Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells

<p style="text-align:justify;"> Fibrodysplasia ossificans progressiva (FOP) is an extremely rare congenital form of heterotopic ossification (HO), caused by heterozygous mutations in the Activin A type I receptor (ACVR1), that encodes the bone morphogenetic protein (BMP) type I rece...

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Main Authors: Sánchez‐Duffhues, G, Williams, E, Benderitter, P, Kerr, G, Bullock, A
Format: Journal article
Published: Wiley 2019
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author Sánchez‐Duffhues, G
Williams, E
Benderitter, P
Kerr, G
Bullock, A
author_facet Sánchez‐Duffhues, G
Williams, E
Benderitter, P
Kerr, G
Bullock, A
author_sort Sánchez‐Duffhues, G
collection OXFORD
description <p style="text-align:justify;"> Fibrodysplasia ossificans progressiva (FOP) is an extremely rare congenital form of heterotopic ossification (HO), caused by heterozygous mutations in the Activin A type I receptor (ACVR1), that encodes the bone morphogenetic protein (BMP) type I receptor ALK2. These mutations enable ALK2 to induce downstream signaling in response to Activins, thereby turning them into bone inducing agents. To date there is no cure for FOP. The further development of FOP patient‐derived models may contribute to discover novel biomarkers and therapeutic approaches. Nevertheless, this has traditionally been a challenge, as biopsy sampling often triggers HO.<br/> We have characterized peripheral blood‐derived endothelial colony forming cells (ECFCs) from three independent FOP donors as a new model for FOP. FOP ECFCs are prone to undergo Endothelial‐to‐mesenchymal transition and exhibit increased ALK2 downstream signaling and subsequent osteogenic differentiation upon stimulation with Activin A. Moreover, we have identified a new class of small molecule macrocycles with potential activity against ALK2 kinase. Finally, using FOP ECFCs, we have selected OD36 and OD52 as potent inhibitors with excellent kinase selectivity profiles that potently antagonize mutant ALK2 signaling and osteogenic differentiation. We expect that these results will contribute to the development of novel ALK2 clinical candidates for the treatment of FOP. </p>
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spelling oxford-uuid:3f89f36a-ce63-4508-940b-02ce522b02642022-03-26T14:32:40ZDevelopment of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:3f89f36a-ce63-4508-940b-02ce522b0264Symplectic Elements at OxfordWiley2019Sánchez‐Duffhues, GWilliams, EBenderitter, PKerr, GBullock, A <p style="text-align:justify;"> Fibrodysplasia ossificans progressiva (FOP) is an extremely rare congenital form of heterotopic ossification (HO), caused by heterozygous mutations in the Activin A type I receptor (ACVR1), that encodes the bone morphogenetic protein (BMP) type I receptor ALK2. These mutations enable ALK2 to induce downstream signaling in response to Activins, thereby turning them into bone inducing agents. To date there is no cure for FOP. The further development of FOP patient‐derived models may contribute to discover novel biomarkers and therapeutic approaches. Nevertheless, this has traditionally been a challenge, as biopsy sampling often triggers HO.<br/> We have characterized peripheral blood‐derived endothelial colony forming cells (ECFCs) from three independent FOP donors as a new model for FOP. FOP ECFCs are prone to undergo Endothelial‐to‐mesenchymal transition and exhibit increased ALK2 downstream signaling and subsequent osteogenic differentiation upon stimulation with Activin A. Moreover, we have identified a new class of small molecule macrocycles with potential activity against ALK2 kinase. Finally, using FOP ECFCs, we have selected OD36 and OD52 as potent inhibitors with excellent kinase selectivity profiles that potently antagonize mutant ALK2 signaling and osteogenic differentiation. We expect that these results will contribute to the development of novel ALK2 clinical candidates for the treatment of FOP. </p>
spellingShingle Sánchez‐Duffhues, G
Williams, E
Benderitter, P
Kerr, G
Bullock, A
Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title_full Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title_fullStr Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title_full_unstemmed Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title_short Development of macrocycle kinase inhibitors for ALK2 using Fibrodysplasia ossificans progressiva‐derived endothelial cells
title_sort development of macrocycle kinase inhibitors for alk2 using fibrodysplasia ossificans progressiva derived endothelial cells
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