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Association Between the Single Nucleotide Polymorphism and the Level of Aquaporin-4 Protein Expression in Han and Minority Chinese with Inflammatory Demyelinating Diseases of the Central Nervous System.

Identifieur interne : 002335 ( Main/Exploration ); précédent : 002334; suivant : 002336

Association Between the Single Nucleotide Polymorphism and the Level of Aquaporin-4 Protein Expression in Han and Minority Chinese with Inflammatory Demyelinating Diseases of the Central Nervous System.

Auteurs : Lan Chu [République populaire de Chine] ; Qingqing Dai [République populaire de Chine] ; Zhu Xu [République populaire de Chine] ; Dian He [République populaire de Chine] ; Hao Wang [République populaire de Chine] ; Qingsong Wang [République populaire de Chine] ; Yifan Zhang [République populaire de Chine] ; Yingwu Zhu [République populaire de Chine] ; Yuan Li [République populaire de Chine] ; Gang Cai [République populaire de Chine] ; Krantic Slavica [France] ; Kermode Allan [Australie]

Source :

RBID : pubmed:25895050

Abstract

The purpose of this study was to determine whether or not aquaporin-4 (AQP4) gene mutations are related to the pathogenesis of inflammatory demyelinating diseases in the central nervous system. Polymorphisms of AQP4 exons 1-5 were determined by sequencing DNA from 67 patients with central nervous system inflammatory demyelinating diseases, including neuromyelitis optica (NMO), multiple sclerosis, recurrent or simultaneous bilateral optic neuritis, and longitudinally extensive transverse myelitis. A plasmid with the identified new missense mutation was constructed, and human embryonic kidney cells (HEK293A) were transfected with either the pEGFP-N1-AQP4-M23 vector (bearing the identified mutated cDNA sequence) or with the plasmid bearing the wild-type AQP4 gene sequence. AQP4 protein expression was analyzed in both experimental groups using Western Blot analysis following protein extraction from transfected cells. A synonymous mutation (rs1839318) was detected on exon 3, and an additional synonymous mutation was detected on the exon 2-2 (rs72557968). Most importantly, a new missense mutation was detected on exon 2-1. According to Western blot analysis, the mutated cDNA sequence yielded increased AQP4 protein expression in comparison with the wild-type cDNA sequence (P < 0.05). AQP4 gene mutations are uncommon, occurring in only 3 out of 67 patients. Although it is possible that the mutations contributed to an increased risk of inflammatory central nervous system disease in these individuals, it is unlikely that mutations are a significant contributor to most patients with NMO spectrum disorders in China.

DOI: 10.1007/s12035-015-9171-9
PubMed: 25895050


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">The purpose of this study was to determine whether or not aquaporin-4 (AQP4) gene mutations are related to the pathogenesis of inflammatory demyelinating diseases in the central nervous system. Polymorphisms of AQP4 exons 1-5 were determined by sequencing DNA from 67 patients with central nervous system inflammatory demyelinating diseases, including neuromyelitis optica (NMO), multiple sclerosis, recurrent or simultaneous bilateral optic neuritis, and longitudinally extensive transverse myelitis. A plasmid with the identified new missense mutation was constructed, and human embryonic kidney cells (HEK293A) were transfected with either the pEGFP-N1-AQP4-M23 vector (bearing the identified mutated cDNA sequence) or with the plasmid bearing the wild-type AQP4 gene sequence. AQP4 protein expression was analyzed in both experimental groups using Western Blot analysis following protein extraction from transfected cells. A synonymous mutation (rs1839318) was detected on exon 3, and an additional synonymous mutation was detected on the exon 2-2 (rs72557968). Most importantly, a new missense mutation was detected on exon 2-1. According to Western blot analysis, the mutated cDNA sequence yielded increased AQP4 protein expression in comparison with the wild-type cDNA sequence (P < 0.05). AQP4 gene mutations are uncommon, occurring in only 3 out of 67 patients. Although it is possible that the mutations contributed to an increased risk of inflammatory central nervous system disease in these individuals, it is unlikely that mutations are a significant contributor to most patients with NMO spectrum disorders in China.</div>
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</region>
</country>
<country name="Australie">
<noRegion>
<name sortKey="Allan, Kermode" sort="Allan, Kermode" uniqKey="Allan K" first="Kermode" last="Allan">Kermode Allan</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 002335 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 002335 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Asie
   |area=    AustralieFrV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     pubmed:25895050
   |texte=   Association Between the Single Nucleotide Polymorphism and the Level of Aquaporin-4 Protein Expression in Han and Minority Chinese with Inflammatory Demyelinating Diseases of the Central Nervous System.
}}

Pour générer des pages wiki

HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i   -Sk "pubmed:25895050" \
       | HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd   \
       | NlmPubMed2Wicri -a AustralieFrV1 

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Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024