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Wang X, Chang HC, Gu X, Han W, Mao S, Lu L, Jiang S, Ding H, Han S, Qu X, Bao Z. Renal lipid accumulation and aging linked to tubular cells injury via ANGPTL4. Mech Ageing Dev 2024; 219:111932. [PMID: 38580082 DOI: 10.1016/j.mad.2024.111932] [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: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/07/2024]
Abstract
Renal tubular epithelial cells are vulnerable to stress-induced damage, including excessive lipid accumulation and aging, with ANGPTL4 potentially playing a crucial bridging role between these factors. In this study, RNA-sequencing was used to identify a marked increase in ANGPTL4 expression in kidneys of diet-induced obese and aging mice. Overexpression and knockout of ANGPTL4 in renal tubular epithelial cells (HK-2) was used to investigate the underlying mechanism. Subsequently, ANGPTL4 expression in plasma and kidney tissues of normal young controls and elderly individuals was analyzed using ELISA and immunohistochemical techniques. RNA sequencing results showed that ANGPTL4 expression was significantly upregulated in the kidney tissue of diet-induced obesity and aging mice. In vitro experiments demonstrated that overexpression of ANGPTL4 in HK-2 cells led to increased lipid deposition and senescence. Conversely, the absence of ANGPTL4 appears to alleviate the impact of free fatty acids (FFA) on aging in HK-2 cells. Additionally, aging HK-2 cells exhibited elevated ANGPTL4 expression, and stress response markers associated with cell cycle arrest. Furthermore, our clinical evidence revealed dysregulation of ANGPTL4 expression in serum and kidney tissue samples obtained from elderly individuals compared to young subjects. Our study findings indicate a potential association between ANGPTL4 and age-related metabolic disorders, as well as injury to renal tubular epithelial cells. This suggests that targeting ANGPTL4 could be a viable strategy for the clinical treatment of renal aging.
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Affiliation(s)
- Xiaojun Wang
- Department of Gerontology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Hung-Chen Chang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Cardiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Xuchao Gu
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Wanlin Han
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Cardiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Shihang Mao
- Department of ENT Institute and Otorhinolaryngology, Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology, NHC Key Laboratory of Hearing Medicine Research, Fudan University, Shanghai, China
| | - Lili Lu
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Traditional Chinese Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Shuai Jiang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Thoracic Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Haiyong Ding
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Urologic Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China.
| | - Shisheng Han
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Xinkai Qu
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Department of Cardiology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China.
| | - Zhijun Bao
- Department of Gerontology, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China; Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China.
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Vitamin E (Alpha-Tocopherol) Metabolism and Nutrition in Chronic Kidney Disease. Antioxidants (Basel) 2022; 11:antiox11050989. [PMID: 35624853 PMCID: PMC9137556 DOI: 10.3390/antiox11050989] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/07/2022] [Accepted: 05/10/2022] [Indexed: 01/27/2023] Open
Abstract
Vitamin E (alpha-tocopherol) is an essential micronutrient and fat-soluble antioxidant with proposed role in protecting tissues from uncontrolled lipid peroxidation. This vitamin has also important protein function and gene modulation effects. The metabolism of vitamin E depends on hepatic binding proteins that selectively retain food alpha-tocopherol for incorporation into nascent VLDL and tissue distribution together with esterified cholesterol and triglycerides. Chronic kidney disease (CKD) is a condition of oxidative stress and increased lipid peroxidation, that are associated with alterations of alpha-tocopherol metabolism and function. Specific changes have been reported for the levels of its enzymatic metabolites, including both short-chain and long-chain metabolites, the latter being endowed with regulatory functions on enzymatic and gene expression processes important for the metabolism of lipids and xenobiotics detoxification, as well as for the control of immune and inflammatory processes. Vitamin E therapy has been investigated in CKD using both oral vitamin E protocols and vitamin E-coated hemodialyzers, showing promising results in the secondary prevention of cardiovascular disease, as well as of immune and hematological complications. These therapeutic approaches are reviewed in the present article, together with a narrative excursus on the main findings indicating CKD as a condition of relative deficiency and impaired metabolism of vitamin E.
