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Fabrication and Characterization Techniques of In Vitro 3D Tissue Models. Int J Mol Sci 2023; 24:ijms24031912. [PMID: 36768239 PMCID: PMC9915354 DOI: 10.3390/ijms24031912] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/21/2023] Open
Abstract
The culturing of cells in the laboratory under controlled conditions has always been crucial for the advancement of scientific research. Cell-based assays have played an important role in providing simple, fast, accurate, and cost-effective methods in drug discovery, disease modeling, and tissue engineering while mitigating reliance on cost-intensive and ethically challenging animal studies. The techniques involved in culturing cells are critical as results are based on cellular response to drugs, cellular cues, external stimuli, and human physiology. In order to establish in vitro cultures, cells are either isolated from normal or diseased tissue and allowed to grow in two or three dimensions. Two-dimensional (2D) cell culture methods involve the proliferation of cells on flat rigid surfaces resulting in a monolayer culture, while in three-dimensional (3D) cell cultures, the additional dimension provides a more accurate representation of the tissue milieu. In this review, we discuss the various methods involved in the development of 3D cell culture systems emphasizing the differences between 2D and 3D systems and methods involved in the recapitulation of the organ-specific 3D microenvironment. In addition, we discuss the latest developments in 3D tissue model fabrication techniques, microfluidics-based organ-on-a-chip, and imaging as a characterization technique for 3D tissue models.
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Duan J, Liu X, Shen S, Tan X, Wang Y, Wang L, Kang L, Wang K, Wei Z, Qi Y, Hu L, Xu B, Gu R. Trophoblast Stem-Cell-Derived Exosomes Alleviate Cardiotoxicity of Doxorubicin via Improving Mfn2-Mediated Mitochondrial Fusion. Cardiovasc Toxicol 2023; 23:23-31. [PMID: 36609664 PMCID: PMC9859904 DOI: 10.1007/s12012-022-09774-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 12/04/2022] [Indexed: 01/09/2023]
Abstract
Doxorubicin (Dox) is an anticancer drug widely used in tumor chemotherapy, but it has the side-effect of cardiotoxicity, which is closely related to mitochondrial damage. Mitochondrial dynamics is a quality control mechanism that usually helps to maintain a healthy mitochondrial pool. Trophoblast stem cell-derived exosomes (TSC-Exos) have been shown to protect cardiomyocytes from DOX-induced cardiotoxicity. To explore whether the cardioprotective role is mediated by the regulation of mitochondrial dynamic mechanism, TSC-Exos were isolated from human trophoblast stem cells by ultracentrifugation and characterized by Western blot and transmission electron microscopy. Cellular experiments of H9c2 cardiomyocytes co-cultured with Dox and TSC-Exos were performed in vitro to determine the levels of reactive oxygen species generation and apoptosis level. An animal model of heart failure was established by intraperitoneal injection of Dox in vivo, therapy mice were received additional intracardiac injection of TSC-Exos, then, the cardiac function, cardiomyocyte apoptosis and mitochondrial fragmentation were ameliorated. Histology assays suggest that Dox caused an increased tendency of mitochondrial fission, which was manifested by a decrease in the average size of mitochondria. By receiving TSC-Exos treatment, this effect was eliminated. In summary, these results suggest that TSC-Exos alleviate DOX-induced cardiotoxicity through antiapoptotic effect and improving mitochondrial fusion with an increase in Mfn2 expression. This study is the first to provide a potential new treatment scheme for the treatment of heart failure from the perspective of the relationship between TSC-Exos and mitochondrial dynamics.
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Affiliation(s)
- Junfeng Duan
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Xiaoli Liu
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Song Shen
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Xi Tan
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Yi Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Cardiology, Nanjing Drum Tower Hospital, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Lian Wang
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Lina Kang
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Kun Wang
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Zhonghai Wei
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Yu Qi
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Lei Hu
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China
| | - Biao Xu
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China.
| | - Rong Gu
- State Key Laboratory of Pharmaceutical Biotechnology Department of Cardiology, Medical School of Nanjing University, Nanjing Drum Tower Hospital, No. 321 Zhongshan Road, Nanjing, 210008, China.
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Hassanpour M, Cheraghi O, Rahbarghazi R, Nouri M. Autophagy stimulation delayed biological aging and decreased cardiac differentiation in rabbit mesenchymal stem cells. J Cardiovasc Thorac Res 2021; 13:234-240. [PMID: 34630972 PMCID: PMC8493233 DOI: 10.34172/jcvtr.2021.43] [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: 05/25/2021] [Accepted: 08/18/2021] [Indexed: 12/02/2022] Open
Abstract
Introduction: Cardiovascular disease (CVD) is a type of disease that affects the function of cardiac-vascular tissues. This study aimed to consider the possible effects of autophagy, as an intrinsic catabolic pathway of cells, on the differentiation and aging process of mesenchymal stem cells (MSCs). Methods: In this study, bone marrow-derived MSCs were obtained from rabbit bone marrow aspirates. The stemness feature was confirmed by using flow cytometry analysis Cells at passage three were treated with 50 μM Metformin and 15μM hydroxychloroquine (HCQ) for 72 hours. The intracellular accumulation of autophagolysosomes was imaged using LysoTracker staining. Protein levels of autophagy (LC3II/I ratio), aging (Klotho, PARP-1, and Sirt-1) effectors, and cardiomyocyte-like phenotype (α-actinin) were studied by western blotting. Results: Based on our findings, flow cytometry analysis showed that the obtained cells expressed CD44 and CD133 strongly, and CD31 and CD34 dimly, showing a typical characteristic of MSCs. Our data confirmed an increased LC3II/I ratio in the metformin-received group compared to the untreated and HCQ-treated cells (P < 0.05). Besides, we showed that the incubation of rabbit MSCs with HCQ increased cellular aging by induction of PARP-1 while Metformin increased rejuvenating factor Sirt-1 comparing with the normal group (P < 0.05). Western blotting data showed that the autophagy stimulation response in rabbit MSCs postponed the biological aging and decreased the differentiation potential to the cardiac cells by diminishing α-actinin comparing with control cells (P < 0.05). Conclusion: In summary, for the informants in this study, it could be noted that autophagy inhibition/stimulation could alter rabbit MSCs aging and differentiation capacity.
