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Ahmad IH, Elhamed Gbr SSA, Ali El Naggar BMM, Abdelwahab MK, El-Saghier EOA, Mohammed DS, Mohamed MA, Mohamed MS, Ali Abd El-Rahim MMM, Attar SE. Relation between serum sclerostin and CTRP3 levels and bone mineral density in diabetic postmenopausal women. BMC Womens Health 2024; 24:490. [PMID: 39237913 PMCID: PMC11375883 DOI: 10.1186/s12905-024-03311-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Accepted: 08/12/2024] [Indexed: 09/07/2024] Open
Abstract
BACKGROUND Osteoporosis (OP) is a common finding in diabetic patients especially high-risk populations such as postmenopausal women. Sclerostin is a glycoprotein chiefly secreted by mature osteocytes and is considered a main regulator of bone formation. The C1q/TNF-Related Protein 3 (CTRP3) was found to be significantly associated with OP in postmenopausal women. The effect of type 2 diabetes mellitus (T2DM) on sclerostin and CTRP3 levels in postmenopausal women is rarely investigated. The present study aimed to assess the impact of T2DM on sclerostin and CTRP3 levels and their relation to OP in postmenopausal women. METHODS The study included 60 postmenopausal women with T2DM and 60 age-matched postmenopausal non-diabetic women. Bone mineral density (BMD) was assessed using dual energy X-ray absorptiometry (DEXA). Serum levels of sclerostin and CTRP3 were assessed using enzyme-linked immunosorbent assay (ELISA) technique. RESULTS Diabetic group expressed significantly higher serum levels of sclerostin when compared with non-diabetic group (110.0 ± 29.0 versus 51.5 ± 23.2 ng; p < 0.001). Oppositely, CTRP3 were significantly lower in the diabetic group (3.5 ± 3.5 versus 9.9 ± 3.7 ng/ml, p < 0.001). Multivariate logistic regression analysis identified HbA1c levels [OR (95% CI): 0.49 (0.26-0.93), p = 0.028], sclerotin levels [OR (95% CI): 1.06 (1.0-1.012), p = 0.041] and CTRP3 levels [OR (95%) CI: 1.64 (1.0-2.68), p = 0.047] as significant predictors of OP in diabetic patients. CONCLUSIONS Sclerostin and CTRP3 levels are involved in OP in postmenopausal diabetic patients.
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Affiliation(s)
- Inass Hassan Ahmad
- Endocrinology and Metabolism Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | | | | | - Marwa Khairy Abdelwahab
- Clinical Pathology Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | | | - Doaa Sayed Mohammed
- Endocrinology and Metabolism Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | | | - Maha S Mohamed
- Rheumatology and Rehabilitation Department, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | | | - Shahinaz El Attar
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine for Girls, Al- Azhar University, Cairo, Egypt.
