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Mazahir F, Yadav AK. Recent progress in engineered extracellular vesicles and their biomedical applications. Life Sci 2024; 350:122747. [PMID: 38797364 DOI: 10.1016/j.lfs.2024.122747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 05/14/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
AIMS To present the recent update on the isolation, engineering techniques for extracellular vesicles, limitations associated with different isolation techniques, different biomedical applications, and challenges of engineered extracellular vesicles for the benefit of researchers from academic, industry, etc. MATERIALS AND METHODS: Peer-reviewed articles from most recognized journals were collected, and presented information was analyzed to discuss collection, chemical, electroporation, cellular, and membrane surface engineering to design extracellular vesicles for various therapeutic applications. In addition, we present the applications and limitations of techniques for the collection of extracellular vesicles. KEY FINDINGS There is a need for isolation techniques with the gold standard. However, advanced extracellular vesicle isolation techniques showed improved recovery, and purity of extracellular vesicles. Tumor therapy is a major part of the therapy section that illustrates the role of engineered extracellular vesicles in synergetic therapy such as phototherapy, theragnostic, and delivery of genetic materials. In addition, extracellular vesicles have shown their potential in the treatment of retinal disorders, neurodegenerative disease, tuberculosis, osteoporosis, inflammatory bowel disease, vaccine production, and wound healing. SIGNIFICANCE Engineered extracellular vesicles can deliver cargo to the specific cells, elicit an immune response and could be used for the development of the vaccines in the future. However, the progress is at the initial stage. Overall, this review will provide a comprehensive understanding and could serve as a reference for researchers in the clinical translation of engineered extracellular vesicles in different biomedical fields.
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Affiliation(s)
- Farhan Mazahir
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Raebareli, A Transit Campus, Bijnor-Sisendi Road, Bijnor, Lucknow-226002, India
| | - Awesh K Yadav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Raebareli, A Transit Campus, Bijnor-Sisendi Road, Bijnor, Lucknow-226002, India.
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2
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Levin N, Hendler-Neumark A, Kamber D, Bisker G. Enhanced cellular internalization of near-infrared fluorescent single-walled carbon nanotubes facilitated by a transfection reagent. J Colloid Interface Sci 2024; 664:650-666. [PMID: 38490040 DOI: 10.1016/j.jcis.2024.03.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/17/2024]
Abstract
Functionalized single-walled carbon nanotubes (SWCNTs) hold immense potential for diverse biomedical applications due to their biocompatibility and optical properties, including near-infrared fluorescence. Specifically, SWCNTs have been utilized to target cells as a vehicle for drug delivery and gene therapy, and as sensors for various intracellular biomarkers. While the main internalization route of SWCNTs into cells is endocytosis, methods for enhancing the cellular uptake of SWCNTs are of great importance. In this research, we demonstrate the use of a transfecting reagent for promoting cell internalization of functionalized SWCNTs. We explore different types of SWCNT functionalization, namely single-stranded DNA (ssDNA) or polyethylene glycol (PEG)-lipids, and two different cell types, embryonic kidney cells and adenocarcinoma cells. We show that internalizing PEGylated functionalized SWCNTs is enhanced in the presence of the transfecting reagent, where the effect is more pronounced for negatively charged PEG-lipid. However, ssDNA-SWCNTs tend to form aggregates in the presence of the transfecting reagent, rendering it unsuitable for promoting internalization. For all cases, cellular uptake is visualized by near-infrared fluorescence microscopy, showing that the SWCNTs are typically localized within the lysosome. Generally, cellular internalization was higher in the adenocarcinoma cells, thereby paving new avenues for drug delivery and sensing in malignant cells.
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Affiliation(s)
- Naamah Levin
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Adi Hendler-Neumark
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Dotan Kamber
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Gili Bisker
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Physics and Chemistry of Living Systems, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 6997801, Israel; Center for Light-Matter Interaction, Tel Aviv University, Tel Aviv 6997801, Israel.
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Al-Saadi J, Waldén M, Sandell M, Sohlmér J, Grankvist R, Friberger I, Andersson A, Carlsten M, Chien K, Lundberg J, Witman N, Holmin S. Endovascular transplantation of mRNA-enhanced mesenchymal stromal cells results in superior therapeutic protein expression in swine heart. Mol Ther Methods Clin Dev 2024; 32:101225. [PMID: 38516693 PMCID: PMC10950887 DOI: 10.1016/j.omtm.2024.101225] [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: 06/21/2023] [Accepted: 02/23/2024] [Indexed: 03/23/2024]
Abstract
Heart failure has a poor prognosis and no curative treatment exists. Clinical trials are investigating gene- and cell-based therapies to improve cardiac function. The safe and efficient delivery of these therapies to solid organs is challenging. Herein, we demonstrate the feasibility of using an endovascular intramyocardial delivery approach to safely administer mRNA drug products and perform cell transplantation procedures in swine. Using a trans-vessel wall (TW) device, we delivered chemically modified mRNAs (modRNA) and mRNA-enhanced mesenchymal stromal cells expressing vascular endothelial growth factor A (VEGF-A) directly to the heart. We monitored and mapped the cellular distribution, protein expression, and safety tolerability of such an approach. The delivery of modRNA-enhanced cells via the TW device with different flow rates and cell concentrations marginally affect cell viability and protein expression in situ. Implanted cells were found within the myocardium for at least 3 days following administration, without the use of immunomodulation and minimal impact on tissue integrity. Finally, we could increase the protein expression of VEGF-A over 500-fold in the heart using a cell-mediated modRNA delivery system compared with modRNA delivered in saline solution. Ultimately, this method paves the way for future research to pioneer new treatments for cardiac disease.
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Affiliation(s)
- Jonathan Al-Saadi
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
- Department of Neuroradiology, Karolinska University Hospital, 171 64 Stockholm, Sweden
- MedTechLabs, Stockholm, Sweden
| | - Mathias Waldén
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
| | - Mikael Sandell
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
- MedTechLabs, Stockholm, Sweden
- Division of Micro and Nanosystems, KTH Royal Institute of Technology, Malvinas väg 10, 114 28 Stockholm, Sweden
| | - Jesper Sohlmér
- Department of Cell and Molecular Biology, Karolinska Institute, Solnavägen 9, 171 65 Stockholm, Sweden
| | - Rikard Grankvist
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
| | - Ida Friberger
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
| | - Agneta Andersson
- Department of Medicine, Huddinge, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Mattias Carlsten
- Department of Medicine, Huddinge, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Stockholm, Sweden
- Center for Cell Therapy and Allogeneic Stem Cell Transplantation, Karolinska Comprehensive Cancer Center, Karolinska University Hospital, Stockholm, Sweden
| | - Kenneth Chien
- Department of Cell and Molecular Biology, Karolinska Institute, Solnavägen 9, 171 65 Stockholm, Sweden
| | - Johan Lundberg
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
- Department of Neuroradiology, Karolinska University Hospital, 171 64 Stockholm, Sweden
- MedTechLabs, Stockholm, Sweden
| | - Nevin Witman
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
| | - Staffan Holmin
- Department of Clinical Neuroscience, Karolinska Institute, Tomtebodavägen 18A, 171 65 Stockholm, Sweden
- Department of Neuroradiology, Karolinska University Hospital, 171 64 Stockholm, Sweden
- MedTechLabs, Stockholm, Sweden
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Omokungbe B, Centurión A, Stiehler S, Morr A, Vilcinskas A, Steinbrink A, Hardes K. Gene silencing in the aedine cell lines C6/36 and U4.4 using long double-stranded RNA. Parasit Vectors 2024; 17:255. [PMID: 38863029 PMCID: PMC11167938 DOI: 10.1186/s13071-024-06340-3] [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: 03/13/2024] [Accepted: 05/30/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND RNA interference (RNAi) is a target-specific gene silencing method that can be used to determine gene functions and investigate host-pathogen interactions, as well as facilitating the development of ecofriendly pesticides. Commercially available transfection reagents (TRs) can improve the efficacy of RNAi. However, we currently lack a product and protocol for the transfection of insect cell lines with long double-stranded RNA (dsRNA). METHODS We used agarose gel electrophoresis to determine the capacity of eight TRs to form complexes with long dsRNA. A CellTiter-Glo assay was then used to assess the cytotoxicity of the resulting lipoplexes. We also measured the cellular uptake of dsRNA by fluorescence microscopy using the fluorophore Cy3 as a label. Finally, we analyzed the TRs based on their transfection efficacy and compared the RNAi responses of Aedes albopictus C6/36 and U4.4 cells by knocking down an mCherry reporter Semliki Forest virus in both cell lines. RESULTS The TRs from Biontex (K4, Metafectene Pro, and Metafectene SI+) showed the best complexing capacity and the lowest dsRNA:TR ratio needed for complete complex formation. Only HiPerFect was unable to complex the dsRNA completely, even at a ratio of 1:9. Most of the complexes containing mCherry-dsRNA were nontoxic at 2 ng/µL, but Lipofectamine 2000 was toxic at 1 ng/µL in U4.4 cells and at 2 ng/µL in C6/36 cells. The transfection of U4.4 cells with mCherry-dsRNA/TR complexes achieved significant knockdown of the virus reporter. Comparison of the RNAi response in C6/36 and U4.4 cells suggested that C6/36 cells lack the antiviral RNAi response because there was no significant knockdown of the virus reporter in any of the treatments. CONCLUSIONS C6/36 cells have an impaired RNAi response as previously reported. This investigation provides valuable information for future RNAi experiments by showing how to mitigate the adverse effects attributed to TRs. This will facilitate the judicious selection of TRs and transfection conditions conducive to RNAi research in mosquitoes.
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Affiliation(s)
- Bodunrin Omokungbe
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE TBG), Senckenberganlage 25, 60325, Frankfurt Am Main, Germany
- Institute for Insect Biotechnology, Justus-Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Alejandra Centurión
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE TBG), Senckenberganlage 25, 60325, Frankfurt Am Main, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch of Bioresources, Ohlebergsweg 12, 35392, Giessen, Germany
| | - Sabrina Stiehler
- Institute for Insect Biotechnology, Justus-Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Antonia Morr
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch of Bioresources, Ohlebergsweg 12, 35392, Giessen, Germany
| | - Andreas Vilcinskas
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE TBG), Senckenberganlage 25, 60325, Frankfurt Am Main, Germany
- Institute for Insect Biotechnology, Justus-Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch of Bioresources, Ohlebergsweg 12, 35392, Giessen, Germany
| | - Antje Steinbrink
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE TBG), Senckenberganlage 25, 60325, Frankfurt Am Main, Germany
- Institute for Insect Biotechnology, Justus-Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Kornelia Hardes
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE TBG), Senckenberganlage 25, 60325, Frankfurt Am Main, Germany.
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Branch of Bioresources, Ohlebergsweg 12, 35392, Giessen, Germany.
- BMBF Junior Research Group in Infection Research "ASCRIBE", Ohlebergsweg 12, 35392, Giessen, Germany.
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Huang S, Henderson TR, Dojo Soeandy C, Lezhanska A, Henderson JT. An efficient low cost means of biophysical gene transfection in primary cells. Sci Rep 2024; 14:13179. [PMID: 38849388 PMCID: PMC11161637 DOI: 10.1038/s41598-024-62996-y] [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: 10/30/2023] [Accepted: 05/23/2024] [Indexed: 06/09/2024] Open
Abstract
Efficient, facile gene modification of cells has become an indispensable part of modern molecular biology. For the majority of cell lines and several primary populations, such modifications can be readily performed through a variety of methods. However, many primary cell lines such as stem cells frequently suffer from poor transfection efficiency. Though several physical approaches have been introduced to circumvent these issues, they often require expensive/specialized equipment and/or consumables, utilize substantial cell numbers and often still suffer from poor efficiency. Viral methods are capable of transducing difficult cellular populations, however such methods can be time consuming for large arrays of gene targets, present biohazard concerns, and result in expression of viral proteins; issues of concern for certain experimental approaches. We report here a widely applicable, low-cost (< $100 CAD) method of electroporation, applicable to small (1-10 μl) cell volumes and composed of equipment readily available to the average investigator. Using this system we observe a sixfold increase in transfection efficiency in embryonic stem cell lines compared to commercial devices. Due to efficiency gains and reductions in volume and applied voltage, this process improves the survival of sensitive stem cell populations while reducing reagent requirements for protocols such as Cas9/gRNAs transfections.
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Affiliation(s)
- Shudi Huang
- Department of Pharmaceutical Sciences, University of Toronto, 144 College St. Rm 962, Toronto, ON, M5S 3M2, Canada
| | - Tyler R Henderson
- Department of Medical Genetics, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, M5G 1X5, Canada
| | - Chesarahmia Dojo Soeandy
- Tumour Immunotherapy Program Cell Manufacturing Team, Princess Margaret Cancer Centre, University Health Network, 610 University Avenue, Rm 8-207, Toronto, ON, M5G 2M9, Canada
| | - Anastasiya Lezhanska
- Department of Medicine, Queen's University, 94 Stuart Street, Kingston, ON, K7L 3N6, Canada
| | - Jeffrey T Henderson
- Department of Pharmaceutical Sciences, University of Toronto, 144 College St. Rm 962, Toronto, ON, M5S 3M2, Canada.
