Evidence map›Paper›PMID 29593308›Full record

ArticleScientific reports2018

The Anti-Cancer Multikinase Inhibitor Sorafenib Impairs Cardiac Contractility by Reducing Phospholamban Phosphorylation and Sarcoplasmic Calcium Transients.

Christopher Schneider, Markus Wallner, Ewald Kolesnik, Viktoria Herbst, Heinrich Mächler, Martin Pichler, Dirk von Lewinski, Simon Sedej, Peter P Rainer

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
  8. CaInternational journal of molecular sciences · 2023
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  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

9 authors at 3 institutions in 2 countries.

Christopher SchneiderDivision of Cardiology, Medical University of Graz, Graz, Austria.
Markus WallnerDivision of Cardiology, Medical University of Graz, Graz, Austria.
Ewald KolesnikDivision of Cardiology, Medical University of Graz, Graz, Austria.
Viktoria HerbstDivision of Cardiology, Medical University of Graz, Graz, Austria.
Heinrich MächlerDivision of Cardiac Surgery, Medical University of Graz, Graz, Austria.
Martin PichlerDivision of Oncology, Medical University of Graz, Graz, Austria.
Dirk von LewinskiDivision of Cardiology, Medical University of Graz, Graz, Austria.
Simon SedejDivision of Cardiology, Medical University of Graz, Graz, Austria.ORCID 0000-0002-4419-6821
Peter P RainerDivision of Cardiology, Medical University of Graz, Graz, Austria. herzforschung@gmail.com.ORCID 0000-0002-2840-6454
Medical University of Graz · ATJohns Hopkins University · USThe University of Texas MD Anderson Cancer Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tyrosine-kinase inhibitors (TKIs) have revolutionized cancer therapy in recent years. Although more targeted than conventional chemotherapy, TKIs exhibit substantial cardiotoxicity, often manifesting as hypertension or heart failure. Here, we assessed myocyte intrinsic cardiotoxic effects of the TKI sorafenib and investigated underlying alterations of myocyte calcium homeostasis. We found that sorafenib reversibly decreased developed force in auxotonically contracting human myocardia (3 µM: -25 ± 4%, 10 µM: -29 ± 7%, 30 µM: -43 ± 12%, p < 0.01), reduced peak cytosolic calcium concentrations in isolated cardiomyocytes (10 µM: 52 ± 8.1% of baseline, p < 0.001), and slowed cytosolic calcium removal kinetics (RT50, RT10, Tau, p < 0.05). Beta-adrenergic stimulation induced augmentation of calcium transient (CaT) amplitude was attenuated in sorafenib-treated cells (2.7 ± 0.3-fold vs. 3.6 ± 0.2-fold in controls, p < 0.001). Sarcoplasmic reticulum (SR) calcium content was reduced to 67 ± 4% (p < 0.01), and SR calcium re-uptake slowed (p < 0.05). Sorafenib significantly reduced serine 16 phosphorylation of phospholamban (PLN, p < 0.05), while PLN threonine 17 and CaMKII (T286) phosphorylation were not altered. Our data demonstrate that sorafenib acutely impairs cardiac contractility by reducing S16 PLN phosphorylation, leading to reduced SR calcium content, CaT amplitude, and slowed cytosolic calcium removal. These results indicate myocyte intrinsic cardiotoxicity irrespective of effects on the vasculature and chronic cardiac remodeling.

Indexed as

AgedAnimalsCalciumCalcium-Binding ProteinsCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium, DietaryCytosolFemaleHumansMaleMiceMice, Inbred C57BLMiddle AgedMyocardial ContractionMyocardiumMyocytes, CardiacCalciumCalcium-Binding ProteinsCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium, DietaryPhospholambanSarcoplasmic Reticulum Calcium-Transporting ATPasesSorafenib

Identifiers

PMID29593308
PMCPMC5871797
OpenAlexW2795202182

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.