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Bahadorani M, Nasiri M, Dellinger K, Aravamudhan S, Zadegan R. Engineering Exosomes for Therapeutic Applications: Decoding Biogenesis, Content Modification, and Cargo Loading Strategies. Int J Nanomedicine 2024; 19:7137-7164. [PMID: 39050874 PMCID: PMC11268655 DOI: 10.2147/ijn.s464249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 06/20/2024] [Indexed: 07/27/2024] Open
Abstract
Exosomes emerge from endosomal invagination and range in size from 30 to 200 nm. Exosomes contain diverse proteins, lipids, and nucleic acids, which can indicate the state of various physiological and pathological processes. Studies have revealed the remarkable clinical potential of exosomes in diagnosing and prognosing multiple diseases, including cancer, cardiovascular disorders, and neurodegenerative conditions. Exosomes also have the potential to be engineered and deliver their cargo to a specific target. However, further advancements are imperative to optimize exosomes' diagnostic and therapeutic capabilities for practical implementation in clinical settings. This review highlights exosomes' diagnostic and therapeutic applications, emphasizing their engineering through simple incubation, biological, and click chemistry techniques. Additionally, the loading of therapeutic agents onto exosomes, utilizing passive and active strategies, and exploring hybrid and artificial exosomes are discussed.
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Affiliation(s)
- Mehrnoosh Bahadorani
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, Greensboro, NC, USA
| | - Mahboobeh Nasiri
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, Greensboro, NC, USA
| | - Kristen Dellinger
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, Greensboro, NC, USA
| | - Shyam Aravamudhan
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, Greensboro, NC, USA
| | - Reza Zadegan
- Department of Nanoengineering, Joint School of Nanoscience & Nanoengineering, North Carolina Agriculture and Technical State University, Greensboro, NC, USA
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2
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Liu L, Liu D. Bioengineered mesenchymal stem cell-derived exosomes: emerging strategies for diabetic wound healing. BURNS & TRAUMA 2024; 12:tkae030. [PMID: 39015252 PMCID: PMC11250359 DOI: 10.1093/burnst/tkae030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 05/10/2024] [Indexed: 07/18/2024]
Abstract
Diabetic wounds are among the most common complications of diabetes mellitus and their healing process can be delayed due to persistent inflammatory reactions, bacterial infections, damaged vascularization and impaired cell proliferation, which casts a blight on patients'health and quality of life. Therefore, new strategies to accelerate diabetic wound healing are being positively explored. Exosomes derived from mesenchymal stem cells (MSC-Exos) can inherit the therapeutic and reparative abilities of stem cells and play a crucial role in diabetic wound healing. However, poor targeting, low concentrations of therapeutic molecules, easy removal from wounds and limited yield of MSC-Exos are challenging for clinical applications. Bioengineering techniques have recently gained attention for their ability to enhance the efficacy and yield of MSC-Exos. In this review, we summarise the role of MSC-Exos in diabetic wound healing and focus on three bioengineering strategies, namely, parental MSC-Exos engineering, direct MSC-Exos engineering and MSC-Exos combined with biomaterials. Furthermore, the application of bioengineered MSC-Exos in diabetic wound healing is reviewed. Finally, we discuss the future prospects of bioengineered MSC-Exos, providing new insights into the exploration of therapeutic strategies.
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Affiliation(s)
- Lihua Liu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yongwaizheng Road, Donghu District, Nanchang, Jiangxi, P.R. China
- Huankui Academy, Nanchang University, Xuefu Road, Honggutan District, Nanchang, Jiangxi, 330006, P.R. China
| | - Dewu Liu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Yongwaizheng Road, Donghu District, Nanchang, Jiangxi, P.R. China
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3
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Chen J, Zhang E, Wan Y, Huang T, Wang Y, Jiang H. A quick and innovative pipeline for producing chondrocyte-homing peptide-modified extracellular vesicles by three-dimensional dynamic culture of hADSCs spheroids to modulate the fate of remaining ear chondrocytes in the M1 macrophage-infiltrated microenvironment. J Nanobiotechnology 2024; 22:300. [PMID: 38816719 PMCID: PMC11141023 DOI: 10.1186/s12951-024-02567-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
BACKGROUND Extracellular vesicles (EVs) derived from human adipose-derived mesenchymal stem cells (hADSCs) have shown great therapeutic potential in plastic and reconstructive surgery. However, the limited production and functional molecule loading of EVs hinder their clinical translation. Traditional two-dimensional culture of hADSCs results in stemness loss and cellular senescence, which is unfavorable for the production and functional molecule loading of EVs. Recent advances in regenerative medicine advocate for the use of three-dimensional culture of hADSCs to produce EVs, as it more accurately simulates their physiological state. Moreover, the successful application of EVs in tissue engineering relies on the targeted delivery of EVs to cells within biomaterial scaffolds. METHODS AND RESULTS The hADSCs spheroids and hADSCs gelatin methacrylate (GelMA) microspheres are utilized to produce three-dimensional cultured EVs, corresponding to hADSCs spheroids-EVs and hADSCs microspheres-EVs respectively. hADSCs spheroids-EVs demonstrate excellent production and functional molecule loading compared with hADSCs microspheres-EVs. The upregulation of eight miRNAs (i.e. hsa-miR-486-5p, hsa-miR-423-5p, hsa-miR-92a-3p, hsa-miR-122-5p, hsa-miR-223-3p, hsa-miR-320a, hsa-miR-126-3p, and hsa-miR-25-3p) and the downregulation of hsa-miR-146b-5p within hADSCs spheroids-EVs show the potential of improving the fate of remaining ear chondrocytes and promoting cartilage formation probably through integrated regulatory mechanisms. Additionally, a quick and innovative pipeline is developed for isolating chondrocyte homing peptide-modified EVs (CHP-EVs) from three-dimensional dynamic cultures of hADSCs