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Kor A, Güven SC, Akan S, Eren F, Ecem Konak H, Maraş Y, Orhan K, Neşelioğlu S, Erten Ş. Serum netrin-1 levels are high in Rheumatoid arthritis associated interstitial lung disease. Clin Biochem 2024; 127-128:110760. [PMID: 38556035 DOI: 10.1016/j.clinbiochem.2024.110760] [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: 07/30/2023] [Revised: 02/28/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Recent data show that netrin-1 has a role in development of pulmonary fibrosis. This study was aimed to investigate serum netrin-1 level and its relation to interstitial lung disease(ILD) in patients with rheumatoid arthritis (RA). METHOD 42 RA patients with RA-ILD, 58 RA patients without RA-ILD (RA non-ILD group), and 61 healthy volunteers were included in this study. The modified DAS28-ESR score was used to calculate disease activity in RA patients. Using the quantitative immunoassay method, Serum netrin-1 levels were measured with an ELISA kit (Catalog number: E-EL-H2328; lab science, lot number: GZWTKZ5SWK, Texas, USA). RESULTS The median value of netrin-1 was found to be significantly higher in the RA-ILD group (82.9 [59.9-124]) compared to both the RA non-ILD group(52.9 [49.5-73.1])(B = -0.006, OR = 0.994, CI 95 %=0.989-0.999, P = 0.018) and the control group(53.5 [49.5-87.5]) (B: -0.005, OR: 0.994, CI 95 %: 0.990-0.999, p: 0.022). A cut-off value of 61.78 for netrin-1 was found to have a sensitivity of 73.8 % and a specificity of 69 % for the diagnosis of RA-ILD (AUC [95 %Cl] = 0.771 [0.679-0.862], p < 0.0001).It was found that high serum netrin-1 level was strongly associated with the RA-usual interstitial pneumonia(UIP) pattern and poorly related to the RA-nonspecific interstitial pneumonia(NSIP) pattern compared to the RA non-ILD group. CONCLUSIONS Netrin-1 is elevated in the serum of patients with RA-ILD, especially in the UIP pattern. Netrin-1 may be a potential candidate for predicting the development of RA-ILD that should be investigated in the pathophysiological and therapeutic fields..
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Affiliation(s)
- Ahmet Kor
- Department of Rheumatology, Aksaray Education and Research Hospital, Aksaray, Turkey.
| | - Serdar Can Güven
- Department of Rheumatology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Selçuk Akan
- Department of Internal Medicine, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Funda Eren
- Department of Medical Biochemistry, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Hatice Ecem Konak
- Department of Rheumatology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Yüksel Maraş
- Department of Rheumatology, University of Health Sciences, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Kevser Orhan
- Department of Rheumatology, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Salim Neşelioğlu
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University, Ankara Bilkent City Hospital, Ankara, Turkey
| | - Şükran Erten
- Department of Rheumatology, Ankara Yıldırım Beyazıt University, Ankara Bilkent City Hospital, Ankara, Turkey
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Gao Z, Pu C, Lin L, Ou Q, Quan H. Genome-wide association study of blood lipid levels in Southern Han Chinese adults with prediabetes. Front Endocrinol (Lausanne) 2024; 14:1334893. [PMID: 38371897 PMCID: PMC10869499 DOI: 10.3389/fendo.2023.1334893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/22/2023] [Indexed: 02/20/2024] Open
Abstract
Background Dyslipidemia is highly prevalent among individuals with prediabetes, further exacerbating their cardiovascular risk. However, the genetic determinants underlying diabetic dyslipidemia in Southern Han Chinese remain largely unexplored. Methods We performed a genome-wide association study (GWAS) of blood lipid traits in 451 Southern Han Chinese adults with prediabetes. Fasting plasma lipids, including triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were assayed. Genotyping was conducted using the Precision Medicine Diversity Array and Gene Titan platform, followed by genotype imputation using IMPUTE2 with the 1000 Genomes Project (Phase 3, Southern Han Chinese) as reference. Single nucleotide polymorphisms (SNPs) associated with lipid levels were identified using mixed linear regression, with adjustment for covariates. Results We identified 58, 215, 74 and 81 novel SNPs associated with TG, TC, HDL-C and LDL-C levels, respectively (P < 5×10-5). Several implicated loci were located in or near genes involved in lipid metabolism, including SRD5A2, PCSK7, PITPNC1, IRX3, BPI, and LBP. Pathway enrichment analysis highlighted lipid metabolism and insulin secretion. Conclusion This first GWAS of dyslipidemia in Southern Han Chinese with prediabetes identified novel genetic variants associated with lipid traits. Our findings provide new insights into genetic mechanisms underlying heightened cardiovascular risk in the prediabetic stage. Functional characterization of implicated loci is warranted.
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Affiliation(s)
- Zhenshu Gao
- Department of Endocrinology, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, China
| | - Changchun Pu
- Department of Endocrinology, Hainan Affiliated Hospital of Hainan Medical University, Hainan General Hospital, Haikou, China
| | - Leweihua Lin
- Department of Endocrinology, Hainan General Hospital, Haikou, China
| | - Qianying Ou
- Department of Endocrinology, Hainan General Hospital, Haikou, China
| | - Huibiao Quan
- Department of Endocrinology, Hainan General Hospital, Haikou, China
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Alvarez S, Gupta S, Honeychurch K, Mercado-Ayon Y, Kawaguchi R, Butler SJ. Netrin1 patterns the dorsal spinal cord through modulation of Bmp signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.02.565384. [PMID: 37961605 PMCID: PMC10635094 DOI: 10.1101/2023.11.02.565384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
We have identified an unexpected role for netrin1 as a suppressor of bone morphogenetic protein (Bmp) signaling in the developing dorsal spinal cord. Using a combination of gain- and loss-of-function approaches in chicken, embryonic stem cell (ESC), and mouse models, we have observed that manipulating the level of netrin1 specifically alters the patterning of the Bmp-dependent dorsal interneurons (dIs), dI1-dI3. Altered netrin1 levels also change Bmp signaling activity, as measured by bioinformatics, and monitoring phosophoSmad1/5/8 activation, the canonical intermediate of Bmp signaling, and Id levels, a known Bmp target. Together, these studies support the hypothesis that netrin1 acts from the intermediate spinal cord to regionally confine Bmp signaling to the dorsal spinal cord. Thus, netrin1 has reiterative activities shaping dorsal spinal circuits, first by regulating cell fate decisions and then acting as a guidance cue to direct axon extension.
