Epigenetic Regulation of DNA Methylation and RNA Interference in Gastric Cancer: A 2024 Update

Author:

Lupan Iulia1,Bintintan Vasile2,Deleanu Diana3,Samasca Gabriel3ORCID

Affiliation:

1. Department of Molecular Biology, Babes-Bolyai University, 400084 Cluj-Napoca, Romania

2. Department of Surgery 1, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania

3. Department of Immunology, Iuliu Hatieganu University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania

Abstract

Gastric cancer (GC) remains a significant public health concern because of its lethality, underscoring the need for deeper insights into its molecular mechanisms. Recent studies have increasingly highlighted the role of epigenetic modifications as critical players in cancer progression. Despite their importance, research specifically addressing epigenetic factors in GC is relatively scarce. This paper seeks to bridge that gap by examining recent literature that elucidates the epigenetic landscape associated with GC. The investigation of long noncoding RNAs (lncRNAs) has revealed their substantial involvement in gene dysregulation and epigenetic alterations within GC tumors. Notably, lncRNAs such as LINC00853 and LINC01266 have been identified as significant contributors to the epigenetic modulation of gene expression. Furthermore, the overexpression of KAT5 and GPX4 has been shown to mitigate the antiproliferative effects resulting from the depletion of circRHOT1, suggesting a complex interplay between these molecules in GC pathophysiology. Another pivotal aspect of epigenetic regulation in GC involves modifications in N6-methyladenosine (m6A), which play crucial roles in mRNA maturation processes such as splicing, export, degradation, and translation. m6A modifications are known for their influence on various cancer-related pathways, thus presenting a potential avenue for targeted interventions. Our findings indicate that the most pronounced instances of epigenetic dysregulation in GC can be traced back to the effects of long lncRNAs and alterations in m6A modification patterns. This underscores the urgent need for comprehensive investigations into these epigenetic factors, as a deeper understanding could lead to enhanced diagnostic markers and innovative therapeutic strategies. The integration of genetic and epigenetic considerations is essential for advancing the field of GC research. This synthesis of recent findings concerning epigenetic regulation offers valuable insights that could inform future studies and therapeutic developments. There is a critical need for ongoing research to elucidate the complexities of epigenetic modifications in GC, ultimately improving patient outcomes through tailored interventions.

Publisher

MDPI AG

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