Journal: Journal of Applied Toxicology
Article Title: Impacts of Inorganic Arsenic Exposure on Genetic Stability of Human Mesenchymal Stromal Cells
doi: 10.1002/jat.4785
Figure Lengend Snippet: Schematic representation of experimental designs. All experimental designs commenced with PDL 13 seeded at a density of 3000 cells/cm 2 on Day minus 3 (not shown). (A) Three‐day experiments assessed, in 96‐well plates, the ability of mitomycin C (MMC), sodium arsenite (iAs), or diethanolamine (DEA) to induce micronuclei (MN), which included a 24‐h seeding recovery phase, followed by a 48‐h exposure to media containing test chemicals. (B) Ten‐day experiments investigated the effects of cellular aging and of iAs exposure. Following a 24‐h recovery after seeding, the cells were cultured in T75 flasks for 6 days with increasing concentrations of iAs or vehicle control. The cells were then subjected to the same 3‐day protocol without or with MMC. (C) Short‐duration gene expression experiments followed the same protocol as the standard micronucleus experiment, with RNA extraction occurring at the time that MN would be measured. (D) The longer duration gene expression experiments were conducted over 30 days and involved multiple rounds of cell exposures to iAs or vehicle control.
Article Snippet: The concentration of live cells was then determined with an automated cell counter and then seeded at a density of 3333 viable cells/cm 2 in CellBIND T75 flasks (Corning) with 10‐mL XR media.
Techniques: Cell Culture, Control, Gene Expression, RNA Extraction