Antiproliferative Effect of Aminoethyl-Chitooligosaccharide on Human Lung A549 Cancer Cells

• Main Authors: Dai Hung Ngo, Dai Nghiep Ngo, Se-Kwon Kim, Thanh Sang Vo
• Format: Article
• Language: English
• Published: MDPI AG 2019-05-01
• Series: Biomolecules
• Subjects: chitooligosaccharide; proliferation; apoptosis; A549 cells; caspase-3
• Online Access: https://www.mdpi.com/2218-273X/9/5/195

The aminoethyl−chitooligosaccharide (AE-COS) was reported to inhibit human gastric cancer cell proliferation and human fibrosarcoma cell invasion. In this study, the role of AE-COS in down-regulation of proliferation of human lung A549 cancer cells was evaluated. It was found that AE-COS was able to reduce A549 cell proliferation to (32 ± 1.3)% at a concentration of 500 µg/mL. Moreover, AE-COS treatment caused suppression on COX-2 expression in a dose-dependent manner. Notably, the role of AE-COS in induction of cell apoptosis was observed via decreasing Bcl-2 expression and increasing caspase-3 and -9 activation. Accordingly, the antiproliferative effect of AE-COS was indicated due to suppression of cell proliferation and induction of cell apoptosis, suggesting AE-COS as a promising chemotherapy agent for treatment of lung cancer.