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lncRNA - Long Non-coding RNAs02:39

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In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
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Related Experiment Video

Updated: Feb 3, 2026

A Customizable Protocol for String Assembly gRNA Cloning STAgR
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STRring up Cancer with lncRNA.

Jodi Bubenik1, Maurice S Swanson1

  • 1Department of Molecular Genetics and Microbiology, Center for NeuroGenetics and the Genetics Institute, University of Florida College of Medicine, Gainesville, FL 32610, USA.

Molecular Cell
|November 3, 2018
PubMed
Summary

Researchers discovered a new long non-coding RNA (lncRNA) called PNCTR. This PNCTR traps a splicing factor, PTBP1, affecting cancer cell development.

Area of Science:

  • Molecular biology
  • Cancer research
  • RNA biology

Background:

  • Long non-coding RNAs (lncRNAs) play crucial roles in gene regulation.
  • RNA splicing factors are essential for proper gene expression.
  • Aberrant gene expression is a hallmark of cancer cell development.

Purpose of the Study:

  • To identify novel lncRNAs involved in cancer cell development.
  • To elucidate the mechanism by which PNCTR affects RNA splicing factor localization.
  • To investigate the link between PNCTR-mediated PTBP1 sequestration and cancer progression.

Main Methods:

  • Identification and characterization of a novel lncRNA (PNCTR).
  • Analysis of short tandem repeats (STRs) within PNCTR.
  • Investigation of PTBP1 localization and RNA binding activity.

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  • Assessment of PNCTR's role in cancer cell proliferation and development.

    • Main Results:

    • A novel lncRNA, PNCTR, was identified.
    • PNCTR contains short tandem repeats that bind to the RNA splicing factor PTBP1.
    • PNCTR sequesters PTBP1 in the perinucleolar compartment.
    • This sequestration is linked to cancer cell development and proliferation.

    Conclusions:

    • PNCTR is a novel lncRNA with a role in cancer cell development.
    • PNCTR-mediated sequestration of PTBP1 influences cancer progression.
    • Targeting PNCTR may offer a new therapeutic strategy for cancer treatment.