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Nam OH, Kim JH, Kang SW, Chae YK, Jih MK, You HH, Koh JT, Kim Y. Ginsenoside Rb1 alleviates lipopolysaccharide-induced inflammation in human dental pulp cells via the PI3K/Akt, NF-κB, and MAPK signalling pathways. Int Endod J 2024; 57:759-768. [PMID: 38436525 DOI: 10.1111/iej.14058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/05/2024]
Abstract
AIM Among numerous constituents of Panax ginseng, a constituent named Ginsenoside Rb1 (G-Rb1) has been studied to diminish inflammation associated with diseases. This study investigated the anti-inflammatory properties of G-Rb1 on human dental pulp cells (hDPCs) exposed to lipopolysaccharide (LPS) and aimed to determine the underlying molecular mechanisms. METHODOLOGY The KEGG pathway analysis was performed after RNA sequencing in G-Rb1- and LPS-treated hDPCs. Reverse-transcription polymerase chain reaction (RT-PCR) and western blot analysis were used for the assessment of cell adhesion molecules and inflammatory cytokines. Statistical analysis was performed with one-way ANOVA and the Student-Newman-Keuls test. RESULTS G-Rb1 did not exhibit any cytotoxicity within the range of concentrations tested. However, it affected the levels of TNF-α, IL-6 and IL-8, as these showed reduced levels with exposure to LPS. Additionally, less mRNA and protein expressions of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) were shown. With the presence of G-Rb1, decreased levels of PI3K/Akt, phosphorylated IκBα and p65 were also observed. Furthermore, phosphorylated ERK and JNK by LPS were diminished within 15, 30 and 60 min of G-Rb1 exposure; however, the expression of non-phosphorylated ERK and JNK remained unchanged. CONCLUSIONS G-Rb1 suppressed the LPS-induced increase of cell adhesion molecules and inflammatory cytokines, while also inhibiting PI3K/Akt, phosphorylation of NF-κB transcription factors, ERK and JNK of MAPK signalling in hDPCs.
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Affiliation(s)
- Ok Hyung Nam
- Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea
- Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Jae-Hwan Kim
- Department of Pediatric Dentistry, School of Dentistry, Jeonbuk National University, Jeonju, Korea
| | - Si Won Kang
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Yong Kwon Chae
- Department of Pediatric Dentistry, Kyung Hee University College of Dentistry, Kyung Hee Universtiy Medical Center, Seoul, Korea
| | - Myeong-Kwan Jih
- Department of Pediatric Dentistry, School of Dentistry, Chosun University, Gwangju, Korea
| | - Hyekyoung Hannah You
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
| | - Jeong-Tae Koh
- Department of Pharmacology and Dental Therapeutics, Hard-tissue Biointerface Research Center, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
| | - Young Kim
- Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Korea
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2
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McIlwraith EK, Loganathan N, Mak KWY, He W, Belsham DD. Phoenixin knockout mice show no impairment in fertility or differences in metabolic response to a high-fat diet, but exhibit behavioral differences in an open field test. J Neuroendocrinol 2024:e13398. [PMID: 38733120 DOI: 10.1111/jne.13398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/27/2024] [Accepted: 04/21/2024] [Indexed: 05/13/2024]
Abstract
Phoenixin (PNX) is a conserved secreted peptide that was identified 10 years ago with numerous studies published on its pleiotropic functions. PNX is associated with estrous cycle length, protection from a high-fat diet, and reduction of anxiety behavior. However, no study had yet evaluated the impact of deleting PNX in the whole animal. We sought to evaluate a mouse model lacking the PNX parent gene, small integral membrane protein 20 (Smim20), and the resulting effect on reproduction, energy homeostasis, and anxiety. We found that the Smim20 knockout mice had normal fertility and estrous cycle lengths. Consistent with normal fertility, the hypothalamii of the knockout mice showed no changes in the levels of reproduction-related genes, but the male mice had some changes in energy homeostasis-related genes, such as melanocortin receptor 4 (Mc4r). When placed on a high-fat diet, the wildtype and knockout mice responded similarly, but the male heterozygous mice gained slightly less weight. When placed in an open field test box, the female knockout mice traveled less distance in the outer zone, indicating alterations in anxiety or locomotor behavior. In summary, the homozygous knockout of PNX did not alter fertility and modestly alters a few neuroendocrine genes in response to a high-fat diet, especially in the female mice. However, it altered the behavior of mice in an open field test. PNX therefore may not be crucial for reproductive function or weight, however, we cannot rule out possible compensatory mechanisms in the knockout model. Understanding the role of PNX in physiology may ultimately lead to an enhanced understanding of neuroendocrine mechanisms involving this enigmatic peptide.
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Affiliation(s)
- Emma K McIlwraith
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Neruja Loganathan
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kimberly W Y Mak
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Wenyuan He
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Denise D Belsham
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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3
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Chai Y, Gu X, Zhang H, Xu X, Chen L. Phoenixin 20 ameliorates pulmonary arterial hypertension via inhibiting inflammation and oxidative stress. Aging (Albany NY) 2024; 16:5027-5037. [PMID: 38517365 PMCID: PMC11006497 DOI: 10.18632/aging.205468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 11/15/2023] [Indexed: 03/23/2024]
Abstract
Pulmonary arterial hypertension (PAH) is a severe pathophysiological syndrome resulting in heart failure, which is found to be induced by pulmonary vascular remodeling mediated by oxidative stress (OS) and inflammation. Phoenixin-20 (PNX-20) is a reproductive peptide first discovered in mice with potential suppressive properties against OS and inflammatory response. Our study will explore the possible therapeutic functions of PHN-20 against PAH for future clinical application. Rats were treated with normal saline, PHN-20 (100 ng/g body weight daily), hypoxia, hypoxia+PHN-20 (100 ng/g body weight daily), respectively. A signally elevated RVSP, mPAP, RV/LV + S, and W%, increased secretion of cytokines, enhanced malondialdehyde (MDA) level, repressed superoxide dismutase (SOD) activity, and activated NLRP3 signaling were observed in hypoxia-stimulated rats, which were notably reversed by PHN-20 administration. Pulmonary microvascular endothelial cells (PMECs) were treated with hypoxia with or without PHN-20 (10 and 20 nM). Marked elevation of inflammatory cytokine secretion, increased MDA level, repressed SOD activity, and activated NLRP3 signaling were observed in hypoxia-stimulated PMECs, accompanied by a downregulation of SIRT1. Furthermore, the repressive effect of PHN-20 on the domains-containing protein 3 (NLRP3) pathway in hypoxia-stimulated PMECs was abrogated by sirtuin1 (SIRT1) knockdown. Collectively, PHN-20 alleviated PAH via inhibiting OS and inflammation by mediating the transcriptional function of SIRT1.
