151
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Cheng X, He Y, Bao W, Zhang Z, Chen L, Song G, Lan J, Xu F, Jia C, Dai T. Transcriptomic analysis of mRNA expression in giant congenital melanocytic nevi. Gene 2022; 850:146894. [PMID: 36174903 DOI: 10.1016/j.gene.2022.146894] [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: 03/31/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND OBJECTIVE GCMN is a sporadic disease with an incidence ranging from 1/20,000 to 1/500000. So far, several studies have found that GCMN is related to somatic mutations, but most of them have focused on known pathogenic genes, and transcriptome sequencing based on large datasets is relatively uncommon. At present, the use of next-generation sequencing technologies and bioinformatics platforms makes genomic information study more comprehensive and efficient. In this study, the transcriptome differences between GCMN lesions and surrounding normal skin tissues were investigated using high-throughput transcriptome sequencing, and hub genes and pathways related to pathogenesis were identified, providing a theoretical foundation for further research into the pathogenesis of GCMN. METHODS Pathological skin tissue and surrounding normal skin tissue from GCMN patients, namely the pathological group (PG) and the control group (CG), were obtained. 1. All specimens were stained with HE to ensure that the samples met the experimental requirements. 2. Ten pairs of specimens were selected for high-throughput transcriptome sequencing, and the differentially expressed genes (DEGs) between the PG and the CG were obtained. The DEGs were analyzed by clusterProfiler R software for Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The function of the subnetwork was analyzed and the hub genes were identified by the STRING database and Cytoscape software. 3. The expression differences of hub genes PTGS2, EGF, and SOX10 in pathological skin tissues and normal skin tissues were verified by qRT-PCR and immunofluorescence staining. RESULTS 1. HE staining revealed a lot of melanocytes in the dermis and subcutaneous tissues. They were found around the hair follicles, sweat glands, sebaceous glands, and blood vessel walls, or in a specific pattern. 2. The screening threshold was set at p<0.01 and |log2fc|<1, and a total of 1163 DEGs were discovered between the PG and CG, with 519 genes up-regulated and 644 genes down-regulated in the pathological tissues. According to the GO functional analysis, 29 biological processes, 18 cell compositions, and 17 molecular functions were significantly enriched, with the majority of them being related to keratinocytes and the extracellular matrix. There were 779 nodes and 2359 interactions in the protein interaction network. Using the MCODE plug-in, the network was divided into 25 functional clusters. According to ClueGO results, Cluster5 was involved in melanin biosynthesis and melanocyte proliferation. Using 11 operation methods in the Cytohubba plug-in, PTGS2, EGF, and SOX10 in Cluster5 were chosen as hub genes. 3. qRT-PCR and immunofluorescent staining revealed that compared to normal skin tissue, the expression of SOX10 was significantly up-regulated, and the expression of PTGS2 and EGF was significantly down-regulated in pathological skin tissue(P<0.001). CONCLUSIONS In GCMN, keratinocytes and extracellular matrix may directly and indirectly affect melanocyte activity. PTGS2, EGF, and SOX10 are important genes and significantly differentially expressed in pathological and normal skin tissues. These findings may serve as a springboard for future research.
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Affiliation(s)
- Xialin Cheng
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Yan He
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Wu Bao
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Zexin Zhang
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Lingxi Chen
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Ge Song
- Department of General Surgery, The First Affiliated Hospital of Henan University of Science and Technology 24 Jinghua Road, Jianxi District, Luoyang city, Henan Province.
| | - Junhong Lan
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Fangfang Xu
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Chiyu Jia
- Department of Burns and Plastic Surgery, Xiang'an Hospital of Xiamen University, Xiamen, China, 2000 East Xiang 'an Road, Xiang 'an District, Xiamen city, China.
| | - Tao Dai
- Department of Plastic Surgery, the Third Affiliated Hospital, Henan University of Science and Technology, Luoyang, China 36 Xiyuan Road, Jianxi District, Luoyang city, Henan Province.
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152
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Ren Z, Yuan JY, Zhang J, Tan Y, Chen WQ, Zhang ZT, Li YZ. Genetic analysis of seven pateints with Hereditary Multiple Osteochondromas (HMO). Am J Transl Res 2022; 14:6303-6312. [PMID: 36247276 PMCID: PMC9556467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/03/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND HMO (Hereditary Multiple Osteochondroma), an uncommon autosomal dominant disorder, is characterized by the development of multiple osteochondromas, which are nonmalignant cartilage-capped bone tumors growing outwards from long bone metaphyses. METHODS The present work retrospectively analyzed seven children with HMO who were enrolled for routine clinical diagnosis and treatment, including X-ray examination. Subsequent genetic detection was carried out using whole exome sequencing (WES). In addition, this work applied Sanger sequencing to be the validation approach. Moreover, this work also examined amino acid (AA) evolutionary conservatism under the influence of certain missense variants. RESULTS The clinical indications of all seven patients and their family members were thoroughly indexed. WES identified diagnostic variants in the EXT1 or EXT2 gene in these patients. In these variants, four were reported for the first time, namely EXT1: c.1285-2A>T, EXT2: c.1139delT, EXT1: c.203G>A, and EXT1: c.1645_1673del. Familial validation revealed that three of the variants were hereditary, while the other four were de novo, which was consistent with the phenotype in each case. CONCLUSION Our results expanded HMO variation spectrum, and laid certain foundations for the precise counseling of those affected families.
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Affiliation(s)
- Zhuo Ren
- Department of Obstetrics and Gynecology, Peking University International HospitalBeijing 102206, China
| | - Jia-Yu Yuan
- Department of Pediatric Orthopaedics, The Third Hospital of Hebei Medical UniversityShijiazhuang 050051, Hebei, China
| | - Jing Zhang
- Prenatal Diagnosis Center, Shijiazhuang Obstetrics and Gynecology HospitalShijiazhuang 050051, Hebei, China
- Key Laboratory of Maternal and Fetal Medicine of Hebei ProvinceShijiazhuang 050051, Hebei, China
| | - Ya Tan
- Department of Obstetrics and Gynecology, Peking University International HospitalBeijing 102206, China
| | - Wen-Qi Chen
- Prenatal Diagnosis Center, Shijiazhuang Obstetrics and Gynecology HospitalShijiazhuang 050051, Hebei, China
- Key Laboratory of Maternal and Fetal Medicine of Hebei ProvinceShijiazhuang 050051, Hebei, China
| | - Zhen-Tao Zhang
- Pain Department, The People’s Hospital of LangfangLangfang 065000, Hebei, China
| | - Ya-Zhou Li
- Department of Pediatric Orthopaedics, The Third Hospital of Hebei Medical UniversityShijiazhuang 050051, Hebei, China
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153
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GPC1 Is Associated with Poor Prognosis and Treg Infiltration in Colon Adenocarcinoma. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:8209700. [PMID: 36158119 PMCID: PMC9492339 DOI: 10.1155/2022/8209700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/08/2022] [Indexed: 12/24/2022]
Abstract
Glypican-1 (GPC1) is a glycosylated protein recognized as a promising biomarker for cancer. Nonetheless, there have been few systematic studies on GPC1 in colon adenocarcinoma (COAD). We conducted bioinformatic analysis based on The Cancer Genome Atlas (TCGA) and used clinical samples to verify that GPC1 is overexpressed in colon adenocarcinoma. Kaplan-Meier analysis showed that higher GPC1 expression was associated with poor overall survival (OS). The Cox regression model further showed that GPC1 expression is an independent negative prognostic factor for COAD. Gene set enrichment analysis demonstrated that multiple oncogenic signaling pathways were differentially enriched in GPC1 high- versus low-expressing COAD tumors, including DNA methylation, G2/M damage checkpoint, and telomere dysfunction. We observed a positive correlation between GPC1 expression and immune cell infiltration, such as regulatory T cells (Tregs), macrophages, and mast cells, and immunohistochemistry of 50 COAD tissues revealed that GPC1 expression was positively associated with Treg enrichment. Our results provide a promising candidate gene to predict the prognosis of COAD and new insights into tumor immunity. Further research is required to validate these results.
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154
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Yuan F, Yang Y, Zhou H, Quan J, Liu C, Wang Y, Zhang Y, Yu X. Heparanase in cancer progression: Structure, substrate recognition and therapeutic potential. Front Chem 2022; 10:926353. [PMID: 36157032 PMCID: PMC9500389 DOI: 10.3389/fchem.2022.926353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/22/2022] [Indexed: 12/03/2022] Open
Abstract
Heparanase, a member of the carbohydrate-active enzyme (CAZy) GH79 family, is an endo-β-glucuronidase capable of degrading the carbohydrate moiety of heparan sulphate proteoglycans, thus modulating and facilitating remodeling of the extracellular matrix. Heparanase activity is strongly associated with major human pathological complications, including but not limited to tumour progress, angiogenesis and inflammation, which make heparanase a valuable therapeutic target. Long-due crystallographic structures of human and bacterial heparanases have been recently determined. Though the overall architecture of human heparanase is generally comparable to that of bacterial glucuronidases, remarkable differences exist in their substrate recognition mode. Better understanding of regulatory mechanisms of heparanase in substrate recognition would provide novel insight into the anti-heparanase inhibitor development as well as potential clinical applications.
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Affiliation(s)
| | | | | | | | | | | | | | - Xing Yu
- *Correspondence: Yujing Zhang, ; Xing Yu,
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155
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Munz CM, Kreher H, Erdbeer A, Richter S, Westphal D, Yi B, Behrendt R, Stanke N, Lindel F, Lindemann D. Efficient production of inhibitor-free foamy virus glycoprotein-containing retroviral vectors by proteoglycan-deficient packaging cells. Mol Ther Methods Clin Dev 2022; 26:394-412. [PMID: 36034773 PMCID: PMC9388887 DOI: 10.1016/j.omtm.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 07/07/2022] [Indexed: 11/21/2022]
Abstract
Foamy viruses (FVs) or heterologous retroviruses pseudotyped with FV glycoprotein enable transduction of a great variety of target tissues of disparate species. Specific cellular entry receptors responsible for this exceptionally broad tropism await their identification. Though, ubiquitously expressed heparan sulfate proteoglycan (HS-PG) is known to serve as an attachment factor of FV envelope (Env)-containing virus particles, greatly enhancing target cell permissiveness. Production of high-titer, FV Env-containing retroviral vectors is strongly dependent on the use of cationic polymer-based transfection reagents like polyethyleneimine (PEI). We identified packaging cell-surface HS-PG expression to be responsible for this requirement. Efficient release of FV Env-containing virus particles necessitates neutralization of HS-PG binding sites by PEI. Remarkably, remnants of PEI in FV Env-containing vector supernatants, which are not easily removable, negatively impact target cell transduction, in particular those of myeloid and lymphoid origin. To overcome this limitation for production of FV Env-containing retrovirus supernatants, we generated 293T-based packaging cell lines devoid of HS-PG by genome engineering. This enabled, for the first, time production of inhibitor-free, high-titer FV Env-containing virus supernatants by non-cationic polymer-mediated transfection. Depending on the type of virus, produced titers were 2- to 10-fold higher compared with those obtained by PEI transfection.
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Affiliation(s)
- Clara Marie Munz
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Henriette Kreher
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Alexander Erdbeer
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Stefanie Richter
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, 01307 Dresden, Germany
| | - Dana Westphal
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Buqing Yi
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
| | - Rayk Behrendt
- Institute of Immunology, Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, 01307 Dresden, Germany
| | - Nicole Stanke
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, 01307 Dresden, Germany
| | - Fabian Lindel
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
- Corresponding author Fabian Lindel,Cell line Screening & Development (CLSD), Novartis Institutes for BioMedical Research (NIBR), WSJ-360, Kohlenstrasse, 4056 Basel, Switzerland.
| | - Dirk Lindemann
- Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, 01307 Dresden, Germany
- Corresponding author Dirk Lindemann, Institute of Medical Microbiology and Virology, University Hospital and Medical Faculty “Carl Gustav Carus”, Technische Universität Dresden, Fetscherstr. 74, 01307 Dresden, Germany.
