Cyanobacteria Research Yields Promising Results in Anticancer Activity

Strategic Insights -

Researchers at Islamic Azad University have found that cyanobacteria can produce bioactive compounds with high antioxidant and anticancer activities when exposed to red LED light and optimized phosphate concentrations. The study, published in Discover Applied Sciences, demonstrates the potential of cyanobacteria as a biotechnological resource for pharmaceutical applications.

Key Takeaways:

  • The study investigated the combined effects of LED light wavelengths and phosphate concentrations on the growth and biological activity of Fischerella sp., a species of cyanobacteria.
  • Red light significantly enhanced the production of bioactive compounds and increased the antioxidant and anticancer activities of Fischerella sp.
  • Higher phosphate concentrations (up to 0.08 g/L) boosted the effects of red light on bioactive compound production and antioxidant activity.
  • The cytotoxicity of the extracts on human gastric cancer cells (AGS) was assessed using the MTT assay, showing potential in anticancer applications.
  • The study integrated light-nutrient interaction in cyanobacteria, providing a novel perspective on optimizing bioactive metabolite production.
  • The research highlights the importance of environmental factors, such as light and phosphate concentrations, in influencing the growth and metabolism of cyanobacteria.

Statistics:

  • 45, 36, 33, and 10 mmol photons m-2 s-1 were the corresponding light intensities for white, blue, green, and red LEDs, respectively.
  • Total phenolic, flavonoid, tannin, and protein content were measured, with results showing a significant increase in antioxidant activity under red light and optimized phosphate concentrations.
  • Antioxidant activity was evaluated using DPPH and ABTS assays, with results showing a significant increase in antioxidant activity under red light and optimized phosphate concentrations.
  • The cytotoxicity of the extracts on human gastric cancer cells (AGS) was assessed using the MTT assay, with results showing potential in anticancer applications.

Sources:

  • The effect of LED light irradiation and phosphate concentrations on the biological activity of Fischerella Sp. Discover Applied Sciences, 2025,7(10):1-22. The publisher for Discover Applied Sciences is Springer.
  • NewsRx LLC. Studies Conducted at Islamic Azad University on Cyanobacteria Recently Published (The effect of LED light irradiation and phosphate concentrations on the biological activity of Fischerella Sp). Cancer Weekly. October 21, 2025; p 1505.