201
|
Effects of CO2 fractional laser on hair growth in C57BL/6 mice and potential underlying mechanisms. Chin Med J (Engl) 2019; 132:1257-1260. [PMID: 30913066 PMCID: PMC6511434 DOI: 10.1097/cm9.0000000000000220] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Supplemental Digital Content is available in the text
Collapse
|
202
|
Ginsenoside Rb1 promotes the growth of mink hair follicle via PI3K/AKT/GSK-3β signaling pathway. Life Sci 2019; 229:210-218. [PMID: 31102746 DOI: 10.1016/j.lfs.2019.05.033] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/29/2019] [Accepted: 05/13/2019] [Indexed: 12/20/2022]
Abstract
AIMS Hair follicles play a critical role in the process of hair growth. The dermal papilla cells (DPCs) are an important component in the hair follicle regeneration and growth. This study investigated the effects of ginsenoside Rb1 on the growth of cultured mink hair follicles and DPCs. MAIN METHODS The mink hair follicles were treated with ginsenoside Rb1 for 9 days and their lengths were measured every three days. Real-time PCR was used to determine the mRNA expression of vascularization endothelial growth factor A (VEGF-A), VEGF receptor 2 (VEGF-R2) and TGF-β1. In addition, the levels of proteins were detected by western blot. Cell proliferation was determined by immunofluorescence staining of proliferation marker Ki-67 and cell cycle analysis was performed on flow cytometry. Moreover, cell migration was evaluated by wound healing assay. KEY FINDINGS Ginsenoside Rb1 promoted the growth of hair follicles, and proliferation and migration of DPCs. Ginsenoside Rb1 improved the expression levels of VEGFA and VEGF-R2, while attenuated the TGF-β1 expression both in hair follicles and DPCs. Furthermore, ginsenoside Rb1 facilitated the activation of PI3K/AKT/GSK-3β signaling pathway in hair follicles and DPCs. SIGNIFICANCE The results reveals a crucial role of PI3K/AKT/GSK-3β signaling pathway in ginsenoside Rb1-induced growth of hair follicles and DPCs.
Collapse
|
203
|
Nam GH, Jo KJ, Park YS, Kawk HW, Yoo JG, Jang JD, Kang SM, Kim SY, Kim YM. Bacillus/Trapa japonica Fruit Extract Ferment Filtrate enhances human hair follicle dermal papilla cell proliferation via the Akt/ERK/GSK-3β signaling pathway. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 19:104. [PMID: 31088549 PMCID: PMC6518747 DOI: 10.1186/s12906-019-2514-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/26/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Despite advances in medical treatments, the proportion of the population suffering from alopecia is increasing, creating a need for new treatments to control hair loss and prevent balding. Treatments based on plant-derived compounds could potentially prevent hair loss. Human hair follicle dermal papilla (HDP) cells, a type of specialized fibroblast in the hair bulb, play an essential role in controlling hair growth and in conditions such as androgenic alopecia. We examined the effect of Bacillus/Trapa japonica fruit ferment filtrate extracts (TJFs) on HDP cells to determine whether activation of the Akt/ERK/GSK-3β signaling pathway improved HDP cell proliferation. METHODS We prepared TJFs using various methods. The extract properties were analyzed using WST-1, Lowry, and cell migration assays as well as immunofluorescence staining. We also determined the cell cycle stage and performed western blotting and an in ovo chick chorioallantoic membrane assay. Last, we constructed an organotypic three-dimensional cell culture model for immunohistochemical use. RESULTS Our study confirmed that the TJFs contained numerous peptides and five unknown fractions. The TJFs stimulated HDP cell proliferation and migration via the Akt/ERK/GSK-3β signaling pathway. To verify that the Akt/ERK/GSK-3β pathway affected HDP cell proliferation, we treated HDP cells with LY294002 (an Akt inhibitor), BIO (a GSK-3β inhibitor), and PD98059 (an ERK inhibitor). The TJFs also induced cell cycle progression, inhibited type І 5α-reductase, decreased apoptosis, and enhanced angiogenesis (vascular expansion). In addition to these signaling pathways, proteins including insulin-like growth factor-1 and keratinocyte growth factor, stimulating hair growth, were detected in the three-dimensional cell culture model. CONCLUSIONS Our results confirmed that TJFs enhance HDP cell proliferation via the Akt/ERK/GSK-3β signaling pathway, suggesting a potential treatment for alopecia.
Collapse
Affiliation(s)
- Gun-He Nam
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| | - Kyung-Jo Jo
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| | - Ye-Seul Park
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| | - Hye Won Kawk
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| | - Je-Geun Yoo
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| | - Jin Dong Jang
- Doori Cosmetics Co.,Ltd., 11F Galaxy Tower, 175, Saimdang-ro, Seocho-gu, Seoul, South Korea
| | - Sang Moon Kang
- ANPEP INC., 13, Oksansandan 1-ro, Oksan-myeon, Heungdeok-gu, Cheongju-si, Chungcheongbuk-do Republic of Korea
| | - Sang-Yong Kim
- Department of Food Science & Bio Technology, Shinansan University, Daehakro Danwon-gu, Ansan City, Gyenggi-do South Korea
| | - Young-Min Kim
- Department of Biological science and Biotechnology, College of Life science and Nano technology, Hannam University, 1646 Yuseong-daero, Yuseong-gu, Daejeon, 34054 South Korea
| |
Collapse
|
204
|
Wang Q, Qu J, Li Y, Ji D, Zhang H, Yin X, Wang J, Niu H. Hair follicle stem cells isolated from newborn Yangtze River Delta White Goats. Gene 2019; 698:19-26. [DOI: 10.1016/j.gene.2019.02.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/12/2019] [Accepted: 02/12/2019] [Indexed: 12/17/2022]
|
205
|
Dental derived stem cell conditioned media for hair growth stimulation. PLoS One 2019; 14:e0216003. [PMID: 31042749 PMCID: PMC6493760 DOI: 10.1371/journal.pone.0216003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 04/11/2019] [Indexed: 12/20/2022] Open
Abstract
Alopecia is a clinical condition caused by excessive hair loss which may result in baldness, the causes of which still remain elusive. Conditioned media (CM) from stem cells shows promise in regenerative medicine. Our aim was to evaluate the potential CM of dental pulp stem cells obtained from human deciduous teeth (SHED-CM) to stimulate hair growth under in vitro and in vivo conditions. SHED and hair follicle stem cells (HFSCs) (n = 3) were cultured in media combinations; i) STK2, ii) DMEM-KO+10% FBS, iii) STK2+2% FBS and profiled for the presence of positive hair growth-regulatory paracrine factors; SDF-1, HGF, VEGF-A, PDGF-BB and negative hair growth-regulatory paracrine factors; IL-1α, IL-1β, TGF-β, bFGF, TNF-α, and BDNF. The potential of CM from both cell sources to stimulate hair growth was evaluated based on the paracrine profile and measured dynamics of hair growth under in vitro conditions. The administration of CM media to telogen-staged synchronized 7-week old C3H/HeN female mice was carried out to study the potential of the CM to stimulate hair growth in vivo. SHED and HFSCs cultured in STK2 based media showed a shorter population doubling time, higher viability and better maintenance of MSC characteristics in comparison to cells cultured in DMEM-KO media. STK2 based CM contained only two negative hair growth-regulatory factors; TNF-α, IL-1 while DMEM-KO CM contained all negative hair growth-regulatory factors. The in vitro study confirmed that treatment with STK2 based media CM from passage 3 SHED and HFSCs resulted in a significantly higher number of anagen-staged hair follicles (p<0.05) and a significantly lower number of telogen-staged hair follicles (p<0.05). Administration of SHED-CM to C3H/HeN mice resulted in a significantly faster stimulation of hair growth in comparison to HFSC-CM (p<0.05), while the duration taken for complete hair coverage was similar for both CM sources. Thus, SHED-CM carries the potential to stimulate hair growth which can be used as a treatment tool for alopecia.
Collapse
|
206
|
Zheng M, Jang Y, Choi N, Kim DY, Han TW, Yeo JH, Lee J, Sung JH. Hypoxia improves hair inductivity of dermal papilla cells via nuclear NADPH oxidase 4-mediated reactive oxygen species generation'. Br J Dermatol 2019; 181:523-534. [PMID: 30703252 DOI: 10.1111/bjd.17706] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dermal papilla cells (DPCs) play a key role in hair regeneration and morphogenesis. Therefore, tremendous efforts have been made to promote DPC hair inductivity. OBJECTIVES The aim of this study was to investigate the mitogenic and hair inductive effects of hypoxia on DPCs and examine the underlying mechanism of hypoxia-induced stimulation of DPCs. METHODS DPCs' hair inductivity was examined under normoxia (20% O2 ) and hypoxia (2% O2 ). RESULTS Hypoxia significantly increased the proliferation and delayed senescence of DPCs via Akt phosphorylation and downstream pathways. Hypoxia upregulated growth factor secretion of DPCs through the mitogen-activated protein kinase pathway. Hypoxia-preconditioned DPCs induced the telogen-to-anagen transition in C3 H mice, and also enhanced hair neogenesis in a hair reconstitution assay. Injected green fluorescent protein-labelled DPCs migrated to the outer root sheath of the hair follicle, and hypoxia-preconditioning increased survival and migration of DPCs in vivo. Conditioned medium obtained from hypoxia increased the hair length of mouse vibrissa follicles via upregulation of alkaline phosphatase, vascular endothelial growth factor, and glial cell line-derived neurotrophic factor. We examined the mechanism of this hypoxia-induced stimulation, and found that reactive oxygen species (ROS) play a key role. For example, inhibition of ROS generation by N-acetylcysteine or diphenyleneiodonium treatment attenuated DPCs' hypoxia-induced stimulation, but treatment with ROS donors induced mitogenic effects and anagen transition. NADPH oxidase 4 is highly expressed in the DPC nuclear region, and NOX4 knockout by CRISPR-Cas9 attenuated the hypoxia-induced stimulation of DPCs. CONCLUSIONS Our results suggest that DPC culture under hypoxia has great advantages over normoxia, and is a novel solution for producing DPCs for cell therapy. What's already known about this topic? Dermal papilla cells (DPCs) play a key role in hair regeneration and morphogenesis, but they are difficult to isolate and expand for use in cell therapy. Tremendous efforts have been made to increase proliferation of DPCs and promote their hair formation ability. What does this study add? Hypoxia (2% O2 ) culture of DPCs increases proliferation, delays senescence and enhances hair inductivity of DPCs. Reactive oxygen species play a key role in hypoxia-induced stimulation of DPC. What is the translational message? Preconditioning DPCs under hypoxia improves their hair regenerative potential, and is a novel solution for producing DPCs for cell therapy to treat hair loss.
