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He L, Hertel L, James CD, Morgan IM, Klingelhutz AJ, Fu TM, Kauvar LM, McVoy MA. Inhibition of human cytomegalovirus entry into mucosal epithelial cells. Antiviral Res 2024; 230:105971. [PMID: 39074588 DOI: 10.1016/j.antiviral.2024.105971] [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: 04/01/2024] [Revised: 07/16/2024] [Accepted: 07/24/2024] [Indexed: 07/31/2024]
Abstract
Human cytomegalovirus (CMV) causes serious developmental disabilities in newborns infected in utero following oral acquisition by the mother. Thus, neutralizing antibodies in maternal saliva have potential to prevent maternal infection and, consequently, fetal transmission and disease. Based on standard cell culture models, CMV entry mediators (and hence neutralizing targets) are cell type-dependent: entry into fibroblasts requires glycoprotein B (gB) and a trimeric complex (TC) of glycoproteins H, L, and O, whereas endothelial and epithelial cell entry additionally requires a pentameric complex (PC) of glycoproteins H and L with UL128, UL130, and UL131A. However, as the mediators of mucosal cell entry and the potential impact of cellular differentiation remained unclear, the present studies utilized mutant viruses, neutralizing antibodies, and soluble TC-receptor to determine the entry mediators required for infection of mucocutaneus cell lines and primary tonsil epithelial cells. Entry into undifferentiated cells was largely PC-dependent, but PC-independent entry could be induced by differentiation. TC-independent entry was also observed and varied by cell line and differentiation. Infection of primary tonsil cells from some donors was entirely TC-independent. In contrast, an antibody to gB or disruption of virion attachment using heparin blocked entry into all cells. These findings indicate that CMV entry into the spectrum of cell types encountered in vivo is likely to be more complex than has been suggested by standard cell culture models and may be influenced by the relative abundance of virion envelope glycoprotein complexes as well as by cell type, tissue of origin, and state of differentiation.
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Affiliation(s)
- Li He
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Laura Hertel
- Department of Pediatrics, School of Medicine, University of California San Francisco, Oakland, CA, 94609, USA
| | - Claire D James
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Iain M Morgan
- Philips Institute for Oral Health Research, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Aloysius J Klingelhutz
- Department of Microbiology and Immunology, University of Iowa, Iowa City, IA, 52242, USA
| | - Tong-Ming Fu
- Texas Therapeutics Institute, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | | | - Michael A McVoy
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298, USA.
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Christian JM, Zoepfl M, Johnson WE, Ginsburg E, Peterson EJ, Hampton JD, Farrell NP. Glycosaminoglycan-directed cobalt complexes. J Inorg Biochem 2023; 245:112254. [PMID: 37182504 DOI: 10.1016/j.jinorgbio.2023.112254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/20/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
The biological activity of the 6+ Co containing Werner's Complex has been described and mechanistic considerations suggest that the highly anionic glycosaminoglycans (heparan sulfate, HS, GAGs) are implicated in this activity [Paiva et al. 2021]. To examine in detail the molecular basis of Werner's Complex biological properties we have examined a selection of simple mononuclear Co3+ compounds for their interactions with HS and Fondaparinux (FPX). FPX is a highly sulfated synthetic pentasaccharide used as a model HS substrate [Mangrum et al. 2014, Peterson et al. 2017]. The Co complexes were chosen to be formally substitution-inert and/or have the potential for covalent binding to the biomolecule. Using both indirect competitive inhibition assays and direct mass spectrometric assays, formally substitution-inert complexes bound to FPX with protection from multiple sulfate loss in the gas phase through metalloshielding. Covalent binding of Co-Cl complexes as in [CoCl(NH3)5]2+ and cis-[CoCl2(en)2]+ was confirmed by mass spectrometry. Interestingly, the former complex was shown to be an effective inhibitor of bacterial heparinase enzyme activity and to inhibit heparanase-dependent cellular invasion through the extracellular matrix (ECM). Pursuing the theme of metalloglycomics, we have observed the hitherto unappreciated biological activity of the simple [CoCl(NH3)5]2+ compound, a staple of most inorganic chemistry lab curricula.