spheroids. CHP-EVs are produced by genetically fusing a CHP at the N-terminus of the exosomal surface protein LAMP2B. The CHP + LAMP2B-transfected hADSCs spheroids were cultured with wave motion to promote the secretion of CHP-EVs. A harvesting method is used to enable the time-dependent collection of CHP-EVs. The pipeline is easy to set up and quick to use for the isolation of CHP-EVs. Compared with nontagged EVs, CHP-EVs penetrate the biomaterial scaffolds and specifically deliver the therapeutic miRNAs to the remaining ear chondrocytes. Functionally, CHP-EVs show a major effect on promoting cell proliferation, reducing cell apoptosis and enhancing cartilage formation in remaining ear chondrocytes in the M1 macrophage-infiltrated microenvironment. CONCLUSIONS In summary, an innovative pipeline is developed to obtain CHP-EVs from three-dimensional dynamic culture of hADSCs spheroids. This pipeline can be customized to increase EVs production and functional molecule loading, which meets the requirements for regulating remaining ear chondrocyte fate in the M1 macrophage-infiltrated microenvironment.
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Affiliation(s)
- Jianguo Chen
- Chinese Academy of Medical Sciences & Peking Union Medical College Plastic Surgery Hospital and Institute, Shijingshan District, Beijing, 100144, China
| | - Enchong Zhang
- Department of Urology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang, 110004, China.
| | - Yingying Wan
- DongFang Hospital of Beijing University of Chinese Medicine, Fengtai District, Beijing, 100078, China.
| | - Tianyu Huang
- Chinese Academy of Medical Sciences & Peking Union Medical College Plastic Surgery Hospital and Institute, Shijingshan District, Beijing, 100144, China
| | - Yuchen Wang
- Chinese Academy of Medical Sciences & Peking Union Medical College Plastic Surgery Hospital and Institute, Shijingshan District, Beijing, 100144, China
| | - Haiyue Jiang
- Chinese Academy of Medical Sciences & Peking Union Medical College Plastic Surgery Hospital and Institute, Shijingshan District, Beijing, 100144, China.
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Huang X, Li A, Xu P, Yu Y, Li S, Hu L, Feng S. Current and prospective strategies for advancing the targeted delivery of CRISPR/Cas system via extracellular vesicles. J Nanobiotechnology 2023; 21:184. [PMID: 37291577 DOI: 10.1186/s12951-023-01952-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 06/02/2023] [Indexed: 06/10/2023] Open
Abstract
Extracellular vesicles (EVs) have emerged as a promising platform for gene delivery owing to their natural properties and phenomenal functions, being able to circumvent the significant challenges associated with toxicity, problematic biocompatibility, and immunogenicity of the standard approaches. These features are of particularly interest for targeted delivery of the emerging clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) systems. However, the current efficiency of EV-meditated transport of CRISPR/Cas components remains insufficient due to numerous exogenous and endogenous barriers. Here, we comprehensively reviewed the current status of EV-based CRISPR/Cas delivery systems. In particular, we explored various strategies and methodologies available to potentially improve the loading capacity, safety, stability, targeting, and tracking for EV-based CRISPR/Cas system delivery. Additionally, we hypothesise the future avenues for the development of EV-based delivery systems that could pave the way for novel clinically valuable gene delivery approaches, and may potentially bridge the gap between gene editing technologies and the laboratory/clinical application of gene therapies.
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Affiliation(s)
- Xiaowen Huang
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Aifang Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Peng Xu
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Yangfan Yu
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Shuxuan Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Lina Hu
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China
| | - Shuying Feng
- Medical College, Henan University of Chinese Medicine, Zhengzhou, 450056, Henan, China.
- Department of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, Henan, China.
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Kelwick RJR, Webb AJ, Heliot A, Segura CT, Freemont PS. Opportunities to accelerate extracellular vesicle research with cell-free synthetic biology. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e90. [PMID: 38938277 PMCID: PMC11080881 DOI: 10.1002/jex2.90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 04/03/2023] [Accepted: 05/05/2023] [Indexed: 06/29/2024]
Abstract
Extracellular vesicles (EVs) are lipid-membrane nanoparticles that are shed or secreted by many different cell types. The EV research community has rapidly expanded in recent years and is leading efforts to deepen our understanding of EV biological functions in human physiology and pathology. These insights are also providing a foundation on which future EV-based diagnostics and therapeutics are poised to positively impact human health. However, current limitations in our understanding of EV heterogeneity, cargo loading mechanisms and the nascent development of EV metrology are all areas that have been identified as important scientific challenges. The field of synthetic biology is also contending with the challenge of understanding biological complexity as it seeks to combine multidisciplinary scientific knowledge with engineering principles, to build useful and robust biotechnologies in a responsible manner. Within this context, cell-free systems have emerged as a powerful suite of in vitro biotechnologies that can be employed to interrogate fundamental biological mechanisms, including the study of aspects of EV biogenesis, or to act as a platform technology for medical biosensors and therapeutic biomanufacturing. Cell-free gene expression (CFE) systems also enable in vitro protein production, including membrane proteins, and could conceivably be exploited to rationally engineer, or manufacture, EVs loaded with bespoke molecular cargoes for use in foundational or translational EV research. Our pilot data herein, also demonstrates the feasibility of cell-free EV engineering. In this perspective, we discuss the opportunities and challenges for accelerating EV research and healthcare applications with cell-free synthetic biology.
