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Roy S, Roy S, Banerjee M, Madbhagat P, Chande A, Ukil A. Antileishmanial Activity of Cathelicidin and its Modulation by Leishmania donovani in a cAMP Response Element Modulator-Dependent Manner in Infection. J Infect Dis 2024; 230:172-182. [PMID: 39052704 DOI: 10.1093/infdis/jiae158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/19/2024] [Accepted: 03/26/2024] [Indexed: 07/27/2024] Open
Abstract
Concerns regarding toxicity and resistance of current drugs in visceral leishmaniasis have been reported. Antimicrobial peptides are considered to be promising candidates and among them human cathelicidin hCAP18/LL-37 showed significant parasite killing on drug-sensitive and resistant Leishmania promastigotes, in addition to its apoptosis-inducing role. Administration of hCAP18/LL-37 to infected macrophages also decreased parasite survival and increased the host favorable cytokine interleukin 12. However, 1,25-dihydroxyvitamin D3 (vitamin D3)-induced endogenous hCAP18/LL-37 production was hampered in infected THP-1 cells. Infection also suppressed the vitamin D3 receptor (VDR), transcription factor of hCAP18/LL-37. cAMP response element modulator (CREM), the repressor of VDR, was induced in infection, resulting in suppression of both VDR and cathelicidin expression. PGE2/cAMP/PKA axis was found to regulate CREM induction during infection and silencing CREM in infected cells and BALB/c mice led to decreased parasite survival. This study documents the antileishmanial potential of cathelicidin and further identifies CREM as a repressor of cathelicidin in Leishmania infection.
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Affiliation(s)
- Shalini Roy
- Department of Biochemistry, University of Calcutta, Kolkata, India
| | - Souravi Roy
- Department of Biochemistry, University of Calcutta, Kolkata, India
| | | | - Pratibha Madbhagat
- Molecular Virology Laboratory, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Ajit Chande
- Molecular Virology Laboratory, Indian Institute of Science Education and Research Bhopal, Bhopal, India
| | - Anindita Ukil
- Department of Biochemistry, University of Calcutta, Kolkata, India
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2
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Pei Y, Chen Z, Zhao R, An Y, Yisihaer H, Wang C, Bai Y, Liang L, Jin L, Hu Y. A Cyclic Peptide Based on Pheasant Cathelicidin Inhibits Influenza A H1N1 Virus Infection. Antibiotics (Basel) 2024; 13:606. [PMID: 39061288 PMCID: PMC11273436 DOI: 10.3390/antibiotics13070606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024] Open
Abstract
Influenza viruses are the leading cause of upper respiratory tract infections, leading to several global pandemics and threats to public health. Due to the continuous mutation of influenza A viruses, there is a constant need for the development of novel antiviral therapeutics. Recently, natural antimicrobial peptides have provided an opportunity for the discovery of anti-influenza molecules. Here, we designed several peptides based on pheasant cathelicidin and tested their antiviral activities and mechanisms against the H1N1 virus. Of note, the designed peptides Pc-4 and Pc-5 were found to inhibit replication of the H1N1 virus with an IC50 = 8.14 ± 3.94 µM and 2.47 ± 1.95 µM, respectively. In addition, the cyclic peptide Pc-5 was found to induce type I interferons and the expression of interferon-induced genes. An animal study showed that the cyclic peptide Pc-5 effectively inhibited H1N1 virus infection in a mouse model. Taken together, our work reveals a strategy for designing cyclic peptides and provides novel molecules with therapeutic potential against influenza A virus infection.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Lin Jin
- Shanxi Key Laboratory for Modernization of TCVM, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; (Y.P.); (Z.C.); (R.Z.); (Y.A.); (H.Y.); (C.W.); (Y.B.); (L.L.)
| | - Yongting Hu
- Shanxi Key Laboratory for Modernization of TCVM, College of Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China; (Y.P.); (Z.C.); (R.Z.); (Y.A.); (H.Y.); (C.W.); (Y.B.); (L.L.)
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3
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Zielke C, Nielsen JE, Lin JS, Barron AE. Between good and evil: Complexation of the human cathelicidin LL-37 with nucleic acids. Biophys J 2024; 123:1316-1328. [PMID: 37919905 PMCID: PMC11163296 DOI: 10.1016/j.bpj.2023.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/23/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023] Open
Abstract
The innate immune system provides a crucial first line of defense against invading pathogens attacking the body. As the only member of the human cathelicidin family, the antimicrobial peptide LL-37 has been shown to have antiviral, antifungal, and antibacterial properties. In complexation with nucleic acids, LL-37 is suggested to maintain its beneficial health effects while also acting as a condensation agent for the nucleic acid. Complexes formed by LL-37 and nucleic acids have been shown to be immunostimulatory with a positive impact on the human innate immune system. However, some studies also suggest that in some circumstances, LL-37/nucleic acid complexes may be a contributing factor to autoimmune disorders such as psoriasis and systemic lupus erythematosus. This review provides a comprehensive discussion of research highlighting the beneficial health effects of LL-37/nucleic acid complexes, as well as discussing observed detrimental effects. We will emphasize why it is important to investigate and elucidate structural characteristics, such as condensation patterns of nucleic acids within complexation, and their mechanisms of action, to shed light on the intricate physiological effects of LL-37 and the seemingly contradictory role of LL-37/nucleic acid complexes in the innate immune response.
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Affiliation(s)
- Claudia Zielke
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California
| | - Josefine Eilsø Nielsen
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California; Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Jennifer S Lin
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California
| | - Annelise E Barron
- Department of Bioengineering, Stanford University, Schools of Medicine and of Engineering, Stanford, California.
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4
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Zhang H, Dong M, Xu H, Li H, Zheng A, Sun G, Jin W. Recombinant Lactococcus lactis Expressing Human LL-37 Prevents Deaths from Viral Infections in Piglets and Chicken. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10155-6. [PMID: 37743432 DOI: 10.1007/s12602-023-10155-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2023] [Indexed: 09/26/2023]
Abstract
Novel antibiotic substitutes are increasingly in demand in the animal husbandry industry. An oral recombinant Lactococcus lactis (L. lactis) expressing human LL-37 (oral LL-37) was developed and its safety and antiviral effectiveness in vivo was tested. In addition to impairing liposome integrity, LL-37 polypeptide from recombinant L. lactis could prevent the host cell infection by a variety of viruses, including recombinant SARS, SARS-CoV-2, Ebola virus, and vesicular stomatitis virus G. Subchronic toxicity studies performed on Sprague-Dawley rats showed that no cumulative toxicity was found during short-term intervention. Oral LL-37 treatment after the onset of fever could reduce mortality in piglets infected with porcine reproductive and respiratory syndrome virus. Moreover, body weight gain of piglets receiving treatment was progressively restored, and nucleic acid positive rebound was not undetected after discontinuation. Oral LL-37 consistently increased the lifespan of chickens infected with Newcastle viruses. These findings suggested a potential use of recombinantly modified microorganisms in veterinary medicine.
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Affiliation(s)
- Hanlin Zhang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Meng Dong
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Huihui Xu
- Jilin Yuanheyuan Bioengineering Co., Ltd. Changchun, Jilin Province, 130000, China
| | - Hongyue Li
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Aihua Zheng
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
- CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Gang Sun
- Department of Gastroenterology and Hepatology, The First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Wanzhu Jin
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
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5
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von Beck T, Navarrete K, Arce NA, Gao M, Dale GA, Davis-Gardner ME, Floyd K, Mena Hernandez L, Mullick N, Vanderheiden A, Skountzou I, Kuchipudi SV, Saravanan R, Li R, Skolnick J, Suthar MS, Jacob J. A wild boar cathelicidin peptide derivative inhibits severe acute respiratory syndrome coronavirus-2 and its drifted variants. Sci Rep 2023; 13:14650. [PMID: 37670110 PMCID: PMC10480232 DOI: 10.1038/s41598-023-41850-7] [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: 12/22/2022] [Accepted: 08/31/2023] [Indexed: 09/07/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses a clear threat to humanity. It has infected over 200 million and killed 4 million people worldwide, and infections continue with no end in sight. To control the pandemic, multiple effective vaccines have been developed, and global vaccinations are in progress. However, the virus continues to mutate. Even when full vaccine coverage is achieved, vaccine-resistant mutants will likely emerge, thus requiring new annual vaccines against drifted variants analogous to influenza. A complimentary solution to this problem could be developing antiviral drugs that inhibit SARS CoV-2 and its drifted variants. Host defense peptides represent a potential source for such an antiviral as they possess broad antimicrobial activity and significant diversity across species. We screened the cathelicidin family of peptides from 16 different species for antiviral activity and identified a wild boar peptide derivative that inhibits SARS CoV-2. This peptide, which we named Yongshi and means warrior in Mandarin, acts as a viral entry inhibitor. Following the binding of SARS-CoV-2 to its receptor, the spike protein is cleaved, and heptad repeats 1 and 2 multimerize to form the fusion complex that enables the virion to enter the cell. A deep learning-based protein sequence comparison algorithm and molecular modeling suggest that Yongshi acts as a mimetic to the heptad repeats of the virus, thereby disrupting the fusion process. Experimental data confirm the binding of Yongshi to the heptad repeat 1 with a fourfold higher affinity than heptad repeat 2 of SARS-CoV-2. Yongshi also binds to the heptad repeat 1 of SARS-CoV-1 and MERS-CoV. Interestingly, it inhibits all drifted variants of SARS CoV-2 that we tested, including the alpha, beta, gamma, delta, kappa and omicron variants.
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Affiliation(s)
- Troy von Beck
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Karla Navarrete
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Nicholas A Arce
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Mu Gao
- Center for the Study of Systems Biology, School of Biological Sciences, Georgia Institute of Technology, 950 Atlantic Drive, NW, Atlanta, GA, 30332, USA
| | - Gordon A Dale
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Meredith E Davis-Gardner
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Katharine Floyd
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Luis Mena Hernandez
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Nikita Mullick
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Abigail Vanderheiden
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Ioanna Skountzou
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
| | - Suresh V Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, The Center for Infectious Disease Dynamics, Pennsylvania State University, University Park, PA, 16802, USA
| | - Rathi Saravanan
- Centre of Regulatory Excellence (CoRE), Duke-NUS Medical School, Level 6, 8 College Road, Singapore, 169857, Singapore
| | - Renhao Li
- Department of Pediatrics, Aflac Cancer and Blood Disorders Center, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Jeffrey Skolnick
- Center for the Study of Systems Biology, School of Biological Sciences, Georgia Institute of Technology, 950 Atlantic Drive, NW, Atlanta, GA, 30332, USA
| | - Mehul S Suthar
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA
- Division of Infectious Diseases, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Joshy Jacob
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA, 30329, USA.
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Veerati PC, Reid AT, Nichol KS, Wark PAB, Knight DA, Bartlett NW, Grainge CL. Mechanical forces suppress antiviral innate immune responses from asthmatic airway epithelial cells following rhinovirus infection. Am J Physiol Lung Cell Mol Physiol 2023; 325:L206-L214. [PMID: 37280545 PMCID: PMC10396277 DOI: 10.1152/ajplung.00074.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/12/2023] [Accepted: 05/25/2023] [Indexed: 06/08/2023] Open
Abstract
Bronchoconstriction is the main physiological event in asthma, which leads to worsened clinical symptoms and generates mechanical stress within the airways. Virus infection is the primary cause of exacerbations in people with asthma, however, the impact that bronchoconstriction itself on host antiviral responses and viral replication is currently not well understood. Here we demonstrate how mechanical forces generated during bronchoconstriction may suppress antiviral responses at the airway epithelium without any difference in viral replication. Primary bronchial epithelial cells from donors with asthma were differentiated at the air-liquid interface. Differentiated cells were apically compressed (30 cmH2O) for 10 min every hour for 4 days to mimic bronchoconstriction. Two asthma disease models were developed with the application of compression, either before ("poor asthma control model," n = 7) or following ("exacerbation model," n = 4) rhinovirus (RV) infection. Samples were collected at 0, 24, 48, 72, and 96 h postinfection (hpi). Viral RNA, interferon (IFN)-β, IFN-λ, and host defense antiviral peptide gene expressions were measured along with IFN-β, IFN-λ, TGF-β2, interleukin-6 (IL-6), and IL-8 protein expression. Apical compression significantly suppressed RV-induced IFN-β protein from 48 hpi and IFN-λ from 72 hpi in the poor asthma control model. There was a nonsignificant reduction of both IFN-β and IFN-λ proteins from 48 hpi in the exacerbation model. Despite reductions in antiviral proteins, there was no significant change in viral replication in either model. Compressive stress mimicking bronchoconstriction inhibits antiviral innate immune responses from asthmatic airway epithelial cells when applied before RV infection.NEW & NOTEWORTHY Bronchoconstriction is the main physiological event in asthma, which leads to worsened clinical symptoms and generates mechanical stress within the airways. Virus infection is the primary cause of exacerbations in people with asthma, however, the impact of bronchoconstriction on host antiviral responses and viral replication is unknown. We developed two disease models, in vitro, and found suppressed IFN response from cells following the application of compression and RV-A1 infection. This explains why people with asthma have deficient IFN response.
