The effects of crocetin on oxidative stress induced ARPE-19 cells by H2O2*

Demirci Kucuk K., Tokuc E., Aciksari A., Duruksu G., Yazir Y., Karabas V. L.

EXPERIMENTAL EYE RESEARCH, cilt.226, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 226
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.exer.2022.109305
  • Dergi Adı: EXPERIMENTAL EYE RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, Chemical Abstracts Core, EMBASE, MEDLINE
  • Anahtar Kelimeler: Crocetin, ARPE-19, Retina pigment epithelium, Oxidative damage, Apoptosis, Age related macular degeneration, PIGMENT EPITHELIAL-CELLS, MACULAR DEGENERATION, VITAMIN-C, IN-VITRO, DAMAGE, SAFFRON, PROTECTS, DISEASE, NRF2, SUPPLEMENTATION
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The anti-apoptotic and antioxidant effects of crocetin was aimed to investigate on the oxidative damage model of ARPE-19 cells. The oxidative damage in ARPE cells was developed by H2O2 treatment at 800 mu M. Different doses of crocetin (1-80 mu M) were applied for 24 h, and the effects on viability were evaluated to find out the optimum drug dose. At first, three effective doses of crocetin (10, 20, 40 mu M) on cell viability were selected for further analyses. The levels of superoxide dismutase (SOD), malondialdehyde (MDA) and glutathione (GSH) were determined, and the expression of pro-apoptotic Bax gene and anti-apoptotic Bcl-2 gene were evaluated. The most effective crocetin dose on cell viability was found to be 10 mu M. After the H2O2 treatment, SOD and GSH were decreased and MDA were increased significantly (p = 0.011, 0.037, 0.018, respectively). Following the crocetin treatment at 10 mu M, SOD and GSH activities were improved compared to the no drug group; and MDA level was declined remarkably (p = 0.022, 0.019, 0.029, respectively). The Bcl-2 level was significantly decreased (p < 0.01), while the Bax1 and Nrf2 expression and ROS level was increased significantly in the damage model group (p < 0.01). After the drug treatment, the Bax1 and Nrf2 expression level were decreased in all groups (p < 0.01). The increase in Bcl-2 expression was significant in crocetin 40 mu M (p < 0.05) and the decrease in ROS level were significant in 20 mu M and 40 mu M doses of crocetin (p < 0.05). It has been shown that crocetin might be used as an antioxidant and anti-apoptotic agent on the hindering the effect of the oxidative damage. Following the development of the oxidative stress in the cells, crocetin reversed the damage signals. By the in vitro tests, it was shown that crocetin might be considered as an effective molecule to be used in the AMD treatment.