IHC staining assay (Figure 5I) showed weak positivity of PINK1 and PRKN expression, and IF analysis (Figure 5J) confirmed decreased colocalization of PINK1 and PRKN in the PTPN2 knockout group of the subcutaneous tumors from ALK+ ALCL mouse xenograft models. The gene discussed is PTPN2; the disease is anaplastic large cell lymphoma.