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Affiliation(s)
- Punnam Chander Veerati
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Andrew T Reid
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Kristy S Nichol
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Peter A B Wark
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Darryl A Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
- Research and Academic Affairs, Providence Health Care Research Institute, Vancouver, British Columbia, Canada
| | - Nathan W Bartlett
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
| | - Christopher L Grainge
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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7
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Myszor IT, Gudmundsson GH. Modulation of innate immunity in airway epithelium for host-directed therapy. Front Immunol 2023; 14:1197908. [PMID: 37251385 PMCID: PMC10213533 DOI: 10.3389/fimmu.2023.1197908] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/24/2023] [Indexed: 05/31/2023] Open
Abstract
Innate immunity of the mucosal surfaces provides the first-line defense from invading pathogens and pollutants conferring protection from the external environment. Innate immune system of the airway epithelium consists of several components including the mucus layer, mucociliary clearance of beating cilia, production of host defense peptides, epithelial barrier integrity provided by tight and adherens junctions, pathogen recognition receptors, receptors for chemokines and cytokines, production of reactive oxygen species, and autophagy. Therefore, multiple components interplay with each other for efficient protection from pathogens that still can subvert host innate immune defenses. Hence, the modulation of innate immune responses with different inducers to boost host endogenous front-line defenses in the lung epithelium to fend off pathogens and to enhance epithelial innate immune responses in the immunocompromised individuals is of interest for host-directed therapy. Herein, we reviewed possibilities of modulation innate immune responses in the airway epithelium for host-directed therapy presenting an alternative approach to standard antibiotics.
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Affiliation(s)
- Iwona T. Myszor
- Faculty of Life and Environmental Sciences, Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Gudmundur Hrafn Gudmundsson
- Faculty of Life and Environmental Sciences, Biomedical Center, University of Iceland, Reykjavik, Iceland
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
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8
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Yang Y, Huang C, Hui L, Song Y, Fu Y, Li M, Yang H, Wu J, Sun J, Xu W, Wei L. Cathelicidins Target HSP60 To Restrict CVB3 Transmission via Disrupting the Exosome and Reducing Cardiomyocyte Apoptosis. J Virol 2023; 97:e0143322. [PMID: 36916989 PMCID: PMC10062171 DOI: 10.1128/jvi.01433-22] [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: 10/28/2022] [Accepted: 02/17/2023] [Indexed: 03/16/2023] Open
Abstract
Cathelicidin antimicrobial peptides (mouse, CRAMP; human, LL-37) have broad-spectrum antiviral activities against enveloped viruses, but their mechanisms of action against nonenveloped viruses remain to be elucidated. Coxsackievirus B3 (CVB3), a member of nonenveloped virus belonging to the Enterovirus genus of Picornaviridae, is an important pathogen of viral myocarditis and dilated cardiomyopathy. Here, we observed that cardiac CRAMP expression was significantly upregulated in mice after CVB3 infection. The administration of CRAMP or LL-37 markedly suppressed CVB3 infection in mice, and CRAMP deficiency increased the susceptibility of mice to CVB3. CRAMP and LL-37 inhibited CVB3 replication in primary cardiomyocytes. However, they did not inactivate CVB3 particles and did not regulate the response of cardiomyocytes against CVB3 infection. Intriguingly, they inhibited CVB3 transmission through the exosome, but not virus receptor. In detail, CRAMP and LL-37 directly induced the lysis of exosomes by interfering with exosomal heat shock protein 60 (HSP60) and then blocked the diffusion of exosomes to recipient cells and inhibited the establishment of productive infection by exosomes. In addition, the interaction of CRAMP and LL-37 with HSP60 simultaneously inhibited HSP60-induced apoptosis in cardiomyocytes and reduced HSP60-enhanced CVB3 replication. Our findings reveal a novel mechanism of cathelicidins against viral infection and provide a new therapeutic strategy for CVB3-induced viral myocarditis. IMPORTANCE The relative mechanisms that cathelicidin antimicrobial peptides use to influence nonenveloped virus infection are unclear. We show here that cathelicidin antimicrobial peptides (CRAMP and LL-37) directly target exosomal HSP60 to destroy exosomes, which in turn block the diffusion of exosomes to recipient cardiomyocytes and reduced HSP60-induced apoptosis, thus restricting coxsackievirus B3 infection. Our results provide new insights into the mechanisms cathelicidin antimicrobial peptides use against viral infection.
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Affiliation(s)
- Yang Yang
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Chunjing Huang
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Li Hui
- The Affiliated Guangji Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Yahui Song
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Yuxuan Fu
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Min Li
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Hailong Yang
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Jing Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming, Yunnan, China
| | - Jia Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Wei Xu
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Lin Wei
- Jiangsu Provincial Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu, China
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9
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Antiviral Peptides in Antimicrobial Surface Coatings—From Current Techniques to Potential Applications. Viruses 2023; 15:v15030640. [PMID: 36992349 PMCID: PMC10051592 DOI: 10.3390/v15030640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
The transmission of pathogens through contact with contaminated surfaces is an important route for the spread of infections. The recent outbreak of COVID-19 highlights the necessity to attenuate surface-mediated transmission. Currently, the disinfection and sanitization of surfaces are commonly performed in this regard. However, there are some disadvantages associated with these practices, including the development of antibiotic resistance, viral mutation, etc.; hence, a better strategy is necessary. In recent years, peptides have been studied to be utilized as a potential alternative. They are part of the host immune defense and have many potential in vivo applications in drug delivery, diagnostics, immunomodulation, etc. Additionally, the ability of peptides to interact with different molecules and membrane surfaces of microorganisms has made it possible to exploit them in ex vivo applications such as antimicrobial (antibacterial and antiviral) coatings. Although antibacterial peptide coatings have been studied extensively and proven to be effective, antiviral coatings are a more recent development. Therefore, this study aims to highlight antiviral coating strategies and the current practices and application of antiviral coating materials in personal protective equipment, healthcare devices, and textiles and surfaces in public settings. Here, we have presented a review on potential techniques to incorporate peptides in current surface coating strategies that will serve as a guide for developing cost-effective, sustainable and coherent antiviral surface coatings. We further our discussion to highlight some challenges of using peptides as a surface coating material and to examine future perspectives.
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10
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Flow-Based Fmoc-SPPS Preparation and SAR Study of Cathelicidin-PY Reveals Selective Antimicrobial Activity. Molecules 2023; 28:molecules28041993. [PMID: 36838983 PMCID: PMC9959817 DOI: 10.3390/molecules28041993] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/23/2023] Open
Abstract
Antimicrobial peptides (AMPs) hold promise as novel therapeutics in the fight against multi-drug-resistant pathogens. Cathelicidin-PY (NH2-RKCNFLCKLKEKLRTVITSHIDKVLRPQG-COOH) is a 29-residue disulfide-cyclised antimicrobial peptide secreted as an innate host defence mechanism by the frog Paa yunnanensis (PY) and reported to possess broad-spectrum antibacterial and antifungal properties, exhibiting low cytotoxic and low hemolytic activity. Herein, we detail the total synthesis of cathelicidin-PY using an entirely on-resin synthesis, including assembly of the linear sequence by rapid flow Fmoc-SPPS and iodine-mediated disulfide bridge formation. By optimising a synthetic strategy to prepare cathelicidin-PY, this strategy was subsequently adapted to prepare a bicyclic head-to-tail cyclised derivative of cathelicidin-PY. The structure-activity relationship (SAR) of cathelicidin-PY with respect to the N-terminally positioned disulfide was further probed by preparing an alanine-substituted linear analogue and a series of lactam-bridged peptidomimetics implementing side chain to side chain cyclisation. The analogues were investigated for antimicrobial activity, secondary structure by circular dichroism (CD), and stability in human serum. Surprisingly, the disulfide bridge emerged as non-essential to antimicrobial activity and secondary structure but was amenable to synthetic modification. Furthermore, the synthetic AMP and multiple analogues demonstrated selective activity towards Gram-negative pathogen E. coli in physiologically relevant concentrations of divalent cations.
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Abstract
Coronavirus disease (COVID-19) is an infectious disease caused by a new virus that causes respiratory illness. Older adults and individuals who have pre-existing chronic medical conditions are at higher risk for more serious complications from COVID-19. Hypovitaminosis D is attributed to the increased risk of lung injury and acute respiratory distress syndrome (ARDS) as well as diabetes, cardiovascular events and associated comorbidities, which are the main causes of severe clinical complications in COVID-19 patients. Considering the defensive role of vitamin D, mediated through modulation of the innate and adaptive immune system as well as inhibition of the Renin Angiotensin System (RAS), vitamin D supplementation might boost the immune system of COVID-19 patients and reduce severity of the disease in vitamin D deficient individuals.
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Affiliation(s)
- Maryam Honardoost
- Endocrine Research Center, Institute of Endocrinology and Metabolism, University of Medical Sciences, Tehran, Iran
- Cardio-Oncology Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Ghavideldarestani
- Endocrine Research Center, Institute of Endocrinology and Metabolism, University of Medical Sciences, Tehran, Iran
| | - Mohammad E Khamseh
- Endocrine Research Center, Institute of Endocrinology and Metabolism, University of Medical Sciences, Tehran, Iran
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12
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Charoenngam N, Jaroenlapnopparat A, Mettler SK, Grover A. Genetic Variations of the Vitamin D Metabolic Pathway and COVID-19 Susceptibility and Severity: Current Understanding and Existing Evidence. Biomedicines 2023; 11:400. [PMID: 36830936 PMCID: PMC9953304 DOI: 10.3390/biomedicines11020400] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
The immunomodulatory and metabolic effects of vitamin D receptor (VDR) activation have been considered beneficial in mitigating the susceptibility and severity of COVID-19 infection. Furthermore, vitamin D-binding protein (DBP) has pleiotropic effects on the immune system that may influence inflammation associated with COVID-19. Multiple observational studies have demonstrated an association between low levels of serum 25-hydroxyvitamin D and risk and the severity of COVID-19 infection. However, the impact of vitamin D supplementation as an adjunctive treatment for COVID-19 based on evidence from randomized clinical trials is unclear. Equally important is that certain variations of the genes involved in the vitamin D metabolic pathway have been shown to affect immune function and linked with various clinical outcomes, including cardio-metabolic disorders, autoimmune diseases, infections, and cancers. This indicates inter-individual difference in body response to vitamin D. There is also emerging evidence that common polymorphisms of these genes may influence the susceptibility and severity of COVID-19, although the confidence of these findings is limited by a small number of studies and participants. Further studies are needed to address the potential role of VDR activation and DBP in the pathophysiology of COVID-19 which take into account the genetic variations of vitamin D metabolic pathway.
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Affiliation(s)
- Nipith Charoenngam
- Department of Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA 02138, USA
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 73170, Thailand
| | | | - Sofia K. Mettler
- Department of Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA 02138, USA
| | - Ashna Grover
- Department of Medicine, Mount Auburn Hospital, Harvard Medical School, Cambridge, MA 02138, USA
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13
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Baindara P, Ganguli S, Chakraborty R, Mandal SM. Preventing Respiratory Viral Diseases with Antimicrobial Peptide Master Regulators in the Lung Airway Habitat. Clin Pract 2023; 13:125-147. [PMID: 36648852 PMCID: PMC9844411 DOI: 10.3390/clinpract13010012] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023] Open
Abstract
The vast surface area of the respiratory system acts as an initial site of contact for microbes and foreign particles. The whole respiratory epithelium is covered with a thin layer of the airway and alveolar secretions. Respiratory secretions contain host defense peptides (HDPs), such as defensins and cathelicidins, which are the best-studied antimicrobial components expressed in the respiratory tract. HDPs have an important role in the human body's initial line of defense against pathogenic microbes. Epithelial and immunological cells produce HDPs in the surface fluids of the lungs, which act as endogenous antibiotics in the respiratory tract. The production and action of these antimicrobial peptides (AMPs) are critical in the host's defense against respiratory infections. In this study, we have described all the HDPs secreted in the respiratory tract as well as how their expression is regulated during respiratory disorders. We focused on the transcriptional expression and regulation mechanisms of respiratory tract HDPs. Understanding how HDPs are controlled throughout infections might provide an alternative to relying on the host's innate immunity to combat respiratory viral infections.
