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RNA Pull-down Procedure to Identify RNA Targets of a Long Non-coding RNA
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Long non-coding RNA AB007962 is downregulated in gastric cancer and associated with poor prognosis

Jia-Jun Wang1, Yu-Chong Yang1, Yong-Xi Song1

  • 1Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China.

Oncology Letters
|September 15, 2018
PubMed

Insights

Reduced expression of the long non-coding RNA (lncRNA) AB007962 is linked to poorer prognosis in gastric cancer (GC). This lncRNA may serve as a novel biomarker for predicting outcomes in GC patients, especially those with intestinal-type GC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Gastric cancer (GC) is associated with dysregulation of numerous long non-coding RNAs (lncRNAs).
  • These lncRNAs play roles in various biological and pathological processes within GC development.
  • Identifying novel lncRNAs and their roles is crucial for understanding GC progression.

Purpose of the Study:

  • To investigate the expression level of a novel lncRNA, AB007962, in gastric cancer tissues.
  • To analyze the association between AB007962 expression and clinicopathological features of GC.
  • To evaluate the prognostic significance of AB007962 in patients with gastric cancer.

Main Methods:

  • RNA extraction from 96 pairs of GC and matched normal adjacent tissues (NATs).
  • Quantitative reverse transcription polymerase chain reaction (RT-qPCR) to determine AB007962 expression.
  • Statistical analysis of expression levels, clinicopathological features, and survival data (Kaplan-Meier curves).
  • Validation using The Cancer Genome Atlas (TCGA) public data.

Main Results:

  • AB007962 expression was significantly reduced in GC tissues compared to NATs (P=0.003).
  • Reduced AB007962 expression correlated with a poorer prognosis in patients with intestinal-type GC.
  • TCGA data corroborated the reduced expression and clinical significance of AB007962 in GC.

Conclusions:

  • AB007962 is significantly downregulated in gastric cancer.
  • Decreased AB007962 expression is associated with unfavorable prognosis, particularly in intestinal-type GC.
  • AB007962 shows potential as a novel prognostic biomarker for gastric cancer.
Keywords:
AB007962The Cancer Genome Atlasintestinal-type gastric cancerlong non-coding RNAprognosisreverse transcription-quantitative polymerase chain reaction

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