1
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Huang Y, Yao K, Zhang Q, Huang X, Chen Z, Zhou Y, Yu X. Bioelectronics for electrical stimulation: materials, devices and biomedical applications. Chem Soc Rev 2024. [PMID: 39132912 DOI: 10.1039/d4cs00413b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Bioelectronics is a hot research topic, yet an important tool, as it facilitates the creation of advanced medical devices that interact with biological systems to effectively diagnose, monitor and treat a broad spectrum of health conditions. Electrical stimulation (ES) is a pivotal technique in bioelectronics, offering a precise, non-pharmacological means to modulate and control biological processes across molecular, cellular, tissue, and organ levels. This method holds the potential to restore or enhance physiological functions compromised by diseases or injuries by integrating sophisticated electrical signals, device interfaces, and designs tailored to specific biological mechanisms. This review explains the mechanisms by which ES influences cellular behaviors, introduces the essential stimulation principles, discusses the performance requirements for optimal ES systems, and highlights the representative applications. From this review, we can realize the potential of ES based bioelectronics in therapy, regenerative medicine and rehabilitation engineering technologies, ranging from tissue engineering to neurological technologies, and the modulation of cardiovascular and cognitive functions. This review underscores the versatility of ES in various biomedical contexts and emphasizes the need to adapt to complex biological and clinical landscapes it addresses.
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Affiliation(s)
- Ya Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Kuanming Yao
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Qiang Zhang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Xingcan Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Zhenlin Chen
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Yu Zhou
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
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2
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Ding H, Hao L, Mao H. Magneto-responsive biocomposites in wound healing: from characteristics to functions. J Mater Chem B 2024; 12:7463-7479. [PMID: 38990160 DOI: 10.1039/d4tb00743c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
The number of patients with non-healing wounds continuously increases, and has become a prominent societal issue that imposes a heavy burden on both patients and the entire healthcare system. Although traditional dressings play an important role in wound healing, the complexity and diversity of the healing process pose serious challenges in this field. Magneto-responsive biocomposites, with their excellent biocompatibility, remote spatiotemporal controllability, and unique convenience, demonstrate enticing advantages in the field of wound dressings. However, current research on magneto-responsive biocomposites as wound dressings lacks comprehensive and in-depth reviews, which to some extent, restricts the deeper understanding and further development of this field. Based on this, this paper reviews the latest advances in magnetic responsive wound dressings for wound healing. First, we review the process of skin wound healing and parameters for assessing repair progress. Then, we systematically discuss the preparation strategies and unique characteristics of magneto-responsive biocomposites, focusing on magneto-induced orientation, magneto-induced mechanical stimulation, and magnetocaloric effect. Subsequently, this review elaborates the multiple mechanisms of magneto-responsive biocomposites in promoting wound healing, including regulating cell behavior, enhancing electrical signal, controlling drug release, and accelerating tissue reconstruction. Finally, we further propose the development direction and future challenges of magnetic responsive biomaterials as wound dressings in clinical application.
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Affiliation(s)
- Haoyang Ding
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Lili Hao
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Hongli Mao
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
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3
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Kim D, Lee MJ, Arai Y, Ahn J, Lee GW, Lee SH. Ultrasound-triggered three dimensional hyaluronic acid hydrogel promotes in vitro and in vivo reprogramming into induced pluripotent stem cells. Bioact Mater 2024; 38:331-345. [PMID: 38764447 PMCID: PMC11101682 DOI: 10.1016/j.bioactmat.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/12/2024] [Accepted: 05/05/2024] [Indexed: 05/21/2024] Open
Abstract
Cellular reprogramming technologies have been developed with different physicochemical factors to improve the reprogramming efficiencies of induced pluripotent stem cells (iPSCs). Ultrasound is a clinically applied noncontact biophysical factor known for regulating various cellular behaviors but remains uninvestigated for cellular reprogramming. Here, we present a new reprogramming strategy using low-intensity ultrasound (LIUS) to improve cellular reprogramming of iPSCs in vitro and in vivo. Under 3D microenvironment conditions, increased LIUS stimulation shows enhanced cellular reprogramming of the iPSCs. The cellular reprogramming process facilitated by LIUS is accompanied by increased mesenchymal to epithelial transition and histone modification. LIUS stimulation transiently modulates the cytoskeletal rearrangement, along with increased membrane fluidity and mobility to increase HA/CD44 interactions. Furthermore, LIUS stimulation with HA hydrogel can be utilized in application of both human cells and in vivo environment, for enhanced reprogrammed cells into iPSCs. Thus, LIUS stimulation with a combinatorial 3D microenvironment system can improve cellular reprogramming in vitro and in vivo environments, which can be applied in various biomedical fields.
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Affiliation(s)
| | | | - Yoshie Arai
- Department of Biomedical Engineering, Dongguk University-Seoul, 04620, Seoul, South Korea
| | - Jinsung Ahn
- Department of Biomedical Engineering, Dongguk University-Seoul, 04620, Seoul, South Korea
| | - Gun Woo Lee
- Department of Biomedical Engineering, Dongguk University-Seoul, 04620, Seoul, South Korea
| | - Soo-Hong Lee
- Department of Biomedical Engineering, Dongguk University-Seoul, 04620, Seoul, South Korea
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4
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James EC, Tomaskovic-Crook E, Crook JM. Engineering 3D Scaffold-Free Nanoparticle-Laden Stem Cell Constructs for Piezoelectric Enhancement of Human Neural Tissue Formation and Function. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2310010. [PMID: 39049737 DOI: 10.1002/advs.202310010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 07/04/2024] [Indexed: 07/27/2024]
Abstract
Electrical stimulation (ES) of cellular systems can be utilized for biotechnological applications and electroceuticals (bioelectric medicine). Neural cell stimulation especially has a long history in neuroscience research and is increasingly applied for clinical therapies. Application of ES via conventional electrodes requires external connectors and power sources, hindering scientific and therapeutic applications. Here engineering novel 3D scaffold-free human neural stem cell constructs with integrated piezoelectric nanoparticles for enhanced neural tissue induction and function is described. Tetragonal barium titanate (BaTi03) nanoparticles are employed as piezoelectric stimulators prepared as cytocompatible dispersions, incorporated into 3D self-organizing neural spheroids, and activated wirelessly by ultrasound. Ultrasound delivery (low frequency; 40 kHz) is optimized for cell survival, and nanoparticle activation enabled ES throughout the spheroids during differentiation, tissue formation, and maturation. The resultant human neural tissues represent the first example of direct tissue loading with piezoelectric particles for ensuing 3D ultrasound-mediated piezoelectric enhancement of human neuronal induction from stem cells, including augmented neuritogenesis and synaptogenesis. It is anticipated that the platform described will facilitate advanced tissue engineering and in vitro modeling of human neural (and potentially non-neural) tissues, with modeling including tissue development and pathology, and applicable to preclinical testing and prototyping of both electroceuticals and pharmaceuticals.
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Affiliation(s)
- Emma Claire James
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Fairy Meadow, NSW, 2519, Australia
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, NSW, 2050, Australia
| | - Eva Tomaskovic-Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Fairy Meadow, NSW, 2519, Australia
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, NSW, 2050, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2006, Australia
| | - Jeremy Micah Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Fairy Meadow, NSW, 2519, Australia
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, NSW, 2050, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2006, Australia
- Institute of Innovative Materials, AIIM Facility, Innovation Campus, Faculty of Engineering and Information Systems, University of Wollongong, Fairy Meadow, NSW, 2519, Australia
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5
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Luo S, Zhang C, Xiong W, Song Y, Wang Q, Zhang H, Guo S, Yang S, Liu H. Advances in electroactive biomaterials: Through the lens of electrical stimulation promoting bone regeneration strategy. J Orthop Translat 2024; 47:191-206. [PMID: 39040489 PMCID: PMC11261049 DOI: 10.1016/j.jot.2024.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/16/2024] [Accepted: 06/07/2024] [Indexed: 07/24/2024] Open
Abstract
The regenerative capacity of bone is indispensable for growth, given that accidental injury is almost inevitable. Bone regenerative capacity is relevant for the aging population globally and for the repair of large bone defects after osteotomy (e.g., following removal of malignant bone tumours). Among the many therapeutic modalities proposed to bone regeneration, electrical stimulation has attracted significant attention owing to its economic convenience and exceptional curative effects, and various electroactive biomaterials have emerged. This review summarizes the current knowledge and progress regarding electrical stimulation strategies for improving bone repair. Such strategies range from traditional methods of delivering electrical stimulation via electroconductive materials using external power sources to self-powered biomaterials, such as piezoelectric materials and nanogenerators. Electrical stimulation and osteogenesis are related via bone piezoelectricity. This review examines cell behaviour and the potential mechanisms of electrostimulation via electroactive biomaterials in bone healing, aiming to provide new insights regarding the mechanisms of bone regeneration using electroactive biomaterials. The translational potential of this article This review examines the roles of electroactive biomaterials in rehabilitating the electrical microenvironment to facilitate bone regeneration, addressing current progress in electrical biomaterials and the mechanisms whereby electrical cues mediate bone regeneration. Interactions between osteogenesis-related cells and electroactive biomaterials are summarized, leading to proposals regarding the use of electrical stimulation-based therapies to accelerate bone healing.
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Affiliation(s)
- Songyang Luo
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, 110001, China
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, China
| | - Chengshuo Zhang
- Hepatobiliary Surgery Department, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Wei Xiong
- Department of Plastic Surgery, The First Hospital of Shihezi Medical University, Shihezi, 832000, China
| | - Yiping Song
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, China
| | - Hangzhou Zhang
- Department of Orthopedics, The First Hospital of China Medical University, Shenyang Sports Medicine Clinical Medical Research Center, Shenyang, 110001, China
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Shude Yang
- Department of Plastic Surgery, The First Hospital of China Medical University, Shenyang, 110001, China
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, China
| | - Huanye Liu
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang, 110001, China
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6
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Lee M, Lee H, Chung H, Lee JH, Kim D, Cho S, Kim TJ, Kim HS. Micro-current stimulation could inhibit IL-1β-induced inflammatory responses in chondrocytes and protect knee bone cartilage from osteoarthritis. Biomed Eng Lett 2024; 14:801-812. [PMID: 38946809 PMCID: PMC11208348 DOI: 10.1007/s13534-024-00376-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/24/2024] [Accepted: 03/29/2024] [Indexed: 07/02/2024] Open
Abstract
This study aimed to evaluate the inhibitory effects of micro-current stimulation (MCS) on inflammatory responses in chondrocytes and degradation of extracellular matrix (ECM) in osteoarthritis (OA). To determine the efficacy of MCS, IL-1β-treated chondrocytes and monosodium iodoacetate (MIA)-induced OA rat model were used. To evaluate the cytotoxicity and nitric oxide (NO) production in SW1353 cells, the presence or absence of IL-1β treatment or various levels of MCS were applied. Immunoblot analysis was conducted to evaluate whether MCS can modulate IL-1R1/MyD88/NF-κB signaling pathway and various indicators involved in ECM degradation. Additionally, to determine whether MCS alleviates subchondral bone structure destruction caused by OA, micro-CT analysis, immunoblot analysis, and ELISA were conducted using OA rat model. 25 and 50 µA levels of MCS showed effects in cell proliferation and NO production. The MCS group with IL-1β treatment lead to significant inhibition of protein expression levels regarding IL-1R1/MyD88/NF-κB signaling and reduction of the nucleus translocation of NF-κB. In addition, the protein expression levels of MMP-1, MMP-3, MMP-13, and IL-1β decreased, whereas collagen II and aggrecan increased. In animal results, morphological analysis of subchondral bone using micro-CT showed that MCS induced subchondral bone regeneration and improvement, as evidenced by increased thickness and bone mineral density of the subchondral bone. Furthermore, MCS-applied groups showed decreases in the protein expression of MMP-1 and MMP-3, while increases in collagen-II and aggrecan expressions. These findings suggest that MCS has the potential to be used as a non-pharmaceutical method to alleviate OA.
