1
|
Mghezzi-Habellah M, Prochasson L, Jalinot P, Mocquet V. Viral Subversion of the Chromosome Region Maintenance 1 Export Pathway and Its Consequences for the Cell Host. Viruses 2023; 15:2218. [PMID: 38005895 PMCID: PMC10674744 DOI: 10.3390/v15112218] [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: 09/18/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 11/26/2023] Open
Abstract
In eukaryotic cells, the spatial distribution between cytoplasm and nucleus is essential for cell homeostasis. This dynamic distribution is selectively regulated by the nuclear pore complex (NPC), which allows the passive or energy-dependent transport of proteins between these two compartments. Viruses possess many strategies to hijack nucleocytoplasmic shuttling for the benefit of their viral replication. Here, we review how viruses interfere with the karyopherin CRM1 that controls the nuclear export of protein cargoes. We analyze the fact that the viral hijacking of CRM1 provokes are-localization of numerous cellular factors in a suitable place for specific steps of viral replication. While CRM1 emerges as a critical partner for viruses, it also takes part in antiviral and inflammatory response regulation. This review also addresses how CRM1 hijacking affects it and the benefits of CRM1 inhibitors as antiviral treatments.
Collapse
Affiliation(s)
| | | | | | - Vincent Mocquet
- Laboratoire de Biologie et Modélisation de la Cellule, Ecole Normale Supérieure-Lyon, Université Claude Bernard Lyon, U1293, UMR5239, 69364 Lyon, France; (M.M.-H.); (L.P.); (P.J.)
| |
Collapse
|
2
|
Sajidah ES, Lim K, Wong RW. How SARS-CoV-2 and Other Viruses Build an Invasion Route to Hijack the Host Nucleocytoplasmic Trafficking System. Cells 2021; 10:1424. [PMID: 34200500 PMCID: PMC8230057 DOI: 10.3390/cells10061424] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/31/2021] [Accepted: 06/03/2021] [Indexed: 12/14/2022] Open
Abstract
The host nucleocytoplasmic trafficking system is often hijacked by viruses to accomplish their replication and to suppress the host immune response. Viruses encode many factors that interact with the host nuclear transport receptors (NTRs) and the nucleoporins of the nuclear pore complex (NPC) to access the host nucleus. In this review, we discuss the viral factors and the host factors involved in the nuclear import and export of viral components. As nucleocytoplasmic shuttling is vital for the replication of many viruses, we also review several drugs that target the host nuclear transport machinery and discuss their feasibility for use in antiviral treatment.
Collapse
Affiliation(s)
- Elma Sakinatus Sajidah
- Division of Nano Life Science in the Graduate School of Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan;
| | - Keesiang Lim
- WPI-Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - Richard W. Wong
- Division of Nano Life Science in the Graduate School of Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan;
- WPI-Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
- Cell-Bionomics Research Unit, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan
| |
Collapse
|
3
|
Zheng H, Zou Z, Wu X, Xu Y, Zhu J, Zhou Q, Han R, Song Y, Cheng H. HPV11E7 inhibits IMQ-induced chemokine and colony-stimulating factor production in keratinocytes. Gene 2020; 760:145003. [PMID: 32739587 DOI: 10.1016/j.gene.2020.145003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/05/2020] [Accepted: 07/25/2020] [Indexed: 10/23/2022]
Abstract
Imiquimod (IMQ) is approved as a first-line treatment for genital warts caused by human papillomavirus (HPV) infection. However, the recurrence rate is very high. HPV E7 protein plays a critical role in HPV immune escape. However, the role of HPV11 E7 protein in genital warts recurrence during IMQ treatment is not clear. Here, we found that the expression profile of NHEK cells was obviously changed after IMQ treatment, and a large number of genes encoding cytokines and genes involved in cytokine-mediated signaling pathways and cellular metabolic signaling pathways were up- or downregulated. HPV11E7 overexpression inhibited the IMQ-induced production of of multiple chemokines and colony-stimulating factors in NHEK cells. Furthermore, we found that HPV11E7 could impair the activation of mitogen-activated protein kinase (MAPK) signaling pathway. Therefore, our results suggested that HPV11 E7 diminishes the production of chemokines, colony-stimulating factors and other cytokines via inhibition of the MAPK signaling pathway, which suppresses the therapeutic effect of IMQ and promotes the recurrence of diseases, such as condyloma acuminatum.
