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Li B, Hua C, Tian P, Sha Y, Zhang L, Wang Q, Lu L, Jiang S, Sui L. 25-hydroxycholesterol inhibits human papillomavirus infection in cervical epithelial cells by perturbing cytoskeletal remodeling. J Med Virol 2023; 95:e28834. [PMID: 37254637 DOI: 10.1002/jmv.28834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 06/01/2023]
Abstract
Persistent high-risk human papilloma virus (HR-HPV) infection is the main risk factor for cervical cancer, threatening women's health. Despite growing prophylactic vaccination, annual cervical cancer cases are still increasing and show a trend of younger onset age. However, therapeutic approaches towards HPV infection are still limited. 25-hydrocholesterol (25HC) has a wide-spectrum inhibitory effect on a variety of viruses. To explore efficient interventions to restrict HPV infection at an early time, we applied different pseudoviruses (PsV) to evaluate anti-HPV efficacy of 25HC. We tested PsV inhibition by 25HC in cervical epithelial-derived HeLa and C-33A cells, using high-risk (HPV16, HPV18, HPV59), possibly carcinogenic (HPV73), and low-risk (HPV6) HPV PsVs. Then we established murine genital HPV PsV infection models and applied IVIS to evaluate anti-HPV efficacy of 25HC in vivo. Next, with the help of confocal imaging, we targeted 25HC activity at filopodia upon HPV exposure. After that, we used RNA-seq and Western blot analysis to investigate (1) how 25HC disturbs actin cytoskeleton remodeling during HPV infection and (2) how prenylation regulates the cytoskeletal remodeling signaling pathway. Our findings suggest that 25HC perturbs F-actin rearrangement by reducing small GTPase prenylation. In this way, the phenomenon of HPV virion surfing was restricted, leading to failed infection.
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Affiliation(s)
- Boning Li
- The Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Medical Center of Diagnosis and Treatment for Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chen Hua
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Pu Tian
- The Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Medical Center of Diagnosis and Treatment for Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yiou Sha
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Lu Zhang
- The Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Medical Center of Diagnosis and Treatment for Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Qian Wang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity, Fudan University, Shanghai, China
| | - Long Sui
- The Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
- Medical Center of Diagnosis and Treatment for Cervical Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
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