1
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Ulaangerel T, Yi M, Budsuren U, Shen Y, Ren H, Demuul B, Bai D, Dorjgotov D, Davaakhuu G, Jambal T, Dugarjav M, Bou G. Condition optimization for electroporation transfection in horse skeletal muscle satellite cells. Anim Biotechnol 2024; 35:2280664. [PMID: 37982395 DOI: 10.1080/10495398.2023.2280664] [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] [Indexed: 11/21/2023]
Abstract
Satellite cells are an important cellular model for studying muscle growth and development and mammalian locomotion-related molecular mechanisms. In this study, we investigated the effects of voltage, pulse duration, and DNA dosage on horse skeletal muscle satellite cells' electroporation transfection efficiency using the eukaryotic expression plasmid Td Tomato-C1 (5.5 kb) encoding the red fluorescent protein gene mainly based on fluorescence-positive cell rate and cell survival rate. By comparison of different voltages, pulse durations, and DNA doses, horse skeletal muscle satellite cells have nearly 80% transfection efficiency under the condition of voltage 120 V, DNA dosage 7 µg/ml, and pulse duration 30 ms. This optimized electroporation condition would facilitate the application of horse skeletal muscle satellite cells in genetic studies of muscle function and related diseases.
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Affiliation(s)
- Tseweendolmaa Ulaangerel
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Minna Yi
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Undarmaa Budsuren
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
- School of Animal Science and Biotechnology, Mongolian University of Life Sciences, Ulaanbaatar, Mongolia
| | - Yingchao Shen
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Hong Ren
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Bold Demuul
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Dongyi Bai
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Dulguun Dorjgotov
- School of Industrial Technology, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
| | - Gantulga Davaakhuu
- Institute of General and Experimental Biology, Mongolian Academy of Science, Ulaanbaatar, Mongolia
| | - Tuyatsetseg Jambal
- School of Industrial Technology, Mongolian University of Science and Technology, Ulaanbaatar, Mongolia
| | - Manglai Dugarjav
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
| | - Gerelchimeg Bou
- lnner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, College of Animal Science, Inner Mongolia Agricultural University, Hohhot, China
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2
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Mao M, Yang W, Zhang X. Current mRNA-based vaccine strategies for glioma treatment. Crit Rev Oncol Hematol 2024; 202:104459. [PMID: 39097247 DOI: 10.1016/j.critrevonc.2024.104459] [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: 07/20/2022] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/05/2024] Open
Abstract
Gliomas are one of the most aggressive types of brain tumors and are associated with high morbidity and mortality rates. Currently, conventional treatments for gliomas such as surgical resection, radiotherapy, and chemotherapy have limited effectiveness, and new approaches are needed to improve patient outcomes. mRNA-based vaccines represent a promising therapeutic strategy for cancer treatment, including gliomas. Recent advances in immunotherapy using mRNA-based dendritic cell vaccines have shown great potential in preclinical and clinical trials. Dendritic cells are professional antigen-presenting cells that play a crucial role in initiating and regulating immune responses. In this review, we summarize the current progress of mRNA-based vaccines for gliomas, with a focus on recent advances in dendritic cell-based mRNA vaccines. We also discuss the feasibility and safety of mRNA-based clinical applications for gliomas.
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Affiliation(s)
- Mengqian Mao
- Neuroscience & Metabolism Research, Department of Neurosurgery, West China Hospital, State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Wanchun Yang
- Neuroscience & Metabolism Research, Department of Neurosurgery, West China Hospital, State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - Xuefeng Zhang
- State Key Laboratory of Oral Diseases, National Center of Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, China.
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3
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Huang Y, Yao K, Zhang Q, Huang X, Chen Z, Zhou Y, Yu X. Bioelectronics for electrical stimulation: materials, devices and biomedical applications. Chem Soc Rev 2024; 53:8632-8712. [PMID: 39132912 DOI: 10.1039/d4cs00413b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Bioelectronics is a hot research topic, yet an important tool, as it facilitates the creation of advanced medical devices that interact with biological systems to effectively diagnose, monitor and treat a broad spectrum of health conditions. Electrical stimulation (ES) is a pivotal technique in bioelectronics, offering a precise, non-pharmacological means to modulate and control biological processes across molecular, cellular, tissue, and organ levels. This method holds the potential to restore or enhance physiological functions compromised by diseases or injuries by integrating sophisticated electrical signals, device interfaces, and designs tailored to specific biological mechanisms. This review explains the mechanisms by which ES influences cellular behaviors, introduces the essential stimulation principles, discusses the performance requirements for optimal ES systems, and highlights the representative applications. From this review, we can realize the potential of ES based bioelectronics in therapy, regenerative medicine and rehabilitation engineering technologies, ranging from tissue engineering to neurological technologies, and the modulation of cardiovascular and cognitive functions. This review underscores the versatility of ES in various biomedical contexts and emphasizes the need to adapt to complex biological and clinical landscapes it addresses.
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Affiliation(s)
- Ya Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Kuanming Yao
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Qiang Zhang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Xingcan Huang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Zhenlin Chen
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Yu Zhou
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
| | - Xinge Yu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
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4
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Tong S, Niu J, Wang Z, Jiao Y, Fu Y, Li D, Pan X, Sheng N, Yan L, Min P, Chen D, Cui S, Liu Y, Lin S. The Evolution of Microfluidic-Based Drug-Loading Techniques for Cells and Their Derivatives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403422. [PMID: 39152940 DOI: 10.1002/smll.202403422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 08/03/2024] [Indexed: 08/19/2024]
Abstract
Conventional drug delivery techniques face challenges related to targeting and adverse reactions. Recent years have witnessed significant advancements in nanoparticle-based drug carriers. Nevertheless, concerns persist regarding their safety and insufficient metabolism. Employing cells and their derivatives, such as cell membranes and extracellular vesicles (EVs), as drug carriers effectively addresses the challenges associated with nanoparticle carriers. However, an essential hurdle remains in efficiently loading drugs into these carriers. With the advancement of microfluidic technology and its advantages in precise manipulation at the micro- and nanoscales, as well as minimal sample loss, it has found extensive application in the loading of drugs using cells and their derivatives, thereby fostering the development of drug-loading techniques. This paper outlines the characteristics and benefits of utilizing cells and their derivatives as drug carriers and provides an overview of current drug-loading techniques, particularly those rooted in microfluidic technology. The significant potential for microfluidic technology in targeted disease therapy through drug delivery systems employing cells and their derivatives, is foreseen.
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Affiliation(s)
- Siyu Tong
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jiaqi Niu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhitao Wang
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yingao Jiao
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yanfei Fu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Dongxia Li
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xinni Pan
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200240, P. R. China
| | - Nengquan Sheng
- Department of General Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Li Yan
- Department of Geriatric Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Peiru Min
- Shanghai 9th People's Hospital, Shanghai Jiao Tong University College of Medicine, Shanghai, 200240, China
| | - Di Chen
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shengsheng Cui
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yanlei Liu
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shujing Lin
- School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
- Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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5
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Bai S, Luo H, Tong H, Wu Y, Yuan Y. Advances on transfer and maintenance of large DNA in bacteria, fungi, and mammalian cells. Biotechnol Adv 2024; 76:108421. [PMID: 39127411 DOI: 10.1016/j.biotechadv.2024.108421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/07/2024] [Accepted: 08/04/2024] [Indexed: 08/12/2024]
Abstract
Advances in synthetic biology allow the design and manipulation of DNA from the scale of genes to genomes, enabling the engineering of complex genetic information for application in biomanufacturing, biomedicine and other areas. The transfer and subsequent maintenance of large DNA are two core steps in large scale genome rewriting. Compared to small DNA, the high molecular weight and fragility of large DNA make its transfer and maintenance a challenging process. This review outlines the methods currently available for transferring and maintaining large DNA in bacteria, fungi, and mammalian cells. It highlights their mechanisms, capabilities and applications. The transfer methods are categorized into general methods (e.g., electroporation, conjugative transfer, induced cell fusion-mediated transfer, and chemical transformation) and specialized methods (e.g., natural transformation, mating-based transfer, virus-mediated transfection) based on their applicability to recipient cells. The maintenance methods are classified into genomic integration (e.g., CRISPR/Cas-assisted insertion) and episomal maintenance (e.g., artificial chromosomes). Additionally, this review identifies the major technological advantages and disadvantages of each method and discusses the development for large DNA transfer and maintenance technologies.
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Affiliation(s)
- Song Bai
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China; Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China
| | - Han Luo
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China; Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China
| | - Hanze Tong
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China; Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China
| | - Yi Wu
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China; Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China. @tju.edu.cn
| | - Yingjin Yuan
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, 300072 Tianjin, China; Frontiers Research Institute for Synthetic Biology, Tianjin University, Tianjin 300072, China
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6
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Bezze A, Mattioda C, Ciardelli G, Mattu C. Harnessing cells to improve transport of nanomedicines. Eur J Pharm Biopharm 2024:114446. [PMID: 39122052 DOI: 10.1016/j.ejpb.2024.114446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 07/18/2024] [Accepted: 08/05/2024] [Indexed: 08/12/2024]
Abstract
Efficient tumour treatment is hampered by the poor selectivity of anticancer drugs, resulting in scarce tumour accumulation and undesired off-target effects. Nano-sized drug-delivery systems in the form of nanoparticles (NPs) have been proposed to improve drug distribution to solid tumours, by virtue of their ability of passive and active tumour targeting. Despite these advantages, literature studies indicated that less than 1% of the administered NPs can successfully reach the tumour mass, highlighting the necessity for more efficient drug transporters in cancer treatment. Living cells, such as blood cells, circulating immune cells, platelets, and stem cells, are often found as an infiltrating component in most solid tumours, because of their ability to naturally circumvent immune recognition, bypass biological barriers, and reach inaccessible tissues through innate tropism and active motility. Therefore, the tumour-homing ability of these cells can be harnessed to design living cell carriers able to improve the transport of drugs and NPs to tumours. Albeit promising, this approach is still in its beginnings and suffers from difficult scalability, high cost, and poor reproducibility. In this review, we present an overview of the most common cell transporters of drugs and NPs, and we discuss how different cell types interact with biological barriers to deliver cargoes of various natures to tumours. Finally, we analyse the different techniques used to load drugs or NPs in living cells and discuss their advantages and disadvantages.
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Affiliation(s)
- Andrea Bezze
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torin, Italy
| | - Carlotta Mattioda
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torin, Italy
| | - Gianluca Ciardelli
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torin, Italy
| | - Clara Mattu
- Politecnico di Torino, DIMEAS C.so Duca degli Abruzzi 24, 10129 Torin, Italy
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7
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Maciulevičius M, Palepšienė R, Vykertas S, Raišutis R, Rafanavičius A, Krilavičius T, Šatkauskas S. The comparison of the dynamics of Ca 2+ and bleomycin intracellular delivery after cell sonoporation and electroporation in vitro. Bioelectrochemistry 2024; 158:108708. [PMID: 38636366 DOI: 10.1016/j.bioelechem.2024.108708] [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: 01/30/2024] [Revised: 04/05/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Abstract
Ca2+, in combination with SP or EP, induces cell cytotoxicity much faster compared to BLM. The application of BLM in combination with, SP or EP, reaches the level of cell death, induced by similar combination with Ca2+, only after 72 h. The methods of SP and EP were calibrated according to the level of differential cytotoxicity, determined after 6 days (using cell clonogenic assay). The combination of Ca2+ SP induces cell death faster than Ca2+ EP - after Ca2+ SP it increases to a maximum level after 15 min and remains constant for up to 6 days, while the cytotoxic efficiency after Ca2+ EP increases to the level of Ca2+ SP only after 72 h. The combination of BLM SP shows a very similar dynamics to BLM EP - both reach maximal level of cytotoxicity after 48-72 h. Ca2+ and BLM in combination with SP have shown similar levels of cytotoxicity at higher acoustic pressures (≥250 kPa); therefore, Ca2+ SP can be used to induce immediate and maximal level of cytotoxic effect. The faster cytotoxic efficiency of Ca2+ in combination with SP than EP was determined to be due to the involvement of microbubble inertial cavitation.
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Affiliation(s)
- Martynas Maciulevičius
- Biophysical Research Group, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania; Ultrasound Research Institute, Kaunas University of Technology, K. Baršausko st. 59, LT-51423 Kaunas, Lithuania.
| | - Rūta Palepšienė
- Biophysical Research Group, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania.
| | - Salvijus Vykertas
- Biophysical Research Group, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania.
| | - Renaldas Raišutis
- Ultrasound Research Institute, Kaunas University of Technology, K. Baršausko st. 59, LT-51423 Kaunas, Lithuania; Department of Electrical Power Systems, Faculty of Electrical and Electronics Engineering, Kaunas University of Technology, Studentų st. 48, LT-51367 Kaunas, Lithuania.
| | - Aras Rafanavičius
- Biophysical Research Group, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania.
| | - Tomas Krilavičius
- Faculty of Informatics, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania.
| | - Saulius Šatkauskas
- Biophysical Research Group, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos st. 8, LT-44404, Kaunas, Lithuania.