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Association of Netrin 1 with hsCRP in Subjects with Obesity and Recent Diagnosis of Type 2 Diabetes. Curr Issues Mol Biol 2022; 45:134-140. [PMID: 36661496 PMCID: PMC9857863 DOI: 10.3390/cimb45010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022] Open
Abstract
Netrin 1 (Ntn1) is a cell migration protein with an anti-inflammatory effect, which may play a key role in the pathological development of type 2 diabetes (T2D). In this study, we evaluate the relationships between the serum concentrations of Ntn1, glucose, and high-sensitivity C-reactive Protein (hsCRP). We carried out a cross-sectional study including 90 individuals divided into three groups (n = 30): healthy subjects, individuals with obesity without glucose alterations, and individuals with newly diagnosed T2D. Serum concentrations of Ntn1 and hs-CRP were determined by enzyme-linked immunosorbent assay (ELISA). The serum concentration of Ntn1 was higher in individuals with newly diagnosed T2D (0.33 ± 0.22 ng/mL), in comparison to healthy subjects and individuals with obesity (0.13 ± 0.06 and 0.15 ± 0.07 ng/mL, respectively). In addition, we observed a positive association between the levels of Ntn1 and hsCRP (rho = 0.443; p < 0.001) as well as with serum glucose (rho = −0.110; p = 0.05). The serum concentration of Ntn1 was higher in individuals with T2D, in comparison with the other groups in this study, and presented a positive correlation with hsCRP. Therefore, Ntn1 can be considered a promising risk biomarker and a potential therapeutic target for T2D.
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Nedeva I, Gateva A, Assyov Y, Karamfilova V, Velikova T, Kamenov Z. Relationship between circulating netrin-1 levels, obesity, prediabetes and newly diagnosed type 2 diabetes. Arch Physiol Biochem 2022; 128:1533-1538. [PMID: 32654547 DOI: 10.1080/13813455.2020.1780453] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Netrin-1 is presumed to have regenerative, angiogenic and anti-inflammatory properties, thus it could play a substantial role in the development of insulin resistance and T2DM. OBJECTIVE The aim of this study was to evaluate the relationship between serum netrin-1 levels and carbohydrate disturbances in patients with obesity. METHODS Sample size consisted of 163 patients, divided into four groups: obesity without carbohydrate disturbances prediabetes and diabetes and healthy controls Netrin-1 level was determined using ELISA method. RESULTS Circulating serum Netrin-1 was significantly lower in patients only with obesity, as well as with those with prediabetes and diabetes in comparison to the control group. Correlation analysis revealed that netrin-1 correlates negatively with BMI, waist, WSR, LDL and positive with sudomotor function. Netrin-1 ≤ 0.17 ng/ml has about 3 fold higher risk for carbohydrate disturbances (OR 3.06, 95% CI 1.48-6.34, p = .003). CONCLUSION Netrin-1 is associated with an increased risk for glycaemic disorders in patients with obesity.
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Affiliation(s)
- Iveta Nedeva
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Sofia, Bulgaria
| | - Antoaneta Gateva
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Sofia, Bulgaria
| | - Yavor Assyov
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Sofia, Bulgaria
| | - Vera Karamfilova
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Sofia, Bulgaria
| | - Tsvetelina Velikova
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Clinical Laboratory and Clinical Immunology, Laboratory of Clinical Immunology, University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - Zdravko Kamenov
- Department of Internal Medicine, Medical University, Sofia, Bulgaria
- Department of Internal Medicine, Clinic of Endocrinology, University Hospital "Alexandrovska", Sofia, Bulgaria
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Netrin-1: An Emerging Player in Inflammatory Diseases. Cytokine Growth Factor Rev 2022; 64:46-56. [DOI: 10.1016/j.cytogfr.2022.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/12/2022] [Indexed: 12/14/2022]
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Ziegon L, Schlegel M. Netrin-1: A Modulator of Macrophage Driven Acute and Chronic Inflammation. Int J Mol Sci 2021; 23:ijms23010275. [PMID: 35008701 PMCID: PMC8745333 DOI: 10.3390/ijms23010275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/11/2022] Open
Abstract
Netrins belong to the family of laminin-like secreted proteins, which guide axonal migration and neuronal growth in the developing central nervous system. Over the last 20 years, it has been established that netrin-1 acts as a chemoattractive or chemorepulsive cue in diverse biological processes far beyond neuronal development. Netrin-1 has been shown to play a central role in cell adhesion, cell migration, proliferation, and cell survival in neuronal and non-neuronal tissue. In this context, netrin-1 was found to orchestrate organogenesis, angiogenesis, tumorigenesis, and inflammation. In inflammation, as in neuronal development, netrin-1 plays a dichotomous role directing the migration of leukocytes, especially monocytes in the inflamed tissue. Monocyte-derived macrophages have long been known for a similar dual role in inflammation. In response to pathogen-induced acute injury, monocytes are rapidly recruited to damaged tissue as the first line of immune defense to phagocyte pathogens, present antigens to initiate the adaptive immune response, and promote wound healing in the resolution phase. On the other hand, dysregulated macrophages with impaired phagocytosis and egress capacity accumulate in chronic inflammation sites and foster the maintenance-and even the progression-of chronic inflammation. In this review article, we will highlight the dichotomous roles of netrin-1 and its impact on acute and chronic inflammation.
