Six new methyl angolensate type (1-6) and three new mexicanolide-type (7-9) limonoids, along with six known limonoids (10-15), were isolated from the seeds of Cipadessa baccifera. The structures of all these compounds were established by extensive 1D, 2D NMR, and HRESIMS experiments, and structures of 11 and 13 were further confirmed by a single crystal X-ray diffraction analysis, which are reported for the first time. The cytotoxic activities of these isolates were also studied against A549, MCF7, ME-180, HT-29, B-16, ACHN cancer cell lines using MTT assay, and results indicated that compounds 4, 10, and 14 displayed potent cytotoxic activity against B-16, ACHN cell lines with an IC50 values of 8.51 and 7.0 μg/mL, respectively.
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http://dx.doi.org/10.1016/j.phytochem.2013.11.006 | DOI Listing |
Front Chem
July 2024
Pharmaceutical Sciences Postgraduate Program, Federal University of Pará, Belém, PA, Brazil.
The oil of showed leishmanicidal activity, with its activity being related to limonoids, but fatty acids are the major constituents of this oil. The present study evaluated the physicochemical, pharmacokinetic, and toxicity profiles of limonoids and fatty acids already identified in the species. Based on these results, 2 limonoids (methyl angosinlate, 6-OH-methyl angosinlate) and 2 fatty acids (arachidic acid; myristic acid) were selected for the prediction of possible targets and molecular docking.
View Article and Find Full Text PDFCell Biochem Biophys
June 2022
Department of Hepatobiliary Surgery, The 900th Hospital of the Joint Logistic Support Force of People's Liberation Army, Fuzhou, Fujian Province, 350025, P. R. China.
Though patients with hepatocellular carcinoma (HCC) benefit from the treatment of immune checkpoint inhibitor (ICB), it is still of vital significance to develop more effective drugs and predict patients' response to ICB therapy. Herein, we utilized single sample gene set enrichment analysis (ssGSEA) to score the downloaded tumor samples from TCGA-LIHC based on 29 immune gene sets, thus reflecting the immunologic competence of samples. Then samples were classified into high, moderate, and low immunity groups.
View Article and Find Full Text PDFInt J Mol Sci
December 2021
Key Laboratory of Natural Pesticides and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
Plant-originated triterpenes are important insecticidal molecules. The research on insecticidal activity of molecules from Meliaceae plants has always received attention due to the molecules from this family showing a variety of insecticidal activities with diverse mechanisms of action. In this paper, we discuss 102 triterpenoid molecules with insecticidal activity of plants of eight genera (, , , , , , , and ) in Meliaceae.
View Article and Find Full Text PDFPhytochemistry
January 2021
National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phaholyothin Road, Klong Luang, Pathumthani, 12120, Thailand.
Three previously undescribed limonoids, fulvifomins A-C, together with two known compounds, 6-deoxydetigloyl-swietenine acetate and methyl angolensate, were isolated from fruiting bodies of the wood-rot fungus Fulvifomes xylocarpicola (Hymenochaetaceae), growing on the mangrove tree Xylocarpus granatum (Meliaceae). The structures were elucidated on the basis of NMR spectroscopic and mass spectrometry data, and X-ray crystallographic analysis (for fulvifomin A). A number of similar limonoids have been isolated from higher plants of the family Meliaceae, including X.
View Article and Find Full Text PDFJ Nat Med
June 2020
BioMedical Research Centre, Norwich Medical School, University of East Anglia, Norwich, NR4 7TJ, UK.
Six limonoids [kotschyienone A and B (1, 2), 7-deacetylgedunin (3), 7-deacetyl-7-oxogedunin (4), andirobin (5) and methyl angolensate (6)] were investigated for their trypanocidal and leishmanicidal activities using bloodstream forms of Trypanosoma brucei and promastigotes of Leishmania major. Whereas all compounds showed anti-trypanosomal activity, only compounds 1-4 displayed anti-leishmanial activity. The 50% growth inhibition (GI) values for the trypanocidal and leishmanicidal activity of the compounds ranged between 2.
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