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Ahmed Fahmy ME, Abdel-Aal AA, Shalaby MA, Issa R, Badawi M, Fouly MA. Modulation of CXCL10 activity as a therapeutic target of ocular toxoplasmosis in diabetic mice. J Parasit Dis 2024; 48:33-45. [PMID: 38440758 PMCID: PMC10908887 DOI: 10.1007/s12639-023-01635-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/09/2023] [Indexed: 03/06/2024] Open
Abstract
Ocular toxoplasmosis is likely the most common cause of infectious posterior uveitis worldwide. CXCL10 chemokine has an important role in the maintenance of the T-cell response and the control of Toxoplasma gondii in the eye during chronic infection. Drugs that can modulate the chemokine activity could be effective against the parasite. In this work, CXCL10 local retinal expression was investigated in a diabetic mouse model with ocular toxoplasmosis for the first time. In addition, the efficacy of naphthoquinones and quinolones was compared to spiramycin (SP) in treating the infection and modulating the chemokine expression. Our results revealed that chloroquine (CQ) achieved the best results regarding the reduction of cerebral cyst burden (84.36%), improving the retinal histopathological changes, cellular infiltrates, and vasculitis significantly (P < 0.005), and balancing the strong CXCL10 expression caused by the infection. Buparvaquone-treated mice showed a significant percentage of reduction of brain cysts (76.25%), moderate improvement of histopathology, and mild to moderate CXCL10 expression. While SP showed the least efficacy against the parasite in the eye in the form of mild improvement of histopathological changes and downregulation of retinal chemokine expression with the least reduction rate of cerebral parasitic burden (57%). In conclusion, Optimal control of pathogens probably needs a balanced immune response with an optimum expression of chemokines. So, targeting the modulation of retinal CXCL10 may eventually be beneficial in the management of ocular toxoplasmosis plus its potential to act as a marker for predictive local immunological response during the infection.
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Affiliation(s)
| | - Amany Ahmed Abdel-Aal
- Department of Medical Parasitology, Faculty of Medicine, Cairo University, Cairo, Egypt
- Department of Postgraduate Studies & Scientific Research, Armed Forces College of Medicine (AFCM), Cairo, Egypt
| | - Maisa Ahmed Shalaby
- Department of Medical Parasitology, Theodor Bilharz Research Institute (TBRI), Giza, Egypt
| | - Ragaa Issa
- Departement of Parasitology, Research Institute of Ophthalmology, Giza, Egypt
| | - Manal Badawi
- Departement of Pathology, National Research Center, Giza, Egypt
| | - Marwa A. Fouly
- Departement of Retina, Research Institute of Ophthalmology, Giza, Egypt
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Baek J, Lee YH, Jeong HY, Lee SY. Mitochondrial quality control and its emerging role in the pathogenesis of diabetic kidney disease. Kidney Res Clin Pract 2023; 42:546-560. [PMID: 37448292 PMCID: PMC10565453 DOI: 10.23876/j.krcp.22.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/10/2023] [Accepted: 01/17/2023] [Indexed: 07/15/2023] Open
Abstract
Most eukaryotic cells have mitochondrial networks that can change in shape, distribution, and size depending on cellular metabolic demands and environments. Mitochondrial quality control is critical for various mitochondrial functions including energy production, redox homeostasis, intracellular calcium handling, cell differentiation, proliferation, and cell death. Quality control mechanisms within mitochondria consist of antioxidant defenses, protein quality control, DNA damage repair systems, mitochondrial fusion and fission, mitophagy, and mitochondrial biogenesis. Defects in mitochondrial quality control and disruption of mitochondrial homeostasis are common characteristics of various kidney cell types under hyperglycemic conditions. Such defects contribute to diabetes-induced pathologies in renal tubular cells, podocytes, endothelial cells, and immune cells. In this review, we focus on the roles of mitochondrial quality control in diabetic kidney disease pathogenesis and discuss current research evidence and future directions.
