Cytotoxic Effects of Sarcophyton Sp. Soft Corals-Is There a Correlation to Their NMR Fingerprints?

Overview

Journal Mar Drugs

Publisher MDPI

Specialties Biology
Pharmacology

Date 2017 Jul 6

PMID 28677625

Citations 11

Authors

Mohamed A Farag

Mostafa I Fekry

Montasser A Al-Hammady

Mohamed N Khalil

Hesham R El-Seedi

Achim Meyer

Andrea Porzel

Hildegard Westphal

Ludger A Wessjohann

Affiliations

Soon will be listed here.

Abstract

sp. soft corals are rich in cembranoid diterpenes, which represent the main chemical defense of corals against their natural predators in addition to their myriad biological effects in humans. Quantitative NMR (qNMR) was applied for assessing the diterpene variation in 16 soft coral specimens in the context of their genotype, origin, and growing habitat. qNMR revealed high diterpene levels in sp. compared to and , with (ent)sarcophines as major components (17-100 µg/mg) of the coral tissues. Multivariate data analysis was employed to classify samples based on the quantified level of diterpenes, and compared to the untargeted NMR approach. Results revealed that qNMR provided a stronger classification model of sp. than untargeted NMR fingerprinting. Additionally, cytotoxicity of soft coral crude extracts was assessed against androgen-dependent prostate cancer cell lines (PC3) and androgen-independent colon cancer cell lines (HT-29), with IC values ranging from 10-60 µg/mL. No obvious correlation between the extracts' IC values and their diterpene levels was found using either Spearman or Pearson correlations. This suggests that this type of bioactivity may not be easily predicted by NMR metabolomics in soft corals, or is not strongly correlated to measured diterpene levels.

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