Other differentially expressed genes are known to be involved in respiratory diseases, such as lung cancer, including FAM50B [24], ATPase phospholipid transporting 11C [29], WWC family member 3 [30–32], PTPN13 [27], RAS protein activator-like 2 [33], tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta [34,35], and LRP12 [28]. Here, RASAL2 is linked to lung cancer.