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Affiliation(s)
- Yaqin Chai
- Department of Pulmonary and Critical Care Medicine, Xi’an Chest Hospital, Xi’an 710100, China
| | - Xing Gu
- Department of Pulmonary and Critical Care Medicine, Xi’an Chest Hospital, Xi’an 710100, China
| | - HongJun Zhang
- Department of Pulmonary and Critical Care Medicine, Xi’an Chest Hospital, Xi’an 710100, China
| | - Xinting Xu
- Department of Pulmonary and Critical Care Medicine, Xi’an International Medical Center Hospital, Xi’an 710100, China
| | - Lizhan Chen
- Department of Pulmonary and Critical Care Medicine, Xi’an International Medical Center Hospital, Xi’an 710100, China
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4
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Zhang J, Wang Z, Cong K, Qi J, Sun L. Phoenixin-20 ameliorates Sevoflurane inhalation-induced post-operative cognitive dysfunction in rats via activation of the PKA/CREB signaling. Aging (Albany NY) 2023; 15:14666-14676. [PMID: 38103264 PMCID: PMC10781492 DOI: 10.18632/aging.205177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/09/2023] [Indexed: 12/18/2023]
Abstract
Post-operative cognitive dysfunction (POCD) is a common complication after surgery due to the usage of anesthetics, such as Sevoflurane, which severely impacts the life quality of patients. Currently, the pathogenesis of Sevoflurane-induced POCD has not been fully elucidated but is reportedly involved with oxidative stress (OS) injury and aggravated inflammation. Phoenixin-20 (PNX-20) is a PNX peptide consisting of 20 amino acids with promising inhibitory effects on OS and inflammation. Herein, we proposed to explore the potential protective function of PNX-20 on Sevoflurane inhalation-induced POCD in rats. Sprague-Dawley (SD) rats were treated with 100 ng/g PNX-20 for 7 days with or without pre-inhalation with 2.2% Sevoflurane. Markedly increased escape latency and decreased time in the target quadrant in the Morris water maze (MWM) test, and aggravated pathological changes and apoptosis in the hippocampus tissue were observed in Sevoflurane-treated rats, which were markedly attenuated by PNX-20. Furthermore, the aggravated inflammation and OS in the hippocampus observed in Sevoflurane-treated rats were notably abolished by PNX-20. Moreover, the brain-derived neurotrophic factor (BDNF), protein kinase A (PKA), and phospho-cAMP response element binding protein/cAMP response element binding protein (p-CREB/CREB) levels were markedly decreased in Sevoflurane-treated rats, which were memorably increased by PNX-20. Our results indicated that PNX-20 ameliorated Sevoflurane inhalation-induced POCD in rats via the activation of PKA/CREB signaling, which might supply a new treatment approach for POCD.
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Affiliation(s)
- Jing Zhang
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - Zhao Wang
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - Kun Cong
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - Jun Qi
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
| | - Lining Sun
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai 264000, Shandong, China
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5
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Ballikaya E, Çelebi-Saltik B. Approaches to vital pulp therapies. AUST ENDOD J 2023; 49:735-749. [PMID: 37515353 DOI: 10.1111/aej.12772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/14/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023]
Abstract
Tooth decay, which leads to pulpal inflammation due to the pulp's response to bacterial components and byproducts is the most common infectious disease. The main goals of clinical management are to eliminate sources of infection, to facilitate healing by regulating inflammation indental tissue, and to replace lost tissues. A variety of novel approaches from tissue engineering based on stem cells, bioactive molecules, and extracellular matrix-like scaffold structures to therapeutic applications, or a combination of all these are present in the literature. Shortcomings of existing conventional materials for pulp capping and the novel approches aiming to preserve pulp vitality highligted the need for developing new targeted dental materials. This review looks at the novel approches for vital pulp treatments after briefly addresing the conventional vital pulp treatment as well as the regenerative and self defense capabilities of the pulp. A narrative review focusing on the current and future approaches for pulp preservation was performed after surveying the relevant papers on vital pulp therapies including pulp capping, pulpotomy, and potential approaches for facilitating dentin-pulp complex regeneration in PubMed, Medline, and Scopus databases.
