Development of Erf-mediated craniosynostosis and pharmacological amelioration

ETS2 repressor factor (<i>ERF</i>) insufficiency causes craniosynostosis (CRS4) in humans and mice. ERF is an ETS domain transcriptional repressor regulated by Erk1/2 phosphorylation via nucleo-cytoplasmic shuttling. Here, we analyze the onset and development of the craniosynostosis phen...

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Main Authors: Vogiatzi, A, Keklikoglou, K, Makris, K, Richardson, MSW, Fenwick, AL, Robertson, J, Twigg, SRF, Wilkie, AOM
Format: Journal article
Language:English
Published: MDPI 2023
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author Vogiatzi, A
Keklikoglou, K
Makris, K
Richardson, MSW
Fenwick, AL
Robertson, J
Twigg, SRF
Wilkie, AOM
author_facet Vogiatzi, A
Keklikoglou, K
Makris, K
Richardson, MSW
Fenwick, AL
Robertson, J
Twigg, SRF
Wilkie, AOM
author_sort Vogiatzi, A
collection OXFORD
description ETS2 repressor factor (<i>ERF</i>) insufficiency causes craniosynostosis (CRS4) in humans and mice. ERF is an ETS domain transcriptional repressor regulated by Erk1/2 phosphorylation via nucleo-cytoplasmic shuttling. Here, we analyze the onset and development of the craniosynostosis phenotype in an Erf-insufficient mouse model and evaluate the potential of the residual Erf activity augmented by pharmacological compounds to ameliorate the disease. Erf insufficiency appears to cause an initially compromised frontal bone formation and subsequent multisuture synostosis, reflecting distinct roles of Erf on the cells that give rise to skull and facial bones. We treated animals with Mek1/2 and nuclear export inhibitors, U0126 and KPT-330, respectively, to increase Erf activity by two independent pathways. We implemented both a low dosage locally over the calvaria and a systemic drug administration scheme to evaluate the possible indirect effects from other systems and minimize toxicity. The treatment of mice with either the inhibitors or the administration scheme alleviated the synostosis phenotype with minimal adverse effects. Our data suggest that the ERF level is an important regulator of cranial bone development and that pharmacological modulation of its activity may represent a valid intervention approach both in CRS4 and in other syndromic forms of craniosynostosis mediated by the FGFR-RAS-ERK-ERF pathway.
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spelling oxford-uuid:f28a1a2b-2091-4c0f-90c6-993743b0b37d2023-08-01T18:01:03ZDevelopment of Erf-mediated craniosynostosis and pharmacological ameliorationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f28a1a2b-2091-4c0f-90c6-993743b0b37dEnglishSymplectic ElementsMDPI2023Vogiatzi, AKeklikoglou, KMakris, KRichardson, MSWFenwick, ALRobertson, JTwigg, SRFWilkie, AOMETS2 repressor factor (<i>ERF</i>) insufficiency causes craniosynostosis (CRS4) in humans and mice. ERF is an ETS domain transcriptional repressor regulated by Erk1/2 phosphorylation via nucleo-cytoplasmic shuttling. Here, we analyze the onset and development of the craniosynostosis phenotype in an Erf-insufficient mouse model and evaluate the potential of the residual Erf activity augmented by pharmacological compounds to ameliorate the disease. Erf insufficiency appears to cause an initially compromised frontal bone formation and subsequent multisuture synostosis, reflecting distinct roles of Erf on the cells that give rise to skull and facial bones. We treated animals with Mek1/2 and nuclear export inhibitors, U0126 and KPT-330, respectively, to increase Erf activity by two independent pathways. We implemented both a low dosage locally over the calvaria and a systemic drug administration scheme to evaluate the possible indirect effects from other systems and minimize toxicity. The treatment of mice with either the inhibitors or the administration scheme alleviated the synostosis phenotype with minimal adverse effects. Our data suggest that the ERF level is an important regulator of cranial bone development and that pharmacological modulation of its activity may represent a valid intervention approach both in CRS4 and in other syndromic forms of craniosynostosis mediated by the FGFR-RAS-ERK-ERF pathway.
spellingShingle Vogiatzi, A
Keklikoglou, K
Makris, K
Richardson, MSW
Fenwick, AL
Robertson, J
Twigg, SRF
Wilkie, AOM
Development of Erf-mediated craniosynostosis and pharmacological amelioration
title Development of Erf-mediated craniosynostosis and pharmacological amelioration
title_full Development of Erf-mediated craniosynostosis and pharmacological amelioration
title_fullStr Development of Erf-mediated craniosynostosis and pharmacological amelioration
title_full_unstemmed Development of Erf-mediated craniosynostosis and pharmacological amelioration
title_short Development of Erf-mediated craniosynostosis and pharmacological amelioration
title_sort development of erf mediated craniosynostosis and pharmacological amelioration
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