2. Academic Validation
  3. Antiviral Activity of Selective Estrogen Receptor Modulators against Severe Fever with Thrombocytopenia Syndrome Virus In Vitro and In Vivo

Antiviral Activity of Selective Estrogen Receptor Modulators against Severe Fever with Thrombocytopenia Syndrome Virus In Vitro and In Vivo

  • Viruses. 2024 Aug 20;16(8):1332. doi: 10.3390/v16081332.
Xintong Yan 1 2 3,  Chongda Luo 1 2 3,  Jingjing Yang 1 2,  Zhuang Wang 3,  Yunfeng Shao 1 2 3,  Ping Wang 1 2 3,  Shaokang Yang 3,  Yuexiang Li 3,  Qingsong Dai 3,  Wei Li 3,  Xiaotong Yang 3,  Huimin Tao 3,  Sichen Ren 1 2 3,  Zhenyang Li 3,  Xiaojia Guo 3,  Siqi Li 3,  Weiyan Zhu 3,  Yan Luo 1 2 3,  Jiazheng Li 1 2 3,  Song Li 1 2 3,  Ruiyuan Cao 3,  Wu Zhong 3
Affiliations

Affiliations

  • 1 School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China.
  • 2 Song Li's Academician Workstation, School of Pharmaceutical Sciences, Hainan University, Yazhou Bay, Sanya 572000, China.
  • 3 National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China.
PMID: 39205306 DOI: 10.3390/v16081332
Abstract

Severe fever with thrombocytopenia syndrome virus (SFTSV), also known as the Dabie Banda virus, is an emerging tick-borne Bunyavirus that causes severe fever with thrombocytopenia syndrome (SFTS). Currently, symptomatic treatment and Antiviral therapy with ribavirin and favipiravir are used in clinical management. However, their therapeutical efficacy is hardly satisfactory in patients with high viral load. In this study, we explored the Antiviral effects of selective Estrogen Receptor modulators (SERMs) on SFTSV Infection and the Antiviral mechanisms of a representative SERM, bazedoxifene acetate (BZA). Our data show that SERMs potently inhibited SFTSV-induced cytopathic effect (CPE), the proliferation of infectious viral particles, and viral RNA replication and that BZA effectively protected mice from lethal viral challenge. The mode of action analysis reveals that BZA exerts Antiviral effects during the post-entry stage of SFTSV Infection. The transcriptome analysis reveals that GRASLND and CYP1A1 were upregulated, while TMEM45B and TXNIP were downregulated. Our findings suggest that SERMs have the potential to be used in the treatment of SFTSV Infection.

Keywords

antiviral; bazedoxifene acetate; selective estrogen receptor modulator; severe fever with thrombocytopenia syndrome virus.

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