Collapse
Affiliation(s)
- M Zheng
- STEMORE Co. Ltd, Incheon, South Korea
| | - Y Jang
- STEMORE Co. Ltd, Incheon, South Korea
| | - N Choi
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - D Y Kim
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - T W Han
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - J H Yeo
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - J Lee
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| | - J-H Sung
- STEMORE Co. Ltd, Incheon, South Korea.,College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, South Korea
| |
Collapse
|
207
|
Kim YH, Kim BJ, Kim SM, Kim SU, Ryu BY. Induction of cardiomyocyte‑like cells from hair follicle cells in mice. Int J Mol Med 2019; 43:2230-2240. [PMID: 30864673 DOI: 10.3892/ijmm.2019.4133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 03/08/2019] [Indexed: 11/05/2022] Open
Abstract
Hair follicles (HFs) are a well‑characterized niche for adult stem cells (SCs), and include epithelial and melanocytic SCs. HF cells are an accessible source of multipotent adult SCs for the generation of the interfollicular epidermis, HF structures and sebaceous glands in addition to the reconstitution of novel HFs in vivo. In the present study, it was demonstrated that HF cells are able to be induced to differentiate into cardiomyocyte‑like cells in vitro under specific conditions. It was determined that HF cells cultured on OP9 feeder cells in KnockOut‑Dulbecco's modified Eagle's medium/B27 in the presence of vascular endothelial growth factors differentiated into cardiomyocyte‑like cells that express markers specific to cardiac lineage, but do not express non‑cardiac lineage markers including neural stem/progenitor cell, HF bulge cells or undifferentiated spermatogonia markers. These cardiomyocyte‑like cells exhibited a spindle‑ and filament‑shaped morphology similar to that presented by cardiac muscles and exhibited spontaneous beating that persisted for over 3 months. These results demonstrate that SC reprogramming and differentiation may be induced without resulting in any genetic modification, which is important for the clinical applications of SCs including tissue and organ regeneration.
Collapse
Affiliation(s)
- Yong-Hee Kim
- Department of Animal Science and Technology, College of Biotechnology and Natural Resources, Chung‑Ang University, Anseong, Gyeonggi‑do 17546, Republic of Korea
| | - Bang-Jin Kim
- Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Seok-Man Kim
- Department of Animal Science and Technology, College of Biotechnology and Natural Resources, Chung‑Ang University, Anseong, Gyeonggi‑do 17546, Republic of Korea
| | - Sun-Uk Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Chungcheongbuk‑do 28116, Republic of Korea
| | - Buom-Yong Ryu
- Department of Animal Science and Technology, College of Biotechnology and Natural Resources, Chung‑Ang University, Anseong, Gyeonggi‑do 17546, Republic of Korea
| |
Collapse
|
208
|
Intrinsic activation of cell growth and differentiation in ex vivo cultured human hair follicles by a transient endogenous production of ROS. Sci Rep 2019; 9:4509. [PMID: 30872609 PMCID: PMC6418192 DOI: 10.1038/s41598-019-39992-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 02/07/2019] [Indexed: 02/06/2023] Open
Abstract
The emerging variety of signalling roles for ROS in eukaryotic cells and tissues is currently a matter of intense research. Here we make use of ex vivo cultured single human hair follicles as an experimental model to demonstrate that a transient production of non-lethal endogenous ROS levels in these mini-organs promotes efficiently the entry into the growth phase (anagen). The stimulatory process implicates the specific activation of the hair follicle stem cell niche, encompassing the induction of stem cell differentiation markers (Ck15), overall cell proliferation and sustained growth of the tissue associated with expression of gen targets (Ccnd1) concomitant with the inhibition of Wnt signaling antagonists and repressors (Dkk1, Gsk3β) of Wnt signaling. As a whole, this observation indicates that, once activated, ROS signalling is an intrinsic mechanism regulating the hair follicle stem cell niche independently of any external signal.
Collapse
|
209
|
Wen TC, Li YS, Rajamani K, Harn HJ, Lin SZ, Chiou TW. Effect of Cinnamomum osmophloeum Kanehira Leaf Aqueous Extract on Dermal Papilla Cell Proliferation and Hair Growth. Cell Transplant 2019; 27:256-263. [PMID: 29637818 PMCID: PMC5898689 DOI: 10.1177/0963689717741139] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, we explored the effect of the water extract of Cinnamomum osmophloeum Kanehira (COK) leaves on hair growth by in vitro and in vivo assays. Using an in vitro 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, it was found that the proliferation of rat vibrissae and human hair dermal papilla cells (hDPCs) was significantly enhanced by the COK leaf extract treatment. As determined by quantitative real-time polymerase chain reaction (RT-PCR), the messenger RNA (mRNA) levels of some hair growth–related factors including vascular endothelial growth factor, keratinocyte growth factor (KGF), and transforming growth factor-β2 were found to be higher in the cultured hDPCs exposed to COK leaf extract than those in the untreated control group. In the hair-depilated C57BL/6 mouse model, the stimulation of hair growth was demonstrated in the group of COK leaf extract treatment. Both photographical and histological observations revealed the promotion of the anagen phase in the hair growth cycle by the COK leaf extract in the C57BL/6 mice. Finally, the ultra performance liquid chromatography (UPLC) showed that the COK extract contained mostly cinnamic aldehyde and a small amount of cinnamic acid. The results suggest that the COK leaf extract may find use for the treatment of hair loss.
Collapse
Affiliation(s)
- Tung-Chou Wen
- 1 Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, Republic of China
| | - Yuan-Sheng Li
- 1 Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, Republic of China
| | - Karthyayani Rajamani
- 1 Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, Republic of China
| | - Horng-Jyh Harn
- 2 Department of Pathology, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan, Republic of China.,3 Bioinnovation Center, Tzu Chi Foundation, Hualien, Taiwan, Republic of China
| | - Shinn-Zong Lin
- 3 Bioinnovation Center, Tzu Chi Foundation, Hualien, Taiwan, Republic of China.,4 Department of Neurosurgery, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien, Taiwan, Republic of China
| | - Tzyy-Wen Chiou
- 1 Department of Life Science and Graduate Institute of Biotechnology, National Dong Hwa University, Hualien, Taiwan, Republic of China
| |
Collapse
|
210
|
Zhao N, Coyne J, Xu M, Zhang X, Suzuki A, Shi P, Lai J, Fong GH, Xiong N, Wang Y. Assembly of Bifunctional Aptamer-Fibrinogen Macromer for VEGF Delivery and Skin Wound Healing. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2019; 31:1006-1015. [PMID: 31558852 PMCID: PMC6761992 DOI: 10.1021/acs.chemmater.8b04486] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Macromolecular assembly has been studied for various applications. However, while macromolecules can recognize one another for assembly, their assembled structures usually lack the function of specific molecular recognition. We hypothesized that bifunctional aptamer-protein macromers would possess dual functions of molecular assembly and recognition. The data show that hybrid aptamer-fibrinogen macromers can assemble to form hydrogels. Moreover, the assembled hydrogels can recognize vascular endothelial growth factor (VEGF) for sustained release. When the VEGF-loaded hydrogels are implanted in vivo, they can promote angiogenesis and skin wound healing. Thus, this work has successfully demonstrated a promising macromolecular system for broad applications such as drug delivery and regenerative medicine.
Collapse
Affiliation(s)
- Nan Zhao
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - James Coyne
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ming Xu
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Xiaolong Zhang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Akiho Suzuki
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Peng Shi
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jinping Lai
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Guo-Hua Fong
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
| | - Na Xiong
- Department of Veterinary and Biomedical Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Yong Wang
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Correspondence can be addressed to Dr. Yong Wang (; Phone: 814-865-6867)
| |
Collapse
|
211
|
Tan SW, Li PZ, Li H, Yu H, Zhang ZF, Zeng Z, Huang DC. Genetic effects of vascular endothelial growth factor and its receptor 2 on feather maturity in three chicken breeds. Br Poult Sci 2019; 60:109-114. [PMID: 30602288 DOI: 10.1080/00071668.2018.1564244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
1. The goal of the current study was to evaluate the genetic effects of the vascular endothelial growth factor (VEGF) and its receptor (VEGFR-2) on feather maturity in the Qingyuan partridge chicken, Guangxi sanhuang chicken and Princess chicken. 2. Both SSCP-PCR and qPCR were employed to detect the polymorphism and gene expression of the VEGF and VEGFR-2 genes. 3. Four SNPs were identified in the VEGFR-2 gene. Exon10-A69G was associated with feather maturity (P < 0.01). Princess chickens with the genotype EF had higher feather maturity scores (P < 0.01). Higher expression levels of VEGF and VEGFR-2 were detected in the immature feather group of Qingyuan partridge chickens, especially in the skin. 4. The VEGF and VEGFR-2 genes play critical roles in feather maturity. In addition, exon10-A69G and genotype EF in the Princess chicken could potentially be utilised as genetic markers to improve efficiency in breeding.
