Seok-Jun Kim, Hyeok Gu Kang, Da-Hyun Kim, Jung-Hwan Baek, Hyun Soo Cho, Kyung-Hee Chun
언어
영어(ENG)
URL
https://www.earticle.net/Article/A346305
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원문정보
초록
영어
Galectin-1, a family of carbohydrate-binding proteins with a high affinity for 0 -galactosides, is differentially expressed by various normal and tumor tissues and appears to function in tumor progression and metastasis through the intracellular and extracellular activity. Here, we demonstrated that galectin -1 is increased in gastric malignant tissues and supports cancer sternness. Silencing of galectin-1 decreased the cancer sphere formation, side population, invasion and migration, whereas overexpression of galectin-1 increased them. We monitored changes in gene expression in galectin -1 silenced cells, employing DNA microarray analysis. The expression level of SOX2 and NANOG, a sternness-regulating transcriptional factor, was significantly decreased and confirmed by RT-PCR and western blot analysis. Interestingly, we determined the interaction between galectin-1 and SOX2. however, galectin-1 couldn't interact with 0-GlcNAcylation mutant SOX2. We predicted N -acetylglucosamine binding amino acid at galectin-1, and R71 and R74 is important to recognize 0-GlcNAcylation of SOX2. Overexpression of R71A and R74A mutant galectin-1 didn't increases cancer sternness property, such as cancer sphere formation, side population. Taken together, we suggest that galectin-1 interacts with SOX2 through 0-GlcNAcylation and increases SOX2 transcriptional activation and sternness character in gastric cancer progression.
저자
Seok-Jun Kim [ Department of Biomedical Sclence College of Natural Sclence. Chosun University ]
Hyeok Gu Kang [ Department of Biochemistry & Molecular Biology, Yonsei University College of Mediclne. Brain Korea 21 PLUS Project for Medical Sclence. Yonsei University College of Mediclne. ]
Da-Hyun Kim [ Department of Biomedical Sclence College of Natural Sclence. Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Department of Biochemistry & Molecular Biology, Yonsei University College of Mediclne. ]
Jung-Hwan Baek [ Department of Biomedical Sclence College of Natural Sclence. Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Department of Biochemistry & Molecular Biology, Yonsei University College of Mediclne. ]
Hyun Soo Cho [ Department of Systems Biology and Division of Life Sclences, Yonsei University ]
Kyung-Hee Chun [ Department of Biochemistry & Molecular Biology, Yonsei University College of Mediclne. Brain Korea 21 PLUS Project for Medical Sclence. Yonsei University College of Mediclne. ]
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.