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Bajwa KK, Punetha M, Kumar D, Yadav PS, Long CR, Selokar NL. Electroporation-based CRISPR gene editing in adult buffalo fibroblast cells. Anim Biotechnol 2023; 34:5055-5066. [PMID: 37870061 DOI: 10.1080/10495398.2023.2271030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Electroporation is a widely used method for delivering CRISPR components into cells; however, it presents challenges when applied to difficult-to-transfect cells like adult buffalo fibroblasts. In this study, the ITGB2 gene (encoding the CD18 protein), plays vital for cellular adhesion and immune responses, was selected for editing experiments. To optimize electroporation conditions, we investigated parameters such as electric field strength, pulse duration, plasmid DNA amount, cuvette type, and cell type. The best transfection rates were obtained in a 4 mm gap cuvette with a single 20-millisecond pulse of 300 V using a 10 μg of all-in-one CRISPR plasmid for 106 cells in 100 μL of electroporation buffer. Increasing DNA quantity enhanced transfection rates but compromised cell viability. The 4 mm cuvette gap had high transfection rates than the 2 mm gap, and newborn cells exhibited higher transfection rates than adult cells. We achieved transfection rates of 10-12% with a cell viability of 25-30% for adult fibroblast cells. Subsequently, successfully edited the ITGB2 gene with a 30% editing efficiency, confirmed through various analysis methods, including T7E1 assay, TIDE and ICE analysis, and TA cloning. In conclusion, electroporation conditions reported here can edit buffalo gene(s) for various biotechnological research applications.
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Affiliation(s)
- Kamlesh Kumari Bajwa
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Meeti Punetha
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Dharmendra Kumar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Prem Singh Yadav
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
| | - Chares R Long
- College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Naresh L Selokar
- Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, India
- Animal Biotechnology Centre, ICAR-National Dairy Research Institute, Karnal, Haryana, India
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Ma DJ, Hwang JS, Noh KB, Oh SH, Kim KW, Shin YJ. Role of NADPH Oxidase 4 in Corneal Endothelial Cells Is Mediated by Endoplasmic Reticulum Stress and Autophagy. Antioxidants (Basel) 2023; 12:1228. [PMID: 37371958 DOI: 10.3390/antiox12061228] [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: 04/25/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Human corneal-endothelial cells (hCEnCs) are located on the inner layer of the cornea. Injury to CEnCs leads to permanent corneal edema, requiring corneal transplantation. NADPH oxidase 4 (NOX4) has been reported to be implicated in the pathogenesis of CEnCs diseases. Thus, we investigated the role of NOX4 in CEnCs in this study. In an animal study, siRNA for NOX4 (siNOX4) or plasmid for NOX4 (pNOX4) was introduced into the corneal endothelium of rats by electroporation, using a square-wave electroporator (ECM830, Havard apparatus) to decrease or increase the expression of NOX4, respectively, and the rat corneas were cryoinjured through contact with a metal rod of 3 mm diameter frozen in liquid nitrogen for 10 min. The immunofluorescence staining of NOX4 and 8-OHdG showed that the levels of NOX4 and 8-OHdG were decreased in the siNOX4 group compared to the siControl, and increased in the pNOX4 group compared to the pControl at one week after treatment. Without cryoinjury, corneal opacity was more severe, and the density of CEnCs was lower, in pNOX4-treated rats compared to pControl. After cryoinjury, the corneas were more transparent, and the CEnC density was higher, in siNOX4-treated rats. The hCEnCs were cultured and transfected with siNOX4 and pNOX4. The silencing of NOX4 in hCEnCs resulted in a normal cell shape, higher viability, and higher proliferation rate than those transfected with the siControl, while NOX4 overexpression had the opposite effect. NOX4 overexpression increased the number of senescent cells and intracellular oxidative stress levels. NOX4 overexpression increased ATF4 and ATF6 levels, and nuclear translocation of XBP-1, which is the endoplasmic reticulum (ER) stress marker, while the silencing of NOX4 had the opposite effect. Additionally, the mitochondrial membrane potential was hyperpolarized by the silencing of NOX4, and depolarized by NOX4 overexpression. The LC3II levels, a marker of autophagy, were decreased by the silencing of NOX4, and increased by NOX4 overexpression. In conclusion, NOX4 plays a pivotal role in the wound-healing and senescence of hCEnCs, by modulating oxidative stress, ER stress, and autophagy. The regulation of NOX4 may be a potential therapeutic strategy for regulating the homeostasis of CEnCs, and treating corneal-endothelial diseases.
