In human patients with progressive pulmonary fibrosis, TGFB1-associated expression of fibroblastic PTK2 has been reported [20, 30] and experiments in a bleomycin-induced pulmonary fibrosis mouse model indicated that this kinase is related to fibroblastic proliferation, activation and collagen production [31]. The gene discussed is TGFB1; the disease is pulmonary fibrosis.