PMC7694138 DOI: 10.3390/genes11111277] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/25/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND We demonstrated that the transduction of Wnt11 into mesenchymal stem cells (MSCs) (MSCWnt11) promotes these cells differentiation into cardiac phenotypes. In the present study, we investigated the paracrine effects of MSCWnt11 on cardiac function and angiogenesis. METHODS AND RESULTS Conditioned medium was collected from MSCWnt11 (CdMWnt11) and their control cells (CdMGFP). CdMWnt11, especially obtained from MSCWnt11 exposed to hypoxia, significantly promoted human umbilical vein endothelial cells (HUVECs) migration and increased capillary-like tube (CLT) formation, which was blocked by Wnt11 neutralizing antibody. Wnt11 protein was significantly higher in CdMWnt11 compared to that in CdMGFP. Directly treating HUVECs with recombinant Wnt11 protein significantly increased CLT formation, which was abrogated by treating cells with the JNK inhibitor SP600125, as well as the PKC inhibitor Calphostin-C. Moreover, the transfection of Wnt11 to HUVECs (HWnt11) significantly increased CLT formation and HUVEC migration, as well as upregulated p-pan-PKC and p-JNK expression. Injection of CdMWnt11 into the peri-infarct region in a rat acute myocardial infarction (AMI) model significantly improved cardiac function, reduced infarct size, and increased myocardial blood flow and blood vessel density in the ischemic area. CONCLUSION Wnt11 released from MSCWnt11 increased angiogenesis and improved cardiac function via non-canonical Wnt-PKC-JNK dependent pathways.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Meifeng Xu
- Department of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45267, USA; (J.W.); (M.G.); (S.Z.); (J.X.); (C.P.); (H.L.); (M.L.); (Y.-G.W.); (M.A.)
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Li HX, Lin J, Jiang B, Yang XJ. Wnt11 preserves mitochondrial membrane potential and protects cardiomyocytes against hypoxia through paracrine signaling. J Cell Biochem 2019; 121:1144-1155. [PMID: 31463993 DOI: 10.1002/jcb.29349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 08/13/2019] [Indexed: 12/15/2022]
Abstract
We investigated the effect of Wnt11 on mitochondrial membrane integrity in cardiomyocytes (CMs) and the underlying mechanism of Wnt11-mediated CM protection against hypoxic injury. A rat mesenchymal stem cell (MSC) line that overexpresses Wnt11 (MSCWnt11 ) and a control cell line transduced with empty vector (MSCNull ) were established to determine the cardioprotective role of Wnt11 in response to hypoxia. Mitochondrial membrane integrity in MSCWnt11 cells was assessed using fluorescence assays. The role of paracrine signaling mediated by vascular endothelial growth factor (VEGF), basic fibroblast growth factor (b-FGF), and insulin-like growth factor 1 (IGF-1) in protecting CMs against hypoxia were investigated using cocultures of primary CMs from neonatal rats with conditioned medium (CdM) from MSCWnt11 . MSCWnt11 cells exposed to hypoxia reduced lactate dehydrogenase release from CMs and increased CM survival under hypoxia. In addition, CMs cocultured with CdM that were exposed to hypoxia showed reduced CM apoptosis and necrosis. There was significantly higher VEGF and IGF-1 release in the MSCWnt11 group compared with the MSCNull group, and the addition of anti-VEGF and anti-IGF-1 antibodies inhibited secretion. Moreover, mitochondrial membrane integrity was maintained in the MSCWnt11 cell line. In conclusion, overexpression of Wnt11 in MSCs promotes IGF-1 and VEGF release, thereby protecting CMs against hypoxia.
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Affiliation(s)
- Hong-Xia Li
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Jia Lin
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Bin Jiang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiang-Jun Yang
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Cai J, Yang J, Liu Q, Gong Y, Zhang Y, Zhang Z. Selenium deficiency inhibits myocardial development and differentiation by targeting the mir-215-5p/CTCF axis in chicken. Metallomics 2019; 11:415-428. [DOI: 10.1039/c8mt00319j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selenium (Se) is imperative for normal myocardial differentiation and development, and these basic cellular functions can be regulated by miRNA during cardiogenesis.
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Affiliation(s)
- Jingzeng Cai
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Jie Yang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Qi Liu
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Yafan Gong
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Yuan Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Ziwei Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
- Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment
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10
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Chen B, Chen X, Liu C, Li J, Liu F, Huang Y. Co-expression of Akt1 and Wnt11 promotes the proliferation and cardiac differentiation of mesenchymal stem cells and attenuates hypoxia/reoxygenation-induced cardiomyocyte apoptosis. Biomed Pharmacother 2018; 108:508-514. [PMID: 30243083 DOI: 10.1016/j.biopha.2018.09.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/06/2018] [Accepted: 09/08/2018] [Indexed: 01/16/2023] Open
Abstract
Mesenchymal stem cells (MSCs) transplantation has emerged as a promising therapeutic strategy for acute myocardial infarction. However, there are still limitations for this therapy, such as low survival rate and poor cardiac differentiation potential of MSCs. In this study, we genetically engineered MSCs using ex vivo adeno-associated virus (AAV) transduction to overexpress Akt1 and Wnt11, which are well-characterized genes involved in MSC proliferation and cardiac differentiation. Our results showed that infection with AAV-Akt1-Wnt11 significantly upregulated the growth and proliferation of MSCs, as compared with those infected with AAV-Akt1 or AAV-Wnt11. In addition, co-expression of Akt1 and Wnt11 markedly promoted the expression of cardiac markers including NK2 transcription factor related 5, GATA-binding protein 4, α-myosin MHC and brain natriuretic protein. Notably, co-expression of Akt1 and Wnt11 increased cell survival and reduced cell apoptosis of MSCs under hypoxia/reoxygenation (H/R) treatment; however, these effects were blocked by Wnt11 neutralizing antibodies or Akt1 inhibitor. Moreover, co-culture of cardiomyocytes with MSCs infected with AAV-Akt1-Wnt11, in a dual chamber system, significantly reduced H/R-induced cell apoptosis compared with those co-cultured with MSCs infected with AAV-Akt1 or AAV-Wnt11. Overall, our results showed that MSCs, co-expressing Akt1 and Wnt11, showed greater survival and cardiac differentiation under H/R conditions and effectively ameliorated H/R-induced cardiomyocyte apoptosis in vitro. Our study suggests that transplantation of MSCs genetically engineered with AAV-Akt1-Wnt11 is a promising therapeutic strategy for treatment of acute myocardial infarction.
