Chen Xie
Singapore
Research Article
Loss of Melanoma-associated Antigen-A1 (MAGE-A1) Reverses Docetaxel Resistance and Increases Apoptosis via p53-independent Pathway in
Gastric Cancer
Author(s): Chen Xie, Natalia Liem, Foong Ying Wong, Fui Leng Yan and Wei Peng YongChen Xie, Natalia Liem, Foong Ying Wong, Fui Leng Yan and Wei Peng Yong
Melanoma Associated Antigen (MAGE)-encoding genes have been shown to be aberrantly expressed in various
tumour types, and correlate with tumour progression and resistance to docetaxel. The objective of this study was
to elucidate the regulatory mechanism underlying MAGE-A1 related docetaxel resistance in gastric cancer cells.
Gastric cell lines with high docetaxel IC50 had higher expression of MAGE-A1 compared to cell lines with low
docetaxel IC50 (p=0.0299). Knockdown of MAGE-A1 expression also resulted in an accumulation of cell populations
in the G2/M phase of the cell cycle. An increased sensitivity to docetaxel was also observed in MAGE-A1 knockdown
gastric cell line compared to its parental cell line. Loss of MAGE-A1 expression led to an increased expression of β-III
tubulin, microtubule associated proteins, MAP4, and activation of apoptotic genes, p21, Bax and Bcl-2. S.. View More»
DOI:
10.4172/2157-2518.S6-006