1
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Liu B, Li Z, Huang S, Yan B, He S, Chen F, Liang Y. AAV-Containing Exosomes as a Novel Vector for Improved Gene Delivery to Lung Cancer Cells. Front Cell Dev Biol 2021; 9:707607. [PMID: 34485293 PMCID: PMC8414974 DOI: 10.3389/fcell.2021.707607] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/02/2021] [Indexed: 01/14/2023] Open
Abstract
Lung carcinoma is the most common type of cancer and the leading cause of cancer-related death worldwide. Among the numerous therapeutic strategies for the treatment of lung cancer, adeno-associated virus (AAV)-mediated gene transfer has been demonstrated to have the potential to effectively suppress tumor growth or reverse the progression of the disease in a number of preclinical studies. AAV vector has a safety profile; however, the relatively low delivery efficacy to particular subtypes of lung carcinoma has limited its prospective clinical translation. Exosomes are nanosized extracellular vesicles secreted from nearly all known cell types. Exosomes have a membrane-enclosed structure carrying a range of cargo molecules for efficient intercellular transfer of functional entities, thus are considered as a superior vector for drug delivery. In the present study, we developed a novel strategy to produce and purify AAV-containing exosomes (AAVExo) from AAV-packaging HEK 293T cells. The cellular uptake capacity of exosomes assisted and enhanced AAV entry into cells and protected AAV from antibody neutralization, which was a serious challenge for AAV in vivo application. We tested a list of lung cancer cell lines representing non-small-cell lung cancer and small-cell lung cancer and found that AAVExo apparently improved the gene transfer efficiency compared to conventional AAV vector. Our in vitro results were supported in vivo in a lung cancer xenograft rodent model. Additionally, we evaluated the gene delivery efficiency in the presence of neutralizing antibody on lung cancer cells. The results demonstrated that AAVExo-mediated gene transfer was not impacted, while the AAV vectors were significantly blocked by the neutralizing antibody. Taken together, we established an efficient methodology for AAVExo purification, and the purified AAVExo largely enhanced gene delivery to lung cancer cells with remarkable resistance to antibody neutralization.
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Affiliation(s)
- Bin Liu
- Center for Biological Science and Technology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China.,Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Zhiqing Li
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shi Huang
- Anhui University of Chinese Medicine, Hefei, China
| | - Biying Yan
- Center for Biological Science and Technology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China
| | - Shan He
- Department of Burns, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Fengyuan Chen
- Department of Pathology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yaxuan Liang
- Center for Biological Science and Technology, Advanced Institute of Natural Sciences, Beijing Normal University at Zhuhai, Zhuhai, China
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2
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Sahoo S, Adamiak M, Mathiyalagan P, Kenneweg F, Kafert-Kasting S, Thum T. Therapeutic and Diagnostic Translation of Extracellular Vesicles in Cardiovascular Diseases: Roadmap to the Clinic. Circulation 2021; 143:1426-1449. [PMID: 33819075 PMCID: PMC8021236 DOI: 10.1161/circulationaha.120.049254] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Exosomes are small membrane-bound vesicles of endocytic origin that are actively secreted. The potential of exosomes as effective communicators of biological signaling in myocardial function has previously been investigated, and a recent explosion in exosome research not only underscores their significance in cardiac physiology and pathology, but also draws attention to methodological limitations of studying these extracellular vesicles. In this review, we discuss recent advances and challenges in exosome research with an emphasis on scientific innovations in isolation, identification, and characterization methodologies, and we provide a comprehensive summary of web-based resources available in the field. Importantly, we focus on the biology and function of exosomes, highlighting their fundamental role in cardiovascular pathophysiology to further support potential applications of exosomes as biomarkers and therapeutics for cardiovascular diseases.
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Affiliation(s)
- Susmita Sahoo
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York (S.S., M.A., P.M.)
| | - Marta Adamiak
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York (S.S., M.A., P.M.)
| | - Prabhu Mathiyalagan
- Cardiovascular Research Institute, Icahn School of Medicine at Mount Sinai, New York (S.S., M.A., P.M.)
| | - Franziska Kenneweg
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS) (F.K., S.K-K., T.T.), Hannover Medical School, Germany
| | - Sabine Kafert-Kasting
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS) (F.K., S.K-K., T.T.), Hannover Medical School, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany (S.K-K., T.T.)
