Related Experiment Video

Updated: Apr 19, 2026

Using RNA-interference to Investigate the Innate Immune Response in Mouse Macrophages
12:47

Using RNA-interference to Investigate the Innate Immune Response in Mouse Macrophages

Published on: November 3, 2014

12.3K

Hijacking innate immunity to enhance mRNA therapeutics by blocking IFN-P-body-XRN1 axis-mediated degradation

Tinghong Zhang1,2, Xing Peng2, Jinling Qin2,3

  • 1State Key Laboratory of Respiratory Disease, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.

Nature Communications
|April 17, 2026
PubMed

Insights

Modified in vitro-transcribed (IVT) mRNA stability is limited by the type I interferon pathway. Suppressing this signaling with factors like SOCS1 enhances mRNA performance for therapeutic applications.

Area of Science:

  • Molecular Biology
  • Immunology
  • Biochemistry

Background:

  • Innate immune activation significantly impacts unmodified in vitro-transcribed (IVT) mRNA degradation.
  • Mechanisms regulating the degradation of modified IVT mRNAs are not well understood.

Purpose of the Study:

  • To identify factors that enhance the performance of modified IVT mRNAs.
  • To elucidate the degradation pathways and regulatory mechanisms of modified IVT mRNAs.

Main Methods:

  • Screening of viral and host immune suppressors.
  • Multi-omics analyses (including transcriptomics and proteomics).
  • Functional assays in cell lines, organoids, and murine models.

Main Results:

  • Thirteen factors enhancing mRNA performance were identified, notably SOCS1 and coronaviral M protein.
  • Pseudouridine-modified IVT mRNA exhibits rapid deadenylation and 3'-5' decay, similar to endogenous mRNA.
  • IVT mRNA activates IFN-β signaling, leading to P-body formation and XRN1-mediated degradation.
  • SOCS1 and M protein suppress IFN signaling, significantly improving mRNA expression in various systems and disease models.

Conclusions:

  • A type I interferon-P-body-XRN1 signaling axis limits modified IVT mRNA stability.
  • Targeting this axis offers a strategy to enhance the stability and efficacy of mRNA therapeutics.

More Related Videos

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production08:32

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production

Published on: March 2, 2014

11.0K
High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes10:00

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes

Published on: March 24, 2015

13.9K

Related Concept Videos

Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
47
Experimental RNAi02:15

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
8.4K
RNA Interference01:23

RNA Interference

RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
29.0K
RNA Interference01:23

RNA Interference

7.9K
NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
10.9K
Types of RNA01:20

Types of RNA

Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
16.8K