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Meng YQ, Shi YN, Zhu YP, Liu YQ, Gu LW, Liu DD, Ma A, Xia F, Guo QY, Xu CC, Zhang JZ, Qiu C, Wang JG. Recent trends in preparation and biomedical applications of iron oxide nanoparticles. J Nanobiotechnology 2024; 22:24. [PMID: 38191388 PMCID: PMC10775472 DOI: 10.1186/s12951-023-02235-0] [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: 08/14/2023] [Accepted: 11/29/2023] [Indexed: 01/10/2024] Open
Abstract
The iron oxide nanoparticles (IONPs), possessing both magnetic behavior and semiconductor property, have been extensively used in multifunctional biomedical fields due to their biocompatible, biodegradable and low toxicity, such as anticancer, antibacterial, cell labelling activities. Nevertheless, there are few IONPs in clinical use at present. Some IONPs approved for clinical use have been withdrawn due to insufficient understanding of its biomedical applications. Therefore, a systematic summary of IONPs' preparation and biomedical applications is crucial for the next step of entering clinical practice from experimental stage. This review summarized the existing research in the past decade on the biological interaction of IONPs with animal/cells models, and their clinical applications in human. This review aims to provide cutting-edge knowledge involved with IONPs' biological effects in vivo and in vitro, and improve their smarter design and application in biomedical research and clinic trials.
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Affiliation(s)
- Yu Qing Meng
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ya Nan Shi
- School of Pharmacy, Yantai University, No. 30, Qingquan Road, Laishan District, Yantai, Shandong, China
| | - Yong Ping Zhu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yan Qing Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Li Wei Gu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Dan Dan Liu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ang Ma
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Fei Xia
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Qiu Yan Guo
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Cheng Chao Xu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Jun Zhe Zhang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Chong Qiu
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Ji Gang Wang
- State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
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Seo JY, Park SB, Kim SY, Seo GJ, Jang HK, Lee TJ. Acoustic and Magnetic Stimuli-Based Three-Dimensional Cell Culture Platform for Tissue Engineering. Tissue Eng Regen Med 2023; 20:563-580. [PMID: 37052782 PMCID: PMC10313605 DOI: 10.1007/s13770-023-00539-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/16/2023] [Accepted: 03/15/2023] [Indexed: 04/14/2023] Open
Abstract
In a conventional two-dimensional (2D) culture method, cells are attached to the bottom of the culture dish and grow into a monolayer. These 2D culture methods are easy to handle, cost-effective, reproducible, and adaptable to growing many different types of cells. However, monolayer 2D cell culture conditions are far from those of natural tissue, indicating the need for a three-dimensional (3D) culture system. Various methods, such as hanging drop, scaffolds, hydrogels, microfluid systems, and bioreactor systems, have been utilized for 3D cell culture. Recently, external physical stimulation-based 3D cell culture platforms, such as acoustic and magnetic forces, were introduced. Acoustic waves can establish acoustic radiation force, which can induce suspended objects to gather in the pressure node region and aggregate to form clusters. Magnetic targeting consists of two components, a magnetically responsive carrier and a magnetic field gradient source. In a magnetic-based 3D cell culture platform, cells are aggregated by changing the magnetic force. Magnetic fields can manipulate cells through two different methods: positive magnetophoresis and negative magnetophoresis. Positive magnetophoresis is a way of imparting magnetic properties to cells by labeling them with magnetic nanoparticles. Negative magnetophoresis is a label-free principle-based method. 3D cell structures, such as spheroids, 3D network structures, and cell sheets, have been successfully fabricated using this acoustic and magnetic stimuli-based 3D cell culture platform. Additionally, fabricated 3D cell structures showed enhanced cell behavior, such as differentiation potential and tissue regeneration. Therefore, physical stimuli-based 3D cell culture platforms could be promising tools for tissue engineering.
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Affiliation(s)
- Ju Yeon Seo
- Division of Biomedical Convergence, Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
- Department of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Song Bin Park
- Department of Bio-Health Technology, College of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Seo Yeon Kim
- Division of Biomedical Convergence, Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Gyeong Jin Seo
- Division of Biomedical Convergence, Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Hyeon-Ki Jang
- Division of Chemical Engineering and Bioengineering, College of Art Culture and Engineering, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea
| | - Tae-Jin Lee
- Division of Biomedical Convergence, Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea.
- Department of Bio-Health Convergence, Kangwon National University, Chuncheon-si, Gangwon-do, 24341, Republic of Korea.