Collapse
Affiliation(s)
- S-W Tan
- a School of Life Science and Engineering , Foshan University , Guangdong , China.,b College of Life Science , Wuhan University , Hubei , China
| | - P-Z Li
- a School of Life Science and Engineering , Foshan University , Guangdong , China
| | - H Li
- a School of Life Science and Engineering , Foshan University , Guangdong , China
| | - H Yu
- a School of Life Science and Engineering , Foshan University , Guangdong , China.,c Breeding Center , Guangodong Tinoo's Food Co., LTD , Guangdong , China
| | - Z-F Zhang
- c Breeding Center , Guangodong Tinoo's Food Co., LTD , Guangdong , China
| | - Z Zeng
- a School of Life Science and Engineering , Foshan University , Guangdong , China
| | - D-C Huang
- a School of Life Science and Engineering , Foshan University , Guangdong , China
| |
Collapse
|
212
|
Azuma K, Koizumi R, Izawa H, Morimoto M, Saimoto H, Osaki T, Ito N, Yamashita M, Tsuka T, Imagawa T, Okamoto Y, Inoue T, Ifuku S. Hair growth-promoting activities of chitosan and surface-deacetylated chitin nanofibers. Int J Biol Macromol 2018; 126:11-17. [PMID: 30576733 DOI: 10.1016/j.ijbiomac.2018.12.135] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/30/2018] [Accepted: 12/16/2018] [Indexed: 12/20/2022]
Abstract
In this study, the effects of chitosan and surface-deacetylated chitin nanofibrils (SDACNFs) on hair growth were evaluated. In human follicle dermal papilla cells in vitro, chitosan and SDACNFs were shown to increase cell growth on day 3 after the initiation of treatment, together with an increase in the production of fibroblast growth factor-7 (FGF-7) by these cells on day 3. Furthermore, in an in vivo study in mice, chitosan and SDACNF application promoted hair growth. The number of anagen follicles significantly increased compared with that in the control group, whereas the number of telogen follicles significantly decreased in the chitosan and SDACNF groups. In the chitosan and SDACNFs groups, moreover, the expression levels of FGF-7 and Sonic hedgehog were significantly upregulated in hair follicles. Overall, our results demonstrated that chitosan and SDACNFs promoted hair growth and therefore may have applications as novel therapeutic agents for the treatment of hair loss in patients.
Collapse
Affiliation(s)
- Kazuo Azuma
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Ryo Koizumi
- Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Hironori Izawa
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Minoru Morimoto
- Division of Instrumental Analysis, Research Center for Bioscience and Technology, Tottori University, 4-101 Koyama-minami, Tottori 680-8550, Japan.
| | - Hiroyuki Saimoto
- Graduate School of Engineering, Tottori University, 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Tomohiro Osaki
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Norihiko Ito
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Masamichi Yamashita
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Takeshi Tsuka
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Tomohiro Imagawa
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Yoshiharu Okamoto
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan.
| | - Tadashi Inoue
- Marine Nano-fiber Co., Ltd., 4-101 Koyama-minami, Tottori 680-8552, Japan.
| | - Shinsuke Ifuku
- Department of Veterinary Clinical Medicine, Tottori University, 4-101 Koyama-minami, Tottori 680-8553, Japan; Marine Nano-fiber Co., Ltd., 4-101 Koyama-minami, Tottori 680-8552, Japan.
| |
Collapse
|
213
|
Sadgrove NJ. The new paradigm for androgenetic alopecia and plant-based folk remedies: 5α-reductase inhibition, reversal of secondary microinflammation and improving insulin resistance. JOURNAL OF ETHNOPHARMACOLOGY 2018; 227:206-236. [PMID: 30195058 DOI: 10.1016/j.jep.2018.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 08/05/2018] [Accepted: 09/04/2018] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Research in the past half a century has gradually sketched the biological mechanism leading to androgenetic alopecia (AGA). Until recently the aetiological paradigm has been too limited to enable intelligent commentary on the use of folk remedies to treat or reduce the expression of this condition. However, our understanding is now at a point where we can describe how some folk remedies work, predict how effective they will be or why they fail. RESULTS The new paradigm of AGA is that inheritance and androgens (dihydrotestosterone) are the primary contributors and a secondary pathology, microinflammation, reinforces the process at more advanced stages of follicular miniaturisation. The main protagonist to microinflammation is believed to be microbial or Demodex over-colonisation of the infundibulum of the pilosebaceous unit, which can be ameliorated by antimicrobial/acaricidal or anti-inflammatory therapies that are used as adjuvants to androgen dependent treatments (either synthetic or natural). Furthermore, studies reveal that suboptimal androgen metabolism occurs in both AGA and insulin resistance (low SHBG or high DHT), suggesting comorbidity. Both can be ameliorated by dietary phytochemicals, such as specific classes of phenols (isoflavones, phenolic methoxy abietanes, hydroxylated anthraquinones) or polycyclic triterpenes (sterols, lupanes), by dual inhibition of key enzymes in AGA (5α-reductase) and insulin resistance (ie., DPP-4 or PTP1B) or agonism of nuclear receptors (PPARγ). Evidence strongly indicates that some plant-based folk remedies can ameliorate both primary and secondary aetiological factors in AGA and improve insulin resistance, or act merely as successful adjuvants to mainstream androgen dependent therapies. CONCLUSION Thus, if AGA is viewed as an outcome of primary and secondary factors, then it is better that a 'multimodal' or 'umbrella' approach, to achieve cessation and/or reversal, is put into practice, using complementation of chemical species (isoflavones, anthraquinones, procyanidins, triterpenes, saponins and hydrogen sulphide prodrugs), thereby targeting multiple 'factors'.
Collapse
|
214
|
Rinaldi F, Marzani B, Pinto D, Sorbellini E. Randomized controlled trial on a PRP-like cosmetic, biomimetic peptides based, for the treatment of alopecia areata. J DERMATOL TREAT 2018; 30:588-593. [PMID: 30513014 DOI: 10.1080/09546634.2018.1544405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Background: Alopecia areata (AA) is a non-scarring auto-immune hair disorder. Recent researches explained the role of growth factors (GFs) in hair follicle cycling. The main reservoir of GFs are alpha-granules of platelets and novel procedures have been implemented aimed at collecting platelet-rich plasma (PRP). PRP has been safely implemented in many medical applications and has also been successfully used as alternative cell-based therapy for the treatment of hair growth disorders, among which also AA. Objectives: By means of a randomized double-blinded, placebo and active-controlled, parallel group study we have studied the efficacy of a cosmetic product (named TR-M-PRP plus) comprising biomimetic peptides specific for hair growth, mimicking PRP composition for the treatment of AA. Subjects were treated for three months and evaluated, at the end of the study and after one month of follow-up, as regards hair growth using SALT score. Results: TR-M-PRP plus-like topic produced a statistically significant (p < .001) clinical improvement in SALT score after 3 months of therapy, compared to baseline. Hair growth results further improved after 1 month of follow-up. Conclusions: This clinical investigation suggests that the biotechnological designed PRP-like cosmetic could represent a valid and safer alternative to autologous PRP for the treatment of AA.
Collapse
Affiliation(s)
- Fabio Rinaldi
- a International Hair Research Foundation , Milan , Italy
| | | | - Daniela Pinto
- a International Hair Research Foundation , Milan , Italy
| | | |
Collapse
|
215
|
Novel non-angiogenic role for mesenchymal stem cell-derived vascular endothelial growth factor on keratinocytes during wound healing. Cytokine Growth Factor Rev 2018; 44:69-79. [PMID: 30470511 DOI: 10.1016/j.cytogfr.2018.11.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 11/12/2018] [Indexed: 12/21/2022]
Abstract
With chronic wounds remaining a substantial healthcare issue, new therapies are sought to improve patient outcomes. Various studies have explored the benefits of promoting angiogenesis in wounds by targeting proangiogenic factors such as Vascular Endothelial Growth Factor (VEGF) family members to improve wound healing. Along similar lines, Mesenchymal Stem Cell (MSC) secretions, usually containing VEGF, have been used to improve angiogenesis in wound healing via a paracrine mechanism. Recent evidence for keratinocyte VEGF receptor expression, as well as proliferative and chemotactic responses by keratinocytes to exogenous VEGFA in vitro implies distinct non-angiogenic actions for VEGF during wound healing. In this review, we discuss the expression of VEGF family members and their receptors in keratinocytes in relation to the potential for wound healing treatments. We also explore recent findings of MSC secreted paracrine wound healing activity on keratinocytes. We report here the concept of keratinocyte wound healing responses driven by MSC-derived VEGF that is supported in the literature, providing a new mechanism for cell-free therapy of chronic wounds.