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Ang X, Jiang Y, Cai Z, Zhou Q, Li M, Zhang B, Chen W, Chen LH, Zhang X. A nomogram for bladder pain syndrome/interstitial cystitis based on netrin-1. Int Urol Nephrol 2021; 54:469-477. [PMID: 34897588 PMCID: PMC8831275 DOI: 10.1007/s11255-021-03084-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/04/2021] [Indexed: 12/01/2022]
Abstract
Purpose This study aimed to combine plasma netrin-1 and clinical parameters to construct a diagnostic model for bladder pain syndrome/interstitial cystitis (BPS/IC). Methods We analyzed the independent diagnostic value of netrin-1 and the correlation with clinical symptom scores of BPS/IC. Clinical parameters were selected using LASSO regression, and a multivariate logistic regression model based on netrin-1 was established, and then a nomogram of BPS/IC prevalence was constructed. The nomogram was evaluated using calibration curves, the C-index, and decision curve analysis (DCA). Finally, the model was validated using an internal validation method. Results The area under the curve for the ability of netrin-1 to independently predict BPS/IC diagnosis was 0.858 (p < 0.001), with a sensitivity of 85% and specificity of 82%. The predicted nomogram included three variables: age, CD3 + /CD4 + T lymphocyte ratio, and netrin-1. The C-index of this nomogram was 0.882, and the predicted values were highly consistent with the actual results in the calibration curve. In addition, the internally validated C-index of 0.870 confirms the high reliability of the model. DCA results show that the net patient benefit of the netrin-1 combined with other clinical parameters was higher than that of the single netrin-1 model. Conclusion Netrin-1 can be used as a diagnostic marker for BPS/IC and is associated with pain. The nomogram constructed by combining netrin-1 and clinical parameters was able to predict BPS/IC with great accuracy. In addition, Netrin-1 may also serve as a novel therapeutic target for BPS/IC.
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Affiliation(s)
- Xiaojie Ang
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Yufeng Jiang
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Zongqiang Cai
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Qi Zhou
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Miao Li
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Bin Zhang
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China
| | - Weiguo Chen
- Department of Urology, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, Jiangsu Province, China.
| | - Li-Hua Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Jiangsu, China.
| | - Xi Zhang
- Department of Urology, Kunshan Hospital of Traditional Chinese Medicine, No 189 Chao Yang Road, Kunshan, Jiangsu, China.
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Association between serum netrin-1, netrin-4 and risk of the acute coronary syndrome in patients with type 2 diabetes mellitus-A pilot study. Indian Heart J 2021; 74:72-75. [PMID: 34875255 PMCID: PMC8891007 DOI: 10.1016/j.ihj.2021.11.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 09/28/2021] [Accepted: 11/30/2021] [Indexed: 11/20/2022] Open
Abstract
The present study was done to assess the diagnostic utility of serum netrin-1 and netrin-4 for recognising the acute coronary syndrome (ACS) in type 2 diabetes mellitus (T2DM) patients. Forty-two T2DM patients with ACS (Cases) and forty-two T2DM patients without ACS (Controls) were compared. Cases had lower serum netrin-1 and netrin-4 levels than controls and were negatively associated with creatinine kinase-total, creatinine kinase-MB, troponin-T and H-FABP. ROC analysis showed that netrin-1 and netrin-4 had good sensitivity and specificity for ACS prediction in T2DM patients. Serum netrin-1 and netrin-4 levels might be considered complementary markers for ACS diagnosis in T2DM patients.
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Chen JTC, Schmidt L, Schürger C, Hankir MK, Krug SM, Rittner HL. Netrin-1 as a Multitarget Barrier Stabilizer in the Peripheral Nerve after Injury. Int J Mol Sci 2021; 22:ijms221810090. [PMID: 34576252 PMCID: PMC8466625 DOI: 10.3390/ijms221810090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/14/2021] [Accepted: 09/16/2021] [Indexed: 02/06/2023] Open
Abstract
The blood–nerve barrier and myelin barrier normally shield peripheral nerves from potentially harmful insults. They are broken down during nerve injury, which contributes to neuronal damage. Netrin-1 is a neuronal guidance protein with various established functions in the peripheral and central nervous systems; however, its role in regulating barrier integrity and pain processing after nerve injury is poorly understood. Here, we show that chronic constriction injury (CCI) in Wistar rats reduced netrin-1 protein and the netrin-1 receptor neogenin-1 (Neo1) in the sciatic nerve. Replacement of netrin-1 via systemic or local administration of the recombinant protein rescued injury-induced nociceptive hypersensitivity. This was prevented by siRNA-mediated knockdown of Neo1 in the sciatic nerve. Mechanistically, netrin-1 restored endothelial and myelin, but not perineural, barrier function as measured by fluorescent dye or fibrinogen penetration. Netrin-1 also reversed the decline in the tight junction proteins claudin-5 and claudin-19 in the sciatic nerve caused by CCI. Our findings emphasize the role of the endothelial and myelin barriers in pain processing after nerve damage and reveal that exogenous netrin-1 restores their function to mitigate CCI-induced hypersensitivity via Neo1. The netrin-1-neogenin-1 signaling pathway may thus represent a multi-target barrier protector for the treatment of neuropathic pain.