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3
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Sadeghi S, Tehrani FR, Tahmasebi S, Shafiee A, Hashemi SM. Exosome engineering in cell therapy and drug delivery. Inflammopharmacology 2023; 31:145-169. [PMID: 36609717 PMCID: PMC9823267 DOI: 10.1007/s10787-022-01115-7] [Citation(s) in RCA: 67] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 12/09/2022] [Indexed: 01/09/2023]
Abstract
Cell-derived exosomes have opened new horizons in modern therapy for advanced drug delivery and therapeutic applications, due to their key features such as low immunogenicity, high physicochemical stability, capacity to penetrate into tissues, and the innate capacity to communicate with other cells over long distances. Exosome-based liquid biopsy has been potentially used for the diagnosis and prognosis of a range of disorders. Exosomes deliver therapeutic agents, including immunological modulators, therapeutic drugs, and antisense oligonucleotides to certain targets, and can be used as vaccines, though their clinical application is still far from reality. Producing exosomes on a large-scale is restricted to their low circulation lifetime, weak targeting capacity, and inappropriate controls, which need to be refined before being implemented in practice. Several bioengineering methods have been used for refining therapeutic applications of exosomes and promoting their effectiveness, on the one hand, and addressing the existing challenges, on the other. In the short run, new diagnostic platforms and emerging therapeutic strategies will further develop exosome engineering and therapeutic potential. This requires a thorough analysis of exosome engineering approaches along with their merits and drawbacks, as outlined in this paper. The present study is a comprehensive review of novel techniques for exosome development in terms of circulation time in the body, targeting capacity, and higher drug loading/delivery efficacies.
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Affiliation(s)
- Somaye Sadeghi
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Advanced Therapy Medicinal Product (ATMP) Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Fahimeh Ramezani Tehrani
- Reproductive Endocrinology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Safa Tahmasebi
- Student Research Committee, Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Shafiee
- The University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, 37 Kent Street, Woolloongabba, Brisbane, QLD, 4102, Australia.
- Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane, QLD 4029, Australia.
| | - Seyed Mahmoud Hashemi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Medical Nanotechnology and tissue engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Wu M, Wang M, Jia H, Wu P. Extracellular vesicles: emerging anti-cancer drugs and advanced functionalization platforms for cancer therapy. Drug Deliv 2022; 29:2513-2538. [PMID: 35915054 PMCID: PMC9347476 DOI: 10.1080/10717544.2022.2104404] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Increasing evidences show that unmodified extracellular vesicles (EVs) derived from various cells can effectively inhibit the malignant progression of different types of tumors by delivering the bioactive molecules. Therefore, EVs are expected to be developed as emerging anticancer drugs. Meanwhile, unmodified EVs as an advanced and promising nanocarrier that is frequently used in targeted delivery therapeutic cargos and personalized reagents for the treatment and diagnosis of cancer. To improve the efficacy of EV-based treatments, researchers are trying to engineering EVs as an emerging nanomedicine translational therapy platform through biological, physical and chemical approaches, which can be broaden and altered to enhance their therapeutic capability. EVs loaded with therapeutic components such as tumor suppressor drugs, siRNAs, proteins, peptides, and conjugates exhibit significantly enhanced anti-tumor effects. Moreover, the design and preparation of tumor-targeted modified EVs greatly enhance the specificity and effectiveness of tumor therapy, and these strategies are expected to become novel ideas for tumor precision medicine. This review will focus on reviewing the latest research progress of functionalized EVs, clarifying the superior biological functions and powerful therapeutic potential of EVs, for researchers to explore new design concepts based on EVs and build next-generation nanomedicine therapeutic platforms.
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Affiliation(s)
- Manling Wu
- Department of Clinical Laboratory, The First Affiliated Hospital of UST C, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, P.R. China
- Anhui Provincial Children’s Hospital, Hefei, Anhui, P.R. China
| | - Min Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, P.R. China
| | - Haoyuan Jia
- Department of Clinical Laboratory, The Affiliated Wuxi People’s Hospital of Nanjing Medical University, Wuxi, Jiangsu, P.R. China
| | - Peipei Wu
- Department of Clinical Laboratory, The First Affiliated Hospital of UST C, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, P.R. China
- Anhui Provincial Children’s Hospital, Hefei, Anhui, P.R. China
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5
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Sarkar A, Saha S, Paul A, Maji A, Roy P, Maity TK. Understanding stem cells and its pivotal role in regenerative medicine. Life Sci 2021; 273:119270. [PMID: 33640402 DOI: 10.1016/j.lfs.2021.119270] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/06/2021] [Accepted: 02/14/2021] [Indexed: 02/07/2023]
Abstract
Stem cells (SCs) are clonogenic cells that develop into the specialized cells which later responsible for making up various types of tissue in the human body. SCs are not only the appropriate source of information for cell division, molecular and cellular processes, and tissue homeostasis but also one of the major putative biological aids to diagnose and cure various degenerative diseases. This study emphasises on various research outputs that occurred in the past two decades. This will give brief information on classification, differentiation, detection, and various isolation techniques of SCs. Here, the various signalling pathways which includes WNT, Sonic hedgehog, Notch, BMI1 and C-met pathways and how does it effect on the regeneration of various classes of SCs and factors that regulates the potency of the SCs are also been discussed. We also focused on the application of SCs in the area of regenerative medicine along with the cellular markers that are useful as salient diagnostic or curative tools or in both, by the process of reprogramming, which includes diabetes, cancer, cardiovascular disorders and neurological disorders. The biomarkers that are mentioned in various literatures and experiments include PDX1, FOXA2, HNF6, and NKX6-1 (for diabetes); CD33, CD24, CD133 (for cancer); c-Kit, SCA-1, Wilm's tumor 1 (for cardiovascular disorders); and OCT4, SOX2, c-MYC, EN1, DAT and VMAT2 (for neurological disorders). In this review, we come to know the advancements and scopes of potential SC-based therapies, its diverse applications in clinical fields that can be helpful in the near future.
