PMID- 33523405 OWN - NLM STAT- MEDLINE DCOM- 20211207 LR - 20211214 IS - 2299-5684 (Electronic) IS - 1734-1140 (Print) IS - 1734-1140 (Linking) VI - 73 IP - 3 DP - 2021 Jun TI - Memantine hydrochloride: a drug to be repurposed against Chikungunya virus? PG - 954-961 LID - 10.1007/s43440-021-00216-4 [doi] AB - BACKGROUND: Chikungunya fever is an endemic disease caused by the Chikungunya virus (CHIKV) to which there is no vaccine or effective antiviral drug treatment so far. Our study aimed to evaluate the potential anti-CHIKV activity of memantine hydrochloride (mtnH), a drug from the class of the aminoadamantanes approved for the treatment of Alzheimer s disease, as a possible drug to be repurposed to the treatment of Chikungunya fever. METHODS: MtnH antiviral activity against CHIKV was determined by infecting BHK-21 cells with CHIKV-nanoluc, a virus carrying the marker nanoluciferase reporter, in the presence or absence of mtnH at concentrations ranging from 500 to 1.45 microM. The effective concentration of 50% inhibition (EC(50)) was calculated. Cell viability assay (determination of CC(50)) was also performed employing BHK-21 cells. Mutagenic assays were performed by the Salmonella Typhimurium/microsome assay (Ames test). RESULTS: MtnH presented a CC(50) of 248.4 +/- 31.9 microM and an EC(50) of 32.4 +/- 4 microM against CHIKV in vitro. The calculated selectivity index (SI) was 7.67. MtnH did not induce genetic mutation in Salmonella strains with or without an external metabolizing system. CONCLUSION: With the data herein presented, it is possible to hypothesize mtnH as a viable candidate to be repurposed as an anti-CHIKV drug. Clinical assays are, therefore, encouraged due to the promising in vitro results. The drug memantine hydrochloride is herein personified with a doubt: as a prior regulated drug against Alzheimer, could it follow the path against Chikungunya virus too? FAU - Pereira, Anna Karla Dos Santos AU - Pereira AKDS AD - Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-871, Brazil. FAU - Santos, Igor A AU - Santos IA AD - Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, MG, 38405-302, Brazil. FAU - da Silva, Washington W AU - da Silva WW AD - Department of Biological and Health Sciences, University of Araraquara-UNIARA, Araraquara, SP, Brazil. FAU - Nogueira, Flavia A Resende AU - Nogueira FAR AD - Department of Biological and Health Sciences, University of Araraquara-UNIARA, Araraquara, SP, Brazil. FAU - Bergamini, Fernando R G AU - Bergamini FRG AUID- ORCID: 0000-0002-8357-3044 AD - Laboratory of Synthesis of Bioinspired Molecules, Institute of Chemistry, Federal University of Uberlandia, Uberlandia, MG, 34000-902, Brazil. bergamini@ufu.br. FAU - Jardim, Ana Carolina G AU - Jardim ACG AUID- ORCID: 0000-0002-6348-7923 AD - Laboratory of Virology, Institute of Biomedical Sciences, Federal University of Uberlandia, Uberlandia, MG, 38405-302, Brazil. jardim@ufu.br. FAU - Corbi, Pedro P AU - Corbi PP AUID- ORCID: 0000-0002-7478-0877 AD - Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, 13083-871, Brazil. ppcorbi@unicamp.br. LA - eng PT - Journal Article DEP - 20210201 PL - Switzerland TA - Pharmacol Rep JT - Pharmacological reports : PR JID - 101234999 RN - 0 (Antiviral Agents) RN - W8O17SJF3T (Memantine) SB - IM MH - Antiviral Agents/*pharmacology MH - Cell Line MH - Cell Survival/drug effects MH - Chikungunya Fever/*drug therapy/virology MH - Chikungunya virus/*drug effects MH - Humans MH - Memantine/*pharmacology PMC - PMC7848042 OTO - NOTNLM OT - Antiviral OT - Chikungunya virus OT - Drug OT - Memantine hydrochloride OT - Repurposing COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/02/02 06:00 MHDA- 2021/12/15 06:00 PMCR- 2021/02/01 CRDT- 2021/02/01 12:22 PHST- 2020/10/14 00:00 [received] PHST- 2021/01/05 00:00 [accepted] PHST- 2020/12/30 00:00 [revised] PHST- 2021/02/02 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/02/01 12:22 [entrez] PHST- 2021/02/01 00:00 [pmc-release] AID - 10.1007/s43440-021-00216-4 [pii] AID - 216 [pii] AID - 10.1007/s43440-021-00216-4 [doi] PST - ppublish SO - Pharmacol Rep. 2021 Jun;73(3):954-961. doi: 10.1007/s43440-021-00216-4. Epub 2021 Feb 1.