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This review examined and discussed the role of dermis-derived factors in the regulation of melanogenesis, noting their significance in both normal and abnormal mammalian skin conditions, suggesting an underexplored area of study compared to dermal and epidermal influences.

This study found that tannic acid accelerated wound healing in rats by modulating inflammatory cytokines, increasing growth factors, and activating the Erk 1/2 pathway.

This study found that fig leaf extract significantly downregulated inflammatory and androgenic gene expression in vitro, suggesting potential topical benefits for certain skin disorders.

This study found that FGF21 suppresses inflammation induced by C. acnes in both human skin cells and mouse models, suggesting potential use in acne treatment.

This study discovered that DNA damage independently induces IL-19 and IL-24 cytokines, which regulate senescence-associated secretory phenotype factors, suggesting potential pathways for treating cancer and age-related diseases.

This study reports that some human cell surface HLA-I molecules (including HLA-B27) can appear without their usual peptide component, potentially altering immune interactions, influencing arthritis development in specific mice models, and exhibiting upregulation in certain cancer cells.

In this randomized, double-blind study of 24 participants with hair loss, the combination of bromelain and finasteride increased hair count, thickness, and density significantly more than finasteride alone or a placebo cream, while reducing inflammatory markers.

In this study, researchers observed that a topical gel containing 20% hypoxia mesenchymal stem cell secretome significantly reduced IL-15 and IFN-γ mRNA expression and baldness by 60% in male Wistar rats with fluconazole-related alopecia.

This study found that in individuals with alopecia areata, intralesional Triamcinolone therapy led to significantly greater reduction in disease severity, measured by SALT scores, compared to autologous platelet-rich plasma treatment over a 24-week period.

This study found that IL-1 alpha inhibits the growth of cultured human hair follicles and hair fibers, suggesting a potential role in inflammatory hair loss conditions like alopecia areata.

This study found that UV exposure in human skin induces IL-10 production by macrophages, while Langerhans cells are depleted and their IL-12 production is downregulated.

This study found that skin microbiota, particularly in wild-type mice, promotes wound-induced hair follicle neogenesis and wound healing, highlighting the potential downsides of routine antibiotic use on skin regeneration.

ASLAN004 was safe and well-tolerated, supporting further development for treating certain diseases.

In this study, 2′‐Fucosyllactose (2′‐FL) administration significantly reduced hair loss and increased hair length and thickness in a testosterone-induced androgenic alopecia mouse model, suggesting potential as a therapeutic agent for AGA.

This review discusses the potential of combining low-dose IL-2 with islet antigens to enhance antigen-specific Treg function in type 1 diabetes, but reports no new clinical results.

This study found that procyanidins effectively alleviate neuropathic pain in mice by significantly inhibiting MMP-9/2 activity.

This review highlights recent insights into how IL-15 influences T cell responses and contributes to immunopathogenesis in various diseases, suggesting its crucial role in TCR-independent activation and potential in optimizing therapeutic strategies.

This study found that the extract of Bidens pilosa L. improved dry eye symptoms associated with androgen deficiency in rats by enhancing tear production, stabilizing the tear film, and reducing lacrimal gland inflammation.

This review discusses the use of topical and intralesional corticosteroids for treating alopecia areata, highlighting their efficacy and safety but noting recurrence and pain as limitations; no new clinical results are reported.

This review suggests that IL-23 inhibitors may be effective for various non-psoriatic inflammatory skin conditions, but emphasizes the need for further large-scale trials to confirm their efficacy and safety.

In this study using mouse models, researchers found that elevated IL-17a in aged olfactory epithelium impairs olfactory function, while IL-17a inhibition promotes regeneration and mitigates age-related decline.

This narrative review explored the complex interconnections between psoriasis and other dermatological conditions like vitiligo, alopecia areata, and atopic dermatitis, highlighting shared immune dysfunctions that complicate diagnosis and treatment, with implications for research and holistic patient care.

IL-13 protein is much higher in the skin of atopic dermatitis patients than in healthy skin.

This study found that mechlorethamine restored hair growth in mice with alopecia-areata-like disease by eliminating infiltrated lymphocytes and inhibiting certain pro-inflammatory cytokines in treated skin areas.

This study reports that in systemic sclerosis, CD34+ dermal fibroblasts transition to CD34−, podoplanin+, and CD90+ fibroblasts across the dermis, suggesting a role in unchecked fibrosis.

This study found that Schistosoma mansoni cercariae stimulate epidermal keratinocytes in mice, initiating pro-inflammatory responses and barrier repair mechanisms akin to those in wound healing.

This study explored the wound healing potential of a natural marine soft coral-derived nanoparticle-based gel in a diabetic excision wound model, finding it effectively regulates proinflammatory cytokines and inhibits enzymes related to wound healing.

This study found that mesenchymal stem cell treatment alleviated atopic dermatitis-like symptoms in a mouse model by modulating immune and inflammatory responses, with gene expression changes suggesting pathways for potential personalized treatment approaches.

In this animal study, combined cellular therapy significantly improved diabetic wound healing, and probiotics further enhanced these effects by reducing oxidative stress, apoptosis, and inflammation while promoting vascularization and collagen organization.

In this study, increased Treg cell activity indicated by IL-10 and IL-15 was identified as a feature of ADTA, distinguishing it from AA and potentially explaining ADTA's more favorable prognosis.