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Affiliation(s)
- Arnab Sarkar
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India
| | - Sanjukta Saha
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India
| | - Abhik Paul
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India
| | - Avik Maji
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India
| | - Puspita Roy
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India
| | - Tapan Kumar Maity
- Department of Pharmaceutical Technology, Jadavpur University, West Bengal, Kolkata 700032, India.
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Xu S, Wang J, Wei Y, Zhao H, Tao T, Wang H, Wang Z, Du J, Wang H, Qian J, Ma K, Wang J. In Situ One-Pot Synthesis of Fe 2O 3@BSA Core-Shell Nanoparticles as Enhanced T 1-Weighted Magnetic Resonance Imagine Contrast Agents. ACS APPLIED MATERIALS & INTERFACES 2020; 12:56701-56711. [PMID: 33296181 DOI: 10.1021/acsami.0c13825] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ultra-small-sized iron oxide nanoparticles with good biocompatibility are regarded as promising alternatives for the gadolinium-based contrast agents, which are widely used as a positive contrast agent in magnetic resonance imaging (MRI). However, the current preparation of the iron oxide magnetic nanoparticles with small sizes usually involves organic solvents, increasing the complexity of hydrophilic ligand replacement and reducing the synthesis efficiency. It remains a great challenge to explore new iron oxide nanoparticles with good biocompatibility and a high T1 contrast effect. Here, we reported a cage-like protein architecture self-assembled by approximately 6-7 BSA (bovine serum albumin) subunits. The BSA nanocage was then used as a biotemplate to synthesize uniformed and monodispersed Fe2O3@BSA nanoparticles with ultra-small sizes (∼3.5 nm). The Fe2O3@BSA nanoparticle showed a high r1 value of 6.8 mM-1 s-1 and a low r2/r1 ratio of 10.6 at a 3 T magnetic field. Compared to Gd-DTPA, the brighter signal and prolonged angiographic effect of Fe2O3@BSA nanoparticles could greatly benefit steady-state and high-resolution imaging. The further in vivo and in vitro assessments of stability, toxicity, and renal clearance indicated a substantial potential as a T1 contrast agent in preclinical MRI.
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Affiliation(s)
- Shuai Xu
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
- University of Science and Technology of China, Hefei 230036, P.R. China
| | - Jiarong Wang
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Yuan Wei
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, P.R. China
| | - Hongxin Zhao
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Tongxiang Tao
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
- University of Science and Technology of China, Hefei 230036, P.R. China
| | - Hui Wang
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Zhen Wang
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
- University of Science and Technology of China, Hefei 230036, P.R. China
| | - Juan Du
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, P.R. China
| | - Hongzhi Wang
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Junchao Qian
- Hefei Cancer Hospital, Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Kun Ma
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
| | - Junfeng Wang
- High Magnetic Field Laboratory, CAS Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, P.R. China
- University of Science and Technology of China, Hefei 230036, P.R. China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, P.R. China
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7
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Xu H, Lee CW, Wang YF, Huang S, Shin LY, Wang YH, Wan Z, Zhu X, Yung PSH, Lee OKS. The Role of Paracrine Regulation of Mesenchymal Stem Cells in the Crosstalk With Macrophages in Musculoskeletal Diseases: A Systematic Review. Front Bioeng Biotechnol 2020; 8:587052. [PMID: 33324622 PMCID: PMC7726268 DOI: 10.3389/fbioe.2020.587052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/28/2020] [Indexed: 12/27/2022] Open
Abstract
The phenotypic change of macrophages (Mφs) plays a crucial role in the musculoskeletal homeostasis and repair process. Although mesenchymal stem cells (MSCs) have been shown as a novel approach in tissue regeneration, the therapeutic potential of MSCs mediated by the interaction between MSC-derived paracrine mediators and Mφs remains elusive. This review focused on the elucidation of paracrine crosstalk between MSCs and Mφs during musculoskeletal diseases and injury. The search method was based on the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and Cochrane Guidelines. The search strategies included MeSH terms and other related terms of MSC-derived mediators and Mφs. Ten studies formed the basis of this review. The current finding suggested that MSC administration promoted proliferation and activation of CD163+ or CD206+ M2 Mφs in parallel with reduction of proinflammatory cytokines and increase in anti-inflammatory cytokines. During such period, Mφs also induced MSCs into a motile and active phenotype via the influence of proinflammatory cytokines. Such crosstalk between Mφs and MSCs further strengthens the effect of paracrine mediators from MSCs to regulate Mφs phenotypic alteration. In conclusion, MSCs in musculoskeletal system, mediated by the interaction between MSC paracrine and Mφs, have therapeutic potential in musculoskeletal diseases.
