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Li Y, Dong T, Wan S, Xiong R, Jin S, Dai Y, Guan C. Application of multi-omics techniques to androgenetic alopecia: Current status and perspectives. Comput Struct Biotechnol J 2024; 23:2623-2636. [PMID: 39021583 PMCID: PMC11253216 DOI: 10.1016/j.csbj.2024.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
The rapid advancement of sequencing technologies has enabled the generation of vast datasets, allowing for the in-depth analysis of sequencing data. This analysis has facilitated the validation of novel pathogenesis hypotheses for understanding and treating diseases through ex vivo and in vivo experiments. Androgenetic alopecia (AGA), a common hair loss disorder, has been a key focus of investigators attempting to uncover its underlying mechanisms. Abnormal changes in mRNA, proteins, and metabolites have been identified in individuals with AGA, and future developments in sequencing technologies may reveal new biomarkers for AGA. By integrating multiple omics analysis datasets such as genomics, transcriptomics, proteomics, and metabolomics-along with clinical phenotype data-we can achieve a comprehensive understanding of the molecular underpinnings of AGA. This review summarizes the data-mining studies conducted on various omics analysis datasets as related to AGA that have been adopted to interpret the biological data obtained from different omics layers. We herein discuss the challenges of integrative omics analyses, and suggest that collaborative multi-omics studies can enhance the understanding of the complete pathomechanism(s) of AGA by focusing on the interaction networks comprising DNA, RNA, proteins, and metabolites.
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Affiliation(s)
- Yujie Li
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Tingru Dong
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Sheng Wan
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Renxue Xiong
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Shiyu Jin
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
| | - Yeqin Dai
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
| | - Cuiping Guan
- Hangzhou Third Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou 310009, China
- Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou 310009, China
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2
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Cheng H, Liu F, Zhou M, Chen S, Huang H, Liu Y, Zhao X, Zhang Q, Zhou X, Li Z, Cai H. Enhancement of hair growth through stimulation of hair follicle stem cells by prostaglandin E2 collagen matrix. Exp Cell Res 2022; 421:113411. [PMID: 36351501 DOI: 10.1016/j.yexcr.2022.113411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/02/2022] [Accepted: 11/04/2022] [Indexed: 11/07/2022]
Abstract
Prostaglandin metabolism is involved in the regulation of the periodic process of hair follicles. Preliminary research data reported that prostaglandin E2 (PGE2) exhibits potential in hair growth. However, the relevant evidence is still insufficient. Herein, we prepared a PGE2 matrix by conjugating PGE2 with collagen via crosslinkers to avoid rapid degradation of PGE2 molecules in vivo. First, we measured the physical properties of the PGE2 matrix. A mouse model of hair loss was established, and PGE2 matrix subcutaneous injection was applied to evaluate hair growth. Under different treatments with the PGE2 matrix, the morphology of hair follicles, the dynamic expression of hair follicle stem cell markers and key regulators in the hair growth cycle were explored. Our data revealed that the PGE2 matrix increased the proportion of developing hair follicles at the early growth stage. Improvements in hair follicle stem cells, such as Sox9+ and Lgr5+ cells, have also been confirmed as therapeutic effects of PGE2 to stimulate hair follicle growth. Our study indicated that PGE2 exhibits effective roles in hair development during anagen. Furthermore, the results also highlight the potential of the PGE2 delivery system as a novel therapeutic strategy for the treatment of hair disorders in the future.
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Affiliation(s)
- Hui Cheng
- Nankai University School of Medicine, Tianjin, China; The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Sciences, Tianjin, China; Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Nankai University Affiliated Hospital of Obstetrics and Gynecology, Tianjin, China
| | - Fei Liu
- Department of Urology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Manqian Zhou
- Department of Radiation Oncology, Tianjin Union Medical Center, Nankai University, Tianjin, China
| | - Shang Chen
- Nankai University School of Medicine, Tianjin, China
| | - Haoyan Huang
- Nankai University School of Medicine, Tianjin, China
| | - Yue Liu
- Nankai University School of Medicine, Tianjin, China
| | - Xiaotong Zhao
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Qiaonan Zhang
- Nankai University School of Medicine, Tianjin, China
| | - Xinrun Zhou
- Nankai University School of Medicine, Tianjin, China
| | - Zongjin Li
- Nankai University School of Medicine, Tianjin, China; The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, The College of Life Sciences, Tianjin, China; Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin Central Hospital of Gynecology Obstetrics, Nankai University Affiliated Hospital of Obstetrics and Gynecology, Tianjin, China; Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang, China; State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Beijing, China.
| | - Hong Cai
- Department of Dermatology, Air Force Medical Center, PLA, Beijing, China.
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3
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Rajendran RL, Gangadaran P, Kwack MH, Oh JM, Hong CM, Sung YK, Lee J, Ahn BC. Application of extracellular vesicles from mesenchymal stem cells promotes hair growth by regulating human dermal cells and follicles. World J Stem Cells 2022; 14:527-538. [PMID: 36157528 PMCID: PMC9350621 DOI: 10.4252/wjsc.v14.i7.527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/19/2022] [Accepted: 06/24/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Dermal papillae (DP) and outer root sheath (ORS) cells play important roles in hair growth and regeneration by regulating the activity of hair follicle (HF) cells.
AIM To investigate the effects of human mesenchymal stem cell-derived extracellular vesicles (hMSC-EVs) on DP and ORS cells as well as HFs. EVs are known to regulate various cellular functions. However, the effects of hMSC-EVs on hair growth, particularly on human-derived HF cells (DP and ORS cells), and the possible mechanisms underlying these effects are unknown.
METHODS hMSC-EVs were isolated and characterized using transmission electron microscopy, nanoparticle tracking analysis, western blotting, and flow cytometry. The activation of DP and ORS cells was analyzed using cellular proliferation, migration, western blotting, and real-time polymerase chain reaction. HF growth was evaluated ex vivo using human HFs.
RESULTS Wnt3a is present in a class of hMSC-EVs and associated with the EV membrane. hMSC-EVs promote the proliferation of DP and ORS cells. Moreover, they translocate β-catenin into the nucleus of DP cells by increasing the expression of β-catenin target transcription factors (Axin2, EP2 and LEF1) in DP cells. Treatment with hMSC-EVs also promoted the migration of ORS cells and enhanced the expression of keratin (K) differentiation markers (K6, K16, K17, and K75) in ORS cells. Furthermore, treatment with hMSC-EVs increases hair shaft elongation in cultured human HFs.
CONCLUSION These findings suggest that hMSC-EVs are potential candidates for further preclinical and clinical studies on hair loss treatment.
