Relationship between ganglioside expression and anticancer effects of a plant-derived monoclonal antibody against epithelial cell adhesion molecule in colon cancer
The human colorectal carcinoma-associated GA733 antigen is an epithelial cell adhesion molecule (EpCAM), initially described as a cell surface protein selectively expressed in some myeloid cancers. We demonstrated that treatment with plant-derived anti-EpCAM mAb (mAbp CO17-1A) and RAW264.7 cells significantly inhibited cell growth in SW620 cells. Expression of p53 and p21 increased, whereas the expression of G1 phase-related proteins, cyclin D1, CDK4, cyclin E, and CDK, decreased. In addition, mAbp CO17-1A and RAW264.7 cell treatment decreased the expression of anti-apoptotic proteins such as Bcl-2, but the expression of pro-apoptotic proteins Bax, TNF-α, caspase-8, caspase-9, caspase-3 and caspase-6 increased. HPTLC analysis showed that the cells treated with mAbp CO17-1A and RAW264.7 cells newly expresses GM1 and GD1a. These results suggest that mAbp CO17-1A could have an anticancer effect. Further clinical investigation should be conducted on mAbp CO17-1A to determine its possible chemopreventive and/or therapeutic efficacy for the treatment of human colon cancer.
저자
Jae-Sung Ryu [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Mi-Ran Hwang [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Ju-Taek Lee [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Malg-Um Lim [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Yoon-Ju Na [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Su-Bin Lee [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Jeong-Hwan Lee [ Department of Medicine, Medical Research Institute, College of Medicine, Chung-Ang University ]
Kisung Ko [ Department of Medicine, Medical Research Institute, College of Medicine, Chung-Ang University, ]
Kyung-A Hwang [ Department of Agrofood Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon ]
Young-Kug Choo [ Department of Biological Science, College of Natural Sciences, Wonkwang University ]
Corresponding author
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.