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS) (F.K., S.K-K., T.T.), Hannover Medical School, Germany
- REBIRTH Center for Translational Regenerative Medicine (T.T.), Hannover Medical School, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany (S.K-K., T.T.)
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3
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Yang L, Zhu J, Zhang C, Wang J, Yue F, Jia X, Liu H. Stem cell-derived extracellular vesicles for myocardial infarction: a meta-analysis of controlled animal studies. Aging (Albany NY) 2020; 11:1129-1150. [PMID: 30792374 PMCID: PMC6402509 DOI: 10.18632/aging.101814] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 02/01/2019] [Indexed: 12/15/2022]
Abstract
Aims Stem cell-derived extracellular vesicles (EVs) have emerged as a promising therapy for myocardial infarction, but its effects remain incompletely understood. We aim to systematically review the efficacy of EVs on myocardial infarction in both small and large animals. Methods On April 5, 2018, we searched the PubMed, Embase and Web of Science databases using variations of “myocardial infarction” and “extracellular vesicle”. Controlled studies about the treatment effects of stem cell-derived EVs in myocardial infarction animal model were included. Meta-regression analysis was used to reveal the factors affecting the EVs treatments. Results Of 1210 studies retrieved, 24 were eligible for meta-analysis. EVs injection was associated with the improvements of left ventricular ejection fraction (12.65%), fractional shortening (7.54%) and the reduction of infarct size/area at risk (-15.55%). Meta-regression analysis did not reveal the association between treatment efficacy and type of stem cell, ligation-to-injection interval, route of delivery, dosage of delivery or follow-up period (all P values > 0.05). The median quality score of eligible studies was only 1, indicating potential risks of bias. Conclusion Stem cell-derived EVs improve cardiac function and reduce infarct size in myocardial infarction animals, but current pool-up study reveals no associations between common factors and treatment effects.
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Affiliation(s)
- Lihong Yang
- Department of Cardiac Function Evaluation, Henan Provincial People's Hospital, Zhengzhou, Henan, China.,Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou, Henan, China
| | - Jialu Zhu
- Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou, Henan, China
| | - Cong Zhang
- Department of Electrocardiology, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, China
| | - Juntao Wang
- Department of Cardiology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan, China
| | - Fengyang Yue
- Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou, Henan, China
| | - Xingtai Jia
- Department of Cardiology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hongzhi Liu
- Department of Cardiology, Zhengzhou University People's Hospital, Zhengzhou, Henan, China.,Department of Cardiology, Fuwai Central China Hospital, Zhengzhou, Henan, China.,Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, Henan, China
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4
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Tschuschke M, Kocherova I, Bryja A, Mozdziak P, Angelova Volponi A, Janowicz K, Sibiak R, Piotrowska-Kempisty H, Iżycki D, Bukowska D, Antosik P, Shibli JA, Dyszkiewicz-Konwińska M, Kempisty B. Inclusion Biogenesis, Methods of Isolation and Clinical Application of Human Cellular Exosomes. J Clin Med 2020; 9:jcm9020436. [PMID: 32041096 PMCID: PMC7074492 DOI: 10.3390/jcm9020436] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 01/18/2020] [Accepted: 01/30/2020] [Indexed: 12/12/2022] Open
Abstract
Exosomes are a heterogenous subpopulation of extracellular vesicles 30–150 nm in range and of endosome-derived origin. We explored the exosome formation through different systems, including the endosomal sorting complex required for transport (ESCRT) and ESCRT-independent system, looking at the mechanisms of release. Different isolation techniques and specificities of exosomes from different tissues and cells are also discussed. Despite more than 30 years of research that followed their definition and indicated their important role in cellular physiology, the exosome biology is still in its infancy with rapidly growing interest. The reasons for the rapid increase in interest with respect to exosome biology is because they provide means of intercellular communication and transmission of macromolecules between cells, with a potential role in the development of diseases. Moreover, they have been investigated as prognostic biomarkers, with a potential for further development as diagnostic tools for neurodegenerative diseases and cancer. The interest grows further with the fact that exosomes were reported as useful vectors for drugs.
