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Hu X, Duan H, Zou D, Dong C, Wang Y, Wang Y, Li Z, Li Z. Acoustic vibration promotes in vitro expansion of human embryonic stem cells. AMERICAN JOURNAL OF STEM CELLS 2024; 13:143-151. [PMID: 39021373 PMCID: PMC11249672 DOI: 10.62347/pjfc2708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/06/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVES This study aimed to investigate the effect of acoustic vibration on the pluripotency of human embryonic stem cells (hESCs) and evaluate cell proliferation and self-renewal ability post-treatment. METHODS The human ES cell line H1 was used for the experiments. hESCs were treated with an acoustic vibration device. Their proliferative ability was subsequently detected using a colony formation assay, while the expression of pluripotency-related markers was detected via immunofluorescence staining. Finally, changes in gene expression levels were examined using quantitative polymerase chain reaction (qPCR) in the presence of appropriate primers. RESULTS Compared with normal cells in the control group, the morphology of experimental cells subjected to acoustic vibration did not significantly change. Contrastingly, the colony-forming efficiency of the experimental cells significantly increased. Immunofluorescence staining results showed the cells in experimental group were positive for the pluripotency markers NANOG, octamer-binding transcription factor 4 gene (OCT4), and SRY (sex determining region Y)-box 2 (SOX2). In addition, the expression levels of pluripotency genes NANOG, OCT4, SOX2, and Yes-associated protein (YAP)-related genes were up-regulated following acoustic vibration. CONCLUSIONS Our results revealed that acoustic vibration enhanced the proliferative ability of hESCs and increased the expression levels of NANOG, OCT4, SOX2, and YAP-related genes, indicating that acoustic vibration can optimize the self-renewal ability of hESCs and that the YAP signaling pathway may play a critical role in the functional process of acoustic vibration.
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Affiliation(s)
- Xiangyue Hu
- Shandong First Medical University (Shandong Academy of Medical Sciences)Jinan 250000, Shandong, China
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
| | - Haoyun Duan
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
| | - Dulei Zou
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
- Eye Institute of Shandong First Medical University, Eye Hospital of Shandong First Medical University (Shandong Eye Hospital)Jinan 250021, Shandong, China
| | - Chunxiao Dong
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
- Eye Institute of Shandong First Medical University, Eye Hospital of Shandong First Medical University (Shandong Eye Hospital)Jinan 250021, Shandong, China
| | - Yani Wang
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
| | - Yao Wang
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
| | - Zongren Li
- 970 Hospital of Chinese PLA Joint Logistic Support ForceWeihai 264200, Shandong, China
| | - Zongyi Li
- Shandong First Medical University (Shandong Academy of Medical Sciences)Jinan 250000, Shandong, China
- Eye Institute of Shandong First Medical University, State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of OphthalmologyQingdao 266071, Shandong, China
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di Summa PG, Di Marzio N, Jafari P, Jaconi ME, Nesic D. FastSkin ® Concept: A Novel Treatment for Complex Acute and Chronic Wound Management. J Clin Med 2023; 12:6564. [PMID: 37892702 PMCID: PMC10607178 DOI: 10.3390/jcm12206564] [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: 08/15/2023] [Revised: 09/26/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Successful treatments for acute and chronic skin wounds remain challenging. The goal of this proof-of-concept study was to assess the technical feasibility and safety of a novel wound treatment solution, FastSkin®, in a pig model. FastSkin® was prepared from skin micrografts patterned in blood using acoustic waves. Upon coagulation, the graft was transferred on a silicone sheet and placed on wounds. Six full-thickness wounds were created at the back of two pigs and treated with either FastSkin®, split-thickness skin graft (positive control), a gauze coverage (negative control, NC1), or blood patterned without micrografts (negative control, NC2). Silicone sheets were removed after 7, 14, and 21 days. Wound healing was monitored for six weeks and evaluated macroscopically for re-epithelialization and morphometrically for residual wound area and wound contraction. Tissue regeneration was assessed with histology after six weeks. Re-epithelialization was faster in wounds covered with FastSkin® treatments compared to NC2 and in NC2 compared to NC1. Importantly, an enhanced collagen organization was observed in FastSkin® in contrast to NC treatments. In summary, two clinically approved skin wound treatments, namely micrografting and blood clot graft, were successfully merged with sound-induced patterning of micrografts to produce an autologous, simple, and biologically active wound treatment concept.
