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Cober ND, Rowe K, Deng Y, Benavente‐Babace A, Courtman DW, Godin M, Stewart DJ. Targeting extracellular vesicle delivery to the lungs by microgel encapsulation. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e94. [PMID: 38938918 PMCID: PMC11080904 DOI: 10.1002/jex2.94] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 04/29/2023] [Accepted: 05/17/2023] [Indexed: 06/29/2024]
Abstract
Extracellular vesicles (EVs) secreted by stem and progenitor cells have significant potential as cell-free 'cellular' therapeutics. Yet, small EVs (<200 nm) are rapidly cleared after systemic administration, mainly by the liver, presenting challenges targeting EVs to a specific organ or tissue. Microencapsulation using natural nano-porous hydrogels (microgels) has been shown to enhance engraftment and increase the survival of transplanted cells. We sought to encapsulate EVs within microgels to target their delivery to the lung by virtue of their size-based retention within the pulmonary microcirculation. Mesenchymal stromal cell (MSC) derived EVs were labelled with the lipophilic dye (DiR) and encapsulated within agarose-gelatin microgels. Endothelial cells and bone marrow derived macrophages were able to take up EVs encapsulated in microgels in vitro, but less efficiently than the uptake of free EVs. Following intrajugular administration, microgel encapsulated EVs were selectively retained within the lungs for 72h, while free EVs were rapidly cleared by the liver. Furthermore, microgel-loaded EVs demonstrated greater uptake by lung cells, in particular CD45+ immune cells, as assessed by flow cytometry compared to free EVs. Microencapsulation of EVs may be a novel tool for enhancing the targeted delivery of EVs for future therapeutic applications.
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Affiliation(s)
- Nicholas D. Cober
- Sinclair Centre for Regenerative MedicineOttawa Hospital Research InstituteOttawaOntarioCanada
- Faculty of MedicineDepartment of Cellular and Molecular MedicineUniversity of OttawaOttawaOntarioCanada
| | - Katelynn Rowe
- Sinclair Centre for Regenerative MedicineOttawa Hospital Research InstituteOttawaOntarioCanada
| | - Yupu Deng
- Sinclair Centre for Regenerative MedicineOttawa Hospital Research InstituteOttawaOntarioCanada
| | | | - David W. Courtman
- Sinclair Centre for Regenerative MedicineOttawa Hospital Research InstituteOttawaOntarioCanada
| | - Michel Godin
- Faculty of Science, Department of PhysicsUniversity of OttawaOttawaOntarioCanada
| | - Duncan J. Stewart
- Sinclair Centre for Regenerative MedicineOttawa Hospital Research InstituteOttawaOntarioCanada
- Faculty of MedicineDepartment of Cellular and Molecular MedicineUniversity of OttawaOttawaOntarioCanada
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2
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Lu H, Li X, Yang H, Wu J, Zhang Y, Huang H. Preparation and properties of riboflavin-loaded sanxan microcapsules. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107641] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tiemeijer BM, Tel J. Hydrogels for Single-Cell Microgel Production: Recent Advances and Applications. Front Bioeng Biotechnol 2022; 10:891461. [PMID: 35782502 PMCID: PMC9247248 DOI: 10.3389/fbioe.2022.891461] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
Single-cell techniques have become more and more incorporated in cell biological research over the past decades. Various approaches have been proposed to isolate, culture, sort, and analyze individual cells to understand cellular heterogeneity, which is at the foundation of every systematic cellular response in the human body. Microfluidics is undoubtedly the most suitable method of manipulating cells, due to its small scale, high degree of control, and gentle nature toward vulnerable cells. More specifically, the technique of microfluidic droplet production has proven to provide reproducible single-cell encapsulation with high throughput. Various in-droplet applications have been explored, ranging from immunoassays, cytotoxicity assays, and single-cell sequencing. All rely on the theoretically unlimited throughput that can be achieved and the monodispersity of each individual droplet. To make these platforms more suitable for adherent cells or to maintain spatial control after de-emulsification, hydrogels can be included during droplet production to obtain “microgels.” Over the past years, a multitude of research has focused on the possibilities these can provide. Also, as the technique matures, it is becoming clear that it will result in advantages over conventional droplet approaches. In this review, we provide a comprehensive overview on how various types of hydrogels can be incorporated into different droplet-based approaches and provide novel and more robust analytic and screening applications. We will further focus on a wide range of recently published applications for microgels and how these can be applied in cell biological research at the single- to multicell scale.