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Affiliation(s)
- Mehdi Hassanpour
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Omid Cheraghi
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Reza Rahbarghazi
- Department of Applied Cell Science, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Battig MR, Alferiev IS, Guerrero DT, Fishbein I, Pressly BB, Levy RJ, Chorny M. Experimental Single-Platform Approach to Enhance the Functionalization of Magnetically Targetable Cells. ACS APPLIED BIO MATERIALS 2020; 3:3914-3922. [PMID: 33251488 DOI: 10.1021/acsabm.0c00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Magnetic guidance shows promise as a strategy for improving the delivery and performance of cell therapeutics. However, clinical translation of magnetically guided cell therapy requires cell functionalization protocols that provide adequate magnetic properties in balance with unaltered cell viability and biological function. Existing methodologies for characterizing cells functionalized with magnetic nanoparticles (MNP) produce aggregate results, both distorted and unable to reflect variability in either magnetic or biological properties within a preparation. In the present study, we developed an inverted-plate assay allowing determination of these characteristics using a single-platform approach, and applied this method for a comparative analysis of two loading protocols providing highly uniform vs. uneven MNP distribution across cells. MNP uptake patterns remarkably different between the two protocols were first shown by fluorimetry carried out in a well-scan mode on endothelial cells (EC) loaded with BODIPY558/568-labeled MNP. Using the inverted-plate assay we next demonstrated that, in stark contrast to unevenly loaded cells, more than 50% of uniformly functionalized EC were captured within 5 min over a broad range of MNP doses. Furthermore, magnetically captured cells exhibited unaltered viability, substrate attachment, and proliferation rates. Conducted in parallel, magnetophoretic mobility studies corroborated the markedly superior guidance capacity of uniformly functionalized cells, confirming substantially faster cell capture kinetics on a clinically relevant time scale. Taken together, these results emphasize the importance of optimizing cell preparation protocols with regard to loading uniformity as key to efficient site-specific delivery, engraftment, and expansion of the functionalized cells, essential for both improving performance and facilitating translation of targeted cell therapeutics.
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Affiliation(s)
- Mark R Battig
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Ivan S Alferiev
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - David T Guerrero
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Ilia Fishbein
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Benjamin B Pressly
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Robert J Levy
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Michael Chorny
- Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
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Apolipoprotein A-I Supports MSCs Survival under Stress Conditions. Int J Mol Sci 2020; 21:ijms21114062. [PMID: 32517119 PMCID: PMC7312015 DOI: 10.3390/ijms21114062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/03/2020] [Indexed: 12/20/2022] Open
Abstract
Clinical trials have shown the safety of mesenchymal stem/stromal cells (MSCs) transplantation, but the effectiveness of these treatments is limited. Since, transplanted MSCs will undergo metabolic disturbances in the bloodstream, we investigated the influence of blood plasmas of type 2 diabetes (T2D) patients on MSCs viability and examined whether apolipoprotein A-I (apoA-I) could protect cells from stressful conditions of serum deprivation (SD), hypoxia, and elevated concentrations of reactive oxygen species (ROS). ApoA-I exhibits anti-inflammatory, immune activities, improves glycemic control, and is suitable for T2D patients but its influence on MSCs remains unknown. For the first time we have shown that apoA-I decreases intracellular ROS and supports proliferative rate of MSCs, thereby increasing cell count in oxidation conditions. ApoA-I did not influence cell cycle when MSCs were predominantly in the G0/G1 phases under conditions of SD/hypoxia, activated proliferation rapidly, and reduced apoptosis during MSCs transition to the oxygenation or oxidation conditions. Finally, it was found that the blood plasma of T2D individuals had a cytotoxic effect on MSCs in 39% of cases and had a wide variability of antioxidant properties. ApoA-I protects cells under all adverse conditions and can increase the efficiency of MSCs transplantation in T2D patients.
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Xiao JM, Wang JJ, Sun LL. Effect of miR-134 against myocardial hypoxia/reoxygenation injury by directly targeting NOS3 and regulating PI3K/Akt pathway. Acta Cir Bras 2019; 34:e201900802. [PMID: 31618402 PMCID: PMC6799975 DOI: 10.1590/s0102-865020190080000002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/08/2019] [Indexed: 12/22/2022] Open
Abstract
Purpose To reveal the function of miR-134 in myocardial ischemia. Methods Real-time PCR and western blotting were performed to measure the expression
of miR-134, nitric oxide synthase 3 (NOS3) and apoptotic-associated
proteins. Lactic dehydrogenase (LDH) assay, cell counting kit-8 (CCK-8),
Hoechst 33342/PI double staining and flow cytometry assay were implemented
in H9c2 cells, respectively. MiR-134 mimic/inhibitor was used to regulate
miR-134 expression. Bioinformatic analysis and luciferase reporter assay
were utilized to identify the interrelation between miR-134 and NOS3. Rescue
experiments exhibited the role of NOS3. The involvement of PI3K/AKT was
assessed by western blot analysis. Results MiR-134 was high regulated in the myocardial ischemia model, and miR-134
mimic/inhibitor transfection accelerated/impaired the speed of cell
apoptosis and attenuated/exerted the cell proliferative prosperity induced
by H/R regulating active status of PI3K/AKT signaling. LDH activity was also
changed due to the different treatments. Moreover, miR-134 could target NOS3
directly and simultaneously attenuated the expression of NOS3.