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Weng HC, Lu XY, Xu YP, Wang YH, Wang D, Feng YL, Chi Z, Yan XQ, Lu CS, Wang HW. Fibroblast growth factor 21 attenuates salt-sensitive hypertension-induced nephropathy through anti-inflammation and anti-oxidation mechanism. Mol Med 2021; 27:147. [PMID: 34773993 PMCID: PMC8590333 DOI: 10.1186/s10020-021-00408-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/31/2021] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Patients with salt-sensitive hypertension are often accompanied with severe renal damage and accelerate to end-stage renal disease, which currently lacks effective treatment. Fibroblast growth factor 21 (FGF21) has been shown to suppress nephropathy in both type 1 and type 2 diabetes mice. Here, we aimed to investigate the therapeutic effect of FGF21 in salt-sensitive hypertension-induced nephropathy. METHODS Changes of FGF21 expression in deoxycorticosterone acetate (DOCA)-salt-induced hypertensive mice were detected. The influence of FGF21 knockout in mice on DOCA-salt-induced nephropathy were determined. Recombinant human FGF21 (rhFGF21) was intraperitoneally injected into DOCA-salt-induced nephropathy mice, and then the inflammatory factors, oxidative stress levels and kidney injury-related indicators were observed. In vitro, human renal tubular epithelial cells (HK-2) were challenged by palmitate acid (PA) with or without FGF21, and then changes in inflammation and oxidative stress indicators were tested. RESULTS We observed significant elevation in circulating levels and renal expression of FGF21 in DOCA-salt-induced hypertensive mice. We found that deletion of FGF21 in mice aggravated DOCA-salt-induced nephropathy. Supplementation with rhFGF21 reversed DOCA-salt-induced kidney injury. Mechanically, rhFGF21 induced AMPK activation in DOCA-salt-treated mice and PA-stimulated HK-2 cells, which inhibited NF-κB-regulated inflammation and Nrf2-mediated oxidative stress and thus, is important for rhFGF21 protection against DOCA-salt-induced nephropathy. CONCLUSION These findings indicated that rhFGF21 could be a promising pharmacological strategy for the treatment of salt-sensitive hypertension-induced nephropathy.
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Affiliation(s)
- Hua-Chun Weng
- The College of Medical Technology, Shanghai University of Medicine & Health Sciences, Shanghai, 200000, China
| | - Xin-Yu Lu
- The First Clinical Medical College of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yu-Peng Xu
- The First Clinical Medical College of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yi-Hong Wang
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, 322 Nanbaixiang Street, Wenzhou, 325000, Zhejiang, China
| | - Dan Wang
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, 322 Nanbaixiang Street, Wenzhou, 325000, Zhejiang, China
| | - Yi-Ling Feng
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, 322 Nanbaixiang Street, Wenzhou, 325000, Zhejiang, China
| | - Zhang Chi
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xiao-Qing Yan
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Chao-Sheng Lu
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, 322 Nanbaixiang Street, Wenzhou, 325000, Zhejiang, China.
| | - Hong-Wei Wang
- Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, 322 Nanbaixiang Street, Wenzhou, 325000, Zhejiang, China.
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Zhang Q, Lai LY, Cai YY, Wang MJ, Ma G, Qi LW, Xue J, Huang FQ. Serum-Urine Matched Metabolomics for Predicting Progression of Henoch-Schonlein Purpura Nephritis. Front Med (Lausanne) 2021; 8:657073. [PMID: 34055834 PMCID: PMC8149729 DOI: 10.3389/fmed.2021.657073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/15/2021] [Indexed: 01/15/2023] Open
Abstract
Henoch-Schonlein purpura nephritis (HSPN) is a common glomerulonephritis secondary to Henoch-Schonlein purpura (HSP) that affects systemic metabolism. Currently, there is a rarity of biomarkers to predict the progression of HSPN. This work sought to screen metabolic markers to predict the progression of HSPN via serum-urine matched metabolomics. A total of 90 HSPN patients were enrolled, including 46 HSPN (+) patients with severe kidney damage (persistent proteinuria >0.3 g/day) and 44 HSPN (–) patients without obvious symptoms (proteinuria < 0.3 g/day). Untargeted metabolomics was determined by liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-Q/TOF-MS). A total of 38 and 50 differential metabolites were, respectively, identified in serum and urine from the comparison between HSPN (+) and HSPN (–) patients. Altered metabolic pathways in HSPN (+) mainly included glycerophospholipid metabolism, pyruvate metabolism, and citrate cycle. A panel of choline and cis-vaccenic acid gave areas under the curve of 92.69% in serum and 72.43% in urine for differential diagnosis between HSPN (+) and HSPN (–). In addition, the two metabolites showed a significant association with clinical indices of HSPN. These results suggest that serum-urine matched metabolomics comprehensively characterized the metabolic differences between HSPN (+) and HSPN (–), and choline and cis-vaccenic acid could serve as biomarkers to predict HSPN progression.