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8
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Sirch MM, Kamenac A, Neidinger SV, Wixforth A, Westerhausen C. Phase-State-Dependent Silica Nanoparticle Uptake of Giant Unilamellar Vesicles. J Phys Chem B 2024; 128:7172-7179. [PMID: 38995207 DOI: 10.1021/acs.jpcb.4c02383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
We quantify endocytosis-like nanoparticle (NP) uptake of model membranes as a function of temperature and, therefore, phase state. As model membranes, we use giant unilamellar vesicles (GUV) consisting of 1,2-dipentadecanoyl-sn-glycero-3-phosphocholine (15:0 PC). Time-series micrographs of the vesicle shrinkage show uptake rates that are a highly nonlinear function of temperature. A global maximum appears close to the main structural phase transition at T = Tm + 3 K = 37 °C and a minor peak at the pretransition T = Tp = 22 °C. The quality of linear fits to the shrinkage, and thus uptake kinetics, reveals a deviation from the linear trend at the vesicle shrinkage peaks. Taking values for the bending modulus as a function of temperature from literature and Helfrich's model allows us to draw qualitative conclusions on the membrane tension and the adhesion of the NP to the membrane as a function of temperature. These findings provide valuable insights into the dynamic interplay between temperature, membrane phase transitions, and NP uptake, shedding light on the complex behavior of biological membranes.
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Affiliation(s)
- Manuel M Sirch
- Institute of Theoretical Medicine, Physiology, University of Augsburg, Augsburg 86159, Germany
- Institute of Physics, University of Augsburg, Augsburg 86159, Germany
| | - Andrej Kamenac
- Institute of Theoretical Medicine, Physiology, University of Augsburg, Augsburg 86159, Germany
- Institute of Physics, University of Augsburg, Augsburg 86159, Germany
| | - Simon V Neidinger
- Institute of Theoretical Medicine, Physiology, University of Augsburg, Augsburg 86159, Germany
- Institute of Physics, University of Augsburg, Augsburg 86159, Germany
| | - Achim Wixforth
- Institute of Physics, University of Augsburg, Augsburg 86159, Germany
- Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, Munich 80799, Germany
| | - Christoph Westerhausen
- Institute of Theoretical Medicine, Physiology, University of Augsburg, Augsburg 86159, Germany
- Institute of Physics, University of Augsburg, Augsburg 86159, Germany
- Center for NanoScience (CeNS), Ludwig-Maximilians-Universität Munich, Munich 80799, Germany
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9
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Anastasova R, Fiorentzis M, Liu H, Dalbah S, Bechrakis NE, Seitz B, Berchner-Pfannschmidt U, Tsimpaki T. Electroporation with Calcium or Bleomycin: First Application in an In Vivo Uveal Melanoma Patient-Derived Xenograft Model. Pharmaceuticals (Basel) 2024; 17:905. [PMID: 39065755 PMCID: PMC11279991 DOI: 10.3390/ph17070905] [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: 05/13/2024] [Revised: 06/25/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Uveal melanoma (UM) represents a rare tumor of the uveal tract and is associated with a poor prognosis due to the high risk of metastasis. Despite advances in the treatment of UM, the mortality rate remains high, dictating an urgent need for novel therapeutic strategies. The current study introduces the first in vivo analysis of the therapeutic potential of calcium electroporation (CaEP) compared with electrochemotherapy (ECT) with bleomycin in a patient-derived xenograft (PDX) model based on the chorioallantoic membrane (CAM) assay. The experiments were conducted as monotherapy with either 5 or 10 mM calcium chloride or 1 or 2.5 µg/mL bleomycin in combination with EP or EP alone. CaEP and ECT induced a similar reduction in proliferative activity, neovascularization, and melanocytic expansion. A dose-dependent effect of CaEP triggered a significant induction of necrosis, whereas ECT application of 1 µg/mL bleomycin resulted in a significantly increased apoptotic response compared with untreated tumor grafts. Our results outline the prospective use of CaEP and ECT with bleomycin as an adjuvant treatment of UM, facilitating adequate local tumor control and potentially an improvement in metastatic and overall survival rates.
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Affiliation(s)
- Ralitsa Anastasova
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Miltiadis Fiorentzis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Hongtao Liu
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Sami Dalbah
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Nikolaos E. Bechrakis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Kirrberger Str. 100, 66421 Homburg, Germany;
| | - Utta Berchner-Pfannschmidt
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
| | - Theodora Tsimpaki
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (R.A.); (H.L.); (S.D.); (N.E.B.); (U.B.-P.); (T.T.)
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10
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Eşmekaya MA, Gürsoy G, Coşkun A. The estimation of pore size distribution of electroporated MCF-7 cell membrane. Electromagn Biol Med 2024; 43:176-186. [PMID: 38900674 DOI: 10.1080/15368378.2024.2366272] [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: 08/15/2023] [Accepted: 06/05/2024] [Indexed: 06/22/2024]
Abstract
The size of the pores created by external electrical pulses is important for molecule delivery into the cell. The size of pores and their distribution on the cell membrane determine the efficiency of molecule transport into the cell. There are very few studies visualizing the presence of electropores. In this study, we aimed to investigate the size distribution of electropores that were created by high intensity and short duration electrical pulses on MCF-7 cell membrane. Scanning Electron Microscopy (SEM) was used to visualize and characterize the membrane pores created by the external electric field. Structural changes on the surface of the electroporated cell membrane was observed by Atomic Force Microscopy (AFM). The size distribution of pore sizes was obtained by measuring the radius of 500 electropores. SEM imaging showed non-uniform patterning. The average radius of the electropores was 12 nm, 51.60% of pores were distributed within the range of 5 to 10 nm, and 81% of pores had radius below 15 nm. These results showed that microsecond (µs) high intensity electrical pulses cause the creation of heterogeneous nanopores on the cell membrane.
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Affiliation(s)
- Meriç Arda Eşmekaya
- Department of Biophysics, Basic Medical Sciences, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Güney Gürsoy
- Department of Biophysics, Basic Medical Sciences, Faculty of Medicine, Kırşehir Ahi Evran University, Kırsehır, Turkey
| | - Alaaddin Coşkun
- Department of Biophysics, Basic Medical Sciences, Faculty of Medicine, Kırıkkale University, Kırıkkale, Turkey
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11
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Zdzienicki M, Ziętek M, Krotewicz M, Ewert-Krzemieniewska A, Rutkowski P. The Long-Term Results of Electrochemotherapy in the Treatment of Patients with Locoregionally Advanced, Unresectable Melanoma. J Clin Med 2024; 13:3705. [PMID: 38999271 PMCID: PMC11242858 DOI: 10.3390/jcm13133705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 06/09/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
Background/Objectives: Despite observing progress in recent years in the treatment of patients with advanced melanoma, the optimal management of locoregional recurrence has not been determined. Various methods are used to treat this group of patients. One of these methods is electrochemotherapy. The present study presents the distant results in treating patients with the locoregional recurrence of melanoma, using the technique of electrochemotherapy. Methods: This study includes a retrospective analysis of 88 patients' data with locoregional melanoma recurrence, treated with electrochemotherapy (ECT) between 2010 and 2023, in two reference centers. Results: Approximately 80% of patients responded to the ECT treatment, achieving partial or complete remission. In a multivariate analysis, statistically significant longer overall survival was found in the group of patients who achieved complete remission after ECT and were treated with immunotherapy. Discussion: The results may suggest the existence of synergy between ECT and immunotherapy. However, confirmation of this fact requires further prospective studies that will also establish the role of ECT in the combination treatment of patients with locoregional recurrence of melanoma.
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Affiliation(s)
- Marcin Zdzienicki
- Department of Soft Tissue and Bone Sarcomas and Melanomas, Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, 02-791 Warszawa, Poland
| | - Marcin Ziętek
- Department of Oncology, Wroclaw Medical University, 53-413 Wrocław, Poland;
- Department of Surgical Oncology, Lower Silesian Oncology, Pulmonology and Hematology Center, 53-413 Wrocław, Poland
| | - Maria Krotewicz
- Department of Soft Tissue and Bone Sarcomas and Melanomas, Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, 02-791 Warszawa, Poland
| | - Agnieszka Ewert-Krzemieniewska
- Department of Soft Tissue and Bone Sarcomas and Melanomas, Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, 02-791 Warszawa, Poland
| | - Piotr Rutkowski
- Department of Soft Tissue and Bone Sarcomas and Melanomas, Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, 02-791 Warszawa, Poland
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12
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Liu F, Su R, Jiang X, Wang S, Mu W, Chang L. Advanced micro/nano-electroporation for gene therapy: recent advances and future outlook. NANOSCALE 2024; 16:10500-10521. [PMID: 38757536 DOI: 10.1039/d4nr01408a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Gene therapy is a promising disease treatment approach by editing target genes, and thus plays a fundamental role in precision medicine. To ensure gene therapy efficacy, the effective delivery of therapeutic genes into specific cells is a key challenge. Electroporation utilizes short electric pulses to physically break the cell membrane barrier, allowing gene transfer into the cells. It dodges the off-target risks associated with viral vectors, and also stands out from other physical-based gene delivery methods with its high-throughput and cargo-accelerating features. In recent years, with the help of advanced micro/nanotechnology, micro/nanostructure-integrated electroporation (micro/nano-electroporation) techniques and devices have significantly improved cell viability, transfection efficiency and dose controllability of the electroporation strategy, enhancing its application practicality especially in vivo. This technical advancement makes micro/nano-electroporation an effective and versatile tool for gene therapy. In this review, we first introduce the evolution of electroporation technique with a brief explanation of the perforation mechanism, and then provide an overview of the recent advancements and prospects of micro/nano-electroporation technology in the field of gene therapy. To comprehensively showcase the latest developments of micro/nano-electroporation technology in gene therapy, we focus on discussing micro/nano-electroporation devices and current applications at both in vitro and in vivo levels. Additionally, we outline the ongoing clinical studies of gene electrotransfer (GET), revealing the tremendous potential of electroporation-based gene delivery in disease treatment and healthcare. Lastly, the challenges and future directions in this field are discussed.
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Affiliation(s)
- Feng Liu
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Rongtai Su
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Xinran Jiang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
| | - Siqi Wang
- Department of General Surgery and Obesity and Metabolic Disease Center, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Wei Mu
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
- School of Engineering Medicine, Beihang University, Beijing, 100191, China
- Key Laboratory of Big Data-Based Precision Medicine (Beihang University), Ministry of Industry and Information Technology of the People's Republic of China, Beijing, 100191, China
| | - Lingqian Chang
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100191, China
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13
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Zhang B, Liu B, Wu Z, Oyama K, Ikari M, Yagi H, Tochio N, Kigawa T, Mikawa T, Miyake T. A Hybrid Nanotube Stamp System in Intracellular Protein Delivery for Cancer Treatment and NMR Analytical Techniques. Anal Chem 2024; 96:8349-8355. [PMID: 38745349 DOI: 10.1021/acs.analchem.3c05331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
In contrast to intracellular gene transfer, the direct delivery of expressed proteins is a significantly challenging yet essential technique for elucidating cellular functions, including protein complex structure, liquid-liquid phase separation, therapeutic applications, and reprogramming. In this study, we developed a hybrid nanotube (HyNT) stamp system that physically inserts the HyNTs into adhesive cells, enabling the injection of target molecules through HyNT ducts. This system demonstrates the capability to deliver multiple proteins, such as lactate oxidase (LOx) and ubiquitin (UQ), to approximately 1.8 × 107 adhesive cells with a delivery efficiency of 89.9% and a viability of 97.1%. The delivery of LOx enzyme into HeLa cancer cells induced cell death, while enzyme-delivered healthy cells remained viable. Furthermore, our stamp system can deliver an isotope-labeled UQ into adhesive cells for detection by nuclear magnetic resonance (NMR).
