1
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Li S, Williamson ZL, Christofferson MA, Jeevanandam A, Campos SK. A peptide derived from sorting nexin 1 inhibits HPV16 entry, retrograde trafficking, and L2 membrane spanning. Tumour Virus Res 2024; 18:200287. [PMID: 38909779 DOI: 10.1016/j.tvr.2024.200287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/16/2024] [Accepted: 06/16/2024] [Indexed: 06/25/2024] Open
Abstract
High risk human papillomavirus (HPV) infection is responsible for 99 % of cervical cancers and 5 % of all human cancers worldwide. HPV infection requires the viral genome (vDNA) to gain access to nuclei of basal keratinocytes of epithelium. After virion endocytosis, the minor capsid protein L2 dictates the subcellular retrograde trafficking and nuclear localization of the vDNA during mitosis. Prior work identified a cell-permeable peptide termed SNX1.3, derived from the BAR domain of sorting nexin 1 (SNX1), that potently blocks the retrograde and nuclear trafficking of EGFR in triple negative breast cancer cells. Given the importance of EGFR and retrograde trafficking pathways in HPV16 infection, we set forth to study the effects of SNX1.3 within this context. SNX1.3 inhibited HPV16 infection by both delaying virion endocytosis, as well as potently blocking virion retrograde trafficking and Golgi localization. SNX1.3 had no effect on cell proliferation, nor did it affect post-Golgi trafficking of HPV16. Looking more directly at L2 function, SNX1.3 was found to impair membrane spanning of the minor capsid protein. Future work will focus on mechanistic studies of SNX1.3 inhibition, and the role of EGFR signaling and SNX1-mediated endosomal tubulation, cargo sorting, and retrograde trafficking in HPV infection.
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Affiliation(s)
- Shuaizhi Li
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Zachary L Williamson
- Biochemistry and Molecular & Cellular Biology Graduate Program, University of Arizona, Tucson, AZ, USA
| | | | | | - Samuel K Campos
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA; Department of Molecular & Cellular Biology, University of Arizona, Tucson, AZ, USA; Cancer Biology Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ, USA; BIO5 Institute, University of Arizona, Tucson, AZ, USA.
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2
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Li S, Williamson ZL, Christofferson MA, Jeevanandam A, Campos SK. A Peptide Derived from Sorting Nexin 1 Inhibits HPV16 Entry, Retrograde Trafficking, and L2 Membrane Spanning. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.25.595865. [PMID: 38826391 PMCID: PMC11142256 DOI: 10.1101/2024.05.25.595865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
High risk human papillomavirus (HPV) infection is responsible for 99% of cervical cancers and 5% of all human cancers worldwide. HPV infection requires the viral genome (vDNA) to gain access to nuclei of basal keratinocytes of epithelium. After virion endocytosis, the minor capsid protein L2 dictates the subcellular retrograde trafficking and nuclear localization of the vDNA during mitosis. Prior work identified a cell-permeable peptide termed SNX1.3, derived from the BAR domain of sorting nexin 1 (SNX1), that potently blocks the retrograde and nuclear trafficking of EGFR in triple negative breast cancer cells. Given the importance of EGFR and retrograde trafficking pathways in HPV16 infection, we set forth to study the effects of SNX1.3 within this context. SNX1.3 inhibited HPV16 infection by both delaying virion endocytosis, as well as potently blocking virion retrograde trafficking and Golgi localization. SNX1.3 had no effect on cell proliferation, nor did it affect post-Golgi trafficking of HPV16. Looking more directly at L2 function, SNX1.3 was found to impair membrane spanning of the minor capsid protein. Future work will focus on mechanistic studies of SNX1.3 inhibition, and the role of EGFR signaling and SNX1- mediated endosomal tubulation, cargo sorting, and retrograde trafficking in HPV infection.
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Affiliation(s)
- Shuaizhi Li
- Department of Immunobiology, University of Arizona, Tucson, AZ USA
- Current Address: Microbiologics, Inc. Saint Cloud, MN USA
| | - Zachary L Williamson
- Department of Immunobiology, University of Arizona, Tucson, AZ USA
- Current Address: Microbiologics, Inc. Saint Cloud, MN USA
- Biochemistry and Molecular & Cellular Biology Graduate Program, University of Arizona, Tucson, AZ USA
- Current Address: Department of Microbiology & Immunology, University of British Columbia, Vancouver, BC Canada
- Current Address: Department of Immunobiology, Yale University, New Haven, CT USA
- Department of Molecular & Cellular Biology, University of Arizona, Tucson, AZ USA
- Cancer Biology Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ USA
- BIO5 Institute, University of Arizona, Tucson, AZ USA, HPV16
| | - Matthew A Christofferson
- Department of Immunobiology, University of Arizona, Tucson, AZ USA
- Current Address: Department of Microbiology & Immunology, University of British Columbia, Vancouver, BC Canada
| | - Advait Jeevanandam
- Department of Immunobiology, University of Arizona, Tucson, AZ USA
- Current Address: Department of Immunobiology, Yale University, New Haven, CT USA
| | - Samuel K Campos
- Department of Immunobiology, University of Arizona, Tucson, AZ USA
- Department of Molecular & Cellular Biology, University of Arizona, Tucson, AZ USA
- Cancer Biology Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ USA
- BIO5 Institute, University of Arizona, Tucson, AZ USA, HPV16
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3
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Speckhart K, Choi J, DiMaio D, Tsai B. The BICD2 dynein cargo adaptor binds to the HPV16 L2 capsid protein and promotes HPV infection. PLoS Pathog 2024; 20:e1012289. [PMID: 38829892 PMCID: PMC11230635 DOI: 10.1371/journal.ppat.1012289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 07/08/2024] [Accepted: 05/24/2024] [Indexed: 06/05/2024] Open
Abstract
During entry, human papillomavirus (HPV) traffics from the endosome to the trans Golgi network (TGN) and Golgi and then the nucleus to cause infection. Although dynein is thought to play a role in HPV infection, how this host motor recruits the virus to support infection and which entry step(s) requires dynein are unclear. Here we show that the dynein cargo adaptor BICD2 binds to the HPV L2 capsid protein during entry, recruiting HPV to dynein for transport of the virus along the endosome-TGN/Golgi axis to promote infection. In the absence of BICD2 function, HPV accumulates in the endosome and TGN and infection is inhibited. Cell-based and in vitro binding studies identified a short segment near the C-terminus of L2 that can directly interact with BICD2. Our results reveal the molecular basis by which the dynein motor captures HPV to promote infection and identify this virus as a novel cargo of the BICD2 dynein adaptor.
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Affiliation(s)
- Kaitlyn Speckhart
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Jeongjoon Choi
- Department of Genetics, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Daniel DiMaio
- Department of Genetics, Yale School of Medicine, New Haven, Connecticut, United States of America
| | - Billy Tsai
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
- Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
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4
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Izaguirre G, Phan LMU, Asif S, Alam S, Meyers C, Rong L. Diversity in Proprotein Convertase Reactivity among Human Papillomavirus Types. Viruses 2023; 16:39. [PMID: 38257739 PMCID: PMC10820984 DOI: 10.3390/v16010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/24/2024] Open
Abstract
The cleavage of viral surface proteins by furin is associated with some viruses' high virulence and infectivity. The human papillomavirus (HPV) requires the proteolytic processing of its capsid proteins for activation before entry. Variability in reactivity with furin and other proprotein convertases (PCs) among HPV types was investigated. HPV16, the most prevalent and carcinogenic HPV type, reacted with PCs with the broadest selectivity compared to other types in reactions of pseudoviral particles with the recombinant PCs, furin, PC4, PC5, PACE4, and PC7. Proteolytic preactivation was assessed using a well-established entry assay into PC-inhibited cells based on the green fluorescent protein as a reporter. The inhibition of the target cell PC activity with serpin-based PC-selective inhibitors also showed a diversity of PC selectivity among HPV types. HPV16 reacted with furin at the highest rate compared to the other types in time-dependent preactivation reactions and produced the highest entry values standardized to pseudoviral particle concentration. The predominant expression of furin in keratinocytes and the high reactivity of HPV16 with this enzyme highlight the importance of selectively targeting furin as a potential antiviral therapeutic approach.
