STING1 and idiopathic pulmonary fibrosis: cGAS/STING signaling is also activated by dysfunctional telomeres (Abdisalaam et al, 2020) that might link telomere dysfunction as found in sporadic and hereditary IPF to development of pulmonary fibrosis (Cronkhite et al, 2008; Armanios & Blackburn, 2012).