reported that susceptible genetic loci of immune-related genes, including surfactant protein C (SP-C), autoimmune regulator (AIRE), telomerase reverse transcriptase (TERT) and mucin 5B oligomeric mucus/gel-forming (MUC5B), are linked to the development of CIP in cancer patients (161) (Figure 2). The gene discussed is MUC5B; the disease is cancer.