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Affiliation(s)
- Jihyun Baek
- Division of Nephrology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, Republic of Korea
| | - Yu Ho Lee
- Division of Nephrology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Hye Yun Jeong
- Division of Nephrology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - So-Young Lee
- Division of Nephrology, Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
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Zhang R, Bian C, Gao J, Ren H. Endoplasmic reticulum stress in diabetic kidney disease: adaptation and apoptosis after three UPR pathways. Apoptosis 2023:10.1007/s10495-023-01858-w. [PMID: 37285056 DOI: 10.1007/s10495-023-01858-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2023] [Indexed: 06/08/2023]
Abstract
Diabetes kidney disease (DKD) is one of the common chronic microvascular complications of diabetes, which has become the most important cause of modern chronic kidney disease beyond chronic glomerulonephritis. The endoplasmic reticulum is one of the largest organelles, and endoplasmic reticulum stress (ERS) is the basic mechanism of metabolic disorder in all organs and tissues. Under the stimulation of stress-induced factors, the endoplasmic reticulum, as a trophic receptor, regulates adaptive and apoptotic ERS through molecular chaperones and three unfolded protein reaction (UPR) pathways, thereby regulating diabetic renal damage. Therefore, three pathway factors have different expressions in different sections of renal tissues. This study deeply discussed the specific reagents, animals, cells, and clinical models related to ERS in DKD, and reviewed ERS-related three pathways on DKD with glomerular filtration membrane, renal tubular reabsorption, and other pathological lesions of different renal tissues, as well as the molecular biological mechanisms related to the balance of adaption and apoptosis by searching and sorting out MeSH subject words from PubMed database.
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Affiliation(s)
- Ruijing Zhang
- Advanced Institute for Medical Sciences, Dalian Medical University, Lvshun South Road west 9, Dalian, 116044, Liaoning, China
| | - Che Bian
- Department of Endocrinology and Metabolism, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Jing Gao
- Department of Cardiology, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Huiwen Ren
- Advanced Institute for Medical Sciences, Dalian Medical University, Lvshun South Road west 9, Dalian, 116044, Liaoning, China.
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Renard P, Caccavelli L, Legendre A, Tuchmann-Durand C, Balakirouchenane D, Blanchet B, Narjoz C, Straube M, Hubas A, Garros A, Mention K, Bednarek N, Goudin N, Broissand C, Schlatter J, Cisternino S, Cagnard N, van Endert P, Diana J, de Calbiac H, de Lonlay P. Hydroxychloroquine sulfate: A novel treatment for lipin-1 deficiency? Biomed Pharmacother 2023; 163:114813. [PMID: 37150031 DOI: 10.1016/j.biopha.2023.114813] [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: 03/09/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND Lipin-1 deficiency is a life-threatening disease that causes severe rhabdomyolysis (RM) and chronic symptoms associated with oxidative stress. In the absence of treatment, Hydroxychloroquine sulfate (HCQ) was administered to patients off label use on a compassionate basis in order to improve their physical conditions. METHODS Eleven patients with LPIN1 mutations were treated with HCQ. Clinical and biological efficacy and tolerance were assessed, including pain and quality of life, physical capacities, cardiopulmonary parameters, creatine kinase levels and plasma proinflammatory cytokines. To explore a dose-dependent effect of HCQ, primary myoblasts from 4 patients were incubated with various HCQ concentrations in growth medium (GM) or during starvation (EBSS medium) to investigate autophagy and oxidative stress. FINDINGS Under HCQ treatment, patient physical capacities improved. Abnormal cardiac function and peripheral muscle adaptation to exercise were normalized. However, two patients who had the highest mean blood HCQ concentrations experienced RM. We hypothesized that HCQ exerts deleterious effects at high concentrations by blocking autophagy, and beneficial effects on oxidative stress at low concentrations. We confirmed in primary myoblasts from 4 patients that high in vitro HCQ concentration (10 µM) but not low concentration (1 µM and 0.1 µM) induced autophagy blockage by modifying endolysosomal pH. Low HCQ concentration (1 µM) prevented reactive oxygen species (ROS) and oxidized DNA accumulation in myoblasts during starvation. INTERPRETATION HCQ improves the condition of patients with lipin-1 deficiency, but at low concentrations. In vitro, 1 µM HCQ decreases oxidative stress in myoblasts whereas higher concentrations have a deleterious effect by blocking autophagy.