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Affiliation(s)
- Elif Ballikaya
- Department of Oral and Dental Health Research, Hacettepe University Graduate School of Health Sciences, Ankara, Turkey
- Department of Pediatric Dentistry, Hacettepe University Faculty of Dentistry, Ankara, Turkey
| | - Betül Çelebi-Saltik
- Department of Oral and Dental Health Research, Hacettepe University Graduate School of Health Sciences, Ankara, Turkey
- Department of Stem Cell Sciences, Hacettepe University Graduate School of Health Sciences, Ankara, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
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6
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Yan J, Yao L, Tan Y, Wang Y. The protective effects of Phoenixin-20 in tumor necrosis factor α (TNF-α)-induced cell senescence of rheumatoid arthritis fibroblast-like synoviocytes (FLS). Aging (Albany NY) 2023; 15:14607-14616. [PMID: 38112587 PMCID: PMC10781454 DOI: 10.18632/aging.205024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/24/2023] [Indexed: 12/21/2023]
Abstract
Rheumatoid arthritis (RA) is an age-related joint destruction disease that markedly impacts the normal life of patients. Currently, the clinical treatment strategies are far from satisfactory with severe side effects. Cellular senescence of fibroblast-like synoviocytes (FLS) has been reported to be involved in the pathological process of arthritis, which may provide an important research direction for RA treatment. Phoenixin-20 (PNX-20) is a peptide targeting G-protein-coupled receptor 173 (GPR173) with promising anti-inflammatory properties. Our study will probe into the function of PNX-20 on tumor necrosis factor α (TNF-α)- induced rheumatoid arthritis (RA) FLS cell senescence to provide a theoretical basis for treating RA with PNX-20. RA-FLSs were handled with 10 ng/mL TNF-α, followed by introducing Phoenixin-20 (10, 20 nM) or not for 7 days. Enhanced release of inflammatory cytokines, increased proportion of senescence-associated β-galactosidase (SA-β-gal) positive cells, and declined telomerase activity were all observed in TNF-α-treated RA-FLSs, accompanied by a noticeable decline in the p21 and p53 level, which were notably reversed by 10 and 20 nM PNX-20. Furthermore, the increased signal transducer and activator of transcription 6 (STAT6) level observed in TNF-α-treated RA-FLSs were signally repressed by PNX-20. Moreover, the impact of PNX-20 on TNF-α-induced cellular senescence in RA-FLSs was abrogated by the overexpression of STAT6. Collectively, PNX-20 protected the TNF-α-induced cell senescence in RA-FLSs by downregulating STAT6. Based on these findings, we speculate that PNX-20 might be a promising agent for the treatment of RA.
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Affiliation(s)
- Jinhua Yan
- Department of Hematology and Rheumatology, The First Hospital of Nanchang, Nanchang, Jiangxi 330008, China
| | - Ling Yao
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang, Jiangxi 330008, China
| | - Ying Tan
- Department of Gerontology, The First Hospital of Nanchang, Nanchang, Jiangxi 330008, China
| | - Yue Wang
- Department of Rheumatology and Immunology, The First Hospital of Nanchang, Nanchang, Jiangxi 330008, China
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7
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Nijakowski K, Ortarzewska M, Jankowski J, Lehmann A, Surdacka A. The Role of Cellular Metabolism in Maintaining the Function of the Dentine-Pulp Complex: A Narrative Review. Metabolites 2023; 13:metabo13040520. [PMID: 37110177 PMCID: PMC10143950 DOI: 10.3390/metabo13040520] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/04/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
The cellular metabolic processes ensure the physiological integrity of the dentine-pulp complex. Odontoblasts and odontoblast-like cells are responsible for the defence mechanisms in the form of tertiary dentine formation. In turn, the main defence reaction of the pulp is the development of inflammation, during which the metabolic and signalling pathways of the cells are significantly altered. The selected dental procedures, such as orthodontic treatment, resin infiltration, resin restorations or dental bleaching, can impact the cellular metabolism in the dental pulp. Among systemic metabolic diseases, diabetes mellitus causes the most consequences for the cellular metabolism of the dentine-pulp complex. Similarly, ageing processes present a proven effect on the metabolic functioning of the odontoblasts and the pulp cells. In the literature, several potential metabolic mediators demonstrating anti-inflammatory properties on inflamed dental pulp are mentioned. Moreover, the pulp stem cells exhibit the regenerative potential essential for maintaining the function of the dentine-pulp complex.
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Affiliation(s)
- Kacper Nijakowski
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Martyna Ortarzewska
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Jakub Jankowski
- Student's Scientific Group in the Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Anna Lehmann
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
| | - Anna Surdacka
- Department of Conservative Dentistry and Endodontics, Poznan University of Medical Sciences, 60-812 Poznan, Poland
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8
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Friedrich T, Stengel A. Current state of phoenixin-the implications of the pleiotropic peptide in stress and its potential as a therapeutic target. Front Pharmacol 2023; 14:1076800. [PMID: 36860304 PMCID: PMC9968724 DOI: 10.3389/fphar.2023.1076800] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/04/2023] [Indexed: 02/15/2023] Open
Abstract
Phoenixin is a pleiotropic peptide, whose known functions have broadened significantly over the last decade. Initially first described as a reproductive peptide in 2013, phoenixin is now recognized as being implicated in hypertension, neuroinflammation, pruritus, food intake, anxiety as well as stress. Due to its wide field of involvement, an interaction with physiological as well as psychological control loops has been speculated. It has shown to be both able to actively reduce anxiety as well as being influenced by external stressors. Initial rodent models have shown that central administration of phoenixin alters the behavior of the subjects when confronted with stress-inducing situations, proposing an interaction with the perception and processing of stress and anxiety. Although the research on phoenixin is still in its infancy, there are several promising insights into its functionality, which might prove to be of value in the pharmacological treatment of several psychiatric and psychosomatic illnesses such as anorexia nervosa, post-traumatic stress disorder as well as the increasingly prevalent stress-related illnesses of burnout and depression. In this review, we aim to provide an overview of the current state of knowledge of phoenixin, its interactions with physiological processes as well as focus on the recent developments in stress response and the possible novel treatment options this might entail.
