1
|
Huang L, Lin T, Shi M, Wu P. Liraglutide ameliorates inflammation and fibrosis by downregulating the TLR4/MyD88/NF-κB pathway in diabetic kidney disease. Am J Physiol Regul Integr Comp Physiol 2024; 327:R410-R422. [PMID: 39133777 DOI: 10.1152/ajpregu.00083.2024] [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: 03/29/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 09/10/2024]
Abstract
Inflammation and fibrosis play important roles in diabetic kidney disease (DKD). Previous studies have shown that glucagon-like peptide-1 receptor (GLP-1R) agonists had renal protective effects. However, the mechanisms are not clear. The present study explored the effect of liraglutide (LR), a GLP-1R agonist, on the downregulation of glomerular inflammation and fibrosis in DKD by regulating the Toll-like receptor (TLR)4/myeloid differentiation marker 88 (MyD88)/nuclear factor κB (NF-κB) signaling pathway in mesangial cells (MCs). In vitro, rat MCs were cultured in high glucose (HG). We found that liraglutide treatment significantly reduced the HG-mediated activation of the TLR4/MYD88/NF-κB signaling pathway, extracellular matrix (ECM)-related proteins, and inflammatory factors. A combination of TLR4 inhibitor (TAK242) and liraglutide did not synergistically inhibit inflammatory factors and ECM proteins. Furthermore, in the presence of TLR4 siRNA, liraglutide significantly blunted HG-induced expression of fibronectin protein and inflammatory factors. Importantly, TLR4 selective agonist LPS or TLR4 overexpression eliminated the improvement effects of liraglutide on the HG-induced response. In vivo, administration of liraglutide for 8 wk significantly improved the glomerular damage in streptozotocin-induced diabetic mice and reduced the expression of TLR4/MYD88/NF-κB signaling proteins, ECM protein, and inflammatory factors in renal cortex. TLR4-/- diabetic mice showed significant amelioration in urine protein excretion rate, glomerular pathological damage, inflammation, and fibrosis. Liraglutide attenuated glomerular hypertrophy, renal fibrosis, and inflammatory response in TLR4-/- diabetic mice. Taken together, our findings suggest that TLR4/MYD88/NF-κB signaling is involved in the regulation of inflammatory response and ECM protein proliferation in DKD. Liraglutide alleviates inflammation and fibrosis by downregulating the TLR4/MYD88/NF-κB signaling pathway in MCs.NEW & NOTEWORTHY Liraglutide, a glucagon-like peptide-1 receptor agonist (GLP-1RA), has renoprotective effect in diabetic kidney disease (DKD). In DKD, TLR4/MYD88/NF-κB signaling is involved in the regulation of inflammatory responses and extracellular matrix (ECM) protein proliferation. Liraglutide attenuates renal inflammation and overexpression of ECM proteins by inhibiting TLR4/MYD88/NF-κB signaling pathway. Therefore, we have identified a new mechanism that contributes to the renal protection of GLP-1RA, thus helping to design innovative treatment strategies for diabetic patients with various complications.
Collapse
Affiliation(s)
- Linjing Huang
- Department of Endocrinology, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Clinical Research Center for Metabolic Diseases of Fujian Province, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Diabetes Research Institute of Fujian Province, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Tingting Lin
- Department of Endocrinology, Nanping First Hospital Affiliated to Fujian Medical University, Nanping, People's Republic of China
| | - Meizhen Shi
- Department of Endocrinology, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| | - Peiwen Wu
- Department of Endocrinology, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Department of Endocrinology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Clinical Research Center for Metabolic Diseases of Fujian Province, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Fujian Key Laboratory of Glycolipid and Bone Mineral Metabolism, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
- Diabetes Research Institute of Fujian Province, the First Affiliated Hospital, Fujian Medical University, Fuzhou, People's Republic of China
| |
Collapse
|
2
|
Sun HJ, Lu QB, Zhu XX, Ni ZR, Su JB, Fu X, Chen G, Zheng GL, Nie XW, Bian JS. Pharmacology of Hydrogen Sulfide and Its Donors in Cardiometabolic Diseases. Pharmacol Rev 2024; 76:846-895. [PMID: 38866561 DOI: 10.1124/pharmrev.123.000928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/13/2024] [Accepted: 06/10/2024] [Indexed: 06/14/2024] Open
Abstract
Cardiometabolic diseases (CMDs) are major contributors to global mortality, emphasizing the critical need for novel therapeutic interventions. Hydrogen sulfide (H2S) has garnered enormous attention as a significant gasotransmitter with various physiological, pathophysiological, and pharmacological impacts within mammalian cardiometabolic systems. In addition to its roles in attenuating oxidative stress and inflammatory response, burgeoning research emphasizes the significance of H2S in regulating proteins via persulfidation, a well known modification intricately associated with the pathogenesis of CMDs. This review seeks to investigate recent updates on the physiological actions of endogenous H2S and the pharmacological roles of various H2S donors in addressing diverse aspects of CMDs across cellular, animal, and clinical studies. Of note, advanced methodologies, including multiomics, intestinal microflora analysis, organoid, and single-cell sequencing techniques, are gaining traction due to their ability to offer comprehensive insights into biomedical research. These emerging approaches hold promise in characterizing the pharmacological roles of H2S in health and diseases. We will critically assess the current literature to clarify the roles of H2S in diseases while also delineating the opportunities and challenges they present in H2S-based pharmacotherapy for CMDs. SIGNIFICANCE STATEMENT: This comprehensive review covers recent developments in H2S biology and pharmacology in cardiometabolic diseases CMDs. Endogenous H2S and its donors show great promise for the management of CMDs by regulating numerous proteins and signaling pathways. The emergence of new technologies will considerably advance the pharmacological research and clinical translation of H2S.
Collapse
Affiliation(s)
- Hai-Jian Sun
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Qing-Bo Lu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Xue-Xue Zhu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Zhang-Rong Ni
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Jia-Bao Su
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Xiao Fu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Guo Chen
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Guan-Li Zheng
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Xiao-Wei Nie
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| | - Jin-Song Bian
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China (H.-J.S., X.-X.Z., Z.-R.N., J.-B.S., X.F., G.C., G.-L.Z.); Department of Endocrinology, Affiliated Hospital of Jiangnan University, Jiangnan University, Wuxi, Jiangsu, China (Q.-B.L.); Shenzhen Key Laboratory of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen, Guangdong, China (X.-W.N.); and Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, Guangdong, China (J.-S.B.)