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Kozyreva ZV, Demina PA, Sapach AY, Terentyeva DA, Gusliakova OI, Abramova AM, Goryacheva IY, Trushina DB, Sukhorukov GB, Sindeeva OA. Multiple dyes applications for fluorescent convertible polymer capsules as macrophages tracking labels. Heliyon 2024; 10:e30680. [PMID: 38813172 PMCID: PMC11133507 DOI: 10.1016/j.heliyon.2024.e30680] [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: 11/16/2023] [Revised: 03/31/2024] [Accepted: 05/01/2024] [Indexed: 05/31/2024] Open
Abstract
Tracing individual cell pathways among the whole population is crucial for understanding their behavior, cell communication, migration dynamics, and fate. Optical labeling is one approach for tracing individual cells, but it typically requires genetic modification to induce the generation of photoconvertible proteins. Nevertheless, this approach has limitations and is not applicable to certain cell types. For instance, genetic modification often leads to the death of macrophages. This study aims to develop an alternative method for labeling macrophages by utilizing photoconvertible micron-sized capsules capable of easy internalization and prolonged retention within cells. Thermal treatment in a polyvinyl alcohol gel medium is employed for the scalable synthesis of capsules with a wide range of fluorescent dyes, including rhodamine 6G, pyronin B, fluorescein, acridine yellow, acridine orange, thiazine red, and previously reported rhodamine B. The fluorescence brightness, photostability, and photoconversion ability of the capsules are evaluated using confocal laser scanning microscopy. Viability, uptake, mobility, and photoconversion studies are conducted on RAW 264.7 and bone marrow-derived macrophages, serving as model cell lines. The production yield of the capsules is increased due to the use of polyvinyl alcohol gel, eliminating the need for conventional filtration steps. Capsules entrapping rhodamine B and rhodamine 6G meet all requirements for intracellular use in individual cell tracking. Mass spectrometry analysis reveals a sequence of deethylation steps that result in blue shifts in the dye spectra upon irradiation. Cellular studies on macrophages demonstrate robust uptake of the capsules. The capsules exhibit minimal cytotoxicity and have a negligible impact on cell motility. The successful photoconversion of RhB-containing capsules within cells highlights their potential as alternatives to photoconvertible proteins for individual cell labeling, with promising applications in personalized medicine.
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Affiliation(s)
- Zhanna V. Kozyreva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
| | - Polina A. Demina
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012, Saratov, Russia
| | - Anastasiia Yu Sapach
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
| | - Daria A. Terentyeva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
| | - Olga I. Gusliakova
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012, Saratov, Russia
| | - Anna M. Abramova
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012, Saratov, Russia
| | - Irina Yu Goryacheva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012, Saratov, Russia
| | - Daria B. Trushina
- Institute of Molecular Theranostics, Sechenov University, 8-2 Trubetskaya Str., 119991, Moscow, Russia
| | - Gleb B. Sukhorukov
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
- Life Improvement by Future Technologies (LIFT) Center, Skolkovo, 143025, Moscow, Russia
| | - Olga A. Sindeeva
- Vladimir Zelman Center for Neurobiology and Brain Rehabilitation, Skolkovo Institute of Science and Technology, 30 b.1 Bolshoy Boulevard, 121205, Moscow, Russia
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Prasher P, Sharma M, Agarwal V, Singh SK, Gupta G, Dureja H, Dua K. Cationic cycloamylose based nucleic acid nanocarriers. Chem Biol Interact 2024; 395:111000. [PMID: 38614318 DOI: 10.1016/j.cbi.2024.111000] [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: 12/09/2023] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/15/2024]
Abstract
Nucleic acid delivery by viral and non-viral methods has been a cornerstone for the contemporary gene therapy aimed at correcting the defective genes, replacing of the missing genes, or downregulating the expression of anomalous genes is highly desirable for the management of various diseases. Ostensibly, it becomes paramount for the delivery vectors to intersect the biological barriers for accessing their destined site within the cellular environment. However, the lipophilic nature of biological membranes and their potential to limit the entry of large sized, charged, hydrophilic molecules thus presenting a sizeable challenge for the cellular integration of negatively charged nucleic acids. Furthermore, the susceptibility of nucleic acids towards the degrading enzymes (nucleases) in the lysosomes present in cytoplasm is another matter of concern for their cellular and nuclear delivery. Hence, there is a pressing need for the identification and development of cationic delivery systems which encapsulate the cargo nucleic acids where the charge facilitates their cellular entry by evading the membrane barriers, and the encapsulation shields them from the enzymatic attack in cytoplasm. Cycloamylose bearing a closed loop conformation presents a robust candidature in this regard owing to its remarkable encapsulating tendency towards nucleic acids including siRNA, CpG DNA, and siRNA. The presence of numerous hydroxyl groups on the cycloamylose periphery provides sites for its chemical modification for the introduction of cationic groups, including spermine, (3-Chloro-2 hydroxypropyl) trimethylammonium chloride (Q188), and diethyl aminoethane (DEAE). The resulting cationic cycloamylose possesses a remarkable transfection efficiency and provides stability to cargo oligonucleotides against endonucleases, in addition to modulating the undesirable side effects such as unwanted immune stimulation. Cycloamylose is known to interact with the cell membranes where they release certain membrane components such as phospholipids and cholesterol thereby resulting in membrane destabilization and permeabilization. Furthermore, cycloamylose derivatives also serve as formulation excipients for improving the efficiency of other gene delivery systems. This review delves into the various vector and non-vector-based gene delivery systems, their advantages, and limitations, eventually leading to the identification of cycloamylose as an ideal candidate for nucleic acid delivery. The synthesis of cationic cycloamylose is briefly discussed in each section followed by its application for specific delivery/transfection of a particular nucleic acid.
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Affiliation(s)
- Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun, 248007, India.
| | - Mousmee Sharma
- Department of Chemistry, Uttaranchal University, Dehradun, 248007, India
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Faculty of Health, Australian Research Center in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; School of Medical and Life Sciences, Sunway University, 47500 Sunway City, Malaysia
| | - Gaurav Gupta
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India; Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman 346, United Arab Emirates
| | - Harish Dureja
- Department of Pharmaceutical Sciences, Maharishi Dayanand University, Rohtak, 124001, India
| | - Kamal Dua
- Faculty of Health, Australian Research Center in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
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8
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Jamour P, Jamali A, Langeroudi AG, Sharafabad BE, Abdoli A. Comparing chemical transfection, electroporation, and lentiviral vector transduction to achieve optimal transfection conditions in the Vero cell line. BMC Mol Cell Biol 2024; 25:15. [PMID: 38741034 PMCID: PMC11089686 DOI: 10.1186/s12860-024-00511-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 04/17/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Transfection is an important analytical method for studying gene expression in the cellular environment. There are some barriers to efficient DNA transfection in host cells, including circumventing the plasma membrane, escaping endosomal compartmentalization, autophagy, immune sensing pathways, and translocating the nuclear envelope. Therefore, it would be very useful to introduce an optimum transfection approach to achieve a high transfection efficiency in the Vero cell line. The aim of this study was to compare various transfection techniques and introduce a highly efficient method for gene delivery in Vero cells. METHODS In the current study, three transfection methods were used, including chemical transfection, electroporation, and lentiviral vector transduction, to obtain the optimum transfection conditions in the Vero cell line. Vero cells were cultured and transfected with chemical transfection reagents, electroporation, or HIV-1-based lentivectors under different experimental conditions. Transfection efficiency was assessed using flow cytometry and fluorescence microscopy to detect GFP-positive cells. RESULTS Among the tested methods, TurboFect™ chemical transfection exhibited the highest efficiency. Optimal transfection conditions were achieved using 1 µg DNA and 4 µL TurboFect™ in 6 × 104 Vero cells. CONCLUSION TurboFect™, a cationic polymer transfection reagent, demonstrated superior transfection efficiency in Vero cells compared with electroporation and lentivirus particles, and is the optimal choice for chemical transfection in the Vero cell line.
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Affiliation(s)
- Parisa Jamour
- Department of Hepatitis and HIV, Pasteur Institute of Iran, Tehran, Iran
- Student Research Committee, Pasteur Institute of Iran, Tehran, Iran
| | - Abbas Jamali
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran
| | - Arash Ghalyanchi Langeroudi
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Behrouz Ebadi Sharafabad
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Asghar Abdoli
- Department of Hepatitis and HIV, Pasteur Institute of Iran, Tehran, Iran.
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Sarihan M, Kasap M, Akpinar G. Streamlined Biotinylation, Enrichment and Analysis for Enhanced Plasma Membrane Protein Identification Using TurboID and TurboID-Start Biotin Ligases. J Membr Biol 2024; 257:91-105. [PMID: 38289568 DOI: 10.1007/s00232-023-00303-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/23/2023] [Indexed: 04/11/2024]
Abstract
Plasma membrane proteins (PMPs) play pivotal roles in various cellular events and are crucial in disease pathogenesis, making their comprehensive characterization vital for biomedical research. However, the hydrophobic nature and low expression levels of PMPs pose challenges for conventional enrichment methods, hindering their identification and functional profiling. In this study, we presented a novel TurboID-based enrichment approach for PMPs that helped overcoming some of the existing limitations. We evaluated the efficacy of TurboID and its modified form, TurboID-START, in PMP enrichment, achieving efficient and targeted labelling of PMPs without the need for stable cell line generation. This approach resulted reduction in non-specific biotinylation events, leading to improved PMP enrichment and enabled assessment of the subcellular proteome associated with the plasma membrane. Our findings paved the way for studies targeting the dynamic nature of the plasma membrane proteome and aiming to capture transient associations of proteins with the plasma membrane. The novel TurboID-based enrichment approach presented here offers promising prospects for in-depth investigations into PMPs and their roles in cellular processes.
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Affiliation(s)
- Mehmet Sarihan
- Department of Medical Biology/Proteomics Laboratory, Kocaeli University Medical School, 41001, Umuttepe, Kocaeli, Turkey
| | - Murat Kasap
- Department of Medical Biology/Proteomics Laboratory, Kocaeli University Medical School, 41001, Umuttepe, Kocaeli, Turkey.
| | - Gurler Akpinar
- Department of Medical Biology/Proteomics Laboratory, Kocaeli University Medical School, 41001, Umuttepe, Kocaeli, Turkey
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10
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Chao G, Zukin S, Fortuna PRJ, Boettner B, Church GM. Progress and limitations in engineering cellular adhesion for research and therapeutics. Trends Cell Biol 2024; 34:277-287. [PMID: 37580241 DOI: 10.1016/j.tcb.2023.07.007] [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: 05/03/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 08/16/2023]
Abstract
Intercellular interactions form the cornerstone of multicellular biology. Despite advances in protein engineering, researchers artificially directing physical cell interactions still rely on endogenous cell adhesion molecules (CAMs) alongside off-target interactions and unintended signaling. Recently, methods for directing cellular interactions have been developed utilizing programmable domains such as coiled coils (CCs), nanobody-antigen, and single-stranded DNA (ssDNA). We first discuss desirable molecular- and systems-level properties in engineered CAMs, using the helixCAM platform as a benchmark. Next, we propose applications for engineered CAMs in immunology, developmental biology, tissue engineering, and neuroscience. Biologists in various fields can readily adapt current engineered CAMs to establish control over cell interactions, and their utilization in basic and translational research will incentivize further expansion in engineered CAM capabilities.
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Affiliation(s)
- George Chao
- Department of Genetics, Harvard Medical School, Boston, MA, USA.
| | - Stefan Zukin
- Wyss Institute, Harvard Medical School, Boston, MA, USA
| | | | | | - George M Church
- Department of Genetics, Harvard Medical School, Boston, MA, USA; Wyss Institute, Harvard Medical School, Boston, MA, USA.
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11
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Mapfumo PP, Reichel LS, Hoeppener S, Traeger A. Improving Gene Delivery: Synergy between Alkyl Chain Length and Lipoic Acid for PDMAEMA Hydrophobic Copolymers. Macromol Rapid Commun 2024; 45:e2300649. [PMID: 38195002 DOI: 10.1002/marc.202300649] [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: 11/12/2023] [Revised: 12/31/2023] [Indexed: 01/11/2024]
Abstract
In the field of gene delivery, hydrophobic cationic copolymers hold great promise. They exhibit improved performance by effectively protecting genetic material from serum interactions while facilitating interactions with cellular membranes. However, managing cytotoxicity remains a significant challenge, prompting an investigation into suitable hydrophobic components. A particularly encouraging approach involves integrating nutrient components, like lipoic acid, which is known for its antioxidant properties and diverse cellular benefits such as cellular metabolism and growth. In this study, a copolymer library comprising 2-(dimethylamino)ethyl methacrylate (DMAEMA) and lipoic acid methacrylate (LAMA), combined with either n-butyl methacrylate (nBMA), ethyl methacrylate (EMA), or methyl methacrylate (MMA), is synthesized. This enables to probe the impact of lipoic acid incorporation while simultaneously exploring the influence of pendant acyclic alkyl chain length. The inclusion of lipoic acid results in a notable boost in transfection efficiency while maintaining low cytotoxicity. Interestingly, higher levels of transfection efficiency are achieved in the presence of nBMA, EMA, or MMA. However, a positive correlation between pendant acyclic alkyl chain length and cytotoxicity is observed. Consequently, P(DMAEMA-co-LAMA-co-MMA), emerges as a promising candidate. This is attributed to the optimal combination of low cytotoxic MMA and transfection-boosting LAMA, highlighting the crucial synergy between LAMA and MMA.
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Affiliation(s)
- Prosper P Mapfumo
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Liên S Reichel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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12
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Long J, Wang Y, Jiang X, Ge J, Chen M, Zheng B, Wang R, Wang M, Xu M, Ke Q, Wang J. Nanomaterials Boost CAR-T Therapy for Solid Tumors. Adv Healthc Mater 2024:e2304615. [PMID: 38483400 DOI: 10.1002/adhm.202304615] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/29/2024] [Indexed: 05/22/2024]
Abstract
T cell engineering, particularly via chimeric antigen receptor (CAR) modifications for enhancing tumor specificity, has shown efficacy in treating hematologic malignancies. The extension of CAR-T cell therapy to solid tumors, however, is impeded by several challenges: The absence of tumor-specific antigens, antigen heterogeneity, a complex immunosuppressive tumor microenvironment, and physical barriers to cell infiltration. Additionally, limitations in CAR-T cell manufacturing capacity and the high costs associated with these therapies restrict their widespread application. The integration of nanomaterials into CAR-T cell production and application offers a promising avenue to mitigate these challenges. Utilizing nanomaterials in the production of CAR-T cells can decrease product variability and lower production expenses, positively impacting the targeting and persistence of CAR-T cells in treatment and minimizing adverse effects. This review comprehensively evaluates the use of various nanomaterials in the production of CAR-T cells, genetic modification, and in vivo delivery. It discusses their underlying mechanisms and potential for clinical application, with a focus on improving specificity and safety in CAR-T cell therapy.
