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Systematic study of human long intergenic non-coding RNAs and their impact on cancer

Liang Sun1, Haitao Luo, Qi Liao

  • 1College of Computer Science and Technology, Jilin University, Changchun 130012, China.

Science China. Life Sciences
|March 19, 2013
PubMed

Insights

Researchers identified over 3000 long intergenic non-coding RNAs (lincRNAs), including many novel ones, and predicted their functions. Twelve lincRNAs were found to be key players in lung cancer development.

Area of Science:

  • Genomics
  • Molecular Biology
  • Bioinformatics

Background:

  • Long intergenic non-coding RNAs (lincRNAs) play crucial roles, but large-scale identification and functional prediction remain challenging.
  • Understanding lincRNA functions is vital due to their involvement in complex diseases like cancer.
  • Existing knowledge on cancer-associated lincRNAs is limited, highlighting the need for comprehensive studies.

Purpose of the Study:

  • To identify a large number of human lincRNAs and predict their functions.
  • To investigate the role of lincRNAs in lung cancer development.
  • To develop a model explaining the relationship between lincRNAs and lung tumorigenesis.

Main Methods:

  • Combined RNA-Seq data with chromatin-state maps and expressed sequence tags for lincRNA identification.
  • Utilized a coding-non-coding gene co-expression network for functional prediction of lincRNAs.
  • Developed a bioinformatics approach to model lincRNA involvement in lung cancer.

Main Results:

  • Successfully identified over 3000 human lincRNAs, with most being novel discoveries.
  • Predicted functions for 105 lincRNAs.
  • Identified 12 lincRNAs as potential key regulators in lung tumorigenesis.

Conclusions:

  • This study presents a pioneering, large-scale identification and functional prediction of human lincRNAs.
  • The findings provide insights into the subtle relationships between lincRNAs and lung cancer.
  • The identified lincRNAs represent potential targets for future lung cancer research and therapeutic strategies.

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