HSP90AB1 and lung cancer: As shown in Table 5, when compared lung cancer patients with control individuals using serum Hsp90-beta, the threshold was 1.228 ng/mL and the sensitivity and specificity were 84.11 and 86% respectively; when using MPE Hsp90-beta, the cut-off value of 1.659 ng/mL appealed a sensitivity of 93.46% and a specificity of 79%.