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Yi Y, Song J, Zhou P, Shu Y, Liang P, Liang H, Liu Y, Yuan X, Shan X, Wu X. An ultrasound-triggered injectable sodium alginate scaffold loaded with electrospun microspheres for on-demand drug delivery to accelerate bone defect regeneration. Carbohydr Polym 2024; 334:122039. [PMID: 38553236 DOI: 10.1016/j.carbpol.2024.122039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/02/2024] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
Biological processes, such as bone defects healing are precisely controlled in both time and space. This spatiotemporal characteristic inspires novel therapeutic strategies. The sustained-release systems including hydrogels are commonly utilized in the treatment of bone defect; however, traditional hydrogels often release drugs at a consistent rate, lacking temporal precision. In this study, a hybrid hydrogel has been developed by using sodium alginate, sucrose acetate isobutyrate, and electrospray microspheres as the base materials, and designed with ultrasound response, and on-demand release properties. Sucrose acetate isobutyrate was added to the hybrid hydrogel to prevent burst release. The network structure of the hybrid hydrogel is formed by the interconnection of Ca2+ with the carboxyl groups of sodium alginate. Notably, when the hybrid hydrogel is exposed to ultrasound, the ionic bond can be broken to promote drug release; when ultrasound is turned off, the release returned to a low-release state. This hybrid hydrogel reveals not only injectability, degradability, and good mechanical properties but also shows multiple responses to ultrasound. And it has good biocompatibility and promotes osteogenesis efficiency in vivo. Thus, this hybrid hydrogel provides a promising therapeutic strategy for the treatment of bone defects.
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Affiliation(s)
- Yin Yi
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Jinlin Song
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Pengfei Zhou
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Yu Shu
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Panpan Liang
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Huimin Liang
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Yanling Liu
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xiaoyan Yuan
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xujia Shan
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xiaohong Wu
- Stomatological Hospital of Chongqing Medical University, No. 426, Songshibei Road, Yubei District, Chongqing 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China.
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Lysak A, Farnebo S, Geuna S, Dahlin LB. Muscle preservation in proximal nerve injuries: a current update. J Hand Surg Eur Vol 2024; 49:773-782. [PMID: 38819009 DOI: 10.1177/17531934231216646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Optimal recovery of muscle function after proximal nerve injuries remains a complex and challenging problem. After a nerve injury, alterations in the affected muscles lead to atrophy, and later degeneration and replacement by fat-fibrous tissues. At present, several different strategies for the preservation of skeletal muscle have been reported, including various sets of physical exercises, muscle massage, physical methods (e.g. electrical stimulation, magnetic field and laser stimulation, low-intensity pulsed ultrasound), medicines (e.g. nutrients, natural and chemical agents, anti-inflammatory and antioxidants, hormones, enzymes and enzyme inhibitors), regenerative medicine (e.g. growth factors, stem cells and microbiota) and surgical procedures (e.g. supercharge end-to-side neurotization). The present review will focus on methods that aimed to minimize the damage to muscles after denervation based on our present knowledge.
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Affiliation(s)
- Andrii Lysak
- Institute of Traumatology and Orthopedics of National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine
| | - Simon Farnebo
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Department of Hand Surgery, Plastic Surgery and Burns, Linköping University Hospital, Linköping, Sweden
| | - Stefano Geuna
- Department of Clinical and Biological Sciences; Neuroscience Institute Cavalieri Ottolenghi, University of Torino, Torino, Italy
| | - Lars B Dahlin
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
- Department of Translational Medicine - Hand Surgery, Lund University, Malmö, Sweden
- Department of Hand Surgery, Skåne University Hospital, Malmö, Sweden
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Zhou J, Ning E, Lu L, Zhang H, Yang X, Hao Y. Effectiveness of low-intensity pulsed ultrasound on osteoarthritis: molecular mechanism and tissue engineering. Front Med (Lausanne) 2024; 11:1292473. [PMID: 38695024 PMCID: PMC11061361 DOI: 10.3389/fmed.2024.1292473] [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: 12/19/2023] [Accepted: 04/05/2024] [Indexed: 05/04/2024] Open
Abstract
Osteoarthritis (OA) is distinguished by pathological alterations in the synovial membrane, articular cartilage, and subchondral bone, resulting in physical symptoms such as pain, deformity, and impaired mobility. Numerous research studies have validated the effectiveness of low-intensity pulsed ultrasound (LIPUS) in OA treatment. The periodic mechanical waves generated by LIPUS can mitigate cellular ischemia and hypoxia, induce vibration and collision, produce notable thermal and non-thermal effects, alter cellular metabolism, expedite tissue repair, improve nutrient delivery, and accelerate the healing process of damaged tissues. The efficacy and specific mechanism of LIPUS is currently under investigation. This review provides an overview of LIPUS's potential role in the treatment of OA, considering various perspectives such as the synovial membrane, cartilage, subchondral bone, and tissue engineering. It aims to facilitate interdisciplinary scientific research and further exploration of LIPUS as a complementary technique to existing methods or surgery. Ongoing research is focused on determining the optimal dosage, frequency, timing, and treatment strategy of LIPUS for OA. Additional research is required to clarify the precise mechanism of action and potential impacts on cellular, animal, and human systems prior to its integration into therapeutic applications.
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Affiliation(s)
- Jing Zhou
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
| | - Eryu Ning
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
| | - Lingfeng Lu
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
| | - Huili Zhang
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
| | - Xing Yang
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
| | - Yuefeng Hao
- Orthopedics and Sports Medicine Center, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
- Gusu School, Nanjing Medical University, Suzhou, China
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Wang Y, Cao X, Shen Y, Zhong Q, Wu Z, Wu Y, Weng W, Xu C. Evaluate the effects of low-intensity pulsed ultrasound on dental implant osseointegration under type II diabetes. Front Bioeng Biotechnol 2024; 12:1356412. [PMID: 38371421 PMCID: PMC10869464 DOI: 10.3389/fbioe.2024.1356412] [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: 12/15/2023] [Accepted: 01/19/2024] [Indexed: 02/20/2024] Open
Abstract
Objective: The objective of this study is to assess the impact of low-intensity pulsed ultrasound (LIPUS) therapy on the peri-implant osteogenesis in a Type II diabetes mellitus (T2DM) rat model. Methods: A total of twenty male Sprague-Dawley (SD) rats were randomly allocated into four groups: Control group, T2DM group, Control-LIPUS group, and T2DM-LIPUS group. Implants were placed at the rats' bilateral maxillary first molar sites. The LIPUS treatment was carried out on the rats in Control-LIPUS group and T2DM-LIPUS group, immediately after the placement of the implants, over three consecutive weeks. Three weeks after implantation, the rats' maxillae were extracted for micro-CT, removal torque value (RTV), and histologic analysis. Results: Micro-CT analysis showed that T2DM rats experienced more bone loss around implant cervical margins compared with the non-T2DM rats, while the LIPUS treated T2DM rats showed similar bone heights to the non-T2DM rats. Bone-implant contact ratio (BIC) were lower in T2DM rats but significantly improved in the LIPUS treated T2DM rats. Bone formation parameters including bone volume fraction (BV/TV), trabecular thickness (Tb.Th), bone mineral density (BMD) and RTV were all positively influenced by LIPUS treatment. Histological staining further confirmed LIPUS's positive effects on peri-implant new bone formation in T2DM rats. Conclusion: As an effective and safe treatment in promoting osteogenesis, LIPUS has a great potential for T2DM patients to attain improved peri-implant osteogenesis. To confirm its clinical efficacy and to explore the underlying mechanism, further prospective cohort studies or randomized controlled trials are needed in the future.
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Affiliation(s)
- Yingying Wang
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ximeng Cao
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yingyi Shen
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Qi Zhong
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ziang Wu
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Yaqin Wu
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Weimin Weng
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
| | - Chun Xu
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology and National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, China
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Moradi Kashkooli F, Hornsby TK, Kolios MC, Tavakkoli JJ. Ultrasound-mediated nano-sized drug delivery systems for cancer treatment: Multi-scale and multi-physics computational modeling. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1913. [PMID: 37475577 DOI: 10.1002/wnan.1913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/18/2023] [Accepted: 05/30/2023] [Indexed: 07/22/2023]
Abstract
Computational modeling enables researchers to study and understand various complex biological phenomena in anticancer drug delivery systems (DDSs), especially nano-sized DDSs (NSDDSs). The combination of NSDDSs and therapeutic ultrasound (TUS), that is, focused ultrasound and low-intensity pulsed ultrasound, has made significant progress in recent years, opening many opportunities for cancer treatment. Multiple parameters require tuning and optimization to develop effective DDSs, such as NSDDSs, in which mathematical modeling can prove advantageous. In silico computational modeling of ultrasound-responsive DDS typically involves a complex framework of acoustic interactions, heat transfer, drug release from nanoparticles, fluid flow, mass transport, and pharmacodynamic governing equations. Owing to the rapid development of computational tools, modeling the different phenomena in multi-scale complex problems involved in drug delivery to tumors has become possible. In the present study, we present an in-depth review of recent advances in the mathematical modeling of TUS-mediated DDSs for cancer treatment. A detailed discussion is also provided on applying these computational models to improve the clinical translation for applications in cancer treatment. This article is categorized under: Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
| | - Tyler K Hornsby
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Michael C Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Jahangir Jahan Tavakkoli
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
- Institute for Biomedical Engineering, Science and Technology (iBEST), Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
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Ye X, Wang Z, van Bruggen R, Li XM, Zhang Y, Chen J. Low-intensity pulsed ultrasound enhances neurite growth in serum-starved human neuroblastoma cells. Front Neurosci 2023; 17:1269267. [PMID: 38053610 PMCID: PMC10694225 DOI: 10.3389/fnins.2023.1269267] [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] [Received: 07/29/2023] [Accepted: 10/30/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction Low-intensity pulsed ultrasound (LIPUS) is a recognized tool for promoting nerve regeneration and repair; however, the intracellular mechanisms of LIPUS stimulation remain underexplored. Method The present study delves into the effects of varying LIPUS parameters, namely duty cycle, spatial average-temporal average (SATA) intensity, and ultrasound amplitude, on the therapeutic efficacy using SK-N-SH cells cultured in serum-starved conditions. Four distinct LIPUS settings were employed: (A) 50 mW/cm2, 40%, (B) 25 mW/cm2, 10%, (C) 50 mW/cm2, 20%, and (D) 25 mW/cm2, 10%. Results Immunochemistry analysis exhibited neurite outgrowth promotion in all LIPUS-treated groups except for Group D. Further, LIPUS treatment was found to successfully promote brain-derived neurotrophic factor (BDNF) expression and enhance the phosphorylation of extracellular signal-regulated kinase (ERK)1/2, protein kinase B (Akt), and mammalian target of rapamycin (mTOR) signaling pathways, as evidenced by western blot analysis. Discussion The study suggests that the parameter combination of LIPUS determines the therapeutic efficacy of LIPUS. Future investigations should aim to optimize these parameters for different cell types and settings and delve deeper into the cellular response mechanism to LIPUS treatment. Such advancements may aid in tailoring LIPUS treatment strategies to specific therapeutic needs.
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Affiliation(s)
- Xuanjie Ye
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada
| | - Zitong Wang
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Rebekah van Bruggen
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Xin-Min Li
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Yanbo Zhang
- Department of Psychiatry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada
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Zheng X, Gao Z, Pan Y, Zhang S, Chen R. The exact phenomenon and early signaling events of the endothelial cytoskeleton response to ultrasound. Biochem Biophys Res Commun 2023; 681:144-151. [PMID: 37774572 DOI: 10.1016/j.bbrc.2023.09.046] [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: 06/07/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 10/01/2023]
Abstract
Low-intensity ultrasound can be applied for medical imaging and disease treatment in clinical and experimental studies. However, the biological effects of ultrasound on blood vessels, especially endothelial cells (ECs) are still unclear. In this study, the laws of endothelial cytoskeleton changes under ultrasound induction are investigated. ECs are exposed to low-intensity ultrasound, and the cytoskeletal morphology is analyzed by a filamentous (F)-actin staining technique. We further analyze the characteristics of cytoskeleton rupture using indirect immunofluorescence techniques and cytoskeleton electron microscopy. Finally, the biological effects induced by ultrasound at the tissue level are investigated in an ex vivo blood-vessel model. Significant changes in cytoskeletal structure are detected when induced by ultrasound, including cytoskeletal rupture, blebbing and apoptosis. Moreover, a temporal threshold of ECs injury under different ultrasonic intensities is established. This study illustrates a pattern of significant changes in the cytoskeletal structure of ECs induced by ultrasound. The finding serves as a guide for selecting a safe threshold for clinical ultrasound applications.