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Affiliation(s)
- T. Friedrich
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany
| | - A. Stengel
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany,Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany,*Correspondence: A. Stengel,
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9
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Ozdemir-Kumral ZN, Sen E, Yapici HB, Atakul N, Domruk OF, Aldag Y, Sen LS, Kanpalta Mustafaoğlu F, Yuksel M, Akakin D, Erzik C, Haklar G, Imeryuz N. Phoenixin 14 ameloriates pancreatic injury in streptozotocin-induced diabetic rats by alleviating oxidative burden. J Pharm Pharmacol 2022; 74:1651-1659. [PMID: 36130115 DOI: 10.1093/jpp/rgac055] [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: 03/17/2022] [Accepted: 07/04/2022] [Indexed: 02/05/2023]
Abstract
Phoenixin-14 (PNX) is a neuropeptide that has been shown to prevent oxidative damage and stimulates insulin secretion. We investigated the effects of PNX on pancreatic injury induced by streptozotocin (STZ), and nicotinamide (NAD). Male Sprague-Dawley rats, in control (C) and diabetic (STZ) groups, were treated with either saline, or PNX (0.45 nmol/kg, or 45 nmol/kg) daily for 3 days 1 week after STZ injection. Fasting blood glucose (FBG) and gastric emptying rate (GER) were measured. Tissue and blood samples were collected. PNX treatments prevented pancreatic damage and β cell loss. Increased luminol and lucigenin levels in the pancreas, ileum and liver tissues of STZ groups were alleviated by PNX treatment in pancreatic and ileal tissues. PNX0.45 decreased FBG without any change in insulin blood level and pancreatic mRNA. GER increased in all diabetic rats while PNX0.45 delayed GER only in the C group. PNX diminishes pancreatic damage and lowers FBG by reducing oxidative load.
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Affiliation(s)
| | - Eminenur Sen
- Marmara University School of Medicine, Istanbul, Turkey
| | | | | | | | - Yusra Aldag
- Marmara University School of Medicine, Istanbul, Turkey
| | - Leyla Semiha Sen
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey.,Department of General Surgery, Marmara University School of Medicine, Istanbul, Turkey
| | | | - Meral Yuksel
- Department of Medical Laboratory Technics, Marmara University Vocational School of Health Services, Istanbul, Turkey
| | - Dilek Akakin
- Department of Histology and Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Can Erzik
- Department of Medical Biology, Marmara University School of Medicine, Istanbul, Turkey
| | - Goncagul Haklar
- Department of Biochemistry, Marmara University School of Medicine, Istanbul, Turkey
| | - Neşe Imeryuz
- Department of Physiology, Marmara University School of Medicine, Istanbul, Turkey
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10
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Liang H, Zhao Q, Lv S, Ji X. Regulation and physiological functions of phoenixin. Front Mol Biosci 2022; 9:956500. [PMID: 36090042 PMCID: PMC9456248 DOI: 10.3389/fmolb.2022.956500] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 07/26/2022] [Indexed: 11/30/2022] Open
Abstract
Phoenixin is a newly discovered neuropeptide generated from small integral membrane protein 20. Phoenixin is a ligand for the G protein-coupled receptor 173 (GPR173) and has been detected in central and peripheral tissues of human, rats, mice, bovine, and zebrafish. It was initially involved in regulating reproductive function by stimulating the luteinizing hormone release from pituitary cells by increasing the level of gonadotropin-releasing hormone. Recently, many functions of phoenixin have been generalized, including regulation of food intake, memory, Alzheimer’s disease, anxiety, inflammation, neuronal and microglial activity, energy metabolism and body fluid balance, cardiovascular function, and endocrine activity. In addition, the interaction between phoenixin and nesfatin-1 have been revealed. The present article summarized the latest research progress on physiological function of phoenixin, suggesting that it is a potential target for novel drug development and clinical application.
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Affiliation(s)
- Han Liang
- The First Affiliated Hospital of Henan University, Henan University, Kaifeng, China
| | - Qian Zhao
- Institute of Molecular Medicine, Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Shuangyu Lv
- Institute of Molecular Medicine, Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, China
- *Correspondence: Shuangyu Lv, ; Xinying Ji,
| | - Xinying Ji
- Institute of Molecular Medicine, Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, China
- *Correspondence: Shuangyu Lv, ; Xinying Ji,
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11
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Breton TS, Murray CA, Huff SR, Phaneuf AM, Tripp BM, Patuel SJ, Martyniuk CJ, DiMaggio MA. Phoenixin-14 alters transcriptome and steroid profiles in female green-spotted puffer (Dichotomyctere nigroviridis). Sci Rep 2022; 12:9454. [PMID: 35676522 PMCID: PMC9177834 DOI: 10.1038/s41598-022-13695-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/26/2022] [Indexed: 02/08/2023] Open
Abstract
Phoenixin (PNX) is a highly conserved, novel hormone with diverse functions, including hypothalamic control of reproduction, appetite modulation, and regulation of energy metabolism and inflammation. While some functions appear conserved across vertebrates, additional research is required to fully characterize these complex pleiotropic effects. For instance, very little is known about transcriptome level changes associated with PNX exposure, including responses in the hypothalamic-pituitary-gonadal (HPG) axis, which is critical in vertebrate reproduction. In addition, the PNX system may be especially complex in fish, where an additional receptor is likely present in some species. The purpose of this study was to assess hypothalamic and ovarian transcriptomes after PNX-14 administration in female vitellogenic green-spotted puffer (Dichotomyctere nigroviridis). Steroid-related changes were also assessed in the liver and blood plasma. Hypothalamic responses included pro-inflammatory signals such as interleukin 1β, possibly related to gut-brain axis functions, as well as suppression of cell proliferation. Ovarian responses were more widely downregulated across all identified pathways, which may reflect progression to a less transcriptionally active state in oocytes. Both organs shared regulation in transforming growth factor-β and extracellular matrix remodeling (periostin) pathways. Reproductive processes were in general downregulated, but both inhibiting (bone morphogenetic protein 15 and follistatin) and promoting (17-hydroxyprogesterone) factors for oocyte maturation were identified. Select genes involved in reproduction (vitellogenins, estrogen receptors) in the liver were unresponsive to PNX-14 and higher doses may be needed to induce reproductive effects in D. nigroviridis. These results reinforce the complexity of PNX actions in diverse tissues and highlight important roles for this hormone in regulating the immune response, energy metabolism, and cell growth.
