What are the pitfalls of indirect immunofluorescence studies with polyclonal primary antibody aimed for determination of subcellular localization of a particular protein?
Disadvantages of indirect immunofluorescence include the potential for cross-reactivity and the need to find primary antibodies that are not raised in the same species or of different isotypes when performing multiple-labeling experiments. Also, Samples with endogenous immunoglobulin may exhibit a high background.