The Resveratrol Oligomers Cis- and Trans-gnetin H Inhibit Human Cancer Cells by Induction of Apoptosis and Oxidative Stress

Background: The oligostilbenes cis - and trans -gnetin H were previously studied for their ability to inhibit cancer cell proliferation and induce apoptosis. However, an in-depth understanding of the proteins involved in this process remains poorly understood. Methods: The ability of cis - and trans -gnetin H to act as an antioxidant by scavenging one of the stable free radicals DPPH was tested. We also tested the ability of both compounds to generate oxidative stress through elevating the reactive oxygen species (ROS) resulting in apoptosis using lung cancer cell line A549. Also, immunoassay Enzyme-linked Immunosorbent Assay (ELISA) was performed to test the levels of the major apoptotic proteins using a negative estrogen receptor (ER-) breast cancer cell line MDA-MB-231. Results: Cis - and trans -gnetin H treatment showed a high percentage of the radical scavenging activity =%24 at the lowest concentration 12.5μM (p≤0.0001) and elevated the levels of ROS in A549 to 50%, 45%, respectively (p≤0.001). In addition, cis - and trans -gnetin H induced early apoptosis in A549 cell line to 59% and 38.9%, respectively, at the highest concentration of 25μM compared to the untreated control (p≤0.0001). Results from apoptosis protein array showed certain up-regulated proteins such as Bid, Bad, cytochrome c, FasL, TRAIL1-4 and down regulated proteins such as XIAP, surviving, Hsp60, suggesting inducing apoptosis was facilitated by cross talk between intrinsic and extrinsic pathway through TRAIL pathway. Conclusion: These observations suggested that cis - and trans -gnetin H induces apoptosis in human lung and breast cancer cells in vitro through elevating the levels of oxidative stress and directly affecting the primary regulator of apoptosis proteins.

• Publication year

  2022

• Venue

  Mathews journal of pharmaceutical science

• Publication date

  2022-09-02

• Fields of study

  Not labeled

• Identifiers
  DOI 10.30654/mjps.10007
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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