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Affiliation(s)
- Timothy S. Breton
- grid.266648.80000 0000 8760 9708Division of Natural Sciences, University of Maine at Farmington, Farmington, ME 04938 USA
| | - Casey A. Murray
- grid.15276.370000 0004 1936 8091Tropical Aquaculture Laboratory, Program in Fisheries and Aquatic Sciences, School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, Ruskin, FL 33570 USA
| | - Sierra R. Huff
- grid.266648.80000 0000 8760 9708Division of Natural Sciences, University of Maine at Farmington, Farmington, ME 04938 USA
| | - Anyssa M. Phaneuf
- grid.266648.80000 0000 8760 9708Division of Natural Sciences, University of Maine at Farmington, Farmington, ME 04938 USA
| | - Bethany M. Tripp
- grid.266648.80000 0000 8760 9708Division of Natural Sciences, University of Maine at Farmington, Farmington, ME 04938 USA
| | - Sarah J. Patuel
- grid.15276.370000 0004 1936 8091Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611 USA
| | - Christopher J. Martyniuk
- grid.15276.370000 0004 1936 8091Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611 USA
| | - Matthew A. DiMaggio
- grid.15276.370000 0004 1936 8091Tropical Aquaculture Laboratory, Program in Fisheries and Aquatic Sciences, School of Forest, Fisheries, and Geomatics Sciences, Institute of Food and Agricultural Sciences, University of Florida, Ruskin, FL 33570 USA
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12
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Super-conserved receptors expressed in the brain: biology and medicinal chemistry efforts. Future Med Chem 2022; 14:899-913. [PMID: 35535715 DOI: 10.4155/fmc-2022-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The super-conserved receptors expressed in the brain (SREB) constitute a family of orphan G protein-coupled receptors that include GPR27 (SREB1), GPR85 (SREB2) and GPR173 (SREB3). Their sequences are highly conserved in vertebrates, and they are almost exclusively expressed in the central nervous system. This family of receptors has attracted much attention due to their putative physiological functions and their potential as novel drug targets. The SREB family has been postulated to play important roles in a wide range of different diseases, including pancreatic β-cell insulin secretion and regulation, schizophrenia, autism and atherosclerosis. This review intends to provide a comprehensive overview of the SREB family and its recent advances in biology and medicinal chemistry.
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13
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Zeng J, He K, Mai R, Lin T, Wei R, Nong J, Wu Y. Exosomes from human umbilical cord mesenchymal stem cells and human dental pulp stem cells ameliorate lipopolysaccharide-induced inflammation in human dental pulp stem cells. Arch Oral Biol 2022; 138:105411. [DOI: 10.1016/j.archoralbio.2022.105411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/02/2022]
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14
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Role of Lipopolysaccharide, Derived from Various Bacterial Species, in Pulpitis—A Systematic Review. Biomolecules 2022; 12:biom12010138. [PMID: 35053286 PMCID: PMC8774278 DOI: 10.3390/biom12010138] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 02/06/2023] Open
Abstract
Lipopolysaccharide (LPS) is widely used for induction of inflammation in various human tissues, including dental pulp. The purpose of this study was to summarize current medical literature focusing on (1) cell types used by researchers to simulate dental pulp inflammation, (2) LPS variants utilized in experimental settings and how these choices affect the findings. Our study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). We searched for studies reporting outcomes of lipopolysaccharide application on dental pulp cells in vitro using electronic databases: MEDLINE, Web of Science and Scopus. Having gathered data from 115 papers, we aimed to present all known effects LPS has on different cell types present in dental pulp. We focused on specific receptors and particles that are involved in molecular pathways. Our review provides an essential foundation for further research using in vitro models of pulpitis.
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15
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Li JS, Su SL, Xu Z, Zhao LH, Fan RY, Guo JM, Qian DW, Duan JA. Potential roles of gut microbiota and microbial metabolites in chronic inflammatory pain and the mechanisms of therapy drugs. Ther Adv Chronic Dis 2022; 13:20406223221091177. [PMID: 35924009 PMCID: PMC9340317 DOI: 10.1177/20406223221091177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/15/2022] [Indexed: 01/21/2023] Open
Abstract
Observational findings achieved that gut microbes mediate human metabolic health
and disease risk. The types of intestinal microorganisms depend on the intake of
food and drugs and are also related to their metabolic level and genetic
factors. Recent studies have shown that chronic inflammatory pain is closely
related to intestinal microbial homeostasis. Compared with the normal intestinal
flora, the composition of intestinal flora in patients with chronic inflammatory
pain had significant changes in Actinomycetes,
Firmicutes, Bacteroidetes, etc. At the
same time, short-chain fatty acids and amino acids, the metabolites of
intestinal microorganisms, can regulate neural signal molecules and signaling
pathways, thus affecting the development trend of chronic inflammatory pain.
Glucocorticoids and non-steroidal anti-inflammatory drugs in the treatment of
chronic inflammatory pain, the main mechanism is to affect the secretion of
inflammatory factors and the abundance of intestinal bacteria. This article
reviews the relationship between intestinal microorganisms and their metabolites
on chronic inflammatory pain and the possible mechanism.
