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Saha C, Naskar R, Chakraborty S. Antiviral Flavonoids: A Natural Scaffold with Prospects as Phytomedicines against SARS-CoV2. Mini Rev Med Chem 2024; 24:39-59. [PMID: 37138419 DOI: 10.2174/1389557523666230503105053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/01/2023] [Accepted: 03/13/2023] [Indexed: 05/05/2023]
Abstract
Flavonoids are vital candidates to fight against a wide range of pathogenic microbial infections. Due to their therapeutic potential, many flavonoids from the herbs of traditional medicine systems are now being evaluated as lead compounds to develop potential antimicrobial hits. The emergence of SARS-CoV-2 caused one of the deadliest pandemics that has ever been known to mankind. To date, more than 600 million confirmed cases of SARS-CoV2 infection have been reported worldwide. Situations are worse due to the unavailability of therapeutics to combat the viral disease. Thus, there is an urgent need to develop drugs against SARS-CoV2 and its emerging variants. Here, we have carried out a detailed mechanistic analysis of the antiviral efficacy of flavonoids in terms of their potential targets and structural feature required for exerting their antiviral activity. A catalog of various promising flavonoid compounds has been shown to elicit inhibitory effects against SARS-CoV and MERS-CoV proteases. However, they act in the high-micromolar regime. Thus a proper leadoptimization against the various proteases of SARS-CoV2 can lead to high-affinity SARS-CoV2 protease inhibitors. To enable lead optimization, a quantitative structure-activity relationship (QSAR) analysis has been developed for the flavonoids that have shown antiviral activity against viral proteases of SARS-CoV and MERS-CoV. High sequence similarities between coronavirus proteases enable the applicability of the developed QSAR to SARS-CoV2 proteases inhibitor screening. The detailed mechanistic analysis of the antiviral flavonoids and the developed QSAR models is a step forward toward the development of flavonoid-based therapeutics or supplements to fight against COVID-19.
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Affiliation(s)
- Chiranjeet Saha
- Amity Institute of Biotechnology, Amity University, Kolkata, 700135, India
| | - Roumi Naskar
- Amity Institute of Biotechnology, Amity University, Kolkata, 700135, India
| | - Sandipan Chakraborty
- Center for Innovation in Molecular and Pharmaceutical Sciences (CIMPS), Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad, 500046, India
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Knoll R, Bonaguro L, dos Santos JC, Warnat-Herresthal S, Jacobs-Cleophas MCP, Blümel E, Reusch N, Horne A, Herbert M, Nuesch-Germano M, Otten T, van der Heijden WA, van de Wijer L, Shalek AK, Händler K, Becker M, Beyer MD, Netea MG, Joosten LAB, van der Ven AJAM, Schultze JL, Aschenbrenner AC. Identification of drug candidates targeting monocyte reprogramming in people living with HIV. Front Immunol 2023; 14:1275136. [PMID: 38077315 PMCID: PMC10703486 DOI: 10.3389/fimmu.2023.1275136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/18/2023] [Indexed: 12/18/2023] Open
Abstract
Introduction People living with HIV (PLHIV) are characterized by functional reprogramming of innate immune cells even after long-term antiretroviral therapy (ART). In order to assess technical feasibility of omics technologies for application to larger cohorts, we compared multiple omics data layers. Methods Bulk and single-cell transcriptomics, flow cytometry, proteomics, chromatin landscape analysis by ATAC-seq as well as ex vivo drug stimulation were performed in a small number of blood samples derived from PLHIV and healthy controls from the 200-HIV cohort study. Results Single-cell RNA-seq analysis revealed that most immune cells in peripheral blood of PLHIV are altered in their transcriptomes and that a specific functional monocyte state previously described in acute HIV infection is still existing in PLHIV while other monocyte cell states are only occurring acute infection. Further, a reverse transcriptome approach on a rather small number of PLHIV was sufficient to identify drug candidates for reversing the transcriptional phenotype of monocytes in PLHIV. Discussion These scientific findings and technological advancements for clinical application of single-cell transcriptomics form the basis for the larger 2000-HIV multicenter cohort study on PLHIV, for which a combination of bulk and single-cell transcriptomics will be included as the leading technology to determine disease endotypes in PLHIV and to predict disease trajectories and outcomes.