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Affiliation(s)
- Max Tschuschke
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
| | - Ievgeniia Kocherova
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
| | - Artur Bryja
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
| | - Paul Mozdziak
- Physiology Graduate Program, North Carolina State University, Raleigh, NC 27695, USA;
| | - Ana Angelova Volponi
- Centre for Craniofacial and Regenerative Biology, Faculty for Dentistry, Oral and Craniofacial Sciences, King’s College University of London, London SE1 9RT, UK;
| | - Krzysztof Janowicz
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
- The School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB25 2ZD, UK
| | - Rafał Sibiak
- Division of Reproduction, Department of Obstetrics, Gynecology, and Gynecologic Oncology, Poznan University of Medical Sciences, 60-535 Poznan, Poland;
| | | | - Dariusz Iżycki
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznań, Poland;
| | - Dorota Bukowska
- Department of Diagnostics and Clinical Sciences, Nicolaus Copernicus University in Torun, 87-100 Toruń, Poland;
| | - Paweł Antosik
- Department of Veterinary Surgery, Nicolaus Copernicus University in Torun, 87-100 Toruń, Poland;
| | - Jamil A. Shibli
- Department of Periodontology and Oral Implantology, Dental Research Division, University of Guarulhos, Guarulhos 07030-010, Brazil;
| | - Marta Dyszkiewicz-Konwińska
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
- Department of Biomaterials and Experimental Dentistry, Poznan University of Medical Sciences, 61-701 Poznan, Poland
| | - Bartosz Kempisty
- Department of Anatomy, Poznan University of Medical Sciences, 60-781 Poznań, Poland; (M.T.); (I.K.); (A.B.); (K.J.); (M.D.-K.)
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznań, Poland
- Department of Obstetrics and Gynaecology, University Hospital and Masaryk University, 601 77 Brno, Czech Republic
- Institute of Veterinary Medicine, Nicolaus Copernicus University in Toruń, 87-100 Toruń, Poland
- Correspondence: ; Tel.: +48-6185-464-18; Fax: +48-6185-464-40
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5
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Dogra N, Balaraman RP, Kohli P. Chemically Engineered Synthetic Lipid Vesicles for Sensing and Visualization of Protein-Bilayer Interactions. Bioconjug Chem 2019; 30:2136-2149. [PMID: 31314501 DOI: 10.1021/acs.bioconjchem.9b00366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
From pathogen intrusion to immune response, the cell membrane plays an important role in signal transduction. Such signals are important for cellular proliferation and survival. However, measurement of these subtle signals through the lipid membrane scaffold is challenging. We present a chromatic model membrane vesicle system engineered to covalently bind with lysine residues of protein molecules for investigation of cellular interactions and signaling. We discovered that different protein molecules induced differential spectroscopic signals, which is based on the chemical and physical properties of protein interacting at the vesicle surface. The observed chromatic response (CR) for bound protein molecules with higher molecular weight was much larger (∼5-15×) than those for low molecular weight proteins. Through mass spectrometry (MS), we found that only 6 out of 60 (10%) lysine groups present in bovine serum albumin (BSA) were accessible to the membrane of the vesicles. Finally, a "sphere-shell" model representing the protein-vesicle complex was used for evaluating the contribution of van der Waals interactions between proteins and vesicles. Our analysis points to contributions from van der Waals, hydrophobic, and electrostatic interactions toward observed CR signals resulting from molecular interactions at the vesicle membrane surface. Overall, this study provided a convenient, chromatic, semiquantitative method of detecting biomolecules and their interactions with model membranes at sub-nanomolar concentration.
