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Zeng CH, Kang JM, Kim SH, Park Y, Shim S, Kim DK, Shin JH, Park JH. EW-7197, transforming growth factor β inhibitor, combined with irreversible electroporation for improving skin wound in a rat excisional model. Sci Rep 2024; 14:12779. [PMID: 38834729 PMCID: PMC11150421 DOI: 10.1038/s41598-024-61003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/30/2024] [Indexed: 06/06/2024] Open
Abstract
To evaluate the safety and efficacy of combining EW-7197 with irreversible electroporation (IRE) for improving wound healing, 16 male Sprague-Dawley rats were randomly divided into four groups of four rats each after dorsal excisional wound induction: sham control group; oral administration of EW-7197 for 7 days group; one-time application of IRE group; and one-time application of IRE followed by oral administration of EW-7197 for 7 days group. Measurement of wound closure rate, laser Doppler scanning, histological staining (hematoxylin and eosin and Masson's trichrome), and immunohistochemical analyses (Ki-67 and α-SMA) were performed to evaluate the efficacy. Fifteen of 16 rats survived throughout the study. Statistically significant differences in wound closure rates were observed between the combination therapy group and the other three groups (all P < 0.05). The degrees of inflammation, α-SMA, and Ki-67 were reduced in the EW-7197 and IRE monotherapy groups; however, not statistically significant. The fibrosis score exhibited significant reduction in all three treatment groups, with the most prominent being in the combination therapy group. This study concludes that oral administration of EW-7197 combined with IRE demonstrated effectiveness in improving skin wound in a rat excisional model and may serve as a potential alternative for promoting healing outcomes.
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Affiliation(s)
- Chu Hui Zeng
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Jeon Min Kang
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Song Hee Kim
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Yubeen Park
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Soyeon Shim
- EWHA DrugDesignHouse, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Republic of Korea
| | - Dae-Kee Kim
- EWHA DrugDesignHouse, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul, 03760, Republic of Korea
| | - Ji Hoon Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
| | - Jung-Hoon Park
- Biomedical Engineering Research Center, Asan Institute for Life Sciences, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
- Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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Berry-Kilgour C, Wise L, King J, Oey I. Application of pulsed electric field technology to skin engineering. Front Bioeng Biotechnol 2024; 12:1386725. [PMID: 38689761 PMCID: PMC11058833 DOI: 10.3389/fbioe.2024.1386725] [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: 02/15/2024] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
Tissue engineering encompasses a range of techniques that direct the growth of cells into a living tissue construct for regenerative medicine applications, disease models, drug discovery, and safety testing. These techniques have been implemented to alleviate the clinical burdens of impaired healing of skin, bone, and other tissues. Construct development requires the integration of tissue-specific cells and/or an extracellular matrix-mimicking biomaterial for structural support. Production of such constructs is generally expensive and environmentally costly, thus eco-sustainable approaches should be explored. Pulsed electric field (PEF) technology is a nonthermal physical processing method commonly used in food production and biomedical applications. In this review, the key principles of PEF and the application of PEF technology for skin engineering will be discussed, with an emphasis on how PEF can be applied to skin cells to modify their behaviour, and to biomaterials to assist in their isolation or sterilisation, or to modify their physical properties. The findings indicate that the success of PEF in tissue engineering will be reliant on systematic evaluation of key parameters, such as electric field strength, and their impact on different skin cell and biomaterial types. Linking tangible input parameters to biological responses critical to healing will assist with the development of PEF as a sustainable tool for skin repair and other tissue engineering applications.
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Affiliation(s)
- C. Berry-Kilgour
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - L. Wise
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - J. King
- Department of Food Sciences, University of Otago, Dunedin, New Zealand
- Riddet Institute, Palmerston North, New Zealand
| | - I. Oey
- Department of Food Sciences, University of Otago, Dunedin, New Zealand
- Riddet Institute, Palmerston North, New Zealand
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3
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Gabay B, Levkov K, Berl A, Wise J, Shir-Az O, Vitkin E, Saulis G, Shalom A, Golberg A. Electroporation-Based Biopsy Treatment Planning with Numerical Models and Tissue Phantoms. Ann Biomed Eng 2024; 52:71-88. [PMID: 37154990 DOI: 10.1007/s10439-023-03208-y] [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: 02/01/2023] [Accepted: 04/10/2023] [Indexed: 05/10/2023]
Abstract
Molecular sampling with vacuum-assisted tissue electroporation is a novel, minimally invasive method for molecular profiling of solid lesions. In this paper, we report on the design of the battery-powered pulsed electric field generator and electrode configuration for an electroporation-based molecular sampling device for skin cancer diagnostics. Using numerical models of skin electroporation corroborated by the potato tissue phantom model, we show that the electroporated tissue volume, which is the maximum volume for biomarker sampling, strongly depends on the electrode's geometry, needle electrode skin penetration depths, and the applied pulsed electric field protocol. In addition, using excised human basal cell carcinoma (BCC) tissues, we show that diffusion of proteins out of human BCC tissues into water strongly depends on the strength of the applied electric field and on the time after the field application. The developed numerical simulations, confirmed by experiments in potato tissue phantoms and excised human cancer lesions, provide essential tools for the development of electroporation-based molecular markers sampling devices for personalized skin cancer diagnostics.
