Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (7): 2034-2043.doi: 10.11843/j.issn.0366-6964.2021.07.025

• CLINICAL VETERINARY MEDICINE • Previous Articles     Next Articles

Effect of Fas/FasL Pathway on MAPK Pathway Activated by Cadmium in PC12 Cells

WANG Li1,2, CHEN Jie1,3, WEN Shuangquan1,2, ZOU Hui1,2, GU Jianhong1,2, LIU Xuezhong1,2, BIAN Jianchun1,2, LIU Zongping1,2, YUAN Yan1,2*   

  1. 1. College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China;
    2. Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, China;
    3. Nantong Animal Disease Prevention and Control Center, Nantong 226011, China
  • Received:2020-11-17 Online:2021-07-23 Published:2021-07-23

Abstract: To study the effect of Fas/FasL pathway on cadmium-activated MAPK pathway in PC12 cells, PC12 cells with non-specific sequences inserted and Fas gene silenced were treated with 10 μmol·L-1 CdAc2 respectively for 12 h, PC12 cells were treated with 10 μmol·L-1CdAc2 and 40 μmol·L-1 Z-IETD-FMK (caspase-8 specific inhibitor) alone or in combination for 12 h. The expression of Fas/FasL pathway-related proteins Fas, FasL, Fas-associated death domain protein (FADD), Cleaved caspase-8, Death domain associated protein (Daxx), Apptosis signal-regulating kinase 1 (ASK1) and MAPK pathway-related proteins ERK1/2, JNK1/2, p-ERK1/2, p-JNK1/2 were detected by Western blot. The morphological changes of apoptosis were detected by Hoechst33258 fluorescence staining, and the apoptosis rate was detected by flow cytometry. The results showed that Fas shRNA lentivirus significantly inhibited the increase of Fas/FasL pathway related-proteins expression and apoptosis rate in PC12 cells induced by cadmium (P<0.01), and alleviated the morphological changes of cell apoptosis caused by cadmium in PC12 cells. In addition, Fas shRNA and Z-IETD-FMK could significantly inhibit the increase of cadmium-induced phosphorylation levels of MAPK pathway-related proteins ERK1/2 and JNK1/2 in PC12 cells (P<0.01). Our results indicate that the regulation of Fas/FasL pathway on the MAPK pathway is involved in cadmium-induced apoptosis in PC12 cells.

Key words: cadmium, PC12 cell, apoptosis, Fas/FasL pathway, MAPK pathway

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