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Affiliation(s)
- Rainer Knoll
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Lorenzo Bonaguro
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Jéssica C. dos Santos
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Stefanie Warnat-Herresthal
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Maartje C. P. Jacobs-Cleophas
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Edda Blümel
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Nico Reusch
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Arik Horne
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Systems Hematology, Stem Cells & Precision Medicine, Max Delbrück Center - Berlin Institute for Medical Systems Biology (MDCBIMSB), Berlin, Germany
| | - Miriam Herbert
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- In Vivo Cell Biology of Infection, Max Planck Institute for Infection Biology (MPIIB), Berlin, Germany
| | - Melanie Nuesch-Germano
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Twan Otten
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Wouter A. van der Heijden
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Lisa van de Wijer
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Alex K. Shalek
- Broad Institute at Massachusetts Institute of Technology (MIT) and Harvard, Boston, MA, United States
- Ragon Institute of Mass General Hospital (MGH), MIT, and Harvard, Cambridge, MA, United States
- Department of Chemistry, Institute for Medical Engineering and Science, Koch Institute, Cambridge, MA, United States
| | - Kristian Händler
- Platform for Single Cell Genomics and Epigenomics (PRECISE), DZNE and University of Bonn, Bonn, Germany
- Institute for Human Genetics, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Matthias Becker
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
| | - Marc D. Beyer
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Platform for Single Cell Genomics and Epigenomics (PRECISE), DZNE and University of Bonn, Bonn, Germany
| | - Mihai G. Netea
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
- Immunology and Metabolism, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Leo A. B. Joosten
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Andre J. A. M. van der Ven
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands
- Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
| | - Joachim L. Schultze
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
- Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
- Platform for Single Cell Genomics and Epigenomics (PRECISE), DZNE and University of Bonn, Bonn, Germany
| | - Anna C. Aschenbrenner
- Systems Medicine, Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Bonn, Germany
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Casarrubios L, Cicuéndez M, Vallet-Regí M, Portolés MT, Arcos D, Feito MJ. Osteoimmune Properties of Mesoporous Bioactive Nanospheres: A Study on T Helper Lymphocytes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2183. [PMID: 37570501 PMCID: PMC10421130 DOI: 10.3390/nano13152183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
Bioactive mesoporous glass nanospheres (nanoMBGs) charged with antiosteoporotic drugs have great potential for the treatment of osteoporosis and fracture prevention. In this scenario, cells of the immune system are essential both in the development of disease and in their potential to stimulate therapeutic effects. In the present work, we hypothesize that nanoMBGs loaded with ipriflavone can exert a positive osteoimmune effect. With this objective, we assessed the effects of non-loaded and ipriflavone-loaded nanoparticles (nanoMBGs and nanoMBG-IPs, respectively) on CD4+ Th2 lymphocytes because this kind of cell is implicated in the inhibition of osseous loss by reducing the RANKL/OPG relationship through the secretion of cytokines. The results indicate that nanoMBGs enter efficiently in CD4+ Th2 lymphocytes, mainly through phagocytosis and clathrin-dependent mechanisms, without affecting the function of these T cells or inducing inflammatory mediators or oxidative stress, thus maintaining the reparative Th2 phenotype. Furthermore, the incorporation of the anti-osteoporotic drug ipriflavone reduces the potential unwanted inflammatory response by decreasing the presence of ROS and stimulating intracellular anti-inflammatory cytokine release like IL-4. These results evidenced that nanoMBG loaded with ipriflavone exerts a positive osteoimmune effect.
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Affiliation(s)
- Laura Casarrubios
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain; (L.C.); (M.T.P.)
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain;
| | - Mónica Cicuéndez
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain;
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - María Vallet-Regí
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain;
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, 28040 Madrid, Spain
| | - María Teresa Portolés
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain; (L.C.); (M.T.P.)
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain;
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, ISCIII, 28040 Madrid, Spain
| | - Daniel Arcos
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain;
- Instituto de Investigación Sanitaria Hospital 12 de Octubre i+12, 28040 Madrid, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, ISCIII, 28040 Madrid, Spain
| | - María José Feito
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain; (L.C.); (M.T.P.)
- Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain;
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Tale of Viruses in Male Infertility. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1358:275-323. [PMID: 35641875 DOI: 10.1007/978-3-030-89340-8_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Male infertility is a condition where the males either become sterile or critically infertile. The World Health Organisation assessed that approximately 9% of the couple have fertility issues where the contribution of the male partner was estimated to be 50%. There are several factors that can amalgamate to give rise to male infertility. Among them are lifestyle factors, genetic factors and as well as several environmental factors. The causes of male infertility may be acquired, congenital or sometimes idiopathic. All these factors adversely affect the spermatogenesis process as well as they impart serious threats to male genital organs thus resulting in infertility. Viruses are submicroscopic pathogenic agents that rely on host for their replication and survival. They enter the host cell, hijack the host cell machinery to aid their own replication and exit the cell for a new round of infection. With the growing abundance of different types of viruses and the havoc they have stirred in the form of pandemics, it is very essential to decipher their route of entry inside the human body and understand their diverse functional roles in order to combat them. In this chapter, we will review how viruses invade the male genital system thus in turn leading to detrimental consequence on male fertility. We will discuss the tropism of various viruses in the male genital organs and explore their sexual transmissibility. This chapter will summarise the functional and mechanistic approaches employed by the viruses in inducing oxidative stress inside spermatozoa thus leading to male infertility. Moreover, we will also highlight the various antiviral therapies that have been studied so far in order to ameliorate viral infection in order to combat the harmful consequences leading to male infertility.
