Moreover, BLM-induced lung fibrosis in WT mice was significantly reduced in myeloid cell TERT-deficient mice as manifested by several markers of fibrosis, including α-SMA (Acta2), type I collagen (col1a2), and TGFβ (Tgfb) (Figure 6E). Here, COL1A2 is linked to pulmonary fibrosis.