Journal: Current protocols
Article Title: Establishment of a Four-Cell In Vitro Blood-Brain Barrier Model With Human Primary Brain Cells
doi: 10.1002/cpz1.1067
Figure Lengend Snippet: Expression of tight junctions (TJs), ZO-1, and claudin 5 on human brain cells, layered on polyester Transwell insert membrane. Staining was performed for ZO-1 (red), claudin 5 (green), and the nucleus (DAPI; blue). TJs were observed on astrocytes and pericytes growing in medium alone ( A ) or with added zinc sulfate ( B ) and on hBMECs in medium alone ( C ) or with zinc sulfate ( D ). Scale bar inside images represents 50 μm. TJ, tight junction; Z0–1, zona occludens; hBMEC, human brain microvascular endothelial cells; DAPI, 4′,6-diamidino-2-phenylindole.
Article Snippet: 70% (v/v) ethanol Endothelial CM (see recipe) Transwell inserts bearing BBB models (Basic Protocol ) Paraformaldehyde (Thermo Scientific, cat. no. J19943-K2) Dulbecco’s phosphate-buffered saline (DPBS; Gibco, cat. no. 14190144) Goat serum (Abcam, cat. no. ab7481) Tween-20 (Sigma, cat. no. P2287–100ML) Bovine serum albumin (BSA) Wash buffer (see recipe) Appropriately conjugated (labeled) antibodies for claudin 5 (Invitrogen, cat. no. 362588) and ZO-1 (Invitrogen, cat. no. MA3–39100 A647) Appropriately conjugated (labeled) antibodies for cell markers: anti-S1OOβ for astrocytes (Abcam, cat. no. ab196175), anti-CD146 (Abcam, cat. no. ab196448 for pericytes and hBMECs), and anti-NeuN antibody for neuron (Abcam, ab190565) DAPI-(4′,6-diamidino-2-phenylindole) mounting dye (ProLong Diamond Antifade Mounting medium with DAPI, Invitrogen cat. no. P3692) Dolutegravir (DTG; Adooq Bioscience) DTG solution without DTG (see recipe) EVOM2 for TEER measurement (World Precision Instruments [WPI]) Scalpel Scissors Beakers Glass slides Glass coverslips Forceps Measuring cylinders Magnetic stirrer Magnetic beads Vortex Confocal microscope (Zeiss LSM800 microscope) Fiji ImageJ software Liquid chromatography-tandem mass spectrometer (LC/MS/MS)
Techniques: Expressing, Membrane, Staining