Summary
We show that fluorescence microscopy after staining of tissue sections with basic fuchsin (BF) can be used successfully for the demonstration of elastic fibres. Using double staining with BF and antibodies reacting with microfibrils of elastic fibres (anti-SAP) we showed that BF reacts with the elastin core of elastic fibres and the elastin poor terminal branches of the subepidermal elastic fibre system. Small amounts of bound BF were easily seen by fluorescence microscopy (FL) but not by ordinary light microscopy. Both frozen sections and sections of paraffin embedded tissues could be stained. The BF-FL staining procedure is simple to perform and, due to its selectivity, it may be useful for detecting elastic fibres in various tissues at the light microscopical level.
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Pihlman, K., Linder, E. Fluorescence microscopical visualization of elastic fibres using basic fuchsin. Histochemistry 79, 157–165 (1983). https://doi.org/10.1007/BF00489778
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DOI: https://doi.org/10.1007/BF00489778