Figure 4

The release of Hsp70 from A431 cells makes the latter sensitive to apoptosis-inducing action of hydrogen peroxide. A – data of immunoblotting with 2H9 antibody of control cells and cells treated with hydrogen peroxide and with U73122. B – DAPI staining of A431 cells treated with U73122 alone or in combination with hydrogen peroxide. C – the number of apoptotic cells in population of control cells and cells treated with U73122 alone and with combination of U73122 and hydrogen peroxide.