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Affiliation(s)
- Qian Zhang
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
| | - Ling-Yun Lai
- Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuan-Yuan Cai
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
| | - Ma-Jie Wang
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
| | - Gaoxiang Ma
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
| | - Lian-Wen Qi
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
| | - Jun Xue
- Division of Nephrology, Huashan Hospital, Fudan University, Shanghai, China
| | - Feng-Qing Huang
- The Clinical Metabolomics Center, China Pharmaceutical University, Nanjing, China
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The Dysregulation of Eicosanoids and Bile Acids Correlates with Impaired Kidney Function and Renal Fibrosis in Chronic Renal Failure. Metabolites 2021; 11:metabo11020127. [PMID: 33672315 PMCID: PMC7926759 DOI: 10.3390/metabo11020127] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/11/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic renal failure (CRF) is an irreversible deterioration of the renal functions that characterized by fluid electrolyte unbalance and metabolic-endocrine dysfunctions. Increasing evidence demonstrated that metabolic disturbances, especially dyslipidemia and profound changes in lipid and lipoprotein metabolism were involved in CRF. Identification of lipids associated with impaired kidney functions may play important roles in the understanding of biochemical mechanism and CRF treatment. Ultra-performance liquid chromatography coupled with high-definition mass spectrometry-based lipidomics was performed to identify important differential lipids in adenine-induced CRF rats and investigate the undergoing anti-fibrotic mechanism of Polyporus umbellatus (PPU) and ergone (ERG). Linear correlation analysis was performed between lipid species intensities and creatinine levels in serum. Adenine-induced rats exhibited declining kidney function and renal fibrosis. Compared with control rats, a panel of lipid species was identified in the serum of CRF rats. Our further study demonstrated that eight lipids, including leukotrienes and bile acids, presented a strong linear correlation with serum creatinine levels. In addition, receiver operating characteristics analysis showed that eight lipids exhibited excellent area under the curve for differentiating CRF from control rats, with high sensitivity and specificity. The aberrant changes of clinical biochemistry data and dysregulation of eight lipids could be significantly improved by the administration of PPU and ergone. In conclusion, CRF might be associated with the disturbance of leukotriene metabolism, bile acid metabolism and lysophospholipid metabolism. The levels of eicosanoids and bile acids could be used for indicating kidney function impairment in CRF. PPU could improve renal functions and either fully or partially reversed the levels of eicosanoids and bile acids.
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Liu X, Guo Y, Wu J, Yao N, Wang H, Li B. Discrimination of Chronic Kidney Disease and Diabetic Nephropathy and Analysis of Their Related Influencing Factors. Diabetes Metab Syndr Obes 2020; 13:5085-5096. [PMID: 33408492 PMCID: PMC7779288 DOI: 10.2147/dmso.s275398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/25/2020] [Indexed: 12/02/2022] Open
Abstract
PURPOSE Clinically there are not many clinical indicators to differentiate diabetic kidney disease (DKD) and chronic kidney disease (CKD). Data from laboratory inspections on admission of clinical patients were used to complete the relationship and discrimination analysis of the two diseases. PATIENTS AND METHODS All subjects were taken from the Department of Nephrology of the Second Hospital of Jilin University from January 2019 to September 2020 with clinical diagnosis of CKD or diabetic nephropathy and no other diseases. After querying the hospital's medical record system, the basic demographic information was obtained, and data on cardiovascular, metabolism, renal function, blood function, and other relevant indicators were extracted as well. IBM SPSS 24.0 software was used for data collation and analysis. RESULTS A total of 1726 inpatients (986 males and 740 females) over 18 years old were included, 1407 were CKD patients, 319 were DKD patients. Female accounted for 55.4% in CKD patients, 64.6% in DKD patients. Compared to men, women may be more susceptible to DKD (OR=2.234). DKD patients were more likely to be have higher DP, GLU, eGFR, TCHO, and abnormal TVU (OR=1.746, 3.404, 1.107, 3.004, 14.03) while VB12 was the relative risk factor for CKD; thus, low VB12 level is more likely to happen in CKD patients (OR=0.054, OR95%CI: 0.005-0.552, P=0.014) compared with DKD patients. The stepwise discriminant analysis was completed, only 11 of the 34 variables had discriminative significance. The discriminant score (DS) was set to explore its test efficiency of DKD prediction by drawing ROC curve. Discriminant formula used for CKD and DN identification was given in the study. CONCLUSION Female, higher DP, fasting blood GLU and TCHO level seemed to be more indicative for DKD, while lower eGFR level and VB12 deficiency were more likely to point to CKD. Doctors can refer to the discriminant formula to assist in the differential diagnosis of the two diseases after completing the detection of DP, fasting blood GLU, Cys-C, eGFR, TVU, TCHO, FA, VB12, CK, and CK-Mb.
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Affiliation(s)
- Xiumin Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yinpei Guo
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, People’s Republic of China
| | - Jing Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Jilin University, Changchun, People’s Republic of China
| | - Nan Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, People’s Republic of China
| | - Han Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, People’s Republic of China
| | - Bo Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, People’s Republic of China
- Correspondence: Bo Li Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, No. 1163 Xinmin Street, Chaoyang District, Changchun City, Jilin Province, People’s Republic of ChinaTel/Fax +8643185619451 Email
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