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Affiliation(s)
- Ramya Lakshmi Rajendran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
| | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
| | - Mi Hee Kwack
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
| | - Ji Min Oh
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
| | - Chae Moon Hong
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, South Korea
| | - Young Kwan Sung
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
| | - Jaetae Lee
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, South Korea
| | - Byeong-Cheol Ahn
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, Department of Biomedical Sciences, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu 41944, South Korea
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4
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3D Spheroid Human Dermal Papilla Cell as an Effective Model for the Screening of Hair Growth Promoting Compounds: Examples of Minoxidil and 3,4,5-Tri-O-caffeoylquinic acid (TCQA). Cells 2022; 11:cells11132093. [PMID: 35805177 PMCID: PMC9265566 DOI: 10.3390/cells11132093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 11/29/2022] Open
Abstract
Dermal papilla cells (DPCs) are an important element of the hair follicle (HF) niche, widely used as an in vitro model to study hair growth-related research. These cells are usually grown in 2D culture, but this system did not show efficient therapeutic effects on HF regeneration and growth, and key differences were observed between cell activity in vitro and in vivo. Recent studies have showed that DPCs grown in 3D hanging spheroids are more morphologically akin to an intact DP microenvironment. In this current study, global gene molecular analysis showed that the 3D model highly affected cell adhesion molecules and hair growth-related pathways. Furthermore, we compared the expression of signalling molecules and metabolism-associated proteins of DPCs treated with minoxidil (an FDA-approved drug for hair loss treatment) and 3,4,5-tri-O-caffeoylquinic acid (TCQA) (recently found to induce hair growth in vitro and in vivo) in 3D spheroid hanging drops and a 2D monolayer using DNA microarray analysis. Further validations by determining the gene and protein expressions of key signature molecules showed the suitability of this 3D system for enhancing the DPC activity of the hair growth-promoting agents minoxidil and TCQA.
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Papukashvili D, Rcheulishvili N, Liu C, Xie F, Tyagi D, He Y, Wang PG. Perspectives on miRNAs Targeting DKK1 for Developing Hair Regeneration Therapy. Cells 2021; 10:2957. [PMID: 34831180 PMCID: PMC8616136 DOI: 10.3390/cells10112957] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 02/08/2023] Open
Abstract
Androgenetic alopecia (AGA) remains an unsolved problem for the well-being of humankind, although multiple important involvements in hair growth have been discovered. Up until now, there is no ideal therapy in clinical practice in terms of efficacy and safety. Ultimately, there is a strong need for developing a feasible remedy for preventing and treating AGA. The Wnt/β-catenin signaling pathway is critical in hair restoration. Thus, AGA treatment via modulating this pathway is rational, although challenging. Dickkopf-related protein 1 (DKK1) is distinctly identified as an inhibitor of canonical Wnt/β-catenin signaling. Thus, in order to stimulate the Wnt/β-catenin signaling pathway, inhibition of DKK1 is greatly demanding. Studying DKK1-targeting microRNAs (miRNAs) involved in the Wnt/β-catenin signaling pathway may lay the groundwork for the promotion of hair growth. Bearing in mind that DKK1 inhibition in the balding scalp of AGA certainly makes sense, this review sheds light on the perspectives of miRNA-mediated hair growth for treating AGA via regulating DKK1 and, eventually, modulating Wnt/β-catenin signaling. Consequently, certain miRNAs regulating the Wnt/β-catenin signaling pathway via DKK1 inhibition might represent attractive candidates for further studies focusing on promoting hair growth and AGA therapy.
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Affiliation(s)
| | | | | | | | | | - Yunjiao He
- School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (D.P.); (N.R.); (C.L.); (F.X.); (D.T.)
| | - Peng George Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen 518000, China; (D.P.); (N.R.); (C.L.); (F.X.); (D.T.)
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6
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Park JM, Jun MS, Kim JA, Mali NM, Hsi TC, Cho A, Kim JC, Kim JY, Seo I, Kim J, Kim M, Oh JW. Restoration of Immune Privilege in Human Dermal Papillae Controlling Epithelial-Mesenchymal Interactions in Hair Formation. Tissue Eng Regen Med 2021; 19:105-116. [PMID: 34626334 DOI: 10.1007/s13770-021-00392-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/02/2021] [Accepted: 08/22/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Hair follicles are among a handful of organs that exhibit immune privilege. Dysfunction of the hair follicle immune system underlies the development of inflammatory diseases, such as alopecia areata. METHODS Quantitative reverse transcription PCR and immunostaining was used to confirm the expression of major histocompatibility complex class I in human dermal papilla cells. Through transcriptomic analyses of human keratinocyte stem cells, major histocompatibility complex class I was identified as differentially expressed genes. Organ culture and patch assay were performed to assess the ability of WNT3a conditioned media to rescue immune privilege. Lastly, CD8+ T cells were detected near the hair bulb in alopecia areata patients through immunohistochemistry. RESULTS Inflammatory factors such as tumor necrosis factor alpha and interferon gamma were verified to induce the expression of major histocompatibility complex class I proteins in dermal papilla cells. Additionally, loss of immune privilege of hair follicles was rescued following treatment with conditioned media from outer root sheath cells. Transcriptomic analyses found 58 up-regulated genes and 183 down-regulated genes related in MHC class I+ cells. Using newborn hair patch assay, we demonstrated that WNT3a conditioned media with epidermal growth factor can restore hair growth. In alopecia areata patients, CD8+ T cells were increased during the transition from mid-anagen to late catagen. CONCLUSION Identification of mechanisms governing epithelial and mesenchymal interactions of the hair follicle facilitates an improved understanding of the regulation of hair follicle immune privilege.
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Affiliation(s)
- Jung Min Park
- Department of Anatomy, Kyungpook National University School of Medicine, Daegu, Korea.,Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Korea.,Department of Microbiology, Kyungpook National University School of Medicine, Daegu, Korea.,Immune Square Inc., Daegu, Korea
| | - Mee Sook Jun
- Department of Anatomy, Kyungpook National University School of Medicine, Daegu, Korea.,Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Korea
| | - Jung-A Kim
- Department of Immunology, Kyungpook National University School of Medicine, Daegu, Korea.,Hair Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Nanda Maya Mali
- Department of Anatomy, Kyungpook National University School of Medicine, Daegu, Korea.,Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Korea
| | - Tsai-Ching Hsi
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Areum Cho
- Department of Anatomy, Kyungpook National University School of Medicine, Daegu, Korea
| | - Jung Chul Kim
- Department of Immunology, Kyungpook National University School of Medicine, Daegu, Korea.,Hair Transplantation Center, Kyungpook National University Hospital, Daegu, Korea
| | - Jun Young Kim
- Department of Dermatology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Incheol Seo
- Department of Microbiology, Dongguk University College of Medicine, Gyeongju, Korea
| | - Jungmin Kim
- Department of Microbiology, Kyungpook National University School of Medicine, Daegu, Korea
| | - Moonkyu Kim
- Department of Immunology, Kyungpook National University School of Medicine, Daegu, Korea. .,Hair Transplantation Center, Kyungpook National University Hospital, Daegu, Korea.
| | - Ji Won Oh
- Department of Anatomy, Kyungpook National University School of Medicine, Daegu, Korea. .,Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Korea. .,Immune Square Inc., Daegu, Korea. .,Hair Transplantation Center, Kyungpook National University Hospital, Daegu, Korea.