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Affiliation(s)
- Xiaobing Zheng
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
| | - Zujie Gao
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yunfan Pan
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Shuguang Zhang
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
| | - Ruiqing Chen
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, 100084, China
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Kim H, Choi Y, Kim SY, Pahk KJ. Increased intracellular diffusivity of macromolecules within a mammalian cell by low-intensity pulsed ultrasound. ULTRASONICS SONOCHEMISTRY 2023; 100:106644. [PMID: 37844347 PMCID: PMC10587770 DOI: 10.1016/j.ultsonch.2023.106644] [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: 07/21/2023] [Revised: 10/05/2023] [Accepted: 10/07/2023] [Indexed: 10/18/2023]
Abstract
Whilst a number of studies have demonstrated that low-intensity pulsed ultrasound (LIPUS) is a promising therapeutic ultrasound technique that can be used for delivering mild mechanical stimuli to target tissue non-invasively, the underlying biophysical mechanisms still remain unclear. Most mechanism studies have focused explicitly on the effects of LIPUS on the cell membrane and mechanosensitive receptors. In the present study, we propose an additional mechanism by which LIPUS propagation through living cells may directly impact intracellular dynamics, particularly the diffusion transport of biomolecules. To support our hypothesis, human epithelial-like cells (SaOS-2 and HeLa) seeded on a confocal dish placed on a microscope stage were exposed to LIPUS with various exposure conditions (ultrasound frequencies of 0.5, 1 and 3 MHz, peak acoustic pressure of 200 and 400 kPa, a pulse repetition frequency of 1 kHz and a 20 % duty cycle), and the diffusivities of various sizes of biomolecules in the cytoplasm area were measured using fluorescence recovery after photobleaching (FRAP). Furthermore, giant unilamellar vesicles (GUVs) filled with macromolecules were used to examine the physical causal relationship between LIPUS and molecular diffusion changes. Nucleocytoplasmic transport coefficients were also measured by modified FRAP that bleaches the whole cell nuclear region. Extracellular signal-regulated kinases (ERK) activity (the phosphorylation dynamics) was monitored using fluorescence resonance energy transfer (FRET) microscopy. All the measurements were taken during, before and after the LIPUS exposure. Our experimental results clearly showed that the diffusion coefficients of macromolecules within the cell increased with acoustic pressure by 12.1 to 33.5 % during the sonication, and the increments were proportional to their molecular sizes regardless of the ultrasound frequency used. This observation in living cells was consistent with the GUVs exposed to the LIPUS, which indicated that the diffusivity increase was a passive physical response to the acoustic energy of LIPUS. Under the 1 MHz LIPUS exposure with 400 kPa, the passive nucleocytoplasmic transport of enhanced green fluorescent protein (EGFP) was accelerated by 21.4 %. With the same LIPUS exposure condition, both the diffusivity and phosphorylation of ERK induced by EGF treatment were significantly elevated simultaneously, which implied that LIPUS could also modify the kinase kinetics in the signal transduction process. Taken together, this study is the first attempt to uncover the physical link between LIPUS and the dynamics of intracellular macromolecules and related biological processes that LIPUS can possibly increase the diffusivity of intracellular macromolecules, leading to the changes in the basic cellular processes: passive nucleocytoplasmic transport and ERK. Our findings can provide a novel perspective that the mechanotransduction process that the intracellular region, in addition to the cell membrane, can convert the acoustic stimuli of LIPUS to biochemical signals.
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Affiliation(s)
- Hyojun Kim
- LAAS-CNRS, University of Toulouse, CNRS, Toulouse, France
| | - Yeonho Choi
- Department of Bioengineering, Korea University, Seoul, Republic of Korea
| | - So Yeon Kim
- Chemical and Biological Integrative Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Seoul, Republic of Korea; Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea.
| | - Ki Joo Pahk
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea.
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Vinikoor T, Dzidotor GK, Le TT, Liu Y, Kan HM, Barui S, Chorsi MT, Curry EJ, Reinhardt E, Wang H, Singh P, Merriman MA, D'Orio E, Park J, Xiao S, Chapman JH, Lin F, Truong CS, Prasadh S, Chuba L, Killoh S, Lee SW, Wu Q, Chidambaram RM, Lo KWH, Laurencin CT, Nguyen TD. Injectable and biodegradable piezoelectric hydrogel for osteoarthritis treatment. Nat Commun 2023; 14:6257. [PMID: 37802985 PMCID: PMC10558537 DOI: 10.1038/s41467-023-41594-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 09/11/2023] [Indexed: 10/08/2023] Open
Abstract
Osteoarthritis affects millions of people worldwide but current treatments using analgesics or anti-inflammatory drugs only alleviate symptoms of this disease. Here, we present an injectable, biodegradable piezoelectric hydrogel, made of short electrospun poly-L-lactic acid nanofibers embedded inside a collagen matrix, which can be injected into the joints and self-produce localized electrical cues under ultrasound activation to drive cartilage healing. In vitro, data shows that the piezoelectric hydrogel with ultrasound can enhance cell migration and induce stem cells to secrete TGF-β1, which promotes chondrogenesis. In vivo, the rabbits with osteochondral critical-size defects receiving the ultrasound-activated piezoelectric hydrogel show increased subchondral bone formation, improved hyaline-cartilage structure, and good mechanical properties, close to healthy native cartilage. This piezoelectric hydrogel is not only useful for cartilage healing but also potentially applicable to other tissue regeneration, offering a significant impact on the field of regenerative tissue engineering.
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Affiliation(s)
- Tra Vinikoor
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Godwin K Dzidotor
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
- Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Thinh T Le
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Yang Liu
- Center of Digital Dentistry/Department of Prosthodontics/Central Laboratory, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & NHC Research Center of Engineering and Technology for Computerized Dentistry & NMPA Key Laboratory for Dental Materials, Beijing, 100081, PR China
| | - Ho-Man Kan
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Srimanta Barui
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Meysam T Chorsi
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Eli J Curry
- Eli Lilly and Company, 450 Kendall Street, Cambridge, MA, 02142, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Emily Reinhardt
- Department of Pathobiology and Veterinary Science, University of Connecticut, 61 North Eagleville Road, Unit 3089, Storrs, CT, 06269, USA
| | - Hanzhang Wang
- Pathology and Laboratory Medicine, University of Connecticut Health Center, 63 Farmington Avenue, Farmington, CT, 06030, USA
| | - Parbeen Singh
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Marc A Merriman
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
- Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Ethan D'Orio
- Department of Advanced Manufacturing for Energy Systems Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Jinyoung Park
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Shuyang Xiao
- Department of Materials Science and Engineering & Institute of Materials Science, University of Connecticut, 25 King Hill Road, Unit 3136, Storrs, CT, 06269-3136, USA
| | - James H Chapman
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
| | - Feng Lin
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Cao-Sang Truong
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Somasundaram Prasadh
- Center for Clean Energy Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Lisa Chuba
- Center for Comparative Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Shaelyn Killoh
- Center for Comparative Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Seok-Woo Lee
- Department of Materials Science and Engineering & Institute of Materials Science, University of Connecticut, 25 King Hill Road, Unit 3136, Storrs, CT, 06269-3136, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Qian Wu
- Pathology and Laboratory Medicine, University of Connecticut Health Center, 63 Farmington Avenue, Farmington, CT, 06030, USA
| | - Ramaswamy M Chidambaram
- Center for Comparative Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - Kevin W H Lo
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
- Department of Medicine, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Cato T Laurencin
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA
- The Cato T. Laurencin Institute for Regenerative Engineering, University of Connecticut Health, Farmington, CT, 06030, USA
- Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, CT, 06269, USA
- Department of Materials Science and Engineering & Institute of Materials Science, University of Connecticut, 25 King Hill Road, Unit 3136, Storrs, CT, 06269-3136, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
- Department of Orthopaedic Surgery University of Connecticut Health, Farmington, CT, 06030, USA
| | - Thanh D Nguyen
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, 06269, USA.
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, 06269, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA.
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10
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Li Z, Ye K, Yin Y, Zhou J, Li D, Gan Y, Peng D, Zhao L, Xiao M, Zhou Y, Dai Y, Tang Y. Low-intensity pulsed ultrasound ameliorates erectile dysfunction induced by bilateral cavernous nerve injury through enhancing Schwann cell-mediated cavernous nerve regeneration. Andrology 2023; 11:1188-1202. [PMID: 36762774 DOI: 10.1111/andr.13406] [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: 11/18/2022] [Revised: 01/15/2023] [Accepted: 01/25/2023] [Indexed: 02/11/2023]
Abstract
BACKGROUND Cavernous nerve injury-induced erectile dysfunction caused by pelvic surgery or trauma is refractory to conventional medications and required an alternative treatment. Low-intensity pulsed ultrasound is a noninvasive mechanical therapy that promotes nerve regeneration. OBJECTIVES To investigate the therapeutic effect and potential mechanism of low-intensity pulsed ultrasound in the treatment of neurogenic erectile dysfunction. MATERIALS AND METHODS Thirty rats were randomly divided into the sham-operated group, bilateral cavernous nerve injury group, and bilateral cavernous nerve injury + low-intensity pulsed ultrasound group. The erectile function was assessed 3 weeks after daily low-intensity pulsed ultrasound treatment. The penile tissues and cavernous nerve tissues were harvested and subjected to histologic analysis. Primary Schwann cells and explants were extracted from adult rats. The effects of low-intensity pulsed ultrasound on proliferation, migration, and nerve growth factor expression of Schwann cells and axonal elongation were examined in vitro. RNA sequencing and western blot assay were applied to predict and verify the molecular mechanism of low-intensity pulsed ultrasound-induced Schwann cell activation. RESULTS Our study showed that low-intensity pulsed ultrasound promoted Schwann cells proliferation, migration, and neurotrophic factor nerve growth factor expression. Meanwhile, low-intensity pulsed ultrasound exhibits a stronger ability to enhance Schwann cells-mediated neurite outgrowth of major pelvic ganglion neurons and major pelvic ganglion/cavernous nerve explants in vitro. In vivo experiments demonstrated that the erectile function of the rats in the bilateral cavernous nerve injury + low-intensity pulsed ultrasound group was significantly higher than those in the bilateral cavernous nerve injury groups. Moreover, the expression levels of smooth muscle and cavernous endothelium also increased significantly in the bilateral cavernous nerve injury + low-intensity pulsed ultrasound group. In addition, we observed the higher density and number of cavernous nerve regenerating axons in the bilateral cavernous nerve injury + low-intensity pulsed ultrasound group, indicating that low-intensity pulsed ultrasound promotes axonal regeneration following cavernous nerve injury in vivo. RNA sequencing analysis and bioinformatic analysis suggested that low-intensity pulsed ultrasound might trigger the activation of the PI3K/Akt pathway. Western blot assay confirmed that low-intensity pulsed ultrasound activated Schwann cells through TrkB/Akt/CREB signaling. CONCLUSIONS Low-intensity pulsed ultrasound promoted nerve regeneration and ameliorated erectile function by enhancing Schwann cells proliferation, migration, and neurotrophic factor nerve growth factor expression. The TrkB/Akt/CREB axis is the possible mechanism of low-intensity pulsed ultrasound-mediated Schwann cell activation. Low-intensity pulsed ultrasound-based therapy could be a novel potential treatment strategy for cavernous nerve injury-induced neurogenic erectile dysfunction.
