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Efficient clathrin-mediated entry of enteric adenoviruses in human duodenal cells
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- Becker, Miriam (author)
- Umeå universitet,Institutionen för klinisk mikrobiologi,Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM),Molekylär Infektionsmedicin, Sverige (MIMS),Department of Biochemistry, Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Hannover, Germany
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- Conca, Dario Valter (author)
- Umeå universitet,Institutionen för klinisk mikrobiologi,Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM)
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- Dorma, Noemi (author)
- Umeå universitet,Institutionen för klinisk mikrobiologi,Wallenberg centrum för molekylär medicin vid Umeå universitet (WCMM)
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- 2023
- 2023
- English.
- In: Journal of Virology. - 0022-538X .- 1098-5514. ; 97:10
- Journal article (peer-reviewed)
Abstract
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- Enteric adenovirus types F40 and 41 (EAdVs) are a leading cause of diarrhea and diarrhea-associated death in young children and have recently been proposed to cause acute hepatitis in children. EAdVs have a unique capsid architecture and exhibit — unlike other human adenoviruses — a relatively strict tropism for gastrointestinal tissues with, to date, understudied infection mechanism and unknown target cells. In this study, we turn to potentially limiting host factors by comparing EAdV entry in cell lines with respiratory and intestinal origin by cellular perturbation, virus particle tracking, and transmission electron microscopy. Our analyses highlight kinetic advantages for EAdVs in duodenal HuTu80 cell infection and reveal a larger fraction of mobile particles, faster virus uptake, and infectious particle entry in intestinal cells. Moreover, EAdVs display a dependence on clathrin- and dynamin-dependent pathways in intestinal cells. Detailed knowledge of virus entry routes and host factor requirements is essential to understanding pathogenesis and developing new countermeasures. Hence, this study provides novel insights into the entry mechanisms of a medically important virus with emerging tropism in a cell line originating from a relevant tissue. IMPORTANCE Enteric adenoviruses have historically been difficult to grow in cell culture, which has resulted in lack of knowledge of host factors and pathways required for infection of these medically relevant viruses. Previous studies in non-intestinal cell lines showed slow infection kinetics and generated comparatively low virus yields compared to other adenovirus types. We suggest duodenum-derived HuTu80 cells as a superior cell line for studies to complement efforts using complex intestinal tissue models. We show that viral host cell factors required for virus entry differ between cell lines from distinct origins and demonstrate the importance of clathrin-mediated endocytosis.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
Keyword
- clathrin-mediated endocytosis
- electron microscopy
- enteric adenovirus
- single particle tracking
- virus entry
Publication and Content Type
- ref (subject category)
- art (subject category)
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