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7
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Ryu YC, Lee DH, Shim J, Park J, Kim YR, Choi S, Bak SS, Sung YK, Lee SH, Choi KY. KY19382, a novel activator of Wnt/β-catenin signalling, promotes hair regrowth and hair follicle neogenesis. Br J Pharmacol 2021; 178:2533-2546. [PMID: 33751552 PMCID: PMC8251890 DOI: 10.1111/bph.15438] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 01/01/2023] Open
Abstract
Background and Purpose The promotion of hair regeneration and growth heavily depends on the activation of Wnt/β‐catenin signalling in the hair follicle, including dermal papilla (DP). KY19382, one of the newly synthesized analogues of indirubin‐3′‐monoxime (I3O), was identified as a Wnt/β‐catenin signalling activator via inhibition of the interaction between CXXC‐type zinc finger protein 5 (CXXC5) and dishevelled (Dvl). Given the close relationship between the Wnt/β‐catenin signalling and hair regeneration, we investigated the effect of KY19382 on hair regrowth and hair follicle neogenesis. Experimental Approach In vitro hair induction effects of KY19382 were performed in human DP cells. The hair elongation effects of KY19382 were confirmed through the human hair follicle and vibrissa culture system. In vivo hair regeneration abilities of KY19382 were identified in three models: hair regrowth, wound‐induced hair follicle neogenesis (WIHN) and hair patch assays using C57BL/6 mice. The hair regeneration abilities were analysed by immunoblotting, alkaline phosphatase (ALP) and immunohistochemical staining. Key Results KY19382 activated Wnt/β‐catenin signalling and elevated expression of ALP and the proliferation marker PCNA in DP cells. KY19382 also increased hair length in ex vivo‐cultured mouse vibrissa and human hair follicles and induced hair regrowth in mice. Moreover, KY19382 significantly promoted the generation of de novo hair follicles as shown by WIHN and hair patch assays. Conclusion and Implications These results indicate that KY19382 is a potential therapeutic drug that exhibits effective hair regeneration ability via activation of the Wnt/β‐catenin signalling for alopecia treatments.
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Affiliation(s)
- Yeong Chan Ryu
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Dong-Hwan Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Jiyong Shim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Jiyeon Park
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - You-Rin Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Sehee Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Soon Sun Bak
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Young Kwan Sung
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | | | - Kang-Yell Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea.,CK Biotech Inc, Engineering Research Park, Seoul, Korea
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8
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Rajendran RL, Gangadaran P, Kwack MH, Oh JM, Hong CM, Sung YK, Lee J, Ahn BC. Human fibroblast-derived extracellular vesicles promote hair growth in cultured human hair follicles. FEBS Lett 2021; 595:942-953. [PMID: 33523480 DOI: 10.1002/1873-3468.14050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/05/2021] [Accepted: 01/19/2021] [Indexed: 12/15/2022]
Abstract
Hair loss is a prevalent medical condition affecting both genders. In this study, we investigate the effects of a specific class of extracellular vesicles (EVs), namely human normal fibroblast-derived EVs (hFB-EVs), on human dermal papilla (DP) and outer root sheath (ORS) cells and examine the molecular mechanisms responsible for hair growth in hair follicles (HFs). We find that Wnt3a, which maintains the hair-generating activity of DP cells, is enriched and more strongly associated with hFB-EVs than with fibroblasts. Furthermore, hFB-EV-associated Wnt3a mediated receptor activation in cultured DP cells, leading to an increase in β-catenin in the cytoplasm and its translocation into the nucleus, thereby elevating expression of the target genes Axin2 and Lef1. Additionally, hFB-EVs promoted the migration, proliferation, and differentiation of ORS cells and elongation of the hair shaft in human HFs. These findings revealed a novel mechanism by which hFB-EVs influence hair growth.
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Affiliation(s)
- Ramya Lakshmi Rajendran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Prakash Gangadaran
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Korea.,BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Mi Hee Kwack
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, School of Medicine, Kyungpook National University, Daegu, Korea.,Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Ji Min Oh
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Chae Moon Hong
- Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Young Kwan Sung
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, School of Medicine, Kyungpook National University, Daegu, Korea.,Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Jaetae Lee
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Korea.,Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Byeong-Cheol Ahn
- Department of Nuclear Medicine, School of Medicine, Kyungpook National University, Daegu, Korea.,BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, School of Medicine, Kyungpook National University, Daegu, Korea.,Department of Nuclear Medicine, Kyungpook National University Hospital, Daegu, Korea
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9
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Ji G, Zhang M, Liu Y, Shan Y, Tu Y, Ju X, Zou J, Shu J, Wu J, Xie J. A gene co‐expression network analysis of the candidate genes and molecular pathways associated with feather follicle traits of chicken skin. J Anim Breed Genet 2020; 138:122-134. [DOI: 10.1111/jbg.12481] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/23/2020] [Accepted: 04/03/2020] [Indexed: 12/23/2022]
Affiliation(s)
- Gai‐ge Ji
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Ming Zhang
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yi‐fan Liu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yan‐ju Shan
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Yun‐jie Tu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Xiao‐jun Ju
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jian‐min Zou
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jing‐ting Shu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province Institute of Poultry Science Chinese Academy of Agricultural Science Yangzhou China
| | - Jun‐feng Wu
- Jiangsu Li‐hua Animal Husbandry Company Jiangsu China
| | - Jin‐fang Xie
- Jiangxi Academy of Agricultural Sciences Nanchang China
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10
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Effect of High-Dose Topical Minoxidil on Erythrocyte Quality in SKH1 Hairless Mice. Animals (Basel) 2020; 10:ani10040731. [PMID: 32340110 PMCID: PMC7222831 DOI: 10.3390/ani10040731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/11/2020] [Accepted: 04/20/2020] [Indexed: 11/21/2022] Open
Abstract
Simple Summary In any animal species, involuntary exposure to unknown agents may increase genetic material damage. This genetic damage can also induce the appearance of diseases such as cancer or other pathologies, including problems that can be passed on to the offspring of the damaged individual. For instance, living organisms may be affected due to the use of medications or exposure to certain chemical, physical, or biological agents which cause cell failure. This impaired function acts as an indicator that helps identify and evaluate damage in order to avoid or minimize it. In this work, excessive doses of a cosmetic drug for topical use in dermatological treatments, known as minoxidil, produced defects in the blood of hairless mice, particularly in red cells, indicating loss of DNA, a situation that may compromise life or the offspring by causing damage to their genetic material. It is important to consider that compounds may be tissue- or species-specific, although we cannot rule out the possibility that similar damage could occur in other animal species. Thus, excessive exposure to this compound should be prevented. Abstract SKH1 hairless mice are widely used in carcinogenesis and dermatology research due to their bare skin, as exposure to different agents is facilitated. Minoxidil is a cosmetic drug that is recognized as a mitogenic agent, and mitogens are suggested to have carcinogenic and mutagenic potential by inducing cell division and increasing the possibility of perpetuating DNA damage. Therefore, we hypothesized that the application of high doses of minoxidil to the skin of hairless mice would increase the number of micronucleated erythrocytes (MNEs) in peripheral blood. The objective of this study was to evaluate the topical administration of high doses of minoxidil on peripheral blood erythrocytes of SKH1 mice by means of micronucleus assay. Minoxidil was administered on the entire body surface of mice every 12 or 24 h. Minoxidil dosing every 24 h increased the number of micronucleated polychromatic erythrocytes (MNPCEs), and dosing every 12 h increased the number of MNEs and MNPCEs, as compared to baseline and the negative control group. No decrease in polychromatic erythrocyte frequencies was observed in the minoxidil groups. Therefore, topical application of high minoxidil doses to mice can produce DNA damage, as observed through an increase in the number of MNEs, without producing cytotoxicity, possibly due to its mitogenic effect.
