Endophytes – untapped resources and pharmacological prospects against coronaviruses
DOI:
https://doi.org/10.15584/ejcem.2023.1.18Keywords:
coronaviruses, endophytes, endophytic fungi, SARS-CoV, natural productsAbstract
Introduction and aim. Viral infections stand to be among the most devastating diseases globally. Though significant efforts have been made in research and drug development against viral infections, the search for safe, affordable and effective vaccines against the current ravaging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is still on. This is because already approved vaccines still need improvement. This review draws the attention of researchers on the potentials of bioactive substances from endophytes against the novel coronaviruses.
Material and methods. This assessment was made using references of articles published in English peer reviewed journals indexed in PubMed and Google Scholars databases up to June, 2022. The following key words were used; ‘coronaviruses’, ‘Endophytes’, ‘Endophytes and viral infections, ‘Endophytes and COVID-19, ‘SARS-CoV’.
Analysis of the literature. In-silico, in-vitro and in-vivo studies revealed that natural compounds from endophytes showed antiviral activities against various human coronavirus, including HCoV 229E and a norovirus surrogate, the feline coronavirus FCV F9, COVID-19, Coronavirus 2 (SARS-CoV-2), SARSCoV-2 Mpro, among others.
Conclusion. This finding calls for researchers to also focus on endophytes, as part of drugs development in the bid to finding possible solution in combating the devastating COVID-19, an emerging situation.
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References
Manganyi MC, Ateba CN. Untapped Potentials of Endophytic Fungi: A Review of Novel Bioactive Compounds with Biological Applications. Microorganisms. 2020;8(12):1934. doi: 10.3390/microorganisms8121934.
Suryelita S, Riga R, Etika SB, Ulfah M, Artasasta MA. Antibacterial Screening of Endophytic Fungus Xylaria sp. derived from Andrographis paniculata (Sambiloto). Open-Access Maced J Med Sci. 2021; 9(A):971-975. doi: 10.3889/oamjms.2021.747.
Nalini MS, Prakash HS. Diversity and bioprospecting of actinomycete endophytes from the medicinal plants. Lett Appl Microbiol. 2017;64(4):261-270.
Kaur T. Fungal endophyte-host plant interactions: Role in sustainable agriculture. IntechOpen. 2020. doi: 10.5772/intechopen.92367.
Kogel K-H, Franken P, Hückelhoven R. Endophyte or parasite – what decides? Curr Opin Plant Biol. 2006;9(4):358-363. doi: 10.1016/j.pbi.2006.05.001.
Kusam LR, Divjot K, Tanvir K, et al. Microbial Endophytes. Functional Biology and Applications. 2020. doi: 10.1016/B978-0-12-819654-0.00011-9. 273-305.
Jie W, Feng C, Yumei L, et al. Comparative Metabolomics Revealed the Potential Antitumor Characteristics of Four Endophytic Fungi of Brassica rapa L. ACS Omega. 2020;5;5939-5950. doi: 10.1021/acsomega.9b04258.
Strobel G, Daisy B, Castillo U, Harper J. Natural products from endophytic microorganisms. J Nat Prod. 2004;67:257-268.
Afra K, Rosella S, Mihayl V, et al. Evaluation of Antiviral, Antibacterial and Antiproliferative Activities of the Endophytic Fungus Curvularia papendorfii, and Isolation of a New Polyhydroxyacid. Microorganisms. 2020;8:1353. doi: 10.3390/microorganisms8091353.
Islam MT, Sarkar C, El-Kersh DM, et al. Natural products and their derivatives against coronavirus: A review of the non‐clinical and pre‐clinical data. Phytoter Res. 2020;34:2471-2492.
Fehr AR, Perlman S. Coronaviruses: an overview of their replication and pathogenesis. Methods Mol Biol. 2015;1282:1-23.
Nakarin S, Jaturong K, Kanaporn S, Thanawat P, Chalermpong S, Saisamorn L. Natural Bioactive Compounds from Fungi as Potential Candidates for Protease Inhibitors and Immunomodulators to Apply for Coronaviruses. Molecules. 2020;25:1800. doi: 10.3390/molecules25081800.
Heymann, DL, Shindo, N. WHO Scientific and Technical Advisory Group for Infectious Hazards. COVID-19: What is next for public health? Lancet. 2022;395(10224):542-545. doi: 10.1016/S0140-6736(20)30374-3.
