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Sun Q, Zhou L, Yu Z, Zhang J, Zhang C, Pi H. Human Parathyroid Hormone (1-34) accelerates skin wound healing through inducing cell migration via up-regulating the expression of Rac1. Cell Div 2024; 19:4. [PMID: 38347626 PMCID: PMC10860314 DOI: 10.1186/s13008-024-00111-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/09/2024] [Indexed: 02/15/2024] Open
Abstract
Delayed wound healing is a public issue that imposes a significant burden on both society and the patients themselves. To date, although numerous methods have been developed to accelerate the speed of wound closure, the therapeutic effects are partially limited due to the complex procedures, high costs, potential side effects, and ethical concerns. While some studies have reported that the in-vivo application of Human Parathyroid Hormone (1-34) (hPTH(1-34)) promotes the wound-healing process, the definitive role and underlying mechanisms through which it regulates the behavior of fibroblasts and keratinocytes remains unclear. Herein, hPTH(1-34)'s role in cell migration is evaluated with a series of in-vitro and in-vivo studies, whereby hPTH(1-34)'s underlying mechanism in activating the two types of cells was detected. The in-vitro study revealed that hPTH(1-34) enhanced the migration of both fibroblasts and HaCaT cells. Ras-associated C3 botulinum toxin subunit 1 (Rac1), a classical member of the Rho family, was upregulated in hPTH(1-34)-treated fibroblasts and HaCaT cells. Further study by silencing the expression of Rac1 with siRNA reversed the hPTH(1-34)-enhanced cell migration, thus confirming that Rac1 was involved in hPTH(1-34)-induced cell behavior. In-vivo study on rat wound models confirmed the effects of hPTH(1-34) on fibroblasts and keratinocytes, with increased collagen deposition, fibroblasts accumulation, and Rac1 expression in the hPTH(1-34)-treated wounds. In summary, the present study demonstrated that hPTH(1-34) accelerated wound healing through enhancing the migration of cells through the up-regulation of Rac1 expression.
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Affiliation(s)
- Qingpeng Sun
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Liya Zhou
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Zhiyong Yu
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Jun Zhang
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Chao Zhang
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China
| | - Honglin Pi
- Department of Orthopaedic, Xiangyang Hospital of Traditional Chinese Medicine, No. 24, Changzheng Road, Fancheng District, Xiangyang, 441000, Hubei Province, China.
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Zhou C, Guan D, Guo J, Niu S, Cai Z, Li C, Qin C, Yan W, Yang D. Human Parathyroid Hormone Analog (3-34/29-34) promotes wound re-epithelialization through inducing keratinocyte migration and epithelial-mesenchymal transition via PTHR1-PI3K/AKT activation. Cell Commun Signal 2023; 21:217. [PMID: 37612710 PMCID: PMC10464420 DOI: 10.1186/s12964-023-01243-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/22/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Re-epithelialization is important in the process of wound healing. Various methods have been identified to expedite the process, but their clinical application remains limited. While parathyroid hormone (PTH) has shown promising results in wound healing due to its role in promoting collagen deposition and cell migration, application is limited by its potentially inhibitive effects when being continuously and locally administrated. Herein, we developed a novel PTH analog, Human parathyroid hormone (hPTH) (3-34/29-34) (henceforth MY-1), by partially replacing and repeating the amino acid sequences of hPTH (1-34), and evaluated its effect on skin wound re-epithelialization. METHODS CCK-8, colony formation unit assay, and Ki67 immunofluorescent staining were performed to evaluate the effect of MY-1 on HaCaT cell proliferation. Then, wound scratch assay, Transwell assay and lamellipodia staining were carried out to evaluate the effect of MY-1 on cell migration. Moreover, the epithelial-mesenchymal transition (EMT) markers were measured using qPCR and western blot analysis. For in-vivo drug delivery, gelatin methacryloyl (GelMA) hydrogel was employed to load the MY-1, with the physicochemical characteristics evaluated prior to its application in wound models. Then, MY-1's role in wound healing was determined via acute skin wound models. Finally, the mechanism that MY-1 activated was also detected on HaCaT cells and in-vivo wound models. RESULTS In-vitro, MY-1 accelerated the migration and EMT of HaCaT cells, while having little effect on cell proliferation. GelMA and MY-1-incorporated GelMA hydrogels showed similar physicochemical characteristics and were used in the in-vivo studies, where the results revealed that MY-1 led to a stronger re-epithelialization by inducing basal keratinocyte migration and EMT. Further studies on in-vivo wound models and in-vitro HaCaT cells revealed that MY-1 regulated cell migration and EMT through activating PI3K/AKT signaling. The parathyroid hormone type 1 receptor (PTHR1), the main receptor of PTH, was found to be the upstream of PI3K/AKT signaling, through interfering PTHR1 expression with a small interference RNA following detection of the PI3K/AKT activation. CONCLUSION Collectively, our study demonstrated that MY-1 accelerates skin wound re-epithelialization by inducing keratinocyte migration and EMT via PTHR1-PI3K/AKT axis activation. Video Abstract.