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Affiliation(s)
- Zitaiyu Li
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Kun Ye
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Yinghao Yin
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Jun Zhou
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Dongjie Li
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Yu Gan
- Department of Urology, Xiangya Hospital, Central South University, Changsha, China
| | - Dongyi Peng
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Liangyu Zhao
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Ming Xiao
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Yihong Zhou
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Yingbo Dai
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Yuxin Tang
- Department of Urology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
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11
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Li Y, Li W, Liu X, Liu X, Zhu B, Guo S, Wang C, Wang D, Li S, Zhang Z. Effects of Low-Intensity Pulsed Ultrasound in Tendon Injuries. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2023; 42:1923-1939. [PMID: 37079603 DOI: 10.1002/jum.16230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 03/16/2023] [Accepted: 03/22/2023] [Indexed: 05/03/2023]
Abstract
Tendon injuries are the most common soft tissue injuries, caused by tissue overuse and age-related degeneration. However, the tendon repair process is slow and inefficient due to the lack of cellular structure and blood vessels in the tendon. Low-intensity pulsed ultrasound (LIPUS) has received increasing attention as a non-invasive, simple, and safe way to promote tendon healing. This review summarizes the effects and underlying mechanisms of LIPUS on tendon injury by comprehensively examining the published literature, including in vitro, in vivo, and clinical studies. This review reviewed 24 studies, with 87.5% showing improvement. The application of LIPUS in tendon diseases is a promising field worthy of further study.
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Affiliation(s)
- Yujie Li
- Institute of Physical Education, Southwest Medical University, Luzhou, Sichuan, China
| | - Wei Li
- Orthopaedics Department, Hejiang County People's Hospital, Luzhou, Sichuan, China
| | - Xinyue Liu
- Institute of Physical Education, Southwest Medical University, Luzhou, Sichuan, China
| | - Xueli Liu
- Institute of Physical Education, Southwest Medical University, Luzhou, Sichuan, China
| | - Bin Zhu
- Institute of Physical Education, Southwest Medical University, Luzhou, Sichuan, China
| | - Sheng Guo
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Chenglong Wang
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Dingxuan Wang
- Institute of Physical Education, Southwest Medical University, Luzhou, Sichuan, China
| | - Sen Li
- Spinal Surgery Department, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Zhongfa Zhang
- Orthopaedics Department, Hejiang County People's Hospital, Luzhou, Sichuan, China
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Li X, Li W, Sun L, Ren J, Xu Y, Zheng Y, Bai W. Efficacy of low-intensity pulsed ultrasound for the treatment of viral pneumonia: study protocol for a randomized controlled trial. Trials 2023; 24:389. [PMID: 37296443 DOI: 10.1186/s13063-023-07382-1] [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: 01/13/2023] [Accepted: 05/16/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Viral pneumonia has always been a problem faced by clinicians because of its insidious onset, strong infectivity, and lack of effective drugs. Patients with advanced age or underlying diseases may experience more severe symptoms and are prone to severe ventilation dysfunction. Reducing pulmonary inflammation and improving clinical symptoms is the focus of current treatment. Low-intensity pulsed ultrasound (LIPUS) can mitigate inflammation and inhibit edema formation. We aimed to investigate the efficacy of therapeutic LIPUS in improving lung inflammation in hospitalized patients with viral pneumonia. METHODS Sixty eligible participants with clinically confirmed viral pneumonia will be assigned to either (1) intervention group (LIPUS stimulus), (2) control group (null stimulus), or (3) self-control group (LIPUS stimulated areas versus non-stimulated areas). The primary outcome will be the difference in the extent of absorption and dissipation of lung inflammation on computed tomography. Secondary outcomes include changes in lung inflammation on ultrasonography images, pulmonary function, blood gas analysis, fingertip arterial oxygen saturation, serum inflammatory factor levels, the sputum excretion volume, time to the disappearance of pulmonary rales, pneumonia status score, and course of pneumonia. Adverse events will be recorded. DISCUSSION This study is the first clinical study of the efficacy of therapeutic LIPUS in the treatment of viral pneumonia. Given that the current clinical recovery mainly depends on the body's self-limiting and conventional symptomatic treatment, LIPUS, as a new therapy method, might be a major advance in the treatment of viral pneumonia. TRIAL REGISTRATION ChiCTR2200059550 Chinese Clinical Trial Registry, May 3, 2022.
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Affiliation(s)
- Xiao Li
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China
| | - Wen Li
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China
| | - Lianjie Sun
- Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao University, Wutaishan Road 1677, Qingdao, 266555, China
| | - Junyi Ren
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China
| | - Ying Xu
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China
| | - Yuanyi Zheng
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China.
| | - Wenkun Bai
- Department of Ultrasound in Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Ultrasound in Medicine, Yishan Road 600, Shanghai, 200233, China.
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13
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Hornsby TK, Jakhmola A, Kolios MC, Tavakkoli J. A Quantitative Study of Thermal and Non-thermal Mechanisms in Ultrasound-Induced Nano-drug Delivery. ULTRASOUND IN MEDICINE & BIOLOGY 2023; 49:1288-1298. [PMID: 36822894 DOI: 10.1016/j.ultrasmedbio.2023.01.015] [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: 09/11/2022] [Revised: 01/11/2023] [Accepted: 01/19/2023] [Indexed: 05/11/2023]
Abstract
OBJECTIVE The primary objective of this study was to quantify the contributions to drug release for thermal and non-thermal mechanisms in ultrasound-induced release from gold nanoparticles (GNPs) for the first time. METHODS We studied doxorubicin (DOX) and curcumin release from the surface of GNPs using two different methods to induce drug release in an ex vivo tissue model: (i) localized tissue heating with a water bath and (ii) low-intensity pulsed ultrasound (LIPUS) exposure. Both methods have similar temperature profiles and can induce the release of both hydrophobic (curcumin) and hydrophilic (DOX) drugs from the surface of GNPs. Quantitative drug release in both cases was compared via fluorescence measurements. DISCUSSION The water bath heating method induced drug release using thermal effects only, whereas LIPUS exposure induced drug release used a combination of thermal and non-thermal mechanisms. It was found that there were increases of 70 ± 16% (curcumin) and 127 ± 20% (DOX) in drug release when LIPUS was used to induce drug release (both thermal and non-thermal mechanisms) as compared with the water bath (thermal mechanisms only) mediated release. CONCLUSION We determined that non-thermal mechanisms account for 41 ± 3% of curcumin release and 56 ± 4% of DOX release. It was concluded that in our ex vivo tissue model, the non-thermal mechanisms play a significant role in LIPUS-induced drug release from GNP drug carriers and that the contributions of non-thermal mechanisms to drug release depend on the type of anticancer drug loaded on the GNP surface.
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Affiliation(s)
- Tyler K Hornsby
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Anshuman Jakhmola
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Michael C Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Jahangir Tavakkoli
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada.
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14
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Iacoponi F, Cafarelli A, Fontana F, Pratellesi T, Dumont E, Barravecchia I, Angeloni D, Ricotti L. Optimal low-intensity pulsed ultrasound stimulation for promoting anti-inflammatory effects in macrophages. APL Bioeng 2023; 7:016114. [PMID: 36968453 PMCID: PMC10036142 DOI: 10.1063/5.0137881] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/24/2023] [Indexed: 03/24/2023] Open
Abstract
In this paper, we stimulated M1-like macrophages (obtained from U937 cells) with low-intensity pulsed ultrasound (LIPUS) to lower pro-inflammatory cytokine production. A systematic screening of different frequencies, intensities, duty cycles, and exposure times was performed. The optimal stimulation conditions leading to a marked decrease in the release of inflammatory cytokines were determined to be 38 kHz, 250 mW/cm2, 20%, and 90 min, respectively. Using these parameters, we verified that up to 72 h LIPUS did not affect cell viability, resulting in an increase in metabolic activity and in a reduction of reactive oxygen species (ROS) production. Moreover, we found that two mechanosensitive ion channels (PIEZO1 and TRPV1) were involved in the LIPUS-mediated cytokine release modulation. We also assessed the role of the nuclear factor κB (NF-κB) signaling pathway and observed an enhancement of actin polymerization. Finally, transcriptomic data suggested that the bioeffects of LIPUS treatment occur through the modulation of p38 MAPK signaling pathway.
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Affiliation(s)
| | | | | | | | | | - Ivana Barravecchia
- Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56127 Pisa, Italy
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15
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Effects and mechanotransduction pathways of therapeutic ultrasound on healthy and osteoarthritic chondrocytes: a systematic review of in vitro studies. Osteoarthritis Cartilage 2023; 31:317-339. [PMID: 36481451 DOI: 10.1016/j.joca.2022.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To investigate the effects and mechanotransduction pathways of therapeutic ultrasound on chondrocytes. METHOD PubMed, EMBASE and Web of Science databases were searched up to 19th September 2021 to identify in vitro studies exploring ultrasound to stimulate chondrocytes for osteoarthritis (OA) treatment. Study characteristics, ultrasound parameters, in vitro setup, and mechanotransduction pathways were collected. Risk of bias was judged using the Risk of Bias Assessment for Non-randomized Studies (RoBANS) tool. RESULTS Thirty-one studies were included comprising healthy and OA chondrocytes and explants. Most studies had high risk of performance, detection and pseudoreplication bias due to lack of temperature control, setup calibration, inadequate semi-quantitatively analyzes and independent experiments. Ultrasound was applied to the culture plate via acoustic gel, water bath or culture media. Regardless of the setup used, ultrasound stimulated the cartilage production and suppressed its degradation, although the effect size was nonsignificant. Ultrasound inhibited p38, c-Jun N-terminal kinases (JNK) and factor nuclear kappa B (NFκB) pathways in OA chondrocytes to reduce apoptosis, inflammation and matrix degradation, while triggered phosphoinositide-3-kinase/akt (PI3K/Akt), extracellular signal-regulated kinase (ERK), p38 and JNK pathways in healthy chondrocytes to promote matrix synthesis. CONCLUSION The included studies suggest that ultrasound application induces therapeutic effects on chondrocytes. However, these results should be interpreted with caution because high risk of performance, detection and pseudoreplication bias were identified. Future studies should explore the application of ultrasound on human OA chondrocytes cultures to potentiate the applicability of ultrasound towards cartilage regeneration of knee with OA.
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16
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Qin H, Du L, Luo Z, He Z, Wang Q, Chen S, Zhu YL. The therapeutic effects of low-intensity pulsed ultrasound in musculoskeletal soft tissue injuries: Focusing on the molecular mechanism. Front Bioeng Biotechnol 2022; 10:1080430. [PMID: 36588943 PMCID: PMC9800839 DOI: 10.3389/fbioe.2022.1080430] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Musculoskeletal soft tissue injuries are very common and usually occur during both sporting and everyday activities. The intervention of adjuvant therapies to promote tissue regeneration is of great importance to improving people's quality of life and extending their productive lives. Though many studies have focused on the positive results and effectiveness of the LIPUS on soft tissue, the molecular mechanisms standing behind LIPUS effects are much less explored and reported, especially the intracellular signaling pathways. We incorporated all research on LIPUS in soft tissue diseases since 2005 and summarized studies that uncovered the intracellular molecular mechanism. This review will also provide the latest evidence-based research progress in this field and suggest research directions for future experiments.
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Affiliation(s)
- Haocheng Qin
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Liang Du
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhiwen Luo
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Zhong He
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Qing Wang
- Department of Orthopedics, Kunshan Hospital of Chinese Medicine, Suzhou, China
| | - Shiyi Chen
- Department of Sports Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yu-Lian Zhu
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai, China
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17
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Moussadikine I, Nguyễn MV, Nich C, Arrigoni PP, Quinette Y, Crenn V. MRI Bone Abnormality of the Knee following Ultrasound Therapy: Case Report and Short Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14202. [PMID: 36361081 PMCID: PMC9654887 DOI: 10.3390/ijerph192114202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Ultrasound (US) therapy in sports and medical pathologies is widely used by many physiotherapists and sports medicine clinicians; however, data regarding their potential side effects remain rare. We report a case of a 21-year-old woman with iliotibial band (ITB) syndrome treated with a physiotherapy session combined with US therapy. She had twenty 7 min US sessions on the knee, for 3 months (US at 1 Mhz with an intensity between 1 and 2 W/cm2). Due to persistence of the ITB syndrome's symptomatology after the 3 months of physiotherapy sessions, an MRI (magnetic resonance imaging) was carried out and revealed osteonecrosis-like bone abnormalities on the external femoral condyle, the external tibial plateau, and the proximal fibula. In view of these lesions, the ultrasonic therapy was stopped, and a repeat MRI demonstrated the progressive disappearance of these imaging abnormalities one year after the last US (ultrasound) treatment. In light of this case, we propose here a short review of reported osseous "osteonecrosis" abnormalities associated with US therapies.
