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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 48, Number 1
JKCSEZ 48(1)
February 20, 2004 
 
Title
 Analysis of p53 Somatic Mutation in Head and Neck Cancer Using Denaturing High Performance Liquid Chromatography(DHPLC)

두경부 종양에서 DHPLC를 이용한 p53체세포 돌연변이 검출 연구
Author
 Kwang-Youl Kim, Sang-Bum Park, Sang-Man Han, Youn-Hyoung Nam, Won-Cheoul Jang*

김광열, 박상범, 한상만, 남윤형, 장원철*
Keywords
 HNSCC, p53, DHPLC, PCR-SSCP , HNSCC, p53, DHPLC, PCR-SSCP
Abstract
 두경부 편평 세포암종(HNSCC: head and neck squamous cell carcinoma) 의 발생과 관련하여 p53 종양 억제 유전자 (tumor suppressor gene) 의 돌연변이는 높은 비율로 나타나는 것으로 보고 되고 있다. 단국대학교 병원에서 두경부 종양으로 진단 받고 수술 받은 환자의 조직 50개를 대상으로 p53 종양 억제 유전자의 exon 5-8 까지의 영역에서 DNA를 추출하여 PCR-SSCP(polymerase chain reaction single strand conformational polymorphism) 방법과 DHPLC(denaturing high performance liquid chromatography) 방법으로 p53체세포 돌연변이(somatic mutation)를 비교 분석하였다. 그 결과 SSCP 분석 방법은 16개(32%), DHPLC 분석 방법은 17개(34%) 를 검출하였고 그 중 SSCP와 DHPLC 분석 방법 모두 exon 8번에서 결실(deletion) 형태의 돌연변이를 확인하였으며 최종적으로 자동 염기 서열 분석기(automatic DNA sequencer) 를 통하여 모든 돌연변이를 확인하였다. DHPLC 분석방법이 SSCP 방법보다 분석 시간이나 노력이 덜 소모되며 보다 더 정확한 돌연변이 검출 방법임을 확인하였다.

Mutation of p53 tumor suppressor gene in HNSCC (head and neck squamous cell carcinoma) has been proposed high rate. We extracted genomic DNA from 50 head and neck cancer. The DNA was amplified by PCR at exon 5-8 in p53 tumor suppressor gene. We have compared single strand conformation polymorphism (SSCP) and denaturing high performance liquid chromatography (DHPLC) method for analysis of p53 somatic mutation. As a result, 16 deleted mutations (32%) were detected by SSCP analysis and 17 deleted mutations (34%) were detected by DHPLC analysis at exon 8. All of 17 mutations were proved by sequencing. We conclude that DHPLC is a fast and simple screening method rather than SSCP analysis.

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