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New tigliane-type diterpenoids from Euphorbia aellenii Rech. f. with immunomodulatory activity

The cytotoxic chloroform fraction of Euphorbia aellenii Rech. F. (Euphorbiaceae) afforded two new phorbol diterpenoids: 4-deoxy-4α-phorbol-12-(2,3-dimethyl) butyrate-13-isobutyrate and 17-hydroxy-4-deoxy-4α-phorbol-12-(2,3-dimethyl) butyrate-13-isobutyrate. Their structures were elucidated by NMR an...

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Detalles Bibliográficos
Autores principales: Ghanadian, M., Ayatollahi, A.M., Mesaik, M.A., Afsharypuor, S., Abdalla, O.M., Kobarfard, F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications Pvt Ltd 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3203270/
https://www.ncbi.nlm.nih.gov/pubmed/22049276
Descripción
Sumario:The cytotoxic chloroform fraction of Euphorbia aellenii Rech. F. (Euphorbiaceae) afforded two new phorbol diterpenoids: 4-deoxy-4α-phorbol-12-(2,3-dimethyl) butyrate-13-isobutyrate and 17-hydroxy-4-deoxy-4α-phorbol-12-(2,3-dimethyl) butyrate-13-isobutyrate. Their structures were elucidated by NMR and other spectroscopic methods. The immunomodulating potentials of the isolated compounds were tested using standard proliferation and chemiluminescence assays. Compound 2 showed moderate inhibitory activity against both T-cell proliferation and reactive oxygen species (ROS) production in whole blood with IC50 of 14.0 ± 0.57 and 44.1 ± 3.8 μg/ml, respectively, while compound 1 was relatively inactive with IC50 >50 μg/mL for T-cell proliferation, and >100 μg/mL for ROS.