Linking dengue virus entry and translation/replication through amphisomes

Autophagy. 2009 Apr;5(3):434-5. doi: 10.4161/auto.5.3.7925. Epub 2009 Apr 23.

Abstract

Amphisomes are preautolysosomal vacuoles formed upon the fusion of autophagosomes with endosomes, and as such represent a critical meeting point between endocytic and autophagic pathways. Dengue virus enters into susceptible cells by clathrin-mediated endocytosis, and colocalization of dengue markers with markers of both autophagic and endosomal vesicles demonstrates that amphisomes are a site of dengue virus replication and translation. This work links for the first time the processes of dengue virus entry and translation/replication, and allows for interpretation of the early part of the dengue virus life cycle in terms of a continual association with membranes of an endosomal-autophagosomal lineage.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aedes / virology
  • Animals
  • Autophagy
  • Cell Lineage
  • Cell Membrane / metabolism
  • Clathrin / metabolism
  • Dengue Virus / metabolism*
  • Endocytosis
  • Endosomes / metabolism
  • Humans
  • Lysosomes / metabolism
  • Phagosomes / metabolism
  • Protein Biosynthesis*
  • RNA Viruses / metabolism
  • Virus Replication*

Substances

  • Clathrin