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Affiliation(s)
- Minjoo Lee
- Department of Biomedical Engineering, Yonsei University, Gangwon, 26493 South Korea
| | - Hana Lee
- Department of Biomedical Engineering, Yonsei University, Gangwon, 26493 South Korea
| | - Halim Chung
- Department of Biomedical Engineering, Yonsei University, Gangwon, 26493 South Korea
| | - Jin-Ho Lee
- Division of Biological Science and Technology, Yonsei University, Gangwon, 26493 South Korea
| | - Doyong Kim
- Department of Biomedical Engineering, Yonsei University, Gangwon, 26493 South Korea
| | | | - Tack-Joong Kim
- Division of Biological Science and Technology, Yonsei University, Gangwon, 26493 South Korea
| | - Han Sung Kim
- Department of Biomedical Engineering, Yonsei University, Gangwon, 26493 South Korea
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7
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Asefifeyzabadi N, Nguyen T, Li H, Zhu K, Yang HY, Baniya P, Medina Lopez A, Gallegos A, Hsieh HC, Dechiraju H, Hernandez C, Schorger K, Recendez C, Tebyani M, Selberg J, Luo L, Muzzy E, Hsieh C, Barbee A, Orozco J, Alhamo MA, Levin M, Aslankoohi E, Gomez M, Zhao M, Teodorescu M, Isseroff RR, Rolandi M. A pro-reparative bioelectronic device for controlled delivery of ions and biomolecules. Wound Repair Regen 2024. [PMID: 38794912 DOI: 10.1111/wrr.13191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 03/28/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024]
Abstract
Wound healing is a complex physiological process that requires precise control and modulation of many parameters. Therapeutic ion and biomolecule delivery has the capability to regulate the wound healing process beneficially. However, achieving controlled delivery through a compact device with the ability to deliver multiple therapeutic species can be a challenge. Bioelectronic devices have emerged as a promising approach for therapeutic delivery. Here, we present a pro-reparative bioelectronic device designed to deliver ions and biomolecules for wound healing applications. The device incorporates ion pumps for the targeted delivery of H+ and zolmitriptan to the wound site. In vivo studies using a mouse model further validated the device's potential for modulating the wound environment via H+ delivery that decreased M1/M2 macrophage ratios. Overall, this bioelectronic ion pump demonstrates potential for accelerating wound healing via targeted and controlled delivery of therapeutic agents to wounds. Continued optimization and development of this device could not only lead to significant advancements in tissue repair and wound healing strategies but also reveal new physiological information about the dynamic wound environment.
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Affiliation(s)
- Narges Asefifeyzabadi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Tiffany Nguyen
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Houpu Li
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Kan Zhu
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
| | - Hsin-Ya Yang
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Prabhat Baniya
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Andrea Medina Lopez
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Anthony Gallegos
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Hao-Chieh Hsieh
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Harika Dechiraju
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cristian Hernandez
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Kaelan Schorger
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cynthia Recendez
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
| | - Maryam Tebyani
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - John Selberg
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Le Luo
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Elana Muzzy
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Cathleen Hsieh
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
- Department of Chemistry and Biochemistry, University of California Santa Cruz, California, Santa Cruz, USA
| | - Alexie Barbee
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Jonathan Orozco
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
- Department of Economics, University of California Santa Cruz, Santa Cruz, California, USA
| | - Moyasar A Alhamo
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Michael Levin
- Department of Biology, Tufts University, Medford, Massachusetts, USA
| | - Elham Aslankoohi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Marcella Gomez
- Department of Applied Mathematics, University of California Santa Cruz, Santa Cruz, California, USA
| | - Min Zhao
- Department of Ophthalmology, School of Medicine, University of California Davis, Davis, California, USA
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
| | - Mircea Teodorescu
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
| | - Roslyn Rivkah Isseroff
- Department of Dermatology, School of Medicine, University of California Davis, Davis, California, USA
- Dermatology Section, VA Northern California Health Care System, Mather, California, USA
| | - Marco Rolandi
- Department of Electrical and Computer Engineering, University of California Santa Cruz, Santa Cruz, California, USA
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8
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Kim W, Kim G. Engineered 3D liver-tissue model with minispheroids formed by a bioprinting process supported with in situ electrical stimulation. Bioact Mater 2024; 35:382-400. [PMID: 38379698 PMCID: PMC10876469 DOI: 10.1016/j.bioactmat.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/22/2024] Open
Abstract
Three-dimensional (3D) bioprinting, an effective technique for building cell-laden structures providing native extracellular matrix environments, presents challenges, including inadequate cellular interactions. To address these issues, cell spheroids offer a promising solution for improving their biological functions. Particularly, minispheroids with 50-100 μm diameters exhibit enhanced cellular maturation. We propose a one-step minispheroid-forming bioprinting process incorporating electrical stimulation (E-MS-printing). By stimulating the cells, minispheroids with controlled diameters were generated by manipulating the bioink viscosity and stimulation intensity. To validate its feasibility, E-MS-printing process was applied to fabricate an engineered liver model designed to mimic the hepatic lobule unit. E-MS-printing was employed to print the hepatocyte region, followed by bioprinting the central vein using a core-shell nozzle. The resulting constructs displayed native liver-mimetic structures containing minispheroids, which facilitated improved hepatic cell maturation, functional attributes, and vessel formation. Our results demonstrate a new potential 3D liver model that can replicate native liver tissues.
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Affiliation(s)
- WonJin Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine (SKKU-SOM), Suwon, 16419, Republic of Korea
| | - GeunHyung Kim
- Department of Precision Medicine, Sungkyunkwan University School of Medicine (SKKU-SOM), Suwon, 16419, Republic of Korea
- Institute of Quantum Biophysics, Department of Biophysics, Sungkyunkwan University, Suwon, 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon, 16419, Republic of Korea
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9
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Salter LC, Wojciechowski JP, McLean B, Charchar P, Barnes PRF, Creamer A, Doutch J, Barriga HMG, Holme MN, Yarovsky I, Stevens MM. 3,4-Ethylenedioxythiophene Hydrogels: Relating Structure and Charge Transport in Supramolecular Gels. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2024; 36:3092-3106. [PMID: 38617802 PMCID: PMC11007859 DOI: 10.1021/acs.chemmater.3c01360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 04/16/2024]
Abstract
Ionic charge transport is a ubiquitous language of communication in biological systems. As such, bioengineering is in constant need of innovative, soft, and biocompatible materials that facilitate ionic conduction. Low molecular weight gelators (LMWGs) are complex self-assembled materials that have received increasing attention in recent years. Beyond their biocompatible, self-healing, and stimuli responsive facets, LMWGs can be viewed as a "solid" electrolyte solution. In this work, we investigate 3,4-ethylenedioxythiophene (EDOT) as a capping group for a small peptide library, which we use as a system to understand the relationship between modes of assembly and charge transport in supramolecular gels. Through a combination of techniques including small-angle neutron scattering (SANS), NMR-based Van't Hoff analysis, atomic force microscopy (AFM), rheology, four-point probe, and electrochemical impedance spectroscopy (EIS), we found that modifications to the peptide sequence result in distinct assembly pathways, thermodynamic parameters, mechanical properties, and ionic conductivities. Four-point probe conductivity measurements and electrochemical impedance spectroscopy suggest that ionic conductivity is approximately doubled by programmable gel assemblies with hollow cylinder morphologies relative to gels containing solid fibers or a control electrolyte. More broadly, it is hoped this work will serve as a platform for those working on charge transport of aqueous soft materials in general.
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Affiliation(s)
- Luke C.
B. Salter
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Jonathan P. Wojciechowski
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Ben McLean
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
- ARC
Research Hub for Australian Steel Innovation, https://www.rmit.edu.au/research/centres-collaborations/multi-partner-collaborations/arc-research-hub-aus-steel-manufacturing
| | - Patrick Charchar
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Piers R. F. Barnes
- Department
of Physics, Imperial College London, London SW7 2AZ, United
Kingdom
| | - Adam Creamer
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - James Doutch
- ISIS
Muon and Neutron Source, Rutherford Appleton
Laboratory, Harwell Campus, Oxfordshire OX11 0QX, United Kingdom
| | - Hanna M. G. Barriga
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Margaret N. Holme
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Irene Yarovsky
- School
of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Molly M. Stevens
- Department
of Materials and Department of Bioengineering, Institute of Biomedical
Engineering, Imperial College London, London SW7 2AZ, United Kingdom
- Department
of Medical Biochemistry and Biophysics, Karolinska Institute, 171 77 Stockholm, Sweden
- Department
of Physiology, Anatomy and Genetics, Department of Engineering Science,
and Kavli Institute for Nanoscience Discovery, University of Oxford, OX1
3QU, Oxford, United Kingdom
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10
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Melrose J. Keratan sulfate, an electrosensory neurosentient bioresponsive cell instructive glycosaminoglycan. Glycobiology 2024; 34:cwae014. [PMID: 38376199 PMCID: PMC10987296 DOI: 10.1093/glycob/cwae014] [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: 01/18/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024] Open
Abstract
The roles of keratan sulfate (KS) as a proton detection glycosaminoglycan in neurosensory processes in the central and peripheral nervous systems is reviewed. The functional properties of the KS-proteoglycans aggrecan, phosphacan, podocalyxcin as components of perineuronal nets in neurosensory processes in neuronal plasticity, cognitive learning and memory are also discussed. KS-glycoconjugate neurosensory gels used in electrolocation in elasmobranch fish species and KS substituted mucin like conjugates in some tissue contexts in mammals need to be considered in sensory signalling. Parallels are drawn between KS's roles in elasmobranch fish neurosensory processes and its roles in mammalian electro mechanical transduction of acoustic liquid displacement signals in the cochlea by the tectorial membrane and stereocilia of sensory inner and outer hair cells into neural signals for sound interpretation. The sophisticated structural and functional proteins which maintain the unique high precision physical properties of stereocilia in the detection, transmittance and interpretation of acoustic signals in the hearing process are important. The maintenance of the material properties of stereocilia are essential in sound transmission processes. Specific, emerging roles for low sulfation KS in sensory bioregulation are contrasted with the properties of high charge density KS isoforms. Some speculations are made on how the molecular and electrical properties of KS may be of potential application in futuristic nanoelectronic, memristor technology in advanced ultrafast computing devices with low energy requirements in nanomachines, nanobots or molecular switches which could be potentially useful in artificial synapse development. Application of KS in such innovative areas in bioregulation are eagerly awaited.
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Affiliation(s)
- James Melrose
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Raymond Purves Laboratory, Institute of Bone and Joint Research, Kolling Institute of Medical Research, Northern Sydney Local Health District, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Sydney Medical School, Northern, University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
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11
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Hu M, Li H, Zhu K, Guo L, Zhao M, Zhan H, Devreotes PN, Qing Q. Electric field modulation of ERK dynamics shows dependency on waveform and timing. Sci Rep 2024; 14:3167. [PMID: 38326365 PMCID: PMC10850077 DOI: 10.1038/s41598-024-53018-y] [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: 09/24/2023] [Accepted: 01/25/2024] [Indexed: 02/09/2024] Open
Abstract
Different exogenous electric fields (EF) can guide cell migration, disrupt proliferation, and program cell development. Studies have shown that many of these processes were initiated at the cell membrane, but the mechanism has been unclear, especially for conventionally non-excitable cells. In this study, we focus on the electrostatic aspects of EF coupling with the cell membrane by eliminating Faradaic processes using dielectric-coated microelectrodes. Our data unveil a distinctive biphasic response of the ERK signaling pathway of epithelial cells (MCF10A) to alternate current (AC) EF. The ERK signal exhibits both inhibition and activation phases, with the former triggered by a lower threshold of AC EF, featuring a swifter peaking time and briefer refractory periods than the later-occurring activation phase, induced at a higher threshold. Interestingly, the biphasic ERK responses are sensitive to the waveform and timing of EF stimulation pulses, depicting the characteristics of electrostatic and dissipative interactions. Blocker tests and correlated changes of active Ras on the cell membrane with ERK signals indicated that both EGFR and Ras were involved in the rich ERK dynamics induced by EF. We propose that the frequency-dependent dielectric relaxation process could be an important mechanism to couple EF energy to the cell membrane region and modulate membrane protein-initiated signaling pathways, which can be further explored to precisely control cell behavior and fate with high temporal and spatial resolution.
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Affiliation(s)
- Minxi Hu
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85287, USA
| | - Houpu Li
- Department of Physics, Arizona State University, Tempe, AZ, 85287, USA
| | - Kan Zhu
- Department of Dermatology, University of California, Davis, CA, 95616, USA
| | - Liang Guo
- College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin, Heilongjiang, China
| | - Min Zhao
- Department of Dermatology, University of California, Davis, CA, 95616, USA
- Department of Ophthalmology and Vision Science, University of California, Davis, CA, 95616, USA
| | - Huiwang Zhan
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Peter N Devreotes
- Department of Cell Biology and Center for Cell Dynamics, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Department of Biological Chemistry, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Quan Qing
- Department of Physics, Arizona State University, Tempe, AZ, 85287, USA.
- Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA.
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12
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Ouedraogo LJ, Trznadel MJ, Kling M, Nasirian V, Borst AG, Shirsavar MA, Makowski A, McNamara MC, Montazami R, Hashemi NN. Hydrodynamic Assembly of Astrocyte Cells in Conductive Hollow Microfibers. Adv Biol (Weinh) 2024; 8:e2300455. [PMID: 37953458 DOI: 10.1002/adbi.202300455] [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: 08/28/2023] [Revised: 10/19/2023] [Indexed: 11/14/2023]
Abstract
The manufacturing of 3D cell scaffoldings provides advantages for modeling diseases and injuries as it enables the creation of physiologically relevant platforms. A triple-flow microfluidic device is developed to rapidly fabricate alginate/graphene hollow microfibers based on the gelation of alginate induced with CaCl2 . This five-channel microdevice actualizes continuous mild fabrication of hollow fibers under an optimized flow rate ratio of 300:200:100 µL min-1 . The polymer solution is 2.5% alginate in 0.1% graphene and a 30% polyethylene glycol solution is used as the sheath and core solutions. The biocompatibility of these conductive microfibers by encapsulating mouse astrocyte cells (C8D1A) within the scaffolds is investigated. The cells can successfully survive both the manufacturing process and prolonged encapsulation for up to 8 days, where there is between 18-53% of live cells on both the alginate microfibers and alginate/graphene microfibers. These unique 3D hollow scaffolds can significantly enhance the available surface area for nutrient transport to the cells. In addition, these conductive hollow scaffolds illustrate unique advantages such as 0.728 cm3 gr-1 porosity and two times more electrical conductivity in comparison to alginate scaffolds. The results confirm the potential of these scaffolds as a microenvironment that supports cell growth.
