Related Experiment Video
Updated: Jul 31, 2026

RNA Pull-down Procedure to Identify RNA Targets of a Long Non-coding RNA
Published on: April 10, 2018
Identification and Functional Inference for Tumor-Associated Long Non-Coding RNA
Abstract:
Gastric cancer is one of the top leading causes of cancer mortality worldwide especially in China. In recent years, some lncRNAs are discovered to be dysregulated in many cancers. The study on long non-coding RNAs (lncRNAs) relationship with cancers has attracted increasing attention. The molecular mechanism of gastric cancer remains largely unclear factors, especially for lncRNAs. Experiments are feasible to obtain related information, however, experimental identification of cancer-related lncRNAs usually possesses high time complexity and high cost. In this paper, a computational method is proposed to determine the relationship between lncRNA and gastric cancer by reusing the exon-based array of gastric cancer. One specific lncRNAs LINC00365 and its target differentially expressed genes whose products are predicted as blood, urine, or salvia-excretory are identified to be candidates for a combined biomarker for gastric cancer. Further biological function and molecular mechanism of the gastric cancer related lncRNAs and coding gene biomarkers are inferred in terms of multi-source biological knowledge.
Insights
This study introduces a computational method to identify long non-coding RNAs (lncRNAs) linked to gastric cancer. It proposes LINC00365 as a potential biomarker for early detection, aiding in understanding gastric cancer mechanisms.
Area of Science:
- Oncology
- Genomics
- Bioinformatics
Background:
- Gastric cancer is a leading cause of cancer mortality globally, particularly in China.
- The role of long non-coding RNAs (lncRNAs) in gastric cancer pathogenesis is increasingly recognized but not fully understood.
- Experimental methods for identifying cancer-related lncRNAs are time-consuming and costly.
Purpose of the Study:
- To develop a computational approach for identifying gastric cancer-associated lncRNAs.
- To identify specific lncRNAs and their target genes as potential biomarkers for gastric cancer.
- To explore the biological functions and molecular mechanisms of identified lncRNAs and genes in gastric cancer.
Main Methods:
- A computational method was developed to analyze exon-based array data for gastric cancer.
- The method reused existing gastric cancer data to identify dysregulated lncRNAs.
- Differentially expressed genes targeted by identified lncRNAs were analyzed for potential biomarker utility.
Main Results:
- A specific long non-coding RNA, LINC00365, was identified as a candidate biomarker for gastric cancer.
- Target genes of LINC00365, with products excreted in blood, urine, or saliva, were identified.
- These findings suggest a potential combined biomarker for gastric cancer detection.
Conclusions:
- The proposed computational method offers an efficient alternative to experimental approaches for identifying cancer-related lncRNAs.
- LINC00365 and its associated excretory target genes show promise as a novel combined biomarker for gastric cancer.
- Further investigation into the biological functions of these biomarkers can enhance understanding of gastric cancer molecular mechanisms.
Related Concept Videos
Non-LTR Retrotransposons
lncRNA - Long Non-coding RNAs
lncRNA - Long Non-coding RNAs

