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Zhao L, Hu H, Zhang L, Liu Z, Huang Y, Liu Q, Jin L, Zhu M, Zhang L. Inflammation in diabetes complications: molecular mechanisms and therapeutic interventions. MedComm (Beijing) 2024; 5:e516. [PMID: 38617433 PMCID: PMC11014467 DOI: 10.1002/mco2.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 04/16/2024] Open
Abstract
At present, diabetes mellitus (DM) has been one of the most endangering healthy diseases. Current therapies contain controlling high blood sugar, reducing risk factors like obesity, hypertension, and so on; however, DM patients inevitably and eventually progress into different types of diabetes complications, resulting in poor quality of life. Unfortunately, the clear etiology and pathogenesis of diabetes complications have not been elucidated owing to intricate whole-body systems. The immune system was responsible to regulate homeostasis by triggering or resolving inflammatory response, indicating it may be necessary to diabetes complications. In fact, previous studies have been shown inflammation plays multifunctional roles in the pathogenesis of diabetes complications and is attracting attention to be the meaningful therapeutic strategy. To this end, this review systematically concluded the current studies over the relationships of susceptible diabetes complications (e.g., diabetic cardiomyopathy, diabetic retinopathy, diabetic peripheral neuropathy, and diabetic nephropathy) and inflammation, ranging from immune cell response, cytokines interaction to pathomechanism of organ injury. Besides, we also summarized various therapeutic strategies to improve diabetes complications by target inflammation from special remedies to conventional lifestyle changes. This review will offer a panoramic insight into the mechanisms of diabetes complications from an inflammatory perspective and also discuss contemporary clinical interventions.
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Affiliation(s)
- Lu Zhao
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Haoran Hu
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Lin Zhang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Zheting Liu
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Yunchao Huang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Qian Liu
- National Demonstration Center for Experimental Traditional Chinese Medicines Education (Zhejiang Chinese Medical University)College of Pharmaceutical Science, Zhejiang Chinese Medical UniversityHangzhouChina
| | - Liang Jin
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
- Shanghai Key Laboratory of Compound Chinese Medicines, The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia MedicaShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Meifei Zhu
- Department of Critical Care MedicineThe First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine)HangzhouChina
| | - Ling Zhang
- Department of Biology and MedicineCollege of Life Science, Zhejiang Chinese Medical UniversityHangzhouChina
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2
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Sinha N, Puri V, Kumar V, Nada R, Rastogi A, Jha V, Puri S. Urinary exosomal miRNA-663a shows variable expression in diabetic kidney disease patients with or without proteinuria. Sci Rep 2023; 13:4516. [PMID: 36934129 PMCID: PMC10024703 DOI: 10.1038/s41598-022-26558-4] [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: 04/28/2022] [Accepted: 12/16/2022] [Indexed: 03/20/2023] Open
Abstract
Heterogeneity in the Diabetic Kidney Disease (DKD) diagnosis makes its rational therapeutics challenging. Although albuminuria characterizes DKD, reports also indicate its prevalence among non-proteinuric. Recent understanding of disease progression has thus inclined the focus on proximal tubular cell damage besides the glomeruli. A non-invasive approach exploiting exosomal miRNA derived from human kidney proximal tubular cell line was, hence, targeted. Upon miRNA profiling, three miRNAs, namely, hsa-miR-155-5p, hsa-miR-28-3p, and hsa-miR-425-5p were found to be significantly upregulated, while hsa-miR-663a was downregulated under diabetic conditions. Among these, hsa-miR-663a downregulation was more pronounced in non-proteinuric than proteinuric DKD subjects and was thus selected for the bioinformatics study. Ingenuity Pathway Analysis (IPA) narrowed on to IL-8 signaling and inflammatory response as the most enriched 'canonical pathway' and 'disease pathway' respectively, during DKD. Further, the putative gene network generated from these enriched pathways revealed experimentally induced diabetes, renal tubular injury, and decreased levels of albumin as part of mapping under 'disease and function'. Genes target predictions and annotations by IPA reiterated miR-663a's role in the pathogenesis of DKD following tubular injury. Overall, the observations might offer an indirect reflection of the underlying mechanism between patients who develop proteinuria and non-proteinuria.
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Affiliation(s)
- Nisha Sinha
- Centre for Stem Cell Tissue Engineering and Biomedical Excellence, Panjab University, Chandigarh, India
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Veena Puri
- Centre for Systems Biology and Bioinformatics, Panjab University, Chandigarh, India
| | - Vivek Kumar
- Department of Nephrology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ritambhra Nada
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashu Rastogi
- Department of Endocrinology and Metabolism, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Vivekanand Jha
- The George Institute for Global Health, New Delhi, India.
| | - Sanjeev Puri
- Department of Biotechnology, University Institute of Engineering and Technology (UIET), Panjab University, Chandigarh, India.
