2. Academic Validation
  3. Resveratrol Derivative, Trans-3, 5, 4'-Trimethoxystilbene Sensitizes Osteosarcoma Cells to Apoptosis via ROS-Induced Caspases Activation

Resveratrol Derivative, Trans-3, 5, 4'-Trimethoxystilbene Sensitizes Osteosarcoma Cells to Apoptosis via ROS-Induced Caspases Activation

  • Oxid Med Cell Longev. 2021 Mar 25:2021:8840692. doi: 10.1155/2021/8840692.
Yu Feng 1 2,  Jacob Clayton 3,  Wildman Yake 3,  Jinke Li 3,  Weijia Wang 4,  Lauren Winne 3,  Ming Hong 5 6
Affiliations

Affiliations

  • 1 Department of Traumatology, General Hospital of Ningxia Medical University, 804 Shengli South Road, Yinchuan, Ningxia Hui Autonomous Region 750004, China.
  • 2 Department of Orthopaedics and Traumatology, The University of Hong Kong, 21 Sassoon Road, Hong Kong SAR 999077, China.
  • 3 Department of Pharmacology & Toxicology, University of Kansas, 126 Strong Hall, Lawrence, KS 66045, USA.
  • 4 Zhongshan People's Hospital, 2 Sun Wen East Road, Zhongshan, Guangdong 528400, China.
  • 5 Institute of Advanced Diagnostic and Clinical Medicine, Zhongshan People's Hospital, Guangzhou University & Zhongshan People's Hospital Joint Biomedical Institute, 2 Sun Wen East Road, Zhongshan, Guangdong 528400, China.
  • 6 Dongguan & Guangzhou University of Chinese Medicine Cooperative Academy of Mathematical Engineering for Chinese Medicine, Building 16, Songke Garden, Songshan Lake Science and Technology Industrial Park, Dongguan 523000, China.
PMID: 33833855 DOI: 10.1155/2021/8840692
Abstract

Numerous studies have shown that resveratrol can induce Apoptosis in Cancer cells. Trans-3, 5, 4'-trimethoxystilbene (TMS), a novel derivative of resveratrol, is a more potent Anticancer compound than resveratrol and can induce Apoptosis in Cancer cells. Herein, we examined the mechanisms involved in TMS-mediated sensitization of human osteosarcoma (143B) cells to TNF-related apoptosis-inducing ligand- (TRAIL-) induced Apoptosis. Our results showed that cotreatment with TSM and TRAIL activated caspases and increased PARP-1 cleavage in 143B cells. Decreasing cellular ROS levels using NAC reversed TSM- and TRAIL-induced Apoptosis in 143B cells. NAC abolished the upregulated expression of PUMA and p53 induced by treatment with TRAIL and TSM. Silencing the expression of p53 or PUMA using RNA interference attenuated TSM-mediated sensitization of 143B cells to TRAIL-induced Apoptosis. Knockdown of Bax also reversed TSM-induced sensitization of 143B cell to TRAIL-mediated apoptotic cell death. These results indicate that cotreatment with TRAIL and TSM evaluated intracellular ROS level, promoted DNA damage, and activated the Bax/PUMA/p53 pathway, leading to activation of both mitochondrial and caspase-mediated Apoptosis in 143B cells. Orthotopic implantation of 143B cells in mice also demonstrated that cotreatment with TRAIL and TSM reversed resistance to Apoptosis in cells without obvious adverse effects in normal cells.

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