Evidence map›Paper›PMID 22701116›Full record

ArticleFrontiers in immunology2012

An Insight into the Diverse Roles of Surfactant Proteins, SP-A and SP-D in Innate and Adaptive Immunity.

Annapurna Nayak, Eswari Dodagatta-Marri, Anthony George Tsolaki, Uday Kishore

Open access · goldAbstract read
In one paragraph

Article in Frontiers in immunology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 2 pooled it
9.0field-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

117 citing papers in PubMed, 2 syntheses or guidelines pooled it, 220 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Frontiers in immunology · 2026
    Article
  9. The Emerging Role of METTL3 in Lung Diseases.International journal of molecular sciences · 2025
    Review
  10. Special Issue "Viral Infections and Host Immune Responses".International journal of molecular sciences · 2025
    Article
  11. Article
  12. Review
  13. Article
  14. Surfactant protein levels and genetic variants as biomarkers for COVID-19 severity in children.American journal of physiology. Lung cellular and molecular physiology · 2025
    Article
  15. Adaptation and conservation of CL-10/11 in avian lungs: implications for their role in pulmonary innate immune protection.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  16. Article
  17. Collectins and Ficolins.Advances in experimental medicine and biology · 2025
    Review
  18. Article
  19. Review
  20. Review

57 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

Annapurna NayakCentre for Infection, Immunity and Disease Mechanisms, School of Health Sciences and Social Care, Brunel University London, UK.
Eswari Dodagatta-Marri
Anthony George Tsolaki
Uday Kishore
Brunel University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Surfactant proteins SP-A and SP-D are hydrophilic, collagen-containing calcium-dependent lectins, which appear to have a range of innate immune functions at pulmonary as well as extrapulmonary sites. These proteins bind to target ligands on pathogens, allergens, and apoptotic cells, via C-terminal homotrimeric carbohydrate recognition domains, while the collagen region brings about the effector functions via its interaction with cell surface receptors. SP-A and SP-D deal with various pathogens, using a range of innate immune mechanisms such as agglutination/aggregation, enhancement of phagocytosis, and killing mechanisms by phagocytic cells and direct growth inhibition. SP-A and SP-D have also been shown to be involved in the control of pulmonary inflammation including allergy and asthma. Emerging evidence suggest that SP-A and SP-D are capable of linking innate immunity with adaptive immunity that includes modulation of dendritic cell function and helper T cell polarization. This review enumerates immunological properties of SP-A and SP-D inside and outside lungs and discusses their importance in human health and disease.

Indexed as

hypersensitivityinfectioninnate immunitymacrophagepattern recognition receptorsurfactant

Identifiers

PMID22701116
PMCPMC3369187
OpenAlexW2130141767

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.