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3
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Sun Y, Jin D, Zhang Z, Zhang Y, Zhang Y, Kang X, Jiang L, Tong X, Lian F. Effects of antioxidants on diabetic kidney diseases: mechanistic interpretations and clinical assessment. Chin Med 2023; 18:3. [PMID: 36624538 PMCID: PMC9827645 DOI: 10.1186/s13020-022-00700-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/09/2022] [Indexed: 01/10/2023] Open
Abstract
Diabetic kidney disease (DKD) is more prevalent with an increase in diabetes mellitus. Oxidative stress is a major factor in the occurrence and progression of DKD. Defending against oxidative stress and restoring antioxidant defense might be key to preventing and treating DKD. The purpose of this article is to provide an explanation of how oxidative stress affects DKD, conduct a systematic review and meta-analysis on DKD, and examine the effect of antioxidants on the disease. An analysis of 19 randomized controlled trials showed that the use of antioxidants could reduce UAE (albumin excretion rate) in patients with DKD (SMD: - 0.31; 95% CI [- 0.47, - 0.14], I2 = 0%), UACR (urine albumin/creatinine ratio) (SMD: - 0.60; 95% CI [- 1.15, - 0.06], I2 = 89%), glycosylated hemoglobin (hbA1c) (MD: - 0.61; 95% CI [- 1.00, - 0.21], I2 = 93%) and MDA (malonaldehyde) (SMD:-1.05; 95% CI [- 1.87, - 0.23], I2 = 94%), suggesting that antioxidants seemed to have therapeutic effects in patients with DKD, especially in reducing proteinuria and hbA1c. The purpose of this study is to provide new targets and ideas for drug research and clinical treatment of DKD.
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Affiliation(s)
- Yuting Sun
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
| | - De Jin
- grid.469513.c0000 0004 1764 518XHangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Ziwei Zhang
- grid.440665.50000 0004 1757 641XCollege of Chinese Medicine, Changchun University of Chinese Medicine, ChangchunJilin, 130117 China
| | - Yuehong Zhang
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
| | - Yuqing Zhang
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
| | - Xiaomin Kang
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
| | - Linlin Jiang
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
| | - Xiaolin Tong
- grid.464297.aInstitute of Metabolic Diseases, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengmei Lian
- grid.464297.aGuang’anmen Hospital, China Academy of Chinese Medical Sciences, Beixiange 5, Xicheng District, Beijing, 100053 China
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4
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Meagher P, Civitarese R, Lee X, Gordon M, Bugyei-Twum A, Desjardins JF, Kabir G, Zhang Y, Kosanam H, Visram A, Leong-Poi H, Advani A, Connelly KA. The Goto Kakizaki rat: Impact of age upon changes in cardiac and renal structure, function. PLoS One 2021; 16:e0252711. [PMID: 34166385 PMCID: PMC8224913 DOI: 10.1371/journal.pone.0252711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 05/20/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Patients with diabetes are at a high risk for developing cardiac dysfunction in the absence of coronary artery disease or hypertension, a condition known as diabetic cardiomyopathy. Contributing to heart failure is the presence of diabetic kidney disease. The Goto-Kakizaki (GK) rat is a non-obese, non-hypertensive model of type 2 diabetes that, like humans, shares a susceptibility locus on chromosome 10. Herein, we perform a detailed analysis of cardio-renal remodeling and response to renin angiotensin system blockade in GK rats to ascertain the validity of this model for further insights into disease pathogenesis. METHODS Study 1: Male GK rats along with age matched Wistar control animals underwent longitudinal assessment of cardiac and renal function for 32 weeks (total age 48 weeks). Animals underwent regular echocardiography every 4 weeks and at sacrifice, early (~24 weeks) and late (~48 weeks) timepoints, along with pressure volume loop analysis. Histological and molecular characteristics were determined using standard techniques. Study 2: the effect of renin angiotensin system (RAS) blockade upon cardiac and renal function was assessed in GK rats. Finally, proteomic studies were conducted in vivo and in vitro to identify novel pathways involved in remodeling responses. RESULTS GK rats developed hyperglycaemia by 12 weeks of age (p<0.01 c/w Wistar controls). Echocardiographic assessment of cardiac function demonstrated preserved systolic function by 48 weeks of age. Invasive studies demonstrated left ventricular hypertrophy, pulmonary congestion and impaired diastolic function. Renal function was preserved with evidence of hyperfiltration. Cardiac histological analysis demonstrated myocyte hypertrophy (p<0.05) with evidence of significant interstitial fibrosis (p<0.05). RT qPCR demonstrated activation of the fetal gene program, consistent with cellular hypertrophy. RAS blockade resulted in a reduction blood pressure(P<0.05) cardiac interstitial fibrosis (p<0.05) and activation of fetal gene program. No significant change on either systolic or diastolic function was observed, along with minimal impact upon renal structure or function. Proteomic studies demonstrated significant changes in proteins involved in oxidative phosp4horylation, mitochondrial dysfunction, beta-oxidation, and PI3K/Akt signalling (all p<0.05). Further, similar changes were observed in both LV samples from GK rats and H9C2 cells incubated in high glucose media. CONCLUSION By 48 weeks of age, the diabetic GK rat demonstrates evidence of preserved systolic function and impaired relaxation, along with cardiac hypertrophy, in the presence of hyperfiltration and elevated protein excretion. These findings suggest the GK rat demonstrates some, but not all features of diabetes induced "cardiorenal" syndrome. This has implications for the use of this model to assess preclinical strategies to treat cardiorenal disease.
