Expression of plasma methylated <italic style="font-style: italic">Septin</italic>9 gene and its clinical significance in patients with gastric cancer

Xinning CHEN; Huiqin JIANG; Yihui YANG; Qian YU; Chunyan ZHANG; Beili WANG; Baishen PAN; Wei GUO

doi:10.19401/j.cnki.1007-3639.2023.02.009

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Expression of plasma methylated Septin9 gene and its clinical significance in patients with gastric cancer

Article | 更新时间：2025-12-31

- Expression of plasma methylated Septin9 gene and its clinical significance in patients with gastric cancer
- China Oncology Vol. 33, Issue 2, Pages: 162-167(2023)
- 作者机构：
  
  1. 复旦大学附属中山医院检验科，上海 200032
  2. 复旦大学附属中山医院厦门医院检验科，福建厦门 361015
- 作者简介：
- 基金信息：
- DOI：10.19401/j.cnki.1007-3639.2023.02.009
  CLC： R735.2
- Received：24 June 2022，
  
  Revised：2022-10-13，
  
  Published：28 February 2023
- 稿件说明：
移动端阅览
Xinning CHEN, Huiqin JIANG, Yihui YANG, et al. Expression of plasma methylated Septin9 gene and its clinical significance in patients with gastric cancer[J]. China Oncology, 2023, 33(2): 162-167.
DOI：

Xinning CHEN, Huiqin JIANG, Yihui YANG, et al. Expression of plasma methylated Septin9 gene and its clinical significance in patients with gastric cancer[J]. China Oncology, 2023, 33(2): 162-167. DOI： 10.19401/j.cnki.1007-3639.2023.02.009.

摘要

背景与目的：

胃癌是中国常见的恶性肿瘤之一，胃癌诊疗过程中仍缺乏高特异性、高灵敏度的生物标志物。甲基化的

Septin

9基因（methylated

Septin

9 gene，m

SEPT

9）在胃癌患者癌组织中特征性增高。本文旨在探讨胃癌患者血浆m

SEPT

9的表达及临床意义。

方法：

纳入2020年4月—11月在复旦大学附属中山医院检验科检测血浆m

SEPT

9（PCR荧光探针法）的221例诊断为胃癌的患者以及34例无疾病证据受检者，并应用ΔΔCt法对m

SEPT

9水平进行相对定量。收集相关临床资料，包括临床病理学资料（患者基本信息和病理学检查结果）和血清蛋白标志物[癌胚抗原（carcinoembryonic antigen，CEA）、糖类抗原（carbohydrate antigen，CA）12-5、CA19-9和CA72-4

]

并采用配对

检验、

检验和受试者工作特征（receiver operating characteristic，ROC）曲线进行分析。

结果：

SEPT

9在胃癌未治疗人群中的阳性率为35%（28/80），曲线下面积（area under curve，AUC）为0.815 3，灵敏度为35%，特异度为100%。脉管内见癌栓、侵及浆膜层或周围组织和存在淋巴结转移的胃癌患者术前mSEPT9阳性率较高（46.87%

12.50%，45.16%

14.29%，75.00%

40.00%），差异均有统计学意义（

0.05）。治疗后疾病进展（progressive disease，PD）患者mSEPT9阳性率高于治疗后部分缓解（partial response，PR）和稳定（stable disease，SD）患者（68.75%

17.74%），差异有统计学意义（

0.05）。患者疾病进展前和疾病进展时m

SEPT

9 ΔΔCt差异均有统计学意义（

0.05）。

结论：

血浆m

SEPT9

基因检测在胃癌诊断中的灵敏度和特异性较传统血清蛋白标志物（CEA、CA12-5、CA19-9和CA72-4）更优。该标志物能提供严重程度相关信息，且在PD患者中阳性率较高。

SEPT9

状态和相对定量结果在预测术后病理学分期和治疗反应中具有潜在临床意义。

Abstract

Background and purpose:

Gastric cancer is one of the most common malignant tumors in our country. The diagnosis and treatment process of gastric cancer lacks of sensitive and specific biomarker. This study aimed to explore the expression of plasma methylated

Septin

9 gene (

mSEPT

9) and its clinical significance in patients with gastric cancer.

Methods:

From April 2020 to November 2020

221 patients with gastric cancer and 34 patients with no evidence of disease who visited Zhongshan Hospital Fudan University were enrolled. The status of m

SEPT

9 was detected by polymerase chain reaction (PCR) fluorescence probe method

and relative m

SEPT

9 value was determined by the ΔΔCt method. Detailed clinical data including pathological characteristics (patients characteristics and pathology characteristics) and serum biomarkers [carcinoembryonic antigen (CEA)

carbohydrate antigen (CA)12-5

CA19-9 and CA72-4

]

were collected and analyzed. Paired

test

test and receiver operating characteristic (ROC) curve analysis were performed for statistical analysis.

Results:

The positive rate

sensitivity and specificity of plasma m

SEPT

9 were 35%

35% and 100%

respectively in untreated patients with gastric cancer. The positive rate of m

SEPT

9 was higher in patients with blood vessel invasion

serosa invasion and lymphatic metastasis

which was 46.87%

12.50%

45.16%

14.29%

75.00%

40.00%

respectively (

0.05). The positive rate of m

SEPT

9 was higher in progressive disease (PD) patients

than in partial response (PR) and stable disease (SD) patients

which were 68.75% and 17.74%

the differences were statistically significant (

0.05). mSEPT9 level before PD and at the time of PD showed statistically significance.

Conclusion:

Plasma m

SEPT

9 detection demonstrates a more satisfactory diagnostic performance in gastric cancer than traditional serum biomarkers. The biomarker can provide information regarding severity with high positive rate among PD patients. The status and level of m

SEPT

9 were of clinical significance in evaluating tumor burden and predicting treatment response.

关键词

Keywords

references

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AI问答

⁰

Expression of plasma methylated Septin9 gene and its clinical significance in patients with gastric cancer

DOI：10.19401/j.cnki.1007-3639.2023.02.009

摘要

Abstract

关键词

Keywords

references