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Stem Cell and Stem Cell-Derived Extracellular Vesicles: Therapeutic Potential and Mechanistic Insights in Anti-Aging
Jinfeng Liu1, Dong Li1, Shuxing Wu2
1School of Medicine, Nankai University, Tianjin, 300071, China.
Abstract:
Aging is driven by interconnected molecular and cellular processes (senescence, inflammation, proteostasis decline, mitochondrial dysfunction) that reduce tissue repair and organismal resilience, resulting in an increased prevalence of chronic degenerative conditions. Accordingly, the development of strategies to prevent, delay, or mitigate multiple age-related diseases is imperative. Embryonic stem cells (ESCs) and other pluripotent stem cells (PSCs) offer substantial therapeutic potential owing to their self-renewal and cellular plasticity, but their direct clinical use is limited by concerns of immunogenicity, tumorigenicity, and ethical constraints. ESC- and PSC-derived extracellular vesicles (ESC-EVs/PSC-EVs) have emerged as promising alternatives that may capture many of the regenerative and modulatory benefits of their parent cells while reducing associated risks. Cumulative evidence shows that EVs from young or stem-like cells mainly produce rejuvenating effects across tissues and molecular pathways. Here we summarize key biological features of stem cells and their EVs, outline mechanisms by which EVs impact aging hallmarks, and assess preclinical and early clinical findings on stem cell and EVs interventions for aging and age-related diseases. Careful optimization of EVs production, standardized characterization, and thorough safety and efficacy testing in diverse disease models and clinical contexts are essential to translate PSC-EVs approaches into viable therapies.
Insights
Extracellular vesicles (EVs) derived from pluripotent stem cells (PSCs) show promise for combating aging and age-related diseases by offering regenerative benefits with reduced risks compared to direct cell therapy. Further research is needed for clinical translation.
Area of Science:
- Gerontology
- Regenerative Medicine
- Cell Biology
Background:
- Aging involves interconnected molecular and cellular processes like senescence and inflammation, increasing chronic disease risk.
- Pluripotent stem cells (PSCs) have therapeutic potential but face clinical limitations such as immunogenicity and tumorigenicity.
- Extracellular vesicles (EVs) from PSCs (PSC-EVs) offer a safer alternative, potentially delivering regenerative benefits.
Purpose of the Study:
- To review the biological characteristics of stem cells and their EVs.
- To outline the mechanisms by which EVs influence aging hallmarks.
- To assess current preclinical and clinical evidence for stem cell and EV interventions in aging.
Main Methods:
- Literature review and synthesis of existing research on stem cells, EVs, and aging.
- Analysis of mechanisms underlying EV-mediated rejuvenation.
- Evaluation of preclinical and early clinical data on therapeutic interventions.
Main Results:
- Stem cells and their derived EVs possess regenerative and modulatory properties beneficial for aging.
- EVs from young or stem-like cells demonstrate rejuvenating effects across various tissues and molecular pathways.
- Preclinical and early clinical studies show potential for stem cell and EV therapies in age-related conditions.
Conclusions:
- PSC-EVs represent a promising cell-free therapeutic strategy for aging and related diseases.
- Optimization of EV production, standardization of characterization, and rigorous safety/efficacy testing are crucial for clinical translation.
- Further research is essential to establish PSC-EVs as viable therapies for mitigating aging and its associated pathologies.
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