Collapse
|
216
|
Bassino E, Gasparri F, Munaron L. Serenoa repens and N-acetyl glucosamine/milk proteins complex differentially affect the paracrine communication between endothelial and follicle dermal papilla cells. J Cell Physiol 2018; 234:7320-7329. [PMID: 30417926 DOI: 10.1002/jcp.27491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 09/06/2018] [Indexed: 12/12/2022]
Abstract
Current treatments for hair follicle (HF) disruption are based on 5-α reductase inhibitors and prostaglandin modulators. Botanicals and nutraceutical compounds interfere with hair loss or stimulate its partial regrowth. Here, we used in vitro cocultures to investigate the activity of Serenoa repens ( SR) and N-acetyl glucosamine + milk proteins (NAG/Lac) on the paracrine interactions between human microvascular endothelial cells (HMVEC) and HF dermal papilla cells (FDPC). Both SR and NAG/Lac-induced endothelial tubulogenesis were enhanced by FDPC. SR promoted proliferation of both the cell types, while NAG/Lac was effective on endothelium. Vascular endothelial growth factor production, enhanced by SR, was further augmented by FDPC. In FDPC 5-α reductase-II and β-catenin expressions were modified by SR and less by NAG/Lac, with no additional effect by HMVEC. SR and NAG/Lac prevented lipid peroxidation, whereas NAG/Lac was effective on interleukin 1β production. Finally, SR and NAG/Lac differentially affected HMVEC permeability and tight junction proteins content. These data provide a mechanistic background for the potential use of these compounds as promoters of HF vascularization.
Collapse
Affiliation(s)
- Eleonora Bassino
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | - Franco Gasparri
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | - Luca Munaron
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| |
Collapse
|
217
|
|
218
|
Owczarczyk-Saczonek A, Krajewska-Włodarczyk M, Kruszewska A, Banasiak Ł, Placek W, Maksymowicz W, Wojtkiewicz J. Therapeutic Potential of Stem Cells in Follicle Regeneration. Stem Cells Int 2018; 2018:1049641. [PMID: 30154860 PMCID: PMC6098866 DOI: 10.1155/2018/1049641] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 06/24/2018] [Accepted: 07/22/2018] [Indexed: 02/08/2023] Open
Abstract
Alopecia is caused by a variety of factors which affect the hair cycle and decrease stem cell activity and hair follicle regeneration capability. This process causes lower self-acceptance, which may result in depression and anxiety. However, an early onset of androgenic alopecia is associated with an increased incidence of the metabolic syndrome and an increased risk of the cardiac ischaemic disease. The ubiquity of alopecia provides an encouragement to seek new, more effective therapies aimed at hair follicle regeneration and neoregeneration. We know that stem cells can be used to regenerate hair in several therapeutic strategies: reversing the pathological mechanisms which contribute to hair loss, regeneration of complete hair follicles from their parts, and neogenesis of hair follicles from a stem cell culture with isolated cells or tissue engineering. Hair transplant has become a conventional treatment technique in androgenic alopecia (micrografts). Although an autologous transplant is regarded as the gold standard, its usability is limited, because of both a limited amount of material and a reduced viability of cells obtained in this way. The new therapeutic options are adipose-derived stem cells and stem cells from Wharton's jelly. They seem an ideal cell population for use in regenerative medicine because of the absence of immunogenic properties and their ease of obtainment, multipotential character, ease of differentiating into various cell lines, and considerable potential for angiogenesis. In this article, we presented advantages and limitations of using these types of cells in alopecia treatment.
Collapse
Affiliation(s)
- Agnieszka Owczarczyk-Saczonek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | | | - Anna Kruszewska
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Łukasz Banasiak
- Department of Plastic, Reconstructive and Aesthetic Surgery, L. Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Toruń, Poland
| | - Waldemar Placek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Wojciech Maksymowicz
- Department of Neurology and Neurosurgery, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
| | - Joanna Wojtkiewicz
- Foundation for Nerve Cell Regeneration, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
- Department of Pathophysiology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland
- Laboratory for Regenerative Medicine, Faculty of Medical Sciences, University of Warmia and Mazury, Olsztyn, Poland
| |
Collapse
|
219
|
Ge W, Wang SH, Sun B, Zhang YL, Shen W, Khatib H, Wang X. Melatonin promotes Cashmere goat (Capra hircus) secondary hair follicle growth: a view from integrated analysis of long non-coding and coding RNAs. Cell Cycle 2018; 17:1255-1267. [PMID: 29895193 DOI: 10.1080/15384101.2018.1471318] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The role of melatonin in promoting the yield of Cashmere goat wool has been demonstrated for decades though there remains a lack of knowledge regarding melatonin mediated hair follicle growth. Recent studies have demonstrated that long non-coding RNAs (lncRNAs) are widely transcribed in the genome and play ubiquitous roles in regulating biological processes. However, the role of lncRNAs in regulating melatonin mediated hair follicle growth remains unclear. In this study, we established an in vitro Cashmere goat secondary hair follicle culture system, and demonstrated that 500 ng/L melatonin exposure promoted hair follicle fiber growth. Based on long intergenic RNA sequencing, we demonstrated that melatonin promoted hair follicle elongation via regulating genes involved in focal adhesion and extracellular matrix receptor pathways and further cis predicting of lncRNAs targeted genes indicated that melatonin mediated lncRNAs mainly targeted vascular smooth muscle contraction and signaling pathways regulating the pluripotency of stem cells. We proposed that melatonin exposure not only perturbed key signals secreted from hair follicle stem cells to regulate hair follicle development, but also mediated lncRNAs mainly targeted to pathways involved in the microvascular system and extracellular matrix, which constitute the highly orchestrated microenvironment for hair follicle stem cell. Taken together, our findings here provide a profound view of lncRNAs in regulating Cashmere goat hair follicle circadian rhythms and broaden our knowledge on melatonin mediated hair follicle morphological changes.
Collapse
Affiliation(s)
- Wei Ge
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Shan-He Wang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Bing Sun
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Yue-Lang Zhang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| | - Wei Shen
- b College of Life Sciences, Institute of Reproductive Sciences , Qingdao Agricultural University , Qingdao , China
| | - Hasan Khatib
- c Department of Animal Sciences , University of Wisconsin-Madison , Madison , WI , USA
| | - Xin Wang
- a College of Animal Science & Technology , Northwest A&F University , Yangling , China
| |
Collapse
|
220
|
Gupta AK, Mays RR, Dotzert MS, Versteeg SG, Shear NH, Piguet V. Efficacy of non-surgical treatments for androgenetic alopecia: a systematic review and network meta-analysis. J Eur Acad Dermatol Venereol 2018; 32:2112-2125. [PMID: 29797431 DOI: 10.1111/jdv.15081] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 04/13/2018] [Indexed: 01/03/2023]
Abstract
Androgenetic alopecia, or male/female pattern baldness, is the most common type of progressive hair loss disorder. The aim of this study was to review recent advances in non-surgical treatments for androgenetic alopecia and identify the most effective treatments. A network meta-analysis (NMA) was conducted of the available literature of the six most common non-surgical treatment options for treating androgenetic alopecia in both men and women; dutasteride 0.5 mg, finasteride 1 mg, low-level laser therapy (LLLT), minoxidil 2%, minoxidil 5% and platelet-rich plasma (PRP). Seventy-eight studies met the inclusion criteria, and 22 studies had the data necessary for a network meta-analysis. Relative effects show LLLT as the superior treatment. Relative effects show PRP, finasteride 1 mg (male), finasteride 1 mg (female), minoxidil 5%, minoxidil 2% and dutasteride (male) are approximately equivalent in mean change hair count following treatment. Minoxidil 5% and minoxidil 2% reported the most drug-related adverse events (n = 45 and n = 23, respectively). The quality of evidence of minoxidil 2% vs. minoxidil 5% was high; minoxidil 5% vs. placebo was moderate; dutasteride (male) vs. placebo, finasteride (female) vs. placebo, minoxidil 2% vs. placebo and minoxidil 5% vs. LLLT was low; and finasteride (male) vs. placebo, LLLT vs. sham, PRP vs. placebo and finasteride vs. minoxidil 2% was very low. Results of this NMA indicate the emergence of novel, non-hormonal therapies as effective treatments for hair loss; however, the quality of evidence is generally low. High-quality randomized controlled trials and head-to-head trials are required to support these findings and aid in the development of more standardized protocols, particularly for PRP. Regardless, this analysis may aid physicians in clinical decision-making and highlight the variety of non-surgical hair restoration options for patients.
Collapse
Affiliation(s)
- A K Gupta
- Mediprobe Research Inc., London, Canada.,Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Canada
| | - R R Mays
- Mediprobe Research Inc., London, Canada
| | | | | | - N H Shear
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Canada.,Division of Dermatology, Sunnybrook Health Sciences Centre, Toronto, Canada
| | - V Piguet
- Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Canada.,Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, United Kingdom.,Division of Dermatology, Women's College Hospital, Toronto, Canada
| |
Collapse
|
221
|
Wu XJ, Jing J, Lu ZF, Zheng M. Expression and localization of VEGFR-2 in hair follicles during induced hair growth in mice. Arch Dermatol Res 2018; 310:591-598. [PMID: 29909529 DOI: 10.1007/s00403-018-1843-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 05/13/2018] [Accepted: 06/07/2018] [Indexed: 12/21/2022]
Abstract
Recently, VEGFR-2 has been detected not only in vascular and lymphatic endothelial cells but also in some non-vascular endothelial cells, particularly human hair follicles, sebaceous glands, and sweat glands. In addition, VEGFR-2 has been confirmed to play direct roles in hair follicle keratinocyte regulation beyond simply angiogenesis. To elucidate whether VEGFR-2 activation plays a role in hair follicle cycling regulation, immunofluorescence of VEGFR-2 expression was performed during hair cycling of the dorsum of the mouse induced by hair plucking. We observed that staining for VEGFR-2 in hair follicles during anagen II and IV was much stronger than during anagen VI, catagen and telogen. During anagen II, intense staining for VEGFR-2 was observed on the keratinocyte strands of the hair follicle. Subsequently, we detected intense staining for VEGFR-2 in the ORS, IRS and hair bulb during anagen IV. Moderate staining for VEGFR-2 was detected in the ORS and hair bulb, but staining was most intense in IRS during anagen VI. During catagen, staining for VEGFR-2 in the IRS remained intense, while staining in the ORS and hair bulb was significantly weakened and was negative in the dermal papilla. During telogen, we detected VEGFR-2 in germ cells, cap, and club hair adjoining the epidermis. In conclusion, VEGFR-2 was expressed on the hair follicles of the dorsum of the mouse and varied in expression on the mouse hair follicles during hair cycling, suggesting that VEGFR-2 may exert roles in hair cycle regulation in hair follicles on the dorsum of mice.