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Affiliation(s)
- Piyush Baindara
- Department of Radiation Oncology, University of Missouri, Columbia, MO 65211, USA
| | - Sriradha Ganguli
- OMICS Laboratory, Department of Biotechnology, University of North Bengal, P.O. NBU, Siliguri 734013, West Bengal, India
| | - Ranadhir Chakraborty
- OMICS Laboratory, Department of Biotechnology, University of North Bengal, P.O. NBU, Siliguri 734013, West Bengal, India
| | - Santi M. Mandal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
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14
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Asghari A, Jafari F, Jameshorani M, Chiti H, Naseri M, Ghafourirankouhi A, Kooshkaki O, Abdshah A, Parsamanesh N. Vitamin D role in hepatitis B: focus on immune system and genetics mechanism. Heliyon 2022; 8:e11569. [DOI: 10.1016/j.heliyon.2022.e11569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/01/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
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15
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Chinipardaz Z, Zhong JM, Yang S. Regulation of LL-37 in Bone and Periodontium Regeneration. LIFE (BASEL, SWITZERLAND) 2022; 12:life12101533. [PMID: 36294968 PMCID: PMC9604716 DOI: 10.3390/life12101533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
The goal of regenerative therapy is to restore the structure and function of the lost tissues in the fields of medicine and dentistry. However, there are some challenges in regeneration therapy such as the delivery of oxygen and nutrition, and the risk of infection in conditions such as periodontitis, osteomyelitis, etc. Leucine leucine-37 (LL-37) is a 37-residue, amphipathic, and helical peptide found only in humans and is expressed throughout the body. It has been shown to induce neovascularization and vascular endothelial growth factor (VEGF) expression. LL-37 also stimulates the migration and differentiation of mesenchymal stem cells (MSCs). Recent studies have shown that LL-37 plays an important role in the innate defense system through the elimination of pathogenic microbes and the modulation of the host immune response. LL-37 also manifests other functions such as promoting wound healing, angiogenesis, cell differentiation, and modulating apoptosis. This review summarizes the current studies on the structure, expression, and function of LL-37 and highlights the contributions of LL-37 to oral cavity, periodontium, and bone regeneration.
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Affiliation(s)
- Zahra Chinipardaz
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jessica M. Zhong
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
| | - Shuying Yang
- Department of Basic and Translation Sciences, University of Pennsylvania, 240 South 40th Street, Levy 437, Philadelphia, PA 19104, USA
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Center for Innovation & Precision Dentistry, School of Dental Medicine, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA
- The Penn Center for Musculoskeletal Disorders, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Correspondence:
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16
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Saini J, Kaur P, Malik N, Lakhawat SS, Sharma PK. Antimicrobial peptides: A promising tool to combat multidrug resistance in SARS CoV2 era. Microbiol Res 2022; 265:127206. [PMID: 36162150 PMCID: PMC9491010 DOI: 10.1016/j.micres.2022.127206] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 06/26/2022] [Accepted: 09/16/2022] [Indexed: 10/25/2022]
Abstract
COVID-19 (Coronavirus Disease 2019), a life-threatening viral infection, is caused by a highly pathogenic virus named SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2). Currently, no treatment is available for COVID-19; hence there is an urgent need to find effective therapeutic drugs to combat COVID-19 pandemic. Considering the fact that the world is facing a major issue of antimicrobial drug resistance, naturally occurring compounds have the potential to achieve this goal. Antimicrobial peptides (AMPs) are naturally occurring antimicrobial agents which are effective against a wide variety of microbial infections. Therefore, the use of AMPs is an attractive therapeutic strategy for the treatment of SARS-CoV-2 infection. This review sheds light on the potential of antimicrobial peptides as antiviral agents followed by a comprehensive description of effective antiviral peptides derived from various natural sources found to be effective against SARS-CoV and other respiratory viruses. It also highlights the mechanisms of action of antiviral peptides with special emphasis on their effectiveness against SARS-CoV-2 infection.
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Affiliation(s)
- Jasleen Saini
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Pritpal Kaur
- Department of Biotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Naveen Malik
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, India
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17
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An Update on the Effects of Vitamin D on the Immune System and Autoimmune Diseases. Int J Mol Sci 2022; 23:ijms23179784. [PMID: 36077185 PMCID: PMC9456003 DOI: 10.3390/ijms23179784] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 12/16/2022] Open
Abstract
Vitamin D intervenes in calcium and phosphate metabolism and bone homeostasis. Experimental studies have shown that 1,25-dihydroxyvitamin D (calcitriol) generates immunologic activities on the innate and adaptive immune system and endothelial membrane stability. Low levels of serum 25-hydroxyvitamin D (25(OH)D) are associated with an increased risk of developing immune-related diseases such as psoriasis, type 1 diabetes, multiple sclerosis, and autoimmune diseases. Various clinical trials describe the efficacy of supplementation of vitamin D and its metabolites for treating these diseases that result in variable outcomes. Different disease outcomes are observed in treatment with vitamin D as high inter-individual difference is present with complex gene expression in human peripheral blood mononuclear cells. However, it is still not fully known what level of serum 25(OH)D is needed. The current recommendation is to increase vitamin D intake and have enough sunlight exposure to have serum 25(OH)D at a level of 30 ng/mL (75 nmol/L) and better at 40–60 ng/mL (100–150 nmol/L) to obtain the optimal health benefits of vitamin D.
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18
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Golec M, Lemieszek MK, Dutkiewicz J, Milanowski J, Barteit S. A Scoping Analysis of Cathelicidin in Response to Organic Dust Exposure and Related Chronic Lung Illnesses. Int J Mol Sci 2022; 23:ijms23168847. [PMID: 36012117 PMCID: PMC9408003 DOI: 10.3390/ijms23168847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/06/2022] [Accepted: 08/07/2022] [Indexed: 11/21/2022] Open
Abstract
Over two billion people worldwide are exposed to organic dust, which can cause respiratory disorders. The discovery of the cathelicidin peptide provides novel insights into the lung’s response to organic dust; however, its role in the lung’s response to organic dust exposure and chronic lung diseases remains limited. We conducted a scoping review to map the current evidence on the role of cathelicidin LL-37/CRAMP in response to organic dust exposure and related chronic lung diseases: hypersensitivity pneumonitis (HP), chronic obstructive pulmonary disease (COPD) and asthma. We included a total of n = 53 peer-reviewed articles in this review, following the process of (i) a preliminary screening; (ii) a systematic MEDLINE/PubMed database search; (iii) title, abstract and full-text screening; (iv) data extraction and charting. Cathelicidin levels were shown to be altered in all clinical settings investigated; its pleiotropic function was confirmed. It was found that cathelicidin contributes to maintaining homeostasis and participates in lung injury response and repair, in addition to exerting a positive effect against microbial load and infections. In addition, LL-37 was found to sustain continuous inflammation, increase mucus formation and inhibit microorganisms and corticosteroids. In addition, studies investigated cathelicidin as a treatment modality, such as cathelicidin inhalation in experimental HP, which had positive effects. However, the primary focus of the included articles was on LL-37’s antibacterial effect, leading to the conclusion that the beneficial LL-37 activity has not been adequately examined and that further research is required.
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Affiliation(s)
- Marcin Golec
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, 69117 Heidelberg, Germany
- Correspondence:
| | - Marta Kinga Lemieszek
- Department of Medical Biology, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
| | - Jacek Dutkiewicz
- Department of Biological Health Hazards and Parasitology, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
| | - Janusz Milanowski
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Sandra Barteit
- Heidelberg Institute of Global Health (HIGH), Faculty of Medicine and University Hospital, Heidelberg University, 69117 Heidelberg, Germany
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19
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Gombash SE, Lee PW, Sawdai E, Lovett-Racke AE. Vitamin D as a Risk Factor for Multiple Sclerosis: Immunoregulatory or Neuroprotective? Front Neurol 2022; 13:796933. [PMID: 35651353 PMCID: PMC9149265 DOI: 10.3389/fneur.2022.796933] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 04/13/2022] [Indexed: 12/18/2022] Open
Abstract
Vitamin D insufficiency during childhood has been linked to the development of multiple sclerosis (MS), typically an adult-onset inflammatory demyelinating disease of the central nervous system (CNS). Since vitamin D was known to have immunoregulatory properties on both innate and adaptive immunity, it was hypothesized that low vitamin D resulted in aberrant immune responses and the development of MS. However, vitamin D receptors are present on many cell types, including neurons, oligodendrocytes, astrocytes and microglia, and vitamin D has profound effects on development and function of the CNS. This leads to the possibility that low vitamin D may alter the CNS in a manner that makes it vulnerable to inflammation and the development of MS. This review analysis the role of vitamin D in the immune and nervous system, and how vitamin D insufficiency in children may contribute to the development of MS.
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Affiliation(s)
- Sara E Gombash
- Department of Neuroscience, The Ohio State University, Columbus, OH, United States
| | - Priscilla W Lee
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, United States
| | - Elizabeth Sawdai
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, United States
| | - Amy E Lovett-Racke
- Department of Neuroscience, The Ohio State University, Columbus, OH, United States.,Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, United States
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20
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Aloul KM, Nielsen JE, Defensor EB, Lin JS, Fortkort JA, Shamloo M, Cirillo JD, Gombart AF, Barron AE. Upregulating Human Cathelicidin Antimicrobial Peptide LL-37 Expression May Prevent Severe COVID-19 Inflammatory Responses and Reduce Microthrombosis. Front Immunol 2022; 13:880961. [PMID: 35634307 PMCID: PMC9134243 DOI: 10.3389/fimmu.2022.880961] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/11/2022] [Indexed: 01/08/2023] Open
Abstract
COVID-19 is characterized by hyperactivation by inflammatory cytokines and recruitment of macrophages, neutrophils, and other immune cells, all hallmarks of a strong inflammatory response that can lead to severe complications and multi-organ damage. Mortality in COVID-19 patients is associated with a high prevalence of neutrophil extracellular trap (NET) formation and microthrombosis that are exacerbated by hyperglycemia, diabetes, and old age. SARS-CoV-2 infection in humans and non-human primates have revealed long-term neurological consequences of COVID-19, possibly concomitant with the formation of Lewy bodies in the brain and invasion of the nervous system via the olfactory bulb. In this paper, we review the relevance of the human cathelicidin LL-37 in SARS-CoV-2 infections. LL-37 is an immunomodulatory, host defense peptide with direct anti-SARS-CoV-2 activity, and pleiotropic effects on the inflammatory response, neovascularization, Lewy body formation, and pancreatic islet cell function. The bioactive form of vitamin D and a number of other compounds induce LL-37 expression and one might predict its upregulation, could reduce the prevalence of severe COVID-19. We hypothesize upregulation of LL-37 will act therapeutically, facilitating efficient NET clearance by macrophages, speeding endothelial repair after inflammatory tissue damage, preventing α-synuclein aggregation, and supporting blood-glucose level stabilization by facilitating insulin release and islet β-cell neogenesis. In addition, it has been postulated that LL-37 can directly bind the S1 domain of SARS-CoV-2, mask angiotensin converting enzyme 2 (ACE2) receptors, and limit SARS-CoV-2 infection. Purposeful upregulation of LL-37 could also serve as a preventative and therapeutic strategy for SARS-CoV-2 infections.