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Affiliation(s)
- Gonzalo Izaguirre
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Lam Minh Uyen Phan
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Shaan Asif
- Department of Periodontics, College of Dentistry, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Samina Alam
- Departments of Microbiology and Immunology, College of Medicine, Penn State University, Hershey, PA 17033, USA
| | - Craig Meyers
- Departments of Microbiology and Immunology, College of Medicine, Penn State University, Hershey, PA 17033, USA
| | - Lijun Rong
- Departments of Microbiology and Immunology, College of Medicine, University of Illinois Chicago, Chicago, IL 60612, USA
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5
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Becker M, Conca DV, Dorma N, Mistry N, Hahlin E, Frängsmyr L, Bally M, Arnberg N, Gerold G. Efficient clathrin-mediated entry of enteric adenoviruses in human duodenal cells. J Virol 2023; 97:e0077023. [PMID: 37823645 PMCID: PMC10617564 DOI: 10.1128/jvi.00770-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/08/2023] [Indexed: 10/13/2023] Open
Abstract
IMPORTANCE Enteric adenoviruses have historically been difficult to grow in cell culture, which has resulted in lack of knowledge of host factors and pathways required for infection of these medically relevant viruses. Previous studies in non-intestinal cell lines showed slow infection kinetics and generated comparatively low virus yields compared to other adenovirus types. We suggest duodenum-derived HuTu80 cells as a superior cell line for studies to complement efforts using complex intestinal tissue models. We show that viral host cell factors required for virus entry differ between cell lines from distinct origins and demonstrate the importance of clathrin-mediated endocytosis.
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Affiliation(s)
- Miriam Becker
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
- Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Dario Valter Conca
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Noemi Dorma
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Nitesh Mistry
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Elin Hahlin
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Lars Frängsmyr
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
| | - Marta Bally
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
| | - Niklas Arnberg
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden
| | - Gisa Gerold
- Department of Biochemistry & Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
- Department of Clinical Microbiology, Umeå University, Umeå, Sweden
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, Umeå, Sweden
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6
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Rizzato M, Mao F, Chardon F, Lai KY, Villalonga-Planells R, Drexler HCA, Pesenti ME, Fiskin M, Roos N, King KM, Li S, Gamez ER, Greune L, Dersch P, Simon C, Masson M, Van Doorslaer K, Campos SK, Schelhaas M. Master mitotic kinases regulate viral genome delivery during papillomavirus cell entry. Nat Commun 2023; 14:355. [PMID: 36683055 PMCID: PMC9868124 DOI: 10.1038/s41467-023-35874-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/05/2023] [Indexed: 01/24/2023] Open
Abstract
Mitosis induces cellular rearrangements like spindle formation, Golgi fragmentation, and nuclear envelope breakdown. Similar to certain retroviruses, nuclear delivery during entry of human papillomavirus (HPV) genomes is facilitated by mitosis, during which minor capsid protein L2 tethers viral DNA to mitotic chromosomes. However, the mechanism of viral genome delivery and tethering to condensed chromosomes is barely understood. It is unclear, which cellular proteins facilitate this process or how this process is regulated. This work identifies crucial phosphorylations on HPV minor capsid protein L2 occurring at mitosis onset. L2's chromosome binding region (CBR) is sequentially phosphorylated by the master mitotic kinases CDK1 and PLK1. L2 phosphorylation, thus, regulates timely delivery of HPV vDNA to mitotic chromatin during mitosis. In summary, our work demonstrates a crucial role of mitotic kinases for nuclear delivery of viral DNA and provides important insights into the molecular mechanism of pathogen import into the nucleus during mitosis.
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Affiliation(s)
- Matteo Rizzato
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Fuxiang Mao
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Florian Chardon
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Kun-Yi Lai
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
- Interfaculty Centre 'Cells in Motion' (CiM), Westphalian Wilhelms-University of Münster, Münster, Germany
| | | | | | | | - Mert Fiskin
- UMR 7242 Biotechnologie et signalisation cellulaire, CNRS, UdS, ESBS, Illkirch, France
| | - Nora Roos
- Institute of Medical Virology and Epidemiology of Viral Diseases, Tübingen, Germany
| | - Kelly M King
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, USA
| | - Shuaizhi Li
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Eduardo R Gamez
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawai'i at Manoa, Honolulu, Hawaii, 96813-5525, USA
| | - Lilo Greune
- Institute of Infectiology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Petra Dersch
- Institute of Infectiology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Claudia Simon
- Institute of Medical Virology and Epidemiology of Viral Diseases, Tübingen, Germany
| | - Murielle Masson
- UMR 7242 Biotechnologie et signalisation cellulaire, CNRS, UdS, ESBS, Illkirch, France
| | - Koenraad Van Doorslaer
- School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ, USA
- Cancer Biology Graduate Interdisciplinary Program, Genetics Graduate Interdisciplinary Program, UA Cancer Center, University of Arizona, Tucson, AZ, USA
| | - Samuel K Campos
- Department of Immunobiology, University of Arizona, Tucson, AZ, USA
| | - Mario Schelhaas
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany.
- Interfaculty Centre 'Cells in Motion' (CiM), Westphalian Wilhelms-University of Münster, Münster, Germany.
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7
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Harwood MC, Woo TT, Takeo Y, DiMaio D, Tsai B. HPV is a cargo for the COPI sorting complex during virus entry. SCIENCE ADVANCES 2023; 9:eadc9830. [PMID: 36662862 PMCID: PMC9858521 DOI: 10.1126/sciadv.adc9830] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 12/20/2022] [Indexed: 05/30/2023]
Abstract
During entry, human papillomavirus (HPV) traffics from the cell surface to the endosome and then to the trans-Golgi network (TGN) and Golgi apparatus. HPV must transit across the TGN/Golgi and exit these compartments to reach the nucleus to cause infection, although how these steps are accomplished is unclear. Combining cellular fractionation, unbiased proteomics, and gene knockdown strategies, we identified the coat protein complex I (COPI), a highly conserved protein complex that facilitates retrograde trafficking of cellular cargos, as a host factor required for HPV infection. Upon TGN/Golgi arrival, the cytoplasmic segment of HPV L2 binds directly to COPI. COPI depletion causes the accumulation of HPV in the TGN/Golgi, resembling the fate of a COPI binding-defective L2 mutant. We propose that the L2-COPI interaction drives HPV trafficking through the TGN and Golgi stacks during virus entry. This shows that an incoming virus is a cargo of the COPI complex.
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Affiliation(s)
- Mara C. Harwood
- Department of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
- Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Tai-Ting Woo
- Department of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
| | - Yuka Takeo
- Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA
| | - Daniel DiMaio
- Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA
| | - Billy Tsai
- Department of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Ann Arbor, MI 48109, USA
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8
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Molenberghs F, Verschuuren M, Barbier M, Bogers JJ, Cools N, Delputte P, Schelhaas M, De Vos WH. Cells infected with human papilloma pseudovirus display nuclear reorganization and heterogenous infection kinetics. Cytometry A 2022; 101:1035-1048. [PMID: 35668549 DOI: 10.1002/cyto.a.24663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/12/2022] [Accepted: 06/02/2022] [Indexed: 01/27/2023]
Abstract
Human papillomaviruses (HPV) are small, non-enveloped DNA viruses, which upon chronic infection can provoke cervical and head-and-neck cancers. Although the infectious life cycle of HPV has been studied and a vaccine is available for the most prevalent cancer-causing HPV types, there are no antiviral agents to treat infected patients. Hence, there is a need for novel therapeutic entry points and a means to identify them. In this work, we have used high-content microscopy to quantitatively investigate the early phase of HPV infection. Human cervical cancer cells and immortalized keratinocytes were exposed to pseudoviruses (PsV) of the widespread HPV type 16, in which the viral genome was replaced by a pseudogenome encoding a fluorescent reporter protein. Using the fluorescent signal as readout, we measured differences in infection between cell lines, which directly correlated with host cell proliferation rate. Parallel multiparametric analysis of nuclear organization revealed that HPV PsV infection alters nuclear organization and inflates promyelocytic leukemia protein body content, positioning these events at the early stage of HPV infection, upstream of viral replication. Time-resolved analysis revealed a marked heterogeneity in infection kinetics even between two daughter cells, which we attribute to differences in viral load. Consistent with the requirement for mitotic nuclear envelope breakdown, pharmacological inhibition of the cell cycle dramatically blunted infection efficiency. Thus, by systematic image-based single cell analysis, we revealed phenotypic alterations that accompany HPV PsV infection in individual cells, and which may be relevant for therapeutic drug screens.
