Used in research and development for immunological studies, particularly in understanding Toll-like receptor 3 (TLR3) signaling pathways involved in innate immunity. Employed as a reference standard in assays to evaluate TLR3 activation or inhibition, supporting the development of therapeutics targeting viral recognition and inflammatory responses. Applied in flow cytometry, immunoprecipitation, and functional blocking experiments to modulate immune cell activity. Supports drug discovery efforts in autoimmune diseases, antiviral therapies, and vaccine adjuvant research by providing a consistent tool for TLR3 detection and neutralization.