Co-transfection miR-134 inhibitor and pcDNA3.1-NOS3 highlighted the
inhibitory effects of miR-134 on myocardial H/R injury. Conclusion This present work puts insights into the crucial effects of the miR-134/NOS3
axis in myocardial H/R injury, delivering a potential therapeutic technology
in future.
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Affiliation(s)
- Jian-Min Xiao
- Master, Department of Cardiovascular Medicine , Daqing Oilfield General Hospital , Daqing , Heilongjiang , P.R. China . Technical procedures, interpretation of data, statistical analysis, manuscript preparation
| | - Ji-Jia Wang
- Master, Department of Cardiovascular Medicine , Daqing Oilfield General Hospital , Daqing , Heilongjiang , P.R. China . Technical procedures, interpretation of data, statistical analysis, manuscript preparation
| | - Li-Li Sun
- Master, Department of Geriatric Medicine , Daqing Oilfield General Hospital , Daqing , Heilongjiang , P.R. China . Conception and design of the study, critical revision
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Chen HP, Wen J, Tan SR, Kang LM, Zhu GC. MiR-199a-3p inhibition facilitates cardiomyocyte differentiation of embryonic stem cell through promotion of MEF2C. J Cell Physiol 2019; 234:23315-23325. [PMID: 31140610 DOI: 10.1002/jcp.28899] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/06/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022]
Abstract
MicroRNAs (miRNAs) is a small molecule (19-25 nucleotide) noncoding RNA that inhibits the expression of target messenger RNA (mRNA) at the posttranscriptional level as an endogenous regulator. There is an increasing evidence that miR-199a-3p has a significant effect on the development of multiple tumors. However, the specific roles of miR-199a-3p in myocardial differentiation of embryonic stem cell still need to be investigated. Method of the hanging drop was used to build the model of cardiomyocyte differentiation of stem cell and beating rate of embryoid bodies (EBs) was calculated. The levels of intracellular MEF2C, a-MHC, GATA4, Nkx2.5, and cTnT mRNA were measured by real-time quantitative polymerase chain reaction, while the expressions of miR-199a-3p were detected simultaneously. Protein levels of MEF2C, a-MHC, GATA4, Nkx2.5, and cTnT were quantified by western blot analysis. Immunoreactivities of MEF2C and cTnT were analyzed by immunofluorescence. The interaction between miR-199a-3p and its predicted target (3'-untranslated region of MEF2C mRNA) was verified by luciferase assay. MiR-199a-3p levels increased during cardiogenesis. MiR-199a-3p inhibitor increased the beating rate of EBs and promoted expressions of cardiac-specific markers (GATA4, Nkx2.5, cTnT, and a-MHC). Notably, miR-199a-3p inhibition brought upregulation of MEF2C, which is the target of miR-199a-3p that we predicted and verified experimentally. In addition, MEF2C siRNA decreased miR-199a-3p inhibitor promoted EBs beating and attenuated miR-199a-3p inhibitor-induced cTnT and MEF2C expressions. The results above showed that MEF2C was involved in the process of promoting the differentiation of stem cells into cardiac myocytes by miR-199a-3p inhibitors.
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Affiliation(s)
- Hong-Ping Chen
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang, China.,Jiangxi Province Key Laboratory of Tumor Pathogen's and Molecular Pathology, Nanchang University, Nanchang, China
| | - Jing Wen
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang, China
| | - Si-Rui Tan
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang, China
| | - Lu-Mei Kang
- Department of Animal Science, Medical College, Nanchang University, Nanchang, China
| | - Gao-Chun Zhu
- Department of Anatomy of the Human Body, Medical College, Nanchang University, Nanchang, China
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Cheng XX, Yang QY, Qi YL, Liu ZZ, Liu D, He S, Yang LH, Xie J. Apoptosis of mesenchymal stem cells is regulated by Rspo1 via the Wnt/β-catenin signaling pathway. Chronic Dis Transl Med 2019; 5:53-63. [PMID: 30993264 PMCID: PMC6450805 DOI: 10.1016/j.cdtm.2019.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Indexed: 01/19/2023] Open
Abstract
Objective The aim of this study was to investigate the effect and possible mechanism of action of roof plate-specific spondin1 (Rspo1) in the apoptosis of rat bone marrow mesenchymal stem cells (BMSCs). Methods Osteogenic and adipogenic differentiation of BMSCs was identified by Alizarin Red and Oil Red O staining, respectively. BMSC surface markers (cluster of differentiation 29 [CD29], CD90, and CD45) were detected using flow cytometry. BMSCs were transfected with an adenoviral vector encoding Rspo1 (BMSCs-Rspo1 group). The expression levels of Rspo1 gene and Rspo1 protein in the BMSCs-Rspo1 group and the two control groups (untransfected BMSCs group and BMSCs-green fluorescent protein [GFP] group) were analyzed and compared by quantitative polymerase chain reaction and Western blot. The occurrence of apoptosis in the three groups was detected by flow cytometry and acridine orange-ethidium bromide (AO-EB) double dyeing. The activity of the Wnt/β-catenin signaling pathway was evaluated by measuring the expression levels of the key proteins of the pathway (β-catenin, c-Jun N-terminal kinase [JNK], and phospho-JNK). Results Osteogenic and adipogenic differentiation was confirmed in cultured BMSCs by the positive expression of CD29 and CD90 and the negative expression of CD45. Significantly increased expression levels of Rspo1 protein in the BMSCs-Rspo1 group compared to those in the BMSCs (0.60 ± 0.05 vs. 0.13 ± 0.02; t=95.007, P=0.001) and BMSCs-GFP groups (0.60 ± 0.05 vs. 0.10 ± 0.02; t=104.842, P=0.001) were observed. The apoptotic rate was significantly lower in the BMSCs-Rspo1 group compared with those in the BMSCs group ([24.06 ± 2.37]% vs. [40.87 ± 2.82]%; t = 49.872, P = 0.002) and the BMSCs-GFP group ([24.06 ± 2.37]% vs. [42.34 ± 0.26]%; t = 62.358, P = 0.001). In addition, compared to the BMSCs group, the protein expression levels of β-catenin (2.67 ± 0.19 vs. 1.14 ± 0.14; t = −9.217, P = 0.000) and JNK (1.87 ± 0.17 vs. 0.61 ± 0.07; t = −22.289, P = 0.000) were increased in the BMSCs-Rspo1 group. Compared to the BMSCs-GFP group, the protein expression levels of β-catenin (2.67 ± 0.19 vs. 1.44 ± 0.14; t = −5.692, P = 0.000) and JNK (1.87 ± 0.17 vs. 0.53 ± 0.06; t = −10.589, P = 0.000) were also upregulated in the BMSCs-Rspo1 group. Moreover, the protein expression levels of phospho-JNK were increased in the BMSCs-Rspo1 group compared to those in the BMSCs group (1.89 ± 0.10 vs. 0.63 ± 0.09; t = −8.975, P = 0.001) and the BMSCs-GFP group (1.89 ± 0.10 vs. 0.69 ± 0.08; t = −9.483, P = 0.001). Conclusion The Wnt/β-catenin pathway could play a vital role in the Rspo1-mediated inhibition of apoptosis in BMSCs.
