The growth arrest-specific transcript 5 (GAS5): a pivotal tumor suppressor long noncoding RNA in human cancers

Area of Science:

• Molecular Biology
• Genetics
• Oncology

Background:

• Long noncoding RNAs (lncRNAs) are key regulators of biological processes, including cell differentiation, proliferation, apoptosis, and migration.
• Dysregulation of lncRNAs is implicated in various cancers, where they can function as oncogenes or tumor suppressors.
• LncRNA GAS5 is identified as a tumor suppressor involved in multiple cancer types, including breast, prostate, lung, and colorectal cancers.

Purpose of the Study:

• To review the current understanding of lncRNA GAS5, encompassing its discovery, characteristics, and biological functions.
• To explore the molecular mechanisms underlying lncRNA GAS5's role in various neoplasms.
• To highlight the potential of lncRNA GAS5 as a diagnostic, therapeutic, and prognostic biomarker in cancer.

Main Methods:

• Literature review of existing studies on lncRNA GAS5.
• Analysis of lncRNA GAS5 expression patterns in different cancer types.
• Synthesis of data regarding the functional roles and molecular mechanisms of lncRNA GAS5.

Main Results:

• LncRNA GAS5 exhibits a low-expression pattern in tumor cells, correlating with increased proliferation capacity.
• Reduced lncRNA GAS5 expression is associated with poorer prognosis in multiple cancers.
• Evidence suggests lncRNA GAS5's involvement in regulating key cellular processes relevant to tumorigenesis.

Conclusions:

• LncRNA GAS5 functions as a crucial tumor suppressor across various neoplasms.
• The downregulation of lncRNA GAS5 contributes to cancer progression and adverse outcomes.
• LncRNA GAS5 holds significant promise as a biomarker for cancer diagnosis and prognosis, and as a potential therapeutic target.