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Sağraç D, Kırbaş OK, Öztürkoğlu D, Süt PA, Taşlı PN, Şahin F. Exploring the protective potential of NRF2 overexpressed neural extracellular vesicles against cisplatin-induced neurotoxicity via NRF2/ARE pathway. Toxicology 2024; 508:153934. [PMID: 39182714 DOI: 10.1016/j.tox.2024.153934] [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: 05/08/2024] [Revised: 08/12/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Neurotoxicity is characterized by the accumulation of harmful chemicals such as heavy metals and drugs in neural tissue, resulting in subsequent neuronal death. Among chemicals platinum-based cancer drugs are frequently used due to their antineoplastic effects, but this drug is also known to cause a wide range of toxicities, such as neurotoxicity. The nuclear-factor-erythroid 2-related factor-2 (NRF2) is crucial in combating oxidative stress and maintaining cellular homeostasis. This study thoroughly explores the protective effects of extracellular vesicles derived from NRF2 gene overexpressed neural progenitor cells (NEVs) on cisplatin-induced neurotoxicity. Therefore, extracellular vesicles derived from neural progenitor cells were isolated and characterized. The Cisplatin neurotoxicity dose was 75 µM in mature, post-mitotic neurons. 1.25 µM of tert-butyl hydroquinone that induces NRF2/ARE pathway was used as the positive control. The effects of extracellular vesicles (EVs) were investigated using functional and molecular assays such as PCR and protein-based assays. Here, we observed that NEVs dose-dependently protected post-mitotic neuron cells in response to cisplatin. The study also examined whether the effect was EV-induced by limiting EV biogenesis. The molecular basis of preventive treatment was established. When pre-administered, 1×108 particles/ml of NEVs maintained antioxidant and detoxifying gene and protein expression levels similar to control cell levels. Furthermore, NEVs reduced both cellular and mitochondrial ROS levels and preserved mitochondrial membrane potential. In addition, Catalase and SOD levels were found higher in NEV-treated cells compared to cisplatin control. The findings in NRF2-based protection of cisplatin-induced neurotoxicity may provide further evidence for the relationship between EVs and inhibition of neuronal stress through the NRF2/ARE pathway, increasing the understanding of neuroprotective responses and the development of gene-engineered EV therapy options for peripheral neuropathy or other neurodegenerative diseases. This is the first study in the literature to investigate the neutralizing potency of NRF2 overexpressed neural EVs against cisplatin-induced neurotoxicity.
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Affiliation(s)
- Derya Sağraç
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
| | - Oğuz Kaan Kırbaş
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
| | - Dilek Öztürkoğlu
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
| | - Pınar Akkuş Süt
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
| | - Pakize Neslihan Taşlı
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
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Neprilysin facilitates adipogenesis through potentiation of the phosphatidylinositol 3-kinase (PI3K) signaling pathway. Mol Cell Biochem 2017; 430:1-9. [DOI: 10.1007/s11010-017-2948-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 01/17/2017] [Indexed: 12/28/2022]
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Kim SY, Lee SJ, Han HK, Lim SJ. Aminoclay as a highly effective cationic vehicle for enhancing adenovirus-mediated gene transfer through nanobiohybrid complex formation. Acta Biomater 2017; 49:521-530. [PMID: 27872011 DOI: 10.1016/j.actbio.2016.11.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 11/10/2016] [Accepted: 11/18/2016] [Indexed: 12/17/2022]
Abstract
