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Tu T, Ajoyan H, Nur Umami R, Veeraraghavan V, Boldbaatar D, Najim MAM, Khan A, Bayoumi A, Ho V, Eslam M, Berg T, Chan HLY, George J, Douglas MW. Inhibition of cellular factor TM6SF2 suppresses secretion pathways of Hepatitis B, Hepatitis C and Hepatitis D viruses. J Infect Dis 2024:jiae098. [PMID: 38408366 DOI: 10.1093/infdis/jiae098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024] Open
Abstract
Chronic viral hepatitis is caused by hepatitis B virus, hepatitis C virus or hepatitis D virus (HBV, HCV, and HDV). Despite different replication strategies, all these viruses rely on secretion through the host endoplasmic reticulum-Golgi pathway, providing potential host targets for antiviral therapy. Knockdown of transmembrane 6 superfamily member 2 (TM6SF2) in virus cell culture models reduced secretion of infectious HCV virions, HDV virions and HBV subviral particles. Moreover, in a cohort of people with hepatitis B a TM6SF2 polymorphism (rs58542926 CT/TT, which causes protein misfolding and reduced TM6SF2 in the liver) correlated with lower concentrations of subviral particles in blood, complementing our previous work showing decreased HCV viral load in people with this polymorphism. In conclusion, the host protein TM6SF2 plays a key role in secretion of HBV, HCV and HDV, providing the potential for novel pan-viral agents to treat people with chronic viral hepatitis.
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Affiliation(s)
- Thomas Tu
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
- Centre for Infectious Diseases and Microbiology, Sydney Infectious Diseases Institute, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Harout Ajoyan
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Rifqiyah Nur Umami
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
- Research Center for Genetic Engineering, National Research and Innovation Agency (BRIN), Bogor, Indonesia
| | - Vaishnavi Veeraraghavan
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Delgerbat Boldbaatar
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Mustafa Ahmed M Najim
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Anis Khan
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Ali Bayoumi
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Vikki Ho
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Mohammed Eslam
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Thomas Berg
- Division of Hepatology, Department of Medicine II, Leipzig University Medical Centre, Germany
| | - Henry L Y Chan
- The Chinese University of Hong Kong, Shatin, NT , Hong Kong SAR, The People's Republic of China
- Union Hospital, Shatin, NT, Hong Kong SAR, The People's Republic of China
| | - Jacob George
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
| | - Mark W Douglas
- Storr Liver Centre, The Westmead Institute for Medical Research, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
- Centre for Infectious Diseases and Microbiology, Sydney Infectious Diseases Institute, The University of Sydney at Westmead Hospital, Westmead, NSW, Australia
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