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Affiliation(s)
- Richard J. R. Kelwick
- Section of Structural and Synthetic BiologyDepartment of Infectious DiseaseImperial College LondonLondonUK
| | - Alexander J. Webb
- Section of Structural and Synthetic BiologyDepartment of Infectious DiseaseImperial College LondonLondonUK
| | - Amelie Heliot
- Section of Structural and Synthetic BiologyDepartment of Infectious DiseaseImperial College LondonLondonUK
| | | | - Paul S. Freemont
- Section of Structural and Synthetic BiologyDepartment of Infectious DiseaseImperial College LondonLondonUK
- The London BiofoundryImperial College Translation & Innovation HubLondonUK
- UK Dementia Research Institute Care Research and Technology CentreImperial College London, Hammersmith CampusLondonUK
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Zheng W, He R, Liang X, Roudi S, Bost J, Coly P, van Niel G, Andaloussi SEL. Cell-specific targeting of extracellular vesicles through engineering the glycocalyx. J Extracell Vesicles 2022; 11:e12290. [PMID: 36463392 PMCID: PMC9719568 DOI: 10.1002/jev2.12290] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
Extracellular vesicles (EVs) are promising carriers for the delivery of a variety of chemical and biological drugs. However, their efficacy is limited by the lack of cellular specificity. Available methods to improve the tissue specificity of EVs predominantly rely on surface display of proteins and peptides, largely overlooking the dense glycocalyx that constitutes the outermost layer of EVs. In the present study, we report a reconfigurable glycoengineering strategy that can endogenously display glycans of interest on EV surface. Briefly, EV producer cells are genetically engineered to co-express a glycosylation domain (GD) inserted into the large extracellular loop of CD63 (a well-studied EV scaffold protein) and fucosyltransferase VII (FUT7) or IX (FUT9), so that the engineered EVs display the glycan of interest. Through this strategy, we showcase surface display of two types of glycan ligands, sialyl Lewis X (sLeX) and Lewis X, on EVs and achieve high specificity towards activated endothelial cells and dendritic cells, respectively. Moreover, the endothelial cell-targeting properties of sLeX-EVs were combined with the intrinsic therapeutic effects of mesenchymal stem cells (MSCs), leading to enhanced attenuation of endothelial damage. In summary, this study presents a reconfigurable glycoengineering strategy to produce EVs with strong cellular specificity and highlights the glycocalyx as an exploitable trait for engineering EVs.
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Affiliation(s)
- Wenyi Zheng
- Biomolecular Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
| | - Rui He
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
- Experimental Cancer Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
| | - Xiuming Liang
- Biomolecular Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
| | - Samantha Roudi
- Biomolecular Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
| | - Jeremy Bost
- Biomolecular Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
| | - Pierre‐Michael Coly
- Université de Paris, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266ParisFrance
- GHU Paris Psychiatrie et NeurosciencesHôpital Sainte AnneParisFrance
| | - Guillaume van Niel
- Université de Paris, Institute of Psychiatry and Neuroscience of Paris (IPNP), INSERM U1266ParisFrance
- GHU Paris Psychiatrie et NeurosciencesHôpital Sainte AnneParisFrance
| | - Samir E. L. Andaloussi
- Biomolecular Medicine, Division of Biomolecular and Cellular Medicine, Department of Laboratory MedicineKarolinska InstitutetHuddingeSweden
- Centre for Allogeneic Stem Cell Transplantation (CAST)Karolinska University HospitalHuddingeSweden
- EVOX Therapeutics LimitedOxfordUK
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Genetically Engineered Extracellular Vesicles Harboring Transmembrane Scaffolds Exhibit Differences in Their Size, Expression Levels of Specific Surface Markers and Cell-Uptake. Pharmaceutics 2022; 14:pharmaceutics14122564. [PMID: 36559058 PMCID: PMC9783873 DOI: 10.3390/pharmaceutics14122564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Human cell-secreted extracellular vesicles (EVs) are versatile nanomaterials suitable for disease-targeted drug delivery and therapy. Native EVs, however, usually do not interact specifically with target cells or harbor therapeutic drugs, which limits their potential for clinical applications. These functions can be introduced to EVs by genetic manipulation of membrane protein scaffolds, although the efficiency of these manipulations and the impacts they have on the properties of EVs are for the most part unknown. In this study, we quantify the effects of genetic manipulations of different membrane scaffolds on the physicochemical properties, molecular profiles, and cell uptake of the EVs. METHODS Using a combination of gene fusion, molecular imaging, and immuno-based on-chip analysis, we examined the effects of various protein scaffolds, including endogenous tetraspanins (CD9, CD63, and CD81) and exogenous vesicular stomatitis virus glycoprotein (VSVG), on the efficiency of integration in EV membranes, the physicochemical properties of EVs, and EV uptake by recipient cells. RESULTS Fluorescence imaging and live cell monitoring showed each scaffold type was integrated into EVs either in membranes of the endocytic compartment, the plasma membrane, or both. Analysis of vesicle size revealed that the incorporation of each scaffold increased the average diameter of vesicles compared to unmodified EVs. Molecular profiling of surface markers in engineered EVs using on-chip assays showed the CD63-GFP scaffold decreased expression of CD81 on the membrane surface compared to control EVs, whereas its expression was mostly unchanged in EVs bearing CD9-, CD81-, or VSVG-GFP. The results from cell uptake studies demonstrated that VSVG-engineered EVs were taken up by recipient cells to a greater degree than control EVs. CONCLUSION We found that the incorporation of different molecular scaffolds in EVs altered their physicochemical properties, surface protein profiles, and cell-uptake functions. Scaffold-induced changes in the physical and functional properties of engineered EVs should therefore be considered in engineering EVs for the targeted delivery and uptake of therapeutics to diseased cells.
