Evidence map›Paper›PMID 12867592›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Ligand-dependent and -independent effects of splice variant 1 of growth hormone-releasing hormone receptor.

Hippokratis Kiaris, Ioulia Chatzistamou, Andrew V Schally, Gabor Halmos, Jozsef L Varga, Helen Koutselini, Anastasios Kalofoutis

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

39 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Review
  3. Growth hormone - releasing hormone in the immune system.Reviews in endocrine & metabolic disorders · 2025
    Review
  4. GHRH and the prostate.Reviews in endocrine & metabolic disorders · 2025
    Review
  5. Review
  6. Review
  7. Growth hormone-releasing hormone and cancer.Reviews in endocrine & metabolic disorders · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Constitutive signal bias mediated by the human GHRHR splice variant 1.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  16. Article
  17. A glimpse at growth hormone-releasing hormone cosmos.Clinical and experimental pharmacology & physiology · 2020
    Article
  18. Article
  19. Article
  20. Article
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

7 authors at 2 institutions in 2 countries.

Hippokratis KiarisDepartment of Biological Chemistry,Medical School, University of Athens, 115 27 Athens, Greece. hkiaris@med.uoa.gr
Ioulia Chatzistamou
Andrew V Schally
Gabor Halmos
Jozsef L Varga
Helen Koutselini
Anastasios Kalofoutis
Tulane University · USNational and Kapodistrian University of Athens · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Existing evidence indicates that, in addition to its neuroendocrine action, growth hormone-releasing hormone (GHRH) acts directly on several nonpituitary tissues, especially neoplasms, and stimulates cell proliferation. We have recently reported that a splice variant of the receptor (SV1) is expressed in various normal tissues and particularly in tumor tissues, producing mitogenic effects on GHRH binding. By using HEC-1A human endometrial carcinoma cells, which express endogenous SV1, we show that, in addition to its ability to mediate the mitogenic effects of GHRH, SV1 also possesses relatively high intrinsic, ligand-independent activity. By using an antisense RNA-based approach we found that SV1 ablation reduces the efficacy of colony formation and the rate of cell proliferation of HEC-1A cells in the absence of exogenous GHRH, and decreases their sensitivity to GHRH when the neurohormone is added to the culture media. This ligand-independent stimulation of cell proliferation appears to be a characteristic property of the truncated form of the receptor, because the expression of SV1 and not of the full-length GHRH receptor stimulated the proliferation of 3T3 fibroblasts in the absence of exogenous GHRH, whereas both forms mediated the proliferative effects of GHRH. Evaluation of 21 specimens of human primary endometrial carcinoma for expression of SV1 by immunohistochemistry indicated that in contrast to the GHRH receptor, which is absent, SV1 is expressed in approximately 43% of the specimens. These findings indicate that SV1 can operate in a ligand-independent as well as a ligand-dependent manner. The overexpression of this form of GHRH receptor may be associated with carcinogenesis.

Indexed as

3T3 CellsAdenocarcinomaAgedAged, 80 and overAlternative SplicingAnimalsCarcinomaCell DivisionCulture MediaEndometrial NeoplasmsFemaleFibroblastsHumansImmunohistochemistryLigandsMiceCulture MediaLigandsOligonucleotides, AntisenseReceptors, NeuropeptideReceptors, Pituitary Hormone-Regulating HormoneRNAsomatotropin releasing hormone receptor

Identifiers

PMID12867592
PMCPMC170949
OpenAlexW2132651725

What OpenQuestion holds

Textmetadata
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.