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Affiliation(s)
- Jessica M Christian
- Department of Chemistry, Virginia Commonwealth University, 1001 W Main St, Richmond, VA 23284, United States of America
| | - Mary Zoepfl
- Department of Chemistry, Virginia Commonwealth University, 1001 W Main St, Richmond, VA 23284, United States of America
| | - Wyatt E Johnson
- Massey Cancer Center, Virginia Commonwealth University, 1300 E Marshall Street, Richmond, VA 23298-0037, United States of America
| | - Eric Ginsburg
- Department of Chemistry, Virginia Commonwealth University, 1001 W Main St, Richmond, VA 23284, United States of America
| | - Erica J Peterson
- Massey Cancer Center, Virginia Commonwealth University, 1300 E Marshall Street, Richmond, VA 23298-0037, United States of America
| | - J David Hampton
- Massey Cancer Center, Virginia Commonwealth University, 1300 E Marshall Street, Richmond, VA 23298-0037, United States of America
| | - Nicholas P Farrell
- Department of Chemistry, Virginia Commonwealth University, 1001 W Main St, Richmond, VA 23284, United States of America; Massey Cancer Center, Virginia Commonwealth University, 1300 E Marshall Street, Richmond, VA 23298-0037, United States of America.
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3
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Zoepfl M, Dwivedi R, Kim SB, McVoy MA, Pomin VH. Antiviral activity of marine sulfated glycans against pathogenic human coronaviruses. Sci Rep 2023; 13:4804. [PMID: 36959228 PMCID: PMC10035982 DOI: 10.1038/s41598-023-31722-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/16/2023] [Indexed: 03/25/2023] Open
Abstract
Great interest exists towards the discovery and development of broad-spectrum antivirals. This occurs due to the frequent emergence of new viruses which can also eventually lead to pandemics. A reasonable and efficient strategy to develop new broad-spectrum antivirals relies on targeting a common molecular player of various viruses. Heparan sulfate is a sulfated glycosaminoglycan present on the surface of cells which plays a key role as co-receptor in many virus infections. In previous work, marine sulfated glycans (MSGs) were identified as having antiviral activities. Their mechanism of action relies primarily on competitive inhibition of virion binding to heparan sulfate, preventing virus attachment to the cell surface prior to entry. In the current work we used pseudotyped lentivirus particles to investigate in a comparative fashion the inhibitory properties of five structurally defined MSGs against SARS-CoV-1, SARS-CoV-2, MERS-CoV, and influenza A virus (IAV). MSGs include the disaccharide-repeating sulfated galactan from the red alga Botryocladia occidentalis, the tetrasaccharide-repeating sulfated fucans from the sea urchin Lytechinus variegatus and from the sea cucumber Isostichopus badionotus, and the two marine fucosylated chondroitin sulfates from the sea cucumbers I. badionotus and Pentacta pygmaea. Results indicate specificity of action against SARS-CoV-1 and SARS-CoV-2. Curiously, the MSGs showed decreased inhibitory potencies against MERS-CoV and negligible action against IAV. Among the five MSGs, the two sulfated fucans here studied deserve further attention since they have the lowest anticoagulant effects but still present potent and selective antiviral properties.
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Affiliation(s)
- Mary Zoepfl
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Rohini Dwivedi
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA
| | - Seon Beom Kim
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA
- Department of Food Science and Technology, College of Natural Resources and Life Science, Pusan National University, Miryang, 50463, Republic of Korea
| | - Michael A McVoy
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298, USA.
| | - Vitor H Pomin
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA.
