PMID- 27128638 OWN - NLM STAT- MEDLINE DCOM- 20170911 LR - 20180826 IS - 1440-1681 (Electronic) IS - 0305-1870 (Linking) VI - 43 IP - 8 DP - 2016 Aug TI - Characterisation of a mouse cerebral microvascular endothelial cell line (bEnd.3) after oxygen glucose deprivation and reoxygenation. PG - 777-86 LID - 10.1111/1440-1681.12587 [doi] AB - Studies have utilised immortalised mouse cerebral endothelial cells (bEnd.3) exposed to oxygen glucose deprivation (OGD) to study blood-brain barrier (BBB) disruption after ischaemia. However, there is a paucity of literature describing the duration of OGD (and reoxygenation [RO]) required to best simulate BBB disruption in vivo. In this study we assessed BBB disruption in bEnd.3 cells after exposure to a range of OGD periods, and also after OGD + RO. Exposure of bEnd.3 monolayers to 4, 6, 16, or 24 hours of OGD resulted in a significant increase in permeability. The hyperpermeability after 16 or 24 hours was associated with decreased expression of tight junction proteins (occludin and claudin-5). Furthermore, there was a decrease in cell viability and increased expression of the pro-apoptotic protein, cleaved caspase-3. Exposure of bEnd.3 monolayers to 1 hour OGD+ 23 hours RO exacerbated hyperpermeability relative to 1 hour OGD, which was associated with decreased expression levels of occludin and ZO-1, but no change in cell viability or caspase-3. 4 hours OGD + 23 hours RO exacerbated hyperpermeability, decreased expression levels of tight junction proteins, decreased cell viability, and increased caspase-3 expression. Thus, bEnd.3 cells exhibit hyperpermeability, a loss of tight junction proteins, and undergo cell death, after exposure to prolonged periods of OGD. Moreover, they exhibit exacerbated hyperpermeability, a loss of tight junction proteins, and increased expression of caspase-3 after OGD + RO. These findings will facilitate the use of this cell line in studies of BBB disruption and for the testing of therapeutics. CI - (c) 2016 John Wiley & Sons Australia, Ltd. FAU - Ku, Jacqueline M AU - Ku JM AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. FAU - Taher, Mohammadali AU - Taher M AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. FAU - Chin, Kai Yee AU - Chin KY AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. FAU - Grace, Megan AU - Grace M AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. FAU - McIntyre, Peter AU - McIntyre P AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. FAU - Miller, Alyson A AU - Miller AA AD - School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Australia TA - Clin Exp Pharmacol Physiol JT - Clinical and experimental pharmacology & physiology JID - 0425076 RN - IY9XDZ35W2 (Glucose) RN - S88TT14065 (Oxygen) SB - IM MH - Animals MH - Blood-Brain Barrier/metabolism MH - Capillary Permeability/*physiology MH - Cell Hypoxia/physiology MH - Cell Line, Transformed MH - Cell Survival/physiology MH - Cerebrovascular Circulation/*physiology MH - Endothelial Cells/*metabolism MH - Glucose/*deficiency MH - Mice MH - Microvessels/*metabolism MH - Oxygen/*metabolism OTO - NOTNLM OT - blood-brain barrier OT - cell death OT - cultured cells OT - ischaemia OT - permeability OT - tight junctions EDAT- 2016/04/30 06:00 MHDA- 2017/09/12 06:00 CRDT- 2016/04/30 06:00 PHST- 2015/12/05 00:00 [received] PHST- 2016/04/17 00:00 [revised] PHST- 2016/04/26 00:00 [accepted] PHST- 2016/04/30 06:00 [entrez] PHST- 2016/04/30 06:00 [pubmed] PHST- 2017/09/12 06:00 [medline] AID - 10.1111/1440-1681.12587 [doi] PST - ppublish SO - Clin Exp Pharmacol Physiol. 2016 Aug;43(8):777-86. doi: 10.1111/1440-1681.12587.