头颈部鳞癌抑癌基因nm23-H_1的表达、DNA倍体与淋巴结转移的关系

The relation among nm23-H_1 gene expression,DNA contents and lymph node metastases of head and neck squamous cell carcinoma

目的 :研究头颈部鳞状细胞癌 (HNSCC)nm2 3 H1基因的表达、DNA含量与淋巴结转移的关系。方法 :选择 3 0例未经治疗的HNSCC患者术后新鲜肿瘤标本 ,应用免疫组化ABC技术和流式细胞术 (FCM )检测瘤细胞nm 2 3 -H1基因表达、异倍体 (aneuploid)和S期细胞比例 (S phasefraction ,SPF) ,探索这 3个参数与淋巴结转移之间的关系。结果 :nm 2 3 H1的阳性率为 60 % ,异倍体检出率为 66.7%。nm 2 3 H1表达、DNA倍体和SPF与淋巴结转移有关 (均为P <0 .0 1)。nm 2 3 H1表达与DNA倍体无关 (P >0 .0 5 ) ,nm 2 3 H1表达与SPF有关 (P <0 .0 5 )。结论 :对nm2 3 H1表达、DNA倍体和SPF的检测可预测HNSCC淋巴结转移趋势和预后 。

Objective:To study the relation among nm23-H 1 expression,DNA contents and lymph node metastases of head and neck squamous cell carcinoma(HNSCC).Methods:Fresh specimens from 30 previously untreated patients with HNSCC were examined for the determination of nm23-H 1 expression with immunohistochemistry, Aneuploid and S-phase fraction(SPF) with flow cytometry(FCM).The association among these parameters with lymph node metastases was studied.Results: nm23-H 1 expression was found in 18 cases (60%).and aneuploid in 20 (66.7%).Correlation was found between lymph node metastasis and nm23-H 1 protein expression (P<0.05),or Aneuploid (P<0.01) or SPF(P<0.01).nm23-H 1 expression was not correlated with Aneuploid.but was with SPF (P<0.05).Conclusion:nm23-H 1 protein,Aneuploid and SPF may be valuable biological indicators for predicting lymph node metastasis and prognosis of HNSCC.