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Affiliation(s)
- Dae Joong Ma
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
| | - Jin Sun Hwang
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
| | - Kyung Bo Noh
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
| | - Sun-Hee Oh
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
| | - Kyoung Wook Kim
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
| | - Young Joo Shin
- Department of Ophthalmology, Hallym University Medical Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
- Hallym BioEyeTech Research Center, College of Medicine, Hallym University, Seoul 07442, Republic of Korea
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Aggarwal D, Shetty DC, Jain A, Gulati N, Juneja S. Pathogenetic model of survivin-dependent molecular signalling pathways in tumorigenesis of oral cancer and precursor lesions. J Oral Maxillofac Pathol 2023; 27:287-294. [PMID: 37854918 PMCID: PMC10581315 DOI: 10.4103/jomfp.jomfp_5_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 10/20/2023] Open
Abstract
Background p53 tumour suppressor gene limits unchecked cellular growth in response to DNA damage, by causing G1 arrest and the activation of apoptosis. Inhibitors of apoptosis include survivin which acts by inhibition of caspases. Survivin has a significant role as a cell cycle modulator and is only minimally present in mature tissues. Aberrant expression of p53 and survivin has been evaluated in various carcinomas. Thus, the objective of this research was to elucidate the co-expression of p53 and survivin in tissue samples of Oral Potentially Malignant Disorders (OPMDs) and Oral Squamous Cell Carcinoma (OSCCs). Method Thirty tissue samples of OPMDs and 30 tissue samples of OSCCs taken from department archives were used in the study. Expression of p53 and survivin was analyzed in the study groups by the help of immunohistochemistry. Also, co-expression of both the markers was evaluated. Results The expression of p53 and survivin in the oral epithelium of patients with OSCCs was significantly higher than that in patients with OPMDs (P value ≤0.05). Conclusion Our results provide insights into the altered survivin and p53 co-expression with significant immunoexpression within the study groups. Therefore, survivin and p53 could be better markers for identifying cell proliferation and apoptotic pathway. Also, malignant transformation rate of OPMD increases with increased expression of these markers.
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Affiliation(s)
- Dipanshu Aggarwal
- Department of Oral Pathology and Microbiology, I.T.S-Centre for Dental Studies and Research, Muradnagar, Uttar Pradesh, India
| | - Devi Charan Shetty
- Department of Oral Pathology and Microbiology, I.T.S-Centre for Dental Studies and Research, Muradnagar, Uttar Pradesh, India
| | - Anshi Jain
- Department of Oral Pathology and Microbiology, I.T.S-Centre for Dental Studies and Research, Muradnagar, Uttar Pradesh, India
| | - Nikita Gulati
- Department of Oral Pathology and Microbiology, I.T.S-Centre for Dental Studies and Research, Muradnagar, Uttar Pradesh, India
| | - Saurabh Juneja
- Department of Oral Pathology and Microbiology, Shree Bankey Bihari Dental College, Uttar Pradesh, India
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Dat TD, Viet ND, Thanh VH, Nhi HND, Linh NTT, Ngan NTK, Nam HM, Thanh Phong M, Hieu NH. Optimization of Triterpenoid Extracted from Vietnamese Ganoderma lucidum via Supercritical Extraction Method and Biological Tests. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2032750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Tran Do Dat
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Nguyen Duc Viet
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Vuong Hoai Thanh
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Ho Nguyen Dieu Nhi
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Ngo Thi Thuy Linh
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Kim Ngan
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Hoang Minh Nam
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Mai Thanh Phong
