Galloyl Carbohydrates with Antiangiogenic Activity Mediated by Capillary Morphogenesis Gene 2 (CMG2) Protein Binding
摘要:
We previously showed that a small molecule of natural origin, 1,2,3,4,6-penta-O-galloyl-beta-D-glucopyranose (PGG), binds to capillary morphogenesis gene 2 (CMG2) with a submicromolar IC50 and also has antiangiogenic activity in vitro and in vivo. In this work, we synthetized derivatives of PGG with different sugar cores and phenolic substituents and tested these as angiogenesis inhibitors. In a high-throughput Forster resonant energy transfer-based binding assay, we found that one of our synthetic analogues (1,2,3,4,6-penta-O-galloyl-beta-D-mannopyranose (PGM)), with mannose as central core and galloyl substituents, exhibit higher (up to 10x) affinity for CMG2 than the natural glucose prototype PGG and proved to be a potent angiogenesis inhibitor. These findings demonstrate that biochemical CMG2 binding in vitro predicts inhibition of endothelial cell migration ex vivo and antiangiogenic activity in vivo. The molecules herein described, and in particular PGM, might be useful prototypes for the development of novel agents for angiogenesis-dependent diseases, including blinding eye disease and cancer.
Plasminogen Activator Inhibitor-1 Inhibitors and Methods of Use Thereof to Modulate Lipid Metabolism
申请人:Lawrence Daniel A.
公开号:US20100137194A1
公开(公告)日:2010-06-03
The invention relates to plasminogen activator-1 (PAI-1) inhibitor compounds and uses thereof in the treatment of any disease or condition associated with elevated PAI-1. The invention includes, but is not limited to, the use of such compounds to modulate lipid metabolism and treat conditions associated with elevated PAI-1, cholesterol, or lipid levels.
PLASMINOGEN ACTIVATOR INHIBITOR-1 INHIBITORS AND METHODS OF USE THEREOF TO MODULATE LIPID METABOLISM
申请人:THE REGENTS OF THE UNIVERSITY OF MICHIGAN
公开号:US20160009748A1
公开(公告)日:2016-01-14
The invention relates to plasminogen activator-1 (PAI-1) inhibitor compounds and uses thereof in the treatment of any disease or condition associated with elevated PAI-1. The invention includes, but is not limited to, the use of such compounds to modulate lipid metabolism and treat conditions associated with elevated PAI-1, cholesterol, or lipid levels.
activities. Because these analogs were only partially characterized by NMR, we would like to report herein the complete H and C assignments of pergalloylated D-glucose (1), D-mannose (2), Dgalactose (3), D-xylose (4), L-ribose (5), L-arabinose (6), L-rhamnose (7), and D-fucose (8) by using a combination of one-dimensional and two-dimensional NMR experiments.
单宁是广泛分布于植物界的次生代谢物。单宁的一个共同特征是它们的酚单元,它们可以连接在一起形成高度多样化的化学结构。由于这些化合物构成了摄入的食品和饮料的重要组成部分,因此对它们的生物效应进行了彻底的研究。最近,我们对加拿大山茱萸进行了植物化学研究,这是一种在北美野生生长的丰富开花植物,果实可食用。进行了初步的生物活性筛选,结果显示加拿大 C. 的提取物对 1 型单纯疱疹病毒具有活性。在生物测定引导的分级分离之后,鉴定了可水解的单宁。这些化合物之一,即 1,2,3,4,6-penta-O-galloyl-β-D-吡喃葡萄糖 (PGG),已成为张最近审查的几项药物研究的主题。PGG 的生物学和药用特性多种多样,包括抗癌、抗氧化、抗诱变、抗炎、抗过敏、降胆固醇、抗凝、抗肾结石、抗惊厥、抗病毒和抗菌活性。此外,合成了一系列 PGG 类似物,发现它是刺激脂肪细胞葡萄糖转运的最佳支架。其中一些化合物也