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Abstract Title:

Resistance-modifying Activity in Vinblastine-resistant Human Breast Cancer Cells by Oligosaccharides Obtained from Mucilage of Chia Seeds (Salvia hispanica).

Abstract Source:

Phytother Res. 2017 Apr 20. Epub 2017 Apr 20. PMID: 28425219

Abstract Author(s):

Daniel G Rosas-Ramírez, Mabel Fragoso-Serrano, Sonia Escandón-Rivera, Alba L Vargas-Ramírez, Juan P Reyes-Grajeda, Manuel Soriano-García

Article Affiliation:

Daniel G Rosas-Ramírez

Abstract:

The multidrug resistance (MDR) phenotype is considered as a major cause of the failure in cancer chemotherapy. The acquisition of MDR is usually mediated by the overexpression of drug efflux pumps of a P-glycoprotein. The development of compounds that mitigate the MDR phenotype by modulating the activity of these transport proteins is an important yet elusive target. Here, we screened the saponification and enzymatic degradation products from Salvia hispanica seed's mucilage to discover modulating compounds of the acquired resistance to chemotherapeutic in breast cancer cells. Preparative-scale recycling HPLC was used to purify the hydrolysis degradation products. All compounds were tested in eight different cancer cell lines and Vero cells. All compounds were noncytotoxic at the concentration tested against the drug-sensitive and multidrug-resistant cells (IC50 > 29.2 μM). For the all products, a moderate vinblastine-enhancing activity from 4.55-fold to 6.82-fold was observed. That could be significant from a therapeutic perspective. Copyright © 2017 John Wiley&Sons, Ltd.

Study Type : In Vitro Study

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