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156
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Field CJ, Perez AM, Samet T, Ricles V, Iovine MK, Lowe-Krentz LJ. Involvement of transmembrane protein 184a during angiogenesis in zebrafish embryos. Front Physiol 2022; 13:845407. [PMID: 36117693 PMCID: PMC9478037 DOI: 10.3389/fphys.2022.845407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
Angiogenesis, the outgrowth of new blood vessels from existing vasculature, is critical during development, tissue formation, and wound healing. In response to vascular endothelial growth factors (VEGFs), endothelial cells are activated to proliferate and move towards the signal, extending the vessel. These events are directed by VEGF-VEGF receptor (Vegfr2) signal transduction, which in turn is modulated by heparan sulfate proteoglycans (HSPGs). HSPGs are glycoproteins covalently attached to HS glycosaminoglycan chains. Transmembrane protein 184a (Tmem184a) has been recently identified as a heparin receptor, which is believed to bind heparan sulfate chains in vivo. Therefore, Tmem184a has the potential to fine-tune interactions between VEGF and HS, modulating Vegfr2-dependent angiogenesis. The function of Tmem184a has been investigated in the regenerating zebrafish caudal fin, but its role has yet to be evaluated during developmental angiogenesis. Here we provide insights into how Tmem184a contributes to the proper formation of the vasculature in zebrafish embryos. First, we find that knockdown of Tmem184a causes a reduction in the number of intact intersegmental vessels (ISVs) in the zebrafish embryo. This phenotype mimics that of vegfr2b knockout mutants, which have previously been shown to exhibit severe defects in ISV development. We then test the importance of HS interactions by removing the binding domain within the Tmem184a protein, which has a negative effect on angiogenesis. Tmem184a is found to act synergistically with Vegfr2b, indicating that the two gene products function in a common pathway to modulate angiogenesis. Moreover, we find that knockdown of Tmem184a leads to an increase in endothelial cell proliferation but a decrease in the amount of VE-cadherin present. Together, these findings suggest that Tmem184a is necessary for ISVs to organize into mature, complete vessels.
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157
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Odfalk KF, Bieniek KF, Hopp SC. Microglia: Friend and foe in tauopathy. Prog Neurobiol 2022; 216:102306. [PMID: 35714860 PMCID: PMC9378545 DOI: 10.1016/j.pneurobio.2022.102306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 04/24/2022] [Accepted: 06/10/2022] [Indexed: 12/16/2022]
Abstract
Aggregation of misfolded microtubule associated protein tau into abnormal intracellular inclusions defines a class of neurodegenerative diseases known as tauopathies. The consistent spatiotemporal progression of tau pathology in Alzheimer's disease (AD) led to the hypothesis that tau aggregates spread in the brain via bioactive tau "seeds" underlying advancing disease course. Recent studies implicate microglia, the resident immune cells of the central nervous system, in both negative and positive regulation of tau pathology. Polymorphisms in genes that alter microglial function are associated with the development of AD and other tauopathies. Experimental manipulation of microglia function can alter tau pathology and microglia-mediated neuroinflammatory cascades can exacerbate tau pathology. Microglia also exert protective functions by mitigating tau spread: microglia internalize tau seeds and have the capacity to degrade them. However, when microglia fail to degrade these tau seeds there are deleterious consequences, including secretion of exosomes containing tau that can spread to neurons. This review explores the intersection of microglia and tau from the perspective of neuropathology, neuroimaging, genetics, transcriptomics, and molecular biology. As tau-targeted therapies such as anti-tau antibodies advance through clinical trials, it is critical to understand the interaction between tau and microglia.
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Affiliation(s)
- Kristian F Odfalk
- Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, University of Texas Health Science Center San Antonio, San Antonio, TX, USA; Department of Pharmacology, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
| | - Kevin F Bieniek
- Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, University of Texas Health Science Center San Antonio, San Antonio, TX, USA; Department of Pathology and Laboratory Medicine, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
| | - Sarah C Hopp
- Glenn Biggs Institute for Alzheimer's and Neurodegenerative Diseases, University of Texas Health Science Center San Antonio, San Antonio, TX, USA; Department of Pharmacology, University of Texas Health Science Center San Antonio, San Antonio, TX, USA.
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158
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Yang L, Yue W, Zhang H, Gao Y, Yang L, Li L. The role of roof plate-specific spondins in liver homeostasis and disease. LIVER RESEARCH 2022. [DOI: 10.1016/j.livres.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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159
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Lo MW, Amarilla AA, Lee JD, Albornoz EA, Modhiran N, Clark RJ, Ferro V, Chhabra M, Khromykh AA, Watterson D, Woodruff TM. SARS-CoV-2 triggers complement activation through interactions with heparan sulfate. Clin Transl Immunology 2022; 11:e1413. [PMID: 35999893 PMCID: PMC9387400 DOI: 10.1002/cti2.1413] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/26/2022] [Accepted: 08/08/2022] [Indexed: 12/30/2022] Open
Abstract
Objectives To determine whether SARS‐CoV‐2 can trigger complement activation, the pathways that are involved and the functional significance of the resultant effect. Methods SARS‐CoV‐2 was inoculated into a human lepirudin‐anticoagulated whole blood model, which contains a full repertoire of complement factors and leukocytes that express complement receptors. Complement activation was determined by measuring C5a production with an ELISA, and pretreatment with specific inhibitors was used to identify the pathways involved. The functional significance of this was then assessed by measuring markers of C5a signalling including leukocyte C5aR1 internalisation and CD11b upregulation with flow cytometry. Results SARS‐CoV‐2 inoculation in this whole blood model caused progressive C5a production over 24 h, which was significantly reduced by inhibitors for factor B, C3, C5 and heparan sulfate. However, this phenomenon could not be replicated in cell‐free plasma, highlighting the requirement for cell surface interactions with heparan sulfate. Functional analysis of this phenomenon revealed that C5aR1 signalling and CD11b upregulation in granulocytes and monocytes was delayed and only occurred after 24 h. Conclusion SARS‐CoV‐2 is a noncanonical alternative pathway activator that progressively triggers complement activation through interactions with heparan sulfate.
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Affiliation(s)
- Martin W Lo
- School of Biomedical Sciences, Faculty of Medicine University of Queensland Brisbane QLD Australia
| | - Alberto A Amarilla
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia
| | - John D Lee
- School of Biomedical Sciences, Faculty of Medicine University of Queensland Brisbane QLD Australia
| | - Eduardo A Albornoz
- School of Biomedical Sciences, Faculty of Medicine University of Queensland Brisbane QLD Australia
| | - Naphak Modhiran
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia
| | - Richard J Clark
- School of Biomedical Sciences, Faculty of Medicine University of Queensland Brisbane QLD Australia
| | - Vito Ferro
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia.,Australian Infectious Diseases Research Centre Global Virus Network Centre of Excellence Brisbane QLD Australia
| | - Mohit Chhabra
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia
| | - Alexander A Khromykh
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia.,Australian Infectious Diseases Research Centre Global Virus Network Centre of Excellence Brisbane QLD Australia
| | - Daniel Watterson
- School of Chemistry and Molecular Biosciences University of Queensland Brisbane QLD Australia.,Australian Infectious Diseases Research Centre Global Virus Network Centre of Excellence Brisbane QLD Australia
| | - Trent M Woodruff
- School of Biomedical Sciences, Faculty of Medicine University of Queensland Brisbane QLD Australia.,Australian Infectious Diseases Research Centre Global Virus Network Centre of Excellence Brisbane QLD Australia
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160
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Foote CA, Soares RN, Ramirez-Perez FI, Ghiarone T, Aroor A, Manrique-Acevedo C, Padilla J, Martinez-Lemus LA. Endothelial Glycocalyx. Compr Physiol 2022; 12:3781-3811. [PMID: 35997082 PMCID: PMC10214841 DOI: 10.1002/cphy.c210029] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The glycocalyx is a polysaccharide structure that protrudes from the body of a cell. It is primarily conformed of glycoproteins and proteoglycans, which provide communication, electrostatic charge, ionic buffering, permeability, and mechanosensation-mechanotransduction capabilities to cells. In blood vessels, the endothelial glycocalyx that projects into the vascular lumen separates the vascular wall from the circulating blood. Such a physical location allows a number of its components, including sialic acid, glypican-1, heparan sulfate, and hyaluronan, to participate in the mechanosensation-mechanotransduction of blood flow-dependent shear stress, which results in the synthesis of nitric oxide and flow-mediated vasodilation. The endothelial glycocalyx also participates in the regulation of vascular permeability and the modulation of inflammatory responses, including the processes of leukocyte rolling and extravasation. Its structural architecture and negative charge work to prevent macromolecules greater than approximately 70 kDa and cationic molecules from binding and flowing out of the vasculature. This also prevents the extravasation of pathogens such as bacteria and virus, as well as that of tumor cells. Due to its constant exposure to shear and circulating enzymes such as neuraminidase, heparanase, hyaluronidase, and matrix metalloproteinases, the endothelial glycocalyx is in a continuous process of degradation and renovation. A balance favoring degradation is associated with a variety of pathologies including atherosclerosis, hypertension, vascular aging, metastatic cancer, and diabetic vasculopathies. Consequently, ongoing research efforts are focused on deciphering the mechanisms that promote glycocalyx degradation or limit its syntheses, as well as on therapeutic approaches to improve glycocalyx integrity with the goal of reducing vascular disease. © 2022 American Physiological Society. Compr Physiol 12: 1-31, 2022.
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Affiliation(s)
- Christopher A. Foote
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Rogerio N. Soares
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | | | - Thaysa Ghiarone
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
| | - Annayya Aroor
- Department of Medicine, University of Missouri, Columbia, MO, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO, USA
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Medicine, University of Missouri, Columbia, MO, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO, USA
| | - Jaume Padilla
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Luis A. Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
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161
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Broad-spectrum antiviral diazadispiroalkane core molecules block attachment and cell-to-cell spread of herpesviruses. Antiviral Res 2022; 206:105402. [PMID: 36007600 DOI: 10.1016/j.antiviral.2022.105402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 12/19/2022]
Abstract
Regarding the problems with the current available drugs many research studies deal with the class of the dispirotripiperazine (DSTP)-based compounds. These are small molecules consisting of polycyclic saturated ring systems with positively charged nitrogen atoms. These compounds can interact with negatively charged HSPGs and thus block viral attachment. In a previous paper by Adfeldt et al. (2021), we have shown that the diazadispiroalkane derivatives 11826091 and 11826236 exhibit dose-dependent antiviral activity against human cytomegalovirus (HCMV) and pseudorabies virus (PrV). In the present study, these two small molecules are evaluated against two other herpesvirus species, murine cytomegalovirus (MCMV) and herpes simplex virus type 1 (HSV-1), as well as a HCMV clinical isolate. They exhibit potent antiherpetic activity against these herpesviruses with a high selectivity index. The low cytotoxicity was underlined by the LD50 determination in mice. We have shown that inhibition occurs at an early stage of infection. Interestingly, 11826091 and 11826236 reduced immediate early gene expression in HCMV and HSV-1 infected cells in a dose-dependent manner. Both small molecules probably interact electrostatically with sulfated glycosaminoglycans (GAGs) of proteoglycans on target cells resulting in blockage of adsorption sites for herpesvirus glycoprotein. Moreover, both compounds showed significant effects against the cell-associated viral spread of HSV-1 and HCMV. Overall, this study shows that 11826091 and 11826236 represent two promising candidates for a new approach of a broad antiviral therapy.
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Abstract
Cancer growth is accompanied by changes to the extracellular environment of tumors, which aids the proliferation and spread of cancer cells. Cancer-associated extracellular matrix changes include excessive degradation of heparan sulfate carbohydrates, promoting metastatic spread by multiple mechanisms. Heparanase is the main human enzyme responsible for extracellular heparan sulfate breakdown and strongly drives metastasis when overexpressed. Few effective heparanase inhibitors are known, and the most effective molecules to date possess nondrug-like structures with multiple off-target effects. We have carried out structure-guided development of heparanase inhibitors, which covalently bind to the enzyme active site to cause irreversible inhibition. These inhibitors are heparanase specific and reduce metastasis in animal models with comparable efficacy to current “best-in-class” compounds. Heparan sulfate proteoglycans (HSPGs) mediate essential interactions throughout the extracellular matrix (ECM), providing signals that regulate cellular growth and development. Altered HSPG composition during tumorigenesis strongly aids cancer progression. Heparanase (HPSE) is the principal enzyme responsible for extracellular heparan sulfate catabolism and is markedly up-regulated in aggressive cancers. HPSE overactivity degrades HSPGs within the ECM, facilitating metastatic dissemination and releasing mitogens that drive cellular proliferation. Reducing extracellular HPSE activity reduces cancer growth, but few effective inhibitors are known, and none are clinically approved. Inspired by the natural glycosidase inhibitor cyclophellitol, we developed nanomolar mechanism-based, irreversible HPSE inhibitors that are effective within physiological environments. Application of cyclophellitol-derived HPSE inhibitors reduces cancer aggression in cellulo and significantly ameliorates murine metastasis. Mechanism-based irreversible HPSE inhibition is an unexplored anticancer strategy. We demonstrate the feasibility of such compounds to control pathological HPSE-driven malignancies.
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163
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Luis AS, Baslé A, Byrne DP, Wright GSA, London JA, Jin C, Karlsson NG, Hansson GC, Eyers PA, Czjzek M, Barbeyron T, Yates EA, Martens EC, Cartmell A. Sulfated glycan recognition by carbohydrate sulfatases of the human gut microbiota. Nat Chem Biol 2022; 18:841-849. [PMID: 35710619 PMCID: PMC7613211 DOI: 10.1038/s41589-022-01039-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 04/14/2022] [Indexed: 12/31/2022]
Abstract
Sulfated glycans are ubiquitous nutrient sources for microbial communities that have coevolved with eukaryotic hosts. Bacteria metabolize sulfated glycans by deploying carbohydrate sulfatases that remove sulfate esters. Despite the biological importance of sulfatases, the mechanisms underlying their ability to recognize their glycan substrate remain poorly understood. Here, we use structural biology to determine how sulfatases from the human gut microbiota recognize sulfated glycans. We reveal seven new carbohydrate sulfatase structures spanning four S1 sulfatase subfamilies. Structures of S1_16 and S1_46 represent novel structures of these subfamilies. Structures of S1_11 and S1_15 demonstrate how non-conserved regions of the protein drive specificity toward related but distinct glycan targets. Collectively, these data reveal that carbohydrate sulfatases are highly selective for the glycan component of their substrate. These data provide new approaches for probing sulfated glycan metabolism while revealing the roles carbohydrate sulfatases play in host glycan catabolism.
