Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer

Early detection of lung cancer in screening programs is a rational way to reduce mortality associated with this malignancy. Low-dose computed tomography, a diagnostic tool used in lung cancer screening, generates a relatively large number of false-positive results, and its complementation with molec...

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Main Authors: Mateusz Smolarz, Piotr Widlak
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/6/1373
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author Mateusz Smolarz
Piotr Widlak
author_facet Mateusz Smolarz
Piotr Widlak
author_sort Mateusz Smolarz
collection DOAJ
description Early detection of lung cancer in screening programs is a rational way to reduce mortality associated with this malignancy. Low-dose computed tomography, a diagnostic tool used in lung cancer screening, generates a relatively large number of false-positive results, and its complementation with molecular biomarkers would greatly improve the effectiveness of such programs. Several biomarkers of lung cancer based on different components of blood, including miRNA signatures, were proposed. However, only a few of them have been positively validated in the context of early cancer detection yet, which imposes a constant need for new biomarker candidates. An emerging source of cancer biomarkers are exosomes and other types of extracellular vesicles circulating in body fluids. Hence, different molecular components of serum/plasma-derived exosomes were tested and showed different levels in lung cancer patients and healthy individuals. Several studies focused on the miRNA component of these vesicles. Proposed signatures of exosome miRNA had promising diagnostic value, though none of them have yet been clinically validated. These signatures involved a few dozen miRNA species overall, including a few species that recurred in different signatures. It is worth noting that all these miRNA species have cancer-related functions and have been associated with lung cancer progression. Moreover, a few of them, including known oncomirs miR-17, miR-19, miR-21, and miR-221, appeared in multiple miRNA signatures of lung cancer based on both the whole serum/plasma and serum/plasma-derived exosomes.
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spelling doaj.art-5187942faa2046bba3552921d8f9f8012023-11-21T10:59:20ZengMDPI AGCancers2072-66942021-03-01136137310.3390/cancers13061373Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung CancerMateusz Smolarz0Piotr Widlak1Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101 Gliwice, PolandMaria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-101 Gliwice, PolandEarly detection of lung cancer in screening programs is a rational way to reduce mortality associated with this malignancy. Low-dose computed tomography, a diagnostic tool used in lung cancer screening, generates a relatively large number of false-positive results, and its complementation with molecular biomarkers would greatly improve the effectiveness of such programs. Several biomarkers of lung cancer based on different components of blood, including miRNA signatures, were proposed. However, only a few of them have been positively validated in the context of early cancer detection yet, which imposes a constant need for new biomarker candidates. An emerging source of cancer biomarkers are exosomes and other types of extracellular vesicles circulating in body fluids. Hence, different molecular components of serum/plasma-derived exosomes were tested and showed different levels in lung cancer patients and healthy individuals. Several studies focused on the miRNA component of these vesicles. Proposed signatures of exosome miRNA had promising diagnostic value, though none of them have yet been clinically validated. These signatures involved a few dozen miRNA species overall, including a few species that recurred in different signatures. It is worth noting that all these miRNA species have cancer-related functions and have been associated with lung cancer progression. Moreover, a few of them, including known oncomirs miR-17, miR-19, miR-21, and miR-221, appeared in multiple miRNA signatures of lung cancer based on both the whole serum/plasma and serum/plasma-derived exosomes.https://www.mdpi.com/2072-6694/13/6/1373biomarkersexosomeextracellular vesicleslung cancermiRNAplasma
spellingShingle Mateusz Smolarz
Piotr Widlak
Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
Cancers
biomarkers
exosome
extracellular vesicles
lung cancer
miRNA
plasma
title Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
title_full Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
title_fullStr Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
title_full_unstemmed Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
title_short Serum Exosomes and Their miRNA Load—A Potential Biomarker of Lung Cancer
title_sort serum exosomes and their mirna load a potential biomarker of lung cancer
topic biomarkers
exosome
extracellular vesicles
lung cancer
miRNA
plasma
url https://www.mdpi.com/2072-6694/13/6/1373
work_keys_str_mv AT mateuszsmolarz serumexosomesandtheirmirnaloadapotentialbiomarkeroflungcancer
AT piotrwidlak serumexosomesandtheirmirnaloadapotentialbiomarkeroflungcancer