Design, Synthesis, and Initial Evaluation of a High Affinity Positron Emission Tomography Probe for Imaging Matrix Metalloproteinases 2 and 9
摘要:
The activity of matrix metalloproteinases (MMPs) is elevated locally under many pathological conditions. Gelatinases MMP2 and MMP9 are of particular interest because of their implication in angiogenesis, cancer cell proliferation and metastasis, and atherosclerotic plaque rupture. The aim of this study was to identify and develop a selective gelatinase inhibitor for imaging active MMP2/MMP9 in vivo. We synthesized a series of N-sulfonylamino acid derivatives with low to high nanomolar inhibitory potencies. (R)-2-(4-(4-Fluorobenzamido)phenylsulfonamido)-3-(1H-indol-3-yl)propanoic acid (7) exhibited the best in vitro binding properties: MMP2 IC50 = 1.8 nM, MMP9 IC50 = 7.2 nM. Radiolabeling of 7 with no carrier added F-18-radioisotope was accomplished starting from iodonium salts as precursors. The radiochemical yield strongly depended on the iodonium counteranion (ClO4- > Br- > TFA(-) > tosylate). F-18-7 was obtained in up to 20% radiochemical yield (decay corrected), high radiochemical purity, and >90 GBq/mu mol specific radioactivity. The radiolabeled compound showed excellent stability in vitro and in mice in vivo.
Design, Synthesis, and Initial Evaluation of a High Affinity Positron Emission Tomography Probe for Imaging Matrix Metalloproteinases 2 and 9
摘要:
The activity of matrix metalloproteinases (MMPs) is elevated locally under many pathological conditions. Gelatinases MMP2 and MMP9 are of particular interest because of their implication in angiogenesis, cancer cell proliferation and metastasis, and atherosclerotic plaque rupture. The aim of this study was to identify and develop a selective gelatinase inhibitor for imaging active MMP2/MMP9 in vivo. We synthesized a series of N-sulfonylamino acid derivatives with low to high nanomolar inhibitory potencies. (R)-2-(4-(4-Fluorobenzamido)phenylsulfonamido)-3-(1H-indol-3-yl)propanoic acid (7) exhibited the best in vitro binding properties: MMP2 IC50 = 1.8 nM, MMP9 IC50 = 7.2 nM. Radiolabeling of 7 with no carrier added F-18-radioisotope was accomplished starting from iodonium salts as precursors. The radiochemical yield strongly depended on the iodonium counteranion (ClO4- > Br- > TFA(-) > tosylate). F-18-7 was obtained in up to 20% radiochemical yield (decay corrected), high radiochemical purity, and >90 GBq/mu mol specific radioactivity. The radiolabeled compound showed excellent stability in vitro and in mice in vivo.
Various N-sulfonylamino acid derivatives were synthesized and evaluated for their in vitro and in vivo activities to inhibit type IV collagenase (MMP-9 and MMP-2). When the amino acid residue and the sulfonamide moiety were modified, their inhibitory activities were greatly affected by the structure of the sulfonamide moiety. A series of aryl sulfonamide derivatives containing biaryl, tetrazole, amide, and triple bond were found to be potent and highly selective inhibitors of MMP-9 and MMP-2 In addition, these compounds were orally active in animal models of tumor growth and metastasis. These results revealed the potential of the N-sulfonylamino acid derivatives as a new type of candidate drug for the treatment of cancer.
Design, Synthesis, and Initial Evaluation of a High Affinity Positron Emission Tomography Probe for Imaging Matrix Metalloproteinases <b>2</b> and <b>9</b>
作者:Svetlana V. Selivanova、Timo Stellfeld、Tobias K. Heinrich、Adrienne Müller、Stefanie D. Krämer、P. August Schubiger、Roger Schibli、Simon M. Ametamey、Bernhard Vos、Jörg Meding、Marcus Bauser、Joachim Hütter、Ludger M. Dinkelborg
DOI:10.1021/jm400156p
日期:2013.6.27
The activity of matrix metalloproteinases (MMPs) is elevated locally under many pathological conditions. Gelatinases MMP2 and MMP9 are of particular interest because of their implication in angiogenesis, cancer cell proliferation and metastasis, and atherosclerotic plaque rupture. The aim of this study was to identify and develop a selective gelatinase inhibitor for imaging active MMP2/MMP9 in vivo. We synthesized a series of N-sulfonylamino acid derivatives with low to high nanomolar inhibitory potencies. (R)-2-(4-(4-Fluorobenzamido)phenylsulfonamido)-3-(1H-indol-3-yl)propanoic acid (7) exhibited the best in vitro binding properties: MMP2 IC50 = 1.8 nM, MMP9 IC50 = 7.2 nM. Radiolabeling of 7 with no carrier added F-18-radioisotope was accomplished starting from iodonium salts as precursors. The radiochemical yield strongly depended on the iodonium counteranion (ClO4- > Br- > TFA(-) > tosylate). F-18-7 was obtained in up to 20% radiochemical yield (decay corrected), high radiochemical purity, and >90 GBq/mu mol specific radioactivity. The radiolabeled compound showed excellent stability in vitro and in mice in vivo.