Effects of Cell Culture and Laboratory Conditions on Type 2 Dengue Virus Infectivity
Overview
Authors
Affiliations
The stability of type 2 dengue virus to exposure to a variety of laboratory conditions was determined. Suckling mouse brain passage virus was adapted for growth in BHK-21 cells, and plaque assays were performed using a tragacanth gum overlay. A three- to fourfold increase in plaque size could be obtained if monolayers were subconfluent at time of inoculation. Incubation of virus for 24 h at 37 degrees C, pH 6.5, or in buffer containing 1 mM ethylenediaminetetraacetate considerably reduced virus infectivity as compared with virus incubated for the same period at 4 degrees C, pH 8.0, or in buffer with or without 1 mM CaCl2 and 1 mM MgCl2. Multiple freezing and thawing of virus tissue culture medium containing 10% fetal calf serum did not reduce virus infectivity.
Nguyen H, Chaudhury S, Waickman A, Friberg H, Currier J, Wallqvist A Front Immunol. 2021; 12:696755.
PMID: 34484195 PMC: 8416063. DOI: 10.3389/fimmu.2021.696755.
Modelling Degradation and Replication Kinetics of the Zika Virus In Vitro Infection.
Bernhauerova V, Rezelj V, Vignuzzi M Viruses. 2020; 12(5).
PMID: 32429277 PMC: 7290367. DOI: 10.3390/v12050547.
Abd Razak M, Mohmad Misnan N, Md Jelas N, Norahmad N, Muhammad A, Ho T BMC Complement Altern Med. 2018; 18(1):320.
PMID: 30518360 PMC: 6282281. DOI: 10.1186/s12906-018-2390-7.
Zika Virus Is Not Uniquely Stable at Physiological Temperatures Compared to Other Flaviviruses.
Goo L, Dowd K, Smith A, Pelc R, DeMaso C, Pierson T mBio. 2016; 7(5).
PMID: 27601578 PMC: 5013301. DOI: 10.1128/mBio.01396-16.
Jensen S, Nguyen C, Jewett J J Virol Methods. 2016; 235:125-130.
PMID: 27265428 PMC: 4992633. DOI: 10.1016/j.jviromet.2016.05.017.