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Affiliation(s)
- Lionel J Ouedraogo
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Mychal J Trznadel
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - McKayla Kling
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
- Neuroscience Graduate Program, Iowa State University, Ames, IA, 50011, USA
| | - Vahid Nasirian
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Alexandra G Borst
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
- Neuroscience Graduate Program, Iowa State University, Ames, IA, 50011, USA
| | | | - Andrew Makowski
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Marilyn C McNamara
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Reza Montazami
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
| | - Nicole N Hashemi
- Department of Mechanical Engineering, Iowa State University, Ames, IA, 50011, USA
- Neuroscience Graduate Program, Iowa State University, Ames, IA, 50011, USA
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13
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Rabbani M, Rahman E, Powner MB, Triantis IF. Making Sense of Electrical Stimulation: A Meta-analysis for Wound Healing. Ann Biomed Eng 2024; 52:153-177. [PMID: 37743460 PMCID: PMC10808217 DOI: 10.1007/s10439-023-03371-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
Electrical stimulation as a mode of external enhancement factor in wound healing has been explored widely. It has proven to have multidimensional effects in wound healing including antibacterial, galvanotaxis, growth factor secretion, proliferation, transdifferentiation, angiogenesis, etc. Despite such vast exploration, this modality has not yet been established as an accepted method for treatment. This article reviews and analyzes the approaches of using electrical stimulation to modulate wound healing and discusses the incoherence in approaches towards reporting the effect of stimulation on the healing process. The analysis starts by discussing various processes adapted in in vitro, in vivo, and clinical practices. Later it is focused on in vitro approaches directed to various stages of wound healing. Based on the analysis, a protocol is put forward for reporting in vitro works in such a way that the outcomes of the experiment are replicable and scalable in other setups. This work proposes a ground of unification for all the in vitro approaches in a more sensible manner, which can be further explored for translating in vitro approaches to complex tissue stimulation to establish electrical stimulation as a controlled clinical method for modulating wound healing.
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Affiliation(s)
- Mamun Rabbani
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Enayetur Rahman
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Michael B Powner
- Centre for Applied Vision Research, School of Health and Psychological Sciences, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Iasonas F Triantis
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK.
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14
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Wang S, Aljirafi FO, Payne GF, Bentley WE. Excite the unexcitable: engineering cells and redox signaling for targeted bioelectronic control. Curr Opin Biotechnol 2024; 85:103052. [PMID: 38150921 DOI: 10.1016/j.copbio.2023.103052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/17/2023] [Accepted: 11/28/2023] [Indexed: 12/29/2023]
Abstract
The ever-growing influence of technology in our lives has led to an increasing interest in the development of smart electronic devices to interrogate and control biological systems. Recently, redox-mediated electrogenetics introduced a novel avenue that enables direct bioelectronic control at the genetic level. In this review, we discuss recent advances in methodologies for bioelectronic control, ranging from electrical stimulation to engineering efforts that allow traditionally unexcitable cells to be electrically 'programmable.' Alongside ion-transport signaling, we suggest redox as a route for rational engineering because it is a native form of electronic communication in biology. Using redox as a common language allows the interfacing of electronics and biology. This newfound connection opens a gateway of possibilities for next-generation bioelectronic tools.
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Affiliation(s)
- Sally Wang
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD, USA; Fischell Institute of Biomedical Devices, University of Maryland, College Park, MD, USA
| | - Futoon O Aljirafi
- Fischell Institute of Biomedical Devices, University of Maryland, College Park, MD, USA; Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, USA
| | - Gregory F Payne
- Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD, USA; Fischell Institute of Biomedical Devices, University of Maryland, College Park, MD, USA
| | - William E Bentley
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA; Institute for Bioscience and Biotechnology Research, University of Maryland, Rockville, MD, USA; Fischell Institute of Biomedical Devices, University of Maryland, College Park, MD, USA
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15
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Chen C, Li X, Hu Y, Chen Y, Wang H, Li X, Li X. Electrical stimulation promoting the angiogenesis in diabetic rat perforator flap through attenuating oxidative stress-mediated inflammation and apoptosis. PeerJ 2024; 12:e16856. [PMID: 38313008 PMCID: PMC10838069 DOI: 10.7717/peerj.16856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Background Skin flap transplantation is one of the effective methods to treat the diabetes-related foot ulceration, but the intrinsic damage to vessels in diabetes mellitus (DM) leads to the necrosis of skin flaps. Therefore, the discovery of a non-invasive and effective approach for promoting the survival of flaps is of the utmost importance. Electrical stimulation (ES) promotes angiogenesis and increases the proliferation, migration, and elongation of endothelial cells, thus being a potential effective method to improve flap survival. Objective The purpose of this study was to elucidate the mechanism used by ES to effectively restore the impaired function of endothelial cells caused by diabetes. Methods A total of 79 adult male Sprague-Dawley rats were used in this study. Gene and protein expression was assessed by PCR and western blotting, respectively. Immunohistochemistry and hematoxylin-eosin staining were performed to evaluate the morphology and density of the microvessels in the flap. Results The optimal duration for preconditioning the flap with ES was 7 days. The flap survival area percentage and microvessels density in the DMES group were markedly increased compared to the DM group. VEGF, MMP2, and MMP9 protein expression was significantly upregulated. ROS intensity was significantly decreased and GSH concentration was increased. The expression of IL-1β, MCP‑1, cleaved caspase-3, and Bax were downregulated in the DMES group, while TGF-β expression was upregulated. Conclusions ES improves the angiogenesis in diabetic ischemic skin flaps by attenuating oxidative stress-mediated inflammation and apoptosis, eventually increasing their viability.
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Affiliation(s)
- Cong Chen
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaolu Li
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Yong Hu
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Yuan Chen
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Hongrui Wang
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xian Li
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xiucun Li
- Second Hospital of Shandong University, Jinan, Shandong, China
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16
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Min Q, Gao Y, Wang Y. Bioelectricity in dental medicine: a narrative review. Biomed Eng Online 2024; 23:3. [PMID: 38172866 PMCID: PMC10765628 DOI: 10.1186/s12938-023-01189-6] [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: 09/07/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Bioelectric signals, whether exogenous or endogenous, play crucial roles in the life processes of organisms. Recently, the significance of bioelectricity in the field of dentistry is steadily gaining greater attention. OBJECTIVE This narrative review aims to comprehensively outline the theory, physiological effects, and practical applications of bioelectricity in dental medicine and to offer insights into its potential future direction. It attempts to provide dental clinicians and researchers with an electrophysiological perspective to enhance their clinical practice or fundamental research endeavors. METHODS An online computer search for relevant literature was performed in PubMed, Web of Science and Cochrane Library, with the keywords "bioelectricity, endogenous electric signal, electric stimulation, dental medicine." RESULTS Eventually, 288 documents were included for review. The variance in ion concentration between the interior and exterior of the cell membrane, referred to as transmembrane potential, forms the fundamental basis of bioelectricity. Transmembrane potential has been established as an essential regulator of intercellular communication, mechanotransduction, migration, proliferation, and immune responses. Thus, exogenous electric stimulation can significantly alter cellular action by affecting transmembrane potential. In the field of dental medicine, electric stimulation has proven useful for assessing pulp condition, locating root apices, improving the properties of dental biomaterials, expediting orthodontic tooth movement, facilitating implant osteointegration, addressing maxillofacial malignancies, and managing neuromuscular dysfunction. Furthermore, the reprogramming of bioelectric signals holds promise as a means to guide organism development and intervene in disease processes. Besides, the development of high-throughput electrophysiological tools will be imperative for identifying ion channel targets and precisely modulating bioelectricity in the future. CONCLUSIONS Bioelectricity has found application in various concepts of dental medicine but large-scale, standardized, randomized controlled clinical trials are still necessary in the future. In addition, the precise, repeatable and predictable measurement and modulation methods of bioelectric signal patterns are essential research direction.
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Affiliation(s)
- Qingqing Min
- Department of Endodontics, Wuxi Stomatology Hospital, Wuxi, 214000, China
| | - Yajun Gao
- Department of Endodontics, Wuxi Stomatology Hospital, Wuxi, 214000, China
| | - Yao Wang
- Department of Implantology, Wuxi Stomatology Hospital, Wuxi, 214000, China.
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17
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Ma J, Singh S, Li M, Seelig D, Molnar GF, Wong ET, Dhawan S, Kim S, Helland L, Chen D, Tapinos N, Lawler S, Singh G, Chen CC. Directionally non-rotating electric field therapy delivered through implanted electrodes as a glioblastoma treatment platform: A proof-of-principle study. Neurooncol Adv 2024; 6:vdae121. [PMID: 39156619 PMCID: PMC11327618 DOI: 10.1093/noajnl/vdae121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024] Open
Abstract
Background While directionally rotating tumor-treating fields (TTF) therapy has garnered considerable clinical interest in recent years, there has been comparatively less focus on directionally non-rotating electric field therapy (dnEFT). Methods We explored dnEFT generated through customized electrodes as a glioblastoma therapy in in vitro and in vivo preclinical models. The effects of dnEFT on tumor apoptosis and microglia/macrophages in the tumor microenvironment were tested using flow-cytometric and qPCR assays. Results In vitro, dnEFT generated using a clinical-grade spinal cord stimulator showed antineoplastic activity against independent glioblastoma cell lines. In support of the results obtained using the clinical-grade electrode, dnEFT delivered through a customized, 2-electrode array induced glioblastoma apoptosis. To characterize this effect in vivo, a custom-designed 4-electrode array was fabricated such that tumor cells can be implanted into murine cerebrum through a center channel equidistant from the electrodes. After implantation with this array and luciferase-expressing murine GL261 glioblastoma cells, mice were randomized to dnEFT or placebo. Relative to placebo-treated mice, dnEFT reduced tumor growth (measured by bioluminescence) and prolonged survival (median survival gain of 6.5 days). Analysis of brain sections following dnEFT showed a notable increase in the accumulation of peritumoral macrophage/microglia with increased expression of M1 genes (IFNγ, TNFα, and IL-6) and decreased expression of M2 genes (CD206, Arg, and IL-10) relative to placebo-treated tumors. Conclusions Our results suggest therapeutic potential in glioblastoma for dnEFT delivered through implanted electrodes, supporting the development of a proof-of-principle clinical trial using commercially available deep brain stimulator electrodes.
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Affiliation(s)
- Jun Ma
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Shilpi Singh
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Ming Li
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Davis Seelig
- Department of Veterinary Clinic Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, USA
| | | | - Eric T Wong
- Department of Neurology, Warren Alpert School of Medicine, Rhode Island Hospital, Brown University, Providence, Rhode Island, USA
| | - Sanjay Dhawan
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Stefan Kim
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Logan Helland
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - David Chen
- Department of Neurosurgery, Taiwan Medical University, Taipei, Taiwan
| | - Nikos Tapinos
- Department of Neurosurgery, Warren Alpert School of Medicine, Rhode Island Hospital, Brown University, Providence, Rhode Island, USA
| | - Sean Lawler
- Department of Pathology and Laboratory Medicine, Legorreta Cancer Center, Brown University, Providence, Rhode Island, USA
| | - Gatikrushna Singh
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
| | - Clark C Chen
- Department of Neurosurgery, University of Minnesota, Minneapolis, Minnesota, USA
- Department of Neurosurgery, Warren Alpert School of Medicine, Rhode Island Hospital, Brown University, Providence, Rhode Island, USA
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18
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Pan Y, Zhang Y, Shi X, Li D, Xu X, Xiao B, Piao Y, Xiang J, Shao S, Ho FCY, Shen Y, Zhang AP, Tang J. Electrical stimulation induces anti-tumor immunomodulation via a flexible microneedle-array-integrated interdigital electrode. Sci Bull (Beijing) 2023; 68:2779-2792. [PMID: 37863773 DOI: 10.1016/j.scib.2023.10.004] [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: 05/01/2023] [Revised: 09/04/2023] [Accepted: 10/02/2023] [Indexed: 10/22/2023]
Abstract
Immunotherapy has revolutionized cancer therapy, using chemical or biological agents to reinvigorate the immune system. However, most of these agents have poor tumor penetration and inevitable side effects that complicate therapeutic outcomes. Electrical stimulation (ES) is a promising alternative therapy against cancers that does not involve chemical or biological agents but is limited in the fabrication and operation of complex micrometer-scale ES devices. Here, we present an optically microprinted flexible interdigital electrode with a gold-plated polymer microneedle array to generate alternating electric fields for cancer treatment. A flexible microneedle-array-integrated interdigital electrode (FMIE) was fabricated by combining optical 3D microprinting and electroless plating processes. FMIE-mediated ES of cancer cells induced necrotic cell death through mitochondrial Ca2+ overload and increased intracellular reactive oxygen species (ROS) production. This led to the release of damage-associated molecular patterns that activated the immune response and potentiated immunogenic cell death (ICD). FMIE-based ES has an excellent safety profile and systemic anti-tumor effects, inhibiting the growth of primary and distant tumors as well as melanoma lung metastasis. FMIE-based ES-driven cancer immunomodulation provides a new pathway for drug-free cancer therapy.
