Whole-Mount Immunohistochemical and Immunofluorescence Assays in Zebrafish Embryos.

Zebrafish embryos are an important organism used as an in vivo model in a wide variety of disciplines from the past to the present. Immunohistochemistry analyses are an important method used to determine the localization of specific antigens in tissue sections with labeled antibodies depending on antigen-antibody interactions in zebrafish embryos. Immunofluorescence assays are an immunohistochemistry method that uses fluorophores to determine diverse cellular antigens. Zebrafish embryos and larvae, with their small size, are the most ideal model organisms for whole-mount immunohistochemical and immunofluorescent methods today. The small size of these organisms allows simultaneous evaluation of different tissues and organs, and results are obtained in a shorter time. In this section, whole-mount immunohistochemical and immunofluorescent analysis methods in zebrafish embryos, and larvae are summarized in detail, taking into account different studies and recent advances.