MEOX2过表达通过靶向氧化应激诱导的RGS5抑制乳腺癌细胞转移。

IF 1.5 4区 生物学 Q4 CELL BIOLOGY
Yujun Tang, Jie Luo, Bin Jiang, Jian Deng, Jiehua Li, Liuqing Qin
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引用次数: 0

摘要

本研究旨在探讨mesenchymal homeobox 2 (MEOX2)在乳腺癌细胞转移中的作用及其机制。建立MEOX2在人淋巴内皮细胞(HLEC)中的过表达,以评估MCF7和MDA-MB-231细胞对HLEC细胞的粘附和跨内皮迁移。用氧化应激诱导剂H2O2和抗氧化剂n -乙酰半胱氨酸(NAC)处理后,检测MCF7和MDA-MB-231细胞向HLEC细胞的细胞活力、活性氧(ROS)水平、粘附和跨内皮迁移。在异种移植模型中观察到肿瘤体积的变化。检测肿瘤组织中C-X-C趋化因子受体4型(CXCR4)、C-C趋化因子受体7型(CCR7)、MEOX2、G蛋白信号转导调节剂5 (RGS5)的表达及ROS水平。MEOX2在乳腺癌组织中低表达。MEOX2的上调抑制淋巴内皮细胞的增殖以及MCF7和MDA-MB-231细胞对HLEC细胞的粘附和跨内皮迁移。氧化应激诱导剂H2O2处理MCF7和MDA-MB-231细胞后,ROS水平升高,细胞活力和MEOX2表达降低。NAC或过表达MEOX2处理后,HLEC细胞中MEOX2表达升高,ROS和RGS5水平下降,粘附能力和跨内皮迁移能力下降。过表达MEOX2导致肿瘤体积变小,ROS水平降低,CXCR4和CCR7表达水平降低。MEOX2和RGS5在调节乳腺癌转移中起关键作用,为乳腺癌转移的潜在治疗策略提供了有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Overexpression of MEOX2 inhibits breast cancer cell metastasis by targeting oxidative stress-induced RGS5.

This study aimed to investigate the role of mesenchymal homeobox 2 (MEOX2) on breast cancer cell metastasis and its underlying mechanism. Overexpression of MEOX2 in human lymphatic endothelial cell (HLEC) lines was established to assess the adhesion and transendothelial migration of MCF7 and MDA-MB-231 cells to the HLEC cells. After being treated with the oxidative stress inducer H2O2 and the antioxidant N-acetylcysteine (NAC), cell viability, reactive oxygen species (ROS) levels, adhesion, and transendothelial migration of MCF7 and MDA-MB-231 cells to HLEC cells were detected. Tumor volume changes were observed in the xenograft model. The expression of C-X-C chemokine receptor type 4 (CXCR4), C-C chemokine receptor type 7 (CCR7), MEOX2, and G protein signal transduction regulator 5 (RGS5) in tumor tissues and ROS levels were detected. MEOX2 was lowly expressed in breast cancer tissues. Upregulated MEOX2 inhibited the proliferation of lymphatic endothelial cells and the adhesion and transendothelial migration of MCF7 and MDA-MB-231 cells to HLEC cells. After MCF7 and MDA-MB-231 cells were treated with oxidative stress inducer H2O2, ROS levels increased, and cell viability and MEOX2 expression decreased. After NAC or overexpressed MEOX2 treatment, MEOX2 expression increased, ROS and RGS5 levels, adhesion, and transendothelial migration ability decreased in HLEC cells. Overexpression of MEOX2 resulted in smaller tumor volume, lower ROS levels, and lower CXCR4 and CCR7 expression levels. MEOX2 and RGS5 are pivotal in regulating breast cancer metastasis, offering valuable insights into potential therapeutic strategies for breast cancer metastasis.

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来源期刊
CiteScore
3.70
自引率
4.80%
发文量
96
审稿时长
3 months
期刊介绍: In Vitro Cellular & Developmental Biology - Animal is a journal of the Society for In Vitro Biology (SIVB). Original manuscripts reporting results of research in cellular, molecular, and developmental biology that employ or are relevant to organs, tissue, tumors, and cells in vitro will be considered for publication. Topics covered include: Biotechnology; Cell and Tissue Models; Cell Growth/Differentiation/Apoptosis; Cellular Pathology/Virology; Cytokines/Growth Factors/Adhesion Factors; Establishment of Cell Lines; Signal Transduction; Stem Cells; Toxicology/Chemical Carcinogenesis; Product Applications.
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