53104-32-8Relevant articles and documents
Structural development of p-carborane-based potent non-secosteroidal vitamin D analogs
Fujii, Shinya,Sekine, Ryota,Kano, Atsushi,Masuno, Hiroyuki,Songkram, Chalermkiat,Kawachi, Emiko,Hirano, Tomoya,Tanatani, Aya,Kagechika, Hiroyuki
, p. 5891 - 5901 (2014)
Non-secosteroidal vitamin D receptor (VDR) ligands are promising candidates for many clinical applications. We recently developed novel non-secosteroidal VDR agonists based on p-carborane (an icosahedral carbon-containing boron cluster) as a hydrophobic c
Glycodendrimersomes from Sequence-Defined Janus Glycodendrimers Reveal High Activity and Sensor Capacity for the Agglutination by Natural Variants of Human Lectins
Zhang, Shaodong,Xiao, Qi,Sherman, Samuel E.,Muncan, Adam,Ramos Vicente, Andrea D. M.,Wang, Zhichun,Hammer, Daniel A.,Williams, Dewight,Chen, Yingchao,Pochan, Darrin J.,Vértesy, Sabine,André, Sabine,Klein, Michael L.,Gabius, Hans-Joachim,Percec, Virgil
, p. 13334 - 13344 (2015)
A library of eight amphiphilic Janus glycodendrimers (Janus-GDs) presenting d-lactose (Lac) and a combination of Lac with up to eight methoxytriethoxy (3EO) units in a sequence-defined arrangement was synthesized via an iterative modular methodology. The length of the linker between Lac and the hydrophobic part of the Janus-GDs was also varied. Self-assembly by injection from THF solution into phosphate-buffered saline led to unilamellar, monodisperse glycodendrimersomes (GDSs) with dimensions predicted by Janus-GD concentration. These GDSs provided a toolbox to measure bioactivity profiles in agglutination assays with sugar-binding proteins (lectins). Three naturally occurring forms of the human adhesion/growth-regulatory lectin galectin-8, Gal-8S and Gal-8L, which differ by the length of linker connecting their two active domains, and a single amino acid mutant (F19Y), were used as probes to study activity and sensor capacity. Unpredictably, the sequence of Lac on the Janus-GDs was demonstrated to determine bioactivity, with the highest level revealed for a Janus-GD with six 3EO groups and one Lac. A further increase in Lac density was invariably accompanied by a substantial decrease in agglutination, whereas a decrease in Lac density resulted in similar or lower bioactivity and sensor capacity. Both changes in topology of Lac presentation of the GDSs and seemingly subtle alterations in protein structure resulted in different levels of bioactivity, demonstrating the presence of regulation on both GDS surface and lectin. These results illustrate the applicability of Janus-GDs to dissect structure-activity relationships between programmable cell surface models and human lectins in a highly sensitive and physiologically relevant manner.
A Condensed, Scalable Synthesis of Racemic Koningic Acid
Barbe, Guillaume,Chai, David,Chen, Bin,Dechristopher, Brian,Guay, Daniel,Levesque, Eric,Mancuso, John
, p. 6788 - 6793 (2020/07/14)
The natural product koningic acid (KA) is a selective covalent inhibitor of glyceraldehyde-3-phosphate dehydrogenase (GAPDH), a critical node in the glycolysis pathway. While KA is available commercially, sources are limited and its cost becomes rapidly prohibitive beyond the milligram scale. Additionally, a practical and flexible synthetic route to KA and analogs remains to be developed. Here we detail a new route that is operationally safer, scalable and offers a five-step reduction in the previously reported longest linear sequence.
Novel lipid-mimetic prodrugs delivering active compounds to adipose tissue
Mattarei, Andrea,Rossa, Andrea,Bombardelli, Veronica,Azzolini, Michele,La Spina, Martina,Paradisi, Cristina,Zoratti, Mario,Biasutto, Lucia
supporting information, p. 77 - 88 (2017/04/26)
Obesity and associated pathologies are a dramatically growing problem. New therapies to prevent and/or cure them are strongly needed. Adipose tissue is a logical target for pharmacological intervention, since it is now recognized to exert an important endocrine function, secreting a variety of adipokines affecting, for example, adiposity and insulin resistance. This proof of principle work focuses on the development of novel lipid-mimetic prodrugs reaching fat deposits by the same lymphatic absorption route followed by dietary triglycerides. Pterostilbene, a natural phenolic compound with potential anti-obesity effects, was used as model “cargo”, attached via a carbamate group to an ω-aminodecanoate chain linked to either position 1 or position 2 of the glycerol moiety of synthetic triglycerides. The prodrugs underwent position-selective hydrolysis when challenged with pancreatic lipases in vitro. Pterostilbene-containing triglycerides as well as pterostilbene and its metabolites were present in the adipose tissue of mice fed an obesogenic diet containing one or the other of the derivatives. For the first time this approach is used to deliver an obesity antagonist to the adipose tissue. The results demonstrate the feasibility of delivering active compounds to adipose tissue by reversibly incorporating them into triglyceride-mimetic structures. Upon release in the target site these compounds are expected to exert their pharmacological activity precisely where needed.