Evidence map›Paper›PMID 22771868›Full record

ArticleBiochimica et biophysica acta

Regulation of mGluR1 expression in human melanocytes and melanoma cells.

Hwa Jin Lee, Brian A Wall, Janet Wangari-Talbot, Suzie Chen

Open access · greenAbstract read
In one paragraph

Article in Biochimica et biophysica acta. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 26% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 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

4 authors at 3 institutions in 2 countries.

Hwa Jin LeeCollege of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea.
Brian A Wall
Janet Wangari-Talbot
Suzie Chen
Rutgers, The State University of New Jersey · USRutgers Cancer Institute of New JerseySookmyung Women's University · KR

Funding

Neoplastic transformation of melanocytes by Grm1R01CA108720 · NCI · RUTGERS THE ST UNIV OF NJ NEW BRUNSWICK · PI CHEN, SUZIE · 2004 to 2008
$1.3M
MSU-UMDNJ-GSBS Bridge to the DoctorateR25GM066338 · NIGMS · MONTCLAIR STATE UNIVERSITY · PI VEGA, QUINN C · 2002 to 2007
$770k
NCI NIH HHS R01 CA108720NCI NIH HHS R01CA108720NIGMS NIH HHS GM66338NIGMS NIH HHS R25 GM066338
6 · The paper itself

Abstract

We demonstrated that ectopic expression of metabotropic glutamate receptor 1 (mGluR1/Grm1) in mouse melanocytes was sufficient to induce melanoma development in vivo with 100% penetrance. We also showed that about 60% of human melanoma biopsies and cell lines, but not benign nevi or normal human melanocytes expressed mGluR1, suggesting that GRM1 may be involved in melanomagenesis. mGluR1 is expressed primarily in neurons. In various non-neuronal cells, mGluR1 expression is regulated via binding of Neuron-Restrictive-Silencer-Factor (NRSF) to a Neuron-Restrictive-Silencer-Element (NRSE). Here, we report on the possibility that aberrant mGluR1 expression in melanoma is due to alterations in NRSF and/or NRSE. We show that in human melanocytes, binding of NRSF to NRSE in the GRM1 promoter region is necessary for the suppression of mGluR1 expression. We also show that inhibiting the expression of the transcription factor Sp1 or interference with its ability to bind DNA can result in increased mGluR1 expression perhaps via its function as a negative regulator. In addition, we also provide evidence that demethylation within the promoter region of GRM1 may also be a mechanism for the derepression of mGluR1 expression in melanocytes that progress to cell transformation and tumor formation.

Indexed as

Gene Expression Regulation, NeoplasticCell Line, TumorCell Transformation, NeoplasticDNA MethylationHumansMelanocytesMelanomaNeoplasm ProteinsRE1-Silencing Transcription FactorReceptors, Metabotropic GlutamateRepressor ProteinsResponse ElementsSilencer Elements, TranscriptionalSp1 Transcription Factormetabotropic glutamate receptor type 1Neoplasm ProteinsRE1-Silencing Transcription FactorReceptors, Metabotropic GlutamateRepressor ProteinsSp1 Transcription Factor

Identifiers

PMID22771868
PMCPMC3495084
OpenAlexW1986862647

What OpenQuestion holds

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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.