Omega-3 EPA Curbs Cell Stress in Lab-Grown Liver Cancer Cells
Graded Preliminary — experiments in a single liver cancer cell line, with no animals or people, using EPA levels far above those normally found in human blood.
Cell, tissue or computational study. Not evidence about people yet, which is why the grade is capped at Preliminary.
- Design
- Lab study
- Participants
- N/A
- Duration
- —
- Funding
- National Natural Science Foundation of China; Fujian Provincial Science and…
In lab-grown liver cancer cells, EPA eased oxidative stress by boosting the cells' power plants and their protective enzymes.
EPA, an omega-3 fat found in fish oil, lowered the level of aggressive oxygen compounds in liver cancer cells grown in the lab. These compounds can damage cells, a process called oxidative stress. The experiments point to EPA working along two routes at once.
The researchers treated human liver cancer cells with EPA for up to 48 hours. They tracked tiny genetic snippets called miRNAs, which act as brakes on how much of certain proteins a cell makes. EPA turned one of these snippets down. That raised a protein the cell needs to build new power plants, the mitochondria. EPA turned a second snippet up. This one held back a protein called SIRT1, and afterwards three of the cell's protective enzymes became more active.
All of this happened in a single cell line in a dish. The EPA levels used were well above those normally found in human blood. Whether the same mechanism matters in animals or people has not been tested. The authors say animal studies are needed next.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.
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