Evidence map›Paper›PMID 21373966›Full record

ArticleJournal of neuro-oncology2011

L1 stimulation of human glioma cell motility correlates with FAK activation.

Muhua Yang, Yupei Li, Kalyani Chilukuri, Owen A Brady, Magdy I Boulos, John C Kappes, Deni S Galileo

Open access · greenAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 9% 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, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. ADAM10 Plasma and CSF Levels Are Increased in Mild Alzheimer's Disease.International journal of molecular sciences · 2021
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. 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

7 authors at 3 institutions in 1 country.

Muhua YangDepartment of Biological Sciences, University of Delaware, Wolf Hall, Newark, DE 19716, USA. yangmugua@gmail.com
Yupei Li
Kalyani Chilukuri
Owen A Brady
Magdy I Boulos
John C Kappes
Deni S Galileo
University of Delaware · USChristiana Care Health System · USUniversity of Alabama at Birmingham · US

Funding

VOLUMETRIC BREAST DENSITY ESTIMATION USING BREAST SURFACE RECONSTRUCTEDP20RR016472 · NCRR · UNIVERSITY OF DELAWARE · PI STANHOPE, STEVEN J. · 2001 to 2011
$37.6M
Mucosal HIV and Immunobiology CenterR24DK064400 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SMITH, PHILLIP D · 2003 to 2012
$4.8M
NCRR NIH HHS 2 P20 RR016472NCRR NIH HHS P20 RR016472NIDDK NIH HHS R24 DK064400NIDDK NIH HHS R24DK64400
6 · The paper itself

Abstract

The neural adhesion/recognition protein L1 (L1CAM; CD171) has been shown or implicated to function in stimulation of cell motility in several cancer types, including high-grade gliomas. Our previous work demonstrated the expression and function of L1 protein in stimulation of cell motility in rat glioma cells. However, the mechanism of this stimulation is still unclear. This study further investigated the function of L1 and L1 proteolysis in human glioblastoma multiforme (GBM) cell migration and invasion, as well as the mechanism of this stimulation. L1 mRNA was found to be present in human T98G GBM cell line but not in U-118 MG grade III human glioma cell line. L1 protein expression, proteolysis, and release were found in T98G cells and human surgical GBM cells by Western blotting. Exosome-like vesicles released by T98G cells were purified and contained full-length L1. In a scratch assay, T98G cells that migrated into the denuded scratch area exhibited upregulation of ADAM10 protease expression coincident with loss of surface L1. GBM surgical specimen cells exhibited a similar loss of cell surface L1 when xenografted into the chick embryo brain. When lentivirally introduced shRNA was used to attenuate L1 expression, such T98G/shL1 cells exhibited significantly decreased cell motility by time lapse microscopy in our quantitative Super Scratch assay. These cells also showed a decrease in FAK activity and exhibited increased focal complexes. L1 binding integrins which activate FAK were found in T98G and U-118 MG cells. Addition of L1 ectodomain-containing media (1) rescued the decreased cell motility of T98G/shL1 cells and (2) increased cell motility of U-118 MG cells but (3) did not further increase T98G cell motility. Injection of L1-attenuated T98G/shL1 cells into embryonic chick brains resulted in the absence of detectable invasion compared to control cells which invaded brain tissue. These studies support a mechanism where glioma cells at the edge of a cell mass upregulate ADAM10 to proteolyze surface L1 and the resultant ectodomain increases human glioma cell migration and invasion by binding to integrin receptors, activating FAK, and increasing turnover of focal complexes.

Indexed as

Cell MovementADAM10 ProteinADAM ProteinsAmyloid Precursor Protein SecretasesAnimalsBlotting, WesternCell AdhesionCell ProliferationChick EmbryoEnzyme ActivationExosomesFluorescent Antibody TechniqueFocal Adhesion Kinase 1GliomaHumansMembrane ProteinsADAM10 ProteinADAM10 protein, humanADAM ProteinsAmyloid Precursor Protein SecretasesFocal Adhesion Kinase 1Membrane ProteinsNeural Cell Adhesion Molecule L1RNA, MessengerRNA, Small Interfering

Identifiers

PMID21373966
PMCPMC3172337
OpenAlexW2044518523

What OpenQuestion holds

Textmetadata
LicenceTDM
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.