ALK基因在乳腺浸润性导管癌中的表达及其临床意义  

Anaplastic Lymphoma Kinase gene Expression and Its Clinical Significance in Breast Invasive Ductal Carcinoma

作　　者：贾守薇[1,3,4] 邵琼[2,3,4] 刘海 邵建永[2,3,4] 黄红兵[1,3,4] JIA Shouwei;SHAO Qiong;LIU Hai;SHAO Jianyong;HUANG Honghbing(Departmenl of Pharmacy,Sun Yat-sen University Cancer Center,Guangzhou,Guangdong 510060,China;Department of Molecular Diagnostics,Sun Yat-sen University Cancer Center,Guangzhou,Guangdong 510060,China;Staie Key Laboratory of Oncology in South China,Sun Yat-sen University Cancer Center,Guangzhou,Guangdong 510060,China;Collaborative Innovation Centerfor Cancer Medicine,Sun Yat-sen University Cancer Center,Guangzhou,Guangdong 510060,China)

机构地区：[1]中山大学肿瘤防治中心药学部,广东广州510060 [2]中山大学肿瘤防治中心华南肿瘤学国家重点实验室,广东广州510060 [3]中山大学肿瘤防治中心肿瘤医学协同创新中心,广东广州510060 [4]中山大学肿瘤防治中心分子诊断科,广东广州510060

出　　处：《今日药学》2021年第2期105-109,共5页Pharmacy Today

基　　金：广东省医院药学研究基金(2015A39)。

摘　　要：目的在乳腺浸润性导管癌患者肿瘤组织样本中检测ALK基因的表达状态并研究其临床意义。方法利用荧光原位杂交法(FISH)检测ALK在乳腺浸润性导管患者肿瘤组织样本中的表达,并分析其表达水平与临床特征及乳腺浸润性导管癌患者预后的相关性。结果FISH结果显示,在所检测肿瘤组织样本中无ALK基因重排阳性病例,但有13例样本存在ALK基因拷贝数增加的现象。此外,ALK基因拷贝数增加与患者年龄(P=0.022)相关,尤其与早期患者预后差(P=0.032)相关。单变量和多变量Cox回归分析表明,ALK基因拷贝数增加是乳腺浸润性导管癌患者的独立预后预测指标(P=0.008)。结论在乳腺浸润性导管癌患者肿瘤样本中ALK基因重排阳性病例少见。但存在ALK基因拷贝数增加的现象,且可能是影响乳腺浸润性导管癌患者预后的不良因素。OBJECTIVE To examine the status and clinical significance of ALK gene alterations in tumor tissues of breast invasive ductal carcinoma(BIDC)patients.METHODS We detected ALK gene expression in BIDC tissues by fluorescent in situ hybridization(FISH),and assessed the correlation of ALK gene expression with clinicopathologic characteristics and the prognosis in BIDC.RESULTS ALK gene rearrangement positive case was not observed in any BIDC cases in the present study by FISH.ALK gene copy number gain(ALK/CNG)was detected for 13 of BIDC patients.In addition,ALK/CNG-positive in BIDC patients was positively correlated with age(P=0.022),especially for patients with early stageⅠ/Ⅱ(log-rank,P=0.032).Univariate and multivariate Cox proportional hazards regression analysis suggested that ALK/CNG prevalence was an independent prognostic indicator for patients with BIDC(P=0.008).CONCLUSION In tumor tissues of BIDC,ALK gene rearrangement positive case is rare,ALK/CNG in BIDC and may be an unfavorable prognostic predictor.

关 键 词：间变性淋巴瘤激酶(ALK) 乳腺浸润性导管癌 荧光原位杂交法 

分 类 号：R966[医药卫生—药理学]