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Dørflinger GH, Holt CB, Thiel S, Bech JN, Østergaard JA, Bjerre M. Mannan-Binding Lectin Is Associated with Inflammation and Kidney Damage in a Mouse Model of Type 2 Diabetes. Int J Mol Sci 2024; 25:7204. [PMID: 39000309 PMCID: PMC11241296 DOI: 10.3390/ijms25137204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/23/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
Autoreactivity of the complement system may escalate the development of diabetic nephropathy. We used the BTBR OB mouse model of type 2 diabetes to investigate the role of the complement factor mannan-binding lectin (MBL) in diabetic nephropathy. Female BTBR OB mice (n = 30) and BTBR non-diabetic WT mice (n = 30) were included. Plasma samples (weeks 12 and 21) and urine samples (week 19) were analyzed for MBL, C3, C3-fragments, SAA3, and markers for renal function. Renal tissue sections were analyzed for fibrosis, inflammation, and complement deposition. The renal cortex was analyzed for gene expression (complement, inflammation, and fibrosis), and isolated glomerular cells were investigated for MBL protein. Human vascular endothelial cells cultured under normo- and hyperglycemic conditions were analyzed by flow cytometry. We found that the OB mice had elevated plasma and urine concentrations of MBL-C (p < 0.0001 and p < 0.001, respectively) and higher plasma C3 levels (p < 0.001) compared to WT mice. Renal cryosections from OB mice showed increased MBL-C and C4 deposition in the glomeruli and increased macrophage infiltration (p = 0.002). Isolated glomeruli revealed significantly higher MBL protein levels (p < 0.001) compared to the OB and WT mice, and no renal MBL expression was detected. We report that chronic inflammation plays an important role in the development of DN through the binding of MBL to hyperglycemia-exposed renal cells.
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Affiliation(s)
- Gry H. Dørflinger
- Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark; (G.H.D.); (C.B.H.)
- Department of Internal Medicine, Regional Hospital Gødstrup, 7400 Herning, Denmark;
| | - Charlotte B. Holt
- Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark; (G.H.D.); (C.B.H.)
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, 8200 Aarhus, Denmark;
| | - Steffen Thiel
- Department of Biomedicine, Aarhus University, 8200 Aarhus, Denmark;
| | - Jesper N. Bech
- Department of Internal Medicine, Regional Hospital Gødstrup, 7400 Herning, Denmark;
- University Clinic in Nephrology and Hypertension, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Jakob A. Østergaard
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, 8200 Aarhus, Denmark;
- Steno Diabetes Center Aarhus, 8200 Aarhus, Denmark
| | - Mette Bjerre
- Medical/Steno Aarhus Research Laboratory, Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark; (G.H.D.); (C.B.H.)
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Kiyanpour F, Abedi M, Gheisari Y. miR-802-5p is a key regulator in diabetic kidney disease. JOURNAL OF RESEARCH IN MEDICAL SCIENCES : THE OFFICIAL JOURNAL OF ISFAHAN UNIVERSITY OF MEDICAL SCIENCES 2023; 28:43. [PMID: 37405075 PMCID: PMC10315408 DOI: 10.4103/jrms.jrms_702_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/22/2023] [Accepted: 02/06/2023] [Indexed: 07/06/2023]
Abstract
Background Diabetic kidney disease has substantial burden and limited therapeutic options. An inadequate understanding of the complex gene regulatory circuits underlying this disorder contributes to the insufficiency of current treatment strategies. MicroRNAs (miRNAs) play a crucial role as regulators of functionally related gene networks. Previously, mmu-mir-802-5p was identified as the sole dysregulated miRNA in both the kidney cortex and medulla of diabetic mice. This study aims to investigate the role of miR-802-5p in diabetic kidney disease. Materials and Methods The validated and predicted targets of miR-802-5p were identified using miRTarBase and TargetScan databases, respectively. The functional role of this miRNA was inferred using gene ontology enrichment analysis. The expression of miR-802-5p and its selected targets were assessed by qPCR. The expression of the angiotensin receptor (Agtr1a) was measured by ELISA. Results miR-802-5p exhibited dysregulation in both the kidney cortex and medulla of diabetic mice, with two- and four-fold over-expressions, respectively. Functional enrichment analysis of the validated and predicted targets of miR-802-5p revealed its involvement in the renin-angiotensin pathway, inflammation, and kidney development. Differential expression was observed in the Pten transcript and Agtr1a protein among the examined gene targets. Conclusion These findings suggest that miR-802-5p is a critical regulator of diabetic nephropathy in the cortex and medulla compartments, contributing to disease pathogenesis through the renin-angiotensin axis and inflammatory pathways.
