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Dey I, Li Y, Taylor TC, Peroumal D, Asada N, Panzer U, Biswas PS, Sterneck E, Gaffen SL. C/EBPδ Mediates Immunity to Renal Autoinflammatory Disorders in a Stage-specific Manner. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:767-778. [PMID: 39082925 PMCID: PMC11371505 DOI: 10.4049/jimmunol.2400124] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 07/05/2024] [Indexed: 09/05/2024]
Abstract
Kidney disease represents a major medical and economic burden for which improved treatments are urgently needed. Emerging data have implicated Th17 cells and IL-17 signaling in the underlying pathogenesis of autoantibody-induced glomerulonephritis (AGN). However, the downstream transduction pathways mediated by IL-17 in autoimmunity are not well defined. In this article, we show that CCAAT/enhancer-binding protein (C/EBP) δ is elevated in kidney biopsies from multiple manifestations of human AGN. C/EBPδ is similarly upregulated in a mouse model of anti-glomerular basement membrane protein-mediated kidney disease, and Cebpd-/- mice were fully refractory to disease. Although C/EBPδ is expressed in a variety of cell types, C/EBPδ was required only in the radioresistant compartment to drive GN pathology. C/EBPδ induced expression of several IL-17-induced kidney injury markers and cytokines implicated in disease, including Il6 and Lcn2. Because mouse AGN models do not progress to fibrosis, we employed a nephrotoxic injury model using aristolochic acid I to assess the contribution of the IL-17-C/EBPδ pathway to renal fibrotic events. Surprisingly, deficiency of either C/EBPδ or the IL-17 receptor caused kidney fibrosis to be enhanced. Thus, C/EBPδ and IL-17 play divergent and apparently stage-specific roles in the pathogenesis of kidney disease.
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Affiliation(s)
- Ipsita Dey
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
| | - Yang Li
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
| | - Tiffany C Taylor
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
| | - Doureradjou Peroumal
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
| | - Nariaki Asada
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ulf Panzer
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Partha S Biswas
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
| | - Esta Sterneck
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD
| | - Sarah L Gaffen
- University of Pittsburgh, Division of Rheumatology and Clinical Immunology, Pittsburgh, PA
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2
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Li Y, Vyas SP, Mehta I, Asada N, Dey I, Taylor TC, Bechara R, Amatya N, Aggor FEY, Coleman BM, Li DD, Yamamoto K, Ezenwa O, Sun Y, Sterneck E, McManus CJ, Panzer U, Biswas PS, Savan R, Das J, Gaffen SL. The RNA binding protein Arid5a drives IL-17-dependent autoantibody-induced glomerulonephritis. J Exp Med 2024; 221:e20240656. [PMID: 39058386 DOI: 10.1084/jem.20240656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/06/2024] [Accepted: 06/17/2024] [Indexed: 07/28/2024] Open
Abstract
Autoantibody-mediated glomerulonephritis (AGN) arises from dysregulated renal inflammation, with urgent need for improved treatments. IL-17 is implicated in AGN and drives pathology in a kidney-intrinsic manner via renal tubular epithelial cells (RTECs). Nonetheless, downstream signaling mechanisms provoking kidney pathology are poorly understood. A noncanonical RNA binding protein (RBP), Arid5a, was upregulated in human and mouse AGN. Arid5a-/- mice were refractory to AGN, with attenuated myeloid infiltration and impaired expression of IL-17-dependent cytokines and transcription factors (C/EBPβ, C/EBPδ). Transcriptome-wide RIP-Seq revealed that Arid5a inducibly interacts with conventional IL-17 target mRNAs, including CEBPB and CEBPD. Unexpectedly, many Arid5a RNA targets corresponded to translational regulation and RNA processing pathways, including rRNAs. Indeed, global protein synthesis was repressed in Arid5a-deficient cells, and C/EBPs were controlled at the level of protein rather than RNA accumulation. IL-17 prompted Arid5a nuclear export and association with 18S rRNA, a 40S ribosome constituent. Accordingly, IL-17-dependent renal autoimmunity is driven by Arid5a at the level of ribosome interactions and translation.
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Affiliation(s)
- Yang Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shachi P Vyas
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Isha Mehta
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nariaki Asada
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany
| | - Ipsita Dey
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tiffany C Taylor
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rami Bechara
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Nilesh Amatya
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Felix E Y Aggor
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bianca M Coleman
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - De-Dong Li
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kenta Yamamoto
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ogechukwu Ezenwa
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yeque Sun
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Esta Sterneck
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA
| | - C Joel McManus
- Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Ulf Panzer
- III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf , Hamburg, Germany
| | - Partha S Biswas
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ram Savan
- Department of Immunology, School of Medicine, University of Washington, Seattle, WA, USA
| | - Jishnu Das
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sarah L Gaffen
- Division of Rheumatology & Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
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3
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Chang SS, Cheng CC, Chen YR, Chen FW, Cheng YM, Wang JM. Epithelial CEBPD activates fibronectin and enhances macrophage adhesion in renal ischemia-reperfusion injury. Cell Death Discov 2024; 10:328. [PMID: 39025831 PMCID: PMC11258324 DOI: 10.1038/s41420-024-02082-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
Ischemia-reperfusion injury (IRI) is a cause of acute kidney injury in patients after renal transplantation and leads to high morbidity and mortality. Damaged kidney resident cells release cytokines and chemokines, which rapidly recruit leukocytes. Fibronectin (FN-1) contributes to immune cell migration, adhesion and growth in inflamed tissues. CCAAT/enhancer-binding protein delta is responsive to inflammatory cytokines and stresses and plays functional roles in cell motility, extracellular matrix production and immune responses. We found that the expression of CCAAT/enhancer-binding protein delta was increased in renal epithelial cells in IRI mice compared with sham mice. Following IRI, the colocalization of FN-1 with the macrophage marker F4/80 was increased in renal injury model wild-type mice but was significantly attenuated in Cebpd-deficient mice. Inactivation of CEBPD can repress hypoxia-induced FN-1 expression in HK-2 cells. Moreover, the inactivation of CEBPD and FN-1 also reduces macrophage accumulation in HK-2 cells. These findings suggest that the involvement of CEBPD in macrophage accumulation through the activation of FN-1 expression and the inhibition of CEBPD can protect against renal IRI.
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Affiliation(s)
- Shen-Shin Chang
- Division of Transplantation, Department of Surgery, National Chung Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Chao-Chun Cheng
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ying-Ren Chen
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Feng-Wei Chen
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ya-Min Cheng
- Department of Obstetrics and Gynecology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan.
- Department of Obstetrics and Gynecology, Kuo General Hospital, Tainan, 700, Taiwan.
| | - Ju-Ming Wang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, 701, Taiwan.
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, 110, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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4
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Wei M, Liu J, Wang X, Liu X, Jiang L, Jiang Y, Ma Y, Wang J, Yuan H, An X, Song Y, Zhang L. Multi-omics analysis of kidney tissue metabolome and proteome reveals the protective effect of sheep milk against adenine-induced chronic kidney disease in mice. Food Funct 2024; 15:7046-7062. [PMID: 38864415 DOI: 10.1039/d4fo00619d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Chronic kidney disease (CKD) is characterized by impaired renal function and is associated with inflammation, oxidative stress, and fibrosis. Sheep milk contains several bioactive molecules with protective effects against inflammation and oxidative stress. In the current study, we investigated the potential renoprotective effects of sheep milk and the associated mechanisms of action in an adenine-induced CKD murine model. Sheep milk delayed renal chronic inflammation (e.g., significant reduction in levels of inflammatory factors Vcam1, Icam1, Il6, and Tnfa), fibrosis (significant reduction in levels of fibrosis factors Col1a1, Fn1, and Tgfb), oxidative stress (significant increase in levels of antioxidants and decrease in oxidative markers), mineral disorders, and renal injury in adenine-treated mice (e.g. reduced levels of kidney injury markers NGAL and KIM-1). The combined proteomics and metabolomics analyses showed that sheep milk may affect the metabolic processes of several compounds, including proteins, lipids, minerals, and hormones in mice with adenine-induced chronic kidney disease. In addition, it may regulate the expression of fibrosis-related factors and inflammatory factors through the JAK1/STAT3/HIF-1α signaling pathway, thus exerting its renoprotective effects. Therefore, sheep milk may be beneficial for patients with CKD and should be evaluated in preclinical and clinical studies.
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Affiliation(s)
- Mengyao Wei
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Jiaxin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Xiaofei Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Xiaorui Liu
- Division of Laboratory Safety and Services, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Luyao Jiang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Yue Jiang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Yingtian Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Jiangang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Hao Yuan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Xiaopeng An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Yuxuan Song
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
| | - Lei Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shannxi 712100, China.
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5
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Wang L, Su J, Liu Z, Ding S, Li Y, Hou B, Hu Y, Dong Z, Tang J, Liu H, Liu W. Identification of immune-associated biomarkers of diabetes nephropathy tubulointerstitial injury based on machine learning: a bioinformatics multi-chip integrated analysis. BioData Min 2024; 17:20. [PMID: 38951833 PMCID: PMC11218417 DOI: 10.1186/s13040-024-00369-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 06/10/2024] [Indexed: 07/03/2024] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a major microvascular complication of diabetes and has become the leading cause of end-stage renal disease worldwide. A considerable number of DN patients have experienced irreversible end-stage renal disease progression due to the inability to diagnose the disease early. Therefore, reliable biomarkers that are helpful for early diagnosis and treatment are identified. The migration of immune cells to the kidney is considered to be a key step in the progression of DN-related vascular injury. Therefore, finding markers in this process may be more helpful for the early diagnosis and progression prediction of DN. METHODS The gene chip data were retrieved from the GEO database using the search term ' diabetic nephropathy '. The ' limma ' software package was used to identify differentially expressed genes (DEGs) between DN and control samples. Gene set enrichment analysis (GSEA) was performed on genes obtained from the molecular characteristic database (MSigDB. The R package 'WGCNA' was used to identify gene modules associated with tubulointerstitial injury in DN, and it was crossed with immune-related DEGs to identify target genes. Gene ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed on differentially expressed genes using the 'ClusterProfiler' software package in R. Three methods, least absolute shrinkage and selection operator (LASSO), support vector machine recursive feature elimination (SVM-RFE) and random forest (RF), were used to select immune-related biomarkers for diagnosis. We retrieved the tubulointerstitial dataset from the Nephroseq database to construct an external validation dataset. Unsupervised clustering analysis of the expression levels of immune-related biomarkers was performed using the 'ConsensusClusterPlus 'R software package. The urine of patients who visited Dongzhimen Hospital of Beijing University of Chinese Medicine from September 2021 to March 2023 was collected, and Elisa was used to detect the mRNA expression level of immune-related biomarkers in urine. Pearson correlation analysis was used to detect the effect of immune-related biomarker expression on renal function in DN patients. RESULTS Four microarray datasets from the GEO database are included in the analysis : GSE30122, GSE47185, GSE99340 and GSE104954. These datasets included 63 DN patients and 55 healthy controls. A total of 9415 genes were detected in the data set. We found 153 differentially expressed immune-related genes, of which 112 genes were up-regulated, 41 genes were down-regulated, and 119 overlapping genes were identified. GO analysis showed that they were involved in various biological processes including leukocyte-mediated immunity. KEGG analysis showed that these target genes were mainly involved in the formation of phagosomes in Staphylococcus aureus infection. Among these 119 overlapping genes, machine learning results identified AGR2, CCR2, CEBPD, CISH, CX3CR1, DEFB1 and FSTL1 as potential tubulointerstitial immune-related biomarkers. External validation suggested that the above markers showed diagnostic efficacy in distinguishing DN patients from healthy controls. Clinical studies have shown that the expression of AGR2, CX3CR1 and FSTL1 in urine samples of DN patients is negatively correlated with GFR, the expression of CX3CR1 and FSTL1 in urine samples of DN is positively correlated with serum creatinine, while the expression of DEFB1 in urine samples of DN is negatively correlated with serum creatinine. In addition, the expression of CX3CR1 in DN urine samples was positively correlated with proteinuria, while the expression of DEFB1 in DN urine samples was negatively correlated with proteinuria. Finally, according to the level of proteinuria, DN patients were divided into nephrotic proteinuria group (n = 24) and subrenal proteinuria group. There were significant differences in urinary AGR2, CCR2 and DEFB1 between the two groups by unpaired t test (P < 0.05). CONCLUSIONS Our study provides new insights into the role of immune-related biomarkers in DN tubulointerstitial injury and provides potential targets for early diagnosis and treatment of DN patients. Seven different genes ( AGR2, CCR2, CEBPD, CISH, CX3CR1, DEFB1, FSTL1 ), as promising sensitive biomarkers, may affect the progression of DN by regulating immune inflammatory response. However, further comprehensive studies are needed to fully understand their exact molecular mechanisms and functional pathways in DN.