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11
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Zhou Q, Song Y, Zheng Q, Han R, Cheng H. Expression profile analysis of dermal papilla cells mRNA in response to WNT10B treatment. Exp Ther Med 2019; 19:1017-1023. [PMID: 32010264 PMCID: PMC6966109 DOI: 10.3892/etm.2019.8287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 10/10/2019] [Indexed: 02/07/2023] Open
Abstract
Dermal papilla cells (DPCs) are associated with the development of hair follicles (HFs) and the regulation of the hair growth cycle. Previous studies have shown that Wnt family member 10B (WNT10B) plays an important role in the proliferation and survival of DPCs in vitro, and promotes the growth of HFs. However, the underlying mechanisms have not been fully elucidated. The present study evaluated the role of WNT10B in regulating HF morphogenesis by characterizing the differential gene expression profiles between WNT10B-treated DPCs and control DPCs using RNA-sequencing (RNA-seq). A total of 1,073 and 451 genes were upregulated and downregulated, respectively. The RNA-seq data was subsequently validated by reverse-transcription quantitative PCR. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that 442 GO terms and 21 KEGG pathways were significantly enriched. Further functional analysis revealed that WNT10B decreased translation initiation, elongation and termination, and RNA metabolic processes in cultured DPCs compared with controls in vitro. Human signaling networks were compared using pathway analysis, and treatment of DPCs with WNT10B was revealed to downregulate the ribosome biogenesis pathway and decrease protein synthesis in vitro. KEGG pathway analysis showed that WNT10B upregulated the phosphoinositide 3-kinase/protein kinase B signaling pathway. The present study analyzed the expression of mRNA in WNT10B-treated DPCs using next-generation sequencing and uncovered mechanisms regulating the induction of HFs.
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Affiliation(s)
- Qiang Zhou
- Department of Dermatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Yinjing Song
- Department of Dermatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Qiaoli Zheng
- Department of Dermatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Rui Han
- Department of Dermatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
| | - Hao Cheng
- Department of Dermatology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, P.R. China
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12
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Suchonwanit P, Thammarucha S, Leerunyakul K. Minoxidil and its use in hair disorders: a review. Drug Des Devel Ther 2019; 13:2777-2786. [PMID: 31496654 PMCID: PMC6691938 DOI: 10.2147/dddt.s214907] [Citation(s) in RCA: 171] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/22/2019] [Indexed: 12/20/2022] Open
Abstract
Minoxidil was first introduced as an antihypertensive medication and the discovery of its common adverse event, hypertrichosis, led to the development of a topical formulation for promoting hair growth. To date, topical minoxidil is the mainstay treatment for androgenetic alopecia and is used as an off-label treatment for other hair loss conditions. Despite its widespread application, the exact mechanism of action of minoxidil is still not fully understood. In this article, we aim to review and update current information on the pharmacology, mechanism of action, clinical efficacy, and adverse events of topical minoxidil.
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Affiliation(s)
- Poonkiat Suchonwanit
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Sasima Thammarucha
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kanchana Leerunyakul
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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13
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Sumida T, Lincoln MR, Ukeje CM, Rodriguez DM, Akazawa H, Noda T, Naito AT, Komuro I, Dominguez-Villar M, Hafler DA. Activated β-catenin in Foxp3 + regulatory T cells links inflammatory environments to autoimmunity. Nat Immunol 2018; 19:1391-1402. [PMID: 30374130 PMCID: PMC6240373 DOI: 10.1038/s41590-018-0236-6] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 09/11/2018] [Indexed: 12/18/2022]
Abstract
Foxp3+ regulatory T cells (Treg cells) are the central component of peripheral immune tolerance. While dysregulated Treg cytokine signature has been observed in autoimmune diseases, the regulatory mechanisms underlying pro- and anti-inflammatory cytokine production are elusive. Here, we identify imbalance between IFN-γ and IL-10 as a shared Treg signature, present in patients with multiple sclerosis (MS) and under high salt conditions. RNA-sequencing analysis on human Treg subpopulations reveals β-catenin as a key regulator of IFN-γ and IL-10 expression. The activated β-catenin signature is enriched in human IFN-γ+ Treg cells, which is confirmed in vivo with Treg specific β-catenin-stabilized mice exhibiting lethal autoimmunity with a dysfunctional Treg phenotype. Moreover, we identify prostaglandin E receptor 2 (PTGER2) as a regulator for IFN-γ and IL-10 production under high salt environment, with skewed activation of the β-catenin-SGK1-Foxo axis. Our findings reveal a novel PTGER2-β-catenin loop in Treg cells linking environmental high salt conditions to autoimmunity. Further information on experimental design is available in the Nature Research Reporting Summary linked to this article.