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Affiliation(s)
- B. M. Tiemeijer
- Laboratory of Immunoengineering, Department of Biomedical Engineering, TU Eindhoven, Eindhoven, Netherlands
- Institute of Complex Molecular Systems, TU Eindhoven, Eindhoven, Netherlands
| | - J. Tel
- Laboratory of Immunoengineering, Department of Biomedical Engineering, TU Eindhoven, Eindhoven, Netherlands
- Institute of Complex Molecular Systems, TU Eindhoven, Eindhoven, Netherlands
- *Correspondence: J. Tel,
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Chen Z, Lv Z, Zhang Z, Weitz DA, Zhang H, Zhang Y, Cui W. Advanced microfluidic devices for fabricating multi-structural hydrogel microsphere. EXPLORATION (BEIJING, CHINA) 2021; 1:20210036. [PMID: 37323691 PMCID: PMC10191056 DOI: 10.1002/exp.20210036] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 11/02/2021] [Indexed: 06/15/2023]
Abstract
Hydrogel microspheres are a novel functional material, arousing much attention in various fields. Microfluidics, a technology that controls and manipulates fluids at the micron scale, has emerged as a promising method for fabricating hydrogel microspheres due to its ability to generate uniform microspheres with controlled geometry. With the development of microfluidic devices, more complicated hydrogel microspheres with multiple structures can be constructed. This review presents an overview of advances in microfluidics for designing and engineering hydrogel microspheres. It starts with an introduction to the features of hydrogel microspheres and microfluidic techniques, followed by a discussion of material selection for fabricating microfluidic devices. Then the progress of microfluidic devices for single-component and composite hydrogel microspheres is described, and the method for optimizing microfluidic devices is also given. Finally, this review discusses the key research directions and applications of microfluidics for hydrogel microsphere in the future.
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Affiliation(s)
- Zehao Chen
- School of Mechatronic Engineering and AutomationShanghai UniversityShanghaiP. R. China
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiP. R. China
| | - Zhendong Lv
- Department of Spine SurgeryRenji HospitalShanghai Jiao Tong University School of MedicineShanghaiP. R. China
| | - Zhen Zhang
- School of Mechatronic Engineering and AutomationShanghai UniversityShanghaiP. R. China
| | - David A. Weitz
- Department of Physics and Harvard John A. Paulson School of Engineering and Applied SciencesHarvard UniversityCambridgeMassachusettsUSA
| | - Hongbo Zhang
- Pharmaceutical Sciences LaboratoryÅbo Akademi University and Turku Bioscience CentreUniversity of Turku and Åbo Akademi UniversityTurkuFinland
| | - Yuhui Zhang
- School of Mechatronic Engineering and AutomationShanghai UniversityShanghaiP. R. China
- Department of Spine SurgeryRenji HospitalShanghai Jiao Tong University School of MedicineShanghaiP. R. China
| | - Wenguo Cui
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghaiP. R. China
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Amirifar L, Besanjideh M, Nasiri R, Shamloo A, Nasrollahi F, de Barros NR, Davoodi E, Erdem A, Mahmoodi M, Hosseini V, Montazerian H, Jahangiry J, Darabi MA, Haghniaz R, Dokmeci MR, Annabi N, Ahadian S, Khademhosseini A. Droplet-based microfluidics in biomedical applications. Biofabrication 2021; 14. [PMID: 34781274 DOI: 10.1088/1758-5090/ac39a9] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/15/2021] [Indexed: 11/11/2022]
Abstract
Droplet-based microfluidic systems have been employed to manipulate discrete fluid volumes with immiscible phases. Creating the fluid droplets at microscale has led to a paradigm shift in mixing, sorting, encapsulation, sensing, and designing high throughput devices for biomedical applications. Droplet microfluidics has opened many opportunities in microparticle synthesis, molecular detection, diagnostics, drug delivery, and cell biology. In the present review, we first introduce standard methods for droplet generation (i.e., passive and active methods) and discuss the latest examples of emulsification and particle synthesis approaches enabled by microfluidic platforms. Then, the applications of droplet-based microfluidics in different biomedical applications are detailed. Finally, a general overview of the latest trends along with the perspectives and future potentials in the field are provided.