Collapse
Affiliation(s)
- Xian-Jie Wu
- Department of Dermatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, China
| | - Jing Jing
- Department of Dermatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, China
| | - Zhong-Fa Lu
- Department of Dermatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, China.
| | - Min Zheng
- Department of Dermatology, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88, Jiefang Road, Hangzhou, 310009, China.
| |
Collapse
|
222
|
Nakamura T, Yamamura H, Park K, Pereira C, Uchida Y, Horie N, Kim M, Itami S. Naturally Occurring Hair Growth Peptide: Water-Soluble Chicken Egg Yolk Peptides Stimulate Hair Growth Through Induction of Vascular Endothelial Growth Factor Production. J Med Food 2018; 21:701-708. [PMID: 29583066 DOI: 10.1089/jmf.2017.4101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Alopecia is divided into two categories: androgenic alopecia and nonandrogenic alopecia. An androgen-dependent abnormality of biological functions causes alopecia in males, but the role of androgens is not yet elucidated in female pattern hair loss (FPHL). Modulation of androgenic activity is not effective in certain kinds of androgenic alopecia in females, as well as in cases of nonandrogenic alopecia in males and females. The hair growth drug, minoxidil, stimulates vascular endothelial growth factor (VEGF) production as well as vascularization and hair growth in females. Yet, because minoxidil has side effects with long-term use, a safe alternative hair growth agent is needed. Whereas hair develops after birth in mammalian species, hair mostly grows in a precocial bird, in the chicken, between hatching days 14 and 15. Therefore, we hypothesized that the chicken egg contains a key hair growth factor. In this study, we demonstrated that water-soluble peptides derived from the egg yolk stimulate VEGF production and human hair follicle dermal papilla cell growth. We also found that these peptides enhance murine hair growth and improve hair growth in FPHL. Finally, we characterized that water-soluble egg yolk peptides induce VEGF expression through insulin growth factor-1 receptor activation-induced hypoxia-inducible factor-1α transcription pathway. We have given the name "hair growth peptide (HGP)" to this water-soluble egg yolk peptide.
Collapse
Affiliation(s)
| | | | - Kyungho Park
- 3 Department of Food Science and Nutrition, Hallym University , Gangwon-do, Republic of Korea
| | | | | | - Noriko Horie
- 1 Pharma Foods International Co. Ltd. , Kyoto, Japan
| | - Mujo Kim
- 1 Pharma Foods International Co. Ltd. , Kyoto, Japan
| | - Satoshi Itami
- 4 Department of Regenerative Dermatology, Osaka University Graduate School of Medicine , Osaka, Japan
| |
Collapse
|
223
|
Zhou G, Kang D, Ma S, Wang X, Gao Y, Yang Y, Wang X, Chen Y. Integrative analysis reveals ncRNA-mediated molecular regulatory network driving secondary hair follicle regression in cashmere goats. BMC Genomics 2018; 19:222. [PMID: 29587631 PMCID: PMC5870523 DOI: 10.1186/s12864-018-4603-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/13/2018] [Indexed: 02/06/2023] Open
Abstract
Background Cashmere is a keratinized product derived from the secondary hair follicles (SHFs) of cashmere goat skins. The cashmere fiber stops growing following the transition from the actively proliferating anagen stage to the apoptosis-driven catagen stage. However, little is known regarding the molecular mechanisms responsible for the occurrence of apoptosis in SHFs, especially as pertains to the role of non-coding RNAs (ncRNAs) and their interactions with other molecules. Hair follicle (HF) degeneration is caused by localized apoptosis in the skin, while anti-apoptosis pathways may coexist in adjacent HFs. Thus, elucidating the molecular interactions responsible for apoptosis and anti-apoptosis in the skin will provide insights into HF regression. Results We used multiple-omics approaches to systematically identify long non-coding RNAs (lncRNAs), microRNAs (miRNAs) and mRNAs expressed in cashmere goat skins in two crucial phases (catagen vs. anagen) of HF growth. Skin samples were collected from three cashmere goats at the anagen (September) and catagen (February) stages, and six lncRNA libraries and six miRNA libraries were constructed for further analysis. We identified 1122 known and 403 novel lncRNAs in the goat skins, 173 of which were differentially expressed between the anagen and catagen stages. We further identified 3500 gene-encoding transcripts that were differentially expressed between these two phases. We also identified 411 known miRNAs and 307 novel miRNAs, including 72 differentially expressed miRNAs. We further investigated the target genes of lncRNAs via both cis- and trans-regulation during HF growth. Our data suggest that lncRNAs and miRNAs act synergistically in the HF growth transition, and the catagen inducer factors (TGFβ1 and BDNF) were regulated by miR-873 and lnc108635596 in the lncRNA-miRNA-mRNA networks. Conclusion This study enriches the repertoire of ncRNAs in goats and other mammals, and contributes to a better understanding of the molecular mechanisms of ncRNAs involved in the regulation of HF growth and regression in goats and other hair-producing species. Electronic supplementary material The online version of this article (10.1186/s12864-018-4603-3) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Guangxian Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Danju Kang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Sen Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xingtao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Ye Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Yuxin Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Xiaolong Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Yulin Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| |
Collapse
|
224
|
Abstract
Aging results in both anatomic and physiologic changes in the skin's structure and vascular system. These vascular changes result in a wide array of dermatologic findings, ranging from the benign to the highly morbid. Herein, we review the impact of both intrinsic and common extrinsic factors of aging on cutaneous vasculature and highlight the manifestations of microvascular, venous, arterial, lymphatic, and neuropathic alterations in the geriatric population.
Collapse
Affiliation(s)
- Laura Buford
- Section of Dermatology, The University of Chicago Pritzker School of Medicine, Chicago, Illinois
| | - Rebecca Kaiser
- Section of Dermatology, The University of Chicago Pritzker School of Medicine, Chicago, Illinois
| | - Vesna Petronic-Rosic
- Section of Dermatology, The University of Chicago Pritzker School of Medicine, Chicago, Illinois.
| |
Collapse
|
225
|
Kapoor R, Shome D. Intradermal injections of a hair growth factor formulation for enhancement of human hair regrowth – safety and efficacy evaluation in a first-in-man pilot clinical study. J COSMET LASER THER 2018; 20:369-379. [DOI: 10.1080/14764172.2018.1439965] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Rinky Kapoor
- Department of Cosmetic Dermatology & Facial Plastic Surgery, The Esthetic Clinics, Mumbai, India
| | - Debraj Shome
- Department of Cosmetic Dermatology & Facial Plastic Surgery, The Esthetic Clinics, Mumbai, India
| |
Collapse
|
226
|
Doghaim NN, El‐Tatawy RA, Neinaa YME, Abd El‐samd MM. Study of the efficacy of carboxytherapy in alopecia. J Cosmet Dermatol 2018; 17:1275-1285. [DOI: 10.1111/jocd.12501] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2017] [Indexed: 01/17/2023]
Affiliation(s)
- Noha Nabil Doghaim
- Dermatology and Venereology Faculty of Medicine Tanta University Tanta Egypt
| | | | | | | |
Collapse
|
227
|
Ma J, Ma L, Zhang Z, Li K, Wang Y, Chen X, Zhang H. In vivo evaluation of insect wax for hair growth potential. PLoS One 2018; 13:e0192612. [PMID: 29438422 PMCID: PMC5811011 DOI: 10.1371/journal.pone.0192612] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 01/27/2018] [Indexed: 01/08/2023] Open
Abstract
Insect wax is secreted by Ericerus pela Chavanness. It has been traditionally used to treat hair loss in China, but few reports have been published on the hair growth-promoting effect of insect wax. In this work, we examined the hair growth-promoting effects of insect wax on model animals. Different concentrations of insect wax were topically applied to the denuded backs of mice, and 5% minoxidil was applied topically as a positive control. We found that insect wax significantly promoted hair growth in a dose-dependent manner, 45% and 30% insect wax both induced hair to regrow, while less visible hair growth was observed in blank controls on the 16th day. The experimental areas treated with 45% and 30% insect wax exhibited significant differences in hair scores compared to blank controls, and hair lengths in the 45% and 30% insect wax group was significantly longer than in blank controls on the 16th and 20th days. There were no new hair follicles forming in the treated areas, and the hair follicles were prematurely converted to the anagen phase from the telogen phase in experimental areas treated with 45% and 30% insect wax. Both 45% and 30% insect wax upregulated vascular endothelial growth factor expression. The results indicated that 45% and 30% insect wax showed hair growth-promoting potential approximately as potent as 5% minoxidil by inducing the premature conversion of telogen-to-anagen and by prolonging the mature anagen phase rather than increasing the number of hair follicles, which was likely related to the upregulation of VEGF expression. The dissociative policosanol in insect wax was considered the key ingredient most likely responsible for the hair growth promoting potential.
