Rare splicing defects of FAS underly severe recessive autoimmune lymphoproliferative syndrome

Copyright © 2017 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 183(2017) vom: 01. Okt., Seite 17-23
1. Verfasser: Agrebi, N (VerfasserIn)
Weitere Verfasser: Ben-Mustapha, I, Matoussi, N, Dhouib, N, Ben-Ali, M, Mekki, N, Ben-Ahmed, M, Larguèche, B, Ben Becher, S, Béjaoui, M, Barbouche, M R
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Alps Autosomal recessive Consanguinity FAS Splicing FAS protein, human FASLG protein, human Fas Ligand Protein mehr... IL10 protein, human fas Receptor Interleukin-10 130068-27-8
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520 |a Autoimmune lymphoproliferative syndrome (ALPS) is a prototypic disorder of impaired apoptosis characterized by autoimmune features and lymphoproliferation. Heterozygous germline or somatic FAS mutations associated with preserved protein expression have been described. Very rare cases of homozygous germline FAS mutations causing severe autosomal recessive form of ALPS with a complete defect of Fas expression have been reported. We report two unrelated patients from highly inbred North African population showing a severe ALPS phenotype and an undetectable Fas surface expression. Two novel homozygous mutations have been identified underlying rare splicing defects mechanisms. The first mutation breaks a branch point sequence and the second alters a regulatory exonic splicing site. These splicing defects induce the skipping of exon 6 encoding the transmembrane domain of CD95. Our findings highlight the requirement of tight regulation of FAS exon 6 splicing for balanced alternative splicing and illustrate the importance of such studies in highly consanguineous populations 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Alps 
650 4 |a Autosomal recessive 
650 4 |a Consanguinity 
650 4 |a FAS 
650 4 |a Splicing 
650 7 |a FAS protein, human  |2 NLM 
650 7 |a FASLG protein, human  |2 NLM 
650 7 |a Fas Ligand Protein  |2 NLM 
650 7 |a IL10 protein, human  |2 NLM 
650 7 |a fas Receptor  |2 NLM 
650 7 |a Interleukin-10  |2 NLM 
650 7 |a 130068-27-8  |2 NLM 
700 1 |a Ben-Mustapha, I  |e verfasserin  |4 aut 
700 1 |a Matoussi, N  |e verfasserin  |4 aut 
700 1 |a Dhouib, N  |e verfasserin  |4 aut 
700 1 |a Ben-Ali, M  |e verfasserin  |4 aut 
700 1 |a Mekki, N  |e verfasserin  |4 aut 
700 1 |a Ben-Ahmed, M  |e verfasserin  |4 aut 
700 1 |a Larguèche, B  |e verfasserin  |4 aut 
700 1 |a Ben Becher, S  |e verfasserin  |4 aut 
700 1 |a Béjaoui, M  |e verfasserin  |4 aut 
700 1 |a Barbouche, M R  |e verfasserin  |4 aut 
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