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- W2744967199 abstract "Aflatoxin B1 (AFB1) is a well-known member of aflatoxins (AFs) that is considered among highly stable toxic contaminants of food, worldwide. The impact of AFB1 on neural cells and systems has poorly been understood. To assess the cellular effects of AFB1 on brain, we used murine pure primary astrocytes, sub ventricular zone-derived neural precursor cells (NPCs) and microglia cell line (BV2). Cells were exposed separately to environmentally relevant level (20ng/ml) of AFB1 for 1, 2, 3, 6, 12, 24 and 48h in culture. At each time points, total free radicals production measured by luminol-enhanced cellular chemiluminescence (CL) assay; cytokines production of IL-1β, IL-6, TNF-α and IL-10 were analyzed using Bioplex ELISA and a set of genes involved in the immediate response to danger such as TLR2, TLR4 and iNOS etc. were evaluated by multiplex qPCR. Upon AFB1 exposure production, of the total free radicals significantly increased only in microglial cells after 24h and slightly elevated in the other examined cells. AFB1 also induced secretion of pro-inflammatory cytokines (i.e. TNF-α and IL-6) on both microglial cells (more TNF-α) and astrocytes (more IL-6). mRNA expression of TLR2, TLR4, MyD88 and NF-κB were up-regulated with different timing and levels among cells. Immunotoxicologically, microglial cells, and astrocytes, but not NPCs, are capable of sensing a low level of AFB1. Thus, the pro-inflammatory effects of an environmentally relevant dose of AFB1 on CNS-derived cells in vitro could potentially explain the immune dysregulation in neurodegenerative disorders." @default.
- W2744967199 created "2017-08-17" @default.
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- W2744967199 date "2017-09-01" @default.
- W2744967199 modified "2023-10-16" @default.
- W2744967199 title "Environmentally relevant level of aflatoxin B 1 elicits toxic pro-inflammatory response in murine CNS-derived cells" @default.
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- W2744967199 doi "https://doi.org/10.1016/j.toxlet.2017.07.902" @default.
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