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Affiliation(s)
- Bowen Zhang
- Graduate School of Information, Production and Systems, Waseda University, Kitakyushu, Fukuoka 808-0135, Japan
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Bingfu Liu
- Graduate School of Information, Production and Systems, Waseda University, Kitakyushu, Fukuoka 808-0135, Japan
| | - Zhouji Wu
- Graduate School of Information, Production and Systems, Waseda University, Kitakyushu, Fukuoka 808-0135, Japan
| | - Kazuhiro Oyama
- Graduate School of Information, Production and Systems, Waseda University, Kitakyushu, Fukuoka 808-0135, Japan
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Masaomi Ikari
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Hiromasa Yagi
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Naoya Tochio
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Takanori Kigawa
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Tsutomu Mikawa
- RIKEN Center for Biosystems Dynamics Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Takeo Miyake
- Graduate School of Information, Production and Systems, Waseda University, Kitakyushu, Fukuoka 808-0135, Japan
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14
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Wiegell SR, Hendel K, Fuchs CSK, Gehl J, Vissing M, Bro SW, Troelsen JT, Jemec GBE, Haedersdal M. An Explorative Study on Calcium Electroporation for Low-risk Basal Cell Carcinoma. Acta Derm Venereol 2024; 104:adv19678. [PMID: 38712969 DOI: 10.2340/actadv.v104.19678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 03/08/2024] [Indexed: 05/08/2024] Open
Abstract
In electrochemotherapy, permeabilization of the cell membrane by electric pulses increases the anti-tumour effect of chemotherapeutics. In calcium electroporation, chemotherapy is replaced by calcium chloride with obvious benefits. This study explores the effect and underlying mechanisms of calcium electroporation on basal cell carcinomas using either high- or low-frequency electroporation. Low-risk primary basal cell carcinomas were treated in local anaesthesia with intratumoral calcium chloride followed by electroporation with high (167 kHz) or low (5 kHz) frequencies. Non-complete responders were retreated after 3 months. The primary endpoint was tumour response 3 months after last calcium electroporation. Plasma membrane calcium ATPase was examined in various cell lines as plasma membrane calcium ATPase levels have been associated with calcium electroporation efficacy. Twenty-two out of 25 included patients complete the study and 7 of these (32%) achieved complete response at 3 months with no difference in efficacy between high- and low-frequency pulses. High-frequency calcium electroporation was significantly less painful (p=0.03). Plasma membrane calcium ATPase was increased 16-32-fold in basal cell carcinoma cell lines compared with 4 other cancer cell lines. Calcium electroporation for low-risk basal cell carcinomas does not fulfil the requirements of a new dermatological basal cell carcinoma treatment but may be useful as adjuvant treatment to surgery in more advanced basal cell carcinomas. The elevated PMCA levels in basal cell carcinomas may contribute to low efficacy.
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Affiliation(s)
- Stine R Wiegell
- Department of Dermatology, Copenhagen University Hospital Bispebjerg, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark.
| | - Kristoffer Hendel
- Department of Dermatology, Copenhagen University Hospital Bispebjerg, Denmark
| | - Christine S K Fuchs
- Department of Dermatology, Copenhagen University Hospital Bispebjerg, Denmark
| | - Julie Gehl
- Department of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Roskilde and Naestved, Denmark
| | - Mille Vissing
- Department of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Roskilde and Naestved, Denmark
| | - Sara W Bro
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jesper T Troelsen
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Gregor B E Jemec
- Department of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark; Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Merete Haedersdal
- Department of Dermatology, Copenhagen University Hospital Bispebjerg, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
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15
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Wu M, Shi Y, Zhao J, Kong M. Engineering unactivated platelets for targeted drug delivery. Biomater Sci 2024; 12:2244-2258. [PMID: 38482903 DOI: 10.1039/d4bm00029c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
As a vital component of blood, platelets play crucial roles in hemostasis and maintaining vascular integrity, and actively participate in inflammation and immune regulation. The unique biological properties of natural platelets have enabled their utilization as drug delivery vehicles. The advancement and integration of various techniques, including biological, chemical, and physicochemical methods, have enabled the preparation of engineered platelets. Platelets can serve as drug delivery platforms combined with immunotherapy and chemokine therapy to enhance their therapeutic impact. This review focuses on the recent advancements in the application of unactivated platelets for drug delivery. The construction strategies of engineered platelets are comprehensively summarized, encompassing internal loading, surface modification, and genetic engineering techniques. Engineered platelets hold vast potential for treating cardiovascular diseases, cancers, and infectious diseases. Furthermore, the challenges and potential considerations in creating engineered platelets with natural activity are discussed.
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Affiliation(s)
- Meng Wu
- College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, 266003, China.
| | - Yan Shi
- College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, 266003, China.
| | - Jiaxuan Zhao
- College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, 266003, China.
| | - Ming Kong
- College of Marine Life Sciences, Ocean University of China, Qingdao, Shandong Province, 266003, China.
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16
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Maji D, Miguela V, Cameron AD, Campbell DA, Sasset L, Yao X, Thompson AT, Sussman C, Yang D, Miller R, Drozdz MM, Liberatore RA. Enhancing In Vivo Electroporation Efficiency through Hyaluronidase: Insights into Plasmid Distribution and Optimization Strategies. Pharmaceutics 2024; 16:547. [PMID: 38675208 PMCID: PMC11053992 DOI: 10.3390/pharmaceutics16040547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Electroporation (EP) stands out as a promising non-viral plasmid delivery strategy, although achieving optimal transfection efficiency in vivo remains a challenge. A noteworthy advancement in the field of in vivo EP is the application of hyaluronidase, an enzyme with the capacity to degrade hyaluronic acid in the extracellular matrix, which thereby enhances DNA transfer efficiency by 2- to 3-fold. This paper focuses on elucidating the mechanism of hyaluronidase's impact on transfection efficiency. We demonstrate that hyaluronidase promotes a more uniform distribution of plasmid DNA (pDNA) within skeletal muscle. Additionally, our study investigates the effect of the timing of hyaluronidase pretreatment on EP efficiency by including time intervals of 0, 5, and 30 min between hyaluronidase treatment and the application of pulses. Serum levels of the pDNA-encoded transgene reveal a minimal influence of the hyaluronidase pretreatment time on the final serum protein levels following delivery in both mice and rabbit models. Leveraging bioimpedance measurements, we capture morphological changes in muscle induced by hyaluronidase treatment, which result in a varied pDNA distribution. Subsequently, these findings are employed to optimize EP electrical parameters following hyaluronidase treatment in animal models. This paper offers novel insights into the potential of hyaluronidase in enhancing the effectiveness of in vivo EP, as well as guides optimized electroporation strategies following hyaluronidase use.
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Affiliation(s)
- Debnath Maji
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | - Verónica Miguela
- RenBio Inc., Long Island City, New York, NY 11101, USA
- Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas—Universidad Miguel Hernández de Elche, Sant Joan d’Alacant, 03550 Alicante, Spain
| | | | | | - Linda Sasset
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | - Xin Yao
- RenBio Inc., Long Island City, New York, NY 11101, USA
| | | | | | - David Yang
- RenBio Inc., Long Island City, New York, NY 11101, USA
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Robert Miller
- RenBio Inc., Long Island City, New York, NY 11101, USA
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17
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Rullo V, Castellaneta F, D’Antonio S, De Rosa A, Grieco MP, Fabrizio T. Electrochemotherapy in Kaposi's Sarcoma Patients: From the Gold Standard Strategy to Locally Advanced Cutaneous and Subcutaneous Lesions. Cancers (Basel) 2024; 16:1295. [PMID: 38610972 PMCID: PMC11010848 DOI: 10.3390/cancers16071295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/16/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Electrochemotherapy (ECT) is one of the newest therapeutic strategies employed as a medical procedure for skin neoplasms' treatment, especially for classic Kaposi's sarcoma (CKS). The aim of this study was to demonstrate ECT clinical response and the local control of CKS disease. The primary endpoint was to value the worth and efficacy of this local therapy in CKS skin lesions' treatment. In total, 19 CKS patients were enrolled, 14 males and 5 females with median age at diagnosis of 72. Complete response (CR) has been gained in 12 patients after first ECT attempt; meanwhile, 3 and 4 out of 19 patients obtained a partial response (PR), so they underwent a second and third ECT treatment, respectively. Clinical response was evaluated during the entire timeframe of the follow-up, which ranged between 3 months and 4 years with a median of 18 months. The control of CKS skin lesions still represents a challenge for surgeons and oncologists. Nevertheless, according to this and other authors' recent experiences, ECT could be considered the gold standard strategy for early-stage patients, but at the same time it could be considered as a valid option in controlling Kaposi's sarcoma locally advanced lesions.
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Affiliation(s)
- Vincenzo Rullo
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
- Division of Plastic Surgery, AOU Federico II, Via S. Pansini, 5, 80131 Naples, Italy
| | - Francesco Castellaneta
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
| | - Santolo D’Antonio
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
- Division of Plastic Surgery, AOU Federico II, Via S. Pansini, 5, 80131 Naples, Italy
| | - Anna De Rosa
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
- Division of Plastic Surgery, AOU Federico II, Via S. Pansini, 5, 80131 Naples, Italy
| | - Michele Pio Grieco
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
| | - Tommaso Fabrizio
- Division of Plastic Surgery, IRCCS-Centro di riferimento Oncologico della Basilicata, Via Padre Pio, 1, 95098 Rionero in Vulture, Italy; (V.R.); (F.C.); (S.D.); (A.D.R.); (M.P.G.)
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18
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El Khatib M, Motlagh AO, Beyer JN, Troxler T, Allu SR, Sun Q, Burslem GM, Vinogradov SA. Direct Measurements of FLASH-Induced Changes in Intracellular Oxygenation. Int J Radiat Oncol Biol Phys 2024; 118:781-789. [PMID: 37729972 DOI: 10.1016/j.ijrobp.2023.09.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/01/2023] [Accepted: 09/13/2023] [Indexed: 09/22/2023]
Abstract
PURPOSE The goal of our study was to characterize the dynamics of intracellular oxygen during application of radiation at conventional (CONV) and FLASH dose rates and obtain evidence for or against the oxygen depletion hypothesis as a mechanism of the FLASH effect. METHODS AND MATERIALS The measurements were performed by the phosphorescence quenching method using probe Oxyphor PtG4, which was delivered into the cellular cytosol by electroporation. RESULTS Intracellular radiochemical oxygen depletion (ROD) g-value for a dose rate of 100 Gy/s in the normoxic range was found to be 0.58 ± 0.03 μM/Gy. Intracellular ROD g-values for FLASH and CONV dose rates in the normoxic range were found to be nearly equal. As in solution-based studies, intracellular ROD was found to exhibit strong dependence on oxygen concentration in the range of 0 to ∼40 μM [O2]. CONCLUSIONS Depletion of oxygen in cells in vitro by a clinical dose of proton radiation delivered as FLASH is unable to produce a transient state of hypoxia and, therefore, unable to induce radioprotection. The difference between ROD g-values for FLASH and CONV dose rates, detected previously in solutions-based experiments, disappears when measurements are conducted inside cells. Understanding this phenomenon should provide additional insight into the role of oxygen in FLASH radiation therapy and help to decipher the mechanism of the FLASH effect.
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Affiliation(s)
- Mirna El Khatib
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Azar O Motlagh
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jenna N Beyer
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Thomas Troxler
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Srinivasa Rao Allu
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Qi Sun
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - George M Burslem
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sergei A Vinogradov
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, Pennsylvania.
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19
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Sahu P, Camarillo IG, Sundararajan R. Efficacy of metformin and electrical pulses in breast cancer MDA-MB-231 cells. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2024; 5:54-73. [PMID: 38464382 PMCID: PMC10918234 DOI: 10.37349/etat.2024.00204] [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: 08/19/2023] [Accepted: 10/30/2023] [Indexed: 03/12/2024] Open
Abstract
Aim Triple-negative breast cancer (TNBC) is a very aggressive subset of breast cancer, with limited treatment options, due to the lack of three commonly targeted receptors, which merits the need for novel treatments for TNBC. Towards this need, the use of metformin (Met), the most widely used type-2 diabetes drug worldwide, was explored as a repurposed anticancer agent. Cancer being a metabolic disease, the modulation of two crucial metabolites, glucose, and reactive oxygen species (ROS), is studied in MDA-MB-231 TNBC cells, using Met in the presence of electrical pulses (EP) to enhance the drug efficacy. Methods MDA-MB-231, human TNBC cells were treated with Met in the presence of EP, with various concentrations Met of 1 mmol/L, 2.5 mmol/L, 5 mmol/L, and 10 mmol/L. EP of 500 V/cm, 800 V/cm, and 1,000 V/cm (with a pulse width of 100 µs at 1 s intervals) were applied to TNBC and the impact of these two treatments was studied. Various assays, including cell viability, microscopic inspection, glucose, ROS, and wound healing assay, were performed to characterize the response of the cells to the combination treatment. Results Combining 1,000 V/cm with 5 mmol/L Met yielded cell viability as low as 42.6% at 24 h. The glucose level was reduced by 5.60-fold and the ROS levels were increased by 9.56-fold compared to the control, leading to apoptotic cell death. Conclusions The results indicate the enhanced anticancer effect of Met in the presence of electric pulses. The cell growth is inhibited by suppressing glucose levels and elevated ROS. This shows a synergistic interplay between electroporation, Met, glucose, and ROS metabolic alterations. The results show promises for combinational therapy in TNBC patients.
