In vivo imaging of fluorescent albumin modified with pyruvylated-human-type complex oligosaccharide reveals sialylation-like biodistribution and kinetics

Ryoichiro Fukuhara, Akihiro Ogura, Sho Yoshinaga, Takamasa Fukunaga, Takashi Kinoshita, Wataru Sumiyoshi, Yujiro Higuchi, Katsunori Tanaka, Kaoru Takegawa

研究成果: ジャーナルへの寄稿学術誌査読

抄録

Both pyruvylation and sialylation onto the terminus of oligosaccharides of N-glycoproteins seem to be structurally and functionally similar with a property of conferring negative charge. However, detailed molecular characteristics of pyruvylation and sialylation in vivo were elusive. Here, to investigate an effect of terminal pyruvylation to N-glycan on in vivo biodistribution and kinetics, we prepared human serum albumin (HSA) modified with pyruvylated N-glycan (PvG), conjugated with HiLyte Fluor 750 (FL750-PvGHSA). In vivo imaging by using FL750-PvGHSA revealed that terminally pyruvylated N-glycoalbumin was excreted like sialylated N-glycoalbumin, suggesting that pyruvylation mimics sialylation in in vivo biodistribution and kinetics of N-glycoproteins. Terminal pyruvylation onto N-glycans can be a potential tool for a novel glycoengineering strategy.

本文言語英語
論文番号116943
ジャーナルBioorganic and Medicinal Chemistry
70
DOI
出版ステータス出版済み - 9月 15 2022

!!!All Science Journal Classification (ASJC) codes

  • 生化学
  • 分子医療
  • 分子生物学
  • 薬科学
  • 創薬
  • 臨床生化学
  • 有機化学

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