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Affiliation(s)
- Leyla Amirifar
- Mechanical Engineering, Sharif University of Technology, Tehran, Iran, Tehran, 11365-11155, Iran (the Islamic Republic of)
| | - Mohsen Besanjideh
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Tehran, 11365-11155, Iran (the Islamic Republic of)
| | - Rohollah Nasiri
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Tehran, 11365-11155, Iran (the Islamic Republic of)
| | - Amir Shamloo
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Tehran, 11365-11155, Iran (the Islamic Republic of)
| | | | - Natan Roberto de Barros
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
| | - Elham Davoodi
- Bioengineering, University of California - Los Angeles, Los Angeles, Los Angeles, 90095, UNITED STATES
| | - Ahmet Erdem
- Bioengineering, University of California - Los Angeles, Los Angeles, Los Angeles, 90095, UNITED STATES
| | | | - Vahid Hosseini
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
| | - Hossein Montazerian
- Bioengineering, University of California - Los Angeles, Los Angeles, Los Angeles, 90095, UNITED STATES
| | - Jamileh Jahangiry
- University of California - Los Angeles, Los Angeles, Los Angeles, 90095, UNITED STATES
| | | | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
| | - Mehmet R Dokmeci
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
| | - Nasim Annabi
- Chemical Engineering, UCLA, Los Angeles, Los Angeles, California, 90095, UNITED STATES
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, Los Angeles, 90024, UNITED STATES
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Abstract
Regenerative medicine is a novel scientific field that employs the use of stem cells as cell-based therapy for the regeneration and functional restoration of damaged tissues and organs. Stem cells bear characteristics such as the capacity for self-renewal and differentiation towards specific lineages and, therefore, serve as a backup reservoir in case of tissue injuries. Therapeutically, they can be autologously or allogeneically transplanted for tissue regeneration; however, allogeneic stem cell transplantation can provoke host immune responses leading to a host-versus-transplant reaction. A probable solution to this problem is stem cell encapsulation, a technique that utilizes various biomaterials for the creation of a semi-permeable membrane that encases the stem cells. Stem cell encapsulation can be accomplished by employing a great variety of natural and/or synthetic hydrogels and offers many benefits in regenerative medicine, including protection from the host’s immune system and mechanical stress, improved cell viability, proliferation and differentiation, cryopreservation and controlled and continuous delivery of the stem-cell-secreted therapeutic agents. Here, in this review, we report and discuss almost all natural and synthetic hydrogels used in stem cell encapsulation, along with the benefits that these materials, alone or in combination, could offer to cell therapy through functional cell encapsulation.