Khana MT, Alib A, Wangb Q, et al. Marine natural compounds as potents inhibitors against the main protease of SARS-CoV-2— a molecular dynamic study. J Biomol Struct Dyn. 2021;39(10):3627-3637. doi: 10.1080/07391102.2020.1769733.
Guarner, J. Three emerging coronaviruses in two decades: The story of SARS, MERS, and Now COVID-19. Am J Clin Pathol. 2020;153(4):420-421. doi: 10.1093/ajcp/aqaa029.
Hoteit R, Yassine HM. Biological Properties of SARS-CoV-2 Variants: Epidemiological Impact and Clinical Consequences. Vaccines. 2022;10:919. doi: 10.3390/ vaccines10060919.
Costa GD, Moreli ML, Saivish MV. The emergence of SARS, MERS and novel SARS 2 coronaviruses in the 21st century. Arch Virol. 2020;165:1517-1526. doi:10.1007/s00705-020-04628-0.
Zhu N, Zhang D, Wang W, et al. A novel coronavirus from patients with pneumonia in China, 2019. N Engl J Med. 2020;382:727-733. doi: 10.1056/NEJMoa2001017.
Xu J, Zhao S, Teng T, et al. Systematic comparison of two animal-to-human transmitted human coronaviruses: SARS-CoV-2 and SARS-CoV. Viruses. 2020;12:244. doi: 10.3390/v12020244.
World Health Organization. Director-General's opening remarks at the media briefing on COVID-19–11 March. Available from: https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19—11-march-2020.
Humeera N, Azra NK, Irshad AN, Sana S, Nowsheen S, Suhaib AB. Fungal endophytes as prolific source of phytochemicals and other bioactive natural products: A review. Microb Pathog. 2015;82:50-59. doi: 10.1016/j.micpath.2015.04.001.
Gupta S, Chaturvedi P, Kulkarni MG, Van Staden J. A critical review on exploiting the pharmaceutical potential of plant endophytic fungi. Biotechnol Adv. 2020;39:107462. doi: 10.1016/j.biotechadv.2019.107462.
Brahmbhatt RV. Herbal Medicines in management and prevention of Coronavirus Disease 2019 (COVID-19): A Research. Am J Phytomed Clin Ther. 2021;9(1):3. doi: 10.36648/2321-2748.1.353.
Ainsworth S, Menzies S, Pleass RJ. Animal derived antibodies should be considered alongside convalescent human plasma to deliver treatments for COVID-19. Wellcome Open Research. 2020;5:115. doi: 10.12688/wellcomeopenres.15990.1
Zaporozhets TS, Besednova NN. Biologically active compounds from marine organisms in the strategies for combating coronaviruses. AIMS Microbiology. 2020;6(4):470-494. doi: 10.3934/microbiol.2020028.
Zhang G, Sun S, Zhu T, et al. Antiviral isoindolone derivatives from an endophytic fungus Emericella sp. associated with Aegiceras corniculatum. Phytochem. 2011;72:1436-1442. doi: 10.1016/j.phytochem.2011.04.014.
Zhang SP, Huang R. Li, FF, et al. Antiviral anthraquinones and azaphilones produced by an endophytic fungus Nigrospora sp. Aconitum carmichaeli. Fitoterapia. 2016;112:85-89.
Liu SS, Jiang JX, Huang R, et al. A new antiviral 14-nordrimane sesquiterpenoid from an endophytic fungus Phoma sp. Phytochem. Lett. 2019;29:75-78.
Shou-Peng Z, Rong H, Fang-Fang L, et al. Antiviral anthraquinones and azaphilones produced by an endophytic fungus Nigrospora sp. from Aconitum carmichaeli. Fitoterapia. 2016;112:85-89. https://doi.org/10.1016/j.fitote.2016.05.013.
Xiaogang P, Fangfang D, Yangzhou H, et al. Ergocytochalasin A, a polycyclic merocytochalasan from an endophytic fungus Phoma multirostrata XJ-2-1. Org Biomol Chem. 2020;18:4056-4062. doi: 10.1039/d0ob00701c.
Hawas UW, Al-Farawati R. Chemical constituents and antiviral activity from marine endophytic fungi from Red Sea alga Padina pavonica. J Chem Soc Pak. 2017;39:478.