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Affiliation(s)
- Karim M. Aloul
- Department of Bioengineering, Schools of Medicine and of Engineering, Stanford University, Stanford, CA, United States
| | - Josefine Eilsø Nielsen
- Department of Bioengineering, Schools of Medicine and of Engineering, Stanford University, Stanford, CA, United States
- Department of Science and Environment, Roskilde University, Roskilde, Denmark
| | - Erwin B. Defensor
- Department of Neurosurgery, School of Medicine, Stanford University, Stanford, CA, United States
| | - Jennifer S. Lin
- Department of Bioengineering, Schools of Medicine and of Engineering, Stanford University, Stanford, CA, United States
| | - John A. Fortkort
- Department of Bioengineering, Schools of Medicine and of Engineering, Stanford University, Stanford, CA, United States
| | - Mehrdad Shamloo
- Department of Neurosurgery, School of Medicine, Stanford University, Stanford, CA, United States
| | - Jeffrey D. Cirillo
- Department of Microbial Pathogenesis and Immunology, Texas A&M College of Medicine, Bryan, TX, United States
| | - Adrian F. Gombart
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, United States
- The Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Annelise E. Barron
- Department of Bioengineering, Schools of Medicine and of Engineering, Stanford University, Stanford, CA, United States
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21
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Albergamo A, Apprato G, Silvagno F. The Role of Vitamin D in Supporting Health in the COVID-19 Era. Int J Mol Sci 2022; 23:3621. [PMID: 35408981 PMCID: PMC8998275 DOI: 10.3390/ijms23073621] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 02/06/2023] Open
Abstract
The genomic activity of vitamin D is associated with metabolic effects, and the hormone has a strong impact on several physiological functions and, therefore, on health. Among its renowned functions, vitamin D is an immunomodulator and a molecule with an anti-inflammatory effect, and, recently, it has been much studied in relation to its response against viral infections, especially against COVID-19. This review aims to take stock of the correlation studies between vitamin D deficiency and increased risks of severe COVID-19 disease and, similarly, between vitamin D deficiency and acute respiratory distress syndrome. Based on this evidence, supplementation with vitamin D has been tested in clinical trials, and the results are discussed. Finally, this study includes a biochemical analysis on the effects of vitamin D in the body's defense mechanisms against viral infection. In particular, the antioxidant and anti-inflammatory functions are considered in relation to energy metabolism, and the potential, beneficial effect of vitamin D in COVID-19 is described, with discussion of its influence on different biochemical pathways. The proposed, broader view of vitamin D activity could support a better-integrated approach in supplementation strategies against severe COVID-19, which could be valuable in a near future of living with an infection becoming endemic.
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Affiliation(s)
- Alice Albergamo
- Department of Oncology, University of Torino, 10126 Torino, Italy
| | - Giulia Apprato
- Department of Oncology, University of Torino, 10126 Torino, Italy
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22
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Influence of exercise and vitamin D on the immune system against Covid-19: an integrative review of current literature. Mol Cell Biochem 2022; 477:1725-1737. [PMID: 35258807 PMCID: PMC8902492 DOI: 10.1007/s11010-022-04402-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 02/23/2022] [Indexed: 10/26/2022]
Abstract
Respiratory infections of viral origin have become the leading cause of infectious diseases in the world. In 2020, the World Health Organization (WHO) declared a pandemic due to Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), Coronavirus Disease 2019 (Covid-19). The pandemic caused by the new coronavirus has challenged the entire global health system, since Covid-19 has a high rate of morbidity and mortality. The immune response to the virus depends on factors such as age, genetics, nutritional status, physical status, as well as environmental factors. Despite scientific advances, so far, there is still no specific therapy for the disease. Thus, this study aims to analyze the contribution of physical exercise and maintenance and/or supplementation of vitamin D to the strengthening of the immune system against viral infections, among them, Covid-19. Regular practice of moderate-intensity physical activity is responsible for promoting a reduction in the concentrations of pro-inflammatory cytokines (IL-6, TNF-α and IL-1β), as well as triggering the increase in the production of anti-inflammatory cytokines (IL-4 and IL-10). In addition, hypovitaminosis D predisposes to the development of chronic diseases and infections. Therefore, in patients affected by Covid-19, the maintenance of vitamin D levels contributes significantly to the 0prevention of the cytokine storm. Thus, the association between maintaining vitamin D levels and performing moderate-intensity physical exercise is responsible for strengthening the immune system and, therefore, triggering a defense mechanism against infections by intracellular microorganisms, in which SARS -CoV-2.
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23
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Esneau C, Duff AC, Bartlett NW. Understanding Rhinovirus Circulation and Impact on Illness. Viruses 2022; 14:141. [PMID: 35062345 PMCID: PMC8778310 DOI: 10.3390/v14010141] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/08/2022] [Accepted: 01/10/2022] [Indexed: 01/27/2023] Open
Abstract
Rhinoviruses (RVs) have been reported as one of the main viral causes for severe respiratory illnesses that may require hospitalization, competing with the burden of other respiratory viruses such as influenza and RSV in terms of severity, economic cost, and resource utilization. With three species and 169 subtypes, RV presents the greatest diversity within the Enterovirus genus, and despite the efforts of the research community to identify clinically relevant subtypes to target therapeutic strategies, the role of species and subtype in the clinical outcomes of RV infection remains unclear. This review aims to collect and organize data relevant to RV illness in order to find patterns and links with species and/or subtype, with a specific focus on species and subtype diversity in clinical studies typing of respiratory samples.
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Affiliation(s)
| | | | - Nathan W. Bartlett
- Hunter Medical Research Institute, College of Health Medicine and Wellbeing, University of Newcastle, New Lambton Heights, NSW 2305, Australia; (C.E.); (A.C.D.)
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24
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Kim J, Yang YL, Jeong Y, Jang YS. Application of Antimicrobial Peptide LL-37 as an Adjuvant for Middle East Respiratory Syndrome-Coronavirus Antigen Induces an Efficient Protective Immune Response Against Viral Infection After Intranasal Immunization. Immune Netw 2022; 22:e41. [DOI: 10.4110/in.2022.22.e41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/10/2022] [Accepted: 08/22/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Ju Kim
- Department of Molecular Biology and the Institute for Molecular Biology and Genetics, Jeonbuk National University, Jeonju 54896, Korea
| | - Ye Lin Yang
- Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Jeonbuk National University, Jeonju 54896, Korea
| | - Yongsu Jeong
- Graduate School of Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Yong-Suk Jang
- Department of Molecular Biology and the Institute for Molecular Biology and Genetics, Jeonbuk National University, Jeonju 54896, Korea
- Department of Bioactive Material Sciences and Research Center of Bioactive Materials, Jeonbuk National University, Jeonju 54896, Korea
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25
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Nireeksha N, Gollapalli P, Varma SR, Hegde MN, Kumari NS. Utilizing the Potential of Antimicrobial Peptide LL-37 for Combating SARS-COV- 2 Viral Load in Saliva: an In Silico Analysis. Eur J Dent 2021; 16:478-487. [PMID: 34937110 PMCID: PMC9507610 DOI: 10.1055/s-0041-1739444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Limiting the spread of virus during the recent pandemic outbreak was a major challenge. Viral loads in saliva, nasopharyngeal and oropharyngeal swabs were the major cause for droplet transmission and aerosols. Saliva being the major contributor for the presence of viral load is the major key factor; various mouthwashes and their combination were analyzed and utilized in health care centers to hamper the spread of virus and decrease viral load. The compositions of these mouthwashes to an extent affected the viral load and thereby transmission, but there is always a scope for other protocols which may provide better results. Here we evaluated the potential of antimicrobial peptide LL-37 in decreasing the viral load of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) through an in silico work and evidence from other studies. This narrative review highlighted a brief nonsystematic methodology to include the selected articles for discussion. Accessible electronic databases (Medline, Scopus, Web of Science, SciELO, and PubMed) were used to find studies that reported the salivary viral load of SARS-CoV-2 published between December 2019 and June 2021. The following keywords were utilized for brief searching of the databases: "saliva," "viral load," and "SARS-CoV-2." Articles in English language, in vitro cell-line studies, ex vivo studies, and clinical trials explaining the viral load of SARS-CoV-2 in saliva and strategies to decrease viral load were included in this review. The search was complemented by manual searching of the reference lists of included articles and performing a citation search for any additional reviews. The antiviral potential of cationic host defense peptide LL-37 was evaluated using computational approaches providing in silico evidence. The analysis of docking studies and the display of positive interfacial hydrophobicity of LL-37 resulting in disruption of COVID-19 viral membrane elucidate the fact that LL-37 could be effective against all variants of SARS-CoV-2. Further experimental studies would be needed to confirm the binding of the receptor-binding domain with LL-37. The possibility of using it in many forms further to decrease the viral load by disrupting the viral membrane is seen.
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Affiliation(s)
- Nireeksha Nireeksha
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, NITTE (deemed to be) University, Deralakatte, Mangaluru, Karnataka, India
| | - Pavan Gollapalli
- Central Research Laboratory, K.S. Hegde Medical Academy, NITTE (deemed to be) University, Deralakatte, Mangaluru, Karnataka, India
| | - Sudhir Rama Varma
- Department of Clinical Sciences, Ajman University, Ajman, United Arab Emirates.,Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates
| | - Mithra N Hegde
- Department of Conservative Dentistry and Endodontics, AB Shetty Memorial Institute of Dental Sciences, NITTE (deemed to be) University, Deralakatte, Mangaluru, Karnataka, India
| | - N Suchetha Kumari
- Department of Biochemistry, K.S. Hegde Medical Academy, NITTE (deemed to be) University, Deralakatte, Mangaluru, Karnataka, India
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Luo X, Wu W, Feng L, Treves H, Ren M. Short Peptides Make a Big Difference: The Role of Botany-Derived AMPs in Disease Control and Protection of Human Health. Int J Mol Sci 2021; 22:11363. [PMID: 34768793 PMCID: PMC8583512 DOI: 10.3390/ijms222111363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 11/17/2022] Open
Abstract
Botany-derived antimicrobial peptides (BAMPs), a class of small, cysteine-rich peptides produced in plants, are an important component of the plant immune system. Both in vivo and in vitro experiments have demonstrated their powerful antimicrobial activity. Besides in plants, BAMPs have cross-kingdom applications in human health, with toxic and/or inhibitory effects against a variety of tumor cells and viruses. With their diverse molecular structures, broad-spectrum antimicrobial activity, multiple mechanisms of action, and low cytotoxicity, BAMPs provide ideal backbones for drug design, and are potential candidates for plant protection and disease treatment. Lots of original research has elucidated the properties and antimicrobial mechanisms of BAMPs, and characterized their surface receptors and in vivo targets in pathogens. In this paper, we review and introduce five kinds of representative BAMPs belonging to the pathogenesis-related protein family, dissect their antifungal, antiviral, and anticancer mechanisms, and forecast their prospects in agriculture and global human health. Through the deeper understanding of BAMPs, we provide novel insights for their applications in broad-spectrum and durable plant disease prevention and control, and an outlook on the use of BAMPs in anticancer and antiviral drug design.
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Affiliation(s)
- Xiumei Luo
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu Agricultural Science and Technology Center, Chengdu 610000, China; (X.L.); (W.W.); (L.F.)
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China
| | - Wenxian Wu
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu Agricultural Science and Technology Center, Chengdu 610000, China; (X.L.); (W.W.); (L.F.)
| | - Li Feng
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu Agricultural Science and Technology Center, Chengdu 610000, China; (X.L.); (W.W.); (L.F.)
| | - Haim Treves
- School of Plant Sciences and Food Security, Tel-Aviv University, Tel-Aviv 69978, Israel;
| | - Maozhi Ren
- Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu Agricultural Science and Technology Center, Chengdu 610000, China; (X.L.); (W.W.); (L.F.)
- Zhengzhou Research Base, State Key Laboratory of Cotton Biology, School of Agricultural Science of Zhengzhou University, Zhengzhou 450000, China
- Hainan Yazhou Bay Seed Laboratory, Sanya 572025, China
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27
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Kopfnagel V, Dreyer S, Zeitvogel J, Pieper DH, Buch A, Sodeik B, Rademacher F, Harder J, Werfel T. Free human DNA attenuates the activity of antimicrobial peptides in atopic dermatitis. Allergy 2021; 76:3145-3154. [PMID: 34176149 DOI: 10.1111/all.14992] [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: 09/03/2020] [Revised: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 01/30/2023]
Abstract
BACKGROUND The high susceptibility of AD patients to microbial skin infections has been attributed to a deficient antimicrobial peptide (AMP) expression, which is contradicted by a growing amount of recent studies clearly demonstrating that AMP expression is not impaired in lesional skin of AD patients. The reasons for the high susceptibility of AD patients to microbial infections are still unknown. METHODS The influence of self-DNA on the antimicrobial activity of RNase 7, LL-37, and hBD2 has been investigated using antibacterial and antiviral assays. The amount of self-DNA on skin has been analyzed by skin rinsings and subsequent quantification using dsDNA assays. DNA source was identified by qPCR. RESULTS Complex formation of the AMPs with self-DNA significantly impaired their antibacterial activity against Staphylococcus aureus and their antiviral activity against HSV-1. The inhibition of the antibacterial activity was dependent on the DNA concentration but not on the length of the DNA molecules. Of note, we detected significant higher amounts of cell-free self-DNA in skin rinses taken from lesional AD skin compared to skin rinses from non-lesional skin and from normal skin of healthy donors. Consequently, rinse solution from AD lesional skin prevented antibacterial activity of LL-37. CONCLUSION Our study indicates that extracellular self-DNA is released in considerable amounts in AD skin lesions and AMP-self-DNA-complex formation leads to a significant loss of antibacterial and antiviral activity in atopic dermatitis. Studies on strategies to reduce the amount of extracellular DNA in AD are needed to identify possible methods relevant in clinical settings.
