(±)-JQ1 is primarily utilized in research settings for its role as a potent inhibitor of the BET family of bromodomain proteins. These proteins are involved in the regulation of gene expression, and by inhibiting them, (±)-JQ1 can modulate various cellular processes. One of its key applications is in the study of cancer, where it has been shown to suppress the growth of certain cancer cells by disrupting the expression of oncogenes. Additionally, it is used in immunological research to investigate its effects on inflammation and immune response. The compound is also valuable in studying epigenetic mechanisms and their impact on cellular behavior, making it a significant tool in both basic and applied biomedical research.