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Uptake of microcapsules with different stiffness and its influence on cell functions. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Kanda P, Benavente-Babace A, Parent S, Connor M, Soucy N, Steeves A, Lu A, Cober ND, Courtman D, Variola F, Alarcon EI, Liang W, Stewart DJ, Godin M, Davis DR. Deterministic paracrine repair of injured myocardium using microfluidic-based cocooning of heart explant-derived cells. Biomaterials 2020; 247:120010. [PMID: 32259654 DOI: 10.1016/j.biomaterials.2020.120010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 03/17/2020] [Accepted: 03/26/2020] [Indexed: 02/08/2023]
Abstract
While encapsulation of cells within protective nanoporous gel cocoons increases cell retention and pro-survival integrin signaling, the influence of cocoon size and intra-capsular cell-cell interactions on therapeutic repair are unknown. Here, we employ a microfluidic platform to dissect the impact of cocoon size and intracapsular cell number on the regenerative potential of transplanted heart explant-derived cells. Deterministic increases in cocoon size boosted the proportion of multicellular aggregates within cocoons, reduced vascular clearance of transplanted cells and enhanced stimulation of endogenous repair. The latter being attributable to cell-cell stimulation of cytokine and extracellular vesicle production while also broadening of the miRNA cargo within extracellular vesicles. Thus, by tuning cocoon size and cell occupancy, the paracrine signature and retention of transplanted cells can be enhanced to promote paracrine stimulation of endogenous tissue repair.
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Affiliation(s)
- Pushpinder Kanda
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | | | - Sandrine Parent
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Michie Connor
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Nicholas Soucy
- Ottawa-Carleton Institute for Biomedical Engineering, Ottawa, K1N6N5, Canada
| | - Alexander Steeves
- Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Aizhu Lu
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada
| | - Nicholas David Cober
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - David Courtman
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada
| | - Fabio Variola
- Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Emilio I Alarcon
- University of Ottawa Heart Institute, Division of Cardiac Surgery, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, K1H8M5, Canada
| | - Wenbin Liang
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - Duncan J Stewart
- Ottawa Hospital Research Institute, Division of Regenerative Medicine, Department of Medicine, University of Ottawa, Ottawa, K1H8L6, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada
| | - Michel Godin
- Department of Physics, University of Ottawa, K1N6N5, Canada; Ottawa-Carleton Institute for Biomedical Engineering, Ottawa, K1N6N5, Canada; Department of Mechanical Engineering, University of Ottawa, K1N6N5, Canada
| | - Darryl R Davis
- University of Ottawa Heart Institute, Division of Cardiology, Department of Medicine, University of Ottawa, Ottawa, K1Y4W7, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, K1H8M5, Canada.
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Mohamed MGA, Ambhorkar P, Samanipour R, Yang A, Ghafoor A, Kim K. Microfluidics-based fabrication of cell-laden microgels. BIOMICROFLUIDICS 2020; 14:021501. [PMID: 32161630 PMCID: PMC7058428 DOI: 10.1063/1.5134060] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/16/2020] [Indexed: 05/02/2023]
Abstract
Microfluidic principles have been extensively utilized as powerful tools to fabricate controlled monodisperse cell-laden hydrogel microdroplets for various biological applications, especially tissue engineering. In this review, we report recent advances in microfluidic-based droplet fabrication and provide our rationale to justify the superiority of microfluidics-based techniques over other microtechnology methods in achieving the encapsulation of cells within hydrogels. The three main components of such a system-hydrogels, cells, and device configurations-are examined thoroughly. First, the characteristics of various types of hydrogels including natural and synthetic types, especially concerning cell encapsulation, are examined. This is followed by the elucidation of the reasoning behind choosing specific cells for encapsulation. Next, in addition to a detailed discussion of their respective droplet formation mechanisms, various device configurations including T-junctions, flow-focusing, and co-flowing that aid in achieving cell encapsulation are critically reviewed. We then present an outlook on the current applications of cell-laden hydrogel droplets in tissue engineering such as 3D cell culturing, rapid generation and repair of tissues, and their usage as platforms for studying cell-cell and cell-microenvironment interactions. Finally, we shed some light upon the prospects of microfluidics-based production of cell-laden microgels and propose some directions for forthcoming research that can aid in overcoming challenges currently impeding the translation of the technology into clinical success.
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Affiliation(s)
- Mohamed G. A. Mohamed
- School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Pranav Ambhorkar
- School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Roya Samanipour
- School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Annie Yang
- School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Ali Ghafoor
- Irving K. Barber School of Arts and Sciences, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
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