Electrostatic complexation of adenovirus (Ad) with cationic lipids or polymers has been shown to be an effective means for overcoming the limitations of adenoviral vectors and enhancing gene-transfer efficacy. However, such complexation causes cytotoxicity, limiting the use of this strategy. The present study explored the potential of 3-aminopropyl functionalized magnesium phyllosilicate (aminoclay) as a cationic vehicle for improving Ad-mediated gene transfer without inducing cytotoxicity. Aminoclay complexation produced a dose-dependent increase in Ad-mediated transgene expression in both Ad infection-sensitive and -refractory cells, thereby greatly lowering the Ad dose required for transgene expression. Unlike the case for cationic lipids (Lipofectamine) or polymers (Polybrene), the enhancement effect of aminoclay was not accompanied by significant cytotoxicity regardless of cell lines and it was not observed for nonviral plasmid vectors. Physical characterization studies revealed that nanobiohybrid complexes formed between aminoclay and Ad particles through electrostatic interactions, creating aggregates of Ad particles whose surface was shielded with aminoclay nanosheet oligomers. It appears that aminoclay complexation changes the surface charge of Ad particles from a negative to a highly positive value and thus increases Ad binding to cellular membranes, thereby providing an additional cellular entry mechanism, namely caveolae-dependent endocytosis. Aminoclay-Ad nanobiohybrids may serve as a next-generation efficient, versatile and biocompatible gene-delivery carrier. STATEMENT OF SIGNIFICANCE Electrostatic complexation of adenovirus with cationic materials has been shown to be an effective means for enhancing gene-transfer efficacy in vitro. However, such complexation causes cytotoxicity, limiting the use of this strategy. The present study explored the potential of a synthesized organoclay 3-aminopropyl functionalized magnesium phyllosilicate (aminoclay) as a cationic vehicle for improving Ad-mediated gene transfer. Our data indicate that nanobiohybrid complexes form between aminoclay and Ad particles through electrostatic interactions, thereby greatly enhancing Ad-mediated gene transfer. Unlike the case for either cationic lipids or cationic polymers, the enhancement effect of aminoclay was not accompanied by significant cytotoxicity regardless of cell lines. Our findings in this work highlight that aminoclay-Ad nanobiohybrids may serve as a next-generation efficient and biocompatible gene-delivery carrier.
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Han M, Yu D, Song Q, Wang J, Dong P, He J. Polybrene: Observations on cochlear hair cell necrosis and minimal lentiviral transduction of cochlear hair cells. Neurosci Lett 2015; 600:164-70. [PMID: 26071903 DOI: 10.1016/j.neulet.2015.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 06/02/2015] [Accepted: 06/04/2015] [Indexed: 12/31/2022]
Abstract
Polybrene is widely used to enhance viral transduction; however, little is known about the utility thereof, in enhancing lentiviral transduction of cochlear cells. In the present study, we examined the cytotoxic effects of polybrene, and the further effects thereof, on lentiviral transduction of cochlear cells, especially sensory hair cells. Cochlear basilar membranes of newborn rats were cultured and treated with 0.1-10 μg/mL polybrene for 24h to explore the potential development of ototoxicity. PI staining and TUNEL detection were used to evaluate necrosis or apoptosis of hair cell. Various doses of lentivirus-GFP were added to cochlear organotypic cultures with safe concentrations of polybrene, incubated for 24h, and cultured (in the absence of the virus and polybrene) for a further 48 h. Transduction efficiencies were evaluated. The results showed that polybrene at 0.1 μg/mL was safe to cochlear cells, and 0.5-10 μg/mL concentration induced hair cell necrosis in a dose-dependent manner. However, supporting cells were not damaged. Lentiviral vectors transduced into cochlear cells and 0.1 μg/mL polybrene enhanced transduction efficiency. However, hair cells were hardly transduced with lentiviral vectors either alone or in the presence of 0.1 μg/mL polybrene. The use of polybrene to aid lentiviral transduction of cochlear hair cells requires further attention.
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Affiliation(s)
- Miaomiao Han
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China
| | - Dongzhen Yu
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Qiang Song
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Jiping Wang
- Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China
| | - Pin Dong
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China.
| | - Jingchun He
- Department of Otorhinolaryngology, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China.