Collapse
Affiliation(s)
- Jinju Ma
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| | - Liyi Ma
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
- * E-mail:
| | - Zhongquan Zhang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| | - Kai Li
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| | - Youqiong Wang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| | - Xiaoming Chen
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| | - Hong Zhang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming, Yunnan, China
| |
Collapse
|
228
|
|
229
|
Harland DP. Environment of the Anagen Follicle. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1054:97-108. [DOI: 10.1007/978-981-10-8195-8_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|
230
|
Minoxidil Induction of VEGF Is Mediated by Inhibition of HIF-Prolyl Hydroxylase. Int J Mol Sci 2017; 19:ijms19010053. [PMID: 29295567 PMCID: PMC5796003 DOI: 10.3390/ijms19010053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 12/16/2017] [Accepted: 12/20/2017] [Indexed: 12/25/2022] Open
Abstract
The topical application of minoxidil may achieve millimolar concentrations in the skin. We investigated whether millimolar minoxidil could induce vascular endothelial growth factor (VEGF), a possible effector for minoxidil-mediated hair growth, and how it occurred at the molecular level. Cell-based experiments were performed to investigate a molecular mechanism underlying the millimolar minoxidil induction of VEGF. The inhibitory effect of minoxidil on hypoxia-inducible factor (HIF) prolyl hydroxylase-2 (PHD-2) was tested by an in vitro von Hippel–Lindau protein (VHL) binding assay. To examine the angiogenic potential of millimolar minoxidil, a chorioallantoic membrane (CAM) assay was used. In human keratinocytes and dermal papilla cells, millimolar minoxidil increased the secretion of VEGF, which was not attenuated by a specific adenosine receptor antagonist that inhibits the micromolar minoxidil induction of VEGF. Millimolar minoxidil induced hypoxia-inducible factor-1α (HIF-1α), and the induction of VEGF was dependent on HIF-1. Moreover, minoxidil applied to the dorsal area of mice increased HIF-1α and VEGF in the skin. In an in vitro VHL binding assay, minoxidil directly inhibited PHD-2, thus preventing the hydroxylation of cellular HIF-1α and VHL-dependent proteasome degradation and resulting in the stabilization of HIF-1α protein. Minoxidil inhibition of PHD-2 was reversed by ascorbate, a cofactor of PHD-2, and the minoxidil induction of cellular HIF-1α was abrogated by the cofactor. Millimolar minoxidil promoted angiogenesis in the CAM assay, an in vivo angiogenic test, and this was nullified by the specific inhibition of VEGF. Our data demonstrate that PHD may be the molecular target for millimolar minoxidil-mediated VEGF induction via HIF-1.
Collapse
|
231
|
5α-Reductase isozymes and aromatase mRNA levels in plucked hair from young women with female pattern hair loss. Arch Dermatol Res 2017; 310:77-83. [DOI: 10.1007/s00403-017-1798-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 11/20/2017] [Accepted: 11/21/2017] [Indexed: 02/04/2023]
|
232
|
Extracellular vesicles derived from MSCs activates dermal papilla cell in vitro and promotes hair follicle conversion from telogen to anagen in mice. Sci Rep 2017; 7:15560. [PMID: 29138430 PMCID: PMC5686117 DOI: 10.1038/s41598-017-15505-3] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 10/27/2017] [Indexed: 02/06/2023] Open
Abstract
Hair loss is a common medical problem. In this study, we investigated the proliferation, migration, and growth factor expression of human dermal papilla (DP) cells in the presence or absence of treatment with mesenchymal stem cell extracellular vesicles (MSC-EVs). In addition, we tested the efficacy of MSC-EV treatment on hair growth in an animal model. MSC-EV treatment increased DP cell proliferation and migration, and elevated the levels of Bcl-2, phosphorylated Akt and ERK. In addition; DP cells treated with MSC-EVs displayed increased expression and secretion of VEGF and IGF-1. Intradermal injection of MSC-EVs into C57BL/6 mice promoted the conversion from telogen to anagen and increased expression of wnt3a, wnt5a and versican was demonstrated. The first time our results suggest that MSC-EVs have a potential to activate DP cells, prolonged survival, induce growth factor activation in vitro, and promotes hair growth in vivo.
Collapse
|
233
|
Cheng H, Zhang J, Li J, Jia M, Wang Y, Shen H. Platelet-rich plasma stimulates angiogenesis in mice which may promote hair growth. Eur J Med Res 2017; 22:39. [PMID: 29020977 PMCID: PMC5637248 DOI: 10.1186/s40001-017-0278-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 09/19/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Platelet-rich plasma (PRP) is an autologous concentration of human platelets in plasma. In this paper, we aimed to investigate the effect of PRP on hair growth. METHODS Platelet-rich plasma and platelet-poor plasma were prepared by sterile centrifugation and injected into shaved dorsal skin of mice (n = 10). Saline injection was used in the control group. The length of randomly plucked hairs was measured at 8, 13, 18 days after PRP injection. Histological examination was preformed to observe the histologic changes of skins. The immunohistochemistry analysis of CD31 was performed to detect the changes of hair length and formation of new vessels. RESULTS At 13 and 18 days after the last injection, the hair length of mice in PRP group (4.24 ± 0.60 and 8.29 ± 0.48 mm, respectively) was significantly longer compared with the control group (3.70 ± 0.52 and 7.21 ± 0.64 mm, p < 0.05). No significant difference in the hair length was found between the PPP group and the control (p > 0.05). In addition, the number of CD31-positive vessel in the PRP group (9.90 ± 0.60) was more than that in the control group (8.60 ± 2.34, p < 0.05). CONCLUSION Platelet-rich plasma might promote hair length growth and increase the number of hair follicles by inducing angiogenesis.
Collapse
Affiliation(s)
- Hanxiao Cheng
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Jufang Zhang
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China.
| | - Jinsheng Li
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Ming Jia
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Yuyan Wang
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China
| | - Haiyan Shen
- Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University, No. 261 Huansha Road, Hangzhou, 310006, China
| |
Collapse
|
234
|
Kim JE, Woo YJ, Sohn KM, Jeong KH, Kang H. Wnt/β-catenin and ERK pathway activation: A possible mechanism of photobiomodulation therapy with light-emitting diodes that regulate the proliferation of human outer root sheath cells. Lasers Surg Med 2017; 49:940-947. [PMID: 28944964 DOI: 10.1002/lsm.22736] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Outer root sheath cells (ORSCs) play important roles in maintaining hair follicle structure and provide support for the bulge area. The hair growth promoting effects of photobiomodulation therapy (PBMT) have been reported, but the mechanisms for this in human ORCs (hORSCs) have rarely been studied. OBJECTIVE The aim of this study was to investigate the effect of various wavelengths of light-emitting diode (LED) irradiation on human ORSCs (hORSCs). METHODS LED irradiation effects on hORSC proliferation and migration were examined with MTT assay, BrdU incorporation assay and migration assays. hORSCs were irradiated using four LED wavelengths (415, 525, 660, and 830 nm) with different low energy levels. LED irradiation effects on the expression of molecules associated with the Wnt/β-catenin signaling and ERK pathway, hair stem cell markers, and various growth factors and cytokines in hORSCs were examined with real-time PCR and Western blot assay. The effect of the LED-irradiated hORSCs on cell proliferation of human dermal papilla cells (hDPCs) was examined with co-culture and MTT assay. RESULTS PBMT with LED light variably promoted hORSC proliferation and suppressed cell apoptosis depending on energy level. LED irradiation induced Wnt5a, Axin2, and Lef1 mRNA expression and β-catenin protein expression in hORSCs. Phosphorylation of ERK, c-Jun, and p38 in hORSCs was observed after LED light irradiation, and ERK inhibitor treatment before irradiation reduced ERK and c-Jun phosphorylation. Red light-treated hORSCs showed substantial increase in IL-6, IL-8, TNF-a, IGF-1, TGF-β1, and VEGF mRNA. Light irradiation at 660 and 830 nm projected onto hORSCs accelerated in vitro migration. LED-irradiated hORSCs increased hDPCs proliferation when they were co-cultured. The conditioned medium from LED-irradiated hORSCs was sufficient to stimulate hDPCs proliferation. CONCLUSION These results demonstrate that LED light irradiation induced hORSC proliferation and migration and inhibited apoptosis in vitro. The growth-promoting effects of LEDs on hORSCs appear to be associated with direct stimulation of the Wnt5a/β-catenin and ERK signaling pathway. Lasers Surg. Med. 49:940-947, 2017. © 2017 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Jung E Kim
- Department of Dermatology, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, 180, Wangsan-ro, Dongdaemun-gu, Seoul, Korea
| | - Young J Woo
- Department of Dermatology, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, 180, Wangsan-ro, Dongdaemun-gu, Seoul, Korea
| | - Ki M Sohn
- Department of Dermatology, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, 180, Wangsan-ro, Dongdaemun-gu, Seoul, Korea
| | - Kwan H Jeong
- Department of Dermatology, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, 180, Wangsan-ro, Dongdaemun-gu, Seoul, Korea
| | - Hoon Kang
- Department of Dermatology, St. Paul's Hospital, College of Medicine, The Catholic University of Korea, 180, Wangsan-ro, Dongdaemun-gu, Seoul, Korea
| |
Collapse
|
235
|
McCart EA, Thangapazham RL, Lombardini ED, Mog SR, Panganiban RAM, Dickson KM, Mansur RA, Nagy V, Kim SY, Selwyn R, Landauer MR, Darling TN, Day RM. Accelerated senescence in skin in a murine model of radiation-induced multi-organ injury. JOURNAL OF RADIATION RESEARCH 2017; 58:636-646. [PMID: 28340212 PMCID: PMC5737212 DOI: 10.1093/jrr/rrx008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 01/10/2017] [Indexed: 05/24/2023]
Abstract
Accidental high-dose radiation exposures can lead to multi-organ injuries, including radiation dermatitis. The types of cellular damage leading to radiation dermatitis are not completely understood. To identify the cellular mechanisms that underlie radiation-induced skin injury in vivo, we evaluated the time-course of cellular effects of radiation (14, 16 or 17 Gy X-rays; 0.5 Gy/min) in the skin of C57BL/6 mice. Irradiation of 14 Gy induced mild inflammation, observed histologically, but no visible hair loss or erythema. However, 16 or 17 Gy radiation induced dry desquamation, erythema and mild ulceration, detectable within 14 days post-irradiation. Histological evaluation revealed inflammation with mast cell infiltration within 14 days. Fibrosis occurred 80 days following 17 Gy irradiation, with collagen deposition, admixed with neutrophilic dermatitis, and necrotic debris. We found that in cultures of normal human keratinocytes, exposure to 17.9 Gy irradiation caused the upregulation of p21/waf1, a marker of senescence. Using western blot analysis of 17.9 Gy-irradiated mice skin samples, we also detected a marker of accelerated senescence (p21/waf1) 7 days post-irradiation, and a marker of cellular apoptosis (activated caspase-3) at 30 days, both preceding histological evidence of inflammatory infiltrates. Immunohistochemistry revealed reduced epithelial stem cells from hair follicles 14-30 days post-irradiation. Furthermore, p21/waf1 expression was increased in the region of the hair follicle stem cells at 14 days post 17 Gy irradiation. These data indicate that radiation induces accelerated cellular senescence in the region of the stem cell population of the skin.