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Affiliation(s)
- Yixuan Pan
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yangxi Zhang
- Photonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Xueying Shi
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Dongdong Li
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xiaodan Xu
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Bing Xiao
- Institute of Pharmaceutics, Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ying Piao
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiajia Xiang
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Shiqun Shao
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China
| | - Frederic Chun-Yip Ho
- Photonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong, China
| | - Youqing Shen
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - A Ping Zhang
- Photonics Research Institute, Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Jianbin Tang
- Key Laboratory of Smart Biomaterials of Zhejiang Province, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou 311215, China.
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19
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Li K, Liu Z, Wu P, Chen S, Wang M, Liu W, Zhang L, Guo S, Liu Y, Liu P, Zhang B, Tao L, Ding H, Qian H, Fu Q. Micro electrical fields induced MSC-sEVs attenuate neuronal cell apoptosis by activating autophagy via lncRNA MALAT1/miR-22-3p/SIRT1/AMPK axis in spinal cord injury. J Nanobiotechnology 2023; 21:451. [PMID: 38012570 PMCID: PMC10680254 DOI: 10.1186/s12951-023-02217-2] [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: 09/04/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023] Open
Abstract
Spinal cord injury (SCI) is a traumatic condition of the central nervous system that causes paralysis of the limbs. Micro electric fields (EF) have been implicated in a novel therapeutic approach for nerve injury repair and regeneration, but the effects of human umbilical cord mesenchymal stem cell-derived small extracellular vesicles that are induced by micro electric fields (EF-sEVs) stimulation on SCI remain unknown. The aim of the present study was to investigate whether EF-sEVs have therapeutic effects a rat model of SCI. EF-sEVs and normally conditioned human umbilical cord mesenchymal stem cells-derived small extracellular vesicles (CON-sEVs) were collected and injected intralesionally into SCI model rats to evaluate the therapeutic effects. We detect the expression of candidate long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (lncRNA-MALAT1) in EF-sEVs and CON-sEVs. The targets and downstream effectors of lncRNA-MALAT1 were investigated using luciferase reporter assays. Using both in vivo and in vitro experiments, we demonstrated that EF-sEVs increased autophagy and decreased apoptosis after SCI, which promoted the recovery of motor function. We further confirmed that the neuroprotective effects of EF-sEVs in vitro and in vivo correlated with the presence of encapsulated lncRNA-MALAT1 in sEVs. lncRNA-MALAT1 targeted miR-22-3p via sponging, reducing miR-22-3p's suppressive effects on its target, SIRT1, and this translated into AMPK phosphorylation and increased levels of the antiapoptotic protein Bcl-2. Collectively, the present study identified that the lncRNA-MALAT1 in EF-sEVs plays a neuroprotective role via the miRNA-22-3p/SIRT1/AMPK axis and offers a fresh perspective and a potential therapeutic approach using sEVs to improve SCI.
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Affiliation(s)
- Kewei Li
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Zhong Liu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Peipei Wu
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
- Department of Laboratory Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Shenyuan Chen
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Min Wang
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Wenhui Liu
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Leilei Zhang
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Song Guo
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Yanbin Liu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Pengcheng Liu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Beiting Zhang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Lin Tao
- Department of Orthopaedics, Dehong Hospital of Traditional Chinese Medicine, Dehong, 678400, Yunnan, China
| | - Hua Ding
- Department of Orthopaedics, Affiliated People's Hospital of Jiangsu University, Zhenjiang, 212002, Jiangsu, China.
| | - Hui Qian
- Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Qiang Fu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China.
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20
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Bielfeldt M, Budde-Sagert K, Weis N, Buenning M, Staehlke S, Zimmermann J, Arbeiter N, Mobini S, González MU, Rebl H, Uhrmacher A, van Rienen U, Nebe B. Discrimination between the effects of pulsed electrical stimulation and electrochemically conditioned medium on human osteoblasts. J Biol Eng 2023; 17:71. [PMID: 37996914 PMCID: PMC10668359 DOI: 10.1186/s13036-023-00393-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023] Open
Abstract
BACKGROUND Electrical stimulation is used for enhanced bone fracture healing. Electrochemical processes occur during the electrical stimulation at the electrodes and influence cellular reactions. Our approach aimed to distinguish between electrochemical and electric field effects on osteoblast-like MG-63 cells. We applied 20 Hz biphasic pulses via platinum electrodes for 2 h. The electrical stimulation of the cell culture medium and subsequent application to cells was compared to directly stimulated cells. The electric field distribution was predicted using a digital twin. RESULTS Cyclic voltammetry and electrochemical impedance spectroscopy revealed partial electrolysis at the electrodes, which was confirmed by increased concentrations of hydrogen peroxide in the medium. While both direct stimulation and AC-conditioned medium decreased cell adhesion and spreading, only the direct stimulation enhanced the intracellular calcium ions and reactive oxygen species. CONCLUSION The electrochemical by-product hydrogen peroxide is not the main contributor to the cellular effects of electrical stimulation. However, undesired effects like decreased adhesion are mediated through electrochemical products in stimulated medium. Detailed characterisation and monitoring of the stimulation set up and electrochemical reactions are necessary to find safe electrical stimulation protocols.
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Affiliation(s)
- Meike Bielfeldt
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany.
| | - Kai Budde-Sagert
- Institute of Communications Engineering, University of Rostock, 18051, Rostock, Germany
- Institute for Visual and Analytic Computing, University of Rostock, 18051, Rostock, Germany
| | - Nikolai Weis
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany
| | - Maren Buenning
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany
| | - Susanne Staehlke
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany
| | - Julius Zimmermann
- Institute of General Electrical Engineering, University of Rostock, 18051, Rostock, Germany
| | - Nils Arbeiter
- Institute of General Electrical Engineering, University of Rostock, 18051, Rostock, Germany
| | - Sahba Mobini
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760 Tres Cantos, Madrid, Spain
| | - María Ujué González
- Instituto de Micro y Nanotecnología, IMN-CNM, CSIC (CEI UAM+CSIC), Isaac Newton 8, E-28760 Tres Cantos, Madrid, Spain
| | - Henrike Rebl
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany
| | - Adelinde Uhrmacher
- Institute for Visual and Analytic Computing, University of Rostock, 18051, Rostock, Germany
- Interdisciplinary Faculty, University of Rostock, 18051, Rostock, Germany
| | - Ursula van Rienen
- Institute of General Electrical Engineering, University of Rostock, 18051, Rostock, Germany
- Interdisciplinary Faculty, University of Rostock, 18051, Rostock, Germany
| | - Barbara Nebe
- Institute for Cell Biology, Rostock University Medical Center, 18057, Rostock, Germany
- Interdisciplinary Faculty, University of Rostock, 18051, Rostock, Germany
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21
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Maurmann N, França FS, Girón J, Pranke P. Cell Electrospinning: a Review of Materials and Methodologies for Biofabrication. Adv Biol (Weinh) 2023; 7:e2300058. [PMID: 37271854 DOI: 10.1002/adbi.202300058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/22/2023] [Indexed: 06/06/2023]
Abstract
The process of electrohydrodynamic living cell microencapsulation inside a scaffold during the electrospinning (ES) process is called cell electrospinning (CE). Several studies demonstrate the feasibility of using cell electrospinning for biomedical applications, allowing for the direct biofabrication of living cells to be encapsulated in fibers for the formation of active biological scaffolds. In this review, a comprehensive overview of the materials and methodologies used in cell electrospinning, as well as their biomedical application in tissue engineering, is provided. Cell ES represents an innovative technique for automated application in regenerative medicine.
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Affiliation(s)
- Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
| | - Fernanda S França
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
| | - Juliana Girón
- Center for Information Technology Renato Archer, Rodovia Dom Pedro I (SP-65), Km 143,6, Amarais, Campinas, SP, 13069-901, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
- Stem Cell Research Institute, Rua dos Andradas, 1464/133, Porto Alegre, 90.020-010, Brazil
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22
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Wang Y, Worrell GA, Wang HL. It is the Frequency that Matters: Effects of Electromagnetic Fields on the Release and Content of Extracellular Vesicles. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.08.552505. [PMID: 37609326 PMCID: PMC10441284 DOI: 10.1101/2023.08.08.552505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Extracellular vesicles (EVs) are small membrane-bound structures that originate from various cell types and carry molecular cargo to influence the behavior of recipient cells. The use of EVs as biomarkers and delivery vehicles for diagnosis and treatment in a wide range of human disease is a rapidly growing field of research and clinical practice. Four years ago, we postulated the hypothesis that electromagnetic fields (EMF) will influence the release and content of EVs (1). Since then, we have optimized several technical aspects of our experimental setup. We used a bioreactor system that allows cells to grow in a three-dimensional environment mimicking in-vivo conditions. We designed a custom-made EMF stimulation device that encompasses the bioreactor and delivers uniform EMFs. We established a three-step EV purification protocol that enables high-density production of EVs. We then performed mass spectrometry-based proteomics analysis on EV-related proteins and used high-resolution nanoparticle flowcytometry for single-vesicle analysis. We demonstrate that electrical stimulations of current amplitudes at physiological level that are currently applied in therapeutic deep brain stimulation can modulate EV content in a frequency-dependent manner, which may have important implications for basic biology and medical applications. First, it raises intriguing questions about how the endogenous electrical activity of neuronal and other cellular assemblies influence the production and composition of EVs. Second, it reveals an additional underlying mechanism of how therapeutic electrical stimulations can modulate EVs and treat human brain disorders. Third, it provides a novel approach of utilizing electrical stimulations in generating specific EV cargos.
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Affiliation(s)
- Yihua Wang
- Neurology Department, Mayo Clinic, Rochester, Minnesota
| | - Gregory A. Worrell
- Neurology Department, Mayo Clinic, Rochester, Minnesota
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Hai-Long Wang
- Neurology Department, Mayo Clinic, Rochester, Minnesota
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
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23
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Lange F, Porath K, Sellmann T, Einsle A, Jaster R, Linnebacher M, Köhling R, Kirschstein T. Direct-Current Electrical Field Stimulation of Patient-Derived Colorectal Cancer Cells. BIOLOGY 2023; 12:1032. [PMID: 37508461 PMCID: PMC10376471 DOI: 10.3390/biology12071032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023]
Abstract
Several cues for a directional migration of colorectal cancer cells were identified as being crucial in tumor progression. However, galvanotaxis, the directional migration in direct-current electrical fields, has not been investigated so far. Therefore, we asked whether direct-current electrical fields could be used to mobilize colorectal cancer cells along field vectors. For this purpose, five patient-derived low-passage cell lines were exposed to field strengths of 150-250 V/m in vitro, and migration along the field vectors was investigated. To further study the role of voltage-gated calcium channels on galvanotaxis and intracellular signaling pathways that are associated with migration of colorectal cancer cells, the cultures were exposed to selective inhibitors. In three out of five colorectal cancer cell lines, we found a preferred cathodal migration. The cellular integrity of the cells was not impaired by exposure of the cells to the selected field strengths. Galvanotaxis was sensitive to inhibition of voltage-gated calcium channels. Furthermore, signaling pathways such as AKT and MEK, but not STAT3, were also found to contribute to galvanotaxis in our in vitro model system. Overall, we identify electrical fields as an important contributor to the directional migration of colorectal cancer cells.