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Affiliation(s)
- Hongtao Xu
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Chien-Wei Lee
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Developmental and Regenerative Biology TRP, Faculty of Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yu-Fan Wang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Shuting Huang
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Lih-Ying Shin
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Yu-Hsuan Wang
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Zihao Wan
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaobo Zhu
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Patrick Shu Hang Yung
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Oscar Kuang-Sheng Lee
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.,Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Faculty of Medicine, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.,Department of Orthopadics, China Medical University Hospital, Taichung, Taiwan
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Man K, Brunet MY, Jones MC, Cox SC. Engineered Extracellular Vesicles: Tailored-Made Nanomaterials for Medical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1838. [PMID: 32942556 PMCID: PMC7558114 DOI: 10.3390/nano10091838] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023]
Abstract
Extracellular vesicles (EVs) are emerging as promising nanoscale therapeutics due to their intrinsic role as mediators of intercellular communication, regulating tissue development and homeostasis. The low immunogenicity and natural cell-targeting capabilities of EVs has led to extensive research investigating their potential as novel acellular tools for tissue regeneration or for the diagnosis of pathological conditions. However, the clinical use of EVs has been hindered by issues with yield and heterogeneity. From the modification of parental cells and naturally-derived vesicles to the development of artificial biomimetic nanoparticles or the functionalisation of biomaterials, a multitude of techniques have been employed to augment EVs therapeutic efficacy. This review will explore various engineering strategies that could promote EVs scalability and therapeutic effectiveness beyond their native utility. Herein, we highlight the current state-of-the-art EV-engineering techniques with discussion of opportunities and obstacles for each. This is synthesised into a guide for selecting a suitable strategy to maximise the potential efficacy of EVs as nanoscale therapeutics.
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Affiliation(s)
- Kenny Man
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (K.M.); (M.Y.B.)
| | - Mathieu Y. Brunet
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (K.M.); (M.Y.B.)
| | - Marie-Christine Jones
- School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Sophie C. Cox
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK; (K.M.); (M.Y.B.)
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Ouyang L, Armstrong JPK, Chen Q, Lin Y, Stevens MM. Void-free 3D Bioprinting for In-situ Endothelialization and Microfluidic Perfusion. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1909009. [PMID: 35677899 PMCID: PMC7612826 DOI: 10.1002/adfm.201909009] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Two major challenges of 3D bioprinting are the retention of structural fidelity and efficient endothelialization for tissue vascularization. We address both of these issues by introducing a versatile 3D bioprinting strategy, in which a templating bioink is deposited layer-by-layer alongside a matrix bioink to establish void-free multimaterial structures. After crosslinking the matrix phase, the templating phase is sacrificed to create a well-defined 3D network of interconnected tubular channels. This void-free 3D printing (VF-3DP) approach circumvents the traditional concerns of structural collapse, deformation and oxygen inhibition, moreover, it can be readily used to print materials that are widely considered "unprintable". By pre-loading endothelial cells into the templating bioink, the inner surface of the channels can be efficiently cellularized with a confluent endothelial layer. This in-situ endothelialization method can be used to produce endothelium with a far greater uniformity than can be achieved using the conventional post-seeding approach. This VF-3DP approach can also be extended beyond tissue fabrication and towards customized hydrogel-based microfluidics and self-supported perfusable hydrogel constructs.
