Journal
MOLECULES
Volume 25, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/molecules25173986
Keywords
cyanobacteria; antiplasmodial; cytotoxic; antifouling; Moorea; Okeania
Funding
- JSPS KAKENHI [16H04975]
- National Science, Technology, and Innovation Plan-the King Abdulaziz City for Science and Technology for the Kingdom of Saudi Arabia [11-ENV1540-03]
- Grants-in-Aid for Scientific Research [16H04975] Funding Source: KAKEN
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Cyanobacteria are reported as rich sources of secondary metabolites that provide biological activities such as enzyme inhibition and cytotoxicity. Ten depsipeptide derivatives (lyngbyabellins) were isolated from a MalaysianMoorea bouilloniiand a Red SeaOkeaniasp.: lyngbyabellins G (1), O (2), P (3), H (4), A (7), 27-deoxylyngbyabellin A (5), and homohydroxydolabellin (6). This study indicated that lyngbyabellins displayed cytotoxicity, antimalarial, and antifouling activities. The isolated compounds were tested for cytotoxic effect against human breast cancer cells (MCF7), for antifouling activity againstAmphibalanus amphitritebarnacle larvae, and for antiplasmodial effect towardsPlasmodium falciparum. Lyngbyabellins A and G displayed potent antiplasmodial effect againstPlasmodium, whereas homohydroxydolabellin showed moderate effect. For antifouling activity, the side chain decreases the activity slightly, but the essential feature is the acyclic structure. As previously reported, the acyclic lyngbyabellins are less cytotoxic than the corresponding cyclic ones, and the side chain increases cytotoxicity. This study revealed that lyngbyabellins, despite being cytotoxic agents as previously reported, also exhibit antimalarial and antifouling activities. The unique chemical structures and functionalities of lyngbyabellin play an essential role in their biological activities.
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