| |
Collapse
|
3
|
Miranda ER, Mey JT, Blackburn BK, Chaves AB, Fuller KNZ, Perkins RK, Ludlow AT, Haus JM. Soluble RAGE and skeletal muscle tissue RAGE expression profiles in lean and obese young adults across differential aerobic exercise intensities. J Appl Physiol (1985) 2023; 135:849-862. [PMID: 37675469 PMCID: PMC10642519 DOI: 10.1152/japplphysiol.00748.2022] [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: 12/12/2022] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/08/2023] Open
Abstract
Nearly 40% of Americans have obesity and are at increased risk for developing type 2 diabetes. Skeletal muscle is responsible for >80% of insulin-stimulated glucose uptake that is attenuated by the inflammatory milieu of obesity and augmented by aerobic exercise. The receptor for advanced glycation endproducts (RAGE) is an inflammatory receptor directly linking metabolic dysfunction with inflammation. Circulating soluble isoforms of RAGE (sRAGE) formed either by proteolytic cleavage (cRAGE) or alternative splicing (esRAGE) act as decoys for RAGE ligands, thereby counteracting RAGE-mediated inflammation. We aimed to determine if RAGE expression or alternative splicing of RAGE is altered by obesity in muscle, and whether acute aerobic exercise (AE) modifies RAGE and sRAGE. Young (20-34 yr) participants without [n = 17; body mass index (BMI): 22.6 ± 2.6 kg/m2] and with obesity (n = 7; BMI: 32.8 ± 2.9 kg/m2) performed acute aerobic exercise (AE) at 40%, 65%, or 80% of maximal aerobic capacity (V̇o2max; mL/kg/min) on separate visits. Blood was taken before and 30 min after each AE bout. Muscle biopsy samples were taken before, 30 min, and 3 h after the 80% V̇o2max AE bout. Individuals with obesity had higher total RAGE and esRAGE mRNA and RAGE protein (P < 0.0001). In addition, RAGE and esRAGE transcripts correlated to transcripts of the NF-κB subunit P65 (P < 0.05). There was no effect of AE on total RAGE or esRAGE transcripts, or RAGE protein (P > 0.05), and AE tended to decrease circulating sRAGE in particular at lower intensities of exercise. RAGE expression is exacerbated in skeletal muscle with obesity, which may contribute to muscle inflammation via NF-κB. Future work should investigate the consequences of increased skeletal muscle RAGE on the development of obesity-related metabolic dysfunction and potential mitigating strategies.NEW & NOTEWORTHY This study is the first to investigate the effects of aerobic exercise intensity on circulating sRAGE isoforms, muscle RAGE protein, and muscle RAGE splicing. sRAGE isoforms tended to diminish with exercise, although this effect was attenuated with increasing exercise intensity. Muscle RAGE protein and gene expression were unaffected by exercise. However, individuals with obesity displayed nearly twofold higher muscle RAGE protein and gene expression, which positively correlated with expression of the P65 subunit of NF-κB.
Collapse
Affiliation(s)
- Edwin R Miranda
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, United States
| | - Jacob T Mey
- Integrated Physiology and Molecular Metabolism, Pennington Biomedical Research Center, Baton Rouge, Louisiana, United States
| | - Brian K Blackburn
- Applied Health Sciences and Kinesiology, Humboldt State University, Arcata, California, United States
| | - Alec B Chaves
- Sarah W. Stedman Nutrition and Metabolism Center, Duke Molecular Physiology Institute, Duke University, Durham, North Carolina, United States
| | - Kelly N Z Fuller
- Division of Endocrinology, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States
| | - Ryan K Perkins
- Department of Kinesiology, California State University Chico, Chico, California, United States
| | - Andrew T Ludlow
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States
| | - Jacob M Haus
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan, United States
- Applied Health Sciences, University of Illinois at Chicago, Chicago, Illinois, United States
| |
Collapse
|
4
|
Doğan G, Karagenç N, Esmen K, Kul BÇ, Yeşilkaya H, Akgün Ş, Orman MN, Sandıkçı M, Eren Ü, Ünsal H, Karagenç L. Expression of Toll-Like Receptors in the Lung Tissue of Mouse Fetuses Generated by in vitro Embryo Culture and Embryo Transfer. Cells Tissues Organs 2023; 213:181-202. [PMID: 37105136 DOI: 10.1159/000529974] [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: 03/28/2022] [Accepted: 02/27/2023] [Indexed: 04/29/2023] Open
Abstract
Mouse fetuses generated by in vitro embryo culture and embryo transfer exhibit impaired lung development, altered composition of pulmonary epithelial cells associated with downregulation of several genes involved in lung development and toll-like receptor (TLR) signaling pathway. The aims of the present study were to determine the expression of all TLRs and to examine if the expression of TLRs, along with genes involved in TLR signaling pathway, is altered in the lung tissue of mouse fetuses generated through embryo culture and embryo transfer. Two experimental (EGs) and one control (CG) group were included in the study. Embryos cultured at 5% CO2-95% air for 95 h or less than 24 h were transferred to pseudo-pregnant females to obtain fetuses comprising EGin vitro (n = 18) and EGin vivo (n = 18), respectively. Fetuses obtained from naturally ovulating females on day 18 of pregnancy served as the CG (n = 18). Western blot and immunohistochemistry were used to determine the expression of TLR proteins. The expression of transcripts encoding TLRs, and the genes involved in TLR signaling pathway (Lbp, Pik3r1, Pik3cb, Nfkbia, and Fos), was determined using qRT-PCR. While all TLRs were expressed by cells lining the bronchial/bronchiolar epithelium of lung tissues in all groups, some of the TLRs were expressed in a specific pattern. When compared to CG, the expression of transcripts encoding TLR-2, -3, -4, -5, -7, -8, -9, -12, -13, Lbp, Pik3r1, Pik3cb, Nfkbia, and Fos was significantly downregulated in both EGs. It appears that stress imposed on embryos at preimplantation stages of development is associated with downregulation of TLRs, along with some of the genes involved in TLR signaling pathway, in the lung tissue during the perinatal period. It remains to be determined if downregulation of TLRs, along with the genes involved in TLR signaling pathway, has any functional consequences in the adult lung tissue.
