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Embryonic stem cell-derived cardiomyocytes for the treatment of doxorubicin-induced cardiomyopathy

Overview of attention for article published in Stem Cell Research & Therapy, February 2018
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Title
Embryonic stem cell-derived cardiomyocytes for the treatment of doxorubicin-induced cardiomyopathy
Published in
Stem Cell Research & Therapy, February 2018
DOI 10.1186/s13287-018-0788-2
Pubmed ID
Authors

Danúbia Silva dos Santos, Guilherme Visconde Brasil, Isalira Peroba Rezende Ramos, Fernanda Cristina Paccola Mesquita, Tais Hanae Kasai-Brunswick, Michelle Lopes Araújo Christie, Gustavo Monnerat Cahli, Raiana Andrade Quintanilha Barbosa, Sandro Torrentes da Cunha, Jonathas Xavier Pereira, Emiliano Medei, Antonio Carlos Campos de Carvalho, Adriana Bastos Carvalho, Regina Coeli dos Santos Goldenberg

Abstract

Doxorubicin (Dox) is a chemotherapy drug with limited application due to cardiotoxicity that may progress to heart failure. This study aims to evaluate the role of cardiomyocytes derived from mouse embryonic stem cells (CM-mESCs) in the treatment of Dox-induced cardiomyopathy (DIC) in mice. The mouse embryonic stem cell (mESC) line E14TG2A was characterized by karyotype analysis, gene expression using RT-PCR and immunofluorescence. Cells were transduced with luciferase 2 and submitted to cardiac differentiation. Total conditioned medium (TCM) from the CM-mESCs was collected for proteomic analysis. To establish DIC in CD1 mice, Dox (7.5 mg/kg) was administered once a week for 3 weeks, resulting in a cumulative Dox dose of 22.5 mg/kg. At the fourth week, a group of animals was injected intramyocardially with CM-mESCs (8 × 105 cells). Cells were tracked by a bioluminescence assay, and the body weight, echocardiogram, electrocardiogram and number of apoptotic cardiomyocytes were evaluated. mESCs exhibited a normal karyotype and expressed pluripotent markers. Proteomic analysis of TCM showed proteins related to the negative regulation of cell death. CM-mESCs presented ventricular action potential characteristics. Mice that received Dox developed heart failure and showed significant differences in body weight, ejection fraction (EF), end-systolic volume (ESV), stroke volume (SV), heart rate and QT and corrected QT (QTc) intervals when compared to the control group. After cell or placebo injection, the Dox + CM-mESC group showed significant increases in EF and SV when compared to the Dox + placebo group. Reduction in ESV and QT and QTc intervals in Dox + CM-mESC-treated mice was observed at 5 or 30 days after cell treatment. Cells were detected up to 11 days after injection. The Dox + CM-mESC group showed a significant reduction in the percentage of apoptotic cardiomyocytes in the hearts of mice when compared to the Dox + placebo group. CM-mESC transplantation improves cardiac function in mice with DIC.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 40 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 40 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 9 23%
Student > Master 5 13%
Student > Bachelor 3 8%
Other 3 8%
Researcher 2 5%
Other 4 10%
Unknown 14 35%
Readers by discipline Count As %
Medicine and Dentistry 6 15%
Agricultural and Biological Sciences 5 13%
Pharmacology, Toxicology and Pharmaceutical Science 3 8%
Business, Management and Accounting 2 5%
Materials Science 2 5%
Other 4 10%
Unknown 18 45%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 February 2018.
All research outputs
#20,462,806
of 23,020,670 outputs
Outputs from Stem Cell Research & Therapy
#2,060
of 2,429 outputs
Outputs of similar age
#375,363
of 437,337 outputs
Outputs of similar age from Stem Cell Research & Therapy
#54
of 61 outputs
Altmetric has tracked 23,020,670 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,429 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.1. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 437,337 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 61 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.