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Affiliation(s)
- Perrine Renard
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France
| | - Laure Caccavelli
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France; Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, Filière G2M, MetabERN, F-75015 Paris, France
| | - Antoine Legendre
- Centre de référence Malformations Cardiaques Congénitales Complexes M3C - Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France
| | - Caroline Tuchmann-Durand
- Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, Filière G2M, MetabERN, F-75015 Paris, France; Institut Imagine, Centre d'Investigation Clinique pour les Thérapies innovantes, Département de Biothérapie, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France
| | - David Balakirouchenane
- Département de pharmacocinétique et pharmacochimie, Centre Hospitalier Universitaire Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), CARPEM, F-75014 Paris, France
| | - Benoit Blanchet
- Département de pharmacocinétique et pharmacochimie, Centre Hospitalier Universitaire Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), CARPEM, F-75014 Paris, France; Université Paris Cité, PRES Sorbonne Paris Cité, CARPEM, Faculté de Pharmacie, INSERM U-1268 / CNRS UMR-8038, FR-750006 Paris, France
| | - Céline Narjoz
- Service de Biochimie, Hôpital Universitaire Européen Georges Pompidou, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France
| | - Marjolène Straube
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France; Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, Filière G2M, MetabERN, F-75015 Paris, France
| | - Arnaud Hubas
- Service de biochimie et Génétique Moléculaire, Laboratoire de culture cellulaire, Hôpital Universitaire Cochin, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75014 Paris, France
| | - Alexa Garros
- Centre de compétence des maladies héréditaires du métabolisme, Hôpital Universitaire Grenoble Alpes, Filière G2M, Grenoble, France
| | - Karine Mention
- Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Jeanne de Flandre, Filière G2M, MetabERN, Lille, France
| | - Nathalie Bednarek
- Centre de compétence des maladies héréditaires du métabolisme, Hôpital Universitaire, Filière G2M, Reims, France
| | - Nicolas Goudin
- Cell Imaging & Flow Cytometry Core Facilities, Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Christine Broissand
- Service de Pharmacie, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France
| | - Joel Schlatter
- Service de Pharmacie, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France
| | - Salvatore Cisternino
- Service de Pharmacie, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), F-75015 Paris, France; Université Paris Cité, Optimisation Thérapeutique en Neuropsychopharmacologie, INSERM UMRS-1144, F-75006 Paris, France
| | - Nicolas Cagnard
- Université Paris Cité, Bioinformatiques, SFR Necker, INSERM US-24 / CNRS UAR-3633, F-75015 Paris, France
| | - Peter van Endert
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France; Service Immunologie Biologique, AP-HP, Hôpital Universitaire Necker-Enfants Malades, F-75015 Paris, France
| | - Julien Diana
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France
| | - Hortense de Calbiac
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France; Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, Filière G2M, MetabERN, F-75015 Paris, France
| | - Pascale de Lonlay
- Université Paris Cité, INSERM, CNRS, Institut Necker Enfants Malades, F-75015 Paris, France; Centre de référence des maladies héréditaires du métabolisme, Hôpital Universitaire Necker-Enfants Malades, Assistance Publique-Hôpitaux de Paris (AP-HP), Institut Imagine, Filière G2M, MetabERN, F-75015 Paris, France.
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Brkić BM, Rovčanin B, Stojanović M, Srebro D, Vučković S, Savić Vujović K. Chloroquine Attenuates Oxidative Stress in Gentamicin-Induced Nephrotoxicity in Rats. Dose Response 2022; 20:15593258221119871. [PMID: 36003319 PMCID: PMC9393693 DOI: 10.1177/15593258221119871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/18/2022] [Accepted: 07/24/2022] [Indexed: 11/25/2022]
Abstract
The wider application of gentamicin is limited by potential adverse effects
(nephrotoxicity and ototoxicity). The goal of our study was to investigate the effects of
chloroquine on biochemical and oxidative stress parameters in gentamicin-induced
nephrotoxicity in rats. Animals were randomly divided into 1 of 5 groups. First was Sham
group (0.9% NaCl) (n = 8); second group received gentamicin (n = 8); while third (n = 8),
fourth (n = 8) and fifth group (n = 8) received gentamicin and chloroquine in a dose of
0.3, 1 and 3 mg/kg, respectively. The urea and creatinine levels were significantly lower
in chloroquine treated groups in doses of 0.3 mg/kg and 1 mg/kg (P <
0.001). Total oxidant status and the oxidative stress index showed significantly lower
values in all chloroquine treated groups (P < 0.001;
P < 0.005). Malondialdehyde was lower in chloroquine treatment in
doses of 0.3 mg/kg (P < 0.005) and 3 mg/kg (P <
0.05). Chloroquine treatment markedly reduced the level of superoxide dismutase in doses
of 1 mg/kg (P < 0.01) and 3 mg/kg (P < 0.05). Our
study showed that chloroquine attenuates gentamicin-induced nephrotoxicity in rats
regarding biochemical and oxidative stress parameters.
