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This review examines host factors like ACE2 and TMPRSS2 in SARS-CoV-2 infection, exploring how genetic variants and advanced cellular analyses might clarify COVID-19's severity and heterogeneity; it reports no new results.

This review highlights the regenerative abilities of *Xenopus laevis*, focusing on how tadpoles regrow complex tail structures and the cellular and molecular mechanisms behind this. It underscores *X. laevis* as a valuable model for understanding regeneration, with insights potentially advancing regenerative medicine.

In this study, researchers used single-cell RNA sequencing to identify seven cell types, including distinct steroidogenic and immune cells, in the tumor microenvironment of a case of ovarian SCT-NOS, providing insights into its cellular heterogeneity and molecular mechanisms related to hyperandrogenism.

This study developed a comprehensive atlas of human scalp tissue to uncover cell states and lineages in hair follicles, identifying disease-specific cellular changes associated with non-scarring and scarring hair loss, which may offer new diagnostic and therapeutic insights.

In this study, Lrig1-positive stem cells in mouse hair follicles were found to be essential for sebaceous gland formation and maintenance, with their depletion causing a temporary loss of these glands and changes in cellular differentiation.

This study reported that exosomes derived from human amniotic mesenchymal stem cells (hAMSC-exo) accelerated hair growth in androgenetic alopecia mice by enhancing signals between hair follicle cells and improving cellular environments, particularly protecting against dihydrotestosterone-induced damage via Wnt/β-catenin signaling.

This study explores how Astragaloside A from traditional Chinese medicine may combat lung adenocarcinoma by regulating key signaling molecules like STAT3 and AKT, using techniques such as network pharmacology and molecular docking to understand its mechanisms in cellular models.

This study presents a new long-term 3D skin model using cells from mature donor skin, showing significant features of skin aging, such as decreased cellular proliferation and hyaluronan content.

In this study, researchers observed that blood vessel maturation in mice involves neonatal endothelial cells expanding the capillary network through vessel regression and angiogenesis, with adult cells later maintaining stability and repair through specific signaling pathways.

This review presents an overview of the integrated organ systems involved in wound healing and reports no new findings; the authors emphasize the roles of blood coagulation, immune response, and cellular mechanisms in tissue repair.

This study found that in hidradenitis suppurativa, the proteins SERPINB3/B4 and S100A7/A8/A9 were significantly overexpressed in lesional skin compared to nonlesional skin, suggesting new pathways in the disease's pathogenesis.

In this study, PGD2 treatment in keratinocytes increased testosterone production via reactive oxygen species, suggesting a potential role for the NRF2 pathway in androgenic alopecia treatment strategies.

In this study, using scRNA-seq, researchers detailed the gene expression and cell differentiation processes in goat fetal horn buds, identifying crucial roles for dermal and epithelial cells in horn initiation and highlighting potential genetic factors involved in horn morphogenesis.

This review explores how various skin cell types contribute to photoaging driven by UV radiation, detailing their interactions and molecular mechanisms like oxidative stress and ECM degradation, ultimately offering insights for future anti-photoaging strategies.

This study found that hair germ cells, derived from bulge stem cells, respond faster to dermal papilla signals and have limited proliferation compared to bulge cells during hair regeneration.

This study identified distinct immune differences in patients with alopecia areata, particularly those with atopic backgrounds, and highlighted the OX40 axis as a potential therapeutic target for the condition.

This review discusses how extracellular vesicles play a dual role in age-related diseases by contributing to both disease pathogenesis and potential therapeutic strategies through the transfer of specific molecules.

This review discusses the potential role of Wnt signaling in aging-related heart diseases and reports no clinical results.

This review discusses current technologies for analyzing signaling in hematopoietic stem and progenitor cells and reports no new results, highlighting the need for further research in this area.

This review discusses how polymers can be customized to develop biomaterials that mimic the extracellular matrix, exploring their potential in biomedical and biotechnological applications by triggering cell functions similar to natural physiological systems.

This review outlines curcumin's dual role as a radiosensitizer in cancer cells and a radioprotector in healthy cells, drawing on recent experimental and clinical findings.

This review highlights cepharanthine as a promising candidate for COVID-19 treatment due to its antiviral activity against SARS-CoV-2 and favorable pharmacokinetic and safety profile, but reports no new clinical results.

In this study, cepharanthine showed potent antiviral effects against tick-borne encephalitis virus in vitro by reducing viral replication and inflammation in human lung and neuroblastoma cells.

This review summarizes recent advancements in using exosomes for promoting hair growth, finding that exosomes from various cells, like dermal papilla and mesenchymal stem cells, show promise as a potential new treatment route for alopecia.

This study summarizes the signaling molecules and extracellular components involved in epithelial–mesenchymal interactions, enhancing our understanding of hair follicle regeneration and skin wound healing, but reports no new experimental results.

Photocrosslinkable biomaterials can improve wound healing by controlling mechanical environments.

Rat hair follicle stem cells have functional oxytocin receptors, useful for studying neuropsychiatric disorders.

This study demonstrated that lactate dehydrogenase activity is notably high in quiescent hair follicle stem cells within mouse skin using a specific enzymatic activity assay.

This review synthesizes research on hederagenin's anticancer and anti-inflammatory potential, emphasizing chemical modifications to enhance its bioactivity, but reports no new experimental findings.

This review discusses the cutaneous serotoninergic/melatoninergic system's potential role in skin function and resilience against environmental and internal stresses, but does not report new experimental findings.