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4
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Bao J, He Y, Yang C, Lu N, Li A, Gao S, Hosyanto FF, Tang J, Si J, Tang X, Fu H, Xu L. Inhibition of mycobacteria proliferation in macrophages by low cisplatin concentration through phosphorylated p53-related apoptosis pathway. PLoS One 2023; 18:e0281170. [PMID: 36719870 PMCID: PMC9888694 DOI: 10.1371/journal.pone.0281170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/16/2023] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Drug resistance is a prominent problem in the treatment of tuberculosis, so it is urgent to develop new anti- tuberculosis drugs. Here, we investigated the effects and mechanisms of cisplatin (DDP) on intracellular Mycobacterium smegmatis to tap the therapeutic potential of DDP in mycobacterial infection. RESULTS Macrophages infected with Mycobacterium smegmatis were treated with DDP alone or combined with isoniazid or rifampicin. The results showed that the bacterial count in macrophages decreased significantly after DDP (≤ 6 μg/mL) treatment. When isoniazid or rifampicin was combined with DDP, the number of intracellular mycobacteria was also significantly lower than that of isoniazid or rifampicin alone. Apoptosis of infected cells increased after 24 h of DDP treatment, as shown by flow cytometry and transmission electron microscopy detection. Transcriptome sequencing showed that there were 1161 upregulated and 645 downregulated differentially expressed genes (DEGs) between the control group and DDP treatment group. A Trp53-centered protein interaction network was found based on the top 100 significant DEGs through STRING and Cytoscape software. The expression of phosphorylated p53, Bax, JAK, p38 MAPK and PI3K increased after DDP treatment, as shown by Western blot analysis. Inhibitors of JAK, PI3K or p38 MAPK inhibited the increase in cell apoptosis and the reduction in the intracellular bacterial count induced by DDP. The p53 promoter Kevetrin hydrochloride scavenges intracellular mycobacteria. If combined with DDP, Kevetrin hydrochloride could increase the effect of DDP on the elimination of intracellular mycobacteria. In conclusion, DDP at low concentrations could activate the JAK, p38 MAPK and PI3K pathways in infected macrophages, promote the phosphorylation of p53 protein, and increase the ratio of Bax to Bcl-2, leading to cell apoptosis, thus eliminating intracellular bacteria and reducing the spread of mycobacteria. CONCLUSION DDP may be a new host-directed therapy for tuberculosis treatment, as well as the p53 promoter Kevetrin hydrochloride.
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Affiliation(s)
- Jiajia Bao
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
- Hospital-Acquired Infection Control Department, First People’s Hospital of Jintang County, Chengdu, China
| | - Yonglin He
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Chun Yang
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Nan Lu
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Anlong Li
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Sijia Gao
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | | | - Jialing Tang
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Junzhuo Si
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Xia Tang
- Clinical laboratory, People’s Hospital of Rongchang District, Chongqing, China
| | - Huichao Fu
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
| | - Lei Xu
- Department of Pathogenic Biology, College of Basic Medicine, Chongqing Medical University, Chongqing, China
- * E-mail:
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Aires RL, Santos IA, Fontes JV, Bergamini FRG, Jardim ACG, Abbehausen C. Triphenylphosphine gold(I) derivatives promote antiviral effects against the Chikungunya virus. METALLOMICS : INTEGRATED BIOMETAL SCIENCE 2022; 14:6650674. [PMID: 35894863 DOI: 10.1093/mtomcs/mfac056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/11/2022] [Indexed: 11/14/2022]
Abstract
Herein a systematic series of four [AuLL']n+ n = 0, +1 complexes, where L = 1,3-bis(mesityl)imidazole-2-ylidene (IMes), or triphenylphosphine (PPh3), and L' = chloride, or 4-dimethylaminopyridine (DMAP), had their in vitro antiviral activity assessed against Chikungunya virus (CHIKV). The PPh3 derivatives inhibited viral replication by 99%, whereas the IMes derivatives about 50%. The lipophilicity of the PPh3 derivatives is higher than the IMes-bearing compounds, which can be related to their more prominent antiviral activities. The dissociation of DMAP is faster than chloride in solution for both IMes and PPh3 derivatives; however, it does not significantly affect their in vitro activities, showing a higher dependence on the nature of L rather than L' towards their antiviral effects. All complexes bind to N-acetyl-L-cysteine, with the Ph3P-bearing complexes coordinating at a faster rate to this amino acid. The binding constants to bovine serum albumin (BSA) are in the order of 104, slightly higher for the DMAP complexes in both PPh3 and IMes derivatives. Mechanistic investigations of the PPh3 complexes showed a ubiquitous protective effect of the compounds in the pre-treatment, early stages, and post-entry assays. The most significant inhibition was observed in post-entry activity, in which the complexes blocked viral replication in 99%, followed by up to 95% inhibition of the early stages of infection. Pre-treatment assays showed a 92% and 80% replication decrease for the chloride and DMAP derivatives, respectively. dsRNA binding assays showed a significant interaction of the compounds with dsRNA, an essential biomolecule to viral replication.
