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Structural Characterization and Cytotoxic Activity Evaluation of Ulvan Polysaccharides Extracted from the Green Algae Ulva papenfussii

dc.contributor.author Vy Ha Nguyen Tran
dc.contributor.author Maria Dalgaard Mikkelsen
dc.contributor.author Hai Bang Truong
dc.contributor.author Hieu Nhu Mai Vo
dc.contributor.author Thinh Duc Pham
dc.contributor.author Hang Thi Thuy Cao
dc.contributor.author Thuan Thi Nguyen
dc.contributor.author Anne S. Meyer
dc.contributor.author Thuy Thu Thi Thanh
dc.contributor.author Tran Thi Thanh Van
dc.date.accessioned 2024-03-07T02:05:43Z
dc.date.available 2024-03-07T02:05:43Z
dc.date.issued 2023
dc.description.abstract <jats:p>Ulvan, a sulfated heteropolysaccharide with structural and functional properties of interest for various uses, was extracted from the green seaweed Ulva papenfussii. U. papenfussii is an unexplored Ulva species found in the South China Sea along the central coast of Vietnam. Based on dry weight, the ulvan yield was ~15% (w/w) and the ulvan had a sulfate content of 13.4 wt%. The compositional constitution encompassed L-Rhamnose (Rhap), D-Xylose (Xylp), D-Glucuronic acid (GlcAp), L-Iduronic acid (IdoAp), D-Galactose (Galp), and D-Glucose (Glcp) with a molar ratio of 1:0.19:0.35:0.52:0.05:0.11, respectively. The structure of ulvan was determined using High-Performance Liquid Chromatography (HPLC), Fourier Transform Infrared Spectroscopy (FT-IR), and Nuclear Magnetic Resonance spectroscopy (NMR) methods. The results showed that the extracted ulvan comprised a mixture of two different structural forms, namely (“A3s”) with the repeating disaccharide [→4)-β-D-GlcAp-(1→4)-α-L-Rhap 3S-(1→]n, and (“B3s”) with the repeating disaccharide [→4)-α-L-IdoAp-(1→4)-α-L-Rhap 3S(1→]n. The relative abundance of A3s, and B3s was 1:1.5, respectively. The potential anticarcinogenic attributes of ulvan were evaluated against a trilogy of human cancer cell lineages. Concomitantly, Quantitative Structure–Activity Relationship (QSAR) modeling was also conducted to predict potential adverse reactions stemming from pharmacological interactions. The ulvan showed significant antitumor growth activity against hepatocellular carcinoma (IC50 ≈ 90 µg/mL), human breast cancer cells (IC50 ≈ 85 µg/mL), and cervical cancer cells (IC50 ≈ 67 µg/mL). The QSAR models demonstrated acceptable predictive power, and seven toxicity indications confirmed the safety of ulvan, warranting its candidacy for further in vivo testing and applications as a biologically active pharmaceutical source for human disease treatment.</jats:p>
dc.identifier.doi 10.3390/md21110556
dc.identifier.uri http://repository.vlu.edu.vn:443/handle/123456789/12895
dc.language.iso en_US
dc.relation.ispartof Marine Drugs
dc.relation.issn 1660-3397
dc.subject ulvan
dc.subject Ulva papenfussii
dc.subject structural determination
dc.subject anti-tumorigenic
dc.subject QSAR modeling
dc.title Structural Characterization and Cytotoxic Activity Evaluation of Ulvan Polysaccharides Extracted from the Green Algae Ulva papenfussii
dc.type journal-article
dspace.entity.type Publication
oaire.citation.issue 11
oaire.citation.volume 21
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