广州医药 ›› 2022, Vol. 53 ›› Issue (2): 56-67.DOI: 10.3969/j.issn.1000-8535.2022.02.013

• 论著 • 上一篇    下一篇

基因芯片初步探讨乳腺癌转移相关蛋白Nucleobindin-2介导的信号通路

符青云1, 欧阳小明2, 郅程2, 曾亮3   

  1. 1 广东省江门市五邑中医院病理科(江门 529031)
    2 广州医科大学附属第二医院病理科(广州 510260)
    3 广州市妇女儿童医疗中心病理科(广州 510623)
  • 收稿日期:2021-09-23 发布日期:2022-04-12
  • 通讯作者: 曾亮,E-mail:zlxx03@126.com
  • 基金资助:
    湖南省卫生计生委科研计划课题(B2017097)

Study of breast cancer metastasis associated protein nucleobindin-2 mediated signal pathway by gene chip

FU Qingyun1, OUYANG Xiaoming2, ZHI Cheng2, ZENG Liang3   

  1. 1 Department of Pathology, Wuyi Traditional Chinese Medicine Hospital, Jiangmen 529031, China
    2 Department of Pathology, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
    3 Department of Pathology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
  • Received:2021-09-23 Published:2022-04-12

摘要: 目的 探讨核结合蛋白2(NUCB2)介导的下游信号分子和通路,为阐明NUCB2在乳腺癌中的功能提供依据。方法 构建NUCB2-RNAi慢病毒载体,感染MDA-MB-231细胞株。然后将MDA-MB-231分为阴性对照病毒感染细胞组(NC组)、感染NUCB2基因shRNA病毒细胞组(KD组),用Affymetrix基因表达谱芯片对NUCB2下游基因进行筛选,并对所有数据进行独创性通路分析(IPA)分析。用qPCR测定mRNA水平。统计采用SPSS 20.0软件。结果 Path-Array研究筛选了KD组与NC组的差异基因,其中上调基因186个,下调基因356个,部分差异表达基因的检测表明,这些基因的mRNA水平与Path-Array筛选结果一致。IPA分析显示,经典途径中差异表达基因的显著富集表明胆固醇生物合成的超途径被显著抑制。上游调节因子分析显示了所有不同表达基因的上游调节因子,包括转录因子、细胞因子、小RNA、受体、激酶、化学分子和药物。疾病和功能差异表达基因的显著丰富表明,与NUCB2相关的差异表达基因与41种疾病和功能显著相关,更多与癌症、组织损伤和异常相关。结论 NUCB2的功能涉及多种基因和多种信号通路。

关键词: 乳腺癌, 通路, 基因芯片, 核结合蛋白2

Abstract: Objective In order to further explore the downstream signal molecules and pathways mediated by nucleobindin-2 (NUCB2), to provide a basis for elucidating the significance of NUCB2 in breast cancer. Method NUCB2-RNAi lentivirus vector was constructed and infecting MDA-MB-231 cell line.Then MDA-MB-231 cells were divived into two group, cells with negative control virus infection (NC group) and cells infected with NUCB2 gene shRNA virus (KD group). NUCB2 downstream gene screening was conducted by Affymetrix gene expression profiling Path-Array chip and all data were analyzed by ingenuity pathway analysis (IPA). The mRNA level was detected by qPCR. SPSS 20.0 software was used for statistics. Results Path-Array study screened out differential genes between KD and NC group which the number of up-regulated genes was 186, the number of down-regulated genes was 356.Detection of some differentially expressed genes showed that the mRNA levels of these genes were consistent with the results of Path-Array screening.IPA analysis revealed that significant enrichment of differentially expressed genes in the classical pathway showed superpathway of cholesterol biosynthesis was significantly inhibited.The upstream regulatory factor analysis showed the upstream regulatory factors of all the differentially expressed genes, including transcription factors, cytokine, small RNA, receptors, kinases, chemical molecules and drugs.The significant enrichment of differentially expressed genes in disease and function showed that NUCB2 associated differentially expressed genes were significantly related with 41 diseases and functions, which were more related with cancer, organismal injury and abnormities. Conclusion The function of NUCB2 involved multiple genes and multiple signaling pathways.

Key words: breast cancer, pathway, gene chip, nucleobindin-2