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中华乳腺病杂志(电子版) ›› 2024, Vol. 18 ›› Issue (04) : 212 -216. doi: 10.3877/cma.j.issn.1674-0807.2024.04.004

论著

乳腺癌患者血清外泌体中长链非编码RNA BC200的表达及临床意义
刘政宏1, 袁春銮1,()   
  1. 1. 222000 连云港市第一人民医院肿瘤科
  • 收稿日期:2024-03-30 出版日期:2024-08-01
  • 通信作者: 袁春銮
  • 基金资助:
    江苏省第十四期"六大人才高峰"资助项目(SWYY-200); 连云港市科技项目(SH1407)

Expression of long non-coding RNA BC200 in serum exosomes of breast cancer patients and its clinical significance

Zhenghong Liu1, Chunluan Yuan1,()   

  1. 1. Department of Oncology, First People’s Hospital of Lianyungang, Lianyungang 222000, China
  • Received:2024-03-30 Published:2024-08-01
  • Corresponding author: Chunluan Yuan
引用本文:

刘政宏, 袁春銮. 乳腺癌患者血清外泌体中长链非编码RNA BC200的表达及临床意义[J]. 中华乳腺病杂志(电子版), 2024, 18(04): 212-216.

Zhenghong Liu, Chunluan Yuan. Expression of long non-coding RNA BC200 in serum exosomes of breast cancer patients and its clinical significance[J]. Chinese Journal of Breast Disease(Electronic Edition), 2024, 18(04): 212-216.

目的

探讨乳腺癌患者血清外泌体中长链非编码RNA BC200(lncRNA BC200)的表达及临床意义。

方法

回顾性分析2021年1月至2024年1月连云港市第一人民医院收治的100例乳腺癌患者和50例乳腺增生患者的临床资料,以及同时间体检的健康女性30例作为对照组。对血清样本中的外泌体进行提取,观察外泌体颗粒的形态特征并检测颗粒浓度。采用RT-PCR检测3组外泌体样本的lncRNA BC200表达。计量资料的2组间比较采用独立样本t检验,多组间比较采用方差分析,两两比较采用LSD法;计数资料的组间比较采用χ2检验。采用受试者操作特征曲线(ROC)分析血清外泌体中lncRNA BC200对乳腺癌的诊断价值。

结果

外泌体呈现典型的圆形或椭圆形,具有清晰的脂质双层膜结构;乳腺癌组、乳腺增生组和健康对照组血清外泌体中lncRNA BC200的相对表达量分别为2.76±0.91、1.15±0.42和0.69±0.18,3组比较,差异有统计学意义(F=5.087,P<0.001)。进一步两两比较发现,乳腺癌组和乳腺增生组患者血清外泌体lncRNA BC200的相对表达量高于对照组(P均<0.001),乳腺癌组高于乳腺增生组(P<0.001);临床分期晚、组织学分级高、淋巴结转移的乳腺癌患者血清外泌体中lncRNA BC200的相对表达量更高(Ⅲ~Ⅳ期比Ⅰ~Ⅱ期:t=5.342,P<0.001;2~3级比1级:t=8.804,P<0.001;淋巴结转移比不转移:t=5.516,P<0.001);血清外泌体lncRNA BC200诊断乳腺癌的ROC曲线下面积为0.819(95%CI:0.803~0.967,P<0.001),敏感度为91.73%,特异度为84.05%。

结论

lncRNA BC200在乳腺癌患者血清外泌体中表达上调,其表达与乳腺癌组织学分级、临床分期及淋巴结转移有关,或将成为乳腺癌临床诊断的评价指标。

Objective

To investigate the expression and clinical significance of long non-coding RNA BC200 (lncRNA BC200) in serum exosomes of breast cancer patients.

Methods

A retrospective analysis was conducted on clinical data from 100 breast cancer patients and 50 patients with breast hyperplasia treated in the First People’s Hospital of Lianyungang from January 2021 to January 2024. Another 30 healthy women undergoing physical examinations during the same period served as control group. Exosomes were extracted from serum samples, and the morphological characteristics and particle concentration of the exosomes were observed. RT-PCR was used to detect the expression of lncRNA BC200 in exosome samples from the three groups. For measurement data, independent sample t test was used for comparison between two groups, ANOVA for comparison between multiple groups, and LSD for pairwise comparison. The χ2 test was used for comparison of categorical data between groups. The diagnostic value of lncRNA BC200 in serum exosomes for breast cancer was analyzed using the receiver operating characteristic (ROC) curve.

Results

Exosomes exhibited a typical round or oval morphology, with clear lipid bilayer structures. The relative expression levels of lncRNA BC200 in serum exosomes were 2.76±0.91, 1.15±0.42 and 0.69±0.18 in the breast cancer group, breast hyperplasia group and healthy control group, respectively, indicating a statistically significant difference among three groups (F=5.087, P<0.001). Further pairwise comparisons revealed that the breast cancer group and breast hyperplasia group showed significantly higher expression levels of lncRNA BC200 compared with the control group (both P<0.001), and the breast cancer group showed significantly higher expression levels of lncRNA BC200 compared with the breast hyperplasia group (P<0.001). Breast cancer patients with advanced clinical stage, higher histological grade and lymph node metastasis had significantly higher expression levels of lncRNA BC200 in serum exosomes (stage Ⅲ-Ⅳ vs stage Ⅰ-Ⅱ: t=5.342, P<0.001; grade 2-3 vs grade 1: t=8.804, P<0.001; lymph node metastasis vs no metastasis: t=5.516, P<0.001). The area under the ROC curve for diagnosing breast cancer with serum exosomal lncRNA BC200 was 0.819 (95%CI: 0.803-0.967, P<0.001), with a sensitivity of 91.73% and a specificity of 84.05%.

Conclusions

The lncRNA BC200 is upregulated in serum exosomes of breast cancer patients, and its expression is associated with histological grade, clinical stage and lymph node metastasis of breast cancer. It may serve as an indicator for clinical diagnosis of breast cancer.

图1 3组样品外泌体颗粒分布
图2 透射电子显微镜下观察血清外泌体颗粒形态(×50 000)
表1 外泌体中lncRNA BC200与乳腺癌患者临床病理特征的关系
图3 血清外泌体lncRNA BC200诊断乳腺癌的受试者操作特征曲线
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