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Nguyen Huu Hieu
- Vnu-hcmc Key Laboratory of Chemical Engineering and Petroleum Processing (Key Cepp Lab), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ward 14, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City (VNU-HCm), Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
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Kardani K, Milani A, Bolhassani A. Gene delivery in adherent and suspension cells using the combined physical methods. Cytotechnology 2022; 74:245-257. [PMID: 35464169 PMCID: PMC8975990 DOI: 10.1007/s10616-022-00524-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/25/2022] [Indexed: 11/24/2022] Open
Abstract
Physical methods are widely utilized to deliver nucleic acids into cells such as electro-transfection or heat shock. An efficient gene electro-transfection requires the best conditions including voltage, the pulse length or number, buffer, incubation time and DNA form. In this study, the delivery of pEGFP-N1 vector into two adherent cell lines (HEK-293 T and COS-7) with the same origin (epithelial cells), and also mouse bone marrow-derived dendritic cells (DCs) was evaluated using electroporation under different conditions alone and along with heat treatment. Our data showed that the highest green fluorescent protein (GFP) expression in HEK-293 T and COS-7 cells was observed in serum-free RPMI cell culture medium as electroporation buffer, voltage (200 V), the pulse number (2), the pulse length (15 ms), the circular form of DNA, and 48 h after electro-transfection. In addition, the highest GFP expression in DCs was detected in serum-free RPMI, voltage (300 V), the pulse number (1), the pulse length (5 ms), and 48 h after electro-transfection. The use of sucrose as electroporation buffer, the pulse number (2), and the pulse length (25 ms) led to further cytotoxicity and lower transfection in HEK293T and COS-7 cells than other conditions. Moreover, the high voltage (700 V) increased the cell cytotoxicity, and decreased electro-transfection efficiency in DCs. On the other hand, the best conditions of electroporation along with heat treatment could significantly augment the transfection efficiency in all the cells. These data will be useful for gene delivery in other cells with the same properties using physical methods. Supplementary Information The online version contains supplementary material available at 10.1007/s10616-022-00524-4.
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Affiliation(s)
- Kimia Kardani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Alireza Milani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
| | - Azam Bolhassani
- Department of Hepatitis and AIDS, Pasteur Institute of Iran, Tehran, Iran
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6
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Ghosh R, Xiao Y, Kragelj J, Frederick KK. In-Cell Sensitivity-Enhanced NMR of Intact Viable Mammalian Cells. J Am Chem Soc 2021; 143:18454-18466. [PMID: 34724614 DOI: 10.1021/jacs.1c06680] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
NMR has the resolution and specificity to determine atomic-level protein structures of isotopically labeled proteins in complex environments, and with the sensitivity gains conferred by dynamic nuclear polarization (DNP), NMR has the sensitivity to detect proteins at their endogenous concentrations. However, DNP sensitivity enhancements are critically dependent on experimental conditions and sample composition. While some of these conditions are theoretically compatible with cellular viability, the effects of others on cellular sample integrity are unknown. Uncertainty about the integrity of cellular samples limits the utility of experimental outputs of in-cell experiments. Using several measures, we establish conditions that support DNP enhancements that can enable detection of micromolar concentrations of proteins in experimentally tractable times that are compatible with cellular viability. Taken together, we establish DNP-assisted MAS NMR as a technique for structural investigations of biomolecules in intact viable cells that can be phenotyped both before and after NMR experiments.