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Affiliation(s)
- Lin Wang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Jiaming Su
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Zhongjie Liu
- Beijing University of Chinese Medicine, Beijing, China
| | - Shaowei Ding
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Yaotan Li
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Baoluo Hou
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Yuxin Hu
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Zhaoxi Dong
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Jingyi Tang
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Beijing University of Chinese Medicine, Beijing, China
| | - Hongfang Liu
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China.
| | - Weijing Liu
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
- Renal Research Institution of Beijing University of Chinese Medicine, Dongzhimen Hospital, Affiliated to Beijing University of Chinese Medicine, Beijing, China.
- Beijing University of Chinese Medicine, Beijing, China.
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6
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Kung CW, Chou YH. Acute kidney disease: an overview of the epidemiology, pathophysiology, and management. Kidney Res Clin Pract 2023; 42:686-699. [PMID: 37165615 DOI: 10.23876/j.krcp.23.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/20/2023] [Indexed: 05/12/2023] Open
Abstract
Acute kidney injury (AKI) increases the risk of chronic kidney disease (CKD), and AKI and CKD are seen as interconnected syndromes. Acute kidney disease (AKD) is defined as subacute damage and/or loss of kidney function occurring 7 to 90 days after AKI, during which period key interventions may be initiated to hinder the development of CKD. While AKD is usually under-recognized, it is associated with high morbidity and mortality globally. This review article aims to summarize the current knowledge concerning the epidemiology, pathophysiology, and management of AKD with the aim to develop monitoring strategies and therapeutic agents of AKD. Generally, AKD tends to occur more frequently in the elderly and those with chronic diseases, such as hypertension, diabetes mellitus, and metabolic syndrome. In addition, the severity, duration, and frequency of AKI are independent risk factors for AKD. Investigations of several mechanisms of AKD, such as renal tubular epithelium cell-cycle arrest, epigenetic change, chronic inflammation, mitochondria dysfunction, failed regeneration of tubular cells, metabolic reprogramming, and renin-angiotensin system (RAS) activation, have identified additional potential pharmacotherapy targets. Management of AKD includes prevention of repeated AKI, early and regular follow-up by a nephrologist, resumption and adjustment of essential medication, optimization of blood pressure control and nutrition management, and development of new pharmaceutical agents including RAS inhibitors. Finally, we outline a care bundle for AKD patients based on important lessons learned from studies and registries and identify the need for clinical trials of RAS inhibitors or other novel agents to impede ensuing CKD development.
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Affiliation(s)
- Chin-Wei Kung
- Department of Internal Medicine, China Medical University Hospital, China Medical University College of Medicine, Taichung, Taiwan
| | - Yu-Hsiang Chou
- Renal Division, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University College of Medicine, Taipei City, Taiwan
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7
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Davidson G, Helleux A, Vano YA, Lindner V, Fattori A, Cerciat M, Elaidi RT, Verkarre V, Sun CM, Chevreau C, Bennamoun M, Lang H, Tricard T, Fridman WH, Sautes-Fridman C, Su X, Plassard D, Keime C, Thibault-Carpentier C, Barthelemy P, Oudard SM, Davidson I, Malouf GG. Mesenchymal-like Tumor Cells and Myofibroblastic Cancer-Associated Fibroblasts Are Associated with Progression and Immunotherapy Response of Clear Cell Renal Cell Carcinoma. Cancer Res 2023; 83:2952-2969. [PMID: 37335139 DOI: 10.1158/0008-5472.can-22-3034] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 03/24/2023] [Accepted: 06/12/2023] [Indexed: 06/21/2023]
Abstract
Immune checkpoint inhibitors (ICI) represent the cornerstone for the treatment of patients with metastatic clear cell renal cell carcinoma (ccRCC). Despite a favorable response for a subset of patients, others experience primary progressive disease, highlighting the need to precisely understand the plasticity of cancer cells and their cross-talk with the microenvironment to better predict therapeutic response and personalize treatment. Single-cell RNA sequencing of ccRCC at different disease stages and normal adjacent tissue (NAT) from patients identified 46 cell populations, including 5 tumor subpopulations, characterized by distinct transcriptional signatures representing an epithelial-to-mesenchymal transition gradient and a novel inflamed state. Deconvolution of the tumor and microenvironment signatures in public data sets and data from the BIONIKK clinical trial (NCT02960906) revealed a strong correlation between mesenchymal-like ccRCC cells and myofibroblastic cancer-associated fibroblasts (myCAF), which are both enriched in metastases and correlate with poor patient survival. Spatial transcriptomics and multiplex immune staining uncovered the spatial proximity of mesenchymal-like ccRCC cells and myCAFs at the tumor-NAT interface. Moreover, enrichment in myCAFs was associated with primary resistance to ICI therapy in the BIONIKK clinical trial. These data highlight the epithelial-mesenchymal plasticity of ccRCC cancer cells and their relationship with myCAFs, a critical component of the microenvironment associated with poor outcome and ICI resistance. SIGNIFICANCE Single-cell and spatial transcriptomics reveal the proximity of mesenchymal tumor cells to myofibroblastic cancer-associated fibroblasts and their association with disease outcome and immune checkpoint inhibitor response in clear cell renal cell carcinoma.
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Affiliation(s)
- Guillaume Davidson
- Department of Cancer and Functional Genomics, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, Illkirch, France
| | - Alexandra Helleux
- Department of Cancer and Functional Genomics, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, Illkirch, France
| | - Yann A Vano
- Department of Medical Oncology, Hôpital Européen Georges Pompidou, Institut du Cancer Paris CARPEM, APHP, Université Paris Cité, Paris, France
| | - Véronique Lindner
- Department of Pathology, Strasbourg University Hospital, Strasbourg, France
| | - Antonin Fattori
- Department of Pathology, Strasbourg University Hospital, Strasbourg, France
| | - Marie Cerciat
- Genomeast platform, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, 67400 Illkirch, France
| | - Reza T Elaidi
- Association pour la Recherche sur les Thérapeutiques Innovantes en Cancérologie, Paris, France
| | - Virginie Verkarre
- Department of Pathology, Hôpital Européen Georges Pompidou, Institut du Cancer Paris CARPEM, APHP, Université Paris Cité, Paris, France
| | - Cheng-Ming Sun
- Centre des Cordeliers, INSERM, Université de Paris Cité, Sorbonne Université, Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Christine Chevreau
- Department of Medical Oncology, Institut Universitaire du Cancer Toulouse Oncopole, Toulouse, France
| | - Mostefa Bennamoun
- Department of Medical Oncology, Institut Mutualiste Montsouris, Paris, France
| | - Hervé Lang
- Department of Urology, Strasbourg University Hospital, Strasbourg, France
| | - Thibault Tricard
- Department of Urology, Strasbourg University Hospital, Strasbourg, France
| | - Wolf H Fridman
- Centre des Cordeliers, INSERM, Université de Paris Cité, Sorbonne Université, Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Catherine Sautes-Fridman
- Centre des Cordeliers, INSERM, Université de Paris Cité, Sorbonne Université, Equipe labellisée Ligue contre le Cancer, Paris, France
| | - Xiaoping Su
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Damien Plassard
- Genomeast platform, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, 67400 Illkirch, France
| | - Celine Keime
- Genomeast platform, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, 67400 Illkirch, France
| | - Christelle Thibault-Carpentier
- Genomeast platform, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, 67400 Illkirch, France
| | - Philippe Barthelemy
- Department of Medical Oncology, Strasbourg University, Institut de Cancérologie de Strasbourg, Strasbourg, France
| | - Stéphane M Oudard
- Department of Medical Oncology, Hôpital Européen Georges Pompidou, Institut du Cancer Paris CARPEM, APHP, Université Paris Cité, Paris, France
| | - Irwin Davidson
- Department of Cancer and Functional Genomics, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, Illkirch, France
| | - Gabriel G Malouf
- Department of Cancer and Functional Genomics, Institute of Genetics and Molecular and Cellular Biology, CNRS/INSERM/UNISTRA, Illkirch, France
- Department of Medical Oncology, Strasbourg University, Institut de Cancérologie de Strasbourg, Strasbourg, France
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8
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Foresto-Neto O, da Silva ARPA, Cipelli M, Santana-Novelli FPR, Camara NOS. The impact of hypoxia-inducible factors in the pathogenesis of kidney diseases: a link through cell metabolism. Kidney Res Clin Pract 2023; 42:561-578. [PMID: 37448286 PMCID: PMC10565456 DOI: 10.23876/j.krcp.23.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/20/2023] [Accepted: 03/20/2023] [Indexed: 07/15/2023] Open
Abstract
Kidneys are sensitive to disturbances in oxygen homeostasis. Hypoxia and activation of the hypoxia-inducible factor (HIF) pathway alter the expression of genes involved in the metabolism of renal and immune cells, interfering with their functioning. Whether the transcriptional activity of HIF protects the kidneys or participates in the pathogenesis of renal diseases is unclear. Several studies have indicated that HIF signaling promotes fibrosis in experimental models of kidney disease. Other reports showed a protective effect of HIF activation on kidney inflammation and injury. In addition to the direct effect of HIF on the kidneys, experimental evidence indicates that HIF-mediated metabolic shift activates inflammatory cells, supporting the HIF cascade as a link between lung or gut damage and worsening of renal disease. Although hypoxia and HIF activation are present in several scenarios of renal diseases, further investigations are needed to clarify whether interfering with the HIF pathway is beneficial in different pathological contexts.
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Affiliation(s)
- Orestes Foresto-Neto
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Division of Nephrology, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
| | | | - Marcella Cipelli
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Niels Olsen Saraiva Camara
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Division of Nephrology, Department of Medicine, Federal University of São Paulo, São Paulo, Brazil
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9
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Li ZL, Wang B, Wen Y, Wu QL, Lv LL, Liu BC. Disturbance of Hypoxia Response and Its Implications in Kidney Diseases. Antioxid Redox Signal 2022; 37:936-955. [PMID: 35044244 DOI: 10.1089/ars.2021.0271] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Significance: The disturbance of the hypoxia response system is closely related to human diseases, because it is essential for the maintenance of homeostasis. Given the significant role of the hypoxia response system in human health, therapeutic applications targeting prolyl hydroxylase-hypoxia-inducible factor (HIF) signaling have been attempted. Thus, systemically reviewing the hypoxia response-based therapeutic strategies is of great significance. Recent Advances: Disturbance of the hypoxia response is a characteristic feature of various diseases. Targeting the hypoxia response system is, thus, a promising therapeutic strategy. Interestingly, several compounds and drugs are currently under clinical trials, and some have already been approved for use in the treatment of certain human diseases. Critical Issues: We summarize the molecular mechanisms of the hypoxia response system and address the potential therapeutic implications in kidney diseases. Given that the effects of hypoxia response in kidney diseases are likely to depend on the pathological context, specific cell types, and the differences in the activation pattern of HIF isoforms, the precise application is critical for the treatment of kidney diseases. Although HIF-PHIs (HIF-PHD inhibitors) have been proven to be effective and well tolerated in chronic kidney disease patients with anemia, the potential on-target consequence of HIF activation and some outstanding questions warrant further consideration. Future Direction: The mechanism of the hypoxia response system disturbance remains unclear. Elucidation of the molecular mechanism of hypoxia response and its precise effects on kidney diseases warrants clarification. Considering the complexity of the hypoxia response system and multiple biological processes controlled by HIF signaling, the development of more specific inhibitors is highly warranted. Antioxid. Redox Signal. 37, 936-955.
