EdU and Immunofluorescence Staining of Nothobranchius furzeri Organotypic Cultures.

Immunofluorescence is a widely used technique to visualize the localization of proteins of interest. Nucleoside analogs, such as 5-ethynyl-2'-deoxyuridine (EdU), are incorporated into newly synthesized DNA and enable permanent labeling of newly divided cells. Both these techniques can be applied to long-term organotypic culture of Nothobranchius furzeri in a fashion similar to that already described for tissue sections. We report here our optimized method for immunofluorescence and EdU staining of N. furzeri organotypic slices.