摘要
目的:研究鼻咽癌中16号染色体的缺失情况。方法:采用显微切割的方法获取肿瘤组织,然后用PCR的方法以 16号染色体上的 8对引物对 38例鼻咽癌进行分析。结果: 38例鼻咽癌组织中所有标本至少有一个位点出现有杂合性缺失,其中 D165533出现杂合性缺失的频率最高,占 86.1%(31/33),此外,杂合性缺失频率超过50%的有引物 D16S398、D16S390和 D16S420,分别占 78.8%(26/33)、69.4%(25/33)和 57. 6%(19/33)。结论:本研究首次发现在 I6号染色体上存在三个杂合性缺失高频缺失区,分别位于 16p12.3(引物 D16S420)。16q12.2(引物D16S390)和 16q21-22.1(引物D16S533,D16S398)。
Objective: To analyze the loss of heterozygosity (LOH) of chromosome 16 in nasopharyngeal carcinoma (NPC). Methods: Tumor tissues were obtained with microdissetion.PCR was used to analyse 38 NPC samples using eight primers on chromosome 16. Results: All of 38 cases were showed with LOH in at least one of the loci analyzed.Among these primers, D16S533 had the highest frequency of LOH, which was 86.1 % (31/33). High frequent LOH (> 50% ) occured at three other loci including D16S398, D16S390 and D16S420, the presentages were 78.8% (26/33 ). 69.4% (25/33 ) and 57.6 (19/33 ). respectively. Conclusions: From this investigation, we found high frequent LOH occurred at chromosome 16p 12. 3, 16q12. 2 and 16q21-22.1I for the first time. These results indicate that more than one (TSGs) related to NPC may harbored at these regions.
出处
《癌症》
SCIE
CAS
CSCD
北大核心
2000年第1期1-5,共5页
Chinese Journal of Cancer
基金
1998年度国家杰出青年科学基金B类(3982511)
美国CMB基金
国家自然科学基金重大项目
广东省自然科学基金重大项目
中山医科大学"211 工程"重点学科建资助项目