Evidence map›Paper›PMID 19300910›Full record

ArticleJournal of neuro-oncology2009

Upregulation of LRIG1 suppresses malignant glioma cell growth by attenuating EGFR activity.

Fei Ye, Qinglei Gao, Tongjiang Xu, Liang Zeng, Yibo Ou, Feng Mao, Heping Wang, Yue He, Baofeng Wang, Zhengming Yang and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

26 citing papers in PubMed, 52 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. The emerging role of miR-19 in glioma.Journal of cellular and molecular medicine · 2018
    Review
  9. Article
  10. Article
  11. Over-expression of LRIG1 suppresses biological function of pituitary adenoma via attenuation of PI3K/AKT and Ras/Raf/ERK pathways in vivo and in vitro.Journal of Huazhong University of Science and Technology. Medical sciences = Hua zhong ke ji da xue xue bao. Yi xue Ying De wen ban = Huazhong keji daxue xuebao. Yixue Yingdewen ban · 2016
    Article
  12. Observational
  13. Article
  14. Article
  15. LRIG and cancer prognosis.Acta oncologica (Stockholm, Sweden) · 2014
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  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

12 authors at 2 institutions in 1 country.

Fei YeDepartment of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, 1095 Jie-Fang Avenue, Wuhan, Hubei, 430030, People's Republic of China. yeyuanbei@hotmail.com
Qinglei Gao
Tongjiang Xu
Liang Zeng
Yibo Ou
Feng Mao
Heping Wang
Yue He
Baofeng Wang
Zhengming Yang
Dongsheng Guo
Ting Lei
Tongji Hospital · CNHuazhong University of Science and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Activated epidermal growth factor receptor (EGFR) has emerged as an important therapeutic target for a variety of solid tumors, particularly malignant gliomas. A recently discovered transmembrane glycoprotein, LRIG1, antagonizes the activity of epidermal growth factor receptor family receptor tyrosine kinases and acts as a negative feedback loop of EGFR and proposed tumor suppressors. The aim of this study was to investigate the impact of LRIG1 on the biological features of glioma cells and the possible mechanisms of enhanced apoptosis induced by upregulation of LRIG1. We observed that the expression of LRIG1 was decreased, while the expression of EGFR was increased in the majority of astrocytomas, and the ratio of EGFR/LRIG1 was increased by sixfold in tumors versus corresponding non-neoplastic tissue. Upregulation of LRIG1, followed by a decrease of EGFR on the cytomembrane of the cells, induced cell apoptosis and cell growth inhibition, and further reversed invasion in glioma cell lines and primary glioma cells. Our study now clearly indicates that LRIG1 indeed affects cell fate and biology behaviors of the cells in vitro by inhibiting phosphorylation of downstream MAPK and AKT signaling pathway, and the elevated release level of caspase-8 might contribute to the enhanced apoptosis in LRIG1 transfected glioma cells. Taken together, these findings provide us with an insight into LRIG1 function, and we conclude that LRIG1 evolved in gliomas as a rare feedback negative attenuator of EGFR and could offer a novel therapeutic target to treat patients with malignant gliomas.

Indexed as

ApoptosisBlotting, WesternBrain NeoplasmsCell AdhesionCell MovementCell ProliferationErbB ReceptorsGliomaHumansImmunoprecipitationMembrane GlycoproteinsMitogen-Activated Protein Kinase KinasesProto-Oncogene Proteins c-aktReverse Transcriptase Polymerase Chain ReactionRNA, MessengerTransfectionEGFR protein, humanErbB ReceptorsLRIG1 protein, humanMembrane GlycoproteinsMitogen-Activated Protein Kinase KinasesProto-Oncogene Proteins c-aktRNA, Messenger

Identifiers

PMID19300910
OpenAlexW2006575609

What OpenQuestion 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 OpenQuestion graph.