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Affiliation(s)
- Tomokazu Sumida
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA. .,Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan.
| | - Matthew R Lincoln
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Chinonso M Ukeje
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA
| | - Donald M Rodriguez
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA.,University of Chicago, Chicago, IL, USA
| | - Hiroshi Akazawa
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Tetsuo Noda
- Department of Cell Biology, Cancer Institute, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Atsuhiko T Naito
- Department of Pharmacology, Faculty of Medicine, Toho University School of Medicine, Tokyo, Japan
| | - Issei Komuro
- Department of Cardiovascular Medicine, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Margarita Dominguez-Villar
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA.,Department of Medicine, Immunology, Imperial College London, London, UK
| | - David A Hafler
- Departments of Neurology and Immunobiology, Yale School of Medicine, New Haven, CT, USA
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14
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Kwack MH, Yang JM, Won GH, Kim MK, Kim JC, Sung YK. Establishment and characterization of five immortalized human scalp dermal papilla cell lines. Biochem Biophys Res Commun 2018; 496:346-351. [PMID: 29331373 DOI: 10.1016/j.bbrc.2018.01.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 01/09/2018] [Indexed: 12/19/2022]
Abstract
Dermal papilla (DP) regulates the growth and cycling of hair follicles. Cultured DP cells are useful for the study of their role in relation to hair growth and regeneration. However, cultivation of human DP cells is tedious and difficult. In addition, cultured DP cells possess a relatively short replicative life span, requiring immortalized human DP cell lines. We previously established an immortalized human DP cell line, SV40T-hTERT-DPC, by introducing human telomerase reverse transcriptase (hTERT) gene into the transformed cell line, SV40T-DPC. In this study, we co-transfected the simian virus 40 large T antigen (SV40T-Ag) and hTERT into DP cells from scalp hair follicles from a male with androgenetic alopecia and established five immortalized DP cell lines and named KNU-101, KNU-102, KNU-103, KNU-201 and KNU-202. We then evaluated tumorigenicity, expression of DP markers, responses to androgen, Wnt3a and BMP4, and expression of DP signature genes. These cell lines displayed early passage morphology and maintained responses to androgen, Wnt and BMP. Furthermore, these cell lines expressed DP markers and DP signature genes. KNU cell lines established in this study are potentially useful sources for hair research.
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Affiliation(s)
- Mi Hee Kwack
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Jung Min Yang
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Gong Hee Won
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Moon Kyu Kim
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Jung Chul Kim
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Young Kwan Sung
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, South Korea.
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15
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Targeting of CXXC5 by a Competing Peptide Stimulates Hair Regrowth and Wound-Induced Hair Neogenesis. J Invest Dermatol 2017; 137:2260-2269. [PMID: 28595998 DOI: 10.1016/j.jid.2017.04.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 04/02/2017] [Accepted: 04/18/2017] [Indexed: 02/02/2023]
Abstract
The Wnt/β-catenin pathway has been implicated in hair follicle development and hair regeneration in adults. We discovered that CXXC-type zinc finger protein 5 (CXXC5) is a negative regulator of the Wnt/β-catenin pathway involved in hair regrowth and wound-induced hair follicle neogenesis via an interaction with Dishevelled. CXXC5 was upregulated in miniaturized hair follicles and arrector pili muscles in human balding scalps. The inhibitory effects of CXXC5 on alkaline phosphatase activity and cell proliferation were demonstrated using human hair follicle dermal papilla cells. Moreover, CXXC5-/- mice displayed accelerated hair regrowth, and treatment with valproic acid, a glycogen synthase kinase 3β inhibitor that activates the Wnt/β-catenin pathway, further induced hair regrowth in the CXXC5-/- mice. Disrupting the CXXC5-Dishevelled interaction with a competitor peptide activated the Wnt/β-catenin pathway and accelerated hair regrowth and wound-induced hair follicle neogenesis. Overall, these findings suggest that the CXXC5-Dishevelled interaction is a potential target for the treatment of hair loss.
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16
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Zhang SS, Huang ZW, Li LX, Fu JJ, Xiao B. Identification of CD200+ colorectal cancer stem cells and their gene expression profile. Oncol Rep 2016; 36:2252-60. [DOI: 10.3892/or.2016.5039] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 08/02/2016] [Indexed: 11/06/2022] Open
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17
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Maubant S, Tesson B, Maire V, Ye M, Rigaill G, Gentien D, Cruzalegui F, Tucker GC, Roman-Roman S, Dubois T. Transcriptome analysis of Wnt3a-treated triple-negative breast cancer cells. PLoS One 2015; 10:e0122333. [PMID: 25848952 PMCID: PMC4388387 DOI: 10.1371/journal.pone.0122333] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 02/10/2015] [Indexed: 12/31/2022] Open
Abstract
The canonical Wnt/β-catenin pathway is activated in triple-negative breast cancer (TNBC). The activation of this pathway leads to the expression of specific target genes depending on the cell/tissue context. Here, we analyzed the transcriptome of two different TNBC cell lines to define a comprehensive list of Wnt target genes. The treatment of cells with Wnt3a for 6h up-regulated the expression (fold change > 1.3) of 59 genes in MDA-MB-468 cells and 241 genes in HCC38 cells. Thirty genes were common to both cell lines. Beta-catenin may also be a transcriptional repressor and we found that 18 and 166 genes were down-regulated in response to Wnt3a treatment for 6h in MDA-MB-468 and HCC38 cells, respectively, of which six were common to both cell lines. Only half of the activated and the repressed transcripts have been previously described as Wnt target genes. Therefore, our study reveals 137 novel genes that may be positively regulated by Wnt3a and 104 novel genes that may be negatively regulated by Wnt3a. These genes are involved in the Wnt pathway itself, and also in TGFβ, p53 and Hedgehog pathways. Thorough characterization of these novel potential Wnt target genes may reveal new regulators of the canonical Wnt pathway. The comparison of our list of Wnt target genes with those published in other cellular contexts confirms the notion that Wnt target genes are tissue-, cell line- and treatment-specific. Genes up-regulated in Wnt3a-stimulated cell lines were more strongly expressed in TNBC than in luminal A breast cancer samples. These genes were also overexpressed, but to a much lesser extent, in HER2+ and luminal B tumors. We identified 72 Wnt target genes higher expressed in TNBCs (17 with a fold change >1.3) which may reflect the chronic activation of the canonical Wnt pathway that occurs in TNBC tumors.