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Affiliation(s)
- Praveen Sahu
- School of Engineering Technology, Purdue University, West Lafayette, IN 47907, USA
| | - Ignacio G. Camarillo
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
- Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
| | - Raji Sundararajan
- School of Engineering Technology, Purdue University, West Lafayette, IN 47907, USA
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20
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Volodina O, Smirnikhina S. The Future of Gene Therapy: A Review of In Vivo and Ex Vivo Delivery Methods for Genome Editing-Based Therapies. Mol Biotechnol 2024:10.1007/s12033-024-01070-4. [PMID: 38363528 DOI: 10.1007/s12033-024-01070-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/08/2024] [Indexed: 02/17/2024]
Abstract
The development of gene therapy based on genome editing has opened up new possibilities for the treatment of human genetic disorders. This field has developed rapidly over the past few decades, some genome editing-based therapies are already in phase 3 clinical trials. However, there are several challenges to be addressed before widespread adoption of gene editing therapy becomes possible. The main obstacles in the development of such therapy are safety and efficiency, so one of the biggest issues is the delivery of genetic constructs to patient cells. Approaches in genetic cargo delivery divide into ex vivo and in vivo, which are suitable for different cases. The ex vivo approach is mainly used to edit blood cells, improve cancer therapy, and treat infectious diseases. To edit cells in organs researches choose in vivo approach. For each approach, there is a fairly large set of methods, but, unfortunately, these methods are not universal in their effectiveness and safety. The focus of this article is to discuss the current status of in vivo and ex vivo delivery methods used in genome editing-based therapy. We will discuss the main methods employed in these approaches and their applications in current gene editing treatments under development.
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Affiliation(s)
- Olga Volodina
- Laboratory of Genome Editing, Research Centre for Medical Genetics, Moscow, 115522, Russia.
| | - Svetlana Smirnikhina
- Laboratory of Genome Editing, Research Centre for Medical Genetics, Moscow, 115522, Russia
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21
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Kawai MY, Yoshida T, Kato T, Watanabe T, Kashiwagi M, Yamanaka S, Yamamoto H, Nagahiro S, Iwamoto T, Masud K, Aoki K, Ohura K, Nakao K. bmp-2 Gene-Transferred Skeletal Muscles with Needle-Type Electrodes as Efficient and Reliable Biomaterials for Bone Regeneration. MATERIALS (BASEL, SWITZERLAND) 2024; 17:880. [PMID: 38399131 PMCID: PMC10890310 DOI: 10.3390/ma17040880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
BACKGROUND Bone morphogenetic protein-2 (bmp-2) has a high potential to induce bone tissue formation in skeletal muscles. We developed a bone induction system in skeletal muscles using the bmp-2 gene through in vivo electroporation. Natural bone tissues with skeletal muscles can be considered potential candidates for biomaterials. However, our previous system using plate-type electrodes did not achieve a 100% success rate in inducing bone tissues in skeletal muscles. In this study, we aimed to enhance the efficiency of bone tissue formation in skeletal muscles by using a non-viral bmp-2 gene expression plasmid vector (pCAGGS-bmp-2) and needle-type electrodes. METHODS We injected the bmp-2 gene with pCAGGS-bmp-2 into the skeletal muscles of rats' legs and immediately placed needle-type electrodes there. Skeletal tissues were then observed on the 21st day after gene transfer using soft X-ray and histological analyses. RESULTS The use of needle-type electrodes resulted in a 100% success rate in inducing bone tissues in skeletal muscles. In contrast, the plate-type electrodes only exhibited a 33% success rate. Thus, needle-type electrodes can be more efficient and reliable for transferring the bmp-2 gene to skeletal muscles, making them potential biomaterials for repairing bone defects.
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Affiliation(s)
- Mariko Yamamoto Kawai
- Department of Welfare, Kansai Women’s College, Osaka 582-0026, Japan
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Takeshi Yoshida
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Tomoki Kato
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Takuma Watanabe
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Marina Kashiwagi
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Shigeki Yamanaka
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Hiromitsu Yamamoto
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
| | - Shigeki Nagahiro
- Department of Pediatric Dentistry/Special Needs Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan; (S.N.); (T.I.)
| | - Tsutomu Iwamoto
- Department of Pediatric Dentistry/Special Needs Dentistry, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan; (S.N.); (T.I.)
| | - Khan Masud
- Department of Basic Oral Health Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan; (K.M.); (K.A.)
| | - Kazuhiro Aoki
- Department of Basic Oral Health Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8549, Japan; (K.M.); (K.A.)
| | - Kiyoshi Ohura
- Department of Nursing, Taisei Gakuin University, Osaka 587-8555, Japan;
- Graduate School, Division of Dental Research, Osaka Dental University, Osaka 573-1121, Japan
| | - Kazumasa Nakao
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, Japan; (T.Y.); (T.K.); (T.W.); (M.K.); (S.Y.); (H.Y.); (K.N.)
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22
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An J, Zhang CP, Qiu HY, Zhang HX, Chen QB, Zhang YM, Lei XL, Zhang CX, Yin H, Zhang Y. Enhancement of the viability of T cells electroporated with DNA via osmotic dampening of the DNA-sensing cGAS-STING pathway. Nat Biomed Eng 2024; 8:149-164. [PMID: 37500747 DOI: 10.1038/s41551-023-01073-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 06/27/2023] [Indexed: 07/29/2023]
Abstract
Viral delivery of DNA for the targeted reprogramming of human T cells can lead to random genomic integration, and electroporation is inefficient and can be toxic. Here we show that electroporation-induced toxicity in primary human T cells is mediated by the cytosolic pathway cGAS-STING (cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) synthase-stimulator of interferon genes). We also show that an isotonic buffer, identified by screening electroporation conditions, that reduces cGAS-STING surveillance allowed for the production of chimaeric antigen receptor (CAR) T cells with up to 20-fold higher CAR T cell numbers than standard electroporation and with higher antitumour activity in vivo than lentivirally generated CAR T cells. The osmotic pressure of the electroporation buffer dampened cGAS-DNA interactions, affecting the production of the STING activator 2'3'-cGAMP. The buffer also led to superior efficiencies in the transfection of therapeutically relevant primary T cells and human haematopoietic stem cells. Our findings may facilitate the optimization of electroporation-mediated DNA delivery for the production of genome-engineered T cells.
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Affiliation(s)
- Jing An
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Chuan-Ping Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming, China
| | - Hou-Yuan Qiu
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Hong-Xia Zhang
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Qiu-Bing Chen
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yu-Ming Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Xin-Lin Lei
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Cai-Xiang Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Hao Yin
- Department of Urology, Department of Pathology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.
- TaiKang Centre for Life and Medical Sciences, TaiKang Medical School, Wuhan University, Wuhan, China.
- State Key Laboratory of Virology, Wuhan University, Wuhan, China.
- RNA Institute, Wuhan University, Wuhan, China.
| | - Ying Zhang
- Department of Rheumatology and Immunology, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.
- State Key Laboratory of Virology, Wuhan University, Wuhan, China.
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23
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Zhang H, Kelly K, Lee J, Echeverria D, Cooper D, Panwala R, Amrani N, Chen Z, Gaston N, Wagh A, Newby G, Xie J, Liu DR, Gao G, Wolfe S, Khvorova A, Watts J, Sontheimer E. Self-delivering, chemically modified CRISPR RNAs for AAV co-delivery and genome editing in vivo. Nucleic Acids Res 2024; 52:977-997. [PMID: 38033325 PMCID: PMC10810193 DOI: 10.1093/nar/gkad1125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023] Open
Abstract
Guide RNAs offer programmability for CRISPR-Cas9 genome editing but also add challenges for delivery. Chemical modification, which has been key to the success of oligonucleotide therapeutics, can enhance the stability, distribution, cellular uptake, and safety of nucleic acids. Previously, we engineered heavily and fully modified SpyCas9 crRNA and tracrRNA, which showed enhanced stability and retained activity when delivered to cultured cells in the form of the ribonucleoprotein complex. In this study, we report that a short, fully stabilized oligonucleotide (a 'protecting oligo'), which can be displaced by tracrRNA annealing, can significantly enhance the potency and stability of a heavily modified crRNA. Furthermore, protecting oligos allow various bioconjugates to be appended, thereby improving cellular uptake and biodistribution of crRNA in vivo. Finally, we achieved in vivo genome editing in adult mouse liver and central nervous system via co-delivery of unformulated, chemically modified crRNAs with protecting oligos and AAV vectors that express tracrRNA and either SpyCas9 or a base editor derivative. Our proof-of-concept establishment of AAV/crRNA co-delivery offers a route towards transient editing activity, target multiplexing, guide redosing, and vector inactivation.
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Affiliation(s)
- Han Zhang
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Karen Kelly
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Jonathan Lee
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Dimas Echeverria
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - David Cooper
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Rebecca Panwala
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Nadia Amrani
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Zexiang Chen
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Nicholas Gaston
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Atish Wagh
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Gregory A Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02139, USA
| | - Jun Xie
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Viral Vector Core, University of Massachusetts Chan Medical, School, Worcester, MA 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - David R Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, MA 02142, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA 02139, USA
| | - Guangping Gao
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Viral Vector Core, University of Massachusetts Chan Medical, School, Worcester, MA 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Scot A Wolfe
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Anastasia Khvorova
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- NeuroNexus Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Jonathan K Watts
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- NeuroNexus Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
| | - Erik J Sontheimer
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, MA 01605, USA
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24
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Tsimpaki T, Anastasova R, Liu H, Seitz B, Bechrakis NE, Berchner-Pfannschmidt U, Kraemer MM, Fiorentzis M. Calcium Electroporation versus Electrochemotherapy with Bleomycin in an In Vivo CAM-Based Uveal Melanoma Xenograft Model. Int J Mol Sci 2024; 25:938. [PMID: 38256012 PMCID: PMC10815639 DOI: 10.3390/ijms25020938] [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: 11/29/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Despite recent advancements in the diagnosis and treatment of uveal melanoma (UM), its metastatic rate remains high and is accompanied by a highly dismal prognosis, constituting an unmet need for the development of novel adjuvant therapeutic strategies. We established an in vivo chick chorioallantoic membrane (CAM)-based UM xenograft model from UPMD2 and UPMM3 cell lines to examine its feasibility for the improvement of selection of drug candidates. The efficacy of calcium electroporation (CaEP) with 5 or 10 mM calcium chloride (Ca) and electrochemotherapy (ECT) with 1 or 2.5 µg/mL bleomycin in comparison to monotherapy with the tested drug or electroporation (EP) alone was investigated on the generated UM tumors. CaEP and ECT showed a similar reduction of proliferation and melanocytic expansion with a dose-dependent effect for bleomycin, whereas CaEP induced a significant increase of the apoptosis and a reduction of vascularization with varying sensitivity for the two xenograft types. Our in vivo results suggest that CaEP and ECT may facilitate the adequate local tumor control and contribute to the preservation of the bulbus, potentially opening new horizons in the adjuvant treatment of advanced UM.
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Affiliation(s)
- Theodora Tsimpaki
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Ralitsa Anastasova
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Hongtao Liu
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Kirrberger Str. 100, 66421 Homburg, Germany;
| | - Nikolaos E. Bechrakis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Utta Berchner-Pfannschmidt
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Miriam M. Kraemer
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
| | - Miltiadis Fiorentzis
- Department of Ophthalmology, University Hospital Essen, University of Duisburg-Essen, Hufeland Str. 55, 45147 Essen, Germany; (T.T.); (R.A.); (H.L.); (N.E.B.); (U.B.-P.); (M.M.K.)
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25
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Ito Y, Inoue S, Nakashima T, Zhang H, Li Y, Kasuya H, Matsukawa T, Wu Z, Yoshikawa T, Kataoka M, Ishikawa T, Kagoya Y. Epigenetic profiles guide improved CRISPR/Cas9-mediated gene knockout in human T cells. Nucleic Acids Res 2024; 52:141-153. [PMID: 37985205 PMCID: PMC10783505 DOI: 10.1093/nar/gkad1076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 10/18/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023] Open
Abstract
Genetic modification of specific genes is emerging as a useful tool to enhance the functions of antitumor T cells in adoptive immunotherapy. Current advances in CRISPR/Cas9 technology enable gene knockout during in vitro preparation of infused T-cell products through transient transfection of a Cas9-guide RNA (gRNA) ribonucleoprotein complex. However, selecting optimal gRNAs remains a major challenge for efficient gene ablation. Although multiple in silico tools to predict the targeting efficiency have been developed, their performance has not been validated in cultured human T cells. Here, we explored a strategy to select optimal gRNAs using our pooled data on CRISPR/Cas9-mediated gene knockout in human T cells. The currently available prediction tools alone were insufficient to accurately predict the indel percentage in T cells. We used data on the epigenetic profiles of cultured T cells obtained from transposase-accessible chromatin with high-throughput sequencing (ATAC-seq). Combining the epigenetic information with sequence-based prediction tools significantly improved the gene-editing efficiency. We further demonstrate that epigenetically closed regions can be targeted by designing two gRNAs in adjacent regions. Finally, we demonstrate that the gene-editing efficiency of unstimulated T cells can be enhanced through pretreatment with IL-7. These findings enable more efficient gene editing in human T cells.