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Affiliation(s)
- Ana S Luis
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA.
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Gothenburg, Sweden.
| | - Arnaud Baslé
- Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle upon Tyne, UK
| | - Dominic P Byrne
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Gareth S A Wright
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - James A London
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Chunsheng Jin
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Gothenburg, Sweden
| | - Niclas G Karlsson
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Gothenburg, Sweden
- Faculty of Health Sciences, Department of Life Sciences and Health, Pharmacy, Oslo Metropolitan University, Oslo, Norway
| | - Gunnar C Hansson
- Department of Medical Biochemistry and Cell Biology, University of Gothenburg, Gothenburg, Sweden
| | - Patrick A Eyers
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Mirjam Czjzek
- Sorbonne Université, Univ Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS, Roscoff, France
| | - Tristan Barbeyron
- Sorbonne Université, Univ Paris 06, CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS, Roscoff, France
| | - Edwin A Yates
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Eric C Martens
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Alan Cartmell
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK.
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164
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Impaired mitophagy in Sanfilippo a mice causes hypertriglyceridemia and brown adipose tissue activation. J Biol Chem 2022; 298:102159. [PMID: 35750212 PMCID: PMC9364035 DOI: 10.1016/j.jbc.2022.102159] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 11/25/2022] Open
Abstract
Lysosomal storage diseases result in various developmental and physiological complications, including cachexia. To study the causes for the negative energy balance associated with cachexia, we assessed the impact of sulfamidase deficiency and heparan sulfate storage on energy homeostasis and metabolism in a mouse model of type IIIa mucopolysaccharidosis (MPS IIIa, Sanfilippo A syndrome). At 12-weeks of age, MPS IIIa mice exhibited fasting and postprandial hypertriglyceridemia compared with wildtype mice, with a reduction of white and brown adipose tissues. Partitioning of dietary [3H]triolein showed a marked increase in intestinal uptake and secretion, whereas hepatic production and clearance of triglyceride-rich lipoproteins did not differ from wildtype controls. Uptake of dietary triolein was also elevated in brown adipose tissue (BAT), and notable increases in beige adipose tissue occurred, resulting in hyperthermia, hyperphagia, hyperdipsia, and increased energy expenditure. Furthermore, fasted MPS IIIa mice remained hyperthermic when subjected to low temperature but became cachexic and profoundly hypothermic when treated with a lipolytic inhibitor. We demonstrated that the reliance on increased lipid fueling of BAT was driven by a reduced ability to generate energy from stored lipids within the depot. These alterations arose from impaired autophagosome-lysosome fusion, resulting in increased mitochondria content in beige and BAT. Finally, we show that increased mitochondria content in BAT and postprandial dyslipidemia was partially reversed upon 5-week treatment with recombinant sulfamidase. We hypothesize that increased BAT activity and persistent increases in energy demand in MPS IIIa mice contribute to the negative energy balance observed in patients with MPS IIIa.
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165
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Giblin MJ, Ontko CD, Penn JS. Effect of cytokine-induced alterations in extracellular matrix composition on diabetic retinopathy-relevant endothelial cell behaviors. Sci Rep 2022; 12:12955. [PMID: 35902594 PMCID: PMC9334268 DOI: 10.1038/s41598-022-12683-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 05/10/2022] [Indexed: 12/15/2022] Open
Abstract
Retinal vascular basement membrane (BM) thickening is an early structural abnormality of diabetic retinopathy (DR). Recent studies suggest that BM thickening contributes to the DR pathological cascade; however, much remains to be elucidated about the exact mechanisms by which BM thickening develops and subsequently drives other pathogenic events in DR. Therefore, we undertook a systematic analysis to understand how human retinal microvascular endothelial cells (hRMEC) and human retinal pericytes (hRP) change their expression of key extracellular matrix (ECM) constituents when treated with diabetes-relevant stimuli designed to model the three major insults of the diabetic environment: hyperglycemia, dyslipidemia, and inflammation. TNFα and IL-1β caused the most potent and consistent changes in ECM expression in both hRMEC and hRP. We also demonstrate that conditioned media from IL-1β-treated human Müller cells caused dose-dependent, significant increases in collagen IV and agrin expression in hRMEC. After narrowing our focus to inflammation-induced changes, we sought to understand how ECM deposited by hRMEC and hRP under inflammatory conditions affects the behavior of naïve hRMEC. Our data demonstrated that diabetes-relevant alterations in ECM composition alone cause both increased adhesion molecule expression by and increased peripheral blood mononuclear cell (PBMC) adhesion to naïve hRMEC. Taken together, these data demonstrate novel roles for inflammation and pericytes in driving BM pathology and suggest that inflammation-induced ECM alterations may advance other pathogenic behaviors in DR, including leukostasis.
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Affiliation(s)
- Meredith J. Giblin
- grid.152326.10000 0001 2264 7217Department of Cell and Developmental Biology, Vanderbilt University, Nashville, USA
| | - Cayla D. Ontko
- grid.152326.10000 0001 2264 7217Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, USA
| | - John S. Penn
- grid.152326.10000 0001 2264 7217Department of Cell and Developmental Biology, Vanderbilt University, Nashville, USA ,grid.152326.10000 0001 2264 7217Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, USA ,grid.412807.80000 0004 1936 9916Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, Nashville, USA
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166
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Kines RC, Schiller JT. Harnessing Human Papillomavirus’ Natural Tropism to Target Tumors. Viruses 2022; 14:v14081656. [PMID: 36016277 PMCID: PMC9413966 DOI: 10.3390/v14081656] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/25/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023] Open
Abstract
Human papillomaviruses (HPV) are small non-enveloped DNA tumor viruses established as the primary etiological agent for the development of cervical cancer. Decades of research have elucidated HPV’s primary attachment factor to be heparan sulfate proteoglycans (HSPG). Importantly, wounding and exposure of the epithelial basement membrane was found to be pivotal for efficient attachment and infection of HPV in vivo. Sulfation patterns on HSPG’s become modified at the site of wounds as they serve an important role promoting tissue healing, cell proliferation and neovascularization and it is these modifications recognized by HPV. Analogous HSPG modification patterns can be found on tumor cells as they too require the aforementioned processes to grow and metastasize. Although targeting tumor associated HSPG is not a novel concept, the use of HPV to target and treat tumors has only been realized in recent years. The work herein describes how decades of basic HPV research has culminated in the rational design of an HPV-based virus-like infrared light activated dye conjugate for the treatment of choroidal melanoma.
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Affiliation(s)
| | - John T. Schiller
- Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892, USA;
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167
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The Choice of Anticoagulant Influences the Characteristics of Bone Marrow Aspirate Concentrate and Mesenchymal Stem Cell Bioactivity In Vitro. Stem Cells Int 2022; 2022:8259888. [PMID: 35910535 PMCID: PMC9337942 DOI: 10.1155/2022/8259888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 11/28/2022] Open
Abstract
Bone marrow aspirate concentrate (BMC) is commonly used as a therapeutic agent to resolve orthopedic injuries, using its unique cellularity to reduce inflammation and prime the region for repair. The aspiration of the bone marrow is performed using either sodium citrate (SC) or heparin sodium (HS) as an anticoagulant and processed via centrifugation to concentrate the cellular constituents. To date, the consideration of the impact of the two commonly used anticoagulants on the mesenchymal stem/stromal cell (MSC) population has been overlooked. The current study assesses the differences in the BMCs produced using 15% SC and HS at 1,000 U/mL or 100 U/mL final v./v. as an anticoagulant using in vitro metrics including total nucleated cell counts (TNC) and viability, the ability for mesenchymal stromal/stem cells (MSCs) to establish colony-forming units with fibroblast morphology (CFU-f), and cytokine expression profile of the MSC cultures. Our findings demonstrate that HS-derived BMC cultures result in higher CFU-f formation and CFU-f frequency at both concentrations assessed compared to SC-derived BMC cultures. In addition, there were significant differences in 27% (7 of 26) of the cytokines quantified in HS-derived BMC cultures compared to SC-derived BMC cultures with implications for MSC plasticity and self-renewal.
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168
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Veider F, Akkuş-Dağdeviren ZB, Knoll P, Bernkop-Schnürch A. Design of nanostructured lipid carriers and solid lipid nanoparticles for enhanced cellular uptake. Int J Pharm 2022; 624:122014. [PMID: 35850184 DOI: 10.1016/j.ijpharm.2022.122014] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/27/2022]
Abstract
In this study PEG-free and zeta potential changing lipid-based nanocarriers providing enhanced cellular uptake were developed. Nanostructured lipid carriers (NLC), consisting of paraffin wax, caprylic/ capric triglyceride, cetyltrimethylammoniumchloride and either soy lecithin or polyglycerol-4 laurate and solid lipid nanoparticles (SLN) with the same composition but without the liquid lipid content were developed. All formulations exposed a positive surface charge and were then coated with the polyphosphate Graham's salt. Phosphate release from these formulations was evaluated by incubation with intestinal alkaline phosphatase as well as on a Caco-2 monolayer and zeta potentials were measured. Additionally, cellular uptake studies were performed. Within 5 h, a remarkable amount of phosphate was released from all formulations incubated with intestinal alkaline phosphatase. Enzymatically induced phosphate release with intestinal alkaline phosphatase led to a zeta potential shift up to Δ 26 mV. Results of phosphate release and zeta potential change were confirmed on Caco-2 cells. Cellular uptake studies on Caco-2 cells showed an up to 5.6-times higher uptake compared to cells with inhibited phosphatase. According to these results, polyphosphate coating is a powerful tool to obtain lipid-based nanocarriers for enhanced cellular uptake.
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Affiliation(s)
- Florina Veider
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Zeynep Burcu Akkuş-Dağdeviren
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Patrick Knoll
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Andreas Bernkop-Schnürch
- Center for Chemistry and Biomedicine, Department of Pharmaceutical Technology, Institute of Pharmacy, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria.
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169
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Hudák A, Morgan G, Bacovsky J, Patai R, Polgár TF, Letoha A, Pettko-Szandtner A, Vizler C, Szilák L, Letoha T. Biodistribution and Cellular Internalization of Inactivated SARS-CoV-2 in Wild-Type Mice. Int J Mol Sci 2022; 23:ijms23147609. [PMID: 35886958 PMCID: PMC9316427 DOI: 10.3390/ijms23147609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/04/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Despite the growing list of identified SARS-CoV-2 receptors, the human angiotensin-converting enzyme 2 (ACE2) is still viewed as the main cell entry receptor mediating SARS-CoV-2 internalization. It has been reported that wild-type mice, like other rodent species of the Muridae family, cannot be infected with SARS-CoV-2 due to differences in their ACE2 receptors. On the other hand, the consensus heparin-binding motif of SARS-CoV-2’s spike protein, PRRAR, enables the attachment to rodent heparan sulfate proteoglycans (HSPGs), including syndecans, a transmembrane HSPG family with a well-established role in clathrin- and caveolin-independent endocytosis. As mammalian syndecans possess a relatively conserved structure, we analyzed the cellular uptake of inactivated SARS-CoV-2 particles in in vitro and in vivo mice models. Cellular studies revealed efficient uptake into murine cell lines with established syndecan-4 expression. After intravenous administration, inactivated SARS-CoV-2 was taken up by several organs in vivo and could also be detected in the brain. Internalized by various tissues, inactivated SARS-CoV-2 raised tissue TNF-α levels, especially in the heart, reflecting the onset of inflammation. Our studies on in vitro and in vivo mice models thus shed light on unknown details of SARS-CoV-2 internalization and help broaden the understanding of the molecular interactions of SARS-CoV-2.
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Affiliation(s)
- Anett Hudák
- Pharmacoidea Ltd., H-6726 Szeged, Hungary; (A.H.); (L.S.)
| | | | | | - Roland Patai
- Institute of Biophysics, Biological Research Centre, H-6726 Szeged, Hungary; (R.P.); (T.F.P.)
| | - Tamás F. Polgár
- Institute of Biophysics, Biological Research Centre, H-6726 Szeged, Hungary; (R.P.); (T.F.P.)