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Affiliation(s)
- Freya Molenberghs
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Marlies Verschuuren
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Michaël Barbier
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences and Health Sciences, University of Antwerp, Antwerp, Belgium.,Simply Complex Lab, UNAM, Bilkent University, Ankara, Turkey
| | - Johannes J Bogers
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Nathalie Cools
- Laboratory of Experimental Hematology, Faculty Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Peter Delputte
- Laboratory of Microbiology, Parasitology and Hygiene, Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Mario Schelhaas
- Institute of Cellular Virology, University of Münster, Münster, Germany
| | - Winnok H De Vos
- Laboratory of Cell Biology and Histology, Department of Veterinary Sciences and Health Sciences, University of Antwerp, Antwerp, Belgium.,Antwerp Centre for Advanced Microscopy (ACAM), University of Antwerp, Antwerp, Belgium.,μNEURO Research Centre of Excellence, University of Antwerp, Antwerp, Belgium
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9
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Ramos-Martínez IE, Ramos-Martínez E, Segura-Velázquez RÁ, Saavedra-Montañez M, Cervantes-Torres JB, Cerbón M, Papy-Garcia D, Zenteno E, Sánchez-Betancourt JI. Heparan Sulfate and Sialic Acid in Viral Attachment: Two Sides of the Same Coin? Int J Mol Sci 2022; 23:ijms23179842. [PMID: 36077240 PMCID: PMC9456526 DOI: 10.3390/ijms23179842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/26/2022] [Accepted: 08/27/2022] [Indexed: 12/11/2022] Open
Abstract
Sialic acids and heparan sulfates make up the outermost part of the cell membrane and the extracellular matrix. Both structures are characterized by being negatively charged, serving as receptors for various pathogens, and are highly expressed in the respiratory and digestive tracts. Numerous viruses use heparan sulfates as receptors to infect cells; in this group are HSV, HPV, and SARS-CoV-2. Other viruses require the cell to express sialic acids, as is the case in influenza A viruses and adenoviruses. This review aims to present, in a general way, the participation of glycoconjugates in viral entry, and therapeutic strategies focused on inhibiting the interaction between the virus and the glycoconjugates. Interestingly, there are few studies that suggest the participation of both glycoconjugates in the viruses addressed here. Considering the biological redundancy that exists between heparan sulfates and sialic acids, we propose that it is important to jointly evaluate and design strategies that contemplate inhibiting the interactions of both glycoconjugates. This approach will allow identifying new receptors and lead to a deeper understanding of interspecies transmission.
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Affiliation(s)
- Ivan Emmanuel Ramos-Martínez
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Edgar Ramos-Martínez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - René Álvaro Segura-Velázquez
- Unidad de Investigación, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Manuel Saavedra-Montañez
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Jacquelynne Brenda Cervantes-Torres
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Marco Cerbón
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Dulce Papy-Garcia
- Glycobiology, Cell Growth ant Tissue Repair Research Unit (Gly-CRRET), Université Paris Est Créteil (UPEC), F-94010 Créteil, France
| | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - José Ivan Sánchez-Betancourt
- Departamento de Medicina y Zootecnia de Cerdos, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
- Correspondence:
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10
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Single-dose HPV vaccine immunity: is there a role for non-neutralizing antibodies? Trends Immunol 2022; 43:815-825. [PMID: 35995705 DOI: 10.1016/j.it.2022.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/28/2022] [Accepted: 07/30/2022] [Indexed: 11/22/2022]
Abstract
A single dose of human papillomavirus (HPV) vaccine against HPV infection (prerequisite for cervical cancer) appears to be as efficacious as two or three doses, despite inducing lower antibody titers. Neutralizing antibodies are thought to be the primary mediator of protection, but the threshold for protection is unknown. Antibody functions beyond neutralization have not been explored for HPV vaccines. Here, we discuss the immune mechanisms of HPV vaccines, with a focus on non-neutralizing antibody effector functions. In the context of single-dose HPV vaccination where antibody is limiting, we propose that non-neutralizing antibody functions may contribute to preventing HPV infection. Understanding the immunological basis of protection for single-dose HPV vaccination will provide a rationale for implementing single-dose HPV vaccine regimens.
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11
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Vieira GV, Somera dos Santos F, Lepique AP, da Fonseca CK, Innocentini LMAR, Braz-Silva PH, Quintana SM, Sales KU. Proteases and HPV-Induced Carcinogenesis. Cancers (Basel) 2022; 14:cancers14133038. [PMID: 35804810 PMCID: PMC9264903 DOI: 10.3390/cancers14133038] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/01/2022] [Accepted: 06/15/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Human papillomavirus (HPV) infection is a sexually transmitted disease with high prevalence worldwide. Although most HPV infections do not lead to cancer, some HPV types are correlated with the majority of cervical cancers, and with some anogenital and oropharyngeal cancers. Moreover, enzymes known as proteases play an essential role in the pathogenic process in HPV-induced carcinogenesis. This review highlights the role of proteases and recent epidemiological data regarding HPV-dependent carcinogenesis. Abstract Persistent infection with Human papillomavirus (HPV) is the main etiologic factor for pre-malignant and malignant cervical lesions. Moreover, HPV is also associated with oropharynx and other anogenital carcinomas. Cancer-causing HPV viruses classified as group 1 carcinogens include 12 HPV types, with HPV 16 and 18 being the most prevalent. High-risk HPVs express two oncoproteins, E6 and E7, the products of which are responsible for the inhibition of p53 and pRB proteins, respectively, in human keratinocytes and cellular immortalization. p53 and pRB are pleiotropic proteins that regulate the activity of several signaling pathways and gene expression. Among the important factors that are augmented in HPV-mediated carcinogenesis, proteases not only control processes involved in cellular carcinogenesis but also control the microenvironment. For instance, genetic polymorphisms of matrix metalloproteinase 1 (MMP-1) are associated with carcinoma invasiveness. Similarly, the serine protease inhibitors hepatocyte growth factor activator inhibitor-1 (HAI-1) and -2 (HAI-2) have been identified as prognostic markers for HPV-dependent cervical carcinomas. This review highlights the most crucial mechanisms involved in HPV-dependent carcinogenesis, and includes a section on the proteolytic cascades that are important for the progression of this disease and their impact on patient health, treatment, and survival.
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Affiliation(s)
- Gabriel Viliod Vieira
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (G.V.V.); (C.K.d.F.); (L.M.A.R.I.)
| | - Fernanda Somera dos Santos
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (F.S.d.S.); (S.M.Q.)
| | - Ana Paula Lepique
- Department of Immunology, Biomedical Sciences Institute, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil;
| | - Carol Kobori da Fonseca
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (G.V.V.); (C.K.d.F.); (L.M.A.R.I.)
| | - Lara Maria Alencar Ramos Innocentini
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (G.V.V.); (C.K.d.F.); (L.M.A.R.I.)
