Evidence map›Paper›PMID 38075874›Full record

ArticleFrontiers in microbiology2023

SARS-CoV-2 omicron BA.5 and XBB variants have increased neurotropic potential over BA.1 in K18-hACE2 mice and human brain organoids.

Romal Stewart, Kexin Yan, Sevannah A Ellis, Cameron R Bishop, Troy Dumenil, Bing Tang, Wilson Nguyen, Thibaut Larcher, Rhys Parry, Julian De Jun Sng and 6 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in microbiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.2field-weighted citation impact, top 2% of its field
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

25 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
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  6. Neuroimmune pathophysiology of long COVID.Psychiatry and clinical neurosciences · 2025
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  12. iPSC-derived human cortical organoids display profound alterations of cellular homeostasis following SARS-CoV-2 infection and Spike protein exposure.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  13. Article
  14. Review
  15. SARS-CoV-2 XBB.1.5 infects wild-type C57BL/6 mice and induces a protective CD4Frontiers in cellular and infection microbiology · 2025
    Article
  16. Evolution of Zika virus inVirus evolution · 2025
    Article
  17. Article
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  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 4 institutions in 2 countries.

Romal Stewart *QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Kexin Yan *QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Sevannah A Ellis *Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australia.
Cameron R Bishop *QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Troy Dumenil *QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Bing TangQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Wilson NguyenQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Thibaut LarcherINRAE, Oniris, PAnTher, APEX, Nantes, France.
Rhys ParrySchool of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD, Australia.
Julian De Jun SngSchool of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD, Australia.
Alexander A KhromykhSchool of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD, Australia.
Robert K P SullivanClem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australia.
Mary LorQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Frédéric A MeunierClem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australia.
Daniel J RawleQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
Andreas SuhrbierQIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia.
QIMR Berghofer Medical Research Institute · AUThe University of Queensland · AUAustralian e-Health Research Centre · AUInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The reduced pathogenicity of the omicron BA.1 sub-lineage compared to earlier variants is well described, although whether such attenuation is retained for later variants like BA.5 and XBB remains controversial. We show that BA.5 and XBB isolates were significantly more pathogenic in K18-hACE2 mice than a BA.1 isolate, showing increased neurotropic potential, resulting in fulminant brain infection and mortality, similar to that seen for original ancestral isolates. BA.5 also infected human cortical brain organoids to a greater extent than the BA.1 and original ancestral isolates. In the brains of mice, neurons were the main target of infection, and in human organoids neuronal progenitor cells and immature neurons were infected. The results herein suggest that evolving omicron variants may have increasing neurotropic potential.

Indexed as

BA.5brainK18-hACE2omicronorganoidSARS-CoV-2XBB

Identifiers

PMID38075874
PMCPMC10706942
OpenAlexW4388942613

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.