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Affiliation(s)
- Farnoush Kiyanpour
- Department of Bioinformatics, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Abedi
- Department of Genetics, University of Pennsylvania Perelman, School of Medicine, Philadelphia, PA, USA
| | - Yousof Gheisari
- Regenerative Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Zhang Y, Lv X, Chen F, Fan Q, Liu Y, Wan Z, Nibaruta J, Lv J, Han X, Wu L, Wang H, Leng Y. Role of microRNAs in programmed cell death in renal diseases: A review. Medicine (Baltimore) 2023; 102:e33453. [PMID: 37058073 PMCID: PMC10101263 DOI: 10.1097/md.0000000000033453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/15/2023] [Indexed: 04/15/2023] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression involving kidney morphogenesis and cell proliferation, apoptosis, differentiation, migration, invasion, immune evasion, and extracellular matrix remodeling. Programmed cell death (PCD) is mediated and regulated by specific genes and a wealth of miRNAs, which participate in various pathological processes. Dysregulation of miRNAs can disrupt renal development and induce the onset and progression of various renal diseases. An in-depth understanding of how miRNAs regulate renal development and diseases is indispensable to comprehending how they can be used in new diagnostic and therapeutic approaches. However, the mechanisms are still insufficiently investigated. Hence, we review the current roles of miRNA-related signaling pathways and recent advances in PCD research and aim to display the potential crosstalk between miRNAs and PCD. The prospects of miRNAs as novel biomarkers and therapeutic targets are also described, which might provide some novel ideas for further studies.
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Affiliation(s)
- Yan Zhang
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Xinghua Lv
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Feng Chen
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Qian Fan
- Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Institute, Nankai University Affiliated Eye Hospital, Tianjin, China
- Nankai Eye Institute, Nankai University, Tianjin, China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Yongqiang Liu
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Zhanhai Wan
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Janvier Nibaruta
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Jipeng Lv
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Xuena Han
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
| | - Lin Wu
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Hao Wang
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Yufang Leng
- Department of Anesthesiology, First Hospital of Lanzhou University, Lanzhou, Gansu, China
- The First Clinical Medical College of Lanzhou University, Lanzhou, GanSu Province, China
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Veloso Pereira BM, Charleaux de Ponte M, Malavolta Luz AP, Thieme K. DNA methylation enzymes in the kidneys of male and female BTBR ob/ob mice. Front Endocrinol (Lausanne) 2023; 14:1167546. [PMID: 37091852 PMCID: PMC10113614 DOI: 10.3389/fendo.2023.1167546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
Diabetic kidney disease (DKD) is the leading cause of the end-stage renal disease. Recent studies have shown that epigenetic modifications contribute to alterations in gene expression and the development of DKD. This study aimed to show an expression profile of key DNA (de)methylation enzymes (DNMT, TET proteins) and their differences between sexes under obesity and diabetic condition. Male and female black and tan brachyury (BTBR) ob/ob mice and their corresponding wild-type littermates (BTBR WT) were studied until 16 weeks of age. Metabolic parameters, kidney morphophysiology and the expression of fibrotic markers and epigenetic enzymes were studied in whole kidney tissue or specifically in the glomerulus. The results showed sexual dimorphism in the development of metabolic disease and in kidney morphophysiology. Female mice have a different profile of DNMTs expression in both WT and obese/diabetic condition. Furthermore, metabolic condition negatively modulated the glomerular expression of TET1 and TET3 only in females. To our knowledge, this is the first study that shows a kidney profile of the expression of key (de)methylation enzymes, DNMTs and TETs, in the BTBR ob/ob experimental model of DKD and its association with sex. The knowledge of this epigenetic profile may help future research to understand the pathophysiology of DKD in males and females.
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Affiliation(s)
- Beatriz Maria Veloso Pereira
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Mariana Charleaux de Ponte
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Ana Paula Malavolta Luz
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
| | - Karina Thieme
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, SP, Brazil
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Rayego-Mateos S, Rodrigues-Diez RR, Fernandez-Fernandez B, Mora-Fernández C, Marchant V, Donate-Correa J, Navarro-González JF, Ortiz A, Ruiz-Ortega M. Targeting inflammation to treat diabetic kidney disease: the road to 2030. Kidney Int 2023; 103:282-296. [PMID: 36470394 DOI: 10.1016/j.kint.2022.10.030] [Citation(s) in RCA: 50] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 10/05/2022] [Accepted: 10/31/2022] [Indexed: 12/07/2022]
Abstract
Diabetic kidney disease (DKD) is one of the fastest growing causes of chronic kidney disease and associated morbidity and mortality. Preclinical research has demonstrated the involvement of inflammation in its pathogenesis and in the progression of kidney damage, supporting clinical trials designed to explore anti-inflammatory strategies. However, the recent success of sodium-glucose cotransporter-2 inhibitors and the nonsteroidal mineralocorticoid receptor antagonist finerenone has changed both guidelines and standard of care, rendering obsolete older studies directly targeting inflammatory mediators and the clinical development was discontinued for most anti-inflammatory drugs undergoing clinical trials for DKD in 2016. Given the contribution of inflammation to the pathogenesis of DKD, we review the impact on kidney inflammation of the current standard of care, therapies undergoing clinical trials, or repositioned drugs for DKD. Moreover, we review recent advances in the molecular regulation of inflammation in DKD and discuss potential novel therapeutic strategies with clinical relevance. Finally, we provide a road map for future research aimed at integrating the growing knowledge on inflammation and DKD into clinical practice to foster improvement of patient outcomes.
