In a previous study, Pinto et al. showed in a human total mRNA master panel (BD Biosciences Clontech) that TAC1 and TAC3 mRNAs were undetectable in the lung, but they observed a low expression of these transcripts in samples of human bronchi obtained from patients who had undergone lobectomy or pneumectomy for lung carcinoma, a high expression being observed in pulmonary arteries [48]. This evidence concerns the gene TAC3 and lung carcinoma.