Collapse
Affiliation(s)
- Göksel Doğan
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Nedim Karagenç
- Department of Medical Genetics, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Kerem Esmen
- Department of Medical, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Bengi Çınar Kul
- Department of Genetics, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Hasan Yeşilkaya
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Şakir Akgün
- Department of Medical Biology, Faculty of Medicine, Kafkas University, Kars, Turkey
| | - Mehmet Nurullah Orman
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Ege University, İzmir, Turkey
| | - Mustafa Sandıkçı
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Ülker Eren
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Hümeyra Ünsal
- Department of Physiology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| | - Levent Karagenç
- Department of Histology-Embryology, Faculty of Veterinary Medicine, Adnan Menderes University, Aydın, Turkey
| |
Collapse
|
5
|
Munteanu C, Rotariu M, Turnea M, Dogaru G, Popescu C, Spînu A, Andone I, Postoiu R, Ionescu EV, Oprea C, Albadi I, Onose G. Recent Advances in Molecular Research on Hydrogen Sulfide (H 2S) Role in Diabetes Mellitus (DM)-A Systematic Review. Int J Mol Sci 2022; 23:ijms23126720. [PMID: 35743160 PMCID: PMC9223903 DOI: 10.3390/ijms23126720] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/01/2023] Open
Abstract
Abundant experimental data suggest that hydrogen sulfide (H2S) is related to the pathophysiology of Diabetes Mellitus (DM). Multiple molecular mechanisms, including receptors, membrane ion channels, signalingmolecules, enzymes, and transcription factors, are known to be responsible for the H2S biological actions; however, H2S is not fully documented as a gaseous signaling molecule interfering with DM and vascular-linked pathology. In recent decades, multiple approaches regarding therapeutic exploitation of H2S have been identified, either based on H2S exogenous apport or on its modulated endogenous biosynthesis. This paper aims to synthesize and systematize, as comprehensively as possible, the recent literature-related data regarding the therapeutic/rehabilitative role of H2S in DM. This review was conducted following the “Preferred reporting items for systematic reviews and meta-analyses” (PRISMA) methodology, interrogating five international medically renowned databases by specific keyword combinations/“syntaxes” used contextually, over the last five years (2017–2021). The respective search/filtered and selection methodology we applied has identified, in the first step, 212 articles. After deploying the next specific quest steps, 51 unique published papers qualified for minute analysis resulted. To these bibliographic resources obtained through the PRISMA methodology, in order to have the best available information coverage, we added 86 papers that were freely found by a direct internet search. Finally, we selected for a connected meta-analysis eight relevant reports that included 1237 human subjects elicited from clinical trial registration platforms. Numerous H2S releasing/stimulating compounds have been produced, some being used in experimental models. However, very few of them were further advanced in clinical studies, indicating that the development of H2S as a therapeutic agent is still at the beginning.
Collapse
Affiliation(s)
- Constantin Munteanu
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iași, Romania; (M.R.); (M.T.)
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
- Correspondence: (C.M.); (G.O.)
| | - Mariana Rotariu
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iași, Romania; (M.R.); (M.T.)
| | - Marius Turnea
- Faculty of Medical Bioengineering, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iași, Romania; (M.R.); (M.T.)
| | - Gabriela Dogaru
- Clinical Rehabilitation Hospital, 400066 Cluj-Napoca, Romania;
- Faculty of Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, 400347 Cluj-Napoca, Romania
| | - Cristina Popescu
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
| | - Aura Spînu
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania
| | - Ioana Andone
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania
| | - Ruxandra Postoiu
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
| | - Elena Valentina Ionescu
- Faculty of Medicine, Ovidius University of Constanta, 900527 Constanta, Romania; (E.V.I.); (C.O.); (I.A.)
- Balneal and Rehabilitation Sanatorium of Techirghiol, 906100 Techirghiol, Romania
| | - Carmen Oprea
- Faculty of Medicine, Ovidius University of Constanta, 900527 Constanta, Romania; (E.V.I.); (C.O.); (I.A.)
- Balneal and Rehabilitation Sanatorium of Techirghiol, 906100 Techirghiol, Romania
| | - Irina Albadi
- Faculty of Medicine, Ovidius University of Constanta, 900527 Constanta, Romania; (E.V.I.); (C.O.); (I.A.)
- Teaching Emergency County Hospital “Sf. Apostol Andrei” Constanta, 900591 Constanta, Romania
| | - Gelu Onose
- Teaching Emergency Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania; (C.P.); (A.S.); (I.A.); (R.P.)
- Faculty of Medicine, University of Medicine and Pharmacy “Carol Davila”, 050474 Bucharest, Romania
- Correspondence: (C.M.); (G.O.)
| |
Collapse
|
6
|
Du J, Wang P, Gou Q, Jin S, Xue H, Li D, Tian D, Sun J, Zhang X, Teng X, Wu Y. Hydrogen sulfide ameliorated preeclampsia via suppression of toll-like receptor 4-activated inflammation in the rostral ventrolateral medulla of rats. Biomed Pharmacother 2022; 150:113018. [PMID: 35483194 DOI: 10.1016/j.biopha.2022.113018] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 11/18/2022] Open
Abstract
This study aims to determine whether toll-like receptor 4 (TLR4)-mediated inflammation in rostral ventrolateral medulla (RVLM) causes sympathetic overactivity leading to preeclampsia (PE) and if TLR4 inhibition with hydrogen sulfide (H2S) would reduce PE severity. Thirty patients with PE and 30 pregnant controls were involved. PE in rats was induced through deoxycorticosterone acetate and normal saline. NaHS (donor of H2S), lipopolysaccharide (LPS) (TLR4 agonist), and TAK-242 (TLR4 inhibitor) were injected in lateral cerebral ventricle to investigate their effect on microglia-mediated inflammation in RVLM, sympathetic activation, and PE symptoms. In patients with PE, plasma levels of NE, TNF-α, and interleukin-1β were high compared with those of controls, whereas levels of H2S were low. Rats with PE showed an increased amount of renal sympathetic nerve activity and plasma levels of NE, with decreased H2S levels in RVLM. Microglia-mediated inflammation was observed in the RVLM of PE rats. Central infusion of LPS in pregnant rats induced microglia-mediated inflammation, sympathetic nervous tension, and PE-like symptoms, whereas TAK-242 reduced PE symptoms. NaHS treatment lessened microglia-mediated inflammation in the RVLM, sympathetic tension, and symptoms of PE both in PE rats and LPS-treating pregnant rats.These results suggest that inflammation in the RVLM caused by microglial activation might contribute to the progression of PE via an overactive sympathetic system. H2S could reduce PE via inhibiting inflammation in the RVLM. These results might provide a new target for the treatment of PE.
Collapse
Affiliation(s)
- Jiexian Du
- Department of Physiology, Hebei Medical University, Shijiazhuang, China; Department of Gynecology and Obstetrics, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ping Wang
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Qi Gou
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Sheng Jin
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Hongmei Xue
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Desi Li
- Department of Physiology, Hebei Medical University, Shijiazhuang, China; Department of Medical, The Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Danyang Tian
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Jianping Sun
- Department of Physiology, Hebei Medical University, Shijiazhuang, China
| | - Xiangjian Zhang
- Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang, China
| | - Xu Teng
- Department of Physiology, Hebei Medical University, Shijiazhuang, China.
| | - Yuming Wu
- Department of Physiology, Hebei Medical University, Shijiazhuang, China; Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang, China.