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Affiliation(s)
- Jia-Shang Li
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | | | - Zhuo Xu
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | - Li-Hui Zhao
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | - Ruo-Ying Fan
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | - Jian-Ming Guo
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | - Da-Wei Qian
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, Nanjing, P.R. China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of
Chinese Medicinal Resources Industrialization, National and Local
Collaborative Engineering Center of Chinese Medicinal Resources
Industrialization and Formulae Innovative Medicine, and Jiangsu Key
Laboratory for High Technology Research of TCM Formulae, Nanjing University
of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, P.R. China
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16
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McIlwraith EK, Zhang N, Belsham DD. The Regulation of Phoenixin: A Fascinating Multidimensional Peptide. J Endocr Soc 2021; 6:bvab192. [PMID: 35059547 PMCID: PMC8763610 DOI: 10.1210/jendso/bvab192] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Indexed: 02/07/2023] Open
Abstract
The phoenixin (PNX) peptide is linked to the control of reproduction, food intake, stress, and inflammation. However, little is known about what regulates its gene and protein expression, information that is critical to understand the physiological role of PNX. In this review, we summarize what is known about the transcriptional control of Pnx and its receptor Gpr173. A main function of PNX is as a positive regulator of the hypothalamic-pituitary-gonadal axis, but there is a lack of research on its control by reproductive hormones and peptides. PNX is also associated with food intake, and its expression is linked to feeding status, fatty acids, and glucose. It is influenced by environmental and hormonal-induced stress. The regulation of Pnx in most contexts remains an enigma, in part due to conflicting and negative results. An extensive analysis of the response of the Pnx gene to factors related to reproduction, metabolism, stress, and inflammation is required. Analysis of the Pnx promoter and epigenetic regulation must be considered to understand how this level of control contributes to its pleiotropic effects. PNX is now linked to a broad range of functions, but more research on its gene regulation is required to understand its place in overall physiology and therapeutic potential.
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Affiliation(s)
| | - Ningtong Zhang
- Department of Physiology, University of Toronto, ON, Canada
| | - Denise D Belsham
- Department of Physiology, University of Toronto, ON, Canada
- Department of Medicine, University of Toronto, ON, Canada
- Department of Obstetrics and Gynaecology, University of Toronto, ON, Canada
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17
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Fibroblast membrane-camouflaged nanoparticles for inflammation treatment in the early stage. Int J Oral Sci 2021; 13:39. [PMID: 34785637 PMCID: PMC8595357 DOI: 10.1038/s41368-021-00144-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 02/05/2023] Open
Abstract
Unrestrained inflammation is harmful to tissue repair and regeneration. Immune cell membrane-camouflaged nanoparticles have been proven to show promise as inflammation targets and multitargeted inflammation controls in the treatment of severe inflammation. Prevention and early intervention of inflammation can reduce the risk of irreversible tissue damage and loss of function, but no cell membrane-camouflaged nanotechnology has been reported to achieve stage-specific treatment in these conditions. In this study, we investigated the prophylactic and therapeutic efficacy of fibroblast membrane-camouflaged nanoparticles for topical treatment of early inflammation (early pulpitis as the model) with the help of in-depth bioinformatics and molecular biology investigations in vitro and in vivo. Nanoparticles have been proven to act as sentinels to detect and competitively neutralize invasive Escherichia coli lipopolysaccharide (E. coli LPS) with resident fibroblasts to effectively inhibit the activation of intricate signaling pathways. Moreover, nanoparticles can alleviate the secretion of multiple inflammatory cytokines to achieve multitargeted anti-inflammatory effects, attenuating inflammatory conditions in the early stage. Our work verified the feasibility of fibroblast membrane-camouflaged nanoparticles for inflammation treatment in the early stage, which widens the potential cell types for inflammation regulation.
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18
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Phoenixin-20 ameliorates gestational diabetes mellitus (GDM) symptoms and placental insults in an experimental mouse model. Int Immunopharmacol 2021; 101:108171. [PMID: 34601336 DOI: 10.1016/j.intimp.2021.108171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/20/2021] [Accepted: 09/15/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND PURPOSE Gestational diabetes mellitus (GDM) is a complication commonly observed in pregnancy, closely associated with increased oxidative stress, inflammatory response, and endoplasmic reticulum (ER) stress. Phoenixin-20 (PNX-20) is a newly reproductive hormone from the hypothalamus that has displayed pleiotropic effects. The promising inhibitory effects of PNX-20 on inflammation have recently been widely reported. The present study aims to investigate the protective effect of PNX-20 on GDM induced placental insults. METHODS A GDM model was established on C57BLKsJ db/+ mice. The expression level of GPR173 was evaluated using RT-PCR and western blotting analysis. The serum level of glucose, insulin, lipid profiles, and oxidative stress indicators were detected with commercial kits. Fetal analysis was performed to evaluate the reproductive ability. ELISA was used to detect the production of inflammatory factors. The expressions of p-eIF-2α, ATF4, and GRP78 were evaluated with western blotting assay. RESULTS Firstly, we found that GPR173 is expressed in the placenta tissue. Secondly, the elevated blood glucose level and lipid level, declined serum insulin level, fetus alive ratio, fetal and placenta weight, and shorten crown-rump length, were observed in the placenta tissue of GDM mice, which were reversed by treatment with PNX-20. Thirdly, the excessively released inflammatory factors and activated oxidative stress in GDM mice were alleviated by the administration of PNX-20. Lastly, the activated eIF-2α/ATF4 ER stress signaling pathway in GDM mice was dramatically suppressed by PNX-20. CONCLUSION Our data revealed a protective property of PNX-20 against placental insults resulted from GDM.
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19
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Diet-Induced Hypothalamic Inflammation, Phoenixin, and Subsequent Precocious Puberty. Nutrients 2021; 13:nu13103460. [PMID: 34684462 PMCID: PMC8540795 DOI: 10.3390/nu13103460] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 09/26/2021] [Accepted: 09/27/2021] [Indexed: 12/30/2022] Open
Abstract
Recent studies have shown a rise in precocious puberty, especially in girls. At the same time, childhood obesity due to overnutrition and energy imbalance is rising too. Nutrition and fertility are currently facing major challenges in our societies, and are interconnected. Studies have shown that high-fat and/or high-glycaemic-index diet can cause hypothalamic inflammation and microglial activation. Molecular and animal studies reveal that microglial activation seems to produce and activate prostaglandins, neurotrophic factors activating GnRH (gonadotropin-releasing hormone expressing neurons), thus initiating precocious puberty. GnRH neurons’ mechanisms of excitability are not well understood. In this review, we study the phenomenon of the rise of precocious puberty, we examine the physiology of GnRH neurons, and we review the recent literature regarding the pathophysiological mechanisms that connect diet-induced hypothalamic inflammation and diet-induced phoenixin regulation with precocious puberty.
