Evidence map›Paper›PMID 23071612›Full record

ArticlePloS one2012

LH and hCG action on the same receptor results in quantitatively and qualitatively different intracellular signalling.

Livio Casarini, Monica Lispi, Salvatore Longobardi, Fabiola Milosa, Antonio La Marca, Daniela Tagliasacchi, Elisa Pignatti, Manuela Simoni

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 117 papers.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed
10.7field-weighted citation impact, top 1% 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.

NCT04189133 phase2unknown statusnot on this mapstarted 2022, after this paper: background citation

Pharmacodynamics and Safety of Human Recombinant Luteinising Hormone in Hypogonadotropic Hypogonadal Men

TypeinterventionalSponsorAzienda Ospedaliero-Universitaria di ModenaRan2022 to 2026Enrolled32ConditionsAcquired Hypogonadotropic HypogonadismArmsLutropin alfa, Human chorionic gonadotropin
NCT04992468 phase4completednot on this mapstarted 2021, after this paper: background citation

Dual Trigger vs.GnRH-a Trigger for Elective Fertility Preservation. A Randomized Controlled Trial

TypeinterventionalSponsorFundación Santiago Dexeus FontRan2021 to 2023Enrolled136ConditionsInfertilityArmsOvulation triggering with GnRH-a+rhCG, Ovulation triggering with GnRH-a
3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 274 citations in OpenAlex.

  1. Trial
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  11. The Effect of hCG Supplementation on Embryo Quality after RescueJournal of reproduction & infertility · 2025
    Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Pharmacogenomic of LH and its receptor: are we ready for clinical practice?Reproductive biology and endocrinology : RB&E · 2025
    Review
  17. Review
  18. Triggering final follicular maturation for IVF cycles.Reproductive biology and endocrinology : RB&E · 2025
    Review
  19. Article
  20. Review

57 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Livio CasariniDepartment of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.
Monica Lispi
Salvatore Longobardi
Fabiola Milosa
Antonio La Marca
Daniela Tagliasacchi
Elisa Pignatti
Manuela Simoni
University of Modena and Reggio Emilia · ITMerck Serono (Italy) · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human luteinizing hormone (hLH) and chorionic gonadotropin (hCG) act on the same receptor (LHCGR) but it is not known whether they elicit the same cellular and molecular response. This study compares for the first time the activation of cell-signalling pathways and gene expression in response to hLH and hCG. Using recombinant hLH and recombinant hCG we evaluated the kinetics of cAMP production in COS-7 and hGL5 cells permanently expressing LHCGR (COS-7/LHCGR, hGL5/LHCGR), as well as cAMP, ERK1/2, AKT activation and progesterone production in primary human granulosa cells (hGLC). The expression of selected target genes was measured in the presence or absence of ERK- or AKT-pathways inhibitors. In COS-7/LHCGR cells, hCG is 5-fold more potent than hLH (cAMP ED(50): 107.1±14.3 pM and 530.0±51.2 pM, respectively). hLH maximal effect was significantly faster (10 minutes by hLH; 1 hour by hCG). In hGLC continuous exposure to equipotent doses of gonadotropins up to 36 hours revealed that intracellular cAMP production is oscillating and significantly higher by hCG versus hLH. Conversely, phospho-ERK1/2 and -AKT activation was more potent and sustained by hLH versus hCG. ERK1/2 and AKT inhibition removed the inhibitory effect on NRG1 (neuregulin) expression by hLH but not by hCG; ERK1/2 inhibition significantly increased hLH- but not hCG-stimulated CYP19A1 (aromatase) expression. We conclude that: i) hCG is more potent on cAMP production, while hLH is more potent on ERK and AKT activation; ii) hGLC respond to equipotent, constant hLH or hCG stimulation with a fluctuating cAMP production and progressive progesterone secretion; and iii) the expression of hLH and hCG target genes partly involves the activation of different pathways depending on the ligand. Therefore, the LHCGR is able to differentiate the activity of hLH and hCG.

Indexed as

Signal Transduction1-Methyl-3-isobutylxanthineAdultAnimalsCell ShapeChlorocebus aethiopsChorionic GonadotropinCOS CellsCyclic AMPDose-Response Relationship, DrugExtracellular Signal-Regulated MAP KinasesFemaleGranulosa CellsHumansKineticsLuteinizing Hormone1-Methyl-3-isobutylxanthineChorionic GonadotropinCyclic AMPExtracellular Signal-Regulated MAP KinasesLuteinizing HormoneProgesteroneProtein Kinase InhibitorsProto-Oncogene Proteins c-aktReceptors, LH

Identifiers

PMID23071612
PMCPMC3465272
OpenAlexW2051209291

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.