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Liu Q, Huang J, Xia J, Liang Y, Li G. Tracking tools of extracellular vesicles for biomedical research. Front Bioeng Biotechnol 2022; 10:943712. [PMID: 36466335 PMCID: PMC9716315 DOI: 10.3389/fbioe.2022.943712] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 11/03/2022] [Indexed: 08/02/2023] Open
Abstract
Imaging of extracellular vesicles (EVs) will facilitate a better understanding of their biological functions and their potential as therapeutics and drug delivery vehicles. In order to clarify EV-mediated cellular communication in vitro and to track the bio-distribution of EV in vivo, various strategies have been developed to label and image EVs. In this review, we summarized recent advances in the tracking of EVs, demonstrating the methods for labeling and imaging of EVs, in which the labeling methods include direct and indirect labeling and the imaging modalities include fluorescent imaging, bioluminescent imaging, nuclear imaging, and nanoparticle-assisted imaging. These techniques help us better understand the mechanism of uptake, the bio-distribution, and the function of EVs. More importantly, we can evaluate the pharmacokinetic properties of EVs, which will help promote their further clinical application.
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Affiliation(s)
- Qisong Liu
- Shenzhen Key Laboratory of Musculoskeletal Tissue Reconstruction and Function Restoration, Department of Orthopaedic Surgery, Shenzhen People’s Hospital (The Second Clinical Medical College of Jinan University), Shenzhen, China
| | - Jianghong Huang
- Department of Orthopedics, Shenzhen Second People’s Hospital (First Affiliated Hospital of Shenzhen University, Health Science Center), Shenzhen, China
- Tsinghua University Shenzhen International Graduate School, Shenzhen, China
| | - Jiang Xia
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Yujie Liang
- Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
- Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Guangheng Li
- Shenzhen Key Laboratory of Musculoskeletal Tissue Reconstruction and Function Restoration, Department of Orthopaedic Surgery, Shenzhen People’s Hospital (The Second Clinical Medical College of Jinan University), Shenzhen, China
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Alptekin A, Parvin M, Chowdhury HI, Rashid MH, Arbab AS. Engineered exosomes for studies in tumor immunology. Immunol Rev 2022; 312:76-102. [PMID: 35808839 DOI: 10.1111/imr.13107] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 05/27/2022] [Indexed: 12/14/2022]
Abstract
Exosomes are a type of extracellular vesicle (EV) with diameters of 30-150 nm secreted by most of the cells into the extracellular spaces and can alter the microenvironment through cell-to-cell interactions by fusion with the plasma membrane and subsequent endocytosis and release of the cargo. Because of their biocompatibility, low toxicity and immunogenicity, permeability (even through the blood-brain barrier (BBB)), stability in biological fluids, and ability to accumulate in the lesions with higher specificity, investigators have started making designer's exosomes or engineered exosomes to carry biologically active protein on the surface or inside the exosomes as well as using exosomes to carry drugs, micro RNA, and other products to the site of interest. In this review, we have discussed biogenesis, markers, and contents of various exosomes including exosomes of immune cells. We have also discussed the current methods of making engineered and designer's exosomes as well as the use of engineered exosomes targeting different immune cells in the tumors, stroke, as well as at peripheral blood. Genetic engineering and customizing exosomes create an unlimited opportunity to use in diagnosis and treatment. Very little use has been discovered, and we are far away to reach its limits.
