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Kasprzycka W, Trębińska-Stryjewska A, Lewandowski RB, Stępińska M, Osuchowska PN, Dobrzyńska M, Achour Y, Osuchowski ŁP, Starzyński J, Mierczyk Z, Trafny EA. Nanosecond Pulsed Electric Field Only Transiently Affects the Cellular and Molecular Processes of Leydig Cells. Int J Mol Sci 2021; 22:ijms222011236. [PMID: 34681896 PMCID: PMC8541366 DOI: 10.3390/ijms222011236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to verify whether the nanosecond pulsed electric field, not eliciting thermal effects, permanently changes the molecular processes and gene expression of Leydig TM3 cells. The cells were exposed to a moderate electric field (80 quasi-rectangular shape pulses, 60 ns pulse width, and an electric field of 14 kV/cm). The putative disturbances were recorded over 24 h. After exposure to the nanosecond pulsed electric field, a 19% increase in cell diameter, a loss of microvilli, and a 70% reduction in cell adhesion were observed. Some cells showed the nonapoptotic externalization of phosphatidylserine through the pores in the plasma membrane. The cell proportion in the subG1 phase increased by 8% at the expense of the S and G2/M phases, and the DNA was fragmented in a small proportion of the cells. The membrane mitochondrial potential and superoxide content decreased by 37% and 23%, respectively. Microarray’s transcriptome analysis demonstrated a negative transient effect on the expression of genes involved in oxidative phosphorylation, DNA repair, cell proliferation, and the overexpression of plasma membrane proteins. We conclude that nanosecond pulsed electric field affected the physiology and gene expression of TM3 cells transiently, with a noticeable heterogeneity of cellular responses.
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Affiliation(s)
- Wiktoria Kasprzycka
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Alicja Trębińska-Stryjewska
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Rafał Bogdan Lewandowski
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Małgorzata Stępińska
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Paulina Natalia Osuchowska
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Monika Dobrzyńska
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Yahia Achour
- Faculty of Electronics, Military University of Technology, 00-908 Warsaw, Poland; (Y.A.); (J.S.)
| | - Łukasz Paweł Osuchowski
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Jacek Starzyński
- Faculty of Electronics, Military University of Technology, 00-908 Warsaw, Poland; (Y.A.); (J.S.)
| | - Zygmunt Mierczyk
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
| | - Elżbieta Anna Trafny
- Biomedical Engineering Centre, Institute of Optoelectronics, Military University of Technology, 00-908 Warsaw, Poland; (W.K.); (A.T.-S.); (R.B.L.); (M.S.); (P.N.O.); (M.D.); (Ł.P.O.); (Z.M.)
- Correspondence:
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2
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Sturm L, Schwemberger B, Menzel U, Häckel S, Albers CE, Plank C, Rip J, Alini M, Traweger A, Grad S, Basoli V. In Vitro Evaluation of a Nanoparticle-Based mRNA Delivery System for Cells in the Joint. Biomedicines 2021; 9:biomedicines9070794. [PMID: 34356857 PMCID: PMC8301349 DOI: 10.3390/biomedicines9070794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/30/2021] [Accepted: 07/05/2021] [Indexed: 12/12/2022] Open
Abstract
Biodegradable and bioresponsive polymer-based nanoparticles (NPs) can be used for oligonucleotide delivery, making them a promising candidate for mRNA-based therapeutics. In this study, we evaluated and optimized the efficiency of a cationic, hyperbranched poly(amidoamine)s-based nanoparticle system to deliver tdTomato mRNA to primary human bone marrow stromal cells (hBMSC), human synovial derived stem cells (hSDSC), bovine chondrocytes (bCH), and rat tendon derived stem/progenitor cells (rTDSPC). Transfection efficiencies varied among the cell types tested (bCH 28.4% ± 22.87, rTDSPC 18.13% ± 12.07, hBMSC 18.23% ± 14.80, hSDSC 26.63% ± 8.81) and while an increase of NPs with a constant amount of mRNA generally improved the transfection efficiency, an increase of the mRNA loading ratio (2:50, 4:50, or 6:50 w/w mRNA:NPs) had no impact. However, metabolic activity of bCHs and rTDSPCs was significantly reduced when using higher amounts of NPs, indicating a dose-dependent cytotoxic response. Finally, we demonstrate the feasibility of transfecting extracellular matrix-rich 3D cell culture constructs using the nanoparticle system, making it a promising transfection strategy for musculoskeletal tissues that exhibit a complex, dense extracellular matrix.