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Affiliation(s)
- Yusuke Ito
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Satoshi Inoue
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Takahiro Nakashima
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Haosong Zhang
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
- Division of Cellular Oncology, Department of Cancer Diagnostics and Therapeutics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yang Li
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
- Division of Cellular Oncology, Department of Cancer Diagnostics and Therapeutics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hitomi Kasuya
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Tetsuya Matsukawa
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Zhiwen Wu
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Toshiaki Yoshikawa
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Mirei Kataoka
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
| | - Tetsuo Ishikawa
- Department of Extended Intelligence for Medicine, The Ishii-Ishibashi Laboratory, Keio University School of Medicine, Tokyo, Japan
- Advanced Data Science Project, RIKEN Information R&D and Strategy Headquarters, RIKEN, Yokohama, Japan
- Collective Intelligence Research Laboratory, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuki Kagoya
- Division of Tumor Immunology, Institute for Advanced Medical Research, Keio University School of Medicine, Tokyo, Japan
- Division of Immune Response, Aichi Cancer Center Research Institute, Nagoya, Japan
- Division of Cellular Oncology, Department of Cancer Diagnostics and Therapeutics, Nagoya University Graduate School of Medicine, Nagoya, Japan
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26
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Sauerer T, Albrecht L, Sievers NM, Gerer KF, Hoyer S, Dörrie J, Schaft N. Electroporation of mRNA as a Universal Technology Platform to Transfect a Variety of Primary Cells with Antigens and Functional Proteins. Methods Mol Biol 2024; 2786:219-235. [PMID: 38814397 DOI: 10.1007/978-1-0716-3770-8_10] [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] [Indexed: 05/31/2024]
Abstract
Electroporation (EP) of mRNA into human cells is a broadly applicable method to transiently express proteins of choice in a variety of different cell types. We have spent more than two decades to optimize and adapt this method, first for antigen-loading of dendritic cells (DCs) and subsequently for T cells, B cells, bulk PBMCs, and several cell lines. In this regard, antigens were introduced, processed, and presented in context of MHC class I and II. Next to that, functional proteins like adhesion receptors, T-cell receptors (TCRs), chimeric antigen receptors (CARs), constitutively active signal transducers (i.e. caIKK), and others were successfully expressed. We have also established this protocol under full GMP compliance as part of a manufacturing license to produce mRNA-electroporated DCs and mRNA-electroporated T cells for therapeutic applications in clinical trials. Therefore, we here want to share our universal mRNA electroporation protocol and the experience we have gathered with this method. The advantages of the transfection method presented here are: (1) easy adaptation to different cell types; (2) scalability from 106 to approximately 108 cells per shot; (3) high transfection efficiency (80-99%); (4) homogenous protein expression; (5) GMP compliance if the EP is performed in a class A clean room; and (6) no transgene integration into the genome. The provided protocol involves: OptiMEM® as EP medium, a square-wave pulse with 500 V, and 4 mm cuvettes. To adapt the protocol to differently sized cells, simply the pulse time has to be altered. Thus, we share an overview of proven electroporation settings (including recovery media), which we have established for various cell types. Next to the basic protocol, we also provide an extensive list of hints and tricks, which, in our opinion, are of great value for everyone who intends to use this transfection technique.
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Affiliation(s)
- Tatjana Sauerer
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Leoni Albrecht
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Nico M Sievers
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Kerstin F Gerer
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
- Novartis Pharma GmbH, Nuremberg, Germany
| | - Stefanie Hoyer
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
- Department of Palliative Medicine, Universitätsklinikum Erlangen, Comprehensive Cancer Center CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Jan Dörrie
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany
| | - Niels Schaft
- RNA-based Immunotherapy, Department of Dermatology, Universitätsklinikum Erlangen (UKER), Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany.
- Comprehensive Cancer Center Erlangen European Metropolitan Area of Nuremberg (CCC ER-EMN), Erlangen, Germany.
- Deutsches Zentrum Immuntherapie (DZI), Erlangen, Germany.
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27
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Tazin N, Stevenson TJ, Bonkowsky JL, Gale BK. Using Electroporation to Improve and Accelerate Zebrafish Embryo Toxicity Testing. MICROMACHINES 2023; 15:49. [PMID: 38258168 PMCID: PMC10819337 DOI: 10.3390/mi15010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024]
Abstract
Zebrafish have emerged as a useful model for biomedical research and have been used in environmental toxicology studies. However, the presence of the chorion during the embryo stage limits cellular exposure to toxic elements and creates the possibility of a false-negative or reduced sensitivity in fish embryo toxicity testing (FET). This paper presents the use of electroporation as a technique to improve the delivery of toxic elements inside the chorion, increasing the exposure level of the toxins at an early embryo stage (<3 h post-fertilization). A custom-made electroporation device with the required electrical circuitry has been developed to position embryos between electrodes that provide electrical pulses to expedite the entry of molecules inside the chorion. The optimized parameters facilitate material entering into the chorion without affecting the survival rate of the embryos. The effectiveness of the electroporation system is demonstrated using Trypan blue dye and gold nanoparticles (AuNPs, 20-40 nm). Our results demonstrate the feasibility of controlling the concentration of dye and nanoparticles delivered inside the chorion by optimizing the electrical parameters, including pulse width, pulse number, and amplitude. Next, we tested silver nanoparticles (AgNPs, 10 nm), a commonly used toxin that can lower mortality, affect heart rate, and cause phenotypic defects. We found that electroporation of AgNPs reduces the exposure time required for toxicity testing from 4 days to hours. Electroporation for FET can provide rapid entry of potential toxins into zebrafish embryos, reducing the time required for toxicity testing and drug delivery experiments.
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Affiliation(s)
- Nusrat Tazin
- Department of Electrical and Computer Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Tamara J. Stevenson
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Joshua L. Bonkowsky
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Bruce K. Gale
- Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA
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Pan X, Huang P, Ali SS, Renslo B, Hutchinson TE, Erwin N, Greenberg Z, Ding Z, Li Y, Warnecke A, Fernandez NE, Staecker H, He M. CRISPR-Cas9 Engineered Extracellular Vesicles for the Treatment of Dominant Progressive Hearing Loss. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.14.557853. [PMID: 38168224 PMCID: PMC10760051 DOI: 10.1101/2023.09.14.557853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Clinical translation of gene therapy has been challenging, due to limitations in current delivery vehicles such as traditional viral vectors. Herein, we report the use of gRNA:Cas9 ribonucleoprotein (RNP) complexes engineered extracellular vesicles (EVs) for in vivo gene therapy. By leveraging a novel high-throughput microfluidic droplet-based electroporation system (μDES), we achieved 10-fold enhancement of loading efficiency and more than 1000-fold increase in processing throughput on loading RNP complexes into EVs (RNP-EVs), compared with conventional bulk electroporation. The flow-through droplets serve as enormous bioreactors for offering millisecond pulsed, low-voltage electroporation in a continuous-flow and scalable manner, which minimizes the Joule heating influence and surface alteration to retain natural EV stability and integrity. In the Shaker-1 mouse model of dominant progressive hearing loss, we demonstrated the effective delivery of RNP-EVs into inner ear hair cells, with a clear reduction of Myo7ash1 mRNA expression compared to RNP-loaded lipid-like nanoparticles (RNP-LNPs), leading to significant hearing recovery measured by auditory brainstem responses (ABR).
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Affiliation(s)
- Xiaoshu Pan
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Peixin Huang
- Department of Otolaryngology, Head and Neck Surgery, University of Kansas School of Medicine, Kansas City, Kansas 66160, United States
| | - Samantha S. Ali
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Bryan Renslo
- Department of Otolaryngology, Head and Neck Surgery, University of Kansas School of Medicine, Kansas City, Kansas 66160, United States
| | - Tarun E Hutchinson
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Nina Erwin
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Zachary Greenberg
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Zuo Ding
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Yanjun Li
- Department of Medicinal Chemistry, Center for Natural Products, Drug Discovery and Development, University of Florida, Gainesville, Florida, 32610, United States
| | - Athanasia Warnecke
- Department of Otolaryngology, Hannover Medical School, 30625 Hannover, Germany
| | - Natalia E. Fernandez
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
| | - Hinrich Staecker
- Department of Otolaryngology, Head and Neck Surgery, University of Kansas School of Medicine, Kansas City, Kansas 66160, United States
| | - Mei He
- College of Pharmacy, Department of Pharmaceutics, University of Florida, Gainesville, Florida 32611, United States
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Bai C, Wang C, Lu Y. Novel Vectors and Administrations for mRNA Delivery. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303713. [PMID: 37475520 DOI: 10.1002/smll.202303713] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 06/28/2023] [Indexed: 07/22/2023]
Abstract
mRNA therapy has shown great potential in infectious disease vaccines, cancer immunotherapy, protein replacement therapy, gene editing, and other fields due to its central role in all life processes. However, mRNA is challenging to pass through the cell membrane due to its significant negative charges and degradation from RNase, so the key to mRNA therapy is efficient packaging and delivery of it with appropriate vectors. Presently researchers have developed various vectors such as viruses and liposomes, but these conventional vectors are now difficult to meet the growing requirement like safety, efficiency, and targeting, so many novel delivery vectors with unique advantages have emerged recently. This review mainly introduces two categories of novel vectors: biomacromolecules and inorganic nanoparticles, as well as two novel methods of control and administration based on these novel vectors: controlled-release administration and non-invasive administration. These novel delivery strategies have the advantages of high safety, biocompatibility, versatility, intelligence, and targeting. This paper analyzes the challenges faced by the field of mRNA delivery in depth, and discusses how to use the characteristics of novel vectors and administrations to solve these problems.
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Affiliation(s)
- Chenghai Bai
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Tsinghua University, Beijing, 100084, China
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Chen Wang
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Tsinghua University, Beijing, 100084, China
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yuan Lu
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Tsinghua University, Beijing, 100084, China
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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Wang C, Karlsson A, Oguin TH, Macintyre AN, Sempowski GD, McCarthy KR, Wang Y, Moody MA, Yuan F. Transient inhibition of lysosomal functions potentiates nucleic acid vaccines. Proc Natl Acad Sci U S A 2023; 120:e2306465120. [PMID: 37871214 PMCID: PMC10622924 DOI: 10.1073/pnas.2306465120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/01/2023] [Indexed: 10/25/2023] Open
Abstract
Nucleic acid vaccines have shown promising results in the clinic against infectious diseases and cancers. To robustly improve the vaccine efficacy and safety, we developed an approach to increase the intracellular stability of nucleic acids by transiently inhibiting lysosomal function in targeted tissues using sucrose. To achieve efficient and localized delivery of sucrose in animals, we designed a biomimetic lipid nanoparticle (LNP) to target the delivery of sucrose into mouse muscle cells. Using this approach, viral antigen expression in mouse muscle after DNA vaccination was substantially increased and prolonged without inducing local or systemic inflammation or toxicity. The same change in antigen expression would be achieved if the vaccine dose could be increased by 3,000 folds, which is experimentally and clinically impractical due to material restrictions and severe toxicity that will be induced by such a high dose of nucleic acids. The increase in antigen expression augmented the infiltration and activation of antigen-presenting cells, significantly improved vaccine-elicited humoral and T cell responses, and fully protected mice against the viral challenge at a low dose of vaccine. Based on these observations, we conclude that transient inhibition of lysosome function in target tissue by sucrose LNPs is a safe and potent approach to substantially improve nucleic acid-based vaccines.
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Affiliation(s)
- Chunxi Wang
- Department of Biomedical Engineering, Duke University, Durham, NC27708
| | - Amelia Karlsson
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
| | - Thomas H. Oguin
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
| | - Andrew N. Macintyre
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Medicine, Duke University School of Medicine, Durham, NC27708
| | - Gregory D. Sempowski
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Medicine, Duke University School of Medicine, Durham, NC27708
| | - Kevin R. McCarthy
- Center for vaccine research, University of Pittsburgh School of Medicine, Pittsburgh, PA15261
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA15261
| | - Yifei Wang
- Department of Biomedical Engineering, Duke University, Durham, NC27708
| | - M. Anthony Moody
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Pediatrics, Duke University School of Medicine, Durham, NC27708
| | - Fan Yuan
- Department of Biomedical Engineering, Duke University, Durham, NC27708
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Qian K, Zhong Z. Research frontiers of electroporation-based applications in cancer treatment: a bibliometric analysis. BIOMED ENG-BIOMED TE 2023; 68:445-456. [PMID: 37185096 DOI: 10.1515/bmt-2023-0113] [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: 03/17/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVES Electroporation, the breakdown of the biomembrane induced by external electric fields, has increasingly become a research hotspot for its promising related methods in various kinds of cancers. CONTENT In this article, we utilized CiteSpace 6.1.R2 to perform a bibliometric analysis on the research foundation and frontier of electroporation-based applications in cancer therapy. A total of 3,966 bibliographic records were retrieved from the Web of Science Core Collection for the bibliometric analysis. Sersa G. and Mir L. M. are the most indispensable researchers in this field, and the University of Ljubljana of Slovenia is a prominent institution. By analyzing references and keywords, we found that, with a lower recurrence rate, fewer severe adverse events, and a higher success rate, irreversible electroporation, gene electrotransfer, and electrochemotherapy are the three main research directions that may influence the future treatment protocol of cancers. SUMMARY This article visualized relevant data to synthesize scientific research on electroporation-based cancer therapy, providing helpful suggestions for further investigations on electroporation. OUTLOOK Although electroporation-based technologies have been proven as promising tools for cancer treatment, its radical mechanism is still opaque and their commercialization and universalization need further efforts from peers.
