FOXF1在涎腺腺样囊性癌中的表达及临床意义研究

Expression of FOXF1 in salivary adenoid cystic carcinoma and its clinical significance

目的探讨叉头蛋白1(FOXF1)在涎腺腺样囊性癌(SACC)中的表达,并分析其临床意义。方法选取行手术切除治疗、术前未行放疗或化疗且术后组织病理学检查确诊为原发性SACC的患者93例,回顾并记录患者的临床病理特征与预后情况,采用免疫组化染色法检测SACC组织FOXF1的表达,分析SACC组织FOXF1表达与患者临床病理特征、复发及无瘤生存的关系。结果 46.2%(43/93)的患者SACC组织中FOXF1表达阳性。肿瘤位于大涎腺的患者FOXF1表达阳性率明显高于位于小涎腺的患者(P<0.05)。T_(1～3)期患者FOXF1表达阳性率明显高于T_4期患者(P<0.05)。SACC组织FOXF1表达与患者是否首诊、性别、年龄、远处转移、神经侵犯、淋巴结转移和组织类型等病理特征无明显关系(均P>0.05)。年龄、FOXF1表达是SACC患者复发的独立影响因素(均P<0.05)。SACC组织FOXF1阳性表达患者5年无瘤生存率高于阴性表达患者(81.2%vs 50.9%,P<0.05)。结论FOXF1在SACC的发生、发展中起肿瘤抑制因子的作用,且可能是SACC预后较好的预测指标。

Objective To investigate the expression of forkhead box protein F1(FOXF1) in salivary adenoid cystic carcinoma(SACC) and its clinical significance. Methods Ninety three patients with primary SACC who underwent surgical resection were retrospectively enrolled, and the clinicopathological features and prognosis of patients were analyzed. The expression of FOXF1 in SACC tissues was evaluated by immunohistochemical staining. The relationship between the expression of FOXF1 in SACC tissues and clinicopathological features, influencing factors of recurrence and disease-free survival was analyzed. Results The positive expression rate of FOXF1 in SACC tissues was 46.2%(43/93), the positive expression rate in SACC patients with the large parotid gland was significantly higher than that in patients with small parotid gland(P<0.05). The positive expression rate of FOXF1 in patients with T1-T3 stage was significantly higher than that in patients with T4 stage(P<0.05). The expression of FOXF1 was not correlated with sex, age, distant metastasis, nerve invasion, lymph node metastasis and histological types(P >0.05). Age and expression of FOXF1 were independent influencing factors for recurrence in SACC patients(P<0.05). The 5-year disease-free survival rate of patients with positive FOXF1 expression was higher than that of patients with negative FOXF1 expression(81.2% vs 50.9%, P<0.05). Conclusion FOXF1 may play a role as a tumor suppressor in the occurrence and development of SACC, and may be a favorable prognostic indicator for SACC.