4.6 Review

Novel Insights Into MALAT1 Function as a MicroRNA Sponge in NSCLC

Journal

FRONTIERS IN ONCOLOGY
Volume 11, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2021.758653

Keywords

long non-coding RNA; metastasis-associated lung adenocarcinoma transcript-1; non-small cell lung cancer; metastasis; invasion; microRNA

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Funding

  1. National Natural Science Foundation of China

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The long non-coding RNA MALAT1 is overexpressed in NSCLC and is associated with tumor size, stage, metastasis, and invasion, making it a potential biomarker for early diagnosis and prognosis evaluation of the disease.
The long non-coding RNA metastasis-associated lung adenocarcinoma transcript-1 (MALAT1) was initially found to be overexpressed in early non-small cell lung cancer (NSCLC). Accumulating studies have shown that MALAT1 is overexpressed in the tissue or serum of NSCLC and plays a key role in its occurrence and development. In addition, the expression level of MALAT1 is significantly related to the tumor size, stage, metastasis, and distant invasion of NSCLC. Therefore, MALAT1 could be used as a biomarker for the early diagnosis, severity assessment, or prognosis evaluation of NSCLC patients. This review describes the basic properties and biological functions of MALAT1, focuses on the specific molecular mechanism of MALAT1 as a microRNA sponge in the occurrence and development of NSCLC in recent years, and emphasizes the application and potential prospect of MALAT1 in molecular biological markers and targeted therapy of NSCLC.

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