- Clinical Hospital of Ribeirao Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, SP, Brazil
| | - Paulo Henrique Braz-Silva
- Department of Stomatology, School of Dentistry, University of Sao Paulo, São Paulo 05508-000, SP, Brazil;
- Laboratory of Virology, Institute of Tropical Medicine of Sao Paulo, School of Medicine, University of Sao Paulo, Sao Paulo 05403-000, SP, Brazil
| | - Silvana Maria Quintana
- Department of Gynecology and Obstetrics, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (F.S.d.S.); (S.M.Q.)
| | - Katiuchia Uzzun Sales
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto 14049-900, SP, Brazil; (G.V.V.); (C.K.d.F.); (L.M.A.R.I.)
- Correspondence: ; Tel.: +55-16-3315-9113
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12
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Mikuličić S, Strunk J, Florin L. HPV16 Entry into Epithelial Cells: Running a Gauntlet. Viruses 2021; 13:v13122460. [PMID: 34960729 PMCID: PMC8706107 DOI: 10.3390/v13122460] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/01/2021] [Accepted: 12/02/2021] [Indexed: 12/16/2022] Open
Abstract
During initial infection, human papillomaviruses (HPV) take an unusual trafficking pathway through their host cell. It begins with a long period on the cell surface, during which the capsid is primed and a virus entry platform is formed. A specific type of clathrin-independent endocytosis and subsequent retrograde trafficking to the trans-Golgi network follow this. Cellular reorganization processes, which take place during mitosis, enable further virus transport and the establishment of infection while evading intrinsic cellular immune defenses. First, the fragmentation of the Golgi allows the release of membrane-encased virions, which are partially protected from cytoplasmic restriction factors. Second, the nuclear envelope breakdown opens the gate for these virus–vesicles to the cell nucleus. Third, the dis- and re-assembly of the PML nuclear bodies leads to the formation of modified virus-associated PML subnuclear structures, enabling viral transcription and replication. While remnants of the major capsid protein L1 and the viral DNA remain in a transport vesicle, the viral capsid protein L2 plays a crucial role during virus entry, as it adopts a membrane-spanning conformation for interaction with various cellular proteins to establish a successful infection. In this review, we follow the oncogenic HPV type 16 during its long journey into the nucleus, and contrast pro- and antiviral processes.
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13
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Recent Advances in Our Understanding of the Infectious Entry Pathway of Human Papillomavirus Type 16. Microorganisms 2021; 9:microorganisms9102076. [PMID: 34683397 PMCID: PMC8540256 DOI: 10.3390/microorganisms9102076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 09/27/2021] [Indexed: 12/31/2022] Open
Abstract
Papillomaviruses are a diverse viral species, but several types such as HPV16 are given special attention due to their contribution towards the pathogenesis of several major cancers. In this review, we will summarize how the knowledge of HPV16 entry has expanded since the last comprehensive HPV16 entry review our lab published in 2017.
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14
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Qiu J, Hu F, Shao T, Guo Y, Dai Z, Nie H, Olasunkanmi OI, Qi Y, Chen Y, Lin L, Zhao W, Zhong Z, Wang Y. Blocking of EGFR Signaling Is a Latent Strategy for the Improvement of Prognosis of HPV-Induced Cancer. Front Oncol 2021; 11:633794. [PMID: 34646755 PMCID: PMC8503613 DOI: 10.3389/fonc.2021.633794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 08/19/2021] [Indexed: 01/10/2023] Open
Abstract
Human papillomavirus (HPV) is a double-stranded DNA (dsDNA) virus, and its high-risk subtypes increase cancer risks. However, the mechanism of HPV infection and pathogenesis still remain unclear. Therefore, understanding the molecular mechanisms and the pathogenesis of HPV are crucial in the prevention of HPV-related cancers. In this study, we analyzed cervix squamous cell carcinoma (CESC) and head and neck carcinoma (HNSC) combined data to investigate various HPV-induced cancer common features. We showed that epidermal growth factor receptor (EGFR) was downregulated in HPV-positive (HPV+) cancer, and that HPV+ cancer patients exhibited better prognosis than HPV-negative (HPV-) cancer patients. Our study also showed that TP53 mutation rate is lower in HPV+ cancer than in HPV- cancer and that TP53 can be modulated by HPV E7 protein. However, there was no significant difference in the expression of wildtype TP53 in both groups. Subsequently, we constructed HPV-human interaction network and found that EGFR is a critical factor. From the network, we also noticed that EGFR is regulated by HPV E7 protein and hsa-miR-944. Moreover, while phosphorylated EGFR is associated with a worse prognosis, EGFR total express level is not significantly correlated with prognosis. This indicates that EGFR activation will induce a worse outcome in HPV+ cancer patients. Further enrichment analysis showed that EGFR downstream pathway and cancer relative pathway are diversely activated in HPV+ cancer and HPV- cancer. In summary, HPV E7 protein downregulates EGFR that downregulates phosphorylated EGFR and inhibit EGFR-related pathways which in turn and consequently induce better prognosis.
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Affiliation(s)
- Jianfa Qiu
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Feifei Hu
- Department of Obstetrics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Tingting Shao
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Yuqiang Guo
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Zongmao Dai
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Huanhuan Nie
- Department of Microbiology, Harbin Medical University, Harbin, China
| | | | - Yue Qi
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Yang Chen
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Lexun Lin
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Wenran Zhao
- Department of Cell Biology, Harbin Medical University, Harbin, China
| | - Zhaohua Zhong
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Yan Wang
- Department of Microbiology, Harbin Medical University, Harbin, China
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15
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Pampalakis G, Zingkou E, Panagiotidis C, Sotiropoulou G. Kallikreins emerge as new regulators of viral infections. Cell Mol Life Sci 2021; 78:6735-6744. [PMID: 34459952 PMCID: PMC8404027 DOI: 10.1007/s00018-021-03922-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/23/2021] [Accepted: 08/12/2021] [Indexed: 01/13/2023]
Abstract
Kallikrein-related peptidases (KLKs) or kallikreins have been linked to diverse (patho) physiological processes, such as the epidermal desquamation and inflammation, seminal clot liquefaction, neurodegeneration, and cancer. Recent mounting evidence suggests that KLKs also represent important regulators of viral infections. It is well-established that certain enveloped viruses, including influenza and coronaviruses, require proteolytic processing of their hemagglutinin or spike proteins, respectively, to infect host cells. Similarly, the capsid protein of the non-enveloped papillomavirus L1 should be proteolytically cleaved for viral uncoating. Consequently, extracellular or membrane-bound proteases of the host cells are instrumental for viral infections and represent potential targets for drug development. Here, we summarize how extracellular proteolysis mediated by the kallikreins is implicated in the process of influenza (and potentially coronavirus and papillomavirus) entry into host cells. Besides direct proteolytic activation of viruses, KLK5 and 12 promote viral entry indirectly through proteolytic cascade events, like the activation of thrombolytic enzymes that also can process hemagglutinin, while additional functions of KLKs in infection cannot be excluded. In the light of recent evidence, KLKs represent potential host targets for the development of new antivirals. Humanized animal models to validate their key functions in viral infections will be valuable.
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Affiliation(s)
- Georgios Pampalakis
- Department of Pharmacognosy-Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
| | - Eleni Zingkou
- Department of Pharmacy, School of Health Sciences, University of Patras, 265 04, Rion-Patras, Greece
| | - Christos Panagiotidis
- Department of Pharmacognosy-Pharmacology, School of Pharmacy, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - Georgia Sotiropoulou
- Department of Pharmacy, School of Health Sciences, University of Patras, 265 04, Rion-Patras, Greece
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16
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Ozbun MA, Campos SK. The long and winding road: human papillomavirus entry and subcellular trafficking. Curr Opin Virol 2021; 50:76-86. [PMID: 34416595 DOI: 10.1016/j.coviro.2021.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/28/2022]
Abstract
Human papillomaviruses (HPVs) infect and replicate in differentiating mucosal and cutaneous epithelium. Most HPV infections are asymptomatic or cause transient benign neoplasia. However, persistent infections by oncogenic HPV types can progress to cancer. During infectious entry into host keratinocytes, HPV particles interact with many host proteins, beginning with major capsid protein L1 binding to cellular heparan sulfate and a series of enzymatic capsid modifications that promote infectious cellular entry. After utilizing the endosomal pathway to uncoat the viral genome (vDNA), the minor capsid protein L2/vDNA complex is retrograde trafficked to the Golgi, and thereafter, to the nucleus where viral transcription initiates. Post-Golgi trafficking is dependent on mitosis, with L2-dependent tethering of vDNA to mitotic chromosomes before accumulation at nuclear substructures in G1. This review summarizes the current knowledge of the HPV entry pathway, the role of cellular proteins in this process, and notes many gaps in our understanding.
