1
|
Bajwa S, Luebbe A, Vo NDN, Piskor EM, Kosan C, Wolf G, Loeffler I. RAGE is a critical factor of sex-based differences in age-induced kidney damage. Front Physiol 2023; 14:1154551. [PMID: 37064891 PMCID: PMC10090518 DOI: 10.3389/fphys.2023.1154551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
Introduction: Advanced glycation end products (AGEs) are a heterogeneous group of molecules with potential pathophysiological effects on the kidneys. Fibrosis together with the accumulation of AGEs has been investigated for its contribution to age-related decline in renal function. AGEs mediate their effects in large parts through their interactions with the receptor for AGEs (RAGE). RAGE is a transmembrane protein that belongs to the immunoglobulin superfamily and has the ability to interact with multiple pro-inflammatory/pro-oxidative ligands. The role of RAGE in aging kidneys has not been fully characterized, especially for sex-based differences.Methods: Therefore, we analyzed constitutive RAGE knockout (KO) mice in an age- and sex-dependent manner. Paraffin-embedded kidney sections were used for histological analysis and protein expression of fibrosis and damage markers. RNA expression analysis from the kidney cortex was done by qPCR for AGE receptors, kidney damage, and early inflammation/fibrosis factors. FACS analysis was used for immune cell profiling of the kidneys.Results: Histological analysis revealed enhanced infiltration of immune cells (positive for B220) in aged (>70 weeks old) KO mice in both sexes. FACS analysis revealed a similar pattern of enhanced B-1a cells in aged KO mice. There was an age-based increase in pro-fibrotic and pro-inflammatory markers (IL-6, TNF, TGF-β1, and SNAIL1) in KO male mice that presumably contributed to renal fibrosis and renal damage (glomerular and tubular). In fact, in KO mice, there was an age-dependent increase in renal damage (assessed by NGAL and KIM1) that was accompanied by increased fibrosis (assessed by CTGF). This effect was more pronounced in male KO mice than in the female KO mice. In contrast to the KO animals, no significant increase in damage markers was detectable in wild-type animals at the age examined (>70 weeks old). Moreover, there is an age-based increase in AGEs and scavenger receptor MSR-A2 in the kidneys.Discussion: Our data suggest that the loss of the clearance receptor RAGE in male animals further accelerates age-dependent renal damage; this could be in part due to an increase in AGEs load during aging and the absence of protective female hormones. By contrast, in females, RAGE expression seems to play only a minor role when compared to tissue pathology.
Collapse
Affiliation(s)
- Seerat Bajwa
- Department of Internal Medicine III, Jena University Hospital, Jena, Germany
| | - Alexander Luebbe
- Department of Internal Medicine III, Jena University Hospital, Jena, Germany
| | - Ngoc Dong Nhi Vo
- Department of Internal Medicine III, Jena University Hospital, Jena, Germany
| | - Eva-Maria Piskor
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine (CMB), Friedrich Schiller University, Jena, Germany
| | - Christian Kosan
- Institute of Biochemistry and Biophysics, Center for Molecular Biomedicine (CMB), Friedrich Schiller University, Jena, Germany
| | - Gunter Wolf
- Department of Internal Medicine III, Jena University Hospital, Jena, Germany
| | - Ivonne Loeffler
- Department of Internal Medicine III, Jena University Hospital, Jena, Germany
- *Correspondence: Ivonne Loeffler,
| |
Collapse
|
2
|
Advanced Glycation End Products (AGEs) and Chronic Kidney Disease: Does the Modern Diet AGE the Kidney? Nutrients 2022; 14:nu14132675. [PMID: 35807857 PMCID: PMC9268915 DOI: 10.3390/nu14132675] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 12/13/2022] Open
Abstract
Since the 1980s, chronic kidney disease (CKD) affecting all ages has increased by almost 25%. This increase may be partially attributable to lifestyle changes and increased global consumption of a “western” diet, which is typically energy dense, low in fruits and vegetables, and high in animal protein and ultra-processed foods. These modern food trends have led to an increase in the consumption of advanced glycation end products (AGEs) in conjunction with increased metabolic dysfunction, obesity and diabetes, which facilitates production of endogenous AGEs within the body. When in excess, AGEs can be pathological via both receptor-mediated and non-receptor-mediated pathways. The kidney, as a major site for AGE clearance, is particularly vulnerable to AGE-mediated damage and increases in circulating AGEs align with risk of CKD and all-cause mortality. Furthermore, individuals with significant loss of renal function show increased AGE burden, particularly with uraemia, and there is some evidence that AGE lowering via diet or pharmacological inhibition may be beneficial for CKD. This review discusses the pathways that drive AGE formation and regulation within the body. This includes AGE receptor interactions and pathways of AGE-mediated pathology with a focus on the contribution of diet on endogenous AGE production and dietary AGE consumption to these processes. We then analyse the contribution of AGEs to kidney disease, the evidence for dietary AGEs and endogenously produced AGEs in driving pathogenesis in diabetic and non-diabetic kidney disease and the potential for AGE targeted therapies in kidney disease.