- Theoretical Medicine Doctoral School, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary
| | - Annamária Letoha
- Department of Medicine, Albert Szent-Györgyi Clinical Center, Faculty of Medicine, University of Szeged, H-6720 Szeged, Hungary;
| | | | - Csaba Vizler
- Institute of Biochemistry, Biological Research Centre, H-6726 Szeged, Hungary;
| | - László Szilák
- Pharmacoidea Ltd., H-6726 Szeged, Hungary; (A.H.); (L.S.)
| | - Tamás Letoha
- Pharmacoidea Ltd., H-6726 Szeged, Hungary; (A.H.); (L.S.)
- Correspondence: ; Tel.: +36-30-2577393
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170
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Singh VK, Misra R, Almo SC, Steidl UG, Bülow HE, Zheng D. HSMotifDiscover: identification of motifs in sequences composed of non-single-letter elements. Bioinformatics 2022; 38:4036-4038. [PMID: 35771633 PMCID: PMC9364371 DOI: 10.1093/bioinformatics/btac437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/24/2022] [Accepted: 06/28/2022] [Indexed: 01/14/2023] Open
Abstract
SUMMARY The functional sub-string(s) of a biopolymer sequence defines the specificity of its interaction with other biomolecules and is often referred to as motifs. Computational algorithms and software have been broadly developed for finding such motifs in sequences in which the individual elements are single characters, such as those in DNA and protein sequences. However, there are more complex scenarios where the motifs exist in non-single-letter contexts, e.g. preferred patterns of chemical modifications on proteins, DNAs, RNAs or polysaccharides. To search for those motifs, we describe a new method that converts the modified sequence elements to representative single-letter codes and then uses a modified Gibbs-sampling algorithm to define the position specific scoring matrix representing the motif(s). As a proof of principle, we describe the implementation and application of an R package for discovering heparan sulfate (HS) motifs in glycan sequences, which are important in regulating protein-protein interactions. This software can be valuable for analyzing high-throughput glycoprotein binding data using microarrays with HS oligosaccharides or other biological polymers. AVAILABILITY AND IMPLEMENTATION HSMotifDiscover is freely available as an open source R package released under an MIT license at https://github.com/bioinfoDZ/HSMotifDiscover and also available in the form of an app at https://hsmotifdiscover.shinyapps.io/HSMotifDiscover_ShinyApp/. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Vinod Kumar Singh
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Rohan Misra
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Steven C Almo
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Ulrich G Steidl
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Hannes E Bülow
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY 10461, USA,Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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171
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Lin Y, Lian L, Zhu Y, Wang L, Li H, Zheng Y, Cai Q, He W, Xie H, Wei Y, Wang H, Xie H, Zhang J. Characterization and expression analysis of the glycosyltransferase 64 familyin rice (Oryza sativa). Gene 2022; 838:146708. [PMID: 35772655 DOI: 10.1016/j.gene.2022.146708] [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: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/24/2022] [Indexed: 11/04/2022]
Abstract
The glycosyltransferase 64 (GT64) family is widely conserved in many species, including animals and plants. The functions of GT64 family genes in animals have been well characterized in the biosynthesis of extracellular heparan sulfate, whereas two GT64 members in Arabidopsis thaliana are involved in the glycosylation of plasma membrane glycosylinositol phosphorylceramides (GIPCs). GIPCs are the main components of plant sphingolipids and serve as important signal molecules in various developmental processes and stress responses. Rice (Oryza sativa), a model monocot plant, contains four GT64 members in its genome. Using phylogenetic analysis, 73 GT64s from 19 plant species were divided into three main groups. Each group can be represented by the three members in Arabidopsis and show a trend of monocot-eudicot divergences. A promoter and genomic variation analysis of GT64s in rice showed that various stress-related regulatory elements exist in their promoters, and many sequence variations were found between the two main rice subspecies, japonica and indica. Additionally, the transmembrane domain and subcellular localization analyses revealed that these genes all encode membrane-bound glycosyltransferases and localize to the Golgi apparatus. Finally, expression analysis of the four GT64 genes in rice, as assessed by real-time quantitative PCR, showed that they have distinct tissue-specific expression patterns and respond to different hormone treatments or abiotic stresses. Our results indicated that this family of genes may play a role in different stress responses and hormone signaling pathways in rice, and therefore provides fundamental information for the further investigation of their function in rice.
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Affiliation(s)
- Yuelong Lin
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Ling Lian
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yongsheng Zhu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Lanling Wang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Hong Li
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yanmei Zheng
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Qiuhua Cai
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Wei He
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Hongguang Xie
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yidong Wei
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Hai Wang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Huaan Xie
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China.
| | - Jianfu Zhang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South-China Research Base of State Key Laboratory of Hybrid Rice/Incubating base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/ Key Laboratory of Hybrid Rice Germplasm innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China /Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China.
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172
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Rodrigues AAN, Lopes-Santos L, Lacerda PA, Juste MF, Mariz BA, Cajazeiro DC, Giacobbe V, Borges R, Casarim A, Callegari GDS, Claret Arcadipane FAM, Aprahamian I, Salo TA, De Oliveira CE, Coletta RD, Augusto TM, Cervigne NK. Heparanase 1 Upregulation Promotes Tumor Progression and Is a Predictor of Low Survival for Oral Cancer. Front Cell Dev Biol 2022; 10:742213. [DOI: 10.3389/fcell.2022.742213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Oral cavity cancer is still an important public health problem throughout the world. Oral squamous cell carcinomas (OSCCs) can be quite aggressive and metastatic, with a low survival rate and poor prognosis. However, this is usually related to the clinical stage and histological grade, and molecular prognostic markers for clinical practice are yet to be defined. Heparanase (HPSE1) is an endoglycosidase associated with extracellular matrix remodeling, and although involved in several malignancies, the clinical implications of HPSE1 expression in OSCCs are still unknown.Methods: We sought to investigate HPSE1 expression in a series of primary OSCCs and further explore whether its overexpression plays a relevant role in OSCC tumorigenesis. mRNA and protein expression analyses were performed in OSCC tissue samples and cell lines. A loss-of-function strategy using shRNA and a gain-of-function strategy using an ORF vector targeting HPSE1 were employed to investigate the endogenous modulation of HPSE1 and its effects on proliferation, apoptosis, adhesion, epithelial–mesenchymal transition (EMT), angiogenesis, migration, and invasion of oral cancer in vitro.Results: We demonstrated that HPSE1 is frequently upregulated in OSCC samples and cell lines and is an unfavorable prognostic indicator of disease-specific survival when combined with advanced pT stages. Moreover, abrogation of HPSE1 in OSCC cells significantly promoted apoptosis and inhibited proliferation, migration, invasion, and epithelial–mesenchymal transition by significantly decreasing the expression of N-cadherin and vimentin. Furthermore, a conditioned medium of HPSE1-downregulated cells resulted in reduced vascular endothelial growth.Conclusion: Our results confirm the overexpression of HPSE1 in OSCCs, suggest that HPSE1 expression correlates with disease progression as it is associated with several important biological processes for oral tumorigenesis, and can be managed as a prognostic marker for patients with OSCC.
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173
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The Role of Heparan Sulfate in CCL26-Induced Eosinophil Chemotaxis. Int J Mol Sci 2022; 23:ijms23126519. [PMID: 35742962 PMCID: PMC9224159 DOI: 10.3390/ijms23126519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 11/26/2022] Open
Abstract
Proinflammatory chemokine ligand 26 (CCL26, eotaxin-3) mediates transendothelial cell migration of eosinophils by binding and activating the G-protein-coupled (GPC) chemokine receptor 3 on the surface of eosinophilic cells. Here we have investigated the role of glycosaminoglycans (GAGs) as potential co-receptors in the process of CCL26-induced eosinophil chemotaxis. For this purpose, we have first identified the GAG-binding site of CCL26 by a site-directed mutagenesis approach in the form of an alanine screening. A panel of GAG-binding-deficient mutants has been designed, generated, and analyzed with respect to their binding affinities to heparan sulphate (HS) by isothermal fluorescence titration studies. This showed that basic amino acids in the α-helical part of CCL26 are strongly involved in GAG-binding. In chemotaxis experiments, we found that decreased GAG-binding affinity correlated with decreased chemotactic activity, which indicates an involvement of GAGs in eosinophil migration. This was further proven by the negative impact of heparinase III treatment and, independently, by the incubation of eosinophils with an anti heparan sulfate antibody. We finally investigated eosinophils’ proteoglycan (PG) expression patterns by real-time PCR, which revealed the highest expression level for serglycin. Including an anti-serglycin antibody in CCL26-induced eosinophil migration experiments reduced the chemotaxis of these immune cells, thereby proving the dependence of eosinophil mobilization on the proteoglycan serglycin.
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174
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Wilson LFL, Dendooven T, Hardwick SW, Echevarría-Poza A, Tryfona T, Krogh KBRM, Chirgadze DY, Luisi BF, Logan DT, Mani K, Dupree P. The structure of EXTL3 helps to explain the different roles of bi-domain exostosins in heparan sulfate synthesis. Nat Commun 2022; 13:3314. [PMID: 35676258 PMCID: PMC9178029 DOI: 10.1038/s41467-022-31048-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 05/31/2022] [Indexed: 11/08/2022] Open
Abstract
Heparan sulfate is a highly modified O-linked glycan that performs diverse physiological roles in animal tissues. Though quickly modified, it is initially synthesised as a polysaccharide of alternating β-D-glucuronosyl and N-acetyl-α-D-glucosaminyl residues by exostosins. These enzymes generally possess two glycosyltransferase domains (GT47 and GT64)-each thought to add one type of monosaccharide unit to the backbone. Although previous structures of murine exostosin-like 2 (EXTL2) provide insight into the GT64 domain, the rest of the bi-domain architecture is yet to be characterised; hence, how the two domains co-operate is unknown. Here, we report the structure of human exostosin-like 3 (EXTL3) in apo and UDP-bound forms. We explain the ineffectiveness of EXTL3's GT47 domain to transfer β-D-glucuronosyl units, and we observe that, in general, the bi-domain architecture would preclude a processive mechanism of backbone extension. We therefore propose that heparan sulfate backbone polymerisation occurs by a simple dissociative mechanism.
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Affiliation(s)
- L F L Wilson
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, UK
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA, 22903, USA
| | - T Dendooven
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK
| | - S W Hardwick
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
| | - A Echevarría-Poza
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, UK
| | - T Tryfona
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, UK
| | - K B R M Krogh
- Department of Protein Biochemistry and Stability, Novozymes A/S, Krogshøjvej 36, 2880, Bagsværd, Denmark
| | - D Y Chirgadze
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
| | - B F Luisi
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1GA, UK
| | - D T Logan
- Biochemistry and Structural Biology, Centre for Molecular Protein Science, Department of Chemistry, Lund University, SE-221 00, Lund, Sweden
| | - K Mani
- Department of Experimental Medical Science, Division of Neuroscience, Glycobiology Group, Lund University, SE-221 00, Lund, Sweden.
| | - P Dupree
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, UK.
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175
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Wang Y, Liu X, Obser T, Bauer AT, Heyes M, Starzonek S, Zulal M, Opitz K, Ott L, Riethdorf S, Lange T, Pantel K, Bendas G, Schneider SW, Kusche-Gullberg M, Gorzelanny C. Heparan sulfate dependent binding of plasmatic von Willebrand factor to blood circulating melanoma cells attenuates metastasis. Matrix Biol 2022; 111:76-94. [PMID: 35690300 DOI: 10.1016/j.matbio.2022.06.002] [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: 01/13/2022] [Revised: 04/28/2022] [Accepted: 06/07/2022] [Indexed: 11/29/2022]
Abstract
Heparan sulfate (HS), a highly negatively charged glycosaminoglycan, is ubiquitously present in all tissues and also exposed on the surface of mammalian cells. A plethora of molecules such as growth factors, cytokines or coagulation factors bear HS binding sites. Accordingly, HS controls the communication of cells with their environment and therefore numerous physiological and pathophysiological processes such as cell adhesion, migration, and cancer cell metastasis. In the present work, we found that HS exposed by blood circulating melanoma cells recruited considerable amounts of plasmatic von Willebrand factor (vWF) to the cellular surface. Analyses assisted by super-resolution microscopy indicated that HS and vWF formed a tight molecular complex. Enzymatic removal of HS or genetic engineering of the HS biosynthesis showed that a reduced length of the HS chains or complete lack of HS was associated with significantly reduced vWF encapsulation. In microfluidic experiments, mimicking a tumor-activated vascular system, we found that vWF-HS complexes prevented vascular adhesion. In line with this, single molecular force spectroscopy suggested that the vWF-HS complex promoted the repulsion of circulating cancer cells from the blood vessel wall to counteract metastasis. Experiments in wild type and vWF knockout mice confirmed that the HS-vWF complex at the melanoma cell surface attenuated hematogenous metastasis, whereas melanoma cells lacking HS evade the anti-metastatic recognition by vWF. Analysis of tissue samples obtained from melanoma patients validated that metastatic melanoma cells produce less HS. Transcriptome data further suggest that attenuated expression of HS-related genes correlate with metastases and reduced patients' survival. In conclusion, we showed that HS-mediated binding of plasmatic vWF to the cellular surface can reduce the hematogenous spread of melanoma. Cancer cells with low HS levels evade vWF recognition and are thus prone to form metastases. Therefore, therapeutic expansion of the cancer cell exposed HS may prevent tumor progression.