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Affiliation(s)
- Kun Qian
- Department of High-voltage and Insulation, School of Electrical Engineering, Chongqing University, Chongqing, China
| | - Zilong Zhong
- Research Institute of Foreign Languages, Beijing Foreign Studies University, Beijing, China
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Shchaslyvyi AY, Antonenko SV, Tesliuk MG, Telegeev GD. Current State of Human Gene Therapy: Approved Products and Vectors. Pharmaceuticals (Basel) 2023; 16:1416. [PMID: 37895887 PMCID: PMC10609992 DOI: 10.3390/ph16101416] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/13/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
In the realm of gene therapy, a pivotal moment arrived with Paul Berg's groundbreaking identification of the first recombinant DNA in 1972. This achievement set the stage for future breakthroughs. Conditions once considered undefeatable, like melanoma, pancreatic cancer, and a host of other ailments, are now being addressed at their root cause-the genetic level. Presently, the gene therapy landscape stands adorned with 22 approved in vivo and ex vivo products, including IMLYGIC, LUXTURNA, Zolgensma, Spinraza, Patisiran, and many more. In this comprehensive exploration, we delve into a rich assortment of 16 drugs, from siRNA, miRNA, and CRISPR/Cas9 to DNA aptamers and TRAIL/APO2L, as well as 46 carriers, from AAV, AdV, LNPs, and exosomes to naked mRNA, sonoporation, and magnetofection. The article also discusses the advantages and disadvantages of each product and vector type, as well as the current challenges faced in the practical use of gene therapy and its future potential.
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Affiliation(s)
- Aladdin Y. Shchaslyvyi
- Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, 150, Zabolotnogo Str., 03143 Kyiv, Ukraine; (S.V.A.); (M.G.T.); (G.D.T.)
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Fait T, Baltazár T, Bubenickova L, Kestranek J, Stepan M, Muller M, Turcan P. Treatment of Vulvovaginal Laxity by Electroporation: The Jett Plasma Medical for Her II Study. J Clin Med 2023; 12:6234. [PMID: 37834879 PMCID: PMC10573526 DOI: 10.3390/jcm12196234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/19/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
INTRODUCTION Vaginal laxity is a widespread and undertreated medical condition associated especially with vaginal parity. AIM To evaluate the efficacy and safety of electroporation therapy treatment of vulvovaginal laxity by the Jett Plasma for Her II device. METHODS The Jett Plasma for Her II Study is a multicentric, prospective, randomized, single-blinded, and controlled study. Women presenting with vaginal laxity were randomized to receive electroporation therapy delivered to the vaginal tissue (active-82 patients) vs. therapy with zero intensity (placebo-9 patients). RESULTS A total of 91 subjects whose average age was 48.69 ± 10.89 were included. Due to the results of a one-way analysis of variance, it may be concluded that in the case of the vaginal laxity questionnaire (VLQ), there is a statistically significant difference between actively treated patients and the placebo group (F1,574 = 46.91; p < 0.001). In the case of the female sexual function index (FSFI), a one-way ANOVA test also showed a statistically significant difference between the actively treated patients and the placebo group (F1,278 = 7.97; p = 0.005). In the case of the incontinence impact questionnaire-7 (IIQ-7), a one-way ANOVA test showed a statistically significant difference between the actively treated patients and the placebo group (F1,384 = 15.51; p < 0.001). It confirms that improvement of vaginal laxity is conjoined with benefits in symptoms of urinary incontinence. Biopsy performed after the end of the treatment shows an increase in the vaginal mucosa thickness by an average of 100.04% in the active group. The treatment was well tolerated with no adverse events. No topical anesthetics were required. CONCLUSIONS Treatments of vulvovaginal laxity by electroporation therapy achieved significant and sustainable 12-month effectiveness. Responses to the questionnaires also suggest subjective improvement in self-reported sexual function, incontinence, sexual satisfaction, and urogenital distress.
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Affiliation(s)
- Tomas Fait
- Department of Obsterics and Gynaecology, 2nd Faculty of Medicine, Charles University, 150 00 Prague, Czech Republic;
- Department of Health Care Studies, College of Polytechnics Jihlava, 586 01 Jihlava, Czech Republic
| | - Tivadar Baltazár
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic
| | - Leona Bubenickova
- Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic;
| | - Jan Kestranek
- Department of Obsterics and Gynaecology, Hospital Trutnov, 541 01 Trutnov, Czech Republic;
- Department of Obsterics and Gynaecology, Medical Faculty in Hradec Kralove, Charles University, 500 05 Hradec Kralove, Czech Republic;
| | - Martin Stepan
- Department of Obsterics and Gynaecology, Medical Faculty in Hradec Kralove, Charles University, 500 05 Hradec Kralove, Czech Republic;
| | - Miroslav Muller
- Gynedology Pardubice Muller, 530 02 Pardubice, Czech Republic;
| | - Pavel Turcan
- Mediol Centre—Olomouc, 779 00 Olomouc, Czech Republic
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Hwang J, Jang S, Kim C, Lee S, Jeong HS. Role of Stem Cell-Derived Exosomes and microRNAs in Spinal Cord Injury. Int J Mol Sci 2023; 24:13849. [PMID: 37762150 PMCID: PMC10530823 DOI: 10.3390/ijms241813849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
Neurological disorders represent a global health problem. Current pharmacological treatments often lead to short-term symptomatic relief but have dose-dependent side effects, such as inducing orthostatic arterial hypotension due to the blockade of alpha receptors, cardiotoxic effects due to impaired repolarization, and atrioventricular block and tachycardia, including ventricular fibrillation. These challenges have driven the medical community to seek effective treatments for this serious global health threat. Mesenchymal stem cells (MSCs) are pluripotent cells with anti-inflammatory, anti-apoptotic, and immunomodulatory properties, providing a promising alternative due to their ability to differentiate, favorable culture conditions, in vitro manipulation ability, and robust properties. Although MSCs themselves rarely differentiate into neurons at the site of injury after transplantation in vivo, paracrine factors secreted by MSCs can create environmental conditions for cell-to-cell communication and have shown therapeutic effects. Recent studies have shown that the pleiotropic effects of MSCs, particularly their immunomodulatory potential, can be attributed primarily to these paracrine factors. Exosomes derived from MSCs are known to play an important role in these effects. Many studies have evaluated the potential of exosome-based therapies for the treatment of various neurological diseases. In addition to exosomes, various miRNAs derived from MSCs have been identified to regulate genes and alleviate neuropathological changes in neurodegenerative diseases. This review explores the burgeoning field of exosome-based therapies, focusing on the effects of MSC-derived exosomes and exosomal miRNAs, and summarizes recent findings that shed light on the potential of exosomes in the treatment of neurological disorders. The insights gained from this review may pave the way for innovative and effective treatments for these complex conditions. Furthermore, we suggest the therapeutic effects of exosomes and exosomal miRNAs from MSCs, which have a rescue potential in spinal cord injury via diverse signaling pathways.
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Affiliation(s)
- Jinsu Hwang
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
| | - Sujeong Jang
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
| | - Choonghyo Kim
- Department of Neurosurgery, Kangwon National University School of Medicine, Chuncheon 24341, Republic of Korea;
| | - Sungjoon Lee
- Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea;
| | - Han-Seong Jeong
- Department of Physiology, Chonnam National University Medical School, Hwasun 58128, Republic of Korea; (J.H.); (S.J.)
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Pisani S, Di Martino D, Cerri S, Genta I, Dorati R, Bertino G, Benazzo M, Conti B. Investigation and Comparison of Active and Passive Encapsulation Methods for Loading Proteins into Liposomes. Int J Mol Sci 2023; 24:13542. [PMID: 37686348 PMCID: PMC10487800 DOI: 10.3390/ijms241713542] [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: 07/26/2023] [Revised: 08/26/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
In this work, four different active encapsulation methods, microfluidic (MF), sonication (SC), freeze-thawing (FT), and electroporation (EP), were investigated to load a model protein (bovine serum albumin-BSA) into neutral liposomes made from 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC):cholesterol (Chol) and charged liposomes made from DSPC:Chol:Dioleoyl-3-trimethylammonium propane (DOTAP), DSPC:Chol:1,2-dioleoyl-sn-glycero-3-phospho-L-serine (DOPS), and DSPC:Chol:phosphatidylethanolamine (PE). The aim was to increase the protein encapsulation efficiency (EE%) by keeping the liposome size below 200 nm and the PDI value below 0.7, which warrants a nearly monodisperse preparation. Electroporation (100 V) yielded the best results in terms of EE%, with a dramatic increase in liposome size (>600 nm). The FT active-loading method, either applied to neutral or charged liposomes, allowed for obtaining suitable EE%, keeping the liposome size range below 200 nm with a suitable PDI index. Cationic liposomes (DSPC:Chol:DOTAP) loaded with the FT active method showed the best results in terms of EE% (7.2 ± 0.8%) and size (131.2 ± 11.4 nm, 0.140 PDI). In vitro release of BSA from AM neutral and charged liposomes resulted slower compared to PM liposomes and was affected by incubation temperature (37 °C, 4 °C). The empty charged liposomes tested for cell viability on Human Normal Dermal Fibroblast (HNDF) confirmed their cytocompatibility also at high concentrations (1010 particles/mL) and cellular uptake at 4 °C and 37 °C. It can be concluded that even if both microfluidic passive and active methods are more easily transferable to an industrial scale, the FT active-loading method turned out to be the best in terms of BSA encapsulation efficiencies, keeping liposome size below 200 nm.
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Affiliation(s)
- Silvia Pisani
- Department of Drug Sciences, University of Pavia, Viale T. Taramelli 12, 27100 Pavia, Italy; (S.P.); (I.G.); (R.D.)
| | - Deborah Di Martino
- Unit of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (D.D.M.); (S.C.)
| | - Silvia Cerri
- Unit of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (D.D.M.); (S.C.)
| | - Ida Genta
- Department of Drug Sciences, University of Pavia, Viale T. Taramelli 12, 27100 Pavia, Italy; (S.P.); (I.G.); (R.D.)
| | - Rossella Dorati
- Department of Drug Sciences, University of Pavia, Viale T. Taramelli 12, 27100 Pavia, Italy; (S.P.); (I.G.); (R.D.)
| | - Giulia Bertino
- Otorhinolaryngology Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (G.B.); (M.B.)
| | - Marco Benazzo
- Otorhinolaryngology Unit, Department of Surgical Sciences, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (G.B.); (M.B.)
| | - Bice Conti
- Department of Drug Sciences, University of Pavia, Viale T. Taramelli 12, 27100 Pavia, Italy; (S.P.); (I.G.); (R.D.)
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Han S, Lee P, Choi HJ. Non-Invasive Vaccines: Challenges in Formulation and Vaccine Adjuvants. Pharmaceutics 2023; 15:2114. [PMID: 37631328 PMCID: PMC10458847 DOI: 10.3390/pharmaceutics15082114] [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: 07/13/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Given the limitations of conventional invasive vaccines, such as the requirement for a cold chain system and trained personnel, needle-based injuries, and limited immunogenicity, non-invasive vaccines have gained significant attention. Although numerous approaches for formulating and administrating non-invasive vaccines have emerged, each of them faces its own challenges associated with vaccine bioavailability, toxicity, and other issues. To overcome such limitations, researchers have created novel supplementary materials and delivery systems. The goal of this review article is to provide vaccine formulation researchers with the most up-to-date information on vaccine formulation and the immunological mechanisms available, to identify the technical challenges associated with the commercialization of non-invasive vaccines, and to guide future research and development efforts.
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Affiliation(s)
| | | | - Hyo-Jick Choi
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada; (S.H.); (P.L.)
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Rathee J, Malhotra S, Pandey M, Jain N, Kaul S, Gupta G, Nagaich U. Recent Update on Nanoemulsion Impregnated Hydrogel: a Gleam into the Revolutionary Strategy for Diffusion-Controlled Delivery of Therapeutics. AAPS PharmSciTech 2023; 24:151. [PMID: 37438613 DOI: 10.1208/s12249-023-02611-x] [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: 04/15/2023] [Accepted: 06/25/2023] [Indexed: 07/14/2023] Open
Abstract
Since earlier times, dermatological remedies have been utilized to treat diseases associated with pain, irritation, and skin conditions. Compared to other routes of drug delivery, topical delivery of drugs offers several benefits. Scientists are investigating different alterations in dosage forms in addition to existing topical formulations such as ointments, gels, creams, lotions, and ointments to significantly improve the permeation of drugs and enhance the pharmacological efficacy of medications that are poorly absorbed via the skin. Conventional formulations have a plethora of problems viz. poor absorption, no target specificity, low spreadability, and inadequate bioavailability which leads the researchers toward developing novel formulations like nanoemulsions. The nanoemulsion can enhance the gradient in concentration and thermodynamic movement toward the epidermis and enhance the penetration of its constituents. However, due to its difficult application, nanoemulsion's lower viscosity limited its use in transdermal delivery. Thus, the development of nanoemulsion-based hydrogels has shown to be a successful strategy for removing obstacles from existing drug formulations. The simple application, expedient spreadability, non-stickiness, safety, and effectiveness of nanoemulsion-based hydrogel have led to substantial growth in their research in recent years. This review gives a brief idea about the prevalence of skin diseases, skin as an obstacle for drug delivery, and recent research insights to combat these obstacles. The work highlights the mechanism of drug release via nanoemulsion, hydrogels, and nanoemulsion-based hydrogels with reference to recent research on hydrophobic and hydrophilic drugs.
