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Lai J, Wang Z, Zhou H, Li P, Lu H, Tu T. Low-Intensity Nanosecond Pulsed Electric Field Accelerates Osteogenic Transformation of Human Dermal Fibroblasts by Enhancing Cell Pluripotency. Cell Reprogram 2023; 25:300-309. [PMID: 38011697 DOI: 10.1089/cell.2023.0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023] Open
Abstract
Autologous human fibroblasts have the potential to differentiate into the osteogenic lineage under specific conditions and can be utilized for bone regeneration. However, their efficiency is currently unsatisfactory. Recently, low-intensity nanosecond pulsed electric field (nsPEF) stimulation has been demonstrated to enhance cell pluripotency by activating epigenetic regulatory pathways. In this study, human dermal fibroblasts were exposed to different intensities of nsPEF to assess whether these exposures resulted in changes in proliferation rate, calcium salt deposition, and expression of differentiation-related markers in different experimental groups. The results showed a significant increase in cell proliferation, pluripotency, bone marker expression, and osteogenic differentiation efficiency when stimulating cells with 5 kV/cm of nsPEF. However, cell proliferation and differentiation significantly decreased at 25 kV/cm. Additionally, the proliferation and efficiency of osteogenic differentiation were reduced when the nsPEF intensity was increased to 50 kV/cm. Treatment with a 5 kV/cm of nsPEF led to increased and concentrated expression of Yes-Associated Protein (YAP) in the nucleus. These observations suggest that human dermal fibroblasts possess a heightened potential to differentiate into osteogenic cells when activated with nsPEF at 5 kV/cm. Consequently, the nsPEF strengthening strategy shows promise for fibroblast-based tissue-engineered bone repair research.
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Affiliation(s)
- Jingtian Lai
- Plastic & Esthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
- Department of Clinical Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Zewei Wang
- Plastic & Esthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
- Department of Clinical Medicine, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Haiying Zhou
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Pengfei Li
- Plastic & Esthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Hui Lu
- Department of Orthopedics, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Tian Tu
- Plastic & Esthetic Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
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Diao X, Yao L, Duan T, Qin J, He L, Zhang W. Melatonin promotes the development of the secondary hair follicles by regulating circMPP5. J Anim Sci Biotechnol 2023; 14:51. [PMID: 37024982 PMCID: PMC10080870 DOI: 10.1186/s40104-023-00849-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 02/05/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND The quality and yield of cashmere fibre are closely related to the differentiation and development of secondary hair follicles in the skin of cashmere goats. The higher the density of secondary hair follicles, the higher the quality and yield of cashmere from the fleece. Development of secondary hair follicles commences in the embryonic stage of life and is completed 6 months after birth. Preliminary experimental results from our laboratory showed that melatonin (MT) treatment of goat kids after their birth could increase the density of secondary hair follicles and, thus, improve the subsequent yield and quality of cashmere. These changes in the secondary hair follicles resulted from increases in levels of antioxidant and expression of anti-apoptotic protein, and from a reduction in apoptosis. The present study was conducted to explore the molecular mechanism of MT-induced secondary hair follicle differentiation and development by using whole-genome analysis. RESULTS MT had no adverse effect on the growth performance of cashmere kids but significantly improved the character of the secondary hair follicles and the quality of cashmere, and this dominant effect continued to the second year. Melatonin promotes the proliferation of secondary hair follicle cells at an early age. The formation of secondary hair follicles in the MT group was earlier than that in the control group in the second year. The genome-wide data results involved KEGG analysis of 1044 DEmRNAs, 91 DElncRNAs, 1054 DEcircRNAs, and 61 DEmiRNAs which revealed that the mitogen-activated protein kinase (MAPK) signaling pathway is involved in the development of secondary hair follicles, with key genes (FGF2, FGF21, FGFR3, MAPK3 (ERK1)) being up-regulated and expressed. We also found that the circMPP5 could sponged miR-211 and regulate the expression of MAPK3. CONCLUSIONS We conclude that MT achieves its effects by regulating the MAPK pathway through the circMPP5 sponged the miR-211, regulating the expression of MAPK3, to induce the differentiation and proliferation of secondary hair follicle cells. In addition there is up-regulation of expression of the anti-apoptotic protein causing reduced apoptosis of hair follicle cells. Collectively, these events increase the numbers of secondary hair follicles, thus improving the production of cashmere from these goats.
