Background: The ceramide is known to play an important role in the formation of intracellular lipids, and play a crucial role as a barrier for skin and hair cuticle. Recent study has revealed that ceramide has potential effect on hair growth in a mouse model. However, the role of ceramide in human dermal papilla cells (hDPCs) known to play an important role in hair growth is not well understood yet.
Objective: The goal of this study was to investigate the effect of synthetic ceramides (oleyl and stearyl ceramides) on hair growth using hDPCs.
Methods: hDPCs were treated with synthesized ceramides. hDPCs viability was evaluated by MTT assay. The expression of hair growth related factors were investigated by western blot, real-time polymerase chain reaction and growth factor array. The expression of β-catenin was confirmed by immunofluorescence.
Results: Treatment with ceramides increased the expression of proteins affecting cell proliferation such as Bcl-2, BAX, phosphorylated-ERK and Cyclin D1. Also, ceramides treatment were increased the expression of several growth factors, including epidermal growth factor family, and promote the expression of Wnt/β-catenin and BMP2/4 signaling.
Conclusion: Our data suggest that synthetic ceramides stimulates hair growth by induction proliferation of hDPCs via modulation of Wnt/β-catenin and BMP2/4 signaling.
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http://dx.doi.org/10.5021/ad.2019.31.2.164 | DOI Listing |
Hortic Res
January 2025
State Key Laboratory of Crop Genetics & Germplasm Enhancement, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, No.1 Weigang Road, Xuanwu District, Nanjing 210095, China.
Root development is a complex process involving phytohormones and transcription factors. Our previous research has demonstrated that is significantly expressed in Bok choy roots under salt stress, and heterologous expression of increases salt tolerance and promotes root development in transgenic . However, the precise molecular mechanisms by which BcWRKY33A governs root development remain elusive.
View Article and Find Full Text PDFBMC Endocr Disord
January 2025
Faculty of Medicine and Health Sciences, Department of Obstetrics and Gynaecology, University of Zimbabwe, P. O. Box A178, Avondale, Harare, Zimbabwe.
Background: Proper planning of reproductive health needs for HIV-infected adolescents requires a clear understanding of the effects of HIV infection on adolescents' pubertal development.
Objective: To assess the effects of HIV infection on the hypothalamic-pituitary-ovarian (HPO) axis, ovarian reserve and pubertal development in adolescent girls at a tertiary hospital in Zimbabwe.
Methods: This was a cross-sectional survey of HIV-infected adolescent girls aged 10-19 years, with available CD4 + count results at a tertiary hospital in Zimbabwe.
J Stem Cells Regen Med
November 2024
Medical Doctor Study Program, Faculty of Medicine, Universitas Nahdlatul Ulama, Surabaya, Indonesia.
Ultraviolet (UV) exposure causes direct and indirect damages to skin structures. Human adipose stem cell-conditioned medium (hASC-CM) is a collection of several soluble factors, such as cytokines, chemokines, and Growth Factors (GF), secreted by almost all living cells in the extracellular space which support wound healing and skin rejuvenation. To determine the effects of human adipose stem cell-conditioned medium (hASC-CM) in photoaged skin and evaluate photoaging improvement after treatment.
View Article and Find Full Text PDFAdv Exp Med Biol
January 2025
Department of Physiology, Faculty of Medicine, Muğla Sıtkı Koçman University, Muğla, Turkey.
Skin regeneration, repair, and the promotion of hair growth are intricate and dynamic processes essential for preserving the overall health, functionality, and appearance of both skin and hair. These processes involve a coordinated interplay of cellular activities and molecular signaling pathways that ensure the maintenance and restoration of skin integrity and hair vitality. Recent advancements in regenerative medicine have underscored the significant role of mesenchymal stem cell (MSC)-derived exosomes as key mediators in these processes.
View Article and Find Full Text PDFBr J Dermatol
January 2025
Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan.
The ability to grow long scalp hair is a distinct human characteristic. It probably originally evolved to aid in cooling the sun-exposed head, although the genetic determinants of long hair are largely unknown. Despite ancestral variations in hair growth, long scalp hair is common to all extant human populations, which suggests its emergence before or concurrently with the emergence of anatomically modern humans (AMHs), approximately 300 000 years ago.
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