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20
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Bordini EAF, Ferreira JA, Dubey N, Ribeiro JS, de Souza Costa CA, Soares DG, Bottino MC. Injectable Multifunctional Drug Delivery System for Hard Tissue Regeneration under Inflammatory Microenvironments. ACS APPLIED BIO MATERIALS 2021; 4:6993-7006. [PMID: 35006932 DOI: 10.1021/acsabm.1c00620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Engineering multifunctional hydrogel systems capable of amplifying the regenerative capacity of endogenous progenitor cells via localized presentation of therapeutics under tissue inflammation is central to the translation of effective strategies for hard tissue regeneration. Here, we loaded dexamethasone (DEX), a pleotropic drug with anti-inflammatory and mineralizing abilities, into aluminosilicate clay nanotubes (halloysite clay nanotubes (HNTs)) to engineer an injectable multifunctional drug delivery system based on photo-cross-linkable gelatin methacryloyl (GelMA) hydrogel. In detail, a series of hydrogels based on GelMA formulations containing distinct amounts of DEX-loaded nanotubes was analyzed for physicochemical and mechanical properties and kinetics of DEX release as well as compatibility with mesenchymal stem cells from human exfoliated deciduous teeth (SHEDs). The anti-inflammatory response and mineralization potential of the engineered hydrogels were determined in vitro and in vivo. DEX conjugation with HNTs was confirmed by FTIR analysis. The incorporation of DEX-loaded nanotubes enhanced the mechanical strength of GelMA with no effect on its degradation and swelling ratio. Scanning electron microscopy (SEM) images demonstrated the porous architecture of GelMA, which was not significantly altered by DEX-loaded nanotubes' (HNTs/DEX) incorporation. All GelMA formulations showed cytocompatibility with SHEDs (p < 0.05) regardless of the presence of HNTs or HNTs/DEX. However, the highest osteogenic cell differentiation was noticed with the addition of HNT/DEX 10% in GelMA formulations (p < 0.01). The controlled release of DEX over 7 days restored the expression of alkaline phosphatase and mineralization (p < 0.0001) in lipopolysaccharide (LPS)-stimulated SHEDs in vitro. Importantly, in vivo data revealed that DEX-loaded nanotube-modified GelMA (5.0% HNT/DEX 10%) led to enhanced bone formation after 6 weeks (p < 0.0001) compared to DEX-free formulations with a minimum localized inflammatory response after 7 days. Altogether, our findings show that the engineered DEX-loaded nanotube-modified hydrogel may possess great potential to trigger in situ mineralized tissue regeneration under inflammatory conditions.
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Affiliation(s)
- Ester A F Bordini
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Jessica A Ferreira
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Nileshkumar Dubey
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Juliana S Ribeiro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Carlos A de Souza Costa
- Department of Physiology and Pathology, Araraquara School of Dentistry, Universidade Estadual Paulista (UNESP), 1680 Humaitá Street, Araraquara, Sao Paulo 14801-903, Brazil
| | - Diana G Soares
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, Sao Paulo University (USP), Al. Dr. Octavio Pinheiro Brizola, 9-75, Bauru, Sao Paulo 17012-901, Brazil
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, 1011 N. University Ave., Ann Arbor, Michigan 48109, United States.,Department of Biomedical Engineering, College of Engineering, University of Michigan, Carl A. Gerstacker Building, 2200 Bonisteel Blvd., Ann Arbor, Michigan 48109, United States
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21
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Wei X, Lin H, Zhang B, Li M, Chen Y, Huang Y, Zhang J, Yang Y, Guo Z, Li W, Ye L, Lin R. Phoenixin-20 Prevents ox-LDL-Induced Attachment of Monocytes to Human Aortic Endothelial Cells (HAECs): A Protective Implication in Atherosclerosis. ACS Chem Neurosci 2021; 12:990-997. [PMID: 33683115 DOI: 10.1021/acschemneuro.0c00787] [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] [Indexed: 01/22/2023] Open
Abstract
The exact cause of atherosclerosis is not known, and therefore, the current treatment options are limited. The activation of endothelial cells by oxidized low-density lipoprotein (ox-LDL) plays a key role in the initiation and progression of atherosclerosis. Phoenixin-20 is one of the newly identified neuropeptides with pleiotropic effects in the regulation of reproduction and other biological functions. G-protein receptor-coupled 173 (GPR173) is the putative receptor of Phoenixin-20. In the present study, we show that endothelial GPR173 is repressed upon ox-LDL stimulation in human aortic endothelial cells (HAECs). We further elaborate on the hypothesis that GPR173 could be involved in the pathogenesis of atherosclerosis through a series of experiments. Our results indicate that ox-LDL remarkably triggers the increase of ROS, NOX-4, pro-inflammatory cytokines IL-1β, IL-8, and MCP-1 expression, as well as adhesion molecules ICAM-1 and VCAM-1 release. However, the agonism of GPR173 using Phoenixin-20 significantly ameliorates all of these harmful effects from ox-LDL by suppressing the NF-κB pathway. Furthermore, we show that agonism of GPR173 by Phoenixin-20 prevents the attachment of monocytes THP-1 to endothelial cells, which is an important therapeutic approach to preventing atherogenesis. In conclusion, our study demonstrates that GPR173 agonism by Phoenixin-20 plays a protective role against ox-LDL-induced endothelial dysfunction, implying that Phoenixin-20 may have therapeutic implications in atherosclerosis.
