Among them, schizandrin A (targeted MEG3), folic acid (targeted MEG3 and TMEM198B), zinc (targeted MT1JP and MT1L) and gamma-linolenic acid (targeted MT1L) may be candidate drugs to prevent the development of lung cancer for CNT occupational workers because they were components of traditional Chinese medicine or OTC health products. Here, MEG3 is linked to lung carcinoma.