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Affiliation(s)
- Navneet Dogra
- Department of Chemistry and Biochemistry , Southern Illinois University , Carbondale , Illinois 62901 , United States.,IBM T. J. Watson Research Center , Yorktown Heights , New York 10058 , United States.,Department of Genetics and Genomic Sciences , Icahn School of Medicine at Mount Sinai , New York , New York 10029 , United States
| | - Rajesh P Balaraman
- Department of Chemistry and Biochemistry , Southern Illinois University , Carbondale , Illinois 62901 , United States
| | - Punit Kohli
- Department of Chemistry and Biochemistry , Southern Illinois University , Carbondale , Illinois 62901 , United States
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6
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Serum Extracellular Vesicles Retard H9C2 Cell Senescence by Suppressing miR-34a Expression. J Cardiovasc Transl Res 2018; 12:45-50. [DOI: 10.1007/s12265-018-9847-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 11/18/2018] [Indexed: 12/11/2022]
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7
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Exosomes in Myocardial Repair: Advances and Challenges in the Development of Next-Generation Therapeutics. Mol Ther 2018; 26:1635-1643. [PMID: 29807783 DOI: 10.1016/j.ymthe.2018.04.024] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 01/08/2023] Open
Abstract
Myocardial disease is a leading cause of morbidity and mortality worldwide. Given the limited regenerative capacity of the human heart following myocardial injury, stem cell-based therapies have emerged as a promising approach for improving cardiac repair and function. The discovery of extracellular vesicles including exosomes as a key component of the beneficial function of stem cells has generated hope for their use to advance cell-based regenerative therapies for cardiac repair. Exosomes secreted from stem cells are membranous bionanovesicles, naturally loaded with various proteins, lipids, and nucleic acids. They have been found to have anti-apoptotic, anti-fibrotic, as well as pro-angiogenic effects, all of which are crucial to restore function of the damaged myocardium. In this brief review, we will focus on the latest research and debates on cardiac repair and regenerative potential of exosomes from a variety of sources such as cardiac and non-cardiac stem and progenitor cells, somatic cells, and body fluids. We will also highlight important barriers involved in translating these findings into developing clinically suitable exosome-based therapies.
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8
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Tang JN, Cores J, Huang K, Cui XL, Luo L, Zhang JY, Li TS, Qian L, Cheng K. Concise Review: Is Cardiac Cell Therapy Dead? Embarrassing Trial Outcomes and New Directions for the Future. Stem Cells Transl Med 2018; 7:354-359. [PMID: 29468830 PMCID: PMC5866934 DOI: 10.1002/sctm.17-0196] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 01/03/2018] [Accepted: 01/09/2018] [Indexed: 01/08/2023] Open
Abstract
Stem cell therapy is a promising strategy for tissue regeneration. The therapeutic benefits of cell therapy are mediated by both direct and indirect mechanisms. However, the application of stem cell therapy in the clinic is hampered by several limitations. This concise review provides a brief introduction into stem cell therapies for ischemic heart disease. It summarizes cell‐based and cell‐free paradigms, their limitations, and the benefits of using them to target disease. stemcellstranslationalmedicine2018;7:354–359
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Affiliation(s)
- Jun-Nan Tang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Jhon Cores
- Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Ke Huang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Xiao-Lin Cui
- Department of Orthopaedic Surgery, University of Otago, Christchurch, New Zealand
| | - Lan Luo
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Jin-Ying Zhang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Tao-Sheng Li
- Department of Stem Cell Biology, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Li Qian
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ke Cheng
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China.,Department of Molecular Biomedical Sciences and Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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9
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Serum Exosomes Attenuate H 2O 2-Induced Apoptosis in Rat H9C2 Cardiomyocytes via ERK1/2. J Cardiovasc Transl Res 2018; 12:37-44. [PMID: 29404859 DOI: 10.1007/s12265-018-9791-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 01/09/2018] [Indexed: 12/30/2022]
Abstract
Exosomes are small-sized vesicles that can be released from cells into the serum. Exosomes play important roles in regulating many biological processes including cell proliferation, apoptosis, cell cycle, and metabolism. However, the roles and mechanisms of plasma exosomes in the apoptosis of rat H9C2 cardiomyocytes are largely unknown. In this study, we isolated plasma exosomes as confirmed by the marker protein CD63. Using flow cytometry and western blot analysis, we found that exosomes attenuated hydrogen peroxide (H2O2)-induced apoptosis and improved survival of rat H9C2 cardiomyocytes. Furthermore, the anti-apoptosis effects of serum exosomes in rat H9C2 cardiomyocytes were mediated by the activation of ERK1/2 signaling pathway. These data indicated that plasma exosomes had the protective effects against cardiomyocyte apoptosis and might be a novel therapy strategy for myocardial injury.
