CAV1 and lung adenocarcinoma: Moreover, when categorizing patients with stage I lung adenocarcinoma (n = 38), we observed that IB stage LUAD tissues (n = 15) exhibited the highest level of caveolin-1 expression as compared to IA2 (n = 9) and IA3 stage LUAD tissues (n = 14) (Fig. 3j-l).