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Affiliation(s)
- Jun Long
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, China
| | - Yian Wang
- The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, School of Medicine, Hunan Normal University, The Engineering Research Center of Reproduction and Translational Medicine of Hunan Province, Changsha, 410013, China
| | - Xianjie Jiang
- Hunan Key Laboratory of Cancer Metabolism, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
| | - Junshang Ge
- Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Cancer Research Institute and School of Basic Medicine Sciences, Central South University, Changsha, 410078, China
| | - Mingfen Chen
- Department of Radiation Oncology, The Second Affiliated Hospital of Fujian Medical University, Fujian Medical University, Quanzhou, 362000, China
| | - Boshu Zheng
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
| | - Rong Wang
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
| | - Meifeng Wang
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
| | - Meifang Xu
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
| | - Qi Ke
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
| | - Jie Wang
- Department of Pathology and Institute of Oncology, The School of Basic Medical Sciences & Diagnostic Pathology Center, Fujian Medical University, No.1 Xuefu North Road University Town, Fuzhou, 350122, China
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13
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Ponta S, Bonato A, Neidenbach P, Bruhin VF, Laurent A, Applegate LA, Zenobi-Wong M, Barreto G. Streamlined, single-step non-viral CRISPR-Cas9 knockout strategy enhances gene editing efficiency in primary human chondrocyte populations. Arthritis Res Ther 2024; 26:66. [PMID: 38468277 PMCID: PMC10926593 DOI: 10.1186/s13075-024-03294-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 02/26/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND CRISPR-Cas9-based genome engineering represents a powerful therapeutic tool for cartilage tissue engineering and for understanding molecular pathways driving cartilage diseases. However, primary chondrocytes are difficult to transfect and rapidly dedifferentiate during monolayer (2D) cell culture, making the lengthy expansion of a single-cell-derived edited clonal population not feasible. For this reason, functional genetics studies focused on cartilage and rheumatic diseases have long been carried out in cellular models that poorly recapitulate the native molecular properties of human cartilaginous tissue (e.g., cell lines, induced pluripotent stem cells). Here, we set out to develop a non-viral CRISPR-Cas9, bulk-gene editing method suitable for chondrocyte populations from different cartilaginous sources. METHODS We screened electroporation and lipid nanoparticles for ribonucleoprotein (RNP) delivery in primary polydactyly chondrocytes, and optimized RNP reagents assembly. We knocked out RELA (also known as p65), a subunit of the nuclear factor kappa B (NF-κB), in polydactyly chondrocytes and further characterized knockout (KO) cells with RT-qPCR and Western Blot. We tested RELA KO in chondrocytes from diverse cartilaginous sources and characterized their phenotype with RT-qPCR. We examined the chondrogenic potential of wild-type (WT) and KO cell pellets in presence and absence of interleukin-1β (IL-1β). RESULTS We established electroporation as the optimal transfection technique for chondrocytes enhancing transfection and editing efficiency, while preserving high cell viability. We knocked out RELA with an unprecedented efficiency of ~90%, confirming lower inflammatory pathways activation upon IL-1β stimulation compared to unedited cells. Our protocol could be easily transferred to primary human chondrocytes harvested from osteoarthritis (OA) patients, human FE002 chondroprogenitor cells, bovine chondrocytes, and a human chondrocyte cell line, achieving comparable mean RELA KO editing levels using the same protocol. All KO pellets from primary human chondrocytes retained chondrogenic ability equivalent to WT cells, and additionally displayed enhanced matrix retention under inflamed conditions. CONCLUSIONS We showcased the applicability of our bulk gene editing method to develop effective autologous and allogeneic off-the-shelf gene therapies strategies and to enable functional genetics studies in human chondrocytes to unravel molecular mechanisms of cartilage diseases.
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Affiliation(s)
- Simone Ponta
- Department of Health Sciences and Technology, ETH Zürich, Zurich, 8093, Switzerland
| | - Angela Bonato
- Department of Health Sciences and Technology, ETH Zürich, Zurich, 8093, Switzerland
| | - Philipp Neidenbach
- Schulthess Clinic, Department of Lower Extremity Orthopaedics, Musculoskeletal Centre, Zurich, 8008, Switzerland
| | - Valentino F Bruhin
- Schulthess Clinic, Department of Lower Extremity Orthopaedics, Musculoskeletal Centre, Zurich, 8008, Switzerland
| | - Alexis Laurent
- Regenerative Therapy Unit, Plastic, Reconstructive & Hand Surgery Service, Lausanne University Hospital, University of Lausanne, Epalinges, 1066, Switzerland
| | - Lee Ann Applegate
- Regenerative Therapy Unit, Plastic, Reconstructive & Hand Surgery Service, Lausanne University Hospital, University of Lausanne, Epalinges, 1066, Switzerland
| | - Marcy Zenobi-Wong
- Department of Health Sciences and Technology, ETH Zürich, Zurich, 8093, Switzerland
| | - Goncalo Barreto
- Clinicum, Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, 00014, Finland.
- Medical Ultrasonics Laboratory (MEDUSA), Department of Neuroscience and Biomedical Engineering, Aalto University, Espoo, 02150, Finland.
- Orton Orthopedic Hospital, Tenholantie 10, Helsinki, 00280, Finland.
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14
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Algarra M, Gonzalez-Muñoz E. Efficient and scalable gene delivery method with easily generated cationic carbon dots. Biol Proced Online 2024; 26:6. [PMID: 38459492 PMCID: PMC10921679 DOI: 10.1186/s12575-024-00232-7] [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: 10/23/2023] [Accepted: 02/28/2024] [Indexed: 03/10/2024] Open
Abstract
Gene delivery is a complex process with several challenges when attempting to incorporate genetic material efficiently and safely into target cells. Some of the key challenges include not only efficient cellular uptake and endosomal escape to ensure that the genetic material can exert its effect but also minimizing the toxicity of the delivery system, which is vital for safe gene delivery. Of importance, if gene delivery systems are intended for biomedical applications or clinical use, they must be scalable and easy and affordable to manufacture to meet the demand. Here, we show an efficient gene delivery method using a combination of carbon dots coated by PEI through electrostatic binding to easily generate cationic carbon dots. We show a biofunctional approach to generate optimal cationic carbon dots (CCDs) that can be scaled up to meet specific transfection demands. CCDs improve cell viability and increase transfection efficiency four times over the standard of PEI polyplexes. Generated CCDs enabled the challenging transfection protocol to produce retroviral vectors via cell cotransfection of three different plasmids into packing cells, showing not only high efficiency but also functionality of the gene delivery, tested as the capacity to produce infective retroviral particles.
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Affiliation(s)
- Manuel Algarra
- INAMAT2-Institute for Advanced Materials and Mathematics, Department of Science, Public University of Navarra, 31006, Pamplona, Spain
| | - Elena Gonzalez-Muñoz
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA plataforma BIONAND) C/ Severo Ochoa, 35, Málaga, Spain.
- Departamento de Biología Celular Genética y Fisiología, Universidad de Málaga, 29071, Málaga, Spain.
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15
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Karbassi E, Padgett R, Bertero A, Reinecke H, Klaiman JM, Yang X, Hauschka SD, Murry CE. Targeted CRISPR activation is functional in engineered human pluripotent stem cells but undergoes silencing after differentiation into cardiomyocytes and endothelium. Cell Mol Life Sci 2024; 81:95. [PMID: 38372898 PMCID: PMC10876724 DOI: 10.1007/s00018-023-05101-2] [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: 11/08/2023] [Revised: 12/11/2023] [Accepted: 12/19/2023] [Indexed: 02/20/2024]
Abstract
Human induced pluripotent stem cells (hiPSCs) offer opportunities to study human biology where primary cell types are limited. CRISPR technology allows forward genetic screens using engineered Cas9-expressing cells. Here, we sought to generate a CRISPR activation (CRISPRa) hiPSC line to activate endogenous genes during pluripotency and differentiation. We first targeted catalytically inactive Cas9 fused to VP64, p65 and Rta activators (dCas9-VPR) regulated by the constitutive CAG promoter to the AAVS1 safe harbor site. These CRISPRa hiPSC lines effectively activate target genes in pluripotency, however the dCas9-VPR transgene expression is silenced after differentiation into cardiomyocytes and endothelial cells. To understand this silencing, we systematically tested different safe harbor sites and different promoters. Targeting to safe harbor sites hROSA26 and CLYBL loci also yielded hiPSCs that expressed dCas9-VPR in pluripotency but silenced during differentiation. Muscle-specific regulatory cassettes, derived from cardiac troponin T or muscle creatine kinase promoters, were also silent after differentiation when dCas9-VPR was introduced. In contrast, in cell lines where the dCas9-VPR sequence was replaced with cDNAs encoding fluorescent proteins, expression persisted during differentiation in all loci and with all promoters. Promoter DNA was hypermethylated in CRISPRa-engineered lines, and demethylation with 5-azacytidine enhanced dCas9-VPR gene expression. In summary, the dCas9-VPR cDNA is readily expressed from multiple loci during pluripotency but induces silencing in a locus- and promoter-independent manner during differentiation to mesoderm derivatives. Researchers intending to use this CRISPRa strategy during stem cell differentiation should pilot their system to ensure it remains active in their population of interest.
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Affiliation(s)
- Elaheh Karbassi
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Ruby Padgett
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Alessandro Bertero
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
- Molecular Biotechnology Center "Guido Tarone", Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, 10126, Italy
| | - Hans Reinecke
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Jordan M Klaiman
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Xiulan Yang
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Stephen D Hauschka
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
- Center for Translational Muscle Research, University of Washington, Seattle, WA, 98109, USA
- Department of Biochemistry, University of Washington, Seattle, WA, 98109, USA
| | - Charles E Murry
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA.
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA.
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195, USA.
- Division of Cardiology, Department of Medicine, University of Washington, Seattle, WA, 98195, USA.
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA.
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16
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Chao YW, Lee YL, Tseng CS, Wang LUH, Hsia KC, Chen H, Fustin JM, Azeem S, Chang TT, Chen CY, Kung FC, Hsueh YP, Huang YS, Chao HW. Improved CaP Nanoparticles for Nucleic Acid and Protein Delivery to Neural Primary Cultures and Stem Cells. ACS NANO 2024; 18:4822-4839. [PMID: 38285698 PMCID: PMC10867895 DOI: 10.1021/acsnano.3c09608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
Efficiently delivering exogenous materials into primary neurons and neural stem cells (NSCs) has long been a challenge in neurobiology. Existing methods have struggled with complex protocols, unreliable reproducibility, high immunogenicity, and cytotoxicity, causing a huge conundrum and hindering in-depth analyses. Here, we establish a cutting-edge method for transfecting primary neurons and NSCs, named teleofection, by a two-step process to enhance the formation of biocompatible calcium phosphate (CaP) nanoparticles. Teleofection enables both nucleic acid and protein transfection into primary neurons and NSCs, eliminating the need for specialized skills and equipment. It can easily fine-tune transfection efficiency by adjusting the incubation time and nanoparticle quantity, catering to various experimental requirements. Teleofection's versatility allows for the delivery of different cargos into the same cell culture, whether simultaneously or sequentially. This flexibility proves invaluable for long-term studies, enabling the monitoring of neural development and synapse plasticity. Moreover, teleofection ensures the consistent and robust expression of delivered genes, facilitating molecular and biochemical investigations. Teleofection represents a significant advancement in neurobiology, which has promise to transcend the limitations of current gene delivery methods. It offers a user-friendly, cost-effective, and reproducible approach for researchers, potentially revolutionizing our understanding of brain function and development.
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Affiliation(s)
- Yu-Wen Chao
- Department
of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Graduate
Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Yen-Lurk Lee
- Institute
of Molecular Biology, Academia Sinica, Taipei 115201, Taiwan
- Institute
of Biomedical Sciences, Academia Sinica, Taipei 115201, Taiwan
| | - Ching-San Tseng
- Department
of Anatomy, School of Medicine, China Medical
University, Taichung 40402, Taiwan
| | - Lily Ueh-Hsi Wang
- Institute
of Molecular Biology, Academia Sinica, Taipei 115201, Taiwan
| | - Kuo-Chiang Hsia
- Institute
of Molecular Biology, Academia Sinica, Taipei 115201, Taiwan
| | - Huatao Chen
- Department
of Clinical Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
- Key
Laboratory of Animal Biotechnology of the Ministry of Agriculture
and Rural Affairs, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jean-Michel Fustin
- The
University of Manchester, Faculty of Biology, Medicine and Health, Oxford Road, Manchester M13 9PL, U.K.
| | - Sayma Azeem
- Institute
of Biomedical Sciences, Academia Sinica, Taipei 115201, Taiwan
- Taiwan
International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming Chao-Tung University and Academia
Sinica, Taipei 115201, Taiwan
| | - Tzu-Tung Chang
- Institute
of Biomedical Sciences, Academia Sinica, Taipei 115201, Taiwan
| | - Chiung-Ya Chen
- Institute
of Molecular Biology, Academia Sinica, Taipei 115201, Taiwan
| | - Fan-Che Kung
- Institute
of Biomedical Sciences, Academia Sinica, Taipei 115201, Taiwan
| | - Yi-Ping Hsueh
- Institute
of Molecular Biology, Academia Sinica, Taipei 115201, Taiwan
| | - Yi-Shuian Huang
- Institute
of Biomedical Sciences, Academia Sinica, Taipei 115201, Taiwan
- Taiwan
International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming Chao-Tung University and Academia
Sinica, Taipei 115201, Taiwan
- Institute
of Molecular Medicine, College of Medicine, National Taiwan University, Taipei 10002, Taiwan
| | - Hsu-Wen Chao
- Department
of Physiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Graduate
Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Department
of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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17
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Nair VS, Watson K. A Novel, Fully Automated, and Reagent-Agnostic Transient Transfection Protocol. Curr Protoc 2024; 4:e968. [PMID: 38314959 DOI: 10.1002/cpz1.968] [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: 02/07/2024]
Abstract
Transfection is a potent technique to introduce foreign nucleic acids into eukaryotic cells. The capacity of the technique to alter the genetic content of host cells means it is useful for a wide range of applications, including the study of typical cellular processes, disease molecular mechanisms, and gene therapy effects. Here, we discuss a highly reliable and fully automated transient transfection protocol that utilizes an open-source liquid handler and accompanying HEPA Module. Two commonly used transfection reagents are employed to study the transfection efficiency in two cell lines with a GFP plasmid construct. The detailed method of the protocol, image acquisition, and analysis for evaluating transfection efficacy is provided. With HeLa cells, the transfection efficiency of the reagents ranges from 40.92% to 73.26%, while with the difficult-to-transfect A549 cells, the transfection efficiency is between 42.15% and 54%. The efficiency achieved is comparable to similar experiments performed manually. © 2024 Wiley Periodicals LLC. Basic Protocol 1: Seeding of adherent cells (A549 and HeLa) for transient transfection on a Costar 6-well plate using a liquid handler on Day 0 Basic Protocol 2: Transfection of the cell lines using the transfection reagents Lipofectamine 3000 and FuGENE HD on Day 1 Support Protocol: Image acquisition and semi-quantitative analysis of transfection after 24 hr to calculate the transfection efficiency.