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Affiliation(s)
- Branislava Medić Brkić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Branislav Rovčanin
- Centre for Endocrine Surgery, Clinical Centre of Serbia, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Marko Stojanović
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragana Srebro
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sonja Vučković
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Katarina Savić Vujović
- Department of Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Račková L, Csekes E. Redox aspects of cytotoxicity and anti-neuroinflammatory profile of chloroquine and hydroxychloroquine in serum-starved BV-2 microglia. Toxicol Appl Pharmacol 2022; 447:116084. [PMID: 35618033 DOI: 10.1016/j.taap.2022.116084] [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: 02/17/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 11/18/2022]
Abstract
Chloroquine (CQ) and hydroxychloroquine (HCQ) have long been used worldwide to treat and prevent human malarias. However, these 4-aminoquinolines have also shown promising potential in treating chronic illnesses with an inflammatory component, including neurological diseases. Given the current demand for serum avoidance during pharmacological testing and modeling of some pathologies, we compared cytotoxicities of CQ and HCQ in both serum-deprived and -fed murine BV-2 microglia. Furthermore, we assessed the anti-neuroinflammatory potential of both compounds in serum-deprived cells. Under both conditions, CQ showed higher cytotoxicity than HCQ. However, the comparable MTT-assay-derived data measured under different serum conditions were associated with disparate cytotoxic mechanisms of CQ and HCQ. In particular, under serum starvation, CQ mildly enhanced secondary ROS, mitochondrial hyperpolarization, and decreased phagocytosis. However, CQ promoted G1 phase cell cycle arrest and mitochondrial depolarization in serum-fed cells. Under both conditions, CQ fostered early apoptosis. Additionally, we confirmed that both compounds could exert anti-inflammatory effects in microglia through interference with MAPK signaling under nutrient-deprivation-related stress. Nevertheless, unlike HCQ, CQ is more likely to exaggerate intracellular prooxidant processes in activated starved microglia, which are inefficiently buffered by Nrf2/HO-1 signaling pathway activation. These outcomes also show HCQ as a promising anti-neuroinflammatory drug devoid of CQ-mediated cytotoxicity.
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Affiliation(s)
- Lucia Račková
- Centre of Experimental Medicine, Slovak Academy of Sciences, Institute of Experimental Pharmacology and Toxicology, Dúbravská cesta 9, 841 04 Bratislava, Slovak Republic.
