肿瘤微环境中 microRNAs 的治疗靶向。
Therapeutic Targeting of MicroRNAs in the Tumor Microenvironment.
机构信息
Institute of Biochemistry I, Faculty of Medicine, Goethe-University Frankfurt, 60590 Frankfurt, Germany.
Project Group Translational Medicine and Pharmacology TMP, Fraunhofer Institute for Molecular Biology and Applied Ecology, 60596 Frankfurt, Germany.
出版信息
Int J Mol Sci. 2021 Feb 23;22(4):2210. doi: 10.3390/ijms22042210.
The tumor-microenvironment (TME) is an amalgamation of various factors derived from malignant cells and infiltrating host cells, including cells of the immune system. One of the important factors of the TME is microRNAs (miRs) that regulate target gene expression at a post transcriptional level. MiRs have been found to be dysregulated in tumor as well as in stromal cells and they emerged as important regulators of tumorigenesis. In fact, miRs regulate almost all hallmarks of cancer, thus making them attractive tools and targets for novel anti-tumoral treatment strategies. Tumor to stroma cell cross-propagation of miRs to regulate protumoral functions has been a salient feature of the TME. MiRs can either act as tumor suppressors or oncogenes (oncomiRs) and both miR mimics as well as miR inhibitors (antimiRs) have been used in preclinical trials to alter cancer and stromal cell phenotypes. Owing to their cascading ability to regulate upstream target genes and their chemical nature, which allows specific pharmacological targeting, miRs are attractive targets for anti-tumor therapy. In this review, we cover a recent update on our understanding of dysregulated miRs in the TME and provide an overview of how these miRs are involved in current cancer-therapeutic approaches from bench to bedside.
肿瘤微环境(TME)是由恶性细胞和浸润宿主细胞产生的各种因素的混合体,包括免疫系统细胞。TME 的重要因素之一是 microRNAs(miRs),它在转录后水平调节靶基因的表达。已经发现 miRs 在肿瘤以及基质细胞中失调,并且它们作为肿瘤发生的重要调节剂而出现。事实上,miRs 调节癌症的几乎所有标志,因此使它们成为有吸引力的工具和新的抗肿瘤治疗策略的靶点。肿瘤向基质细胞传播 miR 以调节促进肿瘤的功能是 TME 的一个显著特征。miRs 可以作为肿瘤抑制因子或癌基因(oncomiRs),miR 模拟物和 miR 抑制剂(antimiRs)都已在临床前试验中用于改变癌症和基质细胞表型。由于它们能够级联调节上游靶基因的能力及其允许特异性药理靶向的化学性质,miRs 是抗肿瘤治疗的有吸引力的靶点。在这篇综述中,我们涵盖了对 TME 中失调的 miRs 的最新理解,并概述了这些 miRs 如何参与从实验室到临床的当前癌症治疗方法。