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This literature review highlights recent advancements in hair follicle regeneration techniques, noting the potential of combining stem cell technology, 3D bioprinting, and epigenetic modulation to create precision therapies. However, it emphasizes ongoing challenges such as achieving long-term viability and scalability for clinical application.

In this study, researchers used a 3D in vitro organ culture system to show that rifampicin-loaded lipid nanocapsules can penetrate hair follicles more effectively than free rifampicin, highlighting the potential advantage of nanocarrier-based antibiotic treatments for follicular infections.

This source reviews the potential of 3D printing, biomaterials, and smart sensors in tissue engineering, noting their application in creating artificial membranes for skin and tissue regeneration and assessing their strengths and limitations for wound dressing development and disease modeling.

This study found that the human placenta extracellular matrix hydrogel restored the hair-inductive capacity of high-passaged dermal papilla cells, enabling them to regenerate new hair follicles when co-grafted with mouse epidermal cells.

In this study, post-treatment with DCO was found to speed up epidermal wound healing after micro-needling of 3D skin models while maintaining the treatment's immunostimulatory benefits, potentially optimizing aftercare and reducing patient recovery time.

This review explores how combining extracellular vesicles with hydrogels and utilizing 3D bioprinting technologies creates innovative composite systems for wound healing, offering advanced mechanical and biological support, while addressing challenges like degradation and regulatory issues in clinical applications.

This study observed that tissue-engineered skin, using VEGF165 gene-modified cells embedded in astragalus polysaccharide-containing 3D printed scaffolds, enhanced early vascularization, and collagen and hair follicle regeneration, leading to improved skin repair in nude mice with full skin defects.

This research found that keratin hydrogels derived from human hair may support cell viability and proliferation, indicating potential as 2D and 3D soft tissue culture scaffolds.

This review outlines various 3D bioprinting techniques and bioinks used for creating artificial tissues and organs, emphasizing their potential in addressing organ transplant shortages and advancing drug testing, while acknowledging existing challenges and future prospects.

This review explores the application and implications of 3D bioprinting in plastic surgery but reports no new clinical results, emphasizing its potential benefits and challenges for future research.

Innovative methods are reducing animal testing and improving biomedical research.

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.

In this study, researchers developed a new 3D skin equivalent assay using mouse epidermal and dermal cells that successfully regenerated organized hair follicles, outperforming a 2D model in hair follicle orientation and quantity, and enhanced hair growth when Wnt3a was added.

This review introduces a framework to integrate bioinspired conductive materials and advanced 3D/4D printing in regenerative medicine for dynamic, responsive tissue regeneration, emphasizing the potential of smart scaffolds to adapt to physiological cues.

This review describes bioengineering strategies to mimic the natural cell microenvironment in vitro, emphasizing the novel approach of using cell-synthesized extracellular matrix as a scaffold for engineering functional 3D tissues, while highlighting the limitations of exogenous scaffolds in tissue engineering.

This review examines recent advancements in electrospun nanofibers for wound healing applications, but reports no new experimental results, highlighting their potential in sutures, dressings, and skin regeneration.

This review provides an overview of recent tissue engineering and regenerative medicine developments in Asia, highlighting significant advances, representative research achievements, and discussing future directions, without presenting new research results.

This review discusses current experimental approaches for regenerating human hair follicles using tissue engineering and isolated cells, but reports no successful strategies with adult cells yet found.

This review discusses strategies to enhance mesenchymal stem cell therapy effectiveness but reports no new clinical results; it highlights the need for improved consistency and efficacy in MSC-based treatments.

This review discusses recent research and applications of RADA16 and RADA16-based peptide scaffolds in biomedicine, including their roles in tissue repair and drug delivery, but reports no new clinical results.

This article discusses a wide range of procedures in facial plastic surgery and highlights the recent advancements and trends without reporting new clinical findings.

This study found that human hair follicle dermal cells, specifically dermal sheath cells, can serve as an alternative and potentially superior cell source for constructing the dermal component of bioengineered skin in both in vitro and in vivo settings.

This review discusses the potential of three-dimensional printed mesoporous scaffolds for drug delivery applications, particularly for bone cells and tissues, but reports no 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 potential of adipose-derived stem cells for treating vitiligo, hair loss, and chronic wound healing, but reports no new clinical results and suggests the need for further investigation.

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 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 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 study found that a titrated extract of Centella asiatica enhanced the hair growth potential of 3D spheroid cultured human dermal papilla cells.

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.