KIF20A and small cell lung carcinoma: Overexpression of KIF20A RNA has been reported in several studies that analyzed NSCLC and SCLC tumours and is associated with poor patient prognosis; KIF20A was also identified as a component of prognostic gene expression signatures associated with drug resistance and microtubules [28,41,46,47,82,83,84,85,86,87,88,89].