There are different views of how the immune system participates in the reaction to cancer. Here, we evaluated expression of DAMP proteins HSP70 and cancer-testis antigen SPAG9 in patients with hepatocellular carcinoma（HCC） and lung cancer to explore tumor immunity. Our analysis showed that levels of HSP70 and SPAG9 antibody were significantly higher in serum of lung cancer and HCC patients than in serum from healthy subjects（P < 0.001）, but there were no differences in levels of HSP70 antibody in patients and controls. Levels of serum SPAG9...
