Research Article

The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells

Volume: 54 Number: 1 December 31, 2025
EN TR

The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells

Abstract

Favipiravir is a nucleoside analog that is a selective and potent inhibitor of influenza virus RNA-dependent RNA polymerase (RdRp). This drug is considered to be a potential inhibitor of RNA viruses other than influenza due to its effect on the RdRp. In this study, we evaluated the effects of favipiravir on expression of interferon-related genes in alveolar epithelial cells (A549 and BEAS-2B) which produce various types of chemokines. The cytotoxicity and anti-RdRp activity of favipiravir were examined by MTT and virus minireplicon assays, respectively. Favipiravir strongly inhibited human (A/WSN/33-H1N1) and avian type of influenza (A/duck/Pennsylvania-H5N2) virus RdRp at nontoxic doses. The gene transcripts in the cells treated with different doses of favipiravir were analyzed by qPCR and immunoblotting. While CCL2, CAV1 and PRKCZ genes were among the most downregulated genes; IFNB1, IFNE and IL10 genes were the most upregulated in favipiravir-treated cells. The CCL2 and INFB1 transcripts were the most significantly differentiated by favipiravir treatment. The BEAS-2B cells were less sensitive to favipiravir-treatment compared to A549. From this result, it was concluded that favipiravir, while primarily inhibiting the viral RdRp, may also affect cellular interferon defense mechanisms and interfere with virus replication.

Keywords

Ethical Statement

No material requiring ethical approval was used in this study. The authors declare that there is no conflict of interest that could be perceived as prejudicial to the impartiality of the reported research.

Thanks

I would greatly appreciate for your consideration of the manuscript for publication in Hacettepe Journal of Biology and Chemistry.

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Details

Primary Language

English

Subjects

Enzymes, Gene Expression, Genetics (Other)

Journal Section

Research Article

Publication Date

December 31, 2025

Submission Date

July 16, 2025

Acceptance Date

October 14, 2025

Published in Issue

Year 2026 Volume: 54 Number: 1

APA
Turan, K., Çağlayan, E., Ulupınar, P., & Koçmar, T. (2025). The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells. Hacettepe Journal of Biology and Chemistry, 54(1), 37-45. https://doi.org/10.15671/hjbc.1743325
AMA
1.Turan K, Çağlayan E, Ulupınar P, Koçmar T. The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells. HJBC. 2025;54(1):37-45. doi:10.15671/hjbc.1743325
Chicago
Turan, Kadir, Elif Çağlayan, Pınar Ulupınar, and Tuğba Koçmar. 2025. “The Effect of Favipiravir on Interferon Related Gene Expression in Human Alveolar Epithelial Cells”. Hacettepe Journal of Biology and Chemistry 54 (1): 37-45. https://doi.org/10.15671/hjbc.1743325.
EndNote
Turan K, Çağlayan E, Ulupınar P, Koçmar T (December 1, 2025) The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells. Hacettepe Journal of Biology and Chemistry 54 1 37–45.
IEEE
[1]K. Turan, E. Çağlayan, P. Ulupınar, and T. Koçmar, “The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells”, HJBC, vol. 54, no. 1, pp. 37–45, Dec. 2025, doi: 10.15671/hjbc.1743325.
ISNAD
Turan, Kadir - Çağlayan, Elif - Ulupınar, Pınar - Koçmar, Tuğba. “The Effect of Favipiravir on Interferon Related Gene Expression in Human Alveolar Epithelial Cells”. Hacettepe Journal of Biology and Chemistry 54/1 (December 1, 2025): 37-45. https://doi.org/10.15671/hjbc.1743325.
JAMA
1.Turan K, Çağlayan E, Ulupınar P, Koçmar T. The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells. HJBC. 2025;54:37–45.
MLA
Turan, Kadir, et al. “The Effect of Favipiravir on Interferon Related Gene Expression in Human Alveolar Epithelial Cells”. Hacettepe Journal of Biology and Chemistry, vol. 54, no. 1, Dec. 2025, pp. 37-45, doi:10.15671/hjbc.1743325.
Vancouver
1.Kadir Turan, Elif Çağlayan, Pınar Ulupınar, Tuğba Koçmar. The effect of favipiravir on interferon related gene expression in human alveolar epithelial cells. HJBC. 2025 Dec. 1;54(1):37-45. doi:10.15671/hjbc.1743325

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