Collapse
Affiliation(s)
- Elizabeth A McCart
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Rajesh L Thangapazham
- Department of Dermatology, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Eric D Lombardini
- Current address: Public Health Activity-Fort Carson, 1661 O'Connell Blvd, Fort Carson, CO 80913, USA
| | - Steven R Mog
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, 5001 Campus Drive, College Park, MD 20740, USA
| | - Ronald Allan M Panganiban
- Current address: Molecular and Integrative Physiological Sciences, Harvard TH Chan School of Public Health, 677 Huntington Ave., Boston, MA 02115, USA
| | - Kelley M Dickson
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Rihab A Mansur
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Vitaly Nagy
- Department of Radiation Dosimetry, Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Sung-Yop Kim
- Current address: Department of Radiology, University of New Mexico, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Reed Selwyn
- Current address: Department of Radiology, University of New Mexico, 1 University of New Mexico, Albuquerque, NM 87131, USA
| | - Michael R Landauer
- Radiation Countermeasures Program, Scientific Research Department, Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Thomas N Darling
- Department of Dermatology, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| | - Regina M Day
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD 20814, USA
| |
Collapse
|
236
|
Talavera-Adame D, Newman D, Newman N. Conventional and novel stem cell based therapies for androgenic alopecia. Stem Cells Cloning 2017; 10:11-19. [PMID: 28979149 PMCID: PMC5588753 DOI: 10.2147/sccaa.s138150] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The prevalence of androgenic alopecia (AGA) increases with age and it affects both men and women. Patients diagnosed with AGA may experience decreased quality of life, depression, and feel self-conscious. There are a variety of therapeutic options ranging from prescription drugs to non-prescription medications. Currently, AGA involves an annual global market revenue of US$4 billion and a growth rate of 1.8%, indicating a growing consumer market. Although natural and synthetic ingredients can promote hair growth and, therefore, be useful to treat AGA, some of them have important adverse effects and unknown mechanisms of action that limit their use and benefits. Biologic factors that include signaling from stem cells, dermal papilla cells, and platelet-rich plasma are some of the current therapeutic agents being studied for hair restoration with milder side effects. However, most of the mechanisms exerted by these factors in hair restoration are still being researched. In this review, we analyze the therapeutic agents that have been used for AGA and emphasize the potential of new therapies based on advances in stem cell technologies and regenerative medicine.
Collapse
Affiliation(s)
| | | | - Nathan Newman
- American Advanced Medical Corp. (Private Practice), Beverly Hills, CA
| |
Collapse
|
237
|
The Use of Adipose-Derived Stem Cells in Selected Skin Diseases (Vitiligo, Alopecia, and Nonhealing Wounds). Stem Cells Int 2017; 2017:4740709. [PMID: 28904532 PMCID: PMC5585652 DOI: 10.1155/2017/4740709] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 06/03/2017] [Accepted: 06/18/2017] [Indexed: 12/15/2022] Open
Abstract
The promising results derived from the use of adipose-derived stem cells (ADSCs) in many diseases are a subject of observation in preclinical studies. ADSCs seem to be the ideal cell population for the use in regenerative medicine due to their easy isolation, nonimmunogenic properties, multipotential nature, possibilities for differentiation into various cell lines, and potential for angiogenesis. This article reviews the current data on the use of ADSCs in the treatment of vitiligo, various types of hair loss, and the healing of chronic wounds.
Collapse
|
238
|
Ishihara T, Yamashita H, Sakurai T, Morita J, Sakamoto K, Ishii A, Sasaki M. Morphological analysis of patchy thickening and reddish discoloration of active hair growth areas in the skin of New Zealand White rabbits. J Toxicol Pathol 2017; 30:315-322. [PMID: 29097841 PMCID: PMC5660953 DOI: 10.1293/tox.2017-0033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/28/2017] [Indexed: 12/01/2022] Open
Abstract
Patchy thickening and reddish discoloration of active hair growth areas of skin in rabbits are occasionally found, and this gross feature could affect precise evaluation when conducting a dermal irritation test. Since little is known about the mechanism of this phenomenon, we examined the dorsal skin of New Zealand White rabbits morphologically and immunohistochemically in order to identify the possible mechanism responsible for developing these skin changes in relation to the hair cycle. Skin samples from 4 rabbits were divided into three groups (5 samples/group) based on their macroscopic characteristics: a thickened skin, erythematous skin, and smooth skin group. Histomorphological examination revealed that the percentage of hair follicles in the anagen phase, hair follicle length, hair follicle area, and proliferating cell nuclear antigen-positive cells in the hair follicles were greater in the thickened skin and erythematous skin groups than in the smooth skin group. Unlike mice and rats, the dermis was nearly adjacent to the muscular layer with a thin hypodermis, and the whole lengths of hair follicles in the anagen phase were located in the dermis in the rabbit skin. These results suggest that large hair follicles in the anagen phase compressed the surrounding dermis; therefore, the skin was grossly raised and showed thickening. A higher number of CD31-positive blood vessels, suggesting the occurrence of angiogenesis, was observed around the hair follicles in the erythematous skin group, and they seemed to affect the reddish discoloration of skin noted grossly.
Collapse
Affiliation(s)
- Tomoko Ishihara
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Haruhiro Yamashita
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Takanobu Sakurai
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Junya Morita
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Kouji Sakamoto
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Aiko Ishii
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| | - Minoru Sasaki
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama-shi, Saitama 331-9530, Japan
| |
Collapse
|
239
|
Evaluation of the Effect of Plant Mixture Ethanol Extracts Containing Biota orientalis L. Extract on Suppression of Sebum in Cultured Sebocytes and on Stimulation of Growth of Keratinocytes Co-cultured with Hair Papilla Cells. COSMETICS 2017. [DOI: 10.3390/cosmetics4030029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
|
240
|
Garg S, Manchanda S. Platelet-rich plasma-an 'Elixir' for treatment of alopecia: personal experience on 117 patients with review of literature. Stem Cell Investig 2017; 4:64. [PMID: 28815175 DOI: 10.21037/sci.2017.06.07] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 05/26/2017] [Indexed: 11/06/2022]
Abstract
Platelet-rich plasma (PRP) has emerged as a new treatment modality in regenerative plastic surgery and dermatology. PRP is a simple, cost-effective and feasible treatment option with high patient satisfaction for hair loss and can be regarded as a valuable adjuvant treatment modality for androgenic alopecia and other types of non-scarring alopecias. Authors have proposed a hair model termed "Golden anchorage with 'molecular locking' of ectodermal and mesenchymal components for survival and integrity of hair follicle (HF)" in this article. Golden anchorage comprises of bulge stem cells, ectodermal basement membrane and bulge portion of APM. PRP with its autologous supply of millions of growth factors works on 'Golden anchorage' along with keratinocytes (PDGF), dermal papilla (IGF and fibroblast growth factor), vasculature (VEGF and PDGF) and neural cells (Nerve Growth Factor) in a multipronged manner serving as an 'elixir' for hair growth and improving overall environment.