| | - Erika Csekes
- Centre of Experimental Medicine, Slovak Academy of Sciences, Institute of Experimental Pharmacology and Toxicology, Dúbravská cesta 9, 841 04 Bratislava, Slovak Republic
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Maresin 1 Alleviates Diabetic Kidney Disease via LGR6-Mediated cAMP-SOD2-ROS Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7177889. [PMID: 35498124 PMCID: PMC9042615 DOI: 10.1155/2022/7177889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 11/18/2022]
Abstract
Background. Chronic hyperglycemia-induced inflammation is recognized as the most important pathophysiological process in diabetic kidney disease (DKD). As maresin 1 (MaR1) is an extensive anti-inflammatory lipid mediator, the present study investigated the protective role of MaR1 in the pathogenesis of DKD and its clinical relevance. Methods. Serum MaR1 concentrations were analyzed in 104 subjects with normal glucose tolerant, type 2 diabetes (T2DM), or DKD. Streptozotocin (STZ) together with high fat diet was used to induce male C57BL/6 J mice into diabetic mice which were treated with MaR1. Human renal tubule epithelial cells (HK-2 cells) were treated by high glucose for glucotoxicity cell model and transfected with LGR6 siRNA for knockdown with MaR1 added,and detected oxidative stress and inflammatory related factors. Results. Serum MaR1 concentrations were significant decreased in T2DM with or without kidney disease compared with normal participant and were lowest in patients with DKD. Serum MaR1 concentrations were negatively correlated with hemoglobin A1c (HbA1c), duration of diabetes, urinary albumin to creatinine ratio (UACR), neutrophil, and neutrophil-lymphocyte ratio and were positively correlated with high-density lipoprotein-cholesterol (HDL-C) and estimated glomerular filtration rate (eGFR). In mouse model, MaR1 injection alleviated hyperglycemia, UACR and the pathological progression of DKD. Interestingly, the renal expression of LGR6 was down-regulated in DKD and high glucose treated HK-2 cells but up-regulated by MaR1 treatment. Mechanistically, MaR1 alleviated inflammation via LGR6-mediated cAMP-SOD2 antioxidant pathway in DKD mice and high glucose treated HK-2 cells. Conclusions. Our study demonstrates that decreased serum MaR1 levels were correlated with the development of DKD. MaR1 could alleviate DKD and glucotoxicity-induced inflammation via LGR6-mediated cAMP-SOD2 antioxidant pathway. Thus, our present findings identify MaR1 as a predictor and a potential therapeutic target for DKD.
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Lee SY, An HJ, Kim JM, Sung MJ, Kim DK, Kim HK, Oh J, Jeong HY, Lee YH, Yang T, Kim JH, Lim HJ, Lee S. PINK1 deficiency impairs osteoblast differentiation through aberrant mitochondrial homeostasis. Stem Cell Res Ther 2021; 12:589. [PMID: 34823575 PMCID: PMC8614054 DOI: 10.1186/s13287-021-02656-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Background PTEN-induced kinase 1 (PINK1) is a serine/threonine-protein kinase in mitochondria that is critical for mitochondrial quality control. PINK1 triggers mitophagy, a selective autophagy of mitochondria, and is involved in mitochondrial regeneration. Although increments of mitochondrial biogenesis and activity are known to be crucial during differentiation, data regarding the specific role of PINK1 in osteogenic maturation and bone remodeling are limited. Methods We adopted an ovariectomy model in female wildtype and Pink1−/− mice. Ovariectomized mice were analyzed using micro-CT, H&E staining, Masson’s trichrome staining. RT-PCR, western blot, immunofluorescence, alkaline phosphatase, and alizarin red staining were performed to assess the expression of PINK1 and osteogenic markers in silencing of PINK1 MC3T3-E1 cells. Clinical relevance of PINK1 expression levels was determined via qRT-PCR analysis in normal and osteoporosis patients. Results A significant decrease in bone mass and collagen deposition was observed in the femurs of Pink1−/− mice after ovariectomy. Ex vivo, differentiation of osteoblasts was inhibited upon Pink1 downregulation, accompanied by impaired mitochondrial homeostasis, increased mitochondrial reactive oxygen species production, and defects in mitochondrial calcium handling. Furthermore, PINK1 expression was reduced in bones from patients with osteoporosis, which supports the practical role of PINK1 in human bone disease. Conclusions In this study, we demonstrated that activation of PINK1 is a requisite in osteoblasts during differentiation, which is related to mitochondrial quality control and low reactive oxygen species production. Enhancing PINK1 activity might be a possible treatment target in bone diseases as it can promote a healthy pool of functional mitochondria in osteoblasts. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02656-4.
