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Related Experiment Video

Updated: May 31, 2026

MISSION esiRNA for RNAi Screening in Mammalian Cells
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MISSION esiRNA for RNAi Screening in Mammalian Cells

Published on: May 12, 2010

Five-step process for screening antisense compounds for efficacy: gene target IL-12Rb2.

Nikki B Marshall1, Laura L Hauck, Dan V Mourich

  • 1Department of Microbiology, Oregon State University, Corvallis, OR, USA. marshaln@onid.orst.edu

Methods in Molecular Biology (Clifton, N.J.)
|July 13, 2011
PubMed
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This study introduces a five-step method using phosphorodiamidate morpholino oligomers (P-PMO) to inhibit gene expression by targeting pre-mRNA splicing, offering a novel approach for antisense drug development.

Area of Science:

  • Molecular Biology
  • Gene Expression Regulation
  • Antisense Technology

Background:

  • Antisense technologies are established for gene expression inhibition, typically targeting the AUG start codon.
  • Emerging strategies focus on disrupting pre-mRNA splicing for antisense effects.
  • This approach allows for a positive read-out via novel splice products and potential functional alterations.

Purpose of the Study:

  • To describe a five-step process for selecting optimal antisense compounds.
  • To evaluate phosphorodiamidate morpholino oligomers conjugated to arginine-rich cell penetrating peptides (P-PMO) for altering IL-12Rb2 expression.
  • To discuss the significance of targeting exons with base pair counts divisible by 3.

Main Methods:

  • Reverse transcription polymerase chain reaction (RT-PCR) to detect mRNA splice products.

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  • Protein expression analysis.
  • Protein function evaluation.
  • Cellular viability assays.
  • Efficacy validation of candidate compounds.

    • Main Results:

    • A five-step screening process was established for P-PMO selection.
    • The method facilitates the identification of antisense compounds that alter gene expression via pre-mRNA splicing.
    • The study highlights the importance of exon targeting in antisense compound design.

    Conclusions:

    • The described five-step process is effective for selecting candidate P-PMO compounds.
    • This methodology can be broadly applied to the design and screening of antisense compounds for various gene targets.
    • Targeting pre-mRNA splicing offers a robust strategy for gene expression modulation.