Collapse
Affiliation(s)
- Huimin Zheng
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China; Department of Dermatology, Lin Hai First People's Hospital, Taizhou 317000, Zhejiang, PR China
| | - Ziqi Zou
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou 310058, PR China
| | - Xia Wu
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China
| | - Yaohan Xu
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China
| | - Jiang Zhu
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China
| | - Qiang Zhou
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China
| | - Rui Han
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China
| | - Yinjing Song
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China.
| | - Hao Cheng
- Department of Dermatology and Venereology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang, PR China.
| |
Collapse
|
4
|
Li C, Guo L, Liu G, Guo M, Wei H, Yang Q, Wang J, Chen H. Reprogrammed CRISPR-Cas13a targeting the HPV16/18 E6 gene inhibits proliferation and induces apoptosis in E6-transformed keratinocytes. Exp Ther Med 2020; 19:3856-3860. [PMID: 32346451 DOI: 10.3892/etm.2020.8631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 03/04/2020] [Indexed: 12/26/2022] Open
Abstract
The long-lasting infection of high-risk type (type 16 or type 18) human papillomavirus (HPV) is the main cause of gynecological and urinary malignancies. Given the high mortality rate after surgery, the development of a new molecular therapy would be of value to clinicians. The aim of the present study was to achieve targeted inactivation of the viral E6 gene in keratinocytes using the reprogrammed CRISPR-Cas13a system. To accomplish this, a reprogrammed CRISPR-Cas13a system, targeting both the HPV16/18 E6 genes was constructed using a guide RNA expressing vector. The expression levels of E6 protein were measured using western blot analysis after transfection of the vector into E6-transformed keratin oocytes. Cell proliferation was analyzed using CCK-8 assays and cell apoptosis was evaluated using Hoechst 33258 staining and ELISAs examining caspase-3 levels. The results indicated that both the HPV16/18 E6 genes can be inactivated using the CRISPR-Cas13a system. Furthermore, silencing E6 inhibited cell proliferation (14±1.8% on average) and induced apoptosis (80.2±3.2% on average) in E6-transformed keratinocytes but not in normal keratinocytes. In conclusion, results of the present study demonstrate that the reprogrammed CRISPR-Cas13a system has the potential for inactivating HPV E6 gene functions.
Collapse
Affiliation(s)
- Chunjing Li
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Liwen Guo
- Department of Gynecology, Ningde Municipal Hospital, Fujian Medical University, Ningde, Fujian 352100, P.R. China
| | - Guoqing Liu
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Mingjuan Guo
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Huiling Wei
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Qiqiong Yang
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Jianfeng Wang
- Department of Urology, Foshan Maternal and Child Health Hospital, Southern Medical University, Foshan, Guangdong 528000, P.R. China
| | - Huihua Chen
- Department of Gynecology, Ningde Municipal Hospital, Fujian Medical University, Ningde, Fujian 352100, P.R. China
| |
Collapse
|
5
|
Liu YC, Cai ZM, Zhang XJ. Reprogrammed CRISPR-Cas9 targeting the conserved regions of HPV6/11 E7 genes inhibits proliferation and induces apoptosis in E7-transformed keratinocytes. Asian J Androl 2017; 18:475-9. [PMID: 26228041 PMCID: PMC4854108 DOI: 10.4103/1008-682x.157399] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The persistence infection of low-risk type (type 6 or type 11) of human papillomavirus (HPV) is the main cause of genital warts. Given the high rate of recurrence after treatment, the use of a new molecular agent is certain to be of value. The aim of this study was to achieve targeted inactivation of viral E 7 gene in keratinocytes using the reprogrammed clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated (Cas) 9 system. To accomplish this, a universal CRISPR-Cas9 system for targeting both HPV6/11 E 7 genes was constructed by using a dual guide RNA vector. After transfection of the vector into E 7-transformed keratinocytes, the expression level of E 7 protein was measured using western-blot analysis and the sequence of the E 7 gene was determined using Sanger sequencing. Cell proliferation was analyzed by CCK-8 assay, and cell apoptosis was evaluated by Hoechst 33258 staining, flow cytometry analysis and ELISA assay. The results indicated that both HPV6/11 E 7 genes can be inactivated by the single CRISPR-Cas9 system. Furthermore, silencing of E 7 led to inhibition of cell proliferation and induction of apoptosis in E 7-transformed keratinocytes but not in normal keratinocytes. Our data suggested that the reprogrammed CRISPR-Cas9 system has the potential for the development of an adjuvant therapy for genital warts.
