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Morphological changes in vero cells postinfection with dengue virus type-2.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zargar, Seema Wani, Tanveer A. Jain, S. K.
Description	Country affiliation: Saudi Arabia Author Affiliation: Zargar S ( Department of Genetics, King Faisal Hospital and Research Centre, Riyadh 11211, Saudi Arabia. seemazargar@yahoo.com.)
Abstract	Although no specific antiviral tablets or injections that can kill the dengue virus are currently available, adequate care and treatment could control its morbidity. Interaction of dengue virus to target cells could be an important feature for virus propagation. Ultrastructural analysis of this interaction was studied with vero cells. Vero cells were treated with Dengue virus type-2 at different time intervals at multiplicity of infection (m.o.i) < 10, m.o.i > 10, and m.o.i = 100. It was found that m.o.i < 10 is best to study morphological changes. At an m.o.i > 10 apoptosis occurs and at m.o.i. = 100, cell necrosis occurs. While studying morphological changes, it was found that at 30 min postinfection cells have morphology very similar to that of the control cells although some have irregular outline and show cytoplasmic projections and intense cytoplasmic vacuolization. After 1-12 hours postinfection (h.p.i), the nuclei ran from normal looking to diffuse. Nuclear membrane begins to disintegrate. Some nucleoli are difficult to be seen. The cytoplasm appears as a mottled, lumps diffuse mass distributed throughout the cytosol, with dense lysosomes and myelin figures, also in the mitochondria. In later hours (24 h.p.i), the intranuclear euchromatin is dispersed and heterochromatin forms peripheral clumps. The cytoplasmic processes are short and few in numbers. A proportion of damaged mitochondria with disrupted cristae appear, suggesting that dengue virus may induce mitochondrial dysfunction and nucleus and mitochondria may be the primary organelles helping in dissemination of virus.
File Format	HTM / HTML
ISSN	1059910X
Issue Number	4
Volume Number	74
e-ISSN	10970029
Journal	Microscopy Research and Technique
Language	English
Publisher	Wiley-Liss
Publisher Date	2011-04-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Chemistry Techniques Dengue Virus Growth & Development Epithelial Cells Ultrastructure Virology Animals Cercopithecus Aethiops Organelles Time Factors Vero Cells Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Anatomy Histology Instrumentation Medical Laboratory Technology

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