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Redox and Epigenetics in Human Pluripotent Stem Cells Differentiation
Sebastiano Giallongo1,2, Daniela Rehakova1,3, Marco Raffaele1
1International Clinical Research Center, St' Anne's University Hospital, Brno, Czech Republic.
Antioxidants & Redox Signaling
|June 23, 2020
Summary
Induced pluripotent stem cells (iPSCs) hold promise for regenerative medicine, but high oxidative stress increases genomic instability. Understanding the redox balance and epigenetic modifications is crucial for safe iPSC therapies.
Area of Science:
- Stem cell biology
- Epigenetics
- Redox biology
Background:
- Induced pluripotent stem cells (iPSCs) offer potential for regenerative medicine and disease modeling due to self-renewal and pluripotency.
- Epigenetic profiling has revealed the control of cellular identity during reprogramming.
- iPSC metabolism and physiology are regulated by oxidation-reduction events.
Purpose of the Study:
- To review the links between redox balance and epigenetic modifications in iPSCs.
- To explore the role of histone variant macroH2A1 in DNA damage response.
- To identify strategies to reduce the teratogenic potential of iPSC transplantation.
Main Methods:
- Review of scientific literature on iPSCs, oxidative stress, epigenetics, and DNA repair.
- Focus on epigenetic modifications, particularly histone variant macroH2A1.
- Analysis of redox balance and its impact on genomic stability.
Main Results:
- High oxidative stress in iPSCs leads to genomic instability and DNA repair deficiencies.
- Epigenetic modifications, including macroH2A1, influence DNA damage response in iPSCs.
- Redox balance is critical for maintaining iPSC genomic integrity.
Conclusions:
- Assessing genomic instability is essential before therapeutic use of iPSCs.
- Targeting redox balance and epigenetic modifications may mitigate iPSC risks.
- Further research can optimize iPSC safety for transplantation therapies.
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