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Wu D, Cui Y, Cao Y, Wang Y, Zhang J, Guo Y, Yuan B. Clinical implications and mechanism of complement C1q in polymyositis. Appl Biochem Biotechnol 2024; 196:3088-3101. [PMID: 37624510 DOI: 10.1007/s12010-023-04692-7] [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] [Accepted: 08/16/2023] [Indexed: 08/26/2023]
Abstract
Polymyositis (PM) is the most common autoimmune disease in neurology and among muscle disorders; it is of great significance to thoroughly understand the mechanism of PM to find new diagnosis and treatment methods. This research intends to elucidate the clinical implications and mechanisms of complement C1q in polymyositis (PM). One hundred fifteen PM patients (research group, RG) and 120 healthy subjects (control group, CG) who visited our hospital between March 2017 and March 2020 were selected. Peripheral blood C1q and creatine kinase (CK) levels of both groups were measured, and their correlations with clinical symptoms and prognostic recurrence of PM. Additionally, to further understand the mechanism of action of C1q in PM, we purchased BALB/c mice and grouped them as follows: control group with normal feeding, PM group with PM modeling, intervention group with PM modeling, and intraperitoneal injection of gC1qR monoclonal antibody 60.11, a C1q protein receptor. Inflammatory factors and muscle histopathology were detected in all groups of mice. Finally, rat macrophages (mø) were isolated, and changes in the biological behavior of mø were observed after silencing the expression of gC1qR. Serum C1q and CK were both higher in RG than in CG, with favorable diagnostic effects on PM (P < 0.05). C1q and CK increased in symptomatic anti-ribonuclear protein antibody (RNP)-positive patients but decreased in anti Jo-1 antibody (Jo-1)- and anti-neutrophil cytoplasmic antibody (ANCA)-positive patients (P < 0.05). PM mice were observed with elevated gC1qR, while model mice exhibited severe infiltration of inflammatory cells in muscle tissue, increased pro-IFs, and reduced anti-IFs, and the animals in the intervention group showed improved conditions (P < 0.05). Finally, it was found that CD68, CD86 protein, and invasion capacity of gC1qR-sh-transfected cells decreased, while CD206 and CD163 increased (P < 0.05). C1q is elevated in PM and is strongly linked to the pathological process of PM. Inhibition of gC1qR expression reduced inflammatory infiltration in PM mice.
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Affiliation(s)
- Di Wu
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China
| | - Yan Cui
- Department of Anesthesiology, Chest Branch of Nanjing Brain Hospital, Nanjing, 210000, Jiangsu, China
| | - Yujia Cao
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China
| | - Yanjuan Wang
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China
| | - Jinhua Zhang
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China
| | - Yijing Guo
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China
| | - Baoyu Yuan
- Department of Neurology, Affiliated Zhongda Hospital, Neuropsychiatric Institute, School of Medicine, Southeast University, No. 87, Dingjiaqiao, Gulou District, Nanjing, 210003, Jiangsu, China.
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Schmid A, Pankuweit S, Vlacil AK, Koch S, Berge B, Gajawada P, Richter M, Troidl K, Schieffer B, Schäffler A, Grote K. Decreased circulating CTRP3 levels in acute and chronic cardiovascular patients. J Mol Med (Berl) 2024; 102:667-677. [PMID: 38436713 PMCID: PMC11055757 DOI: 10.1007/s00109-024-02426-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 03/05/2024]
Abstract
C1q/TNF-related protein 3 (CTRP3) represents an adipokine with various metabolic and immune-regulatory functions. While circulating CTRP3 has been proposed as a potential biomarker for cardiovascular disease (CVD), current data on CTRP3 regarding coronary artery disease (CAD) remains partially contradictory. This study aimed to investigate CTRP3 levels in chronic and acute settings such as chronic coronary syndrome (CCS) and acute coronary syndrome (ACS). A total of 206 patients were classified into three groups: CCS (n = 64), ACS having a first acute event (ACS-1, n = 75), and ACS having a recurrent acute event (ACS-2, n = 67). The control group consisted of 49 healthy individuals. ELISA measurement in peripheral blood revealed decreased CTRP3 levels in all patient groups (p < 0.001) without significant differences between the groups. This effect was exclusively observed in male patients. Females generally exhibited significantly higher CTRP3 plasma levels than males. ROC curve analysis in male patients revealed a valuable predictive potency of plasma CTRP3 in order to identify CAD patients, with a proposed cut-off value of 51.25 ng/mL. The sensitivity and specificity of prediction by CTRP3 were congruent for the subgroups of CCS, ACS-1, and ACS-2 patients. Regulation of circulating CTRP3 levels in murine models of cardiovascular pathophysiology was found to be partly opposite to the clinical findings, with male mice exhibiting higher circulating CTRP3 levels than females. We conclude that circulating CTRP3 levels are decreased in both male CCS and ACS patients. Therefore, CTRP3 might be useful as a biomarker for CAD but not for distinguishing an acute from a chronic setting. KEY MESSAGES: CTRP3 levels were found to be decreased in both male CCS and ACS patients compared to healthy controls. Plasma CTRP3 has a valuable predictive potency in order to identify CAD patients among men and is therefore proposed as a biomarker for CAD but not for distinguishing between acute and chronic settings. Regulation of circulating CTRP3 levels in murine models of cardiovascular pathophysiology was found to be partly opposite to the clinical findings in men.
