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Immunolocalization of alpha-melanocyte stimulating hormone coupled to poly-L-glutamic and poly-L-lysine acid (PLL-PGA-α-MSH). Immunofluorescent analysis of human oral epithelial cells (A–C) and fibroblasts (D–F), using PLL-PGA-α-MSH conjugated to rhodamine Red after 24 h. Blue pseudocolor = DAPI (fluorescent DNA dye). All the images were imaged under the same magnification and the scale bar in all the images represents 30 μm.