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Affiliation(s)
- Jeremy Tsung-Chieh Chen
- Center for Interdisciplinary Pain Medicine, Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, University Hospital of Würzburg, 97080 Würzburg, Germany; (J.T.-C.C.); (L.S.); (C.S.)
| | - Lea Schmidt
- Center for Interdisciplinary Pain Medicine, Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, University Hospital of Würzburg, 97080 Würzburg, Germany; (J.T.-C.C.); (L.S.); (C.S.)
| | - Christina Schürger
- Center for Interdisciplinary Pain Medicine, Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, University Hospital of Würzburg, 97080 Würzburg, Germany; (J.T.-C.C.); (L.S.); (C.S.)
| | - Mohammed K. Hankir
- Department of Experimental Surgery, University Hospital of Würzburg, 97080 Würzburg, Germany;
| | - Susanne M. Krug
- Clinical Physiology/Nutritional Medicine, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, 12203 Berlin, Germany;
| | - Heike L. Rittner
- Center for Interdisciplinary Pain Medicine, Department of Anesthesiology, Intensive Care, Emergency Medicine and Pain Therapy, University Hospital of Würzburg, 97080 Würzburg, Germany; (J.T.-C.C.); (L.S.); (C.S.)
- Correspondence: ; Tel.: +49-931-201-30251
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Fadel MM, Abdel Ghaffar FR, Zwain SK, Ibrahim HM, badr EAE. Serum netrin and VCAM-1 as biomarker for Egyptian patients with type IΙ diabetes mellitus. Biochem Biophys Rep 2021; 27:101045. [PMID: 34179515 PMCID: PMC8209750 DOI: 10.1016/j.bbrep.2021.101045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/30/2021] [Accepted: 06/06/2021] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the serum level of netrin and soluble vascular cell adhesion molecule 1 (VCAM-I) in patients with type IΙ diabetes mellitus (T2DM) and evaluate the association of their levels with the development of a diabetic complication. PATIENTS AND METHODS This study was carried out on type II diabetic patients with and without complications and healthy individuals served as controls. All subjects were submitted to the estimation of serum lipid profile, serum creatinine, urinary albumin/creatinine ratio (ACR), fasting blood glucose (FBG), glycated hemoglobin (HbA1c), visceral adiposity index (VAI), atherogenic index of plasma (AIP), lipid accumulation product (LAP) and detection of serum level of netrin1 and VCAM1. RESULTS Diabetic patients with complications had significantly higher serum levels of creatinine, ACR, cholesterol, Triglyceride, low-density lipoprotein, netrin1, and VCAM1 than diabetic patients without complications. Likewise, the level of VAI and LAP as markers of excessive body fat were significantly higher in diabetic patients with complications than diabetic patients without complications. The netrin1 and VCAM1 were a significant discriminator of T2DM renal complications with a sensitivity of 96%, 90%, and specificity of 82.7%, 91.3% respectively. CONCLUSION It can be concluded that serum netrin1 and VCAM1 correlated significantly with markers of excessive body fat, a renal complication in the patient with type 2 diabetes mellitus.
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Affiliation(s)
- Maher M. Fadel
- Unit of Immunology and Physiology Department of Zoology, Faculty of Science, Menoufia University, Egypt
| | - Faten R. Abdel Ghaffar
- Unit of Immunology and Physiology Department of Zoology, Faculty of Science, Menoufia University, Egypt
| | - Shimaa K. Zwain
- Department of Internal Medicine, Diabetes and Endocrinology, Faculty of Medicine, Menoufia University, Egypt
| | - Hany M. Ibrahim
- Unit of Immunology and Physiology Department of Zoology, Faculty of Science, Menoufia University, Egypt
| | - Eman AE. badr
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Menoufia University, Egypt
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The expression of Netrin-1 in the MIA-induced osteoarthritic temporomandibular joint in mice. Sci Rep 2021; 11:15695. [PMID: 34344989 PMCID: PMC8333414 DOI: 10.1038/s41598-021-95251-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/14/2021] [Indexed: 11/09/2022] Open
Abstract
Subchondral bone degeneration is the main pathological change during temporomandibular joint (TMJ) osteoarthritis (OA) development. Netrin-1, an axon-guiding factor, might play roles in OA development and pain. The purpose of this study was to investigate the expression of Netrin-1 in TMJ OA and its possible role in the progression of TMJ OA and pain. The synovial fluids of temporomandibular joint disorders (TMDs) patients were collected for Netrin-1 by enzyme linked immunosorbent assay (ELISA). TMJ OA model was built by MIA joint injection, and then the von Frey test, hematoxylin & eosin (H&E) staining, toluidine blue (TB) staining, immunohistochemical (IHC) staining and micro-CT were performed. After induction of osteoclast differentiation of raw264.7 cells, immunofluorescence (IF) was used to detect the Netrin-1 and its receptors on osteoclast membrane. The concentration of Netrin-1 increased in the synovial fluid of TMJ OA patients. After MIA injection to TMJ, the head withdrawal threshold (HWT) was significantly decreased. Microscopically, the structural disorder of subchondral bone was the most obvious at the 2nd week after MIA injection. In addition, Netrin-1 expression increased in the subchondral bone at the 2nd week after MIA injection. In vitro, the expressions of Netrin-1 and its receptor Unc5B were upregulated on the osteoclast membrane. Netrin-1 might be an important regulator during bone degeneration and pain in the process of TMJ OA.