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5
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Prestimulation of CD2 confers resistance to HIV-1 latent infection in blood resting CD4 T cells. iScience 2021; 24:103305. [PMID: 34765923 PMCID: PMC8571718 DOI: 10.1016/j.isci.2021.103305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/08/2021] [Accepted: 10/15/2021] [Indexed: 12/23/2022] Open
Abstract
HIV-1 infects blood CD4 T cells through the use of CD4 and CXCR4 or CCR5 receptors, which can be targeted through blocking viral binding to CD4/CXCR4/CCR5 or virus-cell fusion. Here we describe a novel mechanism by which HIV-1 nuclear entry can also be blocked through targeting a non-entry receptor, CD2. Cluster of differentiation 2 (CD2) is an adhesion molecule highly expressed on human blood CD4, particularly, memory CD4 T cells. We found that CD2 ligation with its cell-free ligand LFA-3 or anti-CD2 antibodies rendered blood resting CD4 T cells highly resistant to HIV-1 infection. We further demonstrate that mechanistically, CD2 binding initiates competitive signaling leading to cofilin activation and localized actin polymerization around CD2, which spatially inhibits HIV-1-initiated local actin polymerization needed for viral nuclear migration. Our study identifies CD2 as a novel target to block HIV-1 infection of blood resting T cells. CD2 is highly expressed on human blood CD4 T cells, particularly memory T cells Prestimulation of CD2 rendered resting T cells highly resistant to HIV infection CD2 signaling activates cofilin and actin polymerization blocking HIV nuclear entry CD2 may serve as a novel target to inhibit HIV-1 infection of blood resting T cells
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6
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Sharma V, Sehrawat N, Sharma A, Yadav M, Verma P, Sharma AK. Multifaceted antiviral therapeutic potential of dietary flavonoids: Emerging trends and future perspectives. Biotechnol Appl Biochem 2021; 69:2028-2045. [PMID: 34586691 DOI: 10.1002/bab.2265] [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: 06/21/2021] [Accepted: 09/24/2021] [Indexed: 12/30/2022]
Abstract
Phytochemicals are the natural biomolecules produced by plants via primary or secondary metabolism, which have been known to have many potential health benefits to human beings. Flavonoids or phytoestrogens constitute a major group of such phytochemicals widely available in variety of vegetables, fruits, herbs, tea, and so forth, implicated in a variety of bio-pharmacological and biochemical activities against diseases including bacterial, viral, cancer, inflammatory, and autoimmune disorders. More recently, these natural biomolecules have been shown to have effective antiviral properties via therapeutically active ingredients within them, acting at different stages of infection. Current review emphasizes upon the role of these flavonoids in physiological functions, prevention and treatment of viral diseases. More so the review focuses specifically upon the antiviral effects exhibited by these natural biomolecules against RNA viruses including coronaviruses. Furthermore, the article would certainly provide a lead to the scientific community for the effective therapeutic antiviral use of flavonoids using potential cost-effective tools for improvement of the pharmacokinetics, bioavailability, and biodistribution of such compounds for the concrete action along with the promotion of human health.
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Affiliation(s)
- Varruchi Sharma
- Department of Biotechnology, Sri Guru Gobind Singh College, Chandigarh, India
| | - Nirmala Sehrawat
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
| | - Ajay Sharma
- Department of Chemistry, Career Point University, Hamirpur, Himachal Pradesh, India
| | - Mukesh Yadav
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
| | - Pawan Verma
- Institute of Plant Sciences, Agricultural Research Organization (ARO), Rishon LeZion, Israel
| | - Anil K Sharma
- Department of Biotechnology, Maharishi Markandeshwar, Ambala, Haryana, India
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7
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Wang Z, Yin X, Ma M, Ge H, Lang B, Sun H, He S, Fu Y, Sun Y, Yu X, Zhang Z, Cui H, Han X, Xu J, Ding H, Chu Z, Shang H, Wu Y, Jiang Y. IP-10 Promotes Latent HIV Infection in Resting Memory CD4 + T Cells via LIMK-Cofilin Pathway. Front Immunol 2021; 12:656663. [PMID: 34447368 PMCID: PMC8383741 DOI: 10.3389/fimmu.2021.656663] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 07/15/2021] [Indexed: 12/31/2022] Open
Abstract
A major barrier to HIV eradication is the persistence of viral reservoirs. Resting CD4+ T cells are thought to be one of the major viral reservoirs, However, the underlying mechanism regulating HIV infection and the establishment of viral reservoir in T cells remain poorly understood. We have investigated the role of IP-10 in the establishment of HIV reservoirs in CD4+ T cells, and found that in HIV-infected individuals, plasma IP-10 was elevated, and positively correlated with HIV viral load and viral reservoir size. In addition, we found that binding of IP-10 to CXCR3 enhanced HIV latent infection of resting CD4+ T cells in vitro. Mechanistically, IP-10 stimulation promoted cofilin activity and actin dynamics, facilitating HIV entry and DNA integration. Moreover, treatment of resting CD4+ T cells with a LIM kinase inhibitor R10015 blocked cofilin phosphorylation and abrogated IP-10-mediated enhancement of HIV latent infection. These results suggest that IP-10 is a critical factor involved in HIV latent infection, and that therapeutic targeting of IP-10 may be a potential strategy for inhibiting HIV latent infection.
