PINK1 and Parkinson disease: In cases of irreversibly damaged mitochondria, addition of PTEN induced putative kinase 1 (PINK1) antibodies, targeting PINK1 protein known to accumulate intracellularly in damaged mitochondria,135 on hyaluronic acid‐based nanoparticles carrying a siRNA able to activate mitophagy in PD models, could promote the clearance of damaged mitochondria.