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Chugh SS, Clement LC. "Idiopathic" minimal change nephrotic syndrome: a podocyte mystery nears the end. Am J Physiol Renal Physiol 2023; 325:F685-F694. [PMID: 37795536 PMCID: PMC10878723 DOI: 10.1152/ajprenal.00219.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/11/2023] [Accepted: 10/02/2023] [Indexed: 10/06/2023] Open
Abstract
The discovery of zinc fingers and homeoboxes (ZHX) transcriptional factors and the upregulation of hyposialylated angiopoietin-like 4 (ANGPTL4) in podocytes have been crucial in explaining the cardinal manifestations of human minimal change nephrotic syndrome (MCNS). Recently, uncovered genomic defects upstream of ZHX2 induce a ZHX2 hypomorph state that makes podocytes inherently susceptible to mild cytokine storms resulting from a common cold. In ZHX2 hypomorph podocytes, ZHX proteins are redistributed away from normal transmembrane partners like aminopeptidase A (APA) toward alternative binding partners like IL-4Rα. During disease relapse, high plasma soluble IL-4Rα (sIL-4Rα) associated with chronic atopy complements the cytokine milieu of a common cold to displace ZHX1 from podocyte transmembrane IL-4Rα toward the podocyte nucleus. Nuclear ZHX1 induces severe upregulation of ANGPTL4, resulting in incomplete sialylation of part of the ANGPTL4 protein, secretion of hyposialylated ANGPTL4, and hyposialylation-related injury in the glomerulus. This pattern of injury induces many of the classic manifestations of human minimal change disease (MCD), including massive and selective proteinuria, podocyte foot process effacement, and loss of glomerular basement membrane charge. Administration of glucocorticoids reduces ANGPTL4 upregulation, which reduces hyposialylation injury to improve the clinical phenotype. Improving sialylation of podocyte-secreted ANGPTL4 also reduces proteinuria and improves experimental MCD. Neutralizing circulating TNF-α, IL-6, or sIL-4Rα after the induction of the cytokine storm in Zhx2 hypomorph mice reduces albuminuria, suggesting potential new therapeutic targets for clinical trials to prevent MCD relapse. These studies collectively lay to rest prior suggestions of a role of single cytokines or soluble proteins in triggering MCD relapse.
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Affiliation(s)
- Sumant S Chugh
- Glomerular Disease Therapeutics Laboratory, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, United States
| | - Lionel C Clement
- Glomerular Disease Therapeutics Laboratory, Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois, United States
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2
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Zhang S, Fan Q, Moktefi A, Ory V, Audard V, Pawlak A, Ollero M, Sahali D, Henique C. CMIP interacts with WT1 and targets it on the proteasome degradation pathway. Clin Transl Med 2021; 11:e460. [PMID: 34323419 PMCID: PMC8299046 DOI: 10.1002/ctm2.460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 04/29/2021] [Accepted: 05/25/2021] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND The Wilms tumor 1 suppressor gene, WT1, is expressed throughout life in podocytes and is essential for their function. Downregulation of WT1 has been reported in podocyte diseases but the underlying mechanisms remain unclear. Podocyte injury is the hallmark of idiopathic nephrotic syndrome (INS), the most frequent glomerular disease in children and young adults. An increase in the abundance of Cmaf-inducing protein (CMIP) has been found to alter podocyte function, but it is not known whether CMIP affects WT1 expression. METHODS Transcriptional and post-transcriptional regulation of WT1in the presence of CMIP was studied using transient transfection, mouse models, and siRNA handling. RESULTS We showed that overproduction of CMIP in the podocyte was consistently associated with a downregulation of WT1 according to two mechanisms. We found that CMIP prevented the NF-kB-mediated transcriptional activation of WT1. We demonstrated that CMIP interacts directly with WT1 through its leucine-rich repeat domain. Overexpression of CMIP in the M15 cell line induced a downregulation of WT1, which was prevented by lactacystin, a potent proteasome inhibitor. We showed that CMIP exhibits an E3 ligase activity and targets WT1 to proteasome degradation. Intravenous injection of Cmip-siRNA specifically prevented the repression of Wt1 in lipopolysaccharides-induced proteinuria in mice. CONCLUSIONS These data suggest that CMIP is a repressor of WT1 and might be a critical player in the pathophysiology of some podocyte diseases. Because WT1 is required for podocyte integrity, CMIP could be considered a therapeutic target in podocyte diseases.