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Affiliation(s)
- Falko Lange
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Katrin Porath
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Tina Sellmann
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Anne Einsle
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Robert Jaster
- Division of Gastroenterology and Endocrinology, Department of Medicine II, Rostock University Medical Center, 18057 Rostock, Germany
| | - Michael Linnebacher
- Molecular Oncology and Immunotherapy, Clinic of General Surgery, Rostock University Medical Center, 18057 Rostock, Germany
| | - Rüdiger Köhling
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
| | - Timo Kirschstein
- Oscar-Langendorff-Institute of Physiology, Rostock University Medical Center, 18057 Rostock, Germany
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24
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Sesena-Rubfiaro A, Prajapati NJ, Paolino L, Lou L, Cotayo D, Pandey P, Shaver M, Hutcheson J, Agarwal A, He J. Membrane Remodeling of Human-Engineered Cardiac Tissue by Chronic Electric Stimulation. ACS Biomater Sci Eng 2023; 9:1644-1655. [PMID: 36765460 PMCID: PMC10542861 DOI: 10.1021/acsbiomaterials.2c01370] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) show immature features, but these are improved by integration into 3D cardiac constructs. In addition, it has been demonstrated that physical manipulations such as electrical stimulation (ES) are highly effective in improving the maturation of human-engineered cardiac tissue (hECT) derived from hiPSC-CMs. Here, we continuously applied an ES in capacitive coupling configuration, which is below the pacing threshold, to millimeter-sized hECTs for 1-2 weeks. Meanwhile, the structural and functional developments of the hECTs were monitored and measured using an array of assays. Of particular note, a nanoscale imaging technique, scanning ion conductance microscopy (SICM), has been used to directly image membrane remodeling of CMs at different locations on the tissue surface. Periodic crest/valley patterns with a distance close to the sarcomere length appeared on the membrane of CMs near the edge of the tissue after ES, suggesting the enhanced transverse tubulation network. The SICM observation is also supported by the fluorescence images of the transverse tubulation network and α-actinin. Correspondingly, essential cardiac functions such as calcium handling and contraction force generation were improved. Our study provides evidence that chronic subthreshold ES can still improve the structural and functional developments of hECTs.
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Affiliation(s)
| | - Navin J. Prajapati
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - Lia Paolino
- Department of Biomedical Engineering, Florida International University, Miami, FL 33199, USA
| | - Lihua Lou
- Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USA
| | - Daniel Cotayo
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - Popular Pandey
- Department of Physics, Florida International University, Miami, FL 33199, USA
| | - Mohammed Shaver
- Department of Biomedical Engineering, Florida International University, Miami, FL 33199, USA
| | - Joshua Hutcheson
- Department of Biomedical Engineering, Florida International University, Miami, FL 33199, USA
- Biomolecular Science Institute, Florida International University, Miami FL 33199, USA
| | - Arvind Agarwal
- Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, USA
| | - Jin He
- Department of Physics, Florida International University, Miami, FL 33199, USA
- Biomolecular Science Institute, Florida International University, Miami FL 33199, USA
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25
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Kreller T, Zimmermann J, van Rienen U, Boccaccini AR, Jonitz-Heincke A, Detsch R. Alternating electric field stimulation: Phenotype analysis and osteoclast activity of differentiated RAW 264.7 macrophages on hydroxyapatite-coated Ti6Al4V surfaces and their crosstalk with MC3T3-E1 pre-osteoblasts. BIOMATERIALS ADVANCES 2023; 146:213285. [PMID: 36640524 DOI: 10.1016/j.bioadv.2023.213285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/21/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Affiliation(s)
- T Kreller
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - J Zimmermann
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany
| | - U van Rienen
- Institute of General Electrical Engineering, University of Rostock, 18051 Rostock, Germany; Department Life, Light and Matter, University of Rostock, 18051 Rostock, Germany; Department Ageing of Individuals and Society, University of Rostock, 18051 Rostock, Germany
| | - A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - A Jonitz-Heincke
- Research Laboratory for Biomechanics and Implant Technology, Department of Orthopedics, Rostock University Medical Center, 18057 Rostock, Germany
| | - R Detsch
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich Alexander-University Erlangen-Nuremberg, 91058 Erlangen, Germany.
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26
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Wang H, Tian J, Jiang Y, Liu S, Zheng J, Li N, Wang G, Dong F, Chen J, Xie Y, Huang Y, Cai X, Wang X, Xiong W, Qi H, Yin L, Wang Y, Sheng X. A 3D biomimetic optoelectronic scaffold repairs cranial defects. SCIENCE ADVANCES 2023; 9:eabq7750. [PMID: 36791200 PMCID: PMC9931229 DOI: 10.1126/sciadv.abq7750] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 01/13/2023] [Indexed: 06/18/2023]
Abstract
Bone fractures and defects pose serious health-related issues on patients. For clinical therapeutics, synthetic scaffolds have been actively explored to promote critical-sized bone regeneration, and electrical stimulations are recognized as an effective auxiliary to facilitate the process. Here, we develop a three-dimensional (3D) biomimetic scaffold integrated with thin-film silicon (Si)-based microstructures. This Si-based hybrid scaffold not only provides a 3D hierarchical structure for guiding cell growth but also regulates cell behaviors via photo-induced electrical signals. Remotely controlled by infrared illumination, these Si structures electrically modulate membrane potentials and intracellular calcium dynamics of stem cells and potentiate cell proliferation and differentiation. In a rodent model, the Si-integrated scaffold demonstrates improved osteogenesis under optical stimulations. Such a wirelessly powered optoelectronic scaffold eliminates tethered electrical implants and fully degrades in a biological environment. The Si-based 3D scaffold combines topographical and optoelectronic stimuli for effective biological modulations, offering broad potential for biomedicine.
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Affiliation(s)
- Huachun Wang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Jingjing Tian
- Department of Medical Science Research Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Yuxi Jiang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100082, China
| | - Shuang Liu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jingchuan Zheng
- School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Ningyu Li
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100082, China
| | - Guiyan Wang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100082, China
| | - Fan Dong
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100082, China
| | - Junyu Chen
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Yang Xie
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Yunxiang Huang
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Xue Cai
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
| | - Xiumei Wang
- School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Wei Xiong
- School of Life Sciences, Tsinghua University, Beijing 100084, China
- IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
| | - Hui Qi
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing 100035, China
| | - Lan Yin
- School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Yuguang Wang
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100082, China
| | - Xing Sheng
- Department of Electronic Engineering, Beijing National Research Center for Information Science and Technology, Institute for Precision Medicine, Center for Flexible Electronics Technology, Tsinghua University, Beijing 100084, China
- IDG/McGovern Institute for Brain Research, Tsinghua University, Beijing 100084, China
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27
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Mendes AX, do Nascimento AT, Duchi S, Quigley AF, Caballero Aguilar LM, Dekiwadia C, Kapsa RMI, Silva SM, Moulton SE. The impact of electrical stimulation protocols on neuronal cell survival and proliferation using cell-laden GelMA/graphene oxide hydrogels. J Mater Chem B 2023; 11:581-593. [PMID: 36533419 DOI: 10.1039/d2tb02387c] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The development of electroactive cell-laden hydrogels (bioscaffolds) has gained interest in neural tissue engineering research due to their inherent electrical properties that can induce the regulation of cell behaviour. Hydrogels combined with electrically conducting materials can respond to external applied electric fields, where these stimuli can promote electro-responsive cell growth and proliferation. A successful neural interface for electrical stimulation should present the desired stable electrical properties, such as high conductivity, low impedance, increased charge storage capacity and similar mechanical properties related to a target neural tissue. We report how different electrical stimulation protocols can impact neuronal cells' survival and proliferation when using cell-laden GelMA/GO hydrogels. The rat pheochromocytoma cell line, PC12s encapsulated into hydrogels showed an increased proliferation behaviour with increasing current amplitudes applied. Furthermore, the presence of GO in GelMA hydrogels enhanced the metabolic activity and DNA content of PC12s compared with GelMA alone. Similarly, hydrogels provided survival of encapsulated cells at higher current amplitudes when compared to cells seeded onto ITO flat surfaces, which expressed significant cell death at a current amplitude of 2.50 mA. Our findings provide new rational choices for electroactive hydrogels and electrical stimulation with broad potential applications in neural tissue engineering research.
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Affiliation(s)
- Alexandre Xavier Mendes
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Adriana Teixeira do Nascimento
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Serena Duchi
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia.,Department of Surgery, University of Melbourne, St Vincent's Hospital Melbourne, Victoria 3065, Australia
| | - Anita F Quigley
- Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia.,School of Electrical and Biomedical Engineering, RMIT University, Melbourne, Victoria 3001, Australia.,Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Victoria 3065, Australia
| | - Lilith M Caballero Aguilar
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia
| | - Chaitali Dekiwadia
- RMIT Microscopy and MicroAnalysis Facility (RMMF), STEM College, RMIT University, Melbourne, VIC, 3000, Australia
| | - Robert M I Kapsa
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia.,School of Electrical and Biomedical Engineering, RMIT University, Melbourne, Victoria 3001, Australia.,Department of Medicine, University of Melbourne, St Vincent's Hospital Melbourne, Victoria 3065, Australia
| | - Saimon Moraes Silva
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia.,Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Simon E Moulton
- ARC Centre of Excellence for Electromaterials Science, School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Melbourne, Victoria 3122, Australia. .,Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, Melbourne, Victoria 3065, Australia.,Iverson Health Innovation Research Institute, Swinburne University of Technology, Melbourne, Victoria 3122, Australia
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28
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Katoh K. Effects of Electrical Stimulation of the Cell: Wound Healing, Cell Proliferation, Apoptosis, and Signal Transduction. Med Sci (Basel) 2023; 11:medsci11010011. [PMID: 36810478 PMCID: PMC9944882 DOI: 10.3390/medsci11010011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/10/2023] [Accepted: 01/15/2023] [Indexed: 01/18/2023] Open
Abstract
Electrical stimulation of the cell can have a number of different effects depending on the type of cell being stimulated. In general, electrical stimulation can cause the cell to become more active, increase its metabolism, and change its gene expression. For example, if the electrical stimulation is of low intensity and short duration, it may simply cause the cell to depolarize. However, if the electrical stimulation is of high intensity or long duration, it may cause the cell to become hyperpolarized. The electrical stimulation of cells is a process by which an electrical current is applied to cells in order to change their function or behavior. This process can be used to treat various medical conditions and has been shown to be effective in a number of studies. In this perspective, the effects of electrical stimulation on the cell are summarized.
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Affiliation(s)
- Kazuo Katoh
- Laboratory of Human Anatomy and Cell Biology, Faculty of Health Sciences, Tsukuba University of Technology, Tsukuba 305-8521, Japan
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29
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Zhong S, Yao S, Zhao Q, Wang Z, Liu Z, Li L, Wang ZL. Electricity‐Assisted Cancer Therapy: From Traditional Clinic Applications to Emerging Methods Integrated with Nanotechnologies. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Songjing Zhong
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 101400 P.R. China
| | - Shuncheng Yao
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 101400 P.R. China
| | - Qinyu Zhao
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- Center on Nanoenergy Research Guangxi University Nanning 530004 P.R. China
| | - Zhuo Wang
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
| | - Zhirong Liu
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 101400 P.R. China
| | - Linlin Li
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- School of Nanoscience and Technology University of Chinese Academy of Sciences Beijing 101400 P.R. China
- Center on Nanoenergy Research Guangxi University Nanning 530004 P.R. China
| | - Zhong Lin Wang
- Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 P.R. China
- Center on Nanoenergy Research Guangxi University Nanning 530004 P.R. China
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30
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Zhan L, Xiao C, Li C, Zhai J, Yang F, Piao J, Ning C, Zhou Z, Yu P, Qi S. Internal Wireless Electrical Stimulation from Piezoelectric Barium Titanate Nanoparticles as a New Strategy for the Treatment of Triple-Negative Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45032-45041. [PMID: 36153948 DOI: 10.1021/acsami.2c12668] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive BC subtype with a higher metastatic rate and a worse 5-year survival ratio than the other BC. It is an urgent need to develop a noninvasive treatment with high efficiency to resist TNBC cell proliferation and invasion. Internal wireless electric stimulation (ES) based on piezoelectric materials is an emerging noninvasive strategy, with adjustable ES intensity and excellent biosafety. In this study, three different barium titanate nanoparticles (BTNPs) with different crystal phases and piezoelectric properties were studied. Varying intensities of internal ES were generated from the three BTNPs (i.e., BTO, U-BTO, P-BTO). In vitro tests revealed that the internal ES from BTNPs was efficient at reducing the proliferative potential of cancer cells, particularly BC cells. In vitro experiments on MDA-MB-231, a typical TNBC cell line, further revealed that the internal wireless ES from BTNPs significantly inhibited cell growth and migration up to about 82% and 60%, respectively. In vivo evaluation of MDA-MB-231 tumor-bearing mice indicated that internal ES not only resisted almost 70% tumor growth but also significantly inhibited lung metastasis. More importantly, in vitro and in vivo studies demonstrated a favorable correlation between the anticancer impact and the intensities of ES. The underlying mechanism of MDA-MB-231 cell proliferation and metastasis inhibition caused by internal ES was also investigated. In summary, our results revealed the effect and mechanism of internal ES from piezoelectric nanoparticles on TNBC cell proliferation and migration regulation and proposed a promising noninvasive therapeutic strategy for TNBC with minimal side effects while exhibiting good therapeutic efficiency.