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Affiliation(s)
- Rupam Ghosh
- Department of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States
| | - Yiling Xiao
- Department of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States
| | - Jaka Kragelj
- Department of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States
| | - Kendra K Frederick
- Department of Biophysics, UT Southwestern Medical Center, Dallas, Texas 75390-8816, United States.,Center for Alzheimer's and Neurodegenerative Disease, UT Southwestern Medical Center, Dallas, Texas 75390, United States
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Hyder I, Eghbalsaied S, Kues WA. Systematic optimization of square-wave electroporation conditions for bovine primary fibroblasts. BMC Mol Cell Biol 2020; 21:9. [PMID: 32111153 PMCID: PMC7049184 DOI: 10.1186/s12860-020-00254-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/19/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Gene transfer by electroporation is an established method for the non-viral mediated transfection of mammalian cells. Primary cells pose a particular challenge for electroporation-mediated gene transfer, since they are more vulnerable than immortalized cells, and have a limited proliferative capacity. Improving the gene transfer by using square wave electroporation in difficult to transfect cells, like bovine fetal fibroblasts, is a prerequisite for transgenic and further downstream experiments. RESULTS Here, bovine fetal fibroblasts were used for square-wave electroporation experiments in which the following parameters were systematically tested: electroporation buffer, electroporation temperature, pulse voltage, pulse duration, pulse number, cuvette type and plasmid DNA amount. For the experiments a commercially available square-wave generator was applied. Post electroporation, the bovine fetal fibroblasts were observed after 24 h for viability and reporter expression. The best results were obtained with a single 10 millisecond square-wave pulse of 400 V using 10 μg supercoiled plasmid DNA and 0.3 × 106 cells in 100 μl of Opti-MEM medium in 4 mm cuvettes. Importantly, the electroporation at room temperature was considerably better than with pre-cooled conditions. CONCLUSIONS The optimized electroporation conditions will be relevant for gene transfer experiments in bovine fetal fibroblasts to obtain genetically engineered donor cells for somatic cell nuclear transfer and for reprogramming experiments in this species.
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Affiliation(s)
- Iqbal Hyder
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institute, 31535, Neustadt, Germany.,Department of Veterinary Physiology, NTR College of Veterinary Science, Gannavaram, India
| | - Shahin Eghbalsaied
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institute, 31535, Neustadt, Germany.,Transgenesis Center of Excellence, Isfahan (Khorasgan) branch, Islamic Azad University, Isfahan, Iran
| | - Wilfried A Kues
- Institute of Farm Animal Genetics, Friedrich-Loeffler-Institute, 31535, Neustadt, Germany.
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The protective effect of non-invasive low intensity pulsed electric field and fucoidan in preventing oxidative stress-induced motor neuron death via ROCK/Akt pathway. PLoS One 2019; 14:e0214100. [PMID: 30889218 PMCID: PMC6424404 DOI: 10.1371/journal.pone.0214100] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/06/2019] [Indexed: 02/06/2023] Open
Abstract
With the expansion of the aged population, it is predicted that neurodegenerative diseases (NDDs) will become a major threat to public health worldwide. However, existing therapies can control the symptoms of the diseases at best, rather than offering a fundamental cure. As for the complex pathogenesis, clinical and preclinical researches have indicated that oxidative stress, a central role in neuronal degeneration, is a possible therapeutic target in the development of novel remedies. In this study, the motor neuron-like cell line NSC-34 was employed as an experimental model in probing the effects induced by the combination of non-invasive low intensity pulsed electric field (LIPEF) and fucoidan on the H2O2-induced neuron damage. It was found that single treatment of the LIPEF could protect the NSC-34 cells from oxidative stress, and the protective effect was enhanced by combining the LIPEF and fucoidan. Notably, it was observed that single treatment of the LIPEF obviously suppressed the H2O2-enhanced expression of ROCK protein and increased the phosphorylation of Akt in the H2O2-treated NSC-34 cells. Moreover, the LIPEF can be easily modified to concentrate on a specific area. Accordingly, this technique can be used as an advanced remedy for ROCK inhibition without the drawback of drug metabolism. Therefore, we suggest the LIPEF would be a promising strategy as a treatment for motor neurodegeneration and warrant further probe into its potential in treating other neuronal degenerations.