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Affiliation(s)
- So-Young Lee
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Hyun-Ju An
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea.,Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si, 13496, South Korea
| | - Jin Man Kim
- Department of Oral Microbiology and Immunology, School of Dentistry, Seoul National University, Seoul, 03080, Republic of Korea
| | - Min-Ji Sung
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Do Kyung Kim
- CHA Graduate School of Medicine, 120 Hyeryong-ro, Pocheon, 11160, Republic of Korea
| | - Hyung Kyung Kim
- Department of Pathology, Kyung Hee University Hospital at Gangdong, Kyung Hee University, College of Medicine, Seoul, 05278, Republic of Korea
| | - Jongbeom Oh
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si, 13496, South Korea
| | - Hye Yun Jeong
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Yu Ho Lee
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Taeyoung Yang
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Jun Han Kim
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si, 13496, South Korea
| | - Ha Jeong Lim
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, 13496, Republic of Korea
| | - Soonchul Lee
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si, 13496, South Korea.
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Güzel M, Akpınar O. Hydroxychloroquine Attenuates Acute Inflammation (LPS)-Induced Apoptosis via Inhibiting TRPV1 Channel/ROS Signaling Pathways in Human Monocytes. BIOLOGY 2021; 10:biology10100967. [PMID: 34681066 PMCID: PMC8533250 DOI: 10.3390/biology10100967] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/19/2021] [Accepted: 09/22/2021] [Indexed: 12/02/2022]
Abstract
Simple Summary LPS is a well-known agent in cell line models, including U937 monocytes, for inducing acute inflammation (INF). It is not known whether antioxidant HCQ, through the inhibition of TRPV1 in U937, can decrease oxidative monocyte toxicity and cell death. We investigated the modulator action of HCQ treatment through the modulation of TRPV1 on the levels of mROS, INF, and apoptosis in an LPS-stimulated U937 monocyte model. Acute INF activates apoptotic, inflammatory, and oxidant action through acute INF-dependent excessive cROS, MDA, cytokine generation, and Ca2+ influx in U937 human monocyte cells. Furthermore, treatment with acute INF increases TRPV1 and apoptotic marker (CAS3, CAS9, Bax, and Bcl-2) concentrations via downregulation of glutathione level and glutathione peroxidase activity in U937 monocytes. The acute INF-caused U937 oxidative stress and cytotoxicity is diminished by the treatment of HCQ and TRPV1 inhibitor (CPZ). In summary, treatment with HCQ and CPZ induced anti-inflammatory, anti-apoptotic, and antioxidant action via the inhibition of cROS, cytokine generation, and caspase activation. Abstract Acute inflammation (INF) and apoptosis are induced in monocytes by the generation of several factors, including the products of cytosolic oxygen free radicals (cROS) and the excessive influx of Ca2+ via the stimulation of TRPV1. These are main factors in the etiology of monocyte activation-induced inflammatory and neurodegenerative diseases. Importantly, the protective action of hydroxychloroquine (HCQ) treatment via the inhibition of TRPV1 on the levels of inflammatory factors, cROS, and apoptosis in acute INF (lipopolysaccharide, LPS)-exposed neuronal cells was recently reported. However, the relationships between acute INF via TRPV1 activation and HCQ in monocytes have not been fully clarified yet. The cell membrane of U937 human monocytes contains natural TRPV1. In the study plan, we used U937 cells in four main groups, namely control, HCQ (60 μM for 48 h), INF (1 μg/mL LPS for 16 h), and HCQ + INF. The current data indicate that LPS-induced acute INF caused the upregulation of excessive cytosolic Ca2+ accumulation via the stimulation of TRPV1 in the cells. The treatment of INF additionally upregulated the levels of apoptosis and cytokines (IL6, IL1β, and TNFα), due to upregulated cROS and lipid peroxidation levels as well as upregulated generation of caspase -3 (CAS3) and -9 (CAS9) but a decrease in glutathione and glutathione peroxidase. The expression levels of TRPV1, Bax, CAS3, and CAS9 were also upregulated by the treatment of LPS. However, treatment with HCQ and TRPV1 blocker (capsazepine) modulated the levels of cytokines, caspases, cROS, Ca2+ influx, and apoptosis through the modulation of TRPV1 in the U937 that were stimulated with LPS. In summary, the present data suggest TRPV1 activation through the acute INF (LPS)-induced inflammatory, oxidant, and apoptotic adverse actions in monocyte cells, whereas HCQ prevented adverse actions via the modulation of TRPV1. The results may be significant in the modulation of monocyte activation-caused inflammatory and neurodegenerative diseases.