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Elkholy RA, Younis RL, Allam AA, Hagag RY, Abdel Ghafar MT. Diagnostic efficacy of serum and urinary netrin-1 in the early detection of diabetic nephropathy. J Investig Med 2021; 69:1189-1195. [PMID: 33863755 DOI: 10.1136/jim-2021-001785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 12/19/2022]
Abstract
This study aimed to assess the diagnostic value of serum and urinary netrin-1 in patients with type 2 diabetes mellitus (T2DM) at different stages of diabetic nephropathy (DN) and to compare its efficacy of estimation in serum with that in the urine. This study was carried out on 135 patients with T2DM and 45 healthy subjects. The patients with diabetes were divided according to urinary albumin creatinine ratio (UACR) into: T2DM with normoalbuminuria, incipient DN with microalbuminuria, and overt DN with macroalbuminuria groups. Serum and urinary levels of netrin-1 were measured by ELISA. The mean levels of serum and urinary netrin-1 were significantly higher in the microalbuminuric and macroalbuminuric patients with DN than those in the normoalbuminuric patients with T2DM, with the highest values detected in macroalbuminuric patients with DN. Urinary netrin-1 level was significantly higher in the normoalbuminuric T2DM group than control group, whereas no significant difference existed regarding serum netrin-1 level. In T2DM groups, the urinary and serum netrin-1 correlated with each other and were independently related to fasting blood glucose, UACR, and estimated glomerular filtration rate. Receiver operating characteristic curve analysis showed that the area under the curve of urinary netrin-1 was 0.916 which is significantly higher than that of serum netrin-1 (0.812) for the detection of incipient DN and reached 0.938 on coestimation of both urinary and serum netrin-1. In conclusion, netrin-1 is a potential diagnostic marker for early detection of DN with its estimation in urine has higher accuracy than that of serum.
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Affiliation(s)
- Rasha A Elkholy
- Clinical Pathology, Tanta University Faculty of Medicine, Tanta, Egypt
| | - Reham L Younis
- Physiology, Tanta University Faculty of Medicine, Tanta, Egypt
| | - Alzahraa A Allam
- Internal Medicine, Tanta University Faculty of Medicine, Tanta, Egypt
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Zhang H, Vreeken D, Leuning DG, Bruikman CS, Junaid A, Stam W, de Bruin RG, Sol WMPJ, Rabelink TJ, van den Berg BM, van Zonneveld AJ, van Gils JM. Netrin-4 expression by human endothelial cells inhibits endothelial inflammation and senescence. Int J Biochem Cell Biol 2021; 134:105960. [PMID: 33636396 DOI: 10.1016/j.biocel.2021.105960] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 12/20/2022]
Abstract
Netrin-4, recognized in neural and vascular development, is highly expressed by mature endothelial cells. The function of this netrin-4 in vascular biology after development has remained unclear. We found that the expression of netrin-4 is highly regulated in endothelial cells and is important for quiescent healthy endothelium. Netrin-4 expression is upregulated in endothelial cells cultured under laminar flow conditions, while endothelial cells stimulated with tumor necrosis factor alpha resulted in decreased netrin-4 expression. Targeted reduction of netrin-4 in endothelial cells resulted in increased expression of vascular cell adhesion molecule 1 and intercellular adhesion molecule 1. Besides, these endothelial cells were more prone to monocyte adhesion and showed impaired barrier function, measured with electric cell-substrate impedance sensing, as well as in an 'organ-on-a-chip' microfluidic system. Importantly, endothelial cells with reduced levels of netrin-4 showed increased expression of the senescence-associated markers cyclin-dependent kinase inhibitor-1 and -2A, an increased cell size and decreased ability to proliferate. Consistent with the gene expression profile, netrin-4 reduction was accompanied with more senescent associated β-galactosidase activity, which could be rescued by adding netrin-4 protein. Finally, using human decellularized kidney extracellular matrix scaffolds, we found that pre-treatment of the scaffolds with netrin-4 increased numbers of endothelial cells adhering to the matrix, showing a pro-survival effect of netrin-4. Taken together, netrin-4 acts as an anti-senescence and anti-inflammation factor in endothelial cell function and our results provide insights as to maintain endothelial homeostasis and supporting vascular health.
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Affiliation(s)
- Huayu Zhang
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Dianne Vreeken
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Danielle G Leuning
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Caroline S Bruikman
- Amsterdam UMC, University of Amsterdam, Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, the Netherlands
| | - Abidemi Junaid
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Wendy Stam
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Ruben G de Bruin
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Wendy M P J Sol
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Ton J Rabelink
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Bernard M van den Berg
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Anton Jan van Zonneveld
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Janine M van Gils
- Einthoven Laboratory for Vascular and Regenerative Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands.
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15
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Lam HYP, Chen CC, Chen TTW, Chang KC, Wu WJ, Yang TH, Liang TR, Cheng PC, Peng SY. Mitochondrial dynamics in Angiostrongylus cantonensis-infected mouse brain. Parasitol Int 2020; 80:102231. [PMID: 33147498 DOI: 10.1016/j.parint.2020.102231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 11/15/2022]
Abstract
Angiostrongylus cantonensis is one of the most widespread parasites causing central nervous system (CNS) diseases in mammals. Since the mitochondrion is an essential cell organelle responsible for both physiological and pathological processes, its dysfunction might lead to inflammation and multiple disorders. In this study we aimed to investigate the changes in mitochondrial dynamics that occur in the mouse brain upon infection with A. cantonensis, using molecular biology techniques such as polymerase chain reaction (PCR), western blot analysis, transmission electron microscopy (TEM), and different staining methods. Here, we show that mouse brain infected with A. cantonensis exhibits altered mitochondrial dynamics, including fission, fusion, and biogenesis. Additionally, we demonstrate that caspases and B-cell lymphoma 2 (BCL-2) were significantly upregulated in A. cantonensis-infected brain. These results are indicative of the occurrence of apoptosis during A. cantonensis infection, which was further confirmed by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. These findings suggest the change in mitochondrial dynamics in A. cantonensis-infected brain, providing another point of view on the pathogenesis of meningoencephalitis caused by A. cantonensis infection.
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Affiliation(s)
- Ho Yin Pekkle Lam
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien 97004, Taiwan
| | - Cheng-Chi Chen
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan; Department of Laboratory Medicine, Hualien Hospital, Ministry of Health and Welfare, Hualien, Taiwan
| | - Tina Tu-Wen Chen
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Kai-Chih Chang
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Wen-Jui Wu
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ting-Hua Yang
- Department of Laboratory Medicine and Biotechnology, College of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Ting-Ruei Liang
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Po-Ching Cheng
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
| | - Shih-Yi Peng
- Department of Biochemistry, School of Medicine, Tzu Chi University, Hualien 97004, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien 97004, Taiwan.