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Affiliation(s)
- Lizhen Zhan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Cairong Xiao
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Changhao Li
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Jinxia Zhai
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Fabang Yang
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Jinhua Piao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Chengyun Ning
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
- China-Singapore International Joint Research Institute, Guangzhou 511365, China
| | - Zhengnan Zhou
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
| | - Peng Yu
- School of Material Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Metallic Materials Surface Functionalization Engineering Research Center of Guangdong Province, South China University of Technology, Guangzhou 510641, China
- China-Singapore International Joint Research Institute, Guangzhou 511365, China
| | - Suijian Qi
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
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He L, Yao Y, Wang N, Nan G. Effects of electric charge on fracture healing. Sci Rep 2022; 12:15839. [PMID: 36151271 PMCID: PMC9508132 DOI: 10.1038/s41598-022-20153-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 09/09/2022] [Indexed: 11/19/2022] Open
Abstract
Fracture nonunion is a common and challenging complication. Although direct current stimulation has been suggested to promote fracture healing, differences in cell density near the positive and negative electrodes have been reported during direct current stimulation. This study aimed to explore the effects of these differences on osteoblast proliferation and fracture healing. MC3T3-E1 cells were stimulated by positive and negative charges to observe cell proliferation, apoptosis, and osteogenic factor expression in vitro, while positive and negative charges were connected to the Kirschner wires of the fractures in an in vivo double-toe fracture model in New Zealand white rabbits and fracture healing was assessed in digital radiography (DR) examinations performed on days 1, 15, 30. Bone tissue samples of all rabbits were analysed histologically after the last examination. The results showed that in comparison with the control group, after DC stimulation, the number of cells near the positive electrode decreased significantly (P < 0.05), apoptosis increased (P < 0.05), the expression of osteocalcin, osteoblast-specific genes, and osteonectin decreased significantly near the positive electrode (P < 0.05) and increased significantly at the negative electrode (P < 0.05). The fracture at the positive electrode junction of New Zealand white rabbits did not heal. Histomorphological analysis showed more bone trabeculae and calcified bone in the bone tissue sections of the control group and the negative electrode group than in the positive electrode group. The bone trabeculae were thick and showed good connections. However, positive charge inhibited osteoblast proliferation and a positive charge at fracture sites did not favour fracture healing. Thus, a positive charge near the fracture site may be a reason for fracture nonunion.
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Affiliation(s)
- Ling He
- Department of Orthopaedics Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China.,Department of Orthopaedics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yingling Yao
- Department of Orthopaedics Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China.,Department of Orthopaedics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Nan Wang
- Department of Orthopaedics Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China.,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China.,Department of Orthopaedics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Guoxin Nan
- Department of Orthopaedics Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, China. .,Chongqing Engineering Research Center of Stem Cell Therapy, Chongqing, China. .,Department of Orthopaedics, Children's Hospital of Chongqing Medical University, Chongqing, China.
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Honda Y, Takahashi A, Tanaka N, Kajiwara Y, Sasaki R, Okita S, Sakamoto J, Okita M. Muscle contractile exercise through a belt electrode device prevents myofiber atrophy, muscle contracture, and muscular pain in immobilized rat gastrocnemius muscle. PLoS One 2022; 17:e0275175. [PMID: 36149919 PMCID: PMC9506634 DOI: 10.1371/journal.pone.0275175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 09/12/2022] [Indexed: 11/19/2022] Open
Abstract
Purpose
Immobilization of skeletal muscles causes muscle atrophy, muscle contracture, and muscle pain, the mechanisms of which are related to macrophage accumulation. However, muscle contractile exercise through a belt electrode device may mitigate macrophage accumulation. We hypothesized that such exercise would be effective in preventing myofiber atrophy, muscle contracture, and muscular pain. This study tested this hypothesis in immobilized rat gastrocnemius muscle.
Materials and methods
A total of 32 rats were divided into the following control and experimental groups: immobilization (immobilized treatment only), low-frequency (LF; immobilized treatment and muscle contractile exercise with a 2 s (do) /6 s (rest) duty cycle), and high-frequency (HF; immobilized treatment and muscle contractile exercise with a 2 s (do)/2 s (rest) duty cycle). Electrical stimulation was performed at 50 Hz and 4.7 mA, and muscle contractile exercise was applied to the lower limb muscles for 15 or 20 min/session (once daily) for 2 weeks (6 times/week). After the behavioral tests, the bilateral gastrocnemius muscles were collected for analysis.
Results
The number of macrophages, the Atrogin-1 and MuRF-1 mRNA expression, and the hydroxyproline content in the HF group were lower than those in the immobilization and LF groups. The cross-sectional area (CSA) of type IIb myofibers in the superficial region, the PGC-1α mRNA expression, and the range of motion of dorsiflexion in the HF group were significantly higher than those in the immobilization and LF groups. The pressure pain thresholds in the LF and HF groups were significantly higher than that in the immobilization group, and the nerve growth factor (NGF) content in the LF and HF groups was significantly lower than that in the immobilization group.
Conclusion
Muscle contractile exercise through the belt electrode device may be effective in preventing immobilization-induced myofiber atrophy, muscle contracture, and muscular pain in the immobilized rat gastrocnemius muscle.
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Affiliation(s)
- Yuichiro Honda
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Nagasaki, Japan
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Ayumi Takahashi
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Natsumi Tanaka
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Physical Therapy, School of Rehabilitation Sciences, Seirei Christopher University, Hamamatsu, Shizuoka, Japan
| | - Yasuhiro Kajiwara
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Rehabilitation, Nagasaki University Hospital, Nagasaki, Nagasaki, Japan
| | - Ryo Sasaki
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Rehabilitation, Jyuzenkai Hospital, Nagasaki, Nagasaki, Japan
| | - Seima Okita
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- Department of Rehabilitation, The Japanese Red Cross Nagasaki Genbaku Hospital, Nagasaki, Nagasaki, Japan
| | - Junya Sakamoto
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Nagasaki, Japan
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
| | - Minoru Okita
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Nagasaki, Japan
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Nagasaki, Japan
- * E-mail:
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Microfluidic Electroceuticals Platform for Therapeutic Strategies of Intervertebral Disc Degeneration: Effects of Electrical Stimulation on Human Nucleus Pulposus Cells under Inflammatory Conditions. Int J Mol Sci 2022; 23:ijms231710122. [PMID: 36077518 PMCID: PMC9456475 DOI: 10.3390/ijms231710122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 11/26/2022] Open
Abstract
The degeneration of an intervertebral disc (IVD) is a major cause of lower back pain. IVD degeneration is characterized by the abnormal expression of inflammatory cytokines and matrix degradation enzymes secreted by IVD cells. In addition, macrophage-mediated inflammation is strongly associated with IVD degeneration. However, the precise pathomechanisms of macrophage-mediated inflammation in IVD are still unknown. In this study, we developed a microfluidic platform integrated with an electrical stimulation (ES) array to investigate macrophage-mediated inflammation in human nucleus pulposus (NP). This platform provides multiple cocultures of different cell types with ES. We observed macrophage-mediated inflammation and considerable migration properties via upregulated expression of interleukin (IL)-6 (p < 0.001), IL-8 (p < 0.05), matrix metalloproteinase (MMP)-1 (p < 0.05), and MMP-3 (p < 0.05) in human NP cells cocultured with macrophages. We also confirmed the inhibitory effects of ES at 10 μA due to the production of IL-6 (p < 0.05) and IL-8 (p < 0.01) under these conditions. Our findings indicate that ES positively affects degenerative inflammation in diverse diseases. Accordingly, the microfluidic electroceutical platform can serve as a degenerative IVD inflammation in vitro model and provide a therapeutic strategy for electroceuticals.
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Pulsed Electrical Stimulation Affects Osteoblast Adhesion and Calcium Ion Signaling. Cells 2022; 11:cells11172650. [PMID: 36078058 PMCID: PMC9454840 DOI: 10.3390/cells11172650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/18/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
An extensive research field in regenerative medicine is electrical stimulation (ES) and its impact on tissue and cells. The mechanism of action of ES, particularly the role of electrical parameters like intensity, frequency, and duration of the electric field, is not yet fully understood. Human MG-63 osteoblasts were electrically stimulated for 10 min with a commercially available multi-channel system (IonOptix). We generated alternating current (AC) electrical fields with a voltage of 1 or 5 V and frequencies of 7.9 or 20 Hz, respectively. To exclude liquid-mediated effects, we characterized the AC-stimulated culture medium. AC stimulation did not change the medium’s pH, temperature, and oxygen content. The H2O2 level was comparable with the unstimulated samples except at 5 V_7.9 Hz, where a significant increase in H2O2 was found within the first 30 min. Pulsed electrical stimulation was beneficial for the process of attachment and initial adhesion of suspended osteoblasts. At the same time, the intracellular Ca2+ level was enhanced and highest for 20 Hz stimulated cells with 1 and 5 V, respectively. In addition, increased Ca2+ mobilization after an additional trigger (ATP) was detected at these parameters. New knowledge was provided on why electrical stimulation contributes to cell activation in bone tissue regeneration.
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Cifuentes J, Muñoz-Camargo C, Cruz JC. Reduced Graphene Oxide-Extracellular Matrix Scaffolds as a Multifunctional and Highly Biocompatible Nanocomposite for Wound Healing: Insights into Characterization and Electroconductive Potential. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2857. [PMID: 36014722 PMCID: PMC9415408 DOI: 10.3390/nano12162857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 07/29/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
The development of novel regenerative technologies based on the implementation of natural extracellular matrix (ECM), or individual components of ECM combined with multifunctional nanomaterials such as graphene oxide and reduced graphene oxide, has demonstrated remarkable results in wound healing and tissue engineering. However, the synthesis of these nanocomposites involves great challenges related to maintaining the biocompatibility with a simultaneous improvement in their functionalities. Based on that, in this research we developed novel nanoengineered ECM-scaffolds formed by mixing small intestinal submucosa (SIS) with graphene oxide (GO)/reduced graphene oxide (rGO) to improve electrical conductivity while maintaining remarkable biocompatibility. For this, decellularized SIS was combined with GO to form the scaffold precursor for subsequent lyophilization, chemically crosslinking and in situ reduction. The obtained GO and rGO were characterized via Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), electrical conductivity testing and atomic force microscopy (AFM). The results confirm the suitable synthesis of GO, the effective reduction to rGO and the significant increase in the electrical conductivity (more than four orders of magnitude higher than bare GO). In addition, the graphene oxide/reduced graphene oxide-SIS scaffolds were characterized via Raman spectroscopy, FTIR, TGA, SEM, porosity assay (higher than 97.5% in all cases) and protein secondary structural analysis. Moreover, the biocompatibility of scaffolds was studied by standardized assays of hemolysis activity (less than 0.5%), platelet activation and deposition, and cell viability in Vero, HaCat and HFF-1 cells (higher than 90% for all evaluated cell lines on the different scaffolds). The obtained results confirm the remarkable biocompatibility, as supported by high hemocompatibility, low cytotoxicity and no negative impact on platelet activation and deposition. Finally, structural characteristics such as pore size and interconnectivity as well as superior cell attachment abilities also corroborated the potential of the developed nanoengineered ECM-scaffolds as a multifunctional nanoplatform for application in regenerative medicine and tissue engineering.
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Kodolova-Chukhontseva VV, Shishov MA, Kolbe KA, Smirnova NV, Dobrovol’skaya IP, Dresvyanina EN, Bystrov SG, Terebova NS, Kamalov AM, Bursian AE, Ivan’kova EM, Yudin VE. Conducting Composite Material Based on Chitosan and Single-Wall Carbon Nanotubes for Cellular Technologies. Polymers (Basel) 2022; 14:polym14163287. [PMID: 36015544 PMCID: PMC9413541 DOI: 10.3390/polym14163287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Biocompatible electrically conducting chitosan-based films filled with single-wall carbon nanotubes were obtained. Atomic force microscopic studies of the free surface topography revealed a change in the morphology of chitosan films filled with single-wall carbon nanotubes. Introducing 0.5 wt.% of single-wall carbon nanotubes into chitosan results in an increase in tensile strength of the films (up to ~180 MPa); the tensile strain values also rise up to ~60%. It was demonstrated that chitosan films containing 0.1–3.0 wt.% of single-wall carbon nanotubes have higher conductivity (10 S/m) than pure chitosan films (10−11 S/m). The investigation of electrical stimulation of human dermal fibroblasts on chitosan/single-wall carbon nanotubes film scaffolds showed that the biological effect of cell electrical stimulation depends on the content of single-walled carbon nanotubes in the chitosan matrix.