| |
Collapse
|
7
|
Juin SK, Pushpakumar S, Sen U. GYY4137 Regulates Extracellular Matrix Turnover in the Diabetic Kidney by Modulating Retinoid X Receptor Signaling. Biomolecules 2021; 11:biom11101477. [PMID: 34680110 PMCID: PMC8533431 DOI: 10.3390/biom11101477] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/21/2021] [Accepted: 10/04/2021] [Indexed: 12/20/2022] Open
Abstract
Diabetic kidney is associated with an accumulation of extracellular matrix (ECM) leading to renal fibrosis. Dysregulation of retinoic acid metabolism involving retinoic acid receptors (RARs) and retinoid X receptors (RXRs) has been shown to play a crucial role in diabetic nephropathy (DN). Furthermore, RARs and peroxisome proliferator-activated receptor γ (PPARγ) are known to control the RXR-mediated transcriptional regulation of several target genes involved in DN. Recently, RAR and RXR have been shown to upregulate plasminogen activator inhibitor-1 (PAI-1), a major player involved in ECM accumulation and renal fibrosis during DN. Interestingly, hydrogen sulfide (H2S) has been shown to ameliorate adverse renal remodeling in DN. We investigated the role of RXR signaling in the ECM turnover in diabetic kidney, and whether H2S can mitigate ECM accumulation by modulating PPAR/RAR-mediated RXR signaling. We used wild-type (C57BL/6J), diabetic (C57BL/6-Ins2Akita/J) mice and mouse mesangial cells (MCs) as experimental models. GYY4137 was used as a H2S donor. Results showed that in diabetic kidney, the expression of PPARγ was decreased, whereas upregulations of RXRα, RXRβ, and RARγ1 expression were observed. The changes were associated with elevated PAI-1, MMP-9 and MMP-13. In addition, the expressions of collagen IV, fibronectin and laminin were increased, whereas elastin expression was decreased in the diabetic kidney. Excessive collagen deposition was observed predominantly in the peri-glomerular and glomerular regions of the diabetic kidney. Immunohistochemical localization revealed elevated expression of fibronectin and laminin in the glomeruli of the diabetic kidney. GYY4137 reversed the pathological changes. Similar results were observed in in vitro experiments. In conclusion, our data suggest that RXR signaling plays a significant role in ECM turnover, and GYY4137 modulates PPAR/RAR-mediated RXR signaling to ameliorate PAI-1-dependent adverse ECM turnover in DN.
Collapse
Affiliation(s)
| | | | - Utpal Sen
- Correspondence: ; Tel.: +1-502-852-2030; Fax: +1-502-852-6239
| |
Collapse
|
8
|
Patial V, Katoch S, Chhimwal J, Singh PP, Suresh PS, Padwad Y. Tinospora cordifolia activates PPARγ pathway and mitigates glomerular and tubular cell injury in diabetic kidney disease. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 91:153663. [PMID: 34358759 DOI: 10.1016/j.phymed.2021.153663] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/06/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Diabetic Kidney Disease (DKD) is a common complication of diabetes and a leading cause of end-stage renal disease progression. Therefore, therapeutic strategies are desirable to mitigate the progression of disease into more severe consequences. Hypothesis/Purpose:Tinospora cordifolia is a traditionally known antidiabetic plant; however, its effect against DKD remains unexplored. Therefore, in the present study, we assessed the efficacy and mechanism of action of Tinospora cordifolia extract (TC) against DKD. METHODS The molecular interaction of the various phytoconstituents of TC with PPARγ were analyzed in silico. The effect of TC was studied on the viability, cell cycle, and gene expressions (PPARγ, TGFβ, and αSMA) in high glucose treated NRK-52E and SV40 MES13 cells. Further, streptozotocin-induced diabetic rats were treated with TC for eight weeks, and the effects on different biochemical, histological and molecular parameters were studied. RESULTS In silico analysis revealed the integration of various phytoconstituents of TC with PPARγ. It further increased PPARγ and decreased TGFβ and αSMA expressions in NRK-52E and SV40 MES13 cells. In diabetic rats, TC improved the fasting blood glucose, serum urea, and creatinine levels. It also lowered the urine microalbumin and advanced glycation end products (AGEs) levels. Histopathological studies revealed the preventive effect of TC on degenerative changes, mesangial proliferation and glomerular hypertrophy. Further, it reduced the inflammation and fibrotic changes in the kidney tissue estimated by various markers. The kidney tissue and gene expression analysis revealed the augmented levels of PPARγ after TC treatment. CONCLUSION In conclusion, TC exerted the protective effect against DKD by inhibiting inflammation and fibrogenesis through the activation of PPARγ dependent pathways.
Collapse
Affiliation(s)
- Vikram Patial
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. -201002, India.
| | - Swati Katoch
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India
| | - Jyoti Chhimwal
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. -201002, India
| | - Prithvi Pal Singh
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. -201002, India
| | - Patil Shivprasad Suresh
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. -201002, India
| | - Yogendra Padwad
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur-176061, H.P., India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, U.P. -201002, India.
| |
Collapse
|
9
|
Tian J, Zhao Y, Wang L, Li L. Role of TLR4/MyD88/NF-κB signaling in heart and liver-related complications in a rat model of type 2 diabetes mellitus. J Int Med Res 2021; 49:300060521997590. [PMID: 33787393 PMCID: PMC8020098 DOI: 10.1177/0300060521997590] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Aims To analyze expression of members of the Toll-like receptor (TLR)4/myeloid
differentiation primary response 88 (MyD88)/nuclear factor (NF)-κB signaling
pathway in the heart and liver in a rat model of type 2 diabetes mellitus
(T2DM). Our overall goal was to understand the underlying pathophysiological
mechanisms. Methods We measured fasting blood glucose (FBG) and insulin (FINS) in a rat model of
T2DM. Expression of members of the TLR4/MyD88/NF-κB signaling pathway as
well as downstream cytokines was investigated. Levels of mRNA and protein
were assessed using quantitative real-time polymerase chain reaction and
western blotting, respectively. Protein content of tissue homogenates was
assessed using enzyme-linked immunosorbent assays. Results Diabetic rats had lower body weights, higher FBG, higher FINS, and higher
intraperitoneal glucose tolerance than normal rats. In addition, biochemical
indicators related to heart and liver function were elevated in diabetic
rats compared with normal rats. TLR4 and MyD88 were involved in the
occurrence of T2DM as well as T2DM-related heart and liver complications.
TLR4 caused T2DM-related heart and liver complications through activation of
NF-κB. Conclusions TLR4/MyD88/NF-κB signaling induces production of tumor necrosis factor-α,
interleukin-6, and monocyte chemoattractant protein-1, leading to the heart-
and liver-related complications of T2DM.