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Affiliation(s)
- Chunhao Zhou
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Donghua Guan
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
- Department of Emergency, Zengcheng Branch of Nanfang Hospital, Southern Medical University, No. 28 Chuangxin Avenue Yongning Street, Guangzhou, 511340, P. R. China
| | - Jialiang Guo
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Shangbo Niu
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Zhihai Cai
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Chengfu Li
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Chenghe Qin
- Department of Orthopaedics, Nanfang Hospital, Division of Orthopaedic Trauma, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China
| | - Wenjuan Yan
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China.
| | - Dehong Yang
- Department of Orthopaedics, Nanfang Hospital, Division of Spine Surgery, Southern Medical University, 1838 North Guangzhou Ave, Guangzhou, 510515, P. R. China.
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Huang JH, Gao HW, Gao DD, Yang WY, Zhao MK, Shen B, Hu M. Exercise Reduces Airway Smooth Muscle Contraction in Asthmatic Rats via Inhibition of IL-4 Secretion and Store-Operated Ca 2+ Entry Pathway. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2023; 15:361-373. [PMID: 37075798 DOI: 10.4168/aair.2023.15.3.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/17/2022] [Accepted: 11/22/2022] [Indexed: 05/17/2023]
Abstract
PURPOSE Increased evidence has shown that aerobic exercise reduces airway hyperresponsiveness in asthmatic individuals. However, the underlying mechanisms of action remain elusive. This study aimed to investigate the effect of exercise on airway smooth muscle (ASM) contractile function in asthmatic rats, and uncover the possible involvement of interleukin 4 (IL-4) and the store-operated Ca2+ entry (SOCE) pathway. METHODS In this study, chicken ovalbumin was used to induce asthma in male Sprague-Dawley rats. The exercise group received moderate-intensity aerobic exercise training for 4 weeks. IL-4 concentrations in bronchoalveolar lavage fluid (BALF) samples were evaluated by enzyme linked immunosorbent assay. The contractile function of the ASM was investigated using tracheal ring tension experiments and intracellular Ca2+ imaging techniques. Western blot analysis was used to evaluate expression levels of calcium-release activated calcium (CRAC) channel protein (Orai) and stromal interaction molecule 1 (STIM1) in ASM. RESULTS Our data showed that the carbachol-stimulated, SOCE-mediated contraction of rat ASM was significantly increased in asthmatic rats, which could be abolished by exercise. Pharmacological studies revealed that GSK5498A and BTP-2, selective blockers of CRAC channels significantly inhibited SOCE-induced ASM contraction. In addition, exercise inhibited the up-regulation of IL-4 in BALF as well as STIM1 and Orai expression in the ASM of asthmatic rats. In line with these observations, we demonstrated that pretreatment of the ASM with IL-4 up-regulated the expression level of STIM1, Orai1 and Orai2, thereby promoting SOCE-mediated ASM contraction. CONCLUSIONS The data in this study reveal that aerobic exercise may improve the ASM contractile function in asthmatic rats by inhibiting IL-4 secretion and by down-regulating the expression of STIM1, Orai1 and Orai2, thus decreasing excessive SOCE-mediated ASM contraction in asthmatic rats.
