Figure 7 shows that the activity of caspases 3 and 7 was increased twice in the tumor cells treated with the Granulocystopsis sp. extract, compared to untreated cancer cells. On the other hand, in Vero (normal) cells, the positive control treated with doxorubicin showed a higher activation than Vero cells treated with microalgae extract. No differences in caspase activity were observed between cancer cells treated with doxorubicin and those treated with the microalgae extract. Together, these experiments strongly support the conclusion that Granulocystopsis sp. This evidence concerns the gene CASP3 and cancer.