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This review article highlights recent progress and challenges in stem cell transplantation for regenerative medicine, emphasizing its potential in tissue repair for conditions like bone and cartilage injuries, neurological disorders, and blood diseases, while stressing the importance of overcoming current obstacles for future advancements.

This study found that the Stem Cell Educator therapy improved hair regrowth and quality of life in patients with severe alopecia areata by restoring immune balance and protecting hair follicles from autoimmune damage.

This study found that exosomes from different mesenchymal stem cell sources had distinct effects on immune cell functions and varied microRNA expression profiles compared to their original cells.

This study found that targeting IL-6, IL-1, and CCR6 signaling pathways may effectively reduce irradiation-induced alopecia and dermatitis in radiotherapy patients.

In this study using the C3H/HeJ mouse model of alopecia areata, researchers found that hyperexpanded CD8⁺ T cell clones were sufficient to initiate disease, establishing a causal link between T cell clonality and pathogenicity.

This study found that γδ T cells in the skin contribute to wound healing after vaccinia virus infection by promoting cytokine and growth factor induction, without affecting virus replication control.

This review highlights that T cells are crucial in regulating hair follicle regeneration and their disruption can lead to alopecia, providing insights into hair disorders related to T cell immune balance and hair follicle regeneration.

This review discusses the roles of peripheral nerves in stem cell and immune responses within the skin and hematopoietic system, emphasizing their potential in developing new therapies; it reports no new experimental results.

This study mapped the genome-wide epigenetic landscape in secondary hair follicle stem cells of goats, revealing distinct histone modification signatures associated with cashmere fiber cycling during different stages of hair growth.

This study identified Th22 cells as key effectors in hair regeneration driven by thymosin beta 15, suggesting they could be potential targets for hair regrowth therapies.

This study found that Hoxc gene expression can reprogram mesenchymal dermal papilla cells, enhance epithelial stem cell regenerative potential, and promote region-specific hair follicle regeneration through Wnt signaling.

This study found that topical ruxolitinib protected Lgr5+ skin stem cells and maintained skin homeostasis in skin GVHD, unlike corticosteroids.

This study found that dendritic epidermal T cells and their exosomes enhance epidermal stem cell proliferation, accelerating wound re-epithelialization in the skin.

The authors reported that 4-O-methylhonokiol decreased TGF-β1-induced cell cycle arrest and oxidative stress markers in human keratinocyte cells, suggesting a potential protective role in TGF-β1-mediated cell cycle regulation.

This review discusses the molecular mechanisms driving hair follicle degeneration in skin aging and emphasizes the role of the tissue microenvironment on stem cell function, but reports no new research findings.

In this study, dihydroartemisinin reduced prostate enlargement and related markers in a rat model of benign prostatic hyperplasia, suggesting its potential as a therapeutic agent.

This article provides an overview of mesenchymal stem cells, highlighting their extraction methods, differentiation potential, and applications in regenerative medicine, but reports no new clinical findings.

This study found that micro-niches within hair follicles create heterogeneity among stem cells and transit-amplifying cells, leading to specialized progenitors that control tissue morphogenesis and regeneration.

In this research, authors found that skin-resident ILCs regulate sebaceous gland function and microbial balance, emphasizing an immune-epithelia system that supports host-microbe symbiosis.

Caspase-3 helps control cell growth and organ size by activating YAP.

This review discusses the plasticity of stem cell populations and their ability to switch between functions for tissue homeostasis and regeneration, emphasizing environmental and hormonal influences, and reports no new results.

In this study, the researchers found that treatment with the JAK inhibitor tofacitinib in alopecia areata patients may reduce clonal CD8+ T cell expansions but does not eliminate them entirely, which could contribute to disease relapse.

This review discusses the roles of hypoxia and epigenetics in cellular reprogramming and their contributions to tissue regeneration, reporting no new experimental results.

This review discusses potential immune therapies targeting regulatory T cells for age-related diseases and emphasizes the need for further research to translate these therapies into clinical practice.

This study describes a new mouse model for vitiligo that mimics key clinical features such as skin depigmentation and CD8 + T cell infiltration, providing a useful tool for in-depth research and drug discovery.

In this study, researchers found that coordinated intercellular Ca2+ signaling among basal stem cells in mice is crucial for cell cycle progression and tissue-wide communication during epidermal regeneration.

This review discusses how using hydrogels as a three-dimensional culture platform for mesenchymal stem cells might affect the production of extracellular vesicles, highlighting challenges in standardization and opportunities to boost EV yield via combined hydrogels and bioreactor methods.

This study developed a technique to limit genetic recombination to regulatory T cells to investigate whether self-tolerance is maintained in non-lymphoid tissues, an area previously not well understood.

This study demonstrates that T-cell responses in extensive alopecia areata scalp may be aberrantly regulated, with reduced cytokine production but activated phenotype, providing insight into the disease's immune mechanisms.