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Karatum O, Han M, Erdogan ET, Karamursel S, Nizamoglu S. Physical mechanisms of emerging neuromodulation modalities. J Neural Eng 2023; 20:031001. [PMID: 37224804 DOI: 10.1088/1741-2552/acd870] [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: 11/16/2022] [Accepted: 05/24/2023] [Indexed: 05/26/2023]
Abstract
One of the ultimate goals of neurostimulation field is to design materials, devices and systems that can simultaneously achieve safe, effective and tether-free operation. For that, understanding the working mechanisms and potential applicability of neurostimulation techniques is important to develop noninvasive, enhanced, and multi-modal control of neural activity. Here, we review direct and transduction-based neurostimulation techniques by discussing their interaction mechanisms with neurons via electrical, mechanical, and thermal means. We show how each technique targets modulation of specific ion channels (e.g. voltage-gated, mechanosensitive, heat-sensitive) by exploiting fundamental wave properties (e.g. interference) or engineering nanomaterial-based systems for efficient energy transduction. Overall, our review provides a detailed mechanistic understanding of neurostimulation techniques together with their applications toin vitro, in vivo, and translational studies to guide the researchers toward developing more advanced systems in terms of noninvasiveness, spatiotemporal resolution, and clinical applicability.
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Affiliation(s)
- Onuralp Karatum
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
| | - Mertcan Han
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
| | - Ezgi Tuna Erdogan
- Department of Physiology, Koc University School of Medicine, Istanbul 34450, Turkey
| | - Sacit Karamursel
- Department of Physiology, Koc University School of Medicine, Istanbul 34450, Turkey
| | - Sedat Nizamoglu
- Department of Electrical and Electronics Engineering, Koc University, Istanbul 34450, Turkey
- Department of Biomedical Science and Engineering, Koc University, Istanbul 34450, Turkey
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2
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Ciocca M, Marcozzi S, Mariani P, Lacconi V, Di Carlo A, Cinà L, Rosato-Siri MD, Zanon A, Cattelan G, Avancini E, Lugli P, Priya S, Camaioni A, Brown TM. A Polymer Bio–Photoelectrolytic Platform for Electrical Signal Measurement and for Light Modulation of Ion Fluxes and Proliferation in a Neuroblastoma Cell Line. ADVANCED NANOBIOMED RESEARCH 2023. [DOI: 10.1002/anbr.202200127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Manuela Ciocca
- Department of Electronic Engineering University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy
- Faculty of Science and Technology Free University of Bozen-Bolzano Piazza Università 1 39100 Bolzano Italy
| | - Serena Marcozzi
- Department of Biomedicine and Prevention University of Rome Tor Vergata Via Montpellier 1 00133 Rome Italy
| | - Paolo Mariani
- Department of Electronic Engineering University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy
| | - Valentina Lacconi
- Department of Biomedicine and Prevention University of Rome Tor Vergata Via Montpellier 1 00133 Rome Italy
| | - Aldo Di Carlo
- Istituto di Struttura della Materia CNR-ISM via Fosso del Cavaliere 100 00133 Rome Italy
| | - Lucio Cinà
- Cicci Research srl., Via Giordania 227 58100 Grosseto Italy
| | - Marcelo D. Rosato-Siri
- Institute for Biomedicine, Eurac Research Affiliated Institute of the University of Lübeck 39100 Bolzano Italy
| | - Alessandra Zanon
- Institute for Biomedicine, Eurac Research Affiliated Institute of the University of Lübeck 39100 Bolzano Italy
| | - Giada Cattelan
- Institute for Biomedicine, Eurac Research Affiliated Institute of the University of Lübeck 39100 Bolzano Italy
| | - Enrico Avancini
- Faculty of Science and Technology Free University of Bozen-Bolzano Piazza Università 1 39100 Bolzano Italy
| | - Paolo Lugli
- Faculty of Science and Technology Free University of Bozen-Bolzano Piazza Università 1 39100 Bolzano Italy
| | - Shashank Priya
- Department of Materials Science and Engineering Pennsylvania State University University Park PA 16802 USA
| | - Antonella Camaioni
- Department of Biomedicine and Prevention University of Rome Tor Vergata Via Montpellier 1 00133 Rome Italy
| | - Thomas M. Brown
- Department of Electronic Engineering University of Rome Tor Vergata Via del Politecnico 1 00133 Rome Italy
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3
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Onorato G, Fardella F, Lewinska A, Gobbo F, Tommasini G, Wnuk M, Tino A, Moros M, Antognazza MR, Tortiglione C. Optical Control of Tissue Regeneration through Photostimulation of Organic Semiconducting Nanoparticles. Adv Healthc Mater 2022; 11:e2200366. [PMID: 35861262 DOI: 10.1002/adhm.202200366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 07/04/2022] [Indexed: 01/27/2023]
Abstract
Next generation bioengineering strives to identify crucial cues that trigger regeneration of damaged tissues, and to control the cells that execute these programs with biomaterials and devices. Molecular and biophysical mechanisms driving embryogenesis may inspire novel tools to reactivate developmental programs in situ. Here nanoparticles based on conjugated polymers are employed for optical control of regenerating tissues by using an animal with unlimited regenerative potential, the polyp Hydra, as in vivo model, and human keratinocytes as an in vitro model to investigate skin repair. By integrating animal, cellular, molecular, and biochemical approaches, nanoparticles based on poly-3-hexylthiophene (P3HT) are shown able to enhance regeneration kinetics, stem cell proliferation, and biomolecule oxidation levels. Opposite outputs are obtained with PCPDTBT-NPs (Poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b'] dithiophene)-alt-4,7(2,1,3-benzothiadiazole)], causing a beneficial effect on Hydra regeneration but not on the migratory capability of keratinocytes. These results suggest that the artificial modulation of the redox potential in injured tissues may represent a powerful modality to control their regenerative potential. Importantly, the possibility to fine-tuning materials' photocatalytic efficiency may enable a biphasic modulation over a wide dynamic range, which can be exploited to augment the tissue regenerative capacity or inhibit the unlimited potential of cancerous cells in pathological contexts.