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Affiliation(s)
- Zhuo Wang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China.,Department of Clinical Laboratory, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaowan Yin
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Meichen Ma
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hongchi Ge
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Bin Lang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hong Sun
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Sijia He
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China.,National Center for Biodefense and Infectious Diseases, School of Systems Biology, George Mason University, Manassas, VA, United States
| | - Yajing Fu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yu Sun
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaowen Yu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zining Zhang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hualu Cui
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaoxu Han
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Junjie Xu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Haibo Ding
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Zhenxing Chu
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hong Shang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yuntao Wu
- National Center for Biodefense and Infectious Diseases, School of Systems Biology, George Mason University, Manassas, VA, United States
| | - Yongjun Jiang
- NHC Key Laboratory of AIDS Immunology (China Medical University), National Clinical Research Center for Laboratory Medicine, The First Affiliated Hospital of China Medical University, Shenyang, China
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8
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He S, Wu Y. Relationships Between HIV-Mediated Chemokine Coreceptor Signaling, Cofilin Hyperactivation, Viral Tropism Switch and HIV-Mediated CD4 Depletion. Curr HIV Res 2021; 17:388-396. [PMID: 31702526 DOI: 10.2174/1570162x17666191106112018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/27/2019] [Accepted: 10/31/2019] [Indexed: 11/22/2022]
Abstract
HIV infection causes CD4 depletion and immune deficiency. The virus infects CD4 T cells through binding to CD4 and one of the chemokine coreceptors, CXCR4 (X4) or CCR5 (R5). It has also been known that HIV tropism switch, from R5 to X4, is associated with rapid CD4 depletion, suggesting a key role of viral factors in driving CD4 depletion. However, the virological driver for HIV-mediated CD4 depletion has not been fully elucidated. We hypothesized that HIV-mediated chemokine coreceptor signaling, particularly chronic signaling through CXCR4, plays a major role in CD4 dysfunction and depletion; we also hypothesized that there is an R5X4 signaling (R5X4sig) viral subspecies, evolving from the natural replication course of R5-utilizing viruses, that is responsible for CD4 T cell depletion in R5 virus infection. To gain traction for our hypothesis, in this review, we discuss a recent finding from Cui and co-authors who described the rapid tropism switch and high pathogenicity of an HIV-1 R5 virus, CRF01_AE. We speculate that CRF01_AE may be the hypothetical R5X4sig viral species that is rapidly evolving towards the X4 phenotype. We also attempt to discuss the intricate relationships between HIV-mediated chemokine coreceptor signaling, viral tropism switch and HIV-mediated CD4 depletion, in hopes of providing a deeper understanding of HIV pathogenesis in blood CD4 T cells.
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Affiliation(s)
- Sijia He
- National Center for Biodefense and Infectious Diseases, School of Systems Biology, George Mason University, Manassas, Virginia, United States
| | - Yuntao Wu
- National Center for Biodefense and Infectious Diseases, School of Systems Biology, George Mason University, Manassas, Virginia, United States
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Patil VM, Singhal S, Masand N. A systematic review on use of aminoquinolines for the therapeutic management of COVID-19: Efficacy, safety and clinical trials. Life Sci 2020; 254:117775. [PMID: 32418894 PMCID: PMC7211740 DOI: 10.1016/j.lfs.2020.117775] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 05/07/2020] [Indexed: 01/08/2023]
Abstract
Recent global outbreak of the pandemic caused by coronavirus (COVID-19) emphasizes the urgent need for novel antiviral therapeutics. It can be supplemented by utilization of efficient and validated drug discovery approaches such as drug repurposing/repositioning. The well reported and clinically used anti-malarial aminoquinoline drugs (chloroquine and hydroxychloroquine) have shown potential to be repurposed to control the present pandemic by inhibition of COVID-19. The review elaborates the mechanism of action, safety (side effects, adverse effects, toxicity) and details of clinical trials for chloroquine and hydroxychloroquine to benefit the clinicians, medicinal chemist, pharmacologist actively involved in controlling the pandemic and to provide therapeutics for the treatment of COVID-19 infection.
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Affiliation(s)
- Vaishali M Patil
- Computer Aided Drug Design Lab, KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, India.
| | - Shipra Singhal
- Computer Aided Drug Design Lab, KIET School of Pharmacy, KIET Group of Institutions, Delhi-NCR, Ghaziabad, India
| | - Neeraj Masand
- Department of Pharmacy, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh, India
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10
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O'Donovan SM, Eby H, Henkel ND, Creeden J, Imami A, Asah S, Zhang X, Wu X, Alnafisah R, Taylor RT, Reigle J, Thorman A, Shamsaei B, Meller J, McCullumsmith RE. Identification of new drug treatments to combat COVID19: A signature-based approach using iLINCS. RESEARCH SQUARE 2020:rs.3.rs-25643. [PMID: 32702077 PMCID: PMC7336712 DOI: 10.21203/rs.3.rs-25643/v1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
The COVID-19 pandemic caused by the novel SARS-CoV-2 is more contagious than other coronaviruses and has higher rates of mortality than influenza. As no vaccine or drugs are currently approved to specifically treat COVID-19, identification of effective therapeutics is crucial to treat the afflicted and limit disease spread. We deployed a bioinformatics workflow to identify candidate drugs for the treatment of COVID-19. Using an "omics" repository, the Library of Integrated Network-Based Cellular Signatures (LINCS), we simultaneously probed transcriptomic signatures of putative COVID-19 drugs and signatures of coronavirus-infected cell lines to identify therapeutics with concordant signatures and discordant signatures, respectively. Our findings include three FDA approved drugs that have established antiviral activity, including protein kinase inhibitors, providing a promising new category of candidates for COVID-19 interventions.
