Oxidative Degradations of the Side Chain of Unsaturated Ent-labdanes. Part II

Espinoza, Luis; Marín, Karen Catalán; Altamirano, Héctor Carrasco; Fritis, Mauricio Cuellar; Chamy, Marı́a C.

doi:10.3390/12122605

Cited by 1 publication

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References 21 publications

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“…Traditionally, various species of the genus Calceolaria are used as bactericidal agents, for treating stomach aches and as sweeteners [ 16 , 17 , 18 ]. Previous investigations reported about the isolation and structural determination of the mixture of ent -labdanes and the preparation of derivatives from Calceolaria inamoena [ 19 , 20 , 21 ] and the evaluation of the in vitro cytotoxic activities against cultured human cancer cells [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Diterpenylhydroquinones from Natural ent-Labdanes Induce Apoptosis through Decreased Mitochondrial Membrane Potential

et al. 2013

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In this study, we examined the cytotoxic effects of seven ent-labdane derivatives 1–7 (0–100 μM) in different human cancer cell lines. Our results showed that compounds 1–3 exhibited significant dose-dependent inhibition on the growth of the three different human cell lines, according to the sulphorhodamine B assay and produced morphological changes consistent with apoptosis, as confirmed by Hoestch 3342 staining analysis. They induced apoptosis in various cancer cell lines, as shown by nuclear condensation and fragmentation and caspase 3 activation. Such induction was associated with the depletion of mitochondrial membrane potential. These activities led to the cleavage of caspases and the trigger of cell death process. Overall, the compounds showed potent proapoptotic effects on the two different cancer cell lines, suggesting that the compounds deserve more extensive investigation of their potential medicinal applications.

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