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多重连接依赖性探针扩增技术在X连锁Alport综合征基因诊断中的应用 被引量:3

Application of multiplex ligation-dependent probe amplification in gene diagnosis of X-linked Alportsyndrome
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摘要 目的应用多重连接依赖性探针扩增(MLPA)技术检测COL4A5基因,为x连锁Alport综合征基因诊断探索新的方法。方法对在北京大学第一医院临床诊断的,并且行COL4A5基因检测存在大片段缺失突变的3例X连锁Alport综合征患者,采用反转录(RT)-PCR、PCR和MLPA三种方法检测分析COIAA5基因突变。结果患儿l发现COIAA5基因连续缺失第22、23、24外显子;患儿2发现COIAA5基因缺失第30外显子;患儿3发现缺失COIAA5基因第1、2外显子和COIAA6基因第1、2外显子。这3个大片段缺失突变均为国内外首次报道新的突变。RT-PCR、PCR和MLPA方法结果一致,相互验证补充。结论MLPA可以用于检测COIAA5基因大片段缺失突变,为X连锁Alport综合征基因诊断提供了一种新的方法。 Objective To explore the application of multiplex ligationdependent probe amplification (MLPA) in the gene diagnosis of X-linked Alport syndrome (XLAS). Methods MLPA was used to detect and confirm large deletion mutations in COIAA5 gene in 3 XLAS patients with deletion mutation from cDNA. Results Patient 1 had a deletion from exons 22 to 24 in COIAA5 gene, patient 2 a deletion of exon 30 in COL4A5 gene and patient 3 a deletion of exons 1 and 2 in COLAA5 gene and exons 1 and 2 in COIAA6 gene. All these mutations were detected by reverse transcription-polymerase chain reaction (RT-PCR) and MLPA coincidently. Conclusion As a new method for gene diagnosis of XLAS, MLPA can be used to detect large deletion mutations in COL4A5 gene.
出处 《中华医学杂志》 CAS CSCD 北大核心 2012年第40期2825-2829,共5页 National Medical Journal of China
基金 国家“十一五”科技支撑计划项目(2006BA105A07) 国家“十二五”科技支撑计划项目(2012BA103802) 国家自然科学基金(81070545) 北京市自然科学基金(7102148)
关键词 肾炎 遗传性 突变 C01AA5基因 多重连接依赖性探针扩增 Nephritis, hereditary Mutation COIAA5 gene Multiplex ligation-dependent probe amplification
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