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Ⅱ型子宫内膜癌患者癌组织中IMP3、PTEN表达及其临床意义

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目的 分析Ⅱ型子宫内膜癌(EC)患者癌组织中胰岛素样生长因子Ⅱ信使RNA结合蛋白3(IMP3)和磷酸酶与张力蛋白同源物(PTEN)的表达情况,并探讨其临床意义.方法 收集60例Ⅱ型EC患者手术切除的癌组织及20例对应癌旁组织的存档石蜡标本,采用免疫组织化学法(IHC)检测标本中IMP3、PTEN蛋白表达情况;分析IMP3、PTEN蛋白表达与EC患者临床病理特征及预后的关系.结果 EC患者癌组织中IMP3阳性表达率高于癌旁组织,PTEN阳性表达率低于癌旁组织,差异均有统计学意义(P<0.05).EC患者癌组织IMP3阳性表达率与肌层浸润深度、FIGO分期及淋巴结转移有关(P<0.05),即肌层浸润深度越深、FIGO分期越晚、合并淋巴结转移者IMP3阳性表达率越高.PTEN阳性表达率与FIGO分期、淋巴结转移有关(P<0.05),即FIGO分期越晚、合并淋巴结转移者PTEN阳性表达率越低.Spearman相关性分析结果显示,EC患者癌组织中IMP3和PTEN蛋白表达无显著相关性(P>0.05).IMP3阳性组整体生存情况差于IMP3阴性组,PTEN阳性组整体生存情况优于PTEN阴性组(P<0.05).结论 Ⅱ型EC患者癌组织中IMP3表达上调,而PTEN表达下调,二者表达异常可能参与了 Ⅱ型EC的发生与发展,且IMP3阳性表达、PTEN阴性表达与Ⅱ型EC患者不良预后相关.
Expressions and Clinical Significance of IMP3 and PTEN in Cancer Tissues of Patients with Type Ⅱ Endometrial Carcinoma
Objective To analyze the expressions of insulin 1ike growth factor Ⅱ mRNA binding protein 3(IMP3)and phosphatase and tensin homolog(PTEN)in cancer tissues of patients with type Ⅱ endometrial carcinoma(EC),and to explore their clinical significance.Methods The archived paraffin specimens of cancer tissues from 60 patients with type Ⅱ EC and para-carcinoma tissues from 20 patients were collected.The expressions of IMP3 and PTEN proteins were detected by immunohis-tochemistry(IHC),and their relationship with clinicopathological characteristics and prognosis of EC patients was analyzed.Re-sults The positive expression rate of IMP3 in cancer tissues was higher than that in para-carcinoma tissues,while positive ex-pression rate of PTEN was lower than that in para-carcinoma tissues(P<0.05).The positive expression rate of IMP3 was correla-ted with depth of muscular infiltration,FIGO staging and lymph node metastasis(P<0.05).The positive expression rate of IMP3 was higher in patients with deep muscular infiltration,late FIGO staging and lymph node metastasis.The positive expression rate of PTEN was correlated with FIGO staging and lymph node metastasis(P<0.05).The positive expression rate of PTEN was lower in patients with late FIGO staging and lymph node metastasis.The results of Spearman correlation analysis showed that there was no significant correlation between IMP3 and PTEN(P>0.05).The overall survival in IMP3 positive group was worse than that in IMP3 negative group,while overall survival in PTEN positive group was better than that in PTEN negative group(P<0.05).Con-clusion The expression of IMP3 is up-regulated,while expression of PTEN is down-regulated in cancer tissues of patients with type Ⅱ EC.The abnormal expressions of the 2 indexes may be involved in the occurrence and development of type Ⅱ EC.The positive expression of IMP3 and negative expression of PTEN are correlated with poor prognosis of patients with type Ⅱ EC.

Type Ⅱ endometrial carcinomaInsulin 1ike growth factor Ⅱ mRNA binding protein 3Phosphatase and tensin homologPrognosis

李颖、马媛、李凯丽

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455000 河南科技大学第四附属医院,安阳市肿瘤医院

Ⅱ型子宫内膜癌 胰岛素样生长因子Ⅱ信使RNA结合蛋白3 磷酸酶与张力蛋白同源物 预后

2024

实用癌症杂志
江西省肿瘤医院 江西省肿瘤研究所

实用癌症杂志

影响因子:1.241
ISSN:1001-5930
年,卷(期):2024.39(5)
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