Collapse
Affiliation(s)
- Jiajia Tian
- Department of Endocrinology, Weifang Yidu Central Hospital, Weifang, P.R. China
| | - Yanyan Zhao
- Department of Endocrinology, Weifang Yidu Central Hospital, Weifang, P.R. China
| | - Lingling Wang
- Department of Endocrinology, Weifang Yidu Central Hospital, Weifang, P.R. China
| | - Lin Li
- The PLA Rocket Force Characteristic Medical Center, Beijing, P.R. China
| |
Collapse
|
10
|
Silencing of LncRNA PVT1 inhibits the proliferation, migration and fibrosis of high glucose-induced mouse mesangial cells via targeting microRNA-93-5p. Biosci Rep 2021; 40:222762. [PMID: 32329508 PMCID: PMC7199453 DOI: 10.1042/bsr20194427] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 12/21/2022] Open
Abstract
Objective: The present study aimed to investigate the regulatory role of long non-coding RNA plasmacytoma variant translocation 1 (PVT1) on high glucose (HG)-induced mouse mesangial cells (MMCs). Methods: PVT1 expression in diabetic nephropathy (DN) mice and HG-induced MMCs was detected by qRT-PCR. EdU and Colony formation, Annexin V-PI staining, Muse cell cycle, Scratch, and Transwell assays were performed to detect the cell proliferation, apoptosis, cell cycle, migration, and invasion, respectively. The contents of fibrosis factors in cell-culture supernatants were detected by enzyme-linked immunosorbent assay (ELISA). Western blot was performed to detect the expression of factors involved in apoptosis, cell cycle, migration and invasion, fibrosis, and PI3K/Akt/mTOR pathway. The targeting relation between miR-93-5p and PVT1 was predicted by StarBase3.0 (an online software for analyzing the targeting relationship) and identified by Dual-luciferase reporter (DLR) assay. Results: PVT1 was overexpressed in DN kidney tissues and HG-induced MMCs. HG-induced MMCs exhibited significantly increased EdU-positive cells, cell colonies, S and G2/M phase cells, migration and invasion ability, and contents of fibrosis factors, as well as significantly decreased apoptosis rate compared with NG-induced MMCs. HG significantly up-regulated Bcl-2, CyclinD1, CDK4, N-cadherin, vimentin, Col. IV, FN, TGF-β1 and PAI-1, and down-regulated Bax, cleaved caspase-3, cleaved PARP, and E-cadherin in MMCs. Silencing of PVT1 eliminated the effects of HG in MMCs and blocked PI3K/Akt/mTOR pathway. MiR-93-5p was a target of PVT1, which eliminated the effects of PVT1 on HG-induced MMCs. Conclusions: PVT1 silencing inhibited the proliferation, migration, invasion and fibrosis, promoted the apoptosis, and blocked PI3K/Akt/mTOR pathway in HG-induced MMCs via up-regulating miR-93-5p.
Collapse
|
11
|
Wang Y, Liu J, Zhang Q, Wang W, Liu Q, Liu S, Song Y, Wang X, Zhang Y, Li S, Yang X, Lv S, Liu G. Human umbilical cord mesenchymal stem cells attenuate podocyte injury under high glucose via TLR2 and TLR4 signaling. Diabetes Res Clin Pract 2021; 173:108702. [PMID: 33609619 DOI: 10.1016/j.diabres.2021.108702] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 01/07/2021] [Accepted: 02/04/2021] [Indexed: 11/26/2022]
Abstract
AIMS This research aimed to investigate the effects of high glucose (HG) on the innate immunity of podocytes and diabetic nephropathy (DN) mice via Toll like receptor (TLR) signaling, and explore the protective effectsof human umbilical cord mesenchymal stem cells (HUC-MSCs) on this process. METHODS HUC-MSCs obtained from human umbilical cord were cocultured with podocytes and transplanted into DN mice. Flow cytometry, CCK-8assay, ELISA, western blot analysis, periodicacid-schiff, masson, immunohistochemistry and immunofluorescence staining was used to detect the inflammation, TLR signaling, physical, biochemical and morphological parameters in podocytes and DN mice. RESULTS HG reduced the viability of podocytes, activated TLR2 and TLR4 signaling pathway and increased the expression of inflammatory cytokines such as IL-6, IL-1β, TNF-α, and MCP-1 in podocytes and DN mice. However, HUC-MSCs decreased the inflammation and restrained the TLR signaling pathway caused by HG in vitro and in vivo. Furthermore the rhHGF decreased the expression of TLR2 and TLR4 while the blockade of HGF increased the expression of TLR2 and TLR4 in podocytes. CONCLUSIONS HUC-MSCs have benefits to the podocytes under HG and the progression of DN by inhibiting TLR signaling pathway and depressing the inflammation. HUC-MSCs may be a therapeutic strategy for treating patients with DN.
Collapse
Affiliation(s)
- Yinghui Wang
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China; Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong 250012, China
| | - Jiaxi Liu
- Graduate School of Arts and Sciences, Columbia University, USA
| | - Qingqing Zhang
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China; Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong 250012, China
| | | | - Qingzhen Liu
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China
| | - Shanshan Liu
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China
| | - Yan Song
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China
| | - Xueling Wang
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China
| | - Yaping Zhang
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China
| | - Shan Li
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China; Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong 250012, China
| | - Xue Yang
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China; Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong 250012, China
| | - Shasha Lv
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China.
| | - Gang Liu
- Nephrology Research Institute of Shandong University, The Second Hospital of Shandong University, Shandong University, Jinan, Shandong 250033, China; Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong 250012, China.
| |
Collapse
|
12
|
Activated mesangial cells acquire the function of antigen presentation. Cell Immunol 2020; 361:104279. [PMID: 33422698 DOI: 10.1016/j.cellimm.2020.104279] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/20/2020] [Accepted: 12/28/2020] [Indexed: 12/16/2022]
Abstract
Mesangial cells (MCs), as resident cells of the kidneys, play an important role in maintaining glomerular function. MCs are located between the capillary loops of the glomeruli and mainly support the capillary plexus, constrict blood vessels, extracellular matrix components, produce cytokines, and perform phagocytosis and clearance of macromolecular substances. When the glomerular environment changes, MCs are often affected, which can lead to functional transformation. The immune response is involved in the occurrence and development of various kidney diseases, in these diseases, antigen-presenting cells (APCs) play an important role. APCs can present antigens to T lymphocytes, causing them to become activated and proliferate. Studies have shown that MCs have phagocytic function and express APC markers on the cell surface. Additionally, MCs are stimulated by or produce various inflammatory factors to participate in the renal inflammatory response. Therefore, MCs have potential antigen presentation function and participate in the pathological changes of various kidney diseases as APCs upon activation. In this paper, by reviewing MC phagocytic function, activated MC expression of APC surface markers, and MC participation in the inflammatory response and local renal immune response, we confirm that activated MCs can act as APCs in renal disease.
Collapse
|
13
|
Mao YG, Chen X, Zhang Y, Chen G. Hydrogen sulfide therapy: a narrative overview of current research and possible therapeutic implications in future. Med Gas Res 2020; 10:185-188. [PMID: 33380586 PMCID: PMC8092145 DOI: 10.4103/2045-9912.304225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 11/19/2019] [Accepted: 12/13/2019] [Indexed: 12/16/2022] Open
Abstract
Diabetic nephropathy is one of the most important comorbidities in the diabetic population. In China, more and more young patients are showing an increasing prevalence of diabetes. As a gas molecule, hydrogen sulfide (H2 S) has some unique chemical and physiological functions. In recent years, it has been studied in various fields. These effects are manifested in the induction of renal vasodilation and anti-renal vascular fibrosis. The ball clearing function is improved. Therefore, increasing prospective studies have focused on how H2 S protects diabetic nephropathy and how to obtain H2 S by modern means to treat diabetic nephropathy.