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Affiliation(s)
- Batel Gabay
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Klimentiy Levkov
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Ariel Berl
- Department of Plastic Surgery, Meir Medical Center, Kfar Sava, Israel
| | - Julia Wise
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Ofir Shir-Az
- Department of Plastic Surgery, Meir Medical Center, Kfar Sava, Israel
| | - Edward Vitkin
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Gintautas Saulis
- Faculty of Natural Sciences, Vytautas Magnus University, Kaunas, Lithuania
| | - Avshalom Shalom
- Department of Plastic Surgery, Meir Medical Center, Kfar Sava, Israel
| | - Alexander Golberg
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel.
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Vitkin E, Singh A, Wise J, Ben-Elazar S, Yakhini Z, Golberg A. Nondestructive protein sampling with electroporation facilitates profiling of spatial differential protein expression in breast tumors in vivo. Sci Rep 2022; 12:15835. [PMID: 36151122 PMCID: PMC9508265 DOI: 10.1038/s41598-022-19984-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: 04/16/2022] [Accepted: 09/07/2022] [Indexed: 11/26/2022] Open
Abstract
Excision tissue biopsy, while central to cancer treatment and precision medicine, presents risks to the patient and does not provide a sufficiently broad and faithful representation of the heterogeneity of solid tumors. Here we introduce e-biopsy—a novel concept for molecular profiling of solid tumors using molecular sampling with electroporation. As e-biopsy provides access to the molecular composition of a solid tumor by permeabilization of the cell membrane, it facilitates tumor diagnostics without tissue resection. Furthermore, thanks to its non tissue destructive characteristics, e-biopsy enables probing the solid tumor multiple times in several distinct locations in the same procedure, thereby enabling the spatial profiling of tumor molecular heterogeneity.We demonstrate e-biopsy in vivo, using the 4T1 breast cancer model in mice to assess its performance, as well as the inferred spatial differential protein expression. In particular, we show that proteomic profiles obtained via e-biopsy in vivo distinguish the tumors from healthy breast tissue and reflect spatial tumor differential protein expression. E-biopsy provides a completely new molecular sampling modality for solid tumors molecular cartography, providing information that potentially enables more rapid and sensitive detection at lesser risk, as well as more precise personalized medicine.
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Affiliation(s)
- Edward Vitkin
- School of Computer Science, Reichman University (IDC Herzliya), Herzliya, Israel
| | - Amrita Singh
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Julia Wise
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shay Ben-Elazar
- School of Computer Science, Reichman University (IDC Herzliya), Herzliya, Israel
| | - Zohar Yakhini
- School of Computer Science, Reichman University (IDC Herzliya), Herzliya, Israel. .,Computer Science Faculty, Technion, Haifa, Israel.
| | - Alexander Golberg
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel.
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Gao X, Zhang Y, Han X, Li Z, Chen B, Li Q, Hu L, Lv Y, Ren F. Numerical analysis and animal study of noninvasive handheld electroporation delivery device for skin superficial lesion treatment. Int J Hyperthermia 2022; 39:1017-1025. [PMID: 35912525 DOI: 10.1080/02656736.2022.2104937] [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: 10/16/2022] Open
Abstract
INTRODUCTION This study aims to investigate the feasibility of a noninvasive handheld electroporation pulses delivery device (EPDD) for electroporation-based treatment (EBT) of skin superficial lesions through numerical analysis and animal study. METHODS Finite element analysis was performed to investigate the performance of the EPDD. The electric field, temperature, EI and TI were calculated under pulse voltages of 600, 800, and 1000 V. A mouse subcutaneous tumor model was established to evaluate the performance of the EPDD through histopathology and survival analyses. RESULTS The electrical field strength increased from 151 (600 V) to 252 V/cm (1000 V) in the skin and from 1302 (600 V) to 2171 V/cm (1000 V) in the tumor. The volume of EI grew and reached a plateau at the 165th pulse, whereas the maximum volume of EI increased with higher voltage. The growth tendency of TI differed between groups, and it was higher in the high-voltage group (HVG) than in the low-voltage group. Histopathological analysis showed that the depth and range of the ablation area could be controlled by adjusting pulse voltage. Survival analysis showed that the survival of the HVG was better than that of the low-voltage and the control group (p < 0.01). CONCLUSIONS The results demonstrate that the EPDD is feasible, safe, and effective for skin EBT. The volume of EP tissue injury can be controlled by adjusting the pulse voltage, pulse number, and other parameters. The proposed noninvasive handheld EPDD can be a potential therapeutic tool for EBT of superficial skin lesions in the future.