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Affiliation(s)
- Shao‐Yu Zhang
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
| | - Qingfeng Fan
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
| | - Anissa Moktefi
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
- AP‐HPGroupe hospitalier Henri Mondor‐Albert ChenevierDépartement de pathologieCreteilFrance
| | - Virginie Ory
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
| | - Vincent Audard
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
- AP‐HPGroupe Henri‐Mondor Albert‐ChenevierService de NéphrologieCreteilFrance
| | - Andre Pawlak
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
| | - Mario Ollero
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
| | - Dil Sahali
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
- AP‐HPGroupe Henri‐Mondor Albert‐ChenevierService de NéphrologieCreteilFrance
| | - Carole Henique
- INSERMCreteilFrance
- Faculté de santéUniversité Paris Est CreteilCreteilFrance
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3
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CMIP SNPs and their haplotypes are associated with dyslipidaemia and clinicopathologic features of IgA nephropathy. Biosci Rep 2021; 40:226655. [PMID: 33112407 PMCID: PMC7593538 DOI: 10.1042/bsr20202628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/16/2020] [Accepted: 10/09/2020] [Indexed: 12/14/2022] Open
Abstract
The relationship between serum lipid profiles and related clinicopathologic features of IgA nephropathy (IgAN) and c-Maf-inducing protein (CMIP) gene polymorphisms is unclear. The present study was designed to examine the effect of CMIP single-nucleotide polymorphisms (SNPs) on dyslipidaemia and clinicopathologic features of IgAN. Clinical and pathological data from patients with IgAN diagnosed at the First Affiliated Hospital of Guangxi Medical University were collected. DNA was extracted from blood samples. CMIP rs2925979 and CMIP rs16955379 genotypes were determined by PCR and direct sequencing. Among 543 patients, 281 had dyslipidaemia (51.7%). Compared with the non-dyslipidaemia group, the dyslipidaemia group exhibited higher blood pressure, blood urea nitrogen, uric acid, and body mass index; higher prevalence of oedema, haematuria, tubular atrophy, and interstitial fibrosis; and lower albumin and estimated glomerular filtration rate. In the dyslipidaemia group, the frequency of C allele carriers was higher than that of non-C allele carriers for rs16955379. Multivariate linear regression analysis showed that total cholesterol, low-density lipoprotein and high-density lipoprotein were associated with rs16955379C allele carriers. Apolipoprotein B was associated with A allele carriers of rs2925979. Linkage disequilibrium was observed between rs16955379 and rs2925979, and rs2925979G-rs16955379T was the most common haplotype. The frequencies of the four CMIP SNP haplotypes differed between dyslipidaemia and non-dyslipidaemia groups in IgAN (P<0.05, for all above). Dyslipidaemia is a common complication in IgAN patients, and those with dyslipidaemia present poor clinicopathologic features. CMIP SNPs and their haplotypes are closely correlated with the occurrence of dyslipidaemia and clinicopathologic damage in IgAN patients.
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4
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The Enigmatic Emerging Role of the C-Maf Inducing Protein in Cancer. Diagnostics (Basel) 2021; 11:diagnostics11040666. [PMID: 33917766 PMCID: PMC8068179 DOI: 10.3390/diagnostics11040666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/04/2021] [Accepted: 04/05/2021] [Indexed: 11/17/2022] Open
Abstract
The C-Maf-Inducing protein (CMIP) was first described as overexpressed in T cell subpopulations of idiopathic nephrotic syndrome (INS) patients. Later, it was found concomitantly upregulated in podocytes. CMIP expression has also been reported in several types of cancer, including blood malignancies and solid tumors, in many cases accompanied by nephrotic syndrome. In addition to these observations, the duality of CMIP overexpression in the kidney and INS lesions, has been extensively reported as one of the adverse effects of anticancer therapy based on anti-receptor tyrosine kinase drugs. As a consequence, a growing body of evidence points at CMIP as playing a role in cancer. This includes its reciprocal regulatory ties with NF-κB and WT1, and the more recent reports showing an involvement in regulatory circuits in cancer cells. The ensemble of the current information justifies to propose CMIP as an important piece of the puzzle of biological systems involved in cancer and other diseases and its potential as a target.