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Affiliation(s)
- Michelle A Ozbun
- Departments of Molecular Genetics & Microbiology, Obstetrics & Gynecology, The University of New Mexico School of Medicine, Albuquerque, NM 87131, USA; The University of New Mexico Comprehensive Cancer Center, Albuquerque, NM 87131, USA.
| | - Samuel K Campos
- Departments of Immunobiology, Molecular & Cellular Biology, and the Cancer Biology Graduate Interdisciplinary Program, The University of Arizona, Tucson, AZ 85721, USA; The BIO5 Institute, University of Arizona, Tucson, AZ 85721, USA.
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17
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Heparan Sulfate Proteoglycans in Viral Infection and Treatment: A Special Focus on SARS-CoV-2. Int J Mol Sci 2021; 22:ijms22126574. [PMID: 34207476 PMCID: PMC8235362 DOI: 10.3390/ijms22126574] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 01/27/2023] Open
Abstract
Heparan sulfate proteoglycans (HSPGs) encompass a group of glycoproteins composed of unbranched negatively charged heparan sulfate (HS) chains covalently attached to a core protein. The complex HSPG biosynthetic machinery generates an extraordinary structural variety of HS chains that enable them to bind a plethora of ligands, including growth factors, morphogens, cytokines, chemokines, enzymes, matrix proteins, and bacterial and viral pathogens. These interactions translate into key regulatory activity of HSPGs on a wide range of cellular processes such as receptor activation and signaling, cytoskeleton assembly, extracellular matrix remodeling, endocytosis, cell-cell crosstalk, and others. Due to their ubiquitous expression within tissues and their large functional repertoire, HSPGs are involved in many physiopathological processes; thus, they have emerged as valuable targets for the therapy of many human diseases. Among their functions, HSPGs assist many viruses in invading host cells at various steps of their life cycle. Viruses utilize HSPGs for the attachment to the host cell, internalization, intracellular trafficking, egress, and spread. Recently, HSPG involvement in the pathogenesis of SARS-CoV-2 infection has been established. Here, we summarize the current knowledge on the molecular mechanisms underlying HSPG/SARS-CoV-2 interaction and downstream effects, and we provide an overview of the HSPG-based therapeutic strategies that could be used to combat such a fearsome virus.
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18
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How DNA and RNA Viruses Exploit Host Chaperones to Promote Infection. Viruses 2021; 13:v13060958. [PMID: 34064125 PMCID: PMC8224278 DOI: 10.3390/v13060958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 12/18/2022] Open
Abstract
To initiate infection, a virus enters a host cell typically via receptor-dependent endocytosis. It then penetrates a subcellular membrane, reaching a destination that supports transcription, translation, and replication of the viral genome. These steps lead to assembly and morphogenesis of the new viral progeny. The mature virus finally exits the host cell to begin the next infection cycle. Strikingly, viruses hijack host molecular chaperones to accomplish these distinct entry steps. Here we highlight how DNA viruses, including polyomavirus and the human papillomavirus, exploit soluble and membrane-associated chaperones to enter a cell, penetrating and escaping an intracellular membrane en route for infection. We also describe the mechanism by which RNA viruses—including flavivirus and coronavirus—co-opt cytosolic and organelle-selective chaperones to promote viral endocytosis, protein biosynthesis, replication, and assembly. These examples underscore the importance of host chaperones during virus infection, potentially revealing novel antiviral strategies to combat virus-induced diseases.
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19
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Lai KY, Rizzato M, Aydin I, Villalonga-Planells R, Drexler HCA, Schelhaas M. A Ran-binding protein facilitates nuclear import of human papillomavirus type 16. PLoS Pathog 2021; 17:e1009580. [PMID: 33974675 PMCID: PMC8139508 DOI: 10.1371/journal.ppat.1009580] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/21/2021] [Accepted: 04/23/2021] [Indexed: 01/01/2023] Open
Abstract
Human papillomaviruses (HPVs) utilize an atypical mode of nuclear import during cell entry. Residing in the Golgi apparatus until mitosis onset, a subviral complex composed of the minor capsid protein L2 and viral DNA (L2/vDNA) is imported into the nucleus after nuclear envelope breakdown by associating with mitotic chromatin. In this complex, L2 plays a crucial role in the interactions with cellular factors that enable delivery and ultimately tethering of the viral genome to mitotic chromatin. To date, the cellular proteins facilitating these steps remain unknown. Here, we addressed which cellular proteins may be required for this process. Using label-free mass spectrometry, biochemical assays, microscopy, and functional virological assays, we discovered that L2 engages a hitherto unknown protein complex of Ran-binding protein 10 (RanBP10), karyopherin alpha2 (KPNA2), and dynein light chain DYNLT3 to facilitate transport towards mitotic chromatin. Thus, our study not only identifies novel cellular interactors and mechanism that facilitate a poorly understood step in HPV entry, but also a novel cellular transport complex. Human papillomaviruses (HPVs) cause proliferative lesions such as benign warts or malignant invasive cancers. Like other DNA viruses, HPV has to deliver its genome to the nucleus for viral genome transcription and replication. After initial attachment, HPVs are endocytosed to be eventually directed to the trans-Golgi-network (TGN) by intracellular trafficking, where they reside until cell division. Mitosis onset enables access of the virus to cellular chromatin after nuclear envelope breakdown. Tethering of the virus to mitotic chromatin ensures nuclear delivery upon reformation of the nuclear envelope after mitosis. Our previous work showed that the minor capsid protein L2 facilitates nuclear delivery. However, the detailed mechanism, namely, how HPV trafficks from cytosol to the nuclear space, is barely understood. Here, we identified for the first time cellular proteins that interacted with L2 for nuclear import. Mechanistically, the proteins formed a hitherto unknown cellular transport complex that interacted with L2 to direct the virus to mitotic chromosomes by microtubular transport. Our findings provided not only evidence for a transport mechanism of a poorly understood step of HPV entry, but also discovered a novel cellular transport complex.
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Affiliation(s)
- Kun-Yi Lai
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
- Interfaculty Centre ‘Cells in Motion’ (CiM), Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Matteo Rizzato
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | - Inci Aydin
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
| | | | - Hannes C. A. Drexler
- Biomolecular Mass Spectrometry Unit, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Mario Schelhaas
- Institute of Cellular Virology, Westphalian Wilhelms-University of Münster, Münster, Germany
- Interfaculty Centre ‘Cells in Motion’ (CiM), Westphalian Wilhelms-University of Münster, Münster, Germany
- * E-mail:
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20
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Skeate JG, Segerink WH, Garcia MD, Fernandez DJ, Prins R, Lühen KP, Voss FO, Da Silva DM, Kast WM. Theta-Defensins Inhibit High-Risk Human Papillomavirus Infection Through Charge-Driven Capsid Clustering. Front Immunol 2020; 11:561843. [PMID: 33154746 PMCID: PMC7586039 DOI: 10.3389/fimmu.2020.561843] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/24/2020] [Indexed: 11/26/2022] Open
Abstract
Persistent infection with high-risk human papillomavirus (hrHPV) genotypes results in a large number of anogenital and head and neck cancers worldwide. Although prophylactic vaccination coverage has improved, there remains a need to develop methods that inhibit viral transmission toward preventing the spread of HPV-driven disease. Defensins are a class of innate immune effector peptides that function to protect hosts from infection by pathogens such as viruses and bacteria. Previous work utilizing α and β defensins from humans has demonstrated that the α-defensin HD5 is effective at inhibiting the most common high-risk genotype, HPV16. A third class of defensin that has yet to be explored are θ-defensins: small, 18-amino acid cyclic peptides found in old-world monkeys whose unique structure makes them both highly cationic and resistant to degradation. Here we show that the prototype θ-defensin, rhesus theta defensin 1, inhibits hrHPV infection through a mechanism involving capsid clustering that inhibits virions from binding to cell surface receptor complexes.