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Affiliation(s)
- Giada Onorato
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, Pozzuoli, 80078, Italy.,Institute of Biosciences and Bioresources, National Research Council, Via Pietro Castellino 111, Napoli, Italy
| | - Federica Fardella
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, Pozzuoli, 80078, Italy.,Instituto de Nanociencia y Materiales de Aragón, C/Mariano Esquillor 15, Zaragoza, 50018, Spain
| | - Anna Lewinska
- Department of Biotechnology, Institute of Biology and Biotechnology, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, Rzeszow, 35-310, Poland
| | - Federico Gobbo
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, Milano, 20133, Italy.,Politecnico di Milano, Dip. di Fisica, P.zza L. Da Vinci 32, Milano, 20133, Italy
| | - Giuseppina Tommasini
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, Pozzuoli, 80078, Italy.,Instituto de Nanociencia y Materiales de Aragón, C/Mariano Esquillor 15, Zaragoza, 50018, Spain
| | - Maciej Wnuk
- Department of Biology, Faculty of Biotechnology, University of Rzeszow, Pigonia 1, Rzeszow, 35-310, Poland
| | - Angela Tino
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, Pozzuoli, 80078, Italy
| | - Maria Moros
- Instituto de Nanociencia y Materiales de Aragón, C/Mariano Esquillor 15, Zaragoza, 50018, Spain
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, Milano, 20133, Italy
| | - Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello", Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, Pozzuoli, 80078, Italy
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4
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Abdel Aziz I, Maver L, Giannasi C, Niada S, Brini AT, Antognazza MR. Polythiophene-mediated light modulation of membrane potential and calcium signalling in human adipose-derived stem/stromal cells. JOURNAL OF MATERIALS CHEMISTRY. C 2022; 10:9823-9833. [PMID: 36277082 PMCID: PMC9487879 DOI: 10.1039/d2tc01426b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 06/05/2022] [Indexed: 06/16/2023]
Abstract
Recent progress in the fields of regenerative medicine and tissue engineering has been strongly fostered both by the investigation of crucial cues, able to trigger the regeneration of damaged tissues, and by the development of ad hoc functional materials, capable of selectively (re-)activating relevant physiological pathways. In parallel to the successful realization of biochemical cues and the optimization of delivery protocols, the use of biophysical stimuli has been emerging as an alternative, highly effective strategy. Techniques based on electrical, magnetic and mechanical stimulation have been reported to efficiently direct differentiation of stem cells and modulate cell physiology at different developmental stages. In this framework, the use of optical stimulation represents a valuable approach, possibly overcoming current limitations of chemical cues, like limited spatial and temporal resolution and poor control over the extracellular environment. Surprisingly, the effects of light on the physiological properties (light toxicity, cell membrane potential, and cell ionic trafficking) of undifferentiated cells, as well as on their differentiation pathways, were investigated to a very limited extent and rarely quantified in a systematic way. In this work, we aim at clarifying the effects of optical excitation on the physiological behaviour of undifferentiated human adipose-derived stem cells (hASC), cultured on top of a light-sensitive conjugated polymer, region-regular poly-3-hexyl-thiophene (P3HT). Interestingly, we observe statistically significant modulation of the cell membrane potential, as well as noticeable effects on intracellular calcium signalling, triggered by P3HT excitation upon green light stimuli. Possible mechanisms involved in the signal transduction pathways are considered and critically discussed. The capability to modulate the physiological response of hASC upon photoexcitation, in a highly controlled and selective manner, provides a promptly available and non invasive diagnostic tool, thus contributing to the understanding of the complex machinery behind stem cells and material interfaces. Moreover, it may open the route to novel techniques to drive the differentiation path with unprecedented versatility and operational easiness.