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Li Y, Cui S, Shi W, Yang B, Yuan Y, Yan S, Li Y, Xu Y, Zhang Z, Linlin Zhang. Differential placental methylation in preeclampsia, preterm and term pregnancies. Placenta 2020; 93:56-63. [PMID: 32250740 DOI: 10.1016/j.placenta.2020.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 02/06/2020] [Accepted: 02/10/2020] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Preeclampsia (PE) is one of the leading causes of maternal mortality and morbidity worldwide. Recently, the role of epigenetic modifications in preeclampsia has been a focus of research. This study was to identified genes or pathways that may be associated with PE, and discuss whether the changes in the methylation level of these genes is related to the pathogenesis of PE. METHODS The methylation levels of placental tissues between PE (n = 4), preterm birth (PB, n = 4) and term birth (TB, n = 4) were detected by Illumina Infinium HumanMethylation850 K BeadChip. Pyrosequencing and qRT-PCR were used to validated the methylation and expression levels of the genes with the most significant differences. RESULTS The global methylation levels of placenta tissues in PE and PB were both higher compared to TB. After eliminated the effect of gestational age, there were 808 gene probes differentially methylated in PE compared to PB. We found 137 genes with 130 genes hypermethylated and 7 genes hypomethylated. CMIP, BLCAP and MICA genes were with the most significant differential methylation. The expression level of CMIP and BLCAP were both negatively correlated to the methylation levels, while the expression level of MICA was not related to its methylation levels. CONCLUSION The methylation levels in placenta tissues were associated with gestational ages. We indicated the expression levels of the significantly methylated genes were negatively correlated with the methylation levels, further functional researches were still needed to find out whether they are associated with the onset of preeclampsia.
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Affiliation(s)
- Yingying Li
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Shihong Cui
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Wenli Shi
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Bo Yang
- Department of Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yangyang Yuan
- Department of Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Shujun Yan
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ying Li
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yajuan Xu
- Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhan Zhang
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Department of Obstetrics and Gynecology, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Linlin Zhang
- Department of Clinical Laboratory, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China; Department of Medical Research Center, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
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Wang J, Fu D, Senouthai S, You Y. Critical roles of PI3K/Akt/NF‑κB survival axis in angiotensin II‑induced podocyte injury. Mol Med Rep 2019; 20:5134-5144. [PMID: 31638199 PMCID: PMC6854545 DOI: 10.3892/mmr.2019.10733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/30/2019] [Indexed: 12/12/2022] Open
Abstract
Numerous studies have reported that angiotensin (Ang) II, nephrin, and podocin serve pivotal roles in podocyte injury, and thus can lead to the occurrence of proteinuria and the progression of kidney diseases. This study aimed to investigate the effects of Ang II on the production of nephrin and podocin, and their relationship with podocyte injury. We also aimed to determine whether nephrin, podocin and caspase-9 production depends on the PI3K/Akt/nuclear factor (NF)-κB signaling pathway in cultured mouse podocytes. We treated mouse podocytes with different doses of Ang II (10−9, 10−8, 10−7 and 10−6 mol/l) for 12, 24, and 48 h to analyse cell viability, and at 10−6 mol/l Ang II for 12, 24, and 48 h to evaluate cell apoptosis. Cells were treated with 10−6 mol/l of Ang II and/or LY294002 (inhibitor of Akt) or 740Y-P (activator of PI3K) for 48 h to detect Akt, phosphorylated (phospho)-Akt, p65 NF-κB, and phospho-p65 NF-κB, nephrin, podocin and caspase-9 expression, and podocyte apoptosis. Treatment with Ang II suppressed the viability and promoted the apoptosis of podocytes in a dose- and time-dependent manner. Ang II decreased phospho-Akt, phospho-p65 NF-κB, nephrin, and podocin and increased caspase-9 expression, while podocyte apoptosis was promoted. LY294002 further enhanced Ang II-induced downregulation of Akt and p65 NF-κB activation, as well as upregulation of caspase-9 mRNA and protein, and promoted the apoptosis of podocytes. Of note, 740Y-P restored Ang II-induced downregulation of Akt and p65 NF-κB activation, and upregulation of caspase-9, and decreased podocyte apoptosis. Interestingly, LY294002 and 740Y-P were determined to have no notable effects on the expression of nephrin and podocin. The data suggested that Ang II could regulate the expression of nephrin, podocin and caspase-9. Collectively, our findings suggested that the PI3K/Akt/NF-κB survival axis may serve a pivotal role in podocyte injury.
