Evidence map›Paper›PMID 40301369›Full record

ArticleNPJ vaccines2025

Controlling reactogenicity while preserving immunogenicity from a self-amplifying RNA vaccine by modulating nucleocytoplasmic transport.

Jason A Wojcechowskyj, Robyn M Jong, Imre Mäger, Britta Flach, Paul V Munson, Progya P Mukherjee, Barbara Mertins, Katherine R Barcay, Thomas Folliard

Erratum issuedAbstract read
In one paragraph

Article in NPJ vaccines, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. mRNA Vaccines for Influenza: Hope for a Universal Vaccine?BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  4. Review
  5. Review
  6. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Jason A WojcechowskyjExcepGen Inc. Emeryville, San Francisco, CA, USA. jwojcechowskyj@gmail.com.
Robyn M JongExcepGen Inc. Emeryville, San Francisco, CA, USA.
Imre MägerExcepGen Inc. Emeryville, San Francisco, CA, USA.
Britta FlachExcepGen Inc. Emeryville, San Francisco, CA, USA.
Paul V MunsonExcepGen Inc. Emeryville, San Francisco, CA, USA.
Progya P MukherjeeExcepGen Inc. Emeryville, San Francisco, CA, USA.
Barbara MertinsExcepGen Inc. Emeryville, San Francisco, CA, USA.
Katherine R BarcayExcepGen Inc. Emeryville, San Francisco, CA, USA.
Thomas FolliardExcepGen Inc. Emeryville, San Francisco, CA, USA. thomas.folliard@excepgen.com.

Funding

BD FACSAria II Flow CytometerS10RR028962 · NCRR · J. DAVID GLADSTONE INSTITUTES · PI CAVROIS, MARIELLE · 2011 to 2011
$544k
NCRR NIH HHS S10 RR028962
6 · The paper itself

Abstract

Self-amplifying RNA (saRNA)-based vaccines have emerged as a potent and durable RNA vaccine platform relative to first generation mRNA vaccines. However, RNA vaccine platforms trigger undesirable side effects at protective doses, underscoring the need for improved tolerability. To address this, we leveraged the Cardiovirus leader protein, which is well-characterized to dampen host innate signaling by modulating nucleocytoplasmic transport (NCT). Co-administration of a leader-protein-encoding mRNA (which we have named "RNAx") delivered alongside vaccine cargo saRNA reduced interferon production while enhancing Influenza hemagglutinin (HA) expression in human primary cells and murine models. RNAx potently decreased serum biomarkers of reactogenicity after immunizations with an HA-expressing saRNA-LNP vaccine while maintaining the magnitude of the antibody and cellular response. RNAx also consistently enhanced binding antibody titers after a single injection and in some conditions enhanced binding antibody and neutralization titers post-boost. These findings support RNAx as a promising platform approach for improving tolerability of saRNA-LNP vaccines while preserving or enhancing immunogenicity.

Identifiers

PMID40301369
PMCPMC12041602

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.