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Affiliation(s)
- Yuanyuan Wang
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany; Medical Faculty Mannheim, University of Heidelberg, Department of Dermatology, 68167, Mannheim, Germany
| | - Xiaobo Liu
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | - Tobias Obser
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | - Alexander T Bauer
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | - Martin Heyes
- Rheinische Friedrich Wilhelms University Bonn, Department of Pharmacy, 53113, Bonn, Germany
| | - Sarah Starzonek
- University Medical Center Hamburg-Eppendorf, Institute of Anatomy and Experimental Morphology, 20246, Hamburg, Germany
| | - Mina Zulal
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | - Karena Opitz
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | - Leonie Ott
- University Medical Center Hamburg-Eppendorf, Department of Tumor Biology, 20246, Hamburg, Germany
| | - Sabine Riethdorf
- University Medical Center Hamburg-Eppendorf, Department of Tumor Biology, 20246, Hamburg, Germany
| | - Tobias Lange
- University Medical Center Hamburg-Eppendorf, Institute of Anatomy and Experimental Morphology, 20246, Hamburg, Germany
| | - Klaus Pantel
- University Medical Center Hamburg-Eppendorf, Department of Tumor Biology, 20246, Hamburg, Germany
| | - Gerd Bendas
- Rheinische Friedrich Wilhelms University Bonn, Department of Pharmacy, 53113, Bonn, Germany
| | - Stefan W Schneider
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany
| | | | - Christian Gorzelanny
- University Medical Center Hamburg-Eppendorf, Department of Dermatology and Venereology, 20246 Hamburg, Germany.
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176
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Fawcett JW, Kwok JCF. Proteoglycan Sulphation in the Function of the Mature Central Nervous System. Front Integr Neurosci 2022; 16:895493. [PMID: 35712345 PMCID: PMC9195417 DOI: 10.3389/fnint.2022.895493] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Chondroitin sulphate and heparan sulphate proteoglycans (CSPGS and HSPGs) are found throughout the central nervous system (CNS). CSPGs are ubiquitous in the diffuse extracellular matrix (ECM) between cells and are a major component of perineuronal nets (PNNs), the condensed ECM present around some neurons. HSPGs are more associated with the surface of neurons and glia, with synapses and in the PNNs. Both CSPGs and HSPGs consist of a protein core to which are attached repeating disaccharide chains modified by sulphation at various positions. The sequence of sulphation gives the chains a unique structure and local charge density. These sulphation codes govern the binding properties and biological effects of the proteoglycans. CSPGs are sulphated along their length, the main forms being 6- and 4-sulphated. In general, the chondroitin 4-sulphates are inhibitory to cell attachment and migration, while chondroitin 6-sulphates are more permissive. HSPGs tend to be sulphated in isolated motifs with un-sulphated regions in between. The sulphation patterns of HS motifs and of CS glycan chains govern their binding to the PTPsigma receptor and binding of many effector molecules to the proteoglycans, such as growth factors, morphogens, and molecules involved in neurodegenerative disease. Sulphation patterns change as a result of injury, inflammation and ageing. For CSPGs, attention has focussed on PNNs and their role in the control of plasticity and memory, and on the soluble CSPGs upregulated in glial scar tissue that can inhibit axon regeneration. HSPGs have key roles in development, regulating cell migration and axon growth. In the adult CNS, they have been associated with tau aggregation and amyloid-beta processing, synaptogenesis, growth factor signalling and as a component of the stem cell niche. These functions of CSPGs and HSPGs are strongly influenced by the pattern of sulphation of the glycan chains, the sulphation code. This review focuses on these sulphation patterns and their effects on the function of the mature CNS.
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Affiliation(s)
- James W. Fawcett
- Department of Clinical Neurosciences, John van Geest Centre for Brain Repair, University of Cambridge, Cambridge, United Kingdom
- Centre for Reconstructive Neuroscience, Institute for Experimental Medicine Czech Academy of Science (CAS), Prague, Czechia
- *Correspondence: James W. Fawcett,
| | - Jessica C. F. Kwok
- Centre for Reconstructive Neuroscience, Institute for Experimental Medicine Czech Academy of Science (CAS), Prague, Czechia
- Faculty of Biological Sciences, School of Biomedical Sciences, University of Leeds, Leeds, United Kingdom
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177
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Siddiqui N, Oshima K, Hippensteel JA. Proteoglycans and Glycosaminoglycans in Central Nervous System Injury. Am J Physiol Cell Physiol 2022; 323:C46-C55. [PMID: 35613357 PMCID: PMC9273265 DOI: 10.1152/ajpcell.00053.2022] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The brain and spinal cord constitute the central nervous system (CNS), which when injured, can be exceedingly devastating. The mechanistic roles of proteoglycans (PGs) and their glycosaminoglycan (GAG) side chains in such injuries have been extensively studied. CNS injury immediately alters endothelial and extracellular matrix (ECM) PGs and GAGs. Subsequently, these alterations contribute to acute injury, post-injury fibrosis, and post-injury repair. These effects are central to the pathophysiology of CNS injury. This review focuses on the importance of PGs and GAGs in multiple forms of injury including traumatic brain injury, spinal cord injury, and stroke. We highlight the causes and consequences of degradation of the PG and GAG-enriched endothelial glycocalyx in early injury and discuss the pleiotropic roles of PGs in neuroinflammation. We subsequently evaluate the dualistic effects of PGs on recovery: both PG/GAG-mediated inhibition and facilitation of repair. We then report promising therapeutic strategies that may prove effective for repair of CNS injury including PG receptor inhibition, delivery of endogenous, pro-repair PGs and GAGs, and direct degradation of pathologic GAGs. Last, we discuss importance of two PG- and GAG-containing ECM structures (synapses and perineuronal nets) in CNS injury and recovery.
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Affiliation(s)
- Noah Siddiqui
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Kaori Oshima
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Joseph A Hippensteel
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
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178
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Fielding CA, Sabberwal P, Williamson JC, Greenwood EJD, Crozier TWM, Zelek W, Seow J, Graham C, Huettner I, Edgeworth JD, Price DA, Morgan PB, Ladell K, Eberl M, Humphreys IR, Merrick B, Doores K, Wilson SJ, Lehner PJ, Wang ECY, Stanton RJ. SARS-CoV-2 host-shutoff impacts innate NK cell functions, but antibody-dependent NK activity is strongly activated through non-spike antibodies. eLife 2022; 11:e74489. [PMID: 35587364 PMCID: PMC9239683 DOI: 10.7554/elife.74489] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 05/17/2022] [Indexed: 12/15/2022] Open
Abstract
The outcome of infection is dependent on the ability of viruses to manipulate the infected cell to evade immunity, and the ability of the immune response to overcome this evasion. Understanding this process is key to understanding pathogenesis, genetic risk factors, and both natural and vaccine-induced immunity. SARS-CoV-2 antagonises the innate interferon response, but whether it manipulates innate cellular immunity is unclear. An unbiased proteomic analysis determined how cell surface protein expression is altered on SARS-CoV-2-infected lung epithelial cells, showing downregulation of activating NK ligands B7-H6, MICA, ULBP2, and Nectin1, with minimal effects on MHC-I. This occurred at the level of protein synthesis, could be mediated by Nsp1 and Nsp14, and correlated with a reduction in NK cell activation. This identifies a novel mechanism by which SARS-CoV-2 host-shutoff antagonises innate immunity. Later in the disease process, strong antibody-dependent NK cell activation (ADNKA) developed. These responses were sustained for at least 6 months in most patients, and led to high levels of pro-inflammatory cytokine production. Depletion of spike-specific antibodies confirmed their dominant role in neutralisation, but these antibodies played only a minor role in ADNKA compared to antibodies to other proteins, including ORF3a, Membrane, and Nucleocapsid. In contrast, ADNKA induced following vaccination was focussed solely on spike, was weaker than ADNKA following natural infection, and was not boosted by the second dose. These insights have important implications for understanding disease progression, vaccine efficacy, and vaccine design.
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Affiliation(s)
- Ceri Alan Fielding
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Pragati Sabberwal
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - James C Williamson
- Cambridge Institute for Therapeutic Immunology & Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of CambridgeCambridgeUnited Kingdom
| | - Edward JD Greenwood
- Cambridge Institute for Therapeutic Immunology & Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of CambridgeCambridgeUnited Kingdom
| | - Thomas WM Crozier
- Cambridge Institute for Therapeutic Immunology & Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of CambridgeCambridgeUnited Kingdom
| | - Wioleta Zelek
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Jeffrey Seow
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
| | - Carl Graham
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
| | - Isabella Huettner
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
| | - Jonathan D Edgeworth
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
- Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation TrustLondonUnited Kingdom
| | - David A Price
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Paul B Morgan
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Kristin Ladell
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Matthias Eberl
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Ian R Humphreys
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Blair Merrick
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
- Department of Infectious Diseases, Guy’s and St Thomas’ NHS Foundation TrustLondonUnited Kingdom
| | - Katie Doores
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College LondonLondonUnited Kingdom
| | - Sam J Wilson
- MRC - University of Glasgow Centre for Virus ResearchGlasgowUnited Kingdom
| | - Paul J Lehner
- Cambridge Institute for Therapeutic Immunology & Infectious Disease, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of CambridgeCambridgeUnited Kingdom
| | - Eddie CY Wang
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
| | - Richard J Stanton
- Division of Infection and Immunity, School of Medicine, Cardiff UniversityCardiffUnited Kingdom
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179
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D’Amato M, Vertui V, Pandolfi L, Bozzini S, Fossali T, Colombo R, Aliberti A, Fumagalli M, Iadarola P, Didò C, Viglio S, Meloni F. Investigating the Link between Alpha-1 Antitrypsin and Human Neutrophil Elastase in Bronchoalveolar Lavage Fluid of COVID-19 Patients. Curr Issues Mol Biol 2022; 44:2122-2138. [PMID: 35678672 PMCID: PMC9164061 DOI: 10.3390/cimb44050143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/04/2022] [Accepted: 05/08/2022] [Indexed: 11/26/2022] Open
Abstract
Neutrophils play a pathogenic role in COVID-19 by releasing Neutrophils Extracellular Traps (NETs) or human neutrophil elastase (HNE). Given that HNE is inhibited by α1-antitrypsin (AAT), we aimed to assess the content of HNE, α1-antitrypsin (AAT) and HNE-AAT complexes (the AAT/HNE balance) in 33 bronchoalveolar lavage fluid (BALf) samples from COVID-19 patients. These samples were submitted for Gel-Electrophoresis, Western Blot and ELISA, and proteins (bound to AAT or HNE) were identified by Liquid Chromatography-Mass Spectrometry. NETs' release was analyzed by confocal microscopy. Both HNE and AAT were clearly detectable in BALf at high levels. Contrary to what was previously observed in other settings, the formation of HNE-AAT complex was not detected in COVID-19. Rather, HNE was found to be bound to acute phase proteins, histones and C3. Due to the relevant role of NETs, we assessed the ability of free AAT to bind to histones. While confirming this binding, AAT was not able to inhibit NET formation. In conclusion, despite the finding of a high burden of free and bound HNE, the lack of the HNE-AAT inhibitory complex in COVID-19 BALf demonstrates that AAT is not able to block HNE activity. Furthermore, while binding to histones, AAT does not prevent NET formation nor their noxious activity.
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Affiliation(s)
- Maura D’Amato
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy;
| | - Valentina Vertui
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, 27100 Pavia, Italy; (V.V.); (L.P.); (C.D.); (F.M.)
| | - Laura Pandolfi
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, 27100 Pavia, Italy; (V.V.); (L.P.); (C.D.); (F.M.)
| | - Sara Bozzini
- Laboratory of Respiratory Disease, Cell Biology Section, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Tommaso Fossali
- Department of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, 20121 Milan, Italy; (T.F.); (R.C.)
| | - Riccardo Colombo
- Department of Anesthesiology and Intensive Care, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, University of Milan, 20121 Milan, Italy; (T.F.); (R.C.)
| | - Anna Aliberti
- Division of Anesthesiology and Intensive Care 1, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Marco Fumagalli
- Department of Biology and Biotechnologies “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (M.F.); (P.I.)
| | - Paolo Iadarola
- Department of Biology and Biotechnologies “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (M.F.); (P.I.)
| | - Camilla Didò
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, 27100 Pavia, Italy; (V.V.); (L.P.); (C.D.); (F.M.)
| | - Simona Viglio
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy;
| | - Federica Meloni
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, 27100 Pavia, Italy; (V.V.); (L.P.); (C.D.); (F.M.)
