Eltamany EE et al. (2021), Holospiniferoside: A New Antitumor Cerebroside ...

ECB-ART-49252

Molecules 2021 Mar 12;266:. doi: 10.3390/molecules26061555.

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Holospiniferoside: A New Antitumor Cerebroside from The Red Sea Cucumber Holothuria spinifera: In Vitro and In Silico Studies.

Eltamany EE , Abdelmohsen UR , Hal DM , Ibrahim AK , Hassanean HA , Abdelhameed RFA , Temraz TA , Hajjar D , Makki AA , Hendawy OM , AboulMagd AM , Youssif KA , Bringmann G , Ahmed SA .

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Chemical investigation of the methanolic extract of the Red Sea cucumber Holothuria spinifera led to the isolation of a new cerebroside, holospiniferoside (1), together with thymidine (2), methyl-α-d-glucopyranoside (3), a new triacylglycerol (4), and cholesterol (5). Their chemical structures were established by NMR and mass spectrometric analysis, including gas chromatography-mass spectrometry (GC-MS) and high-resolution mass spectrometry (HRMS). All the isolated compounds are reported in this species for the first time. Moreover, compound 1 exhibited promising in vitro antiproliferative effect on the human breast cancer cell line (MCF-7) with IC50 of 20.6 µM compared to the IC50 of 15.3 µM for the drug cisplatin. To predict the possible mechanism underlying the cytotoxicity of compound 1, a docking study was performed to elucidate its binding interactions with the active site of the protein Mdm2-p53. Compound 1 displayed an apoptotic activity via strong interaction with the active site of the target protein. This study highlights the importance of marine natural products in the design of new anticancer agents.

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References [+] :

Abdelhameed, New Cytotoxic Natural Products from the Red Sea Sponge Stylissa carteri. 2020, Pubmed

	Figure 1. Chemical structure of compound 1, holospiniferoside.
	Figure 2. Chemical structure of compound 2, thymidine.
	Figure 3. Chemical structure of compound 3, methyl-Î±-d-glucopyranoside.
	Figure 4. Chemical structure of compound 4, triacylglycerol.
	Figure 5. Chemical structure of compound 5, cholesterol.
	Figure 6. 2D and 3D captions of compound 1.