Universität zu Köln

Thiele, Holger, du Moulin, Marcel, Barczyk, Katarzyna, George, Christel, Schwindt, Wolfram, Nuernberg, Gudrun, Frosch, Michael, Kurlemann, Gerhard, Roth, Johannes, Nuernberg, Peter and Rutsch, Frank (2010). Cerebral Arterial Stenoses and Stroke: Novel Features of Aicardi-Goutieres Syndrome Caused by the Arg164X Mutation in SAMHD1 Are Associated with Altered Cytokine Expression. Hum. Mutat., 31 (11). S. E1836 - 15. MALDEN: WILEY-BLACKWELL. ISSN 1059-7794

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Abstract

Aicardi-Goutieres syndrome (AGS) is a rare inborn multisystemic disease, resembling intrauterine viral infection and resulting in psychomotor retardation, spasticity and chilblain-like skin lesions. Diagnostic criteria include intracerebral calcifications and elevated interferon-alpha and pterin levels in cerebrospinal fluid (CSF). We report on four adult siblings with unknown neurodegenerative disease presenting with cerebrovascular stenoses, stroke and glaucoma in childhood, two of whom died at the age of 40 and 29 years. Genome-wide homozygosity mapping identified 170 candidate genes embedded in a common haplotype of 8Mb on chromosome 20q11-13. Next generation sequencing of the entire region identified the c. 490C>T (p.Arg164X) mutation in SAMHD1, a gene most recently described in AGS, on both alleles in all affected siblings. Clinical diagnosis of AGS was then confirmed by demonstrating intracerebral calcifications on cranial computed tomography in all siblings and elevated pterin levels in CSF in three of them. In patient fibroblasts, lack of SAMHD1 protein expression was associated with increased basal expression of IL8, while stimulated expression of IFNB1 was reduced. We conclude that cerebrovascular stenoses and stroke associated with the Arg164X mutation in SAMHD1 extend the phenotypic spectrum of AGS. The observed vascular changes most likely reflect a vasculitis caused by dysregulated inflammatory stress response. (C) 2010 Wiley-Liss, Inc.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Thiele, Holger UNSPECIFIED UNSPECIFIED UNSPECIFIED du Moulin, Marcel UNSPECIFIED UNSPECIFIED UNSPECIFIED Barczyk, Katarzyna UNSPECIFIED UNSPECIFIED UNSPECIFIED George, Christel UNSPECIFIED UNSPECIFIED UNSPECIFIED Schwindt, Wolfram UNSPECIFIED UNSPECIFIED UNSPECIFIED Nuernberg, Gudrun UNSPECIFIED UNSPECIFIED UNSPECIFIED Frosch, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Kurlemann, Gerhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Roth, Johannes UNSPECIFIED UNSPECIFIED UNSPECIFIED Nuernberg, Peter UNSPECIFIED UNSPECIFIED UNSPECIFIED Rutsch, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-493381
DOI:	10.1002/humu.21357
Journal or Publication Title:	Hum. Mutat.
Volume:	31
Number:	11
Page Range:	S. E1836 - 15
Date:	2010
Publisher:	WILEY-BLACKWELL
Place of Publication:	MALDEN
ISSN:	1059-7794
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PROGRESSIVE FAMILIAL ENCEPHALOPATHY; CEREBROSPINAL-FLUID LYMPHOCYTOSIS; GAMMA-INDUCED PROTEIN; EXONUCLEASE TREX1; INTERFERON-ALPHA; LINKAGE ANALYSIS; VIRUS-INFECTION; BASAL GANGLIA; HUMAN-DISEASE; AUTOIMMUNITY Multiple languages Genetics & Heredity Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/49338