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Affiliation(s)
- Lisa Sturm
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (L.S.); (B.S.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Bettina Schwemberger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (L.S.); (B.S.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Ursula Menzel
- AO Research Institute Davos, 7270 Davos Platz, Switzerland; (U.M.); (M.A.); (V.B.)
| | - Sonja Häckel
- Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (S.H.); (C.E.A.)
| | - Christoph E. Albers
- Department of Orthopaedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland; (S.H.); (C.E.A.)
| | | | - Jaap Rip
- 20Med Therapeutics B.V., Galileiweg 8, 2333BD Leiden, The Netherlands;
| | - Mauro Alini
- AO Research Institute Davos, 7270 Davos Platz, Switzerland; (U.M.); (M.A.); (V.B.)
| | - Andreas Traweger
- Institute of Tendon and Bone Regeneration, Spinal Cord Injury & Tissue Regeneration Center Salzburg, Paracelsus Medical University, 5020 Salzburg, Austria; (L.S.); (B.S.)
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Correspondence: (A.T.); or (S.G.)
| | - Sibylle Grad
- AO Research Institute Davos, 7270 Davos Platz, Switzerland; (U.M.); (M.A.); (V.B.)
- Department of Health Sciences and Technology, ETH Zurich, 8092 Zurich, Switzerland
- Correspondence: (A.T.); or (S.G.)
| | - Valentina Basoli
- AO Research Institute Davos, 7270 Davos Platz, Switzerland; (U.M.); (M.A.); (V.B.)
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3
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Martín-Sánchez C, Alés E, Balseiro-Gómez S, Atienza G, Arnalich F, Bordas A, Cedillo JL, Extremera M, Chávez-Reyes A, Montiel C. The human-specific duplicated α7 gene inhibits the ancestral α7, negatively regulating nicotinic acetylcholine receptor-mediated transmitter release. J Biol Chem 2021; 296:100341. [PMID: 33515545 PMCID: PMC7949125 DOI: 10.1016/j.jbc.2021.100341] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/13/2021] [Accepted: 01/21/2021] [Indexed: 12/31/2022] Open
Abstract
Gene duplication generates new functions and traits, enabling evolution. Human-specific duplicated genes in particular are primary sources of innovation during our evolution although they have very few known functions. Here we examine the brain function of one of these genes (CHRFAM7A) and its product (dupα7 subunit). This gene results from a partial duplication of the ancestral CHRNA7 gene encoding the α7 subunit that forms the homopentameric α7 nicotinic acetylcholine receptor (α7-nAChR). The functions of α7-nAChR in the brain are well defined, including the modulation of synaptic transmission and plasticity underlying normal attention, cognition, learning, and memory processes. However, the role of the dupα7 subunit remains unexplored at the neuronal level. Here, we characterize that role by combining immunoblotting, quantitative RT-PCR and FRET techniques with functional assays of α7-nAChR activity using human neuroblastoma SH-SY5Y cell variants with different dupα7 expression levels. Our findings reveal a physical interaction between dupα7 and α7 subunits in fluorescent protein-tagged dupα7/α7 transfected cells that negatively affects normal α7-nAChR activity. Specifically, in both single cells and cell populations, the [Ca2+]i signal and the exocytotic response induced by selective stimulation of α7-nAChR were either significantly inhibited by stable dupα7 overexpression or augmented after silencing dupα7 gene expression with specific siRNAs. These findings identify a new role for the dupα7 subunit as a negative regulator of α7-nAChR-mediated control of exocytotic neurotransmitter release. If this effect is excessive, it would result in an impaired synaptic transmission that could underlie the neurocognitive and neuropsychiatric disorders associated with α7-nAChR dysfunction.
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Affiliation(s)
- Carolina Martín-Sánchez
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain
| | - Eva Alés
- Department of Medical Physiology and Biophysics, Medical School, Universidad de Sevilla, Sevilla, Spain
| | - Santiago Balseiro-Gómez
- Department of Medical Physiology and Biophysics, Medical School, Universidad de Sevilla, Sevilla, Spain
| | - Gema Atienza
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain
| | - Francisco Arnalich
- Internal Medicine Service, University Hospital La Paz-IdiPAZ, Madrid, Spain
| | - Anna Bordas
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain
| | - José L Cedillo
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain
| | - María Extremera
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Carmen Montiel
- Department of Pharmacology and Therapeutics, Medical School, Universidad Autónoma de Madrid, Madrid, Spain.
