Stem Cell Systems and Regeneration
DOI:
https://doi.org/10.52340/gs.2025.07.01.26Ключевые слова:
regeneration, tissue self-renewal, stem cells, asymmetric division, signaling pathways, aging, cell division temp, CRISPR-Cas9, iPSCsАннотация
Stem cell systems are pivotal in biological development, tissue maintenance, and regenerative medicine due to their dual capacity for self-renewal and differentiation. This review explores the heterogeneity and regulatory mechanisms governing stem cells across potency states—pluripotent, multipotent, and unipotent—emphasizing dynamic transcriptional circuits involving core factors (OCT4, SOX2, NANOG) and signaling pathways (Wnt/β-catenin, Notch, Hedgehog). Stem cell homeostasis, critical for tissue integrity, is maintained through intrinsic (epigenetic, metabolic) and extrinsic (niche-derived) cues, with disruptions linked to aging, degenerative diseases, and cancer. Advances in induced pluripotent stem cells (iPSCs) and genome editing (CRISPR-Cas9) offer transformative potential for personalized therapies, yet challenges such as tumorigenicity, immune rejection, and ethical concerns persist. The role of stem cell niches in modulating quiescence, proliferation, and differentiation is highlighted, alongside applications in tissue engineering, organoid development, and disease modeling. Aging-associated decline in stem cell function, driven by oxidative stress, DNA damage, and epigenetic alterations, underscores the need for rejuvenation strategies. Furthermore, dysregulated transcriptional networks in cancer stem cells (CSCs) present therapeutic targets for precision oncology. Future directions emphasize single-cell multiomics, synthetic biology, and bioengineered niches to refine differentiation protocols and enhance clinical translation. By integrating molecular insights with technological innovations, stem cell research promises to bridge gaps in regenerative medicine, offering novel solutions for degenerative disorders, injury repair, and personalized healthcare.
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