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Affiliation(s)
- Andreas Schmid
- Department of Internal Medicine III, Giessen University Hospital, Giessen, Germany.
| | - Sabine Pankuweit
- Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | | | - Sören Koch
- Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
| | - Benedikt Berge
- Department of Cardiac Surgery, Kerckhoff Heart Center, Bad Nauheim, Germany
| | - Praveen Gajawada
- Department of Cardiac Surgery, Kerckhoff Heart Center, Bad Nauheim, Germany
| | - Manfred Richter
- Department of Cardiac Surgery, Kerckhoff Heart Center, Bad Nauheim, Germany
| | - Kerstin Troidl
- Department of Life Sciences and Engineering, TH Bingen, University of Applied Sciences, Bingen Am Rhein, Germany
- Department of Vascular and Endovascular Surgery, Cardiovascular Surgery Clinic, University Hospital Frankfurt and Wolfgang Goethe University Frankfurt, Frankfurt, Germany
| | | | - Andreas Schäffler
- Department of Internal Medicine III, Giessen University Hospital, Giessen, Germany
| | - Karsten Grote
- Cardiology and Angiology, Philipps-University Marburg, Marburg, Germany
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Simon Machado R, Mathias K, Joaquim L, Willig de Quadros R, Petronilho F, Tezza Rezin G. From diabetic hyperglycemia to cerebrovascular Damage: A narrative review. Brain Res 2023; 1821:148611. [PMID: 37793604 DOI: 10.1016/j.brainres.2023.148611] [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: 07/13/2023] [Revised: 09/04/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
Diabetes mellitus is a globally significant disease that can lead to systemic complications, particularly vascular damage, including cardiovascular and cerebrovascular diseases of relevance. The physiological changes resulting from the imbalance in blood glucose levels play a crucial role in initiating vascular endothelial damage. Elevated glucose levels can also penetrate the central nervous system, triggering diabetic encephalopathy characterized by oxidative damage to brain components and activation of alternative and neurotoxic pathways. This brain damage increases the risk of ischemic stroke, a leading cause of mortality worldwide and a major cause of disability among surviving patients. The aim of this review is to highlight important pathways related to hyperglycemic damage that extend to the brain and result in vascular dysfunction, ultimately leading to the occurrence of a stroke. Understanding how diabetes mellitus contributes to the development of ischemic stroke and its impact on patient outcomes is crucial for implementing therapeutic strategies that reduce the incidence of diabetes mellitus and its complications, ultimately decreasing morbidity and mortality associated with the disease.
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Affiliation(s)
- Richard Simon Machado
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil; Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil.
| | - Khiany Mathias
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Larissa Joaquim
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Rafaella Willig de Quadros
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Fabricia Petronilho
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina, Criciuma, SC, Brazil
| | - Gislaine Tezza Rezin
- Laboratory of Neurobiology of Inflammatory and Metabolic Processes, Graduate Program in Health Sciences, Health Sciences Unit, University of South Santa Catarina, Tubarão, SC, Brazil
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Wu KC, Lin HW, Chu PC, Li CI, Kao HH, Lin CH, Cheng YJ. A non-invasive mouse model that recapitulates disuse-induced muscle atrophy in immobilized patients. Sci Rep 2023; 13:22201. [PMID: 38097709 PMCID: PMC10721881 DOI: 10.1038/s41598-023-49732-8] [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: 07/06/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023] Open
Abstract
Disuse muscle atrophy occurs consequent to prolonged limb immobility or bed rest, which represents an unmet medical need. As existing animal models of limb immobilization often cause skin erosion, edema, and other untoward effects, we here report an alternative method via thermoplastic immobilization of hindlimbs in mice. While significant decreases in the weight and fiber size were noted after 7 days of immobilization, no apparent skin erosion or edema was found. To shed light onto the molecular mechanism underlying this muscle wasting, we performed the next-generation sequencing analysis of gastrocnemius muscles from immobilized versus non-mobilized legs. Among a total of 55,487 genes analyzed, 787 genes were differentially expressed (> fourfold; 454 and 333 genes up- and down-regulated, respectively), which included genes associated with muscle tissue development, muscle system process, protein digestion and absorption, and inflammation-related signaling. From a clinical perspective, this model may help understand the molecular/cellular mechanism that drives muscle disuse and identify therapeutic strategies for this debilitating disease.