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Mirani A, Kundaikar H, Velhal S, Patel V, Bandivdekar A, Degani M, Patravale V. Evaluation of Phytopolyphenols for their gp120-CD4 Binding Inhibitory Properties by In Silico Molecular Modelling & In Vitro Cell Line Studies. Curr HIV Res 2019; 17:102-113. [DOI: 10.2174/1570162x17666190611121627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/22/2019] [Accepted: 05/27/2019] [Indexed: 12/31/2022]
Abstract
Background:Lack of effective early-stage HIV-1 inhibitor instigated the need for screening of novel gp120-CD4 binding inhibitor. Polyphenols, a secondary metabolite derived from natural sources are reported to have broad spectrum HIV-1 inhibitory activity. However, the gp120-CD4 binding inhibitory activity of polyphenols has not been analysed in silico yet.Objectives:To establish the usage of phytopolyphenols (Theaflavin, Epigallocatechin (EGCG), Ellagic acid and Gallic acid) as early stage HIV-1 inhibitor by investigating their binding mode in reported homology of gp120-CD4 receptor complex using in silico screening studies and in vitro cell line studies.Methods:The in silico molecular docking and molecular simulation studies were performed using Schrödinger 2013-2 suite installed on Fujitsu Celsius Workstation. The in vitro cell line studies were performed in the TZM-bl cell line using MTT assay and β-galactosidase assay.Results:The results of molecular docking indicated that Theaflavin and EGCG exhibited high XP dock score with binding pose exhibiting Van der Waals interaction and hydrophobic interaction at the deeper site in the Phe43 cavity with Asp368 and Trp427. Both Theaflavin and EGCG form a stable complex with the prepared HIV-1 receptor and their binding mode interaction is within the vicinity 4 Å. Further, in vitro cell line studies also confirmed that Theaflavin (SI = 252) and EGCG (SI = 138) exert better HIV-1 inhibitory activity as compared to Ellagic acid (SI = 30) and Gallic acid (SI = 34).Conclusions:The results elucidate a possible binding mode of phytopolyphenols, which pinpoints their plausible mechanism and directs their usage as early stage HIV-1 inhibitor.
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Affiliation(s)
- Amit Mirani
- Department of Pharmaceutical Science & Technology, Institute of Chemical Technology, Mumbai-400019, India
| | - Harish Kundaikar
- Department of Pharmaceutical Science & Technology, Institute of Chemical Technology, Mumbai-400019, India
| | - Shilpa Velhal
- Department of Biochemistry & Virology, National Institute for Research in Reproductive Health (ICMR), Mumbai- 400012, India
| | - Vainav Patel
- Department of Biochemistry & Virology, National Institute for Research in Reproductive Health (ICMR), Mumbai- 400012, India
| | - Atmaram Bandivdekar
- Department of Biochemistry & Virology, National Institute for Research in Reproductive Health (ICMR), Mumbai- 400012, India
| | - Mariam Degani
- Department of Pharmaceutical Science & Technology, Institute of Chemical Technology, Mumbai-400019, India
| | - Vandana Patravale
- Department of Pharmaceutical Science & Technology, Institute of Chemical Technology, Mumbai-400019, India
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12
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García-Serradilla M, Risco C, Pacheco B. Drug repurposing for new, efficient, broad spectrum antivirals. Virus Res 2019; 264:22-31. [PMID: 30794895 PMCID: PMC7114681 DOI: 10.1016/j.virusres.2019.02.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 12/26/2022]
Abstract
Emerging viruses are a major threat to human health. Recent outbreaks have emphasized the urgent need for new antiviral treatments. For several pathogenic viruses, considerable efforts have focused on vaccine development. However, during epidemics infected individuals need to be treated urgently. High-throughput screening of clinically tested compounds provides a rapid means to identify undiscovered, antiviral functions for well-characterized therapeutics. Repurposed drugs can bypass part of the early cost and time needed for validation and authorization. In this review we describe recent efforts to find broad spectrum antivirals through drug repurposing. We have chosen several candidates and propose strategies to understand their mechanism of action and to determine how resistance to antivirals develops in infected cells.
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Affiliation(s)
- Moisés García-Serradilla
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain
| | - Cristina Risco
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain.
| | - Beatriz Pacheco
- Cell Structure Laboratory, National Center for Biotechnology, National Research Council, CNB-CSIC, Darwin 3, UAM, campus de Cantoblanco, 28049 Madrid, Spain.