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16
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Crespo-Garcia S, Reichhart N, Wigdahl J, Skosyrski S, Kociok N, Strauß O, Joussen AM. Lack of netrin-4 alters vascular remodeling in the retina. Graefes Arch Clin Exp Ophthalmol 2019; 257:2179-2184. [PMID: 31451908 DOI: 10.1007/s00417-019-04447-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/15/2019] [Accepted: 08/19/2019] [Indexed: 12/19/2022] Open
Abstract
PURPOSE Netrin-4 (NTN4) is a protein that plays an important role in the regulation of angiogenesis in the pathological retina. Some evidences show that it can also have a role in inflammation and vascular stability. We will explore these questions in vivo in the mature mouse retina. METHODS We created a NTN4 knockout that expresses EGFP in mononuclear phagocytes (CSFR1-positive cells) to track inflammation in vivo in the retina by scanning laser ophthalmoscopy (SLO). Fundus angiography permitted to study blood vessels. Retinal function was assessed with electroretinography (ERG). RESULTS Lack of NTN4 leads to an increased amount of amoeboid mononuclear phagocytes in the adult retina, and blood vessels displayed increased tortuosity when compared with the wildtype. Inner retina function also seemed affected in NTN4 null. Lack of NTN4 resulted in a higher persistence of hyaloid artery and spontaneous leakage in the adult retina. No differences were found regarding vessel bifurcation, vessel width, or vein/artery ratio. CONCLUSIONS These in vivo data show for the first time that lack of NTN4 induces changes in the retinal vascular phenotype in a non-pathological scenario. This evidence widens the role of NTN4 as a guidance cue in vascular remodeling.
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Affiliation(s)
- Sergio Crespo-Garcia
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany. .,Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, Montréal, Canada. .,Department of Biochemistry, Maisonneuve-Rosemont Hospital Research Centre, Université de Montréal, Montréal, Canada.
| | - Nadine Reichhart
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | | | - Sergej Skosyrski
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Norbert Kociok
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Olaf Strauß
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Antonia M Joussen
- Experimental Ophthalmology, Department of Ophthalmology, Charité - Universitätsmedizin Berlin, Freie Universität, Humboldt-University, the Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
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CTRP3 Protects against High Glucose-Induced Cell Injury in Human Umbilical Vein Endothelial Cells. Anal Cell Pathol (Amst) 2019; 2019:7405602. [PMID: 31428552 PMCID: PMC6681575 DOI: 10.1155/2019/7405602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/12/2019] [Indexed: 12/23/2022] Open
Abstract
Aims Inflammation was closely associated with diabetes-related endothelial dysfunction. C1q/tumor necrosis factor-related protein 3 (CTRP3) is a member of the CTRP family and can provide cardioprotection in many cardiovascular diseases via suppressing the production of inflammatory factors. However, the role of CTRP3 in high glucose- (HG-) related endothelial dysfunction remains unclear. This study evaluates the effects of CTRP3 on HG-induced cell inflammation and apoptosis. Materials and Methods To prevent high glucose-induced cell injury, human umbilical vein endothelial cells (HUVECs) were pretreated with recombinant CTRP3 for 1 hour followed by normal glucose (5.5 mmol/l) or high glucose (33 mmol/l) treatment. After that, cell apoptosis and inflammatory factors were determined. Results Our results demonstrated that CTRP3 mRNA and protein expression were significantly decreased after HG exposure in HUVECs. Recombinant human CTRP3 inhibited HG-induced accumulation of inflammatory factors and cell loss in HUVECs. CTRP3 treatment also increased the phosphorylation levels of protein kinase B (AKT/PKB) and the mammalian target of rapamycin (mTOR) in HUVECs. CTRP3 lost its inhibitory effects on HG-induced cell inflammation and apoptosis after AKT inhibition. Knockdown of endogenous CTRP3 in HUVECs resulted in increased inflammation and decreased cell viability in vitro. Conclusions Taken together, these findings indicated that CTRP3 treatment blocked the accumulation of inflammatory factors and cell loss in HUVECs after HG exposure through the activation of AKT-mTOR signaling pathway. Thus, CTRP3 may be a potential therapeutic drug for the prevention of diabetes-related endothelial dysfunction.
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18
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Baufeld A, Koczan D, Vanselow J. L-lactate induces specific genome wide alterations of gene expression in cultured bovine granulosa cells. BMC Genomics 2019; 20:273. [PMID: 30953450 PMCID: PMC6451254 DOI: 10.1186/s12864-019-5657-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/29/2019] [Indexed: 12/11/2022] Open
Abstract
Background Previously, we could show that L-lactate affects cultured bovine granulosa cells (GC) in a specific manner driving the cells into an early pre-ovulatory phenotype. Here we studied genome wide effects in L-lactate-treated GC to further elucidate the underlying mechanisms that are responsible for the L-lactate induced transformation. Cultured estrogen producing GC treated either with L-lactate or vehicle control were subjected to mRNA microarray analysis. Results The analysis revealed 487 differentially expressed clusters, representing 461 annotated genes. Of these, 333 (= 318 genes) were identified as up- and 154 (= 143 genes) as down-regulated. As the top up-regulated genes we detected TXNIP, H19 and AHSG as well as our previously established marker transcripts RGS2 and PTX3. The top down-regulated genes included VNN1, SLC27A2 and GFRA1, but also MYC and the GC marker transcript CYP19A1. Pathway analysis with differentially expressed genes indicated “cAMP-mediated signaling” and “Axon guidance signaling” among the most affected pathways. Furthermore, estradiol, progesterone and Vegf were identified as potential upstream regulators. An effector network analysis by IPA provided first hints that processes of “angiogenesis” and “vascularization”, but also “cell movement” appeared to be activated, whereas “organismal death” was predicted to be inhibited. Conclusions Our data clearly show that L-lactate alters gene expression in cultured bovine GC in a broad, but obviously specific manner. Pathway analysis revealed that the mode of L-lactate action in GC initiates angiogenic processes, but also migratory events like cell movement and axonal guidance signaling, thus supporting the transformation of GC into an early luteal phenotype. Electronic supplementary material The online version of this article (10.1186/s12864-019-5657-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anja Baufeld
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Dirk Koczan
- Institute for Immunology, University of Rostock, 18055, Rostock, Germany
| | - Jens Vanselow
- Institute of Reproductive Biology, Leibniz Institute for Farm Animal Biology (FBN), Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.