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Affiliation(s)
- Bangdang Chen
- Xin Jiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute of First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Xiaocui Chen
- Xin Jiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute of First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Cheng Liu
- 2nd Coronary Artery Disease Department of First Affiliated Hospital in Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Jihong Li
- 2nd Coronary Artery Disease Department of First Affiliated Hospital in Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Fen Liu
- Xin Jiang Key Laboratory of Cardiovascular Disease, Clinical Medical Research Institute of First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Ying Huang
- 2nd Coronary Artery Disease Department of First Affiliated Hospital in Xinjiang Medical University, Urumqi, Xinjiang 830054, China.
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Zhang J, Guo F, Wu H, Wei J, Xian M, Fan F, Tang S, Zhao Y, Zhang Y, Li D, Yang H. Yixin-Shu facilitated cardiac-like differentiation of mesenchymal stem cells in vitro. RSC Adv 2018; 8:10032-10039. [PMID: 35540854 PMCID: PMC9078824 DOI: 10.1039/c7ra13326j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/20/2018] [Indexed: 11/21/2022] Open
Abstract
Yixin-Shu capsules (YXS) are a Chinese Materia Medica standardized product used for heart disease and their effectiveness has been demonstrated through both clinical and experimental research. However, the mechanism involved has remained unclear. The effect of YXS on the cardiac-like differentiation of mesenchymal stem cells was investigated in this study. The intestinal absorption liquid of YXS was prepared using an in vitro intestinal absorption method and 62 compounds have been identified. A compound-target-function network constructed by a network pharmacology-based approach indicated that these compounds had an effect on cell differentiation. The effects of YXS on cardiac-like differentiation of mesenchymal stem cells was verified by detecting cardiac-specific protein expression such as α-actinin, cardiac troponin-I and desmin through real time-PCR, western blotting and immunofluorescence staining. A network pharmacology analysis indicated that the facilitation of YXS on the cardiac-like differentiation may be through the TGF-β signaling pathway, Wnt signaling pathway and MAPK signaling pathway. The observed improvements on cardiac differentiation may be due to the novel molecular mechanism for YXS that could also benefit developments in cardiac tissue engineering.
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Affiliation(s)
- Jingjing Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Feifei Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Hongwei Wu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Junying Wei
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Minghua Xian
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Fangfang Fan
- College of Ethnic Medicine, Chengdu University of TCM Chengdu 610072 China
| | - Shihuan Tang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Ye Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Yi Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Defeng Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
| | - Hongjun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences Beijing 100700 China +86-10-64013996 +86-10-64032656
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12
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Foulquier S, Daskalopoulos EP, Lluri G, Hermans KCM, Deb A, Blankesteijn WM. WNT Signaling in Cardiac and Vascular Disease. Pharmacol Rev 2018; 70:68-141. [PMID: 29247129 PMCID: PMC6040091 DOI: 10.1124/pr.117.013896] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
WNT signaling is an elaborate and complex collection of signal transduction pathways mediated by multiple signaling molecules. WNT signaling is critically important for developmental processes, including cell proliferation, differentiation and tissue patterning. Little WNT signaling activity is present in the cardiovascular system of healthy adults, but reactivation of the pathway is observed in many pathologies of heart and blood vessels. The high prevalence of these pathologies and their significant contribution to human disease burden has raised interest in WNT signaling as a potential target for therapeutic intervention. In this review, we first will focus on the constituents of the pathway and their regulation and the different signaling routes. Subsequently, the role of WNT signaling in cardiovascular development is addressed, followed by a detailed discussion of its involvement in vascular and cardiac disease. After highlighting the crosstalk between WNT, transforming growth factor-β and angiotensin II signaling, and the emerging role of WNT signaling in the regulation of stem cells, we provide an overview of drugs targeting the pathway at different levels. From the combined studies we conclude that, despite the sometimes conflicting experimental data, a general picture is emerging that excessive stimulation of WNT signaling adversely affects cardiovascular pathology. The rapidly increasing collection of drugs interfering at different levels of WNT signaling will allow the evaluation of therapeutic interventions in the pathway in relevant animal models of cardiovascular diseases and eventually in patients in the near future, translating the outcomes of the many preclinical studies into a clinically relevant context.
