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Antiproliferative activity of yatein isolated from Austrocedrus chilensis against murine myeloma cells: Cytological studies and chemical investigations.
MedLine Citation:
PMID:  25420758     Owner:  NLM     Status:  Publisher    
Abstract Context: Fitzroya cupressoides (Molina) I. M. Johnst. and Austrocedrus chilensis (D. Don) Pic.Serm. & Bizzarri are two Chilean Cupressaceae that are naturally resistant to biodegradation. Secondary metabolites from these species display a variety of biological activities. Objective: To evaluate the antiproliferative activity of two lignans, a diterpene and a flavonol isolated from A. chilensis and F. cupressoides, to elucidate their cytological effects on P3X murine myeloma cells. Materials and methods: The antiproliferative activity of yatein, isotaxiresinol, ferruginol, and isorhamnetin was evaluated in vitro using the MTT assay. The effect of yatein at the cellular level, due to its high antiproliferative activity was evaluated. P3X cells treated for 24 h with 12.5 and 25 µg/mL of yatein were also examined at the cytological level using immunofluorescence and scanning and transmission electron microscopy. Results: Yatein, a lignan isolated from A. chilensis, potentially inhibited P3X murine myeloma cell proliferation, resulting in approximately 75% cell death in response to a 25 µg/mL treatment with the lignan. P3X cells lost membrane integrity at the nuclear and cytoplasmic levels, including organelles, in response to yatein treatment (12.5 µg/mL), and we observed changes in the cytoplasmic organization and distribution of microtubules. The other compounds tested had low activity. Discussion and conclusions: Yatein is a lignan precursor of podophyllotoxin, a key agent in anticancer drugs. Due to its structural similarities to podophyllotoxin, yatein could have similar cytoplasmic target(s), such as the microtubular apparatus. These findings suggest that yatein may be of potential pharmacological interest and warrants further investigation in human cell lines.
César Donoso-Fierro; Antonio Tiezzi; Elisa Ovidi; Donatella Ceccarelli; Doriana Triggiani; Fabio Mastrogiovanni; Anna Rita Taddei; Claudia Pérez; José Becerra; Mario Silva; Daniele Passarella
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-11-25
Journal Detail:
Title:  Pharmaceutical biology     Volume:  -     ISSN:  1744-5116     ISO Abbreviation:  Pharm Biol     Publication Date:  2014 Nov 
Date Detail:
Created Date:  2014-11-25     Completed Date:  -     Revised Date:  2014-11-26    
Medline Journal Info:
Nlm Unique ID:  9812552     Medline TA:  Pharm Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-8     Citation Subset:  -    
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