Exofection by exosomes: A transient functional cargo transfer

Ramkumar Menon, Madhuri Tatiparthy, Jessica Selim, Isidore Mushimiyimana, Brinley Harrington, Awanit Kumar, Lauren Richardson, Emmanuel Amabebe, Ananth Kumar Kammala
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Abstract

Exosomes have emerged as key mediators of inter-cellular communication, transporting a diverse array of cargos that can reflect the current biological state of the cell. Recent advancements in exosome biology have unveiled their crucial role in cell signaling and paracrine-mediated functions. In this article, we will highlight the concept of exofection. In this well-defined donor-recipient relationship, donor cells produce specific biomolecules encapsulated within exosomes, which are then delivered to recipient cells. This process is particularly crucial when recipient cells experience functional deficiencies due to physiological or pathological conditions. Upon receiving the exosomal cargo, recipient cells transiently express and exhibit the functional activity of the delivered molecules. The functional enhancement mediated by exofection is transient, gradually diminishing once the delivery from the donor cells declines, and the recipient cell no longer needs specific function. Utilizing studies from various fields, we highlight the diverse biological contexts in which exofection operates. For instance, mitochondria-containing EVs from brain endothelial cells restore mitochondrial function and tight junction integrity in ischemic brain tissues. In contrast, exosomes from TNF-α-preconditioned mesenchymal stromal cells regulate autophagy and inflammation in acute pancreatitis. Similarly, Th2 cell-derived EVs promote eosinophil survival during airway inflammation, and umbilical cord blood exosomes accelerate wound healing by enhancing angiogenesis and fibroblast function. The role of exosomes in complex pathophysiological contexts such as myocardial infarction, glioblastoma, and liver failure can be crucial. In each scenario, the donor cells' exosomal cargo modulates recipient cell functions, promoting tissue repair, immune regulation, or metastasis. This work expands the conceptual framework of exofection and emphasizes its potential impact on therapeutic development and understanding the pathophysiology of various diseases.
外泌体的外泌:一种短暂的功能性货物转移
外泌体已成为细胞间通讯的关键介质,运输各种各样的货物,可以反映细胞当前的生物状态。外泌体生物学的最新进展揭示了它们在细胞信号传导和旁分泌介导功能中的重要作用。在本文中,我们将重点介绍外显的概念。在这种明确的供体-受体关系中,供体细胞产生包裹在外泌体内的特定生物分子,然后将其传递给受体细胞。当受体细胞由于生理或病理条件而经历功能缺陷时,这一过程尤为重要。在接受外泌体货物后,受体细胞短暂地表达并表现出所传递分子的功能活性。外排介导的功能增强是短暂的,一旦供体细胞的递送减少,受体细胞不再需要特定的功能,功能增强就会逐渐减弱。利用来自不同领域的研究,我们强调了外溢作用的不同生物学背景。例如,来自脑内皮细胞的含线粒体的ev可以恢复缺血脑组织的线粒体功能和紧密连接的完整性。相反,来自TNF-α-预处理间充质基质细胞的外泌体调节急性胰腺炎的自噬和炎症。同样,Th2细胞衍生的ev促进气道炎症期间嗜酸性粒细胞的存活,脐带血外泌体通过增强血管生成和成纤维细胞功能加速伤口愈合。外泌体在复杂的病理生理环境中的作用,如心肌梗死、胶质母细胞瘤和肝衰竭,可能是至关重要的。在每种情况下,供体细胞的外泌体货物调节受体细胞功能,促进组织修复,免疫调节或转移。这项工作扩展了外排的概念框架,并强调其对治疗发展和理解各种疾病的病理生理的潜在影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Extracellular vesicle
Extracellular vesicle Biochemistry, Genetics and Molecular Biology (General)
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