Fig. 4From: Involvement of the CB2 cannabinoid receptor in cell growth inhibition and G0/G1 cell cycle arrest via the cannabinoid agonist WIN 55,212–2 in renal cell carcinomaImmunocytochemical (ICC) staining of cannabinoid receptors. ICC was used to stain the CB2 receptor; CB2 was detected in fixed RCC cell lines. The cells were stained with anti-CB2 antibody and Alexa Fluor® 546 secondary antibody (red) and were counterstained with the nuclear dye DAPI (blue)Back to article page