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Affiliation(s)
- Sébastien Foulquier
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Evangelos P Daskalopoulos
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Gentian Lluri
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Kevin C M Hermans
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - Arjun Deb
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
| | - W Matthijs Blankesteijn
- Department of Pharmacology and Toxicology, Cardiovascular Research Institute, Maastricht University, Maastricht, The Netherlands (S.F., K.C.M.H., W.M.B.); Recherche Cardiovasculaire (CARD), Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, Brussels, Belgium (E.P.D.); Department of Medicine, Division of Cardiology, David Geffen School of Medicine (G.L., A.D.); and Department of Molecular Cell and Developmental Biology, University of California at Los Angeles, Los Angeles, California (A.D.)
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13
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Prathipati P, Nandi SS, Mishra PK. Stem Cell-Derived Exosomes, Autophagy, Extracellular Matrix Turnover, and miRNAs in Cardiac Regeneration during Stem Cell Therapy. Stem Cell Rev Rep 2017; 13:79-91. [PMID: 27807762 DOI: 10.1007/s12015-016-9696-y] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stem cell therapy (SCT) raises the hope for cardiac regeneration in ischemic hearts. However, underlying molecular mechanisms for repair of dead myocardium by SCT in the ischemic heart is poorly understood. Growing evidences suggest that cardiac matrix stiffness and differential expressions of miRNAs play a crucial role in stem cell survival and differentiation. However, their roles on transplanted stem cells, for myocardial repair of the ischemic heart, remain unclear. Transplanted stem cells may act in an autocrine and/or paracrine manner to regenerate the dead myocardium. Paracrine mediators such as stem cell-derived exosomes are emerging as a novel therapeutic strategy to overcome some of the limitations of SCT. These exosomes carry microRNAs (miRNAs) that may regulate stem cell differentiation into a specific lineage. MicroRNAs may also contribute to stiffness of surrounding matrix by regulating extracellular matrix (ECM) turnover. The survival of transplanted stem cell depends on its autophagic process that maintains cellular homeostasis. Therefore, exosomes, miRNAs, extracellular matrix turnover, and autophagy may have an integral role in improving the efficacy of SCT. This review elaborates the specific roles of these regulatory components on cardiac regeneration in the ischemic heart during SCT.
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Affiliation(s)
- Priyanka Prathipati
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Shyam Sundar Nandi
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Paras Kumar Mishra
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
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14
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Touma M, Kang X, Gao F, Zhao Y, Cass AA, Biniwale R, Xiao X, Eghbali M, Coppola G, Reemtsen B, Wang Y. Wnt11 regulates cardiac chamber development and disease during perinatal maturation. JCI Insight 2017; 2:94904. [PMID: 28878122 DOI: 10.1172/jci.insight.94904] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022] Open
Abstract
Ventricular chamber growth and development during perinatal circulatory transition is critical for functional adaptation of the heart. However, the chamber-specific programs of neonatal heart growth are poorly understood. We used integrated systems genomic and functional biology analyses of the perinatal chamber specific transcriptome and we identified Wnt11 as a prominent regulator of chamber-specific proliferation. Importantly, downregulation of Wnt11 expression was associated with cyanotic congenital heart defect (CHD) phenotypes and correlated with O2 saturation levels in hypoxemic infants with Tetralogy of Fallot (TOF). Perinatal hypoxia treatment in mice suppressed Wnt11 expression and induced myocyte proliferation more robustly in the right ventricle, modulating Rb1 protein activity. Wnt11 inactivation was sufficient to induce myocyte proliferation in perinatal mouse hearts and reduced Rb1 protein and phosphorylation in neonatal cardiomyocytes. Finally, downregulated Wnt11 in hypoxemic TOF infantile hearts was associated with Rb1 suppression and induction of proliferation markers. This study revealed a previously uncharacterized function of Wnt11-mediated signaling as an important player in programming the chamber-specific growth of the neonatal heart. This function influences the chamber-specific development and pathogenesis in response to hypoxia and cyanotic CHDs. Defining the underlying regulatory mechanism may yield chamber-specific therapies for infants born with CHDs.
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Affiliation(s)
- Marlin Touma
- The Children's Discovery and Innovation Institute (CDI), Department of Pediatrics.,Cardiovascular Research Laboratory
| | - Xuedong Kang
- The Children's Discovery and Innovation Institute (CDI), Department of Pediatrics.,Cardiovascular Research Laboratory
| | | | - Yan Zhao
- The Children's Discovery and Innovation Institute (CDI), Department of Pediatrics.,Cardiovascular Research Laboratory
| | | | | | | | | | | | | | - Yibin Wang
- Cardiovascular Research Laboratory.,Department of Anesthesiology, Physiology and Medicine, University of California, Los Angeles, California, USA
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15
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Matkar PN, Leong-Poi H, Singh KK. Cardiac gene therapy: are we there yet? Gene Ther 2016; 23:635-48. [DOI: 10.1038/gt.2016.43] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 04/13/2016] [Accepted: 04/21/2016] [Indexed: 01/19/2023]
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16
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Almalki SG, Agrawal DK. Key transcription factors in the differentiation of mesenchymal stem cells. Differentiation 2016; 92:41-51. [PMID: 27012163 DOI: 10.1016/j.diff.2016.02.005] [Citation(s) in RCA: 272] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/15/2016] [Accepted: 02/25/2016] [Indexed: 11/15/2022]
Abstract
Mesenchymal stem cells (MSCs) are multipotent cells that represent a promising source for regenerative medicine. MSCs are capable of osteogenic, chondrogenic, adipogenic and myogenic differentiation. Efficacy of differentiated MSCs to regenerate cells in the injured tissues requires the ability to maintain the differentiation toward the desired cell fate. Since MSCs represent an attractive source for autologous transplantation, cellular and molecular signaling pathways and micro-environmental changes have been studied in order to understand the role of cytokines, chemokines, and transcription factors on the differentiation of MSCs. The differentiation of MSC into a mesenchymal lineage is genetically manipulated and promoted by specific transcription factors associated with a particular cell lineage. Recent studies have explored the integration of transcription factors, including Runx2, Sox9, PPARγ, MyoD, GATA4, and GATA6 in the differentiation of MSCs. Therefore, the overexpression of a single transcription factor in MSCs may promote trans-differentiation into specific cell lineage, which can be used for treatment of some diseases. In this review, we critically discussed and evaluated the role of transcription factors and related signaling pathways that affect the differentiation of MSCs toward adipocytes, chondrocytes, osteocytes, skeletal muscle cells, cardiomyocytes, and smooth muscle cells.