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Affiliation(s)
- Verena Kopfnagel
- Division of Immunodermatology and Allergy Research Department of Dermatology and Allergy Hannover Medical School Hannover Germany
- Cluster of Excellence RESIST (EXC 2155) Hannover Medical School Hannover Germany
| | - Sylvia Dreyer
- Division of Immunodermatology and Allergy Research Department of Dermatology and Allergy Hannover Medical School Hannover Germany
| | - Jana Zeitvogel
- Division of Immunodermatology and Allergy Research Department of Dermatology and Allergy Hannover Medical School Hannover Germany
- Cluster of Excellence RESIST (EXC 2155) Hannover Medical School Hannover Germany
| | - Dietmar H. Pieper
- Microbial Interactions and Processes Research Group Helmholtz Centre for Infection Research Braunschweig Germany
| | - Anna Buch
- Institute of Virology Hannover Medical School Hannover Germany
- DZIF – German Centre for Infection Research Partner site Hannover‐Braunschweig Germany
| | - Beate Sodeik
- Cluster of Excellence RESIST (EXC 2155) Hannover Medical School Hannover Germany
- Institute of Virology Hannover Medical School Hannover Germany
- DZIF – German Centre for Infection Research Partner site Hannover‐Braunschweig Germany
| | | | - Jürgen Harder
- Department of Dermatology University Hospital Schleswig‐Holstein Kiel Germany
| | - Thomas Werfel
- Division of Immunodermatology and Allergy Research Department of Dermatology and Allergy Hannover Medical School Hannover Germany
- Cluster of Excellence RESIST (EXC 2155) Hannover Medical School Hannover Germany
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28
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Rivas-Santiago B, Jacobo-Delgado Y, Rodriguez-Carlos A. Are Host Defense Peptides and Their Derivatives Ready to be Part of the Treatment of the Next Coronavirus Pandemic? Arch Immunol Ther Exp (Warsz) 2021; 69:25. [PMID: 34529143 PMCID: PMC8444179 DOI: 10.1007/s00005-021-00630-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022]
Abstract
The term host defense peptides arose at the beginning to refer to those peptides that are part of the host's immunity. Because of their broad antimicrobial capacity and immunomodulatory activity, nowadays, they emerge as a hope to combat resistant multi-drug microorganisms and emerging viruses, such as the case of coronaviruses. Since the beginning of this century, coronaviruses have been part of different outbreaks and a pandemic, and they will be surely part of the next pandemics, this review analyses whether these peptides and their derivatives are ready to be part of the treatment of the next coronavirus pandemic.
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Affiliation(s)
- Bruno Rivas-Santiago
- Biomedical Research Unit-Zacatecas, Mexican Institute for Social Security-IMSS, Col. Centro Zacatecas, Interior of Alameda #45, Zacatecas, Mexico.
| | - Yolanda Jacobo-Delgado
- Biomedical Research Unit-Zacatecas, Mexican Institute for Social Security-IMSS, Col. Centro Zacatecas, Interior of Alameda #45, Zacatecas, Mexico
| | - Adrian Rodriguez-Carlos
- Biomedical Research Unit-Zacatecas, Mexican Institute for Social Security-IMSS, Col. Centro Zacatecas, Interior of Alameda #45, Zacatecas, Mexico
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29
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Zhang QY, Yan ZB, Meng YM, Hong XY, Shao G, Ma JJ, Cheng XR, Liu J, Kang J, Fu CY. Antimicrobial peptides: mechanism of action, activity and clinical potential. Mil Med Res 2021; 8:48. [PMID: 34496967 PMCID: PMC8425997 DOI: 10.1186/s40779-021-00343-2] [Citation(s) in RCA: 196] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/30/2021] [Indexed: 12/15/2022] Open
Abstract
The management of bacterial infections is becoming a major clinical challenge due to the rapid evolution of antibiotic resistant bacteria. As an excellent candidate to overcome antibiotic resistance, antimicrobial peptides (AMPs) that are produced from the synthetic and natural sources demonstrate a broad-spectrum antimicrobial activity with the high specificity and low toxicity. These peptides possess distinctive structures and functions by employing sophisticated mechanisms of action. This comprehensive review provides a broad overview of AMPs from the origin, structural characteristics, mechanisms of action, biological activities to clinical applications. We finally discuss the strategies to optimize and develop AMP-based treatment as the potential antimicrobial and anticancer therapeutics.
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Affiliation(s)
- Qi-Yu Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Zhi-Bin Yan
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Yue-Ming Meng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xiang-Yu Hong
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Gang Shao
- Department of Oncology, The 903rd Hospital of PLA, Hangzhou, 310013, Zhejiang, China
| | - Jun-Jie Ma
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xu-Rui Cheng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Jun Liu
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Jian Kang
- Oncogenic Signaling and Growth Control Program, Peter MacCallum Cancer Centre, 305 Grattan Street, Melbourne, VIC, 3000, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Cai-Yun Fu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China.
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30
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Real-Hohn A, Blaas D. Rhinovirus Inhibitors: Including a New Target, the Viral RNA. Viruses 2021; 13:1784. [PMID: 34578365 PMCID: PMC8473194 DOI: 10.3390/v13091784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/21/2021] [Accepted: 09/03/2021] [Indexed: 12/18/2022] Open
Abstract
Rhinoviruses (RVs) are the main cause of recurrent infections with rather mild symptoms characteristic of the common cold. Nevertheless, RVs give rise to enormous numbers of absences from work and school and may become life-threatening in particular settings. Vaccination is jeopardised by the large number of serotypes eliciting only poorly cross-neutralising antibodies. Conversely, antivirals developed over the years failed FDA approval because of a low efficacy and/or side effects. RV species A, B, and C are now included in the fifteen species of the genus Enteroviruses based upon the high similarity of their genome sequences. As a result of their comparably low pathogenicity, RVs have become a handy model for other, more dangerous members of this genus, e.g., poliovirus and enterovirus 71. We provide a short overview of viral proteins that are considered potential drug targets and their corresponding drug candidates. We briefly mention more recently identified cellular enzymes whose inhibition impacts on RVs and comment novel approaches to interfere with infection via aggregation, virus trapping, or preventing viral access to the cell receptor. Finally, we devote a large part of this article to adding the viral RNA genome to the list of potential drug targets by dwelling on its structure, folding, and the still debated way of its exit from the capsid. Finally, we discuss the recent finding that G-quadruplex stabilising compounds impact on RNA egress possibly via obfuscating the unravelling of stable secondary structural elements.
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Affiliation(s)
- Antonio Real-Hohn
- Center for Medical Biochemistry, Vienna Biocenter, Max Perutz Laboratories, Medical University of Vienna, Dr. Bohr Gasse 9/3, A-1030 Vienna, Austria
| | - Dieter Blaas
- Center for Medical Biochemistry, Vienna Biocenter, Max Perutz Laboratories, Medical University of Vienna, Dr. Bohr Gasse 9/3, A-1030 Vienna, Austria
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31
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Vaghari-Tabari M, Mohammadzadeh I, Qujeq D, Majidinia M, Alemi F, Younesi S, Mahmoodpoor A, Maleki M, Yousefi B, Asemi Z. Vitamin D in respiratory viral infections: a key immune modulator? Crit Rev Food Sci Nutr 2021; 63:2231-2246. [PMID: 34470511 DOI: 10.1080/10408398.2021.1972407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Respiratory viral infections are common respiratory diseases. Influenza viruses, RSV and SARS-COV2 have the potential to cause severe respiratory infections. Numerous studies have shown that unregulated immune response to these viruses can cause excessive inflammation and tissue damage. Therefore, regulating the antiviral immune response in the respiratory tract is of importance. In this regard, recent years studies have emphasized the importance of vitamin D in respiratory viral infections. Although, the most well-known role of vitamin D is to regulate the metabolism of phosphorus and calcium, it has been shown that this vitamin has other important functions. One of these functions is immune regulation. Vitamin D can regulate the antiviral immune response in the respiratory tract in order to provide an effective defense against respiratory viral infections and prevention from excessive inflammatory response and tissue damage. In addition, this vitamin has preventive effects against respiratory viral infections. Some studies during the COVID-19 pandemic have shown that vitamin D deficiency may be associated with a higher risk of mortality and sever disease in patients with COVID-19. Since, more attention has recently been focused on vitamin D. In this article, after a brief overview of the antiviral immune response in the respiratory system, we will review the role of vitamin D in regulating the antiviral immune response comprehensively. Then we will discuss the importance of this vitamin in influenza, RSV, and COVID-19.
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Affiliation(s)
- Mostafa Vaghari-Tabari
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Iraj Mohammadzadeh
- Non-Communicable Pediatric Diseases Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Durdi Qujeq
- Department of Clinical Biochemistry, Babol University of Medical Sciences, Babol, Iran.,Cellular and Molecular Biology Research Center (CMBRC), Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Forough Alemi
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Simin Younesi
- Schoole of Health and Biomedical Sciences, RMIT University, Melborne, VIC, Australia
| | - Ata Mahmoodpoor
- Department of Anesthesiology and Intensive Care, School of Medicine, Tabriz University of Medical Science and Health Services, Tabriz, Iran
| | - Masomeh Maleki
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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32
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Valdez-Miramontes CE, De Haro-Acosta J, Aréchiga-Flores CF, Verdiguel-Fernández L, Rivas-Santiago B. Antimicrobial peptides in domestic animals and their applications in veterinary medicine. Peptides 2021; 142:170576. [PMID: 34033877 DOI: 10.1016/j.peptides.2021.170576] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/07/2021] [Accepted: 05/18/2021] [Indexed: 12/11/2022]
Abstract
Antimicrobial peptides (AMPs) are molecules with a broad-spectrum activity against bacteria, fungi, protozoa, and viruses. These peptides are widely distributed in insects, amphibians and mammals. Indeed, they are key molecules of the innate immune system with remarkable antimicrobial and immunomodulatory activity. Besides, these peptides have also shown regulatory activity for gut microbiota and have been considered inductors of growth performance. The current review describes the updated findings of antimicrobial peptides in domestic animals, such as bovines, goats, sheep, pigs, horses, canines and felines, analyzing the most relevant aspects of their use as potential therapeutics and their applications in Veterinary medicine.
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Affiliation(s)
- C E Valdez-Miramontes
- Academic Unit of Veterinary Medicine, Autonomous University of Zacatecas, Zacatecas, Mexico.
| | - Jeny De Haro-Acosta
- Medical Research Unit-Zacatecas, Mexican Institute for Social Security- IMSS, Zacatecas, Mexico
| | - C F Aréchiga-Flores
- Academic Unit of Veterinary Medicine, Autonomous University of Zacatecas, Zacatecas, Mexico
| | - L Verdiguel-Fernández
- Molecular Microbiology Laboratory, Department of Microbiology and Immunology, Faculty of Medicine Veterinary, National Autonomous University of Mexico, Mexico
| | - B Rivas-Santiago
- Medical Research Unit-Zacatecas, Mexican Institute for Social Security- IMSS, Zacatecas, Mexico
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33
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Shah Alam M, Czajkowsky DM, Aminul Islam M, Ataur Rahman M. The role of vitamin D in reducing SARS-CoV-2 infection: An update. Int Immunopharmacol 2021; 97:107686. [PMID: 33930705 PMCID: PMC8052476 DOI: 10.1016/j.intimp.2021.107686] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 02/07/2023]
Abstract
The ongoing severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic is having a disastrous impact on global health. Recently, several studies examined the potential of vitamin D to reduce the effects of SARS-CoV-2 infection by modulating the immune system. Indeed, vitamin D has been found to boost the innate immune system and stimulate the adaptive immune response against SARS-CoV-2 infection. In this review, we provide a comprehensive update of the immunological mechanisms underlying the positive effects of vitamin D in reducing SARS-CoV-2 infection as well as a thorough survey of the recent epidemiological studies and clinical trials that tested vitamin D as a potential therapeutic agent against COVID-19 infection. We believe that a better understanding of the histopathology and immunopathology of the disease as well as the mechanism of vitamin D effects on COVID-19 severity will ultimately pave the way for a more effective prevention and control of this global pandemic.