Collapse
Affiliation(s)
- Suruchi Garg
- Department of Dermatology and Aesthetic Surgery, Aura Skin Institute, Chandigarh, India
| | - Shweta Manchanda
- Department of Dermatology and Aesthetic Surgery, Aura Skin Institute, Chandigarh, India
| |
Collapse
|
241
|
Guo H, Gao WV, Endo H, McElwee KJ. Experimental and early investigational drugs for androgenetic alopecia. Expert Opin Investig Drugs 2017; 26:917-932. [DOI: 10.1080/13543784.2017.1353598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hongwei Guo
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada
- Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Wendi Victor Gao
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada
| | - Hiromi Endo
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada
- Department of Dermatology, Ohashi Hospital, Toho University, Tokyo, Japan
| | - Kevin John McElwee
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada
- Vancouver Coastal Health Research Institute, Vancouver, Canada
| |
Collapse
|
242
|
Herman A, Herman AP. Topically used herbal products for the treatment of hair loss: preclinical and clinical studies. Arch Dermatol Res 2017; 309:595-610. [DOI: 10.1007/s00403-017-1759-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 06/26/2017] [Indexed: 11/24/2022]
|
243
|
Akanda MR, Kim HY, Park M, Kim IS, Ahn D, Tae HJ, Park BY. Hair growth promoting activity of discarded biocomposite keratin extract. J Biomater Appl 2017; 32:230-241. [PMID: 28662599 DOI: 10.1177/0885328217717076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Keratin biomaterial has been used in regenerative medicine owing to its in-vivo and in-vitro biocompatibility. The present study was aimed to investigate the hair growth promoting activity of keratin extract and its mechanism of action. Keratin extract was topically applied on the synchronized depilated dorsal skin of telogenic C57BL/6 mice and promoted hair growth by inducing the anagen phase. The histomorphometric observation indicated significantly increases the number, shaft of hair follicles and deep subcutis area in the keratin extract treated group in contrast to the control group, which was considered an indication of anagen phase induction. Subsequently, the quantitative real-time polymerase chain reaction analysis revealed that fibroblast growth factor-10, vascular endothelial growth factor, insulin-like growth factor-1, β-catenin, and Shh were expressed earlier in the keratin extract-treated group than in the control group. Besides, keratin extract has been observed to be biocompatible when analyzed with 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and 4',6-diamidino-2-phenylindole staining using immortalized human keratinocyte cells, showing more than 90% cell viability. Our study demonstrated that keratin extract stimulating hair follicle growth by inducing the growth phase; anagen in telogenic C57BL/6 mice and thus the topical application of keratin extract may represent a promising biomaterial for the management and applications of hair follicle disorder.
Collapse
Affiliation(s)
- Md Rashedunnabi Akanda
- 1 College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Republic of Korea.,2 Department of Pharmacology and Toxicology, Sylhet Agricultural University, Bangladesh
| | - Hak-Yong Kim
- 3 Department of BIN Fusion Technology, Chonbuk National University, Jeonju, Republic of Korea
| | - Mira Park
- 4 Department of Organic Materials & Fiber Engineering, Chonbuk National University, Jeonju, Republic of Korea
| | - In-Shik Kim
- 1 College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Republic of Korea
| | - Dongchoon Ahn
- 1 College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Republic of Korea
| | - Hyun-Jin Tae
- 1 College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Republic of Korea
| | - Byung-Yong Park
- 1 College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Republic of Korea
| |
Collapse
|
244
|
Hwang HS, Hwang TH, Pyo AJ, Ju EH. Anti-oxidant Efficacy and Effects on Expression of Growth Factors in Human Hair Follicle Dermal Papilla Cells of Rosa multiflora Root Extracts. ACTA ACUST UNITED AC 2017. [DOI: 10.20402/ajbc.2016.0109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
245
|
Jeong GH, Boisvert WA, Xi MZ, Zhang YL, Choi YB, Cho S, Lee S, Choi C, Lee BH. Effect of Miscanthus sinensis var. purpurascens Flower Extract on Proliferation and Molecular Regulation in Human Dermal Papilla Cells and Stressed C57BL/6 Mice. Chin J Integr Med 2017; 24:591-599. [PMID: 28497393 DOI: 10.1007/s11655-017-2755-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To investigate the hair growth-promoting effect of Miscanthus sinensis var. purpurascens (MSP) flower extracton on in vitro and in vivo models. METHODS MSP flower extract was extracted in 99.9% methanol and applied to examine the proliferation of human dermal papilla cells (hDPCs) in vitro at the dose of 3.92-62.50 μg/mL and hair growth of C57BL/6 mice in vivo at the dose of 1000 μg/mL. The expression of transforming growth factor β1 (TGF-β1), hepatocyte growth factor (HGF), β-catenin, substance P was measured by relative quantitative realtime polymerase chain reaction. Histopathological and immunohistochemical analysis were performed. RESULTS MSP (7.81 μg/mL) down-regulated TGF-β1 and up-regulated HGF and β-catenin in hDPCs (P<0.01). MSP (1000 μg/mL)-treated mice showed the earlier transition of hair follicles from the telogen to the anagen phase. The number of mast cells was lower in the MSP-treated mice than in other groups (P<0.05 vs. NCS group). Substance P and TGF-β1 were expressed in hair follicles and skin of the MSP group lower than that in negative control. Stem cell factor in hair follicles was up-regulated in the MSP-treated mice (P<0.01). CONCLUSIONS The MSP flower extract may have hair growth-promotion activities.
Collapse
Affiliation(s)
- Gi Hee Jeong
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - William A Boisvert
- Center for Cardiovascular Research, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Mei-Zhu Xi
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Yi-Lin Zhang
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Young-Bin Choi
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Sunghun Cho
- Department of Integrative Plant Science, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Sanghyun Lee
- Department of Integrative Plant Science, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Changsun Choi
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea
| | - Bog-Hieu Lee
- Department of Food and Nutrition, College of Biotechnology and Natural Resources, Chung-Ang University, Anseong, 17546, Republic of Korea.
| |
Collapse
|
246
|
|
247
|
Abstract
Androgenetic alopecia (AGA) is characterized by a non-scarring progressive miniaturization of the hair follicle in predisposed men and women with a pattern distribution. Although AGA is a very prevalent condition, approved therapeutic options are limited. This article discusses the current treatment alternatives including their efficacy, safety profile, and quality of evidence. Finasteride and minoxidil for male androgenetic alopecia and minoxidil for female androgenetic alopecia still are the therapeutic options with the highest level evidence. The role of antiandrogens for female patients, the importance of adjuvant therapies, as well as new drugs and procedures are also addressed.
Collapse
Affiliation(s)
- Yanna Kelly
- Department of Dermatology, Universidade de São Paulo, São Paulo, SP, Brazil. .,Department of Dermatology, Hospital do Servidor Publico Municipal de São Paulo, São Paulo, SP, Brazil. .,, 1364, Oscar Freire Street, São Paulo, SP, 05409-010, Brazil.
| | - Aline Blanco
- Department of Dermatology, Universidade Federal do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Antonella Tosti
- Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| |
Collapse
|
248
|
Effect of sinapic acid on hair growth promoting in human hair follicle dermal papilla cells via Akt activation. Arch Dermatol Res 2017; 309:381-388. [PMID: 28321536 DOI: 10.1007/s00403-017-1732-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 09/07/2016] [Accepted: 03/07/2017] [Indexed: 12/17/2022]
Abstract
Hair loss known as alopecia is caused by abnormal hair follicle cycling including shortening of the anagen (growth) phase and changing of hair follicle morphology with miniaturization. In accordance with the life extension, the quality of life is considered to be a most important thing. The yearning for healthy and beautiful hair and low self esteem due to hair loss had negative influence on the quality of life with psychosocial maladjustment. The objective of this research was to identify new compound that can be used as a drug to promote hair growth. We investigated whether the function of sinapic acid (SA) is able to promote hair growth in human hair follicle dermal papilla cells (hHFDPC). We showed that treatment of SA in hHFDPC could induce proliferation and the activation of Akt signaling in HFDPC. In addition, SA could stimulate the expressions of the several growth factors, insulin-like growth factor 1, and vascular endothelial growth factor for hair growth. We showed that SA led to an increased level of phospho-GSK-3β and β-catenin accumulation in HFDPC. Finally, the promoting effect of SA in hHFDPC cell growth occurred by the induction of cell cycle progression. These results suggest that SA could be one of the potential candidate compounds for the treatment of alopecia by inducing hair growth through triggering the expressions of growth factors via activation of Akt and subsequent inactivation of GSK-3β /β-catenin pathway.
Collapse
|
249
|
Karnaukhov VK, Lukyanova AA, Lukashina MI, Vorobeva ES, Afanasov IM. Тіе Modern treatment of androgenetic alopecia. VESTNIK DERMATOLOGII I VENEROLOGII 2017. [DOI: 10.25208/0042-4609-2017-93-1-21-30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Androgenetic alopecia (AGA) is the most common reason for hair loss. Its frequency in Caucasian population is up to 80% in men and 42% in women. Current gold standard for AGA treatment includes minoxidil and/or finasteride. Both drugs have moderate treatment efficacy and can cause significant side effects. Minoxidil is the only option for treatment of AGA in women since finasteride has no efficacy. This review considers actual concepts of molecular mechanisms of pathogenesis and current treatment options of AGA with their limitations and shortcomings. Current state and perspectives of novel approaches to AGA treatment, potentially more effective and safe than minoxidil and finasteride, are described. The review discusses growth factors and cytokines, topical 5-alpha-reductase inhibitors, androgen receptor antagonists, prostaglandin analogs and antagonists, Wnt signaling activators and platelet-rich plasma injections.
Collapse
|
250
|
Byeon JY, Choi HJ, Park ES, Kim JY. Effectiveness of Hair Care Products Containing Placental Growth Factor for the Treatment of Postpartum Telogen Effluvium. ARCHIVES OF AESTHETIC PLASTIC SURGERY 2017. [DOI: 10.14730/aaps.2017.23.2.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Je Yeon Byeon
- Department of Plastic and Reconstructive Surgery, Soonchunhyang Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Hwan Jun Choi
- Department of Plastic and Reconstructive Surgery, Soonchunhyang Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Eun Soo Park
- Department of Plastic and Reconstructive Surgery, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Jin Young Kim
- Department of Plastic and Reconstructive Surgery, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| |
Collapse
|