三阴性乳腺癌PALB2与雄激素受体表达关系及临床意义

The relationship of PALB2 and AR expression in triple negative breast cancer and its clinical significance

目的:探讨三阴性乳腺癌(TNBC)中PALB2和雄激素受体(AR)的表达关系及其临床意义。方法:SP法免疫组化测定178例TNBC中PALB2及AR的表达情况,将PALB2按表达不同分为两组,并分析其与不同AR表达状态时临床病理特征以及对预后的影响。结果:178例TNBC中,PALB2阴性47例(26.4%),AR阳性60例(33.7%),两者呈负相关(-1≤r<1,P<0.05),在PALB2阴性组中,AR阳性表达与乳腺癌家族史、淋巴结转移、临床分期及复发转移相关(P<0.05),且5年无瘤生存率也低于AR阴性组。结论:TNBC患者PALB2缺失与AR的阳性表达,对TNBC的进展起到协同促进作用,PALB2和AR联合检测可为TNBC的预后判读提供新依据。

Objective Discussion the relationship of PALB2 and AR expression in triple negative breast cancer and its clinical pathological features. Methods The SP immunohistochemical staining was adopted to detect the expression of PALB2 and AR in 178 cases of TNBC, PALB2 divided into two groups according to the expression of different, and to analyze the clinical pathological features and prognostic impact of different AR expression status. Results 178 cases of TNBC, that PALB2 missing expression 47 cases （26.4%）, AR expression of 60 eases （33.7%）, between of them were negatively correlated （-1≤ r 〈 1, P 〈 0.05）, in PALB2 negative group, AR expression associated with family history, lymph node metastasis, clinical stage and recurrence and metastasis （P 〈0.05）, and 5-year disease -free survival lower than AR negative expression, Log rank = 4.453, P = 0.035. Conclusion PALB2 negative expression while AR positive expression in TNBC have synergistic effect with disease progression, PALB2 and AR combined detection may provide a new basis for the prognosis of TNBC interpretation, and recommending take further studies to confirm.