Human renal arteries were fixed in 10% formalin for 48 h, paraffin-embedded and sectioned. Slides were then deparaffinized, rehydrated and permeabilized with PBS containing 0.05% Triton X-10022 (link). After blocking, slides were labelled with rabbit anti-DHHC21 and goat anti-α1AR antibodies (1:100) overnight at 4 °C. After washing, secondary antibody incubation was done with donkey anti-rabbit Alexa Fluor 488 and donkey anti-goat Alexa Fluor 568 (1:500). After mounting with ProLong Diamond mounting medium with DAPI, slides were imaged with Leica SP8 spectral inverted laser scanning confocal microscope.
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