Evidence map›Paper›PMID 33546258›Full record

ArticleCells2021

Lung Mast Cells Have a High Constitutive Expression of Carboxypeptidase A3 mRNA That Is Independent from Granule-Stored CPA3.

Premkumar Siddhuraj, Carl-Magnus Clausson, Caroline Sanden, Manar Alyamani, Mohammad Kadivar, Jan Marsal, Joanna Wallengren, Leif Bjermer, Jonas S Erjefält

Open access · goldAbstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Fibroblast-Mediated Macrophage Recruitment Supports Acute Wound Healing.The Journal of investigative dermatology · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Mast Cell and Basophil Granule Proteases -Frontiers in immunology · 2022
    Review
  19. Article
  20. The Evolutionary History of theInternational journal of molecular sciences · 2021
    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

9 authors at 1 institution in 1 country.

Premkumar SiddhurajDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.
Carl-Magnus ClaussonDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.ORCID 0000-0002-9306-725X
Caroline SandenDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.ORCID 0000-0003-4836-0892
Manar AlyamaniDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.ORCID 0000-0003-2551-9741
Mohammad KadivarDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.ORCID 0000-0003-1499-191X
Jan MarsalDepartment of Gastroenterology, Lund University, Skane University Hospital, 221 85 Lund, Sweden.ORCID 0000-0003-4808-0014
Joanna WallengrenDepartment of Dermatology, Lund University Skane University Hospital, 221 85 Lund, Sweden.
Leif BjermerDepartment of Allergology and Respiratory Medicine, Lund University, Skane University Hospital, 221 85 Lund, Sweden.
Jonas S ErjefältDepartment of Experimental Medical Sciences, Lund University, 221 84 Lund, Sweden.ORCID 0000-0002-6716-3010
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mast cell granule metalloprotease CPA3 is proposed to have important tissue homeostatic functions. However, the basal CPA3 mRNA and protein expression among mast cell populations has remained poorly investigated. Using a novel histology-based methodology that yields quantitative data on mRNA and protein expression at a single-cell level, the present study maps CPA3 mRNA and protein throughout the MCT and MCTC populations in healthy skin, gut and lung tissues. MCTC cells had both a higher frequency of CPA3 protein-containing cells and a higher protein-staining intensity than the MCT population. Among the tissues, skin MCs had highest CPA3 protein intensity. The expression pattern at the mRNA level was reversed. Lung mast cells had the highest mean CPA3 mRNA staining. Intriguingly, the large alveolar MCT population, that lack CPA3 protein, had uniquely high CPA3 mRNA intensity. A broader multi-tissue RNA analysis confirmed the uniquely high CPA3 mRNA quantities in the lung and corroborated the dissociation between chymase and CPA3 at the mRNA level. Taken together, our novel data suggest a hitherto underestimated contribution of mucosal-like MCT to baseline CPA3 mRNA production. The functional consequence of this high constitutive expression now reveals an important area for further research.

Indexed as

CarboxypeptidasesChymasesHumansMast CellsRNA, MessengerTryptasesCarboxypeptidasesChymasesRNA, MessengerTryptasescarboxypeptidase A3chymasegutlungmast cellsmRNAskintryptase

Identifiers

PMID33546258
PMCPMC7913381
OpenAlexW3127225431

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.