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Affiliation(s)
- Xiaolan Wei
- Department of Neurology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Huasong Lin
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Biyue Zhang
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Mimi Li
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yafang Chen
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yali Huang
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Jinying Zhang
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Yingxia Yang
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Zeming Guo
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Weiwei Li
- Department of Cardiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Lichao Ye
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
| | - Ruoting Lin
- Department of Neurology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian 362000, China
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22
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Liu H, Lin S, Ao X, Gong X, Liu C, Xu D, Huang Y, Liu Z, Zhao B, Liu X, Han X, Ye H. Meta-analysis of transcriptome datasets: An alternative method to study IL-6 regulation in coronavirus disease 2019. Comput Struct Biotechnol J 2020; 19:767-776. [PMID: 33520118 PMCID: PMC7836900 DOI: 10.1016/j.csbj.2020.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 12/08/2020] [Accepted: 12/13/2020] [Indexed: 02/07/2023] Open
Abstract
In coronavirus disease 2019 (COVID-19) patients, interleukin (IL)-6 is one of the leading factors causing death through cytokine release syndrome. Hence, identification of IL-6 downstream from clinical patients’ transcriptome is very valid for analyses of its mechanism. However, clinical study is conditional and time consuming to collect optional size of samples, as patients have the clinical heterogeneity. A possible solution is to deeply mine the relative existing data. Several transcriptome-based studies on other diseases or treatments have revealed different genes to be regulated by IL-6. Through our meta-analysis of these transcriptome datasets, 352 genes were suggested to be regulated by IL-6 in different biological conditions, some of which were related to virus infection and cardiovascular disease. Among them, 232 genes were not identified by current transcriptome studies from clinical research. ICAM1 and PFKFB3 were the most significantly upregulated genes in our meta-analysis and could be employed as biomarkers in patients with severe COVID-19. In general, a meta-analysis of transcriptome datasets could be an alternative way to analyze the immune response and complications of patients suffering from severe COVID-19 and other emergency diseases.
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Affiliation(s)
- Hui Liu
- Ganzhou Fifth People's Hospital, China
| | - Shujin Lin
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
| | - Xiulan Ao
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
| | | | | | | | | | - Zhiqiang Liu
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
| | - Bixing Zhao
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
| | - Xiaolong Liu
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
| | - Xiao Han
- College of Biological Science and Engineering, Fuzhou University, China
| | - Hanhui Ye
- Mengchao Hepatobiliary Hospital of Fujian Medical University, China
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23
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Behaviour of Human Oral Epithelial Cells Grown on Invisalign ® SmartTrack ® Material. MATERIALS 2020; 13:ma13235311. [PMID: 33255259 PMCID: PMC7727678 DOI: 10.3390/ma13235311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/13/2020] [Accepted: 11/15/2020] [Indexed: 11/18/2022]
Abstract
Invisalign aligners have been widely used to correct malocclusions, but their effect on oral cells is poorly known. Previous research evaluated the impact of aligners’ eluates on various cells, but the cell behavior in direct contact with aligners is not yet studied. In the present study, we seeded oral epithelial cells (cell line Ca9-22) directly on Invisalign SmartTrack material. This material is composed of polyurethane and co-polyester and exhibit better mechanical characteristics compared to the predecessor. Cell morphology and behavior were investigated by scanning electron microscopy and an optical cell moves analyzer. The effect of aligners on cell proliferation/viability was assessed by cell-counting kit (CCK)-8 and 3,4,5-dimethylthiazol-2-yl-2,5-diphenyl tetrazolium bromide (MTT) assay and live/dead staining. The expression of inflammatory markers and proteins involved in epithelial barrier function was measured by qPCR. Cells formed cluster-like structures on aligners. The proliferation/viability of cells growing on aligners was significantly lower (p < 0.05) compared to those growing on tissue culture plastic (TCP). Live/dead staining revealed a rare occurrence of dead cells on aligners. The gene expression level of all inflammatory markers in cells grown on aligners’ surfaces was significantly increased (p < 0.05) compared to cells grown on TCP after two days. Gene expression levels of the proteins involved in barrier function significantly increased (p < 0.05) on aligners’ surfaces after two and seven days of culture. Aligners’ material exhibits no cytotoxic effect on oral epithelial cells, but alters their behavior and the expression of proteins involved in the inflammatory response, and barrier function. The clinical relevance of these effects has still to be established.
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24
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Billert M, Rak A, Nowak KW, Skrzypski M. Phoenixin: More than Reproductive Peptide. Int J Mol Sci 2020; 21:ijms21218378. [PMID: 33171667 PMCID: PMC7664650 DOI: 10.3390/ijms21218378] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 12/11/2022] Open
Abstract
Phoenixin (PNX) neuropeptide is a cleaved product of the Smim20 protein. Its most common isoforms are the 14- and 20-amino acid peptides. The biological functions of PNX are mediated via the activation of the GPR173 receptor. PNX plays an important role in the central nervous system (CNS) and in the female reproductive system where it potentiates LH secretion and controls the estrus cycle. Moreover, it stimulates oocyte maturation and increases the number of ovulated oocytes. Nevertheless, PNX not only regulates the reproduction system but also exerts anxiolytic, anti-inflammatory, and cell-protective effects. Furthermore, it is involved in behavior, food intake, sensory perception, memory, and energy metabolism. Outside the CNS, PNX exerts its effects on the heart, ovaries, adipose tissue, and pancreatic islets. This review presents all the currently available studies demonstrating the pleiotropic effects of PNX.
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Affiliation(s)
- Maria Billert
- Department of Animal Physiology, Biochemistry and Biostructure, Poznań University of Life Sciences, 60-637 Poznań, Poland; (M.B.); (K.W.N.)
| | - Agnieszka Rak
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology and Biomedical Research, Jagiellonian University in Kraków, 30-387 Kraków, Poland;
| | - Krzysztof W. Nowak
- Department of Animal Physiology, Biochemistry and Biostructure, Poznań University of Life Sciences, 60-637 Poznań, Poland; (M.B.); (K.W.N.)
| | - Marek Skrzypski
- Department of Animal Physiology, Biochemistry and Biostructure, Poznań University of Life Sciences, 60-637 Poznań, Poland; (M.B.); (K.W.N.)
- Correspondence: ; Tel.: +48-6184-637-24
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