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Affiliation(s)
- Mohammad Shah Alam
- Department of Anatomy and Histology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.
| | - Daniel M Czajkowsky
- Bio-ID Centre, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Md Aminul Islam
- Department of Medicine, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
| | - Md Ataur Rahman
- Department of Surgery and Radiology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
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34
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Coultas JA, Cafferkey J, Mallia P, Johnston SL. Experimental Antiviral Therapeutic Studies for Human Rhinovirus Infections. J Exp Pharmacol 2021; 13:645-659. [PMID: 34276229 PMCID: PMC8277446 DOI: 10.2147/jep.s255211] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/01/2021] [Indexed: 12/17/2022] Open
Abstract
Rhinovirus infection is common and usually causes mild, self-limiting upper respiratory tract symptoms. Rhinoviruses can cause exacerbation of chronic respiratory diseases, such as asthma or chronic obstructive pulmonary disease, leading to a significant burden of morbidity and mortality. There has been a great deal of progress in efforts to understand the immunological basis of rhinovirus infection. However, despite a number of in vitro and in vivo attempts, there have been no effective treatments developed. This review article summarises the up to date virological and immunological understanding of these infections. We discuss the challenges researchers face, and key solutions, in their work to investigate potential therapies including in vivo rhinovirus challenge studies. Finally, we explore past and present experimental therapeutic strategies employed in the treatment of rhinovirus infections and highlight promising areas of future work.
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Affiliation(s)
- James A Coultas
- National Heart and Lung Institute, Imperial College London, London, UK
| | - John Cafferkey
- Respiratory Medicine, St Mary's Hospital, Imperial College Healthcare Foundation Trust, London, UK
| | - Patrick Mallia
- National Heart and Lung Institute, Imperial College London, London, UK
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35
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Seyfoori A, Shokrollahi Barough M, Mokarram P, Ahmadi M, Mehrbod P, Sheidary A, Madrakian T, Kiumarsi M, Walsh T, McAlinden KD, Ghosh CC, Sharma P, Zeki AA, Ghavami S, Akbari M. Emerging Advances of Nanotechnology in Drug and Vaccine Delivery against Viral Associated Respiratory Infectious Diseases (VARID). Int J Mol Sci 2021; 22:6937. [PMID: 34203268 PMCID: PMC8269337 DOI: 10.3390/ijms22136937] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/19/2021] [Accepted: 06/19/2021] [Indexed: 12/12/2022] Open
Abstract
Viral-associated respiratory infectious diseases are one of the most prominent subsets of respiratory failures, known as viral respiratory infections (VRI). VRIs are proceeded by an infection caused by viruses infecting the respiratory system. For the past 100 years, viral associated respiratory epidemics have been the most common cause of infectious disease worldwide. Due to several drawbacks of the current anti-viral treatments, such as drug resistance generation and non-targeting of viral proteins, the development of novel nanotherapeutic or nano-vaccine strategies can be considered essential. Due to their specific physical and biological properties, nanoparticles hold promising opportunities for both anti-viral treatments and vaccines against viral infections. Besides the specific physiological properties of the respiratory system, there is a significant demand for utilizing nano-designs in the production of vaccines or antiviral agents for airway-localized administration. SARS-CoV-2, as an immediate example of respiratory viruses, is an enveloped, positive-sense, single-stranded RNA virus belonging to the coronaviridae family. COVID-19 can lead to acute respiratory distress syndrome, similarly to other members of the coronaviridae. Hence, reviewing the current and past emerging nanotechnology-based medications on similar respiratory viral diseases can identify pathways towards generating novel SARS-CoV-2 nanotherapeutics and/or nano-vaccines.
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Affiliation(s)
- Amir Seyfoori
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada; (A.S.); (T.W.)
- Biomaterials and Tissue Engineering Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Mahdieh Shokrollahi Barough
- Department of Immunology, Iran University of Medical Sciences, Tehran 1449614535, Iran;
- ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran 1517964311, Iran
| | - Pooneh Mokarram
- Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran;
- Autophagy Research Center, Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
| | - Mazaher Ahmadi
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838695, Iran; (M.A.); (T.M.)
| | - Parvaneh Mehrbod
- Influenza and Respiratory Viruses Department, Pasteur Institute of IRAN, Tehran 1316943551, Iran;
| | - Alireza Sheidary
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14155-6451, Iran;
| | - Tayyebeh Madrakian
- Department of Analytical Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838695, Iran; (M.A.); (T.M.)
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 14155-6451, Iran;
| | - Mohammad Kiumarsi
- Department of Human Anatomy and Cell Science, Rady College of Medicine, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada;
| | - Tavia Walsh
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada; (A.S.); (T.W.)
| | - Kielan D. McAlinden
- Department of Laboratory Medicine, School of Health Sciences, University of Tasmania, Launceston, TAS 7248, Australia;
| | - Chandra C. Ghosh
- Roger Williams Medical Center, Immuno-Oncology Institute (Ix2), Providence, RI 02908, USA;
| | - Pawan Sharma
- Center for Translational Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107, USA;
| | - Amir A. Zeki
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, U.C. Davis Lung Center, Davis School of Medicine, University of California, Davis, CA 95817, USA;
- Veterans Affairs Medical Center, Mather, CA 95817, USA
| | - Saeid Ghavami
- Autophagy Research Center, Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz 7134845794, Iran
- Department of Human Anatomy and Cell Science, Rady College of Medicine, Max Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada;
- Biology of Breathing Theme, Children Hospital Research Institute of Manitoba, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
- Research Institute of Oncology and Hematology, Cancer Care Manitoba, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Mohsen Akbari
- Laboratory for Innovations in Micro Engineering (LiME), Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada; (A.S.); (T.W.)
- Biotechnology Center, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
- Center for Advanced Materials and Related Technologies, University of Victoria, Victoria, BC V8P 5C2, Canada
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36
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Ghosh SK, Weinberg A. Ramping Up Antimicrobial Peptides Against Severe Acute Respiratory Syndrome Coronavirus-2. Front Mol Biosci 2021; 8:620806. [PMID: 34235176 PMCID: PMC8255374 DOI: 10.3389/fmolb.2021.620806] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 05/27/2021] [Indexed: 12/17/2022] Open
Abstract
Human-derived antimicrobial peptides (AMPs), such as defensins and cathelicidin LL-37, are members of the innate immune system and play a crucial role in early pulmonary defense against viruses. These AMPs achieve viral inhibition through a variety of mechanisms including, but not limited to, direct binding to virions, binding to and modulating host cell-surface receptors, blocking viral replication, and aggregation of viral particles and indirectly by functioning as chemokines to enhance or curb adaptive immune responses. Given the fact that we are in a pandemic of unprecedented severity and the urgent need for therapeutic options to combat severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), naturally expressed AMPs and their derivatives have the potential to combat coronavirus disease 2019 (COVID-19) and impede viral infectivity in various ways. Provided the fact that development of effective treatments is an urgent public health priority, AMPs and their derivatives are being explored as potential prophylactic and therapeutic candidates. Additionally, cell-based platforms such as human mesenchymal stem cell (hMSC) therapy are showing success in saving the lives of severely ill patients infected with SARS-CoV-2. This could be partially due to AMPs released from hMSCs that also act as immunological rheostats to modulate the host inflammatory response. This review highlights the utilization of AMPs in strategies that could be implemented as novel therapeutics, either alone or in combination with other platforms, to treat CoV-2-infected individuals.
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Affiliation(s)
| | - Aaron Weinberg
- Department of Biological Sciences, Case Western Reserve University, Cleveland, OH, United States
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Papadaki M, Marmarinos A, Tsolia M, Gourgiotis D, Soldatou A. Cathelicidin levels in nasal secretions are associated with the severity of acute bronchiolitis. Pediatr Pulmonol 2021; 56:1673-1680. [PMID: 33656266 DOI: 10.1002/ppul.25349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/29/2021] [Accepted: 02/28/2021] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To investigate the association of serum vitamin D and nasal secretion antimicrobial peptides (AMPs) levels with the severity of acute bronchiolitis. STUDY DESIGN We conducted a prospective single pediatric tertiary care center cohort study of inpatients aged 0-18 months with a first episode of acute bronchiolitis from November 1st 2014 to April 30th 2017. Disease severity was determined by the length of hospitalization and supplemental hospital data. Qualitative measurements included serum 25(OH)D and nasal secretion LL-37 and β-defensin-2 levels. Correlations were examined with the Mann-Whitney and Kruskal-Wallis criteria for qualitative and the correlation coefficient Spearman's rho for quantitative factors. Multiple linear and logarithmic regression were performed to adjust for confounding factors. RESULTS The study population consisted of 153 infants and toddlers with median age 3.1 months (interquartile range:1.6-4.9). No association was found between serum 25(OH)D and AMPs nasal secretions levels. Serum 25(OH)D and nasal secretion β-defensin-2 levels were not associated with the severity of bronchiolitis. In contrast, LL-37 levels were inversely associated with the length of hospitalization (rho = -0.340, p = .001), the need for medication use (p = .001), as well as the duration of oxygen supplementation (rho = -0.339, p = .001), and intravenous fluid administration (rho = -0.323, p = .001). This association remained significant after adjustment for potential confounders. CONCLUSION A significant association between LL-37 nasal secretions levels with the severity of acute bronchiolitis was found in hospitalized infants and toddlers. The role of LL-37 in the pathogenesis of bronchiolitis merits further investigation.
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Affiliation(s)
- Maria Papadaki
- 2nd Department of Pediatrics, Children's Hospital of Athens "P. & A. Kyriakou", National and Kapodistrian University of Athens, Athens, Greece
| | - Antonios Marmarinos
- 2nd Department of Pediatrics, Laboratory of Clinical Biochemistry - Molecular Diagnostics, Children's Hospital of Athens "P. & A. Kyriakou", National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Tsolia
- 2nd Department of Pediatrics, Children's Hospital of Athens "P. & A. Kyriakou", National and Kapodistrian University of Athens, Athens, Greece
| | - Dimitrios Gourgiotis
- 2nd Department of Pediatrics, Laboratory of Clinical Biochemistry - Molecular Diagnostics, Children's Hospital of Athens "P. & A. Kyriakou", National and Kapodistrian University of Athens, Athens, Greece
| | - Alexandra Soldatou
- 2nd Department of Pediatrics, Children's Hospital of Athens "P. & A. Kyriakou", National and Kapodistrian University of Athens, Athens, Greece
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Verheije MH, Coorens M, Weerts EAWS, Berends AJ, Harten RM, Angel M, Kooij J, Ordonez SR, Beurden SJ, Dijk A, Haagsman HP, Veldhuizen EJA. Antiviral activity of selected cathelicidins against infectious bronchitis virus. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. Hélène Verheije
- Department of Biomolecular Health Sciences, Division Pathology, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Maarten Coorens
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Erik A. W. S. Weerts
- Department of Biomolecular Health Sciences, Division Pathology, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Alinda J. Berends
- Department of Biomolecular Health Sciences, Division Pathology, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Roel M. Harten
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Marloes Angel
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Jannetje Kooij
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Soledad R. Ordonez
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Steven J. Beurden
- Department of Biomolecular Health Sciences, Division Pathology, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Albert Dijk
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Henk P. Haagsman
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine Utrecht University The Netherlands
| | - Edwin J. A. Veldhuizen
- Department of Biomolecular Health Sciences, Division Infectious Diseases and Immunology, Section Immunology, Faculty of Veterinary Medicine Utrecht University The Netherlands
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Charoenngam N, Shirvani A, Holick MF. Vitamin D and Its Potential Benefit for the COVID-19 Pandemic. Endocr Pract 2021; 27:484-493. [PMID: 33744444 PMCID: PMC7965847 DOI: 10.1016/j.eprac.2021.03.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/18/2021] [Accepted: 03/06/2021] [Indexed: 12/11/2022]
Abstract
Vitamin D is known not only for its importance for bone health but also for its biologic activities on many other organ systems. This is due to the presence of the vitamin D receptor in various types of cells and tissues, including the skin, skeletal muscle, adipose tissue, endocrine pancreas, immune cells, and blood vessels. Experimental studies have shown that vitamin D exerts several actions that are thought to be protective against coronavirus disease (COVID-19) infectivity and severity. These include the immunomodulatory effects on the innate and adaptive immune systems, the regulatory effects on the renin-angiotensin-aldosterone-system in the kidneys and the lungs, and the protective effects against endothelial dysfunction and thrombosis. Prior to the COVID-19 pandemic, studies have shown that vitamin D supplementation is beneficial in protecting against risk of acquiring acute respiratory viral infection and may improve outcomes in sepsis and critically ill patients. There are a growing number of data connecting COVID-19 infectivity and severity with vitamin D status, suggesting a potential benefit of vitamin D supplementation for primary prevention or as an adjunctive treatment of COVID-19. Although the results from most ongoing randomized clinical trials aiming to prove the benefit of vitamin D supplementation for these purposes are still pending, there is no downside to increasing vitamin D intake and having sensible sunlight exposure to maintain serum 25-hydroxyvitamin D at a level of least 30 ng/mL (75 nmol/L) and preferably 40 to 60 ng/mL (100-150 nmol/L) to minimize the risk of COVID-19 infection and its severity.