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Wang P, Kim T, Harada M, Contag C, Huang X, Smith BR. Nano-immunoimaging. NANOSCALE HORIZONS 2020; 5:628-653. [PMID: 32226975 DOI: 10.1039/c9nh00514e] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Immunoimaging is a rapidly growing field stoked in large part by the intriguing triumphs of immunotherapy. On the heels of immunotherapy's successes, there exists a growing need to evaluate tumor response to therapy particularly immunotherapy, stratify patients into responders vs. non-responders, identify inflammation, and better understand the fundamental roles of immune system components to improve both immunoimaging and immunotherapy. Innovative nanomaterials have begun to provide novel opportunities for immunoimaging, in part due to their sensitivity, modularity, capacity for many potentially varied ligands (high avidity), and potential for multifunctionality/multimodality imaging. This review strives to comprehensively summarize the integration of nanotechnology and immunoimaging, and the field's potential for clinical applications.
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Affiliation(s)
- Ping Wang
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Precision Health Program, Michigan State University, East Lansing, MI 488824, USA
| | - Taeho Kim
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Department of Biomedical Engineering, Michigan State University, East Lansing, MI 488824, USA
| | - Masako Harada
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Department of Biomedical Engineering, Michigan State University, East Lansing, MI 488824, USA
| | - Christopher Contag
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Precision Health Program, Michigan State University, East Lansing, MI 488824, USA and Department of Biomedical Engineering, Michigan State University, East Lansing, MI 488824, USA and Department of Microbiology & Molecular Genetics, Michigan State University, East Lansing, MI 488824, USA
| | - Xuefei Huang
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Department of Biomedical Engineering, Michigan State University, East Lansing, MI 488824, USA and Department of Chemistry, Michigan State University, East Lansing, MI 488824, USA
| | - Bryan Ronain Smith
- Institute for Quantitative Health Science and Engineering, Michigan State University, 775 Woodlot Drive, Room #1118, East Lansing, MI 488824, USA. and Department of Biomedical Engineering, Michigan State University, East Lansing, MI 488824, USA and Department of Radiology, Stanford University, Stanford, CA 94306, USA
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11
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Armstrong JPK, Stevens MM. Using Remote Fields for Complex Tissue Engineering. Trends Biotechnol 2020; 38:254-263. [PMID: 31439372 PMCID: PMC7023978 DOI: 10.1016/j.tibtech.2019.07.005] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/17/2019] [Accepted: 07/19/2019] [Indexed: 12/21/2022]
Abstract
Great strides have been taken towards the in vitro engineering of clinically relevant tissue constructs using the classic triad of cells, materials, and biochemical factors. In this perspective, we highlight ways in which these elements can be manipulated or stimulated using a fourth component: the application of remote fields. This arena has gained great momentum over the last few years, with a recent surge of interest in using magnetic, optical, and acoustic fields to guide the organization of cells, materials, and biochemical factors. We summarize recent developments and trends in this arena and then lay out a series of challenges that we believe, if met, could enable the widespread adoption of remote fields in mainstream tissue engineering.
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Affiliation(s)
- James P K Armstrong
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK.
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK.
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12
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MRI Tracking of SPIO- and Fth1-Labeled Bone Marrow Mesenchymal Stromal Cell Transplantation for Treatment of Stroke. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:5184105. [PMID: 31531004 PMCID: PMC6735219 DOI: 10.1155/2019/5184105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/29/2019] [Accepted: 05/02/2019] [Indexed: 01/09/2023]
Abstract
We aimed to identify a suitable method for long-term monitoring of the migration and proliferation of mesenchymal stromal cells in stroke models of rats using ferritin transgene expression by magnetic resonance imaging (MRI). Bone marrow mesenchymal stromal cells (BMSCs) were transduced with a lentivirus containing a shuttle plasmid (pCDH-CMV-MCS-EF1-copGFP) carrying the ferritin heavy chain 1 (Fth1) gene. Ferritin expression in stromal cells was evaluated with western blotting and immunofluorescent staining. The iron uptake of Fth1-BMSCs was measured with Prussian blue staining. Following surgical introduction of middle cerebral artery occlusion, Fth1-BMSCs and superparamagnetic iron oxide- (SPIO-) labeled BMSCs were injected through the internal jugular vein. The imaging and signal intensities were monitored by diffusion-weighted imaging (DWI), T2-weighted imaging (T2WI), and susceptibility-weighted imaging (SWI) in vitro and in vivo. Pathology was performed for comparison. We observed that the MRI signal intensity of SPIO-BMSCs gradually reduced over time. Fth1-BMSCs showed the same signal intensity between 10 and 60 days. SWI showed hypointense lesions in the SPIO-BMSC (traceable for 30 d) and Fth1-BMSC groups. T2WI was not sensitive enough to trace Fth1-BMSCs. After transplantation, Prussian blue-stained cells were observed around the infarction area and in the infarction center in both transplantation models. Fth1-BMSCs transplanted for treating focal cerebral infarction were safe, reliable, and traceable by MRI. Fth1 labeling was more stable and suitable than SPIO labeling for long-term tracking. SWI was more sensitive than T2W1 and suitable as the optimal MRI-tracking sequence.
