Dr Ronan Lordan

Available to discuss new collaborations, science outreach or speaking opportunities. Feel free to make contact via email or twitter.



Institute for Translational Medicine and Therapeutics

Perelman School of Medicine, University of Pennsylvania



Bioactive Lipids of Marine Microalga Chlorococcum sp. SABC 012504 with Anti-Inflammatory and Anti-Thrombotic Activities


Journal article


Katie Shiels, A. Tsoupras, R. Lordan, Constantina Nasopoulou, I. Zabetakis, P. Murray, S. Saha
Marine drugs, 2021

Semantic Scholar DOI PubMedCentral PubMed
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APA   Click to copy
Shiels, K., Tsoupras, A., Lordan, R., Nasopoulou, C., Zabetakis, I., Murray, P., & Saha, S. (2021). Bioactive Lipids of Marine Microalga Chlorococcum sp. SABC 012504 with Anti-Inflammatory and Anti-Thrombotic Activities. Marine Drugs.


Chicago/Turabian   Click to copy
Shiels, Katie, A. Tsoupras, R. Lordan, Constantina Nasopoulou, I. Zabetakis, P. Murray, and S. Saha. “Bioactive Lipids of Marine Microalga Chlorococcum Sp. SABC 012504 with Anti-Inflammatory and Anti-Thrombotic Activities.” Marine drugs (2021).


MLA   Click to copy
Shiels, Katie, et al. “Bioactive Lipids of Marine Microalga Chlorococcum Sp. SABC 012504 with Anti-Inflammatory and Anti-Thrombotic Activities.” Marine Drugs, 2021.


BibTeX   Click to copy

@article{katie2021a,
  title = {Bioactive Lipids of Marine Microalga Chlorococcum sp. SABC 012504 with Anti-Inflammatory and Anti-Thrombotic Activities},
  year = {2021},
  journal = {Marine drugs},
  author = {Shiels, Katie and Tsoupras, A. and Lordan, R. and Nasopoulou, Constantina and Zabetakis, I. and Murray, P. and Saha, S.}
}

Abstract

Microalgae are at the start of the food chain, and many are known producers of a significant amount of lipids with essential fatty acids. However, the bioactivity of microalgal lipids for anti-inflammatory and antithrombotic activities have rarely been investigated. Therefore, for a sustainable source of the above bioactive lipids, the present study was undertaken. The total lipids of microalga Chlorococcum sp., isolated from the Irish coast, were fractionated into neutral-, glyco-, and phospho-lipids, and were tested in vitro for their anti-inflammatory and antithrombotic activities. All tested lipid fractions showed strong anti-platelet-activating factor (PAF) and antithrombin activities in human platelets (half maximal inhibitory concentration (IC50) values ranging ~25–200 μg of lipid) with the highest activities in glyco- and phospho-lipid fractions. The structural analysis of the bioactive lipid fraction-2 revealed the presence of specific sulfoquinovosyl diacylglycerols (SQDG) bioactive molecules and the HexCer-t36:2 (t18:1/18:1 and 18:2/18:0) cerebrosides with a phytosphingosine (4-hydrosphinganine) base, while fraction-3 contained bioactive phosphatidylcholine (PC) and phosphatidylethanolamine (PE) molecules. These novel bioactive lipids of Chlorococcum sp. with putative health benefits may indicate that marine microalgae can be a sustainable alternative source for bioactive lipids production for food supplements and nutraceutical applications. However, further studies are required towards the commercial technology pathways development and biosafety analysis for the use of the microalga.


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