Dalhousie University

Other

Christopher McMaster

Gordon Simms

Donald F Weaver

Fan Wu

Anette Henneberry

David Byers

Donald Weaver

Chris Barden

Annette Henneberry

Fuqiang Ban

Chris Donald Barden

Fugiang Ban

Methods and compositions are provided for the treatment of familial exudative vitreoretinopathy (FEVR) through the administration of a therapeutically effective amount of a sphingosine-1-phosphate receptor type 2 (S1PR2) antagonist. Also provided herein are (Z)-2-cyano-1-(2,6-dichloropyridin-4-yl)-3-((4-isopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)methyl)guanidine and analogs thereof, and their use in treating retinopathies and diseases characterized by insufficient angiogenesis.

S1PR2 antagonists and uses therefor

Methods and compositions are provided for the treatment of familial exudative vitreoretinopathy (FEVR) through the administration of a therapeutically effective amount of a sphingosine-1-phosphate receptor type 2 (S1PR2) antagonist. Also provided herein are (Z)-3-((2,6-dichloropyridin-4-yl)amino)-3-(((4-isopropyl-1,3-dimethyl-1H-pyrazolo[3,4-b]pyridin-6-yl)methyl)amino)acrylonitrile and analogs thereof, and their use in treating retinopathies and diseases characterized by insufficient angiogenesis.

Methods and compositions are provided for the treatment of familial exudative vitreoretinopathy (FEVR) and retinopathy of prematurity (ROP) through the administration of a therapeutically effective amount of a Sphingosine-1-phosphate receptor type 2 (S1PR2) inhibitor.

Treatment of familial exudative vitreoretinopathy through S1PR2 inhibition

The synthesis and activity of novel LpxA inhibitors is described, these inhibitors present antibacterial activity. The compounds were designed based on a receptor model developed using the crystal structure of LpxA and are arranged to have a favorable binding interaction at the active site of the enzyme. In particular, the compounds present the following formula (I) where V, W, X, Y and Z can be independently C, S, N or O and P1, P2 and P3 are ligands to bind to the three points of the proposed pharmacophore model. They can be chosen from a variety of groups.

Synthesis of novel antimicrobials

We report the first cloning and expression, from a mammalian source, of proteins capable of catalyzing choline- and ethanolaminephosphotransferase reactions (hCEPT1 and hCEPT2). Both coding regions predict highly hydrophobic proteins of 43-46.5 kDa with several predicted membrane spanning domains. A CDP-alcohol phosphotransferase motif, DG(x)2AR(x)8G(x)3D(x)3D, has been identified in both hCEPT1 and hCEPT2 choline- and ethanolamine-phosphotransferases (and several other lipid synthesizing enzymes that catalyze the formation of a phosphoester bond by the displacement of CMP from a CDP-alcohol by a second alcohol). Site-directed mutagenesis was used to differentiate the residues responsible for choline- versus ethanolamine-phosphotransferase activity. Mutation of glycine 156 of hCEPT1 abolished ethanolaminephosphotransferase activity, while cholinephosphotransferase activity remained intact.

Growing community of inventors

Halifax, Canada

Christopher McMaster