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Affiliation(s)
- Sylvie Maubant
- Breast Cancer Biology Group, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
| | - Bruno Tesson
- Breast Cancer Biology Group, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
- INSERM U900, Bioinformatics, Biostatistics, Epidemiology and Computational Systems Biology of Cancer, Institut Curie, Centre de Recherche, Paris, France
- Mines ParisTech, Fontainebleau, France
| | - Virginie Maire
- Breast Cancer Biology Group, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
| | - Mengliang Ye
- Breast Cancer Biology Group, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
| | - Guillem Rigaill
- Unité de Recherche en Génomique Végétale, INRA-CNRS-Université d'Evry Val d'Essonne, Evry, France
| | - David Gentien
- Platform of Molecular Biology Facilities, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
| | - Francisco Cruzalegui
- Institut de Recherches SERVIER, Pôle Innovation Thérapeutique Oncologie, Croissy-sur-Seine, France
| | - Gordon C. Tucker
- Institut de Recherches SERVIER, Pôle Innovation Thérapeutique Oncologie, Croissy-sur-Seine, France
| | - Sergio Roman-Roman
- Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
| | - Thierry Dubois
- Breast Cancer Biology Group, Translational Research Department, Institut Curie, Centre de Recherche, Paris, France
- * E-mail:
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18
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Geng RQ, Yuan C, Chen YL. Molecular cloning and expression analysis of prostaglandin E receptor 2 gene in cashmere goat (Capra hircus) skin during hair follicle development. Anim Biotechnol 2014; 25:98-107. [PMID: 24555795 DOI: 10.1080/10495398.2013.826236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
As a member of the four subtypes of receptors for prostaglandin E2 (PGE2), prostaglandin E receptor 2 (PTGER2) is in the family of G-protein coupled receptors and has been characterized to be involved in the development and growth of hair follicles. In this study, we cloned and characterized the full-length coding sequence (CDS) of PTGER2 gene from cashmere goat skin. The entire open reading frame (ORF) of PTGER2 gene was 1047 bp and encoded 348 amino acid residues. The deduced protein contained one G-protein coupled receptors family 1 signature, seven transmembrane domains, and other potential sites. Tissue expression analysis showed that PTGER2 gene was expressed strongly in the skin. The general expression tendency of PTGER2 gene at different hair follicle developmental stages in the skin was gradually decreased from anagen to catagen to telogen. After comparing with the expression of BMP4 gene and related reports, we further presume that it seems to have a relationship between the hair follicle cycle and the expression level of PTGER2 gene in cashmere goat skin.
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Affiliation(s)
- Rong-Qing Geng
- a College of Life Science and Technology, Yancheng Teachers University , Yancheng , Jiangsu Province , P. R. China
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19
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Nissimov JN, Das Chaudhuri AB. Hair curvature: a natural dialectic and review. Biol Rev Camb Philos Soc 2014; 89:723-66. [PMID: 24617997 DOI: 10.1111/brv.12081] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 12/18/2013] [Accepted: 01/01/2014] [Indexed: 12/19/2022]
Abstract
Although hair forms (straight, curly, wavy, etc.) are present in apparently infinite variations, each fibre can be reduced to a finite sequence of tandem segments of just three types: straight, bent/curly, or twisted. Hair forms can thus be regarded as resulting from genetic pathways that induce, reverse or modulate these basic curvature modes. However, physical interconversions between twists and curls demonstrate that strict one-to-one correspondences between them and their genetic causes do not exist. Current hair-curvature theories do not distinguish between bending and twisting mechanisms. We here introduce a multiple papillary centres (MPC) model which is particularly suitable to explain twisting. The model combines previously known features of hair cross-sectional morphology with partially/completely separated dermal papillae within single follicles, and requires such papillae to induce differential growth rates of hair cortical material in their immediate neighbourhoods. The MPC model can further help to explain other, poorly understood, aspects of hair growth and morphology. Separate bending and twisting mechanisms would be preferentially affected at the major or minor ellipsoidal sides of fibres, respectively, and together they exhaust the possibilities for influencing hair-form phenotypes. As such they suggest dialectic for hair-curvature development. We define a natural-dialectic (ND) which could take advantage of speculative aspects of dialectic, but would verify its input data and results by experimental methods. We use this as a top-down approach to first define routes by which hair bending or twisting may be brought about and then review evidence in support of such routes. In particular we consider the wingless (Wnt) and mammalian target of rapamycin (mTOR) pathways as paradigm pathways for molecular hair bending and twisting mechanisms, respectively. In addition to the Wnt canonical pathway, the Wnt/Ca(2+) and planar cell polarity (PCP) pathways, and others, can explain many alternatives and specific variations of hair bending phenotypes. Mechanisms for hair papilla budding or its division by bisection or fission can explain MPC formation. Epithelial-to-mesenchymal (EMT) and mesenchymal-to-epithelial (MET) transitions, acting in collaboration with epithelial-mesenchymal communications are also considered as mechanisms affecting hair growth and its bending and twisting. These may be treated as sub-mechanisms of an overall development from neural-crest stem cell (NCSC) lineages to differentiated hair follicle (HF) cell types, thus providing a unified framework for hair growth and development.
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20
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Kwack MH, Kim MK, Kim JC, Sung YK. Wnt5a attenuates Wnt/β-catenin signalling in human dermal papilla cells. Exp Dermatol 2013; 22:229-31. [PMID: 23489428 DOI: 10.1111/exd.12101] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/23/2013] [Indexed: 12/16/2022]
Abstract
Findings of recent studies have demonstrated modulation of Wnt/β-catenin signalling by Wnt5a, which is highly expressed in hair follicular dermal papilla (DP) in vivo. Here, we investigated the question of whether Wnt5a can affect canonical Wnt/β-catenin signalling in DP cells. Treatment with Wnt5a resulted in attenuation of Wnt3a-mediated elevation of β-catenin signalling, which was increased by Wnt5a siRNA transfection in cultured DP cells, as examined by reporter assay. In addition, treatment with Wnt5a resulted in repressed Wnt3a-mediated expression of Axin2, EP2 and LEF1 in cultured DP cells, whereas Wnt5a siRNA transfection resulted in increased Wnt3a-mediated expression of the genes in isolated DPs of cultured hair follicles. Moreover, treatment with Wnt5a resulted in attenuation of Wnt3a-mediated accumulation of β-catenin in the nucleus in DP cells. Our data strongly suggest that Wnt5a acts as an autocrine factor and attenuates canonical Wnt signalling pathway in human DP cells.
