For immunofluorescence analysis, the cut sections were stained with 200 times dilution of ZO-1 (AB96587; Abcam, Cambs, UK), 100 times dilution of Claudin3 (AB15102; Abcam, Cambs, UK), and 100 times dilution of Occludin (AB216327; Abcam, Cambs, UK). All the antibodies were anti-rabbit. Slides were examined and analyzed using an epifluorescence microscope.
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