Used in biomedical research to detect and quantify Wnt-9a protein levels in cell lysates, tissue extracts, and biological fluids. Enables study of Wnt signaling pathways involved in embryonic development, tissue regeneration, and cancer progression. Commonly applied in academic and pharmaceutical research to assess pathway activation, screen drug candidates, and investigate diseases linked to Wnt pathway dysregulation. Provides high sensitivity and specificity for accurate measurement in small sample volumes.