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Affiliation(s)
- Sami G Almalki
- Departments of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE, USA
| | - Devendra K Agrawal
- Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE, USA.
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17
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Visweswaran M, Pohl S, Arfuso F, Newsholme P, Dilley R, Pervaiz S, Dharmarajan A. Multi-lineage differentiation of mesenchymal stem cells - To Wnt, or not Wnt. Int J Biochem Cell Biol 2015; 68:139-47. [PMID: 26410622 DOI: 10.1016/j.biocel.2015.09.008] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 09/21/2015] [Accepted: 09/22/2015] [Indexed: 01/06/2023]
Abstract
Mesenchymal stem cells (MSCs) are multipotent precursor cells originating from several adult connective tissues. MSCs possess the ability to self-renew and differentiate into several lineages, and are recognized by the expression of unique cell surface markers. Several lines of evidence suggest that various signal transduction pathways and their interplay regulate MSC differentiation. To that end, a critical player in regulating MSC differentiation is a group of proteins encoded by the Wnt gene family, which was previously known for influencing various stages of embryonic development and cell fate determination. As MSCs have gained significant clinical attention for their potential applications in regenerative medicine, it is imperative to unravel the mechanisms by which molecular regulators control differentiation of MSCs for designing cell-based therapeutics. It is rather coincidental that the functional outcome(s) of Wnt-induced signals share similarities with cellular redox-mediated networks from the standpoint of MSC biology. Furthermore, there is evidence for a crosstalk between Wnt and redox signalling, which begs the question whether Wnt-mediated differentiation signals involve the intermediary role of reactive oxygen species. In this review, we summarize the impact of Wnt signalling on multi-lineage differentiation of MSCs, and attempt to unravel the intricate interplay between Wnt and redox signals.
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Affiliation(s)
- Malini Visweswaran
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Sebastian Pohl
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Philip Newsholme
- School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Rodney Dilley
- Ear Sciences Centre, University of Western Australia and Ear Science Institute Australia, Perth, Western Australia 6008, Australia
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; National University Cancer Institute, National University Health System, Singapore; School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia
| | - Arun Dharmarajan
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia 6102, Australia.
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18
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Nowakowski A, Walczak P, Janowski M, Lukomska B. Genetic Engineering of Mesenchymal Stem Cells for Regenerative Medicine. Stem Cells Dev 2015; 24:2219-42. [PMID: 26140302 DOI: 10.1089/scd.2015.0062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs), which can be obtained from various organs and easily propagated in vitro, are one of the most extensively used types of stem cells and have been shown to be efficacious in a broad set of diseases. The unique and highly desirable properties of MSCs include high migratory capacities toward injured areas, immunomodulatory features, and the natural ability to differentiate into connective tissue phenotypes. These phenotypes include bone and cartilage, and these properties predispose MSCs to be therapeutically useful. In addition, MSCs elicit their therapeutic effects by paracrine actions, in which the metabolism of target tissues is modulated. Genetic engineering methods can greatly amplify these properties and broaden the therapeutic capabilities of MSCs, including transdifferentiation toward diverse cell lineages. However, cell engineering can also affect safety and increase the cost of therapy based on MSCs; thus, the advantages and disadvantages of these procedures should be discussed. In this review, the latest applications of genetic engineering methods for MSCs with regenerative medicine purposes are presented.
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Affiliation(s)
- Adam Nowakowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
| | - Piotr Walczak
- 2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,4 Department of Radiology, Faculty of Medical Sciences, University of Warmia and Mazury , Olsztyn, Poland
| | - Miroslaw Janowski
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland .,2 Division of Magnetic Resonance Research, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine , Baltimore, Maryland.,3 Cellular Imaging Section and Vascular Biology Program, Institute for Cell Engineering, The Johns Hopkins University School of Medicine , Baltimore, Maryland
| | - Barbara Lukomska
- 1 NeuroRepair Department, Mossakowski Medical Research Centre, Polish Academy of Sciences , Warsaw, Poland
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19
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Mason D, Chen YZ, Krishnan HV, Sant S. Cardiac gene therapy: Recent advances and future directions. J Control Release 2015; 215:101-11. [PMID: 26254712 DOI: 10.1016/j.jconrel.2015.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 11/15/2022]
Abstract
Gene therapy has the potential to serve as an adaptable platform technology for treating various diseases. Cardiovascular disease is a major cause of mortality in the developed world and genetic modification is steadily becoming a more plausible method to repair and regenerate heart tissue. Recently, new gene targets to treat cardiovascular disease have been identified and developed into therapies that have shown promise in animal models. Some of these therapies have advanced to clinical testing. Despite these recent successes, several barriers must be overcome for gene therapy to become a widely used treatment of cardiovascular diseases. In this review, we evaluate specific genetic targets that can be exploited to treat cardiovascular diseases, list the important delivery barriers for the gene carriers, assess the most promising methods of delivering the genetic information, and discuss the current status of clinical trials involving gene therapies targeted to the heart.