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Affiliation(s)
- Xiaogao Diao
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Lingyun Yao
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Tao Duan
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jiaxin Qin
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Liwen He
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Wei Zhang
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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Sheep IGFBP2 and IGFBP4 promoter methylation regulates gene expression and hair follicle development. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2022.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Cai B, Li M, Zheng Y, Yin Y, Jin F, Li X, Dong J, Jiao X, Liu X, Zhang K, Li D, Wang J, Yin G. MicroRNA-149-mediated MAPK1/ERK2 Suppression Attenuates Hair Follicle stem Cell Differentiation. Hum Gene Ther 2022; 33:625-637. [PMID: 35171714 DOI: 10.1089/hum.2021.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Hair follicle stem cells (HFSCs) are responsible for hair growth and hair follicle (HF) regeneration. microRNAs (miRNAs) have been demonstrated to be involved in the differentiation of HFSCs. Thus, present study aimed to explore the potential role of miR-149 in the differentiation of HFSCs. The isolated HFSCs were identified by flow cytometric sorting. miR-149 expression was determined during differentiation of HFSCs. Gain- and loss-of-function approaches were conducted to explore the roles of miR-149, MAPK1/ERK2, and FGF2/c-MYC in colony formation and proliferation of HFSCs. Furthermore, in vivo assays were undertaken in miR-149 knockout mice to confirm their roles in HFSC differentiation. miR-149 was found to be down-regulated during HFSC differentiation, and overexpressed miR-149 restricted the proliferation and differentiation of HFSCs. miR-149 was confirmed to target and inhibit MAPK1/ERK2, which was highly expressed in and positively associated with HFSC differentiation. The MAPK1/ERK2 promotion in HFSC differentiation was achieved by augmenting expression of FGF2 and c-MYC. The in vitro effects of miR-149 were validated in in vivo experiments. Taken together, up-regulated miR-149 restricted HFSC differentiation and hair growth by targeting MAPK1/ERK2 to reduce expression of FGF2 and c-MYC, which sheds light on the underlying molecular mechanism on hair growth.
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Affiliation(s)
- Bingjie Cai
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;
| | - Min Li
- Hunan Provincial People's Hospital, 87803, Changsha, Hunan, China;
| | - Yunpeng Zheng
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Yakun Yin
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;
| | - Fangcao Jin
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Xuyang Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Juan Dong
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Xiaoyan Jiao
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Xiaojun Liu
- Henan Province Medical Instrument Testing Institute, Zhengzhou, China;
| | - Kun Zhang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Dongqin Li
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
| | - Junmin Wang
- College of Basic Medical Sciences, Zhengzhou University, College of Basic Medical Sciences, Zhengzhou University, No. 100, Kexue Avenue, Zhengzhou 450000, Henan Province, P. R. China, Zhengzhou, China, 450000;
| | - Guangwen Yin
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China;
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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: 14] [Impact Index Per Article: 4.7] [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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Zhu Y, Wang X, Zhou X, Ding L, Liu D, Xu H. DNMT1-mediated PPARα methylation aggravates damage of retinal tissues in diabetic retinopathy mice. Biol Res 2021; 54:25. [PMID: 34362460 PMCID: PMC8348846 DOI: 10.1186/s40659-021-00347-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 07/21/2021] [Indexed: 02/06/2023] Open
Abstract
Background Peroxisome proliferator-activated receptor alpha (PPARα) is associated with diabetic retinopathy (DR), and the underlying mechanism is still unclear. Aim of this work was to investigate the mechanism of PPARα in DR. Methods Human retinal capillary pericytes (HRCPs) were treated with high glucose (HG) to induce DR cell model. DR mouse model was established by streptozotocin injection, and then received 5-Aza-2-deoxycytidine (DAC; DNA methyltransferase inhibitor) treatment. Hematoxylin–eosin staining was performed to assess retinal tissue damage. PPARα methylation was examined by Methylation-Specific PCR. Flow cytometry and DCFH-DA fluorescent probe was used to estimate apoptosis and reactive oxygen species (ROS). The interaction between DNA methyltransferase-1 (DNMT1) and PPARα promoter was examined by Chromatin Immunoprecipitation. Quantitative real-time PCR and western blot were performed to assess gene and protein expression. Results HG treatment enhanced the methylation levels of PPARα, and repressed PPARα expression in HRCPs. The levels of apoptotic cells and ROS were significantly increased in HRCPs in the presence of HG. Moreover, DNMT1 was highly expressed in HG-treated HRCPs, and DNMT1 interacted with PPARα promoter. PPARα overexpression suppressed apoptosis and ROS levels of HRCPs, which was rescued by DNMT1 up-regulation. In DR mice, DAC treatment inhibited PPARα methylation and reduced damage of retinal tissues. Conclusion DNMT1-mediated PPARα methylation promotes apoptosis and ROS levels of HRCPs and aggravates damage of retinal tissues in DR mice. Thus, this study may highlight novel insights into DR pathogenesis. Supplementary Information The online version contains supplementary material available at 10.1186/s40659-021-00347-1.
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Affiliation(s)
- Ying Zhu
- Eye Center of Xiangya Hospital, Central South University, No. 87 Xiangya Road, Hunan, 410008, Changsha, China
| | - Xinru Wang
- Eye Center of Xiangya Hospital, Central South University, No. 87 Xiangya Road, Hunan, 410008, Changsha, China
| | - Xiaoyun Zhou
- Department of Ophthalmology, The First Hospital of Changsha, 311 Yingpan Road, Hunan, Changsha, China
| | - Lexi Ding
- Eye Center of Xiangya Hospital, Central South University, No. 87 Xiangya Road, Hunan, 410008, Changsha, China
| | - Dan Liu
- Eye Center of Xiangya Hospital, Central South University, No. 87 Xiangya Road, Hunan, 410008, Changsha, China
| | - Huizhuo Xu
- Eye Center of Xiangya Hospital, Central South University, No. 87 Xiangya Road, Hunan, 410008, Changsha, China.
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