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13
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Xue L, Deng D, Sun J. Magnetoferritin: Process, Prospects, and Their Biomedical Applications. Int J Mol Sci 2019; 20:E2426. [PMID: 31100837 PMCID: PMC6567256 DOI: 10.3390/ijms20102426] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/05/2019] [Accepted: 05/09/2019] [Indexed: 02/07/2023] Open
Abstract
Ferritin is a spherical iron storage protein composed of 24 subunits and an iron core. Using biomimetic mineralization, magnetic iron oxide can be synthesized in the cavity of ferritin to form magnetoferritin (MFt). MFt, also known as a superparamagnetic protein, is a novel magnetic nanomaterial with good biocompatibility and flexibility for biomedical applications. Recently, it has been demonstrated that MFt had tumor targetability and a peroxidase-like catalytic activity. Thus, MFt, with its many unique properties, provides a powerful platform for tumor diagnosis and therapy. In this review, we discuss the biomimetic synthesis and biomedical applications of MFt.
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Affiliation(s)
- Le Xue
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China.
| | - Dawei Deng
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 210009, China.
| | - Jianfei Sun
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China.
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14
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Armstrong JPK, Maynard SA, Pence IJ, Franklin AC, Drinkwater BW, Stevens MM. Spatiotemporal quantification of acoustic cell patterning using Voronoï tessellation. LAB ON A CHIP 2019; 19:562-573. [PMID: 30667009 PMCID: PMC6386121 DOI: 10.1039/c8lc01108g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Acoustic patterning using ultrasound standing waves has recently emerged as a potent biotechnology enabling the remote generation of ordered cell systems. This capability has opened up exciting opportunities, for example, in guiding the development of organoid cultures or the organization of complex tissues. The success of these studies is often contingent on the formation of tightly-packed and uniform cell arrays; however, a number of factors can act to disrupt or prevent acoustic patterning. Yet, to the best of our knowledge, there has been no comprehensive assessment of the quality of acoustically-patterned cell populations. In this report we use a mathematical approach, known as Voronoï tessellation, to generate a series of metrics that can be used to measure the effect of cell concentration, pressure amplitude, ultrasound frequency and biomaterial viscosity upon the quality of acoustically-patterned cell systems. Moreover, we extend this approach towards the characterization of spatiotemporal processes, namely, the acoustic patterning of cell suspensions and the migration of patterned, adherent cell clusters. This strategy is simple, unbiased and highly informative, and we anticipate that the methods described here will provide a systematic framework for all stages of acoustic patterning, including the robust quality control of devices, statistical comparison of patterning conditions, the quantitative exploration of parameter limits and the ability to track patterned tissue formation over time.
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Affiliation(s)
- James P K Armstrong
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College London, London, SW7 2AZ, UK.
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15
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Sánchez-Alonso S, Alcaraz-Serna A, Sánchez-Madrid F, Alfranca A. Extracellular Vesicle-Mediated Immune Regulation of Tissue Remodeling and Angiogenesis After Myocardial Infarction. Front Immunol 2018; 9:2799. [PMID: 30555478 PMCID: PMC6281951 DOI: 10.3389/fimmu.2018.02799] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 11/13/2018] [Indexed: 12/20/2022] Open
Abstract
Myocardial ischemia-related disorders constitute a major health problem, being a leading cause of death in the world. Upon ischemia, tissue remodeling processes come into play, comprising a series of inter-dependent stages, including inflammation, cell proliferation and repair. Neovessel formation during late phases of remodeling provides oxygen supply, together with cellular and soluble components necessary for an efficient myocardial reconstruction. Immune system plays a central role in processes aimed at repairing ischemic myocardium, mainly in inflammatory and angiogenesis phases. In addition to cellular components and soluble mediators as chemokines and cytokines, the immune system acts in a paracrine fashion through small extracellular vesicles (EVs) release. These vesicular structures participate in multiple biological processes, and transmit information through bioactive cargoes from one cell to another. Cell therapy has been employed in an attempt to improve the outcome of these patients, through the promotion of tissue regeneration and angiogenesis. However, clinical trials have shown variable results, which put into question the actual applicability of cell-based therapies. Paracrine factors secreted by engrafted cells partially mediate tissue repair, and this knowledge has led to the hypothesis that small EVs may become a useful tool for cell-free myocardial infarction therapy. Current small EVs engineering strategies allow delivery of specific content to selected cell types, thus revealing the singular properties of these vesicles for myocardial ischemia treatment.
