Fig. 2

Representative immunohistochemistry staining of CHCHD2 and HIF-1αin NSCLC and normal tissue samples. a-j were CHCHD2 staining in NSCLC and normal tissues. a-d were squamous cell carcinoma, f-i were adenocarcinoma, e, j were normal tissues, a, f were negative staining, b, g were weak positive staining, c, h were moderate positive staining, d, i were strong positive staining; e was negative staining in normal tissue, and j was positive staining in normal tissue. Figure k-t were HIF-1α staining in NSCLC and normal tissues. k-n were squamous cell carcinoma, p-s were adenocarcinoma, o, t were normal tissues, k, p were negative staining, l, q were weak positive staining, m, r were moderate positive staining, n, s were strong positive staining; o was negative staining in normal tissue, t was positive staining in normal tissue. (All images are magnified at × 100)