Collapse
Affiliation(s)
- Yi-Guang Mao
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xiao Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yan Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| |
Collapse
|
14
|
Zhou ZF, Jiang L, Zhao Q, Wang Y, Zhou J, Chen QK, Lv JL. Roles of pattern recognition receptors in diabetic nephropathy. J Zhejiang Univ Sci B 2020; 21:192-203. [PMID: 32133797 DOI: 10.1631/jzus.b1900490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Diabetic nephropathy (DN) is currently the most common complication of diabetes. It is considered to be one of the leading causes of end-stage renal disease (ESRD) and affects many diabetic patients. The pathogenesis of DN is extremely complex and has not yet been clarified; however, in recent years, increasing evidence has shown the important role of innate immunity in DN pathogenesis. Pattern recognition receptors (PRRs) are important components of the innate immune system and have a significant impact on the occurrence and development of DN. In this review, we classify PRRs into secretory, endocytic, and signal transduction PRRs according to the relationship between the PRRs and subcellular compartments. PRRs can recognize related pathogen-associated molecular patterns (PAMPs) and danger-associated molecular patterns (DAMPs), thus triggering a series of inflammatory responses, promoting renal fibrosis, and finally causing renal impairment. In this review, we describe the proposed role of each type of PRRs in the development and progression of DN.
Collapse
Affiliation(s)
- Zhi-Feng Zhou
- The First Clinical Medical College of Nanchang University, Nanchang 330006, China
| | - Lei Jiang
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| | - Qing Zhao
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| | - Yu Wang
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| | - Jing Zhou
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| | - Qin-Kai Chen
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| | - Jin-Lei Lv
- Department of Nephrology, the First Affiliated Hospital of Nanchang University, Institute of Molecular Immunology of Kidney Disease of Nanchang University, Nanchang 330006, China
| |
Collapse
|
15
|
Dong Z, Iqbal S, Zhao Z. Preparation of Ergosterol-Loaded Nanostructured Lipid Carriers for Enhancing Oral Bioavailability and Antidiabetic Nephropathy Effects. AAPS PharmSciTech 2020; 21:64. [PMID: 31932990 DOI: 10.1208/s12249-019-1597-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 11/29/2019] [Indexed: 02/07/2023] Open
Abstract
In our previously studies, we confirmed that ergosterol could ameliorate diabetic nephropathy by suppressing the proliferation of mesangial cells and the accumulation of extracellular matrix (ECM). However, the therapeutic application of ergosterol may be confined due to poor aqueous solubility and low oral bioavailability. We aim to prepare ergosterol-loaded nanostructured lipid carriers (ERG-NLCs) to enhance the solubility and oral bioavailability of ergosterol. ERG-NLCs were prepared using glyceryl monostearate and decanoyl/octanoyl-glycerides by hot emulsification-ultrasonication method and characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD) analysis, entrapment efficiency (EE), and drug loading (DL) capacity studies. The prepared ERG-NLCs were spherical, with particle size of 81.39 nm and negative zeta potential of 30.77 mV. Ergosterol was successfully encapsulated in NLCs with a high EE of 92.95% and a DL capacity of 6.51%. In pharmacokinetic study, Cmax and AUC0-∞ of ergosterol in ERG-NLCs were obviously enhanced, and the relative oral bioavailability of ERG-NLCs was 277.56% higher than that of raw ergosterol. Moreover, the in vitro pharmacodynamic study indicated that ERG-NLCs inhibited high-glucose-stimulated mesangial cells over proliferation and ECM accumulation more effectively compared to raw ergosterol. In conclusion, the validated ERG-NLCs showed that NLCs mediated delivery could be used as potential vehicle to enhance solubility, oral bioavailability and therapeutic efficacy of ergosterol.
Collapse
|
16
|
LNCRNA CDKN2B-AS1 regulates mesangial cell proliferation and extracellular matrix accumulation via miR-424-5p/HMGA2 axis. Biomed Pharmacother 2020; 121:109622. [PMID: 31707340 DOI: 10.1016/j.biopha.2019.109622] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 10/18/2019] [Accepted: 10/31/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Previous study has demonstrated that long noncoding RNA cyclin-dependent kinase inhibitor 2B antisense RNA 1 (CDKN2B-AS1) was abnormally expressed in diabetic nephropathy (DN). However, the underlying mechanism that allows CDKN2B-AS1 in the progression of DN remains to be further elucidated. METHODS Peripheral blood cells of 24 diabetes patients with DN and 20 without DN were collected. Human glomerular mesangial cells (HGMC) were cultured in high glucose or low glucose medium. The expression levels of CDKN2B-AS1, microRNA (miR)-424-5p and high mobility group AT hook 2 (HMGA2) were detected by quantitative real-time polymerase chain reaction or western blot. The target association between miR-424-5p and CDKN2B-AS1 or HMGA2 was confirmed by dual-luciferase reporter and RNA immunoprecipitation assays. Cell proliferation, extracellular matrix (ECM) accumulation and phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signaling were investigated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) and western blot, respectively. RESULTS CDKN2B-AS1 expression was up-regulated and miR-424-5p level was down-regulated in peripheral blood of DN patients and high glucose-treated HGMC cells. CDKN2B-AS1 was validated as a sponge of miR-424-5p. Silence of CDKN2B-AS1 repressed proliferation and ECM accumulation by increasing miR-424-5p. HMGA2 was a target of miR-424-5p and miR-424-5p overexpression inhibited proliferation, ECM accumulation and PI3K/AKT pathway by targeting HMGA2. Moreover, knockdown of CDKN2B-AS1 inhibited HMGA2 expression and PI3K/AKT pathway by increasing miR-424-5p. CONCLUSION Knockdown of CDKN2B-AS1 suppressed proliferation, ECM accumulation and PI3K/AKT signaling by increasing miR-424-5p and decreasing HMGA2 in high glucose-treated HMGC cells.
Collapse
|
17
|
Grasa L, Abecia L, Peña-Cearra A, Robles S, Layunta E, Latorre E, Mesonero JE, Forcén R. TLR2 and TLR4 interact with sulfide system in the modulation of mouse colonic motility. Neurogastroenterol Motil 2019; 31:e13648. [PMID: 31119834 DOI: 10.1111/nmo.13648] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 04/24/2019] [Accepted: 05/15/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND H2 S is a neuromodulator that may inhibit intestinal motility. H2 S production in colon is yielded by cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE) enzymes and sulfate-reducing bacteria (SRB). Toll-like receptors (TLRs) recognize intestinal microbiota. The aim of this work was to evaluate the influence of TLR2 and TLR4 on the endogenous and SRB-mediated synthesis of H2 S and its consequences on the colonic motility of mouse. METHODS Muscle contractility studies were performed in colon from WT, Tlr2-/- , and Tlr4-/- mice. The mRNA levels of TLR2, TLR4, CBS, CSE, and SRB were measured by real-time PCR. Free sulfide levels in colon and feces were determined by colorimetric assays. RESULTS NaHS and GYY4137, donors of H2 S, reduced the contractility of colon. Aminooxyacetic acid (AOAA), inhibitor of CBS, and D-L propargylglycine (PAG), inhibitor of CSE, increased the contractility of colon. In vivo treatment with NaHS or GYY4137 inhibited the spontaneous contractions and upregulated TLR2 expression. The in vivo activation of TLR4 with lipopolysaccharide increased the contractile response to PAG, mRNA levels of CSE, and the free sulfide levels of H2 S in colon. In Tlr2-/- and Tlr4-/- mice, the contractions induced by AOAA and PAG and mRNA levels of CBS and CSE were lower with respect to WT mice. Deficiency of TLR2 or TLR4 provokes alterations in free sulfide levels and SRB of colon. CONCLUSIONS AND INFERENCES Our study demonstrates interaction between TLR2 and TLR4 and the sulfide system in the regulation of colonic motility and contributes to the pathophysiology knowledge of intestinal motility disorders.
