Stables, Jennifer; Green, Emma K; Sehgal, Anuj; Patkar, Omkar L; Keshvari, Sahar; Taylor, Isis; Ashcroft, Maisie E; Grabert, Kathleen; Wollscheid-Lengeling, Evi; Szymkowiak, Stefan; McColl, Barry W; Adamson, Antony; Humphreys, Neil E; Mueller, Werner; Starobova, Hana; Vetter, Irina; Shabestari, Sepideh Kiani; Blurton-Jones, Matthew M; Summers, Kim M; Irvine, Katharine M; Pridans, Clare; Hume, David A A kinase-dead Csf1r mutation associated with adult-onset leukoencephalopathy has a dominant inhibitory impact on CSF1R signalling (Journal Article) In: Development, vol. 149, no. 8, 2022, ISSN: 1477-9129. @article{pmid35333324,
title = {A kinase-dead Csf1r mutation associated with adult-onset leukoencephalopathy has a dominant inhibitory impact on CSF1R signalling},
author = {Jennifer Stables and Emma K Green and Anuj Sehgal and Omkar L Patkar and Sahar Keshvari and Isis Taylor and Maisie E Ashcroft and Kathleen Grabert and Evi Wollscheid-Lengeling and Stefan Szymkowiak and Barry W McColl and Antony Adamson and Neil E Humphreys and Werner Mueller and Hana Starobova and Irina Vetter and Sepideh Kiani Shabestari and Matthew M Blurton-Jones and Kim M Summers and Katharine M Irvine and Clare Pridans and David A Hume},
doi = {10.1242/dev.200237},
issn = {1477-9129},
year = {2022},
date = {2022-04-01},
journal = {Development},
volume = {149},
number = {8},
abstract = {Amino acid substitutions in the kinase domain of the human CSF1R gene are associated with autosomal dominant adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP). To model the human disease, we created a disease-associated mutation (pGlu631Lys; E631K) in the mouse Csf1r locus. Homozygous mutation (Csf1rE631K/E631K) phenocopied the Csf1r knockout, with prenatal mortality or severe postnatal growth retardation and hydrocephalus. Heterozygous mutation delayed the postnatal expansion of tissue macrophage populations in most organs. Bone marrow cells from Csf1rE631K/+mice were resistant to CSF1 stimulation in vitro, and Csf1rE631K/+ mice were unresponsive to administration of a CSF1-Fc fusion protein, which expanded tissue macrophage populations in controls. In the brain, microglial cell numbers and dendritic arborisation were reduced in Csf1rE631K/+ mice, as in patients with ALSP. The microglial phenotype is the opposite of microgliosis observed in Csf1r+/- mice. However, we found no evidence of brain pathology or impacts on motor function in aged Csf1rE631K/+ mice. We conclude that heterozygous disease-associated CSF1R mutations compromise CSF1R signalling. We speculate that leukoencephalopathy associated with dominant human CSF1R mutations requires an environmental trigger and/or epistatic interaction with common neurodegenerative disease-associated alleles.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Amino acid substitutions in the kinase domain of the human CSF1R gene are associated with autosomal dominant adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP). To model the human disease, we created a disease-associated mutation (pGlu631Lys; E631K) in the mouse Csf1r locus. Homozygous mutation (Csf1rE631K/E631K) phenocopied the Csf1r knockout, with prenatal mortality or severe postnatal growth retardation and hydrocephalus. Heterozygous mutation delayed the postnatal expansion of tissue macrophage populations in most organs. Bone marrow cells from Csf1rE631K/+mice were resistant to CSF1 stimulation in vitro, and Csf1rE631K/+ mice were unresponsive to administration of a CSF1-Fc fusion protein, which expanded tissue macrophage populations in controls. In the brain, microglial cell numbers and dendritic arborisation were reduced in Csf1rE631K/+ mice, as in patients with ALSP. The microglial phenotype is the opposite of microgliosis observed in Csf1r+/- mice. However, we found no evidence of brain pathology or impacts on motor function in aged Csf1rE631K/+ mice. We conclude that heterozygous disease-associated CSF1R mutations compromise CSF1R signalling. We speculate that leukoencephalopathy associated with dominant human CSF1R mutations requires an environmental trigger and/or epistatic interaction with common neurodegenerative disease-associated alleles. |
Grabert, Kathleen; Sehgal, Anuj; Irvine, Katharine M.; Wollscheid-Lengeling, Evi; Ozdemir, Derya D.; Stables, Jennifer; Luke, Garry A.; Ryan, Martin D.; Adamson, Antony; Humphreys, Neil E.; Sandrock, Cheyenne J.; Rojo, Rocio; Verkasalo, Veera A.; Mueller, Werner; Hohenstein, Peter; Pettit, Allison R.; Pridans, Clare; Hume, David A. A Transgenic Line That Reports CSF1R Protein Expression Provides a Definitive Marker for the Mouse Mononuclear Phagocyte System (Journal Article) In: The Journal of Immunology, vol. 205, no. 11, pp. 3154–3166, 2020, ISSN: 0022-1767, 1550-6606. @article{grabert_transgenic_2020,
title = {A Transgenic Line That Reports CSF1R Protein Expression Provides a Definitive Marker for the Mouse Mononuclear Phagocyte System},
author = {Kathleen Grabert and Anuj Sehgal and Katharine M. Irvine and Evi Wollscheid-Lengeling and Derya D. Ozdemir and Jennifer Stables and Garry A. Luke and Martin D. Ryan and Antony Adamson and Neil E. Humphreys and Cheyenne J. Sandrock and Rocio Rojo and Veera A. Verkasalo and Werner Mueller and Peter Hohenstein and Allison R. Pettit and Clare Pridans and David A. Hume},
url = {http://www.jimmunol.org/lookup/doi/10.4049/jimmunol.2000835},
doi = {10.4049/jimmunol.2000835},
issn = {0022-1767, 1550-6606},
year = {2020},
date = {2020-12-01},
urldate = {2021-10-21},
journal = {The Journal of Immunology},
volume = {205},
number = {11},
pages = {3154--3166},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