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Affiliation(s)
- Rochanna L Aires
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP, 13083-871, Brazil
| | - Igor A Santos
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil
| | - Josielle V Fontes
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP, 13083-871, Brazil
| | - Fernando R G Bergamini
- Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlândia, MG 38408-100, Brazil.,Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Ana Carolina G Jardim
- Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil.,Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Campus São José do Rio Preto, São José do Rio Preto, SP, Brazil
| | - Camilla Abbehausen
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP, 13083-871, Brazil
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7
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Rosa NMP, Ferreira FHDC, Farrell NP, Costa LAS. Substitution-inert polynuclear platinum complexes and Glycosaminoglycans: A molecular dynamics study of its non-covalent interactions. J Inorg Biochem 2022; 232:111811. [DOI: 10.1016/j.jinorgbio.2022.111811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/17/2022] [Accepted: 03/25/2022] [Indexed: 10/18/2022]
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8
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Santos IA, Pereira AKDS, Guevara-Vega M, de Paiva REF, Sabino-Silva R, Bergamini FRG, Corbi PP, Jardim ACG. Repurposing potential of rimantadine hydrochloride and development of a promising platinum(II)-rimantadine metallodrug for the treatment of Chikungunya virus infection. Acta Trop 2022; 227:106300. [PMID: 34979144 DOI: 10.1016/j.actatropica.2021.106300] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/23/2021] [Accepted: 12/29/2021] [Indexed: 11/15/2022]
Abstract
Most of the patients infected with Chikungunya virus (CHIKV) develop chronic manifestations characterized by pain and deformity in joints, impacting their quality of life. The aminoadamantanes, in their turn, have been exploited due to their biological activities, with amantadine and memantine recently described with anti-CHIKV activities. Here we evaluated the antiviral activity of rimantadine hydrochloride (rtdH), a well-known antiviral agent against influenza A, its platinum complex (Pt-rtd), and the precursor cis-[PtCl2(dmso)2], against CHIKV infection in vitro. The rtdH demonstrated significant antiviral activity in all stages of CHIKV replication (29% in pre-treatment; 57% in early stages of infection; 60% in post-entry stages). The Pt-rtd complex protected the cells against infection in 92%, inhibited 100% of viral entry, mainly by a virucidal effect, and impaired 60% of post-entry stages. Alternatively, cis-[PtCl2(dmso)2] impaired viral entry in 100% and post-entry steps in 60%, but had no effect in protecting cells when administered prior to CHIKV infection. Collectively, the obtained data demonstrated that rtdH and Pt-rtd significantly interfered in the early stages of CHIKV life cycle, with the strongest effect observed to Pt-rtd complex, which reduced up to 100% of CHIKV infection. Moreover, molecular docking analysis and infrared spectroscopy data (ATR-FTIR) suggest an interaction of Pt-rtd with CHIKV glycoproteins, potentially related to the mechanism of inhibition of viral entry by Pt-rtd. Through a migration retardation assay, it was also shown that Pt-rtd and cis-[PtCl2(dmso)2] interacted with the dsRNA in 87% and 100%, respectively. The obtained results highlight the repurposing potential of rtdH as an anti-CHIKV drug, as well as the synthesis of promising platinum(II) metallodrugs with potential application for the treatment of CHIKV infections. Importance Chikungunya fever is a disease that can result in persistent symptoms due to the chronic infection process. Infected patients can develop physical disability, resulting and high costs to the health system and significant impacts on the quality of life of affected individuals. Additionally, there are no licensed vaccines or antivirals against the Chikungunya virus (CHIKV) and the virus is easily transmitted due to the abundance of viable vectors in epidemic regions. In this context, our study highlights the repurposing potential of the commercial drug rimantadine hydrochloride (rtdH) as an antiviral agent for the treatment of CHIKV infections. Moreover, our data demonstrated that a platinum(II)-rimantadine metallodrug (Pt-rtd) poses as a potent anti-CHIKV molecule with potential application for the treatment of Chikungunya fever. Altogether, rtdH and Pt-rtd significantly interfered in the early stages of CHIKV life cycle, reducing up to 100% of CHIKV infection in vitro.
