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This review discusses recent advances in the role of dermal papilla cells and adipocyte lineage cells in hair regeneration, but it reports no new clinical results.

In this study, researchers observed that African spiny mice, Acomys cahirinus, are capable of regenerating skeletal muscle in dermal wound sites, unlike common mice, Mus musculus.

This review discusses the role of dermal macrophages in stress-induced hair regeneration and reports no new clinical findings, highlighting the need for further research into macrophage dynamics for potential hair loss therapies.

This review highlights that T cells are crucial in regulating hair follicle regeneration and their disruption can lead to alopecia, providing insights into hair disorders related to T cell immune balance and hair follicle regeneration.

This study suggests that hair follicle dermal stem/progenitor cells play a key role in both hair regeneration and skin wound healing, with potential implications for preventing hair follicle miniaturization linked to aging or alopecia.

In this study, researchers discovered that HEY2+ dermal papilla cells exhibit stemness and contribute to dermal regeneration during wound healing, as shown by the expression of a reporter gene in regenerated dermal cells of tamoxifen-induced transgenic mice.

This study suggests that a novel micropatterned dermal–epidermal matrix (μDERM) enhances keratinocyte function and epidermal morphology, offering potential improvements in skin substitute design for wound healing applications.

This study found that a newly developed hemi-vascularized sandwich method significantly improved the regeneration and maturity of hair follicles compared to other transplantation approaches in rat models.

This study found that silk fibroin/sodium alginate scaffolds seeded with dermal papilla cells may accelerate skin repair and hair follicle regeneration in a rat model.

This study reported that Hedgehog signaling in papillary fibroblasts is crucial for hair follicle regeneration during wound healing, emphasizing its potential for developing regenerative therapies in scarring wounds.

This study found that dermal papilla cells cultured in vitro can promote hair follicle regeneration and maintain hair growth, with stronger ET-1 and SCF expression enhancing this regenerative ability.

In this study, researchers found that myeloid cells can convert into keratinocytes during wound healing and contribute to hair follicle regeneration in mice.

This review discusses the role of fibroblast heterogeneity in determining skin scarring versus regeneration and reports no new results, highlighting opportunities for developing antiscarring therapies.

This study suggests that the postnatal loss of hair follicle formation in wounds may be due to elevated Wnt/β-catenin activation in the dermis, affecting fibroblast function in mice.

This study found that poly(ethylene-co-vinyl alcohol) membranes support the self-assembly of dermal papilla cells into compact spheroidal microtissues capable of inducing new hair follicles, suggesting potential for large-scale production for hair follicle regeneration.

In this study, microporous electrospun scaffolds pre-seeded with dermal fibroblasts accelerated wound healing and improved dermal matrix structure and hair follicle regeneration compared to acellular scaffolds in a rat model.

This study found that proteins secreted by early-passage dermal papilla cells, including SDF1, MMP3, biglycan, and LTBP1, may play significant roles in hair follicle regeneration.

This study found that using layer-by-layer encapsulation techniques on dermal papilla cells can support their function and may help treat hair loss when used in conjunction with freshly isolated epidermal cells.

This study found that knockdown of PCAT1 inhibited hair follicle regeneration in nude mice by disrupting the miR-329/Wnt10b axis and Wnt/β-catenin signaling, highlighting PCAT1's role in promoting follicle regrowth.

This study suggests that the long noncoding RNA H19 helps dermal papilla cells maintain their hair follicle-inducing ability by activating the Wnt signaling pathway, potentially offering a therapeutic target for androgenetic alopecia.

In this study, knockdown of XIST in 3D-cultured dermal papilla cells inhibited hair follicle regeneration by interfering with miR-424 and hedgehog signaling, highlighting XIST's role in hair development.

This study found that biglycan, a protein secreted by dermal papilla cells, plays a critical role in hair follicle cycle regulation and regeneration in mice by activating the Wnt/β-catenin signalling pathway, suggesting its potential as a treatment target for hair loss.

This study found that injecting a mixture of epidermal stem cells and dermal papilla cells can induce hair follicle regeneration and well-ordered epidermis formation in mice.

This study found that applying 10% platelet-rich plasma significantly increased hair follicle density and reduced the time for hair formation in a mouse model compared to no PRP treatment.

This study found that implanting microencapsulated dermal papilla cells in rat ears led to hair follicle regeneration, suggesting a potential alternative to fresh isolated dermal papillae for inducing hair growth.

This study used cashmere goats to map the differentiation of dermal papilla stem cells and identified key intermediate cell states involved in hair follicle regeneration.

This study found that injectable platelet-rich fibrin (i-PRF) enhances hair follicle regeneration in vitro by promoting human dermal papilla cell proliferation, migration, and trichogenic inductivity, with varying effects depending on concentration.

In this study, researchers observed that exposure to low-frequency electromagnetic fields enhanced hair follicle regeneration and formation of hair follicle-like structures in bioengineered skin in nude mice.

The researchers in this study identified a new subpopulation of dermal fibroblasts in neonatal murine dermis marked by EGFR, which they report contributes to hair follicle regeneration through the promotion of IGF1, potentially aiding in wound-induced hair follicle neogenesis.

Delivering specific cell clusters into the skin can help regrow hair in mice.