MTOR and lung cancer: Other pathways that are also altered in other tumors include the Wingless/Integrated (Wnt) signaling pathway in colorectal cancer [22], the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) and the mitogen-activated protein kinase (MAPK) signaling pathway in lung cancer [22,23], and the Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway in cervical cancer [24].