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Affiliation(s)
- Igor Andrade Santos
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil
| | | | - Marco Guevara-Vega
- Innovation Center in Salivary Diagnostic and Nanotheranostics, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Minas Gerais, Brazil
| | | | - Robinson Sabino-Silva
- Innovation Center in Salivary Diagnostic and Nanotheranostics, Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, Minas Gerais, Brazil
| | - Fernando R G Bergamini
- Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlândia, Uberlândia-MG 34000-902, Brazil.
| | - Pedro P Corbi
- Institute of Chemistry, University of Campinas-UNICAMP, Campinas-SP 13083-871, Brazil.
| | - Ana Carolina G Jardim
- Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia-MG 38405-302, Brazil; Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Campus São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil.
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9
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Comparability of CMV DNA Extraction Methods and Validation of Viral Load. Methods Protoc 2022; 5:mps5010006. [PMID: 35076560 PMCID: PMC8788495 DOI: 10.3390/mps5010006] [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: 11/03/2021] [Revised: 12/06/2021] [Accepted: 12/23/2021] [Indexed: 12/04/2022] Open
Abstract
Human cytomegalovirus is a herpesvirus that has a worldwide seroprevalence of more than 60% of adults in developed countries and 90% in developing countries. Severe disabilities in newborns are characteristic of the human cytomegalovirus congenital infection, and this virus is implicated in graft rejection in transplant patients. To treat and follow-up the infection, the CMVPCR viral loads are required, and the DNA extraction step remains very important; however, the quantity, quality, and purity of extracted DNA from different biological fluids influence the results of PCR amplification, that is why for reliable results, the choice of nucleic acid extraction methods requires careful attention. Materials and methods: In this study, we compare 4 protocols, I (EZ1 DSP Virus kit), II (EZ1 Virus mini kit), III (QIAamp DSP virus kit), and IV (heating); the extractions are made from plasma collected on EDTA tubes, and the concentration of extracted DNA was measured on NanoDrop Lite followed by real-time CMVPCR using an Artus CMV QS-RGQ kit. All protocols are performed following the manufacturer’s instructions. Results: This study is conducted on the samples of 135 transplant patients whose follow-up medical tests related to human cytomegalovirus infection; since most of the CMVPCR results are negative, we have chosen the 10 CMVPCR positive samples and 2 negative samples as controls to conduct this comparison study. By using NanoDrop Lite to evaluate the DNA concentration, the yield of extracted DNA is higher in our heating protocol than other protocols, the EZ1 DSP virus kit and EZ1 Virus mini kit show homogeneous quantities, and the QIAamp DSP virus kit shows very low DNA yields. Comparing cycle threshold and viral loads by real-time PCR, all these protocols identified negative samples (100%), and the previously positive samples used were as follows: protocol IV (90%), protocol II (60%), and protocol I (40%). QIAamp DSP virus kit results were not real-time PCR applicable and were non-conclusive because of the low DNA yields. Conclusion: Our developed heating method (protocol IV) is very effective, reliable, simple, fast, and cheap compared to the other protocols in our study.
