• Medientyp: E-Artikel
  • Titel: Monitoring reversion of hepatitis C virus-induced cellular alterations by direct-acting antivirals using cryo soft X-ray tomography and infrared microscopy
  • Beteiligte: Perez-Berna, Ana J.; Benseny-Cases, Nuria; Rodríguez, María José; Valcarcel, Ricardo; Carrascosa, José L.; Gastaminza, Pablo; Pereiro, Eva
  • Erschienen: International Union of Crystallography (IUCr), 2021
  • Erschienen in: Acta Crystallographica Section D Structural Biology
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1107/s2059798321009955
  • ISSN: 2059-7983
  • Schlagwörter: Structural Biology
  • Entstehung:
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  • Beschreibung: <jats:p>Hepatitis C virus (HCV) is an enveloped RNA virus. One of the hallmarks of HCV infection is a rearrangement of the host cell membranes, known as the `membranous web'. Full-field cryo soft X-ray tomography (cryo-SXT) in the water-window energy range (284–543 eV) was performed on the MISTRAL beamline to investigate, in whole unstained cells, the morphology of the membranous rearrangements induced in HCV replicon-harbouring cells in conditions close to the living physiological state. All morphological alterations could be reverted by a combination of sofosbuvir/daclatasvir, which are clinically approved antivirals (direct-acting antivirals; DAAs) for HCV infection. Correlatively combining cryo-SXT and 2D synchrotron-based infrared microscopy provides critical information on the chemical nature of specific infection-related structures, which allows specific patterns of the infection process or the DAA-mediated healing process to be distinguished.</jats:p>