[EN] ACTIVITY-BASED PROBE COMPOUNDS, COMPOSITIONS, AND METHODS OF USE<br/>[FR] COMPOSÉS DE SONDE BASÉE SUR L'ACTIVITÉ, COMPOSITIONS ET MÉTHODES D'UTILISATION
申请人:UNIV LELAND STANFORD JUNIOR
公开号:WO2014145257A3
公开(公告)日:2014-12-31
Improved Quenched Fluorescent Probe for Imaging of Cysteine Cathepsin Activity
作者:Martijn Verdoes、Kristina Oresic Bender、Ehud Segal、Wouter A. van der Linden、Salahuddin Syed、Nimali P. Withana、Laura E. Sanman、Matthew Bogyo
DOI:10.1021/ja4056068
日期:2013.10.2
The cysteine cathepsins are a family of proteases that play important roles in both normal cellular physiology and many human diseases. In cancer, the activity of many of the cysteine cathepsins is upregulated and can be exploited for tumor imaging. Here we present the design and synthesis of a new class of quenched fluorescent activity-based probes (qABPs) containing a phenoxymethyl ketone (PMK) electrophile. These reagents show enhanced in vivo properties and broad reactivity resulting in dramatically improved labeling and tumor imaging properties compared to those of previously reported ABPs.