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19
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Downregulation of the Netrin-1 Receptor UNC5b Underlies Increased Placental Angiogenesis in Human Gestational Diabetes Mellitus. Int J Mol Sci 2019; 20:ijms20061408. [PMID: 30897795 PMCID: PMC6470495 DOI: 10.3390/ijms20061408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/28/2019] [Accepted: 01/31/2019] [Indexed: 11/17/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is a common metabolic disorder, defined by high blood glucose levels during pregnancy, which affects foetal and post-natal development. However, the cellular and molecular mechanisms of this detrimental condition are still poorly understood. A dysregulation in circulating angiogenic trophic factors, due to a dysfunction of the feto-placental unit, has been proposed to underlie GDM. But even the detailed study of canonical pro-angiogenic factors like vascular endothelial growth factor (VEGF) or basic Fibroblast Growth Factor (bFGF) has not been able to fully explain this detrimental condition during pregnancy. Netrins are non-canonical angiogenic ligands produced by the stroma have shown to be important in placental angiogenesis. In order to address the potential role of Netrin signalling in GDM, we tested the effect of Netrin-1, the most investigated member of the family, produced by Wharton's Jelly Mesenchymal Stem Cells (WJ-MSC), on Human Umbilical Vein Endothelial Cells (HUVEC) angiogenesis. WJ-MSC and HUVEC primary cell cultures from either healthy or GDM pregnancies were exposed to physiological (5 mM) or high (25 mM) d-glucose. Our results reveal that Netrin-1 is secreted by WJ-MSC from healthy and GDM and both expression and secretion of the ligand do not change with distinct experimental glucose conditions. Noteworthy, the expression of its anti-angiogenic receptor UNC5b is reduced in GDM HUVEC compared with its expression in healthy HUVEC, accounting for an increased Netrin-1 signalling in these cells. Consistently, in healthy HUVEC, UNC5b overexpression induces cell retraction of the sprouting phenotype.
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20
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Liu R, Luo Q, You W, Jin M. MicroRNA-106 attenuates hyperglycemia-induced vascular endothelial cell dysfunction by targeting HMGB1. Gene 2018; 677:142-148. [DOI: 10.1016/j.gene.2018.07.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/22/2018] [Accepted: 07/24/2018] [Indexed: 01/13/2023]
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21
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Lin Z, Jin J, Bai W, Li J, Shan X. Netrin-1 prevents the attachment of monocytes to endothelial cells via an anti-inflammatory effect. Mol Immunol 2018; 103:166-172. [PMID: 30290313 DOI: 10.1016/j.molimm.2018.08.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 07/31/2018] [Accepted: 08/19/2018] [Indexed: 01/30/2023]
Abstract
Netrin-1 is best known for its function guiding axon growth and migration. Netrin-1 has been shown to be involved in regulating cardiovascular function. In this study, we aimed to understand the biological role of Netrin-1 and its receptor Unc5b in endothelial cells. Our results demonstrate that Unc5b was moderately expressed in human aortic endothelial cells (HAECs) and TNF-α had a dose-dependent inhibitory effect on Unc5b level. Netrin-1 potently suppressed TNF-α-induced vascular adhesion molecules VCAM-1, ICAM-1, E-selectin and blocked the adhesion of monocytes to endothelial cells. Netrin-1 also suppressed TNF-α-induced production of cytokines including MCP-1, IL-1β, and IL-6. Importantly, Netrin-1 suppressed toll like receptor 4 (TLR4) expression and prevented NF-κB activation. Mechanistically, Netrin-1 reduced TNF-α-induced IKK and IκBα activation and prevented degradation of IκBα. Netrin-1 reduced nuclear accumulation of p65 and strongly suppressed NF-κB promoter activation. Collectively, our data demonstrated that signaling of Netrin-1 and its receptor Unc5b had an anti-inflammatory effect in endothelial cells. Netrin-1 signaling could be imperative for normal endothelial function.
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Affiliation(s)
- Zhaoheng Lin
- The People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, Yunnan Province, PR China.
| | - Jing Jin
- The People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, Yunnan Province, PR China
| | - Weirong Bai
- The People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, Yunnan Province, PR China
| | - Jiao Li
- The People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, Yunnan Province, PR China
| | - Xiyun Shan
- The People's Hospital of Xishuangbanna Dai Nationality Autonomous Prefecture, Jinghong, Yunnan Province, PR China
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22
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Zhang H, Vreeken D, Bruikman CS, van Zonneveld AJ, van Gils JM. Understanding netrins and semaphorins in mature endothelial cell biology. Pharmacol Res 2018; 137:1-10. [PMID: 30240825 DOI: 10.1016/j.phrs.2018.09.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/15/2018] [Accepted: 09/15/2018] [Indexed: 02/07/2023]
Abstract
Netrins and semaphorins are known as neuronal guidance molecules that are important to the facilitate patterning of the nervous system in embryonic development. In recent years, their function has been broadened to guide development in other systems, including the vascular system, where netrins and semaphorins critically contribute to the development of the vascular system. Evidence is accumulating that these guidance cues are also of critical importance in the biology of the mature endothelium by regulating the maintenance of endothelial quiescence. Here we review our current insights into the roles of netrins and semaphorins in endothelial cell survival, self-renewing, barrier function, response to wall shear stress, and control of the vascular tone. We also provide suggestions for future research into the functions of netrins and semaphorins in mature endothelial cell biology.