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Affiliation(s)
- Junjie Wang
- Department of Nephrology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Dongdong Fu
- Department of Nephrology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Soulixay Senouthai
- Department of Nephrology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
| | - Yanwu You
- Department of Nephrology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi Zhuang Autonomous Region 533000, P.R. China
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Oniszczuk J, Sendeyo K, Chhuon C, Savas B, Cogné E, Vachin P, Henique C, Guerrera IC, Astarita G, Frontera V, Pawlak A, Audard V, Sahali D, Ollero M. CMIP is a negative regulator of T cell signaling. Cell Mol Immunol 2019; 17:1026-1041. [PMID: 31395948 PMCID: PMC7609264 DOI: 10.1038/s41423-019-0266-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 07/10/2019] [Indexed: 11/24/2022] Open
Abstract
Upon their interaction with cognate antigen, T cells integrate different extracellular and intracellular signals involving basal and induced protein–protein interactions, as well as the binding of proteins to lipids, which can lead to either cell activation or inhibition. Here, we show that the selective T cell expression of CMIP, a new adapter protein, by targeted transgenesis drives T cells toward a naïve phenotype. We found that CMIP inhibits activation of the Src kinases Fyn and Lck after CD3/CD28 costimulation and the subsequent localization of Fyn and Lck to LRs. Video microscopy analysis showed that CMIP blocks the recruitment of LAT and the lipid raft marker cholera toxin B at the site of TCR engagement. Proteomic analysis identified several protein clusters differentially modulated by CMIP and, notably, Cofilin-1, which is inactivated in CMIP-expressing T cells. Moreover, transgenic T cells exhibited the downregulation of GM3 synthase, a key enzyme involved in the biosynthesis of gangliosides. These results suggest that CMIP negatively impacts proximal signaling and cytoskeletal rearrangement and defines a new mechanism for the negative regulation of T cells that could be a therapeutic target.
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Affiliation(s)
- Julie Oniszczuk
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Kelhia Sendeyo
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Cerina Chhuon
- Proteomic Platform Necker, PPN-3P5, Structure Fédérative de Recherche SFR Necker US24, 75015, Paris, France
| | - Berkan Savas
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Etienne Cogné
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Pauline Vachin
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Carole Henique
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Ida Chiara Guerrera
- Proteomic Platform Necker, PPN-3P5, Structure Fédérative de Recherche SFR Necker US24, 75015, Paris, France
| | - Giuseppe Astarita
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University, Washington, DC, USA
| | - Vincent Frontera
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Andre Pawlak
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
| | - Vincent Audard
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France.,AP-HP, Groupe Henri-Mondor Albert-Chenevier, Service de Néphrologie, F-94010, Créteil, France.,Institut Francilien De Recherche En Néphrologie Et Transplantation, F-94010, Créteil, France
| | - Dil Sahali
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France. .,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France. .,AP-HP, Groupe Henri-Mondor Albert-Chenevier, Service de Néphrologie, F-94010, Créteil, France. .,Institut Francilien De Recherche En Néphrologie Et Transplantation, F-94010, Créteil, France.