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Affiliation(s)
- Daniel Mason
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Yu-Zhe Chen
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Harini Venkata Krishnan
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Shilpa Sant
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, 15219, USA.
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20
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Shadrin IY, Yoon W, Li L, Shepherd N, Bursac N. Rapid fusion between mesenchymal stem cells and cardiomyocytes yields electrically active, non-contractile hybrid cells. Sci Rep 2015; 5:12043. [PMID: 26159124 PMCID: PMC4498233 DOI: 10.1038/srep12043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 06/12/2015] [Indexed: 12/26/2022] Open
Abstract
Cardiac cell therapies involving bone marrow-derived human mesenchymal stem cells (hMSCs) have shown promising results, although their mechanisms of action are still poorly understood. Here, we investigated direct interactions between hMSCs and cardiomyocytes in vitro. Using a genetic Ca2+ indicator gCaMP3 to efficiently label hMSCs in co-cultures with neonatal rat ventricular myocytes (NRVMs), we determined that 25–40% of hMSCs (from 4 independent donors) acquired periodic Ca2+ transients and cardiac markers through spontaneous fusion with NRVMs. Sharp electrode and voltage-clamp recordings in fused cells showed action potential properties and Ca2+ current amplitudes in between those of non-fused hMSCs and NRVMs. Time-lapse video-microscopy revealed the first direct evidence of active fusion between hMSCs and NRVMs within several hours of co-culture. Application of blebbistatin, nifedipine or verapamil caused complete and reversible inhibition of fusion, suggesting potential roles for actomyosin bridging and Ca2+ channels in the fusion process. Immunostaining for Cx43, Ki67, and sarcomeric α-actinin showed that fused cells remain strongly coupled to surrounding NRVMs, but downregulate sarcomeric structures over time, acquiring a non-proliferative and non-contractile phenotype. Overall, these results describe the phenotype and mechanisms of hybrid cell formation via fusion of hMSCs and cardiomyocytes with potential implications for cardiac cell therapy.
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Affiliation(s)
- Ilya Y Shadrin
- Department of Biomedical Engineering, Duke University, Durham, NC
| | - Woohyun Yoon
- Department of Biomedical Engineering, Duke University, Durham, NC
| | - Liqing Li
- Department of Biomedical Engineering, Duke University, Durham, NC
| | - Neal Shepherd
- Department of Biomedical Engineering, Duke University, Durham, NC
| | - Nenad Bursac
- Department of Biomedical Engineering, Duke University, Durham, NC
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21
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Farouz Y, Chen Y, Terzic A, Menasché P. Concise Review: Growing Hearts in the Right Place: On the Design of Biomimetic Materials for Cardiac Stem Cell Differentiation. Stem Cells 2015; 33:1021-35. [DOI: 10.1002/stem.1929] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 11/10/2014] [Accepted: 12/01/2014] [Indexed: 12/25/2022]
Affiliation(s)
- Yohan Farouz
- Department of Chemistry, Paris Sciences et Lettres, Ecole Normale Supérieure de Paris; CNRS UMR; Paris France
- Sorbonne Paris Cité; Paris Descartes University; Paris France
- INSERM U970; Paris France
| | - Yong Chen
- Department of Chemistry, Paris Sciences et Lettres, Ecole Normale Supérieure de Paris; CNRS UMR; Paris France
| | | | - Philippe Menasché
- Sorbonne Paris Cité; Paris Descartes University; Paris France
- INSERM U970; Paris France
- Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou; Department of Cardiovascular Surgery; Paris France
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22
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Piryaei A, Soleimani M, Heidari MH, Saheli M, Rohani R, Almasieh M. Ultrastructural maturation of human bone marrow mesenchymal stem cells-derived cardiomyocytes under alternative induction of 5-azacytidine. Cell Biol Int 2015; 39:519-30. [DOI: 10.1002/cbin.10421] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 12/19/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Abbas Piryaei
- Department of Biology and Anatomical Sciences; Faculty of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Masoud Soleimani
- Department of Hematology; Faculty of Medical Sciences; Tarbiat Modarres University; Tehran Iran
| | - Mohammad Hassan Heidari
- Department of Biology and Anatomical Sciences; Faculty of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Mona Saheli
- Department of Biology and Anatomical Sciences; Faculty of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Razieh Rohani
- Department of Biology and Anatomical Sciences; Faculty of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Mohammadali Almasieh
- Montreal Neurological Institute & Department of Ophthalmology; Faculty of Medicine; McGill University; Montreal Canada
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23
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A cocktail method for promoting cardiomyocyte differentiation from bone marrow-derived mesenchymal stem cells. Stem Cells Int 2014; 2014:162024. [PMID: 25101130 PMCID: PMC4094872 DOI: 10.1155/2014/162024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/26/2014] [Accepted: 04/16/2014] [Indexed: 02/03/2023] Open
Abstract
A growing body of evidence supports the argument that bone marrow-derived mesenchymal stem cells (MSCs) can differentiate into cardiomyocyte-like cells in an appropriate cellular environment, but the differentiation rate is low. A cocktail method was designed: we investigated the role of 5-azacytidine (5-aza), salvianolic acid B (SalB), and cardiomyocyte lysis medium (CLM) in inducing MSCs to acquire the phenotypical characteristics of cardiomyocytes. The fourth-passage MSCs were treated with 5-aza, SalB, CLM, 5-aza+salB, 5-aza+CLM, SalB+CLM, and 5-aza+SalB+CLM for 2 weeks. Immunofluorescence results showed that cTnT expression in the 5-aza+salB+CLM group was stronger than other groups. Real-time qPCR and Western blotting analyses showed that cTnT, alpha-cardiac actin, mef-2c, Cx43, and GSK-3beta expression increased while beta-catenin expression decreased. The salB+5-aza+CLM group had the most evident effects. SalB combined with 5-aza and CLM improved cardiomyocyte differentiation from MSCs. In the MSCs differentiation process, the Wnt/beta-catenin signaling pathway had been inhibited.