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Affiliation(s)
- Xuyao Gao
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Yuchi Zhang
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Electrical Science and Technology Research Institute, Xi'an Jiaotong University, Xi'an, China
| | - Xuan Han
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhuoqun Li
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bowen Chen
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Qingshan Li
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Liangshuo Hu
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yi Lv
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Fenggang Ren
- National Local Joint Engineering Research Center for Precision Surgery and Regenerative Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Hepatobiliary Surgery, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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6
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Gouarderes S, Ober C, Doumard L, Dandurand J, Vicendo P, Fourquaux I, Golberg A, Samouillan V, Gibot L. Pulsed electric fields induce extracellular matrix remodeling through MMPs activation and decreased collagen production. J Invest Dermatol 2021; 142:1326-1337.e9. [PMID: 34688615 DOI: 10.1016/j.jid.2021.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 09/10/2021] [Accepted: 09/28/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Sara Gouarderes
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Camille Ober
- CIRIMAT UMR 5085, Université de Toulouse, Université Toulouse III - Paul Sabatier, France
| | - Layal Doumard
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Jany Dandurand
- CIRIMAT UMR 5085, Université de Toulouse, Université Toulouse III - Paul Sabatier, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France
| | - Isabelle Fourquaux
- Centre de Microscopie Électronique Appliquée à la Biologie, CMEAB, 133 route de Narbonne, 31062 Toulouse, France
| | - Alexander Golberg
- Porter School of Environment and Earth Sciences Studies, Tel Aviv University, Tel Aviv, Israel
| | - Valérie Samouillan
- CIRIMAT UMR 5085, Université de Toulouse, Université Toulouse III - Paul Sabatier, France
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, France.
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7
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Wu M, Rubin AE, Dai T, Schloss R, Usta OB, Golberg A, Yarmush M. High-Voltage, Pulsed Electric Fields Eliminate Pseudomonas aeruginosa Stable Infection in a Mouse Burn Model. Adv Wound Care (New Rochelle) 2021; 10:477-489. [PMID: 33066719 DOI: 10.1089/wound.2019.1147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Objective: The incidence of severe infectious complications after burn injury increases mortality by 40%. However, traditional approaches for managing burn infections are not always effective. High-voltage, pulsed electric field (PEF) treatment shortly after a burn injury has demonstrated an antimicrobial effect in vivo; however, the working parameters and long-term effects of PEF treatment have not yet been investigated. Approach: Nine sets of PEF parameters were investigated to optimize the applied voltage, pulse duration, and frequency or pulse repetition for disinfection of Pseudomonas aeruginosa infection in a stable mouse burn wound model. The bacterial load after PEF administration was monitored for 3 days through bioluminescence imaging. Histological assessments and inflammation response analyses were performed at 1 and 24 h after the therapy. Results: Among all tested PEF parameters, the best disinfection efficacy of P. aeruginosa infection was achieved with a combination of 500 V, 100 μs, and 200 pulses delivered at 3 Hz through two plate electrodes positioned 1 mm apart for up to 3 days after the injury. Histological examinations revealed fewer inflammatory signs in PEF-treated wounds compared with untreated infected burns. Moreover, the expression levels of multiple inflammatory-related cytokines (interleukin [IL]-1α/β, IL-6, IL-10, leukemia inhibitory factor [LIF], and tumor necrosis factor-alpha [TNF-α]), chemokines (macrophage inflammatory protein [MIP]-1α/β and monocyte chemoattractant protein-1 [MCP-1]), and inflammation-related factors (vascular endothelial growth factor [VEGF], macrophage colony-stimulating factor [M-CSF], and granulocyte-macrophage colony-stimulating factor [G-CSF]) were significantly decreased in the infected burn wound after PEF treatment. Innovation: We showed that PEF treatment on infected wounds reduces the P. aeruginosa load and modulates inflammatory responses. Conclusion: The data presented in this study suggest that PEF treatment is a potent candidate for antimicrobial therapy for P. aeruginosa burn infections.
