Evidence map›Paper›PMID 34183650›Full record

ArticleNature communications2021

Type II alveolar cell MHCII improves respiratory viral disease outcomes while exhibiting limited antigen presentation.

Sushila A Toulmin, Chaitali Bhadiadra, Andrew J Paris, Jeffrey H Lin, Jeremy Katzen, Maria C Basil, Edward E Morrisey, G Scott Worthen, Laurence C Eisenlohr

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.3field-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

44 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
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  6. Oesophageal Epithelial Cell-Intrinsic MHCII Regulates Food Antigen-Dependent Eosinophilic Esophagitis in an IFNγ-Dependent Manner.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
    Article
  7. Optimal murine CD4Nature communications · 2026
    Article
  8. Article
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  10. Trained immunity in lung injury and repair.Frontiers in immunology · 2026
    Review
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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

9 authors at 3 institutions in 1 country.

Sushila A ToulminDivision of Protective Immunity, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA. sushila.toulmin@pennmedicine.upenn.edu.ORCID http://orcid.org/0000-0003-1743-1619
Chaitali BhadiadraDivision of Protective Immunity, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Andrew J ParisDivision of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-9808-071X
Jeffrey H LinPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.ORCID http://orcid.org/0000-0002-2518-6863
Jeremy KatzenDivision of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
Maria C BasilDepartment of Medicine, Penn-CHOP Lung Biology Institute, University of Pennsylvania, Philadelphia, PA, USA.
Edward E MorriseyDepartment of Medicine, Penn-CHOP Lung Biology Institute, University of Pennsylvania, Philadelphia, PA, USA.
G Scott WorthenDepartment of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
Laurence C EisenlohrDivision of Protective Immunity, Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA. eisenlc@pennmedicine.upenn.edu.ORCID http://orcid.org/0000-0002-8475-7910
Children's Hospital of Philadelphia · USUniversity of Pennsylvania · USCalifornia Institute for Regenerative Medicine · US

Funding

TRAINING IN PULMONARY IMMUNOLOGYT32HL007586 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI MEYER, NUALA JENNINGS · 1985 to 2025
$8.8M
TRAINING IN VIROLOGYT32AI007324 · NIAID · WISTAR INSTITUTE · PI Paul Bates, Matthew D. Weitzman · 1989 to 2026
$6.8M
Alternative MHCII Processing of Influenza Virus ProteinsR01AI113286 · NIAID · THOMAS JEFFERSON UNIVERSITY · PI EISENLOHR, LAURENCE CRANE · 2014 to 2018
$3.0M
Understanding how alveolar epithelial cell stress drives aberrant repair in interstitial lung diseaseK08HL150226 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI KATZEN, JEREMY BINDER · 2020 to 2024
$840k
The Function of MHC Class II on Lung Type II Alveolar CellsF30HL145907 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI TOULMIN, SUSHILA · 2020 to 2021
$41k
NHLBI NIH HHS F30 HL145907NHLBI NIH HHS K08 HL150226NHLBI NIH HHS T32 HL007586NIAID NIH HHS R01 AI113286NIAID NIH HHS T32 AI007324
6 · The paper itself

Abstract

Type II alveolar cells (AT2s) are critical for basic respiratory homeostasis and tissue repair after lung injury. Prior studies indicate that AT2s also express major histocompatibility complex class II (MHCII) molecules, but how MHCII expression by AT2s is regulated and how it contributes to host defense remain unclear. Here we show that AT2s express high levels of MHCII independent of conventional inflammatory stimuli, and that selective loss of MHCII from AT2s in mice results in modest worsening of respiratory virus disease following influenza and Sendai virus infections. We also find that AT2s exhibit MHCII presentation capacity that is substantially limited compared to professional antigen presenting cells. The combination of constitutive MHCII expression and restrained antigen presentation may position AT2s to contribute to lung adaptive immune responses in a measured fashion, without over-amplifying damaging inflammation.

Indexed as

Alveolar Epithelial CellsAnimalsAntigen PresentationAntigen-Presenting CellsCell LineDogsHistocompatibility Antigens Class IIInflammationInfluenza A Virus, H1N1 SubtypeLungMacaca mulattaMadin Darby Canine Kidney CellsMiceMice, Inbred BALB CMice, Inbred C57BLMice, KnockoutHistocompatibility Antigens Class II

Identifiers

PMID34183650
PMCPMC8239023
OpenAlexW3176570718

What OpenQuestion holds

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LicenceCC BY
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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.