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Affiliation(s)
- Huayu Zhang
- Department of Internal Medicine, Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Dianne Vreeken
- Department of Internal Medicine, Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Caroline S Bruikman
- Amsterdam UMC, University of Amsterdam, Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Meibergdreef 9, Amsterdam, the Netherlands
| | - Anton Jan van Zonneveld
- Department of Internal Medicine, Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - Janine M van Gils
- Department of Internal Medicine, Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands.
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23
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Yimer EM, Zewdie KA, Hishe HZ. Netrin as a Novel Biomarker and Its Therapeutic Implications in Diabetes Mellitus and Diabetes-Associated Complications. J Diabetes Res 2018; 2018:8250521. [PMID: 30320139 PMCID: PMC6167572 DOI: 10.1155/2018/8250521] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/14/2018] [Accepted: 09/04/2018] [Indexed: 12/16/2022] Open
Abstract
Diabetes is a multifactorial metabolic syndrome and is one of the shared long-lasting illnesses globally. It is linked to long-term microvascular and macrovascular complications that contribute to disability, compromised quality of life, and reduction in lifespan, which eventually leads to death. This disease is not only incurring significant economic burden but also adversely affects the patients, caregivers, communities, and the society at large. The interruption of diabetes progress and its complications is a primary focus of scientific communities. In spite of various diagnostic modalities for diabetes, there is a limited marker to investigate the risk and progress of its complications. Netrin has recently received more attention as a biomarker of diabetes and a broader range of long-term complication. Therefore, the impetus of this review is to exhaustively discuss the role of Netrin as a potential biomarker and its therapeutic implication in diabetes and diverse sets of microvascular and macrovascular complications of diabetes. It also discourses the possible mechanisms of Netrin for the said pharmacological effect for a better understanding of the development and progression of diabetes and its complications in relation to this protein. It enables protective measures to be applied at the subclinical stage and the responses to preventive or therapeutic measures to be scrutinized. Besides, it might also facilitate the appraisal of novel therapeutic options for diabetes and various complications through modifying the endogenous Netrin and provide surrogate endpoints for intervention.
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Affiliation(s)
- Ebrahim M. Yimer
- Department of Pharmacology and Toxicology, College of Health Sciences, Mekelle University, Ethiopia
| | - Kaleab Alemayehu Zewdie
- Department of Pharmacology and Toxicology, College of Health Sciences, Mekelle University, Ethiopia
| | - Hailemichael Zeru Hishe
- Department of Pharmacology and Toxicology, College of Health Sciences, Mekelle University, Ethiopia
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24
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Yim J, Kim G, Lee BW, Kang ES, Cha BS, Kim JH, Cho JW, Lee SG, Lee YH. Relationship Between Circulating Netrin-1 Concentration, Impaired Fasting Glucose, and Newly Diagnosed Type 2 Diabetes. Front Endocrinol (Lausanne) 2018; 9:691. [PMID: 30532735 PMCID: PMC6265472 DOI: 10.3389/fendo.2018.00691] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 11/02/2018] [Indexed: 01/22/2023] Open
Abstract
Background: The protein netrin-1 has demonstrated anti-inflammatory, tissue regeneration, and immune modulation properties. Although inflammation is a major contributing factor in the development of insulin resistance and type 2 diabetes, little is known about a possible relationship between serum netrin-1 and type 2 diabetes. Therefore, we investigated the association between circulating levels of netrin-1 and glycometabolic parameters predictive of type 2 diabetes. Methods: Serum samples were collected from 41 normal controls, 85 subjects with impaired fasting glucose (IFG), and 92 subjects with newly diagnosed type 2 diabetes. Clinical and laboratory parameters were assessed and netrin-1 levels were measured by commercial enzyme-linked immunosorbent assay. Spearman correlation analyses and multivariable-adjusted regression analyses were conducted to examine the relationship between serum netrin-1 levels and glycometabolic parameters. Results: Serum netrin-1 levels in subjects with type 2 diabetes or IFG were significantly higher compared to normal controls (441.0, 436.6, and 275.9 pg/mL, respectively; P for trend < 0.001). Serum netrin-1 levels were significantly positively correlated with fasting glucose, HbA1c, and insulin resistance index (all Ps < 0.01). Serum netrin-1 levels were independently associated with IFG or type 2 diabetes (standardized β = 0.405, P < 0.001) after adjusting for covariates and potential confounders. In addition, the receiver operating characteristic (ROC) analysis showed that serum netrin-1 levels could identify the presence of IFG and type 2 diabetes with the area under the ROC curve (AUC) of 0.784 (P < 0.001). Conclusions: Our results suggest that elevated serum netrin-1 levels are significantly associated with the presence of IFG and type 2 diabetes.
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Affiliation(s)
- Jisook Yim
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Division of Special Chemistry, Green Cross Reference Laboratory, Yongin-si, South Korea
- Department of Laboratory Medicine, Veterans General Hospital, Incheon, South Korea
| | - Gyuri Kim
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Byung-Wan Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Eun Seok Kang
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Bong-Soo Cha
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Jeong-Ho Kim
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jin Won Cho
- Department of Systems Biology, Glycosylation Network Research Center, Yonsei University, Seoul, South Korea
| | - Sang-Guk Lee
- Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, South Korea
- *Correspondence: Sang-Guk Lee
| | - Yong-ho Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
- Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, South Korea
- Department of Systems Biology, Glycosylation Network Research Center, Yonsei University, Seoul, South Korea
- Yong-ho Lee
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