miRNome analysis reveals mir-155-5p as a protective factor to dengue infection in a resistant Thai cohort
Issued Date
2025-12-01
Resource Type
ISSN
03008584
eISSN
14321831
Scopus ID
2-s2.0-85218445675
Journal Title
Medical Microbiology and Immunology
Volume
214
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Medical Microbiology and Immunology Vol.214 No.1 (2025)
Suggested Citation
Casadémont I., Ayala-Suárez R., Modhiran N., Tawfik A., Prot M., Paul R., Simon-Lorière E., Díez-Fuertes F., Ubol S., Alcamí J., Sakuntabhai A. miRNome analysis reveals mir-155-5p as a protective factor to dengue infection in a resistant Thai cohort. Medical Microbiology and Immunology Vol.214 No.1 (2025). doi:10.1007/s00430-025-00821-7 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/105498
Title
miRNome analysis reveals mir-155-5p as a protective factor to dengue infection in a resistant Thai cohort
Corresponding Author(s)
Other Contributor(s)
Abstract
Dengue virus (DENV) is a global health threat, with approximately 390 million infections annually, ranging from mild dengue fever to severe dengue hemorrhagic fever and shock syndrome. MicroRNA (miRNA) are crucial post-transcriptional regulators which may regulate host resistance to DENV infection. This study aimed to identify miRNAs involved in natural resistance to DENV infection. Individuals from a dengue-endemic area were classified as susceptible (SD) or resistant (RD) according to their anti-DENV antibody status. RD individuals were seronegative despite high local DENV infection prevalence. Monocytes susceptibility to DENV infection was assessed in vitro. The miRNome profiles of the monocytes from 7 individuals per group were assessed upon mock or DENV-2 infection. The antiviral effect of differentially expressed miRNAs was analyzed using miRNA mimics in HeLa cells followed by infection with DENV-1, DENV-2, DENV-3, and DENV-4 serotypes. We performed RNA-seq on miRNA mimic-transfected cells to identify miRNA-targeted genes interacting with DENV proteins. Monocytes from RD individuals exhibit lower DENV-2 production in vitro. The miRNAs miR-155, miR-132-3p, miR-576-5p were overexpressed in monocytes from RD group upon DENV-2 infection. The transfection of miR-155-5p mimic reduced DENV infection and viral production in HeLa cells, regulating 18 genes interacting with DENV proteins and downregulating target genes involved in interferon response, TP53 regulation, apoptosis, and vesicle trafficking (e.g. HSD17B12, ANXA2). Therefore, we show that monocytes from RD individuals show a distinct miRNA expression profile and reduced viral production. In vitro miR-155-5p upregulation induces an antiviral state, revealing potential therapeutic targets to treat dengue.