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24
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Liu A, Chen S, Cai S, Dong L, Liu L, Yang Y, Guo F, Lu X, He H, Chen Q, Hu S, Qiu H. Wnt5a through noncanonical Wnt/JNK or Wnt/PKC signaling contributes to the differentiation of mesenchymal stem cells into type II alveolar epithelial cells in vitro. PLoS One 2014; 9:e90229. [PMID: 24658098 PMCID: PMC3962348 DOI: 10.1371/journal.pone.0090229] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/27/2014] [Indexed: 01/11/2023] Open
Abstract
The differentiation of mesenchymal stem cells (MSCs) into type II alveolar epithelial (AT II) cells is critical for reepithelization and recovery in acute respiratory distress syndrome (ARDS), and Wnt signaling was considered to be the underlying mechanisms. In our previous study, we found that canonical Wnt pathway promoted the differentiation of MSCs into AT II cells, however the role of the noncanonical Wnt pathway in this process is unclear. It was disclosed in this study that noncanonical Wnt signaling in mouse bone marrow-derived MSCs (mMSCs) was activated during the differentiation of mMSCs into AT II cells in a modified co-culture system with murine lung epithelial-12 cells and small airway growth media. The levels of surfactant protein (SP) C, SPB and SPD, the specific markers of AT II cells, increased in mMSCs when Wnt5a was added to activate noncanonical Wnt signaling, while pretreatment with JNK or PKC inhibitors reversed the promotion of Wnt5a. The differentiation rate of mMSCs also depends on their abilities to accumulate and survive in inflammatory tissue. We found that the Wnt5a supplement promoted the vertical and horizontal migration of mMSCs, ameliorated the cell death and the reduction of Bcl-2/Bax induced by H2O2. The effect of Wnt5a on the migration of mMSCs and their survival after H2O2 exposure were partially inhibited with PKC or JNK blockers. In conclusion, Wnt5a through Wnt/JNK signaling alone or both Wnt/JNK and Wnt/PKC signaling promoted the differentiation of mMSCs into AT II cells and the migration of mMSCs; through Wnt/PKC signaling, Wnt5a increased the survival of mMSCs after H2O2 exposure in vitro.
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Affiliation(s)
- Airan Liu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Song Chen
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, P. R. China
| | - Shixia Cai
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Liang Dong
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Le Liu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Yi Yang
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Fengmei Guo
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Xiaomin Lu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Hongli He
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Qihong Chen
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Shuling Hu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Haibo Qiu
- Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
- * E-mail:
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25
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Liu S, Zhang E, Yang M, Lu L. Overexpression of Wnt11 promotes chondrogenic differentiation of bone marrow-derived mesenchymal stem cells in synergism with TGF-β. Mol Cell Biochem 2014; 390:123-31. [PMID: 24474615 DOI: 10.1007/s11010-014-1963-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 01/14/2014] [Indexed: 12/19/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (MSCs), the most widely used cell source for cartilage tissue engineering, are multipotent cells which have been shown to differentiate into various mesenchyme-lineage cell types including chondrocytes. However, the molecular mechanisms controlling the chondrogenic differentiation of MSCs remain to be fully elucidated. It has been demonstrated that Wnt signaling involves regulating chondrogenesis and MSC differentiation. The aim of the present study was to investigate the role of Wnt11, a member of noncanonical Wnts, in MSCs during chondrogenic differentiation. We observed that overexpression of Wnt11 inhibited proliferation of MSCs and caused a G0/G1 cell cycle arrest. The expression level of chondrogenic markers, aggrecan and Collagen II, was significantly increased in MSCs transduced with Wnt11 as compared with non-transduced cells or MSCs transduced with the empty lentiviral vector. Furthermore, ectopic expression of Wnt11 stimulated gene expression of chondrogenic regulators, SRY-related gene 9, Runt-related transcription factor 2, and Indian hedgehog. Finally, Wnt11 overexpression promoted chondrogenic differentiation of MSCs in synergism with TGF-β. Collectively, these results indicate that Wnt11 plays a crucial role in regulating MSC chondrogenic differentiation.
