Identification of Tissue-Restricted Bioreaction Suitable for in Vivo Targeting by Fluorescent Substrate Library-Based Enzyme Discovery

Kentaro Yoshioka, Toru Komatsu, Akihiro Nakada, Jun Onagi, Yugo Kuriki, Mitsuyasu Kawaguchi, Takuya Terai, Tasuku Ueno, Kenjiro Hanaoka, Tetsuo Nagano, Yasuteru Urano

研究成果: Article査読

16 被引用数 (Scopus)

抄録

Tissue-restricted bioreactions can be utilized to design chemical-biological tools and prodrugs. We have developed a fluorescent-substrate-library-based enzyme discovery approach to screen tissue extracts for enzymatic activities of interest. Assay-positive candidate proteins were identified by diced electrophoresis gel assay followed by peptide mass fingerprinting. We discovered that pyruvyl anilide is specifically hydrolyzed by carboxylesterase 2 (CES2), which is predominantly localized in the liver and kidney. We show that the pyruvyl targeting group/CES2 enzyme pair can be used to deliver the 7-amino-4-methylcoumarin fluorophore specifically to the liver and kidney in vivo. Our screening approach should be useful to find other masking group/enzyme pairs suitable for development of fluorescent substrates and prodrugs.

本文言語English
ページ(範囲)12187-12190
ページ数4
ジャーナルJournal of the American Chemical Society
137
38
DOI
出版ステータスPublished - 2015 9 30
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

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