Similar to NSCLC, overexpression of MEX3A, MEX3B and MEX3D were associated with decreased OS for MEX3A (HR = 1.74; CI 1.36–2.22; P = 9.9E−06), MEX3B (HR = 1.32; CI 1.04–1.68; P = 0.023) and MEX3D (HR = 2.13; CI 1.67–2.72; P = 4.5E−10), but not in MEX3C (HR = 0.50; CI 0.39–0.63; P = 5.6E−09). Here, MEX3B is linked to non-small cell lung carcinoma.