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Stadnicka K, Dębowska M, Dębski J, Bajek A. Secreting oviduct epithelial cells of Coturnix coturnix japonica (QOEC) and changes to their proteome after nonviral transfection. J Cell Biochem 2019; 120:12724-12739. [PMID: 30854717 DOI: 10.1002/jcb.28541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/13/2019] [Accepted: 02/21/2019] [Indexed: 02/04/2023]
Abstract
The quail oviduct (Coturnix c. japonica) is a natural candidate avian bioreactor, while the secretive quail oviduct epithelial cells (QOECs) are potential in vitro producers of recombinant proteins and vaccines. In view of the need for highly performing and transformable cell lines, QOEC may potentially act as an alternative bioreactor platform to the existing ones, for example, to the Chinese hamster ovary. The aim of this work was to characterize QOECs and their response to nucleofection with a nonviral plasmid DNA carrying the human interferon-α 2a gene (hIFNλ2a), in vitro. Primary QOEC cultures from laying quails (10-15 weeks old) were characterized by their proliferation rate, doubling time, and multilineage differentiation. Electroporation to cell nuclei (nucleofection) was used to deliver nonviral plasmid DNA containing a reporter GFP and hIFN under the ovalbumin promoter. The posttransfection analysis included polymerase chain reaction, Western blot analysis, and liquid chromatography coupled to tandem mass spectrometry. QOEC showed a typical epithelial characteristic in a primary 2D monolayer culture system and retained secretive potential up to the first passage. QOEC showed differentiation into osteoblastic lineage after stimulation. The nucleofection mean efficiency was low (2.3%). Differences of up to 10% in the proteomic profiles between nontransfected and transfected QOEC were found, the most important of these were related to the absence of keratins and cell-adhesion proteins in the transfected QOEC. Concluding, with the practical information provided here, QOEC have the potential to serve as an avian secreting cellular platform. QOEC may be further transformed to cell lineage to meet the requirement for a stable, electrocompetent, and transfectable model. The first proteomic comparison of QOEC delivered in this study showed, in the majority, a stable proteome of the nontransfected vs transfected QOEC.
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Affiliation(s)
- Katarzyna Stadnicka
- Department of Animal Biotechnology and Genetics, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Bydgoszcz, Poland
| | - Michalina Dębowska
- Department of Animal Biotechnology and Genetics, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Bydgoszcz, Poland
| | - Janusz Dębski
- Mass Spectrometry Laboratory, Institute of Biochemistry and Biophysics-Polish Academy of Sciences, Warsaw, Poland
| | - Anna Bajek
- Department of Tissue Engineering, Nicolaus Copernicus University, Bydgoszcz, Poland
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10
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Yeon SY, Yun J, Yoon SH, Lee D, Jang W, Han SH, Kang CM, Chung TD. A miniaturized solid salt reverse electrodialysis battery: a durable and fully ionic power source. Chem Sci 2018; 9:8071-8076. [PMID: 30542555 PMCID: PMC6238720 DOI: 10.1039/c8sc02954g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 08/27/2018] [Indexed: 01/07/2023] Open
Abstract
A novel pump-free miniaturized reverse electrodialysis (RED) system was designed to provide lasting power transduced from salinity gradients, named solid salt RED (ssRED), and this quasi-battery uses a solid salt instead of electrolyte solution for streamlined usage. It is portable, flexible, comparable in size to a universal serial bus flash drive, and easily activated with a small amount of water. It maintains a constant ionic concentration gradient through precipitation reactions between a pair of different salts. This precipitation-assisted solid salt RED (PssRED) is an unprecedented ionic power source as it can generate steady electricity in the absence of a driving pump. The PssRED was successfully coupled with bipolar electrode (BPE) microchip sensors which require stable ionic electricity and a polyelectrolyte ionic diode to realize a fully ionic circuit. It is envisioned that the range of application could be expanded to supply electromotive force to various devices through an ionic charge flow.