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de Paiva RE, Johnson WE, Gorle AK, Berners-Price SJ, Farrell NP. Metalloglycomics of tris(2,2′-bipyridyl) cobalt and ruthenium compounds. J Inorg Biochem 2022; 229:111731. [DOI: 10.1016/j.jinorgbio.2022.111731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 10/19/2022]
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11
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De Castro F, De Luca E, Benedetti M, Fanizzi FP. Platinum compounds as potential antiviral agents. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214276] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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12
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Bailly B, Gorle AK, Dirr L, Malde AK, Farrell NP, Berners-Price SJ, von Itzstein M. Platinum complexes act as shielding agents against virus infection. Chem Commun (Camb) 2021; 57:4666-4669. [PMID: 33977992 DOI: 10.1039/d1cc01593a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We determine that the substitution-inert polynuclear platinum complex (PPC) TriplatinNC is an antiviral agent and protects cells from enterovirus 71 and human metapneumovirus infection. This protection occurs through the formation of adducts with cell-surface glycosaminoglycans. Our detailed mechanistic investigation demonstrates that TriplatinNC blocks viral entry by shielding cells from virus attack, opening new directions for metalloshielding antiviral drug development.
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Affiliation(s)
- Benjamin Bailly
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
| | - Anil K Gorle
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
| | - Larissa Dirr
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
| | - Alpeshkumar K Malde
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
| | - Nicholas P Farrell
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia. and Department of Chemistry, Virginia Commonwealth University, Richmond, VA 23284-2006, USA
| | - Susan J Berners-Price
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
| | - Mark von Itzstein
- Institute for Glycomics, Griffith University Gold Coast Campus, Southport, Queensland, Australia.
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13
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Paiva REF, Peterson EJ, Malina J, Zoepfl M, Hampton JD, Johnson WE, Graminha A, Ourahmane A, McVoy MA, Brabec V, Berners‐Price SJ, Farrell NP. On the Biology of Werner's Complex. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Raphael E. F. Paiva
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
| | - Erica J. Peterson
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
| | - Jaroslav Malina
- Institute of Biophysics Czech Academy of Sciences Kralovopolska 135 61265 Brno Czech Republic
| | - Mary Zoepfl
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - J. David Hampton
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
- Department of Biochemistry and Molecular Biology Virginia Commonwealth University Richmond Virginia 23298-0033 USA
| | - Wyatt E. Johnson
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - Angelica Graminha
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
| | - Amine Ourahmane
- Department of Pediatrics Virginia Commonwealth University Richmond VA 23298-0163 USA
| | - Michael A. McVoy
- Department of Pediatrics Virginia Commonwealth University Richmond VA 23298-0163 USA
| | - Viktor Brabec
- Institute of Biophysics Czech Academy of Sciences Kralovopolska 135 61265 Brno Czech Republic
| | - Susan J. Berners‐Price
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
| | - Nicholas P. Farrell
- Institute for Glycomics Griffith University Gold Coast Campus Southport Qld. 4222 Australia
- Department of Chemistry Virginia Commonwealth University Richmond VA 23284-2006 USA
- Massey Cancer Center Virginia Commonwealth University Richmond VA 23298-0037 USA
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14
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de Paiva REF, Peterson EJ, Malina J, Zoepfl M, Hampton JD, Johnson WE, Graminha A, Ourahmane A, McVoy MA, Brabec V, Berners-Price SJ, Farrell NP. On the Biology of Werner's Complex. Angew Chem Int Ed Engl 2021; 60:17123-17130. [PMID: 34105220 PMCID: PMC8464317 DOI: 10.1002/anie.202105019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/30/2021] [Indexed: 11/05/2022]
Abstract
Werner's Complex, as a cationic coordination complex (CCC), has hitherto unappreciated biological properties derived from its binding affinity to highly anionic biomolecules such as glycosaminoglycans (GAGs) and nucleic acids. Competitive inhibitor and spectroscopic assays confirm the high affinity to GAGs heparin, heparan sulfate (HS), and its pentasaccharide mimetic Fondaparinux (FPX). Functional consequences of this affinity include inhibition of FPX cleavage by bacterial heparinase and mammalian heparanase enzymes with inhibition of cellular invasion and migration. Werner's Complex is a very efficient condensing agent for DNA and tRNA. In proof-of-principle for translational implications, it is demonstrated to display antiviral activity against human cytomegalovirus (HCMV) at micromolar concentrations with promising selectivity. Exploitation of non-covalent hydrogen-bonding and electrostatic interactions has motivated the unprecedented discovery of these properties, opening new avenues of research for this iconic compound.