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18
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Custódio TF, Guédez G, Löw C. Transient Co-expression of Membrane Protein Complexes in Mammalian Cells. Methods Mol Biol 2024; 2810:11-28. [PMID: 38926270 DOI: 10.1007/978-1-0716-3878-1_2] [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: 06/28/2024]
Abstract
Membrane proteins are essential components of biological membranes with key roles in cellular processes such as nutrient transport, cell communication, signaling, or energy conversion. Due to their crucial functions, membrane proteins and their complexes are often targets for therapeutic interventions. Expression and purification of membrane proteins are often a bottleneck to yield sufficient material for structural studies and further downstream characterization. Taking advantage of the Expi293 expression system for the production of eukaryotic proteins, we present a very efficient and fast protocol for the co-expression of a membrane complex. Here, we use transient transfection to co-express the membrane transporter PHT1 with its adaptor protein TASL. To allow the simultaneous screening of different proteins, constructs, or interaction partners, we make use of the Twin-Strep magnetic system. The protocol can be applied for small-scale screening of any membrane protein alone or co-expressed with interacting partners followed by large-scale production and purification of a potential membrane protein complex.
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Affiliation(s)
- Tânia F Custódio
- Centre for Structural Systems Biology (CSSB), Hamburg, Germany.
- European Molecular Biology Laboratory (EMBL) Hamburg, Hamburg, Germany.
| | - Gabriela Guédez
- Centre for Structural Systems Biology (CSSB), Hamburg, Germany
- European Molecular Biology Laboratory (EMBL) Hamburg, Hamburg, Germany
| | - Christian Löw
- Centre for Structural Systems Biology (CSSB), Hamburg, Germany.
- European Molecular Biology Laboratory (EMBL) Hamburg, Hamburg, Germany.
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19
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Stuart L. Production and Purification of Antibodies in Chinese Hamster Ovary Cells. Methods Mol Biol 2024; 2762:183-190. [PMID: 38315366 DOI: 10.1007/978-1-0716-3666-4_11] [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: 02/07/2024]
Abstract
Antibodies are versatile biological molecules with widespread applications in research and medicine. This protocol outlines the generation of monoclonal IgG antibodies from Chinese hamster ovary cells. It includes steps for cell maintenance, transient transfection, and antibody purification via protein A affinity chromatography. The methods described are intended for the production of milligram amounts of protein but can be adapted for most small- to mid-scale applications.
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20
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Alkharobi H. Exploring Various Transfection Approaches and Their Applications in Studying the Regenerative Potential of Dental Pulp Stem Cells. Curr Issues Mol Biol 2023; 45:10026-10040. [PMID: 38132472 PMCID: PMC10742526 DOI: 10.3390/cimb45120626] [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: 10/23/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Transfection is a contemporary approach for introducing foreign genetic material into target cells. The effective transport of genetic materials into cells is mostly influenced by (a) the characteristics of the genetic material (quantity and quality), (b) the transfection procedure (incubation time, ratio of the reagents to the introduced genetic material, and components of cell culture), and (c) targeted cells for transfection (cell origin and cell type). This review summarizes the findings of different studies focusing on various transfection approaches and their applications to explore the regenerative potential of dental pulp stem cells (DPSCs). Several databases, including Scopus, Google Scholar, and PubMed, were searched to obtain the literature for the current review. Different keywords were used as key terms in the search. Approximately 200 articles were retained after removing duplicates from different databases. Articles published in English that discussed different transfection approaches were included. Several sources were excluded because they did not meet the inclusion criteria. Approximately 70 relevant published sources were included in the final stage to achieve the study objectives. This review demonstrated that no single transfection system is applicable to all cases and the various cell types with no side effects. Further studies are needed to focus on optimizing process parameters, decreasing the toxicity and side effects of available transfection techniques, and increasing their efficiencies. Moreover, this review sheds light on the impact of using different valuable transfection approaches to investigate the regenerative potential of DPSCs.
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Affiliation(s)
- Hanaa Alkharobi
- Department of Oral Biology, College of Dentistry, King Abdul-Aziz University, Jeddah 21589, Saudi Arabia
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21
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González-Martínez I, Cerro-Herreros E, Moreno N, García-Rey A, Espinosa-Espinosa J, Carrascosa-Sàez M, Piqueras-Losilla D, Arzumanov A, Seoane-Miraz D, Jad Y, Raz R, Wood MJ, Varela MA, Llamusí B, Artero R. Peptide-conjugated antimiRs improve myotonic dystrophy type 1 phenotypes by promoting endogenous MBNL1 expression. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 34:102024. [PMID: 37744174 PMCID: PMC10514136 DOI: 10.1016/j.omtn.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/01/2023] [Indexed: 09/26/2023]
Abstract
Myotonic dystrophy type 1 (DM1) is a rare neuromuscular disease caused by a CTG repeat expansion in the DMPK gene that generates toxic RNA with a myriad of downstream alterations in RNA metabolism. A key consequence is the sequestration of alternative splicing regulatory proteins MBNL1/2 by expanded transcripts in the affected tissues. MBNL1/2 depletion interferes with a developmental alternative splicing switch that causes the expression of fetal isoforms in adults. Boosting the endogenous expression of MBNL proteins by inhibiting the natural translational repressors miR-23b and miR-218 has previously been shown to be a promising therapeutic approach. We designed antimiRs against both miRNAs with a phosphorodiamidate morpholino oligonucleotide (PMO) chemistry conjugated to cell-penetrating peptides (CPPs) to improve delivery to affected tissues. In DM1 cells, CPP-PMOs significantly increased MBNL1 levels. In some candidates, this was achieved using concentrations less than two orders of magnitude below the median toxic concentration, with up to 5.38-fold better therapeutic window than previous antagomiRs. In HSALR mice, intravenous injections of CPP-PMOs improve molecular, histopathological, and functional phenotypes, without signs of toxicity. Our findings place CPP-PMOs as promising antimiR candidates to overcome the treatment delivery challenge in DM1 therapy.
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Affiliation(s)
- Irene González-Martínez
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
| | - Estefanía Cerro-Herreros
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
| | - Nerea Moreno
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
| | - Andrea García-Rey
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
| | - Jorge Espinosa-Espinosa
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
- Group of Emerging and Neglected Diseases, Ecoepidemiology and Biodiversity, Health Sciences Faculty, Universidad Internacional SEK, Quito 170521, Ecuador
| | - Marc Carrascosa-Sàez
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
| | - Diego Piqueras-Losilla
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
| | - Andrey Arzumanov
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - David Seoane-Miraz
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - Yahya Jad
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - Richard Raz
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - Matthew J. Wood
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - Miguel A. Varela
- Department of Paediatrics, Institute of Developmental and Regenerative Medicine (IDRM), University of Oxford, Roosevelt Dr, Oxford OX3 7TY, UK
- MDUK Oxford Neuromuscular Centre, University of Oxford, Oxford, UK
| | - Beatriz Llamusí
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
| | - Rubén Artero
- University Research Institute for Biotechnology and Biomedicine (BIOTECMED), Universidad de Valencia, Valencia, Spain
- Translational Genomics Group, INCLIVA Biomedical Research Institute, Avenue Menéndez Pelayo 4 acc, 46010 Valencia, Spain
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22
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Guo X, Ma Y, Wang H, Yin H, Shi X, Chen Y, Gao G, Sun L, Wang J, Wang Y, Fan D. Status and developmental trends in recombinant collagen preparation technology. Regen Biomater 2023; 11:rbad106. [PMID: 38173768 PMCID: PMC10761200 DOI: 10.1093/rb/rbad106] [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: 09/27/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 01/05/2024] Open
Abstract
Recombinant collagen is a pivotal topic in foundational biological research and epitomizes the application of critical bioengineering technologies. These technological advancements have profound implications across diverse areas such as regenerative medicine, organ replacement, tissue engineering, cosmetics and more. Thus, recombinant collagen and its preparation methodologies rooted in genetically engineered cells mark pivotal milestones in medical product research. This article provides a comprehensive overview of the current genetic engineering technologies and methods used in the production of recombinant collagen, as well as the conventional production process and quality control detection methods for this material. Furthermore, the discussion extends to foresee the strides in physical transfection and magnetic control sorting studies, envisioning an enhanced preparation of recombinant collagen-seeded cells to further fuel recombinant collagen production.
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Affiliation(s)
- Xiaolei Guo
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing 100081, China
| | - Yuan Ma
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
| | - Hang Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Hongping Yin
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Xinli Shi
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing 100081, China
| | - Yiqin Chen
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
| | - Guobiao Gao
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing 100081, China
| | - Lei Sun
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing 100081, China
| | - Jiadao Wang
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials & College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Daidi Fan
- Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710127, China
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23
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Liang Y, Xu Q, Gao Q. Advancing CAR-based immunotherapies in solid tumors: CAR- macrophages and neutrophils. Front Immunol 2023; 14:1291619. [PMID: 38090576 PMCID: PMC10715261 DOI: 10.3389/fimmu.2023.1291619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
Macrophages and neutrophils are the main components of the innate immune system and play important roles in promoting angiogenesis, extracellular matrix remodeling, cancer cell proliferation, and metastasis in the tumor microenvironment (TME). They can also be harnessed to mediate cytotoxic tumor killing effects and orchestrate effective anti-tumor immune responses with proper stimulation and modification. Therefore, macrophages and neutrophils have strong potential in cancer immunotherapy. In this review, we briefly outlined the applications of macrophages or neutrophils in adoptive cell therapies, and focused on chimeric antigen receptor (CAR)-engineered macrophages (CAR-Ms) and neutrophils (CAR-Ns). We summarized the construction strategies, the preclinical and clinical studies of CAR-Ms and CAR-Ns. In the end, we briefly discussed the limitations and challenges of CAR-Ms and CAR-Ns, as well as future research directions to extend their applications in treating solid tumors.
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Affiliation(s)
- Yanling Liang
- Institute of Cancer Research, Shenzhen Bay Laboratory, Shenzhen, China
- Human Phenome Institute, Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai, China
| | - Qumiao Xu
- BGI Research, Hangzhou, China
- BGI Research, Shenzhen, China
| | - Qianqian Gao
- Institute of Cancer Research, Shenzhen Bay Laboratory, Shenzhen, China
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24
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Bibi S, Nisar M, Rafique S, Waqas M, Zahoor M, Idrees M, Nazir N, Ihsan M, Salmen SH, Alharbi SA, Khan A, Al-Harrasi A. Harnessing Nature's Gifts: Salix nigra and Its Potential for Combating Hepatitis C Virus (HCV). ACS OMEGA 2023; 8:42987-42999. [PMID: 38024752 PMCID: PMC10653063 DOI: 10.1021/acsomega.3c06193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/26/2023] [Indexed: 12/01/2023]
Abstract
Hepatitis C virus (HCV) causes various liver complications, including fibrosis, cirrhosis, and steatosis, and finally progresses toward hepatocellular carcinoma (HCC). The current study aimed to explore the antiviral activity of the traditional Pakistani medicinal plant Salix nigra (S. nigra) known as black willow against the hepatitis C virus (HCV). The anti-HCV activity of S. nigra was established against stable Hep G2 cell lines expressing the HCV NS3 gene. Various plant-derived compounds with anti-HCV activity were identified, making phytotherapy a promising alternative to conventional treatments due to their cost-effectiveness and milder side effects. The two extraction methods (Maceration and Soxhlet) and four solvents (n-hexane, methanol, ethyl acetate, and water) were used to obtain crude extracts from S. nigra. Cytotoxicity testing showed that methanol (CC50 25 μg/mL) and water (CC50 30 μg/mL) extracts were highly toxic, while ethyl acetate and n-hexane (CC50 > 200 μg/mL) extracts were nontoxic at low concentrations (10-50 μg/mL), making them suitable for further anti-HCV investigations. Stable transfection of the NS3 gene was successfully performed in Hep G2 cells, creating a cellular expression system for studying virus-host interaction. The ethyl acetate extract of S. nigra exhibited significant inhibition of NS3 gene expression (mRNA and protein levels). The phytochemical analysis of S. nigra was also performed using the high-performance liquid chromatography (HPLC) technique. The phytochemical analysis identified several polyphenolic substances in the extracts of S. nigra. Our results concluded that the extracts of S. nigra have significantly reduced the expression of the NS3 gene at mRNA and protein levels. These findings contribute to the global efforts to combat hepatitis C by offering plant-based treatment options for HCV management.