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Affiliation(s)
- Kun-Chang Wu
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Hsiang-Wen Lin
- School of Pharmacy, College of Pharmacy, China Medical University, Taichung, Taiwan
| | - Po-Chen Chu
- Department of Cosmeceutics and Graduate Institute of Cosmeceutics, China Medical University, Taichung, Taiwan
| | - Chia-Ing Li
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Hsiang-Han Kao
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Hsueh Lin
- Department of Geriatric Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Jung Cheng
- Department of Physical Therapy and Graduate Institute of Rehabilitation Science, China Medical University, Dr. Yu-Jung Cheng, No. 100, Section 1, Jingmao Road, Beitun District, Taichung City, 406040, Taiwan.
- Department of Rehabilitation, China Medical University Hospital, Taichung, Taiwan.
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Lin H, Yi J. CTRP3 regulates NF-κB and TGFβ1/Smad3 pathways to alleviate airway inflammation and remodeling in asthmatic mice induced by OVA. Allergol Immunopathol (Madr) 2023; 51:31-39. [PMID: 37422777 DOI: 10.15586/aei.v51i4.867] [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: 03/13/2023] [Accepted: 04/17/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Asthma is a common illness with chronic airway inflammation. C1q/tumor necrosis factor (TNF)-related protein 3 (CTRP3) plays a vital role ininflammatory response, but its effect on asthma is imprecise. Herein, we analyzed the functions of CTRP3 in asthma. METHODS The BALB/c mice were randomized into four groups: control, ovalbumin (OVA), OVA+vector, and OVA+CTRP3. The asthmatic mice model was established by OVA stimulation. Overexpression of CTRP3 was implemented by the transfection of corresponding adeno-associated virus 6 (AAV6). The contents of CTRP3, E-cadherin, N-cadherin, smooth muscle alpha-actin (α-SMA), phosphorylated (p)-p65/p65, transforming growth factor-beta 1 (TGFβ1), and p-Smad3/Smad3 were determined by Western blot analysis. The quantity of total cells, eosinophils, neutrophils, and lymphocytes in bronchoalveolar lavage fluid (BALF) was assessed by using a hemocytometer. The contents of tumor necrosis factor-α and interleukin-1β in BALF were examined by enzyme-linked immunesorbent serologic assay. The lung function indicators and airway resistance (AWR) were measured. The bronchial and alveolar structures were evaluated by hematoxylin and eosin staining and sirius red staining. RESULTS The CTRP3 was downregulated in mice of OVA groups; however, AAV6-CTRP3 treatment markedly upregulated the expression of CTRP3. Upregulation of CTRP3 diminished asthmatic airway inflammation by decreasing the number of inflammatory cells and the contents of proinflammatory factors. CTRP3 markedly lessened AWR and improved lung function in OVA-stimulated mice. Histological analysis found that CTRP3 alleviated OVA-induced airway remodeling in mice. Moreover, CTRP3 modulated NF-κB and TGFβ1/Smad3 pathways in OVA-stimulated mice. CONCLUSION CTRP3 alleviated airway inflammation and remodeling in OVA-induced asthmatic mice via regulating NF-κB and TGFβ1/Smad3 pathways.