Collapse
|
3
|
Wang S, Zuo A, Jiang W, Xie J, Lin H, Sun W, Zhao M, Xia J, Shao J, Zhao X, Liang D, Yang A, Sun J, Wang M. JMJD1A/NR4A1 Signaling Regulates the Procession of Renal Tubular Epithelial Interstitial Fibrosis Induced by AGEs in HK-2. Front Med (Lausanne) 2022; 8:807694. [PMID: 35186975 PMCID: PMC8850412 DOI: 10.3389/fmed.2021.807694] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/14/2021] [Indexed: 12/14/2022] Open
Abstract
Diabetic kidney disease (DKD) is one of the most serious complications of diabetic patients. Advanced glycation end products (AGEs) induce epithelial-mesenchymal transformation (EMT) of renal tubular epithelial cells (HK-2), resulting in renal tubulointerstitial fibrosis. However, the underlying epigenetic mechanisms remain to be further investigated. In this work, we investigated the functional role of JMJD1A involved in DKD progression. The molecular mechanism study was performed in AGEs-induced HK-2 cells by gene expression analysis, RNA sequencing (RNA-seq), and JMJD1A lentiviral knockdown and overexpression particle transfection. The results showed that AGEs could upregulate JMJD1A, and the expressions of related fibrotic factor were also increased. At the same time, in the DKD animal model induced by unilateral nephrectomy plus streptozotocin (STZ), IHC immunohistochemical staining showed that compared with the control group, the expressions of JMJD1A, FN, and COL1 in the model group were all increased, masson staining results also show that the model group has typical fibrotic changes. This is consistent with the results of our in vitro experiments. In order to determine the downstream pathway, we screened out JMJD1A downstream transcription factors by RNA-seq. Further analysis showed that JMJD1A overexpression could accelerate the progression of AGEs-induced renal fibrosis by reducing the expression of NR4A1 in HK-2 cells. Meanwhile, NR4A1 inhibitor can promote the expression of fibrosis-related factors such as VIM, a-SMA in HK-2 cells, and aggravate the process of fibrosis. Taken together, JMJD1A/NR4A1 signaling can regulate the procession of renal tubular epithelial interstitial fibrosis induced by AGEs in HK-2.
Collapse
Affiliation(s)
- Shaoting Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Anna Zuo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Weiqiang Jiang
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jiarun Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Haoyu Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wei Sun
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Min Zhao
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jinjin Xia
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Junqiao Shao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xiaoshan Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Donghui Liang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Aicheng Yang
- The Affiliated Jiangmen Traditional Chinese Medicine Hospital, Jinan University, Guangzhou, China
- Aicheng Yang
| | - Jia Sun
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Jia Sun
| | - Ming Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Ming Wang
| |
Collapse
|
4
|
Mazlan MA, Isa MLM, Ibrahim M. A high mannose concentration is well tolerated by colorectal adenocarcinoma and melanoma cells but toxic to normal human gingival fibroblast: an in vitro investigation. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2020. [DOI: 10.1186/s43042-020-00109-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The primary cause of cancer is gene mutation which allows the growth of abnormal and damaged cells. Nutrition is one of the key factors that either increases or decreases the risk of cancer. Mannose has been found in many fruits such as oranges, apples and berries. Mannose has been linked to increase the risk factors or potential therapeutic for cancers. However, insufficient information is available on the effects of high mannose concentration on the normal and cancer cell lines. This study aimed to evaluate the viability patterns of human cancer and normal cell lines treated with mannose. Human gingival fibroblast (HGF), skin malignant melanoma (A375) and colorectal adenocarcinoma (HT29) cell lines were cultured and treated with additional mannose in three respective concentrations: 1 mg/ml, 5 mg/ml and 10 mg/ml. Then, cell viability was measured using an MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide)-assay.