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Affiliation(s)
- Ahmet Alptekin
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Mahrima Parvin
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | | | | | - Ali S Arbab
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
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Hao M, Duan M, Yang Z, Zhou H, Li S, Xiang J, Wu H, Liu H, Chang L, Wang D, Liu W. Engineered stem cell exosomes for oral and maxillofacial wound healing. Front Bioeng Biotechnol 2022; 10:1038261. [PMID: 36353739 PMCID: PMC9637828 DOI: 10.3389/fbioe.2022.1038261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/13/2022] [Indexed: 09/12/2023] Open
Abstract
Wound healing of the oral and maxillofacial area affects the quality of life and mental health of the patient; therefore, effective therapies are required to promote wound healing. However, traditional treatment methods have limited efficacy. Exosomes secreted by stem cells used for oral and maxillofacial wound healing have shown outstanding results. Stem cell-derived exosomes possess the regenerative and repair ability of stem cells. Moreover, they are nontumorigenic and have good biosafety. However, the application of natural stem cell exosomes is limited owing to their low yield, impurity, lack of targeting, and low drug delivery rate. Many modification methods have been developed to engineered stem cell exosomes with beneficial properties, such as modifying parent cells and directly processing stem cell exosomes. These methods include coincubation, genetic engineering, electroporation, ultrasound, and artificial synthesis of engineered stem cell exosomes. These engineered stem cell exosomes can cargo nucleic acids, proteins, and small molecules. This gives them anti-inflammatory and cell proliferation regulatory abilities and enables the targeted promotion of efficient soft tissue repair after trauma. Engineered stem cell exosomes can decrease inflammation, promote fibroblast proliferation, and angiogenesis, and decrease scar formation to promote oral and maxillofacial wound healing, including diabetic and burn wounds. Thus, engineered stem cell exosomes are an effective treatment that has the potential for oral and maxillofacial wound healing.
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Affiliation(s)
- Ming Hao
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - MengNa Duan
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, China
| | - Zhijing Yang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Hengzong Zhou
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Shuangji Li
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Jingcheng Xiang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Han Wu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Huimin Liu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Lu Chang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Dongxu Wang
- Laboratory Animal Center, College of Animal Science, Jilin University, Changchun, China
| | - Weiwei Liu
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
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Aguirre RS, Kulkarni A, Becker MW, Lei X, Sarkar S, Ramanadham S, Phelps EA, Nakayasu ES, Sims EK, Mirmira RG. Extracellular vesicles in β cell biology: Role of lipids in vesicle biogenesis, cargo, and intercellular signaling. Mol Metab 2022; 63:101545. [PMID: 35817393 PMCID: PMC9294332 DOI: 10.1016/j.molmet.2022.101545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/03/2022] [Accepted: 07/05/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Type 1 diabetes (T1D) is a complex autoimmune disorder whose pathogenesis involves an intricate interplay between β cells of the pancreatic islet, other islet cells, and cells of the immune system. Direct intercellular communication within the islet occurs via cell surface proteins and indirect intercellular communication has traditionally been seen as occurring via secreted proteins (e.g., endocrine hormones and cytokines). However, recent literature suggests that extracellular vesicles (EVs) secreted by β cells constitute an additional and biologically important mechanism for transmitting signals to within the islet. SCOPE OF REVIEW This review summarizes the general mechanisms of EV formation, with a particular focus on how lipids and lipid signaling pathways influence their formation and cargo. We review the implications of EV release from β cells for T1D pathogenesis, how EVs and their cargo might be leveraged as biomarkers of this process, and how EVs might be engineered as a therapeutic candidate to counter T1D outcomes. MAJOR CONCLUSIONS Islet β cells have been viewed as initiators and propagators of the cellular circuit giving rise to autoimmunity in T1D. In this context, emerging literature suggests that EVs may represent a conduit for communication that holds more comprehensive messaging about the β cells from which they arise. As the field of EV biology advances, it opens the possibility that intervening with EV formation and cargo loading could be a novel disease-modifying approach in T1D.
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Affiliation(s)
| | - Abhishek Kulkarni
- Department of Medicine and the Kovler Diabetes Center, The University of Chicago, Chicago, IL, USA
| | - Matthew W. Becker
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Xiaoyong Lei
- Department of Cell, Developmental, and Integrative Biology & The Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Soumyadeep Sarkar
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Sasanka Ramanadham
- Department of Cell, Developmental, and Integrative Biology & The Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Edward A. Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Ernesto S. Nakayasu
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Emily K. Sims
- Department of Pediatrics and the Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Raghavendra G. Mirmira
- Department of Medicine and the Kovler Diabetes Center, The University of Chicago, Chicago, IL, USA,Corresponding author. 900 E. 57th St., KCBD 8130, Chicago, IL, 60637, USA.
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12
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International Conference on Lymphocyte Engineering 31 March–2 April 2022 Munich, Germany. Hum Gene Ther 2022. [DOI: 10.1089/hum.2022.29200.abstracts] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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13
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Scott TA, Supramaniam A, Idris A, Cardoso AA, Shrivastava S, Kelly G, Grepo NA, Soemardy C, Ray RM, McMillan NA, Morris KV. Engineered extracellular vesicles directed to the spike protein inhibit SARS-CoV-2. Mol Ther Methods Clin Dev 2022; 24:355-366. [PMID: 35127966 PMCID: PMC8806709 DOI: 10.1016/j.omtm.2022.01.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/28/2022] [Indexed: 12/28/2022]
Abstract
SARS-CoV-2 (CoV-2) viral infection results in COVID-19 disease, which has caused significant morbidity and mortality worldwide. A vaccine is crucial to curtail the spread of SARS-CoV-2, while therapeutics will be required to treat ongoing and reemerging infections of SARS-CoV-2 and COVID-19 disease. There are currently no commercially available effective anti-viral therapies for COVID-19, urging the development of novel modalities. Here, we describe a molecular therapy specifically targeted to neutralize SARS-CoV-2, which consists of extracellular vesicles (EVs) containing a novel fusion tetraspanin protein, CD63, embedded within an anti-CoV-2 nanobody. These anti-CoV-2-enriched EVs bind SARS-CoV-2 spike protein at the receptor-binding domain (RBD) site and can functionally neutralize SARS-CoV-2. This work demonstrates an innovative EV-targeting platform that can be employed to target and inhibit the early stages of SARS-CoV-2 infection.
