Evidence map›Paper›PMID 24671202›Full record

ArticlePloS one2014

Distinct pathways of ERK1/2 activation by hydroxy-carboxylic acid receptor-1.

Guo Li, Hui-qian Wang, Li-hui Wang, Ru-ping Chen, Jun-ping Liu

RetractedOpen access · goldAbstract readRetracted Publication
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

22 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. The new insights of lactate in various kidney diseases.Expert reviews in molecular medicine · 2025
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  14. Article
  15. Lactate Metabolism and Signaling in Tuberculosis and Cancer: A Comparative Review.Frontiers in cellular and infection microbiology · 2021
    Review
  16. Article
  17. Article
  18. The Lactate Receptor HCAR1 Modulates Neuronal Network Activity through the Activation of GThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Guo LiInstitute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Hui-qian WangInstitute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Li-hui WangInstitute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Ru-ping ChenInstitute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Jun-ping LiuInstitute of Aging Research, School of Medicine, Hangzhou Normal University, Hangzhou, Zhejiang, China.
Hangzhou Normal University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mechanistic investigations have shown that, upon agonist activation, hydroxy-carboxylic acid receptor-1(HCA1) couples to a Gi protein and inhibits adenylate cyclase activity, leading to inhibition of liberation of free fatty acid. However, the underlying molecular mechanisms for HCA1 signaling remain largely unknown. Using CHO-K1 cells stably expressing HCA1, and L6 cells, which endogenously express rat HCA1 receptors, we found that activation of ERK1/2 by HCA1 was rapid, peaking at 5 min, and was significantly blocked by pertussis toxin. Furthermore, time course experiments with different kinase inhibitors demonstrated that HCA1 induced ERK1/2 activation via the extracellular Ca2+, PKC and IGF-I receptor transactivation-dependent pathways. In addition, we observed that pretreated the cells with M119K, an inhibitor of Gβγ subunit-dependent signaling, effectively attenuated the ERK1/2 activation triggered by HCA1, suggesting a critical role for βγ-subunits in HCA1-activated ERK1/2 phosphorylation. Furthermore, the present results also indicated that the arrestin2/3 were not required for ERK1/2 activation. In conclusion, our findings demonstrate that upon binding to agonist, HCA1 receptors initially activate Gi, leading to dissociation of the Gβγ subunit from activated Gi, and subsequently induce ERK1/2 activation via two distinct pathways: one PKC-dependent pathway and the other IGF-IR transactivation-dependent pathway. Our results provide the first in-depth evidence that defines the molecular mechanism of HCA1-mediated ERK1/2 activation.

Indexed as

MAP Kinase Signaling SystemAnimalsArrestinsCarrier ProteinsCHO CellsCricetinaeCricetulusErbB ReceptorsExtracellular Signal-Regulated MAP KinasesHEK293 CellsHeterotrimeric GTP-Binding ProteinsHumansLactic AcidNerve Tissue ProteinsNuclear ProteinsPertussis Toxinarrestin3ArrestinsCarrier ProteinsEGFR protein, humanErbB ReceptorsExtracellular Signal-Regulated MAP KinasesHeterotrimeric GTP-Binding ProteinsLactic AcidMAGEE1 protein, humanNerve Tissue ProteinsNuclear ProteinsPertussis ToxinPhosphatidylinositol 3-KinasesPhospholipase DProtein Kinase CReceptor, IGF Type 1src-Family KinasesType C Phospholipases

Identifiers

PMID24671202
PMCPMC3966839
OpenAlexW2019477006

What Socratic 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 Socratic graph.