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Affiliation(s)
- Xiao-Xia Cheng
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Qiao-Yan Yang
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China.,The First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Yong-Li Qi
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China.,Huaihe Hospital of Henan University, Kaifeng, Henan 475000, China
| | - Zhi-Zhen Liu
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Dan Liu
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Sheng He
- The First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Li-Hong Yang
- Department of Pathology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Jun Xie
- Department of Biochemistry and Molecular Biology, Shanxi Medical University, Taiyuan, Shanxi 030001, China
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Wang YL, Zhang G, Wang HJ, Tan YZ, Wang XY. Preinduction with bone morphogenetic protein-2 enhances cardiomyogenic differentiation of c-kit + mesenchymal stem cells and repair of infarcted myocardium. Int J Cardiol 2019; 265:173-180. [PMID: 29885685 DOI: 10.1016/j.ijcard.2018.01.134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 01/27/2018] [Accepted: 01/31/2018] [Indexed: 10/14/2022]
Abstract
BACKGROUND Preclinical and clinical trails show that c-kit+ cardiac stem cells can differentiate towards cardiovascular cells and improve cardiac function after myocardial infarction (MI). However, survival and differentiation of the engrafted stem cells within ischemic and inflammatory microenvironment are poor. METHODS c-Kit+ cells were isolated from mesenchymal stem cells (MSCs) of rat bone marrow. Reliability of preinduction with bone morphogenetic protein-2 (BMP-2) in promotion of survival and differentiation of c-kit+ MSCs was assessed in vitro and after transplantation. RESULTS c-Kit+ MSCs have a potential to differentiate towards cardiomyocytes. BMP-2 promotes proliferation, migration and paracrine of the cells, and protects the cells to survive in the hypoxic condition. After induction with 10 ng/mL BMP-2 for 24 h, the cells can differentiate into cardiomyocytes at four weeks. The electrophysiological characteristics of the differentiated cells are same as adult ventricular cardiomyocytes. In rat MI models, cardiac function was improved, the size of scar tissue was reduced, and regeneration of the myocardium and microvessels was enhanced significantly at four weeks after transplantation of BMP-2-preinduced cells. The survived cells and cardiomyocytes differentiated from the engrafted cells were increased greatly. CONCLUSION The results suggest that transient treatment with BMP-2 can induce c-kit+ MSCs to differentiate into functional cardiomyocytes. Preinduction with BMP-2 enhances survival and differentiation of the cells. BMP-2-primed cells promote repair of the infarcted myocardium and improvement of cardiac function. Transplantation of BMP-2-preinduced c-kit+ MSCs is a feasible strategy for MI therapy.
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Affiliation(s)
- Yong-Li Wang
- Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai 200032, China
| | - Guitao Zhang
- Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai 200032, China; Department of Anatomy, Histology and Embryology, Capital Medical University, Beijing, China
| | - Hai-Jie Wang
- Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai 200032, China.
| | - Yu-Zhen Tan
- Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai 200032, China.
| | - Xin-Yan Wang
- Department of Anatomy, Histology and Embryology, Shanghai Medical School of Fudan University, Shanghai 200032, China
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Cellular Therapy for Ischemic Heart Disease: An Update. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1201:195-213. [PMID: 31898788 DOI: 10.1007/978-3-030-31206-0_10] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ischemic heart disease (IHD), which includes heart failure (HF) induced by heart attack (myocardial infarction, MI), is a significant cause of morbidity and mortality worldwide (Benjamin, et al. Circulation 139:e56-e66, 2019). MI occurs at an alarmingly high rate in the United States (approx. One case every 40 seconds), and the failure to repair damaged myocardium is the leading cause of recurrent heart attacks, heart failure (HF), and death within 5 years of MI (Benjamin, et al. Circulation 139:e56-e66, 2019). At present, HF represents an unmet need with no approved clinical therapies to replace the damaged myocardium. As the population ages, the number of heart failure patients is projected to increase, doubling the annual cost by 2030 (Benjamin, et al. Circulation 139:e56-e66, 2019). In the past decades, stem cell therapy has become a promising strategy for cardiac regeneration. However, stem cell-based therapy yielded modest success in human clinical trials. This chapter examines the types of cells examined in cardiac therapy in the setting of IHD, with a brief introduction to ongoing research aiming at enhancing the therapeutic potential of transplanted cells.