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Affiliation(s)
- Tristan A. Scott
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Aroon Supramaniam
- Menzies Health Institute Queensland, School of Pharmacy and Medical Science, Griffith University, Gold Coast Campus, Brisbane 4222, Australia
| | - Adi Idris
- Menzies Health Institute Queensland, School of Pharmacy and Medical Science, Griffith University, Gold Coast Campus, Brisbane 4222, Australia
| | - Angelo A. Cardoso
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Surya Shrivastava
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Gabrielle Kelly
- Menzies Health Institute Queensland, School of Pharmacy and Medical Science, Griffith University, Gold Coast Campus, Brisbane 4222, Australia
| | - Nicole A. Grepo
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Citradewi Soemardy
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Roslyn M. Ray
- Center for Gene Therapy, City of Hope, Beckman Research Institute and Hematological Malignancy and Stem Cell Transplantation Institute at the City of Hope, 1500 E. Duarte Road, Duarte, CA 91010, USA
| | - Nigel A.J. McMillan
- Menzies Health Institute Queensland, School of Pharmacy and Medical Science, Griffith University, Gold Coast Campus, Brisbane 4222, Australia
| | - Kevin V. Morris
- Menzies Health Institute Queensland, School of Pharmacy and Medical Science, Griffith University, Gold Coast Campus, Brisbane 4222, Australia
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14
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Abstract
Exosomes are nano-sized extracellular vesicles (30–160 nm diameter) with lipid bilayer membrane secrete by various cells that mediate the communication between cells and tissue, which contain a variety of non-coding RNAs, mRNAs, proteins, lipids and other functional substances. Adipose tissue is important energy storage and endocrine organ in the organism. Recent studies have revealed that adipose tissue-derived exosomes (AT-Exosomes) play a critical role in many physiologically and pathologically functions. Physiologically, AT-Exosomes could regulate the metabolic homoeostasis of various organs or cells including liver and skeletal muscle. Pathologically, they could be used in the treatment of disease and or that they may be involved in the progression of the disease. In this review, we describe the basic principles and methods of exosomes isolation and identification, as well as further summary the specific methods. Moreover, we categorize the relevant studies of AT-Exosomes and summarize the different components and biological functions of mammalian exosomes. Most importantly, we elaborate AT-Exosomes crosstalk within adipose tissue and their functions on other tissues or organs from the physiological and pathological perspective. Based on the above analysis, we discuss what remains to be discovered problems in AT-Exosomes studies and prospect their directions needed to be further explored in the future.
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Affiliation(s)
- Rui Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Tiantian Zhao
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Zhaozhao He
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Rui Cai
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
| | - Weijun Pang
- Laboratory of Animal Fat Deposition & Muscle Development, College of Animal Science and Technology, Northwest A&f University, Yangling, China
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15
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Chen H, Wang L, Zeng X, Schwarz H, Nanda HS, Peng X, Zhou Y. Exosomes, a New Star for Targeted Delivery. Front Cell Dev Biol 2021; 9:751079. [PMID: 34692704 PMCID: PMC8531489 DOI: 10.3389/fcell.2021.751079] [Citation(s) in RCA: 134] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Exosomes are cell-secreted nanoparticles (generally with a size of 30–150 nm) bearing numerous biological molecules including nucleic acids, proteins and lipids, which are thought to play important roles in intercellular communication. As carriers, exosomes hold promise as advanced platforms for targeted drug/gene delivery, owing to their unique properties, such as innate stability, low immunogenicity and excellent tissue/cell penetration capacity. However, their practical applications can be limited due to insufficient targeting ability or low efficacy in some cases. In order to overcome these existing challenges, various approaches have been applied to engineer cell-derived exosomes for a higher selectivity and effectiveness. This review presents the state-of-the-art designs and applications of advanced exosome-based systems for targeted cargo delivery. By discussing experts’ opinions, we hope this review will inspire the researchers in this field to develop more practical exosomal delivery systems for clinical applications.