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Garcia A, Dunoyer-Geindre S, Fish RJ, Neerman-Arbez M, Reny JL, Fontana P. Methods to Investigate miRNA Function: Focus on Platelet Reactivity. Thromb Haemost 2020; 121:409-421. [PMID: 33124028 PMCID: PMC8263142 DOI: 10.1055/s-0040-1718730] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs modulating protein production. They are key players in regulation of cell function and are considered as biomarkers in several diseases. The identification of the proteins they regulate, and their impact on cell physiology, may delineate their role as diagnostic or prognostic markers and identify new therapeutic strategies. During the last 3 decades, development of a large panel of techniques has given rise to multiple models dedicated to the study of miRNAs. Since plasma samples are easily accessible, circulating miRNAs can be studied in clinical trials. To quantify miRNAs in numerous plasma samples, the choice of extraction and purification techniques, as well as normalization procedures, are important for comparisons of miRNA levels in populations and over time. Recent advances in bioinformatics provide tools to identify putative miRNAs targets that can then be validated with dedicated assays. In vitro and in vivo approaches aim to functionally validate candidate miRNAs from correlations and to understand their impact on cellular processes. This review describes the advantages and pitfalls of the available techniques for translational research to study miRNAs with a focus on their role in regulating platelet reactivity.
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Affiliation(s)
- Alix Garcia
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | | | - Richard J Fish
- Department of Genetic Medicine and Development, University of Geneva, Geneva, Switzerland
| | - Marguerite Neerman-Arbez
- Department of Genetic Medicine and Development, University of Geneva, Geneva, Switzerland.,iGE3, Institute of Genetics and Genomics in Geneva, Geneva, Switzerland
| | - Jean-Luc Reny
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of General Internal Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Pierre Fontana
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Division of Angiology and Haemostasis, Geneva University Hospitals, Geneva, Switzerland
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Optimized Approaches for the Induction of Putative Canine Induced Pluripotent Stem Cells from Old Fibroblasts Using Synthetic RNAs. Animals (Basel) 2020; 10:ani10101848. [PMID: 33050577 PMCID: PMC7601034 DOI: 10.3390/ani10101848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/02/2020] [Accepted: 10/07/2020] [Indexed: 12/16/2022] Open
Abstract
Simple Summary A non-integrating and self-replicating Venezuelan equine encephalitis RNA replicon system can potentially make a great contribution to the generation of clinically applicable canine induced pluripotent stem cells. Our study shows a new method to utilize the synthetic RNA-based approach for canine somatic cell reprogramming regarding transfection and reprogramming efficiency. Abstract Canine induced pluripotent stem cells (ciPSCs) can provide great potential for regenerative veterinary medicine. Several reports have described the generation of canine somatic cell-derived iPSCs; however, none have described the canine somatic cell reprogramming using a non-integrating and self-replicating RNA transfection method. The purpose of this study was to investigate the optimal strategy using this approach and characterize the transition stage of ciPSCs. In this study, fibroblasts obtained from a 13-year-old dog were reprogrammed using a non-integrating Venezuelan equine encephalitis (VEE) RNA virus replicon, which has four reprogramming factors (collectively referred to as T7-VEE-OKS-iG and comprised of hOct4, hKlf4, hSox2, and hGlis1) and co-transfected with the T7-VEE-OKS-iG RNA and B18R mRNA for 4 h. One day after the final transfection, the cells were selected with puromycin (0.5 µg/mL) until day 10. After about 25 days, putative ciPSC colonies were identified showing TRA-1-60 expression and alkaline phosphatase activity. To determine the optimal culture conditions, the basic fibroblast growth factor in the culture medium was replaced with a modified medium supplemented with murine leukemia inhibitory factor (mLIF) and two kinase inhibitors (2i), PD0325901(MEK1/2 inhibitor) and CHIR99021 (GSK3β inhibitor). The derived colonies showed resemblance to naïve iPSCs in their morphology (dome-shaped) and are dependent on mLIF and 2i condition to maintain an undifferentiated phenotype. The expression of endogenous pluripotency markers such as Oct4, Nanog, and Rex1 transcripts were confirmed, suggesting that induced ciPSCs were in the late intermediate stage of reprogramming. In conclusion, the non-integrating and self-replicating VEE RNA replicon system can potentially make a great contribution to the generation of clinically applicable ciPSCs, and the findings of this study suggest a new method to utilize the VEE RNA approach for canine somatic cell reprogramming.