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21
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Leirós GJ, Attorresi AI, Balañá ME. Hair follicle stem cell differentiation is inhibited through cross-talk between Wnt/β-catenin and androgen signalling in dermal papilla cells from patients with androgenetic alopecia. Br J Dermatol 2012; 166:1035-42. [PMID: 22283397 DOI: 10.1111/j.1365-2133.2012.10856.x] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Hair follicle (HF) regeneration begins when signals from the mesenchyme-derived dermal papilla cells (DPC) reach multipotent epidermal stem cells in the bulge region. Wnt/β-catenin signalling is known to affect mammalian hair growth positively. In androgenetic alopecia (AGA), androgens cause HF miniaturization through a mechanism that remains unclear. Circulating androgens act on DPC and alter paracrine factors that influence hair epithelial cells. OBJECTIVES To elucidate the role of androgens in dermal papilla-induced differentiation of HF stem cells. METHODS HF stem cell differentiation was evaluated in a coculture model with DPC or culturing with media conditioned by DPC after activation of androgen and Wnt/β-catenin signalling pathways. To study the molecular cross-talk between the androgen and Wnt signalling pathway in DPC, we analysed the expression and activation of downstream Wnt signalling molecules in the presence of androgens. RESULTS In a coculture model with human DPC from patients with AGA and HF stem cells, we observed that androgens abrogate hair differentiation evaluated by hair-specific keratin 6 expression. Wnt signalling activation restored the ability of androgen-treated DPC to induce differentiation. Androgen treatment revealed a significant decrease in the cytoplasmic/total β-catenin protein ratio and upregulation of the activity of glycogen synthase kinase-3β in DPC, indicative of canonical Wnt pathway inhibition. CONCLUSIONS These results suggest that androgens deregulate DPC-secreted factors involved in normal HF stem cell differentiation via the inhibition of the canonical Wnt signalling pathway.
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Affiliation(s)
- G J Leirós
- Fundación Pablo Cassará, Instituto de Ciencia y Tecnología Dr César Milstein, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires, Argentina
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22
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Ohyama M, Kobayashi T, Sasaki T, Shimizu A, Amagai M. Restoration of the intrinsic properties of human dermal papilla in vitro. J Cell Sci 2012; 125:4114-25. [PMID: 22623722 DOI: 10.1242/jcs.105700] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The dermal papilla (DP) plays pivotal roles in hair follicle morphogenesis and cycling. However, characterization and/or propagation of human DPs have been unsatisfactory because of the lack of efficient isolation methods and the loss of innate characteristics in vitro. We hypothesized that culture conditions sustaining the intrinsic molecular signature of the human DP could facilitate expansion of functional DP cells. To test this, we first characterized the global gene expression profile of microdissected, non-cultured human DPs. We performed a 'two-step' microarray analysis to exclude the influence of unwanted contaminants in isolated DPs and successfully identified 118 human DP signature genes, including 38 genes listed in the mouse DP signature. The bioinformatics analysis of the DP gene list revealed that WNT, BMP and FGF signaling pathways were upregulated in intact DPs and addition of 6-bromoindirubin-3'-oxime, recombinant BMP2 and basic FGF to stimulate these respective signaling pathways resulted in maintained expression of in situ DP signature genes in primarily cultured human DP cells. More importantly, the exposure to these stimulants restored normally reduced DP biomarker expression in conventionally cultured DP cells. Cell growth was moderate in the newly developed culture medium. However, rapid DP cell expansion by conventional culture followed by the restoration by defined activators provided a sufficient number of DP cells that demonstrated characteristic DP activities in functional assays. The study reported here revealed previously unreported molecular mechanisms contributing to human DP properties and describes a useful technique for the investigation of human DP biology and hair follicle bioengineering.
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Affiliation(s)
- Manabu Ohyama
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
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23
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Tam SJ, Richmond DL, Kaminker JS, Modrusan Z, Martin-McNulty B, Cao TC, Weimer RM, Carano RAD, van Bruggen N, Watts RJ. Death receptors DR6 and TROY regulate brain vascular development. Dev Cell 2012; 22:403-17. [PMID: 22340501 DOI: 10.1016/j.devcel.2011.11.018] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2011] [Revised: 10/07/2011] [Accepted: 11/14/2011] [Indexed: 10/28/2022]
Abstract
Signaling events that regulate central nervous system (CNS) angiogenesis and blood-brain barrier (BBB) formation are only beginning to be elucidated. By evaluating the gene expression profile of mouse vasculature, we identified DR6/TNFRSF21 and TROY/TNFRSF19 as regulators of CNS-specific angiogenesis in both zebrafish and mice. Furthermore, these two death receptors interact both genetically and physically and are required for vascular endothelial growth factor (VEGF)-mediated JNK activation and subsequent human brain endothelial sprouting in vitro. Increasing beta-catenin levels in brain endothelium upregulate DR6 and TROY, indicating that these death receptors are downstream target genes of Wnt/beta-catenin signaling, which has been shown to be required for BBB development. These findings define a role for death receptors DR6 and TROY in CNS-specific vascular development.
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Affiliation(s)
- Stephen J Tam
- Neurodegeneration Labs, Department of Neuroscience, Genentech, 1 DNA Way, South San Francisco, CA 94080, USA
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24
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Ouji Y, Ishizaka S, Yoshikawa M. Dermal papilla cells serially cultured with Wnt-10b sustain their hair follicle induction activity after transplantation into nude mice. Cell Transplant 2012; 21:2313-24. [PMID: 22490342 DOI: 10.3727/096368912x636867] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Dermal papilla (DP) cells are associated with the development of hair follicles (HFs) and regulation of the hair cycle. However, primary DP cells prepared from cultured HFs are known to lose their ability to induce HF after culturing in standard media, for example, fibroblast growth conditions. We explored a new culture condition by which DP cells maintained their HF induction ability. The addition of Wnt-10b to the first culture of primary DP cells promoted their proliferation and maintained their Wnt responsiveness and HF induction ability. Furthermore, DP cells in Wnt-10b-containing medium sustained those characteristics after 10 passages (100 days), which encompassed the entire experimental period. These results suggest that Wnt-10b plays a pivotal role in proliferation and maintenance of DP cells in vitro.
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Affiliation(s)
- Yukiteru Ouji
- Department of Pathogen, Infection, and Immunity, Nara Medical University, Kashihara, Nara, Japan.
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25
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Shin SH, Park SY, Kim MK, Kim JC, Sung YK. Establishment and characterization of an immortalized human dermal papilla cell line. BMB Rep 2011; 44:512-6. [PMID: 21871174 DOI: 10.5483/bmbrep.2011.44.8.512] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Establishment of immortalized human dermal papilla cells (DPCs) retaining the characteristics of DPCs would be a great help for hair researchers. We recently established a simian virus 40T (SV40T)-transformed human DP cell line (SV40TDPC). However, the cell line senesced around passage 25 and ceased proliferation. In this study, we introduced the human telomerase reverse transcriptase (hTERT) gene into SV40T-DPC and established an immortalized human DP cell line. The cell line, SV40T-hTERT-DPC, did not induce tumors when inoculated into nude mice. SV40T-hTERT-DPC maintained morphology of early passage DPCs, expressed markers of DPCs, and retained responses to Wnt/β-catenin and bone morphogenic protein (BMP) signaling pathways known to be required for hair-inducing activity of DPCs. The data strongly suggest that SV40T-hTERT-DPC retains many characteristics of human DPCs in vivo without malignant transformation.