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Affiliation(s)
- Huizhi Chen
- School of Pharmacy, Guangdong Medical University, Dongguan, China
| | - Liyan Wang
- School of Pharmacy, Guangdong Medical University, Dongguan, China
| | - Xinling Zeng
- School of Pharmacy, Guangdong Medical University, Dongguan, China.,Key Laboratory of Chinese Medicinal Resource From Lingnan, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Herbert Schwarz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Himansu Sekhar Nanda
- Biomedical Engineering and Technology Laboratory, Department of Mechanical Engineering, PDPM-Indian Institute of Information Technology, Design and Manufacturing, Jabalpur, India
| | - Xinsheng Peng
- School of Pharmacy, Guangdong Medical University, Dongguan, China.,Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, China
| | - Yubin Zhou
- School of Pharmacy, Guangdong Medical University, Dongguan, China.,Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, China
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16
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Claridge B, Lozano J, Poh QH, Greening DW. Development of Extracellular Vesicle Therapeutics: Challenges, Considerations, and Opportunities. Front Cell Dev Biol 2021; 9:734720. [PMID: 34616741 PMCID: PMC8488228 DOI: 10.3389/fcell.2021.734720] [Citation(s) in RCA: 83] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/30/2021] [Indexed: 12/12/2022] Open
Abstract
Extracellular vesicles (EVs) hold great promise as therapeutic modalities due to their endogenous characteristics, however, further bioengineering refinement is required to address clinical and commercial limitations. Clinical applications of EV-based therapeutics are being trialed in immunomodulation, tissue regeneration and recovery, and as delivery vectors for combination therapies. Native/biological EVs possess diverse endogenous properties that offer stability and facilitate crossing of biological barriers for delivery of molecular cargo to cells, acting as a form of intercellular communication to regulate function and phenotype. Moreover, EVs are important components of paracrine signaling in stem/progenitor cell-based therapies, are employed as standalone therapies, and can be used as a drug delivery system. Despite remarkable utility of native/biological EVs, they can be improved using bio/engineering approaches to further therapeutic potential. EVs can be engineered to harbor specific pharmaceutical content, enhance their stability, and modify surface epitopes for improved tropism and targeting to cells and tissues in vivo. Limitations currently challenging the full realization of their therapeutic utility include scalability and standardization of generation, molecular characterization for design and regulation, therapeutic potency assessment, and targeted delivery. The fields' utilization of advanced technologies (imaging, quantitative analyses, multi-omics, labeling/live-cell reporters), and utility of biocompatible natural sources for producing EVs (plants, bacteria, milk) will play an important role in overcoming these limitations. Advancements in EV engineering methodologies and design will facilitate the development of EV-based therapeutics, revolutionizing the current pharmaceutical landscape.
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Affiliation(s)
- Bethany Claridge
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - Jonathan Lozano
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, VIC, Australia
| | - Qi Hui Poh
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - David W. Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, VIC, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Central Clinical School, Monash University, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, Australia
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17
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Shafiei M, Ansari MNM, Razak SIA, Khan MUA. A Comprehensive Review on the Applications of Exosomes and Liposomes in Regenerative Medicine and Tissue Engineering. Polymers (Basel) 2021; 13:2529. [PMID: 34372132 PMCID: PMC8347192 DOI: 10.3390/polym13152529] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
Tissue engineering and regenerative medicine are generally concerned with reconstructing cells, tissues, or organs to restore typical biological characteristics. Liposomes are round vesicles with a hydrophilic center and bilayers of amphiphiles which are the most influential family of nanomedicine. Liposomes have extensive research, engineering, and medicine uses, particularly in a drug delivery system, genes, and vaccines for treatments. Exosomes are extracellular vesicles (EVs) that carry various biomolecular cargos such as miRNA, mRNA, DNA, and proteins. As exosomal cargo changes with adjustments in parent cells and position, research of exosomal cargo constituents provides a rare chance for sicknesses prognosis and care. Exosomes have a more substantial degree of bioactivity and immunogenicity than liposomes as they are distinctly chiefly formed by cells, which improves their steadiness in the bloodstream, and enhances their absorption potential and medicinal effectiveness in vitro and in vivo. In this review, the crucial challenges of exosome and liposome science and their functions in disease improvement and therapeutic applications in tissue engineering and regenerative medicine strategies are prominently highlighted.
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Affiliation(s)
- Mojtaba Shafiei
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia; (M.S.); (M.U.A.K.)
| | | | - Saiful Izwan Abd Razak
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia; (M.S.); (M.U.A.K.)
| | - Muhammad Umar Aslam Khan
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia; (M.S.); (M.U.A.K.)
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18
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Levy D, Do MA, Zhang J, Brown A, Lu B. Orchestrating Extracellular Vesicle With Dual Reporters for Imaging and Capturing in Mammalian Cell Culture. Front Mol Biosci 2021; 8:680580. [PMID: 34222335 PMCID: PMC8249585 DOI: 10.3389/fmolb.2021.680580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/31/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Recent technological advancements have enabled live-cell imaging of intracellular organelles to monitor their biogenesis in mammalian cells. However, applying this method to gain insight into extracellular organelles, such as extracellular vesicles (EVs), presents unique challenges that require special considerations in design and engineering. Results: We have developed a dual-reporter system that combines genetic fusion, fluorescence microcopy and magnetic beads capture of EVs to study the biogenesis of EVs in mammalian cell cultures. First, we genetically produced a series of reporters by fusing a green fluorescent protein (GFP) and an affinity peptide (6xHis), with either the endogenous transmembrane protein, CD63, or EVs targeting vesicular stomatitis viral glycoprotein (VSVG). Transfection of these reporters into human 293T cells resulted in expression and integration of these reporters into pre-exosome compartments, which were subsequently released into the culture medium. Confocal imaging and nano-particle tracking analysis demonstrated that EVs were appropriately labeled and exhibited a single dominant peak in the 80–110 nm size range, indicating that isolated EVs were comprised of micro-vesicles and/or exosome subpopulations. Incubation of isolated EVs with nickel-coated magnetic beads resulted in successful capture of GFP-positive EVs. Finally, addition of EVs into culture medium was able to reveal the cellular uptake of GFP-labeled EVs by recipient cells. Taken together, our dual-reporter system provides a powerful method for both monitoring and capturing of EVs in mammalian cell culture systems. Conclusion: A dual-reporter system provides a robust tool to study the life cycle of EVs in mammalian cells from biogenesis and excretion to cellular uptake.
