Mamgain Garima, Yadav Shashi Ranjan Mani
Department of Medical Oncology, All India Institute of Medical Sciences Rishikesh, Rishikesh, 249203 India.
Department of Biochemistry, All India Institute of Medical Sciences Rishikesh, Rishikesh, 249203 India.
Indian J Clin Biochem. 2025 Jan;40(1):12-24. doi: 10.1007/s12291-023-01156-x. Epub 2023 Oct 14.
Liquid biopsy is gaining importance in oncology in the age of precision medicine. Extracellular vesicles (EVs), among other tumor-derived indicators, are isolated and analysed from bodily fluids. EVs are secreted by both healthy and cancerous cells and are lipid bilayer-enclosed particles that are diverse in size and molecular makeup. Since their quantity, phenotype, and molecular payload, which includes proteins, lipids, metabolites, and nucleic acids, mirror the nature and origin of parental cells, EVs are valuable transporters of cancer information in tumour context. This makes them interesting candidates for new biomarkers. Being closely linked to the parental cells in terms of composition, quantity, and roles is a crucial aspect of EVs. Multiple studies have shown the crucial part tumor-derived EVs plays in the development of cancer, and this subject is currently a hot one in the field of oncology. The clinical applications of EVs-based technology that are currently being tested in the areas of biomarkers, therapeutic targets, immune evasion tools, biologically designed immunotherapies, vaccines, neutralising approaches, targeting biogenesis, and extracorporeal removal were the main focus of this review. However, more bioengineering refinement is needed to address clinical and commercial limitations. The introduction of these new potential diagnostic tools into clinical practise has the potential to profoundly revolutionise the cancer field, primarily for solid tumours but also for haematological neoplasms. The development of EV-based therapies will be facilitated by improvements in EV engineering methodology and design, transforming the current pharmaceutical environment.
在精准医学时代,液体活检在肿瘤学领域正变得愈发重要。除其他肿瘤衍生指标外,细胞外囊泡(EVs)可从体液中分离并进行分析。健康细胞和癌细胞均可分泌EVs,它们是被脂质双分子层包裹的颗粒,大小和分子组成各异。由于其数量、表型以及包括蛋白质、脂质、代谢物和核酸在内的分子有效载荷反映了亲代细胞的性质和来源,因此EVs是肿瘤环境中癌症信息的重要载体。这使其成为新型生物标志物的有趣候选物。在组成、数量和作用方面与亲代细胞紧密相连是EVs的一个关键特征。多项研究表明肿瘤衍生的EVs在癌症发展中起着关键作用,该主题目前是肿瘤学领域的研究热点。本综述的主要重点是目前正在生物标志物、治疗靶点、免疫逃逸工具、生物设计的免疫疗法、疫苗、中和方法、靶向生物发生和体外清除等领域进行测试的基于EVs技术的临床应用。然而,需要更多的生物工程改进来解决临床和商业限制。将这些新的潜在诊断工具引入临床实践有可能深刻变革癌症领域,主要针对实体瘤,但也适用于血液系统肿瘤。EVs工程方法和设计的改进将促进基于EVs疗法的发展,从而改变当前的制药环境。