Further studies showed that the levels of γ‐GT, SF, and the positive of anti‐RO‐52kD in patients with RP‐ILD in anti‐MDA5 Ab‐positive group were higher than those without RP‐ILD, whereas the lymphocyte count in patients with RP‐ILD was lower than those without RP‐ILD. The gene discussed is IFIH1; the disease is interstitial lung disease.