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Affiliation(s)
- Daniel Levy
- Department of Bioengineering, School of Engineering, Santa Clara University, Santa Clara, CA, United States
| | - Mai Anh Do
- Department of Bioengineering, School of Engineering, Santa Clara University, Santa Clara, CA, United States
| | - Jiayi Zhang
- Department of Bioengineering, School of Engineering, Santa Clara University, Santa Clara, CA, United States
| | - Annie Brown
- Department of Bioengineering, School of Engineering, Santa Clara University, Santa Clara, CA, United States
| | - Biao Lu
- Department of Bioengineering, School of Engineering, Santa Clara University, Santa Clara, CA, United States
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19
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Biofunctional Peptide-Modified Extracellular Vesicles Enable Effective Intracellular Delivery via the Induction of Macropinocytosis. Processes (Basel) 2021. [DOI: 10.3390/pr9020224] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We previously reported that macropinocytosis (accompanied by actin reorganization, ruffling of the plasma membrane, and engulfment of large volumes of extracellular fluid) is an important process for the cellular uptake of extracellular vesicles, exosomes. Accordingly, we developed techniques to induce macropinocytosis by the modification of biofunctional peptides on exosomal membranes, thereby enhancing their cellular uptake. Arginine-rich cell-penetrating peptides have been shown to induce macropinocytosis via proteoglycans; accordingly, we developed peptide-modified exosomes that could actively induce macropinocytotic uptake by cells. In addition, the activation of EGFR induces macropinocytosis; based on this knowledge, we developed artificial leucine-zipper peptide (K4)-modified exosomes. These exosomes can recognize E3 sequence-fused EGFR (E3-EGFR), leading to the clustering and activation of E3-EGFR by coiled-coil formation (E3/K4), which induces cellular exosome uptake by macropinocytosis. In addition, modification of pH-sensitive fusogenic peptides (e.g., GALA) also enhances the cytosolic release of exosomal contents. These experimental techniques and findings using biofunctional peptides have contributed to the development of exosome-based intracellular delivery systems.
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20
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Moon J, Lim J, Lee S, Son HY, Rho HW, Kim H, Kang H, Jeong J, Lim EK, Jung J, Huh YM, Park HG, Kang T. Urinary exosomal mRNA detection using novel isothermal gene amplification method based on three-way junction. Biosens Bioelectron 2020; 167:112474. [PMID: 32798804 DOI: 10.1016/j.bios.2020.112474] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 12/12/2022]
Abstract
Exosomal messenger RNA (mRNA) has emerged as a valuable biomarker for liquid biopsy-based disease diagnosis and prognosis due to its stability in body fluids and its biological regulatory function. Here, we report a rapid one-step isothermal gene amplification reaction based on three-way junction (3WJ) formation and the successful detection of urinary exosomal mRNA from tumor-bearing mice. The 3WJ structure can be formed by the association of 3WJ probes (3WJ-template and 3WJ-primer) in the presence of target RNA. After 3WJ structure formation, the 3WJ primer is repeatedly extended and cleaved by a combination of DNA polymerase and nicking endonuclease, producing multiple signal primers. Subsequently, the signal primers promote a specially designed network reaction pathway to produce G-quadruplex probes under isothermal conditions. Finally, G-quadruplex structure produces highly enhanced fluorescence signal upon binding to thioflavin T. This method provides a detection limit of 1.23 pM (24.6 amol) with high selectivity for the target RNA. More importantly, this method can be useful for the sensing of various kinds of mRNA, including breast cancer cellular mRNA, breast cancer exosomal mRNA, and even urinary exosomal mRNA from breast cancer mice. We anticipate that the developed RNA detection assay can be used for various biomedical applications, such as disease diagnosis, prognosis, and treatment monitoring.
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Affiliation(s)
- Jeong Moon
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea; Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST, Daejeon, 34141, Republic of Korea
| | - Jaewoo Lim
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea; Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon, 34113, Republic of Korea
| | - Seoyoung Lee
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST, Daejeon, 34141, Republic of Korea
| | - Hye Young Son
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03772, Republic of Korea; YUHS-KRIBB Medical Convergence Research Institute, Seoul, 03722, Republic of Korea
| | - Hyun Wook Rho
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03772, Republic of Korea
| | - Hongki Kim
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Hyunju Kang
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Jinyoung Jeong
- Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon, 34113, Republic of Korea; Environmental Disease Research Center, KRIBB, Daejeon, 34141, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea; Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon, 34113, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea; Department of Nanobiotechnology, KRIBB School of Biotechnology, UST, Daejeon, 34113, Republic of Korea
| | - Yong-Min Huh
- Department of Radiology, College of Medicine, Yonsei University, Seoul, 03772, Republic of Korea; Severance Biomedical Science Institute, College of Medicine, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyun Gyu Park
- Department of Chemical and Biomolecular Engineering (BK 21+ Program), KAIST, Daejeon, 34141, Republic of Korea.
| | - Taejoon Kang
- Bionanotechnology Research Center, KRIBB, Daejeon, 34141, Republic of Korea.
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