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Affiliation(s)
- Shuang Liu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, 117 North Nanjing Street, 110001, Shenyang, People's Republic of China
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26
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Boopathy AV, Pendergrass KD, Che PL, Yoon YS, Davis ME. Oxidative stress-induced Notch1 signaling promotes cardiogenic gene expression in mesenchymal stem cells. Stem Cell Res Ther 2013; 4:43. [PMID: 23597145 PMCID: PMC3706823 DOI: 10.1186/scrt190] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Accepted: 04/08/2013] [Indexed: 12/30/2022] Open
Abstract
Introduction Administration of bone marrow-derived mesenchymal stem cells (MSCs) after myocardial infarction (MI) results in modest functional improvements. However; the effect of microenvironment changes after MI, such as elevated levels of oxidative stress on cardiogenic gene expression of MSCs, remains unclear. Methods MSCs were isolated from the bone marrow of adult rats and treated for 1 week with H2O2 (0.1 to 100 μM) or 48 hours with glucose oxidase (GOX; 0 to 5 mU/ml) to mimic long-term pulsed or short-term continuous levels of H2O2, respectively. Results In 100 μM H2O2 or 5 mU/ml GOX-treated MSCs, mRNA expression of selected endothelial genes (Flt1, vWF, PECAM1), and early cardiac marker (nkx2-5, αMHC) increased significantly, whereas early smooth muscle markers (smooth muscle α-actin and sm22α) and fibroblast marker vimentin decreased, as measured with real-time PCR. Interestingly, mRNA expression and activity of the cell-surface receptor Notch1 were significantly increased, as were its downstream targets, Hes5 and Hey1. Co-treatment of MSCs with 100 μM H2O2 and a γ-secretase inhibitor that prevents Notch signaling abrogated the increase in cardiac and endothelial genes, while augmenting the decrease in smooth muscle markers. Further, on GOX treatment, a significant increase in Wnt11, a downstream target of Notch1, was observed. Similar results were obtained with adult rat cardiac-derived progenitor cells. Conclusions These data suggest that H2O2- or GOX-mediated oxidative stress upregulates Notch1 signaling, which promotes cardiogenic gene expression in adult stem/progenitor cells, possibly involving Wnt11. Modulating the balance between Notch activation and H2O2-mediated oxidative stress may lead to improved adult stem cell-based therapies for cardiac repair and regeneration.
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Role of WNT/β-Catenin Signaling in Rejuvenating Myogenic Differentiation of Aged Mesenchymal Stem Cells from Cardiac Patients. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:2067-78. [DOI: 10.1016/j.ajpath.2012.08.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 08/09/2012] [Accepted: 08/16/2012] [Indexed: 12/17/2022]
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Vono R, Spinetti G, Gubernator M, Madeddu P. What's new in regenerative medicine: split up of the mesenchymal stem cell family promises new hope for cardiovascular repair. J Cardiovasc Transl Res 2012; 5:689-99. [PMID: 22886691 DOI: 10.1007/s12265-012-9395-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 07/27/2012] [Indexed: 12/20/2022]
Abstract
Coronary artery disease (CAD) is exceedingly prevalent and requires care optimization. Regenerative medicine holds promise to improve the clinical outcome of CAD patients. Current approach consists in subsidizing the infarcted heart with boluses of autologous stem cells from the bone marrow. Moreover, mesenchymal stem cells (MSCs) are in the focus of intense research owing to an apparent superiority in plasticity and regenerative capacity compared with hematopoietic stem cells. In this review, we report recent findings indicating the presence, within the heterogeneous MSC population, of perivascular stem cells expressing typical pericyte markers. Moreover, we focus on recent research showing the presence of similar cells in the adventitia of large vessels. These discoveries were fundamental to shape a roadmap toward clinical application in patients with myocardial ischemia. Adventitial stem cells are ideal candidates for promotion of cardiac repair owing to their ease of accessibility and expandability and potent vasculogenic activity.
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Li Z, Guo X, Guan J. A Thermosensitive Hydrogel Capable of Releasing bFGF for Enhanced Differentiation of Mesenchymal Stem Cell into Cardiomyocyte-like Cells under Ischemic Conditions. Biomacromolecules 2012; 13:1956-64. [DOI: 10.1021/bm300574j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Zhenqing Li
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xiaolei Guo
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jianjun Guan
- Department of Materials Science & Engineering, The Ohio State University, Columbus, Ohio 43210, United States
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Alberton P, Popov C, Prägert M, Kohler J, Shukunami C, Schieker M, Docheva D. Conversion of human bone marrow-derived mesenchymal stem cells into tendon progenitor cells by ectopic expression of scleraxis. Stem Cells Dev 2011; 21:846-58. [PMID: 21988170 DOI: 10.1089/scd.2011.0150] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Tendons and ligaments (T/L) are dense connective tissues of mesodermal origin. During embryonic development, the tendon-specific cells descend from a sub-set of mesenchymal progenitors condensed in the syndetome, a dorsolateral domain of the sclerotome. These cells are defined by the expression of the transcription factor scleraxis (Scx), which regulates tendon formation and several other characteristic genes, such as collagen type I, decorin, fibromodulin, and tenomodulin (Tnmd). In contrast to other mesenchymal progenitors, the genealogy and biology of the tenogenic lineage is not yet fully understood due to the lack of simple and efficient protocols enabling generation of progenitors in vitro. Here, we investigated whether the expression of Scx can lead to the direct commitment of mesenchymal stem cells (MSCs) into tendon progenitors. First, MSC derived from human bone marrow (hMSC) were lentivirally transduced with FLAG-Scx cDNA to establish 2 clonal cell lines, hMSC-Scx and hMSC-Mock. Subsequent to Scx transduction, hMSC underwent cell morphology change and had significantly reduced proliferation and clonogenicity. Gene expression analysis demonstrated that collagen type I and several T/L-related proteoglycans were upregulated in hMSC-Scx cells. When stimulated toward 3 different mesenchymal lineages, hMSC-Scx cells failed to differentiate into chondrocytes and osteoblasts, whereas adipogenic differentiation still occurred. Lastly, we detected a remarkable upregulation of the T/L differentiation gene Tnmd in hMSC-Scx. From these results, we conclude that Scx delivery results in the direct programming of hMSC into tendon progenitors and that the newly generated hMSC-Scx cell line can be a powerful and useful tool in T/L research.
