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Identification of Antisense RNA NRAS-AS and Its Preliminary Exploration of the Anticancer Regulatory Mechanism

Liping Wang1,2, Xuming Hu2,3, Chenyue Tao4

  • 1Department of Biobank, Northern Jiangsu People's Hospital Affiliated to Yangzhou University, Yangzhou 225001, China.

Genes
|January 8, 2025
PubMed
Abstract

Insights

Reduced NRAS-AS expression is linked to hepatocellular carcinoma (HCC) progression. This antisense RNA suppresses tumor growth and invasion, suggesting it could be a therapeutic target for liver cancer.

Area of Science:

  • Molecular Biology
  • Oncology
  • Genetics

Background:

  • Hepatocellular carcinoma (HCC) is a major global health concern.
  • The role of non-coding RNAs, such as NRAS-AS, in HCC pathogenesis is increasingly recognized.
  • Understanding the regulatory mechanisms of HCC is crucial for developing effective therapies.

Purpose of the Study:

  • To investigate the functional role of NRAS-AS in HCC cells.
  • To elucidate the underlying molecular mechanisms by which NRAS-AS influences HCC progression.
  • To evaluate NRAS-AS as a potential diagnostic biomarker and therapeutic target for HCC.

Main Methods:

  • NRAS-AS was identified using high-throughput sequencing and bioinformatics.
  • Functional assays (proliferation, apoptosis, cell cycle, migration, invasion) were performed on HCC cell lines (HepG2, SMMC-7721).
  • In vivo tumor formation assays in nude mice and analysis of clinical samples (RT-qPCR, IHC, Western blotting) were conducted.

Main Results:

  • NRAS-AS overexpression suppressed HCC cell proliferation, migration, and invasion, while promoting apoptosis.
  • NRAS-AS interference had opposite effects, enhancing invasion and inhibiting apoptosis.
  • NRAS-AS expression was inversely correlated with NRAS gene expression in HCC tissues, and its overexpression reduced NRAS protein levels.

Conclusions:

  • Reduced NRAS-AS expression is a common feature in HCC and is associated with disease progression.
  • NRAS-AS plays a tumor-suppressive role in HCC, likely through the regulation of NRAS.
  • NRAS-AS represents a promising therapeutic target and diagnostic biomarker for hepatocellular carcinoma.
Keywords:
AZADNA methylationNRAS-ASantisense RNAhepatocellular carcinoma

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