In Cell Interactome of Oleocanthal, an Extra Virgin Olive Oil Bioactive Component.

A copper-(I)-catalyzed variation of the Huisgen 1,3-dipolar cycloaddition has been applied to lead the in living-cell mass-spectrometry based identification of protein targets of oleocanthal, a natural metabolite daily ingested by millions of people. Chemical proteomics revealed heat-shock proteins, HSP70 and HSP90, as main oleocanthal interactors in living systems. These two proteins are involved in cancer development and, thus, our findings could have important outcomes for a deep evaluation of the bio-pharmacological significance of oleocanthal.