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Affiliation(s)
- Ismaël Moussadikine
- Orthopedic and Traumatology Unit, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
| | - Mỹ-Vân Nguyễn
- Orthopedic and Traumatology Unit, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
| | - Christophe Nich
- Orthopedic and Traumatology Unit, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
- INSERM, UMRS 1229, Regenerative Medicine and Skeleton (RMeS), Nantes Université, ONIRIS, 44042 Nantes, France
| | - Pierre-Paul Arrigoni
- Radiology Department, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
| | - Yonis Quinette
- Orthopedic and Traumatology Unit, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
| | - Vincent Crenn
- Orthopedic and Traumatology Unit, Nantes University Hospital, 1 Place Alexis Ricordeau, 44000 Nantes, France
- CRCI2NA (Centre de Recherche en Cancérologie et Immunologie Nantes-Angers), INSERM UMR 1307, CNRS UMR 6075-Team 9 CHILD (Chromatin and Transcriptional Deregulation in Pediatric Bone Sarcoma), Nantes Université, 1 rue Gaston Veil, 44035 Nantes, France
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18
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A Tissue Engineering Acoustophoretic (TEA) Set-up for the Enhanced Osteogenic Differentiation of Murine Mesenchymal Stromal Cells (mMSCs). Int J Mol Sci 2022; 23:ijms231911473. [PMID: 36232775 PMCID: PMC9570200 DOI: 10.3390/ijms231911473] [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: 08/31/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/30/2022] Open
Abstract
Quickly developing precision medicine and patient-oriented treatment strategies urgently require novel technological solutions. The randomly cell-populated scaffolds usually used for tissue engineering often fail to mimic the highly anisotropic characteristics of native tissue. In this work, an ultrasound standing-wave-based tissue engineering acoustophoretic (TEA) set-up was developed to organize murine mesenchymal stromal cells (mMSCs) in an in situ polymerizing 3-D fibrin hydrogel. The resultant constructs, consisting of 17 cell layers spaced at 300 µm, were obtained by continuous wave ultrasound applied at a 2.5 MHz frequency. The patterned mMSCs preserved the structured behavior within 10 days of culturing in osteogenic conditions. Cell viability was moderately increased 1 day after the patterning; it subdued and evened out, with the cells randomly encapsulated in hydrogels, within 21 days of culturing. Cells in the structured hydrogels exhibited enhanced expression of certain osteogenic markers, i.e., Runt-related transcription factor 2 (RUNX2), osterix (Osx) transcription factor, collagen-1 alpha1 (COL1A1), osteopontin (OPN), osteocalcin (OCN), and osteonectin (ON), as well as of certain cell-cycle-progression-associated genes, i.e., Cyclin D1, cysteine-rich angiogenic inducer 61 (CYR61), and anillin (ANLN), when cultured with osteogenic supplements and, for ANLN, also in the expansion media. Additionally, OPN expression was also augmented on day 5 in the patterned gels cultured without the osteoinductive media, suggesting the pro-osteogenic influence of the patterned cell organization. The TEA set-up proposes a novel method for non-invasively organizing cells in a 3-D environment, potentially enhancing the regenerative properties of the designed anisotropic constructs for bone healing.
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Voxtalisib and Low Intensity Pulsed Ultrasound Combinatorial Effect On Glioblastoma Multiforme Cancer Stem Cells Via PI3K/AKT/mTOR. Pathol Res Pract 2022; 239:154145. [DOI: 10.1016/j.prp.2022.154145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/15/2022] [Accepted: 09/26/2022] [Indexed: 11/22/2022]
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Ganse B, Orth M, Roland M, Diebels S, Motzki P, Seelecke S, Kirsch SM, Welsch F, Andres A, Wickert K, Braun BJ, Pohlemann T. Concepts and clinical aspects of active implants for the treatment of bone fractures. Acta Biomater 2022; 146:1-9. [PMID: 35537678 DOI: 10.1016/j.actbio.2022.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/24/2022] [Accepted: 05/02/2022] [Indexed: 12/17/2022]
Abstract
Nonunion is a complication of long bone fractures that leads to disability, morbidity and high costs. Early detection is difficult and treatment through external stimulation and revision surgery is often a lengthy process. Therefore, alternative diagnostic and therapeutic options are currently being explored, including the use of external and internal sensors. Apart from monitoring fracture stiffness and displacement directly at the fracture site, it would be desirable if an implant could also vary its stiffness and apply an intervention to promote healing, if needed. This could be achieved either by a predetermined protocol, by remote control, or even by processing data and triggering the intervention itself (self-regulated 'intelligent' or 'smart' implant). So-called active or smart materials like shape memory alloys (SMA) have opened up opportunities to build active implants. For example, implants could stimulate fracture healing by active shortening and lengthening via SMA actuator wires; by emitting pulses, waves, or electromagnetic fields. However, it remains undefined which modes of application, forces, frequencies, force directions, time durations and periods, or other stimuli such implants should ideally deliver for the best result. The present paper reviews the literature on active implants and interventions for nonunion, discusses possible mechanisms of active implants and points out where further research and development are needed to build an active implant that applies the most ideal intervention. STATEMENT OF SIGNIFICANCE: Early detection of delays during fracture healing and timely intervention are difficult due to limitations of the current diagnostic strategies. New diagnostic options are under evaluation, including the use of external and internal sensors. In addition, it would be desirable if an implant could actively facilitate healing ('Intelligent' or 'smart' implant). Implants could stimulate fracture healing via active shortening and lengthening; by emitting pulses, waves, or electromagnetic fields. No such implants exist to date, but new composite materials and alloys have opened up opportunities to build such active implants, and several groups across the globe are currently working on their development. The present paper is the first review on this topic to date.
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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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22
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Frutos Díaz-Alejo J, Gonzalez Gomez I, Earl J. Ultrasounds in cancer therapy: A summary of their use and unexplored potential. Oncol Rev 2022; 16:531. [PMID: 35340884 PMCID: PMC8941342 DOI: 10.4081/oncol.2022.531] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 09/17/2021] [Indexed: 11/26/2022] Open
Abstract
Ultrasounds (US) are a non-ionizing mechanical wave, with less adverse effects than conventional pharmacological or surgical treatments. Different biological effects are induced in tissues and cells by ultrasound actuation depending on acoustic parameters, such as the wave intensity, frequency and treatment dose. This non-ionizing radiation has considerable applications in biomedicine including surgery, medical imaging, physical therapy and cancer therapy. Depending on the wave intensity, US are applied as high-intensity ultrasounds (HIUS) and low-intensity pulsed ultrasounds (LIPUS), with different effects on cells and tissues. HIUS produce thermal and mechanical effects, resulting in a large localized temperature increase, leading to tissue ablation and even tumor necrosis. This can be achieved by focusing low intensity waves emitted from different electrically shifted transducers, known as high-intensity focused ultrasounds (HIFU). LIPUS have been used extensively as a therapeutic, surgical and diagnostic tool, with diverse biological effects observed in tissues and cultured cells. US represent a non-invasive treatment strategy that can be applied to selected areas of the body, with limited adverse effects. In fact, tumor ablation using HIFU has been used as a curative treatment in patients with an early-stage pancreatic tumor and is an effective palliative treatment in patients with advanced stage disease. However, the biological effects, dose standardization, benefit-risk ratio and safety are not fully understood. Thus, it is an emerging field that requires further research in order to reach its full potential.
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Chauvel-Picard J, Gourmet R, Vercherin P, Béra JC, Gleizal A. Stimulation of dental implant osseointegration by low-Intensity pulsed ultrasound: An in vivo preliminary study in a porcine model. J Prosthodont Res 2022; 66:639-645. [PMID: 35135957 DOI: 10.2186/jpr.jpr_d_21_00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSES Several studies have evaluated the interest of Low Intensity Pulsed Ultrasound (LIPUS) in the osseointegration of dental implants in murine or rabbit models. However, the thinness and narrowness bones make it difficult to study the effect of LIPUS. The purpose of this study is to assess the ability of LIPUS to stimulate bone formation in contact with a titanium dental implant in a porcine model. METHODS Eight adults mini-pigs were used. An implant is placed on each tibial crest in the metaphysis. The right side was treated with LIPUS at 1 MHz and 300 mW/cm2 of acoustic intensity during 15 minutes per day on 5 consecutive days and during 42 days. The left side was not treated. The Bone Volume/Total Volume ratio (BV/TV), the Intersection Surface (IS) of the volume of interest by the binarized bone and the Trabecular bone Thickness (TbTh) around the implant were analyzed. RESULTS At 42 days, BV/TV ratio is significantly higher on the treated side (42,1+/-8,76% versus 32,31+/-10,11%, p < 0,02); as well as TbTh with 0,13+/-0,01 mm versus 0,10+/-0,01 mm (p < 0,01). IS is also significantly higher on the treated side (40,7 +/- 12,68 mm2 versus 33,68+/-9,44 mm2 at 200 μm from the implant surface; p < 0,01). CONCLUSION The present study showed that LIPUS can significantly increase bone formation and accelerate the healing process at the bone-implant interface in a porcine model. Its low toxicity, low immunogenicity and non-invasion make it a complementary treatment of choice for improving the bone formation around titanium implants.
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Affiliation(s)
- Julie Chauvel-Picard
- Department of Cranio-Maxillo-Facial Surgery, Centre Hospitalo-Universitaire Nord, France.,Université Jean Monnet Saint-Etienne, France
| | - René Gourmet
- INSERM, National Institute of Health and Medical Research, Unit 1032, Lab of Therapeutic Applications of Ultrasound, France
| | - Paul Vercherin
- Public Health department, Centre Hospitalo-Universitaire Nord, France
| | - Jean-Christophe Béra
- INSERM, National Institute of Health and Medical Research, Unit 1032, Lab of Therapeutic Applications of Ultrasound, France
| | - Arnaud Gleizal
- Department of Cranio-Maxillo-Facial Surgery, Centre Hospitalo-Universitaire Nord, France.,Université Jean Monnet Saint-Etienne, France
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Zhang X, Cheng Y, Pei L, Tao J, Wang R, Chen Z. Case report: Successful treatment of human diabetic foot ulcer using low-intensity diagnostic ultrasound combined with microbubbles: Two cases. Front Endocrinol (Lausanne) 2022; 13:1046896. [PMID: 36506057 PMCID: PMC9732241 DOI: 10.3389/fendo.2022.1046896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/09/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Diabetic foot ulcer (DFU) is one of the serious complications of diabetes, which has high disability rate and mortality. Low-intensity ultrasound combined with microbubbles in blood circulation can enhance the blood perfusion effect of local soft tissue, which has the potential to promote the healing of diabetic ulcer. Here, we report how this method was used to help the healing of two patients with chronic refractory DFUs. CASE PRESENTATION In case 1, a 56-year-old man with 3-years history of type 2 diabetes had a 3.0×2.0 cm ulcer which infected with staphylococcus aureus on his right calf for more than half a month. In case 2, a 70-year-old man with 10-years history of type 2 diabetes presented with an 8-month right heel ulcer that developed to 7.5×4.6 cm. And he also had hyperlipidemia, hypertension, and renal impairment. Both patients were enrolled in our study to receive treatment of low-intensity diagnostic ultrasound (LIDUS) combined with microbubbles. They were discharged after a 20-minute daily standard treatment for 7 consecutive days. The ulcers in both cases completely healed in 60 days and 150 days, respectively, and haven't recurred for more than one year of follow-up. CONCLUSION It is feasible, safe, and effective to use commercial LIDUS combined with commercial microbubbles in the treatment of diabetic lower extremity ulcers. This study may provide an innovative and non-invasive method for the treatment of DFUs.
