Evidence map›Paper›PMID 28476123›Full record

ArticleMolecular cancer2017

Epigenetic down regulation of G protein-coupled estrogen receptor (GPER) functions as a tumor suppressor in colorectal cancer.

Qiao Liu, Zhuojia Chen, Guanmin Jiang, Yan Zhou, Xiangling Yang, Hongbin Huang, Huanliang Liu, Jun Du, Hongsheng Wang

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. G-protein coupled estrogen receptor 1Frontiers in endocrinology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Molecules (Basel, Switzerland) · 2024
    Article
  13. 17β-estradiol in colorectal cancer: friend or foe?Cell communication and signaling : CCS · 2024
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. GPER: An Estrogen Receptor Key in Metastasis and Tumoral Microenvironments.International journal of molecular sciences · 2023
    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

9 authors at 4 institutions in 1 country.

Qiao LiuDepartment of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
Zhuojia ChenSun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China.
Guanmin JiangHunan Cancer Hospital & The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China.
Yan ZhouDepartment of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
Xiangling YangGuangdong Institute of Gastroenterology and the Sixth Affiliated Hospital, Institute of Human Virology, Key Laboratory of Tropical Disease Control (Ministry of Education), Sun Yat-sen University, Guangzhou, 510655, China.
Hongbin HuangSun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, 510060, China.
Huanliang LiuGuangdong Institute of Gastroenterology and the Sixth Affiliated Hospital, Institute of Human Virology, Key Laboratory of Tropical Disease Control (Ministry of Education), Sun Yat-sen University, Guangzhou, 510655, China.
Jun DuDepartment of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
Hongsheng WangDepartment of Microbial and Biochemical Pharmacy, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China. whongsh@mail.sysu.edu.cn.
Sun Yat-sen University · CNCentral South University · CNSixth Affiliated Hospital of Sun Yat-sen University · CNSun Yat-sen University Cancer Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEstrogenic signals are suggested to have protection roles in the development of colorectal cancer (CRC). The G protein-coupled estrogen receptor (GPER) has been reported to mediate non-genomic effects of estrogen in hormone related cancers except CRC. Its expression and functions in CRC were investigated.

methodsThe expression of GPER and its associations with clinicopathological features were examined. The mechanisms were further investigated using cells, mouse xenograft models, and clinical human samples.

resultsGPER was significantly (p < 0.01) down regulated in CRC tissues compared with their matched adjacent normal tissues in our two cohorts and three independent investigations from Oncomine database. Patients whose tumors expressing less (n = 36) GPER showed significant (p < 0.01) poorer survival rate as compared with those with greater levels of GPER (n = 54). Promoter methylation and histone H3 deacetylation were involved in the down regulation of GPER in CRC cell lines and clinical tissues. Activation of GPER by its specific agonist G-1 inhibited proliferation, induced cell cycle arrest, mitochondrial-related apoptosis and endoplasmic reticulum (ER) stress of CRC cells. The upregulation of reactive oxygen species (ROS) induced sustained ERK1/2 activation participated in G-1 induced cell growth arrest. Further, G-1 can inhibit the phosphorylation, nuclear localization, and transcriptional activities of NF-κB via both canonical IKKα/ IκBα pathways and phosphorylation of GSK-3β. Xenograft model based on HCT-116 cells confirmed that G-1 can suppress the in vivo progression of CRC.

conclusionsEpigenetic down regulation of GPER acts as a tumor suppressor in colorectal cancer and its specific activation might be a potential approach for CRC treatment.

Indexed as

AgedAnimalsApoptosisCell Cycle CheckpointsCell ProliferationColorectal NeoplasmsCyclopentanesEpigenesis, GeneticEstrogensFemaleGene Expression Regulation, NeoplasticHCT116 CellsHumansMaleMAP Kinase Signaling SystemMice1-(4-(6-bromobenzo(1,3)dioxol-5-yl)-3a,4,5,9b-tetrahydro-3H-cyclopenta(c)quinolin-8-yl)ethanoneCyclopentanesEstrogensGPER1 protein, humanQuinolinesReactive Oxygen SpeciesReceptors, EstrogenReceptors, G-Protein-CoupledCRCG-1GPERNF-κBROS

Identifiers

PMID28476123
PMCPMC5418684
OpenAlexW2611429302

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.