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Affiliation(s)
- Patrick Meagher
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Robert Civitarese
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Xavier Lee
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Mark Gordon
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Antoinette Bugyei-Twum
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Jean-Francois Desjardins
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Golam Kabir
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Yanling Zhang
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Hari Kosanam
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
| | - Aylin Visram
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Howard Leong-Poi
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Institute of Medical Science, University of Toronto, Toronto, Canada
| | - Andrew Advani
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Institute of Medical Science, University of Toronto, Toronto, Canada
| | - Kim A. Connelly
- St. Michael’s Hospital, Keenan Research Centre, Li Ka Shing Knowledge Institute, Toronto, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
- Institute of Medical Science, University of Toronto, Toronto, Canada
- * E-mail:
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5
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Abstract
Epigenetic modifications have been implicated to mediate several complications of diabetes mellitus (DM), especially nephropathy and retinopathy. Our aim was to ascertain whether epigenetic alterations in whole blood discriminate among patients with DM with normal, delayed, and rapid gastric emptying (GE).
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6
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Song A, Jiang A, Xiong W, Zhang C. The Role of CXCL12 in Kidney Diseases: A Friend or Foe? KIDNEY DISEASES 2021; 7:176-185. [PMID: 34179113 DOI: 10.1159/000514913] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/28/2021] [Indexed: 12/25/2022]
Abstract
Background Chemokines are a family of proteins mainly mediating the homing and migration of various cells. The CXC chemokine CXCL12 is a member of low-weight-molecular chemokines. In the kidney, CXCL12 is pivotal for renal development and exerts a modulatory effect in kidney diseases under different etiologic settings by binding with CXC chemokine receptor 4 (CXCR4) or CXC chemokine receptor 7 (CXCR7). Besides, CXCL12 also exerts homeostasis influence in diverse physical conditions and various pathological situations. Thus, we conclude the complicated relationship between CXCL12 and kidney diseases in this review. Summary In renal development, CXCL12 contributes a lot to nephrogenesis and the formation of renal vasculature via correlating with CXCR4. CXCL12 also plays an essential role in renal recovery from acute kidney injury. However, the CXCL12/CXCR4 axis plays a dual regulatory role in the initiation and development of diabetic kidney disease as well as chronic allogeneic nephropathy after kidney transplantation through dialectical consideration. Additionally, the CXCL12/CXCR4 link is considered as a new risk factor for lupus nephritis and renal cell carcinoma. Key Messages Plenty of studies have presented the influence of CXCL12 and the relation with corresponding receptors in diverse biological and pathological statuses. Simultaneously, some drugs and antagonists targeting CXCL12/CXCR4 axis effectively treat various kidney diseases. However, more researches are needed to explore thorough influence and mechanisms, providing more cues for clinical treatments.
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Affiliation(s)
- Anni Song
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Anni Jiang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Xiong
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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7
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Pathogenic Pathways and Therapeutic Approaches Targeting Inflammation in Diabetic Nephropathy. Int J Mol Sci 2020; 21:ijms21113798. [PMID: 32471207 PMCID: PMC7312633 DOI: 10.3390/ijms21113798] [Citation(s) in RCA: 143] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/20/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
Diabetic nephropathy (DN) is associated with an increased morbidity and mortality, resulting in elevated cost for public health systems. DN is the main cause of chronic kidney disease (CKD) and its incidence increases the number of patients that develop the end-stage renal disease (ESRD). There are growing epidemiological and preclinical evidence about the close relationship between inflammatory response and the occurrence and progression of DN. Several anti-inflammatory strategies targeting specific inflammatory mediators (cell adhesion molecules, chemokines and cytokines) and intracellular signaling pathways have shown beneficial effects in experimental models of DN, decreasing proteinuria and renal lesions. A number of inflammatory molecules have been shown useful to identify diabetic patients at high risk of developing renal complications. In this review, we focus on the key role of inflammation in the genesis and progression of DN, with a special interest in effector molecules and activated intracellular pathways leading to renal damage, as well as a comprehensive update of new therapeutic strategies targeting inflammation to prevent and/or retard renal injury.