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Affiliation(s)
- Jatin Rathee
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, UP, India
| | - Sakshi Malhotra
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, UP, India
| | - Manisha Pandey
- Department of Pharmaceutical Sciences, Central University of Haryana, Mahendergarh, 123031, India.
| | - Neha Jain
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, UP, India.
| | - Shreya Kaul
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, UP, India
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Jaipur, 302017, India
- Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 602105, India
| | - Upendra Nagaich
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Noida, UP, India
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Pfisterer F, Godino N, Gerling T, Kirschbaum M. Continuous microfluidic flow-through protocol for selective and image-activated electroporation of single cells. RSC Adv 2023; 13:19379-19387. [PMID: 37383687 PMCID: PMC10294288 DOI: 10.1039/d3ra03100d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 05/31/2023] [Indexed: 06/30/2023] Open
Abstract
Electroporation of cells is a widely-used tool to transport molecules such as proteins or nucleic acids into cells or to extract cellular material. However, bulk methods for electroporation do not offer the possibility to selectively porate subpopulations or single cells in heterogeneous cell samples. To achieve this, either presorting or complex single-cell technologies are required currently. In this work, we present a microfluidic flow protocol for selective electroporation of predefined target cells identified in real-time by high-quality microscopic image analysis of fluorescence and transmitted light. While traveling through the microchannel, the cells are focused by dielectrophoretic forces into the microscopic detection area, where they are classified based on image analysis techniques. Finally, the cells are forwarded to a poration electrode and only the target cells are pulsed. By processing a heterogenically stained cell sample, we were able to selectively porate only target cells (green-fluorescent) while non-target cells (blue-fluorescent) remained unaffected. We achieved highly selective poration with >90% specificity at average poration rates of >50% and throughputs of up to 7200 cells per hour.
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Affiliation(s)
- Felix Pfisterer
- Fraunhofer Institute for Cell Therapy and Immunology IZI, Branch Bioanalytics and Bioprocesses IZI-BB Am Muehlenberg 13 14476 Potsdam Germany
| | - Neus Godino
- Fraunhofer Institute for Cell Therapy and Immunology IZI, Branch Bioanalytics and Bioprocesses IZI-BB Am Muehlenberg 13 14476 Potsdam Germany
| | - Tobias Gerling
- Fraunhofer Institute for Cell Therapy and Immunology IZI, Branch Bioanalytics and Bioprocesses IZI-BB Am Muehlenberg 13 14476 Potsdam Germany
| | - Michael Kirschbaum
- Fraunhofer Institute for Cell Therapy and Immunology IZI, Branch Bioanalytics and Bioprocesses IZI-BB Am Muehlenberg 13 14476 Potsdam Germany
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O'Brien B, Reilly J, Coffey K, González-Suárez A, Quinlan L, van Zyl M. Cardioneuroablation Using Epicardial Pulsed Field Ablation for the Treatment of Atrial Fibrillation. J Cardiovasc Dev Dis 2023; 10:238. [PMID: 37367403 DOI: 10.3390/jcdd10060238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia affecting millions of people worldwide. The cardiac autonomic nervous system (ANS) is widely recognized as playing a key role in both the initiation and propagation of AF. This paper reviews the background and development of a unique cardioneuroablation technique for the modulation of the cardiac ANS as a potential treatment for AF. The treatment uses pulsed electric field energy to selectively electroporate ANS structures on the epicardial surface of the heart. Insights from in vitro studies and electric field models are presented as well as data from both pre-clinical and early clinical studies.
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Affiliation(s)
- Barry O'Brien
- AtriAN Medical Ltd., Unit 204, Business Innovation Centre, Upper Newcastle, H91 W60E Galway, Ireland
| | - John Reilly
- AtriAN Medical Ltd., Unit 204, Business Innovation Centre, Upper Newcastle, H91 W60E Galway, Ireland
| | - Ken Coffey
- AtriAN Medical Ltd., Unit 204, Business Innovation Centre, Upper Newcastle, H91 W60E Galway, Ireland
| | - Ana González-Suárez
- School of Engineering, University of Galway, H91 TK33 Galway, Ireland
- Translational Medical Device Lab, University of Galway, H91 YR71 Galway, Ireland
| | - Leo Quinlan
- Physiology and Cellular Physiology Research Laboratory, CURAM SFI Centre for Research in Medical Device, University of Galway, H91 TK33 Galway, Ireland
| | - Martin van Zyl
- Cardiac Electrophysiology, Royal Jubilee Hospital, Victoria, BC V8R 1J8, Canada
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Luo X, Li W, Liang Z, Liu Y, Fan DE. Portable Bulk-Water Disinfection by Live Capture of Bacteria with Divergently Branched Porous Graphite in Electric Fields. ACS NANO 2023. [PMID: 37224419 DOI: 10.1021/acsnano.2c12229] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Easy access to clean water is essential to functioning and development of modern society. However, it remains arduous to develop energy-efficient, facile, and portable water treatment systems for point-of-use (POU) applications, which is particularly imperative for the safety and resilience of society during extreme weather and critical situations. Here, we propose and validate a meritorious working scheme for water disinfection via directly capturing and removing pathogen cells from bulk water using strategically designed three-dimensional (3D) porous dendritic graphite foams (PDGFs) in a high-frequency AC field. The prototype, integrated in a 3D-printed portable water-purification module, can reproducibly remove 99.997% E. coli bacteria in bulk water at a few voltages with among the lowest energy consumption at 435.5 J·L-1. The PDGFs, costing $1.47 per piece, can robustly operate at least 20 times for more than 8 h in total without functional degradation. Furthermore, we successfully unravel the involved disinfection mechanism with one-dimensional Brownian dynamics simulation. The system is practically applied that brings natural water in Waller Creek at UT Austin to the safe drinking level. This research, including the working mechanism based on dendritically porous graphite and the design scheme, could inspire a future device paradigm for POU water treatment.
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Campelo SN, Lorenzo MF, Partridge B, Alinezhadbalalami N, Kani Y, Garcia J, Saunier S, Thomas SC, Hinckley J, Verbridge SS, Davalos RV, Rossmeisl JH. High-frequency irreversible electroporation improves survival and immune cell infiltration in rodents with malignant gliomas. Front Oncol 2023; 13:1171278. [PMID: 37213298 PMCID: PMC10196182 DOI: 10.3389/fonc.2023.1171278] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 04/24/2023] [Indexed: 05/23/2023] Open
Abstract
Background Irreversible electroporation (IRE) has been previously investigated in preclinical trials as a treatment for intracranial malignancies. Here, we investigate next generation high-frequency irreversible electroporation (H-FIRE), as both a monotherapy and a combinatorial therapy, for the treatment of malignant gliomas. Methods Hydrogel tissue scaffolds and numerical modeling were used to inform in-vivo H-FIRE pulsing parameters for our orthotopic tumor-bearing glioma model. Fischer rats were separated into five treatment cohorts including high-dose H-FIRE (1750V/cm), low-dose H-FIRE (600V/cm), combinatorial high-dose H-FIRE + liposomal doxorubicin, low-dose H-FIRE + liposomal doxorubicin, and standalone liposomal doxorubicin groups. Cohorts were compared against a standalone tumor-bearing sham group which received no therapeutic intervention. To further enhance the translational value of our work, we characterize the local and systemic immune responses to intracranial H-FIRE at the study timepoint. Results The median survival for each cohort are as follows: 31 days (high-dose H-FIRE), 38 days (low-dose H-FIRE), 37.5 days (high-dose H-FIRE + liposomal doxorubicin), 27 days (low-dose H-FIRE + liposomal doxorubicin), 20 days (liposomal doxorubicin), and 26 days (sham). A statistically greater overall survival fraction was noted in the high-dose H-FIRE + liposomal doxorubicin (50%, p = 0.044), high-dose H-FIRE (28.6%, p = 0.034), and the low-dose H-FIRE (20%, p = 0.0214) compared to the sham control (0%). Compared to sham controls, brain sections of rats treated with H-FIRE demonstrated significant increases in IHC scores for CD3+ T-cells (p = 0.0014), CD79a+ B-cells (p = 0.01), IBA-1+ dendritic cells/microglia (p = 0.04), CD8+ cytotoxic T-cells (p = 0.0004), and CD86+ M1 macrophages (p = 0.01). Conclusions H-FIRE may be used as both a monotherapy and a combinatorial therapy to improve survival in the treatment of malignant gliomas while also promoting the presence of infiltrative immune cells.
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Affiliation(s)
- Sabrina N. Campelo
- Bioelectromechanical Systems Laboratory, Virginia Tech, Blacksburg, VA, United States
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Melvin F. Lorenzo
- Bioelectromechanical Systems Laboratory, Virginia Tech, Blacksburg, VA, United States
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Brittanie Partridge
- Department of Small Animal Clinical Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Nastaran Alinezhadbalalami
- Bioelectromechanical Systems Laboratory, Virginia Tech, Blacksburg, VA, United States
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Yukitaka Kani
- Department of Small Animal Clinical Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Josefa Garcia
- Department of Small Animal Clinical Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Sofie Saunier
- Bioelectromechanical Systems Laboratory, Virginia Tech, Blacksburg, VA, United States
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Sean C. Thomas
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Jonathan Hinckley
- Department of Small Animal Clinical Sciences, Virginia Tech, Blacksburg, VA, United States
| | - Scott S. Verbridge
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - Rafael V. Davalos
- Bioelectromechanical Systems Laboratory, Virginia Tech, Blacksburg, VA, United States
- School of Biomedical Engineering and Sciences, Virginia Tech-Wake Forest University, Blacksburg, VA, United States
| | - John H. Rossmeisl
- Department of Small Animal Clinical Sciences, Virginia Tech, Blacksburg, VA, United States
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Berzosa A, Delso C, Sanz J, Sánchez-Gimeno C, Raso J. Sequential extraction of compounds of interest from yeast biomass assisted by pulsed electric fields. Front Bioeng Biotechnol 2023; 11:1197710. [PMID: 37214279 PMCID: PMC10192903 DOI: 10.3389/fbioe.2023.1197710] [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: 03/31/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
One strategy to reduce cost and improve feasibility of waste-yeast biomass valorization is to obtain a spectrum of marketable products rather than just a single one. This study explores the potential of Pulsed Electric Fields (PEF) for the development of a cascade process designed to obtain several valuable products from Saccharomyces cerevisiae yeast biomass. Yeast biomass was treated by PEF, which affected the viability of 50%, 90%, and over 99% of S. cerevisiae cells, depending on treatment intensity. Electroporation caused by PEF allowed access to the cytoplasm of the yeast cell without causing total breakdown of the cell structure. This outcome was an essential prerequisite to be able to perform a sequential extraction of several value-added biomolecules from yeast cells located in the cytosol and in the cell wall. After incubating yeast biomass previously subjected to a PEF treatment that affected the viability of 90% of cells for 24 h, an extract with 114.91 ± 2.86, 7.08 ± 0.64, and 187.82 ± 3.75 mg/g dry weight of amino acids, glutathione, and protein, respectively, was obtained. In a second step, the extract rich in cytosol components was removed after 24 h of incubation and the remaining cell biomass was re-suspended with the aim of inducing cell wall autolysis processes triggered by the PEF treatment. After 11 days of incubation, a soluble extract containing mannoproteins and pellets rich in β-glucans were obtained. In conclusion, this study proved that electroporation triggered by PEF permitted the development of a cascade procedure designed to obtain a spectrum of valuable biomolecules from S. cerevisiae yeast biomass while reducing the generation of waste.
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Qiu L, Han X, Xing C, Glebe U. Polymerization-Induced Self-Assembly: An Emerging Tool for Generating Polymer-Based Biohybrid Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207457. [PMID: 36737834 DOI: 10.1002/smll.202207457] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/04/2023] [Indexed: 05/04/2023]
Abstract
The combination of biomolecules and synthetic polymers provides an easy access to utilize advantages from both the synthetic world and nature. This is not only important for the development of novel innovative materials, but also promotes the application of biomolecules in various fields including medicine, catalysis, and water treatment, etc. Due to the rapid progress in synthesis strategies for polymer nanomaterials and deepened understanding of biomolecules' structures and functions, the construction of advanced polymer-based biohybrid nanostructures (PBBNs) becomes prospective and attainable. Polymerization-induced self-assembly (PISA), as an efficient and versatile technique in obtaining polymeric nano-objects at high concentrations, has demonstrated to be an attractive alternative to existing self-assembly procedures. Those advantages induce the focus on the fabrication of PBBNs via the PISA technique. In this review, current preparation strategies are illustrated based on the PISA technique for achieving various PBBNs, including grafting-from and grafting-through methods, as well as encapsulation of biomolecules during and subsequent to the PISA process. Finally, advantages and drawbacks are discussed in the fabrication of PBBNs via the PISA technique and obstacles are identified that need to be overcome to enable commercial application.