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Affiliation(s)
- Hai Lin
- Department of Respiratory and Critical Care Medicine, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jinrong Yi
- Department of Anesthesiology, Ganzhou Women and Children's Health Care Hospital, Ganzhou, Jiangxi, China;
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Decreased Epicardial CTRP3 mRNA Levels in Patients with Type 2 Diabetes Mellitus and Coronary Artery Disease Undergoing Elective Cardiac Surgery: A Possible Association with Coronary Atherosclerosis. Int J Mol Sci 2022; 23:ijms23179988. [PMID: 36077376 PMCID: PMC9456433 DOI: 10.3390/ijms23179988] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: C1q TNF-related protein 3 (CTRP3) is an adipokine with anti-inflammatory and cardioprotective properties. In our study, we explored changes in serum CTRP3 and its gene expression in epicardial (EAT) and subcutaneous (SAT) adipose tissue in patients with and without coronary artery disease (CAD) and type 2 diabetes mellitus (T2DM) undergoing elective cardiac surgery. (2) Methods: SAT, EAT, and blood samples were collected at the start and end of surgery from 34 patients: (i) 11 without CAD or T2DM, (ii) 14 with CAD and without T2DM, and (iii) 9 with both CAD and T2DM. mRNA levels of CTRP3 were assessed by quantitative reverse transcription PCR. Circulating levels of CTRP3 and other factors were measured using ELISA and Luminex Multiplex commercial kits. (3) Results: Baseline plasma levels of TNF-α and IL6 did not differ among the groups and increased at the end of surgery. Baseline circulating levels of CTRP3 did not differ among the groups and decreased after surgery. In contrast, baseline CTRP3 mRNA levels in EAT were significantly decreased in CAD/T2DM group, while no differences were found for TNF-α and IL6 gene expression. (4) Conclusions: Our data suggest that decreased EAT mRNA levels of CTRP3 could contribute to higher risk of atherosclerosis in patients with CAD and T2DM.
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Ding H, Wang Z, Song W. CTRP3 protects hippocampal neurons from oxygen-glucose deprivation-induced injury through the AMPK/Nrf2/ARE pathway. Hum Exp Toxicol 2021; 40:1153-1162. [PMID: 33501881 DOI: 10.1177/0960327121989412] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE C1q/TNF-related protein 3 (CTRP3), a member of CTRP family, has been found to have neuroprotective effect. In the current study, we investigated the protective role of CTRP3 in hippocampal neurons exposed to oxygen-glucose deprivation/reperfusion (OGD/R). MATERIALS AND METHODS The mRNA and protein levels of CTRP3 in OGD/R-stimulated hippocampal neurons were measured using qRT-PCR and western blot analysis, respectively. CCK-8 assay was performed to assess cell viability. ROS production was measured using the fluorescence probe 2',7'-dichlorofluorescein diacetate (H2DCFDA). The activities of SOD and GPx were determined using ELISA. Cell apoptosis was assessed. Luciferase reporter assay was carried out to assess the activation of ARE). The levels of p-AMPK and Nrf2 were measured using western blot. RESULTS Our results showed that the expression of CTRP3 was significantly downregulated in hippocampal neuronal cells exposed to OGD/R. Overexpression of CTRP3 improved cell viability of OGD/R-induced hippocampal neurons. In addition, overexpression of CTRP3 attenuated the OGD/R-caused oxidative stress with decreased ROS production and increased activities of SOD and GPx. Moreover, CTRP3 caused a significant increase in bcl-2 expression and decreases in bax expression and caspase-3 activity. Furthermore, CTRP3 overexpression significantly upregulated the levels of p-AMPK and Nrf2, as well induced the activation of ARE in OGD-R-induced hippocampal neurons. CTRP3 upregulated the mRNA expression levels of HO-1, NQO-1 and GPx-3. Additionally, treatment with the inhibitor of AMPK partially reversed the neuroprotective effect of CTRP3 in OGD/R-exposed neurons. CONCLUSION CTRP3 exerted protective effect on OGD/R-induced cerebral injury, which was regulated by AMPK/Nrf2/ARE pathway.