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8
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The Role of Chemokines and Chemokine Receptors in Diabetic Nephropathy. Int J Mol Sci 2020; 21:ijms21093172. [PMID: 32365893 PMCID: PMC7246426 DOI: 10.3390/ijms21093172] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Kidney function decline is one of the complications of diabetes mellitus and may be indicated as diabetic nephropathy (DN). DN is a chronic inflammatory disease featuring proteinuria and a decreasing glomerular filtration rate. Despite several therapeutic options being currently available, DN is still the major cause of end-stage renal disease. Accordingly, widespread innovation is needed to improve outcomes in patients with DN. Chemokines and their receptors are critically involved in the inflammatory progression in the development of DN. Although recent studies have shown multiple pathways related to the chemokine system, the specific and direct effects of chemokines and their receptors remain unclear. In this review, we provide an overview of the potential role and mechanism of chemokine systems in DN proposed in recent years. Chemokine system-related mechanisms may provide potential therapeutic targets in DN.
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Liu Y, Feng Q, Miao J, Wu Q, Zhou S, Shen W, Feng Y, Hou FF, Liu Y, Zhou L. C-X-C motif chemokine receptor 4 aggravates renal fibrosis through activating JAK/STAT/GSK3β/β-catenin pathway. J Cell Mol Med 2020; 24:3837-3855. [PMID: 32119183 PMCID: PMC7171406 DOI: 10.1111/jcmm.14973] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/18/2019] [Accepted: 12/24/2019] [Indexed: 12/13/2022] Open
Abstract
Chronic kidney disease (CKD) has a high prevalence worldwide. Renal fibrosis is the common pathological feature in various types of CKD. However, the underlying mechanisms are not determined. Here, we adopted different CKD mouse models and cultured human proximal tubular cell line (HKC-8) to examine the expression of C-X-C motif chemokine receptor 4 (CXCR4) and β-catenin signalling, as well as their relationship in renal fibrosis. In CKD mice and humans with a variety of nephropathies, CXCR4 was dramatically up-regulated in tubules, with a concomitant activation of β-catenin. CXCR4 expression level was positively correlated with the expression of β-catenin target MMP-7. AMD3100, a CXCR4 receptor blocker, and gene knockdown of CXCR4 significantly inhibited the activation of JAK/STAT and β-catenin signalling, protected against tubular injury and renal fibrosis. CXCR4-induced renal fibrosis was inhibited by treatment with ICG-001, an inhibitor of β-catenin signalling. In HKC-8 cells, overexpression of CXCR4 induced activation of β-catenin and deteriorated cell injury. These effects were inhibited by ICG-001. Stromal cell-derived factor (SDF)-1α, the ligand of CXCR4, stimulated the activation of JAK2/STAT3 and JAK3/STAT6 signalling in HKC-8 cells. Overexpression of STAT3 or STAT6 decreased the abundance of GSK3β mRNA. Silencing of STAT3 or STAT6 significantly blocked SDF-1α-induced activation of β-catenin and fibrotic lesions. These results uncover a novel mechanistic linkage between CXCR4 and β-catenin activation in renal fibrosis in association with JAK/STAT/GSK3β pathway. Our studies also suggest that targeted inhibition of CXCR4 may provide better therapeutic effects on renal fibrosis by inhibiting multiple downstream signalling cascades.