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Affiliation(s)
- Vera Vladimirovna Kodolova-Chukhontseva
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Mikhail Alexandrovich Shishov
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Konstantin Andreevich Kolbe
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Natalia Vladimirovna Smirnova
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Irina Petrovna Dobrovol’skaya
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Elena Nikolaevna Dresvyanina
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
- Institute of Textile and Fashion, Saint Petersburg State University of Industrial Technologies and Design, Bolshaya Morskaya Street, 18, 191186 Saint-Petersburg, Russia
- Correspondence:
| | - Sergei Gennadievich Bystrov
- Department of Physics and Surface Chemistry, Udmurt Federal Research Center UB RAS, Tatiana Baramzina Str., 34, 426067 Izhevsk, Russia
| | - Nadezda Semenovna Terebova
- Department of Physics and Surface Chemistry, Udmurt Federal Research Center UB RAS, Tatiana Baramzina Str., 34, 426067 Izhevsk, Russia
| | - Almaz Maratovich Kamalov
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
| | - Anna Ericovna Bursian
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Elena Mikhailovna Ivan’kova
- Laboratory No 8—Mechanics of Polymers and Composite, Institute of Macromolecular Compounds Russian Academy of Science, V.O., Bolshoy pr. 31, 199004 Saint-Petersburg, Russia
| | - Vladimir Evgenievich Yudin
- Research Laboratory “Polymer Materials for Tissue Engineering and Transplantology”, Institute of Biomedical Systems and Biotechnology, Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya Street, 29, 195251 Saint-Petersburg, Russia
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Lee PS, Heinemann C, Zheng K, Appali R, Alt F, Krieghoff J, Bernhardt A, Boccaccini AR, van Rienen U, Hintze V. The interplay of collagen/bioactive glass nanoparticle coatings and electrical stimulation regimes distinctly enhanced osteogenic differentiation of human mesenchymal stem cells. Acta Biomater 2022; 149:373-386. [PMID: 35817340 DOI: 10.1016/j.actbio.2022.06.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 06/24/2022] [Accepted: 06/30/2022] [Indexed: 12/25/2022]
Abstract
Increasing research has incorporated bioactive glass nanoparticles (BGN) and electric field (EF) stimulation for bone tissue engineering and regeneration applications. However, their interplay and the effects of different EF stimulation regimes on osteogenic differentiation of human mesenchymal stem cells (hMSC) are less investigated. In this study, we introduced EF with negligible magnetic field strength through a well-characterized transformer-like coupling (TLC) system, and applied EF disrupted (4/4) or consecutive (12/12) regime on type I collagen (Col) coatings with/without BGN over 28 days. Additionally, dexamethasone was excluded to enable an accurate interpretation of BGN and EF in supporting osteogenic differentiation. Here, we demonstrated the influences of BGN and EF on collagen topography and maintaining coating stability. Coupled with the release profile of Si ions from the BGN, cell proliferation and calcium deposition were enhanced in the Col-BGN samples after 28 days. Further, osteogenic differentiation was initiated as early as d 7, and each EF regime was shown to activate distinct pathways. The disrupted (4/4) regime was associated with the BMP/Smad4 pathways that up-regulate Runx2/OCN gene expression on d 7, with a lesser effect on ALP activity. In contrast, the canonical Wnt/β-Catenin signaling pathway activated through mechanotransduction cues is associated with the consecutive (12/12) regime, with significantly elevated ALP activity and Sp7 gene expression reported on d 7. In summary, our results illustrated the synergistic effects of BGN and EF in different stimulation regimes on osteogenic differentiation that can be further exploited to enhance current bone tissue engineering and regeneration approaches. STATEMENT OF SIGNIFICANCE: The unique release mechanisms of silica from bioactive glass nanoparticles (BGN) were coupled with pulsatile electric field (EF) stimulation to support hMSC osteogenic differentiation, in the absence of dexamethasone. Furthermore, the interplay with consecutive (12/12) and disrupted (4/4) stimulation regimes was investigated. The reported physical, mechanical and topographical effects of BGN and EF on the collagen coating, hMSC and the distinct progression of osteogenic differentiation (canonical Wnt/β-Catenin and BMP/Smad) triggered by respective stimulation regime were not explicitly reported previously. These results provide the fundamentals for further exploitations on BGN composites with metal ions and rotation of EF regimes to enhance osteogenic differentiation. The goal is sustaining continual osteogenic differentiation and achieving a more physiologically-relevant state and bone constructs in vitro.
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Affiliation(s)
- Poh Soo Lee
- Institute of General Electrical Engineering, Faculty of Computer Science and Electrical Engineering, University of Rostock, Albert-Einstein-Straße 2, Rostock 18059, Germany; Max Bergmann Centre of Biomaterials, Institute of Materials Science, Faculty of Mechanical Science and Engineering, Technische Universität Dresden, Budapesterstraße 27, Dresden, Saxony 01069, Germany.
| | - Christiane Heinemann
- Max Bergmann Centre of Biomaterials, Institute of Materials Science, Faculty of Mechanical Science and Engineering, Technische Universität Dresden, Budapesterstraße 27, Dresden, Saxony 01069, Germany
| | - Kai Zheng
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Material Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremburg, Cauerstraße 6, Erlangen 91058, Germany
| | - Revathi Appali
- Institute of General Electrical Engineering, Faculty of Computer Science and Electrical Engineering, University of Rostock, Albert-Einstein-Straße 2, Rostock 18059, Germany; Department of Ageing of Individuals and Society, Interdisciplinary Faculty, University of Rostock, Albert-Einstein-Straße 21, Rostock 18059, Germany
| | - Franziska Alt
- Max Bergmann Centre of Biomaterials, Institute of Materials Science, Faculty of Mechanical Science and Engineering, Technische Universität Dresden, Budapesterstraße 27, Dresden, Saxony 01069, Germany
| | - Jan Krieghoff
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University Leipzig. Eilenburgerstraße 15a, Leipzig 04317, Germany
| | - Anne Bernhardt
- Centre for Translational Bone, Joint and Soft Tissue Research, University Hospital Carl Gustav Carus and Faculty of Medicine, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Aldo R Boccaccini
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing 210029, China; Department of Material Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremburg, Cauerstraße 6, Erlangen 91058, Germany
| | - Ursula van Rienen
- Institute of General Electrical Engineering, Faculty of Computer Science and Electrical Engineering, University of Rostock, Albert-Einstein-Straße 2, Rostock 18059, Germany; Department of Ageing of Individuals and Society, Interdisciplinary Faculty, University of Rostock, Albert-Einstein-Straße 21, Rostock 18059, Germany; Department of Life, Light and Matter, Interdisciplinary Faculty, University of Rostock, Albert-Einstein-Straße 25, Rostock 18059, Germany
| | - Vera Hintze
- Max Bergmann Centre of Biomaterials, Institute of Materials Science, Faculty of Mechanical Science and Engineering, Technische Universität Dresden, Budapesterstraße 27, Dresden, Saxony 01069, Germany.
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Ren W, Lin Z, Fan Y, Xing J, Liu G, Xiao T, Wang Z, Zhou Z, Zhang T, Song Z, Yu P, Ning C. Programmable biological state-switching photoelectric nanosheets for the treatment of infected wounds. Mater Today Bio 2022; 15:100292. [PMID: 35634172 PMCID: PMC9130531 DOI: 10.1016/j.mtbio.2022.100292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/26/2022] [Accepted: 05/12/2022] [Indexed: 10/25/2022]
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Liu Z, Liu Y, Yushan M, Yusufu A. Enhanced Nerve Regeneration by Bionic Conductive Nerve Scaffold Under Electrical Stimulation. Front Neurosci 2022; 16:810676. [PMID: 35573307 PMCID: PMC9091912 DOI: 10.3389/fnins.2022.810676] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/14/2022] [Indexed: 11/15/2022] Open
Abstract
Repair of peripheral nerve defect (PND) with a poor prognosis is hard to deal with. Neural conduit applied to nerve defect at present could not achieve the effect of autologous nerve transplantation. We prepared bionic conductive neural scaffolds to provide a new strategy for the treatment of PNDs. The highly aligned poly (L-lactic acid) (PLLA) fiber mats and the multi-microchannel conductive scaffolds were combined into bionic conductive nerve scaffolds, which were implanted into rats with sciatic nerve defects. The experimental animals were divided into the scaffold group (S), scaffold with electrical stimulation (ES) group (S&E), and autologous nerve transplantation group (AT). The regenerative effect of bionic conductive nerve scaffolds was analyzed. Compared with aligned PLLA fiber mats (APFMs), highly aligned fiber mats had a higher fiber orientation and did not change the tensile strength, Young’s modulus, degradation rate, elongation at break of the fiber membrane, and biocompatibility. The bionic conductive nerve scaffolds were well matched with the rat sciatic nerve. The evaluations of the sciatic nerve in Group S&E were close to those in Group AT and better than those in Group S. Immunohistochemical results showed that the expression levels of neurofilament heavy polypeptide (NF-H) and protein S100-B (S100-β) in Group S&E were higher than those in Group S, and the expression levels of low-density lipoprotein receptor-related protein 4 (LRP4), mitogen-activated protein kinase (MAPK) p38, extracellular signal-regulated kinase (ERK), and mitogen-activated protein kinase kinase (MEK) in Group AT were higher than those in Group S. Bionic conductive nerve scaffolds combined with ES could enhance peripheral nerve regeneration and achieve satisfactory nerve regeneration close to autologous nerve grafts. ERK, p38 MAPK, MEK, and LRP4 may be involved in peripheral nerve regeneration under ES.
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Affiliation(s)
- Zhenhui Liu
- Department of Orthopedics, Henan Provincial People’s Hospital, Zhengzhou, China
- People’s Hospital of Zhengzhou University, Zhengzhou, China
- People’s Hospital of Henan University, Zhengzhou, China
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yanshi Liu
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Maimaiaili Yushan
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Aihemaitijiang Yusufu
- Department of Trauma and Micro Reconstructive Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
- *Correspondence: Aihemaitijiang Yusufu,
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40
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Chen MM, Xu CH, Zhao W, Chen HY, Xu JJ. Single Cell Imaging of Electrochemiluminescence-Driven Photodynamic Therapy. Angew Chem Int Ed Engl 2022; 61:e202117401. [PMID: 35165987 DOI: 10.1002/anie.202117401] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Indexed: 01/06/2023]
Abstract
We report a photodynamic therapy driven by electrochemiluminescence (ECL). The luminescence generated by Ru(bpy)3 2+ and co-reactant tripropylamine (TPA) pair acts as both optical readout for ECL imaging, and light source for the excitation of photosensitizer to produce reactive oxygen species (ROS) in photodynamic therapy (PDT) system. The ECL-driven PDT (ECL-PDT) relies on the effective energy transfer from ECL emission to photosensitizer chlorin e6 (Ce6), which sensitizes the surrounding O2 into ROS. The dynamic process of gradual morphological changes, the variation of cell-matrix adhesions, as well as the increase of cell membrane permeability in the process of ECL-PDT were monitored under ECL microscopy (ECLM) with good spatiotemporal resolution. Combining real-time imaging with ECL-PDT, this new strategy provides not only new insights into dynamic cellular processes, but also promising potential of ECL in clinical applications.
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Affiliation(s)
- Ming-Ming Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Cong-Hui Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.,Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.,Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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Panda AK, Sitaramgupta VSN, Pandya HJ, Basu B. Electrical waveform dependent osteogenesis on PVDF/BaTiO 3 composite using a customized and programmable cell stimulator. Biotechnol Bioeng 2022; 119:1578-1597. [PMID: 35244212 DOI: 10.1002/bit.28076] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 11/07/2022]
Abstract
Directing cellular functionalities using biomaterial-based bioelectronic stimulation remains a significant constraint in translating research outcomes to address specific clinical challenges. Electrical stimulation is now being clinically used as a therapeutic treatment option to promote bone tissue regeneration and to improve neuromuscular functionalities. However, the nature of the electrical waveforms during the stimulation and underlying biophysical rationale are still not scientifically well explored. Furthermore, bone-mimicking implant-based bioelectrical regulation of osteoinductivity has not been translated to clinics. The present study demonstrates the role of the waveform in electrical signal to direct differentiation of stem cells on an electroactive polymeric substrate, using monophasic DC, square wave, and biphasic wave. In this regard, an in-house electrical stimulation device has been fabricated for the uninterrupted delivery of programmed electrical signals to stem cells in culture. To provide a functional platform for stem cells to differentiate, barium titanate (BaTiO3 , BT) reinforced PVDF has been developed with mechanical properties similar to bone. The electrical stimulation of human mesenchymal stem cells (hMSCs) on PVDF/BT composite inhibited proliferation rate at day 7, indicating early commitment for differentiation. The phenotypical characteristics of DC stimulated hMSCs provided signatures of differentiation towards osteogenic lineage, which was subsequently confirmed using ALP assay, collagen deposition, matrix mineralization, and genetic expression. Our findings suggest that DC stimulation induced early osteogenesis in hMSCs with a higher level of intracellular reactive oxygen species (ROS), whereas the stimulation with square wave directed late osteogenesis with a lower ROS regeneration. In summary, the present study critically analyzes the role of electrical stimulation and its waveforms in regulating osteogenesis, without external biochemical differentiation inducers, on a bone-mimicking functional substrate. Such a strategy can potentially be adopted to develop orthopedic implant-based bioelectronic medicine for bone regeneration. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Asish Kumar Panda
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore, India
| | - V S N Sitaramgupta
- Department of Electronic Systems Engineering, Indian Institute of Science, Bangalore, India
| | - Hardik J Pandya
- Department of Electronic Systems Engineering, Indian Institute of Science, Bangalore, India
- Centre for Product Design and Manufacturing, Indian Institute of Science, Bangalore, India
| | - Bikramjit Basu
- Laboratory for Biomaterials, Materials Research Centre, Indian Institute of Science, Bangalore, India
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore, India
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42
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Basturkmen B, Ergene E, Doganay D, Yilgor Huri P, Unalan HE, Aksoy EA. Silver nanowire loaded poly(ε-caprolactone) nanocomposite fibers as electroactive scaffolds for skeletal muscle regeneration. BIOMATERIALS ADVANCES 2022; 134:112567. [PMID: 35527139 DOI: 10.1016/j.msec.2021.112567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 06/14/2023]
Abstract
Volumetric muscle loss (VML) due to trauma and tumor removal operations affects millions of people every year. Although skeletal muscle has a natural repair mechanism, it cannot provide self-healing above a critical level of VML. In this study, nanocomposite aligned fiber scaffolds as support materials were developed for volumetric skeletal muscle regeneration. For this purpose, silver nanowire (Ag NW) loaded poly(ε-caprolactone) (PCL) nanocomposite fiber scaffolds (PCL-Ag NW) were prepared to mimic the aligned electroactive structure of skeletal muscle and provide topographic and conductive environment to modulate cellular behavior and orientation. A computer-aided rotational wet spinning (RWS) system was designed to produce high-yield fiber scaffolds. Nanocomposite fiber bundles with lengths of 50 cm were fabricated via this computer-aided RWS system. The morphological, chemical, thermal properties and biodegradation profiles of PCL and PCL-Ag NW nanocomposite fibers were characterized in detail. The proliferation behavior and morphology of C2C12 mouse myoblasts were investigated on PCL and PCL-Ag NW nanocomposite fibrous scaffolds with and without electrical stimulation. Significantly enhanced cell proliferation was observed on PCL-Ag NW nanocomposite fibers compared to neat PCL fibers with electrical stimulations of 1.5 V, 3 V and without electrical stimulation.