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Orefice NS. Development of New Strategies Using Extracellular Vesicles Loaded with Exogenous Nucleic Acid. Pharmaceutics 2020; 12:E705. [PMID: 32722622 PMCID: PMC7464422 DOI: 10.3390/pharmaceutics12080705] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/19/2020] [Accepted: 07/24/2020] [Indexed: 12/13/2022] Open
Abstract
Gene therapy is a therapeutic strategy of delivering foreign genetic material (encoding for an important protein) into a patient's target cell to replace a defective gene. Nucleic acids are embedded within the adeno-associated virus (AAVs) vectors; however, preexisting immunity to AAVs remains a significant concern that impairs their clinical application. Extracellular vesicles (EVs) hold great potential for therapeutic applications as vectors of nucleic acids due to their endogenous intercellular communication functions through their cargo delivery, including lipids and proteins. So far, small RNAs (siRNA and micro (mi)RNA) have been mainly loaded into EVs to treat several diseases, but the potential use of EVs to load and deliver exogenous plasmid DNA has not been thoroughly described. This review provides a comprehensive overview of the principal methodologies currently employed to load foreign genetic material into EVs, highlighting the need to find the most effective strategies for their successful clinical translations.
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Affiliation(s)
- Nicola Salvatore Orefice
- Department of Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA; or ; Tel.: +1-608-262-21-89
- Waisman Center, University of Wisconsin-Madison, Madison, WI 53705, USA
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7
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Belling JN, Heidenreich LK, Tian Z, Mendoza AM, Chiou TT, Gong Y, Chen NY, Young TD, Wattanatorn N, Park JH, Scarabelli L, Chiang N, Takahashi J, Young SG, Stieg AZ, De Oliveira S, Huang TJ, Weiss PS, Jonas SJ. Acoustofluidic sonoporation for gene delivery to human hematopoietic stem and progenitor cells. Proc Natl Acad Sci U S A 2020; 117:10976-10982. [PMID: 32358194 PMCID: PMC7245081 DOI: 10.1073/pnas.1917125117] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Advances in gene editing are leading to new medical interventions where patients' own cells are used for stem cell therapies and immunotherapies. One of the key limitations to translating these treatments to the clinic is the need for scalable technologies for engineering cells efficiently and safely. Toward this goal, microfluidic strategies to induce membrane pores and permeability have emerged as promising techniques to deliver biomolecular cargo into cells. As these technologies continue to mature, there is a need to achieve efficient, safe, nontoxic, fast, and economical processing of clinically relevant cell types. We demonstrate an acoustofluidic sonoporation method to deliver plasmids to immortalized and primary human cell types, based on pore formation and permeabilization of cell membranes with acoustic waves. This acoustofluidic-mediated approach achieves fast and efficient intracellular delivery of an enhanced green fluorescent protein-expressing plasmid to cells at a scalable throughput of 200,000 cells/min in a single channel. Analyses of intracellular delivery and nuclear membrane rupture revealed mechanisms underlying acoustofluidic delivery and successful gene expression. Our studies show that acoustofluidic technologies are promising platforms for gene delivery and a useful tool for investigating membrane repair.