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Affiliation(s)
- Mengjie Wu
- Department of Orthodontics, The Affiliated Stomatology Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Center of Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Andrey Ethan Rubin
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Tianhong Dai
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Vaccine and Immunotherapy Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Rene Schloss
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Osman Berk Usta
- Center of Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Alexander Golberg
- Porter School of Environment and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Martin Yarmush
- Center of Engineering in Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
- Shriners Burn Hospital for Children, Boston, Massachusetts, USA
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Lopez-Ichikawa M, Vu NK, Nijagal A, Rubinsky B, Chang TT. Neutrophils are important for the development of pro-reparative macrophages after irreversible electroporation of the liver in mice. Sci Rep 2021; 11:14986. [PMID: 34294763 PMCID: PMC8298444 DOI: 10.1038/s41598-021-94016-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/22/2021] [Indexed: 12/14/2022] Open
Abstract
Irreversible electroporation (IRE) is a non-thermal tissue ablative technology that has emerging applications in surgical oncology and regenerative surgery. To advance its therapeutic usefulness, it is important to understand the mechanisms through which IRE induces cell death and the role of the innate immune system in mediating subsequent regenerative repair. Through intravital imaging of the liver in mice, we show that IRE produces distinctive tissue injury features, including delayed yet robust recruitment of neutrophils, consistent with programmed necrosis. IRE treatment converts the monocyte/macrophage balance from pro-inflammatory to pro-reparative populations, and depletion of neutrophils inhibits this conversion. Reduced generation of pro-reparative Ly6CloF4/80hi macrophages correlates with lower numbers of SOX9+ hepatic progenitor cells in areas of macrophage clusters within the IRE injury zone. Our findings suggest that neutrophils play an important role in promoting the development of pro-reparative Ly6Clo monocytes/macrophages at the site of IRE injury, thus establishing conditions of regenerative repair.
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Affiliation(s)
- Maya Lopez-Ichikawa
- Department of Surgery, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Ngan K Vu
- Department of Surgery, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Amar Nijagal
- Department of Surgery, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA
| | - Boris Rubinsky
- Department of Mechanical Engineering, University of California, Berkeley, 6124 Etcheverry Hall, Berkeley, CA, 94720, USA
| | - Tammy T Chang
- Department of Surgery, University of California, San Francisco, 513 Parnassus Avenue, San Francisco, CA, 94143, USA.
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Jiang TX, Li A, Lin CM, Chiu C, Cho JH, Reid B, Zhao M, Chow RH, Widelitz RB, Chuong CM. Global feather orientations changed by electric current. iScience 2021; 24:102671. [PMID: 34179734 PMCID: PMC8214094 DOI: 10.1016/j.isci.2021.102671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/18/2021] [Accepted: 05/27/2021] [Indexed: 12/17/2022] Open
Abstract
During chicken skin development, each feather bud exhibits its own polarity, but a population of buds organizes with a collective global orientation. We used embryonic dorsal skin, with buds aligned parallel to the rostral-caudal body axis, to explore whether exogenous electric fields affect feather polarity. Interestingly, brief exogenous current exposure prior to visible bud formation later altered bud orientations. Applying electric pulses perpendicular to the body rostral-caudal axis realigned bud growth in a collective swirl, resembling an electric field pointing toward the anode. Perturbed buds show normal molecular expression and morphogenesis except for their altered orientation. Epithelial-mesenchymal recombination demonstrates the effects of exogenous electric fields are mediated through the epithelium. Small-molecule channel inhibitor screens show Ca2+ channels and PI3 Kinase are involved in controlling feather bud polarity. This work reveals the importance of bioelectricity in organ development and regeneration and provides an explant culture platform for experimentation.