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Affiliation(s)
- Xiaojuan Zhang
- Department of Ultrasound, the General Hospital of Western Theater Command, Chengdu, China
| | - Ying Cheng
- Department of Endocrinology, the General Hospital of Western Theater Command, Chengdu, China
| | - Ling Pei
- Department of Ultrasound, the General Hospital of Western Theater Command, Chengdu, China
| | - Jie Tao
- Department of Ultrasound, the General Hospital of Western Theater Command, Chengdu, China
| | - Rui Wang
- Department of Ultrasound, the General Hospital of Western Theater Command, Chengdu, China
- *Correspondence: Zhong Chen, ; Rui Wang,
| | - Zhong Chen
- Department of Ultrasound, the General Hospital of Western Theater Command, Chengdu, China
- *Correspondence: Zhong Chen, ; Rui Wang,
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Yi W, Chen Q, Liu C, Li K, Tao B, Tian G, Zhou L, Li X, Shen J, Liu B, Hu Z, Wang D, Bai D. LIPUS inhibits inflammation and catabolism through the NF-κB pathway in human degenerative nucleus pulposus cells. J Orthop Surg Res 2021; 16:619. [PMID: 34663388 PMCID: PMC8522043 DOI: 10.1186/s13018-021-02739-1] [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: 07/11/2021] [Accepted: 09/21/2021] [Indexed: 11/29/2022] Open
Abstract
Background Low-intensity pulsed ultrasound (LIPUS) is a safe and noninvasive rehabilitative physical therapy with anti-inflammatory effects. The current study investigated the effect of LIPUS on the inflammation of nucleus pulposus (NP) cells and its underlying mechanism. Methods Human NP cells were acquired from lumbar disc herniation tissue samples and cultured for experiments. Human NP cells were treated with LPS and then exposed to LIPUS (15 mW/cm2, 30 mW/cm2 and 60 mW/cm2) for 20 min daily for 3 days to determine the appropriate intensity to inhibit the expression of the inflammatory factors TNF-α and IL-1β. The gene and protein expression of aggrecan, collagen II, MMP-3 and MMP-9 was measured by real‐time PCR and western blotting, respectively. The activity of the nuclear factor‐kappa B (NF‐κB) pathway was examined by western blotting and immunofluorescence. After pretreatment with the NF-κB inhibitor PDTC, the expression of TNF-α, IL-1β, MMP-3 and MMP-9 was measured by real‐time PCR. Results LIPUS at intensities of 15 mW/cm2, 30 mW/cm2 and 60 mW/cm2 inhibited LPS-induced NP cell expression of the inflammatory factors TNF-α and IL-1β, especially at 30 mW/cm2. LIPUS significantly upregulated the gene and protein expression of aggrecan and collagen II and downregulated the gene and protein expression of MMP-3 and MMP-9 in LPS-induced NP cells. The NF‐κB signaling pathway was inhibited by LIPUS through inhibiting the protein expression of p-P65 and the translocation of P65 into the nucleus in LPS-induced NP cells. In addition, LIPUS had similar effects as the NF-κB inhibitor PDTC by inhibiting the NF-κB signaling pathway, inflammation and catabolism in LPS-induced human degenerative nucleus pulposus cells. Conclusion LIPUS inhibited inflammation and catabolism through the NF‐κB pathway in human degenerative nucleus pulposus cells.
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Affiliation(s)
- Weiwei Yi
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Qing Chen
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Chuan Liu
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Kaiting Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Bailong Tao
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Guihua Tian
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Lu Zhou
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Xiaohong Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Jieliang Shen
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Bo Liu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Zhenming Hu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China
| | - Dawu Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China.
| | - Dingqun Bai
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Chongqing Medical University, No. 1 Shiyou Street, Yuzhong District, Chongqing, 400010, China.
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Fontana F, Iberite F, Cafarelli A, Aliperta A, Baldi G, Gabusi E, Dolzani P, Cristino S, Lisignoli G, Pratellesi T, Dumont E, Ricotti L. Development and validation of low-intensity pulsed ultrasound systems for highly controlled in vitro cell stimulation. ULTRASONICS 2021; 116:106495. [PMID: 34186322 DOI: 10.1016/j.ultras.2021.106495] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 04/25/2021] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
This work aims to describe the development and validation of two low-intensity pulsed ultrasound stimulation systems able to control the dose delivered to the biological target. Transducer characterization was performed in terms of pressure field shape and intensity, for a high-frequency range (500 kHz to 5 MHz) and for a low-frequency value (38 kHz). This allowed defining the distance, on the beam axis, at which biological samples should be placed during stimulation and to exactly know the intensity at the target. Carefully designed retaining systems were developed, for hosting biological samples. Sealing tests proved their impermeability to external contaminants. The assembly/de-assembly time of the systems resulted ~3 min. Time-domain acoustic simulations allowed to precisely estimate the ultrasound beam within the biological sample chamber, thus enabling the possibility to precisely control the pressure to be transmitted to the biological target, by modulating the transducer's input voltage. Biological in vitro tests were also carried out, demonstrating the sterility of the system and the absence of toxic and inflammatory effects on growing cells after multiple immersions in water, over seven days.
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Affiliation(s)
- F Fontana
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
| | - F Iberite
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
| | - A Cafarelli
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
| | - A Aliperta
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
| | - G Baldi
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
| | - E Gabusi
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, 40136 Bologna, Italy.
| | - P Dolzani
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, 40136 Bologna, Italy.
| | - S Cristino
- Dipartimento Scienze Biologiche, Geologiche e Ambientali (BiGeA), Università di Bologna, 40126 Bologna, Italy.
| | - G Lisignoli
- IRCCS Istituto Ortopedico Rizzoli, SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, 40136 Bologna, Italy.
| | | | - E Dumont
- Image Guided Therapy, 33600 Pessac, France.
| | - L Ricotti
- The BioRobotics Institute, Scuola Superiore Sant'Anna, 56127 Pisa, Italy; Department of Excellence in Robotics & AI, Scuola Superiore Sant'Anna, 56127 Pisa, Italy.
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Peng DY, Reed-Maldonado AB, Lin GT, Xia SJ, Lue TF. Low-intensity pulsed ultrasound for regenerating peripheral nerves: potential for penile nerve. Asian J Androl 2021; 22:335-341. [PMID: 31535626 PMCID: PMC7406088 DOI: 10.4103/aja.aja_95_19] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Peripheral nerve damage, such as that found after surgery or trauma, is a substantial clinical challenge. Much research continues in attempts to improve outcomes after peripheral nerve damage and to promote nerve repair after injury. In recent years, low-intensity pulsed ultrasound (LIPUS) has been studied as a potential method of stimulating peripheral nerve regeneration. In this review, the physiology of peripheral nerve regeneration is reviewed, and the experiments employing LIPUS to improve peripheral nerve regeneration are discussed. Application of LIPUS following nerve surgery may promote nerve regeneration and improve functional outcomes through a variety of proposed mechanisms. These include an increase of neurotrophic factors, Schwann cell (SC) activation, cellular signaling activations, and induction of mitosis. We searched PubMed for articles related to these topics in both in vitro and in vivo animal research models. We found numerous studies, suggesting that LIPUS following nerve surgery promotes nerve regeneration and improves functional outcomes. Based on these findings, LIPUS could be a novel and valuable treatment for nerve injury-induced erectile dysfunction.
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Affiliation(s)
- Dong-Yi Peng
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA 94143, USA.,Department of Urology, The Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - Amanda B Reed-Maldonado
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA 94143, USA
| | - Gui-Ting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA 94143, USA
| | - Shu-Jie Xia
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Tom F Lue
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, CA 94143, USA
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Seong S, Kim D, Lee D, Kim HR, Shin Y. Low-intensity pulsed ultrasound attenuates replacement root resorption of avulsed teeth stored in dry condition in dogs. Sci Rep 2021; 11:12892. [PMID: 34145362 PMCID: PMC8213703 DOI: 10.1038/s41598-021-92471-x] [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: 10/22/2020] [Accepted: 06/03/2021] [Indexed: 11/24/2022] Open
Abstract
This study aimed to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on replacement root resorption after replantation of avulsed teeth stored in a dry condition in dogs. A total of 73 premolar roots from four male mongrel dogs were intentionally avulsed with forceps and divided into four groups—HN, HL, DN, and DL—according to storage conditions and whether or not they received LIPUS treatment. Thirty-eight roots were kept in Hanks’ Balanced Salt Solution for 30 min (HN and HL groups), whereas the remaining 35 roots were left to dry in the air for an hour (DN and DL groups) prior to replantation. Following replantation, the roots in the HL and DL groups (21 and 18 roots, respectively) received a 20-min daily LIPUS treatment for 2 weeks. The animals were euthanized 4 weeks after the operation. Micro-computed tomography images were acquired for each root and the amount of replacement root resorption was measured three-dimensionally. Histological assessments were also carried out. There was significantly less replacement root resorption for the roots in the DL group compared to the DN group (p < 0.01). Histological findings in the DN group demonstrated evident replacement root resorption, whereas the DL group revealed less severe resorption compared to the DN group. Within the limitations, these results suggest that LIPUS could attenuate the replacement resorption of avulsed teeth stored in a dry condition, thereby improving their prognosis.
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Affiliation(s)
- Saemi Seong
- Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Dohyun Kim
- Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Dasun Lee
- Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea
| | - Hyung-Ryong Kim
- College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea.
| | - Yooseok Shin
- Department of Conservative Dentistry and Oral Science Research Center, Yonsei University College of Dentistry, Seoul, 03722, Republic of Korea.
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Al Onazi MM, Yurick JL, Harris C, Nishimura K, Suderman K, Pituskin E, Chua N, McNeely ML. Therapeutic Ultrasound for Chemotherapy-Related Pain and Sensory Disturbance in the Hands and Feet in Patients With Colorectal Cancer: A Pilot Randomized Controlled Trial. J Pain Symptom Manage 2021; 61:1127-1138. [PMID: 33137422 DOI: 10.1016/j.jpainsymman.2020.10.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 12/15/2022]
Abstract
CONTEXT This proof-of-concept trial was undertaken as a first step in exploring the clinical benefit of therapeutic ultrasound for pain and sensory disturbance in patients with colorectal cancer. OBJECTIVES The aim of this study was to determine the feasibility and preliminary efficacy of adding therapeutic ultrasound to a home-based therapeutic exercise program (current standard of care) for patients presenting with oxaliplatin-related pain and sensory disturbance in the hands and feet. METHODS Thirty-one colorectal cancer patients with presenting symptoms of peripheral sensory neuropathy, based on a physician-rated grade 1, 2, or 3 on the National Cancer Institute Common Terminology Criteria for Adverse Events for sensory and motor neuropathy, were enrolled in the trial. Patients were randomized to either 10 sessions of ultrasound therapy intervention over two-week period (continuous ultrasound at an intensity of 0.7 to 0.8 w/cm2, and frequency of 3 MHz for 5 minutes) plus standard care (n = 16) or to standard care alone (n = 15). The feasibility of therapeutic ultrasound was determined by the recruitment rate, participants' adherence to the intervention, and the study completion rates. Assessments of pain, sensory disturbance, sensation, and balance were conducted at baseline, two and six weeks. RESULTS We achieved a recruitment rate of 84%, an adherence rate of 100% to the intervention, and a completion rate of 100%. Adding therapeutic ultrasound to standard care resulted in a statistically and clinically significant improvement in symptoms of pain and sensory disturbance (P = 0.003) at two weeks; however, no significance difference between the groups was found at the six-week follow-up. CONCLUSIONS The findings of this proof-of-concept study support the feasibility of the therapeutic ultrasound in addition to standard care as an intervention for colorectal cancer patients with oxaliplatin-related pain and sensory disturbance in the hands and feet. The findings warrant a large-scale placebo-controlled trial.
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Affiliation(s)
- Mona M Al Onazi
- Faculty of Rehabilitation Medicine, Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - Janice L Yurick
- Department of Rehabilitation Medicine, Cross Cancer Institute, Alberta Health Services, Edmonton, Alberta, Canada
| | - Claire Harris
- Faculty of Rehabilitation Medicine, Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - Kacy Nishimura
- Faculty of Rehabilitation Medicine, Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - Kirsten Suderman
- Faculty of Rehabilitation Medicine, Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada
| | - Edith Pituskin
- Faculty of Nursing, University of Alberta, Edmonton, Alberta, Canada; Department of Oncology, Cross Cancer Institute, Alberta Health Services, Edmonton, Alberta, Canada
| | - Neil Chua
- Department of Oncology, Cross Cancer Institute, Alberta Health Services, Edmonton, Alberta, Canada
| | - Margaret L McNeely
- Faculty of Rehabilitation Medicine, Department of Physical Therapy, University of Alberta, Edmonton, Alberta, Canada; Department of Rehabilitation Medicine, Cross Cancer Institute, Alberta Health Services, Edmonton, Alberta, Canada.
