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首页> 外文期刊>Journal of cellular physiology. >Exosome DNA: Critical regulator of tumor immunity and a diagnostic biomarker
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Exosome DNA: Critical regulator of tumor immunity and a diagnostic biomarker

机译:外来体DNA:肿瘤免疫的关键调节器和一个诊断的生物标志物

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摘要

Nanosized cellular vesicles "exosome" contains a variety of biological cargo including DNA fragments from cell-of-origin. Despite its biological stability and clinical utility in tumor diagnosis, exosome DNA (ExoDNA) is very little studied as compare with exosome RNA. Cytoplasmic accumulation of damaged DNA from nucleus and mitochondria often leads to its packaging in exosomes by yet unknown pathways. ExoDNA modulates tumor immunity via paracrine interactions and activation of cytosolic DNA sensor pathways, for example, STING, cGAS, and so forth in specific immune cell subsets. In addition to priming tumor immunity, ExoDNA is also emerging as a critical regulator of check-point immunotherapy. As a useful diagnostic biomaterial, ExoDNA contains a variety of clinically relevant tumor-specific mutations representing multiple genes (e.g., EGFR, BRAF, RAS, /DH, and HER2), thus making it a promising "liquid biopsy" material for therapy recommendations. Hence, ExoDNA in addition to tumor immunity modulation, is also emerging as a suitable diagnostic material for personalized therapy in cancer. Here, we review the current status of ExoDNA research and its potential uses in tumor biology.
机译:纳米尺度的细胞囊泡含有一种“外来体”各种生物的货物包括DNA从细胞来源的片段。生物稳定性和临床实用程序肿瘤诊断、外来体DNA (ExoDNA)非常少的研究与外来体RNA。胞质积累受损的DNA细胞核和线粒体常常会导致其包装在未知液通路。ExoDNA通过旁分泌调节肿瘤免疫胞质基因的相互作用和激活传感器通路,例如,刺痛,注册会计师,所以在特定的免疫细胞的子集。除了启动肿瘤免疫力,ExoDNA也成为一个重要的监管机构核对基准点免疫疗法。生物材料,ExoDNA包含各种各样的临床相关的肿瘤特异性突变代表多个基因(如表皮生长因子受体,BRAF,RAS / DH, HER2),因此是一种很有前途的“液体活检”材料治疗建议。肿瘤免疫调制,也成为一个合适的个性化诊断材料治疗癌症。ExoDNA研究现状及其潜在用途在肿瘤生物学。

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