Cancer is often difficult to early diagnose, but early diagnosis is a crucial factor for good outcome in the cancer. N-acetylglucosaminyltransferase V catalyzes an addition of b1,6-N-acetylglucosamine (GlcNAc) to the core N-glycan, many lines of evidence have demonstrated the role of N-acetylglucosaminyltransferase V (GnT-V) in the pathogenecity of colon cancer cell. One of the related example is an aberrant TIMP-1-mediated cancer progression in which deterioration of the quality of TIMP-1 is induced by glycosyl alterations through GnT-V catalysis, leading to mitigated MMP inhibition responsible for an strengthened invasive/metastatic potential of cancer cells. Accordingly the identification of target proteins for GnT-V has been an important subject for cancer biomarker discovery. We developed a protocol in which L-PHA, a lectin recognizing b1,6-GlcNAc, is conjugated to avidin-agarose complex to capture b1,6-GlcNAc-carrying serological glycoproteins and the captured glycoproteins were identified using an LTQ-FTICR mass spectrometer. Candidate proteins showing differential amounts between normal and cancer sera were confirmed by western blot analysis and will be subject to validation for valid biomarker for colon cancer.
저자
Jeong-Heon Ko [ Daejeon-KRIBB-FHCRC Research Cooperation Center, KRIBB, Daejeon ]
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.