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Affiliation(s)
- Pietro G. di Summa
- Department of Plastic and Hand Surgery, University Hospital of Lausanne (CHUV), University of Lausanne (UNIL), 1015 Lausanne, Switzerland;
| | - Nicola Di Marzio
- AO Research Institute Davos, 7270 Davos, Switzerland;
- Department of Health Sciences, Università del Piemonte Orientale (UPO), 28100 Novara, Italy
| | - Paris Jafari
- Center for Integrative Genomics, University of Lausanne, 1015 Lausanne, Switzerland;
| | - Marisa E. Jaconi
- Department of Basic Neurosciences, University of Geneva, 1211 Geneva, Switzerland;
| | - Dobrila Nesic
- Division of Fixed Prosthodontics and Biomaterials, University Clinic of Dental Medicine, University of Geneva, Rue Michel-Servet 1, 1211 Geneva, Switzerland
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Ambattu LA, Yeo LY. Sonomechanobiology: Vibrational stimulation of cells and its therapeutic implications. BIOPHYSICS REVIEWS 2023; 4:021301. [PMID: 38504927 PMCID: PMC10903386 DOI: 10.1063/5.0127122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/27/2023] [Indexed: 03/21/2024]
Abstract
All cells possess an innate ability to respond to a range of mechanical stimuli through their complex internal machinery. This comprises various mechanosensory elements that detect these mechanical cues and diverse cytoskeletal structures that transmit the force to different parts of the cell, where they are transcribed into complex transcriptomic and signaling events that determine their response and fate. In contrast to static (or steady) mechanostimuli primarily involving constant-force loading such as compression, tension, and shear (or forces applied at very low oscillatory frequencies (≤ 1 Hz) that essentially render their effects quasi-static), dynamic mechanostimuli comprising more complex vibrational forms (e.g., time-dependent, i.e., periodic, forcing) at higher frequencies are less well understood in comparison. We review the mechanotransductive processes associated with such acoustic forcing, typically at ultrasonic frequencies (> 20 kHz), and discuss the various applications that arise from the cellular responses that are generated, particularly for regenerative therapeutics, such as exosome biogenesis, stem cell differentiation, and endothelial barrier modulation. Finally, we offer perspectives on the possible existence of a universal mechanism that is common across all forms of acoustically driven mechanostimuli that underscores the central role of the cell membrane as the key effector, and calcium as the dominant second messenger, in the mechanotransduction process.
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Affiliation(s)
- Lizebona August Ambattu
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne VIC 3000, Australia
| | - Leslie Y. Yeo
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne VIC 3000, Australia
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Morphological and Functional Effects of Ultrasound on Blood-Brain Barrier Transitory Opening: An In Vitro Study on Rat Brain Endothelial Cells. Cells 2023; 12:cells12010192. [PMID: 36611987 PMCID: PMC9818236 DOI: 10.3390/cells12010192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/24/2022] [Accepted: 12/26/2022] [Indexed: 01/05/2023] Open
Abstract
With the recent advances in medicine, human life expectancy is increasing; however, the extra years of life are not necessarily spent in good health or free from disability, resulting in a significantly higher incidence of age-associated pathologies. Among these disorders, neurodegenerative diseases have a significant impact. To this end, the presence of the protective blood-brain barrier (BBB) represents a formidable obstacle to the delivery of therapeutics. Thus, this makes it imperative to define strategies to bypass the BBB in order to successfully target the brain with the appropriate drugs. It has been demonstrated that targeting the BBB by ultrasound (US) can transiently make this anatomical barrier permeable and in so doing, allow the delivery of therapeutics. Thus, our aim was to carry out an in depth in vitro molecular and morphological study on the effects of US treatment on the BBB. The rat brain endothelial (RBE4) cell line was challenged with exposure to 12 MHz diagnostic US treatment for 10, 20, and 30 min. Cell viability assays, Western blotting analysis on the endoplasmic reticulum (ER), and oxidative stress marker evaluation were then performed, along with cytological and immunofluorescence staining, in order to evaluate the effects of US on the intercellular spaces and tight junction distribution of the brain endothelial cells. We observed that the US treatment exerted no toxic effects on either RBE4 cell viability or the upregulation/dislocation of the ER and oxidative stress marker (GRP78 and cytochrome C, respectively). Further, we observed that the application of US induced an increase in the intercellular spaces, as shown by Papanicolaou staining, mainly due to the altered distribution of the tight junction protein zonula occludens-1 (ZO-1). This latter US-dependent effect was transient and disappeared 20 min after the removal of the stimulus. In conclusion, our results show that US induces a transient alteration of the BBB, without altering the intracellular signaling pathways such as the ER and oxidative stress that could potentially be toxic for endothelial cells. These results suggested that US treatment could represent a potential strategy for improving drug delivery to the brain.