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Affiliation(s)
- Joseph G Skeate
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Wouter H Segerink
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Mauricio D Garcia
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Daniel J Fernandez
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Ruben Prins
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Kim P Lühen
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States
| | - Féline O Voss
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Diane M Da Silva
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States.,Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - W Martin Kast
- Department of Molecular Microbiology & Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.,Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, United States.,Department of Obstetrics and Gynecology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
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21
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Uhlorn BL, Jackson R, Li S, Bratton SM, Van Doorslaer K, Campos SK. Vesicular trafficking permits evasion of cGAS/STING surveillance during initial human papillomavirus infection. PLoS Pathog 2020; 16:e1009028. [PMID: 33253291 PMCID: PMC7728285 DOI: 10.1371/journal.ppat.1009028] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 12/10/2020] [Accepted: 10/02/2020] [Indexed: 12/26/2022] Open
Abstract
Oncogenic human papillomaviruses (HPVs) replicate in differentiating epithelium, causing 5% of cancers worldwide. Like most other DNA viruses, HPV infection initiates after trafficking viral genome (vDNA) to host cell nuclei. Cells possess innate surveillance pathways to detect microbial components or physiological stresses often associated with microbial infections. One of these pathways, cGAS/STING, induces IRF3-dependent antiviral interferon (IFN) responses upon detection of cytosolic DNA. Virion-associated vDNA can activate cGAS/STING during initial viral entry and uncoating/trafficking, and thus cGAS/STING is an obstacle to many DNA viruses. HPV has a unique vesicular trafficking pathway compared to many other DNA viruses. As the capsid uncoats within acidic endosomal compartments, minor capsid protein L2 protrudes across vesicular membranes to facilitate transport of vDNA to the Golgi. L2/vDNA resides within the Golgi lumen until G2/M, whereupon vesicular L2/vDNA traffics along spindle microtubules, tethering to chromosomes to access daughter cell nuclei. L2/vDNA-containing vesicles likely remain intact until G1, following nuclear envelope reformation. We hypothesize that this unique vesicular trafficking protects HPV from cGAS/STING surveillance. Here, we investigate cGAS/STING responses to HPV infection. DNA transfection resulted in acute cGAS/STING activation and downstream IFN responses. In contrast, HPV infection elicited minimal cGAS/STING and IFN responses. To determine the role of vesicular trafficking in cGAS/STING evasion, we forced premature viral penetration of vesicular membranes with membrane-perturbing cationic lipids. Such treatment renders a non-infectious trafficking-defective mutant HPV infectious, yet susceptible to cGAS/STING detection. Overall, HPV evades cGAS/STING by its unique subcellular trafficking, a property that may contribute to establishment of infection.
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Affiliation(s)
- Brittany L. Uhlorn
- Cancer Biology Graduate Interdisciplinary Program, The University of Arizona, Tucson, Arizona, United States of America
| | - Robert Jackson
- School of Animal & Comparative Biomedical Sciences, The University of Arizona, Tucson, Arizona, United States of America
| | - Shuaizhi Li
- Department of Immunobiology, The University of Arizona, Tucson, Arizona, United States of America
| | - Shauna M. Bratton
- Department of Physiology, The University of Arizona, Tucson, Arizona, United States of America
| | - Koenraad Van Doorslaer
- Cancer Biology Graduate Interdisciplinary Program, The University of Arizona, Tucson, Arizona, United States of America
- School of Animal & Comparative Biomedical Sciences, The University of Arizona, Tucson, Arizona, United States of America
- Department of Immunobiology, The University of Arizona, Tucson, Arizona, United States of America
- BIO5 Institute, The University of Arizona, Tucson, Arizona, United States of America
- Genetics Graduate Interdisciplinary Program, The University of Arizona, Tucson, Arizona, United States of America
| | - Samuel K. Campos
- Cancer Biology Graduate Interdisciplinary Program, The University of Arizona, Tucson, Arizona, United States of America
- Department of Immunobiology, The University of Arizona, Tucson, Arizona, United States of America
- BIO5 Institute, The University of Arizona, Tucson, Arizona, United States of America
- Department of Molecular & Cellular Biology, The University of Arizona, Tucson, Arizona, United States of America
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22
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Harwood MC, Dupzyk AJ, Inoue T, DiMaio D, Tsai B. p120 catenin recruits HPV to γ-secretase to promote virus infection. PLoS Pathog 2020; 16:e1008946. [PMID: 33085724 PMCID: PMC7577436 DOI: 10.1371/journal.ppat.1008946] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 08/28/2020] [Indexed: 12/29/2022] Open
Abstract
During internalization and trafficking, human papillomavirus (HPV) moves from the cell surface to the endosome where the transmembrane protease γ-secretase promotes insertion of the viral L2 capsid protein into the endosome membrane. Protrusion of L2 through the endosome membrane into the cytosol allows the recruitment of cytosolic host factors that target the virus to the Golgi en route for productive infection. How endosome-localized HPV is delivered to γ-secretase, a decisive infection step, is unclear. Here we demonstrate that cytosolic p120 catenin, likely via an unidentified transmembrane protein, interacts with HPV at early time-points during viral internalization and trafficking. In the endosome, p120 is not required for low pH-dependent disassembly of the HPV L1 capsid protein from the incoming virion. Rather, p120 is required for HPV to interact with γ-secretase-an interaction that ensures the virus is transported along a productive route. Our findings clarify an enigmatic HPV infection step and provide critical insights into HPV infection that may lead to new therapeutic strategies against HPV-induced diseases.
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Affiliation(s)
- Mara Calypso Harwood
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States of America
- Cellular and Molecular Biology Program, University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Allison Jade Dupzyk
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, United States of America
| | - Takamasa Inoue
- Pathogen Research Section, Central Research Laboratory, Research and Development Division, Japan Blood Products Organization, Kobe, Japan
| | - Daniel DiMaio
- Department of Genetics, Yale School of Medicine, New Haven, CT, United States of America
| | - Billy Tsai
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, United States of America
- * E-mail:
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23
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Mella C, Figueroa CD, Otth C, Ehrenfeld P. Involvement of Kallikrein-Related Peptidases in Nervous System Disorders. Front Cell Neurosci 2020; 14:166. [PMID: 32655372 PMCID: PMC7324807 DOI: 10.3389/fncel.2020.00166] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
Kallikrein-related peptidases (KLKs) are a family of serine proteases that when dysregulated may contribute to neuroinflammation and neurodegeneration. In the present review article, we describe what is known about their physiological and pathological roles with an emphasis on KLK6 and KLK8, two KLKs that are highly expressed in the adult central nervous system (CNS). Altered expression and activity of KLK6 have been linked to brain physiology and the development of multiple sclerosis. On the other hand, altered levels of KLK6 in the brain and serum of people affected by Alzheimer's disease and Parkinson's disease have been documented, pointing out to its function in amyloid metabolism and development of synucleinopathies. People who have structural genetic variants of KLK8 can suffer mental illnesses such as intellectual and learning disabilities, seizures, and autism. Increased expression of KLK8 has also been implicated in schizophrenia, bipolar disorder, and depression. Also, we discuss the possible link that exists between KLKs activity and certain viral infections that can affect the nervous system. Although little is known about the exact mechanisms that mediate KLKs function and their participation in neuroinflammatory and neurodegenerative disorders will open a new field to develop novel therapies to modulate their levels and/or activity and their harmful effects on the CNS.