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13
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Arabyan E, Hakobyan A, Kotsinyan A, Karalyan Z, Arakelov V, Arakelov G, Nazaryan K, Simonyan A, Aroutiounian R, Ferreira F, Zakaryan H. Genistein inhibits African swine fever virus replication in vitro by disrupting viral DNA synthesis. Antiviral Res 2018; 156:128-137. [PMID: 29940214 PMCID: PMC7127377 DOI: 10.1016/j.antiviral.2018.06.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 01/07/2023]
Abstract
African swine fever virus (ASFV) is the causal agent of a highly-contagious and fatal disease of domestic pigs, leading to serious socio-economic consequences in affected countries. Once, neither an anti-viral drug nor an effective vaccines are available, studies on new anti-ASFV molecules are urgently need. Recently, it has been shown that ASFV type II topoisomerase (ASFV-topo II) is inhibited by several fluoroquinolones (bacterial DNA topoisomerase inhibitors), raising the idea that this viral enzyme can be a potential target for drug development against ASFV. Here, we report that genistein hampers ASFV infection at non-cytotoxic concentrations in Vero cells and porcine macrophages. Interestingly, the antiviral activity of this isoflavone, previously described as a topo II poison in eukaryotes, is maximal when it is added to cells at middle-phase of infection (8 hpi), disrupting viral DNA replication, blocking the transcription of late viral genes as well as the synthesis of late viral proteins, reducing viral progeny. Further, the single cell electrophoresis analysis revealed the presence of fragmented ASFV genomes in cells exposed to genistein, suggesting that this molecule also acts as an ASFV-topo II poison and not as a reversible inhibitor. No antiviral effects were detected when genistein was added before or at entry phase of ASFV infection. Molecular docking studies demonstrated that genistein may interact with four residues of the ATP-binding site of ASFV-topo II (Asn-144, Val-146, Gly-147 and Leu-148), showing more binding affinity (−4.62 kcal/mol) than ATP4− (−3.02 kcal/mol), emphasizing the idea that this viral enzyme has an essential role during viral genome replication and can be a good target for drug development against ASFV. Genistein shows potent anti-ASFV activity at non-cytotoxic concentrations. Genistein disrupts viral genome replication and viral protein synthesis. It acts as an ASFV-topo II poison promoting irreversible viral genome breaks. Docking studies revealed that genistein interacts with the ATP-binding site of ASFV-topo II with more affinity than ATP4−.
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Affiliation(s)
- Erik Arabyan
- Group of Antiviral Defense Mechanisms, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia
| | - Astghik Hakobyan
- Group of Antiviral Defense Mechanisms, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia
| | - Armen Kotsinyan
- Group of Antiviral Defense Mechanisms, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia
| | - Zaven Karalyan
- Laboratory of Cell Biology and Virology, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia
| | - Vahram Arakelov
- Laboratory of Computational Modeling of Biological Processes, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia; Russian-Armenian (Slavonic) University, 0051, Yerevan, Armenia
| | - Grigor Arakelov
- Laboratory of Computational Modeling of Biological Processes, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia; Russian-Armenian (Slavonic) University, 0051, Yerevan, Armenia
| | - Karen Nazaryan
- Laboratory of Computational Modeling of Biological Processes, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia; Russian-Armenian (Slavonic) University, 0051, Yerevan, Armenia
| | - Anna Simonyan
- Department of Genetics and Cytology, Yerevan State University, 0025, Yerevan, Armenia
| | - Rouben Aroutiounian
- Department of Genetics and Cytology, Yerevan State University, 0025, Yerevan, Armenia
| | - Fernando Ferreira
- Center for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal
| | - Hovakim Zakaryan
- Group of Antiviral Defense Mechanisms, Institute of Molecular Biology of NAS, 0014, Yerevan, Armenia.
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14
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Wang Z, Shang H, Jiang Y. Chemokines and Chemokine Receptors: Accomplices for Human Immunodeficiency Virus Infection and Latency. Front Immunol 2017; 8:1274. [PMID: 29085362 PMCID: PMC5650658 DOI: 10.3389/fimmu.2017.01274] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 09/25/2017] [Indexed: 12/22/2022] Open
Abstract
Chemokines are small chemotactic cytokines that are involved in the regulation of immune cell migration. Multiple functional properties of chemokines, such as pro-inflammation, immune regulation, and promotion of cell growth, angiogenesis, and apoptosis, have been identified in many pathological and physiological contexts. Human immunodeficiency virus (HIV) infection is characterized by persistent inflammation and immune activation during both acute and chronic phases, and the "cytokine storm" is one of the hallmarks of HIV infection. Along with immune activation after HIV infection, an extensive range of chemokines and other cytokines are elevated, thereby generating the so-called "cytokine storm." In this review, the effects of the upregulated chemokines and chemokine receptors on the processes of HIV infection are discussed. The objective of this review was to focus on the main chemokines and chemokine receptors that have been found to be associated with HIV infection and latency. Elevated chemokines and chemokine receptors have been shown to play important roles in the HIV life cycle, disease progression, and HIV reservoir establishment. Thus, targeting these chemokines and receptors and the other proteins of related signaling pathways might provide novel therapeutic strategies, and the evidence indicates a promising future regarding the development of a functional cure for HIV.