- Transplant Unit, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
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180
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Pardridge WM. Blood-brain barrier delivery for lysosomal storage disorders with IgG-lysosomal enzyme fusion proteins. Adv Drug Deliv Rev 2022; 184:114234. [PMID: 35307484 DOI: 10.1016/j.addr.2022.114234] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 02/25/2022] [Accepted: 03/14/2022] [Indexed: 12/12/2022]
Abstract
The majority of lysosomal storage diseases affect the brain. Treatment of the brain with intravenous enzyme replacement therapy is not successful, because the recombinant lysosomal enzymes do not cross the blood-brain barrier (BBB). Biologic drugs, including lysosomal enzymes, can be re-engineered for BBB delivery as IgG-enzyme fusion proteins. The IgG domain of the fusion protein is a monoclonal antibody directed against an endogenous receptor-mediated transporter at the BBB, such as the insulin receptor or the transferrin receptor. This receptor transports the IgG across the BBB, in parallel with the endogenous receptor ligand, and the IgG acts as a molecular Trojan horse to ferry into brain the lysosomal enzyme genetically fused to the IgG. The IgG-enzyme fusion protein is bi-functional and retains both high affinity binding for the BBB receptor, and high lysosomal enzyme activity. IgG-lysosomal enzymes are presently in clinical trials for treatment of the brain in Mucopolysaccharidosis.
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181
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Basu A, Patel NG, Nicholson ED, Weiss RJ. Spatiotemporal diversity and regulation of glycosaminoglycans in cell homeostasis and human disease. Am J Physiol Cell Physiol 2022; 322:C849-C864. [PMID: 35294848 PMCID: PMC9037703 DOI: 10.1152/ajpcell.00085.2022] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Glycosaminoglycans (GAGs) are long, linear polysaccharides that are ubiquitously expressed on the cell surface and in the extracellular matrix of all animal cells. These complex carbohydrates play important roles in many cellular processes and have been implicated in many disease states, including cancer, inflammation, and genetic disorders. GAGs are among the most complex molecules in biology with enormous information content and extensive structural and functional heterogeneity. GAG biosynthesis is a nontemplate-driven process facilitated by a large group of biosynthetic enzymes that have been extensively characterized over the past few decades. Interestingly, the expression of the enzymes and the consequent structure and function of the polysaccharide chains can vary temporally and spatially during development and under certain pathophysiological conditions, suggesting their assembly is tightly regulated in cells. Due to their many key roles in cell homeostasis and disease, there is much interest in targeting the assembly and function of GAGs as a therapeutic approach. Recent advances in genomics and GAG analytical techniques have pushed the field and generated new perspectives on the regulation of mammalian glycosylation. This review highlights the spatiotemporal diversity of GAGs and the mechanisms guiding their assembly and function in human biology and disease.
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Affiliation(s)
- Amrita Basu
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia
| | - Neil G. Patel
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia,2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
| | - Elijah D. Nicholson
- 2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
| | - Ryan J. Weiss
- 1Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia,2Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia
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182
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Moretto E, Stuart S, Surana S, Vargas JNS, Schiavo G. The Role of Extracellular Matrix Components in the Spreading of Pathological Protein Aggregates. Front Cell Neurosci 2022; 16:844211. [PMID: 35573838 PMCID: PMC9100790 DOI: 10.3389/fncel.2022.844211] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/08/2022] [Indexed: 11/23/2022] Open
Abstract
Several neurodegenerative diseases are characterized by the accumulation of aggregated misfolded proteins. These pathological agents have been suggested to propagate in the brain via mechanisms similar to that observed for the prion protein, where a misfolded variant is transferred from an affected brain region to a healthy one, thereby inducing the misfolding and/or aggregation of correctly folded copies. This process has been characterized for several proteins, such as α-synuclein, tau, amyloid beta (Aβ) and less extensively for huntingtin and TDP-43. α-synuclein, tau, TDP-43 and huntingtin are intracellular proteins, and their aggregates are located in the cytosol or nucleus of neurons. They have been shown to spread between cells and this event occurs, at least partially, via secretion of these protein aggregates in the extracellular space followed by re-uptake. Conversely, Aβ aggregates are found mainly extracellularly, and their spreading occurs in the extracellular space between brain regions. Due to the inherent nature of their spreading modalities, these proteins are exposed to components of the extracellular matrix (ECM), including glycans, proteases and core matrix proteins. These ECM components can interact with or process pathological misfolded proteins, potentially changing their properties and thus regulating their spreading capabilities. Here, we present an overview of the documented roles of ECM components in the spreading of pathological protein aggregates in neurodegenerative diseases with the objective of identifying the current gaps in knowledge and stimulating further research in the field. This could potentially lead to the identification of druggable targets to slow down the spreading and/or progression of these pathologies.
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Affiliation(s)
- Edoardo Moretto
- Institute of Neuroscience, National Research Council, CNR, Milan, Italy
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- *Correspondence: Edoardo Moretto,
| | - Skye Stuart
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Sunaina Surana
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
| | - Jose Norberto S. Vargas
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
| | - Giampietro Schiavo
- UK Dementia Research Institute, University College London, London, United Kingdom
- Department of Neuromuscular Diseases, Queen Square Institute of Neurology, University College London, London, United Kingdom
- UCL Queen Square Motor Neuron Disease Centre, University College London, London, United Kingdom
- Giampietro Schiavo,
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183
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Houlton J, Zubkova OV, Clarkson AN. Recovery of Post-Stroke Spatial Memory and Thalamocortical Connectivity Following Novel Glycomimetic and rhBDNF Treatment. Int J Mol Sci 2022; 23:ijms23094817. [PMID: 35563207 PMCID: PMC9101131 DOI: 10.3390/ijms23094817] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/10/2022] Open
Abstract
Stroke-induced cognitive impairments remain of significant concern, with very few treatment options available. The involvement of glycosaminoglycans in neuroregenerative processes is becoming better understood and recent advancements in technology have allowed for cost-effective synthesis of novel glycomimetics. The current study evaluated the therapeutic potential of two novel glycomimetics, compound A and G, when administered systemically five-days post-photothrombotic stroke to the PFC. As glycosaminoglycans are thought to facilitate growth factor function, we also investigated the combination of our glycomimetics with intracerebral, recombinant human brain-derived neurotrophic factor (rhBDNF). C56BL/6J mice received sham or stroke surgery and experimental treatment (day-5), before undergoing the object location recognition task (OLRT). Four-weeks post-surgery, animals received prelimbic injections of the retrograde tracer cholera toxin B (CTB), before tissue was collected for quantification of thalamo-PFC connectivity and reactive astrogliosis. Compound A or G treatment alone modulated a degree of reactive astrogliosis yet did not influence spatial memory performance. Contrastingly, compound G+rhBDNF treatment significantly improved spatial memory, dampened reactive astrogliosis and limited stroke-induced loss of connectivity between the PFC and midline thalamus. As rhBDNF treatment had negligible effects, these findings support compound A acted synergistically to enhance rhBDNF to restrict secondary degeneration and facilitate functional recovery after PFC stroke.
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Affiliation(s)
- Josh Houlton
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand;
| | - Olga V. Zubkova
- The Ferrier Research Institute, Gracefield Research Centre, Victoria University of Wellington, 69 Gracefield Road, Lower Hutt 5040, New Zealand;
| | - Andrew N. Clarkson
- Department of Anatomy, Brain Health Research Centre and Brain Research New Zealand, University of Otago, Dunedin 9054, New Zealand;
- Correspondence: ; Tel./Fax: +64-3-279-7326
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184
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Grabarics M, Lettow M, Kirschbaum C, Greis K, Manz C, Pagel K. Mass Spectrometry-Based Techniques to Elucidate the Sugar Code. Chem Rev 2022; 122:7840-7908. [PMID: 34491038 PMCID: PMC9052437 DOI: 10.1021/acs.chemrev.1c00380] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Indexed: 12/22/2022]
Abstract
Cells encode information in the sequence of biopolymers, such as nucleic acids, proteins, and glycans. Although glycans are essential to all living organisms, surprisingly little is known about the "sugar code" and the biological roles of these molecules. The reason glycobiology lags behind its counterparts dealing with nucleic acids and proteins lies in the complexity of carbohydrate structures, which renders their analysis extremely challenging. Building blocks that may differ only in the configuration of a single stereocenter, combined with the vast possibilities to connect monosaccharide units, lead to an immense variety of isomers, which poses a formidable challenge to conventional mass spectrometry. In recent years, however, a combination of innovative ion activation methods, commercialization of ion mobility-mass spectrometry, progress in gas-phase ion spectroscopy, and advances in computational chemistry have led to a revolution in mass spectrometry-based glycan analysis. The present review focuses on the above techniques that expanded the traditional glycomics toolkit and provided spectacular insight into the structure of these fascinating biomolecules. To emphasize the specific challenges associated with them, major classes of mammalian glycans are discussed in separate sections. By doing so, we aim to put the spotlight on the most important element of glycobiology: the glycans themselves.
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Affiliation(s)
- Márkó Grabarics
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Maike Lettow
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Carla Kirschbaum
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Kim Greis
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Christian Manz
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
| | - Kevin Pagel
- Institute
of Chemistry and Biochemistry, Freie Universität
Berlin, Arnimallee 22, 14195 Berlin, Germany
- Department
of Molecular Physics, Fritz Haber Institute
of the Max Planck Society, Faradayweg 4−6, 14195 Berlin, Germany
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185
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Gao P, Xu M, Zhang Q, Chen CZ, Guo H, Ye Y, Zheng W, Shen M. Graph Convolutional Network-Based Screening Strategy for Rapid Identification of SARS-CoV-2 Cell-Entry Inhibitors. J Chem Inf Model 2022; 62:1988-1997. [PMID: 35404596 PMCID: PMC9016773 DOI: 10.1021/acs.jcim.2c00222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Indexed: 11/29/2022]
Abstract
The cell entry of SARS-CoV-2 has emerged as an attractive drug development target. We previously reported that the entry of SARS-CoV-2 depends on the cell surface heparan sulfate proteoglycan (HSPG) and the cortex actin, which can be targeted by therapeutic agents identified by conventional drug repurposing screens. However, this drug identification strategy requires laborious library screening, which is time consuming, and often limited number of compounds can be screened. As an alternative approach, we developed and trained a graph convolutional network (GCN)-based classification model using information extracted from experimentally identified HSPG and actin inhibitors. This method allowed us to virtually screen 170,000 compounds, resulting in ∼2000 potential hits. A hit confirmation assay with the uptake of a fluorescently labeled HSPG cargo further shortlisted 256 active compounds. Among them, 16 compounds had modest to strong inhibitory activities against the entry of SARS-CoV-2 pseudotyped particles into Vero E6 cells. These results establish a GCN-based virtual screen workflow for rapid identification of new small molecule inhibitors against validated drug targets.
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Affiliation(s)
- Peng Gao
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
| | - Miao Xu
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
| | - Qi Zhang
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Catherine Z Chen
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
| | - Hui Guo
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
| | - Yihong Ye
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Wei Zheng
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
| | - Min Shen
- The National Center for Advancing Translational Sciences (NCATS), National Institutes of Health (NIH), Bethesda, Maryland 20850, United States
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186
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Mikucki A, McCluskey NR, Kahler CM. The Host-Pathogen Interactions and Epicellular Lifestyle of Neisseria meningitidis. Front Cell Infect Microbiol 2022; 12:862935. [PMID: 35531336 PMCID: PMC9072670 DOI: 10.3389/fcimb.2022.862935] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 02/28/2022] [Indexed: 01/17/2023] Open
Abstract
Neisseria meningitidis is a gram-negative diplococcus and a transient commensal of the human nasopharynx. It shares and competes for this niche with a number of other Neisseria species including N. lactamica, N. cinerea and N. mucosa. Unlike these other members of the genus, N. meningitidis may become invasive, crossing the epithelium of the nasopharynx and entering the bloodstream, where it rapidly proliferates causing a syndrome known as Invasive Meningococcal Disease (IMD). IMD progresses rapidly to cause septic shock and meningitis and is often fatal despite aggressive antibiotic therapy. While many of the ways in which meningococci survive in the host environment have been well studied, recent insights into the interactions between N. meningitidis and the epithelial, serum, and endothelial environments have expanded our understanding of how IMD develops. This review seeks to incorporate recent work into the established model of pathogenesis. In particular, we focus on the competition that N. meningitidis faces in the nasopharynx from other Neisseria species, and how the genetic diversity of the meningococcus contributes to the wide range of inflammatory and pathogenic potentials observed among different lineages.
