TY - JOUR TI - POLY I:C-INDUCED TLR3 ACTIVATION ON OXIDATIVE STRESS LEVELS IN PC-3 (HORMONE-INSENSITIVE) AND LNCAP (HORMONE-SENSITIVE) AS PROSTATE CANCER CELLS AB - Objective: We aimed to determine the role of Poly I:C-induced TLR3 activation on oxidative stress in two different prostate cancer cells [PC-3 (hormone insensitive) and LNCaP (hormone-sensitive)] for the first time. For this purpose, lipid peroxidation (MDA), hydrogen peroxide (H 2O2) and proline amounts and superoxide dismutase (SOD) enzyme activity were examined. Methods: The optimal concentration and time required for receptor stimulation with Poly I:C cells were determined by WST-1 analysis. Spectrophotometric methods determined biochemical parameters. Results: The less cytotoxic concentration of 5 μM of Poly I:C on PC-3 and LNCaP cells was determined. A significant increase was observed in LNCaP cells in SOD activities after 6 and 24 hours. A significant increase in PC-3 and LNCaP cells' MDA levels was determined over 6 hours, while a significant decrease was observed in Poly I:C LNCaP after 24 hours. A significant increase in H 2O2 concentration was detected in LNCaP cells, but a significant decrease was observed in PC-3 after 6 and 24 hours. The proline level showed a significant increase in LNCaP over 24 hours but not in the proline level in PC-3 cells after 6 and 24 hours. Conclusion: The MDA, H 2O2 and SOD activity levels were found to be significantly higher in hormone-sensitive LNCaP cells, while no significant changes were found in PC-3 cells treated with Poly I:C. Results were significantly different at the level of p<0.05 and p<0.001. AU - Deveci Özkan, Asuman AU - Yuksel, Burcu DO - 10.30934/kusbed.915511 PY - 2022 JO - Kocaeli Üniversitesi Sağlık Bilimleri Dergisi VL - 8 IS - 1 SN - 2149-8571 SP - 18 EP - 24 DB - TRDizin UR - http://search/yayin/detay/511141 ER -