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Wang T, Ito A, Xu S, Kawai H, Kuroki H, Aoyama T. Low-Intensity Pulsed Ultrasound Prompts Both Functional and Histologic Improvements While Upregulating the Brain-Derived Neurotrophic Factor Expression after Sciatic Crush Injury in Rats. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1586-1595. [PMID: 33745752 DOI: 10.1016/j.ultrasmedbio.2021.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 01/22/2021] [Accepted: 02/15/2021] [Indexed: 06/12/2023]
Abstract
The aim of this study was to determine that low-intensity pulsed ultrasound (LIPUS) at an intensity of 140 mW/cm2 promotes functional and histologic improvements in sciatic nerve crush injury in a rat model and to investigate changes over time in relevant growth factors and receptors, exploring the mechanism of LIPUS in the recovery process after injury. Toe angle in the toe-off phase, regenerative axonal length, myelinated nerve fiber density, diameter of myelinated nerve fiber, axon diameter and myelin sheath thickness were significantly higher in the LIPUS group than in the sham group. Gene and protein expression of brain-derived neurotrophic factor (BDNF) was upregulated in the LIPUS group. In conclusion, LIPUS contributed to rapid functional and histologic improvement and upregulated BDNF expression after sciatic nerve crush injury in rats.
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Affiliation(s)
- Tianshu Wang
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Akira Ito
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Shixuan Xu
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Kawai
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Kuroki
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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Combining Visible Light and Non-Focused Ultrasound Significantly Reduces Propionibacterium acnes Biofilm While Having Limited Effect on Host Cells. Microorganisms 2021; 9:microorganisms9050929. [PMID: 33925936 PMCID: PMC8146519 DOI: 10.3390/microorganisms9050929] [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: 03/11/2021] [Revised: 04/09/2021] [Accepted: 04/22/2021] [Indexed: 11/30/2022] Open
Abstract
Bacterial biofilms are highly resistant to antibiotics and have been implicated in the etiology of 60%–80% of chronic microbial infections. We tested a novel combination of low intensity ultrasound and blue light against biofilm and planktonic bacteria. A laboratory prototype was built which produced both energies uniformly and coincidently from a single treatment head, impinging upon a 4.45 cm2 target. To demonstrate proof of concept, Propionibacterium acnes biofilms were cultured on Millicell hanging inserts in 6-well plates. Hanging inserts with biofilms were treated in a custom exposure chamber designed to minimize unwanted ultrasound reflections. Coincident delivery of both energies demonstrated synergy over either alone, killing both stationary planktonic and biofilm cultures of P. acnes. Reduction in biofilm bacteria was dose dependent on exposure time (i.e., energy delivered). P. acnes biofilms were significantly reduced by dual energy treatment (p < 0.0001), with a >1 log10 reduction after a 5 min (9 J/cm2) and >3 log10 reduction after a 30 min (54 J/cm2) treatment (p < 0.05). Mammalian cells were found to be unaffected by the treatment. Both the light and the ultrasound energies are at levels previously cleared by the FDA. Therefore, this combination treatment could be used as a safe, efficacious method to treat biofilm related syndromes.
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Yang Q, Zhang R, Tang P, Sun Y, Johnson C, Saredy J, Wu S, Wang J, Lu Y, Saaoud F, Shao Y, Drummer C, Xu K, Yu D, Li R, Ge S, Jiang X, Wang H, Yang X. Ultrasound May Suppress Tumor Growth, Inhibit Inflammation, and Establish Tolerogenesis by Remodeling Innatome via Pathways of ROS, Immune Checkpoints, Cytokines, and Trained Immunity/Tolerance. J Immunol Res 2021; 2021:6664453. [PMID: 33628851 PMCID: PMC7889351 DOI: 10.1155/2021/6664453] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/27/2020] [Accepted: 12/16/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The immune mechanisms underlying low-intensity ultrasound- (LIUS-) mediated suppression of inflammation and tumorigenesis remain poorly determined. METHODS We used microarray datasets from the NCBI GEO DataSet repository and conducted comprehensive data-mining analyses, where we examined the gene expression of 1376 innate immune regulators (innatome genes (IGs) in cells treated with LIUS. RESULTS We made the following findings: (1) LIUS upregulates proinflammatory IGs and downregulates metastasis genes in cancer cells, and LIUS upregulates adaptive immunity pathways but inhibits danger-sensing and inflammation pathways and promote tolerogenic differentiation in bone marrow (BM) cells. (2) LIUS upregulates IGs encoded for proteins localized in the cytoplasm, extracellular space, and others, but downregulates IG proteins localized in nuclear and plasma membranes, and LIUS downregulates phosphatases. (3) LIUS-modulated IGs act partially via several important pathways of reactive oxygen species (ROS), reverse signaling of immune checkpoint receptors B7-H4 and BTNL2, inflammatory cytokines, and static or oscillatory shear stress and heat generation, among which ROS is a dominant mechanism. (4) LIUS upregulates trained immunity enzymes in lymphoma cells and downregulates trained immunity enzymes and presumably establishes trained tolerance in BM cells. (5) LIUS modulates chromatin long-range interactions to differentially regulate IGs expression in cancer cells and noncancer cells. CONCLUSIONS Our analysis suggests novel molecular mechanisms that are utilized by LIUS to induce tumor suppression and inflammation inhibition. Our findings may lead to development of new treatment protocols for cancers and chronic inflammation.
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Affiliation(s)
- Qian Yang
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Department of Ultrasonic Diagnosis and Treatment Center, XiAn International Medical Center Hospital, XiAn, China
- Heart Center, St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Ruijing Zhang
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Department of Nephrology, Second Hospital of Shanxi Medical University, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Peng Tang
- Department of Orthopedics, Beijing Charity Hospital of China Rehabilitation Research Center, Beijing, China
| | - Yu Sun
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Candice Johnson
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Jason Saredy
- Metabolic Disease Research & Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Susu Wu
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Jiwei Wang
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Yifan Lu
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Fatma Saaoud
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Ying Shao
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Charles Drummer
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Keman Xu
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Daohai Yu
- Department of Clinical Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Rongshan Li
- Department of Nephrology, Second Hospital of Shanxi Medical University, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Shuping Ge
- Heart Center, St. Christopher's Hospital for Children, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Xiaohua Jiang
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Metabolic Disease Research & Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Hong Wang
- Metabolic Disease Research & Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Xiaofeng Yang
- Centers for Cardiovascular Research and Inflammation, Translational, & Clinical Lung Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
- Metabolic Disease Research & Thrombosis Research, Departments of Pharmacology, Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
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Kang JW, Cha SM, Kim SG, Choi IC, Suh DH, Park JW. Tips and tricks to achieve osteotomy healing and prevent refracture after ulnar shortening osteotomy. J Orthop Surg Res 2021; 16:110. [PMID: 33541409 PMCID: PMC7863478 DOI: 10.1186/s13018-021-02266-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/26/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Parallel osteotomy is essential for favorable osteotomy reduction and healing and technically challenging during diaphyseal ulnar shortening osteotomy (USO). This study aimed to evaluate the advantages of guided osteotomy for parallel osteotomy and reduction osteotomies, healing over freehand osteotomy. It also aimed to identify surgical factors affecting healing after diaphyseal USO. METHODS Between June 2005 and March 2016, 136 wrists that had undergone diaphyseal USO for ulnar impaction syndrome (UIS) were evaluated. The wrists were divided into two groups according to the osteotomy technique (group 1: freehand osteotomy, 74 wrists; group 2: guided osteotomy, 62 wrists). The osteotomy reduction gap and time to osteotomy healing (union and consolidation) were compared between the groups. A multiple regression test was performed to identify the surgical factors affecting healing. The cut-off length of the reduction gap to achieve osteotomy union on time and the cut-off period to decide the failure of complete consolidation were statistically calculated. RESULTS The baseline characteristics did not differ between the two groups. The osteotomy reduction gap and time to osteotomy union, and complete consolidation were shorter in group 2 than in group 1 (p = 0.002, < 0.001, 0.002). The osteotomy reduction gap was a critical surgical factor affecting both time to osteotomy union and complete consolidation (p < 0.001, < 0.001). The use of a dynamic compression plate affected only the time to complete consolidation (p < 0.001). The cut-off length of the osteotomy reduction gap to achieve osteotomy union on time was 0.85 mm. The cut-off period to decide the failure of complete consolidation was 23.5 months after osteotomy. CONCLUSIONS The minimal osteotomy reduction gap was the most important for timely osteotomy healing in the healthy ulna, and guided osteotomy was beneficial for reducing the osteotomy reduction gap.
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Affiliation(s)
- Jong Woo Kang
- Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 South Korea
| | - Soo Min Cha
- Department of Orthopedic Surgery, Regional Rheumatoid and Degenerative Arthritis Center, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Sang-gyun Kim
- Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 South Korea
| | - In Cheul Choi
- Department of Orthopedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul, Korea
| | - Dong Hun Suh
- Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, 73, Goryeodae-ro, Seongbuk-gu, Seoul, 02841 South Korea
| | - Jong Woong Park
- Department of Orthopedic Surgery, Anam Hospital, College of Medicine, Korea University, Seoul, Korea
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Maeshige N, Langston PK, Yuan ZM, Kondo H, Fujino H. High-intensity ultrasound irradiation promotes the release of extracellular vesicles from C2C12 myotubes. ULTRASONICS 2021; 110:106243. [PMID: 32961400 DOI: 10.1016/j.ultras.2020.106243] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 08/19/2020] [Accepted: 08/28/2020] [Indexed: 06/11/2023]
Abstract
Skeletal muscle is an important secretory organ in mammals, producing myriad chemical mediators ("myokines") with distinct biological action in different tissues, including anti-inflammatory activity. Extracellular vesicles (EVs) have recently been identified as a mode of myokine transport from muscle, facilitating such anti-inflammatory activity. In this report, we have demonstrated that high-intensity ultrasound (US) strongly induces EV secretion from cultured myotubes without a reduction in cell viability. High-intensity US of 3.0 W/cm2 with 20% duty cycle increased the number of EVs by 2-fold compared to control at 6 h. This effect was specific to EVs in the 100-150 nm size range. Thus, high-intensity US is a novel modality for inducing myocellular EV release and may hold therapeutic value.
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Affiliation(s)
- Noriaki Maeshige
- Department of Genetics & Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan.
| | - P Kent Langston
- Department of Genetics & Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Immunology, Harvard Medical School and Evergrande Center for Immunologic Diseases, Harvard Medical School, Boston, MA, USA
| | - Zhi-Min Yuan
- Department of Genetics & Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Hiroyo Kondo
- Department of Food Sciences and Nutrition, Nagoya Women's University, Nagoya, Japan
| | - Hidemi Fujino
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
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Shah HN, Jones RE, Borrelli MR, Robertson K, Salhotra A, Wan DC, Longaker MT. Craniofacial and Long Bone Development in the Context of Distraction Osteogenesis. Plast Reconstr Surg 2021; 147:54e-65e. [PMID: 33370054 PMCID: PMC7773036 DOI: 10.1097/prs.0000000000007451] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Bone retains regenerative potential into adulthood, and surgeons harness this plasticity during distraction osteogenesis. The underlying biology governing bone development, repair, and regeneration is divergent between the craniofacial and appendicular skeleton. Each type of bone formation is characterized by unique molecular signaling and cellular behavior. Recent discoveries have elucidated the cellular and genetic processes underlying skeletal development and regeneration, providing an opportunity to couple biological and clinical knowledge to improve patient care. METHODS A comprehensive literature review of basic and clinical literature regarding craniofacial and long bone development, regeneration, and distraction osteogenesis was performed. RESULTS The current understanding in craniofacial and long bone development and regeneration is discussed, and clinical considerations for the respective distraction osteogenesis procedures are presented. CONCLUSIONS Distraction osteogenesis is a powerful tool to regenerate bone and thus address a number of craniofacial and appendicular skeletal deficiencies. The molecular mechanisms underlying bone regeneration, however, remain elusive. Recent work has determined that embryologic morphogen gradients constitute important signals during regeneration. In addition, striking discoveries have illuminated the cellular processes underlying mandibular regeneration during distraction osteogenesis, showing that skeletal stem cells reactivate embryologic neural crest transcriptomic processes to carry out bone formation during regeneration. Furthermore, innovative adjuvant therapies to complement distraction osteogenesis use biological processes active in embryogenesis and regeneration. Additional research is needed to further characterize the underlying cellular mechanisms responsible for improved bone formation through adjuvant therapies and the role skeletal stem cells play during regeneration.
