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Lee JO, Kim Y, Lee JM, Suk JM, Jung I, Choi SY, Yoo KH, Seok J, Kim BJ. AP collagen peptides (APCPs) promote hair growth by activating the GSK-3β/β-catenin pathway and improve hair condition. Exp Dermatol 2024; 33:e15137. [PMID: 39031460 DOI: 10.1111/exd.15137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 03/13/2024] [Accepted: 03/22/2024] [Indexed: 07/22/2024]
Abstract
AP collagen peptides (APCPs) are enzymatically decomposed collagen peptides that contain tri-peptides such as glycine-proline-hydroxyproline. We found that APCPs increased the proliferation of both human dermal papilla cells (hDPCs) and human outer root sheath cells (hORSCs). APCPs also stimulated the secretion of several growth factors, including IGFBP-6, PDGF-AB, PIGF and VEGF in hDPCs. Moreover, APCPs enhanced the phosphorylation of Akt(Ser473), GSK-3β(Ser9) and β-catenin(Ser675), indicating the activation of the GSK-3β/β-catenin signalling pathway. Ex vivo culture of human hair follicles (hHFs) tissue and in vivo patch assay revealed that APCPs promoted the elongation of hHFs and the induction of new hair shafts. In a mouse model, APCPs significantly promoted the transition from telogen to anagen phase and prolonged anagen phase, resulting in increased hair growth. APCPs also improved the thickness, amino acid content (cystine and methionine) and roughness of mouse hair. Taken together, these findings demonstrate that APCPs accelerate hair growth and contribute to overall hair health. Therefore, APCPs have the potential to be utilized as a food supplement and ingredient for preventing hair loss and maintaining hair health.
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Affiliation(s)
- Jung Ok Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Yujin Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Jung Min Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
| | - Jang Mi Suk
- Global Medical Research Center, Seoul, Korea
| | - Inhee Jung
- Global Medical Research Center, Seoul, Korea
| | - Sun Young Choi
- Department of Dermatology, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine, Gyeonggi-do, Korea
| | - Kwang Ho Yoo
- Department of Dermatology, Chung-Ang University Gwang-Myeong Hospital, Chung-Ang University College of Medicine, Gyeonggi-do, Korea
| | - Joon Seok
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul, Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
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Sahraoui PF, Vadas O, Kalia YN. Non-Invasive Delivery of Negatively Charged Nanobodies by Anodal Iontophoresis: When Electroosmosis Dominates Electromigration. Pharmaceutics 2024; 16:539. [PMID: 38675200 PMCID: PMC11055110 DOI: 10.3390/pharmaceutics16040539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Iontophoresis enables the non-invasive transdermal delivery of moderately-sized proteins and the needle-free cutaneous delivery of antibodies. However, simple descriptors of protein characteristics cannot accurately predict the feasibility of iontophoretic transport. This study investigated the cathodal and anodal iontophoretic transport of the negatively charged M7D12H nanobody and a series of negatively charged variants with single amino acid substitutions. Surprisingly, M7D12H and its variants were only delivered transdermally by anodal iontophoresis. In contrast, transdermal permeation after cathodal iontophoresis and passive diffusion was
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Affiliation(s)
- Phedra Firdaws Sahraoui
- School of Pharmaceutical Sciences, University of Geneva, CMU-1 Rue Michel Servet, 1211 Geneva, Switzerland;
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-1 Rue Michel Servet, 1211 Geneva, Switzerland
| | - Oscar Vadas
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, CMU-1 Rue Michel Servet, 1211 Geneva, Switzerland;
| | - Yogeshvar N. Kalia
- School of Pharmaceutical Sciences, University of Geneva, CMU-1 Rue Michel Servet, 1211 Geneva, Switzerland;
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-1 Rue Michel Servet, 1211 Geneva, Switzerland
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Mikhalchik EV, Morozova OV, Tsimbalenko TV, Kharaeva ZF, Balabushevich NG, Lipatova VA, Gadzhigoroeva AG. Analysis of Cytokines and ATP in Plucked Hair Follicles. Bull Exp Biol Med 2021; 170:299-302. [PMID: 33452973 DOI: 10.1007/s10517-021-05055-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Indexed: 10/22/2022]
Abstract
The concentrations of ATP, IL-6, and IL-10 were measured in extracts of plucked hair follicles from healthy volunteers (normal values) and patients with androgenetic alopecia and then, ATP, IL-6, and IL-10 content was calculated for each follicle. The resulting values were directly proportional to hair follicle length, except for IL-6. The concentration of extracted ATP correlated with lactate dehydrogenase activity indicating cell damage. In patients with androgenetic alopecia, IL-10 content exceeded the normal values in follicles with a length <1 mm and ATP content surpassed the normal in follicles >2 mm long. The content of IL-6 and IL-10 measured by ELISA was comparable with results of mRNA expression assayed by RT-PCR, which attested to moderate level of gene expression. The content of ATP and IL- 10, but not IL-6 depended on the length of plucked hair follicle and on pathogenetic factors affecting hair growth.
