WZ811 is primarily utilized in research settings as a selective inhibitor of CXCR4, a chemokine receptor involved in various physiological and pathological processes. Its application is significant in studying cancer biology, as CXCR4 plays a crucial role in tumor growth, metastasis, and angiogenesis. By inhibiting CXCR4, WZ811 helps researchers understand the mechanisms of cancer cell migration and invasion, potentially leading to the development of targeted therapies. Additionally, it is used in immunology research to explore the role of CXCR4 in immune cell trafficking and inflammatory responses. WZ811 also aids in investigating HIV infection, as CXCR4 serves as a co-receptor for viral entry into host cells, making it a valuable tool for antiviral research.