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Affiliation(s)
- Song Yi Yeon
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Jeongse Yun
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Sun-Heui Yoon
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Dahye Lee
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Woohyuk Jang
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Seok Hee Han
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
| | - Chung Mu Kang
- Advanced Institute of Convergence Technology , Suwon-si , Gyeonggi-do 16229 , Republic of Korea
| | - Taek Dong Chung
- Department of Chemistry , Seoul National University , Seoul , 08826 , Republic of Korea .
- Advanced Institute of Convergence Technology , Suwon-si , Gyeonggi-do 16229 , Republic of Korea
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11
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Sroka J, Zimolag E, Lasota S, Korohoda W, Madeja Z. Electrotaxis: Cell Directional Movement in Electric Fields. Methods Mol Biol 2018; 1749:325-340. [PMID: 29526007 DOI: 10.1007/978-1-4939-7701-7_23] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Electrotaxis plays an important role during embryogenesis, inflammation, wound healing, and tumour metastasis. However, the mechanisms at play during electrotaxis are still poorly understood. Therefore intensive studies on signaling pathways involved in this phenomenon should be carried out. In this chapter, we described an experimental system for studying electrotaxis of Amoeba proteus, mouse embryonic fibroblasts (MEF), Walker carcinosarcoma cells WC256, and bone marrow adherent cells (BMAC).
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Affiliation(s)
- Jolanta Sroka
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Krakow, Poland.
| | - Eliza Zimolag
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Krakow, Poland
| | - Slawomir Lasota
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Krakow, Poland
| | - Wlodzimierz Korohoda
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Krakow, Poland
| | - Zbigniew Madeja
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Krakow, Poland
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Galligan C, Nguyen C, Nelson J, Spooner P, Miller T, Davis BM, Lenigk R, Puleo CM. High-Capacity Redox Polymer Electrodes: Applications in Molecular and Cellular Processing. SLAS Technol 2017; 23:374-386. [PMID: 29186669 DOI: 10.1177/2472630317743947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We present methods to fabricate high-capacity redox electrodes using thick membrane or fiber casting of conjugated polymer solutions. Unlike common solution casting or printing methods used in current organic electronics, the presented techniques enable production of PEDOT:PSS electrodes with high charge capacity and the capability to operate under applied voltages greater than 100 V without electrochemical overoxidation. The electrodes are shown integrated into several electrokinetic components commonly used in automated bioprocess or bioassay workflows, including electrophoretic DNA separation and extraction, cellular electroporation/lysis, and electroosmotic pumping. Unlike current metal electrodes used in these applications, the high-capacity polymer electrodes are shown to function without electrolysis of solvent (i.e., without production of excess H+, OH-, and H2O2 by-products). In addition, each component fabricated using the electrodes is shown to have superior capabilities compared with those fabricated with common metal electrodes. These innovations in electrokinetics include a low-voltage/high-pressure electroosmotic pump, and a "flow battery" (in which electrochemical discharge is used to generate electroosmotic flow in the absence of an applied potential). The novel electrodes (and electrokinetic demonstrations) enable new applications of organic electronics within the biology, health care, and pharmaceutical fields.
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Affiliation(s)
- Craig Galligan
- 1 Electronics Organization, GE Global Research Center, Niskayuna, NY, USA
| | - Christopher Nguyen
- 2 Work performed during a summer internship at GE Global Research Center, Niskayuna, NY, USA
| | - John Nelson
- 3 Diagnostics and Biomedical Technologies, GE Global Research Center, Niskayuna, NY, USA
| | - Patrick Spooner
- 3 Diagnostics and Biomedical Technologies, GE Global Research Center, Niskayuna, NY, USA
| | - Todd Miller
- 1 Electronics Organization, GE Global Research Center, Niskayuna, NY, USA
| | - Brian M Davis
- 3 Diagnostics and Biomedical Technologies, GE Global Research Center, Niskayuna, NY, USA
| | - Ralf Lenigk
- 1 Electronics Organization, GE Global Research Center, Niskayuna, NY, USA
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