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Affiliation(s)
- Harsh N. Shah
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Ruth E. Jones
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Mimi R. Borrelli
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Kiana Robertson
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Ankit Salhotra
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Derrick C. Wan
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael T. Longaker
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
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Zhang W, Abdelrasoul GN, Savchenko O, Abdrabou A, Wang Z, Chen J. Ultrasound-assisted magnetic nanoparticle-based gene delivery. PLoS One 2020; 15:e0239633. [PMID: 32970723 PMCID: PMC7514102 DOI: 10.1371/journal.pone.0239633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/09/2020] [Indexed: 11/18/2022] Open
Abstract
Targeted gene delivery is important in biomedical research and applications. In this paper, we synergistically combine non-viral chemical materials, magnetic nanoparticles (MNPs), and a physical technique, low-intensity pulsed ultrasound (LIPUS), to achieve efficient and targeted gene delivery. The MNPs are iron oxide super-paramagnetic nanoparticles, coated with polyethyleneimine (PEI), which makes a high positive surface charge and is favorable for the binding of genetic materials. Due to the paramagnetic properties of the MNPs, the application of an external magnetic field increases transfection efficiency while LIPUS stimulation enhances cell viability and permeability. We found that stimulation at the intensity of 30 mW/cm2 for 10 minutes yields optimal results with a minimal adverse effect on the cells. By combining the effect of the external magnetic field and LIPUS, the genetic material (GFP or Cherry Red plasmid) can enter the cells. The flow cytometry results showed that by using just a magnetic field to direct the genetic material, the transfection efficiency on HEK 293 cells that were treated by our MNPs was 56.1%. Coupled with LIPUS stimulation, it increased to 61.5% or 19% higher than the positive control (Lipofectamine 2000). Besides, compared with the positive control, our method showed less toxicity. Cell viability after transfection was 63.61%, which is 19% higher than the standard transfection technique. In conclusion, we designed a new gene-delivery method that is affordable, targeted, shows low-toxicity, yet high transfection efficiency, compared to other conventional approaches.
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Affiliation(s)
- Wei Zhang
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | - Gaser N Abdelrasoul
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada
| | | | - Abdalla Abdrabou
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Zhixiang Wang
- Department of Medical Genetics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Jie Chen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Canada.,Department of Biomedical Engineering, University of Alberta, Edmonton, Canada
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Ekrami H, Movahedin M, Koosha F, Mazaheri Z, Mokhtari-Dizaji M. The Effects of Calligonum Extract and Low-Intensity Ultrasound on Motility, Viability, and DNA Fragmentation of Human Frozen-Thawed Semen Samples. INTERNATIONAL JOURNAL OF FERTILITY & STERILITY 2020; 14:84-90. [PMID: 32681619 PMCID: PMC7382682 DOI: 10.22074/ijfs.2020.5896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 01/28/2020] [Indexed: 11/04/2022]
Abstract
Background The study aimed to evaluate the impact of Calligonum extract and US radiation on sperm parameters of cryopreserved human semen samples. Materials and Methods In this experimental study, twenty-five semen specimens were obtained from healthy semen donors and incubated in human tubal fluid (HTF) medium supplemented with 10% human serum albumin (HSA) for 45 minutes. Samples were treated with Calligonum extract (10 μg/ml) alone (CGM group) and US radiation (LIPUSexposed group) alone or a combination of both treatments (CGM+LIPUS). The US group received US stimulation (in both continuous and pulsed wave modes) at a frequency of 1 MHZ and intensity of 200 mW/cm2 for 200 seconds. Sperm morphology was assessed by Diff-Quik staining. The DNA fragmentation was evaluated the Halo sperm kit. Sperm parameters was analyzed by a computer-assisted semen analysis system. Reactive oxygen species (ROS) was assessed by flow cytometry. Results The results showed that the treatment with Calligonum extract significantly (P<0.05) increased the progressive motility of spermatozoa in the CGM group as compared with the control group. The application of low-intensity US significantly (P<0.05) decreased the motility and viability of spermatozoa in the US group when compared with the control group. Our findings also indicated that the use of both low-intensity US in continuous mode and Calligonum extract slightly increased progressive motility; however, such an increase was not statistically significant. The rate of DNA fragmentation was considerably higher (P<0.05) in control and LIPUS-exposed groups than the other groups. Conclusion Treatment of spermatozoa with Calligonum extract slightly improved the sperm parameters due to its antioxidant activity, on the other hand, according to our results, US radiation did not improve sperm parameters which may be due to interference with the motility of sperm, as well as its physical effects on spermatozoa.
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Affiliation(s)
- Hamid Ekrami
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.,Basic Medical Science Research Center, Histogenotech Company, Tehran, Iran
| | - Mansoureh Movahedin
- Department of Anatomical Sciences, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. Electronic Address:
| | - Fereshteh Koosha
- Department of Radiology Technology, Faculty of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zohreh Mazaheri
- Basic Medical Science Research Center, Histogenotech Company, Tehran, Iran
| | - Manijhe Mokhtari-Dizaji
- Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Ito A, Wang T, Nakahara R, Kawai H, Nishitani K, Aoyama T, Kuroki H. Ultrasound therapy with optimal intensity facilitates peripheral nerve regeneration in rats through suppression of pro-inflammatory and nerve growth inhibitor gene expression. PLoS One 2020; 15:e0234691. [PMID: 32555658 PMCID: PMC7299378 DOI: 10.1371/journal.pone.0234691] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 05/29/2020] [Indexed: 02/07/2023] Open
Abstract
Background Therapeutic ultrasound (US) is a promising physical therapy modality for peripheral nerve regeneration. However, it is necessary to identify the most effective US parameters and clarify the underlying mechanisms before its clinical application. The intensity of US is one of the most important parameters. However, the optimum intensity for the promotion of peripheral nerve regeneration has yet to be determined. Objectives To identify the optimum intensity of US necessary for the promotion of peripheral nerve regeneration after crush injuries in rats and to clarify the underlying mechanisms of US by mRNA expression analysis. Methods We inflicted sciatic nerve crush injuries on adult Lewis rats and performed ultrasound irradiation using 4 different US intensities: 0 (sham stimulation), 30, 140, and 250 mW/cm2 with frequency (5 days/week) and duration (5 min/day). We evaluated peripheral nerve regeneration by quantitative real-time PCR one week after injury. Histomorphometric analyses and motor function analysis were evaluated 3 weeks after injury. Results US stimulation enhanced re-myelination as well as sprouting of axons, especially at an intensity of 140 mW/cm2. mRNA expression revealed that US suppressed the expression of the inflammatory cytokines TNF and IL-6 and the axonal growth inhibitors SEMA3A and GSK3β. Conclusions An intensity of 140 mW/cm2 was optimal to support regeneration of the sciatic nerve after a crush injury in rats by, in part, the suppression of pro-inflammatory and nerve growth inhibitor gene expression.
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Affiliation(s)
- Akira Ito
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tianshu Wang
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Ryo Nakahara
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hideki Kawai
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kohei Nishitani
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tomoki Aoyama
- Department of Development and Rehabilitation of Motor Function, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroshi Kuroki
- Department of Motor Function Analysis, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- * E-mail:
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Zhao Z, Qu L, Shuang T, Wu S, Su Y, Lu F, Wang D, Chen B, Hao Q. Low-intensity ultrasound radiation increases exosome yield for efficient drug delivery. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101713] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Horne DA, Jones PD, Adams MS, Lotz JC, Diederich CJ. LIPUS far-field exposimetry system for uniform stimulation of tissues in-vitro: development and validation with bovine intervertebral disc cells. Biomed Phys Eng Express 2020; 6:035033. [PMID: 33438678 DOI: 10.1088/2057-1976/ab8b26] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Therapeutic Low-intensity Pulsed Ultrasound (LIPUS) has been applied clinically for bone fracture healing and has been shown to stimulate extracellular matrix (ECM) metabolism in numerous soft tissues including intervertebral disc (IVD). In-vitro LIPUS testing systems have been developed and typically include polystyrene cell culture plates (CCP) placed directly on top of the ultrasound transducer in the acoustic near-field (NF). This configuration introduces several undesirable acoustic artifacts, making the establishment of dose-response relationships difficult, and is not relevant for targeting deep tissues such as the IVD, which may require far-field (FF) exposure from low frequency sources. The objective of this study was to design and validate an in-vitro LIPUS system for stimulating ECM synthesis in IVD-cells while mimicking attributes of a deep delivery system by delivering uniform, FF acoustic energy while minimizing reflections and standing waves within target wells, and unwanted temperature elevation within target samples. Acoustic field simulations and hydrophone measurements demonstrated that by directing LIPUS energy at 0.5, 1.0, or 1.5 MHz operating frequency, with an acoustic standoff in the FF (125-350 mm), at 6-well CCP targets including an alginate ring spacer, uniform intensity distributions can be delivered. A custom FF LIPUS system was fabricated and demonstrated reduced acoustic intensity field heterogeneity within CCP-wells by up to 93% compared to common NF configurations. When bovine IVD cells were exposed to LIPUS (1.5 MHz, 200 μs pulse, 1 kHz pulse frequency, and ISPTA = 120 mW cm-2) using the FF system, sample heating was minimal (+0.81 °C) and collagen content was increased by 2.6-fold compared to the control and was equivalent to BMP-7 growth factor treatment. The results of this study demonstrate that FF LIPUS exposure increases collagen content in IVD cells and suggest that LIPUS is a potential noninvasive therapeutic for stimulating repair of tissues deep within the body such as the IVD.
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Affiliation(s)
- Devante A Horne
- Department of Orthopaedic Surgery, University of California, San Francisco, United States of America. The UC Berkeley-UCSF Graduate Program in Bioengineering, University of California, Berkeley, and University of California, San Francisco, United States of America. Thermal Therapy Research Group, Radiation Oncology Department, University of California, San Francisco, United States of America
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Leite CBG, Demange MK. BIOLOGICAL ENHANCEMENTS FOR ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION. ACTA ORTOPEDICA BRASILEIRA 2019; 27:325-330. [PMID: 31798325 PMCID: PMC6870547 DOI: 10.1590/1413-785220192706226481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 08/01/2019] [Indexed: 02/06/2023]
Abstract
The anterior cruciate ligament (ACL) is mostly responsible for providing knee stability. ACL injury has a marked effect on daily activities, causing pain, dysfunction, and elevated healthcare costs. ACL reconstruction (ACLR) is the standard treatment for this injury. However, despite good results, ACLR is associated with a significant rate of failure. In this context, the mechanical and biological causes must be considered. From a biological perspective, the ACLR depends on the osseointegration of the graft in the adjacent bone and the process of intra-articular ligamentization for good results. Here, we discuss the mechanisms underlying the normal graft healing process after ACLR and its biological modulation, thus, presenting novel strategies for biological enhancements of the ACL graft. Level of evidence III, Systematic review of level III studies.