Collapse
Affiliation(s)
- Laura Grasa
- Departamento de Farmacología y Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain.,Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Zaragoza, Spain.,Instituto Agroalimentario de Aragón -IA2- (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | | | - Ainize Peña-Cearra
- CIC bioGUNE, Spain.,University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Sofia Robles
- Departamento de Farmacología y Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - Elena Layunta
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Univesity of Gothenburg, Gothenburg, Sweden
| | - Eva Latorre
- Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
| | - José Emilio Mesonero
- Departamento de Farmacología y Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain.,Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Zaragoza, Spain.,Instituto Agroalimentario de Aragón -IA2- (Universidad de Zaragoza-CITA), Zaragoza, Spain
| | - Raquel Forcén
- Departamento de Farmacología y Fisiología, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| |
Collapse
|
18
|
Sun HJ, Wu ZY, Cao L, Zhu MY, Liu TT, Guo L, Lin Y, Nie XW, Bian JS. Hydrogen Sulfide: Recent Progression and Perspectives for the Treatment of Diabetic Nephropathy. Molecules 2019; 24:molecules24152857. [PMID: 31390847 PMCID: PMC6696501 DOI: 10.3390/molecules24152857] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 02/06/2023] Open
Abstract
Diabetic kidney disease develops in approximately 40% of diabetic patients and is a major cause of chronic kidney diseases (CKD) and end stage kidney disease (ESKD) worldwide. Hydrogen sulfide (H2S), the third gasotransmitter after nitric oxide (NO) and carbon monoxide (CO), is synthesized in nearly all organs, including the kidney. Though studies on H2S regulation of renal physiology and pathophysiology are still in its infancy, emerging evidence shows that H2S production by renal cells is reduced under disease states and H2S donors ameliorate kidney injury. Specifically, aberrant H2S level is implicated in various renal pathological conditions including diabetic nephropathy. This review presents the roles of H2S in diabetic renal disease and the underlying mechanisms for the protective effects of H2S against diabetic renal damage. H2S may serve as fundamental strategies to treat diabetic kidney disease. These H2S treatment modalities include precursors for H2S synthesis, H2S donors, and natural plant-derived compounds. Despite accumulating evidence from experimental studies suggests the potential role of the H2S signaling pathway in the treatment of diabetic nephropathy, these results need further clinical translation. Expanding understanding of H2S in the kidney may be vital to translate H2S to be a novel therapy for diabetic renal disease.
Collapse
Affiliation(s)
- Hai-Jian Sun
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Zhi-Yuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Lei Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Meng-Yuan Zhu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Teng-Teng Liu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Lei Guo
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Ye Lin
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Xiao-Wei Nie
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Jin-Song Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
- National University of Singapore (Suzhou) Research Institute, Suzhou 215000, China.
| |
Collapse
|
19
|
Papu John AS, Kundu S, Pushpakumar S, Amin M, Tyagi SC, Sen U. Hydrogen sulfide inhibits Ca 2+-induced mitochondrial permeability transition pore opening in type-1 diabetes. Am J Physiol Endocrinol Metab 2019; 317:E269-E283. [PMID: 31039005 PMCID: PMC6732471 DOI: 10.1152/ajpendo.00251.2018] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 12/29/2022]
Abstract
Hydrogen sulfide (H2S) attenuates N-methyl-d-aspartate receptor-R1 (NMDA-R1) and mitigates diabetic renal damage; however, the molecular mechanism is not well known. Whereas NMDA-R1 facilitates Ca2+ permeability, H2S is known to inhibit L-type Ca2+ channel. High Ca2+ activates cyclophilin D (CypD), a gatekeeper protein of mitochondrial permeability transition pore (MPTP), thus facilitating molecular exchange between matrix and cytoplasm causing oxidative outburst and cell death. We tested the hypothesis of whether NMDA-R1 mediates Ca2+ influx causing CypD activation and MPTP opening leading to oxidative stress and renal injury in diabetes. We also tested whether H2S treatment blocks Ca2+ channel and thus inhibits CypD and MPTP opening to prevent renal damage. C57BL/6J and Akita (C57BL/6J-Ins2Akita) mice were treated without or with H2S donor GYY4137 (0.25 mg·kg-1·day-1 ip) for 8 wk. In vitro studies were performed using mouse glomerular endothelial cells. Results indicated that low levels of H2S and increased expression of NMDA-R1 in diabetes induced Ca2+ permeability, which was ameliorated by H2S treatment. We observed cytosolic Ca2+ influx in hyperglycemic (HG) condition along with mitochondrial-CypD activation, increased MPTP opening, and oxidative outburst, which were mitigated with H2S treatment. Renal injury biomarker KIM-1 was upregulated in HG conditions and normalized following H2S treatment. Inhibition of NMDA-R1 by pharmacological blocker MK-801 revealed similar results. We conclude that NMDA-R1-mediated Ca2+ influx in diabetes induces MPTP opening via CypD activation leading to increased oxidative stress and renal injury, and H2S protects diabetic kidney from injury by blocking mitochondrial Ca2+ permeability through NMDA-R1 pathway.
