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Human melanocytes in skin and hair follicles don't express keratin 16 or 6 naturally.

This study found that stem cells derived from root apical papilla in extracted wisdom teeth demonstrated the strongest potential for osteogenic differentiation compared to those from dental pulp and dental follicle.

This case report documents the first known occurrence of an epidermoid cyst in the mammary gland of a 12-year-old female dog. The study emphasizes its benign nature but notes the potential for misdiagnosis and importance for pathologists to consider it during examinations.

This study found that Thy1+ keratinocytes in the basal layer of the interfollicular epidermis play a crucial role in epidermal homeostasis and wound repair, with their ablation impairing these processes.

This report describes cases of trichoblastoma and trichoepithelioma in mixed-breed dogs, highlighting their distinct microscopic characteristics without suggesting broader clinical implications.

This study found that inhibiting C/EBP transcription factors in mouse skin reduced papilloma formation and caused systemic hair loss, suggesting C/EBP may be a potential therapeutic target.

This study found that CD90+ stem cells with fibroblast-like morphology are present in the lower part of the anagen hair follicle in dogs.

This report describes two rare cases of desmoplastic melanoma presenting as alopecia neoplastica, highlighting a potential diagnostic pitfall for clinicians examining patients with scar-like alopecia.

In this study, oral etretinate resulted in increased hair length and loss of beading in a childhood monilethrix case, while the scalp's keratosis pilaris persisted.

This case series highlights that nail clipping can aid in early detection and surgical planning of onychomatrical tumors by distinguishing between benign and potentially malignant growths based on the cavities' average dimensions.

The researchers reported that the OVOL1-OVOL2 axis may play a role in hair follicle differentiation and tumorigenesis, and OVOL1 and OVOL2 are potential diagnostic markers for pilomatricoma and pilomatrix carcinoma.

This study suggests that Mcl-1 has a non-apoptotic role in promoting keratinocyte proliferation and Wnt/β-catenin signaling, potentially indicating a novel oncogenic activity.

This study found that CD90+ cells, resembling mesenchymal stem cells, are abundantly present in the lower part of anagen hair follicles in dogs.

This study discovered a conserved "fiber-like-motif" of melanosomes aligned in hair across various mammalian species, shedding light on the internal structure that influences hair's thermal and mechanical properties.

In this case report, a rare melanotrichoblastoma tumor was identified in a 51-year-old female following the histological and immunohistochemical analysis of a lesion on the pubo-inguinal area, presenting with strong epithelial marker positivity and a low proliferative index.

This case report describes a 29-year-old Japanese man with follicular mucinosis, suggesting nestin-positive, multipotent hair follicle stem cells may be involved in reticular epithelial degeneration of the outer root sheath.

In this case study, a 15-year-old obese boy was diagnosed with acanthosis nigricans and hair casts in the axillae, with Wood's lamp and dermoscopic examination revealing specific features, yet fungal infection was ruled out through a negative KOH test.

This study found that the keratin expression in basal cell carcinoma resembles that of the pilosebaceous apparatus, with uniform presence of certain keratins in all cases.

This study found that keratin expression patterns vary within nail unit structures, with the nail matrix uniquely expressing the acidic hair-type keratin Ha1.

This study reports new fluorogenic ceramidase substrates and highlights RBM14C24:1 as an efficient substrate for neutral ceramidase, while RBM15C18:1 is the best probe for measuring ACER1 and ACER2 activities, potentially aiding high-throughput screening for ceramidase inhibitors.

In this study, researchers observed that trichocytic and epithelial cytokeratins have distinct expression patterns within various human and bovine hair follicle cells, contributing to understanding hair follicle development and growth.

This study found that Blimp1+ cells from mice can generate sebaceous gland organoids in vitro, which mimic natural gland traits and may aid in studying acne vulgaris.

Highly active but fewer CD14+CD16- monocytes are found in Alopecia Areata patients, regardless of severity.

This study demonstrated that keratin K124 is specific to equine hoof lamellar tissue and established monoclonal antibodies that can specifically recognize K124 without cross-reacting with other tissues.

This study observed that in mouse hair follicles, enzymes Aldh1a2 and Aldh1a3 have distinct expression patterns that suggest they are involved in different signaling pathways during the hair cycle.

In this clinical case study, a 9-year-old girl was diagnosed with monilethrix, a hereditary hair shaft disorder characterized by weak, beaded hair, with management focusing on minimizing hair trauma.

This study found that epidermal stem cells in nonglabrous skin are connected to the distal end of the arrector pili muscle, which may play a role in epidermal renewal and wound healing.