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Historically, HEV was described as a hepatotropic virus, but has recently been associated with various extrahepatic manifestations including neurological disorders such as Guillain\u2013Barr\u00e9 syndrome and neuralgic amyotrophy. However, the underlying pathogenesis of these neurological diseases remains largely unknown. The aim of this study was to investigate extrahepatic HEV manifestations in a neuronal model system using human-induced primary neurons (iPNs). Renal epithelial cells from human urine were reprogrammed to induced pluripotent stem cells to generate neuronal progenitor cells, which were subsequently differentiated into iPNs over 21 d. These iPNs supported HEV infection preferentially in neurite-bearing cells. Transcriptional profiling of the neuronal development process as well as viral infection dynamics in iPNs uncovered a lack of antiviral innate immune responses to HEV infection with only an intrinsic expression of distinct interferon-regulated genes and signaling molecules. Viral open reading frame 2 encoded capsid protein could be visualized by volumetric three-dimensional reconstitution within the neurites, which were reduced in length in an HEV inoculation-dependent manner. In conclusion, this neuron-derived human model system provides a powerful tool for studying extrahepatic manifestations of HEV infection. It further indicates a potential mechanism of pathogenesis driven by the interaction between host and viral factors.<\/jats:p>","DOI":"10.1073\/pnas.2411434121","type":"journal-article","created":{"date-parts":[[2024,11,15]],"date-time":"2024-11-15T13:44:13Z","timestamp":1731678253000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":12,"title":["Modeling extrahepatic hepatitis E virus infection in induced human primary neurons"],"prefix":"10.1073","volume":"121","author":[{"given":"Michelle","family":"Jagst","sequence":"first","affiliation":[{"name":"Department for Molecular and Medical Virology, Institute for Hygiene and Microbiology, Ruhr University Bochum, Bochum 44801, Germany"},{"name":"Institute of Virology, University of Veterinary Medicine Hannover, Hannover 30559, 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