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YAP/TAZ enhance mammalian embryonic neural stem cell characteristics in a Tead-dependent manner. Biochem Biophys Res Commun 2015; 458:110-6. [DOI: 10.1016/j.bbrc.2015.01.077] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 01/17/2015] [Indexed: 11/17/2022]
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Lee N, Kim I, Park S, Han D, Ha S, Kwon M, Kim J, Byun SH, Oh W, Jeon HB, Kweon DH, Cho JY, Yoon K. Creatine inhibits adipogenesis by downregulating insulin-induced activation of the phosphatidylinositol 3-kinase signaling pathway. Stem Cells Dev 2014; 24:983-94. [PMID: 25428599 DOI: 10.1089/scd.2014.0130] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Creatine is a nitrogenous organic acid known to function in adenosine triphosphate (ATP) metabolism. Recent evidence indicates that creatine regulates the differentiation of mesenchymal stem cells (MSCs) in processes such as osteogenesis and myogenesis. In this study, we show that creatine also has a negative regulatory effect on fat cell formation. Creatine inhibits the accumulation of cytoplasmic triglycerides in a dose-dependent manner irrespective of the adipogenic cell models used, including a C3H10T1/2 MSC line, 3T3-L1 preadipocytes, and primary human MSCs. Consistently, a dramatic reduction in mRNA expression of adipogenic transcription factors, peroxisome proliferator-activated receptor γ (PPARγ) and CCAAT/enhancer-binding protein α (C/EBPα), glucose transporters, 1 and 4 (Glut1, Glut4), and adipocyte markers, aP2 and adipsin, was observed in the presence of creatine. Creatine appears to exert its inhibitory effects on adipogenesis during early differentiation, but not late differentiation, or proliferation stages through inhibition of the PI3K-Akt-PPARγ signaling pathway. In an in vivo model, administration of creatine into mice resulted in body mass increase without fat accumulation. In summary, our results indicate that creatine downregulates adipogenesis through inhibition of phosphatidylinositol 3-kinase (PI3K) activation and imply the potent therapeutic value of creatine in treating obesity and obesity-related metabolic disorders.
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Affiliation(s)
- Nayeon Lee
- 1 College of Biotechnology and Bioengineering, Sungkyunkwan University , Suwon, Gyeonggi-Do, Republic of Korea
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Jang J, Byun SH, Han D, Lee J, Kim J, Lee N, Kim I, Park S, Ha S, Kwon M, Ahn J, Chung WJ, Kweon DH, Cho JY, Kim S, Yoon K. Notch Intracellular Domain Deficiency in Nuclear Localization Activity Retains the Ability to Enhance Neural Stem Cell Character and Block Neurogenesis in Mammalian Brain Development. Stem Cells Dev 2014; 23:2841-50. [DOI: 10.1089/scd.2014.0031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Jiwon Jang
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Sung-Hyun Byun
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Dasol Han
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Junsub Lee
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Juwan Kim
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Nayeon Lee
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Inhee Kim
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Soojeong Park
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Soobong Ha
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Mookwang Kwon
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Jyhyun Ahn
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Woo-Jae Chung
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Dae-Hyuk Kweon
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Jae Youl Cho
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
| | - Sunyoung Kim
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Keejung Yoon
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Korea
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Kim W, Kim JH, Kong SY, Park MH, Sohn UD, Kim HJ. Comparison of ectopic gene expression methods in rat neural stem cells. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2013; 17:23-30. [PMID: 23439859 PMCID: PMC3579101 DOI: 10.4196/kjpp.2013.17.1.23] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 11/19/2012] [Accepted: 11/29/2012] [Indexed: 12/21/2022]
Abstract
Neural stem cells (NSCs) have the ability to proliferate and differentiate into various types of cells that compose the nervous system. To study functions of genes in stem cell biology, genes or siRNAs need to be transfected. However, it is difficult to transfect ectopic genes into NSCs. Thus to identify the suitable method to achieve high transfection efficiency, we compared lipid transfection, electroporation, nucleofection and retroviral transduction. Among the methods that we tested, we found that nucleofection and retroviral transduction showed significantly increased transfection efficiency. In addition, with retroviral transduction of Ngn2 that is known to induce neurogenesis in various types of cells, we observed facilitated final cell division in rat NSCs. These data suggest that nucleofection and retroviral transduction provide high efficiency of gene delivery system to study functions of genes in rat NSCs.
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Affiliation(s)
- Woosuk Kim
- Laboratory of Stem Cell and Molecular Pharmacology, College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea
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