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Published on: January 8, 2017
Stem Cell Aging and Regenerative Medicine
Debojyoti De1, Parimal Karmakar1, Debalina Bhattacharya2
1Department of Life science and Biotechnology, Jadavpur University, Kolkata, India.
Abstract:
Stem cells are a promising source for regenerative medicine to cure a plethora of diseases that are currently treated based on either palliative or symptomatic relief or by preventing their onset and progression. Aging-associated degenerative changes in stem cells, stem cell niches, and signaling pathways bring a step by step decline in the regenerative and functional potential of tissues. Clinical studies and experiments on model organisms have pointed out checkpoints that aging will inevitably impose on stem cell aiming for transplantation and hence questions are raised about the age of the donor. In the following discourse, we review the fundamental molecular pathways that are implicated in stem cell aging and the current progress in tissue engineering and transplantation of each type of stem cells in regenerative medicine. We further focus on the consequences of stem cell aging on their clinical uses and the development of novel strategies to bypass those pitfalls and improve tissue replenishment.
Insights
Stem cell aging hinders regenerative medicine. This review explores molecular pathways, tissue engineering, and strategies to overcome aging
Area of Science:
- Regenerative Medicine
- Stem Cell Biology
- Aging Research
Background:
- Stem cells offer potential for treating numerous diseases.
- Aging negatively impacts stem cell function and tissue regeneration.
- Donor age is a critical factor in stem cell transplantation efficacy.
Purpose of the Study:
- To review molecular pathways of stem cell aging.
- To discuss progress in stem cell tissue engineering and transplantation.
- To identify strategies to mitigate aging's impact on regenerative medicine.
Main Methods:
- Literature review of molecular pathways in stem cell aging.
- Analysis of current tissue engineering and transplantation techniques.
- Evaluation of strategies to counteract stem cell aging effects.
Main Results:
- Aging affects stem cell niches and signaling pathways, reducing regenerative potential.
- Donor age poses challenges for stem cell transplantation success.
- Novel strategies are emerging to improve tissue replenishment despite aging.
Conclusions:
- Understanding stem cell aging is crucial for effective regenerative medicine.
- Tissue engineering and transplantation advancements are ongoing.
- Developing methods to bypass aging pitfalls is key for future therapies.
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