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Affiliation(s)
- Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Yi Wen
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Qiu-Li Wu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, China
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10
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Wang L, Feng J, Deng Y, Yang Q, Wei Q, Ye D, Rong X, Guo J. CCAAT/Enhancer-Binding Proteins in Fibrosis: Complex Roles Beyond Conventional Understanding. RESEARCH (WASHINGTON, D.C.) 2022; 2022:9891689. [PMID: 36299447 PMCID: PMC9575473 DOI: 10.34133/2022/9891689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/18/2022] [Indexed: 07/29/2023]
Abstract
CCAAT/enhancer-binding proteins (C/EBPs) are a family of at least six identified transcription factors that contain a highly conserved basic leucine zipper domain and interact selectively with duplex DNA to regulate target gene expression. C/EBPs play important roles in various physiological processes, and their abnormal function can lead to various diseases. Recently, accumulating evidence has demonstrated that aberrant C/EBP expression or activity is closely associated with the onset and progression of fibrosis in several organs and tissues. During fibrosis, various C/EBPs can exert distinct functions in the same organ, while the same C/EBP can exert distinct functions in different organs. Modulating C/EBP expression or activity could regulate various molecular processes to alleviate fibrosis in multiple organs; therefore, novel C/EBPs-based therapeutic methods for treating fibrosis have attracted considerable attention. In this review, we will explore the features of C/EBPs and their critical functions in fibrosis in order to highlight new avenues for the development of novel therapies targeting C/EBPs.
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Affiliation(s)
- Lexun Wang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiaojiao Feng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yanyue Deng
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Qianqian Yang
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Quxing Wei
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Dewei Ye
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xianglu Rong
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine, China
- Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, China
- Guangdong Key Laboratory of Metabolic Disease Prevention and Treatment of Traditional Chinese Medicine, China
- Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou, China
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11
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Hypoxia-Inducible Factors and Diabetic Kidney Disease—How Deep Can We Go? Int J Mol Sci 2022; 23:ijms231810413. [PMID: 36142323 PMCID: PMC9499602 DOI: 10.3390/ijms231810413] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022] Open
Abstract
Diabetes is one of the leading causes of chronic kidney disease (CKD), and multiple underlying mechanisms involved in pathogenesis of diabetic nephropathy (DN) have been described. Although various treatments and diagnosis applications are available, DN remains a clinical and economic burden, considering that about 40% of type 2 diabetes patients will develop nephropathy. In the past years, some research found that hypoxia response and hypoxia-inducible factors (HIFs) play critical roles in the pathogenesis of DN. Hypoxia-inducible factors (HIFs) HIF-1, HIF-2, and HIF-3 are the main mediators of metabolic responses to the state of hypoxia, which seems to be the one of the earliest events in the occurrence and progression of diabetic kidney disease (DKD). The abnormal activity of HIFs seems to be of crucial importance in the pathogenesis of diseases, including nephropathies. Studies using transcriptome analysis confirmed by metabolome analysis revealed that HIF stabilizers (HIF-prolyl hydroxylase inhibitors) are novel therapeutic agents used to treat anemia in CKD patients that not only increase endogenous erythropoietin production, but also could act by counteracting the metabolic alterations in incipient diabetic kidney disease and relieve oxidative stress in the renal tissue. In this review, we present the newest data regarding hypoxia response and HIF involvement in the pathogenesis of diabetic nephropathy and new therapeutic insights, starting from improving kidney oxygen homeostasis.
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12
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Zhu X, Jiang L, Wei X, Long M, Du Y. Roxadustat: Not just for anemia. Front Pharmacol 2022; 13:971795. [PMID: 36105189 PMCID: PMC9465375 DOI: 10.3389/fphar.2022.971795] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Roxadustat is a recently approved hypoxia-inducible factor prolyl hydroxylase inhibitor that has demonstrated favorable safety and efficacy in the treatment of renal anemia. Recent studies found it also has potential for the treatment of other hypoxia-related diseases. Although clinical studies have not yet found significant adverse or off-target effects of roxadustat, clinicians must be vigilant about these possible effects. Hypoxia-inducible factor regulates the expression of many genes and physiological processes in response to a decreased level of oxygen, but its role in the pathogenesis of different diseases is complex and controversial. In addition to increasing the expression of hypoxia-inducible factor, roxadustat also has some effects that may be HIF-independent, indicating some potential off-target effects. This article reviews the pharmacological characteristics of roxadustat, its current status in the treatment of renal anemia, and its possible effects on other pathological mechanisms.
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Affiliation(s)
- Xiaoyu Zhu
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Lili Jiang
- Physical Examination Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Mengtuan Long
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, China
- *Correspondence: Yujun Du,
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13
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Ponticelli C, Citterio F. Non-Immunologic Causes of Late Death-Censored Kidney Graft Failure: A Personalized Approach. J Pers Med 2022; 12:1271. [PMID: 36013220 PMCID: PMC9410103 DOI: 10.3390/jpm12081271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 11/29/2022] Open
Abstract
Despite continuous advances in surgical and immunosuppressive protocols, the long-term survival of transplanted kidneys is still far from being satisfactory. Antibody-mediated rejection, recurrent autoimmune diseases, and death with functioning graft are the most frequent causes of late-kidney allograft failure. However, in addition to these complications, a number of other non-immunologic events may impair the function of transplanted kidneys and directly or indirectly lead to their failure. In this narrative review, we will list and discuss the most important nonimmune causes of late death-censored kidney graft failure, including quality of the donated kidney, adherence to prescriptions, drug toxicities, arterial hypertension, dyslipidemia, new onset diabetes mellitus, hyperuricemia, and lifestyle of the renal transplant recipient. For each of these risk factors, we will report the etiopathogenesis and the potential consequences on graft function, keeping in mind that in many cases, two or more risk factors may negatively interact together.
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Affiliation(s)
| | - Franco Citterio
- Renal Transplant Unit, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Università Cattolica Sacro Cuore, 00168 Roma, Italy
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14
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Cardiovascular Risk after Kidney Transplantation: Causes and Current Approaches to a Relevant Burden. J Pers Med 2022; 12:jpm12081200. [PMID: 35893294 PMCID: PMC9329988 DOI: 10.3390/jpm12081200] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 11/17/2022] Open
Abstract
Background. Cardiovascular disease is a frequent complication after kidney transplantation and represents the leading cause of mortality in this population. Material and Methods. We searched for the relevant articles in the National Institutes of Health library of medicine, transplant, cardiologic and nephrological journals. Results. The pathogenesis of cardiovascular disease in kidney transplant is multifactorial. Apart from non-modifiable risk factors, such as age, gender, genetic predisposition and ethnicity, several traditional and non-traditional modifiable risk factors contribute to its development. Traditional factors, such as diabetes, hypertension and dyslipidemia, may be present before and may worsen after transplantation. Immunosuppressants and impaired graft function may strongly influence the exacerbation of these comorbidities. However, in the last years, several studies showed that many other cardiovascular risk factors may be involved in kidney transplantation, including hyperuricemia, inflammation, low klotho and elevated Fibroblast Growth Factor 23 levels, deficient levels of vitamin D, vascular calcifications, anemia and poor physical activity and quality of life. Conclusions. The timely and effective treatment of time-honored and recently discovered modifiable risk factors represent the basis of the prevention of cardiovascular complications in kidney transplantation. Reduction of cardiovascular risk can improve the life expectancy, the quality of life and the allograft function and survival.
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15
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Wakabayashi T, Nakamura S, Nakao Y, Yamato S, Htun Y, Mitsuie T, Morimoto A, Arioka M, Koyano K, Konishi Y, Miki T, Ueno M, Kusaka T. Hypothermia cannot ameliorate renal fibrosis after asphyxia in the newborn piglet. Pediatr Int 2022; 64:e14961. [PMID: 34415096 DOI: 10.1111/ped.14961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 08/10/2021] [Accepted: 08/18/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND The effects of therapeutic hypothermia (TH) on renal function are not widely reported, especially in longer term animal models. The hypothesis of this study was that TH of the kidneys of hypoxic-ischemic newborn piglets would reduce pathological renal fibrosis. METHODS Twenty-five newborn piglets obtained within 24 h of birth were classified into a control group (n = 5), an hypoxic insult with normothermia (HI-NT) group (n = 12), and an hypoxic insult with TH (HI-TH) group (33.5 °C ± 0.5 °C for 24 h; n = 8). Five days after the insult, all piglets were sacrificed under deep anesthesia by isoflurane inhalation. The kidneys were perfused with phosphate-buffered paraformaldehyde and immersed in formalin buffer. Territory fibrosis was studied and scored in the renal medulla using Azan staining. RESULTS Fibrosis area scores (means ± standard deviations) based on Azan staining were 1.00 ± 0.46 in the control group, 2.85 ± 0.93 in the HI-NT group, and 3.58 ± 1.14 in the HI-TH group. The fibrosis area of the HI-NT and HI-TH groups was larger than that of the control. The HI-NT and HI-TH groups were not statistically different. CONCLUSIONS Renal fibrosis is affected by perinatal asphyxia and cannot be prevented by TH, based on histopathological findings.
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Affiliation(s)
- Takayuki Wakabayashi
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Shinji Nakamura
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Yasuhiro Nakao
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Satoshi Yamato
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Yinmon Htun
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Tsutomu Mitsuie
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Aya Morimoto
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Makoto Arioka
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Kosuke Koyano
- Maternal Perinatal Center, Faculty of Medicine, Kagawa University, Takamatsu, Japan
| | - Yukihiko Konishi
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
| | - Takanori Miki
- Department of Anatomy and Neurobiology, Faculty of Medicine, Kagawa University, Mikicho, Japan
| | - Masaki Ueno
- Department of Pathology and Host Defense, Faculty of Medicine, Kagawa University, Mikicho, Japan
| | - Takashi Kusaka
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Miki-cho, Japan
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16
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Wei X, Hou Y, Long M, Jiang L, Du Y. Molecular mechanisms underlying the role of hypoxia-inducible factor-1 α in metabolic reprogramming in renal fibrosis. Front Endocrinol (Lausanne) 2022; 13:927329. [PMID: 35957825 PMCID: PMC9357883 DOI: 10.3389/fendo.2022.927329] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Renal fibrosis is the result of renal tissue damage and repair response disorders. If fibrosis is not effectively blocked, it causes loss of renal function, leading to chronic renal failure. Metabolic reprogramming, which promotes cell proliferation by regulating cellular energy metabolism, is considered a unique tumor cell marker. The transition from oxidative phosphorylation to aerobic glycolysis is a major feature of renal fibrosis. Hypoxia-inducible factor-1 α (HIF-1α), a vital transcription factor, senses oxygen status, induces adaptive changes in cell metabolism, and plays an important role in renal fibrosis and glucose metabolism. This review focuses on the regulation of proteins related to aerobic glycolysis by HIF-1α and attempts to elucidate the possible regulatory mechanism underlying the effects of HIF-1α on glucose metabolism during renal fibrosis, aiming to provide new ideas for targeted metabolic pathway intervention in renal fibrosis.