Collapse
Affiliation(s)
- A Sashi Papu John
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| | - Sourav Kundu
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| | - Sathnur Pushpakumar
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| | - Matthew Amin
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| | - Suresh C Tyagi
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| | - Utpal Sen
- Department of Physiology, University of Louisville School of Medicine , Louisville, Kentucky
| |
Collapse
|
20
|
Dong Z, Sun Y, Wei G, Li S, Zhao Z. Ergosterol Ameliorates Diabetic Nephropathy by Attenuating Mesangial Cell Proliferation and Extracellular Matrix Deposition via the TGF-β1/Smad2 Signaling Pathway. Nutrients 2019; 11:nu11020483. [PMID: 30823598 PMCID: PMC6412245 DOI: 10.3390/nu11020483] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/17/2019] [Accepted: 02/20/2019] [Indexed: 01/18/2023] Open
Abstract
(1) Background: Diabetic nephropathy, a microvascular complication of diabetes, is one of the principal causes of end-stage renal disease worldwide. The aim of this study was to explore the therapeutic effects of ergosterol on diabetic nephropathy. (2) Methods: Streptozotocin (STZ)-induced C57BL/6 diabetic mice were treated with ergosterol (10, 20, 40 mg/kg/day) for 8 weeks by oral gavage. The in vitro study employed rat mesangial cells exposed to 30 mM glucose for 48 h in the presence of 10 or 20 μM ergosterol. (3) Results: Ergosterol treatment improved body weights, ameliorated the majority of biochemical and renal functional parameters and histopathological changes, and reduced extracellular matrix (ECM) deposition in diabetic mice. In vitro, ergosterol suppressed proliferation, reduced the levels of ECM proteins, and increased the expression of matrix metalloproteinase-2 and -9 in high glucose-induced mesangial cells; Furthermore, ergosterol markedly improved transforming growth factor-β1 (TGF-β1) expression, enhanced phosphorylation levels of drosophila mothers against decapentaplegic 2 (Smad2), and regulated the downstream factors in vivo and in vitro. (4) Conclusions: Ergosterol alleviated mesangial cell proliferation and the subsequent ECM deposition by regulating the TGF-β1/Smad2 signaling pathway.
Collapse
Affiliation(s)
- Zhonghua Dong
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong, China.
| | - Yueyue Sun
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong, China.
| | - Guangwei Wei
- School of Basic Medical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong, China.
| | - Siying Li
- School of Basic Medical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong, China.
| | - Zhongxi Zhao
- School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, Shandong, China.
- Shandong Engineering & Technology Research Center for Jujube Food and Drug, 44 West Wenhua Road, Jinan 250012, Shandong, China.
| |
Collapse
|
21
|
Kramer B, França LM, Zhang Y, Paes AMDA, Gerdes AM, Carrillo-Sepulveda MA. Western diet triggers Toll-like receptor 4 signaling-induced endothelial dysfunction in female Wistar rats. Am J Physiol Heart Circ Physiol 2018; 315:H1735-H1747. [PMID: 30265151 DOI: 10.1152/ajpheart.00218.2018] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Overconsumption of a diet rich in fat and carbohydrates, called the Western diet, is a major contributor to the global epidemic of cardiovascular disease. Despite previously documented cardiovascular protection exhibited in female rats, this safeguard may be lost under certain metabolic stressors. We hypothesized that female Wistar rats challenged by a Western diet composed of 21% fat and 50% carbohydrate (34.1% sucrose) for 17 wk would develop endothelial dysfunction via endothelial Toll-like receptor 4 (TLR4) signaling. Western diet-fed female rats exhibited dysregulation of metabolism, revealing increased body weight and abdominal fat, decreased expression of adiponectin in white adipose tissue, glucose intolerance, and impaired insulin sensitivity. Western diet exposure increased hepatic triglycerides and cholesterol alongside hepatic steatosis, categorizing nonalcoholic fatty liver disease. Moreover, a Western diet negatively affected vascular function, revealing hypertension, impaired endothelium-dependent vasorelaxation, aortic remodeling, and increased reactive oxygen species (ROS) production. Aortic protein expression of TLR4 and its downstream proteins were markedly increased in the Western diet-fed group in association with elevated serum levels of free fatty acids. In vitro experiments were conducted to test whether free fatty acids contribute to vascular ROS overproduction via the TLR4 signaling pathway. Cultured endothelial cells were stimulated with palmitate in the presence of TAK-242, a TLR4 signaling inhibitor. Palmitate-induced overgeneration of ROS in endothelial cells was abolished in the presence of TAK-242. Our data show that a Western diet induced endothelial dysfunction in female rats and suggest that endothelial TLR4 signaling may play a key role in abolishing female cardiovascular protection. NEW & NOTEWORTHY A Western diet induced elevated levels of free fatty acids, produced nonalcoholic fatty liver disease, and provoked endothelial dysfunction in female rats in association with Toll-like receptor 4 signaling-mediated vascular reactive oxygen species production. Limited consumption of a Western diet in premenopausal women may decrease their risk of cardiovascular complications.
Collapse
Affiliation(s)
- Benjamin Kramer
- Department of Biomedical Sciences, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, New York
| | - Lucas Martins França
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão , Sao Luis , Brazil
| | - Youhua Zhang
- Department of Biomedical Sciences, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, New York
| | - Antonio Marcus de Andrade Paes
- Laboratory of Experimental Physiology, Department of Physiological Sciences, Federal University of Maranhão , Sao Luis , Brazil
| | - A Martin Gerdes
- Department of Biomedical Sciences, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, New York
| | - Maria Alicia Carrillo-Sepulveda
- Department of Biomedical Sciences, College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, New York
| |
Collapse
|
22
|
Hu TX, Wang G, Wu W, Gao L, Tan QY, Wang J. Hydrogen Sulfide Inhibits High Glucose-Induced sFlt-1 Production via Decreasing ADAM17 Expression in 3T3-L1 Adipocytes. Int J Endocrinol 2017; 2017:9501792. [PMID: 28740508 PMCID: PMC5504937 DOI: 10.1155/2017/9501792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/22/2017] [Accepted: 05/21/2017] [Indexed: 11/18/2022] Open
Abstract
Hydrogen sulfide (H2S) has recently been identified as an endogenous gaseous signaling molecule. The aim of the present study was to investigate the effect of H2S on high glucose- (HG-) induced ADAM17 expression and sFlt-1 production in 3T3-L1 adipocytes. Firstly, we found that HG DMEM upregulated the expression of ADAM17 and production of sFlt-1 in 3T3-L1 adipocytes. Knocking down ADAM17 attenuated the effect of high glucose on sFlt-1 production in adipocytes. HG decreased the expression of CSE and 3-MST, as well as the endogenous H2S production. Furthermore, knocking down CSE and 3-MST significantly increased ADAM17 expression and sFlt-1 production. The addition of exogenous H2S through the administration of sodium hydrosulfide (NaHS) inhibited HG-induced upregulation of ADAM17 expression and sFlt-1 production. In conclusion, decreased expression of CSE and 3-MST and the subsequent decrease in H2S production contribute to high glucose-induced sFlt-1 production via activating ADAM17 in adipocytes. Exogenous H2S donor NaHS has a potential therapeutic value for diabetic vascular complications.
Collapse
Affiliation(s)
- Tian-xiao Hu
- Department of Endocrinology, Chinese PLA 117th Hospital, Hangzhou 310013, China
- *Tian-xiao Hu: and
| | - Gang Wang
- Department of Physiology, Second Military Medical University, Shanghai 200433, China
| | - Wei Wu
- Department of Obstetrics and Gynecology, Women's Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Lu Gao
- Department of Physiology, Second Military Medical University, Shanghai 200433, China
| | - Qing-ying Tan
- Department of Endocrinology, Chinese PLA 117th Hospital, Hangzhou 310013, China
| | - Jing Wang
- Department of Endocrinology, Chinese PLA 117th Hospital, Hangzhou 310013, China
- *Jing Wang:
| |
Collapse
|