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Affiliation(s)
- Raphael E F de Paiva
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
| | - Erica J Peterson
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
| | - Jaroslav Malina
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, 61265, Brno, Czech Republic
| | - Mary Zoepfl
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - J David Hampton
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia, 23298-0033, USA
| | - Wyatt E Johnson
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - Angelica Graminha
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
| | - Amine Ourahmane
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298-0163, USA
| | - Michael A McVoy
- Department of Pediatrics, Virginia Commonwealth University, Richmond, VA, 23298-0163, USA
| | - Viktor Brabec
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, 61265, Brno, Czech Republic
| | - Susan J Berners-Price
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
| | - Nicholas P Farrell
- Institute for Glycomics, Griffith University, Gold Coast Campus, Southport, Qld., 4222, Australia
- Department of Chemistry, Virginia Commonwealth University, Richmond, VA, 23284-2006, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, 23298-0037, USA
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15
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Zoepfl M, Dwivedi R, Taylor MC, Pomin VH, McVoy MA. Antiviral activities of four marine sulfated glycans against adenovirus and human cytomegalovirus. Antiviral Res 2021; 190:105077. [PMID: 33864843 DOI: 10.1016/j.antiviral.2021.105077] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/17/2022]
Abstract
Broad-spectrum antivirals are more needed than ever to provide treatment options for novel emerging viruses and for viruses that lack therapeutic options or have developed resistance. A large number of viruses rely on charge-dependent non-specific interactions with heparan sulfate (HS), a highly sulfated glycosaminoglycan (GAG), for attachment to cell surfaces to initiate cell entry. As such, inhibitors targeting virion-HS interactions have potential to have broad-spectrum antiviral activity. Previous research has explored organic and inorganic small molecules, peptides, and GAG mimetics to disrupt virion-HS interactions. Here we report antiviral activities against both enveloped (the herpesvirus human cytomegalovirus) and non-enveloped (adenovirus) DNA viruses for four defined marine sulfated glycans: a sulfated galactan from the red alga Botryocladia occidentalis; a sulfated fucan from the sea urchin Lytechinus variegatus, and a sulfated fucan and a fucosylated chondroitin sulfate from the sea cucumber Isostichopus badionotus. As evidenced by gene expression, time of addition, and treatment/removal assays, all four novel glycans inhibited viral attachment and entry, most likely through interactions with virions. The sulfated fucans, which both lack anticoagulant activity, had similar antiviral profiles, suggesting that their activities are not only due to sulfation content or negative charge density but also due to other physicochemical factors such as the potential conformational shapes of these carbohydrates in solution and upon interaction with virion proteins. The structural and chemical properties of these marine sulfated glycans provide unique opportunities to explore relationships between glycan structure and their antiviral activities.
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Affiliation(s)
- Mary Zoepfl
- Department of Chemistry, Virginia Commonwealth University, 1001 W Main St, Richmond, VA, 23284, USA
| | - Rohini Dwivedi
- Department of BioMolecular Sciences, University of Mississippi, 417A Faser Hall University, MS, 38677-1848, USA
| | - Maggie C Taylor
- Department of BioMolecular Sciences, University of Mississippi, 417A Faser Hall University, MS, 38677-1848, USA
| | - Vitor H Pomin
- Department of BioMolecular Sciences, University of Mississippi, 417A Faser Hall University, MS, 38677-1848, USA.
| | - Michael A McVoy
- Department of Pediatrics, Virginia Commonwealth University, 1101 E. Marshall Street, Richmond, VA, 23298-0163, USA.
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