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Affiliation(s)
- Sadia Bibi
- Department
of Botany, University of Malakand, Dir (Lower), Chakdara 18800, Khyber
Pakhtunkhwa, Pakistan
| | - Mohammad Nisar
- Department
of Botany, University of Malakand, Dir (Lower), Chakdara 18800, Khyber
Pakhtunkhwa, Pakistan
| | - Shazia Rafique
- Division
of Molecular Virology, Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore 54590, Pakistan
| | - Muhammad Waqas
- Department
of Biotechnology and Genetic Engineering, Hazara University Mansehra, Mansehra 2100, Pakistan
- Natural and
Medical Sciences Research Center, University
of Nizwa, Birkat Al Mauz, P.O Box 33, 616Nizwa, Sultanate of Oman
| | - Muhammad Zahoor
- Department
of Biochemistry, University of Malakand, Dir (Lower), Chakdara 18800, Khyber
Pakhtunkhwa, Pakistan
| | - Muhammad Idrees
- Division
of Molecular Virology, Centre of Excellence in Molecular Biology (CEMB), University of the Punjab, Lahore 54590, Pakistan
| | - Nausheen Nazir
- Department
of Biochemistry, University of Malakand, Dir (Lower), Chakdara 18800, Khyber
Pakhtunkhwa, Pakistan
| | - Mohammad Ihsan
- Department
of Botany, University of Malakand, Dir (Lower), Chakdara 18800, Khyber
Pakhtunkhwa, Pakistan
| | - Saleh H. Salmen
- Department
of Botany and Microbiology, College of Science, King Saud University, PO Box −2455, Riyadh 11451, Saudi Arabia
| | - Sulaiman Ali Alharbi
- Department
of Botany and Microbiology, College of Science, King Saud University, PO Box −2455, Riyadh 11451, Saudi Arabia
| | - Ajmal Khan
- Natural and
Medical Sciences Research Center, University
of Nizwa, Birkat Al Mauz, P.O Box 33, 616Nizwa, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural and
Medical Sciences Research Center, University
of Nizwa, Birkat Al Mauz, P.O Box 33, 616Nizwa, Sultanate of Oman
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25
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Morant L, Petrovic-Erfurth ML, Jordanova A. An Adapted GeneSwitch Toolkit for Comparable Cellular and Animal Models: A Proof of Concept in Modeling Charcot-Marie-Tooth Neuropathy. Int J Mol Sci 2023; 24:16138. [PMID: 38003325 PMCID: PMC10670994 DOI: 10.3390/ijms242216138] [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: 09/29/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023] Open
Abstract
Investigating the impact of disease-causing mutations, their affected pathways, and/or potential therapeutic strategies using disease modeling often requires the generation of different in vivo and in cellulo models. To date, several approaches have been established to induce transgene expression in a controlled manner in different model systems. Several rounds of subcloning are, however, required, depending on the model organism used, thus bringing labor-intensive experiments into the technical approach and analysis comparison. The GeneSwitch™ technology is an adapted version of the classical UAS-GAL4 inducible system, allowing the spatial and temporal modulation of transgene expression. It consists of three components: a plasmid encoding for the chimeric regulatory pSwitch protein, Mifepristone as an inducer, and an inducible plasmid. While the pSwitch-containing first plasmid can be used both in vivo and in cellulo, the inducible second plasmid can only be used in cellulo. This requires a specific subcloning strategy of the inducible plasmid tailored to the model organism used. To avoid this step and unify gene expression in the transgenic models generated, we replaced the backbone vector with standard pUAS-attB plasmid for both plasmids containing either the chimeric GeneSwitch™ cDNA sequence or the transgene cDNA sequence. We optimized this adapted system to regulate transgene expression in several mammalian cell lines. Moreover, we took advantage of this new system to generate unified cellular and fruit fly models for YARS1-induced Charco-Marie-Tooth neuropathy (CMT). These new models displayed the expected CMT-like phenotypes. In the N2a neuroblastoma cells expressing YARS1 transgenes, we observed the typical "teardrop" distribution of the synthetase that was perturbed when expressing the YARS1CMT mutation. In flies, the ubiquitous expression of YARS1CMT induced dose-dependent developmental lethality and pan-neuronal expression caused locomotor deficit, while expression of the wild-type allele was harmless. Our proof-of-concept disease modeling studies support the efficacy of the adapted transgenesis system as a powerful tool allowing the design of studies with optimal data comparability.
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Affiliation(s)
- Laura Morant
- Center for Molecular Neurology, VIB, University of Antwerp, 2610 Antwerpen, Belgium; (L.M.); (M.-L.P.-E.)
- Department of Biomedical Sciences, University of Antwerp, 2610 Antwerpen, Belgium
| | - Maria-Luise Petrovic-Erfurth
- Center for Molecular Neurology, VIB, University of Antwerp, 2610 Antwerpen, Belgium; (L.M.); (M.-L.P.-E.)
- Department of Biomedical Sciences, University of Antwerp, 2610 Antwerpen, Belgium
| | - Albena Jordanova
- Center for Molecular Neurology, VIB, University of Antwerp, 2610 Antwerpen, Belgium; (L.M.); (M.-L.P.-E.)
- Department of Biomedical Sciences, University of Antwerp, 2610 Antwerpen, Belgium
- Molecular Medicine Center, Department of Medical Chemistry and Biochemistry, Faculty of Medicine, Medical University-Sofia, 1431 Sofia, Bulgaria
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26
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Alfei S. Cationic Materials for Gene Therapy: A Look Back to the Birth and Development of 2,2-Bis-(hydroxymethyl)Propanoic Acid-Based Dendrimer Scaffolds. Int J Mol Sci 2023; 24:16006. [PMID: 37958989 PMCID: PMC10649874 DOI: 10.3390/ijms242116006] [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: 10/14/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Gene therapy is extensively studied as a realistic and promising therapeutic approach for treating inherited and acquired diseases by repairing defective genes through introducing (transfection) the "healthy" genetic material in the diseased cells. To succeed, the proper DNA or RNA fragments need efficient vectors, and viruses are endowed with excellent transfection efficiency and have been extensively exploited. Due to several drawbacks related to their use, nonviral cationic materials, including lipidic, polymeric, and dendrimer vectors capable of electrostatically interacting with anionic phosphate groups of genetic material, represent appealing alternative options to viral carriers. Particularly, dendrimers are highly branched, nanosized synthetic polymers characterized by a globular structure, low polydispersity index, presence of internal cavities, and a large number of peripheral functional groups exploitable to bind cationic moieties. Dendrimers are successful in several biomedical applications and are currently extensively studied for nonviral gene delivery. Among dendrimers, those derived by 2,2-bis(hydroxymethyl)propanoic acid (b-HMPA), having, unlike PAMAMs, a neutral polyester-based scaffold, could be particularly good-looking due to their degradability in vivo. Here, an overview of gene therapy, its objectives and challenges, and the main cationic materials studied for transporting and delivering genetic materials have been reported. Subsequently, due to their high potential for application in vivo, we have focused on the biodegradable dendrimer scaffolds, telling the history of the birth and development of b-HMPA-derived dendrimers. Finally, thanks to a personal experience in the synthesis of b-HMPA-based dendrimers, our contribution to this field has been described. In particular, we have enriched this work by reporting about the b-HMPA-based derivatives peripherally functionalized with amino acids prepared by us in recent years, thus rendering this paper original and different from the existing reviews.
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Affiliation(s)
- Silvana Alfei
- Department of Pharmacy, University of Genoa, Viale Cembrano 4, 16148 Genova, Italy
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27
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Wells-Holland C, Elfick A. Transfection reflections: fit-for-purpose delivery of nucleic acids. Nat Rev Mol Cell Biol 2023; 24:771-772. [PMID: 37344633 DOI: 10.1038/s41580-023-00627-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023]
Affiliation(s)
- Chris Wells-Holland
- UK Centre for Mammalian Synthetic Biology and Institute for Bioengineering, School of Engineering, University of Edinburgh, Edinburgh, UK
| | - Alistair Elfick
- UK Centre for Mammalian Synthetic Biology and Institute for Bioengineering, School of Engineering, University of Edinburgh, Edinburgh, UK.
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28
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Zhao Y, Gan L, Ke D, Chen Q, Fu Y. Mechanisms and research advances in mRNA antibody drug-mediated passive immunotherapy. J Transl Med 2023; 21:693. [PMID: 37794448 PMCID: PMC10552228 DOI: 10.1186/s12967-023-04553-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 09/22/2023] [Indexed: 10/06/2023] Open
Abstract
Antibody technology is widely used in the fields of biomedical and clinical therapies. Nonetheless, the complex in vitro expression of recombinant proteins, long production cycles, and harsh storage conditions have limited their applications in medicine, especially in clinical therapies. Recently, this dilemma has been overcome to a certain extent by the development of mRNA delivery systems, in which antibody-encoding mRNAs are enclosed in nanomaterials and delivered to the body. On entering the cytoplasm, the mRNAs immediately bind to ribosomes and undergo translation and post-translational modifications. This process produces monoclonal or bispecific antibodies that act directly on the patient. Additionally, it eliminates the cumbersome process of in vitro protein expression and extends the half-life of short-lived proteins, which significantly reduces the cost and duration of antibody production. This review focuses on the benefits and drawbacks of mRNA antibodies compared with the traditional in vitro expressed antibodies. In addition, it elucidates the progress of mRNA antibodies in the prevention of infectious diseases and oncology therapy.
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Affiliation(s)
- Yuxiang Zhao
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian, PR China
| | - Linchuan Gan
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian, PR China
| | - Dangjin Ke
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian, PR China
| | - Qi Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian, PR China.
| | - Yajuan Fu
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian, PR China.
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29
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Sreedevi PR, Suresh K. Cold atmospheric plasma mediated cell membrane permeation and gene delivery-empirical interventions and pertinence. Adv Colloid Interface Sci 2023; 320:102989. [PMID: 37677997 DOI: 10.1016/j.cis.2023.102989] [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: 06/11/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/09/2023]
Abstract
Delivery of genetic material to cells is an integral tool to analyze and reveal the genetic interventions in normal cellular processes and differentiation, disease development and for gene therapy. It has profound applications in pharmaceutical, agricultural, environmental and biotechnological sectors. The major methods relied for gene delivery or transfection requires either viral vectors or xenogenic carrier molecules, which renders probabilistic carcinogenic, immunogenic and toxic effects. A newly evolved physical method, Cold atmospheric plasma induced transfection neither needs vector nor carriers. The 4th state of matter 'Plasma' is a quasineutral ionized gas-containing ions, neutral atoms, electrons and reactive radical molecules; and possess electric and magnetic field, along with emanating photons and UV radiations. Plasma produced at atmospheric pressure conditions, and having room temperature is conferred as Low temperature plasma or Cold atmospheric plasma. Selective and controlled application of cold atmospheric plasma on tissues creates temporary, restorable pores on cell membranes that could be diligently manipulated for gene delivery. Research in this regard attained pace since 2016. Cold atmospheric plasma induces transfection by lipid peroxidation, electroporation, and clathrin dependent endocytosis in cell membranes, by virtue of its reactive radicals and electric field. Plasma formed reactive radicals, especially 'OH' penetrates to the cell membrane and cleaves the phosphate head group of membrane lipids, peroxidize and detaches fatty acid tails. This decreases membrane thickness, increases membrane fluidity and permeability. Simultaneously plasma formed ions, electrons and reactive radicals accumulate over cells, generating local electric field and neutralize the negative charge of cell membrane. This induces stress on cell membrane and disrupts its structural integrity, by infringing the dynamic equilibrium between surface tension, spatial repulsion and linear tension between the head groups of phospholipids, generating minute pores. Neutralization of membrane charge promote foreign, external plasmid and gene movement towards cells and its enhanced binding with ligands and receptors on cell membrane, instigating clathrin dependent endocytosis. In vitro and in vivo studies have successfully delivered plasmids, linear DNA, siRNA and miRNA to several established cell lines like, HeLa, PC12, CHL, HUVEC, Jurkat, MCF, SH-SY5Y, HT, B16F10, HaCaT, LP-1, etc., and live C57BL/6 and BALB/c mice, using cold atmospheric plasma. This review delineates the cell surface mechanism of plasma-induced transfection, critically summarizes the research progress in this context, plasma devices used, and the inimitable features of this method. Metabolic activity, cell function, and viability are not adversely affected by this process; moreover, the cell permeating plasma-formed reactive radicals are effectively defended by cellular antioxidant mechanisms like superoxide dismutase, glutathione reductase and cytokines, alleviating its toxicity. A deeper understanding on mechanism of plasma action on cells, its aftermath, and the research status in this field would provide a better insight on future avenues of research.
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Affiliation(s)
- P R Sreedevi
- Cold Plasma Bio-research Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India.
| | - K Suresh
- Cold Plasma Bio-research Laboratory, Department of Physics, Bharathiar University, Coimbatore 641046, Tamil Nadu, India.
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30
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Schenkel L, Wang X, Le N, Burger M, Kroschewski R. A dedicated cytoplasmic container collects extrachromosomal DNA away from the mammalian nucleus. Mol Biol Cell 2023; 34:ar105. [PMID: 37556227 PMCID: PMC10559310 DOI: 10.1091/mbc.e23-04-0118] [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: 05/08/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/11/2023] Open
Abstract
Expression from transfected plasmid DNA is generally transient, but it is unclear what process terminates it. We show that DNA entering mammalian cells is rapidly surrounded by a double membrane in the cytoplasm, in some cases after leaving the nucleus. This cytoplasmic container, termed exclusome, frequently also contains extrachromosomal telomeric DNA, and is maintained by the cell over several division cycles. The exclusome envelope contains endoplasmic reticulum proteins and the inner-nuclear membrane proteins Lap2β and Emerin, but differs from the nuclear envelope by its fenestrations and the absence of the Lamin B Receptor and nuclear pore complexes. Reduction of exclusome frequency upon overexpressing Emerin's LEM-domain suggests a role for Emerin in plasmid DNA compartmentalization. Thus, cells distinguish extrachromosomal DNA and chromosomes and wrap them into similar yet distinct envelopes keeping the former in the exclusome but the latter in the nucleus, where transcription occurs.
