Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer

Extracellular vesicles (EVs) are produced by all living cells and are present in all body fluids. EVs are heterogeneous in size, biogenesis, molecular/genetic content and functions. They constitute a part of the intercellular communication system. Among them, a subset of small EVs (sEVs) (30–150 nm)...

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Main Author: Theresa L Whiteside
Format: Article
Language:English
Published: BMJ Publishing Group 2025-01-01
Series:Journal for ImmunoTherapy of Cancer
Online Access:https://jitc.bmj.com/content/13/1/e010376.full
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author Theresa L Whiteside
author_facet Theresa L Whiteside
author_sort Theresa L Whiteside
collection DOAJ
description Extracellular vesicles (EVs) are produced by all living cells and are present in all body fluids. EVs are heterogeneous in size, biogenesis, molecular/genetic content and functions. They constitute a part of the intercellular communication system. Among them, a subset of small EVs (sEVs) (30–150 nm) originating in the tumor cell endosomes and often referred to as “tumor cell-derived exosomes” have been of special interest. Tumors have adapted sEV they produce to promoting their own survival. Plasma of patients with cancer contains variably elevated numbers of tumor-derived sEV called “TEX,” which differ from circulating sEV produced by non-malignant cells by the immunosuppressive phenotype and the molecular/genetic content. Immunosuppressive molecular profiles and abilities to signal, enter and functionally reprogram a variety of recipient cells enable TEX to exert pro-tumor effects that promote tumor resistance to immunotherapy. This review describes phenotypic and functional attributes of TEX that underline their reprogramming capabilities. It also considers mechanisms responsible for TEX pro-tumor activities and the potential significance of TEX signaling for responses of patients with cancer to immune therapies.
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spelling doaj-art-de69e57c9662404dbdac99647faf55f32025-02-10T15:40:14ZengBMJ Publishing GroupJournal for ImmunoTherapy of Cancer2051-14262025-01-0113110.1136/jitc-2024-010376Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancerTheresa L Whiteside0Aff1 grid.21925.3d0000000419369000University of Pittsburgh Pittsburgh PA USAExtracellular vesicles (EVs) are produced by all living cells and are present in all body fluids. EVs are heterogeneous in size, biogenesis, molecular/genetic content and functions. They constitute a part of the intercellular communication system. Among them, a subset of small EVs (sEVs) (30–150 nm) originating in the tumor cell endosomes and often referred to as “tumor cell-derived exosomes” have been of special interest. Tumors have adapted sEV they produce to promoting their own survival. Plasma of patients with cancer contains variably elevated numbers of tumor-derived sEV called “TEX,” which differ from circulating sEV produced by non-malignant cells by the immunosuppressive phenotype and the molecular/genetic content. Immunosuppressive molecular profiles and abilities to signal, enter and functionally reprogram a variety of recipient cells enable TEX to exert pro-tumor effects that promote tumor resistance to immunotherapy. This review describes phenotypic and functional attributes of TEX that underline their reprogramming capabilities. It also considers mechanisms responsible for TEX pro-tumor activities and the potential significance of TEX signaling for responses of patients with cancer to immune therapies.https://jitc.bmj.com/content/13/1/e010376.full
spellingShingle Theresa L Whiteside
Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
Journal for ImmunoTherapy of Cancer
title Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
title_full Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
title_fullStr Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
title_full_unstemmed Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
title_short Biology of extracellular vesicles and the potential of tumor-derived vesicles for subverting immunotherapy of cancer
title_sort biology of extracellular vesicles and the potential of tumor derived vesicles for subverting immunotherapy of cancer
url https://jitc.bmj.com/content/13/1/e010376.full
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