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Affiliation(s)
- Ting-Xin Jiang
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
| | - Ang Li
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
| | - Chih-Min Lin
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
| | - Cathleen Chiu
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
| | - Jung-Hwa Cho
- Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Brian Reid
- Department of Ophthalmology & Vision Science, and Department of Dermatology, University of California, Davis, Sacramento, CA 95816, USA
| | - Min Zhao
- Department of Ophthalmology & Vision Science, and Department of Dermatology, University of California, Davis, Sacramento, CA 95816, USA
| | - Robert H. Chow
- Department of Physiology and Biophysics, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Randall Bruce Widelitz
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
| | - Cheng-Ming Chuong
- Department of Pathology, Keck School of Medicine, University of Southern California, 2011 Zonal Avenue, Los Ángeles, CA 90033, USA
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10
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Goswami I, Bielitz R, Verbridge SS, von Spakovsky MR. A thermodynamic scaling law for electrically perturbed lipid membranes: Validation with steepest entropy ascent framework. Bioelectrochemistry 2021; 140:107800. [PMID: 33910115 DOI: 10.1016/j.bioelechem.2021.107800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/20/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
Experimental evidence has demonstrated the ability of transient pulses of electric fields to alter mammalian cell behavior. Strategies with these pulsed electric fields (PEFs) have been developed for clinical applications in cancer therapeutics, in-vivo decellularization, and tissue regeneration. Successful implementation of these strategies involve understanding how PEFs impact the cellular structures and, hence, cell behavior. The caveat, however, is that the PEF parameter space (i.e., comprising different pulse widths, amplitudes, number of pulses) is large, and design of experiments to explore all possible combinations of pulse parameters is prohibitive from a cost and time standpoint. In this study, a scaling law based on the Ising model is introduced to understand the impact of PEFs on the outer cell lipid membrane so that an understanding developed in one PEF pulse regime may be extended to another. Combining non-Markovian Monte Carlo techniques to determine density-of-states with a novel non-equilibrium thermodynamic framework based on the principle of steepest entropy ascent, the applicability of this scaling model to predict the behavior of both thermally quenched and electrically perturbed lipid membranes is demonstrated. A comparison of the predictions made by the steepest-entropy-ascent quantum thermodynamic (SEAQT) framework to experimental data is performed to validate the robustness of this computational methodology and the resulting scaling law.
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Affiliation(s)
- Ishan Goswami
- Department of Bioengineering and California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA; Department of Material Science and Engineering, University of California, Berkeley, CA 94720, USA.
| | - Robert Bielitz
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061, USA
| | - Scott S Verbridge
- Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA 24061, USA
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Rojo RD, Perez JVD, Damasco JA, Yu G, Lin SC, Heralde FM, Novone NM, Santos EB, Lin SH, Melancon MP. Combinatorial effect of radium-223 and irreversible electroporation on prostate cancer bone metastasis in mice. Int J Hyperthermia 2021; 38:650-662. [PMID: 33882773 PMCID: PMC8495630 DOI: 10.1080/02656736.2021.1914873] [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: 02/03/2023] Open
Abstract
BACKGROUND Metastatic prostate cancer in bone is difficult to treat as the tumor cells are relatively resistant to hormonal or chemotherapies when compared to primary prostate cancer. Irreversible electroporation (IRE) is a minimally invasive ablation procedure that has potential applications in the management of prostate cancer in bone. However, a common limitation of IRE is tumor recurrence, which arises from incomplete ablation that allows remaining cancer cells to proliferate. In this study, we combined IRE with radium-223 (Ra-223), a bone-seeking radionuclide that emits short track length alpha particles and thus is associated with reduced damage to the bone marrow and evaluated the impact of the combination treatment on bone-forming prostate cancer tumors. METHODS The antitumor activity of IRE and Ra-223 as single agents and in combination was tested in vitro against three bone morphogenetic protein 4 (BMP4)-expressing prostate cancer cell lines (C4-2B-BMP4, Myc-CaP-BMP4, and TRAMP-C2-BMP4). Similar evaluation was performed in vivo using a bone-forming C4-2B-BMP4 tumor model in nude mice. RESULTS IRE and Ra-223 as monotherapy inhibited prostate cancer cell proliferation in vitro, and their combination resulted in significant reduction in cell viability compared to monotherapy. In vivo evaluation revealed that IRE with single-dose administration of Ra-233, compared to IRE alone, reduced the rate of tumor recurrence by 40% following initial apparent complete ablation and decreased the rate of proliferation of incompletely ablated tumor as quantified in Ki-67 staining (53.58 ± 16.0% for IRE vs. 20.12 ± 1.63%; for IRE plus Ra-223; p = 0.004). Histological analysis qualitatively showed the enhanced killing of tumor cells adjacent to bone by Ra-223 compared to those treated with IRE alone. CONCLUSION IRE in combination with Ra-223, which enhanced the destruction of cancer cells that are adjacent to bone, resulted in reduction of tumor recurrence through improved clearance of proliferative cells in the tumor region.
