Synthesis and evaluation of a radioiodinated trisaccharide derivative as a synthetic substrate for a sensitive N-acetylglucosaminyltransferase V radioassay
作者:Takahiro Mukai、Masayori Hagimori、Kenji Arimitsu、Takahiro Katoh、Misa Ukon、Tetsuya Kajimoto、Hiroyuki Kimura、Yasuhiro Magata、Eiji Miyoshi、Naoyuki Taniguchi、Manabu Node、Hideo Saji
DOI:10.1016/j.bmc.2011.05.047
日期:2011.7
N-acetylglucosaminyltransferase V (GnT-V) is one of the most relevant glycosyltransferases to tumor invasion and metastasis. Based on previous findings of molecular recognition between GnT-V and synthetic substrates, we designed and synthesized a p-iodophenyl-derivatized trisaccharide, 2-(4-iodophenyl)ethyl 6-O-[2-O-(2-acetamido-2-deoxy-β-d-glucopyranosyl)-α-d-mannopyranosyl]-β-d-glucopyranoside (IPGMG
N-乙酰氨基葡萄糖氨基转移酶V(GnT-V)是与肿瘤侵袭和转移最相关的糖基转移酶之一。基于以前在GnT-V和合成底物之间的分子识别的发现,我们设计和合成了对碘苯基衍生的三糖2-(4-碘苯基)乙基6- O- [2- O-(2-acetamido-2) -脱氧-β - d-吡喃葡萄糖基)-α - d-甘露吡喃糖基]-β- d-吡喃葡萄糖苷(IPGMG,1)及其放射性标记的[ 125 I] IPGMG([ 125 I] 1),用于分析体外GnT-V活性。三丁基锡衍生物2- [4-(n-三丁基锡烷基)苯基]乙基6- O- [2- O-(3,4,6-三-O-乙酰基-2-乙酰氨基-2-脱氧-β - d-吡喃葡萄糖基)-3,4,6-合成了三-O-乙酰基-α - d-甘露吡喃糖基] -2,3,3,4-三-O-乙酰基-β - d-吡喃葡萄糖苷(21)作为制备[ 125 I] 1的前体。使用过氧化氢作为氧化剂