title: Rapid detection of epidermal growth factor receptor mutations with multiplex PCR and primer extension in lung cancer.
abstract: Epidermal growth factor receptor (EGFR) kinase domain mutations hyperactivate the kinase and confer kinase addiction of the non-small-cell lung cancer (NSCLC) tumor cells. Almost all of these mutations are located within exons 18-21. The -216 single nucleotide polymorphism in the promoter region is associated with increased EGFR production. We present a method for detecting these common mutations in 81 cases of NSCLC. The protocol is based on the multiplex amplification of promoter region and exons 18-21 of the EGFR genes in a single tube, followed by primer extension of the PCR products using various sizes of primers to detect base changes at -216 promoter region and codons 719, 746-750, 790, 858 of the EGFR gene. We compared the results with that from direct sequencing for detecting EGFR mutations in 81 cases of NSCLC. The two methods identified the same 26 mutations, but our method is superior to direct sequencing in terms of the amount of work and time required. We presented a simple and fast method to detect mutations of EGFR genes in NSCLC.
authors.affiliation: Department of Laboratory Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
authors.forename: Ching-Hsiung
authors.initials: CH
authors.lastname: Lin
authors.forename: Kun-Tu
authors.initials: KT
authors.lastname: Yeh
authors.forename: Ya-Sian
authors.initials: YS
authors.lastname: Chang
authors.forename: Nicholas C
authors.initials: NC
authors.lastname: Hsu
authors.forename: Jan-Gowth
authors.initials: JG
authors.lastname: Chang
mesh_terms: D001483:Base Sequence; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics*; D004252:DNA Mutational Analysis / Q000379:methods*; D017931:DNA Primers / Q000235:genetics; D066246:ErbB Receptors / Q000235:genetics*; D005091:Exons; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics*; D009154:Mutation; D016133:Polymerase Chain Reaction / Q000379:methods; D020641:Polymorphism, Single Nucleotide; D011401:Promoter Regions, Genetic
chemical_list: D017931:DNA Primers; D066246:ErbB Receptors
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