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Affiliation(s)
- Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Yue Hou
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Mengtuan Long
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
| | - Lili Jiang
- Department of Physical Examination Center, The First Hospital of Jilin University, Changchun, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, Changchun, China
- *Correspondence: Yujun Du,
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17
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Cheng YQ, Yue YX, Cao HM, Geng WC, Wang LX, Hu XY, Li HB, Bian Q, Kong XL, Liu JF, Kong DL, Guo DS, Wang YB. Coassembly of hypoxia-sensitive macrocyclic amphiphiles and extracellular vesicles for targeted kidney injury imaging and therapy. J Nanobiotechnology 2021; 19:451. [PMID: 34961540 PMCID: PMC8714429 DOI: 10.1186/s12951-021-01192-w] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/07/2021] [Indexed: 12/01/2022] Open
Abstract
Background Hypoxia is a major contributor to global kidney diseases. Targeting hypoxia is a promising therapeutic option against both acute kidney injury and chronic kidney disease; however, an effective strategy that can achieve simultaneous targeted kidney hypoxia imaging and therapy has yet to be established. Herein, we fabricated a unique nano-sized hypoxia-sensitive coassembly (Pc/C5A@EVs) via molecular recognition and self-assembly, which is composed of the macrocyclic amphiphile C5A, the commercial dye sulfonated aluminum phthalocyanine (Pc) and mesenchymal stem cell-excreted extracellular vesicles (MSC-EVs). Results In murine models of unilateral or bilateral ischemia/reperfusion injury, MSC-EVs protected the Pc/C5A complex from immune metabolism, prolonged the circulation time of the complex, and specifically led Pc/C5A to hypoxic kidneys via surface integrin receptor α4β1 and αLβ2, where Pc/C5A released the near-infrared fluorescence of Pc and achieved enhanced hypoxia-sensitive imaging. Meanwhile, the coassembly significantly recovered kidney function by attenuating cell apoptosis, inhibiting the progression of renal fibrosis and reducing tubulointerstitial inflammation. Mechanistically, the Pc/C5A coassembly induced M1-to-M2 macrophage transition by inhibiting the HIF-1α expression in hypoxic renal tubular epithelial cells (TECs) and downstream NF-κB signaling pathway to exert their regenerative effects. Conclusion This synergetic nanoscale coassembly with great translational potential provides a novel strategy for precise kidney hypoxia diagnosis and efficient kidney injury treatment. Furthermore, our strategy of coassembling exogenous macrocyclic receptors with endogenous cell-derived membranous structures may offer a functional platform to address multiple clinical needs. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01192-w.
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Affiliation(s)
- Yuan-Qiu Cheng
- Nankai University School of Medicine, Tianjin, 300071, China
| | - Yu-Xin Yue
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Hong-Mei Cao
- Nankai University School of Medicine, Tianjin, 300071, China.,Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences and Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - Wen-Chao Geng
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Lan-Xing Wang
- Nankai University School of Medicine, Tianjin, 300071, China
| | - Xin-Yue Hu
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Hua-Bin Li
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Qiang Bian
- National Pesticide Engineering Research Center, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xiang-Lei Kong
- College of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Jian-Feng Liu
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences and Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China
| | - De-Ling Kong
- The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Dong-Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China.
| | - Yue-Bing Wang
- Nankai University School of Medicine, Tianjin, 300071, China. .,Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China.
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18
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Kibler KV, Szczerba M, Lake D, Roeder AJ, Rahman M, Hogue BG, Roy Wong LY, Perlman S, Li Y, Jacobs BL. Intranasal immunization with a vaccinia virus vaccine vector expressing pre-fusion stabilized SARS-CoV-2 spike fully protected mice against lethal challenge with the heavily mutated mouse-adapted SARS2-N501Y MA30 strain of SARS-CoV-2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 34909775 DOI: 10.1101/2021.07.28.454201] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The Omicron SARS-CoV-2 variant has been designated a variant of concern because its spike protein is heavily mutated. In particular, Omicron spike is mutated at 5 positions (K417, N440, E484, Q493 and N501) that have been associated with escape from neutralizing antibodies induced by either infection with or immunization against the early Washington strain of SARS-CoV-2. The mouse-adapted strain of SARS-CoV-2, SARS2-N501Y MA30 , contains a spike that is also heavily mutated, with mutations at 4 of the 5 positions in Omicron spike associated with neutralizing antibody escape (K417, E484, Q493 and N501). In this manuscript we show that intranasal immunization with a pre-fusion stabilized Washington strain spike, expressed from a highly attenuated, replication-competent vaccinia virus construct, NYVAC-KC, fully protected mice against disease and death from SARS2-N501Y MA30 . Similarly, immunization by scarification on the skin fully protected against death, but not from mild disease. This data demonstrates that Washington strain spike, when expressed from a highly attenuated, replication-competent poxvirus, administered without parenteral injection can fully protect against the heavily mutated mouse-adapted SARS2-N501Y MA30 .
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Affiliation(s)
- Karen V Kibler
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
| | - Mateusz Szczerba
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
| | - Douglas Lake
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Alexa J Roeder
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Masmudur Rahman
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
| | - Brenda G Hogue
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Lok-Yin Roy Wong
- Department of Microbiology and Immunology, University of Iowa, Iowa City, Iowa, USA
| | - Stanley Perlman
- Department of Microbiology and Immunology, University of Iowa, Iowa City, Iowa, USA
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Yize Li
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Bertram L Jacobs
- Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
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19
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Moroni G, Porata G, Raffiotta F, Quaglini S, Frontini G, Sacchi L, Binda V, Calatroni M, Reggiani F, Banfi G, Ponticelli C. Beyond ISN/RPS Lupus Nephritis Classification: Adding Chronicity Index to Clinical Variables Predicts Kidney Survival. KIDNEY360 2021; 3:122-132. [PMID: 35368572 PMCID: PMC8967609 DOI: 10.34067/kid.0005512021] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/01/2021] [Indexed: 01/10/2023]
Abstract
Background A renewed interest for activity and chronicity indices as predictors of lupus nephritis (LN) outcome has emerged. Revised National Institutes of Health activity and chronicity indices have been proposed to classify LN lesions, but they should be validated by future studies. The aims of this study were (1) to detect the histologic features associated with the development of kidney function impairment (KFI), and (2) to identify the best clinical-histologic model to predict KFI at time of kidney biopsy. Methods Patients with LN who had more than ten glomeruli per kidney biopsy specimen were admitted to the study. Univariate and multivariate logistic regression and Cox proportional hazards models were used to investigate whether activity and chronicity indices could predict KFI development. Results Among 203 participants with LN followed for 14 years, correlations were found between the activity index, and its components, and clinical-laboratory signs of active LN at baseline. The chronicity index was correlated with serum creatinine. Thus, serum creatinine was significantly and directly correlated with both activity and chronicity indices. In the multivariate analysis, glomerulosclerosis (OR, 3.05; 95% CI, 1.17 to 7.91; P=0.02) and fibrous crescents (OR, 6.84; 95% CI, 3.22 to 14.52; P<0.001) associated with either moderate/severe tubular atrophy (OR, 3.17; 95% CI, 1.04 to 9.64; P=0.04), or with interstitial fibrosis (OR, 2.36; 95% CI, 1.05 to 5.32; P=0.04), predicted KFI. Considering both clinical and histologic features, serum creatinine (OR, 1.68; 95% CI, 1.31 to 2.15; P<0.001), arterial hypertension (OR, 4.64; 95% CI, 1.90 to 11.32; P<0.001), glomerulosclerosis (OR, 2.12; 95% CI, 1.00 to 4.50; P=0.05), and fibrous crescents (OR, 5.18; 95% CI, 2.43 to 11.04; P<0.001) independently predicted KFI. Older age (P<0.001) and longer delay between clinical onset of LN and kidney biopsy (P<0.001) were significantly correlated with baseline chronicity index. Conclusions The chronicity index and its components, but not the activity index, were significantly associated with an impairment of kidney function. The Cox model showed that serum creatinine, arterial hypertension, chronic glomerular lesions, and delay in kidney biopsy predicted KFI. These data reinforce the importance of timely kidney biopsy in LN.
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Affiliation(s)
- Gabriella Moroni
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Giulia Porata
- Nephrology and Dialysis Unit, San Paolo Hospital, Milan, Italy
| | | | - Silvana Quaglini
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Giulia Frontini
- Nephrology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Lucia Sacchi
- Department of Electrical, Computer and Biomedical Engineering, University of Pavia, Pavia, Italy
| | - Valentina Binda
- Nephrology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marta Calatroni
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
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Contribution of Oxidative Stress to HIF-1-Mediated Profibrotic Changes during the Kidney Damage. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6114132. [PMID: 34712385 PMCID: PMC8548138 DOI: 10.1155/2021/6114132] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/09/2021] [Indexed: 12/01/2022]
Abstract
Hypoxia and oxidative stress are the common causes of various types of kidney injury. During recent years, the studies on hypoxia inducible factor- (HIF-) 1 attract more and more attention, which can not only mediate hypoxia adaptation but also contribute to profibrotic changes. Through analyzing related literatures, we found that oxidative stress can regulate the expression and activity of HIF-1α through some signaling molecules, such as prolyl hydroxylase domain-containing protein (PHD), PI-3K, and microRNA. And oxidative stress can take part in inflammation, epithelial-mesenchymal transition, and extracellular matrix deposition mediated by HIF-1 via interacting with classical NF-κB and TGF-β signaling pathways. Therefore, based on previous literatures, this review summarizes the contribution of oxidative stress to HIF-1-mediated profibrotic changes during the kidney damage, in order to further understand the role of oxidative stress in renal fibrosis.
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21
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Ali S, Singh A, Sharief N, Yadav M, Siddiqui S, Pandey V, Raikwar A, Singh A. Coronaviruses: An overview with special emphasis on COVID-19 outbreak with musculoskeletal manifestations. World J Orthop 2021; 12:620-628. [PMID: 34631446 PMCID: PMC8472448 DOI: 10.5312/wjo.v12.i9.620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/28/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
An acute respiratory illness caused by a novel coronavirus, namely, severe acute respiratory syndrome coronavirus 2, the virus that causes coronavirus disease 2019 (COVID-19), began spreading across China in late December 2019. The disease gained global attention as it spread worldwide. Since the COVID-19 pandemic began, many studies have focused on the impact of the disease on conditions such as diabetes, cardiovascular disease, pulmonary disorders, and renal malfunction. However, few studies have focused on musculoskeletal disorders related to COVID-19 infection. In this review, we update the current knowledge on the coronavirus with special reference to its effects during and after the pandemic on musculoskeletal aliments, which may inform clinical practice.
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Affiliation(s)
- Sabir Ali
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Ajai Singh
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Nayeem Sharief
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Manish Yadav
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Salma Siddiqui
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Vaishnavi Pandey
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Archana Raikwar
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
| | - Anamika Singh
- Department of Paediatric Orthopaedics, King George’s Medical University, Lucknow 226003, Uttar Pradesh, India
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22
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Li ZL, Ji JL, Wen Y, Cao JY, Kharbuja N, Ni WJ, Yin D, Feng ST, Liu H, Lv LL, Liu BC, Wang B. HIF-1α is transcriptionally regulated by NF-κB in acute kidney injury. Am J Physiol Renal Physiol 2021; 321:F225-F235. [PMID: 34229478 DOI: 10.1152/ajprenal.00119.2021] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Oxygen homeostasis disturbances play a critical role in the pathogenesis of acute kidney injury (AKI). The transcription factor hypoxia-inducible factor-1 (HIF-1) is a master regulator of adaptive responses to hypoxia. Aside from posttranslational hydroxylation, the mechanism of HIF-1 regulation in AKI remains largely unclear. In this study, the mechanism of HIF-α regulation in AKI was investigated. We found that tubular HIF-1α expression significantly increased at the transcriptional level in ischemia-reperfusion-, unilateral ureteral obstruction-, and sepsis-induced AKI models, which was closely associated with macrophage-dependent inflammation. Meanwhile, NF-κB, which plays a central role in the inflammation response, was involved in the increasing expression of HIF-1α in AKI, as evidenced by pharmacological modulation (NF-κB inhibitor BAY11-7082). Mechanistically, NF-κB directly bound to the HIF-1α promoter and enhanced its transcription, which occurred not only under hypoxic conditions but also under normoxic conditions. Moreover, the induced HIF-1α by inflammation protected against tubular injury in AKI. Thus, our findings not only provide novel insights into HIF-1 regulation in AKI but also offer to understand the pathophysiology of kidney diseases.NEW & NOTEWORTHY Here, the mechanism of hypoxia-inducible factor-α (HIF-α) regulation in acute kidney injury (AKI) was investigated. We found that tubular HIF-1α expression significantly increased at the transcriptional level, which was closely associated with macrophage-dependent inflammation. Meanwhile, NF-κB was involved in the increasing expression of HIF-1α in AKI. Mechanistically, NF-κB directly bound to the HIF-1α promoter and enhanced its transcription. Our findings not only provide novel insights into HIF-1 regulation in AKI but also offer to understand the pathophysiology of kidney diseases.
