Cited by 91Protease and Inhibitor MechanismsNeutrophil, Myeloperoxidase and Oxidative MechanismsBiomarkers in Disease Mechanisms

A Review of Alpha-1 Antitrypsin Binding Partners for Immune Regulation and Potential Therapeutic Application

Open access
O’Brien, Michael E., Murray, Grace, Gogoi, Debananda, Yusuf, Azeez, McCarthy, Cormac, Wormald, Mark R., Casey, Michelle, Gabillard-Lefort, Claudie +2 more·2022·International Journal of Molecular Sciences

Abstract

Alpha-1 antitrypsin (AAT) is the canonical serine protease inhibitor of neutrophil-derived proteases and can modulate innate immune mechanisms through its anti-inflammatory activities mediated by a broad spectrum of protein, cytokine, and cell surface interactions. AAT contains a reactive methionine residue that is critical for its protease-specific binding capacity, whereby AAT entraps the protease on cleavage of its reactive centre loop, neutralises its activity by key changes in its tertiary structure, and permits removal of the AAT-protease complex from the circulation. Recently, however, the immunomodulatory role of AAT has come increasingly to the fore with several prominent studies focused on lipid or protein-protein interactions that are predominantly mediated through electrostatic, glycan, or hydrophobic potential binding sites. The aim of this review was to investigate the spectrum of AAT molecular interactions, with newer studies supporting a potential therapeutic paradigm for AAT augmentation therapy in disorders in which a chronic immune response is strongly linked.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.3390/ijms23052441

Cites

191 of 191 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • SERPINA1 has anti-inflammatory properties, especially linked to neutrophils (by inhibiting neutrophil elastase) and is known to protect from tissue damage.

    “SERPINA1 has anti-inflammatory properties, especially linked to neutrophils (by inhibiting neutrophil elastase) and is known to protect from tissue damage22.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

1 of the 192 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
O’Brien, M. E., Murray, G., Gogoi, D., Yusuf, A., McCarthy, C., Wormald, M. R., Casey, M., Gabillard-Lefort, C., McElvaney, N. G., & Reeves, E. P.
Affiliations
  • Royal College of Surgeons in Ireland (IE)
  • University of Oxford (GB)
Corresponding author
Reeves, Emer P.
Venue
International Journal of Molecular Sciences
Publisher
MDPI AG
Published
2022-02-23
Volume
23
Issue
5
Pages
2441
ISSN
1422-0067 (ISSN-L)
OpenAlex
W4212904005
Cited by
91
References
192
Citations by year
2026: 24 · 2025: 25 · 2024: 25 · 2023: 13 · 2022: 4
FWCI
2.02
Type
journal article
Language
en
Open access
Locations
  • International Journal of Molecular Sciences (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Lenus, The Irish Health Repository (Dr Steevens Hospital Library) (submittedVersion, cc-by)
Funders
US Alpha-1 Foundation (Grant # 615848)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Protease and Inhibitor Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
  • Life Sciences › Immunology and Microbiology › Immunology › Biomarkers in Disease Mechanisms
Keywords
alpha-1-antitrypsin, serine protease inhibitors, neutrophil proteases, reactive center loop, protein-protein interaction, cytokine binding, glycan binding, hydrophobic binding site, innate immunity, anti-inflammatory activity, immunomodulation
MeSH terms
Protein Domains, COVID-19, SARS-CoV-2, alpha 1-Antitrypsin, Apolipoproteins, Binding Sites, Complement System Proteins, Glycosylation, Humans, Mutation, Protein Binding, Cytokines, alpha 1-Antitrypsin Deficiency, Caspases

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review