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Affiliation(s)
- Berk Basturkmen
- Department of Polymer Science and Technology, Hacettepe University, Ankara 06800, Turkey
| | - Emre Ergene
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
| | - Doga Doganay
- Department of Metallurgical and Materials Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
| | - Pinar Yilgor Huri
- Department of Biomedical Engineering, Ankara University, Ankara 06830, Turkey
| | - Husnu Emrah Unalan
- Department of Metallurgical and Materials Engineering, Middle East Technical University (METU), Ankara 06800, Turkey
| | - Eda Ayse Aksoy
- Department of Polymer Science and Technology, Hacettepe University, Ankara 06800, Turkey; Department of Basic Pharmaceutical Sciences, Hacettepe University, Ankara 06100, Turkey.
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Chen M, Xu C, Zhao W, Chen H, Xu J. Single Cell Imaging of Electrochemiluminescence‐Driven Photodynamic Therapy. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ming‐Ming Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Cong‐Hui Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
- Institute of Nanochemistry and Nanobiology School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
- Institute of Nanochemistry and Nanobiology School of Environmental and Chemical Engineering Shanghai University Shanghai 200444 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jing‐Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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Application of estrogen for the treatment of stress urinary incontinence in mice. Arch Gynecol Obstet 2022; 305:1115-1125. [PMID: 35174407 DOI: 10.1007/s00404-022-06435-1] [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: 01/19/2022] [Accepted: 02/02/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND Stress urinary incontinence (SUI) is a pervasive health tissue among women, which seriously affects the quality of life. The etiology of SUI is complex and diverse in women, with past studies having demonstrated that estrogen deficiency plays an important role in pelvic floor muscle atrophy and urethral degeneration. We comprehensively investigated the effects of estrogen in the treatment of SUI in female mice at cellular and animal levels. METHODS L929 fibroblasts mechanical injury model was established by four-point bending device, and SUI mouse model was established by vaginal dilation method commonly used to simulate labor injury. After estrogen treatment, the expressions of Collagen I, Collagen III, Elastin, TIMP-1, TIMP-2, MMP-2, and MMP-9 were detected, the leak point pressure (LPP) and abdominal leak point pressure (ALPP) of mice in each group were detected, and both the effect of estrogen on extracellular matrix remodeling of mouse urethra and anterior vaginal wall was observed from the histological level. RESULTS The results revealed that an appropriate amount of estrogen can promote the expression of Collagen I, Collagen III, Elastin, TIMP-1, and TIMP-2, decrease the expression of MMP-2 and MMP-9, and maintain the dynamic balance of MMPs/TIMPs at both cellular and animal levels. Meanwhile, we determined that estrogen can increase the LPP and ALPP values of SUI mice. The collagen fibers' content in the mice treated with estrogen was significantly greater than in the control group mice. CONCLUSIONS The estrogen may alleviate the symptoms of SUI by reconstituting ECM, thus laying a solid foundation for further exploration of estrogen therapy.
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Lim J, Yoon J, Shin M, Lee KB, Choi JW. Biomolecular Electron Controller Composed of Nanobiohybrid with Electrically Released Complex for Spatiotemporal Control of Neuronal Differentiation. SMALL METHODS 2022; 6:e2100912. [PMID: 35174997 DOI: 10.1002/smtd.202100912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/11/2021] [Indexed: 06/14/2023]
Abstract
In vitro spatiotemporal control of cell differentiation is a critical issue in several biomedical fields such as stem cell therapy and regenerative medicine, as it enables the generation of heterogeneous tissue structures similar to those of their native counterparts. However, the simultaneous control of both spatial and temporal cell differentiation poses important challenges, and therefore no previous studies have achieved this goal. Here, the authors develop a cell differentiation biomolecular electron controller ("Biomoletron") composed of recombinant proteins, DNA, Au nanoparticles, peptides, and an electrically released complex with retinoic acid (RA) to spatiotemporally control SH-SY5Y cell differentiation. RA is only released from the Biomoletron when the complex is electrically stimulated, thus demonstrating the temporal control of SH-SY5Y cell differentiation. Furthermore, by introducing a patterned Au substrate that allows controlling the area where the Biomoletron is immobilized, spatiotemporal differentiation of the SH-SY5Y cell is successfully achieved. Therefore, the proposed Biomoletron-mediated differentiation method provides a promising strategy for spatiotemporal cell differentiation control with applications in regenerative medicine and cell therapy.
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Affiliation(s)
- Joungpyo Lim
- Department of Chemical & Biomolecular Engineering, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Jinho Yoon
- Department of Chemical & Biomolecular Engineering, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Minkyu Shin
- Department of Chemical & Biomolecular Engineering, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, Mapo-gu, Seoul, 04107, Republic of Korea
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Das R, Langou S, Le TT, Prasad P, Lin F, Nguyen TD. Electrical Stimulation for Immune Modulation in Cancer Treatments. Front Bioeng Biotechnol 2022; 9:795300. [PMID: 35087799 PMCID: PMC8788921 DOI: 10.3389/fbioe.2021.795300] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/17/2021] [Indexed: 12/17/2022] Open
Abstract
Immunotherapy is becoming a very common treatment for cancer, using approaches like checkpoint inhibition, T cell transfer therapy, monoclonal antibodies and cancer vaccination. However, these approaches involve high doses of immune therapeutics with problematic side effects. A promising approach to reducing the dose of immunotherapeutic agents given to a cancer patient is to combine it with electrical stimulation, which can act in two ways; it can either modulate the immune system to produce the immune cytokines and agents in the patient's body or it can increase the cellular uptake of these immune agents via electroporation. Electrical stimulation in form of direct current has been shown to reduce tumor sizes in immune-competent mice while having no effect on tumor sizes in immune-deficient mice. Several studies have used nano-pulsed electrical stimulations to activate the immune system and drive it against tumor cells. This approach has been utilized for different types of cancers, like fibrosarcoma, hepatocellular carcinoma, human papillomavirus etc. Another common approach is to combine electrochemotherapy with immune modulation, either by inducing immunogenic cell death or injecting immunostimulants that increase the effectiveness of the treatments. Several therapies utilize electroporation to deliver immunostimulants (like genes encoded with cytokine producing sequences, cancer specific antigens or fragments of anti-tumor toxins) more effectively. Lastly, electrical stimulation of the vagus nerve can trigger production and activation of anti-tumor immune cells and immune reactions. Hence, the use of electrical stimulation to modulate the immune system in different ways can be a promising approach to treat cancer.
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Affiliation(s)
- Ritopa Das
- Department of Biomedical Engineering, University of Connecticut, Mansfield, CT, United States
| | - Sofia Langou
- Department of Physiology and Neurobiology, University of Connecticut, Mansfield, CT, United States
| | - Thinh T. Le
- Department of Mechanical Engineering, University of Connecticut, Mansfield, CT, United States
| | - Pooja Prasad
- Department of Cell and Molecular Biology, University of Connecticut, Mansfield, CT, United States
| | - Feng Lin
- Department of Mechanical Engineering, University of Connecticut, Mansfield, CT, United States
| | - Thanh D. Nguyen
- Department of Biomedical Engineering, University of Connecticut, Mansfield, CT, United States
- Department of Mechanical Engineering, University of Connecticut, Mansfield, CT, United States
- Institute of Materials Science, University of Connecticut, Mansfield, CT, United States
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47
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Emerging trends and prospects of electroconductive bioinks for cell-laden and functional 3D bioprinting. Biodes Manuf 2022. [DOI: 10.1007/s42242-021-00169-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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48
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Chen Y, Zhang S, Li Y, Yan H, Ba Y, Wang X, Shi N, Liu C. Gastric Electrical Stimulation Increases the Proliferation of Interstitial Cells of Cajal and Alters the Enteric Nervous System in Diabetic Rats. Neuromodulation 2022; 25:1106-1114. [DOI: 10.1016/j.neurom.2021.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022]
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49
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Zhao Y, Wang P, Chen Z, Li M, Zhang D, Yang L, Li H. Research Progress of Electrical Stimulation in Ischemic Heart Disease. Front Cardiovasc Med 2021; 8:761877. [PMID: 34805318 PMCID: PMC8595213 DOI: 10.3389/fcvm.2021.761877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/08/2021] [Indexed: 11/13/2022] Open
Abstract
Ischemic heart disease (IHD) is a considerable health burden worldwide with high mortality and morbidity. Treatments for IHD are mainly focused on decreasing oxygen demand or increasing myocardial oxygen supply, including pharmacological, interventional, and surgical treatment, but there are also some limitations. Therefore, it is important to find a simple, effective, and economical treatment. As non-invasive and safe physiotherapy, electrical stimulation (ES) has a promising application in the treatment of IHD. Current studies suggest that ES can affect the occurrence and development of IHD by promoting angiogenesis, regulating autophagy and apoptosis, inhibiting the inflammatory response and oxidative stress. In this review, we focus predominantly on the mechanism of ES and the current progress of ES therapy in IHD, furthermore, give a brief introduction to the forms of ES in clinical application.
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Affiliation(s)
- Ying Zhao
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Pengyu Wang
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Zhe Chen
- Department of Infectious Diseases, Beidahuang Group General Hospital, Harbin, China
| | - Manman Li
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Dengfeng Zhang
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
| | - Liming Yang
- Department of Pathophysiology, Harbin Medical University-Daqing, Daqing, China
| | - Hong Li
- Department of Pathophysiology, School of Basic Medical Sciences, Harbin Medical University, Harbin, China
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50
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Sanie-Jahromi F, Azizi A, Shariat S, Johari M. Effect of Electrical Stimulation on Ocular Cells: A Means for Improving Ocular Tissue Engineering and Treatments of Eye Diseases. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6548554. [PMID: 34840978 PMCID: PMC8612806 DOI: 10.1155/2021/6548554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/25/2021] [Accepted: 11/08/2021] [Indexed: 01/09/2023]
Abstract
Tissue engineering is biomedical engineering that uses suitable biochemical and physicochemical factors to assemble functional constructs that restore or improve damaged tissues. Recently, cell therapies as a subset of tissue engineering have been very promising in the treatment of ocular diseases. One of the most important biophysical factors to make this happen is noninvasive electrical stimulation (ES) to target ocular cells that may preserve vision in multiple retinal and optic nerve diseases. The science of cellular and biophysical interactions is very exciting in regenerative medicine now. Although the exact effect of ES on cells is unknown, multiple mechanisms are considered to underlie the effects of ES, including increased production of neurotrophic agents, improved cell migration, and inhibition of proinflammatory cytokines and cellular apoptosis. In this review, we highlighted the effects of ES on ocular cells, especially on the corneal, retinal, and optic nerve cells. Initially, we summarized the current literature on the in vitro and in vivo effects of ES on ocular cells and then we provided the clinical studies describing the effect of ES on ocular complications. For each area, we used some of the most impactful articles to show the important concepts and results that advanced the state of these interactions. We conclude with reflections on emerging new areas and perspectives for future development in this field.
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Affiliation(s)
- Fatemeh Sanie-Jahromi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Azizi
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Shariat
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammadkarim Johari
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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