Expression and clinical significance of histone lysine demethylase 5A in ovarian cancer

Fang REN; Caiyu LI; Yuanwei MA; Pin HAN; Siyuan YANG; Feiyue ZHANG; Jing WEN

doi:10.16016/j.1000-5404.202006058

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Expression and clinical significance of histone lysine demethylase 5A in ovarian cancer

Clinical Medicine | 更新时间：2026-01-09

- Expression and clinical significance of histone lysine demethylase 5A in ovarian cancer
- Journal of Third Military Medical University Vol. 42, Issue 21, Pages: 2116-2121(2020)
- 作者机构：
  
  1.450052 郑州，郑州大学第一附属医院妇科
  2.472000 河南三门峡，黄河三门峡医院妇科
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation for Distinguished Young Scholars of China(81903114);the Tackling Project of Medical Science and Technology Research of Henan Province(201702057)
- DOI：10.16016/j.1000-5404.202006058
  CLC： R345;R730.23;R737.31
- Received：07 June 2020，
  
  Revised：2020-08-14，
  
  Published：15 November 2020
- 稿件说明：
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Fang REN, Caiyu LI, Yuanwei MA, et al. Expression and clinical significance of histone lysine demethylase 5A in ovarian cancer[J]. Journal of Third Military Medical University, 2020, 42(21): 2116-2121.
DOI：

Fang REN, Caiyu LI, Yuanwei MA, et al. Expression and clinical significance of histone lysine demethylase 5A in ovarian cancer[J]. Journal of Third Military Medical University, 2020, 42(21): 2116-2121. DOI： 10.16016/j.1000-5404.202006058.

摘要

目的

研究卵巢癌(ovarian cancer

OC)中组蛋白赖氨酸去甲基化酶(histone lysine demethylase

KDMs)的表达水平及其与生存预后和临床病理特征间的关系。

方法

分别应用配对

检验和Kaplan-Meier法研究公共数据库GEO和TCGA中KDM5A在不同卵巢组织中的表达差异及其与OC生存预后的关系；实时荧光定量PCR技术和组织芯片技术用于测定临床标本中KDM5A的表达情况，绘制临床标本中KDM5A mRNA表达热图和KDM5A蛋白分布图；Kaplan-Meier法绘制68例卵巢癌患者生存曲线；分析KDM5A与预后及病理参数间的关系使用卡方检验和Cox回归模型。

结果

对公共数据库资料和临床病例分析得到，无论在基因水平还是蛋白质水平，KDM5A在卵巢癌组织中的水平都高于正常卵巢组织，并且在卵巢癌患者中，KDM5A高表达者的生存预后都劣于低表达者，分析临床卵巢癌患者的病理信息发现，KDM5A高表达与更晚的FIGO分期(

=0.012)和淋巴结转移(

=0.005)具有相关性。

结论

KDM5A高表达促进卵巢癌的发生、侵袭和转移，并且可用于预测卵巢癌患者的生存预后。

Abstract

Objective

To study the expression level of histone lysine demethylase 5A (KDM5A) in ovarian cancer (OC) and its association with prognosis and clinicopathological features.

Methods

Paired

-test and Kaplan-Meier analysis were employed to analyze the variation of KDM5A expression level in OC tissue and normal ovarian tissues and its level with survival rate in OC patients

based on the data from GEO and TCGA public databases. The expression of KDM5A in clinically collected OC tissues (51 samples by radical resection and 17 formalin-fixed samples) and normal ovarian tissues (40 samples by surgeries due to benign uterine diseases) was also examined by real-time quantitative PCR (RT-qPCR) and tissue microarray (TMA). The results were used to draw the expression heat map and protein distribution profile of KDM5A in normal and cancerous tissues. Kaplan-Meier analysis was used to plot the survival curve of the 68 OC patients.

Chi

-square test and Cox regression model were adopted to analyze the correlation between KDM5A level and prognosis as well as pathological parameters.

Results

According to the data from the public databases and clinical analyses

the expression of KDM5A at both mRNA and protein levels wa

s significantly higher in the OC tissues than normal ovarian tissues (

0.05)

and the OC patients with high KDM5A expression had poorer prognosis than those with low expression. Analysis of clinical pathological data showed that high expression level of KDM5A was associated with advanced stage by International Federation of Gynecology and Obstetrics (FIGO) staging (

=0.012) and lymph node metastasis (

=0.005).

Conclusion

The high expression of KDM5A contributes to the occurrence

invasion and metastasis of OC

and can be used to predict the prognosis of the patients.

关键词

Keywords

references

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