Evidence map›Paper›PMID 28273117›Full record

ArticlePloS one2017

Activation of odorant receptor in colorectal cancer cells leads to inhibition of cell proliferation and apoptosis.

Lea Weber, Klaudia Al-Refae, Juliane Ebbert, Peter Jägers, Janine Altmüller, Christian Becker, Stephan Hahn, Günter Gisselmann, Hanns Hatt

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

49 citing papers in PubMed, 79 citations in OpenAlex.

  1. Molecular maps of diseases from omics data and network embeddings.NPJ systems biology and applications · 2026
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  4. Review
  5. Article
  6. Article
  7. Article
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  9. Article
  10. Olfactory receptors and human diseases.Cell and tissue research · 2025
    Review
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  12. Article
  13. Article
  14. Article
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  17. Article
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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 3 institutions in 1 country.

Lea WeberDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Klaudia Al-RefaeDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Juliane EbbertDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Peter JägersDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Janine AltmüllerCologne Center for Genomics, University of Cologne, Cologne, Germany.
Christian BeckerCologne Center for Genomics, University of Cologne, Cologne, Germany.
Stephan HahnDepartment of Molecular Gastrointestinal Oncology, Ruhr-University Bochum, Bochum, Germany.
Günter GisselmannDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Hanns HattDepartment of Cell Physiology, Ruhr-University Bochum, Bochum, Germany.
Ruhr University Bochum · DEUniversity of Cologne · DEUniversity of Duisburg-Essen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The analysis and functional characterization of ectopically expressed human olfactory receptors (ORs) is becoming increasingly important, as many ORs have been identified in several healthy and cancerous tissues. OR activation has been demonstrated to have influence on cancer cell growth and progression. Here, ORs were identified using RNA-Seq analyses and RT-PCR. We demonstrated the OR protein localization in HCT116 cells using immunocytochemistry (IHC). In order to analyze the physiological role of OR51B4, we deorphanized the receptor by the use of CRE-Luciferase assays, conducted calcium imaging experiments as well as scratch- and proliferation assays. Furthermore, western blot analyses revealed the involvement of different protein kinases in the ligand-dependent signaling pathway. Receptor knockdown via shRNA was used to analyze the involvement of OR51B4. We identified OR51B4, which is highly expressed in the colon cancer cell line HCT116 and in native human colon cancer tissues. We deorphanized the receptor and identified Troenan as an effective ligand. Troenan stimulation of HCT116 cells has anti-proliferative, anti-migratory and pro-apoptotic effects, mediated by changes in the intracellular calcium level upon PLC activation. These effects cause changes in the phosphorylation levels of p38, mTor and Akt kinases. Knockdown of the receptor via shRNA confirmed the involvement of OR51B4. This study emphasizes the importance of ectopically expressed ORs in the therapy for several diseases. The findings provide the basis for alternative treatments of colorectal cancer.

Indexed as

ApoptosisBiomarkersCalcium SignalingCaspase 3Cell Line, TumorCell ProliferationColorectal NeoplasmsEctopic Gene ExpressionGene ExpressionGene Expression ProfilingHCT116 CellsHumansLigandsModels, BiologicalPhosphorylationReceptors, OdorantBiomarkersCaspase 3LigandsReceptors, Odorant

Identifiers

PMID28273117
PMCPMC5342199
OpenAlexW2594846137

What OpenQuestion holds

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LicenceCC BY
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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.