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Affiliation(s)
- Santiago Sánchez-Alonso
- Immunology Service, Hospital de la Princesa, Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ana Alcaraz-Serna
- Immunology Service, Hospital de la Princesa, Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain
| | - Francisco Sánchez-Madrid
- Immunology Service, Hospital de la Princesa, Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain.,Department of Vascular Biology and Inflammation, Centro Nacional de Investigaciones Cardiovasculares, Madrid, Spain.,CIBER Cardiovascular, Madrid, Spain
| | - Arantzazu Alfranca
- Immunology Service, Hospital de la Princesa, Instituto de Investigación Sanitaria del Hospital Universitario de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain.,CIBER Cardiovascular, Madrid, Spain
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Babincová M, Durdík Š, Babincová N, Sourivong P, Babinec P. Application of cationized magnetoferritin for magnetic field-assisted delivery of short interfering RNA in vitro. Lasers Med Sci 2018; 33:1807-1812. [PMID: 29846831 DOI: 10.1007/s10103-018-2547-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 05/21/2018] [Indexed: 01/18/2023]
Abstract
Cationized magnetoferritin is used for development of a simple, efficient, and fast delivery of short interference RNA into cells using combination of magnetophoresis for pre-concentration of siRNA-magnetoferritin complex on the surface of plated cells with subsequent application of nanosecond laser pulses producing stress waves in transfection chamber, which permeabilize cell membrane for the facilitated delivery of siRNA into the cell interior. As has been quantified using siRNA inducing cell death assay, by combination of these two physical factors we have obtained high efficiency for tested three different human carcinoma cells. Proposed method of gene silencing based on cationized magnetoferritin is a versatile and easily accessible platform with many possible applications in gene therapy.
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Affiliation(s)
- Melánia Babincová
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia
| | - Štefan Durdík
- Department of Surgical Oncology, Saint Elisabeth Cancer Institute and Faculty of Medicine, Comenius University Bratislava, Heydukova 10, Bratislava, Slovakia
| | - Natália Babincová
- Department of Dermatovenerology, Faculty of Medicine, Mickiewiczova 13, 813 69, Bratislava, Slovakia
| | - Paul Sourivong
- Oklahoma Cancer Specialists and Research Institute, 12697 East 51st Street South, Tulsa, OK, 74146, USA
| | - Peter Babinec
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia.
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17
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Chen B, Sun J, Fan F, Zhang X, Qin Z, Wang P, Li Y, Zhang X, Liu F, Liu Y, Ji M, Gu N. Ferumoxytol of ultrahigh magnetization produced by hydrocooling and magnetically internal heating co-precipitation. NANOSCALE 2018; 10:7369-7376. [PMID: 29644371 DOI: 10.1039/c8nr00736e] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ferumoxytol, which is originally intended for MRI and anemia treatment, is currently the only inorganic nanodrug approved by FDA for clinical application in vivo. Common ferumoxytol seems incapable of meeting the requirements for diverse applications. Thus, the development of a novel strategy based on co-precipitation to produce ferumoxytol with high quality is an imminent task. Herein, we proposed a physically assisted strategy, namely hydrocooling and magnetically internal heating co-precipitation, to optimize the properties of ferumoxytol and thus significantly enhance its magnetic performance. Magnetization of the newly developed ferumoxytol can reach 104-105 emu g-1 Fe, which is the highest value among the reported results. It has been found that the crystalline structures of the newly developed ferumoxytol have been greatly improved on the basis of pharmaceutical quality criteria.
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Affiliation(s)
- Bo Chen
- Jiangsu Key Laboratory for Biomaterials and Devices, Department of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, P. R. China.
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Abstract
The ability to rationally manipulate and augment the cytoplasmic membrane can be used to overcome many of the challenges faced by conventional cellular therapies and provide innovative opportunities when combined with new biotechnologies. The focus of this review is on emerging strategies used in cell functionalization, highlighting both pioneering approaches and recent developments. These will be discussed within the context of future directions in this rapidly evolving field.
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Affiliation(s)
- James Pk Armstrong
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK
| | - Adam W Perriman
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK Centre for Organized Matter Chemistry and Centre for Protolife Research, School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
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Armstrong JPK, Holme MN, Stevens MM. Re-Engineering Extracellular Vesicles as Smart Nanoscale Therapeutics. ACS NANO 2017; 11:69-83. [PMID: 28068069 PMCID: PMC5604727 DOI: 10.1021/acsnano.6b07607] [Citation(s) in RCA: 407] [Impact Index Per Article: 58.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In the past decade, extracellular vesicles (EVs) have emerged as a key cell-free strategy for the treatment of a range of pathologies, including cancer, myocardial infarction, and inflammatory diseases. Indeed, the field is rapidly transitioning from promising in vitro reports toward in vivo animal models and early clinical studies. These investigations exploit the high physicochemical stability and biocompatibility of EVs as well as their innate capacity to communicate with cells via signal transduction and membrane fusion. This review focuses on methods in which EVs can be chemically or biologically modified to broaden, alter, or enhance their therapeutic capability. We examine two broad strategies, which have been used to introduce a wide range of nanoparticles, reporter systems, targeting peptides, pharmaceutics, and functional RNA molecules. First, we explore how EVs can be modified by manipulating their parent cells, either through genetic or metabolic engineering or by introducing exogenous material that is subsequently incorporated into secreted EVs. Second, we consider how EVs can be directly functionalized using strategies such as hydrophobic insertion, covalent surface chemistry, and membrane permeabilization. We discuss the historical context of each specific technology, present prominent examples, and evaluate the complexities, potential pitfalls, and opportunities presented by different re-engineering strategies.