Results
The HGF cells’ percentage pattern of viability showed a rapid decline of nearly 95% on the third day of treatment. A375 cells were able to survive in high mannose condition as the cell viability percentage was at the highest value on Day 5. Meanwhile, HT29 cells showed declining cell viability pattern when treated with mannose. The data exhibited significance; the p value was less than 0.001.
Conclusions
High mannose concentration can be toxic to HGF. In addition, A375 is adaptive to mannose at all concentrations in which it shares the same pattern with the untreated group. However, the cell viability pattern for HT29 cell is declining.
Collapse
|
5
|
Inacio MD, Costa MC, Lima TFO, Figueiredo ID, Motta BP, Spolidorio LC, Assis RP, Brunetti IL, Baviera AM. Pentoxifylline mitigates renal glycoxidative stress in obese mice by inhibiting AGE/RAGE signaling and increasing glyoxalase levels. Life Sci 2020; 258:118196. [PMID: 32763295 DOI: 10.1016/j.lfs.2020.118196] [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: 05/27/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 12/12/2022]
Abstract
AIM The pharmacological properties of pentoxifylline have been re-evaluated, particularly in chronic kidney disease in diabetes, favored by its anti-inflammatory action. Definitive evidences of renal outcomes are lacking, which indicates the need for investigation of novel mechanisms of action of pentoxifylline. We postulated that components associated with the metabolism of advanced glycation end products (AGEs) may be modulated by pentoxifylline, which consequently decreases the detrimental effects of obesity on kidneys. MAIN METHODS C57BL-6J mice were fed a high-fat diet for 14 weeks and treated with 50 mg/kg pentoxifylline during the last 7 weeks. Changes in the renal levels of AGE metabolism-associated components were investigated, with particular focus on the receptor for AGEs (RAGE), its downstream components, and components related to AGE detoxification, including glyoxalase 1 (GLO 1). KEY FINDINGS Pentoxifylline reduced body weight gain, improved insulin sensitivity and glucose tolerance, downregulated biomarkers of glycoxidative stress, and enhanced plasma paraoxonase 1 activity. In the kidneys, pentoxifylline inhibited glomerular expansion, lipid deposition, reduced pro-inflammatory cytokine levels, and induced the activation of AMP-activated protein kinase. Pentoxifylline inhibited the renal accumulation of AGEs and reduced the levels of RAGE and its downstream components, and consequently mitigated oxidative stress and apoptosis. Pentoxifylline also increased the renal levels of GLO 1 and the activities of antioxidant enzymes. Urinary albumin levels were observed to be lowered, which reconfirmed the antialbuminuric effects of pentoxifylline. SIGNIFICANCE The novel mechanisms of action help explain the renoprotective effects of pentoxifylline and the attenuation of obesity-associated renal complications related to glycoxidative stress.
Collapse
Affiliation(s)
- Maiara Destro Inacio
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Mariana Campos Costa
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Tayra Ferreira Oliveira Lima
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Ingrid Delbone Figueiredo
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Bruno Pereira Motta
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Luís Carlos Spolidorio
- São Paulo State University (Unesp), Araraquara School of Dentistry, Department of Physiology and Pathology, Araraquara, São Paulo, Brazil
| | - Renata Pires Assis
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil; Paulista University (UNIP), Institute of Health Sciences, Araraquara, São Paulo, Brazil
| | - Iguatemy Lourenço Brunetti
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil
| | - Amanda Martins Baviera
- São Paulo State University (Unesp), School of Pharmaceutical Sciences, Department of Clinical Analysis, Araraquara, São Paulo, Brazil.
| |
Collapse
|