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Affiliation(s)
- Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Jia-Ling Ji
- Department of Pediatric Nephrology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Yi Wen
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Jing-Yuan Cao
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Naresh Kharbuja
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Wei-Jie Ni
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Di Yin
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Song-Tao Feng
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Hong Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Lin-Li Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, People's Republic of China
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23
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MacLaughlin HL, Pike M, Selby NM, Siew E, Chinchilli VM, Guide A, Stewart TG, Himmelfarb J, Go AS, Parikh CR, Ghahramani N, Kaufman J, Ikizler TA, Robinson-Cohen C. Body mass index and chronic kidney disease outcomes after acute kidney injury: a prospective matched cohort study. BMC Nephrol 2021; 22:200. [PMID: 34049502 PMCID: PMC8161937 DOI: 10.1186/s12882-021-02400-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/06/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) and obesity are independent risk factors for chronic kidney disease (CKD). This study aimed to determine if obesity modifies risk for CKD outcomes after AKI. METHODS This prospective multisite cohort study followed adult survivors after hospitalization, with or without AKI. The primary outcome was a combined CKD event of incident CKD, progression of CKD and kidney failure, examined using time-to-event Cox proportional hazards models, adjusted for diabetes status, age, pre-existing CKD, cardiovascular disease status and intensive care unit admission, and stratified by study center. Body mass index (BMI) was added as an interaction term to examine effect modification by body size. RESULTS The cohort included 769 participants with AKI and 769 matched controls. After median follow-up of 4.3 years, among AKI survivors, the rate of the combined CKD outcome was 84.7 per1000-person-years with BMI ≥30 kg/m2, 56.4 per 1000-person-years with BMI 25-29.9 kg/m2, and 72.6 per 1000-person-years with BMI 20-24.9 kg/m2. AKI was associated with a higher risk of combined CKD outcomes; adjusted-HR 2.43 (95%CI 1.87-3.16), with no evidence that this was modified by BMI (p for interaction = 0.3). After adjustment for competing risk of death, AKI remained associated with a higher risk of the combined CKD outcome (subdistribution-HR 2.27, 95%CI 1.76-2.92) and similarly, there was no detectable effect of BMI modifying this risk. CONCLUSIONS In this post-hospitalization cohort, we found no evidence for obesity modifying the association between AKI and development or progression of CKD.
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Affiliation(s)
- Helen L MacLaughlin
- Queensland University of Technology, School of Exercise and Nutrition Sciences, Victoria Park Road, Kelvin Grove, QLD, Australia.
- Royal Brisbane and Women's Hospital, Herston, QLD, Australia.
| | - Mindy Pike
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nicholas M Selby
- Centre for Kidney Research and Innovation, University of Nottingham, Derby, UK
| | - Edward Siew
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Vernon M Chinchilli
- Division of Biostatistics and Informatics, Pennsylvania State University, Hershey, PA, USA
| | - Andrew Guide
- Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Thomas G Stewart
- Department of Biostatistics, Vanderbilt University School of Medicine, Nashville, TN, USA
| | | | - Alan S Go
- Kaiser Permanente Northern California, Oakland, CA, USA
- University of California, San Francisco, San Francisco, CA, USA
| | - Chirag R Parikh
- Division of Nephrology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Nasrollah Ghahramani
- Division of Nephrology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
| | - James Kaufman
- Renal Section, Veterans Affairs New York Harbor Health Care System and New York University School of Medicine, New York, NY, USA
| | - T Alp Ikizler
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, USA
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24
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Ponticelli C, Campise MR. The inflammatory state is a risk factor for cardiovascular disease and graft fibrosis in kidney transplantation. Kidney Int 2021; 100:536-545. [PMID: 33932457 DOI: 10.1016/j.kint.2021.04.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/07/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023]
Abstract
Several factors, such as donor brain death, ischemia-reperfusion injury, rejection, infection, and chronic allograft dysfunction, may induce an inflammatory state in kidney transplantation. Furthermore, inflammatory cells, cytokines, growth factors, complement and coagulation cascade create an unbalanced interaction with innate and adaptive immunity, which are both heavily involved in atherogenesis. The crosstalk between inflammation and thrombosis may lead to a prothrombotic state and impaired fibrinolysis in kidney transplant recipients increasing the risk of cardiovascular disease. Inflammation is also associated with elevated levels of fibroblast growth factor 23 and low levels of Klotho, which contribute to major adverse cardiovascular events. Hyperuricemia, glucose intolerance, arterial hypertension, dyslipidemia, and physical inactivity may create a condition called metaflammation that concurs in atherogenesis. Another major consequence of the inflammatory state is the development of chronic hypoxia that through the mediation of interleukins 1 and 6, angiotensin II, and transforming growth factor beta can result in excessive accumulation of extracellular matrix, which can disrupt and replace functional parenchyma, leading to interstitial fibrosis and chronic allograft dysfunction. Lifestyle and regular physical activity may reduce inflammation. Several drugs have been proposed to control the graft inflammatory state, including low-dose aspirin, statins, renin-angiotensin inhibitors, xanthine-oxidase inhibitors, vitamin D supplements, and interleukin-6 blockade. However, no prospective controlled trial with these measures has been conducted in kidney transplantation.
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Affiliation(s)
- Claudio Ponticelli
- Division of Nephrology, Ospedale Maggiore Policlinico, Milano, Italy (retired).
| | - Maria Rosaria Campise
- Division of Nephrology and Dialysis, Ca' Granda Foundation, Scientific Institute Ospedale Maggiore Policlinico di Milano, Milano, Italy
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25
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Han M, Li S, Xie H, Liu Q, Wang A, Hu S, Zhao X, Kong Y, Wang W, Li C. Activation of TGR5 restores AQP2 expression via the HIF pathway in renal ischemia-reperfusion injury. Am J Physiol Renal Physiol 2021; 320:F308-F321. [PMID: 33427060 DOI: 10.1152/ajprenal.00577.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/22/2020] [Indexed: 12/28/2022] Open
Abstract
Renal ischemia-reperfusion (I/R) injury is associated with markedly reduced protein expression of aquaporins (AQPs). Membrane G protein-coupled bile acid receptor-1 (TGR5) has shown protective roles in some kidney diseases. The purpose of the current study was to investigate whether activation of TGR5 prevented the decreased protein expression of AQPs in rodents with renal I/R injury and potential mechanisms. TGR5 agonist lithocholic acid (LCA) treatment reduced polyuria after renal I/R injury in rats. LCA prevented the decreased abundance of AQP2 protein and upregulated hypoxia-inducible factor (HIF)-1α protein expression, which were associated with decreased protein abundance of NF-κB p65 and IL-1β. After renal I/R, mice with tgr5 gene deficiency exhibited further decreases in AQP2 and HIF-1α protein abundance and increases of IL-1β and NF-κB p65 protein expression compared with wild-type mice. In primary cultured inner medullary collecting duct cells with hypoxia/reoxygenation, LCA induced markedly increased protein expression of AQP2 and HIF-1α, which were partially prevented by the PKA inhibitor H89. FG4592, a prolyl-4-hydroxylase domain-containing protein inhibitor, increased HIF-1α and AQP2 protein abundance in association with decreased NF-κB p65 protein expression in inner medullary collecting duct cells with hypoxia/reoxygenation. In conclusion, TGR5 stimulation by LCA prevented downregulation of renal AQPs in kidney with I/R injury, likely through activating HIF-1α signaling and suppressing inflammatory responses.NEW & NOTEWORTHY Stimulation of the membrane G protein-coupled bile acid receptor TGR5 by lithocholic acid (LCA) reduced polyuria in rats with renal ischemia-reperfusion (I/R) injury. LCA increased abundance of aquaporin-2 (AQP2) protein and upregulated hypoxia-inducible factor (HIF)-1α protein expression in association with decreased NF-κB p65 and IL-1β. After I/R, mice with tgr5 gene deficiency exhibited more severe decreases in AQP2 and HIF-1α protein abundance and inflammatory responses. TGR5 activation exhibits a protective role in acute renal injury induced by I/R.
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Affiliation(s)
- Mengke Han
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Suchun Li
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Haixia Xie
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Qiaojuan Liu
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ani Wang
- Cardiovascular Center, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Shan Hu
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiaoduo Zhao
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yonglun Kong
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Weidong Wang
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Pathophysiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Department of Nephrology, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Chunling Li
- Institute of Hypertension, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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26
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HIF in Nephrotoxicity during Cisplatin Chemotherapy: Regulation, Function and Therapeutic Potential. Cancers (Basel) 2021; 13:cancers13020180. [PMID: 33430279 PMCID: PMC7825709 DOI: 10.3390/cancers13020180] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/27/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Cisplatin is a widely used chemotherapy drug, but its use and efficacy are limited by its nephrotoxicity. HIF has protective effects against kidney injury during cisplatin chemotherapy, but it may attenuate the anti-cancer effect of cisplatin. In this review, we describe the role and regulation of HIF in cisplatin-induced nephrotoxicity and highlight the therapeutic potential of targeting HIF in chemotherapy. Abstract Cisplatin is a highly effective, broad-spectrum chemotherapeutic drug, yet its clinical use and efficacy are limited by its side effects. Particularly, cancer patients receiving cisplatin chemotherapy have high incidence of kidney problems. Hypoxia-inducible factor (HIF) is the “master” transcription factor that is induced under hypoxia to trans-activate various genes for adaptation to the low oxygen condition. Numerous studies have reported that HIF activation protects against AKI and promotes kidney recovery in experimental models of cisplatin-induced acute kidney injury (AKI). In contrast, little is known about the effects of HIF on chronic kidney problems following cisplatin chemotherapy. Prolyl hydroxylase (PHD) inhibitors are potent HIF inducers that recently entered clinical use. By inducing HIF, PHD inhibitors may protect kidneys during cisplatin chemotherapy. However, HIF activation by PHD inhibitors may reduce the anti-cancer effect of cisplatin in tumors. Future studies should test PHD inhibitors in tumor-bearing animal models to verify their effects in kidneys and tumors.
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27
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Ullah MM, Basile DP. Role of Renal Hypoxia in the Progression From Acute Kidney Injury to Chronic Kidney Disease. Semin Nephrol 2020; 39:567-580. [PMID: 31836039 DOI: 10.1016/j.semnephrol.2019.10.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Over the past 20 years, there has been an increased appreciation of the long-term sequelae of acute kidney injury (AKI) and the potential development of chronic kidney disease (CKD). Several pathophysiologic features have been proposed to mediate AKI to CKD progression including maladaptive alterations in tubular, interstitial, inflammatory, and vascular cells. These alterations likely interact to culminate in the progression to CKD. In this article we focus primarily on evidence of vascular rarefaction secondary to AKI, and the potential mechanisms by which rarefaction occurs in relation to other alterations in tubular and interstitial compartments. We further focus on the potential that rarefaction contributes to renal hypoxia. Consideration of the role of hypoxia in AKI to CKD transition focuses on experimental evidence of persistent renal hypoxia after AKI and experimental maneuvers to evaluate the influence of hypoxia, per se, in progressive disease. Finally, consideration of methods to evaluate hypoxia in patients is provided with the suggestion that noninvasive measurement of renal hypoxia may provide insight into progression in post-AKI patients.
