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This study found that UV radiation-induced fibroblast depletion in the skin is primarily due to a deregulated inflammatory response, with T cells aiding fibroblast survival under stress.

This report discusses the Ninth World Congress for Hair Research and highlights the potential of hair follicle studies to advance understanding of various diseases, with no new clinical results presented.

Erythropoietin can promote hair growth by increasing IGF-1 in hair cells.

This ex vivo study found that hair follicles in female pattern hair loss exhibited nutrient insufficiency and dormant metabolism, but maintained nutrient uptake capability, suggesting potential benefits of nutritional supplementation as an adjunct therapy.

This study found that molecular differences in paracrine factors between balding and non-balding hair follicles may enhance understanding of androgen action in hair disorders and potentially inform better treatments.

This review highlights the promising potential of 3D printing for creating microneedles with precise customization and improved performance compared to traditional micromolding, emphasizing applications in personalized medical devices and advancements in biomedical fields.

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

In this study, researchers developed a 3D chitosan/polyvinyl alcohol-tannic acid nanofiber sponge that demonstrated effective hemostatic, antibacterial, and antioxidant properties without antibiotics, accelerated wound healing in vivo, and showed high biocompatibility with L929 cells, highlighting its potential as a wound dressing for clinical use.

In this mouse study, researchers reported that a 3D bioprinted hydrogel scaffold containing adipose-derived mesenchymal stem cells and nitric oxide enhanced burn wound healing by promoting neovascularization through the VEGF signaling pathway.

The researchers suggest that advancements in bioprinting technology are promising but still face challenges in achieving human-scale, clinically applicable tissue constructs.

This article details laboratory methods for isolating and culturing human dermal papilla cells but provides no new experimental results.

This review discusses recent advancements in 3D bioprinting for skin regeneration and describes potential improvements for clinical applications, but it reports no new experimental results.

This study found that human adipose-derived stem cells co-cultured on a collagen sponge scaffold showed increased differentiation into keratinocytes, suggesting potential for improved skin wound healing.

This review summarizes the use of 3D printing technologies for creating microneedles and evaluates their associated benefits, challenges, and regulatory considerations, but does not present new experimental results.

This review discusses the development and applications of microneedles, particularly through 3D printing, highlighting their potential in transdermal drug delivery but reporting no new results.

This review explores recent advancements in skin tissue engineering using 3D bioprinting, discussing current methods, bioink formulations, and outlining both achievements and limitations without presenting new clinical results.

In this study, an innovative composite hydrogel incorporating methylene blue-loaded nanoparticles was developed for 3D-printed wound dressings, showing improved mechanical properties, excellent antibacterial effects, and enhanced skin healing in mice.

This review discusses the advancements and challenges in skin bioprinting techniques and applications, including hair follicles and pigmentation, while addressing the need for improvements in vascularization, safety, and clinical translation, according to the authors.

This study found that 3D-printed polyamine-modified hydrogels facilitate M2 macrophage polarization and exosome secretion, enhancing skin cell compatibility and promoting wound healing and hair follicle induction in an animal model through specific signaling pathways, suggesting potential for skin disorder therapies.

This review highlights the growing use of 3D printing in healthcare, specifically its impact on plastic surgery and prosthetic devices, and stresses the need for further research to address existing knowledge gaps.

This study found that GelMA/HAMA bioink shows promise for 3D printing skin equivalents, as it effectively mimics the native skin's properties and supports hair follicle structure development.

This study explores the use of bioinspired 3D printed hollow microneedles, which may offer improved delivery of anti-wrinkle formulations, and reviews the current landscape and challenges of existing wrinkle treatments and microneedle technology.

This study found that a 3D co-culture of endothelial colony-forming cells and adipose-derived stem cells restored stem cell properties and improved healing in a mouse model of chronic injury.

This review discusses the potential of bioprinting technology in cosmetology, particularly for improving skin functions like pigmentation restoration and hair follicle development, but reports no new clinical findings.

This study demonstrated that customized microneedle arrays can precisely induce targeted hair regeneration and improve hair quality in mice, potentially offering a personalized treatment approach for hair loss.

This study examined 3D-printed scaffolds coated with polydopamine and observed that they significantly enhanced osteogenesis and angiogenesis in vitro and in a rat cranium defect model, suggesting their potential for repairing large bone defects.

This study demonstrated that a 3D bioprinting technique using a gelatin/alginate hydrogel scaffold can regenerate entire hair follicles in mice, offering potential advancements in hair loss treatment.

This study found that 3D spheroid culture reprogrammed mesenchymal stem cells into a uniform immunosuppressive phenotype, suggesting potential therapeutic applications for inflammatory diseases like psoriasis.

This study demonstrated that hyaluronan gel is a promising biomaterial for 3-D in vitro culture of mouse ovarian follicles, supporting the production of fertilizable metaphase II oocytes.

This review discusses 3D printing developments in topical delivery systems, highlighting the potential for 3D printed microneedles to become prominent in personalized cosmetic applications, but reports no new experimental results.