Evidence map›Paper›PMID 21554533›Full record

ArticleJournal of cellular and molecular medicine2012

Relaxin promotes growth and maturation of mouse neonatal cardiomyocytes in vitro: clues for cardiac regeneration.

Silvia Nistri, Alessandro Pini, Chiara Sassoli, Roberta Squecco, Fabio Francini, Lucia Formigli, Daniele Bani

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.1field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
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  7. Review
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  9. Article
  10. Serelaxin: a novel therapy for acute heart failure with a range of hemodynamic and non-hemodynamic actions.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2014
    Review
  11. Article
  12. Model systems for cardiovascular regenerative biology.Cold Spring Harbor perspectives in medicine · 2013
    Review
  13. Review
  14. Article
  15. Article
  16. 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

7 authors at 1 institution in 1 country.

Silvia NistriDepartment of Anatomy, Histology & Forensic Medicine, Section Histology, University of Florence, Florence, Italy.
Alessandro Pini
Chiara Sassoli
Roberta Squecco
Fabio Francini
Lucia Formigli
Daniele Bani
University of Florence · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The demonstration that the adult heart contains myocardial progenitor cells which can be recruited in an attempt to replace the injured myocardium has sparkled interest towards novel molecules capable of improving the differentiation of these cells. In this context, the peptide hormone relaxin (RLX), recently validated as a cardiovascular hormone, is a promising candidate. This study was designed to test the hypothesis that RLX may promote the growth and maturation of mouse neonatal immature cardiomyocytes in primary culture. The cultures were studied at 2, 12, 24 and 48 hrs after the addition of human recombinant H2 RLX (100 ng/ml), the main circulating form of the hormone, or plain medium by combining molecular biology, morphology and electrophysiology. RLX modulated cell proliferation, promoting it at 2 and 12 hrs and inhibiting it at 24 hrs; RLX also induced the expression of both cardiac-specific transcription factors (GATA-4 and Nkx2-5) and cardiac-specific structural genes (connexin 43, troponin T and HCN4 ion channel) at both the mRNA and protein level. Consistently, RLX induced the appearance of ultrastructural and electrophysiological signs of functionally competent, mature cardiomyocytes. In conclusion, this study provides novel circumstantial evidence that RLX specifically acts on immature cardiomyocytes by promoting their proliferation and maturation. This notion suggests that RLX, for which the heart is both a source and target organ, may be an endogenous regulator of cardiac morphogenesis during pre-natal life and could participate in heart regeneration and repair, both as endogenous myocardium-derived factor and exogenous cardiotropic drug, during adult life.

Indexed as

RegenerationAnimalsAnimals, NewbornCell DifferentiationCell ProliferationCells, CulturedConnexin 43Cyclic Nucleotide-Gated Cation ChannelsGATA4 Transcription FactorGene ExpressionHeartHomeobox Protein Nkx-2.5Homeodomain ProteinsHumansHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsMiceConnexin 43Cyclic Nucleotide-Gated Cation ChannelsGATA4 Transcription FactorHomeobox Protein Nkx-2.5Homeodomain ProteinsHyperpolarization-Activated Cyclic Nucleotide-Gated ChannelsNkx2-5 protein, mouseRelaxinRLN2 protein, humanRNA, MessengerTranscription FactorsTroponin T

Identifiers

PMID21554533
PMCPMC3822927
OpenAlexW2040200136

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.