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Affiliation(s)
- Zhuo Wang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Hong Shang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Yongjun Jiang
- Key Laboratory of AIDS Immunology of National Health and Family Planning Commission, Department of Laboratory Medicine, The First Affiliated Hospital, China Medical University, Shenyang, China
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15
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Hussain H, Green IR. A patent review of the therapeutic potential of isoflavones (2012-2016). Expert Opin Ther Pat 2017; 27:1135-1146. [DOI: 10.1080/13543776.2017.1339791] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hidayat Hussain
- UoN Chair of Oman’s Medicinal Plants and Marine Natural Products, University of Nizwa, Nizwa, Sultanate of Oman
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, San Diego, CA, USA
| | - Ivan R. Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Stellenbosch, South Africa
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16
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Flavonoids: promising natural compounds against viral infections. Arch Virol 2017; 162:2539-2551. [PMID: 28547385 PMCID: PMC7087220 DOI: 10.1007/s00705-017-3417-y] [Citation(s) in RCA: 254] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/05/2017] [Indexed: 01/12/2023]
Abstract
Flavonoids are widely distributed as secondary metabolites produced by plants and play important roles in plant physiology, having a variety of potential biological benefits such as antioxidant, anti-inflammatory, anticancer, antibacterial, antifungal and antiviral activity. Different flavonoids have been investigated for their potential antiviral activities and several of them exhibited significant antiviral properties in in vitro and even in vivo studies. This review summarizes the evidence for antiviral activity of different flavonoids, highlighting, where investigated, the cellular and molecular mechanisms of action on viruses. We also present future perspectives on therapeutic applications of flavonoids against viral infections.
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17
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Natural polyphenols: potential in the prevention of sexually transmitted viral infections. Drug Discov Today 2015; 21:333-41. [PMID: 26546859 DOI: 10.1016/j.drudis.2015.10.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 10/23/2015] [Accepted: 10/26/2015] [Indexed: 10/22/2022]
Abstract
Sexually transmitted viral infections represent a major public health concern due to lack of effective prevention strategies. Efforts are ongoing to develop modalities that can enable simultaneous prevention of multiple sexually transmitted infections. In the present review, we discuss the potential of natural polyphenols to prevent sexually transmitted viral infections. The review gives an account of various in vitro and in vivo studies carried out on epigallocatechin gallate, theaflavins (black tea polyphenols), resveratrol, genistein and curcumin to highlight their potential to prevent sexually transmitted infections caused by HIV (human immunodeficiency virus), HSV (herpes simplex virus) and HPV (human papilloma virus).
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18
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Argenta DF, Silva IT, Bassani VL, Koester LS, Teixeira HF, Simões CMO. Antiherpes evaluation of soybean isoflavonoids. Arch Virol 2015; 160:2335-42. [PMID: 26156104 DOI: 10.1007/s00705-015-2514-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 06/25/2015] [Indexed: 01/22/2023]
Abstract
The antiviral effects of soybean isoflavonoids have been investigated recently, especially those of genistein. It has been reported that this isoflavone is able to inhibit herpes simplex virus (HSV) replication, which is associated with skin and epithelial mucosa infections. The treatment of these infections with antiherpes drugs has resulted in the emergence of resistant viral strains. Based on this evidence, the aim of this study was to investigate the anti-HSV effects of soybean isoflavonoids: daidzein, genistein, glycitein, and coumestrol. Genistein and coumestrol inhibited HSV-1 (KOS and 29R strains, which are acyclovir sensitive and acyclovir resistant, respectively) and HSV-2 (333 strain) replication, whereas no antiviral effects were detected for daidzein and glycitein. The mechanisms of action were evaluated by different methodological strategies. Coumestrol affected the early stages of viral infection, and both compounds were able to reduce HSV-1 protein expression, as well as HSV-2 cell-to-cell spread.
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Affiliation(s)
- D F Argenta
- Programa de Pós-graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, Porto Alegre, 90610-000, Brazil
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19
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Dastmalchi M, Dhaubhadel S. Proteomic insights into synthesis of isoflavonoids in soybean seeds. Proteomics 2015; 15:1646-57. [PMID: 25757747 DOI: 10.1002/pmic.201400444] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/25/2014] [Accepted: 12/30/2014] [Indexed: 12/13/2022]
Abstract
Soybean seeds are the major human dietary source of isoflavonoids, a class of plant natural products almost entirely exclusive to legumes. Isoflavonoids reduce the risk of a number of chronic human illnesses. Biosynthesis and accumulation of this class of compounds is a multigenic and complex trait, with a great deal of variability among soybean cultivars and with respect to the environment. There is a wealth of genomic, transcriptomic, and metabolomics data regarding isoflavonoid biosynthesis, but the connection between multigene families and their cognate proteins is a missing link that could provide us with a great deal of functional information. The changing proteome of the developing seed can shed light on the correlative increase in isoflavonoids, while the maternal seed coat proteome can provide the link with inherited metabolic and signaling machinery. In this effort, 'seed-filling' proteomics has revealed key secondary metabolite enzymes that quantitatively vary throughout seed development. Seed coat proteomics has revealed the existence of metabolic apparatus specific to isoflavonoid biosynthesis (isoflavonoid reductase) that could potentially influence the chemical content of this organ. The future of proteomic analysis of isoflavonoid biosynthesis should be centered on the development of quantitative, tissue-specific proteomes that emphasize low-abundance metabolic proteins to extract the whole suite of factors involved.
