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EGFR 信号与癌症中外泌体生物发生的相互作用与合作。

Cooperation and Interplay between EGFR Signalling and Extracellular Vesicle Biogenesis in Cancer.

机构信息

Central Laser Facility, Research Complex at Harwell, Rutherford Appleton Laboratory, Didcot OX11 0FA, UK.

The Wood Lab, Department of Paediatrics, University of Oxford, Oxford OX1 3QX, UK.

出版信息

Cells. 2020 Dec 8;9(12):2639. doi: 10.3390/cells9122639.

Abstract

Epidermal growth factor receptor (EGFR) takes centre stage in carcinogenesis throughout its entire cellular trafficking odyssey. When loaded in extracellular vesicles (EVs), EGFR is one of the key proteins involved in the transfer of information between parental cancer and bystander cells in the tumour microenvironment. To hijack EVs, EGFR needs to play multiple signalling roles in the life cycle of EVs. The receptor is involved in the biogenesis of specific EV subpopulations, it signals as an active cargo, and it can influence the uptake of EVs by recipient cells. EGFR regulates its own inclusion in EVs through feedback loops during disease progression and in response to challenges such as hypoxia, epithelial-to-mesenchymal transition and drugs. Here, we highlight how the spatiotemporal rules that regulate EGFR intracellular function intersect with and influence different EV biogenesis pathways and discuss key regulatory features and interactions of this interplay. We also elaborate on outstanding questions relating to EGFR-driven EV biogenesis and available methods to explore them. This mechanistic understanding will be key to unravelling the functional consequences of direct anti-EGFR targeted and indirect EGFR-impacting cancer therapies on the secretion of pro-tumoural EVs and on their effects on drug resistance and microenvironment subversion.

摘要

表皮生长因子受体(EGFR)在整个细胞运输过程中处于致癌作用的中心。当装载在细胞外囊泡(EVs)中时,EGFR 是肿瘤微环境中亲代癌细胞与旁观者细胞之间信息传递的关键蛋白之一。为了劫持 EVs,EGFR 需要在 EVs 的生命周期中发挥多种信号作用。该受体参与特定 EV 亚群的生物发生,作为活性货物发出信号,并且可以影响受体细胞对 EVs 的摄取。EGFR 通过疾病进展过程中的反馈回路以及对缺氧、上皮-间充质转化和药物等挑战的反应,调节其自身在 EVs 中的包含。在这里,我们强调了调节 EGFR 细胞内功能的时空规则如何与不同的 EV 生物发生途径交叉并影响它们,并讨论了这种相互作用的关键调节特征和相互作用。我们还详细阐述了与 EGFR 驱动的 EV 生物发生相关的悬而未决的问题以及探索这些问题的可用方法。这种机制理解对于揭示直接针对 EGFR 的靶向治疗和间接影响 EGFR 的癌症治疗对促肿瘤 EVs 分泌的功能后果以及它们对耐药性和微环境颠覆的影响将是关键。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/63d6/7764760/2948c5cb77cf/cells-09-02639-g001.jpg

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