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Cardiosphere-derived cells suppress allogeneic lymphocytes by production of PGE2 acting via the EP4 receptor. Sci Rep 2018; 8:13351. [PMID: 30190508 PMCID: PMC6127326 DOI: 10.1038/s41598-018-31569-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 08/07/2018] [Indexed: 12/17/2022] Open
Abstract
Cardiosphere-derived cells (CDCs) are a cardiac progenitor cell population, which have been shown to possess cardiac regenerative properties and can improve heart function in a variety of cardiac diseases. Studies in large animal models have predominantly focussed on using autologous cells for safety, however allogeneic cell banks would allow for a practical, cost-effective and efficient use in a clinical setting. The aim of this work was to determine the immunomodulatory status of these cells using CDCs and lymphocytes from 5 dogs. CDCs expressed MHC I but not MHC II molecules and in mixed lymphocyte reactions demonstrated a lack of lymphocyte proliferation in response to MHC-mismatched CDCs. Furthermore, MHC-mismatched CDCs suppressed lymphocyte proliferation and activation in response to Concanavalin A. Transwell experiments demonstrated that this was predominantly due to direct cell-cell contact in addition to soluble mediators whereby CDCs produced high levels of PGE2 under inflammatory conditions. This led to down-regulation of CD25 expression on lymphocytes via the EP4 receptor. Blocking prostaglandin synthesis restored both, proliferation and activation (measured via CD25 expression) of stimulated lymphocytes. We demonstrated for the first time in a large animal model that CDCs inhibit proliferation in allo-reactive lymphocytes and have potent immunosuppressive activity mediated via PGE2.
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12
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Lv Y, Liu B, Liu Y, Wang H, Wang H. TGF-β1 combined with Sal-B promotes cardiomyocyte differentiation of rat mesenchymal stem cells. Exp Ther Med 2018; 15:5359-5364. [PMID: 29904415 DOI: 10.3892/etm.2018.6105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/27/2017] [Indexed: 01/07/2023] Open
Abstract
Transforming growth factor β1 (TGF-β1) and salvianolic acid B (Sal-B) are key signaling factors for stem cell differentiation into cardiomyocytes (CMs). The present study compared the biological effect of TGF-β1 and Sal-B, alone or in combination, on bone marrow mesenchymal stromal cells (BMSCs) that differentiate into myocardial-like cells in a simulated myocardial microenvironment in vitro. BMSCs were isolated from bones of limbs of 10 male Sprague Dawley rats and cultured. The 2nd-generation BMSCs were co-incubated with TGF-β1 and Sal-B, alone or in combination, for 72 h. The control group was BMSCs cultured without any inductive substance. The levels GATA binding protein 4 (GATA4) and homeobox protein NKx2.5 were determined by reverse-transcription quantitative polymerase chain reaction and immunofluorescence staining was used to evaluate α-sarcomeric actin and cardiac troponin I (cTNI) as cardiomyogenic differentiation markers. The ultrastructure of BMSCs in each group was also observed. BMSCs were initially spindle-shaped with irregular processes. The cells gradually increased in number 24 h post-inoculation and proliferated 7 days later. Compared with the control group, BMSCs in the treatment groups had fusiform shapes, orientating with one accord and were connected with adjoining cells forming myotube-like structures on day 28. The morphology and architecture/myotubes of BMSCs was similar among the treatment groups, but the amount of cells in the combined group was comparatively higher. The results of immunofluorescence staining revealed the expression of the CM-specific proteins α-sarcomeric actin and cTNI in these cells. The expression of these cardiac-specific markers in the combined group was significantly higher than that in the other groups (P<0.01 or P<0.05). In addition, the transcriptional expression of GATA4 and NKx2.5 in the treatment groups was stable and significantly higher than that in the control group on day 7. Transmission electron microscopy showed that BMSCs in the treatment groups all had myofilaments, rough endoplasmic reticulum and mitochondria in the cytoplasm when compared with the control group. Taken together, these results indicated that the combination of TGF-β1 and Sal-B effectively promotes cardiomyogenic differentiation of BMSCs in vitro and their application may represent a therapeutic strategy for the treatment of ischemic heart disease.
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Affiliation(s)
- Yang Lv
- Department of Histology and Embryology, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
| | - Bo Liu
- Department of Pathology, The First Affiliated Hospital of Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
| | - Yuan Liu
- Department of Histology and Embryology, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
| | - Haoyu Wang
- Department of Histology and Embryology, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
| | - Haiping Wang
- Department of Histology and Embryology, Hebei North University, Zhangjiakou, Hebei 075000, P.R. China
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13
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Abstract
During the past decades, stem cell-based therapy has acquired a promising role in regenerative medicine. The application of novel cell therapeutics for the treatment of cardiovascular diseases could potentially achieve the ambitious aim of effective cardiac regeneration. Despite the highly positive results from preclinical studies, data from phase I/II clinical trials are inconsistent and the improvement of cardiac remodeling and heart performance was found to be quite limited. The major issues which cardiac stem cell therapy is facing include inefficient cell delivery to the site of injury, accompanied by low cell retention and weak effectiveness of remaining stem cells in tissue regeneration. According to preclinical and clinical studies, various stem cells (adult stem cells, embryonic stem cells, and induced pluripotent stem cells) represent the most promising cell types so far. Beside the selection of the appropriate cell type, researchers have developed several strategies to produce “second-generation” stem cell products with improved regenerative capacity. Genetic and nongenetic modifications, chemical and physical preconditioning, and the application of biomaterials were found to significantly enhance the regenerative capacity of transplanted stem cells. In this review, we will give an overview of the recent developments in stem cell engineering with the goal to facilitate stem cell delivery and to promote their cardiac regenerative activity.
