急性白血病p16基因微卫星不稳定性及杂和性缺失的研究  

Study of microsatellite instability and loss of heterozygosity linked to p16 gene in acute leukemia

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作  者:赵新东[1] 焦飞[2] 吴春梅[3] 谭齐贤[3] 卢伟[3] 

机构地区:[1]青岛大学医学院附属医院,山东青岛266003 [2]滨州医学院 [3]青岛大学医学院

出  处:《山东医药》2007年第25期1-3,共3页Shandong Medical Journal

基  金:山东省卫生厅资助课题(2001CA1CBA2)。

摘  要:目的分析急性白血病(AL)患者p16基因连锁的微卫星不稳定性(MSI)和杂和性缺失(LOH),了解p16基因改变与AL发生的关系。方法采用多重PCR方法检测53例AL患者骨髓及口腔黏膜细胞标本的p16基因连锁的3个微卫星位点(D9Sl62、D9S1748、D9S171),观察其MSI及LOH情况。结果53例AL患者中,MSI检出率为43.4%(23/53);位于9p21的p16基因连锁的微卫星D9Sl62、D9S1748、D9S171的LOH发生率分别为0(0/53)、5.7%(3/53)和9.4%(5/53),MSI发生率分别为13.2%(7/53)、7.6%(4/53)和7.6%(4/53)。结论AL患者p16基因连锁微卫星均可检测到高频率的MSI和LOH,说明p16基因突变与AL发生、发展有关。[ Objective] To analyze p16 gene linked microsatellite instability(MST) and loss of heterozygosity(LOH) of acute leukemia(AL) and the relation between p16 gene change and AL. [ Methods] 3 microsatellite sites (D9S162, D9S1748 ,D9S171 )linked to p16 gene were detected by multiplex-PCR in mouth cavity mucosa and bone marrow samples from 53 leukemia patients. MSI and LOH were obversed. [ Results ] The rate of MSI in 53 AL patients was 43.4% (23/ 53 ). In pl6-1inked microsatellite D9SI62 ,D9SI748 and D9SI71 on 9p21 ,frequencies of LOH was 0(0/53) ,5.7 % (3/53) and 9.4% (5/53) respectively, frequencies of MSI were 13.2% (7/53) ,7.6% (4/53) and 7.6% (4/53) respectively. [ Conclusion] High frequency of MSI and LOH can be found in p16 gene-linked microsatellites in AL, it hints that p16 gene mutation has relation with genesis and development of AL.

关 键 词:白血病 急性 基因 P16 微卫星不稳定性 杂合性丢失 

分 类 号:R733.71[医药卫生—肿瘤]

 

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