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Affiliation(s)
- Sandra Rayego-Mateos
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain; Ricord2040, Instituto de Salud Carlos II, Spain
| | - Raul R Rodrigues-Diez
- Ricord2040, Instituto de Salud Carlos II, Spain; Translational Immunology, Instituto de Investigación Sanitaria del Principado de Asturias ISPA, Oviedo, Asturias, Spain
| | - Beatriz Fernandez-Fernandez
- Ricord2040, Instituto de Salud Carlos II, Spain; Division of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid, Spain
| | - Carmen Mora-Fernández
- Ricord2040, Instituto de Salud Carlos II, Spain; Research Unit, University Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Vanessa Marchant
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain; Ricord2040, Instituto de Salud Carlos II, Spain
| | - Javier Donate-Correa
- Ricord2040, Instituto de Salud Carlos II, Spain; Research Unit, University Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Juan F Navarro-González
- Ricord2040, Instituto de Salud Carlos II, Spain; Research Unit, University Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain; Nephrology Service, University Hospital Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Alberto Ortiz
- Ricord2040, Instituto de Salud Carlos II, Spain; Division of Nephrology and Hypertension, IIS-Fundación Jiménez Díaz-Universidad Autónoma, Madrid, Spain
| | - Marta Ruiz-Ortega
- Cellular Biology in Renal Diseases Laboratory, IIS-Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain; Ricord2040, Instituto de Salud Carlos II, Spain.
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A Glimpse of necroptosis and diseases. Biomed Pharmacother 2022; 156:113925. [DOI: 10.1016/j.biopha.2022.113925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/18/2022] [Accepted: 10/24/2022] [Indexed: 11/24/2022] Open
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The Effect of Allograft Inflammatory Factor-1 on Inflammation, Oxidative Stress, and Autophagy via miR-34a/ATG4B Pathway in Diabetic Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1668000. [PMID: 36345369 PMCID: PMC9637042 DOI: 10.1155/2022/1668000] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 08/28/2022] [Accepted: 09/12/2022] [Indexed: 11/23/2022]
Abstract
Increasing evidence suggests that disorders of inflammation, oxidative stress, and autophagy contribute to the pathogenesis of diabetic kidney disease (DKD). This study attempted to clarify the effect of allograft inflammatory factor-1 (AIF-1), miR-34a, and ATG4B on inflammation, oxidative stress, and autophagy in DKD both in vitro and in vivo experiments. In vivo, it was found that the levels of AIF-1, miR-34a, oxidative stress, and inflammatory factors were significantly increased in blood and urine samples of DKD patients and mouse models and correlated with the level of urinary protein. In vitro, it was also found that the expressions of AIF-1, miR-34a, ROS, and inflammatory factors were increased, while ATG4B and other autophagy related proteins were decreased in human renal glomerular endothelial cells (HRGECs) cultured with high concentration glucose medium (30 mmol/L). When AIF-1 gene was overexpressed, the levels of miR-34a, ROS, and inflammatory factors were significantly upregulated, and autophagy-related proteins such as ATG4B were downregulated, while downregulation of AIF-1 gene had the opposite effect. In addition, miR-34a inhibited the expression of ATG4B and autophagy-related proteins and increased the levels of ROS and inflammation. Furthermore, the result of luciferase reporter assay suggested that ATG4B was the target gene of miR-34a. When ATG4B gene was overexpressed, the level of autophagy was upregulated, and inflammatory factors were downregulated. Conversely, when ATG4B gene was inhibited, the level of autophagy was downregulated, and inflammatory factors were upregulated. Then, autophagy inducers inhibited the levels of inflammation and ROS, whereas autophagy inhibitors had the opposite function in HRGECs induced by glucose (30 mmol/L). In conclusion, the above data suggested that AIF-1 regulated the levels of inflammation, oxidative stress, and autophagy in HRGECs via miR-34a/ATG4B pathway to contribute to the pathogenesis of diabetic kidney disease.
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