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Review
. 2022 Mar;61(3):269-280.
doi: 10.1002/mc.23378. Epub 2021 Dec 12.

Tumor-derived exosomes: Key players in non-small cell lung cancer metastasis and their implication for targeted therapy

Maryam Noor Rizwan  1 , Yunxia Ma  1 , Miljana Nenkov  1 , Lai Jin  2 , Desiree Charlotte Schröder  1 , Martin Westermann  3 , Nikolaus Gaßler  1 , Yuan Chen  1
Affiliations
Review

Tumor-derived exosomes: Key players in non-small cell lung cancer metastasis and their implication for targeted therapy

Maryam Noor Rizwan et al. Mol Carcinog. 2022 Mar.

Abstract

Exosomes represent extracellular vesicles of endocytic origin ranging from 30 to 100 nm that are released by most of eukaryotic cells and can be found in body fluids. These vesicles in carrying DNA, RNA, microRNA (miRNA), Long noncoding RNA, proteins, and lipids serve as intercellular communicators. Due to their role in crosstalk between tumor cells and mesenchymal stroma cells, they are vital for tumor growth, progression, and anticancer drug resistance. Lung cancer is a global leading cause of cancer-related deaths with 5-year survival rates of about 7% in patients with distant metastasis. Although the implementation of targeted therapy has improved the clinical outcome of nonsmall cell lung cancer, drug resistance remains a major obstacle. Lung tumor-derived exosomes (TDEs) conveying molecular information from tumor cells to their neighbor cells or cells at distant sites of the body activate the tumor microenvironment (TME) and facilitate tumor metastasis. Exosomal miRNAs are also considered as noninvasive biomarkers for early diagnosis of lung cancer. This review summarizes the influence of lung TDEs on the TME and metastasis. Their involvement in targeted therapy resistance and potential clinical applications are discussed. Additionally, challenges encountered in the development of exosome-based therapeutic strategies are addressed.

Keywords: exosome; lung cancer; metastasis; microRNA; targeted therapy; the tumor microenvironment.

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