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Cheng Y, Jiao L, Chen J, Chen P, Zhou F, Zhang J, Wang M, Wu Q, Cao S, Lu H, Wu Z, Wang A, Qian Y, Zhu S. Duck Tembusu virus infection activates the MKK3/6-p38 MAPK signaling pathway to promote virus replication. Vet Microbiol 2024; 288:109951. [PMID: 38101078 DOI: 10.1016/j.vetmic.2023.109951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 12/10/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
Duck Tembusu virus (DTMUV) infection poses a serious threat to ducks, chickens, and geese, causing a range of detrimental effects, including reduced egg production, growth retardation, and even death. These consequences lead to substantial economic losses for the Chinese poultry industry. Although it is established that various viral infections can trigger activation of the p38 mitogen-activated protein kinase (MAPK) signaling pathway, the precise role and mechanisms underlying p38 MAPK activation in DTMUV infection remain poorly understood. To address this knowledge gap, we conducted a study to investigate whether the replication of DTMUV necessitates the activation of p38 MAPK. We found that DTMUV infection stimulates activation of the MKK3/6-p38 MAPK pathway, and the activation of p38 MAPK increases with viral titer. Subsequently, the use of the small molecule inhibitor SB203580 significantly reduced DTMUV replication by inhibiting p38 MAPK activity. Furthermore, downregulation of p38 MAPK protein expression by siRNA also inhibited DTMUV replication, whereas transient transfection of p38 MAPK protein promoted DTMUV replication. Interestingly, we found that the DTMUV capsid protein activates p38 MAPK, and there is interaction between DTMUV capsid and p38 MAPK. Finally, we found that DTMUV infection induces elevated mRNA expression of IFN-α, IFN-β, IFN-γ, IL-1β, IL-6, and IL-12, which is associated with p38 MAPK activity. These results indicated that virus hijacking of p38 activation is a crucial event for DTMUV replication, and that pharmacological blockade of p38 activation represents a potential anti-DTMUV strategy.
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Affiliation(s)
- Yuting Cheng
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Linlin Jiao
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China; MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, China
| | - Jinying Chen
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Peiyao Chen
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Fang Zhou
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Jilin Zhang
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Mixue Wang
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Qingguo Wu
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Shinuo Cao
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Huipeng Lu
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Zhi Wu
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Anping Wang
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Yingjuan Qian
- MOE Joint International Research Laboratory of Animal Health and Food Safety, Nanjing Agricultural University, Nanjing 210095, China.
| | - Shanyuan Zhu
- Engineering Technology Research Center for Modern Animal Science and Novel Veterinary Pharmaceutic Development, Jiangsu Key Laboratory of Veterinary Bio-pharmaceutical High Technology Research, Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China.
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Pandya RS, Mao LLJ, Zhou EW, Bowser R, Zhu Z, Zhu Y, Wang X. Neuroprotection for amyotrophic lateral sclerosis: role of stem cells, growth factors, and gene therapy. Cent Nerv Syst Agents Med Chem 2013; 12:15-27. [PMID: 22283698 DOI: 10.2174/187152412800229152] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 11/30/2011] [Accepted: 12/16/2011] [Indexed: 12/11/2022]
Abstract
Various molecular mechanisms including apoptosis, inflammation, oxidative stress, mitochondrial dysfunction and excitotoxicity have been implicated in the pathogenesis of amyotrophic lateral sclerosis (ALS), though the exact mechanisms have yet to be specified. Furthermore, the underlying restorative molecular mechanisms resulting in neuronal and/or non-neuronal regeneration have to be yet elucidated. Therapeutic agents targeting one or more of these mechanisms to combat either initiation or progression of the disease are under research. Novel treatments including stem cell therapy, growth factors, and gene therapy might prolong survival and delay progression of symptoms. Harnessing the regenerative potential of the central nervous system would be a novel approach for the treatment of motor neuron death resulting from ALS. Endogenous neural replacement, if augmented with administration of exogenous growth factors or with pharmaceuticals that increase the rate of neural progenitor formation, neural migration, and neural maturation could slow the rate of cell loss enough to result in clinical improvement. In this review, we discuss the impact of therapeutic treatment involving stem cell therapy, growth factors, gene therapy, and combination therapy on disease onset and progression of ALS. In addition, we summarize human clinical trials of stem cell therapy, growth factor therapy, and gene therapy in individuals with ALS.
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Affiliation(s)
- Rachna S Pandya
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Department of Neurosurgery, Boston, Massachusetts 02115, USA
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Designing of highly effective complementary and mismatch siRNAs for silencing a gene. PLoS One 2011; 6:e23443. [PMID: 21853133 PMCID: PMC3154470 DOI: 10.1371/journal.pone.0023443] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Accepted: 07/17/2011] [Indexed: 11/19/2022] Open
Abstract
In past, numerous methods have been developed for predicting efficacy of short interfering RNA (siRNA). However these methods have been developed for predicting efficacy of fully complementary siRNA against a gene. Best of author's knowledge no method has been developed for predicting efficacy of mismatch siRNA against a gene. In this study, a systematic attempt has been made to identify highly effective complementary as well as mismatch siRNAs for silencing a gene. Support vector machine (SVM) based models have been developed for predicting efficacy of siRNAs using composition, binary and hybrid pattern siRNAs. We achieved maximum correlation 0.67 between predicted and actual efficacy of siRNAs using hybrid model. All models were trained and tested on a dataset of 2182 siRNAs and performance was evaluated using five-fold cross validation techniques. The performance of our method desiRm is comparable to other well-known methods. In this study, first time attempt has been made to design mutant siRNAs (mismatch siRNAs). In this approach we mutated a given siRNA on all possible sites/positions with all possible nucleotides. Efficacy of each mutated siRNA is predicted using our method desiRm. It is well known from literature that mismatches between siRNA and target affects the silencing efficacy. Thus we have incorporated the rules derived from base mismatches experimental data to find out over all efficacy of mutated or mismatch siRNAs. Finally we developed a webserver, desiRm (http://www.imtech.res.in/raghava/desirm/) for designing highly effective siRNA for silencing a gene. This tool will be helpful to design siRNA to degrade disease isoform of heterozygous single nucleotide polymorphism gene without depleting the wild type protein.
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