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10
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Mathiyalagan P, Liang Y, Kim D, Misener S, Thorne T, Kamide CE, Klyachko E, Losordo DW, Hajjar RJ, Sahoo S. Angiogenic Mechanisms of Human CD34 + Stem Cell Exosomes in the Repair of Ischemic Hindlimb. Circ Res 2017; 120:1466-1476. [PMID: 28298297 DOI: 10.1161/circresaha.116.310557] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/04/2017] [Accepted: 03/15/2017] [Indexed: 12/20/2022]
Abstract
RATIONALE Paracrine secretions seem to mediate therapeutic effects of human CD34+ stem cells locally transplanted in patients with myocardial and critical limb ischemia and in animal models. Earlier, we had discovered that paracrine secretion from human CD34+ cells contains proangiogenic, membrane-bound nanovesicles called exosomes (CD34Exo). OBJECTIVE Here, we investigated the mechanisms of CD34Exo-mediated ischemic tissue repair and therapeutic angiogenesis by studying their miRNA content and uptake. METHODS AND RESULTS When injected into mouse ischemic hindlimb tissue, CD34Exo, but not the CD34Exo-depleted conditioned media, mimicked the beneficial activity of their parent cells by improving ischemic limb perfusion, capillary density, motor function, and their amputation. CD34Exo were found to be enriched with proangiogenic miRNAs such as miR-126-3p. Knocking down miR-126-3p from CD34Exo abolished their angiogenic activity and beneficial function both in vitro and in vivo. Interestingly, injection of CD34Exo increased miR-126-3p levels in mouse ischemic limb but did not affect the endogenous synthesis of miR-126-3p, suggesting a direct transfer of stable and functional exosomal miR-126-3p. miR-126-3p enhanced angiogenesis by suppressing the expression of its known target, SPRED1, simultaneously modulating the expression of genes involved in angiogenic pathways such as VEGF (vascular endothelial growth factor), ANG1 (angiopoietin 1), ANG2 (angiopoietin 2), MMP9 (matrix metallopeptidase 9), TSP1 (thrombospondin 1), etc. Interestingly, CD34Exo, when treated to ischemic hindlimbs, were most efficiently internalized by endothelial cells relative to smooth muscle cells and fibroblasts, demonstrating a direct role of stem cell-derived exosomes on mouse endothelium at the cellular level. CONCLUSIONS Collectively, our results have demonstrated a novel mechanism by which cell-free CD34Exo mediates ischemic tissue repair via beneficial angiogenesis. Exosome-shuttled proangiogenic miRNAs may signify amplification of stem cell function and may explain the angiogenic and therapeutic benefits associated with CD34+ stem cell therapy.
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Affiliation(s)
- Prabhu Mathiyalagan
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Yaxuan Liang
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - David Kim
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Sol Misener
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Tina Thorne
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Christine E Kamide
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Ekaterina Klyachko
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Douglas W Losordo
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Roger J Hajjar
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.)
| | - Susmita Sahoo
- From the Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York (P.M., Y.L., D.K., R.J.H., S.S.); Feinberg Cardiovascular Research Institute, Feinberg School of Medicine, Northwestern University, Chicago, IL (D.K., S.M., T.T., C.E.K., E.K., D.W.L., S.S.); and Caladrius Biosciences, New York (D.W.L.).
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11
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Sahoo S, Mathiyalagan P, Hajjar RJ. Pericardial Fluid Exosomes: A New Material to Treat Cardiovascular Disease. Mol Ther 2017; 25:568-569. [PMID: 28215995 DOI: 10.1016/j.ymthe.2017.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Susmita Sahoo
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Prabhu Mathiyalagan
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Roger J Hajjar
- Cardiovascular Research Center, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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