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Affiliation(s)
- Yahong Liu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Division of Nephrology, The Second Affiliated Hospital of Xingtai Medical College, Xingtai, China
| | - Qijian Feng
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinhua Miao
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qinyu Wu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shan Zhou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weiwei Shen
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanqiu Feng
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Fan Fan Hou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Youhua Liu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lili Zhou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Logun MT, Wynens KE, Simchick G, Zhao W, Mao L, Zhao Q, Mukherjee S, Brat DJ, Karumbaiah L. Surfen-mediated blockade of extratumoral chondroitin sulfate glycosaminoglycans inhibits glioblastoma invasion. FASEB J 2019; 33:11973-11992. [PMID: 31398290 DOI: 10.1096/fj.201802610rr] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Invasive spread of glioblastoma (GBM) is linked to changes in chondroitin sulfate (CS) proteoglycan (CSPG)-associated sulfated glycosaminoglycans (GAGs) that are selectively up-regulated in the tumor microenvironment (TME). We hypothesized that inhibiting CS-GAG signaling in the TME would stem GBM invasion. Rat F98 GBM cells demonstrated enhanced preferential cell invasion into oversulfated 3-dimensional composite of CS-A and CS-E [4- and 4,6-sulfated CS-GAG (COMP)] matrices compared with monosulfated (4-sulfated) and unsulfated hyaluronic acid matrices in microfluidics-based choice assays, which is likely influenced by differential GAG receptor binding specificities. Both F98 and human patient-derived glioma stem cells (GSCs) demonstrated a high degree of colocalization of the GSC marker CD133 and CSPGs. The small molecule sulfated GAG antagonist bis-2-methyl-4-amino-quinolyl-6-carbamide (surfen) reduced invasion and focal adhesions in F98 cells encapsulated in COMP matrices and blocked CD133 and antichondroitin sulfate antibody (CS-56) detection of respective antigens in F98 cells and human GSCs. Surfen-treated F98 cells down-regulated CSPG-binding receptor transcripts and protein, as well as total and activated ERK and protein kinase B. Lastly, rats induced with frontal lobe tumors and treated with a single intratumoral dose of surfen demonstrated reduced tumor burden and spread compared with untreated controls. These results present a first demonstration of surfen as an inhibitor of sulfated GAG signaling to stem GBM invasion.-Logun, M. T., Wynens, K. E., Simchick, G., Zhao, W., Mao, L., Zhao, Q., Mukherjee, S., Brat, D. J., Karumbaiah, L. Surfen-mediated blockade of extratumoral chondroitin sulfate glycosaminoglycans inhibits glioblastoma invasion.
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Affiliation(s)
- Meghan T Logun
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA.,Division of Neuroscience, Biomedical and Health Sciences Institute, University of Georgia, Athens, Georgia, USA.,Edgar L. Rhodes Center for Animal and Dairy Science, College of Agriculture and Environmental Sciences, University of Georgia, Athens, Georgia, USA
| | - Kallie E Wynens
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA
| | - Gregory Simchick
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia, USA
| | - Wujun Zhao
- Department of Chemistry, University of Georgia, Athens, Georgia, USA
| | - Leidong Mao
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA.,School of Electrical and Computer Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Qun Zhao
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA.,Department of Physics and Astronomy, University of Georgia, Athens, Georgia, USA
| | - Subhas Mukherjee
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Daniel J Brat
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Lohitash Karumbaiah
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA.,Division of Neuroscience, Biomedical and Health Sciences Institute, University of Georgia, Athens, Georgia, USA.,Edgar L. Rhodes Center for Animal and Dairy Science, College of Agriculture and Environmental Sciences, University of Georgia, Athens, Georgia, USA
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11
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Uematsu M, Nakamura T, Yoshizaki T, Watanabe Y, Deyama J, Watanabe K, Kobayashi T, Fujioka D, Saito Y, Nakamura K, Kawabata K, Obata JE, Kugiyama K. High levels of stromal cell-derived factor-1α predict short-term progression of renal dysfunction in patients with coronary artery disease. Clin Exp Nephrol 2019; 23:920-927. [PMID: 30830550 DOI: 10.1007/s10157-019-01722-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 02/25/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Stromal cell-derived factor-1α (SDF-1α) is an inflammatory chemokine that plays a critical role in cardiovascular disease. Although persistent inflammation causes renal dysfunction, it remains unclear whether SDF-1α is related to progression of chronic kidney disease. This study examined whether high levels of SDF-1α are associated with future declines in renal function in patients with coronary artery disease (CAD). METHODS Plasma levels of SDF-1α in the peripheral blood were measured by enzyme-linked immunosorbent assay in 344 patients with CAD. All patients were followed for 24 months or until the occurrence of renal dysfunction, defined as ≥ 25% decrease in estimated glomerular filtration rate (eGFR) from baseline. RESULTS During the follow-up period, 36 patients developed renal dysfunction. Multivariate logistic regression analysis showed that high plasma levels of SDF-1α were significantly associated with progression of renal dysfunction (odds ratio 1.65; 95% confidence intervals 1.07-2.35, p = 0.03). In addition, high plasma levels of SDF-1α had a significant incremental effect on the predictive value of known risk factors for renal dysfunction in analyses using net reclassification improvement (NRI) and integrated discrimination improvement (IDI) (NRI 0.58 [0.07-1.02], p < 0.01; and IDI 0.030 [0.001-0.085], p = 0.02). CONCLUSION High plasma levels of SDF-1α were associated with the short-term decline of eGFR in patients with CAD. Thus, SDF-1α may be useful for predicting the progression of renal dysfunction in patients with CAD.
