Evidence map›Paper›PMID 22525268›Full record

ArticleOncogene2013

The NF2 tumor suppressor regulates microtubule-based vesicle trafficking via a novel Rac, MLK and p38(SAPK) pathway.

R F Hennigan, C A Moon, L M Parysek, K R Monk, G Morfini, S Berth, S Brady, N Ratner

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

16 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Childhood neurofibromatosis type 2 (NF2) and related disorders: from bench to bedside and biologically targeted therapies.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2016
    Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Development of drug treatments for neurofibromatosis type 2-associated vestibular schwannoma.Current opinion in otolaryngology & head and neck surgery · 2012
    Review
  16. Onco-Golgi: Is Fragmentation a Gate to Cancer Progression?Biochemistry & molecular biology journal
    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

8 authors at 5 institutions in 1 country.

R F HenniganDivision of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA. Robert.Hennigan@cchmc.org
C A Moon
L M Parysek
K R Monk
G Morfini
S Berth
S Brady
N Ratner
Marine Biological Laboratory · USCincinnati Children's Hospital Medical Center · USUniversity of Cincinnati · USUniversity of Illinois Chicago · USWashington University in St. Louis · US

Funding

Training Program in Basic NeuroscienceT32MH020016 · NIMH · STANFORD UNIVERSITY · PI Justin L Gardner, Merritt C Maduke · 1997 to 2026
$16.2M
MOLECULAR MECHANISMS OF AXONAL TRANSPORTR01NS023868 · NINDS · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI BRADY, SCOTT THOMAS · 1986 to 2010
$3.7M
Schwann Cells in Neurofibromatosis Type 2 (NF2)R01CA118032 · NCI · CINCINNATI CHILDRENS HOSP MED CTR · PI RATNER, NANCY · 2007 to 2011
$1.4M
NCI NIH HHS R01 CA118032NIMH NIH HHS T32 MH020016NINDS NIH HHS R01 NS023868NINDS NIH HHS R01 NS23868
6 · The paper itself

Abstract

Neurofibromatosis type 2 patients develop schwannomas, meningiomas and ependymomas resulting from mutations in the tumor suppressor gene, NF2, encoding a membrane-cytoskeleton adapter protein called merlin. Merlin regulates contact inhibition of growth and controls the availability of growth factor receptors at the cell surface. We tested if microtubule-based vesicular trafficking might be a mechanism by which merlin acts. We found that schwannoma cells, containing merlin mutations and constitutive activation of the Rho/Rac family of GTPases, had decreased intracellular vesicular trafficking relative to normal human Schwann cells. In Nf2-/- mouse Schwann (SC4) cells, re-expression of merlin as well as inhibition of Rac or its effector kinases, MLK and p38(SAPK), each increased the velocity of Rab6 positive exocytic vesicles. Conversely, an activated Rac mutant decreased Rab6 vesicle velocity. Vesicle motility assays in isolated squid axoplasm further demonstrated that both mutant merlin and active Rac specifically reduce anterograde microtubule-based transport of vesicles dependent upon the activity of p38(SAPK) kinase. Taken together, our data suggest loss of merlin results in the Rac-dependent decrease of anterograde trafficking of exocytic vesicles, representing a possible mechanism controlling the concentration of growth factor receptors at the cell surface.

Indexed as

AnimalsCell LineDecapodiformesGenes, Neurofibromatosis 2HumansMAP Kinase Kinase KinasesMicrotubulesMutationNeurilemmomaNeurofibromin 2p38 Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-aktMAP Kinase Kinase KinasesMLK-like mitogen-activated protein triple kinaseNeurofibromin 2p38 Mitogen-Activated Protein KinasesProto-Oncogene Proteins c-akt

Identifiers

PMID22525268
PMCPMC4260777
OpenAlexW2008577888

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.