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Affiliation(s)
- Paolo Alberton
- Experimental Surgery and Regenerative Medicine, Department of Surgery, Ludwig-Maximilians-University (LMU), Munich, Germany
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Li H, Zuo S, Pasha Z, Yu B, He Z, Wang Y, Yang X, Ashraf M, Xu M. GATA-4 promotes myocardial transdifferentiation of mesenchymal stromal cells via up-regulating IGFBP-4. Cytotherapy 2011; 13:1057-65. [PMID: 21846294 DOI: 10.3109/14653249.2011.597380] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND AIMS GATA-4 is a cardiac transcription factor and plays an important role in cell lineage differentiation during development. We investigated whether overexpression of GATA-4 increases adult mesenchymal stromal cell (MSC) transdifferentiation into a cardiac phenotype in vitro. METHODS MSC were harvested from rat bone marrow (BM) and transduced with GATA-4 (MSC(GATA-4)) using a murine stem cell virus (pMSCV) retroviral expression system. Gene expression in MSC(GATA-4) was analyzed using quantitative reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting. Native cardiomyocytes (CM) were isolated from ventricles of neonatal rats. Myocardial transdifferentiation of MSC was determined by immunostaining and electrophysiologic recording. The transdifferentiation rate was calculated directly from flow cytometery. RESULTS The expression of cardiac genes, including brain natriuretic peptide (BNP), Islet-1 and α-sarcomeric actinin (α-SA), was up-regulated in MSC(GATA-4) compared with control cells that were transfected with Green Fluorescent Protein (GFP) only (MSC(Null)). At the same time, insulin-like growth factor-binding protein (IGFBP)-4 was significantly up-regulated in MSC(GATA-4). A synchronous beating of MSC with native CM was detected and an action potential was recorded. Some GFP (+) cells were positive for α-SA staining after MSC were co-cultured with native CM for 7 days. The transdifferentiation rate was significantly higher in MSC(GATA-4). Functional studies indicated that the differentiation potential of MSC(GATA-4) was decreased by knockdown of IGFBP-4. CONCLUSIONS Overexpression of GATA-4 significantly increases MSC differentiation into a myocardial phenotype, which might be associated with the up-regulation of IGFBP-4.
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Affiliation(s)
- Hongxia Li
- Department of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, OH 45867, USA
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Zuo S, Jones WK, Li H, He Z, Pasha Z, Yang Y, Wang Y, Fan GC, Ashraf M, Xu M. Paracrine effect of Wnt11-overexpressing mesenchymal stem cells on ischemic injury. Stem Cells Dev 2011; 21:598-608. [PMID: 21463175 DOI: 10.1089/scd.2011.0071] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Our previous studies have suggested that transduction of Wnt11 directly increases bone marrow-derived mesenchymal stem cells (MSCs) differentiation into cardiac phenotypes. In this study, we investigated whether Wnt11 enhances MSC-mediated cardioprotection via paracrine fashion after acute ischemia. MSCs were harvested from male rat bone marrow and transduced with Wnt11 (MSC(Wnt11)). An acute myocardial infarction model in rats was developed by ligation of the left anterior descending coronary artery. MSC(Wnt11) were transplanted into the peri-infarct region after acute myocardial infarction. To mimic ischemic injury, cultured cardiomyocytes (CMs) isolated from neonatal ventricles were exposed to hypoxia. ELISA studies indicated that the release of Wnt11 (3.45-fold) as well as transforming growth factor-β2 (TGFβ2) (1.5-fold) was significantly increased from MSC(Wnt11) compared with transduced control MSC (MSC(Null)). Hypoxia-induced apoptosis and cell death was significantly reduced when CM were co-cultured with MSC(Wnt11) in a dual chamber system. The cell protection mediated by MSC(Wnt11) was mimicked by treating CM with conditioned medium obtained from MSC(Wnt11) and abrogated by Wnt11- and TGFβ2 neutralizing antibodies. Further, animals receiving MSC(Wnt11) showed a significant improvement in cardiac contractile function as assessed by echocardiography. Masson trichrome and TUNEL staining showed a significant reduction in infarct size and apoptosis of CM in MSC(Wnt11)-treated animals. Transplantation of MSC(Wnt11) improved cardiac function. The release of Wnt11 and other factors from transplanted MSC(Wnt11) is more likely responsible for protection of native CM at risk.
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Affiliation(s)
- Shi Zuo
- Department of Pathology and Laboratory Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio 45267, USA
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