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Affiliation(s)
- Mustafa Güzel
- Labaratory of Medical Microbiology, Private Medical Center of Maltepe, Maltepe Tıp Merkezi, TR-34854 Istanbul, Turkey
- Correspondence:
| | - Orhan Akpınar
- Medical Microbiology Unit, Oral and Maxillofacial Surgery Department, Dentistry School, Suleyman Demirel University, TR-32260 Isparta, Turkey;
- Department of Medical Microbiology, Health Sciences Institute, Suleyman Demirel University, TR-32260 Isparta, Turkey
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Wang WW, Liu YL, Wang MZ, Li H, Liu BH, Tu Y, Yuan CC, Fang QJ, Chen JX, Wang J, Fu Y, Wan ZY, Wan YG, Wu W. Inhibition of Renal Tubular Epithelial Mesenchymal Transition and Endoplasmic Reticulum Stress-Induced Apoptosis with Shenkang Injection Attenuates Diabetic Tubulopathy. Front Pharmacol 2021; 12:662706. [PMID: 34408650 PMCID: PMC8367077 DOI: 10.3389/fphar.2021.662706] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/21/2021] [Indexed: 12/23/2022] Open
Abstract
Background: The proximal renal tubule plays a critical role in diabetic kidney disease (DKD) progression. Early glomerular disease in DKD triggers a cascade of injuries resulting in renal tubulointerstitial disease. These pathophysiological responses are collectively described as diabetic tubulopathy (DT). Thus, therapeutic strategies targeting DT hold significant promise for early DKD treatment. Shenkang injection (SKI) has been widely used to treat renal tubulointerstitial fibrosis in patients with chronic kidney disease in China. However, it is still unknown whether SKI can alleviate DT. We designed a series of experiments to investigate the beneficial effects of SKI in DT and the mechanisms that are responsible for its effect on epithelial-to-mesenchymal transition (EMT) and endoplasmic reticulum (ER) stress-induced apoptosis in DT. Methods: The modified DKD rat models were induced by uni-nephrectomy, streptozotocin intraperitoneal injection, and a high-fat diet. Following the induction of renal injury, these animals received either SKI, rosiglitazone (ROS), or vehicle, for 42 days. For in vitro research, we exposed NRK-52E cells to high glucose (HG) and 4-phenylbutyric acid (4-PBA) with or without SKI or ROS. Changes in parameters related to renal tubular injury and EMT were analyzed in vivo. Changes in the proportion of apoptotic renal tubular cells and ER stress, and the signaling pathways involved in these changes, were analyzed both in vivo and in vitro. Results: SKI and ROS improved the general condition, the renal morphological appearance and the key biochemical parameters, and attenuated renal injury and EMT in the rat model of DKD. In addition, SKI and ROS alleviated apoptosis, inhibited ER stress, and suppressed PERK-eIF2α-ATF4-CHOP signaling pathway activation both in vivo and in vitro. Notably, our data showed that the regulatory in vitro effects of SKI on PERK-eIF2α-ATF4-CHOP signaling were similar to those of 4-PBA, a specific inhibitor of ER stress. Conclusion: This study confirmed that SKI can alleviate DT in a similar manner as ROS, and SKI achieves this effect by inhibiting EMT and ER stress-induced apoptosis. Our findings thereby provide novel information relating to the clinical value of SKI in the treatment of DT.
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Affiliation(s)
- Wen-Wen Wang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China.,Department of Nephrology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
| | - Ying-Lu Liu
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Mei-Zi Wang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Huan Li
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Bu-Hui Liu
- Nephrology Division, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yue Tu
- Department of Traditional Chinese Medicine Health Preservation, Acupuncture, Moxibustion and Massage College, Health Preservation and Rehabilitation College, Nanjing University of Chinese Medicine, Nanjing, China
| | - Can-Can Yuan
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Qi-Jun Fang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jia-Xin Chen
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Jie Wang
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yan Fu
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China
| | - Zi-Yue Wan
- Graduate School of Social Sciences, Faculty of Social Sciences, Hitotsubashi University, Tokyo, Japan
| | - Yi-Gang Wan
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei Wu
- Department of Traditional Chinese Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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