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Affiliation(s)
- Md Mahbub Ullah
- Department of Anatomy, Cell Biology and Physiology, Indiana University, Indianapolis, IN
| | - David P Basile
- Department of Medicine, Division of Nephrology, Indiana University, Indianapolis, IN.
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28
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Wei X, Zhu X, Jiang L, Huang X, Zhang Y, Zhao D, Du Y. Recent advances in understanding the role of hypoxia-inducible factor 1α in renal fibrosis. Int Urol Nephrol 2020; 52:1287-1295. [PMID: 32378138 DOI: 10.1007/s11255-020-02474-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 04/15/2020] [Indexed: 12/11/2022]
Abstract
Renal fibrosis is the most common pathological manifestation of chronic kidney disease (CKD), and with numerous influencing factors, its pathogenesis is complex. Epithelial-mesenchymal transition (EMT) is known to promote the progression of renal fibrosis via alterations in the secreted proteome. Moreover, blocking or even reversing EMT can effectively reduce the degree of fibrosis. As such, targeting the key molecules responsible for promoting EMT may be an effective strategy for inhibiting renal fibrosis. Research in recent years has demonstrated that hypoxia-inducible factor 1α (HIF-1α) acts to promote renal fibrosis through regulation of EMT. However, the relationship between HIF-1α and EMT remains incompletely understood. In the present review, the underlying mechanism of the interaction between HIF-1α and EMT is explored to provide novel insight into the pathogenesis of renal fibrosis and new ideas for early targeted intervention.
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Affiliation(s)
- Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiaoyu Zhu
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Lili Jiang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiu Huang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yangyang Zhang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Dan Zhao
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China.
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29
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Li X, Yang S, Yan M, Guan N, Li J, Xie Q, Hao C. Interstitial HIF1A induces an estimated glomerular filtration rate decline through potentiating renal fibrosis in diabetic nephropathy. Life Sci 2019; 241:117109. [PMID: 31786195 DOI: 10.1016/j.lfs.2019.117109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/17/2019] [Accepted: 11/26/2019] [Indexed: 01/15/2023]
Abstract
AIMS This study aimed to identify interstitial molecules that were responsible for the deterioration of the esiantimated glomerular filtration rate (eGFR) in diabetic nephropathy (DN). MATERIALS AND METHODS Weighted gene co-expression network analysis (WGCNA) was used to link the tubulointerstitial gene expression profile of DN to eGFR values. The relationship of eGFR with each sub-domain regulator in the network was analyzed with the linear regression model. Gene sets enrichment analysis (GSEA) was applied to detect the molecular changes mostly relating to the essential regulators. KEY FINDINGS Four co-expression modules were found strongly correlating with eGFR values. Genes from these modules were over-represented in fibrosis-related biological processes (extracellular matrix (ECM) organization and cell adhesion) and pathways (integrin signaling and ECM-receptor interaction). Of sub-domains in the gene interaction network, the expression of hypoxia-inducible factor 1A (HIF1A) was most negatively correlated with eGFR (R2 = 0.417, P = 0.026). The positive correlations between HIF1A and its target genes were found, indicating an enhanced transcriptional activity of HIF1A. We also found that HIF1A positively correlated with CCAAT enhancer binding protein delta (CEBPD) (r = 0.731, P = 0.011), an activator of HIF1A transcription. Moreover, GSEA showed that samples with high HIF1A expression were enriched with fibrosis associated signaling, like ECM-receptor interaction and cell adhesion. Intriguingly, vascular epithelial growth factor A (VEGFA) expression decreased while HIF1A increased (R2 = 0.733, P = 0.001), suggesting VEGFA loss may exacerbate hypoxia and stimulate HIF1A induction. SIGNIFICANCE The present study suggested that interstitial HIF1A may be involved in renal interstitial fibrosis in DN.
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Affiliation(s)
- Xiyue Li
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Sisi Yang
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Minhua Yan
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Nan Guan
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Jing Li
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Qionghong Xie
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Chuanming Hao
- Department of Nephrology, Huashan Hospital, Fudan University, Shanghai 200040, China.
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Qiu Y, Huang X, He W. The regulatory role of HIF-1 in tubular epithelial cells in response to kidney injury. Histol Histopathol 2019; 35:321-330. [PMID: 31691948 DOI: 10.14670/hh-18-182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The high sensitivity to changes in oxygen tension makes kidney vulnerable to hypoxia. Both acute kidney injury and chronic kidney disease are almost always accompanied by hypoxia. Tubular epithelial cells (TECs), the dominant intrinsic cells in kidney tissue, are believed to be not only a victim in the pathological process of various kidney diseases, but also a major contributor to kidney damage. Hypoxia inducible factor-1 (HIF-1) is the main regulator of adaptive response of cells to hypoxia. Under various clinical and experimental kidney disease conditions, HIF-1 plays a pivotal role in modulating multiple cellular processes in TECs, including apoptosis, autophagy, inflammation, metabolic pattern alteration, and cell cycle arrest. A comprehensive understanding of the mechanisms by which HIF-1 regulates these cellular processes in TECs may help identify potential therapeutic targets to improve the outcome of acute kidney injury and delay the progression of chronic kidney disease.
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Affiliation(s)
- Yumei Qiu
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaowen Huang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Weichun He
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
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Mahmoud SY, Svensson F, Zoufir A, Módos D, Afzal AM, Bender A. Understanding Conditional Associations between ToxCast in Vitro Readouts and the Hepatotoxicity of Compounds Using Rule-Based Methods. Chem Res Toxicol 2019; 33:137-153. [DOI: 10.1021/acs.chemrestox.8b00382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Samar Y. Mahmoud
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Fredrik Svensson
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Azedine Zoufir
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Dezső Módos
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Avid M. Afzal
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Andreas Bender
- Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
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Encinas JFA, Foncesca CH, Perez MM, Simões DP, da Costa Aguiar Alves B, Bacci MR, Maifrino LBM, Fonseca FLA, da Veiga GL. Role of hypoxia-inducible factor 1α as a potential biomarker for renal diseases-A systematic review. Cell Biochem Funct 2019; 37:443-451. [PMID: 31317578 DOI: 10.1002/cbf.3425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 04/01/2019] [Accepted: 06/26/2019] [Indexed: 01/14/2023]
Abstract
Renal cells need oxygen for homeostasis; it is known for adjusting cellular functioning and the energy obtainment have a broad relationship with cellular respiration, through the O2 bioavailability. O2 homeostasis regulation in the kidney is mediated by hypoxia-inducible factors (HIFs). HIF is divided into three α isoforms, represented by HIF-1α, HIF-2α, and HIF-3α in addition to three paralogs of HIF-1β; these are involved in some metabolic processes, as well as in the pathogenesis of several diseases. Renal biopsy analyses of patients and experimental animal models aim to understand the relationship between HIF and protection against developing renal diseases or the induction of their onset, being thus this molecule can be considered a potential biomarker of renal disease. We carried out a systematic review to which we included studies on HIF-1α and renal disease in the last 5 years (2013-2018) in researches with humans and/or animal model through searches in three databases: LILACS, PubMed, and SciELO by two researchers. We obtained 22 articles that discussed the relationship with HIF as inductor or protector against renal disease and no relation between HIF and renal. We observed controversies remain regarding the relation between of HIF with renal diseases; this may be related to the different intracellular pathways mediated by HIF-1α, thereby determining differentiated cellular responses.
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Affiliation(s)
| | - Carlos Henrique Foncesca
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil
| | - Matheus Moreira Perez
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil
| | - Diogo Pimenta Simões
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil.,Universidade Municipal de São Caetano do Sul/USCS - São Caetano do Sul, Sao Caetano do Sul, Brazil
| | | | - Marcelo Rodrigues Bacci
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil
| | | | - Fernando Luiz Affonso Fonseca
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil.,Universidade Federal de São Paulo/UNIFESP - Diadema, São Paulo, Brazil
| | - Glaucia Luciano da Veiga
- Department of Clinical Analysis, Faculdade de Medicina do ABC/FMABC - Santo André, Santo André, Brazil
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Situmorang GR, Sheerin NS. Ischaemia reperfusion injury: mechanisms of progression to chronic graft dysfunction. Pediatr Nephrol 2019; 34:951-963. [PMID: 29603016 PMCID: PMC6477994 DOI: 10.1007/s00467-018-3940-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/18/2018] [Accepted: 03/02/2018] [Indexed: 12/18/2022]
Abstract
The increasing use of extended criteria organs to meet the demand for kidney transplantation raises an important question of how the severity of early ischaemic injury influences long-term outcomes. Significant acute ischaemic kidney injury is associated with delayed graft function, increased immune-associated events and, ultimately, earlier deterioration of graft function. A comprehensive understanding of immediate molecular events that ensue post-ischaemia and their potential long-term consequences are key to the discovery of novel therapeutic targets. Acute ischaemic injury primarily affects tubular structure and function. Depending on the severity and persistence of the insult, this may resolve completely, leading to restoration of normal function, or be sustained, resulting in persistent renal impairment and progressive functional loss. Long-term effects of acute renal ischaemia are mediated by several mechanisms including hypoxia, HIF-1 activation, endothelial dysfunction leading to vascular rarefaction, sustained pro-inflammatory stimuli involving innate and adaptive immune responses, failure of tubular cells to recover and epigenetic changes. This review describes the biological relevance and interaction of these mechanisms based on currently available evidence.
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Affiliation(s)
- Gerhard R Situmorang
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK
- Urology Department, Faculty of Medicine Universitas Indonesia - Cipto Mangunkusumo Hospital, Jakarta, 10430, Indonesia
| | - Neil S Sheerin
- Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, NE2 4HH, UK.
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J B, Das A. An edible fungi Pleurotus ostreatus inhibits adipogenesis via suppressing expression of PPAR γ and C/EBP α in 3T3-L1 cells: In vitro validation of gene knock out of RNAs in PPAR γ using CRISPR spcas9. Biomed Pharmacother 2019; 116:109030. [PMID: 31152927 DOI: 10.1016/j.biopha.2019.109030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE Obesity is now well recognized as a disorder, one that is essentially preventable through changes in lifestyle. Obesity is also a main concern associated with expanded morbidity and mortality from many noncommunicable illnesses (NCDs). The study aimed to determine the antiobesity effect of Pleurotus ostreatus (PO) and its bioactive anthraquinone (AQ). The overall promoter genes CEBPα (CCAAT enhancer binding protein α) and PPARγ (Peroxisome proliferator activated receptor γ) in controlling the homeostasis of glucose was analysed using 3T3-L1 cell line. Finally, an insilico study was carried out using CRISPR software to identify the RNA's involved in adipogenesis especially of the control gene PPARγ. MATERIALS AND METHODS Preliminary screening of the edible fungi and their bio actives led to the marvellous discovery of side effect free agonists for treating obesity (adipogenesis). An edible fungi Pleurotus ostreatus (PO) were analysed in a screening platform with different series of tests for adipocyte differentiation, triglyceride analysis, lipolysis determination, glucose uptake assay, cytotoxicity assay and lipase activity followed by specific gene expression analysis. The gene knockout mechanism was also elucidated by CRISPR spcas 9 tool. RESULTS The antiadipogenic (antiobesity) activity of DMSO extract of PO were found to stimulate the insulin dependent uptake of glucose. The extract also decreased the levels of triglycerides and glycerol accumulation in differentiated adipocyte cells. The binding FABP4 (Fatty acid binding protein) and transport protein FATP1 (Fatty acid transport protein) along with the fat breaking LPL (lipoprotein lipase) was found to be inhibited after the PO treatment at varying concentration (0-300 μg/ml). CRISPR spcas9 genome editing software was used as an insilico approach in validating the efficiency of mouse embryonic and human adipogenic cell line (3T3-L1). These tool analysed and found 4 RNAs gene knock out possibilities in PPARγ and their efficiency for further treating obesity. CONCLUSION These novel finding contribute to the confirmation that edible fungi PO and it's bioactive AQ is an adequate supplement for constraining the lipid and triglycerides in differentiated mature adipocytes by reversing the fat deposition. Thereby, forbidding the enzymes linked with fat absorption. Besides, the CRISPR tool identified gene knock out possibilities of control gene PPARγ, will pave a way in further research for treating obesity.