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Affiliation(s)
- E V Mikhalchik
- Federal Research Clinical Center of Physical-Chemical Medicine, Federal Medical-Biological Agency of Russia, Moscow, Russia.
| | - O V Morozova
- Federal Research Clinical Center of Physical-Chemical Medicine, Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - T V Tsimbalenko
- Moscow Practical Center of Dermatovenerology and Cosmetology, Moscow Healthcare Department, Moscow, Russia
| | - Z F Kharaeva
- H. M. Berbekov Kabardino-Balkarian State University, Nalchik, Kabardino-Balkarian Republic, Russia
| | - N G Balabushevich
- Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - V A Lipatova
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A G Gadzhigoroeva
- Moscow Practical Center of Dermatovenerology and Cosmetology, Moscow Healthcare Department, Moscow, Russia
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Histology and ultrastructure of transitional changes in skin morphology in the juvenile and adult four-striped mouse (Rhabdomys pumilio). ScientificWorldJournal 2013; 2013:259680. [PMID: 24288469 PMCID: PMC3830898 DOI: 10.1155/2013/259680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 09/19/2013] [Indexed: 11/25/2022] Open
Abstract
The four-striped mouse has a grey to brown coloured coat with four characteristic dark stripes interspersed with three lighter stripes running along its back. The histological differences in the skin of the juvenile and adult mouse were investigated by Haematoxylin and Eosin and Masson Trichrome staining, while melanocytes in the skin were studied through melanin-specific Ferro-ferricyanide staining. The ultrastructure of the juvenile skin, hair follicles, and melanocytes was also explored. In both the juvenile and adult four-striped mouse, pigment-containing cells were observed in the dermis and were homogeneously dispersed throughout this layer. Apart from these cells, the histology of the skin of the adult four-striped mouse was similar to normal mammalian skin. In the juvenile four-striped mouse, abundant hair follicles of varying sizes were observed in the dermis and hypodermis, while hair follicles of similar size were only present in the dermis of adult four-striped mouse. Ultrastructural analysis of juvenile hair follicles revealed that the arrangement and differentiation of cellular layers were typical of a mammal. This study therefore provides unique transition pattern in the four-striped mouse skin morphology different from the textbook description of the normal mammalian skin.
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Immunolocalization of junctional proteins in human hairs indicates that the membrane complex stabilizes the inner root sheath while desmosomes contact the companion layer through specific keratins. Acta Histochem 2013; 115:519-26. [PMID: 23312593 DOI: 10.1016/j.acthis.2012.11.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 11/26/2012] [Accepted: 11/27/2012] [Indexed: 12/27/2022]
Abstract
The inner root sheath (IRS) sustains and addresses the hair shaft outside the follicle. Ultrastructural analysis of immunolabeling for beta-catenin, plakophilin-1, desmoglein-4 and keratin-17 in human hairs has indicated that adherens junctions and desmosomes initially connect cells in mature IRS and the companion layer. Beta-catenin immunolabeling for adherens junctions is only seen in sparse regions of differentiating Huxley cells, Flugelzellen cells and Henle cells, but disappears in cornified cells of the IRS. Desmoglein-4 and plakophilin-1 immunolabeling are observed in differentiating and cornified desmosomes of the Huxley and Henle layers and in the membrane complex joining these cells. Desmoglein-4 and plakophilin-1 are more frequently immunolocalized in the intracellular side of the junctions, but some labeling is also present in the delta-layer of the membrane complex. The labeling indicates a prevalent intracellular redistribution of desmoglein-4 and plakophilin-1 when the final cornification of the IRS occurs. Intense keratin-17 immunolabeling is observed in tonofilaments of the companion layer joining the plakophilin-1 rich desmosomes of the Henle layer. This suggests that this elastic type of keratin is present at desmosome junctions during the movements of the companion layer along the slippage plane of the hair shaft.
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He Y, Cheng L, Wang J, Liu X, Luo Y. Identification of the secondary follicle cycle of Hexi cashmere goat. Anat Rec (Hoboken) 2012; 295:1520-8. [PMID: 22753049 DOI: 10.1002/ar.22522] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Accepted: 06/04/2012] [Indexed: 11/11/2022]
Abstract
This experiment conducted to identify a periodic change of ultrastructures of secondary follicle characteristics during a whole year, reveal the molecule regulation of growth of cashmere. A total of 10 cashmere goats of 1-year old were studied. The paraffin section and ultrathin slices of skin were made each month in a whole year, observed, photographed, and analyzed under light microscope and transmission electron microscope after stained. Following the development of down fiber, the ultrastructures of secondary follicle of Hexi cashmere goat showed a periodic change within a year. There were five different periods during a down fiber cycle. It was observed that the stage of telogen, proanagen, anagen, procatagen, and catagen was in January and February, March and April, May to August, September and October, and November and December, respectively. The key change observed in secondary follicle under transmission electron microscope was inner root sheath. This study illustrated the five different stage of secondary follicle of Hexi Cashmere goat within a whole growth cycle, and has provided more detailed information about the research field of Hexi cashmere goat. Choosing the suitable time to harvest the cashmere may get the profit maximization.
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Affiliation(s)
- Yanyu He
- Gansu Key Laboratory of Herbivorous Animal Biotechnology, Instrumental Research and Analysis Center, Gansu Agricultural University, Lanzhou 730070, China
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