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Affiliation(s)
- Manabu Uematsu
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan.
| | - Takamitsu Nakamura
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Toru Yoshizaki
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Yosuke Watanabe
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Juntaro Deyama
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Kazuhiro Watanabe
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Tsuyoshi Kobayashi
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Daisuke Fujioka
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Yukio Saito
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Kazuto Nakamura
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Kenichi Kawabata
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Jun-Ei Obata
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
| | - Kiyotaka Kugiyama
- Department of Internal Medicine II, Faculty of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, 409-3898, Japan
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12
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Perco P, Mayer G. Endogenous factors and mechanisms of renoprotection and renal repair. Eur J Clin Invest 2018; 48:e12914. [PMID: 29460289 DOI: 10.1111/eci.12914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/14/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND An imbalance between renal damaging molecules and nephroprotective factors contributes to the development and progression of kidney diseases. Molecules with renoprotective properties might serve as biomarkers, drug targets as well as therapeutic options themselves. MATERIALS AND METHODS For this review, we generated a set of renoprotective factors based on GeneRIF (Gene Reference Into Function) information available at NCBI's PubMed. The final set of manually curated renoprotective factors was investigated with respect to tissue-specific expression, subcellular location distribution and involvement in biological processes using information from gene ontology as well as information from protein-protein interaction databases. We furthermore investigated the factors in the context of clinical trials of renal disease and diabetes. RESULTS One hundred and ninety-three factors could be retrieved from the set of GeneRIFs on nephroprotection and renal repair. A large number of factors were either secretory molecules or plasma membrane receptors. Next to the elevated expression in renal tissue, also higher expression in connective tissue and pancreas was observed. The proteins could be assigned to the broad functional categories of cell proliferation and signalling, inflammatory response, apoptosis, blood pressure regulation as well as cellular response to different kinds of insults such as hypoxia, heat or mechanical stimulus. Eight factors are studied in clinical trials with additional ones being targeted by compounds. CONCLUSIONS We have generated a set of renoprotective factors based on the literature information, which was functionally annotated and evaluated with respect to tested compounds in kidney disease and diabetes clinical trials.
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Affiliation(s)
- Paul Perco
- Department of Internal Medicine IV, Medical University of Innsbruck, Innsbruck, Austria
| | - Gert Mayer
- Department of Internal Medicine IV, Medical University of Innsbruck, Innsbruck, Austria
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13
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Fadini GP, Avogaro A. How to interpret the role of SDF-1α on diabetic complications during therapy with DPP-4 inhibitors. Cardiovasc Diabetol 2018; 17:22. [PMID: 29394900 PMCID: PMC5796514 DOI: 10.1186/s12933-018-0668-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 01/14/2023] Open
Affiliation(s)
- Gian Paolo Fadini
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy.
| | - Angelo Avogaro
- Department of Medicine, University of Padova, Via Giustiniani 2, 35128, Padua, Italy
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14
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Effects of incretin-based therapies on renal function. Eur J Pharmacol 2018; 818:103-109. [DOI: 10.1016/j.ejphar.2017.10.049] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/03/2017] [Accepted: 10/20/2017] [Indexed: 01/14/2023]
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15
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Tong F, Liu S, Yan B, Li X, Ruan S, Yang S. Quercetin nanoparticle complex attenuated diabetic nephropathy via regulating the expression level of ICAM-1 on endothelium. Int J Nanomedicine 2017; 12:7799-7813. [PMID: 29123394 PMCID: PMC5661459 DOI: 10.2147/ijn.s146978] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The purpose of the study was to reveal the therapeutic effect of quercetin (QUE) nanoparticle complex on diabetic nephropathy (DN) by regulating the expression of intercellular adhesion molecular-1 (ICAM-1) on endothelium as compared to free QUE. QUE 10 mg/kg as a single abdominal subcutaneous injection daily for 8 weeks continuously in diabetic rats and 10 mg/kg QUE nanoparticle complex as a single abdominal subcutaneous injection every 5 days, continuously administered for 8 weeks to diabetic rats. Blood and left kidneys were collected; pathological change of kidney, renal function, oxidative stress level, blood glucose level, serum lipid, urine protein, and albumin/creatinine ratio were measured; and neutrophil adhesion, ICAM-1 expression, and CD11b+ cells infiltration were observed. Both QUE and QUE nanoparticle complex preconditioning ameliorated the pathological damage of kidney and improved renal function, alleviated renal oxidative stress injury, restricted inflammatory cells infiltration, and downregulated the ICAM-1 expression as compared to DN group, while QUE nanoparticle complex significantly alleviated this effect.