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Affiliation(s)
- Ilaria Abdel Aziz
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3 20133 Milano Italy
- Politecnico di Milano, Dip.to di Fisica, P.zza L. da Vinci 32 20133 Milano Italy
| | - Leonardo Maver
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3 20133 Milano Italy
- Politecnico di Milano, Dip.to di Fisica, P.zza L. da Vinci 32 20133 Milano Italy
| | - Chiara Giannasi
- University of Milan, Department of Biomedical, Surgical and Dental Sciences, Via Vanvitelli 32 20129 Milano Italy
- IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4 20161 Milano Italy
| | - Stefania Niada
- IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4 20161 Milano Italy
| | - Anna T Brini
- University of Milan, Department of Biomedical, Surgical and Dental Sciences, Via Vanvitelli 32 20129 Milano Italy
- IRCCS Istituto Ortopedico Galeazzi, Via Galeazzi 4 20161 Milano Italy
| | - Maria Rosa Antognazza
- Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, via Giovanni Pascoli 70/3 20133 Milano Italy
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5
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Cong L, Gao Z, Zheng Y, Ye T, Wang Z, Wang P, Li M, Dong B, Yang W, Li Q, Qiao S, Wang C, Shen Y, Li H, Tian W, Yang L. Electrical stimulation inhibits Val-boroPro-induced pyroptosis in THP-1 macrophages via sirtuin3 activation to promote autophagy and inhibit ROS generation. Aging (Albany NY) 2020; 12:6415-6435. [PMID: 32289749 PMCID: PMC7185124 DOI: 10.18632/aging.103038] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/04/2020] [Indexed: 12/19/2022]
Abstract
The incidence of atherosclerosis (AS), a major contributor to cardiovascular disease, is steadily rising along with an increasingly older population worldwide. Pyroptosis, a form of inflammatory programmed cell death, determines the release of pro-inflammatory mediators by endothelial cells, smooth muscle cells, and atheroma-associated macrophages and foam cells, thereby playing a critical role in AS progression. Canonical pyroptosis is mediated by inflammasome formation, activation of caspase-1, and maturation and release of proinflammatory cytokines. Electrical stimulation (ES) is a noninvasive, safe therapy that has been shown to alleviate symptoms in several health conditions. Here, we investigated the anti-inflammatory and anti-pyroptotic effects of ES in human THP-1 macrophages treated with the dipeptidyl peptidase inhibitor Val-boroPro (VbP). We found that ES downregulated NOD-like receptor family protein 3 (NLRP3) inflammasome, ASC, and caspase-1 expression and abrogated the release of Interleukin-1β (IL-1β) and Interleukin-18 (IL-18), indicating effective pyroptosis inhibition. These changes were paralleled by a reduction in reactive oxygen species (ROS) production, reversal of VbP-induced sirtuin3 (Sirt3) downregulation, deacetylation of ATG5, and induction of autophagy. These findings suggest that ES may be a viable strategy to counteract pyroptosis-mediated inflammation in AS by raising Sirt3 to promote autophagy and inhibit ROS generation.
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Affiliation(s)
- Lin Cong
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Ziyu Gao
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Yinghong Zheng
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Ting Ye
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Zitong Wang
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Pengyu Wang
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Manman Li
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Bowen Dong
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Wei Yang
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Quanfeng Li
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Shupei Qiao
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Cao Wang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Yijun Shen
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Hong Li
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China
| | - Weiming Tian
- School of Life Science and Technology, Harbin Institute of Technology, Harbin 150006, China
| | - Liming Yang
- Department of Pathophysiology, Basic Medical Science, Harbin Medical University, Harbin 150081, China.,State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Beijing 100037, China
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Mokni M, Pedroli F, D’Ambrogio G, Le MQ, Cottinet PJ, Capsal JF. High-Capacity, Fast-Response, and Photocapacitor-Based Terpolymer Phosphor Composite. Polymers (Basel) 2020; 12:polym12020349. [PMID: 32041111 PMCID: PMC7077481 DOI: 10.3390/polym12020349] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/28/2022] Open
Abstract
This paper describes a new class of light transducer-based poly (vinylidene fluoride-trifluoroethylene-chlorotrifluoroethylene) (P(VDF-TrFE-CTFE)) terpolymer doped with 50% wt. phosphor particles that enables to efficiently transform light energy into an electrical signal. Broadband dielectric characterization together with experimental results on photo-electric conversion demonstrated high capacitance variation of the proposed composite under light exposure, confirming promising potential of our sensor device for application in retinal prostheses where the converted electrical signal can affect the biological activity of the neuron system. In addition to the benefit of being light-weight, having ultra-flexibility, and used in a simple process, the proposed photodetector composite leads to fast response and high sensibility in terms of photoelectrical coupling where significant increases in capacitance change of 78% and 25% have been recorded under blue and green light sources, respectively. These results demonstrated high-performance material design where phosphor filler contributes to promote charge-discharge efficiency as well as reduced dielectric loss in P(VDF-TrFE-CTFE), which facilitate the composite for flexible light transducer applications, especially in the medical environment.
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