Evidence map›Paper›PMID 17213284›Full record

ArticleBlood2007

Involvement of Fyn kinase in Kit and integrin-mediated Rac activation, cytoskeletal reorganization, and chemotaxis of mast cells.

Lionel A Samayawardhena, Reuben Kapur, Andrew W B Craig

Open access · greenAbstract readComparative Study
In one paragraph

Article in Blood, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. The stem cell factor (SCF)/c-KIT signalling in testis and prostate cancer.Journal of cell communication and signaling · 2017
    Article
  9. Signal transduction and chemotaxis in mast cells.European journal of pharmacology · 2016
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Distinct roles for N-Cadherin linked c-Src and fyn kinases in lens development.Developmental dynamics : an official publication of the American Association of Anatomists · 2013
    Article
  17. Article
  18. Article
  19. Article
  20. 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

3 authors at 1 institution in 1 country.

Lionel A SamayawardhenaDepartment of Biochemistry, Queen's University, Kingston, Ontario, Canada.
Reuben Kapur
Andrew W B Craig
Queen's University · CA

Funding

Novel Mechanisms of C-Kit Regulation in Mast CellsR01HL077177 · NHLBI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KAPUR, REUBEN · 2006 to 2016
$3.0M
Mechanisms of adhesion and growth control in stem cellsR01HL075816 · NHLBI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KAPUR, REUBEN · 2004 to 2010
$2.3M
NHLBI NIH HHS R01 HL 075816NHLBI NIH HHS R01 HL075816NHLBI NIH HHS R01 HL077177
6 · The paper itself

Abstract

Kit receptor and its ligand stem cell factor (SCF) are critical regulators of mast cell production, proliferation, degranulation, and chemotaxis. In this study, we investigated how Fyn kinase regulates chemotaxis of mast cells toward SCF. On beta1-integrin engagement, Fyn-deficient (fyn(-/-)) mast cells displayed a striking defect in cell spreading and lamellipodia formation compared to wild-type mast cells. The hematopoietic-specific Src family kinases (Lyn/Fgr/Hck) were not required for initial SCF-induced cell spreading. Reduced SCF-induced activation of Rac1 and Rac2 GTPases, p38 mitogen-activated protein kinase, and filamentous actin polymerization was observed in fyn(-/-) mast cells compared to wild-type mast cells. Retroviral-mediated expression of Fyn, constitutively active forms of Rac2 or phosphatidylinositol 3-kinase (PI3K) in fyn(-/-) mast cells rescued defects in SCF-induced cell polarization and chemotaxis of Fyn-deficient mast cells. Thus, we conclude that Fyn kinase plays a unique role upstream of PI3K and Rac GTPases to promote the reorganization of the cytoskeleton during mast cell spreading and chemotaxis.

Indexed as

Actin CytoskeletonAnimalsCell DegranulationCells, CulturedChemotaxisEnzyme ActivationIntegrinsMast CellsMiceMice, KnockoutPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-fynProto-Oncogene Proteins c-kitrac1 GTP-Binding ProteinRAC2 GTP-Binding Proteinrac GTP-Binding ProteinsFyn protein, mouseIntegrinsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-fynProto-Oncogene Proteins c-kitrac1 GTP-Binding ProteinRAC2 GTP-Binding Proteinrac GTP-Binding Proteinssrc-Family KinasesStem Cell Factor

Identifiers

PMID17213284
PMCPMC1874564
OpenAlexW2093952640

What Socratic holds

Textmetadata
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 Socratic graph.