KIF6 and scoliosis: Among the genes that have been confirmed to be involved in the development of scoliosis in humans (TBX6, FGF3, LBX1, POC5, TTLL1) [23,24,32,33,34,35] and vertebrates (Kif6 and Ptk) [36,37], several are ciliary genes [23,32,33,34,35,36,37].