MAPK8 and glioblastoma: EGCG can induce apoptosis and reduce cancer cell proliferation by decreasing the mitochondrial membrane potential (ΔΨm) and stimulating caspase-3, -9 and c-Jun N-terminal kinase 1 (JNK1) expression in human glioblastoma T98G and U87MG cells but does not induce apoptosis in human normal astrocytes (111).