Evidence map›Paper›PMID 23922714›Full record

ArticlePloS one2013

Lung surfactant levels are regulated by Ig-Hepta/GPR116 by monitoring surfactant protein D.

Taku Fukuzawa, Junji Ishida, Akira Kato, Taro Ichinose, Donna Maretta Ariestanti, Tomoya Takahashi, Kunitoshi Ito, Jumpei Abe, Tomohiro Suzuki, Shigeharu Wakana and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

46 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Review
  3. Adhesion G protein-coupled receptors.Pharmacological reviews · 2026
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Pathophysiological impact of the adhesion G protein-coupled receptor family.American journal of physiology. Cell physiology · 2022
    Review
  17. Emerging roles of adhesion G protein-coupled receptors.Biochemical Society transactions · 2021
    Review
  18. Observational
  19. Review
  20. Adhesion-GPCR Gpr116 (ADGRF5) expression inhibits renal acid secretion.Proceedings of the National Academy of Sciences of the United States of America · 2020
    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

13 authors at 4 institutions in 1 country.

Taku FukuzawaDepartment of Biological Sciences, Tokyo Institute of Technology, Yokohama, Japan.
Junji Ishida
Akira Kato
Taro Ichinose
Donna Maretta Ariestanti
Tomoya Takahashi
Kunitoshi Ito
Jumpei Abe
Tomohiro Suzuki
Shigeharu Wakana
Akiyoshi Fukamizu
Nobuhiro Nakamura
Shigehisa Hirose
Tokyo Institute of Technology · JPRIKEN BioResource Research Center · JPUniversity of Tsukuba · JPToin University of Yokohama · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lung surfactant is a complex mixture of lipids and proteins, which is secreted from the alveolar type II epithelial cell and coats the surface of alveoli as a thin layer. It plays a crucial role in the prevention of alveolar collapse through its ability to reduce surface tension. Under normal conditions, surfactant homeostasis is maintained by balancing its release and the uptake by the type II cell for recycling and the internalization by alveolar macrophages for degradation. Little is known about how the surfactant pool is monitored and regulated. Here we show, by an analysis of gene-targeted mice exhibiting massive accumulation of surfactant, that Ig-Hepta/GPR116, an orphan receptor, is expressed on the type II cell and sensing the amount of surfactant by monitoring one of its protein components, surfactant protein D, and its deletion results in a pulmonary alveolar proteinosis and emphysema-like pathology. By a coexpression experiment with Sp-D and the extracellular region of Ig-Hepta/GPR116 followed by immunoprecipitation, we identified Sp-D as the ligand of Ig-Hepta/GPR116. Analyses of surfactant metabolism in Ig-Hepta(+/+) and Ig-Hepta(-/-) mice by using radioactive tracers indicated that the Ig-Hepta/GPR116 signaling system exerts attenuating effects on (i) balanced synthesis of surfactant lipids and proteins and (ii) surfactant secretion, and (iii) a stimulating effect on recycling (uptake) in response to elevated levels of Sp-D in alveolar space.

Indexed as

1,2-DipalmitoylphosphatidylcholineAnimalsbeta-GalactosidaseCell CountGene Expression Regulation, DevelopmentalGene TargetingHypertrophyImmunohistochemistryIn Situ HybridizationLigandsLungMacrophages, AlveolarMatrix Metalloproteinase 12MiceMice, TransgenicModels, Biological1,2-Dipalmitoylphosphatidylcholinebeta-GalactosidaseGpr116 protein, mouseLigandsMatrix Metalloproteinase 12Pulmonary Surfactant-Associated Protein DPulmonary SurfactantsReceptors, G-Protein-CoupledRNA, Messenger

Identifiers

PMID23922714
PMCPMC3726689
OpenAlexW2028451509

What OpenQuestion holds

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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.