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This review highlights how in vivo imaging can explore biological processes related to stem cell activity, behavior, and control, but it reports no new clinical results.

In this study, researchers observed that dysregulated innate lymphoid cells type 1, alongside CD8+ T cells, may contribute to the pathogenesis of alopecia areata by affecting hair follicle health.

This research suggests that innate lymphoid cells type 1 (ILC1) may contribute to the development of alopecia areata, alongside CD8+ T cells, by disrupting hair follicle immune privilege and promoting features of the disease.

This study confirmed the presence of specific stem cell populations in SKH1 hairless mice skin, including CD34+/α6-integrin+ cells, which are important for investigating ultraviolet radiation-induced carcinogenesis.

This study shows that alpha 6 + /MHCI - cells have gene expression profiles similar to hair follicle stem cells, suggesting they may be enriched for stem cells.

This study found that the protein MIM is crucial for maintaining cilia and Sonic hedgehog signaling in mesenchymal cells by counteracting Src-mediated phosphorylation of Cortactin, impacting hair follicle formation.

This study developed an AI-driven method for classifying cells in Follicular Lymphoma cases, achieving a 63% F1-score, precision, and recall in distinguishing centroblasts from other cell types using whole slide images at x20 resolution.

This study found that ILC1-like cells can induce alopecia areata symptoms in both ex vivo human hair follicles and in vivo mouse models, challenging the view that alopecia areata is solely CD8+ T cell-driven.

This study found that mesenchymal stem cells from chronically inflamed human livers maintain their key cellular characteristics, supporting their potential use in developing liver cell therapies.

This study found that mesenchymal cells from different organs exhibit substantial heterogeneity, with thymic mesenchymal cells particularly adapted for interacting with epithelial and hematolymphoid cells in high-apoptosis environments.

This study used fibre optic confocal imaging to visualize subsurface structures in live mouse skin, revealing cellular details and blood vessel networks that dynamic events could be studied in vivo.

This study found that multiphoton microscopy effectively visualizes the microstructure of in vivo mouse skin, offering a clear view of various skin layers and components like corneocytes and collagen fibers.

This study suggests that human mesenchymal stem cells have the potential to differentiate into dermal papilla cells both in vitro and in vivo.

This study found that cultured hair apparatus cells initially showed low keratin antibody reactivity, which increased by day 6 as cells differentiated and corresponded with electron microscopic observations.

This study found that CD1d is strongly expressed in human scalp skin and hair follicles, particularly in the anagen phase, suggesting a role in scalp immunology and potential implications for hair disorder treatment.

This study examined dermoscopic features in African-American women with different types of alopecia and found that a perifollicular pink blush, potentially indicating inflammation, was common, particularly resolved with anti-inflammatory treatment, suggesting dermoscopy could aid in management.

This review explores the potential of cell-mediated drug delivery systems in dermatology, highlighting their ability to target inflamed or diseased skin while discussing applications in diseases like atopic dermatitis and melanoma, along with challenges such as immunogenicity and manufacturing.

This study observed that quiescent label-retaining cells in the intestine, identified by Paneth cell markers, can switch to a proliferative state and activate Bmi1 expression during tissue injury, contributing to tissue regeneration.

In this study, researchers used single-cell RNA sequencing to define and locate three distinct cell states of melanocytes in mouse skin development, potentially aiding the understanding of abnormal melanocyte differentiation.

This study indicates that CD4 protein may have a functional role in basal cell-like keratinocytes through TCR/CD3-independent signaling, affecting their proliferation, differentiation, and migration.

This review discusses how recent studies use models and experiments to understand immune system signaling, but it reports no new clinical findings; the authors suggest strategies for improving these models.

In this study, researchers found that the microRNA profiles of induced pluripotent stem cells (iPSCs) derived from different adult cell types are largely similar, although each line exhibits some unique gene expression, distinct from both their cells of origin and embryonic stem cells.

Reflectance confocal microscopy can noninvasively diagnose onychomatricoma by showing unique features different from healthy nails or nail fungus.

This study found that telocytes in human scalp tissue were located around hair follicles and glands and may be involved in skin regeneration and homeostasis.

In this study, researchers showed that multiphoton microscopy with fluorescent protein tagging enables single-cell imaging and tracking in live transgenic mice, offering new insights into cell dynamics in stem cell research compared to traditional histological methods.

This paper explores the relationship between the dermal extracellular matrix and cutaneous malignant melanoma, suggesting that ECM involvement may play a key role in the cancer's growth, invasiveness, and initial metastasis.

This study found that control of Demodex mite colonization in mice required skin ILC2s and IL-13, highlighting their role in maintaining HF integrity and limiting mite overgrowth.

In this study, researchers differentiated induced pluripotent stem cells into cells with dermal papilla-like properties, demonstrating their potential role in hair follicle bioengineering and drug testing for hair growth.