Publications by authors named "Lucile G Guion"

Promyelocytic leukemia (PML) nuclear bodies (NBs) are highly dynamic subnuclear structures. Their name giving major component, PML protein, is essential for their formation. PML is present in many different isoforms due to differential splicing, which seem to contribute differently to PML NBs function.

View Article and Find Full Text PDF

The non-enveloped human papillomaviruses (HPVs) specifically target epithelial cells of the skin and mucosa. Successful infection requires a lesion in the stratified tissue for access to the basal cells. Herein, we discuss our recent progress in understanding binding, internalization, uncoating, and intracellular trafficking of HPV particles.

View Article and Find Full Text PDF
Article Synopsis
  • HPV enters cells and is trafficked to the trans-Golgi network (TGN), where its minor capsid protein L2 changes form and plays a role in the entry process during cell division (mitosis).
  • The viral genome separates from the TGN and associates with microtubules as mitosis starts, ultimately ending up on mitotic chromosomes through L2's mediation.
  • The incoming viral genome is held in a membrane-bound vesicle until the nuclear envelope reforms after mitosis, delaying its expression, indicating a specialized method HPV uses to penetrate the nucleus of dividing cells and potentially revealing a new cellular pathway worth exploring in future research.
View Article and Find Full Text PDF

Unlabelled: The human papillomavirus (HPV) capsid is composed of the major capsid protein L1 and the minor capsid protein L2. During entry, the HPV capsid undergoes numerous conformational changes that result in endosomal uptake and subsequent trafficking of the L2 protein in complex with the viral DNA to the trans-Golgi network. To facilitate this transport, the L2 protein harbors a number of putative motifs that, if capable of direct interaction, would interact with cytosolic host cell factors.

View Article and Find Full Text PDF