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Affiliation(s)
- Seung Hyun Shin
- Department of Immunology and Hair Research Center, School of Medicine, Kyungpook National University, Daegu, Korea
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Wnt/β-catenin pathway forms a negative feedback loop during TGF-β1 induced human normal skin fibroblast-to-myofibroblast transition. J Dermatol Sci 2011; 65:38-49. [PMID: 22041457 DOI: 10.1016/j.jdermsci.2011.09.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2011] [Revised: 07/17/2011] [Accepted: 09/30/2011] [Indexed: 01/12/2023]
Abstract
BACKGROUND Fibroblast-to-myofibroblast transition is a key event during wound healing and hypertrophic scar formation. Previous studies suggested Wnt/β-catenin signaling might be involved in the wound healing. However, its specific role in skin fibroblast-to-myofibroblast transition remains unclear. OBJECTIVE To investigate the specific role of β-catenin during the transforming growth factor-β1 induced normal skin myofibroblasts transition. METHODS By real-time quantitative polymerase chain reaction, Western-blot and immunocytochemistry, the activation of Wnt/β-catenin pathway in cultured human normal skin fibroblasts during TGF-β1 induced fibroblast-to-myofibroblast transition was investigated. The effects of β-catenin on myofibroblasts transition were also investigated when SB-216763, over-expression and siRNA of β-catenin were utilized. In addition, fibroblasts populated collagen lattices contraction assays were conducted to examine the effects of β-catenin on the contractility of the fibroblasts induced by TGF-β1. Furthermore, the effects of β-catenin on the expression of α-smooth muscle actin and collagen types I and III in hypertrophic scar derived fibroblasts were studied. RESULTS The expression of Wnts mRNA and β-catenin protein was up-regulated by TGF-β1 stimulation during the myofibroblasts transition. Both of SB-216763 and β-catenin over-expression was paralleled with decreased expression of α-smooth muscle actin, collagen types I and III, while siRNA targeting β-catenin leads to up-regulation of α-smooth muscle actin, collagen types I and III. The increased contractility and α-smooth muscle actin expression of the fibroblasts in the collagen lattices induced by TGF-β1 was inhibited by SB-216763. In addition, the expression levels of α-smooth muscle actin, collagen types I and III in hypertrophic scar derived fibroblasts were also down-regulated by SB-216763. CONCLUSION Specifically in normal skin fibroblasts, β-catenin might be involved in the myofibroblasts transition and negatively regulate the TGF-β1-induced myofibroblast transition.
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Minoxidil activates β-catenin pathway in human dermal papilla cells: a possible explanation for its anagen prolongation effect. J Dermatol Sci 2011; 62:154-9. [PMID: 21524889 DOI: 10.1016/j.jdermsci.2011.01.013] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 01/13/2011] [Accepted: 01/31/2011] [Indexed: 12/20/2022]
Abstract
BACKGROUND It is believed that the length of the actively growing phase of the anagen hair cycle mainly contributes to hair length. Recent studies showed that maintenance of β-catenin activity in the dermal papilla cells (DPCs) enables hair follicles to keep actively growing. Topical minoxidil treatment promotes hair growth in men with androgenetic alopecia, suggesting that minoxidil may prolong the actively growing phase of the anagen hair cycle. OBJECTIVE To investigate whether minoxidil prolongs the anagen hair cycle in mice and, if so, to investigate whether minoxidil activates β-catenin pathway in human DPCs. METHODS Dorsal skins of C57BL/6 mice were depilated to synchronize the hair cycle. After 10 days, 3% minoxidil were topically applied daily for 10 days. Sections of back skins were stained with hematoxylin and eosin. Hair follicles were graded and hair cycle score (HCS) was calculated. Cultured human DPCs were transiently transfected with the β-catenin responsive TCF reporter plasmid (pTopflash) and corresponding negative control reporter (pFopflash) to assess the activity of β-catenin signaling by minoxidil. Immunofluorescence staining and immunoblot were performed to examine the expression and localization of β-catenin in the presence or absence of minoxidil. Phosphorylation of GSK3β, PKA and PKB were also examined by immunoblot after minoxidil treatment. RT-PCR analysis and immunoblot were employed to investigate the expression of β-catenin pathway targets in DPCs, such as Axin2, Lef-1, and EP2. RESULTS Modest extension of anagen phase thereby delay of catagen progression was observed by application of minoxidil in mice. Minoxidil stimulated the transcriptional activity of pTopflash but not pFopflash. Nuclear accumulation of β-catenin was also observed after minoxidil treatment. Immunoblot further showed that minoxidil treatment increases the phosphorylation of GSK3β, PKA and PKB. Moreover, minoxidil induced Axin2, Lef-1, and EP2 expression. CONCLUSION Our results strongly suggest that minoxidil extends the anagen phase by activating β-catenin activity in the DPCs.
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Kim JO, Kim JY, Kwack MH, Hong SH, Kim MK, Kim JC, Sung YK. Identification of troglitazone responsive genes: induction of RTP801 during troglitazone-induced apoptosis in Hep 3B cells. BMB Rep 2010; 43:599-603. [PMID: 20846491 DOI: 10.5483/bmbrep.2010.43.9.599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Troglitazone is an anti-diabetic agent that improves hyperglycemia by reducing peripheral insulin resistance in type II diabetic patients. Troglitazone has been shown to cause growth inhibition of various normal and cancerous cells. However, the molecular mechanism by which troglitazone affects the growth of these cancer cells remains unclear. Here, we report that troglitazone treatment of Hep 3B human hepatocellular carcinoma cells resulted in dose-dependent growth inhibition. Analysis of cell cycle distribution by flow cytometry showed that the number of apoptotic cells was increased in a dose-dependent manner in response to troglitazone treatment. cDNA microarray analysis showed a number of differentially expressed genes in response to troglitazone. Among the upregulated genes, hypoxia-inducible factor 1 (HIF-1)-responsive RTP801 was induced in a dose-dependent manner. We also observed HIF-1 accumulation by immnocytochemistry after troglitazone treatment. These results strongly suggest that RTP801 might be involved in troglitazone-induced apoptosis in Hep 3B cells.
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Affiliation(s)
- Jin Oh Kim
- Department of Immunology, Kyungpook National University, Daegu, Korea
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