Raekiansyah M, Mori M, Nonaka K, et al. Identification of novel antiviral of fungus-derived brefeldin A against dengue viruses. Trop Med Health. 2017;45:32.
He JW, Chen GD, Gao H, et al. Heptaketides with antiviral activity from three endolichenic fungal strains Nigrospora sp., Alternaria sp. and Phialophora sp. Fitoterapia. 2012;83:1087-1091.
Min Z, Gang D, Hai-Ying Y, et al. Antiviral butyrolactones from the endophytic fungus Aspergillus versicolor. Planta Med. 2015;81(3):235-240. doi: 10.1055/s-0034-1396153.
Min Z, Kun Z, Pei H, et al. Antiviral and Cytotoxic Isocoumarin Derivatives from an Endophytic Fungus Aspergillus oryzae. Planta Med. 2016;82(5):414-417. doi: 10.1055/s-0035-1558331.
Selim KA, Elkhateeb WA, Tawila AM, et al. Antiviral and antioxidant potential of fungal endophytes of Egyptian medicinal plants. Fermentation. 2018;4:49.
Yang Z, Wu K, Xu Y, et al. Three novel chromanones with biological activities from the endophytic fungus. Phomopsis CGMCC No. 5416. J Antibiot. 2020;73:194-199.
Bharat PB, Brian PW, Rajesh R, Stanley HF, Nafees A, Leslie GAA. Altertoxins with potent anti-HIV activity from Alternaria tenuissima QUE1Se, a fungal endophyte of Quercus emoryi. Bioorg Med Chem. 2014;22(21):6112-6116. doi: 10.1016/j.bmc.2014.08.039.
Rajveer S, Anupam G, Shivani C, et al. Protease Inhibitory Effect of Natural Polyphenolic Compounds on SARS-CoV-2: An In Silico Study. Molecules. 2020;25(20):4604. doi: 10.3390/molecules25204604.
El-Hawary SS, Mohammed R, Bahr HS, et al. Soybean-associated endophytic fungi as potential source for anti-COVID-19 metabolites supported by docking analysis. J Appl Microbiol. 2021;131(3):1193-1211. doi: 10.1111/jam.15031.
Yi D, Xiaojing Z, Liling H, Mengyao Z, Qiang H, Faliang A. Bioactive Indolyl Diketopiperazines from the Marine Derived Endophytic Aspergillus versicolor DY180635. Mar Drugs. 2020;18:338. doi: 10.3390/md18070338.
Youssef FS, Alshammari E, Ashour ML. Bioactive Alkaloids from Genus Aspergillus: Mechanistic Interpretation of Their Antimicrobial and Potential SARS-CoV-2 Inhibitory Activity Using Molecular Modelling. Int J Mol Sci. 2021;22:1866. doi: 10.3390/ijms22041866.
Saied EM, El-Maradny YA, Osman AA, et al. A Comprehensive Review about the Molecular Structure of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2): Insights into Natural Products against COVID-19. Pharmaceutics. 2021;13:1759. doi: 10.3390/pharmaceutics13111759.
Thissera B, Sayed AM, Hassan MHA, et al. Bioguided Isolation of Cyclopenin Analogues as Potential SARS-CoV-2 Mpro Inhibitors from Penicillium citrinum TDPEF34. Biomolecules. 2021;11:1366. doi: 10.3390/biom11091366.
Patel RS, Vanzara AG, Patel NR, Vasava AM, Patil SM, Rajput KS. In-silico Discovery of Fungal Metabolites Bergenin, Quercitrin and Dihydroartemisinin as Potential Inhibitors against Main Protease of SARS-CoV-2. Coronaviruses. 2020;1:1-23.
Patel DK, Patel K, Kumar R, Gadewar M, Tahilyani V. Pharmacological and analytical aspects of bergenin: A concise report. Asian Pacific J Trop Dis. 2012;2:163-167.
Liang XX, Zhang XJ, Zhao YX, et al. Aspulvins A-H, Aspulvinone Analogues with SARS-CoV-2 Mpro Inhibitory and Anti-inflammatory Activities from an Endophytic Cladosporium sp. J Nat Prod. 2022;85(4):878–87. doi: 10.1021/acs.jnatprod.1c01003.
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