HDAC6 and polycystic kidney disease: In addition to transactive response DNA binding protein of 43 kDa (TDP‐43), ASK1, Aurora, and CYLD proteins affecting HDAC6‐induced disease development described above, protein phosphatase 1 (PP1) regulates the cilium through interaction with A‐kinase anchoring protein 220 (AKAP220) and HDAC6 development and stability, which in turn affects the pathological process of polycystic kidneys.