Unknown,Transcriptomics,Genomics,Proteomics

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MiRNA profiling in adult rat cardiomyocytes and myocyte-derived progenitor cells


ABSTRACT: TLDA miRNA profiling on purified rat cardiomyocytes (Myo) (Ctl) and myocyte-derived progenitor cells (MDCs) demonstrated significant dedifferentiation of myocytes and identity of stemness, cell cycle progression and proliferation in MDCs after continuous culture in mitogen-rich medium for about 2 weeks. Total RNA was extracted from 3 batches of myocytes or MDCs; 100ug each was subjected to TLDA microRNA profiling after preamplification using ABI's kit. Cardiomyocyte (Myo, Ctl) was used as calibrator sample.

ORGANISM(S): Rattus norvegicus

SUBMITTER: Yiqiang Zhang 

PROVIDER: E-GEOD-24252 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications


<h4>Background</h4>It has long been thought that mammalian cardiomyocytes are terminally-differentiated and unable to proliferate. However, myocytes in more primitive animals such as zebrafish are able to dedifferentiate and proliferate to regenerate amputated cardiac muscle.<h4>Methodology/principal findings</h4>Here we test the hypothesis that mature mammalian cardiomyocytes retain substantial cellular plasticity, including the ability to dedifferentiate, proliferate, and acquire progenitor ce  ...[more]

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