| | - Mario Ollero
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMRS 955, Equipe 21, F-94010, Créteil, France.,Faculté de Médecine, Université Paris Est, UMRS 955, Equipe 21, F-94010, Créteil, France
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8
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Li TS, Chen L, Wang SC, Yang YZ, Xu HJ, Gu HM, Zhao XJ, Dong P, Pan Y, Shang ZQ, Zhang XQ, Kong LD. Magnesium isoglycyrrhizinate ameliorates fructose-induced podocyte apoptosis through downregulation of miR-193a to increase WT1. Biochem Pharmacol 2019; 166:139-152. [DOI: 10.1016/j.bcp.2019.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/08/2019] [Indexed: 02/07/2023]
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9
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Arrestier R, Satie AP, Zhang SY, Plaisier E, Isnard-Bagnis C, Gatault P, Raimbourg Q, Buob D, Vocila F, Heng AE, Francois H, Moktefi A, Canaud G, Matignon M, Dejucq-Rainsford N, Brocheriou I, Sahali D, Audard V. Minimal change nephrotic syndrome in patients infected with human immunodeficiency virus: a retrospective study of 8 cases. BMC Nephrol 2018; 19:331. [PMID: 30458703 PMCID: PMC6247501 DOI: 10.1186/s12882-018-1132-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 11/05/2018] [Indexed: 12/01/2022] Open
Abstract
Background Human immunodeficiency virus (HIV) is associated with diverse glomerular diseases. Characteristics of minimal change nephrotic syndrome (MCNS) in this setting have been little studied, and the specific features of this uncommon association remain to be determined. Methods We conduct a retrospective study. Clinical, biological and pathological characteristics of patients with MCNS and HIV infection were assessed. We evaluated HIV infection by in situ hybridization and CMIP expression by immunochemistry on kidney biopsies and compared it to HIV-associated nephropathy (HIVAN) and idiopathic MCNS. Results Eight patients were identifies. In all but one of these cases, MCNS occurred after HIV diagnosis (mean of 9.5 years). Acute kidney injury was detected in three cases. Mean CD4+ lymphocyte count was 733/mm3 and three patients had a detectable HIV viral load. In situ hybridization for HIV-1 RNA detection yielded a positive signal in a few tubular cells in the renal parenchyma in two of four patients with HIV infection associated with MCNS. Podocytes of these patients presented strong positive immunostaining for CMIP (4/4). Three patients suffered steroid-dependent nephrotic syndrome, and another two patients had at least one relapse. Rituximab treatment was initiated in four cases. After a median follow-up of 20 months, all patients were in remission (complete in 5 cases). Conclusions In patients with MCNS occurring in a context of HIV infection, podocyte injury seems to be associated with CMIP induction rather than renal HIV infection but further studies are needed to determine the molecular link between these two conditions.
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Affiliation(s)
- Romain Arrestier
- AP-HP (Assistance Publique-Hôpitaux de Paris), Service de Néphrologie et de Transplantation, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Hôpital Henri-Mondor/Albert-Chenevier, F-94000, Créteil, France. .,Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France. .,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France.