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14
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Ling X, Yao D, Kang L, Zhou J, Zhou Y, Dong H, Zhang K, Zhang L, Chen H. Involment of RAS/ERK1/2 signaling and MEF2C in miR-155-3p inhibition-triggered cardiomyocyte differentiation of embryonic stem cell. Oncotarget 2017; 8:84403-84416. [PMID: 29137434 PMCID: PMC5663606 DOI: 10.18632/oncotarget.21218] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 08/27/2017] [Indexed: 12/18/2022] Open
Abstract
MicroRNAs (miRNAs) are short, noncoding RNAs that regulate post-transcriptional gene expression by targeting messenger RNAs (mRNAs) for cleavage or translational repression. Growing evidence indicates that miR-155 expression changes with the development of heart and plays an important role in heart physiopathology. However, the role of miR-155 in cardiac cells differentiation is unclear. Using the well-established embryonic stem cell (ESC), we demonstrated that miR-155-3p expression was down-regulated during cardiogenesis from mouse ESC. By contrast, the myogenic enhance factor 2C (MEF2C), a predicted target gene of miR-155-3p, was up-regulated. We further demonstrated that miR-155-3p inhibition increased the percentage of embryoid bodies (EB) beating and up-regulated the expression of cardiac specific markers, GATA4, Nkx2.5, and cTnT mRNA and protein. Notably, miR-155-3p inhibition caused upregulation of MEF2C, KRAS and ERK1/2. ERK1/2 inhibitor, PD98059 significantly decreased the expression of MEF2C protein. These findings indicate that miR-155-3p inhibition promotes cardiogenesis, and its mechanisms are involved in the RAS-ERK1/2 signaling and MEF2C.
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Affiliation(s)
- Xiang Ling
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Dongbo Yao
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Lumei Kang
- Department of Animal Science, Medical College, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Jing Zhou
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Ying Zhou
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Hui Dong
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Keping Zhang
- Department of Experimental Teaching, Medical College, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Lei Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Hongping Chen
- Department of Histology and Embryology, Medical College, Nanchang University, Nanchang, Jiangxi 330006, China.,Jiangxi Province Key Laboratory of Tumor Pathogen's and Molecular Pathology, Nanchang, Jiangxi 330006, China
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15
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Cambria E, Pasqualini FS, Wolint P, Günter J, Steiger J, Bopp A, Hoerstrup SP, Emmert MY. Translational cardiac stem cell therapy: advancing from first-generation to next-generation cell types. NPJ Regen Med 2017; 2:17. [PMID: 29302353 PMCID: PMC5677990 DOI: 10.1038/s41536-017-0024-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 05/16/2017] [Accepted: 05/22/2017] [Indexed: 12/16/2022] Open
Abstract
Acute myocardial infarction and chronic heart failure rank among the major causes of morbidity and mortality worldwide. Except for heart transplantation, current therapy options only treat the symptoms but do not cure the disease. Stem cell-based therapies represent a possible paradigm shift for cardiac repair. However, most of the first-generation approaches displayed heterogeneous clinical outcomes regarding efficacy. Stemming from the desire to closely match the target organ, second-generation cell types were introduced and rapidly moved from bench to bedside. Unfortunately, debates remain around the benefit of stem cell therapy, optimal trial design parameters, and the ideal cell type. Aiming at highlighting controversies, this article provides a critical overview of the translation of first-generation and second-generation cell types. It further emphasizes the importance of understanding the mechanisms of cardiac repair and the lessons learned from first-generation trials, in order to improve cell-based therapies and to potentially finally implement cell-free therapies.
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Affiliation(s)
- Elena Cambria
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland
| | | | - Petra Wolint
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland
| | - Julia Günter
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland
| | - Julia Steiger
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland
| | - Annina Bopp
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland.,Heart Center Zurich, University Hospital of Zurich, Zurich, Switzerland.,Wyss Translational Center Zurich, Zurich, Switzerland
| | - Maximilian Y Emmert
- Institute for Regenerative Medicine, University of Zurich, Zurich, 8044 Switzerland.,Division of Surgical Research, University Hospital of Zurich, Zurich, 8091 Switzerland.,Heart Center Zurich, University Hospital of Zurich, Zurich, Switzerland.,Wyss Translational Center Zurich, Zurich, Switzerland
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16
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Huang H, Zhang Q, Liu J, Hao H, Jiang C, Han W. Granulocyte-Colony Stimulating Factor (G-CSF) Accelerates Wound Healing in Hemorrhagic Shock Rats by Enhancing Angiogenesis and Attenuating Apoptosis. Med Sci Monit 2017; 23:2644-2653. [PMID: 28559534 PMCID: PMC5461887 DOI: 10.12659/msm.904988] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Background Following severe trauma, treatment of cutaneous injuries is often delayed by inadequate blood supply. The aim of the present study was to determine whether granulocyte-colony stimulating factor (G-CSF) protects endothelial cells (ECs) and enhances angiogenesis in a rat model of hemorrhagic shock (HS) combined with cutaneous injury after resuscitation. Material/Methods The HS rats with full-thickness defects were resuscitated and randomly divided into a G-CSF group (200 μg/kg body weight), a normal saline group, and a blank control group. Histological staining was to used estimate the recovery and apoptosis of skin. Apoptosis- and angiogenesis-related factors were analyzed by reverse transcription-polymerase chain reaction (RT-PCR) and Western blot (WB). Scratch assay, tube formation, and WB experiments were performed to verify the functional effects of G-CSF on HUVECs in vitro. Results H&E staining and Masson trichrome staining showed earlier inflammation resolution and collagen synthesis in the G-CSF-treated group. Angiogenesis-related factors were elevated at mRNA and protein levels. TUNEL staining suggested fewer apoptotic cells in the G-CSF group. The apoptotic-related factors were down-regulated and anti-apoptotic factors were up-regulated in the G-CSF-treated group. Scratch assay and tube formation experiments revealed that G-CSF facilitated migration ability and angiogenic potential of HUVECs. The angiogenic and anti-apoptotic effects were also enhanced in vitro. Conclusions Our results suggest that G-CSF after resuscitation attenuates local apoptosis and accelerates angiogenesis. These findings hold great promise for improving therapy for cutaneous injury in severe trauma and ischemia diseases.