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Affiliation(s)
- Jun-Hao Huang
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
- Dr. Neher's Biophysics Laboratory for Innovative Drug Discovery, State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China.
| | - Hui-Wen Gao
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China
| | - Dong-Dong Gao
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Wei-Yue Yang
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Meng-Ke Zhao
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China
| | - Bing Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, China.
| | - Min Hu
- Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Scientific Research Center, Guangzhou Sport University, Guangzhou, China.
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Nieto-Felipe J, Macias-Diaz A, Sanchez-Collado J, Berna-Erro A, Jardin I, Salido GM, Lopez JJ, Rosado JA. Role of Orai-family channels in the activation and regulation of transcriptional activity. J Cell Physiol 2023; 238:714-726. [PMID: 36952615 DOI: 10.1002/jcp.30971] [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: 12/20/2022] [Revised: 01/12/2023] [Accepted: 01/27/2023] [Indexed: 03/25/2023]
Abstract
Store operated Ca2+ entry (SOCE) is a cornerstone for the maintenance of intracellular Ca2+ homeostasis and the regulation of a variety of cellular functions. SOCE is mediated by STIM and Orai proteins following the activation of inositol 1,4,5-trisphosphate receptors. Then, a reduction of the endoplasmic reticulum intraluminal Ca2+ concentration is sensed by STIM proteins, which undergo a conformational change and activate plasma membrane Ca2+ channels comprised by Orai proteins. STIM1/Orai-mediated Ca2+ signals are finely regulated and modulate the activity of different transcription factors, including certain isoforms of the nuclear factor of activated T-cells, the cAMP-response element binding protein, the nuclear factor κ-light chain-enhancer of activated B cells, c-fos, and c-myc. These transcription factors associate SOCE with a plethora of signaling events and cellular functions. Here we provide an overview of the current knowledge about the role of Orai channels in the regulation of transcription factors through Ca2+ -dependent signaling pathways.
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Affiliation(s)
- Joel Nieto-Felipe
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Alvaro Macias-Diaz
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Jose Sanchez-Collado
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Alejandro Berna-Erro
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Isaac Jardin
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Gines M Salido
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Jose J Lopez
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
| | - Juan A Rosado
- Departamento de Fisiología, Instituto Universitario de Biomarcadores de Patologías Moleculares, Universidad de Extremadura, Caceres, Spain
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The Molecular Heterogeneity of Store-Operated Ca 2+ Entry in Vascular Endothelial Cells: The Different roles of Orai1 and TRPC1/TRPC4 Channels in the Transition from Ca 2+-Selective to Non-Selective Cation Currents. Int J Mol Sci 2023; 24:ijms24043259. [PMID: 36834672 PMCID: PMC9967124 DOI: 10.3390/ijms24043259] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Store-operated Ca2+ entry (SOCE) is activated in response to the inositol-1,4,5-trisphosphate (InsP3)-dependent depletion of the endoplasmic reticulum (ER) Ca2+ store and represents a ubiquitous mode of Ca2+ influx. In vascular endothelial cells, SOCE regulates a plethora of functions that maintain cardiovascular homeostasis, such as angiogenesis, vascular tone, vascular permeability, platelet aggregation, and monocyte adhesion. The molecular mechanisms responsible for SOCE activation in vascular endothelial cells have engendered a long-lasting controversy. Traditionally, it has been assumed that the endothelial SOCE is mediated by two distinct ion channel signalplexes, i.e., STIM1/Orai1 and STIM1/Transient Receptor Potential Canonical 1(TRPC1)/TRPC4. However, recent evidence has shown that Orai1 can assemble with TRPC1 and TRPC4 to form a non-selective cation channel with intermediate electrophysiological features. Herein, we aim at bringing order to the distinct mechanisms that mediate endothelial SOCE in the vascular tree from multiple species (e.g., human, mouse, rat, and bovine). We propose that three distinct currents can mediate SOCE in vascular endothelial cells: (1) the Ca2+-selective Ca2+-release activated Ca2+ current (ICRAC), which is mediated by STIM1 and Orai1; (2) the store-operated non-selective current (ISOC), which is mediated by STIM1, TRPC1, and TRPC4; and (3) the moderately Ca2+-selective, ICRAC-like current, which is mediated by STIM1, TRPC1, TRPC4, and Orai1.
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