Collapse
Affiliation(s)
| | - Zhi-Ming Cai
- Key Laboratory of Medical Reprogramming Technology, Department of Urology, The Genitourinary Institution of Shenzhen University, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xue-Jun Zhang
- Institute of Dermatology, Department of Dermatology, The First Affiliated Hospital, Anhui Medical University, Hefei; Key Laboratory of Dermatology, Ministry of Education, State Key Laboratory of Dermatology Incubation Center, Department of Dermatology, Anhui Medical University, Hefei, China
| |
Collapse
|
6
|
Onder Z, Chang V, Moroianu J. Nuclear export of cutaneous HPV8 E7 oncoprotein is mediated by a leucine-rich nuclear export signal via a CRM1 pathway. Virology 2015; 474:28-33. [PMID: 25463601 PMCID: PMC4259873 DOI: 10.1016/j.virol.2014.10.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 09/24/2014] [Accepted: 10/15/2014] [Indexed: 12/26/2022]
Abstract
We recently determined that the nuclear import of cutaneous beta genus HPV8 E7 oncoprotein it is mediated by its zinc-binding domain via direct hydrophobic interactions with the FG nucleoporins Nup62 and Nup153 (Onder and Moroianu, 2014). Here we investigated the nuclear export of HPV8 E7 oncoprotein using confocal microscopy after transfections of HeLa cells with EGFP-8cE7 and mutant plasmids and treatment with Ratjadone A nuclear export inhibitor. We determined that HPV8 E7 contains a leucine-rich nuclear export signal (NES), 76IRTFQELLF84, within its zinc-binding domain that mediates its nuclear export via a CRM1 pathway. We found that HPV8 E7 interacts with CRM1 and that the hydrophobic amino acid residues I76, F79 and L82 of the NES are essential for this interaction and for nuclear export of HPV8 E7 oncoprotein.
Collapse
Affiliation(s)
- Zeynep Onder
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA
| | - Vivian Chang
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA
| | - Junona Moroianu
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA.
| |
Collapse
|
7
|
Onder Z, Moroianu J. Nuclear import of cutaneous beta genus HPV8 E7 oncoprotein is mediated by hydrophobic interactions between its zinc-binding domain and FG nucleoporins. Virology 2013; 449:150-62. [PMID: 24418548 DOI: 10.1016/j.virol.2013.11.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 10/08/2013] [Accepted: 11/11/2013] [Indexed: 10/25/2022]
Abstract
We have previously discovered and characterized the nuclear import pathways for the E7 oncoproteins of mucosal alpha genus HPVs, type 16 and 11. Here we investigated the nuclear import of cutaneous beta genus HPV8 E7 protein using confocal microscopy after transfections of HeLa cells with EGFP-8E7 and mutant plasmids and nuclear import assays in digitonin-permeabilized HeLa cells. We determined that HPV8 E7 contains a nuclear localization signal (NLS) within its zinc-binding domain that mediates its nuclear import. Furthermore, we discovered that a mostly hydrophobic patch 65LRLFV69 within the zinc-binding domain is essential for the nuclear import and localization of HPV8 E7 via hydrophobic interactions with the FG nucleoporins Nup62 and Nup153. Substitution of the hydrophobic residues within the 65LRLFV69 patch to alanines, and not R66A mutation, disrupt the interactions between the 8E7 zinc-binding domain and Nup62 and Nup153 and consequently inhibit nuclear import of HPV8 E7.
Collapse
Affiliation(s)
- Zeynep Onder
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA
| | - Junona Moroianu
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA.
| |
Collapse
|
8
|
Eberhard J, Onder Z, Moroianu J. Nuclear import of high risk HPV16 E7 oncoprotein is mediated by its zinc-binding domain via hydrophobic interactions with Nup62. Virology 2013; 446:334-45. [PMID: 24074597 DOI: 10.1016/j.virol.2013.08.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/08/2013] [Accepted: 08/14/2013] [Indexed: 11/15/2022]
Abstract
We previously discovered that nuclear import of high risk HPV16 E7 is mediated by a cNLS located within the zinc-binding domain via a pathway that is independent of karyopherins/importins (Angeline et al., 2003; Knapp et al., 2009). In this study we continued our characterization of the cNLS and nuclear import pathway of HPV16 E7. We find that an intact zinc-binding domain is essential for the cNLS function in mediating nuclear import of HPV16 E7. Mutagenesis of cysteine residues to alanine in each of the two CysXXCys motifs involved in zinc-binding changes the nuclear localization of the EGFP-16E7 and 2xEGFP-16E7 mutants. We further discover that a patch of hydrophobic residues, 65LRLCV69, within the zinc-binding domain of HPV16 E7 mediates its nuclear import via hydrophobic interactions with the FG domain of the central channel nucleoporin Nup62.
Collapse
Affiliation(s)
- Jeremy Eberhard
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA
| | | | | |
Collapse
|