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Affiliation(s)
- Hong Huang
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland).,Medical school of Nankai University, Tianjin, China (mainland)
| | - Qi Zhang
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland).,Medical school of Nankai University, Tianjin, China (mainland)
| | - Jiejie Liu
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland)
| | - Haojie Hao
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland)
| | - Chaoguang Jiang
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland)
| | - Weidong Han
- Department of Molecular and Immunological, Chinese PLA General Hospital, Beijing, China (mainland).,Department of Bio-Therapeutic, Chinese PLA General Hospital, Beijing, China (mainland)
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17
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Voronina N, Lemcke H, Wiekhorst F, Kühn JP, Frank M, Steinhoff G, David R. Preparation and In Vitro Characterization of Magnetized miR-modified Endothelial Cells. J Vis Exp 2017:55567. [PMID: 28518114 PMCID: PMC5565141 DOI: 10.3791/55567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
To date, the available surgical and pharmacological treatments for cardiovascular diseases (CVD) are limited and often palliative. At the same time, gene and cell therapies are highly promising alternative approaches for CVD treatment. However, the broad clinical application of gene therapy is greatly limited by the lack of suitable gene delivery systems. The development of appropriate gene delivery vectors can provide a solution to current challenges in cell therapy. In particular, existing drawbacks, such as limited efficiency and low cell retention in the injured organ, could be overcome by appropriate cell engineering (i.e., genetic) prior to transplantation. The presented protocol describes the efficient and safe transient modification of endothelial cells using a polyethyleneimine superparamagnetic magnetic nanoparticle (PEI/MNP)-based delivery vector. Also, the algorithm and methods for cell characterization are defined. The successful intracellular delivery of microRNA (miR) into human umbilical vein endothelial cells (HUVECs) has been achieved without affecting cell viability, functionality, or intercellular communication. Moreover, this approach was proven to cause a strong functional effect in introduced exogenous miR. Importantly, the application of this MNP-based vector ensures cell magnetization, with accompanying possibilities of magnetic targeting and non-invasive MRI tracing. This may provide a basis for magnetically guided, genetically engineered cell therapeutics that can be monitored non-invasively with MRI.
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Affiliation(s)
- Natalia Voronina
- Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock
| | - Heiko Lemcke
- Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock
| | | | - Jens-Peter Kühn
- Department of Radiology and Neuroradiology, Ernst-Moritz-Arndt-University Greifswald
| | - Markus Frank
- Electron Microscopy Center, University of Rostock
| | - Gustav Steinhoff
- Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock
| | - Robert David
- Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock;
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18
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Ozeke O, Aras D, Tufekcioglu O, Aydogdu S. Noncompaction cardiomyopathy and stem cell therapy: from pathogenesis to targeted therapy? Expert Rev Cardiovasc Ther 2016; 15:3-4. [PMID: 27801604 DOI: 10.1080/14779072.2017.1256202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ozcan Ozeke
- a Turkiye Yuksek Ihtisas Training and Research Hospital , Cardiology Clinic , Ankara , Turkey
| | - Dursun Aras
- a Turkiye Yuksek Ihtisas Training and Research Hospital , Cardiology Clinic , Ankara , Turkey
| | - Omac Tufekcioglu
- a Turkiye Yuksek Ihtisas Training and Research Hospital , Cardiology Clinic , Ankara , Turkey
| | - Sinan Aydogdu
- a Turkiye Yuksek Ihtisas Training and Research Hospital , Cardiology Clinic , Ankara , Turkey
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19
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Transplantation of osteoporotic bone marrow stromal cells rejuvenated by the overexpression of SATB2 prevents alveolar bone loss in ovariectomized rats. Exp Gerontol 2016; 84:71-79. [PMID: 27599698 DOI: 10.1016/j.exger.2016.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 08/12/2016] [Accepted: 09/02/2016] [Indexed: 12/16/2022]
Abstract
Estrogen-deficient osteoporosis is an aging-related disease with high morbidity that not only significantly increases a woman's risk of fragility fracture but is also associated with tooth and bone loss in the supporting alveolar bone of the jaw. Emerging evidence suggests that the aging of bone marrow stromal cells (BMSCs) contributes to the development of osteoporosis. In this study, we aimed to investigate the role of the special AT-rich sequence-binding protein 2 (SATB2), a stemness and senescence regulator of craniofacial BMSCs, in rat ovariectomy-induced alveolar osteoporosis. We also sought to determine whether transplantation of SATB2-modified BMSCs could ameliorate estrogen deficient alveolar bone loss. Our data revealed that BMSCs from ovariectomy-induced alveolar bone exhibited typical senescence phenotypes such as diminished stemness and osteogenic capacity, increased expression of senescence or osteoclastic markers and enhanced adipogenic potential. These phenotypic changes are a result of SATB2-mediated senescence dysregulation as evidenced by nuclear γH2AX foci formation. Moreover, overexpression of SATB2 significantly alleviated the senescence of osteoporotic BMSCs in vitro. Importantly, transplantation of SATB2-modified BMSCs significantly attenuated ovariectomy-induced alveolar bone loss in vivo. Together, our results revealed that SATB2 is a critical regulator of alveolar BMSC senescence, and its overexpression decreases these senescent changes both in vitro and in vivo. SATB2-modified BMSC delivery could be a viable and promising therapeutic strategy for alveolar bone loss induced by estrogen-deficient osteoporosis.
