June 2026 in “Frontiers in Immunology” This review synthesizes both traditional and emerging molecular mechanisms of tissue remodeling across different organs, aiming to establish a theoretical basis for precision interventions in pathological conditions, according to the authors.
June 2026 in “Frontiers in Cell and Developmental Biology” In this study, researchers used single-cell RNA sequencing to map the hair follicle microenvironment in fine-wool sheep, identifying specific cell types and gene expressions that influence wool fiber diameter, with dermal papilla cells playing a significant role in hair follicle development.
April 2026 in “Frontiers in Cell and Developmental Biology” This study found that CD200-negative human hair follicle bulge cells have a higher hair-regenerative capability compared to CD200-positive cells, suggesting that reduced CD200 expression may enhance hair regeneration, providing insights for improving bulge cell-based hair restoration techniques.
This study highlights that azelaic acid, initially recognized for skin hypopigmentation, shows potential in treating various skin conditions due to its complex mechanisms, even though these are not yet fully understood, indicating a need for further research.
October 2025 in “HAL (Le Centre pour la Communication Scientifique Directe)” This research observed that, in domestic cats like Maine Coon and Rex breeds, a "piebald" coat color pattern is likely influenced by the Silver locus, although the specific mutations involved are yet to be published.
August 2025 in “Kırıkkale Üniversitesi Tıp Fakültesi Dergisi” In this case study, researchers described a 47-year-old male with diabetes mellitus who developed inflammatory nevus comedonicus on his forehead, suggesting a potential link between this skin condition and diabetes. They recommend monitoring similar patients for diabetes and conducting studies to explore this association further.
This study found that intrinsic feedback loops are crucial for maintaining the function of human dermal papilla cells during hair growth, highlighting the importance of autocrine signaling and niche reprogramming for advancing hair follicle biology and regenerative therapies for hair loss.
In this study, human dermal papilla cells exposed to wasabi leaf extract showed changes in cytokine-related gene expression, which the authors suggest could help clarify the biological effects of wasabi.
April 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” In a keratinocyte-specific knockout mouse model, this study found that deleting GRK2 disrupted hair follicle homeostasis, causing cyst-like structures, abnormal growth patterns, and eventual hair loss, suggesting potential links to immune-mediated alopecias.
January 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” In this study, the researchers found that deleting ceramide synthase 4 in the skin's epidermis alters stem cell differentiation, disrupting hair follicle structure and barrier function, potentially leading to immune responses similar to atopic dermatitis.
December 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that AP-2α and AP-2β transcription factors are crucial for maintaining adult skin homeostasis, with their inactivation in keratinocytes leading to impaired differentiation, hair abnormalities, and inflammation, highlighting their key regulatory roles.
November 2023 in “npj regenerative medicine” This study found that engineered reconstituted skin can form morphogenetic units that promote tissue patterning and hair regeneration, with certain signaling pathways restoring this ability in adult and fetal cells.
October 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study constructed a comprehensive atlas of prenatal human skin, revealing that innate immune cells, such as macrophages, play a crucial role in skin morphogenesis by interacting with non-immune cells, influencing hair follicle formation and angiogenesis beyond their traditional immune functions.
September 2023 in “Asian journal of beauty & cosmetology” In this review paper, the authors explored the composition and role of lipids in human hair, highlighting their importance for hair texture, moisture retention, and tensile strength, while noting that the understanding of hair lipids' functions remains controversial and requires further research.
August 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that maintaining a low level of Wnt/β-catenin activity is crucial for mammary gland development, as excessive activity inhibits branching and promotes characteristics of hair follicles instead, highlighting its role in skin appendage identity decisions.
August 2023 in “Research Square (Research Square)” This study found that two microRNAs, oar-miR-23b and oar-miR-133, inhibit the development of hair follicles in superfine wool sheep by targeting genes involved in key signaling pathways, suggesting their potential use as molecular markers for breeding fine wool sheep.
June 2023 in “Juan Cuevas eBooks” This volume is part of a series intended to educate plastic and reconstructive surgeons, residents, and other medical professionals, but the abstract does not report specific research findings.
In this case report, researchers diagnosed a 12-year-old girl with a nevus sebaceus of Jadassohn, characterized by a yellowish-pink plaque on the scalp and a genetic variant, following previous misdiagnosis as alopecia areata.
April 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study identifies key transcriptomic features and a necessary dermal niche for eccrine gland development, advancing potential regenerative approaches for these vital skin appendages.
July 2022 in “Research Square (Research Square)” This study found that miR-23b and miR-133 significantly reduce mRNA and protein levels of specific target genes involved in Merino sheep hair follicle development, providing insight into molecular breeding for fine wool production.
This genetic study identified a potential interval for the Marie Unna hypotrichosis gene but found no mutations in the nearby hr gene, suggesting its involvement remains unconfirmed.
July 2021 in “Advances in laboratory medicine” This article reviews differential diagnosis approaches for 46,XY DSD, proposing a diagnostic algorithm focused on biochemical and genetic data, without presenting new clinical results.
January 2021 in “Journal of cosmetology & trichology” This study suggests that L-(+)-Tartaric Acid may support hair growth by up-regulating certain genes in human Dermal Papilla cells, making it a potentially useful additive in minoxidil formulations.
September 2019 in “Journal of Investigative Dermatology” This study found that mosaic mutations in the CARD14 gene are linked to inflammatory linear verrucous epidermal naevus in two patients, who experienced significant improvement with the IL12/IL23 inhibitor Ustekinumab.
September 2019 in “Journal of Investigative Dermatology” This study suggests that subtle modifications in ribosomal RNA methylation may influence cellular physiology and contribute to ribosome specialization in senescent human dermal fibroblasts.
September 2019 in “Journal of Investigative Dermatology” This study found that polyamine levels were higher in the vertex hair than in occipital hair among patients with pattern baldness, suggesting a relation to hair loss development in the scalp's vertex region.
January 2018 in “Stem cell biology and regenerative medicine” This review discusses the interplay between signaling/transcription factor-mediated and epigenetic mechanisms in skin development and regeneration, highlighting the need for further exploration of epigenome reorganization in these processes.
In this study, a clear pattern of selective sweep was observed for the SLC24A5 gene, with high linkage disequilibrium and low haplotype diversity, but no clear correlation with UV radiation intensity was found.
January 2017 in “Springer eBooks” The document concludes that scalp health is influenced by complex factors affecting sebaceous glands, including hormones, aging, and various substances.
This study found that Avicennia marina extract and its active compound avicequinone C inhibit enzymes and receptors related to androgenic alopecia, potentially supporting hair growth in cultured dermal papilla cells.