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Affiliation(s)
- Mehran Dastmalchi
- Department of Biology, University of Western Ontario, London, Canada
- Southern Crop Protection and Food Research Center, Agriculture and Agri-Food Canada, London, Canada
| | - Sangeeta Dhaubhadel
- Department of Biology, University of Western Ontario, London, Canada
- Southern Crop Protection and Food Research Center, Agriculture and Agri-Food Canada, London, Canada
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20
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Qian K, Gao AJ, Zhu MY, Shao HX, Jin WJ, Ye JQ, Qin AJ. Genistein inhibits the replication of avian leucosis virus subgroup J in DF-1 cells. Virus Res 2014; 192:114-20. [PMID: 25197039 DOI: 10.1016/j.virusres.2014.08.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/16/2014] [Accepted: 08/26/2014] [Indexed: 01/16/2023]
Abstract
To investigate the antiviral effects of genistein on the replication of avian leukosis virus subgroup J (ALV-J) in DF-1 cells, the cells were treated with genistein at different time points and the antiviral effects were examined by using a variety of assays. We determined that genistein strongly inhibited viral gene expression and decreased the viral protein level in the cell supernatant and the cytoplasm without alerting virus receptor expression and viral attachment. We also observed that genistein was not found to interfere with virus entry, but significantly inhibited both viral gene transcriptions at 24h post infection and virus release, which indicate that genistein exerts its inhibitory effects on the late phase of ALV-J replicative cycle. These results demonstrate that genistein effectively block ALV-J replication by inhibiting virus transcription and release in DF-1 cells, which may be useful for therapeutic drug design.
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Affiliation(s)
- Kun Qian
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Ai-jun Gao
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China.
| | - Ming-yue Zhu
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China.
| | - Hong-xia Shao
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Wen-jie Jin
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Jian-qiang Ye
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
| | - Ai-jian Qin
- Ministry of Education Key Lab for Avian Preventive Medicine, Yangzhou University, Yangzhou 225009, China; Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China.
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21
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Spear M, Guo J, Wu Y. Novel anti-HIV therapeutics targeting chemokine receptors and actin regulatory pathways. Immunol Rev 2014; 256:300-12. [PMID: 24117829 DOI: 10.1111/imr.12106] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The human immunodeficiency virus-1 (HIV-1) infects helper CD4(+) T cells, and causes CD4(+) T-cell depletion and immunodeficiency. In the past 30 years, significant progress has been made in antiretroviral therapy, and the disease has become manageable. Nevertheless, an effective vaccine is still nowhere in sight, and a cure or a functional cure awaits discovery. Among possible curative therapies, traditional antiretroviral therapy, mostly targeting viral proteins, has been proven ineffective. It is possible that targeting HIV-dependent host cofactors may offer alternatives, both for preventing HIV transmission and for forestalling disease progression. Recently, the actin cytoskeleton and its regulators in blood CD4(+) T cells have emerged as major host cofactors that could be targeted. The novel concept that the cortical actin is a barrier to viral entry and early post-entry migration has led to the nascent model of virus-host interaction at the cortical actin layer. Deciphering the cellular regulatory pathways has manifested exciting prospects for future therapeutics. In this review, we describe the study of HIV interactions with actin cytoskeleton. We also examine potential pharmacological targets that emerge from this interaction. In addition, we briefly discuss several actin pathway-based anti-HIV drugs that are currently in development or testing.
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Affiliation(s)
- Mark Spear
- National Center for Biodefense and Infectious Diseases, Department of Molecular and Microbiology, George Mason University, Manassas, VA, USA
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22
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Cui S, Wienhoefer N, Bilitewski U. Genistein induces morphology change and G2/M cell cycle arrest by inducing p38 MAPK activation in macrophages. Int Immunopharmacol 2013; 18:142-50. [PMID: 24290959 DOI: 10.1016/j.intimp.2013.11.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 10/30/2013] [Accepted: 11/14/2013] [Indexed: 01/06/2023]
Abstract
Genistein is a well known natural compound which is present in soy foods and exerts many beneficial functions such as anticancer, anti-inflammatory and antioxidant. However, until now little is known about the effects of genistein on the function of macrophages. The murine macrophage cell line RAW264.7 was used as target cell line. The results show that at concentrations of 50-100μM, genistein reduced cell viability to 70%-80% (after 24h) and 50%-60% (after 48h), which was due to G2/M phase cell cycle arrest. Treatment of the macrophages with genistein for 24 or 48h also led to significant morphological changes, such as elongation of the cells and development of long pseudopodia-like protrusions. By staining the F-actin cytoskeleton, we observed accumulation of actin-filaments at the edges of the cells. The morphology change and G2/M phase arrest after genistein treatment is due to the activation of the phosphorylation of MAP kinase p38. The morphology change and cell cycle arrest can be significantly reverted when treatment is combined with p38 inhibitor SB203580. Moreover, after treatment of the macrophages with genistein for 24 and 48h, the phagocytotic efficiency for Candida albicans was decreased in a time- and dose-dependent manner which correlates to the morphology change. The production of cytokines (TNF-α) stimulated by C. albicans was strongly inhibited by genistein. In conclusion, genistein showed a strong immune modulatory effect on the macrophages.
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Affiliation(s)
- Shuna Cui
- Medical College of Yangzhou University, Huaihai Road 11, 225001, Yangzhou, China; Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Nina Wienhoefer
- Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, Germany
| | - Ursula Bilitewski
- Helmholtz Centre for Infection Research (HZI), Inhoffenstr. 7, 38124 Braunschweig, Germany.
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