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Affiliation(s)
- Chilan Bou Ghosson Leite
- Universidade de São Paulo, Hospital das Clínicas, HCFMUSP, Faculdade de Medicina, Instituto de Ortopedia e Traumatologia, São Paulo, SP, Brazil
| | - Marco Kawamura Demange
- Universidade de São Paulo, Hospital das Clínicas, HCFMUSP, Faculdade de Medicina, Instituto de Ortopedia e Traumatologia, São Paulo, SP, Brazil
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Jiang X, Savchenko O, Li Y, Qi S, Yang T, Zhang W, Chen J. A Review of Low-Intensity Pulsed Ultrasound for Therapeutic Applications. IEEE Trans Biomed Eng 2019; 66:2704-2718. [DOI: 10.1109/tbme.2018.2889669] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Wang J, Lai B, Nanayakkara G, Yang Q, Sun Y, Lu Y, Shao Y, Yu D, Yang WY, Cueto R, Fu H, Zeng H, Shen W, Wu S, Zhang C, Liu Y, Choi ET, Wang H, Yang X. Experimental Data-Mining Analyses Reveal New Roles of Low-Intensity Ultrasound in Differentiating Cell Death Regulatome in Cancer and Non-cancer Cells via Potential Modulation of Chromatin Long-Range Interactions. Front Oncol 2019; 9:600. [PMID: 31355136 PMCID: PMC6640725 DOI: 10.3389/fonc.2019.00600] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/18/2019] [Indexed: 12/17/2022] Open
Abstract
Background: The mechanisms underlying low intensity ultrasound (LIUS) mediated suppression of inflammation and tumorigenesis remain poorly determined. Methods: We used microarray datasets from NCBI GEO Dataset databases and conducted a comprehensive data mining analyses, where we studied the gene expression of 299 cell death regulators that regulate 13 different cell death types (cell death regulatome) in cells treated with LIUS. Results: We made the following findings: (1) LIUS exerts a profound effect on the expression of cell death regulatome in cancer cells and non-cancer cells. Of note, LIUS has the tendency to downregulate the gene expression of cell death regulators in non-cancer cells. Most of the cell death regulator genes downregulated by LIUS in non-cancer cells are responsible for mediating inflammatory signaling pathways; (2) LIUS activates different cell death transcription factors in cancer and non-cancer cells. Transcription factors TP-53 and SRF- were induced by LIUS exposure in cancer cells and non-cancer cells, respectively; (3) As two well-accepted mechanisms of LIUS, mild hyperthermia and oscillatory shear stress induce changes in the expression of cell death regulators, therefore, may be responsible for inducing LIUS mediated changes in gene expression patterns of cell death regulators in cells; (4) LIUS exposure may change the redox status of the cells. LIUS may induce more of antioxidant effects in non-cancer cells compared to cancer cells; and (5) The genes modulated by LIUS in cancer cells have distinct chromatin long range interaction (CLRI) patterns to that of non-cancer cells. Conclusions: Our analysis suggests novel molecular mechanisms that may be utilized by LIUS to induce tumor suppression and inflammation inhibition. Our findings may lead to development of new treatment protocols for cancers and chronic inflammation.
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Affiliation(s)
- Jiwei Wang
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Ultrasound, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bin Lai
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Gayani Nanayakkara
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Qian Yang
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Yu Sun
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Yifan Lu
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Ying Shao
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Daohai Yu
- Department of Clinical Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - William Y. Yang
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Ramon Cueto
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Hangfei Fu
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Huihong Zeng
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Wen Shen
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Susu Wu
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Chunquan Zhang
- Department of Ultrasound, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yanna Liu
- Department of Ultrasound, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Eric T. Choi
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Division of Vascular and Endovascular Surgery, Department of Surgery, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, United States
| | - Hong Wang
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
| | - Xiaofeng Yang
- Department of Pharmacology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Microbiology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
- Department of Immunology, Centers for Metabolic Disease Research, Inflammation, Translational and Clinical Lung Research, Cardiovascular Research, Thrombosis Research, Philadelphia, PA, United States
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Fontana F, Iberite F, Morchi L, Pratellesi T, Cafarelli A, Ricotti L. Highly controlled and usable system for Low-Intensity Pulsed Ultrasound Stimulation of Cells. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2019; 2019:2513-2516. [PMID: 31946408 DOI: 10.1109/embc.2019.8857772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work aims to describe the design and development of an in vitro highly controlled ultrasonic stimulation system able to guarantee, at the same time, high usability and full sterility of the tested samples. After creating the first prototype of an ultrasound-transparent three-chambers culture well, sealing tests were conducted to prove its impermeability to external contaminants and in vitro tests were carried out to verify the usability of this system for ultrasonic stimulation of cells in vitro. No statistically significant differences were found between control and tested samples during sealing tests, thus demonstrating optimal sealing ability towards external contaminants. Furthermore, the thin polystyrene membrane used to guarantee US-transparency guaranteed a good adhesion and viability of both human fibroblasts and induced pluripotent stem cells.
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Hidaka K, Mikuni-Takagaki Y, Wada-Takahashi S, Saita M, Kawamata R, Sato T, Kawata A, Miyamoto C, Maehata Y, Watabe H, Tani-Ishii N, Hamada N, Takahashi SS, Deguchi S, Takeuchi R. Low-Intensity Pulsed Ultrasound Prevents Development of Bisphosphonate-Related Osteonecrosis of the Jaw-Like Pathophysiology in a Rat Model. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:1721-1732. [PMID: 31006496 DOI: 10.1016/j.ultrasmedbio.2019.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/21/2018] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
We developed a rat model of bisphosphonate-related osteonecrosis of the jaw (BRONJ) by removing a maxillary molar tooth (M1) from ovariectomized rats after treatment with alendronate. To mimic periodontitis, some of the rats were administered Porphyromonas gingivalis (p. gingivalis) at the M1 site every 2 to 3 d for 2 wk. Rats pretreated with alendronate plus p. gingivalis showed delayed healing of socket epithelia, periosteal reaction of alveolar bone formation and lower bone mineral density in the alveolus above adjacent M2 teeth. These abnormalities were prevented by tooth socket exposure to 20 min/d low-intensity pulsed ultrasound (LIPUS), which restored diminished expression of RANKL, Bcl-2, IL-6, Hsp70, NF-κB and TNF-α messenger ribonucleic acids in remote bone marrow, suggesting LIPUS prevented development of BRONJ-like pathophysiology in rat by inducing systemic responses for regeneration, in addition to accelerating local healing. Non-invasive treatment by LIPUS, as well as low-level laser therapy, may be useful for medication-related osteonecrosis of the jaw patients.
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Affiliation(s)
- Kouki Hidaka
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yuko Mikuni-Takagaki
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan.
| | - Satoko Wada-Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Makiko Saita
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryota Kawamata
- Department of Dentomaxillofacial Diagnosis and Treatment, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Takenori Sato
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Akira Kawata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Chihiro Miyamoto
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Yojiro Maehata
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Hirotaka Watabe
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobuyuki Tani-Ishii
- Department of Oral Interdisciplinary Medicine, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Nobushiro Hamada
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shun-Suke Takahashi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Shinji Deguchi
- Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan
| | - Ryohei Takeuchi
- Department of Oral Science, Kanagawa Dental University Graduate School of Dentistry, Yokosuka, Japan; Joint Surgery Center, Kawasaki Saiwai Hospital, Kawasaki, Japan
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Zeng Q, Hong S, Wang X, Cheng Y, Sun J, Xia W. Regulation of exosomes secretion by low-intensity pulsed ultrasound in lung cancer cells. Exp Cell Res 2019; 383:111448. [PMID: 31152706 DOI: 10.1016/j.yexcr.2019.05.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 01/06/2023]
Abstract
Low-intensity pulsed ultrasound (LIPUS) is a noninvasive therapeutic method which gradually being used in clinic including cancers. Exosomes mediate intercellular communication functions in disease development and the potential clinical applications in diagnosis and therapy. However, few studies have discussed the relationship between LIPUS and exosomes. Herein, we show that low intensity (0.6-2.1 W/cm2 or 0.6-3.4 W/cm2) LIPUS promoted exosomes secretion whereas higher intensity (3.4-5.0 W/cm2 or 5.0 W/cm2) LIPUS inhibited exosomes secretion, and this phenomenon is associated with autophagy. Pretreatment with 3-MA or down-regulation of LC3 potentiated low intensity LIPUS's promotion of exosomes secretion and conferred resistance to higher intensity LIPUS's effects on exosomes secretion. Furthermore, pretreatment with PP242 attenuated LIPUS-influenced exosomes secretion while expression of constitutively active Akt (Ad-myr-Akt) elevated LIPUS-influenced exosomes secretion, implying mTOR-dependent mechanism involved. The findings indicate that LIPUS influences exosomes secretion by targeting mTOR-mediated LC3 signaling in SPC-A1 and SPC-A1-BM cells. Our data provided initial evidence to connect LIPUS and secretion of exosomes, and highlight that LIPUS may be exploited in exosome-related diseases.
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Affiliation(s)
- Qingyu Zeng
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, China
| | - Shibin Hong
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, China
| | - Xue Wang
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, West Huaihai Road 241, Shanghai, 20030, China
| | - Yirui Cheng
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, China
| | - Junfeng Sun
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, China.
| | - Weiliang Xia
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Huashan Road 1954, Shanghai, 200030, China.
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Suganthirababu P, Alagesan J, Prathap L, Manikumar M, Kumaresan A, Banu N. Action of Ultrasound Therapy in Altering Motor Nerve Conduction Velocity of Ulnar Nerve. ACTA ACUST UNITED AC 2019. [DOI: 10.13005/bpj/1708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ultrasound therapy is one of the commonest and most popular modality used for tissue healing, pain reduction, tissue extensibility and in inflammation by physiotherapists all around the globe. Various sensitivity tests on peripheral nerves are done with ultrasound therapy, yet conclusions are still skeptical, which makes it inconclusive in progressing the modality further into management of nerve disorders. This study aimed to analyze efficiency of therapeutic ultrasound in influencing ulnar nerve conduction velocity. To Analyze the effect of ultrasound therapy in altering motor nerve conduction velocity of ulnar nerve with two therapeutic frequencies. 40 healthy individuals were included according to the selection criteria and they were explained about safety and simplicity of procedure and informed consent was obtained. All the participants were randomly assigned into two groups as 20 in each group. Group-A was given ultrasound therapy at specific site of elbow to target the ulnar nerve with 1MHz frequency and Group–B followed the same procedure with 3MHz frequency. Pre and Post to ultrasound therapy application Motor Nerve Conduction Velocity (MNCV) of ulnar nerve were recorded for both the groups. The posttest mean of MNCV for forearm segment and arm segment for Group A and Group B showed statistically significant difference (P Value <0.001).The analysis done by the statistical data also revealed that the MNCV at forearm segment showed an increase in velocity compared to its pretest values, whereas the post MNCV values at arm component showed a decrease in velocity when compared to its pretest values. Among comparison the data within the groups it is evident that group A with 1 MHz of ultrasound sonification is more capable of altering the MNCV values in comparison with the 3MHz. frequency. Findings of this study conclude that ultrasound therapy can be used effectively in altering conduction velocity of a nerve and it has a potential ability to facilitate or inhibit a nerve physiological function.
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Affiliation(s)
| | | | - Lavanya Prathap
- College of Health Sciences, Gulf Medical University, Ajman, UAE
| | - M. Manikumar
- Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - A. Kumaresan
- Saveetha Institute of Medical and Technical Sciences, Chennai, India
| | - Naseema Banu
- Saveetha Institute of Medical and Technical Sciences, Chennai, India
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Cisowska-Adamiak M, Mackiewicz-Milewska M, Szymkuć-Bukowska I, Hagner W, Beuth W. Ultrasound therapy: Dose-dependent effects in LBP treatment. J Back Musculoskelet Rehabil 2019; 32:339-343. [PMID: 30412479 DOI: 10.3233/bmr-170926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Low back pain (LBP) affects most people at least once in their lives. OBJECTIVE To evaluate the efficacy of ultrasound therapy (UD) in patients with LBP receiving two different treatment dosages. METHODS The study design was a randomized prospective study. Patients were subjected to UD for two weeks. All persons in the study were evaluated at the Outpatient Rehabilitation Clinic at the Antoni Jurasz University Hospital in Bydgoszcz, Poland. Inclusion criteria were lumbosacral pain lasting more than 8 weeks, signs of osteoarthritis on imaging studies, and ages30-65 years. Exclusion criteria were radicular pain, nonmechanical causes of pain, contraindications for UD, or the patient received other LBP therapy during the study. The Oswestry Disability Index (ODI), Roland-Morris Disability Questionnaire (RM), and Visual Analog Scale (VAS) were used to evaluate the results. RESULTS For both groups, the ODI scores were significantly reduced by 13.7% and 8.84%, the RM scores decreased by 3.37 points and 3.59 points, and pain remissions on the VAS scale were 20.28 mm and 16.31 mm (p< 0.05). CONCLUSION UD decreased patients' disability levels and pain intensity. However, effective ultrasound parameters must be determined because of the wide dosage variations.
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Affiliation(s)
| | | | - Iwona Szymkuć-Bukowska
- Department of Rehabilitation, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Wojciech Hagner
- Department of Rehabilitation, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Wojciech Beuth
- Department of Neurosurgery, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
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Postoperative Physiotherapy After Open Temporomandibular Joint Surgery: A 3-Step Program. J Oral Maxillofac Surg 2019; 77:932-950. [DOI: 10.1016/j.joms.2018.12.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 12/24/2018] [Accepted: 12/24/2018] [Indexed: 11/30/2022]
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