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Affiliation(s)
- Laura Schenkel
- Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich, Otto-Stern-Weg 3, 8093 Zürich, Switzerland
- Molecular Life Science PhD Program, Life Science Zurich Graduate School, 8057 Zurich, Switzerland
| | - Xuan Wang
- Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich, Otto-Stern-Weg 3, 8093 Zürich, Switzerland
- Molecular Life Science PhD Program, Life Science Zurich Graduate School, 8057 Zurich, Switzerland
| | - Nhung Le
- Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich, Otto-Stern-Weg 3, 8093 Zürich, Switzerland
- Molecular Life Science PhD Program, Life Science Zurich Graduate School, 8057 Zurich, Switzerland
| | - Michael Burger
- Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich, Otto-Stern-Weg 3, 8093 Zürich, Switzerland
| | - Ruth Kroschewski
- Institute of Biochemistry, Eidgenössische Technische Hochschule Zürich, Otto-Stern-Weg 3, 8093 Zürich, Switzerland
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Dubey AK, Mostafavi E. Biomaterials-mediated CRISPR/Cas9 delivery: recent challenges and opportunities in gene therapy. Front Chem 2023; 11:1259435. [PMID: 37841202 PMCID: PMC10568484 DOI: 10.3389/fchem.2023.1259435] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
The use of biomaterials in delivering CRISPR/Cas9 for gene therapy in infectious diseases holds tremendous potential. This innovative approach combines the advantages of CRISPR/Cas9 with the protective properties of biomaterials, enabling accurate and efficient gene editing while enhancing safety. Biomaterials play a vital role in shielding CRISPR/Cas9 components, such as lipid nanoparticles or viral vectors, from immunological processes and degradation, extending their effectiveness. By utilizing the flexibility of biomaterials, tailored systems can be designed to address specific genetic diseases, paving the way for personalized therapeutics. Furthermore, this delivery method offers promising avenues in combating viral illnesses by precisely modifying pathogen genomes, and reducing their pathogenicity. Biomaterials facilitate site-specific gene modifications, ensuring effective delivery to infected cells while minimizing off-target effects. However, challenges remain, including optimizing delivery efficiency, reducing off-target effects, ensuring long-term safety, and establishing scalable production techniques. Thorough research, pre-clinical investigations, and rigorous safety evaluations are imperative for successful translation from the laboratory to clinical applications. In this review, we discussed how CRISPR/Cas9 delivery using biomaterials revolutionizes gene therapy and infectious disease treatment, offering precise and safe editing capabilities with the potential to significantly improve human health and quality of life.
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Affiliation(s)
- Ankit Kumar Dubey
- Global Research and Publishing Foundation, New Delhi, India
- Institute of Scholars, Bengaluru, Karnataka, India
| | - Ebrahim Mostafavi
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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Cho MJ, Kim CE, Shin YH, Kim JK, Pack CG. Influence of Chemical and Genetic Manipulations on Cellular Organelles Quantified by Label-Free Optical Diffraction Tomography. Anal Chem 2023; 95:13478-13487. [PMID: 37523497 DOI: 10.1021/acs.analchem.3c01349] [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: 08/02/2023]
Abstract
Label-free optical diffraction tomography provides three-dimensional imaging of cells and organelles, along with their refractive index (RI) and volume. These physical parameters are valuable for quantitative and accurate analysis of the subcellular microenvironment and its connections to intracellular biological properties. In biological and biochemical cell analysis, various invasive cell manipulations are used, such as temperature change, chemical fixation, live cell staining with fluorescent dye, and gene overexpression of exogenous proteins. However, it is not fully understood how these various manipulations affect the physicochemical properties of different organelles. In this study, we investigated the impact of these manipulations on the cellular properties of single HeLa cells. We found that after cell fixation and an increase in temperature, the RI value of organelles, such as the nucleus and cytoplasm, significantly decreased overall. Interestingly, unlike the cell nuclei, cytoplasmic RI values were hardly detected after membrane permeation, indicating that only intracytoplasmic components were largely lost. Additionally, our findings revealed that the expression of GFP and GFP-tagged proteins significantly increased the RI values of organelles in living cells compared to the less effective RI changes observed with chemical fluorescence staining for cell organelles. The result demonstrates that distinct types of invasive manipulations can alter the microenvironment of organelles in different ways. Our study sheds new light on how chemical and genetic manipulations affect organelles.
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Affiliation(s)
- Min Ju Cho
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Chae-Eun Kim
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Yeon Hui Shin
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jun Ki Kim
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Biomedical Engineering, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Chan-Gi Pack
- Asan Institute for Life Sciences, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Biomedical Engineering, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
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Daigle N, Duan S, Song H, Lima N, Sontz R, Merchant JL, Sawyer TW. Wide field-of-view fluorescence imaging for organ-level lineage tracing of rare intestinal stem cell populations. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:096004. [PMID: 37711357 PMCID: PMC10499363 DOI: 10.1117/1.jbo.28.9.096004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/31/2023] [Accepted: 08/31/2023] [Indexed: 09/16/2023]
Abstract
Significance Lineage tracing using fluorescent reporters is a common tool for monitoring the expression of genes and transcription factors in stem cell populations and their progeny. The zinc-binding protein 89 (ZBP-89/Zfp148 mouse gene) is a transcription factor that plays a role in gastrointestinal (GI) stem cell maintenance and cellular differentiation and has been linked to the progression of colon cancer. While lineage tracing is a useful tool, it is commonly performed with high-magnification microscopy on a small field of view within tissue sections, thereby limiting the ability to resolve reporter expression at the organ level. Furthermore, this technique requires extensive tissue processing, which is time consuming and requires euthanizing the animal. Further knowledge could be elucidated by measuring the expression of fluorescent reporters across entire organs with minimal tissue processing. Aim We present the application of wide-field fluorescence imaging for whole-organ lineage tracing of an inducible Zfp148-tdTomato-expressing transgenic mouse line to assess the expression of ZBP-89/Zfp148 in the GI tract. Approach We measured tdTomato fluorescence in ex vivo organs at time points between 24 h and 6 months post-induction. Fluctuations in tdTomato expression were validated by fluorescence microscopy of tissue sections. Results Quantification of the wide field-of-view images showed a statistically significant increase in fluorescent signal across the GI tract between transgenic mice and littermate controls. The results also showed a gradient of decreasing reporter expression from proximal to distal intestine, suggesting a higher abundance of ZBP-89 expressing stem cells, or higher expression of ZBP-89 within the stem cells, in the proximal intestine. Conclusions We demonstrate that wide-field fluorescence imaging is a valuable tool for monitoring whole-organ expression of fluorescent reporters. This technique could potentially be applied in vivo for longitudinal assessment of a single animal, further enhancing our ability to resolve rare stem cell lineages spatially and temporally.
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Affiliation(s)
- Noelle Daigle
- University of Arizona, Wyant College of Optical Sciences, Tucson, Arizona, United States
| | - Suzann Duan
- University of Arizona, College of Medicine, Tucson, Arizona, United States
| | - Heyu Song
- University of Arizona, College of Medicine, Tucson, Arizona, United States
| | - Natzem Lima
- University of Arizona, Wyant College of Optical Sciences, Tucson, Arizona, United States
| | - Ricky Sontz
- University of Arizona, College of Medicine, Tucson, Arizona, United States
| | | | - Travis W. Sawyer
- University of Arizona, Wyant College of Optical Sciences, Tucson, Arizona, United States
- University of Arizona, College of Medicine, Tucson, Arizona, United States
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Mohammadkhani N, Rahimpour A, Hoseinpoor R, Rajabibazl M. Development of Stable CHO-K1 Cell Lines Overexpressing Full-Length Human CD20 Antigen. IRANIAN BIOMEDICAL JOURNAL 2023; 27:269-79. [PMID: 37873643 PMCID: PMC10707815 DOI: 10.61186/ibj.27.5.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/19/2023] [Indexed: 12/17/2023]
Abstract
Background CD20 is a differentiation-related antigen exclusively expressed on the membrane of B lymphocytes. CD20 amplification is observed in numerous immune-related disorders, making it an ideal target for immunotherapy of hematological malignancies and autoimmune diseases. MAb-based therapies targeting CD20 have a principal role in the treatment of several immune-related disordes and cancers, including CLL. Fc gamma receptors mediate CD20 internalization in hematopoietic cells; therefore, this study aimed to establish non-hematopoietic stable cell lines overexpressing full-length human CD20 antigen as an in vitro model for CD20-related studies. Methods CD20 gene was cloned into the transfer vector. The lentivirus system was transfected to packaging HEK 293T cells, and the supernatants were harvested. CHO-K1 cells were transduced using recombinant viruses, and a stable cell pool was developed by the antibiotic selection. CD20 expression was confirmed at the mRNA and protein levels. Results Simultaneous expression of GFP protein facilitated the detection of CD20-expressing cells. Immunophenotyping analysis of stable clones demonstrated expression of CD20 antigen. In addition, the mean fluorescence intensity was significantly higher in the CD20-CHO-K1 clones than the wild-type CHO-K1 cells. Conclusion This study is the first report on using second-generation lentiviral vectors for the establishment of a non-hematopoietic cell-based system, which stably expresses full-length human CD20 antigen. Results of stable CHO cell lines with different levels of CD20 antigen are well suited to be used for CD20-based investigations, including binding and functional assays.
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Affiliation(s)
- Niloufar Mohammadkhani
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azam Rahimpour
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Reyhaneh Hoseinpoor
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoumeh Rajabibazl
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Tymecka M, Hac-Wydro K, Obloza M, Bonarek P, Kaminski K. The Use of a Barley-Based Well to Define Cationic Betaglucan to Study Mammalian Cell Toxicity Associated with Interactions with Biological Structures. Pharmaceutics 2023; 15:2009. [PMID: 37514195 PMCID: PMC10385077 DOI: 10.3390/pharmaceutics15072009] [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: 06/23/2023] [Revised: 07/18/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023] Open
Abstract
Among potential macromolecule-based pharmaceuticals, polycations seem particularly interesting due to their proven antimicrobial properties and use as vectors in gene therapy. This makes an understanding of the mechanisms of these molecules' interaction with living structures important, so the goal of this paper was to propose and carry out experiments that will allow us to characterize these phenomena. Of particular importance is the question of toxicity of such structures to mammalian cells and, in the work presented here, two lines, normal fibroblasts 3T3-L1 and A549 lung cancer, were used to determine this. In this work, three well-defined cationic derivatives of barley-derived betaglucans obtained in a reaction with glycidyltrimethylammonium chloride (BBGGTMAC) with different degrees of cationization (50, 70, and 100% per one glucose unit) and electrostatic charge were studied. The studies address interactions of these polymers with proteins (bovine serum proteins and BSA), nucleic acids (DNA), glycosaminoglycans (heparin), and biological membranes. The results described in this study make it possible to indicate that toxicity is most strongly influenced by interactions with biological membranes and is closely related to the electrostatic charge of the macromolecule. The presentation of this observation was the goal of this publication. This paper also shows, using fluorescently labeled variants of polymers, the penetration and impact on cell structure (only for the polymer with the highest substitution binding to cell membranes is observed) by using confocal and SEM (for the polymer with the highest degree of substitution, and the appearance of additional structures on the surface of the cell membrane is observed). The labeled polymers are also tools used together with dynamic light scattering and calorimetric titration to study their interaction with other biopolymers. As for the interactions with biological membranes, lipid Langmuir monolayers as model membrane systems were used.
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Affiliation(s)
- Malgorzata Tymecka
- Doctoral School of Exact and Natural Sciences, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Katarzyna Hac-Wydro
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Magdalena Obloza
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Piotr Bonarek
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland
| | - Kamil Kaminski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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Wang Y, Zhang K, Zhao Y, Li Y, Su W, Li S. Construction and Applications of Mammalian Cell-Based DNA-Encoded Peptide/Protein Libraries. ACS Synth Biol 2023; 12:1874-1888. [PMID: 37315219 DOI: 10.1021/acssynbio.3c00043] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
DNA-encoded peptide/protein libraries are the starting point for protein evolutionary modification and functional peptide/antibody selection. Different display technologies, protein directed evolution, and deep mutational scanning (DMS) experiments employ DNA-encoded libraries to provide sequence variations for downstream affinity- or function-based selections. Mammalian cells promise the inherent post-translational modification and near-to-natural conformation of exogenously expressed mammalian proteins and thus are the best platform for studying transmembrane proteins or human disease-related proteins. However, due to the current technical bottlenecks of constructing mammalian cell-based large size DNA-encoded libraries, the advantages of mammalian cells as screening platforms have not been fully exploited. In this review, we summarize the current efforts in constructing DNA-encoded libraries in mammalian cells and the existing applications of these libraries in different fields.
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Affiliation(s)
- Yi Wang
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Kaili Zhang
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yanjie Zhao
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Yifan Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Weijun Su
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Shuai Li
- Department of Breast Cancer Pathology and Research Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer; Key Laboratory of Cancer Prevention and Therapy, Tianjin; Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
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Samanta A, Lufkin T, Kraus P. Intervertebral disc degeneration-Current therapeutic options and challenges. Front Public Health 2023; 11:1156749. [PMID: 37483952 PMCID: PMC10359191 DOI: 10.3389/fpubh.2023.1156749] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/12/2023] [Indexed: 07/25/2023] Open
Abstract
Degeneration of the intervertebral disc (IVD) is a normal part of aging. Due to the spine's declining function and the development of pain, it may affect one's physical health, mental health, and socioeconomic status. Most of the intervertebral disc degeneration (IVDD) therapies today focus on the symptoms of low back pain rather than the underlying etiology or mechanical function of the disc. The deteriorated disc is typically not restored by conservative or surgical therapies that largely focus on correcting symptoms and structural abnormalities. To enhance the clinical outcome and the quality of life of a patient, several therapeutic modalities have been created. In this review, we discuss genetic and environmental causes of IVDD and describe promising modern endogenous and exogenous therapeutic approaches including their applicability and relevance to the degeneration process.