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Affiliation(s)
- Cinthia Mella
- Faculty of Medicine, Institute of Clinical Microbiology, Universidad Austral de Chile, Valdivia, Chile
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Carlos D. Figueroa
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Carola Otth
- Faculty of Medicine, Institute of Clinical Microbiology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Pamela Ehrenfeld
- Laboratory of Cellular Pathology, Institute of Anatomy, Histology, and Pathology, Universidad Austral de Chile, Valdivia, Chile
- Center for Interdisciplinary Studies on the Nervous System (CISNe), Universidad Austral de Chile, Valdivia, Chile
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24
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Epidermal Growth Factor Receptor and Abl2 Kinase Regulate Distinct Steps of Human Papillomavirus 16 Endocytosis. J Virol 2020; 94:JVI.02143-19. [PMID: 32188731 DOI: 10.1128/jvi.02143-19] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/11/2020] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus 16 (HPV16), the leading cause of cervical cancer, exploits a novel endocytic pathway during host cell entry. This mechanism shares many requirements with macropinocytosis but differs in the mode of vesicle formation. Previous work indicated a role of the epidermal growth factor receptor (EGFR) in HPV16 endocytosis. However, the functional outcome of EGFR signaling and its downstream targets during HPV16 uptake are not well characterized. Here, we analyzed the functional importance of signal transduction via EGFR and its downstream effectors for endocytosis of HPV16. Our findings indicate two phases of EGFR signaling as follows: a-likely dispensable-transient activation with or shortly after cell binding and signaling required throughout the process of asynchronous internalization of HPV16. Interestingly, EGFR inhibition interfered with virus internalization and strongly reduced the number of endocytic pits, suggesting a role for EGFR signaling in the induction of HPV16 endocytosis. Moreover, we identified the Src-related kinase Abl2 as a novel regulator of virus uptake. Inhibition of Abl2 resulted in an accumulation of misshaped endocytic pits, indicating Abl2's importance for endocytic vesicle maturation. Since Abl2 rather than Src, a regulator of membrane ruffling during macropinocytosis, mediated downstream signaling of EGFR, we propose that the selective effector targeting downstream of EGFR determines whether HPV16 endocytosis or macropinocytosis is induced.IMPORTANCE Human papillomaviruses are small, nonenveloped DNA viruses that infect skin and mucosa. The so-called high-risk HPVs (e.g., HPV16, HPV18, HPV31) have transforming potential and are associated with various anogenital and oropharyngeal tumors. These viruses enter host cells by a novel endocytic pathway with unknown cellular function. To date, it is unclear how endocytic vesicle formation occurs mechanistically. Here, we addressed the role of epidermal growth factor receptor signaling, which has previously been implicated in HPV16 endocytosis and identified the kinase Abl2 as a novel regulator of virus uptake. Since other viruses, such as influenza A virus and lymphocytic choriomeningitis virus, possibly make use of related mechanisms, our findings shed light on fundamental strategies of virus entry and may in turn help to develop new host cell-targeted antiviral strategies.
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25
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Finke J, Mikuličić S, Loster AL, Gawlitza A, Florin L, Lang T. Anatomy of a viral entry platform differentially functionalized by integrins α3 and α6. Sci Rep 2020; 10:5356. [PMID: 32210347 PMCID: PMC7093462 DOI: 10.1038/s41598-020-62202-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/10/2020] [Indexed: 12/26/2022] Open
Abstract
During cell invasion, human papillomaviruses use large CD151 patches on the cell surface. Here, we studied whether these patches are defined architectures with features for virus binding and/or internalization. Super-resolution microscopy reveals that the patches are assemblies of closely associated nanoclusters of CD151, integrin α3 and integrin α6. Integrin α6 is required for virus attachment and integrin α3 for endocytosis. We propose that CD151 organizes viral entry platforms with different types of integrin clusters for different functionalities. Since numerous viruses use tetraspanin patches, we speculate that this building principle is a blueprint for cell-surface architectures utilized by viral particles.
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Affiliation(s)
- Jérôme Finke
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany
| | - Snježana Mikuličić
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Obere Zahlbacher Straße 67, 55131, Mainz, Germany
| | - Anna-Lena Loster
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Obere Zahlbacher Straße 67, 55131, Mainz, Germany
| | - Alexander Gawlitza
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Obere Zahlbacher Straße 67, 55131, Mainz, Germany
| | - Luise Florin
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Obere Zahlbacher Straße 67, 55131, Mainz, Germany
| | - Thorsten Lang
- Department of Membrane Biochemistry, Life & Medical Sciences (LIMES) Institute, University of Bonn, Carl-Troll-Straße 31, 53115, Bonn, Germany.
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26
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Soria-Martinez L, Bauer S, Giesler M, Schelhaas S, Materlik J, Janus K, Pierzyna P, Becker M, Snyder NL, Hartmann L, Schelhaas M. Prophylactic Antiviral Activity of Sulfated Glycomimetic Oligomers and Polymers. J Am Chem Soc 2020; 142:5252-5265. [PMID: 32105452 DOI: 10.1021/jacs.9b13484] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this work, we investigate the potential of highly sulfated synthetic glycomimetics to act as inhibitors of viral binding/infection. Our results indicate that both long-chain glycopolymers and short-chain glycooligomers are capable of preventing viral infection. Notably, glycopolymers efficiently inhibit Human Papillomavirus (HPV16) infection in vitro and maintain their antiviral activity in vivo, while the glycooligomers exert their inhibitory function post attachment of viruses to cells. Moreover, when we tested the potential for broader activity against several other human pathogenic viruses, we observed broad-spectrum antiviral activity of these compounds beyond our initial assumptions. While the compounds tested displayed a range of antiviral efficacies, viruses with rather diverse glycan specificities such as Herpes Simplex Virus (HSV), Influenza A Virus (IAV), and Merkel Cell Polyomavirus (MCPyV) could be targeted. This opens new opportunities to develop broadly active glycomimetic inhibitors of viral entry and infection.
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Affiliation(s)
- Laura Soria-Martinez
- Institute of Cellular Virology, ZMBE, University of Münster, Münster 48149, Germany.,Research Group "ViroCarb: glycans controlling non-enveloped virus infections" (FOR2327), Coordinating University of Tübingen, Tübingen 72074, Germany
| | - Sebastian Bauer
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Markus Giesler
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Sonja Schelhaas
- European Institute for Molecular Imaging, University of Münster, Münster 48149, Germany.,Cells in Motion Interfaculty Centre CiMIC, University of Münster, Münster 48149, Germany
| | - Jennifer Materlik
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Kevin Janus
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Patrick Pierzyna
- Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Miriam Becker
- Institute of Cellular Virology, ZMBE, University of Münster, Münster 48149, Germany.,Research Group "ViroCarb: glycans controlling non-enveloped virus infections" (FOR2327), Coordinating University of Tübingen, Tübingen 72074, Germany
| | - Nicole L Snyder
- Research Group "ViroCarb: glycans controlling non-enveloped virus infections" (FOR2327), Coordinating University of Tübingen, Tübingen 72074, Germany.,Department of Chemistry, Davidson College, Davidson, North Carolina 28035, United States
| | - Laura Hartmann
- Research Group "ViroCarb: glycans controlling non-enveloped virus infections" (FOR2327), Coordinating University of Tübingen, Tübingen 72074, Germany.,Institute of Organic Chemistry and Macromolecular Chemistry, Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany
| | - Mario Schelhaas
- Institute of Cellular Virology, ZMBE, University of Münster, Münster 48149, Germany.,Research Group "ViroCarb: glycans controlling non-enveloped virus infections" (FOR2327), Coordinating University of Tübingen, Tübingen 72074, Germany.,Cells in Motion Interfaculty Centre CiMIC, University of Münster, Münster 48149, Germany
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27
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Li S, Bronnimann MP, Williams SJ, Campos SK. Glutathione contributes to efficient post-Golgi trafficking of incoming HPV16 genome. PLoS One 2019; 14:e0225496. [PMID: 31743367 PMCID: PMC6863556 DOI: 10.1371/journal.pone.0225496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/06/2019] [Indexed: 12/22/2022] Open
Abstract
Human papillomavirus (HPV) is the most common sexually transmitted pathogen in the United States, causing 99% of cervical cancers and 5% of all human cancers worldwide. HPV infection requires transport of the viral genome (vDNA) into the nucleus of basal keratinocytes. During this process, minor capsid protein L2 facilitates subcellular retrograde trafficking of the vDNA from endosomes to the Golgi, and accumulation at host chromosomes during mitosis for nuclear retention and localization during interphase. Here we investigated the relationship between cellular glutathione (GSH) and HPV16 infection. siRNA knockdown of GSH biosynthetic enzymes results in a partial decrease of HPV16 infection. Likewise, infection of HPV16 in GSH depleted keratinocytes is inefficient, an effect that was not seen with adenoviral vectors. Analysis of trafficking revealed no defects in cellular binding, entry, furin cleavage of L2, or retrograde trafficking of HPV16, but GSH depletion hindered post-Golgi trafficking and translocation, decreasing nuclear accumulation of vDNA. Although precise mechanisms have yet to be defined, this work suggests that GSH is required for a specific post-Golgi trafficking step in HPV16 infection.
