IQGAP3 and small cell lung carcinoma: On the other hand, in the analysis of the expression levels of IQGAP3 in Garber dataset [26], the subtypes of lung cancer revealed significantly increased mRNA levels of IQGAP3 in lung adenocarcinoma (fold change = 3.2), in SCLC (fold change = 2.91), in LCLC (fold change = 3.81) and, in LUSC (fold change = 2.67) (Fig 2C).