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Despite different replication strategies, all of these viruses rely on secretion through the host endoplasmic reticulum\u2013Golgi 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.<\/jats:p>","DOI":"10.1093\/infdis\/jiae098","type":"journal-article","created":{"date-parts":[[2024,2,26]],"date-time":"2024-02-26T22:15:56Z","timestamp":1708985756000},"page":"970-981","source":"Crossref","is-referenced-by-count":2,"title":["Inhibition of Cellular Factor TM6SF2 Suppresses Secretion Pathways of Hepatitis B, Hepatitis C, and Hepatitis D Viruses"],"prefix":"10.1093","volume":"230","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0482-4387","authenticated-orcid":false,"given":"Thomas","family":"Tu","sequence":"first","affiliation":[{"name":"Storr Liver Centre, The Westmead Institute for Medical Research"},{"name":"Centre for Infectious Diseases and Microbiology, Sydney Infectious Diseases Institute, The University of Sydney at Westmead Hospital , Westmead, New South Wales 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