Dataset Information

Post-natal cardiomyocytes can generate iPS cells with an enhanced capacity toward cardiomyogenic re-differentation.

ABSTRACT: Adult mammalian cells can be reprogrammed to a pluripotent state by forcing the expression of a few embryonic transcription factors. The resulting induced pluripotent stem (iPS) cells can differentiate into cells of all three germ layers. It is well known that post-natal cardiomyocytes (CMs) lack the capacity to proliferate. Here, we report that neonatal CMs can be reprogrammed to generate iPS cells that express embryonic-specific markers and feature gene-expression profiles similar to those of mouse embryonic stem (mES) cell and cardiac fibroblast (CF)-derived iPS cell populations. CM-derived iPS cells are able to generate chimeric mice and, moreover, re-differentiate toward CMs more efficiently then either CF-derived iPS cells or mES cells. The increased differentiation capacity is possibly related to CM-derived iPS cells retaining an epigenetic memory of the phenotype of their founder cell. CM-derived iPS cells may thus lead to new information on differentiation processes underlying cardiac differentiation and proliferation.

SUBMITTER: Rizzi R

PROVIDER: S-EPMC3374080 | biostudies-other | 2012 Jul

REPOSITORIES: biostudies-other

ACCESS DATA

Publications

Post-natal cardiomyocytes can generate iPS cells with an enhanced capacity toward cardiomyogenic re-differentation.

Rizzi R R Di Pasquale E E Portararo P P Papait R R Cattaneo P P Latronico M V G MV Altomare C C Sala L L Zaza A A Hirsch E E Naldini L L Condorelli G G Bearzi C C

Cell death and differentiation 20120120 7

Adult mammalian cells can be reprogrammed to a pluripotent state by forcing the expression of a few embryonic transcription factors. The resulting induced pluripotent stem (iPS) cells can differentiate into cells of all three germ layers. It is well known that post-natal cardiomyocytes (CMs) lack the capacity to proliferate. Here, we report that neonatal CMs can be reprogrammed to generate iPS cells that express embryonic-specific markers and feature gene-expression profiles similar to those of ...[more]

PMID: 22261617

Similar Datasets

Project description:BACKGROUND:To date, many attempts are employed to increase the regenerative potential of stem cells. In this study, we evaluated the hypothesis of whether an autophagy modulation could alter differentiation potency of CD146+ cells into mature pericyte, endothelial, and cardiomyocyte lineage. METHODS:In this study, CD146+cells were enriched from the human bone marrow aspirates and trans-differentiated into mature endothelial cells, pericytes, and cardiomyocytes after exposure to autophagy stimulator (50-?M Met)/inhibitor (15-?M HCQ). The protein levels of autophagy proteins were monitored by western blotting. NO content was measured using the Griess assay. Using real-time PCR assay and western blotting, we monitored the lineage protein and gene levels. Pro-inflammatory cytokine and angiocrine factors were measured by ELISA. The fatty acid change was determined by gas chromatography. We also measured exosome secretion capacity by measuring AChE activity and real-time PCR assay. RESULT:Data revealed the modulation of autophagy factors, Beclin-1, P62, and LC3 II/I ratio in differentiating CD146+ cells after exposure to Met and HCQ (p?<?0.05). The inhibition of autophagy increased NO content compared to the Met-treated cells (p?<?0.05). Real-time PCR analysis showed that the treatment of CD146+ cells with autophagy modulators altered the expression of VE-cadherin, cTnI, and ?-SMA (p?<?0.05). Met increased the expression of VE-cadherin, ?-SMA, and cTnI compared to the HCQ-treated cells (p?<?0.05) while western blotting revealed the protein synthesis of all lineage-specific proteins under the stimulation and inhibition of autophagy. None statistically significant differences were found in the levels of Tie-1, Tie-2, VEGFR-1, and VEGFR-2 after autophagy modulation. Fatty acid profile analysis revealed the increase of unsaturated fatty acids after exposure to HCQ (p?<?0.05). The treatment of cells with HCQ increased the levels of TNF-? and IL-6 compared to the Met-treated cells. Data revealed the increase of exosome biogenesis and secretion to the supernatant in cells treated with HCQ compared to the Met groups (p?<?0.05). CONCLUSIONS:In summary, autophagy modulation could alter differentiation potency of CD146+cells which is important in cardiac regeneration.

Dataset Information

Post-natal cardiomyocytes can generate iPS cells with an enhanced capacity toward cardiomyogenic re-differentation.

Publications

Post-natal cardiomyocytes can generate iPS cells with an enhanced capacity toward cardiomyogenic re-differentation.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets