Enhanced expression of IL-8 and MCP1 is independent of the method of apoptosis induction. Apoptosis was induced in HMEC-1 cells either by UV irradiation or by treatment with a combination of TNF-α (3 nM) and CPT (0.15 μM) for 24 hours. Healthy HMEC-1 cells were exposed to the apoptotic cells for 3 hours and mRNA level of IL-8 and MCP1 were determined by real-time qPCR. Data are given as mean ± SD of 5 independent experiments.