Evidence map›Paper›PMID 35338134›Full record

ArticleNature communications2022

Ultrastructural insight into SARS-CoV-2 entry and budding in human airway epithelium.

Andreia L Pinto, Ranjit K Rai, Jonathan C Brown, Paul Griffin, James R Edgar, Anand Shah, Aran Singanayagam, Claire Hogg, Wendy S Barclay, Clare E Futter and 1 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

30 citing papers in PubMed, 57 citations in OpenAlex.

  1. SARS-CoV-2 S assembly into virions facilitated by host ERM proteins.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Expression of angiotensin-converting enzyme 2, transmembrane serine protease 2, and sirtuin 1 proteins in lungs of different age groups.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia · 2026
    Article
  3. A survey of SARS-CoV-2 tropism.Infectious diseases & immunity · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Electron Tomography as a Tool to Study SARS-CoV-2 Morphology.International journal of molecular sciences · 2024
    Review
  9. Article
  10. Interactions of SARS-CoV-2 with Human Target Cells-A Metabolic View.International journal of molecular sciences · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. COVID-19 Biogenesis and Intracellular Transport.International journal of molecular sciences · 2023
    Review
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

11 authors at 4 institutions in 1 country.

Andreia L PintoRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK.
Ranjit K RaiRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK.
Jonathan C BrownDepartment of Infectious Disease, Imperial College London, London, W2 1PG, UK.ORCID 0000-0001-6849-3962
Paul GriffinRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK.
James R EdgarDepartment of Pathology, University of Cambridge, Cambridge, CB2 1QP, UK.ORCID 0000-0001-7903-8199
Anand ShahRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK.
Aran SinganayagamDepartment of Infectious Disease, Imperial College London, London, W2 1PG, UK.ORCID 0000-0001-9849-0033
Claire HoggRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK.ORCID 0000-0002-8368-5994
Wendy S BarclayDepartment of Infectious Disease, Imperial College London, London, W2 1PG, UK.ORCID 0000-0002-3948-0895
Clare E FutterUCL Institute of Ophthalmology, University College London, London, EC1V 9EL, UK.
Thomas BurgoyneRoyal Brompton Hospital, Guy's and St Thomas' NHS Foundation Trust, London, SW3 6NP, UK. t.burgoyne@ucl.ac.uk.ORCID 0000-0002-8428-720X
Guy's and St Thomas' NHS Foundation Trust · GBImperial College London · GBUniversity College London · GBUniversity of Cambridge · GB

Funding

Medical Research Council MR/V000098/1Medical Research Council MR/W005611/1Wellcome Trust 093445
6 · The paper itself

Abstract

Ultrastructural studies of SARS-CoV-2 infected cells are crucial to better understand the mechanisms of viral entry and budding within host cells. Here, we examined human airway epithelium infected with three different isolates of SARS-CoV-2 including the B.1.1.7 variant by transmission electron microscopy and tomography. For all isolates, the virus infected ciliated but not goblet epithelial cells. Key SARS-CoV-2 entry molecules, ACE2 and TMPRSS2, were found to be localised to the plasma membrane including microvilli but excluded from cilia. Consistently, extracellular virions were seen associated with microvilli and the apical plasma membrane but rarely with ciliary membranes. Profiles indicative of viral fusion where tomography showed that the viral membrane was continuous with the apical plasma membrane and the nucleocapsids diluted, compared with unfused virus, demonstrate that the plasma membrane is one site of entry where direct fusion releasing the nucleoprotein-encapsidated genome occurs. Intact intracellular virions were found within ciliated cells in compartments with a single membrane bearing S glycoprotein. Tomography showed concentration of nucleocapsids round the periphery of profiles strongly suggestive of viral budding into these compartments and this may explain how virions gain their S glycoprotein containing envelope.

Indexed as

COVID-19SARS-CoV-2EpitheliumHumansPeptidyl-Dipeptidase APeptidyl-Dipeptidase A

Identifiers

PMID35338134
PMCPMC8956608
OpenAlexW4220908877

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.