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Avenanthramide-C Reduces the Viability of MDA-MB-231 Breast Cancer Cells Through an Apoptotic Mechanism

Jordan Hastings, Jason Kenealey

Cancer Cell Int. 2017 Oct 18;17:93.

PMID: 29075150

Abstract:

Background:
Avenanthramides (AVN) are a relatively unstudied family of phytochemicals that could be novel chemotherapeutics. These compounds, found in oats, are non-toxic to healthy cells and have been shown to reduce viability of human colon and liver cancers in vitro. However, these studies do not elucidate a molecular mechanism for individual AVN. In this study we aim to see the effects of AVN on MDA-MB-231 breast cancer cells.
Methods:
An MTT assay was used to determine cell viability. Staining and analysis with a flow cytometer was used to identify cell cycle progression and apoptosis. FloJo software was used to analyze the cytometric data. In all experiments, statistical significance was determined by a two-tailed t test.
Results:
This study demonstrates that AVN-A, B, and C individually reduce viability in the MDA-MB-231 breast cancer cell line. AVN-C has the most potent decrease in tumor cell viability, decreasing viable cells to below 25% at 400 µM when compared to control after 96 h. We demonstrate that treatment with AVN-C causes DNA fragmentation and accumulation of over 90% of cells into a sub G1 cell cycle population. Further, we conclude that AVN-C treated cells activate apoptosis because 97% of treated cells stain positive for annexin V while 91% have caspase-3/7 activity, a late marker of apoptosis.
Conclusions:
Breast cancer cells treated with AVN-C have a decrease in cell viability, an increase in the sub G1 population, and stain positive for both annexin V and caspase activity, indicating that AVN-C induces apoptosis in breast cancer cells. These compounds may be able to act as chemotherapeutics as demonstrated through future in vivo studies.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP116764159 Avenanthramide C Avenanthramide C 116764-15-9 Price
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