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Affiliation(s)
- Nipith Charoenngam
- Section Endocrinology, Diabetes, Nutrition and Weight Management, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts; Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
| | - Arash Shirvani
- Section Endocrinology, Diabetes, Nutrition and Weight Management, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Michael F Holick
- Section Endocrinology, Diabetes, Nutrition and Weight Management, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts.
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40
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Ashaolu TJ, Nawaz A, Walayat N, Khalifa I. Potential "biopeptidal" therapeutics for severe respiratory syndrome coronaviruses: a review of antiviral peptides, viral mechanisms, and prospective needs. Appl Microbiol Biotechnol 2021; 105:3457-3470. [PMID: 33876282 PMCID: PMC8054851 DOI: 10.1007/s00253-021-11267-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/25/2021] [Accepted: 04/04/2021] [Indexed: 01/10/2023]
Abstract
Although great advances have been made on large-scale manufacturing of vaccines and antiviral-based drugs, viruses persist as the major cause of human diseases nowadays. The recent pandemic of coronavirus disease-2019 (COVID-19) mounts a lot of stress on the healthcare sector and the scientific society to search continuously for novel components with antiviral possibility. Herein, we narrated the different tactics of using biopeptides as antiviral molecules that could be used as an interesting alternative to treat COVID-19 patients. The number of peptides with antiviral effects is still low, but such peptides already displayed huge potentials to become pharmaceutically obtainable as antiviral medications. Studies showed that animal venoms, mammals, plant, and artificial sources are the main sources of antiviral peptides, when bioinformatics tools are used. This review spotlights bioactive peptides with antiviral activities against human viruses, especially the coronaviruses such as severe acute respiratory syndrome (SARS) virus, Middle East respiratory syndrome (MERS) virus, and severe acute respiratory syndrome coronavirus 2 (SARS-COV-2 or SARS-nCOV19). We also showed the data about well-recognized peptides that are still under investigations, while presenting the most potent ones that may become medications for clinical use.
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Affiliation(s)
- Tolulope Joshua Ashaolu
- Institute of Research and Development, Duy Tan University, Da Nang, 550000 Vietnam
- Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000 Vietnam
| | - Asad Nawaz
- Jiangsu Key Laboratory of Crop Genetics and Physiology, Key Laboratory of Plant Functional Genomics of the Ministry of Education, College of Agriculture, Yangzhou University, Yangzhou, People’s Republic of China
| | - Noman Walayat
- Department of Food Science and Engineering, College of Ocean, Zhejiang University of Technology, Hangzhou, People’s Republic of China
| | - Ibrahim Khalifa
- Food Technology Department, Faculty of Agriculture, Banha University, 13736, Moshtohor, Cairo, Egypt
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41
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Yu J, Dai Y, Fu Y, Wang K, Yang Y, Li M, Xu W, Wei L. Cathelicidin antimicrobial peptides suppress EV71 infection via regulating antiviral response and inhibiting viral binding. Antiviral Res 2021; 187:105021. [PMID: 33508330 DOI: 10.1016/j.antiviral.2021.105021] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 12/27/2022]
Abstract
Cathelicidin antimicrobial peptides (human LL-37 and mouse CRAMP) are mainly virucidal to enveloped virus. However, the effects and relative mechanisms of LL-37 and CRAMP on non-enveloped virus are elusive. We herein found that CRAMP expression was significantly up-regulated post non-enveloped Enterovirus 71 (EV71) infection in different tissues of newborn ICR mice, while EV71 replication gradually declined post CRAMP up-regulation, indicating the antiviral potential of cathelicidin against EV71. In vitro antiviral assay showed that LL-37 and CRAMP markedly reduced cytopathic effects (CPE), intracellular viral RNA copy numbers, viral VP1 protein levels, and extracellular virons in U251 cells post EV71 infection, indicating that LL-37 and CRAMP significantly inhibited EV71 replication. Mechanism of action assay showed that LL-37 and CRAMP were not virucidal to EV71, but markedly regulated antiviral immune response in U251 cells. Co-incubation of LL-37 or CRAMP with U251 cells markedly increased the basal interferon-β (IFN-β) expression and interferon regulatory transcription factor 3 (IRF3) phosphorylation, modestly enhanced IFN-β production and IRF3 phosphorylation upon EV71 infection, and significantly reduced interleukin-6 (IL-6) production and p38 mitogen-activated protein kinase (MAPK) activation post EV71 infection. Additionally, LL-37 and CRAMP directly inhibited viral binding to U251 cells. Collectively, LL-37 and CRAMP markedly inhibited EV71 replication via regulating antiviral response and inhibiting viral binding, providing potent candidates for peptide drug development against EV71 infection.
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Affiliation(s)
- Jie Yu
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yue Dai
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yuxuan Fu
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Kezhen Wang
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yang Yang
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Min Li
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Wei Xu
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Lin Wei
- Jiangsu Key Laboratory of Infection and Immunity, Institutes of Biology and Medical Sciences, Soochow University, Suzhou, 215123, Jiangsu, China.
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Tanner A, Tiwari D, Allen S. Covid-19 Susceptibility and Severity Might be Modified by Vitamin D Status: Theoretical and Practical Considerations. CURRENT RESPIRATORY MEDICINE REVIEWS 2021. [DOI: 10.2174/1568009620999200924155221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background:
The recently identified SARS-CoV-2 coronavirus has resulted in the
Covid-19 pandemic with severe morbidity and high mortality, particularly in certain sections of the
population. The co-morbidity patterns associated with adverse outcomes are multiple and complex
and there is emerging epidemiological, nutritional and molecular biological evidence that an inadequate
vitamin D status is a contributing factor.
Objective:
The aim was to review the role of vitamin D in immune function with particular reference
to the mechanisms whereby it supports immune efficiency, host protection and immune modulation.
The evidence for the possible benefit of vitamin D supplementation to ameliorate the severity
of respiratory infection by SARS-CoV-2 and other pathogens was also reviewed with a view to
making a recommendation.
Methods:
PubMed, MEDLINE and Google Scholar were searched using the terms: Covid-19, coronavirus,
SARS-CoV-2, vitamin D, calcitriol, deficiency, adaptive immunity, innate immunity, ventilation,
critical care, intensive care, acute respiratory distress syndrome, cytokine storm, respiratory
viruses, respiratory tract infection, respiratory syncytial virus, influenza, supplementation. Papers
for inclusion were selected on the basis of relevance and quality.
Findings:
Vitamin D insufficiency is widespread in many parts of the world. Vitamin D is needed
for normal protective and surveillance immune function and there is evidence that deficiency increases
the risk of some respiratory infections, probably including Covid-19. By binding with dedicated
receptors on immune cells vitamin D influences several strands of immune function, including
the production of anti-microbial peptides and several cytokines that promote an appropriate immune
response. Vitamin D supplementation probably reduces the risk of respiratory infection, with
persuasive biological, epidemiological and observational evidence for possible benefit against
Covid-19.
Conclusion:
Despite the lack of direct evidence specific to Covid-19 a cogent theoretical case can
be made for giving adults from selected groups, and arguably all adults, routine supplementation
with vitamin D to improve immune efficiency and reduce the incidence and severity of respiratory
infections. This could be particularly important in sections of the population with a high prevalence
of vitamin D insufficiency. Targeted research is required to provide firm evidence to guide practice.
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Affiliation(s)
- Alex Tanner
- The Royal Bournemouth Hospital, Dorset, United Kingdom
| | - Divya Tiwari
- The Royal Bournemouth Hospital, Dorset, United Kingdom
| | - Stephen Allen
- The Royal Bournemouth Hospital, Dorset, United Kingdom
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43
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Toraih EA, Sedhom JA, Dokunmu TM, Hussein MH, Ruiz EML, Muthusamy K, Zerfaoui M, Kandil E. Hidden in plain sight: The effects of BCG vaccination in the COVID-19 pandemic. J Med Virol 2020; 93:1950-1966. [PMID: 33289122 PMCID: PMC7753709 DOI: 10.1002/jmv.26707] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 12/11/2022]
Abstract
To investigate the relationship between Bacille Calmette‐Guérin (BCG) vaccination and SARS‐CoV‐2 by a bioinformatics approach, two datasets for the SARS‐CoV‐2 infection group and BCG‐vaccinated group were downloaded. Differentially Expressed Genes were identified. Gene ontology and pathways were functionally enriched, and networking was constructed in NetworkAnalyst. Lastly, the correlation between post‐BCG vaccination and COVID‐19 transcriptome signatures was established. A total of 161 DEGs (113 upregulated DEGs and 48 downregulated genes) were identified in the SARS‐CoV‐2 group. In the pathway enrichment analysis, a cross‐reference of upregulated Kyoto Encyclopedia of Genes and Genomes pathways in SARS‐CoV‐2 with downregulated counterparts in the BCG‐vaccinated group, resulted in the intersection of 45 common pathways, accounting for 86.5% of SARS‐CoV‐2 upregulated pathways. Of these intersecting pathways, a vast majority were immune and inflammatory pathways with top significance in interleukin‐17, tumor necrosis factor, NOD‐like receptors, and nuclear factor‐κB signaling pathways. Given the inverse relationship of the specific differentially expressed gene pathways highlighted in our results, the BCG‐vaccine may play a protective role against COVID‐19 by mounting a nonspecific immunological response and further investigation of this relationship is warranted.
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Affiliation(s)
- Eman A Toraih
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA.,Genetics Unit, Department of Histology and Cell Biology, Suez Canal University, Ismailia, Egypt
| | - Jessica A Sedhom
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Titilope M Dokunmu
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA.,College of Science and Technology, Department of Biochemistry, Covenant University, Ota, Nigeria
| | - Mohammad H Hussein
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Emmanuelle M L Ruiz
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | | | - Mourad Zerfaoui
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Emad Kandil
- Department of Surgery, Tulane University School of Medicine, New Orleans, Louisiana, USA
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Pen G, Yang N, Teng D, Mao R, Hao Y, Wang J. A Review on the Use of Antimicrobial Peptides to Combat Porcine Viruses. Antibiotics (Basel) 2020; 9:antibiotics9110801. [PMID: 33198242 PMCID: PMC7696308 DOI: 10.3390/antibiotics9110801] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 12/13/2022] Open
Abstract
Viral infectious diseases pose a serious threat to animal husbandry, especially in the pig industry. With the rapid, continuous variation of viruses, a series of therapeutic measures, including vaccines, have quickly lost their efficacy, leading to great losses for animal husbandry. Therefore, it is urgent to find new drugs with more stable and effective antiviral activity. Recently, it has been reported that antimicrobial peptides (AMPs) have great potential for development and application in animal husbandry because of their significant antibacterial and antiviral activity, and the antiviral ability of AMPs has become a research hotspot. This article aims to review the research situation of AMPs used to combat viruses in swine production of animal husbandry, clarify the mechanism of action of AMPs on viruses and raise some questions, and explore the future potential of AMPs in animal husbandry.
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Affiliation(s)
- Guihong Pen
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Na Yang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Correspondence: (N.Y.); (J.W.); Tel.: +86-10-82106081 (J.W.); Fax: +86-10-82106079 (J.W.)
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China; (G.P.); (D.T.); (R.M.); (Y.H.)
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing 100081, China
- Correspondence: (N.Y.); (J.W.); Tel.: +86-10-82106081 (J.W.); Fax: +86-10-82106079 (J.W.)