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Affiliation(s)
- Bindhu J
- Molecular Diagnostics and Bacterial Pathogenomics Research Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, 638401, India
| | - Arunava Das
- Molecular Diagnostics and Bacterial Pathogenomics Research Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, 638401, India.
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Sowamber R, Chehade R, Bitar M, Dodds LV, Milea A, Slomovitz B, Shaw PA, George SHL. CCAAT/enhancer binding protein delta (C/EBPδ) demonstrates a dichotomous role in tumour initiation and promotion of epithelial carcinoma. EBioMedicine 2019; 44:261-274. [PMID: 31078521 PMCID: PMC6603855 DOI: 10.1016/j.ebiom.2019.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/01/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022] Open
Abstract
Background CCAAT/enhancer binding protein delta (C/EBPδ,CEBPD), a gene part of the highly conserved basic-leucine zipper (b-ZIP) domain of transcriptional factors, is downregulated in 65% of high grade serous carcinomas of the ovary (HGSC). Overexpression of C/EBPδ in different tumours, such as glioblastoma and breast cancer either promotes tumour progression or inhibits growth and has low expression in normal tissue until activated by cytotoxic stressors. Methods Higher overall expression of C/EBPδ in the luteal phase of the menstrual cycle prompted us to investigate the role of C/EBPδ in carcinogenesis. In vitro experiments were conducted in fallopian tube cell samples and cancer cell lines to investigate the role of C/EBPδ in proliferation, migration, and the epithelial to mesenchymal transition. Findings Expression of C/EBPδ induced premature cellular arrest and decreased soft agar colony formation. Loss of C/EBPδ in epithelial cancer cell lines did not have significant effects on proliferation, yet overexpression demonstrated downregulation of growth, similar to normal fallopian tube cells. C/EBPδ promoted a partial mesenchymal to epithelial (MET) phenotype by upregulating E-cadherin and downregulating Vimentin and N-cadherin in FTE cells and increased migratory activity, which suggests a regulatory role in the epithelial-mesenchymal plasticity of these cells. Interpretation Our findings suggest that C/EBPδ regulates the phenotype of normal fallopian tube cells by acting on downstream regulatory factors that are implicated in the development of ovarian serous carcinogenesis. Fund This study was funded by the CDMRP Ovarian Cancer program (W81WH-0701-0371, W81XWH-18-1-0072), the Princess Margaret Cancer Centre Foundation, Foundation for Women's Cancer – The Belinda-Sue/Mary-Jane Walker Fund, Colleen's Dream Foundation and Sylvester Comprehensive Cancer Center.
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Affiliation(s)
- Ramlogan Sowamber
- Campbell Family Institute for Breast Cancer Research, Toronto, Ontario, Canada; Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Rania Chehade
- Campbell Family Institute for Breast Cancer Research, Toronto, Ontario, Canada; Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Mahmoud Bitar
- Campbell Family Institute for Breast Cancer Research, Toronto, Ontario, Canada; Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Leah V Dodds
- Sylvester Comprehensive Cancer Center, Miami, Florida, United States; University of Miami, Leonard Miller School of Medicine, Miami, Florida, United States
| | - Anca Milea
- Campbell Family Institute for Breast Cancer Research, Toronto, Ontario, Canada; Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Brian Slomovitz
- Sylvester Comprehensive Cancer Center, Miami, Florida, United States; Department of Obstetrics and Gynecology and Reproductive Sciences, Division of Gynecology Oncology, Miami, Florida, United States; University of Miami, Leonard Miller School of Medicine, Miami, Florida, United States
| | - Patricia A Shaw
- Campbell Family Institute for Breast Cancer Research, Toronto, Ontario, Canada; Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, Toronto, Ontario, Canada; University of Toronto, Toronto, Ontario, Canada
| | - Sophia H L George
- Sylvester Comprehensive Cancer Center, Miami, Florida, United States; Department of Obstetrics and Gynecology and Reproductive Sciences, Division of Gynecology Oncology, Miami, Florida, United States; University of Miami, Leonard Miller School of Medicine, Miami, Florida, United States.
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Chen YT, Chen FW, Chang TH, Wang TW, Hsu TP, Chi JY, Hsiao YW, Li CF, Wang JM. Hepatoma-derived growth factor supports the antiapoptosis and profibrosis of pancreatic stellate cells. Cancer Lett 2019; 457:180-190. [PMID: 31078734 DOI: 10.1016/j.canlet.2019.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/30/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022]
Abstract
Pancreatic cancer is refractory and is characterized by extensively surrounding and intratumor fibrotic reactions that are contributed by activated pancreatic stellate cells (PSCs). Herein, we show that CCAAT/enhancer-binding protein δ (CEBPD) responds to transforming growth factor-β1 (TGF-β1) through reciprocal loop regulation and that activated hypoxia inducible factor-1α (HIF-1α) further contributes to the upregulation of the hepatoma-derived growth factor (HDGF) gene. Secreted HDGF contributes to the antiapoptosis of PSCs and consequently leads to the synthesis and deposition of extracellular matrix proteins for stabilizing PSC/pancreatic cancer cell (PCC) tumor foci. This result agrees with the observation that severe stromal growth positively correlated with stromal HDGF and CEBPD expression in pancreatic cancer specimens. Collectively, the identification of the TGF-β1-activated CEBPD/HIF-1α/HDGF axis provides new insights into novel discoveries of HDGF in the antiapoptosis and profibrosis of PSCs and the outgrowth of PCCs.
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Affiliation(s)
- Yi-Ting Chen
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan; Medical Research Department, Chi Mei Medical Center, Tainan, Taiwan
| | - Feng-Wei Chen
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsung-Hao Chang
- Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tso-Wen Wang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Teng-Po Hsu
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Jhih-Ying Chi
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Wei Hsiao
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Chien-Feng Li
- Medical Research Department, Chi Mei Medical Center, Tainan, Taiwan; Department of Pathology, Chi Mei Medical Center, Tainan, Taiwan.
| | - Ju-Ming Wang
- Department of Biotechnology and Bioindustry Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan; International Research Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan; Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Balamurugan K, Mendoza-Villanueva D, Sharan S, Summers GH, Dobrolecki LE, Lewis MT, Sterneck E. C/EBPδ links IL-6 and HIF-1 signaling to promote breast cancer stem cell-associated phenotypes. Oncogene 2019; 38:3765-3780. [PMID: 30262865 PMCID: PMC6437025 DOI: 10.1038/s41388-018-0516-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/31/2018] [Accepted: 09/02/2018] [Indexed: 12/22/2022]
Abstract
To improve cancer patient outcome significantly, we must understand the mechanisms regulating stem-like cancer cells, which have been implicated as a cause of metastasis and treatment resistance. The transcription factor C/EBPδ can exhibit pro- and anti-tumorigenic activities, but the mechanisms underlying the complexity of its functions are poorly understood. Here we identify a role for breast cancer cell intrinsic C/EBPδ in promoting phenotypes that have been associated with cancer stem cells (CSCs). While C/EBPδ expression is not abundant in most metastatic breast cancers, our data support a pro-tumorigenic role of C/EBPδ when expressed in subsets of tumor cells and/or through transient activation by the tumor microenvironment or loss of substrate adhesion. Using genetic mouse models and human breast cancer cell lines, we show that deletion or depletion of C/EBPδ reduced expression of stem cell factors and stemnness markers, sphere formation and self-renewal, along with growth of tumors and established experimental metastases in vivo. C/EBPδ is also known as a mediator of the innate immune response, which is enhanced by hypoxia and interleukin-6 (IL-6) signaling, two conditions that also play important roles in cancer progression. Our mechanistic data reveal C/EBPδ as a link that engages two positive feedback loops, in part by directly targeting the IL-6 receptor (IL6RA) gene, and, thus, amplifying IL-6 and HIF-1 signaling. This study provides a molecular mechanism for the synergism of tumor microenvironmental conditions in cancer progression with potential implications for the targeting of CSCs.
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Affiliation(s)
- Kuppusamy Balamurugan
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
| | - Daniel Mendoza-Villanueva
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
- Mission Bio, South San Francisco, CA, 94080, USA
| | - Shikha Sharan
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Glenn H Summers
- Laboratory Animal Sciences Program, Leidos Biomedical Research Inc., Frederick, MD, 21702, USA
| | - Lacey E Dobrolecki
- Departments of Molecular and Cellular Biology and Radiology, Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Michael T Lewis
- Departments of Molecular and Cellular Biology and Radiology, Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Esta Sterneck
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
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Reactive oxygen species and cancer: A complex interaction. Cancer Lett 2019; 452:132-143. [PMID: 30905813 DOI: 10.1016/j.canlet.2019.03.020] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/21/2019] [Accepted: 03/01/2019] [Indexed: 12/11/2022]
Abstract
Elevated levels of Reactive Oxygen Species (ROS), increased antioxidant ability and the maintenance of redox homeostasis can cumulatively contribute to tumor progression and metastasis. The sources and the role of ROS in a heterogeneous tumor microenvironment can vary at different stages of tumor: initiation, development, and progression, thus making it a complex subject. In this review, we have summarized the sources of ROS generation in cancer cells, its role in the tumor microenvironment, the possible functions of ROS and its important scavenger systems in tumor progression with special emphasis on solid tumors.
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Hypoxia and Hypoxia-Inducible Factors in Kidney Injury and Repair. Cells 2019; 8:cells8030207. [PMID: 30823476 PMCID: PMC6468851 DOI: 10.3390/cells8030207] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 02/07/2023] Open
Abstract
Acute kidney injury (AKI) is a major kidney disease characterized by an abrupt loss of renal function. Accumulating evidence indicates that incomplete or maladaptive repair after AKI can result in kidney fibrosis and the development and progression of chronic kidney disease (CKD). Hypoxia, a condition of insufficient supply of oxygen to cells and tissues, occurs in both acute and chronic kidney diseases under a variety of clinical and experimental conditions. Hypoxia-inducible factors (HIFs) are the "master" transcription factors responsible for gene expression in hypoxia. Recent researches demonstrate that HIFs play an important role in kidney injury and repair by regulating HIF target genes, including microRNAs. However, there are controversies regarding the pathological roles of HIFs in kidney injury and repair. In this review, we describe the regulation, expression, and functions of HIFs, and their target genes and related functions. We also discuss the involvement of HIFs in AKI and kidney repair, presenting HIFs as effective therapeutic targets.
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HIF-1α inducing exosomal microRNA-23a expression mediates the cross-talk between tubular epithelial cells and macrophages in tubulointerstitial inflammation. Kidney Int 2019; 95:388-404. [DOI: 10.1016/j.kint.2018.09.013] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 08/24/2018] [Accepted: 09/06/2018] [Indexed: 02/04/2023]
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Abstract
Cardiovascular disease is a common and serious complication in patients with chronic kidney disease (CKD). One of the fundamental functions of the cardiovascular system is oxygen delivery, therefore cardiovascular disease inherently is linked to insufficient tissue oxygenation. Advances in our knowledge of cellular oxygen sensing by a family of prolyl hydroxylases (PHDs) and their role in regulating hypoxia-inducible factors (HIFs) have led to the discovery of PHD inhibitors as HIF stabilizers. Several small-molecule PHD inhibitors are currently in clinical trials for the treatment of anemia in CKD. An additional advantage of PHD inhibition may be found in the potential impact on cardiovascular consequences associated with CKD. Several preclinical studies have suggested a potential benefit of HIF activation in myocardial infarction, cardiac remodeling, atherosclerosis, and peripheral artery disease. Ameliorating glucose and lipid metabolism and lowering blood pressure may also contribute to cardiovascular protection. On the other hand, the broad spectrum of HIF-dependent functions also may include unwanted side effects. Clinical application of PHD inhibitors therefore necessitates careful evaluation of the net systemic effect of HIF activation.