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Affiliation(s)
- Fei Tong
- Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen.,Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, Zhejiang
| | - Suhuan Liu
- Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen
| | - Bing Yan
- Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen
| | - Xuejun Li
- Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen
| | - Shiwei Ruan
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, People's Republic of China
| | - Shuyu Yang
- Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen
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16
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Cui S, Zhu Y, Du J, Khan MN, Wang B, Wei J, Cheng JW, Gordon JR, Mu Y, Li F. CXCL8 Antagonist Improves Diabetic Nephropathy in Male Mice With Diabetes and Attenuates High Glucose-Induced Mesangial Injury. Endocrinology 2017; 158:1671-1684. [PMID: 28387853 DOI: 10.1210/en.2016-1781] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/31/2017] [Indexed: 12/20/2022]
Abstract
Inflammation is recognized as a crucial contribution to diabetic nephropathy (DN). CXCL8 binds to its CXC chemokine receptors (CXCR1 and CXCR2) for recruiting neutrophil infiltration and initiates tissue inflammation. Therefore, we explored the effect of CXCR1 and CXCR2 inhibition on DN. This was achieved by CXCL8(3-72)K11R/G31P (G31P), an antagonist of CXCL8 that has exhibited therapeutic efficacy in inflammatory diseases and malignancies. In this study, we found that renal leukocyte accumulation and rapid increases of CXCL8 occurred in high-fat diet/streptozocin-induced diabetic mice. G31P effectively reduced urine volume, urine albumin/creatinine ratio, blood urea nitrogen, and creatinine clearance rate in mice with diabetes. In addition, renal histopathologic changes including mesangial expansion, glomerulosclerosis, and extracellular matrix deposition were partially moderated in G31P-treated diabetic mice. Furthermore, G31P attenuated renal inflammation and renal fibrosis of diabetic mice by inhibiting proinflammatory and profibrotic elements. G31P also inhibited high glucose-induced inflammatory and fibrotic factor upregulation in human renal mesangial cells. At the molecular level, G31P inhibited activation of CXCR1/2 downstream signaling JAK2/STAT3 and ERK1/2 pathways in in vitro and in vivo experiments. Our results suggest blockade of CXCR1/2 by G31P could confer renoprotective effects that offer potential therapeutic opportunities in DN.
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Affiliation(s)
- Siyuan Cui
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Yujie Zhu
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jianling Du
- Department of Endocrinology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, Liaoning, China
| | - Muhammad Noman Khan
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Bing Wang
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jing Wei
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
| | - Jya-Wei Cheng
- Institute of Biotechnology, Department of Life Science, National Tsing Hua University, 999079 Hsinchu, Taiwan
| | - John R Gordon
- Division of Respirology, Critical Care and Sleep Medicine, Royal University Hospital, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E5, Canada
| | - Yutian Mu
- College of Biology Science, China Agricultural University, Beijing 100000, China
| | - Fang Li
- Department of Immunology, Dalian Medical University, Dalian 116011, Liaoning, China
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Long noncoding RNA MALAT1 regulates renal tubular epithelial pyroptosis by modulated miR-23c targeting of ELAVL1 in diabetic nephropathy. Exp Cell Res 2017; 350:327-335. [DOI: 10.1016/j.yexcr.2016.12.006] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/23/2016] [Accepted: 12/07/2016] [Indexed: 11/22/2022]
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18
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Guan XF, Chen QJ, Zuo XC, Guo R, Peng XD, Wang JL, Yin WJ, Li DY. Contrast Media-Induced Renal Inflammation Is Mediated Through HMGB1 and Its Receptors in Human Tubular Cells. DNA Cell Biol 2017; 36:67-76. [PMID: 27828735 DOI: 10.1089/dna.2016.3463] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Xiao-feng Guan
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Qing-jie Chen
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Xiao-cong Zuo
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Ren Guo
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Xiang-dong Peng
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Jiang-lin Wang
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Wen-jun Yin
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Dai-Yang Li
- Clinical Pharmacy and Pharmacology Research Institute, The Third Xiangya Hospital of Central South University, Changsha, People's Republic of China
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Takashima S, Fujita H, Fujishima H, Shimizu T, Sato T, Morii T, Tsukiyama K, Narita T, Takahashi T, Drucker DJ, Seino Y, Yamada Y. Stromal cell-derived factor-1 is upregulated by dipeptidyl peptidase-4 inhibition and has protective roles in progressive diabetic nephropathy. Kidney Int 2016; 90:783-96. [PMID: 27475229 DOI: 10.1016/j.kint.2016.06.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 05/31/2016] [Accepted: 06/02/2016] [Indexed: 12/20/2022]
Abstract