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Weser R, Deng Z, Kondalkar VV, Darinskii AN, Cierpka C, Schmidt H, König J. Three-dimensional heating and patterning dynamics of particles in microscale acoustic tweezers. LAB ON A CHIP 2022; 22:2886-2901. [PMID: 35851398 DOI: 10.1039/d2lc00200k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Acoustic tweezers facilitate a noninvasive, contactless, and label-free method for the precise manipulation of micro objects, including biological cells. Although cells are exposed to mechanical and thermal stress, acoustic tweezers are usually considered as biocompatible. Here, we present a holistic experimental approach to reveal the correlation between acoustic fields, acoustophoretic motion and heating effects of particles induced by an acoustic tweezer setup. The system is based on surface acoustic waves and was characterized by applying laser Doppler vibrometry, astigmatism particle tracking velocimetry and luminescence lifetime imaging. In situ measurements with high spatial and temporal resolution reveal a three-dimensional particle patterning coinciding with the experimentally assisted numerical result of the acoustic radiation force distribution. In addition, a considerable and rapid heating up to 55 °C depending on specific parameters was observed. Although these temperatures may be harmful to living cells, counter-measures can be found as the time scales of patterning and heating are shown to be different.
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Affiliation(s)
- Robert Weser
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Zhichao Deng
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
| | - Vijay V Kondalkar
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Alexandre N Darinskii
- Institute of Crystallography FSRC "Crystallography and Photonics", Russian Academy of Sciences, Moscow, Russia
| | - Christian Cierpka
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
| | - Hagen Schmidt
- Leibniz Institute for Solid State and Materials Research Dresden, SAWLab Saxony, Dresden, Germany.
| | - Jörg König
- Institute of Thermodynamics and Fluid Mechanics, Technische Universität Ilmenau, Ilmenau, Germany.
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Figarol A, Olive L, Joubert O, Ferrari L, Rihn BH, Sarry F, Beyssen D. Biological Effects and Applications of Bulk and Surface Acoustic Waves on In Vitro Cultured Mammal Cells: New Insights. Biomedicines 2022; 10:biomedicines10051166. [PMID: 35625902 PMCID: PMC9139135 DOI: 10.3390/biomedicines10051166] [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: 04/14/2022] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023] Open
Abstract
Medical imaging has relied on ultrasound (US) as an exploratory method for decades. Nonetheless, in cell biology, the numerous US applications are mainly in the research and development phase. In this review, we report the main effects on human or mammal cells of US induced by bulk or surface acoustic waves (SAW). At low frequencies, bulk US can lead to cell death. Under specific intensities and exposure times, however, cell proliferation and migration can be enhanced through cytoskeleton fluidization (a reorganization of the actin filaments and microtubules). Cavitation phenomena, frequencies of resonance close to those of the biological compounds, and mechanical transfers of energy from the acoustic pressure could explain those biological outcomes. At higher frequencies, no cavitation is observed. However, USs of high frequency stimulate ionic channels and increase cell permeability and transfection potency. Surface acoustic waves are increasingly exploited in microfluidics, especially for precise cell manipulations and cell sorting. With applications in diagnosis, infection, cancer treatment, or wound healing, US has remarkable potential. More mechanotransduction studies would be beneficial to understand the distinct roles of temperature rise, acoustic streaming and mechanical and electrical stimuli in the field.
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Affiliation(s)
- Agathe Figarol
- Institut FEMTO-ST, UMR CNRS 6174, Université de Bourgogne Franche-Comté, F-25030 Besançon, France;
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Lucile Olive
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Olivier Joubert
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Luc Ferrari
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Bertrand H. Rihn
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Frédéric Sarry
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
| | - Denis Beyssen
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (L.O.); (O.J.); (L.F.); (B.H.R.); (F.S.)
- Correspondence: ; Tel.: +33-61-448-6182
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Mazalan MB, Noor AM, Wahab Y, Yahud S, Zaman WSWK. Current Development in Interdigital Transducer (IDT) Surface Acoustic Wave Devices for Live Cell In Vitro Studies: A Review. MICROMACHINES 2021; 13:mi13010030. [PMID: 35056195 PMCID: PMC8779155 DOI: 10.3390/mi13010030] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023]
Abstract
Acoustics have a wide range of uses, from noise-cancelling to ultrasonic imaging. There has been a surge in interest in developing acoustic-based approaches for biological and biomedical applications in the last decade. This review focused on the application of surface acoustic waves (SAW) based on interdigital transducers (IDT) for live-cell investigations, such as cell manipulation, cell separation, cell seeding, cell migration, cell characteristics, and cell behaviours. The approach is also known as acoustofluidic, because the SAW device is coupled with a microfluidic system that contains live cells. This article provides an overview of several forms of IDT of SAW devices on recently used cells. Conclusively, a brief viewpoint and overview of the future application of SAW techniques in live-cell investigations were presented.
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Affiliation(s)
- Mazlee Bin Mazalan
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
- Correspondence: (M.B.M.); (W.S.W.K.Z.)
| | - Anas Mohd Noor
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Yufridin Wahab
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Shuhaida Yahud
- AMBIENCE, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis, Arau 02600, Perlis, Malaysia; (A.M.N.); (Y.W.); (S.Y.)
| | - Wan Safwani Wan Kamarul Zaman
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Selangor, Malaysia
- Correspondence: (M.B.M.); (W.S.W.K.Z.)
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