IQGAP1 and pulmonary fibrosis: Kulkarni et al. reported that expression of IQGAP1 is increased in lung tissue from mice with bleomycin-induced pulmonary fibrosis [28], while Zong et al. showed that expression of IQGAP1 is reduced in lung fibroblasts obtained from mice with bleomycin-induced pulmonary fibrosis [29].