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Affiliation(s)
- August Mikucki
- Marshall Centre for Infectious Diseases Research and Training, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
| | - Nicolie R. McCluskey
- Marshall Centre for Infectious Diseases Research and Training, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
- College of Science, Health, Engineering and Education, Telethon Kids Institute, Murdoch University, Perth, WA, Australia
| | - Charlene M. Kahler
- Marshall Centre for Infectious Diseases Research and Training, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
- *Correspondence: Charlene M. Kahler,
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187
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Liu C, Li R, Li Y, Lin X, Zhao K, Liu Q, Wang S, Yang X, Shi X, Ma Y, Pei C, Wang H, Bao W, Hui J, Yang T, Xu Z, Lai T, Berberoglu MA, Sahu SK, Esteban MA, Ma K, Fan G, Li Y, Liu S, Chen A, Xu X, Dong Z, Liu L. Spatiotemporal mapping of gene expression landscapes and developmental trajectories during zebrafish embryogenesis. Dev Cell 2022; 57:1284-1298.e5. [PMID: 35512701 DOI: 10.1016/j.devcel.2022.04.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 02/06/2022] [Accepted: 04/05/2022] [Indexed: 01/01/2023]
Abstract
A major challenge in understanding vertebrate embryogenesis is the lack of topographical transcriptomic information that can help correlate microenvironmental cues within the hierarchy of cell-fate decisions. Here, we employed Stereo-seq to profile 91 zebrafish embryo sections covering six critical time points during the first 24 h of development, obtaining a total of 152,977 spots at a resolution of 10 × 10 × 15 μm3 (close to cellular size) with spatial coordinates. Meanwhile, we identified spatial modules and co-varying genes for specific tissue organizations. By performing the integrated analysis of the Stereo-seq and scRNA-seq data from each time point, we reconstructed the spatially resolved developmental trajectories of cell-fate transitions and molecular changes during zebrafish embryogenesis. We further investigated the spatial distribution of ligand-receptor pairs and identified potentially important interactions during zebrafish embryo development. Our study constitutes a fundamental reference for further studies aiming to understand vertebrate development.
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Affiliation(s)
- Chang Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Rui Li
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Young Li
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Xiumei Lin
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Kaichen Zhao
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Qun Liu
- BGI-Shenzhen, Shenzhen 518083, China; BGI-Qingdao, BGI-Shenzhen, Qingdao 266555, China
| | - Shuowen Wang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Brain Research Institute, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China
| | - Xueqian Yang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Xuyang Shi
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Yuting Ma
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenyu Pei
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Hui Wang
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Wendai Bao
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | | | - Tao Yang
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Zhicheng Xu
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Tingting Lai
- China National GeneBank, Shenzhen, Guangdong 518120, China
| | - Michael Arman Berberoglu
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | | | - Miguel A Esteban
- BGI-Shenzhen, Shenzhen 518083, China; Laboratory of Integrative Biology, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China; CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Guangzhou 510530, China; Institute of Stem Cells and Regeneration, Chinese Academy of Sciences, Beijing 100101, China
| | | | - Guangyi Fan
- BGI-Shenzhen, Shenzhen 518083, China; BGI-Qingdao, BGI-Shenzhen, Qingdao 266555, China
| | | | - Shiping Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China
| | - Ao Chen
- BGI-Shenzhen, Shenzhen 518083, China; Department of Biology, University of Copenhagen, Copenhagen 2200, Denmark
| | - Xun Xu
- BGI-Shenzhen, Shenzhen 518083, China; Guangdong Provincial Key Laboratory of Genome Read and Write, Shenzhen 518120, China.
| | - Zhiqiang Dong
- College of Biomedicine and Health, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Brain Research Institute, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, China.
| | - Longqi Liu
- BGI-Shenzhen, Shenzhen 518083, China; Shenzhen Key Laboratory of Single-Cell Omics, Shenzhen 518083, China.
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Abstract
Purpose of Review Despite the continued growth of spine fusion procedures, the ideal material for bone regeneration remains unclear. Current bone graft substitutes and extenders in use such as exogenous BMP-2 or demineralized bone matrix and hydroxyapatite either have serious complications associated with use or lead to clinically significant rates of non-union. The introduction of nanotechnology and 3D printing to regenerative medicine facilitates the development of safer and more efficacious bone regenerative scaffolds that present solutions to these problems. Many researchers in orthopedics recognize the importance of lowering the dose of recombinant growth factors like BMP-2 to avoid the complications associated with its normal required supraphysiologic dosing to achieve high rates of fusion in spine surgery. Recent Findings Recent iterations of bioactive scaffolds have moved towards peptide amphiphiles that bind endogenous osteoinductive growth factor sources at the site of implantation. These molecules have been shown to provide a highly fluid, natural mimetic of natural extracellular matrix to achieve 100% fusion rates at 10–100 times lower doses of BMP-2 relative to controls in pre-clinical animal posterolateral fusion models. Alternative approaches to bone regeneration include the combination of existing natural growth factor sources like human bone combined with bioactive, biocompatible components like hydroxyapatite using 3D-printing technologies. Their elastomeric, 3D-printed scaffolds demonstrate an optimal safety profile and high rates of fusion (~92%) in the rat posterolateral fusion model. Summary Bioactive peptide amphiphiles and developments in 3D printing offer the promising future of a recombinant growth factor- free bone graft substitute with similar efficacy but improved safety profiles compared to existing bone graft substitutes.
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189
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Mitoxantrone modulates a heparan sulfate-spike complex to inhibit SARS-CoV-2 infection. Sci Rep 2022; 12:6294. [PMID: 35440680 PMCID: PMC9016215 DOI: 10.1038/s41598-022-10293-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 04/05/2022] [Indexed: 11/09/2022] Open
Abstract
Spike-mediated entry of SARS-CoV-2 into human airway epithelial cells is an attractive therapeutic target for COVID-19. In addition to protein receptors, the SARS-CoV-2 spike (S) protein also interacts with heparan sulfate, a negatively charged glycosaminoglycan (GAG) attached to certain membrane proteins on the cell surface. This interaction facilitates the engagement of spike with a downstream receptor to promote viral entry. Here, we show that Mitoxantrone, an FDA-approved topoisomerase inhibitor, targets a heparan sulfate-spike complex to compromise the fusogenic function of spike in viral entry. As a single agent, Mitoxantrone inhibits the infection of an authentic SARS-CoV-2 strain in a cell-based model and in human lung EpiAirway 3D tissues. Gene expression profiling supports the plasma membrane as a major target of Mitoxantrone but also underscores an undesired activity targeting nucleosome dynamics. We propose that Mitoxantrone analogs bearing similar heparan sulfate-binding activities but with reduced affinity for DNA topoisomerases may offer an alternative therapy to overcome breakthrough infections in the post-vaccine era.
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190
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Recognition of Tumor Nidogen-1 by Neutrophil C-Type Lectin Receptors. Biomedicines 2022; 10:biomedicines10040908. [PMID: 35453656 PMCID: PMC9030733 DOI: 10.3390/biomedicines10040908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/11/2022] [Accepted: 04/13/2022] [Indexed: 12/04/2022] Open
Abstract
Neutrophil-mediated cytotoxicity toward tumor cells requires cell contact and is mediated by hydrogen peroxide. We have recently shown that Cathepsin G expressed on the neutrophil surface interacts with tumor RAGE, and this interaction facilitates neutrophil cytotoxicity. Interruption of the Cathepsin G–RAGE interaction led to 50–80% reduction in cytotoxicity, suggesting that additional interactions are also involved. Here we show that blocking antibodies to the C-type lectin receptors (CLRs) Clec4e and Dectin-1, but not those to NKG2D, attenuated murine neutrophil cytotoxicity towards murine tumor cells, suggesting a contributing role for these CLRs in neutrophil recognition of tumor cells. We further observed that the CLRs interact with tumor Nidogen-1 and Hspg2, two sulfated glycoproteins of the basement membrane. Both Nidogen-1 and Hspg2 were found to be expressed on the tumor cell surface. The knockdown of Nidogen-1, but not that of Hspg2, led to reduced susceptibility of the tumor cells to neutrophil cytotoxicity. Altogether, this study suggests a role for CLR–Nidogen-1 interaction in the recognition of tumor cells by neutrophils, and this interaction facilitates neutrophil-mediated killing of the tumor cells.
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191
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Spijkers-Shaw S, Campbell K, Shields NJ, Miller JH, Rendle PM, Jiao W, Young SL, Zubkova OV. Synthesis of novel glycolipid mimetics of heparan sulfate and their application in colorectal cancer treatment in a mouse model. Chem Asian J 2022; 17:e202200228. [PMID: 35427432 PMCID: PMC9324168 DOI: 10.1002/asia.202200228] [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: 03/03/2022] [Revised: 04/11/2022] [Indexed: 11/25/2022]
Abstract
Heparan sulfate (HS) is a highly sulfated natural carbohydrate that plays crucial roles in cancer, inflammation, and angiogenesis. Heparanase (HPSE) is the sole HS degrading endoglycosidase that cleaves HS at structure‐dependent sites along the polysaccharide chain. Overexpression of HPSE by cancer cells correlates with increased tumor size and enhanced metastasis. Previously we have shown that a tetramer HS mimetic is a potent HPSE inhibitor displaying remarkable anticancer activity in vivo. Building on that work, we report the synthesis and testing of a novel library of single entity trimer glycolipid mimetics that effectively inhibit HPSE at low nanomolar concentrations. A lipophilic arm was introduced to assess whether an improvement of pharmacokinetics and plasma residence time would offset the reduction in charge and multivalency. Preclinical tests in a mouse syngeneic model showed effective tumor growth inhibition by the tetramer but not the trimer glycomimetic.
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Affiliation(s)
- Sam Spijkers-Shaw
- Victoria University of Wellington Ferrier Research Institute NEW ZEALAND
| | - Katrin Campbell
- University of Otago Department of Pathology, Dunedin School of Medicine NEW ZEALAND
| | - Nicholas J. Shields
- The University of Sydney School of Medical Sciences, Faculty of Medicine and Health AUSTRALIA
| | - John H. Miller
- Victoria University of Wellington School of Biological sciences Wellington NEW ZEALAND
| | - Phillip M. Rendle
- Victoria University of Wellington Ferrier Research Institute NEW ZEALAND
| | - Wanting Jiao
- Victoria University of Wellington Ferrier Research Institute NEW ZEALAND
| | - Sarah L. Young
- The University of Sydney School of Medical Sciences, Faculty of Medicine and Health AUSTRALIA
| | - Olga V Zubkova
- Victoria Universtity of Wellington Ferrier Research Institute 69 Gracefield RdGracefield Research Centre 5040 Lower Hutt NEW ZEALAND
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192
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Hwang J, Park E, Choi YW, Min S, Oh ES. Emerging role of syndecans in maintaining homeostasis of colon epithelium during inflammation. Am J Physiol Cell Physiol 2022; 322:C960-C966. [PMID: 35385327 DOI: 10.1152/ajpcell.00048.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The syndecans are a family of transmembrane proteoglycans that are widespread in mammalian tissues. Located at the cell surface membrane, they contribute to modulating the composition of the extracellular matrix via glycosaminoglycan chains (GAGs) attached to their extracellular domains. Syndecans can interact with a variety of extracellular ligands through their core proteins and GAGs, and may also transmit signals through their transmembrane domain to regulate intracellular functions. These properties enable syndecan to modulate glycocalyx formation, epithelial cell-to-cell connections for cell barrier formation, and epithelial cell-lamina propria interactions in the colon epithelium, all of which are crucial for the homeostasis of this tissue. Inflammation induces structural alterations of the colon epithelium, and accumulating evidence suggests that syndecan expression might play important regulatory functions during inflammation. This review summarizes the possible roles of syndecans in maintaining tissue homeostasis in the colon epithelium, especially under inflammation.
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Affiliation(s)
- Jisun Hwang
- Department of Life Sciences, Ewha Womans University, Seoul, Korea (South), Republic of
| | - Eunhye Park
- Department of Life Sciences, Ewha Womans University, Seoul, Korea (South), Republic of
| | - Yeong-Woo Choi
- Department of Life Sciences, Ewha Womans University, Seoul, Korea (South), Republic of
| | - Shinhye Min
- Department of Life Sciences, Ewha Womans University, Seoul, Korea (South), Republic of
| | - Eok-Soo Oh
- Department of Life Sciences, Ewha Womans University, Seoul, Korea (South), Republic of
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193
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Mishra I, Xie WR, Bournat JC, He Y, Wang C, Silva ES, Liu H, Ku Z, Chen Y, Erokwu BO, Jia P, Zhao Z, An Z, Flask CA, He Y, Xu Y, Chopra AR. Protein tyrosine phosphatase receptor δ serves as the orexigenic asprosin receptor. Cell Metab 2022; 34:549-563.e8. [PMID: 35298903 PMCID: PMC8986618 DOI: 10.1016/j.cmet.2022.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/25/2021] [Accepted: 02/22/2022] [Indexed: 12/20/2022]
Abstract
Asprosin is a fasting-induced glucogenic and centrally acting orexigenic hormone. The olfactory receptor Olfr734 is known to be the hepatic receptor for asprosin that mediates its effects on glucose production, but the receptor for asprosin's orexigenic function has been unclear. Here, we have identified protein tyrosine phosphatase receptor δ (Ptprd) as the orexigenic receptor for asprosin. Asprosin functions as a high-affinity Ptprd ligand in hypothalamic AgRP neurons, regulating the activity of this circuit in a cell-autonomous manner. Genetic ablation of Ptprd results in a strong loss of appetite, leanness, and an inability to respond to the orexigenic effects of asprosin. Ablation of Ptprd specifically in AgRP neurons causes resistance to diet-induced obesity. Introduction of the soluble Ptprd ligand-binding domain in the circulation of mice suppresses appetite and blood glucose levels by sequestering plasma asprosin. Identification of Ptprd as the orexigenic asprosin receptor creates a new avenue for the development of anti-obesity therapeutics.