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Yde Ohki CM, Walter NM, Rickli M, Salazar Campos JM, Werling AM, Döring C, Walitza S, Grünblatt E. Protocol for a Wnt reporter assay to measure its activity in human neural stem cells derived from induced pluripotent stem cells. CURRENT RESEARCH IN NEUROBIOLOGY 2023; 5:100095. [PMID: 37426743 PMCID: PMC10329100 DOI: 10.1016/j.crneur.2023.100095] [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: 03/13/2023] [Revised: 05/24/2023] [Accepted: 06/08/2023] [Indexed: 07/11/2023] Open
Abstract
The canonical Wnt signaling is an essential pathway that regulates cellular proliferation, maturation, and differentiation during neurodevelopment and maintenance of adult tissue homeostasis. This pathway has been implicated with the pathophysiology of neuropsychiatric disorders and was associated with cognitive processes, such as learning and memory. However, the molecular investigation of the Wnt signaling in functional human neural cell lines might be challenging since brain biopsies are not possible and animal models may not represent the polygenic profile of some neurological and neurodevelopmental disorders. In this context, using induced pluripotent stem cells (iPSCs) has become a powerful tool to model disorders that affect the Central Nervous System (CNS) in vitro, by maintaining patients' genetic backgrounds. In this method paper, we report the development of a virus-free Wnt reporter assay in neural stem cells (NSCs) derived from human iPSCs from two healthy individuals, by using a vector containing a reporter gene (luc2P) under the control of a TCF/LEF (T-cell factor/lymphoid enhancer factor) responsive element. Dose-response curve analysis from this luciferase-based method might be useful when testing the activity of the Wnt signaling pathway after agonists (e.g. Wnt3a) or antagonists (e.g. DKK1) administration, comparing activity between cases and controls in distinct disorders. Using such a reporter assay method may help to elucidate whether neurological or neurodevelopmental mental disorders show alterations in this pathway, and testing whether targeted treatment may reverse these. Therefore, our established assay aims to help researchers on the functional and molecular investigation of the Wnt pathway in patient-specific cell types comprising several neuropsychiatric disorders.
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Affiliation(s)
- Cristine Marie Yde Ohki
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Biomedicine PhD Program, University of Zurich, Winterthurerstrasse 11, 8057, Zurich, Switzerland
| | - Natalie Monet Walter
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Michelle Rickli
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - José Maria Salazar Campos
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Anna Maria Werling
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Christian Döring
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Susanne Walitza
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Neuroscience Center Zurich, University of Zurich and the ETH Zurich, Winterthurerstrasse 11, 8057, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Winterthurerstrasse 11, 8057, Zurich, Switzerland
| | - Edna Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, Translational Molecular Psychiatry, Psychiatric University Hospital Zurich, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
- Neuroscience Center Zurich, University of Zurich and the ETH Zurich, Winterthurerstrasse 11, 8057, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Winterthurerstrasse 11, 8057, Zurich, Switzerland
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Stark MC, Joubert AM, Visagie MH. Molecular Farming of Pembrolizumab and Nivolumab. Int J Mol Sci 2023; 24:10045. [PMID: 37373192 DOI: 10.3390/ijms241210045] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/10/2023] [Indexed: 06/29/2023] Open
Abstract
Immune checkpoint inhibitors (ICIs) are a class of immunotherapy agents capable of alleviating the immunosuppressive effects exerted by tumorigenic cells. The programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) immune checkpoint is one of the most ubiquitous checkpoints utilized by tumorigenic cells for immune evasion by inducing apoptosis and inhibiting the proliferation and cytokine production of T lymphocytes. Currently, the most frequently used ICIs targeting the PD-1/PD-L1 checkpoint include monoclonal antibodies (mAbs) pembrolizumab and nivolumab that bind to PD-1 on T lymphocytes and inhibit interaction with PD-L1 on tumorigenic cells. However, pembrolizumab and nivolumab are costly, and thus their accessibility is limited in low- and middle-income countries (LMICs). Therefore, it is essential to develop novel biomanufacturing platforms capable of reducing the cost of these two therapies. Molecular farming is one such platform utilizing plants for mAb production, and it has been demonstrated to be a rapid, low-cost, and scalable platform that can be potentially implemented in LMICs to diminish the exorbitant prices, ultimately leading to a significant reduction in cancer-related mortalities within these countries.
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Affiliation(s)
- Michael C Stark
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
| | - Anna M Joubert
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
| | - Michelle H Visagie
- Department of Physiology, School of Medicine, Faculty of Health Sciences, University of Pretoria, Private Bag X323, Pretoria 0031, South Africa
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40
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Juncker T, Chatton B, Donzeau M. The Prodigious Potential of mRNA Electrotransfer as a Substitute to Conventional DNA-Based Transient Transfection. Cells 2023; 12:1591. [PMID: 37371061 DOI: 10.3390/cells12121591] [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: 05/04/2023] [Revised: 05/31/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Transient transfection of foreign DNA is the most widely used laboratory technique to study gene function and product. However, the transfection efficiency depends on many parameters, including DNA quantity and quality, transfection methods and target cell lines. Here, we describe the considerable advantage of mRNA electroporation compared to conventional DNA-based systems. Indeed, our methodology offers extremely high transfection efficiency up to 98% regardless of the cell line tested. Protein expression takes place a few hours post-transfection and lasts over 72 h, but overall, the electrotransfer of mRNAs enables the monitoring of the level of protein expressed by simply modulating the amount of mRNAs used. As a result, we successfully conducted cell imaging by matching the levels of expressed VHHs and the antigen present in the cell, preventing the necessity to remove the excess unbound VHHs. Altogether, our results demonstrate that mRNA electrotransfer could easily supplant the conventional DNA-based transient expression system.
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Affiliation(s)
- Théo Juncker
- UMR7242 Biotechnologie et Signalisation Cellulaire, Université de Strasbourg, F-67412 Illkirch, France
| | - Bruno Chatton
- UMR7242 Biotechnologie et Signalisation Cellulaire, Université de Strasbourg, F-67412 Illkirch, France
| | - Mariel Donzeau
- UMR7242 Biotechnologie et Signalisation Cellulaire, Université de Strasbourg, F-67412 Illkirch, France
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Nemes B, László S, Zsidó BZ, Hetényi C, Feher A, Papp F, Varga Z, Szőke É, Sándor Z, Pintér E. Elucidation of the binding mode of organic polysulfides on the human TRPA1 receptor. Front Physiol 2023; 14:1180896. [PMID: 37351262 PMCID: PMC10282659 DOI: 10.3389/fphys.2023.1180896] [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: 03/06/2023] [Accepted: 05/22/2023] [Indexed: 06/24/2023] Open
Abstract
Introduction: Previous studies have established that endogenous inorganic polysulfides have significant biological actions activating the Transient Receptor Potential Ankyrin 1 (TRPA1) receptor. Organic polysulfides exert similar effects, but they are much more stable molecules, therefore these compounds are more suitable as drugs. In this study, we aimed to better understand the mechanism of action of organic polysulfides by identification of their binding site on the TRPA1 receptor. Methods: Polysulfides can readily interact with the thiol side chain of the cysteine residues of the protein. To investigate their role in the TRPA1 activation, we replaced several cysteine residues by alanine via site-directed mutagenesis. We searched for TRPA1 mutant variants with decreased or lost activating effect of the polysulfides, but with other functions remaining intact (such as the effects of non-electrophilic agonists and antagonists). The binding properties of the mutant receptors were analyzed by in silico molecular docking. Functional changes were tested by in vitro methods: calcium sensitive fluorescent flow cytometry, whole-cell patch-clamp and radioactive calcium-45 liquid scintillation counting. Results: The cysteines forming the conventional binding site of electrophilic agonists, namely C621, C641 and C665 also bind the organic polysulfides, with the key role of C621. However, only their combined mutation abolished completely the organic polysulfide-induced activation of the receptor. Discussion: Since previous papers provided evidence that organic polysulfides exert analgesic and anti-inflammatory actions in different in vivo animal models, we anticipate that the development of TRPA1-targeted, organic polysulfide-based drugs will be promoted by this identification of the binding site.
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Affiliation(s)
- Balázs Nemes
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Szabolcs László
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
- Department of Inorganic and Analytical Chemistry, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Balázs Zoltán Zsidó
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Csaba Hetényi
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Adam Feher
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ferenc Papp
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Zoltan Varga
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Éva Szőke
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Zoltán Sándor
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
| | - Erika Pintér
- Department of Pharmacology and Pharmacotherapy, Medical School, University of Pécs, Pécs, Hungary
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Krishnan N, Peng FX, Mohapatra A, Fang RH, Zhang L. Genetically engineered cellular nanoparticles for biomedical applications. Biomaterials 2023; 296:122065. [PMID: 36841215 PMCID: PMC10542936 DOI: 10.1016/j.biomaterials.2023.122065] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 02/14/2023] [Accepted: 02/18/2023] [Indexed: 02/22/2023]
Abstract
In recent years, nanoparticles derived from cellular membranes have been increasingly explored for the prevention and treatment of human disease. With their flexible design and ability to interface effectively with the surrounding environment, these biomimetic nanoparticles can outperform their traditional synthetic counterparts. As their popularity has increased, researchers have developed novel ways to modify the nanoparticle surface to introduce new or enhanced capabilities. Moving beyond naturally occurring materials derived from wild-type cells, genetic manipulation has proven to be a robust and flexible method by which nanoformulations with augmented functionalities can be generated. In this review, an overview of genetic engineering approaches to express novel surface proteins is provided, followed by a discussion on the various biomedical applications of genetically modified cellular nanoparticles.
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Affiliation(s)
- Nishta Krishnan
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Fei-Xing Peng
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Animesh Mohapatra
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA
| | - Ronnie H Fang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
| | - Liangfang Zhang
- Department of NanoEngineering, Chemical Engineering Program, and Moores Cancer Center, University of California San Diego, La Jolla, CA 92093, USA.
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Almeida C, Teixeira AL, Dias F, Morais M, Medeiros R. Extracellular Vesicles as Potential Therapeutic Messengers in Cancer Management. BIOLOGY 2023; 12:biology12050665. [PMID: 37237479 DOI: 10.3390/biology12050665] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023]
Abstract
A deeper understanding of the communication mechanisms of tumor cells in a tumor microenvironment can improve the development of new therapeutic solutions, leading to a more personalized approach. Recently, the field of extracellular vesicles (EVs) has drawn attention due to their key role in intercellular communication. EVs are nano-sized lipid bilayer vesicles that are secreted by all types of cells and can function as intermediators of intercellular communication with the ability to transfer different cargo (proteins, nucleic acids, sugar…) types among cells. This role of EVs is essential in a cancer context as it can affect tumor promotion and progression and contribute to the pre-metastatic niche establishment. Therefore, scientists from basic, translational, and clinical research areas are currently researching EVs with great expectations due to their potential to be used as clinical biomarkers, which are useful for disease diagnosis, prognosis, patient follow-up, or even as vehicles for drug delivery due to their natural carrier nature. The application of EVs presents numerous advantages as drug delivery vehicles, namely their capacity to overcome natural barriers, their inherent cell-targeting properties, and their stability in the circulation. In this review, we highlight the distinctive features of EVs, their application as efficient drug delivery systems, and their clinical applications.
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Affiliation(s)
- Cristina Almeida
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- Research Department of the Portuguese League Against Cancer Regional Nucleus of the North (LPCC-NRNorte), Estrada da Circunvalação 6657, 4200-177 Porto, Portugal
| | - Ana Luísa Teixeira
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Francisca Dias
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - Mariana Morais
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- ICBAS School of Medicine and Biomedical Sciences, University of Porto (UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC), Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
- Research Department of the Portuguese League Against Cancer Regional Nucleus of the North (LPCC-NRNorte), Estrada da Circunvalação 6657, 4200-177 Porto, Portugal
- ICBAS School of Medicine and Biomedical Sciences, University of Porto (UP), Rua Jorge Viterbo Ferreira 228, 4050-513 Porto, Portugal
- Fernando Pessoa Research, Innovation and Development Institute (I3ID FFP), Fernando Pessoa University (UFP), Praça 9 de Abril 349, 4249-004 Porto, Portugal
- Faculty of Medicine, University of Porto (FMUP), Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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Rodgers TM, Muzzio N, Valero A, Ahmad I, Lüdtke TU, Moya SE, Romero G. Poly (β-amino Ester) Nanoparticles Modified with a Rabies Virus-derived peptide for the Delivery of ASCL1 Across a 3D In Vitro Model of the Blood Brain Barrier. ACS APPLIED NANO MATERIALS 2023; 6:6299-6311. [PMID: 37274933 PMCID: PMC10234607 DOI: 10.1021/acsanm.3c00651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gene editing has emerged as a therapeutic approach to manipulate the genome for killing cancer cells, protecting healthy tissues, and improving immune response to a tumor. The gene editing tool achaete-scute family bHLH transcription factor 1 CRISPR guide RNA (ASCL1-gRNA) is known to restore neuronal lineage potential, promote terminal differentiation, and attenuate tumorigenicity in glioblastoma tumors. Here, we fabricated a polymeric nonviral carrier to encapsulate ASCL1-gRNA by electrostatic interactions and deliver it into glioblastoma cells across a 3D in vitro model of the blood-brain barrier (BBB). To mimic rabies virus (RV) neurotropism, gene-loaded poly (β-amino ester) nanoparticles are surface functionalized with a peptide derivative of rabies virus glycoprotein (RVG29). The capability of the obtained NPs, hereinafter referred to as RV-like NPs, to travel across the BBB, internalize into glioblastoma cells and deliver ASCL1-gRNA are investigated in a 3D BBB in vitro model through flow cytometry and CLSM microscopy. The formation of nicotinic acetylcholine receptors in the 3D BBB in vitro model is confirmed by immunochemistry. These receptors are known to bind to RVG29. Unlike Lipofectamine that primarily internalizes and transfects endothelial cells, RV-like NPs are capable to travel across the BBB, preferentially internalize glioblastoma cells and deliver ASCL1-gRNA at an efficiency of 10 % causing non-cytotoxic effects.
