Self‐Immolative Activation of β‐Galactosidase‐Responsive Probes for In Vivo MR Imaging in Mouse Models

Abstract Our lab has developed a new series of self‐immolative MR agents for the rapid detection of enzyme activity in mouse models expressing β‐galactosidase (β‐gal). We investigated two molecular architectures to create agents that detect β‐gal activity by modulating the coordination of water to Gd III. The first is an intermolecular approach, wherein we designed several structural isomers to maximize coordination of endogenous carbonate ions. The second involves an intramolecular mechanism for q modulation. We incorporated a pendant coordinating carboxylate ligand with a 2, 4, 6, or 8 carbon linker to saturate ligand coordination to the Gd III ion. This renders the agent ineffective. We show that one agent in particular (6‐C pendant carboxylate) is an extremely effective MR reporter for the detection of enzyme activity in a mouse model expressing β‐gal..

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:59

Enthalten in:

Angewandte Chemie International Edition - 59(2020), 1, Seite 388-394

Beteiligte Personen:

Lilley, Laura M. [VerfasserIn]
Kamper, Sarah [VerfasserIn]
Caldwell, Michael [VerfasserIn]
Chia, Zer Keen [VerfasserIn]
Ballweg, David [VerfasserIn]
Vistain, Luke [VerfasserIn]
Krimmel, Jeffrey [VerfasserIn]
Mills, Teresa Anne [VerfasserIn]
MacRenaris, Keith [VerfasserIn]
Lee, Paul [VerfasserIn]
Waters, Emily Alexandria [VerfasserIn]
Meade, Thomas J. [VerfasserIn]

BKL:

35.00

Anmerkungen:

© 2020 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim

Umfang:

7

doi:

10.1002/anie.201909933

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

WLY001967495