The role of stromal cell-derived factor-1 (SDF-1) in the pathogenesis of diabetic nephropathy and its modification by dipeptidyl peptidase-4 (DPP-4) inhibition are uncertain. Therefore, we studied this independent of glucagon-like peptide-1 receptor (GLP-1R) signaling using two Akita diabetic mouse models, the diabetic-resistant C57BL/6-Akita and diabetic-prone KK/Ta-Akita. Increased SDF-1 expression was found in glomerular podocytes and distal nephrons in the diabetic-prone mice, but not in kidneys from diabetic-resistant mice. The DPP-4 inhibitor linagliptin, but not the GLP-1R agonist liraglutide, further augmented renal SDF-1 expression in both Glp1r(+/+) and Glp1r(-/-) diabetic-prone mice. Along with upregulation of renal SDF-1 expression, the progression of albuminuria, glomerulosclerosis, periglomerular fibrosis, podocyte loss, and renal oxidative stress was suppressed in linagliptin-treated Glp1r(+/+) diabetic-prone mice. Linagliptin treatment increased urinary sodium excretion and attenuated the increase in glomerular filtration rate which reflects glomerular hypertension and hyperfiltration. In contrast, selective SDF-1 receptor blockade with AMD3100 reduced urinary sodium excretion and aggravated glomerular hypertension in the Glp1r(+/+) diabetic-prone mice. Thus, DPP-4 inhibition, independent of GLP-1R signaling, contributes to protection of the diabetic kidney through SDF-1-dependent antioxidative and antifibrotic effects and amelioration of adverse renal hemodynamics.
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Affiliation(s)
- Satoru Takashima
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Hiroki Fujita
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan.
| | - Hiromi Fujishima
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Tatsunori Shimizu
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Takehiro Sato
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Tsukasa Morii
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Katsushi Tsukiyama
- Division of Metabolism and Clinical Nutrition Science, Akita University Graduate School of Medicine, Akita, Japan
| | - Takuma Narita
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
| | - Takamune Takahashi
- Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Daniel J Drucker
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada; The Lunenfeld-Tanenbaum Research Institute, Mt. Sinai Hospital, Toronto, Ontario, Canada
| | - Yutaka Seino
- Kansai Electric Power Medical Research Institute, Osaka, Japan
| | - Yuichiro Yamada
- Division of Endocrinology, Metabolism and Geriatric Medicine, Akita University Graduate School of Medicine, Akita, Japan
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20
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Zhou L, Xu DY, Sha WG, Shen L, Lu GY, Yin X. Long non-coding MIAT mediates high glucose-induced renal tubular epithelial injury. Biochem Biophys Res Commun 2015; 468:726-32. [PMID: 26551455 DOI: 10.1016/j.bbrc.2015.11.023] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/03/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Long non-coding RNAs (lncRNAs) constitute a novel class of non-coding RNAs that take part in occurrence and development of diabetes complication via regulating gene expression. However, litter is known about lncRNAs in the setting of diabetes induced nephropathy. The aim of this study was to examine whether lncRNA-myocardial infarction-associated transcript (MIAT) is involved in diabetes induced renal tubules injury. METHODS Adult Wister rats were randomly assigned to receive intraperitoneal STZ (65 mg/kg) to induce diabetes. Rats treated with equal volume of citrate buffer were as control. Renal function was evaluated by analysis of serum creatinine and blood urea nitrogen (BUN) every four weeks after STZ administration. Also tubules of all rats were collected for determination of MIAT and Nrf2 level at the corresponding phase. The in vitro high glucose-triggered human renal tubular epithelial cell line (HK-2) was used to explore the mechanism underling MIAT regulated high glucose-induced tubular damage. RESULTS In diabetic rats, MIAT showed the lower level and its expression is negatively correlated with serum creatinine and BUN. Consistent with diabetic rat, exposed to high glucose, HK-2 cells expressed lower level of MIAT and Nrf2, and also showed reduction in cell viability. By pcDNA-MIAT plasmid transfection, we observed that MIAT overexpression reversed inhibitory action of Nrf2 expression by high glucose. Moreover, the data of RNA pull-down and RIP showed that MIAT controlled Nrf2 cellular through enhancing Nrf2 stability, which was confirmed by CHX and MG132 administration. Inhibitory effect of cell viability by silencing MIAT was also reversed by Nrf2 overexpression. CONCLUSION In summary, our data suggested that MIAT/Nrf2 served as an important signaling pathway for high glucose induced renal tubular epithelial injury.
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Affiliation(s)
- Ling Zhou
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - De-yu Xu
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Wen-gang Sha
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Lei Shen
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Guo-yuan Lu
- Department of Nephrology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Xia Yin
- Department of Endocrinology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
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