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Affiliation(s)
- H Ding
- Department of Anesthesiology, 159431Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - Z Wang
- Department of Anesthesiology, 159431Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
| | - W Song
- Department of Anesthesiology, 159431Shaanxi Provincial People's Hospital, Xi'an, Shaanxi, China
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Chen Y, Liu W, Chen M, Sun Q, Chen H, Li Y. Up-regulating lncRNA OIP5-AS1 protects neuron injury against cerebral hypoxia-ischemia induced inflammation and oxidative stress in microglia/macrophage through activating CTRP3 via sponging miR-186-5p. Int Immunopharmacol 2021; 92:107339. [PMID: 33516048 DOI: 10.1016/j.intimp.2020.107339] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 12/11/2020] [Accepted: 12/23/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Inflammation and oxidative stress is closely associated with the development of ischemic brain stroke. Opa-interacting protein 5 antisense RNA 1 (OIP5-AS1), a novel identified long non-coding RNA (lncRNA), has been suggested to play an important role in the development of many types of human cancers. However, the functional involvement of OIP5-AS1 in ischemic stroke is still unknown. METHODS Quantitative real-time polymerase chain reaction and /or western blot were conducted to determine the expression profiles of OIP5-AS1, C1q/TNF-related protein 3 (CTRP3) and miR-186-5p in the serum of stroke patients, as well as in the ischemic penumbra of rats with middle cerebral artery occlusion/reperfusion (MCAO/R) injury and microglial cells treated with oxygen glucose deprivation/re-oxygenation (OGD/R). Upon selective regulation of OIP5-AS1 and miR-186-5p, the inflammation and oxidative stress responses in microglia/macrophage as well as neurologic functions in MCAO/R rats were detected. Furthermore, the interactions between OIP5-AS1 and miR-186-5p, miR-186-5p and CTRP3 were investigated by RNA immunoprecipitation (RIP) assay, luciferase report assay and bioinformation anaylsis. RESULTS We observed markedly increased infarct volume, neuronal apoptosis, inflammation and oxidative stress responses in the infarcted lesions of MCAO/R rats, in line with down-regulated levels of OIP5-AS1 and CTRP3 while up-regulated miR-186-5p. Functional studies demonstrated that up-regulation of OIP5-AS1 attenuated infarct volume, neuronal apoptosis, microglia/macrophage inflammation and oxidative stress responses induced by MCAO/R or OGD/R. In terms of mechanism, we revealed that OIP5-AS1-miR-186-5p-CTRP3 axis played a vital role in modulating microglia/macrophage activation and neuronal apoptosis. CONCLUSION Up-regulating lncRNA OIP5-AS1 protects neuron injury against MCAO/R induced inflammation and oxidative stress in microglia/macrophage through activating CTRP3 via sponging miR-186-5p.
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Affiliation(s)
- Yuqin Chen
- Department of Rehabilitation, Central Hospital of Linyi, Linyi 276400, Shandong, China
| | - Weihua Liu
- Department of Pharmacy, The Third People's Hospital of Linyi, Linyi 276000, Shandong, China
| | - Mingyu Chen
- Department of Neurology, Central Hospital of Linyi, Linyi 276400, Shandong, China
| | - Qingyun Sun
- Stroke Center, The People's Hospital of Linyi, Linyi 276000, Shandong, China
| | - Hongyu Chen
- Stroke Center, The People's Hospital of Linyi, Linyi 276000, Shandong, China
| | - Yufen Li
- Department of Otolaryngology, The People's Hospital of Linyi, Linyi 276000, Shandong, China.
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