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Affiliation(s)
- Shuaizhi Li
- Department of Immunobiology, University of Arizona, Tucson, AZ, United States of America
| | - Matthew P. Bronnimann
- Department of Immunobiology, University of Arizona, Tucson, AZ, United States of America
| | - Spencer J. Williams
- Department of Molecular & Cellular Biology, University of Arizona, Tucson, AZ, United States of America
| | - Samuel K. Campos
- Department of Immunobiology, University of Arizona, Tucson, AZ, United States of America
- Department of Molecular & Cellular Biology, University of Arizona, Tucson, AZ, United States of America
- Cancer Biology Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ, United States of America
- BIO5 Institute, University of Arizona, Tucson, AZ, United States of America
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28
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Cagno V, Tseligka ED, Jones ST, Tapparel C. Heparan Sulfate Proteoglycans and Viral Attachment: True Receptors or Adaptation Bias? Viruses 2019; 11:v11070596. [PMID: 31266258 PMCID: PMC6669472 DOI: 10.3390/v11070596] [Citation(s) in RCA: 232] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 12/12/2022] Open
Abstract
Heparan sulfate proteoglycans (HSPG) are composed of unbranched, negatively charged heparan sulfate (HS) polysaccharides attached to a variety of cell surface or extracellular matrix proteins. Widely expressed, they mediate many biological activities, including angiogenesis, blood coagulation, developmental processes, and cell homeostasis. HSPG are highly sulfated and broadly used by a range of pathogens, especially viruses, to attach to the cell surface.
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Affiliation(s)
- Valeria Cagno
- Department of Microbiology and Molecular Medicine, University of Geneva Medical School, 1205 Geneva, Switzerland.
| | - Eirini D Tseligka
- Department of Microbiology and Molecular Medicine, University of Geneva Medical School, 1205 Geneva, Switzerland
| | - Samuel T Jones
- School of Materials, University of Manchester, Manchester, M13 9PL, UK
| | - Caroline Tapparel
- Department of Microbiology and Molecular Medicine, University of Geneva Medical School, 1205 Geneva, Switzerland
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29
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Mikuličić S, Finke J, Boukhallouk F, Wüstenhagen E, Sons D, Homsi Y, Reiss K, Lang T, Florin L. ADAM17-dependent signaling is required for oncogenic human papillomavirus entry platform assembly. eLife 2019; 8:44345. [PMID: 31107240 PMCID: PMC6557631 DOI: 10.7554/elife.44345] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 05/17/2019] [Indexed: 01/23/2023] Open
Abstract
Oncogenic human papillomaviruses (HPV) are small DNA viruses that infect keratinocytes. After HPV binding to cell surface receptors, a cascade of molecular interactions mediates the infectious cellular internalization of virus particles. Aside from the virus itself, important molecular players involved in virus entry include the tetraspanin CD151 and the epidermal growth factor receptor (EGFR). To date, it is unknown how these components are coordinated in space and time. Here, we studied plasma membrane dynamics of CD151 and EGFR and the HPV16 capsid during the early phase of infection. We find that the proteinase ADAM17 activates the extracellular signal-regulated kinases (ERK1/2) pathway by the shedding of growth factors which triggers the formation of an endocytic entry platform. Infectious endocytic entry platforms carrying virus particles consist of two-fold larger CD151 domains containing the EGFR. Our finding clearly dissects initial virus binding from ADAM17-dependent assembly of a HPV/CD151/EGFR entry platform.
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Affiliation(s)
- Snježana Mikuličić
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Jérôme Finke
- Department of Membrane Biochemistry, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Fatima Boukhallouk
- Institute for Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Elena Wüstenhagen
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Dominik Sons
- Department of Membrane Biochemistry, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Yahya Homsi
- Department of Membrane Biochemistry, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Karina Reiss
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Thorsten Lang
- Department of Membrane Biochemistry, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
| | - Luise Florin
- Institute for Virology and Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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30
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Abstract
Sialic acid-based glycoconjugates cover the surfaces of many different cell types, defining key properties of the cell surface such as overall charge or likely interaction partners. Because of this prominence, sialic acids play prominent roles in mediating attachment and entry to viruses belonging to many different families. In this review, we first describe how interactions between viruses and sialic acid-based glycan structures can be identified and characterized using a range of techniques. We then highlight interactions between sialic acids and virus capsid proteins in four different viruses, and discuss what these interactions have taught us about sialic acid engagement and opportunities to interfere with binding.
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Affiliation(s)
- Bärbel S Blaum
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany; Vanderbilt University School of Medicine, Nashville, TN, United States
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31
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Taylor JR, Fernandez DJ, Thornton SM, Skeate JG, Lühen KP, Da Silva DM, Langen R, Kast WM. Heterotetrameric annexin A2/S100A10 (A2t) is essential for oncogenic human papillomavirus trafficking and capsid disassembly, and protects virions from lysosomal degradation. Sci Rep 2018; 8:11642. [PMID: 30076379 PMCID: PMC6076308 DOI: 10.1038/s41598-018-30051-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/23/2018] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus (HPV) entry into epithelial cells is independent of canonical endocytic pathways. Upon interaction with host cells, HPV establishes infection by traversing through an endocytic pathway that is clathrin- and caveolin-independent, but dependent on the annexin A2/S100A10 heterotetramer (A2t). We examined the contribution of monomeric annexin A2 (AnxA2) vs. A2t in HPV infection and endocytosis, and further characterized the role of these molecules in protein trafficking. We specifically show that cell surface A2t is not required for HPV attachment, and in the absence of A2t virion internalization remains clathrin-independent. Without A2t, viral progression from early endosomes to multivesicular endosomes is significantly inhibited, capsid uncoating is dramatically reduced, and lysosomal degradation of HPV is accelerated. Furthermore, we present evidence that AnxA2 forms a complex with CD63, a known mediator of HPV trafficking. Overall, the observed reduction in infection is less significant in the absence of S100A10 alone compared to full A2t, supporting an independent role for monomeric AnxA2. More broadly, we show that successful infection by multiple oncogenic HPV types is dependent on A2t. These findings suggest that A2t is a central mediator of high-risk HPV intracellular trafficking post-entry and pre-viral uncoating.
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Affiliation(s)
- Julia R Taylor
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA, USA
| | - Daniel J Fernandez
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA, USA
| | - Shantaé M Thornton
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA, USA
| | - Joseph G Skeate
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA, USA
| | - Kim P Lühen
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
| | - Diane M Da Silva
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA, USA
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
| | - Ralf Langen
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, CA, USA
| | - W Martin Kast
- Department of Molecular Microbiology & Immunology, University of Southern California, Los Angeles, CA, USA.
- Department of Obstetrics & Gynecology, University of Southern California, Los Angeles, CA, USA.
- Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA.
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