Novel mutation detection of an inflammatory molecule elastase II gene encoding neutrophil elastase in Kostmann syndrome

被引:15
作者
Ahangari, G. [1 ]
Chavoshzadeh, Z. [2 ]
Lari, Z. [1 ]
Ramyar, A. [3 ]
Farhoudi, A. [2 ]
机构
[1] Natl Inst Genet Engn & Biotech, Dept Mol Med & Immunol, Tehran, Iran
[2] Univ Tehran Med Sci, Dept Clin Immunol, Ctr Pediat Hosp, Tehran, Iran
[3] Univ Tehran Med Sci, Dept Hematol & Oncol, Ctr Pediat Hosp, Tehran, Iran
关键词
elastase two; severe congenital neutropenia; polymerase chain reaction; polymorphonueclear; reverse transcription;
D O I
10.1177/1721727X0700500202
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Severe congenital neutropenia (SCN), often referred to as Kostmann syndrome, is a rare immune deficiency syndrome diagnosed at or soon after birth, characterized by maturation arrest of myeloid cells at the promyelocyte stage of hematopoiesis. In severe congenital neutropenia due to disorder of neutrophil production, patients are predisposed to recurrent bacterial infections. Recently, there have been reports of detected mutations in neutrophil elastase It (ELA2) gene in genomic DNA of severe congenital neutropenia. In this study we attempted to determine whether there is any mutation in elastase II gene encoding. Peripheral blood was collected from five patients with severe congenital neutropenia and 20 healthy individuals. Total RNA was isolated using RNA standard techniques from fresh separated cells by Polymorphoprep. RNA was analyzed by employing PCR amplification of reverse transcribed using a total of ten specific primers. We amplified five exons of ELA2 gene separately and sequenced each exon. Mutational analysis was performed by directed capillary sequencing method. We found mutations in all severe congenital neutropenia patients and no mutation in 20 healthy individuals. The most mutations were in exon 4 and no mutation was found in exons 3 and 5.
引用
收藏
页码:65 / 71
页数:7
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