GC-MS Lipidomic Profiling of the Echinoderm Marthasterias glacialis and Screening for Activity Against Human Cancer and Non-Cancer Cell Lines
David M. Pereira,
Paula B. Andrade.
Marine organisms have been increasingly regarded as an excellent source of bioactive molecules for human
health. As part of an on-going study to elucidate the chemical composition and biological activity of Marthastherias
glacialis, we report here the lipidomic profile of this organism and screening for anticancer activity. Two classes of
biologically active metabolites were identified and quantified by a GC-MS optimized method for screening several classes
of metabolites in a single run. Free fatty acids and sterols were found, including ergosterol, β-sitosterol and cholesterol
derivatives, some of which are reported in this species for the first time. Distinct assays were performed to screen extract’s
effect on viability, membrane integrity and density of three human cancer cell lines: human oestrogen receptor-positive
(ER+) breast cancer (MCF-7), human neuroblastoma (SH-SY5Y) and human colon cancer (Caco-2). Differential activity
towards the three cancer cell lines was found, SH-SY5Y cell line being the most susceptible. No activity was found for
Caco-2 cell line. Non-cancer cell lines (human dermal fibroblasts and human foreskin fibroblasts) were also tested and
revealed to be less susceptible. This work establishes M. glacialis as a potential source of bioactive molecules for further
Keywords: Breast cancer, fatty acids, GC-MS, Marthasterias glacialis L., neuroblastoma, sterols.
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