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20
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Zaglia T, Di Bona A, Chioato T, Basso C, Ausoni S, Mongillo M. Optimized protocol for immunostaining of experimental GFP-expressing and human hearts. Histochem Cell Biol 2016; 146:407-19. [PMID: 27311322 DOI: 10.1007/s00418-016-1456-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2016] [Indexed: 02/07/2023]
Abstract
Morphological and histochemical analysis of the heart is fundamental for the understanding of cardiac physiology and pathology. The accurate detection of different myocardial cell populations, as well as the high-resolution imaging of protein expression and distribution, within the diverse intracellular compartments, is essential for basic research on disease mechanisms and for the translatability of the results to human pathophysiology. While enormous progress has been made on the imaging hardware and methods and on biotechnological tools [e.g., use of green fluorescent protein (GFP), viral-mediated gene transduction] to investigate heart cell structure and function, most of the protocols to prepare heart tissue samples for analysis have remained almost identical for decades. We here provide a detailed description of a novel protocol of heart processing, tailored to the simultaneous detection of tissue morphology, immunofluorescence markers and native emission of fluorescent proteins (i.e., GFP). We compared a variety of procedures of fixation, antigen unmasking and tissue permeabilization, to identify the best combination for preservation of myocardial morphology and native GFP fluorescence, while simultaneously allowing detection of antibody staining toward sarcomeric, membrane, cytosolic and nuclear markers. Furthermore, with minimal variations, we implemented such protocol for the study of human heart samples, including those already fixed and stored with conventional procedures, in tissue archives or bio-banks. In conclusion, a procedure is here presented for the laboratory investigation of the heart, in both rodents and humans, which accrues from the same tissue section information that would normally require the time-consuming and tissue-wasting observation of multiple serial sections.
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Affiliation(s)
- Tania Zaglia
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35133, Padua, Italy. .,Venetian Institute of Molecular Medicine (VIMM), Via Orus 2, 35129, Padua, Italy.
| | - Anna Di Bona
- Venetian Institute of Molecular Medicine (VIMM), Via Orus 2, 35129, Padua, Italy.,Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Via A. Gabelli, 61, 35121, Padua, Italy
| | | | - Cristina Basso
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Via A. Gabelli, 61, 35121, Padua, Italy
| | - Simonetta Ausoni
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35133, Padua, Italy
| | - Marco Mongillo
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi 58/b, 35133, Padua, Italy.,Venetian Institute of Molecular Medicine (VIMM), Via Orus 2, 35129, Padua, Italy.,CNR Institute of Neuroscience, Viale G. Colombo 3, 35121, Padua, Italy
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21
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Lv Y, Liu B, Wang HP, Zhang L. Intramyocardial implantation of differentiated rat bone marrow mesenchymal stem cells enhanced by TGF-β1 improves cardiac function in heart failure rats. ACTA ACUST UNITED AC 2016; 49:e5273. [PMID: 27254663 PMCID: PMC4932821 DOI: 10.1590/1414-431x20165273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/10/2016] [Indexed: 01/19/2023]
Abstract
The present study tested the hypotheses that i) transforming growth
factor beta 1 (TGF-β1) enhances differentiation of rat bone marrow mesenchymal stem
cells (MSCs) towards the cardiomyogenic phenotype and ii)
intramyocardial implantation of the TGF-β1-treated MSCs improves cardiac function in
heart failure rats. MSCs were treated with different concentrations of TGF-β1 for 72
h, and then morphological characteristics, surface antigens and mRNA expression of
several transcription factors were assessed. Intramyocardial implantation of these
TGF-β1-treated MSCs to infarcted heart was also investigated. MSCs were initially
spindle-shaped with irregular processes. On day 28 after TGF-β1 treatment, MSCs
showed fusiform shape, orientating parallel with one another, and were connected with
adjoining cells forming myotube-like structures. Immunofluorescence revealed the
expression of cardiomyocyte-specific proteins, α-sarcomeric actin and troponin T, in
these cells. The mRNA expression of GATA4 and
Nkx2.5 genes was slightly increased on day 7, enhanced on day 14
and decreased on day 28 while α-MHC gene was not expressed on day 7,
but expressed slightly on day 14 and enhanced on day 28. Transmission electron
microscopy showed that the induced cells had myofilaments, z line-like substances,
desmosomes, and gap junctions, in contrast with control cells. Furthermore,
intramyocardial implantation of TGF-β1-treated MSCs to infarcted heart reduced scar
area and increased the number of muscle cells. This structure regeneration was
concomitant with the improvement of cardiac function, evidenced by decreased left
ventricular end-diastolic pressure, increased left ventricular systolic pressure and
increased maximal positive pressure development rate. Taken together, these results
indicate that intramyocardial implantation of differentiated MSCs enhanced by TGF-β1
improved cardiac function in heart failure rats.
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Affiliation(s)
- Y Lv
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - B Liu
- Department of Pathology, Hebei North University, Zhangjiakou, Hebei, China
| | - H P Wang
- Department of Histology and Embryology, Hebei North University, Zhangjiakou, Hebei, China
| | - L Zhang
- Department of Histology and Embryology, Hebei Medical University, Shijiazhuang, Hebei, China
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22
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Stem cell therapy for heart failure: Out with the new and in with the old? J Thorac Cardiovasc Surg 2015; 150:1035-7. [DOI: 10.1016/j.jtcvs.2015.09.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 09/11/2015] [Indexed: 12/18/2022]
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