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Affiliation(s)
- Tina M Rodgers
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Nicolas Muzzio
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Andrea Valero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Ikram Ahmad
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
| | - Tanja Ursula Lüdtke
- Soft Matter Nanotechnology, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, Donostia/San Sebastian, Gipuzkoa, 20014 Spain
| | - Sergio E Moya
- Soft Matter Nanotechnology, CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo Miramon 182, Donostia/San Sebastian, Gipuzkoa, 20014 Spain
| | - Gabriela Romero
- Department of Biomedical Engineering and Chemical Engineering, The University of Texas at San Antonio, San Antonio, Texas, 78249, USA
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Meischel T, Fritzlar S, Villalón-Letelier F, Smith JM, Brooks AG, Reading PC, Londrigan SL. Caveats of Using Overexpression Approaches to Screen Cellular Host IFITM Proteins for Antiviral Activity. Pathogens 2023; 12:pathogens12040519. [PMID: 37111405 PMCID: PMC10145288 DOI: 10.3390/pathogens12040519] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/13/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Ectopic protein overexpression in immortalised cell lines is a commonly used method to screen host factors for their antiviral activity against different viruses. However, the question remains as to what extent such artificial protein overexpression recapitulates endogenous protein function. Previously, we used a doxycycline-inducible overexpression system, in conjunction with approaches to modulate the expression of endogenous protein, to demonstrate the antiviral activity of IFITM1, IFITM2, and IFITM3 against influenza A virus (IAV) but not parainfluenza virus-3 (PIV-3) in A549 cells. We now show that constitutive overexpression of the same IFITM constructs in A549 cells led to a significant restriction of PIV-3 infection by all three IFITM proteins. Variable IFITM mRNA and protein expression levels were detected in A549 cells with constitutive versus inducible overexpression of each IFITM. Our findings show that overexpression approaches can lead to levels of IFITM1, IFITM2, and IFITM3 that significantly exceed those achieved through interferon stimulation of endogenous protein. We propose that exceedingly high levels of overexpressed IFITMs may not accurately reflect the true function of endogenous protein, thus contributing to discrepancies when attributing the antiviral activity of individual IFITM proteins against different viruses. Our findings clearly highlight the caveats associated with overexpression approaches used to screen cellular host proteins for antiviral activity.
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Affiliation(s)
- Tina Meischel
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Svenja Fritzlar
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Fernando Villalón-Letelier
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Jeffrey M. Smith
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Andrew G. Brooks
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Patrick C. Reading
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
| | - Sarah L. Londrigan
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, 792 Elizabeth St., Melbourne, VIC 3000, Australia
- Correspondence: ; Tel.: +61-3-8344-5708
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Eidenberger L, Kogelmann B, Steinkellner H. Plant-based biopharmaceutical engineering. NATURE REVIEWS BIOENGINEERING 2023; 1:426-439. [PMID: 37317690 PMCID: PMC10030082 DOI: 10.1038/s44222-023-00044-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/13/2023] [Indexed: 03/24/2023]
Abstract
Plants can be engineered to recombinantly produce high-quality proteins such as therapeutic proteins and vaccines, also known as molecular farming. Molecular farming can be established in various settings with minimal cold-chain requirements and could thus ensure rapid and global-scale deployment of biopharmaceuticals, promoting equitable access to pharmaceuticals. State of the art plant-based engineering relies on rationally assembled genetic circuits, engineered to enable the high-throughput and rapid expression of multimeric proteins with complex post-translational modifications. In this Review, we discuss the design of expression hosts and vectors, including Nicotiana benthamiana, viral elements and transient expression vectors, for the production of biopharmaceuticals in plants. We examine engineering of post-translational modifications and highlight the plant-based expression of monoclonal antibodies and nanoparticles, such as virus-like particles and protein bodies. Techno-economic analyses suggest a cost advantage of molecular farming compared with mammalian cell-based protein production systems. However, regulatory challenges remain to be addressed to enable the widespread translation of plant-based biopharmaceuticals.
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Affiliation(s)
- Lukas Eidenberger
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Benjamin Kogelmann
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
- acib — Austrian Centre of Industrial Biotechnology, Vienna, Austria
| | - Herta Steinkellner
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Vienna, Austria
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Yao S, Rong W, Yuan Y. Optimization of adeno-associated virus (AAV) gene delivery into human bone marrow stem cells (hBMSCs). Stem Cell Investig 2023; 10:3. [PMID: 36761253 PMCID: PMC9905037 DOI: 10.21037/sci-2022-042] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/04/2023] [Indexed: 02/05/2023]
Abstract
Background Efficiently delivering nucleic acid into mammalian cells is essential to overexpress genes for assessing gene functions. Human bone marrow stem cells (hBMSCs) are the most studied tissue-derived stem cells. Adeno-associated viruses (AAVs) have been used to deliver DNA into hBMSCs for various purposes. Current literature reported that transduction efficiencies of up to 65% could be achieved by AAV gene delivery into hBMSCs. Further improvement of efficiency is needed and possible. This study tested a selection of AAV serotypes for high-efficient DNA delivery into hBMSCs. Methods hBMSCs from different donors were infected with different serotypes of AAVs containing the enhanced green fluorescence protein (eGFP) reporter gene driven by the CMV promoter. Green fluorescence was monitored in the infected cells at five-day intervals. Cells were collected at designated time points after the infection for reverse-transcription polymerase chain reaction (RT-PCR) and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) to assess eGFP mRNA transcription. Results The results indicated that the order of transduction efficiency of the AAV serotypes was AAV2 > AAV2.7m8 > AAV6 > AAV6.2 > AAV1 > AAV-DJ. AAV2 could achieve almost 100% transduction at the multiplicity of infection (MOI) greater than 100K. Over 90% of cells could be transduced at 20K to 50K MOI. About 80% transduction was seen at MOIs of 10K and 15K. RT-PCR analysis showed that eGFP mRNA could be detected from day 5 to day 30 post-AAV infection. The differences in the observed transduction efficiencies of the hBMSCs from different patients indicate donor-to-donor variability, and increased eGFP mRNA was generally seen after day 15 post-AAV2 infection. Maximal eGFP transcription was detected on day 30 post-infection. Conclusions We conclude that AAV2 and AAV2.7m8 at an MOI of 100K or greater can efficiently deliver transgene into hBMSCs with up to near 100% transduction efficiency for sustained expression over one month. However, donor-to-donor variation exists in transduction efficiency and transgene expression, especially at MOIs less than 100K.
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Affiliation(s)
- Shaomian Yao
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Weiqiong Rong
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
| | - Yuanying Yuan
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, USA
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Gándara Z, Rubio N, Castillo RR. Delivery of Therapeutic Biopolymers Employing Silica-Based Nanosystems. Pharmaceutics 2023; 15:pharmaceutics15020351. [PMID: 36839672 PMCID: PMC9963032 DOI: 10.3390/pharmaceutics15020351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The use of nanoparticles is crucial for the development of a new generation of nanodevices for clinical applications. Silica-based nanoparticles can be tailored with a wide range of functional biopolymers with unique physicochemical properties thus providing several advantages: (1) limitation of interparticle interaction, (2) preservation of cargo and particle integrity, (3) reduction of immune response, (4) additional therapeutic effects and (5) cell targeting. Therefore, the engineering of advanced functional coatings is of utmost importance to enhance the biocompatibility of existing biomaterials. Herein we will focus on the most recent advances reported on the delivery and therapeutic use of silica-based nanoparticles containing biopolymers (proteins, nucleotides, and polysaccharides) with proven biological effects.
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Affiliation(s)
- Zoila Gándara
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Instituto de Investigación Química “Andrés M. del Río” (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Correspondence: (Z.G.); (N.R.); (R.R.C.)
| | - Noelia Rubio
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Instituto de Investigación Química “Andrés M. del Río” (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Correspondence: (Z.G.); (N.R.); (R.R.C.)
| | - Rafael R. Castillo
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Instituto de Investigación Química “Andrés M. del Río” (IQAR), Universidad de Alcalá, 28805 Alcalá de Henares, Spain
- Correspondence: (Z.G.); (N.R.); (R.R.C.)
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Quagliarini E, Wang J, Renzi S, Cui L, Digiacomo L, Ferri G, Pesce L, De Lorenzi V, Matteoli G, Amenitsch H, Masuelli L, Bei R, Pozzi D, Amici A, Cardarelli F, Marchini C, Caracciolo G. Mechanistic Insights into the Superior DNA Delivery Efficiency of Multicomponent Lipid Nanoparticles: An In Vitro and In Vivo Study. ACS APPLIED MATERIALS & INTERFACES 2022; 14:56666-56677. [PMID: 36524967 DOI: 10.1021/acsami.2c20019] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Lipid nanoparticles (LNPs) are currently having an increasing impact on nanomedicines as delivery agents, among others, of RNA molecules (e.g., short interfering RNA for the treatment of hereditary diseases or messenger RNA for the development of COVID-19 vaccines). Despite this, the delivery of plasmid DNA (pDNA) by LNPs in preclinical studies is still unsatisfactory, mainly due to the lack of systematic structural and functional studies on DNA-loaded LNPs. To tackle this issue, we developed, characterized, and tested a library of 16 multicomponent DNA-loaded LNPs which were prepared by microfluidics and differed in lipid composition, surface functionalization, and manufacturing factors. 8 out of 16 formulations exhibited proper size and zeta potential and passed to the validation step, that is, the simultaneous quantification of transfection efficiency and cell viability in human embryonic kidney cells (HEK-293). The most efficient formulation (LNP15) was then successfully validated both in vitro, in an immortalized adult keratinocyte cell line (HaCaT) and in an epidermoid cervical cancer cell line (CaSki), and in vivo as a nanocarrier to deliver a cancer vaccine against the benchmark target tyrosine-kinase receptor HER2 in C57BL/6 mice. Finally, by a combination of confocal microscopy, transmission electron microscopy and synchrotron small-angle X-ray scattering, we were able to show that the superior efficiency of LNP15 can be linked to its disordered nanostructure consisting of small-size unoriented layers of pDNA sandwiched between closely apposed lipid membranes that undergo massive destabilization upon interaction with cellular lipids. Our results provide new insights into the structure-activity relationship of pDNA-loaded LNPs and pave the way to the clinical translation of this gene delivery technology.
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Affiliation(s)
- Erica Quagliarini
- NanoDelivery Lab, Department of Molecular Medicine, Sapienza University of Rome, 00161Rome, Italy
| | - Junbiao Wang
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032Camerino, Italy
| | - Serena Renzi
- NanoDelivery Lab, Department of Molecular Medicine, Sapienza University of Rome, 00161Rome, Italy
| | - Lishan Cui
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032Camerino, Italy
| | - Luca Digiacomo
- NanoDelivery Lab, Department of Molecular Medicine, Sapienza University of Rome, 00161Rome, Italy
| | - Gianmarco Ferri
- Laboratorio NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127Pisa, Italy
| | - Luca Pesce
- Laboratorio NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127Pisa, Italy
| | - Valentina De Lorenzi
- Laboratorio NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127Pisa, Italy
| | - Giulia Matteoli
- Laboratorio NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127Pisa, Italy
| | - Heinz Amenitsch
- Institute of Inorganic Chemistry, Graz University of Technology, 8010Graz, Austria
| | - Laura Masuelli
- Department of Experimental Medicine, University of Rome "Sapienza", 00161Rome, Italy
| | - Roberto Bei
- Department of Clinical Sciences and Translational Medicine, University of Rome "Tor Vergata", 00133Rome, Italy
| | - Daniela Pozzi
- NanoDelivery Lab, Department of Molecular Medicine, Sapienza University of Rome, 00161Rome, Italy
| | - Augusto Amici
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032Camerino, Italy
| | - Francesco Cardarelli
- Laboratorio NEST, Scuola Normale Superiore, Piazza San Silvestro 12, 56127Pisa, Italy
| | - Cristina Marchini
- School of Biosciences and Veterinary Medicine, University of Camerino, 62032Camerino, Italy
| | - Giulio Caracciolo
- NanoDelivery Lab, Department of Molecular Medicine, Sapienza University of Rome, 00161Rome, Italy
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Das PK, Panda G, Patra K, Jena N, Dash M. The role of polyplexes in developing a green sustainable approach in agriculture. RSC Adv 2022; 12:34463-34481. [PMID: 36545618 PMCID: PMC9709925 DOI: 10.1039/d2ra06541j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/15/2022] [Indexed: 12/05/2022] Open
Abstract
Rise in global population has increased the food demands and thus the competition among farmers to produce more and more. In the race to obtain higher productivity, farmers have resorted to injudicious farming practices that include the reckless use of nitrogenous fertilizers and intensive cropping on farmlands. Such practices have paved the path for large scale infestations of crops and plants by pests thus affecting the plant productivity and crop vigour. There are several traditional techniques to control pest infestations in plants such as the use of chemical or bio-pesticides, and integrated pest management practices which face several drawbacks. Delivery of gene/nucleic acid in plants through genetic engineering approaches is a more sustainable and effective method of protection against pests. The technology of RNA interference (RNAi) provides a sustainable solution to counter pest control problems faced by other traditional techniques. The RNAi technique involves delivery of dsDNA/dsRNA or other forms of nucleic acids into target organisms thereby bringing about gene silencing. However, RNAi is also limited to its use because of their susceptibility to degradation wherein the use of cationic polymers can provide a tangible solution. Cationic polymers form stable complexes with the nucleic acids known as "polyplexes", which may be attributed to their high positive charge densities thus protecting the exogenous nucleic acids from extracellular degradation. The current paper focuses on the utility of nucleic acids as a sustainable tool for pest control in crops and the use of cationic polymers for the efficient delivery of nucleic acids in pests thus protecting the plant from infestations.
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Affiliation(s)
| | | | | | - Nivedita Jena
- Institute of Life Sciences, DBT-ILSBhubaneswarOdishaIndia
| | - Mamoni Dash
- Institute of Life Sciences, DBT-ILSBhubaneswarOdishaIndia
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