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Affiliation(s)
- Raniv D. Rojo
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States of America,College of Medicine, University of the Philippines Manila, Pedro Gil St., Ermita, Manila, National Capital Region 1000, Republic of the Philippines
| | - Joy Vanessa D. Perez
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States of America,College of Medicine, University of the Philippines Manila, Pedro Gil St., Ermita, Manila, National Capital Region 1000, Republic of the Philippines
| | - Jossana A. Damasco
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States of America
| | - Guoyu Yu
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, 77030, United States of America
| | - Song-Chang Lin
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, 77030, United States of America
| | - Francisco M. Heralde
- College of Medicine, University of the Philippines Manila, Pedro Gil St., Ermita, Manila, National Capital Region 1000, Republic of the Philippines
| | - Nora M. Novone
- Department of Genitourinary Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, 77030, United States of America
| | - Elmer B. Santos
- Department of Nuclear Medicine, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, 77030, United States of America
| | - Sue-Hwa Lin
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, 77030, United States of America,MD Anderson Cancer Center UT Health Graduate School of Biomedical Sciences, 6767 Bertner Ave., Houston, Texas, 77030, United States of America
| | - Marites P. Melancon
- Department of Interventional Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States of America,MD Anderson Cancer Center UT Health Graduate School of Biomedical Sciences, 6767 Bertner Ave., Houston, Texas, 77030, United States of America
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12
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Gouarderes S, Mingotaud AF, Vicendo P, Gibot L. Vascular and extracellular matrix remodeling by physical approaches to improve drug delivery at the tumor site. Expert Opin Drug Deliv 2020; 17:1703-1726. [PMID: 32838565 DOI: 10.1080/17425247.2020.1814735] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Modern comprehensive studies of tumor microenvironment changes allowed scientists to develop new and more efficient strategies that will improve anticancer drug delivery on site. The tumor microenvironment, especially the dense extracellular matrix, has a recognized capability to hamper the penetration of conventional drugs. Development and co-applications of strategies aiming at remodeling the tumor microenvironment are highly demanded to improve drug delivery at the tumor site in a therapeutic prospect. AREAS COVERED Increasing indications suggest that classical physical approaches such as exposure to ionizing radiations, hyperthermia or light irradiation, and emerging ones as sonoporation, electric field or cold plasma technology can be applied as standalone or associated strategies to remodel the tumor microenvironment. The impacts on vasculature and extracellular matrix remodeling of these physical approaches will be discussed with the goal to improve nanotherapeutics delivery at the tumor site. EXPERT OPINION Physical approaches to modulate vascular properties and remodel the extracellular matrix are of particular interest to locally control and improve drug delivery and thus increase its therapeutic index. They are particularly powerful as adjuvant to nanomedicine delivery; the development of these technologies could have extremely widespread implications for cancer treatment.[Figure: see text].
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Affiliation(s)
- Sara Gouarderes
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier , Toulouse, France
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier , Toulouse, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier , Toulouse, France
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier , Toulouse, France
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13
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Das B, Shrirao A, Golberg A, Berthiaume F, Schloss R, Yarmush ML. Differential Cell Death and Regrowth of Dermal Fibroblasts and Keratinocytes After Application of Pulsed Electric Fields. Bioelectricity 2020; 2:175-185. [PMID: 34471845 PMCID: PMC8370327 DOI: 10.1089/bioe.2020.0015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Background: High-powered pulsed electric fields (PEF) may be used for tissue debridement and disinfection, while lower PEF intensities may stimulate beneficial cellular responses for wound healing. We investigated the dual effects of nonuniform PEF on cellular death and stimulation. Methods: Dermal fibroblast or keratinocyte monolayers were exposed to PEF induced by two needle electrodes (2 mm apart). Voltages (100-600 V; 1 Hz; 70 micros pulse width; 90 pulses/cycle) were applied between the two electrodes. Controls consisted of similar monolayers subjected to a scratch mechanical injury. Results: Cell growth and closure of the cell-free gap was faster in PEF-treated cell monolayers versus scratched ones. Media conditioned from cells pre-exposed to PEF, when applied to responder cells, stimulated greater proliferation than media from scratched monolayers. Conclusions: PEF treatment causes the release of soluble factors that promote cell growth, and thus may play a role in the accelerated healing of wounds post PEF.