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Affiliation(s)
- Jason N Belling
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Liv K Heidenreich
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Zhenhua Tian
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27707
- Department of Aerospace Engineering, Mississippi State University, Starkville, MS 39762
| | - Alexandra M Mendoza
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Tzu-Ting Chiou
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- Children's Discovery and Innovation Institute, University of California, Los Angeles, CA 90095
| | - Yao Gong
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Natalie Y Chen
- Department of Medicine and the Molecular Biology Institute, University of California, Los Angeles, CA 90095
- Department of Human Genetics and the Molecular Biology Institute, University of California, Los Angeles, CA 90095
| | - Thomas D Young
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Natcha Wattanatorn
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Jae Hyeon Park
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Leonardo Scarabelli
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Naihao Chiang
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Jack Takahashi
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
| | - Stephen G Young
- Department of Medicine and the Molecular Biology Institute, University of California, Los Angeles, CA 90095
| | - Adam Z Stieg
- California NanoSystems Institute, University of California, Los Angeles, CA 90095
| | - Satiro De Oliveira
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- Children's Discovery and Innovation Institute, University of California, Los Angeles, CA 90095
| | - Tony Jun Huang
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27707
| | - Paul S Weiss
- California NanoSystems Institute, University of California, Los Angeles, CA 90095;
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA 90095
- Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095
| | - Steven J Jonas
- California NanoSystems Institute, University of California, Los Angeles, CA 90095;
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, CA 90095
- Children's Discovery and Innovation Institute, University of California, Los Angeles, CA 90095
- Eli & Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA 90095
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8
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von der Haar K, Jonczyk R, Lavrentieva A, Weyand B, Vogt P, Jochums A, Stahl F, Scheper T, Blume CA. Electroporation: A Sustainable and Cell Biology Preserving Cell Labeling Method for Adipogenous Mesenchymal Stem Cells. Biores Open Access 2019; 8:32-44. [PMID: 30944770 PMCID: PMC6445215 DOI: 10.1089/biores.2019.0001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Human mesenchymal stem cells derived from adipose tissue (AD-hMSCs) represent a promising source for tissue engineering and are already widely used in cell therapeutic clinical trials. Until today, an efficient and sustainable cell labeling system for cell tracking does not exist. We evaluated transient transfection through electroporation for cell labeling and compared it with lentiviral transduction for AD-hMSCs. In addition, we tested whether nonsense DNA or a reporter gene such as enhanced green fluorescent protein (EGFP) is the more suitable label for AD-hMSCs. Using electroporation, the transfection efficiency reached a maximal level of 44.6 ± 1.1% EGFP-positive cells after selective and expansive cultivation of the mixed MSC population, and was 44.5 ± 1.4% after gene transfer with Cyanin3-marked nonsense-label DNA, which remained stable during 2 weeks of nonselective cultivation (37.2 ± 4.7% positive AD-hMSCs). Electroporation with both nonsense DNA and pEGFP-N1 led to a slight growth retardation of 45.2% and 59.1%, respectively. EGFP-transfected or transduced AD-hMSCs showed a limited adipogenic and osteogenic differentiation capacity, whereas it was almost unaffected in cells electroporated with the nonsense-label DNA. The nonsense DNA was detectable through quantitative real-time polymerase chain reaction for at least 5 weeks/10 passages and in differentiated AD-hMSCs. EGFP-labeled cells were trackable for 24 h in vitro and served as testing cells with new materials for dental implants for 7 days. In contrast, lentivirally transduced AD-hMSCs showed an altered natural immune phenotype of the AD-hMSCs with lowered expression of two cell type defining surface markers (CD44 and CD73) and a relevantly decreased cell growth by 71.8% as assessed by the number of colony-forming units. We suggest electroporation with nonsense DNA as an efficient and long-lasting labeling method for AD-hMSCs with the comparably lowest negative impact on the phenotype or the differentiation capacity of the cells, which may, therefore, be suitable for tissue engineering. In contrast, EGFP transfection by electroporation is efficient but may be more suitable for cell tracking within cell therapies without MSC differentiation procedures. Since current protocols of lentiviral gene transduction include the risk of cell biological alterations, electroporation seems advantageous and sustainable enough for hMSC labeling.