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Affiliation(s)
- Liang Qiu
- Key Laboratory of Hebei Province for Molecular Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
- Institute of Biophysics, School of Science, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xinyue Han
- Institute of Biophysics, School of Science, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Chengfen Xing
- Key Laboratory of Hebei Province for Molecular Biophysics, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Ulrich Glebe
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476, Potsdam-Golm, Germany
- Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476, Potsdam-Golm, Germany
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Broholm M, Vogelsang R, Bulut M, Stigaard T, Falk H, Frandsen S, Pedersen DL, Perner T, Fiehn AMK, Mølholm I, Bzorek M, Rosen AW, Andersen CSA, Pallisgaard N, Gögenur I, Gehl J. Endoscopic calcium electroporation for colorectal cancer: a phase I study. Endosc Int Open 2023; 11:E451-E459. [PMID: 37180313 PMCID: PMC10169226 DOI: 10.1055/a-2033-9831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/09/2023] [Indexed: 05/16/2023] Open
Abstract
Background and study aims Colorectal cancer is one of the most common malignancies, with approximately 20 % of patients having metastatic disease. Local symptoms from the tumor remain a common issue and affect quality of life. Electroporation is a method to permeabilize cell membranes with high-voltage pulses, allowing increased passage of otherwise poorly permeating substances such as calcium. The aim of this study was to determine the safety of calcium electroporation for advanced colorectal cancer. Patients and methods Six patients with inoperable rectal and sigmoid colon cancer were included, all presenting with local symptoms. Patients were offered endoscopic calcium electroporation and were followed up with endoscopy and computed tomography/magnetic resonance scans. Biopsies and blood samples were collected at baseline and at follow-up, 4, 8, and 12 weeks after treatment. Biopsies were examined for histological changes and immunohistochemically with CD3/CD8 and PD-L1. In addition, blood samples were examined for circulating cell-free DNA (cfDNA). Results A total of 10 procedures were performed and no serious adverse events occurred. Prior to inclusion, patients reported local symptoms, such as bleeding (N = 3), pain (N = 2), and stenosis (N = 5). Five of six patients reported symptom relief. In one patient, also receiving systemic chemotherapy, clinical complete response of primary tumor was seen. Immunohistochemistry found no significant changes in CD3 /CD8 levels or cfDNA levels after treatment. Conclusions This first study of calcium electroporation for colorectal tumors shows that calcium electroporation is a safe and feasible treatment modality for colorectal cancer. It can be performed as an outpatient treatment and may potentially be of great value for fragile patients with limited treatment options.
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Affiliation(s)
- Malene Broholm
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
| | - Rasmus Vogelsang
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
| | - Mustafa Bulut
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Trine Stigaard
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
| | - Hanne Falk
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
| | - Stine Frandsen
- Center for Experimental Drug and Gene Electrotransfer (C*EDGE), Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Roskilde, Denmark
| | | | - Trine Perner
- Department of Radiology, Zealand University Hospital, Denmark
| | - Anne-Marie Kanstrup Fiehn
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Pathology, Zealand University Hospital, Denmark
| | | | - Michael Bzorek
- Department of Pathology, Zealand University Hospital, Denmark
| | | | | | | | - Ismail Gögenur
- Center for Surgical Science, Department of Surgery, Zealand University Hospital, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Julie Gehl
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Oncology, Herlev and Gentofte Hospital, University of Copenhagen, Herlev, Denmark
- Center for Experimental Drug and Gene Electrotransfer (C*EDGE), Department of Clinical Oncology and Palliative Care, Zealand University Hospital, Roskilde, Denmark
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Zhang H, Kelly K, Lee J, Echeverria D, Cooper D, Panwala R, Chen Z, Gaston N, Newby GA, Xie J, Liu DR, Gao G, Wolfe SA, Khvorova A, Watts JK, Sontheimer EJ. Self-delivering CRISPR RNAs for AAV Co-delivery and Genome Editing in vivo. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.20.533459. [PMID: 36993169 PMCID: PMC10055305 DOI: 10.1101/2023.03.20.533459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Guide RNAs offer programmability for CRISPR-Cas9 genome editing but also add challenges for delivery. Chemical modification, which has been key to the success of oligonucleotide therapeutics, can enhance the stability, distribution, cellular uptake, and safety of nucleic acids. Previously, we engineered heavily and fully modified SpyCas9 crRNA and tracrRNA, which showed enhanced stability and retained activity when delivered to cultured cells in the form of the ribonucleoprotein complex. In this study, we report that a short, fully stabilized oligonucleotide (a "protecting oligo"), which can be displaced by tracrRNA annealing, can significantly enhance the potency and stability of a heavily modified crRNA. Furthermore, protecting oligos allow various bioconjugates to be appended, thereby improving cellular uptake and biodistribution of crRNA in vivo. Finally, we achieved in vivo genome editing in adult mouse liver and central nervous system via co-delivery of unformulated, chemically modified crRNAs with protecting oligos and AAV vectors that express tracrRNA and either SpyCas9 or a base editor derivative. Our proof-of-concept establishment of AAV/crRNA co-delivery offers a route towards transient editing activity, target multiplexing, guide redosing, and vector inactivation.
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Affiliation(s)
- Han Zhang
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Karen Kelly
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Jonathan Lee
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Dimas Echeverria
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - David Cooper
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Rebecca Panwala
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Zexiang Chen
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Nicholas Gaston
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Gregory A. Newby
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, 02142, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, 02139, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts, 02139, USA
| | - Jun Xie
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Viral Vector Core, University of Massachusetts Chan Medical, School, Worcester, MA, 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - David R. Liu
- Merkin Institute of Transformative Technologies in Healthcare, Broad Institute of Harvard and MIT, Cambridge, Massachusetts, 02142, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts, 02139, USA
- Howard Hughes Medical Institute, Harvard University, Cambridge, Massachusetts, 02139, USA
| | - Guangping Gao
- Horae Gene Therapy Center, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Viral Vector Core, University of Massachusetts Chan Medical, School, Worcester, MA, 01605, USA
- Department of Microbiology and Physiological Systems, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Scot A. Wolfe
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, 01605, USA
| | - Anastasia Khvorova
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- NeuroNexus Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Jonathan K. Watts
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Department of Biochemistry and Molecular Biotechnology, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- NeuroNexus Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
| | - Erik J. Sontheimer
- RNA Therapeutics Institute, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Program in Molecular Medicine, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
- Li Weibo Institute for Rare Diseases Research, University of Massachusetts Chan Medical School, Worcester, Massachusetts, 01605, USA
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Tinnirello V, Rabienezhad Ganji N, De Marcos Lousa C, Alessandro R, Raimondo S. Exploiting the Opportunity to Use Plant-Derived Nanoparticles as Delivery Vehicles. PLANTS (BASEL, SWITZERLAND) 2023; 12:1207. [PMID: 36986896 PMCID: PMC10053153 DOI: 10.3390/plants12061207] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/02/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
The scientific community has become increasingly interested in plant-derived nanoparticles (PDNPs) over the past ten years. Given that they possess all the benefits of a drug carrier, including non-toxicity, low immunogenicity, and a lipid bilayer that protects its content, PDNPs are a viable model for the design of innovative delivery systems. In this review, a summary of the prerequisites for mammalian extracellular vesicles to serve as delivery vehicles will be given. After that, we will concentrate on providing a thorough overview of the studies investigating the interactions of plant-derived nanoparticles with mammalian systems as well as the loading strategies for encapsulating therapeutic molecules. Finally, the existing challenges in establishing PDNPs as reliable biological delivery systems will be emphasized.
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Affiliation(s)
- Vincenza Tinnirello
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Nima Rabienezhad Ganji
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Carine De Marcos Lousa
- Biomedical Sciences, School of Health, Leeds Beckett University, Leeds LS1 3HE, UK
- Centre for Plant Sciences, University of Leeds, Leeds LS1 3HE, UK
| | - Riccardo Alessandro
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
| | - Stefania Raimondo
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D), Section of Biology and Genetics, University of Palermo, 90133 Palermo, Italy
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Pan J, Chiang CL, Wang X, Bertani P, Ma Y, Cheng J, Talesara V, Lee LJ, Lu W. Cell membrane damage and cargo delivery in nano-electroporation. NANOSCALE 2023; 15:4080-4089. [PMID: 36744418 DOI: 10.1039/d2nr05575a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Nanochannel electroporation (NEP) is a new technology for cell transfection, which provides superior gene delivery and cell viability to conventional bulk electroporation (BEP). In NEP, the cells laid on a porous substrate are subjected to an asymmetric electric field which induces asymmetric membrane poration. The cell membrane near the channel outlet ('transfection membrane') is porated intensely, allowing direct delivery of genetic materials, while the rest of the cell membrane ('non-transfection membrane') remains much less perturbed for low cellular damage. In this work, the transfection window of NEP for the delivery of different sized molecules is systematically investigated. The results show that small molecules (∼0.6 kDa) can be delivered into cells at a relatively lower voltage without significantly impacting the non-transfection membrane. To deliver larger molecules (∼6 kDa), a higher working voltage is required at the cost of cell viability due to more severe damage of the non-transfection membrane. Through numerical analysis of both transient transmembrane potential (t-TMP) and dynamic transmembrane potential (d-TMP), here we show that the membrane damage on both transfection and non-transfection sides of the cell membrane can be predicted. The agreement between experimental results and numerical analysis provides a comprehensive understanding of cell membrane damage and cargo delivery in NEP.
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Affiliation(s)
- Junjie Pan
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Chi-Ling Chiang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Xinyu Wang
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Paul Bertani
- Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Yifan Ma
- Department of Biomedical Engineering, The Ohio State University, Columbus, Ohio 43210, USA
| | - Junao Cheng
- Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Vishank Talesara
- Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Ly James Lee
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
| | - Wu Lu
- Department of Electrical and Computer Engineering, The Ohio State University, Columbus, Ohio 43210, USA.
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Improvement of transformation efficiency in hypermucoviscous Klebsiella pneumoniae using citric acid. J Microbiol Methods 2023; 205:106673. [PMID: 36638870 DOI: 10.1016/j.mimet.2023.106673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/06/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Abstract
Transformation efficiency is very low in hypermucoviscous Kllebsiella pneumoniae owing to high amount of capsular polysaccharide. Here, we propose a method to improve the transformation in hypermucoviscous K. pneumoniae using citric acid. An increased number of recovered transformants was observed in the strains cultured in the presence of citric acid.
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Nanomaterial-mediated photoporation for intracellular delivery. Acta Biomater 2023; 157:24-48. [PMID: 36584801 DOI: 10.1016/j.actbio.2022.12.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/18/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022]
Abstract
Translocation of extrinsic molecules into living cells is becoming increasingly crucial in biological studies ranging from cell engineering to biomedical applications. The concerns regarding biosafety and immunogenicity for conventional vectors and physical methods yet challenge effective intracellular delivery. Here, we begin with an overview of approaches for trans-membrane delivery up to now. These methods are featured with a relatively mature application but usually encounter low cell survival. Our review then proposes an advanced application for nanomaterial-sensitized photoporation triggered with a laser. We cover the mechanisms, procedures, and outcomes of photoporation-induced intracellular delivery with a highlight on its versatility to different living cells. We hope the review discussed here encourages researchers to further improvement and applications for photoporation-induced intracellular delivery. STATEMENT OF SIGNIFICANCE.
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Choi A, Javius-Jones K, Hong S, Park H. Cell-Based Drug Delivery Systems with Innate Homing Capability as a Novel Nanocarrier Platform. Int J Nanomedicine 2023; 18:509-525. [PMID: 36742991 PMCID: PMC9893846 DOI: 10.2147/ijn.s394389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/12/2023] [Indexed: 01/29/2023] Open
Abstract
Nanoparticle-based drug delivery systems have been designed to treat various diseases. However, many problems remain, such as inadequate tumor targeting and poor therapeutic outcomes. To overcome these obstacles, cell-based drug delivery systems have been developed. Candidates for cell-mediated drug delivery include blood cells, immune cells, and stem cells with innate tumor tropism and low immunogenicity; they act as a disguise to deliver the therapeutic payload. In drug delivery systems, therapeutic agents are encapsulated intracellularly or attached to the surface of the plasma membrane and transported to the desired site. Here, we review the pros and cons of cell-based therapies and discuss their homing mechanisms in the tumor microenvironment. In addition, different strategies to load therapeutic agents inside or on the surface of circulating cells and the current applications for a wide range of disease treatments are summarized.
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Affiliation(s)
- Anseo Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea
| | - Kaila Javius-Jones
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, WI, USA
| | - Seungpyo Hong
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin, Madison, WI, USA
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul, Republic of Korea,Correspondence: Hansoo Park; Seungpyo Hong, School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea, Tel +82-2 820 5804, Fax +82-2 813 8159, Email ;
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