Oncotarget

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Exosomes isolation and characterization in serum is feasible in non-small cell lung cancer patients: critical analysis of evidence and potential role in clinical practice

Simona Taverna, Marco Giallombardo, Ignacio Gil-Bazo, Anna Paola Carreca, Marta Castiglia, Jorge Chacártegui, Antonio Araujo, Riccardo Alessandro, Patrick Pauwels, Marc Peeters and Christian Rolfo _

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Oncotarget. 2016; 7:28748-28760. https://doi.org/10.18632/oncotarget.7638

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Abstract

Simona Taverna1,2,*, Marco Giallombardo1,3,*, Ignacio Gil-Bazo4, Anna Paola Carreca3, Marta Castiglia3, Jorge Chacártegui3, Antonio Araujo5, Riccardo Alessandro1,2, Patrick Pauwels6, Marc Peeters7 and Christian Rolfo3

1 Department of Biopathology and Medical Biotechnology, Section of Biology and Genetics, University of Palermo, Palermo, Italy

2 Institute of Biomedicine and Molecular Immunology (IBIM), National Research Council, Palermo, Italy

3 Phase I-Early Clinical Trials Unit, Oncology Department, Antwerp University Hospital (UZA) and Center for Oncological Research (CORE) Antwerp University, Wilrijkstraat, Edegem, Antwerp, Belgium

4 Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain

5 Service of Medical Oncology, Centro Hospitalar do Porto, Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal

6 Molecular Pathology, Pathology Department, Antwerp University Hospital (UZA) and Center for Oncological Research (CORE) Antwerp University, Wilrijkstraat, Edegem, Antwerp, Belgium

7 Oncology Department, Antwerp University Hospital (UZA) and Center for Oncological Research (CORE) Antwerp University, Wilrijkstraat, Edegem, Antwerp, Belgium

* These authors have contributed equally to this work

Correspondence to:

Christian Rolfo, email:

Simona Taverna, email:

Keywords: exosomes; NSCLC; liquid biopsies; biomarkers; microRNAs

Received: November 03, 2015 Accepted: January 29, 2016 Published: February 23, 2016

Abstract

Exosomes are nano-sized vesicles of endolysosomal origin, released by several cytotypes in physiological and pathological conditions. Tumor derived exosomes, interacting with other cells of the tumor microenvironment, modulate tumor progression, angiogenic switch, metastasis, and immune escape. Recently, extracellular vesicles were proposed as excellent biomarkers for disease monitoring and prognosis in cancer patients. Non-small cell lung cancer (NSCLC) has a poor 5-year survival rate due to the delay in the detection of the disease. The majority of patients are diagnosed in an advanced disease stage. Exosomes might be promising beneficial tools as biomarker candidates in the scenario of NSCLC, since they contain both, proteins and miRNAs. The clinical case reported in this manuscript is a proof of concept revealing that NSCLC exosomes and sorted miRNAs might constitute, in a near future, novel biomarkers. This review summarizes the role of exosomes in NSCLC, focusing on the importance of exosomal microRNAs in lung cancer diagnosis and prognosis.


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