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Affiliation(s)
- Kathrin von der Haar
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Rebecca Jonczyk
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Birgit Weyand
- Department of Plastic Hand and Reconstructive Surgery, Hannover Medical School Hannover, Hannover, Germany
| | - Peter Vogt
- Department of Plastic Hand and Reconstructive Surgery, Hannover Medical School Hannover, Hannover, Germany
| | - André Jochums
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Frank Stahl
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Thomas Scheper
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Cornelia A. Blume
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
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9
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Gupta N, Susa K, Yoda Y, Bonventre JV, Valerius MT, Morizane R. CRISPR/Cas9-based Targeted Genome Editing for the Development of Monogenic Diseases Models with Human Pluripotent Stem Cells. CURRENT PROTOCOLS IN STEM CELL BIOLOGY 2018; 45:e50. [PMID: 30040245 PMCID: PMC6060633 DOI: 10.1002/cpsc.50] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Human pluripotent stem cells (hPSCs) represent a formidable tool for disease modeling, drug discovery, and regenerative medicine using human cells and tissues in vitro. Evolving techniques of targeted genome editing, specifically the CRISPR/Cas9 system, allow for the generation of cell lines bearing gene-specific knock-outs, knock-in reporters, and precise mutations. However, there are increasing concerns related to the transfection efficiency, cell viability, and maintenance of pluripotency provided by genome-editing techniques. The procedure presented here employs transient antibiotic selection that overcomes reduced transfection efficiency, avoids cytotoxic flow sorting for increased viability, and generates multiple genome-edited pluripotent hPSC lines expanded from a single parent cell. Avoidance of xenogeneic contamination from feeder cells and reduced operator workload, owing to single-cell passaging rather than clump passaging, are additional benefits. The outlined methods may enable researchers with limited means and technical experience to create human stem cell lines containing desired gene-specific mutations. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Navin Gupta
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Koichiro Susa
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
| | - Yoko Yoda
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Joseph V Bonventre
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - M Todd Valerius
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Harvard Stem Cell Institute, Cambridge, Massachusetts
| | - Ryuji Morizane
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts
- Harvard Medical School, Boston, Massachusetts
- Harvard Stem Cell Institute, Cambridge, Massachusetts
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10
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Bednarczyk M, Kozłowska I, Łakota P, Szczerba A, Stadnicka K, Kuwana T. Generation of transgenic chickens by the non-viral, cell-based method: effectiveness of some elements of this strategy. J Appl Genet 2018; 59:81-89. [PMID: 29372515 PMCID: PMC5799318 DOI: 10.1007/s13353-018-0429-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 01/05/2018] [Accepted: 01/10/2018] [Indexed: 12/20/2022]
Abstract
Transgenic chickens have, in general, been produced by two different procedures. The first procedure is based on viral transfection systems. The second procedure, the non-viral method, is based on genetically modified embryonic cells transferred directly into the recipient embryo. In this review, we analyzed the effectiveness of important elements of the non-viral, cell-based strategy of transgenic chicken production. The main elements of this strategy are: isolation and cultivation of donor embryonic cells; transgene construction; cell transfection in vitro; and chimera production: injection of cells into recipient embryos, raising and identification of germline chimeras, mating germline chimeras, transgene inheritance, and transgene expression. In this overview, recent progress and important limitations in the development of transgenic chickens are presented.
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Affiliation(s)
- Marek Bednarczyk
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland.
| | - Izabela Kozłowska
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
| | - Paweł Łakota
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
| | - Agata Szczerba
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
| | - Katarzyna Stadnicka
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
| | - Takashi Kuwana
- Department of Animal Biochemistry and Biotechnology, University of Science and Technology, Bydgoszcz, Poland
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11
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Highly efficient cellular cloning using Ferro-core Micropallet Arrays. Sci Rep 2017; 7:13081. [PMID: 29026113 PMCID: PMC5638909 DOI: 10.1038/s41598-017-13242-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 09/20/2017] [Indexed: 12/28/2022] Open
Abstract
Advancing knowledge of biological mechanisms has come to depend upon genetic manipulation of cells and organisms, relying upon cellular cloning methods that remain unchanged for decades, are labor and time intensive, often taking many months to come to fruition. Thus, there is a pressing need for more efficient processes. We have adapted a newly developed micropallet array platform, termed the “ferro-core micropallet array”, to dramatically improve and accelerate the process of isolating clonal populations of adherent cells from heterogeneous mixtures retaining the flexibility of employing a wide range of cytometric parameters for identifying colonies and cells of interest. Using transfected (retroviral oncogene or fluorescent reporter construct) rat 208 F cells, we demonstrated the capacity to isolate and expand pure populations of genetically manipulated cells via laser release and magnetic recovery of single micropallets carrying adherent microcolonies derived from single cells. This platform can be broadly applied to biological research, across the spectrum of molecular biology to cellular biology, involving fields such as cancer, developmental, and stem cell biology. The ferro-core micropallet array platform provides significant advantages over alternative sorting and cloning methods by eliminating the necessity for repetitive purification steps and increasing throughput by dramatically shortening the time to obtain clonally expanded cell colonies.
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