Independent studies on ERCC1‐deficient non‐small cell lung cancer cells, pancreatic cells, and tissue‐resident microglia have demonstrated that ERCC1 loss leads to an accumulation of cytoplasmic DNA fragments (Chatzidoukaki et al. 2021; Chabanon et al. 2019; Arvanitaki et al. 2024). Here, ERCC1 is linked to lung cancer.