Study of the action of synthetic peptides as antivirals against SARS-CoV-2 (COVID-19) and combined evaluation with commercial anti-inflammatories

• Grant number: 20/12519-4
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: October 01, 2020
• End date: June 30, 2022
• Field of knowledge: Biological Sciences - Biochemistry - Chemistry of Macromolecules
• Principal Investigator: Eduardo Maffud Cilli
• Grantee: Paulo Ricardo da Silva Sanches
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Associated research grant: 20/05761-3 - Study of the action of synthetic peptides as antivirals against SARS-CoV-2 (COVID-19) and combined evaluation with commercial anti-inflammatories, AP.R

Abstract

Human pandemics, emerging and re-emerging viruses and the mutation of viral strains have been highlighting the importance for antiviral research. Pandemics, such as the actual caused by SARS-CoV-2, directly affect the world, mainly the public health, economy, tourism, etc. Also, due his high and fast spreading, this disease are saturating hospitals worldwide and the number of deaths are increasing constantly. Due the actual severe global health problem caused by SARS-CoV-2 and moved for the urgency for the development of treatments for this disease and future pandemics, the search for new compounds to treat infections by SARS-Cov-2 represents an important research area. Therefore, the objective of this project is identify and evaluate potential peptides able to inhibit virus SARS-CoV-2 infection progression in different steps of virus replication in vitro such as virucidal, receptor binding and cytoplasmic replication. Peptides and bioconjugates have been showing high antiviral potential in different steps of virus lifecycle. According to antiviral activity, compounds will be classified within groups (Virucidal, Inhibitor of receptor binding and inhibitor of cytoplasmic replication) and the action mechanism will be elucidate. Additionally, selected peptides will be evaluated together with anti-inflammatories (Ibuprofen and Ketoprofen) to evaluate the combination of antiviral and anti-inflammatory therapies. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FREIRE, MARJORIE C. L. C.; NOSKE, GABRIELA D.; BITENCOURT, NATALIA V.; SANCHES, PAULO R. S.; SANTOS-FILHO, NORIVAL A.; GAWRILJUK, VICTOR O.; DE SOUZA, EDUARDO P.; NOGUEIRA, VICTOR H. R.; DE GODOY, MARIANA O.; NAKAMURA, ALINE M.; et al. Non-Toxic Dimeric Peptides Derived from the Bothropstoxin-I Are Potent SARS-CoV-2 and Papain-like Protease Inhibitors. Molecules, v. 26, n. 16, AUG 2021. (18/17095-8, 20/04602-9, 13/07600-3, 20/05761-3, 20/12519-4, 18/25600-4, 16/19712-9, 16/13884-2, 18/13588-0)

SANCHES, PAULO R. S.; CHARLIE-SILVA, IVES; BRAZ, HELYSON L. B.; BITTAR, CINTIA; CALMON, MARILIA FREITAS; RAHAL, PAULA; CILLI, EDUARDO M.. Recent advances in SARS-CoV-2 Spike protein and RBD mutations comparison between new variants Alpha (B.1.1.7, United Kingdom), Beta (B.1.351, South Africa), Gamma (P.1, Brazil) and Delta (B.1.617.2, India). JOURNAL OF VIRUS ERADICATION, v. 7, n. 3, SEP 2021. (20/12519-4, 20/05761-3)

SANCHES, PAULO RICARDO DA SILVA; SANCHEZ-VELAZQUEZ, RICARDO; BATISTA, MARIANA NOGUEIRA; CARNEIRO, BRUNO MOREIRA; BITTAR, CINTIA; DE LORENZO, GIUDITTA; RAHAL, PAULA; PATEL, ARVIND H.; CILLI, EDUARDO MAFFUD. Antiviral Evaluation of New Synthetic Bioconjugates Based on GA-Hecate: A New Class of Antivirals Targeting Different Steps of Zika Virus Replication. Molecules, v. 28, n. 13, p. 20-pg., 2023-07-01. (13/07600-3, 22/05411-8, 15/23244-8, 20/05761-3, 20/12519-4, 19/08342-4)