hCMEC/D3 cells were grown on 6-well plates coated with calf-skin collagen (Sigma–Aldrich, Gillingham, UK) and collected in TRIzol (Thermo-Fisher Scientific, UK) as described previously [2 (link)]. Total RNA was extracted using a TRIzol Plus RNA purification kit (Thermo-Fisher Scientific, UK) and quantified using a CLARIOstar spectrophotometer equipped with an LVis microplate (BMG Labtech GmbH, Germany).
Hybridization experiments were performed by Macrogen Inc. (Seoul, Republic of Korea) using Illumina HumanHT-12 v4.0 Expression BeadChips (Illumina Inc., San Diego, CA) as described previously [2 (link)].
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