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Affiliation(s)
- James PK Armstrong
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
| | - Margaret N Holme
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
| | - Molly M Stevens
- Department of Materials, Department of Bioengineering, and Institute for Biomedical Engineering, Imperial College, London, U.K. SW7 2AZ
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20
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Correia Carreira S, Armstrong JPK, Okuda M, Seddon AM, Perriman AW, Schwarzacher W. Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells. J Vis Exp 2016:54785. [PMID: 28060256 PMCID: PMC5226398 DOI: 10.3791/54785] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Many important biomedical applications, such as cell imaging and remote manipulation, can be achieved by labeling cells with superparamagnetic iron oxide nanoparticles (SPIONs). Achieving sufficient cellular uptake of SPIONs is a challenge that has traditionally been met by exposing cells to elevated concentrations of SPIONs or by prolonging exposure times (up to 72 hr). However, these strategies are likely to mediate toxicity. Here, we present the synthesis of the protein-based SPION magnetoferritin as well as a facile surface functionalization protocol that enables rapid cell magnetization using low exposure concentrations. The SPION core of magnetoferritin consists of cobalt-doped iron oxide with an average particle diameter of 8.2 nm mineralized inside the cavity of horse spleen apo-ferritin. Chemical cationization of magnetoferritin produced a novel, highly membrane-active SPION that magnetized human mesenchymal stem cells (hMSCs) using incubation times as short as one minute and iron concentrations as lows as 0.2 mM.
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Affiliation(s)
| | | | - Mitsuhiro Okuda
- Self Assembly Group, CIC nanoGUNE; Ikebasque, Basque Foundation for Science
| | - Annela M Seddon
- Bristol Centre for Functional Nanomaterials, University of Bristol
| | - Adam W Perriman
- School of Cellular and Molecular Medicine, University of Bristol
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21
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Cationized Magnetoferritin Enables Rapid Labeling and Concentration of Gram-Positive and Gram-Negative Bacteria in Magnetic Cell Separation Columns. Appl Environ Microbiol 2016; 82:3599-3604. [PMID: 27060124 PMCID: PMC4959160 DOI: 10.1128/aem.00720-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 04/05/2016] [Indexed: 01/10/2023] Open
Abstract
In order to identify pathogens rapidly and reliably, bacterial capture and concentration from large sample volumes into smaller ones are often required. Magnetic labeling and capture of bacteria using a magnetic field hold great promise for achieving this goal, but the current protocols have poor capture efficiency. Here, we present a rapid and highly efficient approach to magnetic labeling and capture of both Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria using cationized magnetoferritin (cat-MF). Magnetic labeling was achieved within a 1-min incubation period with cat-MF, and 99.97% of the labeled bacteria were immobilized in commercially available magnetic cell separation (MACS) columns. Longer incubation times led to more efficient capture, with S. aureus being immobilized to a greater extent than E. coli. Finally, low numbers of magnetically labeled E. coli bacteria (<100 CFU per ml) were immobilized with 100% efficiency and concentrated 7-fold within 15 min. Therefore, our study provides a novel protocol for rapid and highly efficient magnetic labeling, capture, and concentration of both Gram-positive and Gram-negative bacteria. IMPORTANCE Antimicrobial resistance (AMR) is a significant global challenge. Rapid identification of pathogens will retard the spread of AMR by enabling targeted treatment with suitable agents and by reducing inappropriate antimicrobial use. Rapid detection methods based on microfluidic devices require that bacteria are concentrated from large volumes into much smaller ones. Concentration of bacteria is also important to detect low numbers of pathogens with confidence. Here, we demonstrate that magnetic separation columns capture small amounts of bacteria with 100% efficiency. Rapid magnetization was achieved by exposing bacteria to cationic magnetic nanoparticles, and magnetized bacteria were concentrated 7-fold inside the column. Thus, bacterial capture and concentration were achieved within 15 min. This approach could be extended to encompass the capture and concentration of specific pathogens, for example, by functionalizing magnetic nanoparticles with antibodies or small molecule probes.
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