Abstract.
A method to use sequential rounds of immunofluorescent labeling in cell cultures is presented. The method is based on the utilization of a non-liquid reducing agent, sodium dithionite, in conjunction with ionic or non-ionic detergents (SDS or TX100, respectively) at room temperature. This method preserves cell morphology and substrate antigenicity, and operates through the complete extraction of most primary and secondary antibodies. Using this protocol, the sequential immunolocalization of different proteins is possible, without signal interference with previous immunolabeling rounds. In addition, the method is also useful to recycle blotted membranes in immunoblots.
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Espada, J., Juarranz, A., Villanueva, A. et al. Recycling cultured cells for immunofluorescent labeling. Histochem Cell Biol 116, 41–47 (2001). https://doi.org/10.1007/s004180100290
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DOI: https://doi.org/10.1007/s004180100290