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Affiliation(s)
- Bodhisatwa Das
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Anil Shrirao
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Alexander Golberg
- Department of Environmental Studies, Tel Aviv University, Tel Aviv, Israel
| | - Francois Berthiaume
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Rene Schloss
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Martin L. Yarmush
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
- Center for Engineering in Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA
- Shriners Hospitals for Children, Boston, Massachusetts, USA
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14
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Dermol-Černe J, Pirc E, Miklavčič D. Mechanistic view of skin electroporation - models and dosimetry for successful applications: an expert review. Expert Opin Drug Deliv 2020; 17:689-704. [PMID: 32192364 DOI: 10.1080/17425247.2020.1745772] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Introduction: Skin electroporation is a promising treatment for transdermal drug delivery, gene electrotransfer, skin rejuvenation, electrochemotherapy, and wound disinfection. Although a considerable amount of in vitro and in vivo studies exists, the translation to clinics is not as fast as one would hope. We hypothesize the reason lies in the inadequate dosimetry, i.e. electrode configurations, pulse parameters, and pulse generators used. We suggest adequate dosimetry can be determined by mathematical modeling which would allow comparison of protocols and facilitate translation into clinics.Areas covered: We introduce the mechanisms and applications of skin electroporation, present existing mathematical models and compare the influence of different model parameters. We review electrodes and pulse generators, prototypes, as well as commercially available models.Expert opinion: The reasons for slow translation of skin electroporation treatments into clinics lie in uncontrolled and inadequate dosimetry, poor reporting rendering comparisons between studies difficult, and significant differences in animal and human skin morphology often dismissed in reports. Mathematical models enable comparison of studies, however, when the parameters of the pulses and electrode configuration are not adequately reported, as is often the case, comparisons are difficult, if not impossible. For each skin electroporation treatment, systematic studies determining optimal parameters should be performed and treatment parameters standardized.
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Affiliation(s)
- Janja Dermol-Černe
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Eva Pirc
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Damijan Miklavčič
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
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15
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A Laboratory IGBT-Based High-voltage Pulsed Electric Field Generator for Effective Water Diffusivity Enhancement in Chicken Meat. FOOD BIOPROCESS TECH 2019. [DOI: 10.1007/s11947-019-02360-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Rubin AE, Usta OB, Schloss R, Yarmush M, Golberg A. Selective Inactivation of Pseudomonas aeruginosa and Staphylococcus epidermidis with Pulsed Electric Fields and Antibiotics. Adv Wound Care (New Rochelle) 2019; 8:136-148. [PMID: 31737412 DOI: 10.1089/wound.2018.0819] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Accepted: 10/15/2018] [Indexed: 01/17/2023] Open
Abstract
Objective: Increasing numbers of multidrug-resistant bacteria make many antibiotics ineffective; therefore, new approaches to combat microbial infections are needed. In addition, antibiotics are not selective-they kill pathogenic organisms as well as organisms that could positively contribute to wound healing (bio flora). Approach: Here we report on selective inactivation of Pseudomonas aeruginosa and Staphylococcus epidermidis, potential pathogens involved in wound infections with pulsed electric fields (PEFs) and antibiotics (mix of penicillin, streptomycin, and nystatin). Results: Using a Taguchi experimental design in vitro, we found that, under similar electric field strengths, the pulse duration is the most important parameter for P. aeruginosa inactivation, followed by the number of pulses and pulse frequency. P. aeruginosa, a potential severe pathogen, is more sensitive than the less pathogenic S. epidermidis to PEF (alone or in combination with antibiotics). Applying 200 pulses with a duration of 60 μs at 2.8 Hz, the minimum electric fields of 308.8 ± 28.3 and 378.4 ± 12.9 V/mm were required to inactive P. aeruginosa and S. epidermidis, respectively. Addition of antibiotics reduced the threshold for minimum electric fields required to inactivate the bacteria. Innovation: This study provides essential information, such as critical electric field parameters for bacteria inactivation, required for developing in vivo treatment and clinical protocols for using PEF for wound healing. Conclusion: A combination of PEFs with antibiotics reduces the electric field threshold required for bacteria disinfection. Such an approach simplifies devices required to disinfect large areas of infected wounds.
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Affiliation(s)
- Andrey Ethan Rubin
- Porter School of Environment and Earth Sciences, Tel Aviv University Ramat Aviv, Tel Aviv, Israel
| | - Osman Berk Usta
- Center for Engineering in Medicine, Massachusetts General Hospital Shriners Burn Hospital for Children and Harvard Medical School, Boston, Massachusetts
| | - Rene Schloss
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey
| | - Martin Yarmush
- Center for Engineering in Medicine, Massachusetts General Hospital Shriners Burn Hospital for Children and Harvard Medical School, Boston, Massachusetts
- Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey
| | - Alexander Golberg
- Porter School of Environment and Earth Sciences, Tel Aviv University Ramat Aviv, Tel Aviv, Israel
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17
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desJardins-Park HE, Mascharak S, Chinta MS, Wan DC, Longaker MT. The Spectrum of Scarring in Craniofacial Wound Repair. Front Physiol 2019; 10:322. [PMID: 30984020 PMCID: PMC6450464 DOI: 10.3389/fphys.2019.00322] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Accepted: 03/11/2019] [Indexed: 12/11/2022] Open
Abstract
Fibrosis is intimately linked to wound healing and is one of the largest causes of wound-related morbidity. While scar formation is the normal and inevitable outcome of adult mammalian cutaneous wound healing, scarring varies widely between different anatomical sites. The spectrum of craniofacial wound healing spans a particularly diverse range of outcomes. While most craniofacial wounds heal by scarring, which can be functionally and aesthetically devastating, healing of the oral mucosa represents a rare example of nearly scarless postnatal healing in humans. In this review, we describe the typical wound healing process in both skin and the oral cavity. We present clinical correlates and current therapies and discuss the current state of research into mechanisms of scarless healing, toward the ultimate goal of achieving scarless adult skin healing.
