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Coumarins from Magydaris pastinacea as inhibitors of the tumour-associated carbonic anhydrases IX and XII: isolation, biological studies and in silico evaluation.

ABSTRACT: In an in vitro screening for human carbonic anhydrase (hCA) inhibiting agents from higher plants, the petroleum ether and ethyl acetate extracts of Magydaris pastinacea seeds selectively inhibited hCA IX and hCA XII isoforms. The phytochemical investigation of the extracts led to the isolation of ten linear furocoumarins (1-10), four simple coumarins (12-15) and a new angular dihydrofurocoumarin (11). The structures of the isolated compounds were elucidated based on 1 D and 2 D NMR, MS, and ECD data analysis. All isolated compounds were inactive towards the ubiquitous cytosolic isoform hCA I and II (Ki > 10,000 nM) while they were significantly active against the tumour-associated isoforms hCA IX and XII. Umbelliprenin was the most potent coumarin inhibiting hCA XII isoform with a Ki of 5.7 nM. The cytotoxicity of the most interesting compounds on HeLa cancer cells was also investigated.

SUBMITTER: Fois B 

PROVIDER: S-EPMC7006766 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Coumarins from <i>Magydaris pastinacea</i> as inhibitors of the tumour-associated carbonic anhydrases IX and XII: isolation, biological studies and in silico evaluation.

Fois Benedetta B   Distinto Simona S   Meleddu Rita R   Deplano Serenella S   Maccioni Elias E   Floris Costantino C   Rosa Antonella A   Nieddu Mariella M   Caboni Pierluigi P   Sissi Claudia C   Angeli Andrea A   Supuran Claudiu T CT   Cottiglia Filippo F  

Journal of enzyme inhibition and medicinal chemistry 20201201 1

In an <i>in vitro</i> screening for human carbonic anhydrase (hCA) inhibiting agents from higher plants, the petroleum ether and ethyl acetate extracts of <i>Magydaris pastinacea</i> seeds selectively inhibited hCA IX and hCA XII isoforms. The phytochemical investigation of the extracts led to the isolation of ten linear furocoumarins (<b>1</b>-<b>10</b>), four simple coumarins (<b>12</b>-<b>15</b>) and a new angular dihydrofurocoumarin (<b>11</b>). The structures of the isolated compounds were  ...[more]

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