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Liang M, Li Y, Zhang K, Zhu Y, Liang J, Liu M, Zhang S, Chen D, Liang H, Liang L, An S, Zhu X, He Z. Host factor DUSP5 potently inhibits dengue virus infection by modulating cytoskeleton rearrangement. Antiviral Res 2023; 215:105622. [PMID: 37149044 DOI: 10.1016/j.antiviral.2023.105622] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/01/2023] [Accepted: 05/04/2023] [Indexed: 05/08/2023]
Abstract
Cytoskeleton has been reported to play an essential role in facilitating the viral life cycle. However, whether the host can exert its antiviral effects by modulating the cytoskeleton is not fully understood. In this study, we identified that host factor DUSP5 was upregulated after dengue virus (DENV) infection. In addition, we demonstrated that overexpression of DUSP5 remarkably inhibited DENV replication. Conversely, the depletion of DUSP5 led to an increase in viral replication. Moreover, DUSP5 was found to restrain viral entry into host cells by suppressing F-actin rearrangement via negatively regulating the ERK-MLCK-Myosin IIB signaling axis. Depletion of dephosphorylase activity of DUSP5 abolished its above inhibitory effects. Furthermore, we also revealed that DUSP5 exhibited broad-spectrum antiviral effects against DENV and Zika virus. Taken together, our studies identified DUSP5 as a key host defense factor against viral infection and uncovered an intriguing mechanism by which the host exerts its antiviral effects through targeting cytoskeleton rearrangement.
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Affiliation(s)
- Minqi Liang
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yizhe Li
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Kexin Zhang
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yujia Zhu
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Jingyao Liang
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Minjie Liu
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Shuqing Zhang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Delin Chen
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hao Liang
- Cancer Institute, Southern Medical University, Guangzhou, 510515, China
| | - Linyue Liang
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China
| | - Shu An
- Department of Laboratory Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.
| | - Xun Zhu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, 510080, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China; Central Laboratory, The Third People's Hospital of Zhuhai, Zhuhai, 519060, China.
| | - Zhenjian He
- School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China; Key Laboratory of Tropical Disease Control (Sun Yat-sen University), Ministry of Education, Guangzhou, 510080, China.
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Wang WQ, Wu JF, Xiao XQ, Xiao Q, Wang J, Zuo FG. Narrow-band UVB radiation promotes dendrite formation by activating Rac1 in B16 melanoma cells. Mol Clin Oncol 2013; 1:858-862. [PMID: 24649261 PMCID: PMC3916207 DOI: 10.3892/mco.2013.145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 06/27/2013] [Indexed: 11/08/2022] Open
Abstract
Melanocytes are found scattered throughout the basal layer of the epidermis. Following hormone or ultraviolet (UV) light stimulation, the melanin pigments contained in melanocytes are transferred through the dendrites to the surrounding keratinocytes to protect against UV light damage or carcinogenesis. This has been considered as a morphological indicator of melanocytes and melanoma cells. Small GTPases of the Rho family have been implicated in the regulation of actin reorganization underlying dendrite formation in melanocytes and melanoma cells. It has been proven that ultraviolet light plays a pivotal role in melanocyte dendrite formation; however, the molecular mechanism underlying this process has not been fully elucidated. The effect of small GTPases, such as Rac1 and RhoA, on the morphology of B16 melanoma cells treated with narrow-band UVB radiation was investigated. The morphological changes were observed under a phase contrast microscope and the F-actin microfilament of the cytoskeleton was observed under a laser scanning confocal microscope. The pull-down assay was performed to detect the activity of the small GTPases Rac1 and RhoA. The morphological changes were evident, with globular cell bodies and increased numbers of tree branch-like dendrites. The cytoskeletal F-actin appeared disassembled following narrow-band UVB irradiation of B16 melanoma cells. Treatment of B16 melanoma cells with narrow-band UVB radiation resulted in the activation of Rac1 in a time-dependent manner. In conclusion, the present study may provide a novel method through which narrow-band UVB radiation may be used to promote dendrite formation by activating the Rac1 signaling pathway, resulting in F-actin rearrangement in B16 melanoma cells.
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Affiliation(s)
- Wu-Qing Wang
- Department of Dermatology, The Central Hospital of Minhang, Shanghai 201199, P.R. China
| | - Jin-Feng Wu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Xiao-Qing Xiao
- Department of Dermatology, East Hospital, School of Medicine, Tongji University, Shanghai 200120, P.R. China
| | - Qin Xiao
- Department of Dermatology, East Hospital, School of Medicine, Tongji University, Shanghai 200120, P.R. China
| | - Jing Wang
- Department of Dermatology, East Hospital, School of Medicine, Tongji University, Shanghai 200120, P.R. China
| | - Fu-Guo Zuo
- Department of Dermatology, East Hospital, School of Medicine, Tongji University, Shanghai 200120, P.R. China
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