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Affiliation(s)
- Heather E. desJardins-Park
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Shamik Mascharak
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Malini S. Chinta
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Derrick C. Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Michael T. Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, CA, United States
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States
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18
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IGBT-Based Pulsed Electric Fields Generator for Disinfection: Design and In Vitro Studies on Pseudomonas aeruginosa. Ann Biomed Eng 2019; 47:1314-1325. [PMID: 30726513 DOI: 10.1007/s10439-019-02225-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 01/30/2019] [Indexed: 01/20/2023]
Abstract
Irreversible electroporation of cell membrane with pulsed electric fields is an emerging physical method for disinfection that aims to reduce the doses and volumes of used antibiotics for wound healing. Here we report on the design of the IGBT-based pulsed electric field generator that enabled eradication of multidrug resistant Pseudomonas aeruginosa PAO1 on the gel. Using a concentric electric configuration we determined that the lower threshold of the electric field required to kill P. aeruginosa PAO1 was 89.28 ± 12.89 V mm-1, when 200 square pulses of 300 µs duration are delivered at 3 Hz. These parameters disinfected 38.14 ± 0.79 mm2 area around the single needle electrode. This study provides a step towards the design of equipment required for multidrug-resistant bacteria disinfection in patients with pulsed electric fields.
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19
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Molecular and histological study on the effects of electrolytic electroporation on the liver. Bioelectrochemistry 2019; 125:79-89. [DOI: 10.1016/j.bioelechem.2018.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/24/2018] [Accepted: 09/28/2018] [Indexed: 02/07/2023]
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20
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Li X, Saeidi N, Villiger M, Albadawi H, Jones JD, Quinn KP, Austin WG, Golberg A, Yarmush ML. Rejuvenation of aged rat skin with pulsed electric fields. J Tissue Eng Regen Med 2018; 12:2309-2318. [PMID: 30353675 DOI: 10.1002/term.2763] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/17/2018] [Accepted: 10/18/2018] [Indexed: 02/06/2023]
Abstract
The demand for skin rejuvenation procedures has progressively increased in the past decade. Additionally, clinical trials have shown that current therapies might cause downtime and side effects in patients including prolonged erythema, scarring, and dyspigmentation. The goal of this study was to explore the effect of partial irreversible electroporation (pIRE) with pulsed electric fields in aged skin rejuvenation as a novel, non-invasive skin resurfacing technique. In this study, we used an experimental model of aged rats. We showed that treatment with pIRE promoted keratinocyte proliferation and blood flow in aged rat skin. We also found significant evidence indicating that pIRE reformed the dermal extracellular matrix (ECM). Both the collagen protein and fibre density in aged skin increased after pIRE administration. Furthermore, using an image-processing algorithm, we found that the collagen fibre orientation in the histological sections did not change, indicating a lack of scar formation in the treated areas. The results showed that pIRE approach could effectively stimulate keratinocyte proliferation, ECM synthesis, and angiogenesis in an aged rat model.
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Affiliation(s)
- Xiaoxiang Li
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Burns Hospital, Boston, Massachusetts.,Orthopedics Oncology Institute of Chinese PLA, Department of Orthopedics, Tangdu Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Nima Saeidi
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Burns Hospital, Boston, Massachusetts
| | - Martin Villiger
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Hassan Albadawi
- Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jake D Jones
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
| | - Kyle P Quinn
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas
| | - William G Austin
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alexander Golberg
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Burns Hospital, Boston, Massachusetts.,Porter School of Environmental and Earth Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Martin L Yarmush
- Center for Engineering in Medicine, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, and the Shriners Burns Hospital, Boston, Massachusetts.,Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey
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21
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Hair Regeneration under Stress. J Invest Dermatol 2018; 138:1257-1259. [DOI: 10.1016/j.jid.2018.02.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 12/31/2022]
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