Abstract
Viral diseases are the cause of many global epidemics, leading to deaths, affecting the quality of life of populations, and impairing public health. The limitations in the treatment of viral diseases and the constant resistance to conventional antiviral treatments encourage researchers to discover new compounds. In this perspective, this literature review presents isolated molecules and extracts of natural products capable of inhibiting the activity of the nonstructural protein that acts as the RNA-dependent RNA polymerase. The literature review presented natural compounds with the potential to be tested as alternative medicines or used in the development of synthetic drugs to prevent the replication of RNA viruses, such as COVID-19, hepatitis C, and dengue viruses, among others. Natural products are known to exhibit remarkable activities in mitigation of different viral diseases, in addition, they help to decrease the aggravation of infections. Consequently, reducing hospitalization time and deaths.






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In fact, the inhibition of replication and transcription processes is a mechanism of action common to molecules capable of interfering with the activity of RdRp, present in RNA viruses. Flavonoids such as kaempterol, fisetin, hyperoside, afzelin, biorobin, myricitrin, astragalin, quercetin, quercetin-3-O-glycoside and quercitrin showed high affinity for RdRp using molecular docking.
Abbreviations
- COVID-19 :
-
Coronavirus disease 2019
- DAA :
-
Direct-acting antiviral
- DENV :
-
Dengue
- HCV :
-
Hepatitis C virus
- HIV-1 :
-
Human immunodeficiency 1
- MERS-CoV :
-
Middle East Respiratory Syndrome
- NSPs :
-
Nonstructural proteins
- PEG-IFN :
-
Pegylated interferon
- RdRp :
-
RNA-dependent RNA polymerase
- RdRp-DENV :
-
dengue virus RNA-dependent RNA polymerase
- RdRp-HCV :
-
hepatitis C virus RNA-dependent RNA polymerase
- SARS-CoV :
-
Severe Acute Respiratory Syndrome
- WNV :
-
West Nile virus
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Acknowledgements
This study was supported by CAPES (Coordenação de Aperfeiçoamento de Pessoal de Ensino Superior, Brazil)—Funding code 001 and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil). The authors would like to thank the Academic Publishing Advisory Center (Centro de Assessoria de Publicação Acadêmica, CAPA—www.capa.ufpr.br) of the Federal University of Paraná (UFPR) for assistance with English language translation and developmental editing. Thanks to Center National de la recherché Scientifique (CNRS-France) and to the University of Poitiers-France for support.
Author contributions
DRBL: Conceptualization, methodology, research, writing-original draft, writing-revision and editing, visualization, project administration, acquisition of financing. SPC: Research, original draft writing, acquisition of funding. KMM: Software, resources, data curation, acquisition of funding. FCMB: Formal analysis, acquisition of financing. EdBS: Formal analysis, acquisition of financing. FBM: Software, visualization, acquisition of financing. DPM: Conceptualization, acquisition of financing. JdFGD: Conceptualization, acquisition of financing. OGM: Conceptualization, acquisition of financing. MDM: Conceptualization, supervision, acquisition of financing.
Funding
DRBL, SPC, FBM, FCMB, and EdBS received funding from CAPES (Coordenação de Aperfeiçoamento de Pessoal de Ensino Superior, Brazil), KMM received funding from Center National de la recherche Scientifique (CNRS-France), DPM and JdFGD received funding from Universidade Federal do Paraná (UFPR), CAPES (Coordenação de Aperfeiçoamento de Pessoal de Ensino Superior, Brazil) and OGM and MDM received funding from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Universidade Federal do Paraná (UFPR).
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Leite, D.R.B., Mantovani, K.M., Cordeiro, S.P. et al. RNA-dependent RNA polymerase (RdRp) natural antiviral inhibitors: a review. Med Chem Res 31, 2089–2102 (2022). https://doi.org/10.1007/s00044-022-02963-2
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DOI: https://doi.org/10.1007/s00044-022-02963-2