Anti-tumor effect of heat shock protein 70-Peptide complexes on A-549 cells

Effect of recombinant heat shock protein 70 of mycobacterial origin on cytotoxic activity and immunophenotype of human peripheral blood mononuclear leukocytes

Recombinant heat shock protein of mycobacterial origin with a molecular weight 70 kDa in concentration 0.1 microg/ml in vitro activates cytotoxic activity of mononuclear lymphocytes from peripheral blood of healthy donors against K-562 human erythroblastic leukemia cells sensitive to natural killers. In other concentrations (1.0 microg/ml and 10 microg/ml) this heat shock protein did not significantly affect functional activity of mononuclear leukocytes. Expression of CD4, CD25, CD16 and CD56 on membrane of mononuclear leukocytes was also studied.