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Affiliation(s)
- Ila Mishra
- Harrington Discovery Institute, Cleveland, OH, USA
| | - Wei Rose Xie
- Harrington Discovery Institute, Cleveland, OH, USA
| | - Juan C Bournat
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Yang He
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Chunmei Wang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | | | - Hailan Liu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Zhiqiang Ku
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Yinghua Chen
- Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH, USA
| | - Bernadette O Erokwu
- Departments of Radiology, Biomedical Engineering, and Pediatrics, Case Western Reserve University, Cleveland, OH, USA
| | - Peilin Jia
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Zhongming Zhao
- Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Zhiqiang An
- Brown Foundation Institute of Molecular Medicine, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Chris A Flask
- Departments of Radiology, Biomedical Engineering, and Pediatrics, Case Western Reserve University, Cleveland, OH, USA
| | - Yanlin He
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA; Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, LA, USA
| | - Yong Xu
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA; USDA-ARS Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Atul R Chopra
- Harrington Discovery Institute, Cleveland, OH, USA; Department of Medicine, Case Western Reserve University, Cleveland, OH, USA; Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA.
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194
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Bali S, Prasad S, Saini V. Ayurvedic lipid based rasayans - A perspective on the preparation and pharmacological significance of lipids on the bioavailability of phytoconstituents. J Ayurveda Integr Med 2022; 13:100526. [PMID: 34794864 PMCID: PMC8728051 DOI: 10.1016/j.jaim.2021.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/15/2021] [Accepted: 09/11/2021] [Indexed: 11/29/2022] Open
Abstract
For thousands of years, lipid based Ayurvedic formulations have been made in India, and the craft has survived down the millennia up to the present time. Some of these deliciously potent phytonutrient preparations are very popular and have sustained the test of time pertaining to their efficacy. Recent researches on the role of phytonutrients in promoting cardio-pulmonary, brain and immune health substantially buttress the philosophy underlying the use of lipids in preparing these emulsions, since a large number of these bioactives are lipophilic. Being lipoidic, they are absorbed through the lacteals in the small intestine, and are then transported through the thoracic duct directly to the heart, bypassing the liver. The formulations utilizing ghee (clarified butter) or sesame oil as the carrier lipid, either while frying the myrobalams or as Anupana (adjuvant), have special significance in modulating bodily immunity, since the immune system is housed in lymphatics which are lipid rich. Amla and lipid based Ayurvedic rasayans (rejuvenating formulations) are a popular and highly palatable group of phytonutraceutical preparations. This group of polyherbal adaptogenic formulations is classified separately from other formulations in Ayurvedic therapeutics. Several of these health-promoting rasayans are suitable to be consumed by all age-groups in the recommended season and dose. Current research on endothelial and immune cell receptor mediated uptake of lipoidic molecules, together with the knowledge of lipid absorption pathways, lends credence to the usefulness of rasayans in targeting the cardio-pulmonary and immune systems. An attempt has been made in this paper to elucidate the mechanisms underpinning the complex interplay between lipid delivered hydrophobic phyto-molecules, systemic lymphatics and the Immune system.
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Affiliation(s)
- Sharadendu Bali
- Maharishi Markandeshwar Institute of Medical Sciences and Research, Ambala, 133207, India.
| | - Suvarna Prasad
- Maharishi Markandeshwar Institute of Medical Sciences and Research, Ambala, 133207, India
| | - Vipin Saini
- Maharishi Markandeshwar University, Solan, India
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195
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Choi JU, Zhang X, Hasan MM, Karim M, Chung SW, Alam F, Alqahtani F, Reddy SY, Kim IS, Al-Hilal TA, Byun Y. Targeting angiogenic growth factors using therapeutic glycosaminoglycans on doppel-expressing endothelial cells for blocking angiogenic signaling in cancer. Biomaterials 2022; 283:121423. [DOI: 10.1016/j.biomaterials.2022.121423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 01/31/2022] [Accepted: 02/17/2022] [Indexed: 01/18/2023]
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196
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Vang S, Cochran P, Sebastian Domingo J, Krick S, Barnes JW. The Glycobiology of Pulmonary Arterial Hypertension. Metabolites 2022; 12:metabo12040316. [PMID: 35448503 PMCID: PMC9026683 DOI: 10.3390/metabo12040316] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/23/2022] [Accepted: 03/28/2022] [Indexed: 01/27/2023] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive pulmonary vascular disease of complex etiology. Cases of PAH that do not receive therapy after diagnosis have a low survival rate. Multiple reports have shown that idiopathic PAH, or IPAH, is associated with metabolic dysregulation including altered bioavailability of nitric oxide (NO) and dysregulated glucose metabolism. Multiple processes such as increased proliferation of pulmonary vascular cells, angiogenesis, apoptotic resistance, and vasoconstriction may be regulated by the metabolic changes demonstrated in PAH. Recent reports have underscored similarities between metabolic abnormalities in cancer and IPAH. In particular, increased glucose uptake and altered glucose utilization have been documented and have been linked to the aforementioned processes. We were the first to report a link between altered glucose metabolism and changes in glycosylation. Subsequent reports have highlighted similar findings, including a potential role for altered metabolism and aberrant glycosylation in IPAH pathogenesis. This review will detail research findings that demonstrate metabolic dysregulation in PAH with an emphasis on glycobiology. Furthermore, this report will illustrate the similarities in the pathobiology of PAH and cancer and highlight the novel findings that researchers have explored in the field.
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197
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Downs M, Sethi MK, Raghunathan R, Layne MD, Zaia J. Matrisome changes in Parkinson's disease. Anal Bioanal Chem 2022; 414:3005-3015. [PMID: 35112150 PMCID: PMC8944212 DOI: 10.1007/s00216-022-03929-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/18/2022] [Accepted: 01/26/2022] [Indexed: 12/23/2022]
Abstract
Extracellular matrix (ECM) proteins, collectively known as the matrisome, include collagens, glycoproteins, and proteoglycans. Alterations in the matrisome have been implicated in the neurodegenerative pathologies including Parkinson's disease (PD). In this work, we utilized our previously published PD and control proteomics data from human prefrontal cortex and focused our analysis on the matrisome. Among matrisome proteins, we observed a significant enrichment in the expression of type I collagen in PD vs. control samples. We then performed histological analysis on the same samples used for proteomics study, and examined collagen expression using picrosirius red staining. Interestingly, we observed similar trends in collagen abundance in PD vs. control as in our matrisome analysis; thus, this and other histological analyses will be useful as a complementary technique in the future to study the matrisome in PD with a larger cohort, and it may aid in choosing regions of interest for proteomic analysis. Additionally, collagen hydroxyprolination was less variable in PD compared to controls. Glycoproteomic changes in matrisome molecules were also observed in PD relative to aged individuals, especially related to type VI collagen and versican. We further examined the list of differentially expressed matrisome molecules using network topology-based analysis and found that angiogenesis indicated by alterations in decorin and several members of the collagen family was affected in PD. These findings collectively identified matrisome changes associated with PD; further studies with a larger cohort are required to validate the current results.
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Affiliation(s)
- Margaret Downs
- Department of Biochemistry, Boston University, Boston, MA, 02118, USA
| | - Manveen K Sethi
- Department of Biochemistry, Boston University, Boston, MA, 02118, USA
| | - Rekha Raghunathan
- Department of Biochemistry, Boston University, Boston, MA, 02118, USA
- Molecular and Translational Medicine Program, Boston University, Boston, MA, 02118, USA
| | - Matthew D Layne
- Department of Biochemistry, Boston University, Boston, MA, 02118, USA
| | - Joseph Zaia
- Department of Biochemistry, Boston University, Boston, MA, 02118, USA.
- Molecular and Translational Medicine Program, Boston University, Boston, MA, 02118, USA.
- Dept. of Biochemistry, Center for Biomedical Mass Spectrometry, Boston University Medical Campus, 670 Albany St., Rm. 509, Boston, MA, 02118, USA.
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198
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Yurdagul A. Crosstalk Between Macrophages and Vascular Smooth Muscle Cells in Atherosclerotic Plaque Stability. Arterioscler Thromb Vasc Biol 2022; 42:372-380. [PMID: 35172605 PMCID: PMC8957544 DOI: 10.1161/atvbaha.121.316233] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Most acute cardiovascular events are due to plaque rupture, with atheromas containing large necrotic cores and thin fibrous caps being more susceptible to rupture and lesions with small necrotic cores and thick fibrous caps being more protected from rupture. Atherosclerotic plaques are comprised various extracellular matrix proteins, modified lipoprotein particles, and cells of different origins, that is, vascular cells and leukocytes. Although much has been revealed about the mechanisms that lead to plaque instability, several key areas remain incompletely understood. This In-Focus Review highlights processes related to cellular crosstalk and the role of the tissue microenvironment in determining cell function and plaque stability. Recent advances highlight critical underpinnings of atherosclerotic plaque vulnerability, particularly impairments in the ability of macrophages to clear dead cells and phenotypic switching of vascular smooth muscle cells. However, these processes do not occur in isolation, as crosstalk between macrophages and vascular smooth muscle cells and interactions with their surrounding microenvironment play a significant role in determining plaque stability. Understanding these aspects of cellular crosstalk within an atherosclerotic plaque may shed light on how to modify cell behavior and identify novel approaches to transform rupture-prone atheromas into stable lesions.
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Affiliation(s)
- Arif Yurdagul
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences, Shreveport
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199
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Kaczor-Kamińska M, Kamiński K, Wróbel M. Heparan Sulfate, Mucopolysaccharidosis IIIB and Sulfur Metabolism Disorders. Antioxidants (Basel) 2022; 11:antiox11040678. [PMID: 35453363 PMCID: PMC9026333 DOI: 10.3390/antiox11040678] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023] Open
Abstract
Mucopolysaccharidosis, type IIIB (MPS IIIB) is a rare disease caused by mutations in the N-alpha-acetylglucosaminidase (NAGLU) gene resulting in decreased or absent enzyme activity. On the cellular level, the disorder is characterized by the massive lysosomal storage of heparan sulfate (HS)—one species of glycosaminoglycans. HS is a sulfur-rich macromolecule, and its accumulation should affect the turnover of total sulfur in cells; according to the studies presented here, it, indeed, does. The lysosomal degradation of HS in cells produces monosaccharides and inorganic sulfate (SO42−). Sulfate is a product of L-cysteine metabolism, and any disruption of its levels affects the entire L-cysteine catabolism pathway, which was first reported in 2019. It is known that L-cysteine level is elevated in cells with the Naglu−/− gene mutation and in selected tissues of individuals with MPS IIIB. The level of glutathione and the Naglu−/− cells’ antioxidant potential are significantly reduced, as well as the activity of 3-mercaptopyruvate sulfurtransferase (MPST, EC 2.8.1.2) and the level of sulfane sulfur-containing compounds. The direct reason is not yet known. This paper attempts to identify some of cause-and-effect correlations that may lead to this condition and identifies research directions that should be explored.
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Affiliation(s)
- Marta Kaczor-Kamińska
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Krakow, Poland;
- Correspondence: ; Tel.: +48-12-422-7400
| | - Kamil Kamiński
- Department of Physical Chemistry, Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa St., 30-387 Krakow, Poland;
| | - Maria Wróbel
- Chair of Medical Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, 7 Kopernika St., 31-034 Krakow, Poland;
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200
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Tanaka A, Suzuki Y. Genome-Wide Approaches to Unravel the Host Factors Involved in Chikungunya Virus Replication. Front Microbiol 2022; 13:866271. [PMID: 35401487 PMCID: PMC8988064 DOI: 10.3389/fmicb.2022.866271] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 02/26/2022] [Indexed: 01/05/2023] Open
Abstract
Chikungunya virus (CHIKV), the causative agent of Chikungunya fever (CHIKVF) that is often characterized by fever, headache, rash, and arthralgia, is transmitted to humans by Aedes mosquito bites. Although the mortality rate associated with CHIKV infection is not very high, CHIKVF has been confirmed in more than 40 countries, not only in tropical but also in temperate areas. Therefore, CHIKV is a growing major threat to the public health of the world. However, a specific drug is not available for CHIKV infection. As demonstrated by many studies, the processes completing the replication of CHIKV are assisted by many host factors, whereas it has become clear that the host cell possesses some factors limiting the virus replication. This evidence will provide us with an important clue for the development of pharmacological treatment against CHIKVF. In this review, we briefly summarize cellular molecules participating in the CHIKV infection, particularly focusing on introducing recent genome-wide screen studies that enabled illuminating the virus-host interactions.
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Affiliation(s)
- Atsushi Tanaka
- Division of Research Animal Laboratory and Translational Medicine, Research and Development Center, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
- *Correspondence: Atsushi Tanaka,
| | - Youichi Suzuki
- Department of Microbiology and Infection Control, Faculty of Medicine, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
- Youichi Suzuki,
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