Barrier Destruction and Statistical Analysis After TEER Measurement in an In Vitro Blood-Brain Barrier Model

Begin by culturing the BEND3 cells, then divide the wells into the control group and cobalt chloride group. Add 200 microliters of culture medium into the upper chamber of the control group and culture medium containing 300 micromolar cobalt chloride into the cobalt chloride group. Incubate the plates at 37 degrees Celsius and detect the resistance values at 12 and 24 hours of incubation using TEER method.

Use commercial software to map the trend of TEER values of the cell barrier. Use statistical analysis software to analyze the difference in resistance values between cobalt chloride treated cells and control cells. Addition of 300 micromolar cobalt chloride resulted in a significant decrease in TEER values compared to the control at both the 12-hour and 24-hour time points.

After 24 hours, the TEER value of 300 micromolar cobalt chloride group reduced compared to the control group, indicating breakdown of the cell barrier that was induced by hypoxic conditions due to cobalt chloride.