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Marine microalgae show promise as sources of novel bioactive compounds. This study screened 33 strains for antimicrobial and anti-proliferative potential, identifying key species for further drug discovery research.

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Area of Science:

  • Marine Biology
  • Biotechnology
  • Natural Products Chemistry

Background:

  • Oceans are rich sources of diverse organisms with unique metabolic capabilities, making them valuable for bioprospecting.
  • Microalgae are recognized as potential 'cell factories' for synthesizing bioactive substances.
  • The MAREX Project, funded by the European Union, aims to discover novel marine bioactive compounds for industrial applications.

Purpose of the Study:

  • To conduct a bioprospecting study on 33 microalgae strains.
  • To evaluate the antimicrobial, anti-proliferative, and apoptotic potential of microalgal extracts.
  • To identify promising microalgae strains for further investigation in drug discovery.

Main Methods:

  • Culturing of 33 microalgae strains at laboratory scale.
  • Preparation of two extracts per strain: biomass and cell-free culture medium.
  • Screening of extracts for antimicrobial, anti-proliferative, and apoptotic activities.

Main Results:

  • Screening provided data on the bioactivity of various microalgal extracts.
  • Specific strains, including Alexadrium tamarensis WE, Gambierdiscus australes, Prorocentrum arenarium, Prorocentrum hoffmannianum, and Prorocentrum reticulatum (Pr-3), were selected for further study.
  • The study identified potential sources of novel therapeutic compounds.

Conclusions:

  • Cultured microalgae represent a viable resource for discovering new drugs.
  • The selected microalgae strains warrant further investigation for their therapeutic potential.
  • This research supports the ongoing development of marine-derived pharmaceuticals.