Bestatin-amido-Me is primarily utilized in biochemical research and pharmaceutical studies due to its role as a potent inhibitor of aminopeptidases. It is often employed in the investigation of enzyme mechanisms and the regulation of peptide metabolism. In cancer research, it is studied for its potential to modulate immune responses and inhibit tumor growth by affecting peptide processing. Additionally, it is used in the development of therapeutic agents targeting aminopeptidase-related diseases, such as certain cancers and immune disorders. Its application extends to the study of protein degradation pathways and the exploration of its anti-inflammatory properties.