Evidence map›Paper›PMID 29391393›Full record

ArticleOncogenesis2018

Lrig1 is a haploinsufficient tumor suppressor gene in malignant glioma.

Feng Mao, Camilla Holmlund, Mahmood Faraz, Wanzhong Wang, Tommy Bergenheim, Samuel Kvarnbrink, Mikael Johansson, Roger Henriksson, Håkan Hedman

Open access · goldAbstract read
In one paragraph

Article in Oncogenesis, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-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

24 citing papers in PubMed, 59 citations in OpenAlex.

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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 2 institutions in 2 countries.

Feng MaoDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Camilla HolmlundDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Mahmood FarazDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Wanzhong WangDepartment of Pathology/Cytology, Karolinska University Hospital, Huddinge, Sweden.
Tommy BergenheimDepartment of Pharmacology and Clinical Neuroscience, Section of Neurosurgery, Umeå University, Umeå, Sweden.
Samuel KvarnbrinkDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Mikael JohanssonDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Roger HenrikssonDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden.
Håkan HedmanDepartment of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden. hakan.hedman@umu.se.
Umeå University · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently, a genome-wide association study showed that a single nucleotide polymorphism (SNP) -rs11706832-in intron 2 of the human LRIG1 (Leucine-rich repeats and immunoglobulin-like domains 1) gene is associated with susceptibility to glioma. However, the mechanism by which rs11706832 affects glioma risk remains unknown; additionally, it is unknown whether the expression levels of LRIG1 are a relevant determinant of gliomagenesis. Here, we investigated the role of Lrig1 in platelet-derived growth factor (PDGF)-induced experimental glioma in mice by introducing mono-allelic and bi-allelic deletions of Lrig1 followed by inducing gliomagenesis via intracranial retroviral transduction of PDGFB in neural progenitor cells. Lrig1 was expressed in PDGFB-induced gliomas in wild-type mice as assessed using in situ hybridization. Intriguingly, Lrig1-heterozygous mice developed higher grade gliomas than did wild-type mice (grade IV vs. grade II/III, p = 0.002). Reciprocally, the ectopic expression of LRIG1 in the TB107 high-grade human glioma (glioblastoma, grade IV) cell line decreased the invasion of orthotopic tumors in immunocompromised mice in vivo and reduced cell migration in vitro. Concomitantly, the activity of the receptor tyrosine kinase MET was downregulated, which partially explained the reduction in cell migration. In summary, Lrig1 is a haploinsufficient suppressor of PDGFB-driven glioma, possibly in part via negative regulation of MET-driven cell migration and invasion. Thus, for the first time, changes in physiological Lrig1 expression have been linked to gliomagenesis, whereby the SNP rs11706832 may affect glioma risk by regulating LRIG1 expression.

Identifiers

PMID29391393
PMCPMC5833707
OpenAlexW2793917889

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Registered trials

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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.