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Qiu S, Chen X, Pang Y, Zhang Z. Lipocalin-2 protects against renal ischemia/reperfusion injury in mice through autophagy activation mediated by HIF1α and NF-κb crosstalk. Biomed Pharmacother 2018; 108:244-253. [DOI: 10.1016/j.biopha.2018.09.023] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/31/2018] [Accepted: 09/04/2018] [Indexed: 12/22/2022] Open
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Hypoxia-inducible factor stabilizers for treating anemia of chronic kidney disease. Curr Opin Nephrol Hypertens 2018; 27:331-338. [DOI: 10.1097/mnh.0000000000000431] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Luo F, Shi J, Shi Q, He X, Xia Y. ERK and p38 Upregulation versus Bcl-6 Downregulation in Rat Kidney Epithelial Cells Exposed to Prolonged Hypoxia. Cell Transplant 2018; 26:1441-1451. [PMID: 28901193 PMCID: PMC5680977 DOI: 10.1177/0963689717720296] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Hypoxia is a common cause of kidney injury and a major issue in kidney transplantation. Mitogen-activated protein kinases (MAPKs) are involved in the cellular response to hypoxia, but the precise roles of MAPKs in renal cell reactions to hypoxic stress are not well known yet. This work was conducted to investigate the regulation of extracellular signal-regulated kinase-1 and -2 (ERK1/2) and p38 and their signaling-relevant molecules in kidney epithelial cells exposed to prolonged hypoxia. Rat kidney epithelial cells Normal Rat Kidney (NRK)-52E were exposed to hypoxic conditions (1% O2) for 24 to 72 h. Cell morphology was examined by light microscopy, and cell viability was checked by 3-[4,5-dimethylthiazol-2-yl]-5-[3-carboxymethoxypheny]-2-[4-sulfophenyl]-2H-tetrazolium (MTS). The expression of ERK1/2 and p38 MAPK, as well as their signaling-related molecules, was measured by Western blot and real-time polymerase chain (RT-PCR) reaction. At the 1% oxygen level, cell morphology had no appreciable changes compared to the control up to 72 h of exposure under light microscopy, whereas the results of MTS showed a slight but significant reduction in cell viability after 72 h of hypoxia. On the other hand, ERK1/2 and p38 phosphorylation remarkably increased in these cells after 24 to 72 h of hypoxia. In sharp contrast, the expression of transcription factor B-cell lymphoma 6 (Bcl-6) was significantly downregulated in response to hypoxic stress. Other intracellular molecules relevant to the ERK1/2 and p38 signaling pathway, such as protein kinase A, protein kinase C, Bcl-2, nuclear factor erythroid 2-related factor 2, tristetraprolin, and interleukin-10(IL-10), had no significant alterations after 24 to 72 h of hypoxic exposure. We conclude that hypoxic stress increases the phosphorylation of both ERK1/2 and p38 but decreases the level of Bcl-6 in rat kidney epithelial cells.
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Affiliation(s)
- Fengbao Luo
- 1 Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Jian Shi
- 1 Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Qianqian Shi
- 1 Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Xiaozhou He
- 1 Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Ying Xia
- 2 Shanghai Key Laboratory of Acupuncture Mechanism and Acupoint Function, Fudan University, Shanghai, China
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Li W, Zhao Y, Fu P. Hypoxia Induced Factor in Chronic Kidney Disease: Friend or Foe? Front Med (Lausanne) 2018; 4:259. [PMID: 29404328 PMCID: PMC5786558 DOI: 10.3389/fmed.2017.00259] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 12/26/2017] [Indexed: 02/05/2023] Open
Abstract
Many studies have shown evidence that erythropoiesis-stimulating agents (ESAs), as a classic treatment for chronic kidney disease (CKD)-related anemia, have several disadvantages and may trigger various adverse events with long-term use. The hypoxia-induced factor (HIF) pathway has been intensively investigated in kidney disease, especially in CKD, as research has shown that HIF-mediated erythropoiesis might work as a potential therapeutic strategy for managing CKD-related anemia. Development of prolyl hydroxylase domain inhibitors (PHIs), as an effective HIF activator, is a valuable step toward finding a replacement for ESAs, which showed an effective erythropoiesis through a comprehensive and physiological approach by promoting erythropoietin production, increasing iron bioavailability and improving chronic inflammatory status. Heretofore no adverse events or obvious off-target effects have been reported in clinical trials of PHIs. Nevertheless, a cautious inspection with extended follow-up period is warranted to validate the safety of prolonged HIF elevation, especially considering its ambiguous role in fibrogenesis and inflammation responses and possible risks in accelerating vascular calcification and tumorigenesis. A weighed dosing strategy might be the key to circumvent the unexpected side-effect brought by pleotropic effects of HIF elevation and achieve a selective augmentation of HIF-mediated signaling pathway. New studies with longer follow-up period and adequate analysis about the risks for proinflammation, vascular calcification and tumorigenesis are needed to ensure the drugs are safe for long-term use before being widely accepted in daily clinical practice.
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Affiliation(s)
- Weiying Li
- Division of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuliang Zhao
- Division of Nephrology, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Fu
- Division of Nephrology, West China Hospital, Sichuan University, Chengdu, China
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Mimura I, Tanaka T, Nangaku M. New insights into molecular mechanisms of epigenetic regulation in kidney disease. Clin Exp Pharmacol Physiol 2017; 43:1159-1167. [PMID: 27560313 DOI: 10.1111/1440-1681.12663] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 08/12/2016] [Accepted: 08/21/2016] [Indexed: 12/11/2022]
Abstract
The number of patients with kidney failure has increased in recent years. Different factors contribute to the progression of chronic kidney disease, including glomerular sclerosis, atherosclerosis of the renal arteries and tubulointerstitial fibrosis. Tubulointerstitial injury is induced by hypoxia and other inflammatory signals, leading to fibroblast activation. Technological advances using high-throughput sequencing has enabled the determination of the expression profile of almost all genes, revealing that gene expression is intricately regulated by DNA methylation, histone modification, changes in chromosome conformation, long non-coding RNAs and microRNAs. These epigenetic modifications are stored as cellular epigenetic memory. Epigenetic memory leads to adult-onset disease or ageing in the long term and may possibly play an important role in the kidney disease process. Herein we emphasize the importance of clarifying the molecular mechanisms underlying epigenetic modifications because this may lead to the development of new therapeutic targets in kidney disease.
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Affiliation(s)
- Imari Mimura
- Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Tetsuhiro Tanaka
- Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
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Echinomycin inhibits adipogenesis in 3T3-L1 cells in a HIF-independent manner. Sci Rep 2017; 7:6516. [PMID: 28747725 PMCID: PMC5529514 DOI: 10.1038/s41598-017-06761-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 06/19/2017] [Indexed: 01/08/2023] Open
Abstract
Obesity is a risk factor for many diseases including diabetes, cancer, cardiovascular disease, and chronic kidney disease. Obesity is characterized by the expansion of white adipose tissue (WAT). Hypertrophy and hyperplasia of adipocytes cause tissue hypoxia followed by inflammation and fibrosis. Its trigger, preadipocyte differentiation into mature adipocytes, is finely regulated by transcription factors, signal molecules, and cofactors. We found that echinomycin, a potent HIF-1 inhibitor, completely inhibited adipogenesis in 3T3-L1 WAT preadipocytes by affecting the early phase of mitotic clonal expansion. The dose required to exert the effect was surprisingly low and the time was short. Interestingly, its inhibitory effect was independent of HIF-1 pathways. Time-course DNA microarray analysis of drug-treated and untreated preadipocytes extracted a major transcription factor, CCAAT/enhancer-protein β, as a key target of echinomycin. Echinomycin also inhibited adipogenesis and body weight gain in high fat diet mice. These findings highlight a novel role of echinomycin in suppressing adipocyte differentiation and offer a new therapeutic strategy against obesity and diabetes.
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Hypoxia, HIF, and Associated Signaling Networks in Chronic Kidney Disease. Int J Mol Sci 2017; 18:ijms18050950. [PMID: 28468297 PMCID: PMC5454863 DOI: 10.3390/ijms18050950] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 12/30/2022] Open
Abstract
The pathogenesis of chronic kidney disease (CKD) is complex and apparently multifactorial. Hypoxia or decrease in oxygen supply in kidney tissues has been implicated in CKD. Hypoxia inducible factors (HIF) are a small family of transcription factors that are mainly responsive to hypoxia and mediate hypoxic response. HIF plays a critical role in renal fibrosis during CKD through the modulation of gene transcription, crosstalk with multiple signaling pathways, epithelial-mesenchymal transition, and epigenetic regulation. Moreover, HIF also contributes to the development of various pathological conditions associated with CKD, such as anemia, inflammation, aberrant angiogenesis, and vascular calcification. Treatments targeting HIF and related signaling pathways for CKD therapy are being developed with promising clinical benefits, especially for anemia. This review presents an updated analysis of hypoxia response, HIF, and their associated signaling network involved in the pathogenesis of CKD.
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Feldhoff LM, Rueda CM, Moreno-Fernandez ME, Sauer J, Jackson CM, Chougnet CA, Rupp J. IL-1β induced HIF-1α inhibits the differentiation of human FOXP3 + T cells. Sci Rep 2017; 7:465. [PMID: 28352109 PMCID: PMC5428734 DOI: 10.1038/s41598-017-00508-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 03/02/2017] [Indexed: 12/17/2022] Open
Abstract
Differentiation of regulatory Treg (Treg) in the periphery is critical to control inflammatory processes. Although polarization of inducible Treg (iTreg) often occurs in an inflammatory environment, the effects exerted by inflammation on human iTreg differentiation have not been extensively studied. We observed that IL-1β significantly reduced the frequency of FOXP3+ T cells under iTreg-polarizing conditions. Mechanistically, we show that IL-1β activated mTORC1 and downstream upregulated hypoxia inducible factor-1 (HIF-1α) expression. Using specific inhibitors, we demonstrated that both steps were critical in the deleterious effect of IL-1β on Treg differentiation. Chemical stabilization of HIF-1α by Dimethyloxalylglycine (DMOG) also significantly impaired iTreg differentiation. Interestingly, while IL-1β-treated cells exhibited only minor changes in metabolism, DMOG treatment decreased iTreg mitochondrial respiration and increased their glycolytic capacity. In conclusion, exposure to inflammatory stimuli profoundly inhibits human Treg differentiation HIF-1α dependent, suggesting that targeting HIF-1α could be a strategy to foster iTreg differentiation in an inflammatory milieu. However, IL-1β deleterious effect does not appear to be completely driven by metabolic changes. These data thus suggest that several mechanisms contribute to the regulation of iTreg differentiation, but the timing and respective requirement for each pathway vary depending on the milieu in which iTreg differentiate.
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Affiliation(s)
- Lea M Feldhoff
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Cesar M Rueda
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Maria E Moreno-Fernandez
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Johanna Sauer
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany
| | - Courtney M Jackson
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Research Foundation, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Jan Rupp
- Department of Infectious Diseases and Microbiology, University of Lübeck, Lübeck, Germany.
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Oxygen imaging of living cells and tissues using luminescent molecular probes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2017. [DOI: 10.1016/j.jphotochemrev.2017.01.001] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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