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This article discusses the bi-compartmental organization of hair follicle stem cell niches for balancing stem cell cycling and organ growth and proposes similar structures may exist in other adult stem cell niches but reports no new experimental results.

This study suggests that while VDR is crucial for maintaining hair follicles in mice, their degeneration may be linked to impaired cell migration during hair growth phases rather than stem cell loss.

This study used two-photon microscopy to reveal that the dermal papilla is crucial for hair follicle regeneration and cannot be replaced by neighboring cells, providing new insights into stem cell behavior.

This review examines the diversity and role of stem cells in the adult dermis, noting a lack of precise understanding about their hierarchy and relationship to dermal fibroblast subpopulations, and reports no new results.

This study identified specific markers that can distinguish between stem cells in different regions of human scalp hair follicles, offering potential strategies for cell sorting and purification based on these markers.

This study found that Myc activation in mouse epidermis impairs keratinocyte adhesion and motility by downregulating extracellular matrix and cytoskeleton proteins, affecting hair lineage differentiation.

This study reported that distinct stem/progenitor populations in the ocular surface epithelium have different cell division frequencies and respond differently to injury, with specific spatial compartmentalization and migration behaviors.

This study found that the ocular surface epithelium in mice contains distinct stem cell populations with unique cell division dynamics that change behaviorally in response to different levels of injury.

This study demonstrates that in vivo live imaging reveals how distinct stem cell activities in the limbal niche coordinate corneal regeneration.

This review discusses the distinct roles and surprising developmental flexibility of multiple somatic stem cell types in tissue maintenance and repair, reporting no new results but highlighting emerging questions about their regulation and origins.

This study demonstrates that hair follicle bulge stem cells can transition into other stem cell compartments, indicating their role in maintaining both hair follicles and sebaceous glands.

This study found that deleting ceramide synthase 4 in skin epidermis stem cells disrupts hair follicle and skin barrier function, leading to immune responses similar to atopic dermatitis, due to imbalances in lipid composition affecting differentiation.

Adult hair follicle cells can create new hair follicles from corneal cells with the right support.

This study provided a dynamic 4D atlas showing the development process of mouse hair follicles through a telescope-like model, revealing new insights into the origin of hair follicle stem cells.

This article reviews a new method to accurately estimate proliferative and migratory epithelial cell numbers post-wounding but reports no experimental findings; the authors suggest its relevance to skin stem-cell biology research.

In this study using transgenic mice, activating P-catenin signaling induced new hair follicle formation and maintained follicle tumors, with implications for understanding skin homeostasis.

This review discusses various stem cell compartments in adult murine and human epidermis, examining their expressed markers and characterization assays, and reports no new experimental results.

This article suggests that imaging abnormalities in intestinal stem cell compartments could potentially be incorporated into colorectal cancer screening, but provides no new clinical results.

This study found that HPV16 oncogene expression in multipotent epithelial stem cells led to abnormal mobilization, altering their quiescence without affecting other stem cell markers, suggesting a distinct stem cell compartment.

This study suggests that Myc superfamily transcription factors may have distinct roles in different epithelial compartments of the human hair follicle, possibly influencing cell fate in the putative stem cell compartment.

In this study, dogs with hair cycle disorders, especially those with alopecia X, showed a significant increase in the number of kenogen follicles, suggesting impaired induction of new hair growth phases.

This article reviews recent imaging and genetic tool advances that enable in vivo study of hair regeneration and assessment of skin parameters, but it reports no new clinical results.

This study investigated novel genetic tools to manipulate hair follicle compartments in mice and found that altering dermal papilla genes can significantly impact hair pigmentation.

This study demonstrated that an engineered human skin equivalent can generate follicle-like structures resembling fetal skin, highlighting the role of the dermal compartment in directing epithelial cell fate in vitro.

This study found that different epidermal stem cell populations contribute to the formation of various skin tumors and new hair follicles following β-catenin activation in the adult epidermis.

This review discusses recent findings on the plasticity and regulation of epithelial stem cells and reports no new experimental results.

This study found that in live mouse epidermal stem cells, chromatin compaction is heterogenous and reflects differentiation status, with transcriptional changes largely preceding chromatin rearrangements during differentiation.

This study found that, in mouse tail epidermis, stem cells rapidly activate and regenerate new progenitors to repair wounds, with mechanisms affecting their proliferation, differentiation, and migration.

This study found that fibronectin is crucial for hair follicle stem cell function and regeneration, with its deletion impairing regeneration but restoration by dermal injection of exogenous fibronectin.

This research reports that after genotoxic stress from ionizing radiation or chemotherapy, hair follicles can utilize progenitor cells from transit-amplifying compartments, not quiescent stem cells, for repair, suggesting a potential therapeutic approach to prevent therapy-induced hair loss by activating these progenitors.