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Pahar B, Madonna S, Das A, Albanesi C, Girolomoni G. Immunomodulatory Role of the Antimicrobial LL-37 Peptide in Autoimmune Diseases and Viral Infections. Vaccines (Basel) 2020; 8:E517. [PMID: 32927756 PMCID: PMC7565865 DOI: 10.3390/vaccines8030517] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 12/11/2022] Open
Abstract
Antimicrobial peptides (AMPs) are produced by neutrophils, monocytes, and macrophages, as well as epithelial cells, and are an essential component of innate immunity system against infection, including several viral infections. AMPs, in particular the cathelicidin LL-37, also exert numerous immunomodulatory activities by inducing cytokine production and attracting and regulating the activity of immune cells. AMPs are scarcely expressed in normal skin, but their expression increases when skin is injured by external factors, such as trauma, inflammation, or infection. LL-37 complexed to self-DNA acts as autoantigen in psoriasis and lupus erythematosus (LE), where it also induces production of interferon by plasmocytoid dendritic cells and thus initiates a cascade of autocrine and paracrine processes, leading to a disease state. In these disorders, epidermal keratinocytes express high amounts of AMPs, which can lead to uncontrolled inflammation. Similarly, LL-37 had several favorable and unfavorable roles in virus replication and disease pathogenesis. Targeting the antiviral and immunomodulatory functions of LL-37 opens a new approach to limit virus dissemination and the progression of disease.
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Affiliation(s)
- Bapi Pahar
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA 70433, USA
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70118, USA
| | - Stefania Madonna
- IDI-IRCCS, Dermopathic Institute of the Immaculate IDI, 00167 Rome, Italy; (S.M.); (C.A.)
| | - Arpita Das
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA 70433, USA;
| | - Cristina Albanesi
- IDI-IRCCS, Dermopathic Institute of the Immaculate IDI, 00167 Rome, Italy; (S.M.); (C.A.)
| | - Giampiero Girolomoni
- Section of Dermatology, Department of Medicine, University of Verona, 37126 Verona, Italy;
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Lejeune S, Deschildre A, Le Rouzic O, Engelmann I, Dessein R, Pichavant M, Gosset P. Childhood asthma heterogeneity at the era of precision medicine: Modulating the immune response or the microbiota for the management of asthma attack. Biochem Pharmacol 2020; 179:114046. [PMID: 32446884 PMCID: PMC7242211 DOI: 10.1016/j.bcp.2020.114046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 05/19/2020] [Indexed: 12/12/2022]
Abstract
Exacerbations are a main characteristic of asthma. In childhood, the risk is increasing with severity. Exacerbations are a strong phenotypic marker, particularly of severe and therapy-resistant asthma. These early-life events may influence the evolution and be involved in lung function decline. In children, asthma attacks are facilitated by exposure to allergens and pollutants, but are mainly triggered by microbial agents. Multiple studies have assessed immune responses to viruses, and to a lesser extend bacteria, during asthma exacerbation. Research has identified impairment of innate immune responses in children, related to altered pathogen recognition, interferon release, or anti-viral response. Influence of this host-microbiota dialog on the adaptive immune response may be crucial, leading to the development of biased T helper (Th)2 inflammation. These dynamic interactions may impact the presentations of asthma attacks, and have long-term consequences. The aim of this review is to synthesize studies exploring immune mechanisms impairment against viruses and bacteria promoting asthma attacks in children. The potential influence of the nature of infectious agents and/or preexisting microbiota on the development of exacerbation is also addressed. We then discuss our understanding of how these diverse host-microbiota interactions in children may account for the heterogeneity of endotypes and clinical presentations. Finally, improving the knowledge of the pathophysiological processes induced by infections has led to offer new opportunities for the development of preventive or curative therapeutics for acute asthma. A better definition of asthma endotypes associated with precision medicine might lead to substantial progress in the management of severe childhood asthma.
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Affiliation(s)
- Stéphanie Lejeune
- CHU Lille, Univ. Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, F-59000 Lille, France; Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France
| | - Antoine Deschildre
- CHU Lille, Univ. Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, F-59000 Lille, France; Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France
| | - Olivier Le Rouzic
- Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France; CHU Lille, Univ. Lille, Department of Respiratory Diseases, F-59000 Lille Cedex, France
| | - Ilka Engelmann
- Univ. Lille, Virology Laboratory, EA3610, Institute of Microbiology, CHU Lille, F-59037 Lille Cedex, France
| | - Rodrigue Dessein
- Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France; Univ. Lille, Bacteriology Department, Institute of Microbiology, CHU Lille, F-59037 Lille Cedex, France
| | - Muriel Pichavant
- Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France
| | - Philippe Gosset
- Univ. Lille, INSERM Unit 1019, CNRS UMR 9017, CHU Lille, Institut Pasteur de Lille, Center for Infection and Immunity of Lille, F-59019 Lille Cedex, France.
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47
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Immunologic Effects of Vitamin D on Human Health and Disease. Nutrients 2020; 12:nu12072097. [PMID: 32679784 PMCID: PMC7400911 DOI: 10.3390/nu12072097] [Citation(s) in RCA: 430] [Impact Index Per Article: 107.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/09/2020] [Accepted: 07/12/2020] [Indexed: 02/06/2023] Open
Abstract
Vitamin D is responsible for regulation of calcium and phosphate metabolism and maintaining a healthy mineralized skeleton. It is also known as an immunomodulatory hormone. Experimental studies have shown that 1,25-dihydroxyvitamin D, the active form of vitamin D, exerts immunologic activities on multiple components of the innate and adaptive immune system as well as endothelial membrane stability. Association between low levels of serum 25-hydroxyvitamin D and increased risk of developing several immune-related diseases and disorders, including psoriasis, type 1 diabetes, multiple sclerosis, rheumatoid arthritis, tuberculosis, sepsis, respiratory infection, and COVID-19, has been observed. Accordingly, a number of clinical trials aiming to determine the efficacy of administration of vitamin D and its metabolites for treatment of these diseases have been conducted with variable outcomes. Interestingly, recent evidence suggests that some individuals might benefit from vitamin D more or less than others as high inter-individual difference in broad gene expression in human peripheral blood mononuclear cells in response to vitamin D supplementation has been observed. Although it is still debatable what level of serum 25-hydroxyvitamin D is optimal, it is advisable to increase vitamin D intake and have sensible sunlight exposure to maintain serum 25-hydroxyvitamin D at least 30 ng/mL (75 nmol/L), and preferably at 40-60 ng/mL (100-150 nmol/L) to achieve the optimal overall health benefits of vitamin D.
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48
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Schrumpf JA, van der Does AM, Hiemstra PS. Impact of the Local Inflammatory Environment on Mucosal Vitamin D Metabolism and Signaling in Chronic Inflammatory Lung Diseases. Front Immunol 2020; 11:1433. [PMID: 32754156 PMCID: PMC7366846 DOI: 10.3389/fimmu.2020.01433] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023] Open
Abstract
Vitamin D plays an active role in the modulation of innate and adaptive immune responses as well as in the protection against respiratory pathogens. Evidence for this immunomodulatory and protective role is derived from observational studies showing an association between vitamin D deficiency, chronic airway diseases and respiratory infections, and is supported by a range of experimental studies using cell culture and animal models. Furthermore, recent intervention studies have now shown that vitamin D supplementation reduces exacerbation rates in vitamin D-deficient patients with chronic obstructive pulmonary disease (COPD) or asthma and decreases the incidence of acute respiratory tract infections. The active vitamin D metabolite, 1,25-dihydroxy-vitamin D (1,25(OH)2D), is known to contribute to the integrity of the mucosal barrier, promote killing of pathogens (via the induction of antimicrobial peptides), and to modulate inflammation and immune responses. These mechanisms may partly explain its protective role against infections and exacerbations in COPD and asthma patients. The respiratory mucosa is an important site of local 1,25(OH)2D synthesis, degradation and signaling, a process that can be affected by exposure to inflammatory mediators. As a consequence, mucosal inflammation and other disease-associated factors, as observed in e.g., COPD and asthma, may modulate the protective actions of 1,25(OH)2D. Here, we discuss the potential consequences of various disease-associated processes such as inflammation and exposure to pathogens and inhaled toxicants on vitamin D metabolism and local responses to 1,25(OH)2D in both immune- and epithelial cells. We furthermore discuss potential consequences of disturbed local levels of 25(OH)D and 1,25(OH)2D for chronic lung diseases. Additional insight into the relationship between disease-associated mechanisms and local effects of 1,25(OH)2D is expected to contribute to the design of future strategies aimed at improving local levels of 1,25(OH)2D and signaling in chronic inflammatory lung diseases.
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Affiliation(s)
- Jasmijn A Schrumpf
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
| | - Anne M van der Does
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, Netherlands
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49
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Chessa C, Bodet C, Jousselin C, Wehbe M, Lévêque N, Garcia M. Antiviral and Immunomodulatory Properties of Antimicrobial Peptides Produced by Human Keratinocytes. Front Microbiol 2020; 11:1155. [PMID: 32582097 PMCID: PMC7283518 DOI: 10.3389/fmicb.2020.01155] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 05/06/2020] [Indexed: 12/15/2022] Open
Abstract
Keratinocytes, the main cells of the epidermis, are the first site of replication as well as the first line of defense against many viruses such as arboviruses, enteroviruses, herpes viruses, human papillomaviruses, or vaccinia virus. During viral replication, these cells can sense virus associated molecular patterns leading to the initiation of an innate immune response composed of pro-inflammatory cytokines, chemokines, and antimicrobial peptides. Human keratinocytes produce and secrete at least nine antimicrobial peptides: human cathelicidin LL-37, types 1–4 human β-defensins, S100 peptides such as psoriasin (S100A7), calprotectin (S100A8/9) and koebnerisin (S100A15), and RNase 7. These peptides can exert direct antiviral effects on the viral particle or its replication cycle, and indirect antiviral activity, by modulating the host immune response. The purpose of this review is to summarize current knowledge of antiviral and immunomodulatory properties of human keratinocyte antimicrobial peptides.
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Affiliation(s)
- Céline Chessa
- Laboratoire de Virologie et Mycobactériologie, CHU de Poitiers, Poitiers, France.,Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
| | - Charles Bodet
- Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
| | - Clément Jousselin
- Laboratoire de Virologie et Mycobactériologie, CHU de Poitiers, Poitiers, France.,Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
| | - Michel Wehbe
- Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
| | - Nicolas Lévêque
- Laboratoire de Virologie et Mycobactériologie, CHU de Poitiers, Poitiers, France.,Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
| | - Magali Garcia
- Laboratoire de Virologie et Mycobactériologie, CHU de Poitiers, Poitiers, France.,Laboratoire Inflammation, Tissus Epithéliaux et Cytokines, LITEC EA 4331, Université de Poitiers, Poitiers, France
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50
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Agarwal G, Gabrani R. Antiviral Peptides: Identification and Validation. Int J Pept Res Ther 2020; 27:149-168. [PMID: 32427225 PMCID: PMC7233194 DOI: 10.1007/s10989-020-10072-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/30/2020] [Accepted: 05/08/2020] [Indexed: 12/26/2022]
Abstract
Despite rapid advances in the human healthcare, the infection caused by certain viruses results in high morbidity and mortality accentuate the importance for development of new antivirals. The existing antiviral drugs are limited, due to their inadequate response, increased rate of resistance and several adverse side effects. Therefore, one of the newly emerging field “peptide-based therapeutics” against viruses is being explored and seems promising. Over the last few years, a lot of scientific effort has been made for the identification of novel and potential peptide-based therapeutics using various advanced technologies. Consequently, there are more than 60 approved peptide drugs available for sale in the market of United States, Europe, Japan, and some Asian countries. Moreover, the number of peptide drugs undergoing the clinical trials is rising gradually year by year. The peptide-based antiviral therapeutics have been approved for the Human immunodeficiency virus (HIV), Influenza virus and Hepatitis virus (B and C). This review enlightens the various peptide sources and the different approaches that have contributed to the search of potential antiviral peptides. These include computational approaches, natural and biological sources (library based high throughput screening) for the identification of lead peptide molecules against their target. Further the applications of few advanced techniques based on combinatorial chemistry and molecular biology have been illustrated to measure the binding parameters such as affinity and kinetics of the screened interacting partners. The employment of these advanced techniques can contribute to investigate antiviral peptide therapeutics for emerging infections.
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Affiliation(s)
- Garima Agarwal
- Department of Biotechnology, Center for Emerging Diseases, Jaypee Institute of Information Technology, Noida, UP 201309 India
| | - Reema Gabrani
- Department of Biotechnology, Center for Emerging Diseases, Jaypee Institute of Information Technology, Noida, UP 201309 India
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