| | - Anne-Pascale Satie
- Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Univ Rennes, Inserm, EHESP (Ecole des Hautes Etudes en Santé Publique), F-35000, Rennes, France
| | - Shao-Yu Zhang
- Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France.,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France
| | - Emmanuelle Plaisier
- Sorbonne Université, AP-HP, Service de Néphrologie, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Hôpital Tenon, F-75020, Paris, France
| | - Corinne Isnard-Bagnis
- AP-HP, Service de Néphrologie, Hôpital de La Pitié Salpêtrière, F-75013, Paris, France
| | - Philippe Gatault
- Service de Néphrologie et Transplantation, Hôpital Bretonneau, F-37000, Tours, France
| | - Quentin Raimbourg
- AP-HP, Service de Néphrologie, Hôpital Bichat, F-75018, Paris, France
| | - David Buob
- AP-HP, Service d'Anatomie Pathologique, Hôpital Tenon, F-75020, Paris, France
| | - Flavia Vocila
- Service de Néphrologie Centre Hospitalier de Cannes, F-06400, Cannes, France
| | - Anne-Elisabeth Heng
- Service de Néphrologie, Dialyse, Transplantation, CHU (Centre Hospitalier Universitaire) Clermont-Ferrand, UMR 1019, INRA (Institut National de la Recherche Agronomique), Université Clermont Auvergne, Clermont-Ferrand, France
| | - Helene Francois
- AP-HP, Service Médecine Interne et Immunologie clinique, Hôpital Bicêtre, F-94275, Le Kremlin-Bicêtre, France
| | - Anissa Moktefi
- Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France.,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France.,AP-HP, Service d'Anatomie Pathologique, Hôpital Henri-Mondor/Albert-Chenevier, F-94000, Créteil, France
| | - Guillaume Canaud
- INSERM U1151, Institut Necker Enfants Malades, Hôpital Necker-Enfants Malades, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Hôpital Necker-Enfants Malades, Paris, France.,AP-HP, Service de Néphrologie Transplantation Adultes, Hôpital Necker-Enfants Malades, Paris, France
| | - Marie Matignon
- AP-HP (Assistance Publique-Hôpitaux de Paris), Service de Néphrologie et de Transplantation, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Hôpital Henri-Mondor/Albert-Chenevier, F-94000, Créteil, France.,Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France.,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France
| | - Nathalie Dejucq-Rainsford
- Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, Univ Rennes, Inserm, EHESP (Ecole des Hautes Etudes en Santé Publique), F-35000, Rennes, France
| | - Isabelle Brocheriou
- AP-HP, Service d'Anatomie Pathologique, Hôpital de La Pitié Salpêtrière, F 75013, Paris, France
| | - Dil Sahali
- AP-HP (Assistance Publique-Hôpitaux de Paris), Service de Néphrologie et de Transplantation, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Hôpital Henri-Mondor/Albert-Chenevier, F-94000, Créteil, France.,Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France.,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France
| | - Vincent Audard
- AP-HP (Assistance Publique-Hôpitaux de Paris), Service de Néphrologie et de Transplantation, Centre de Référence Maladie Rare Syndrome Néphrotique Idiopathique, Hôpital Henri-Mondor/Albert-Chenevier, F-94000, Créteil, France.,Université Paris-Est Créteil (UPEC), UMR-S955, F-94000, Créteil, France.,Institut National de la Santé Et de la Recherche Médicale (INSERM), U955, équipe 21, F-94000, Créteil, France
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10
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Bouachi K, Moktefi A, Zhang SY, Oniszczuk J, Sendeyo K, Remy P, Audard V, Pawlak A, Ollero M, Sahali D. Expression of CMIP in podocytes is restricted to specific classes of lupus nephritis. PLoS One 2018; 13:e0207066. [PMID: 30439969 PMCID: PMC6237342 DOI: 10.1371/journal.pone.0207066] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/24/2018] [Indexed: 11/18/2022] Open
Abstract
Lupus glomerulopathies are classified into various histological patterns, which probably result from different pathophysiological origins. Podocyte injury can be demonstrated in lupus nephritis but its clinical relevance is far little appreciated and is often masked by proliferative lesions and inflammatory cell infiltrations. Two patterns of podocyte lesions may be considered, either occurring in the context of renal inflammation or reflecting podocyte dysfunction in non-proliferative and non-inflammatory glomerulopathies. This distinction remains elusive since no reliable biomarker discriminates between both entities. CMIP was recently found induced in some glomerular disease but its expression in different lupus nephritis classes has not been investigated. Twenty-four adult patients with lupus nephritis, including non-proliferative (n = 11) and proliferative (n = 13) glomerulopathies were analyzed. Clinical, biological and immunological data were compared with immunomorphological findings. We analyzed by quantitative and qualitative methods the expression of CMIP in different histological classes. We found CMIP abundance selectively increased in podocytes in class II and class V glomerulopathies, while in proliferative forms (class III and class IV), CMIP was rarely detected. CMIP was not expressed in cellular crescents, endothelial cells or mesangial cells. CMIP colocalized with some subsets of B and T cells within glomerular or interstitial mononuclear cell infiltrates but never with macrophages. Hematuria is rarely present in lupus glomerulopathies expressing CMIP. There was no correlation between classical immunological markers and CMIP expression. Thus, CMIP induction in lupus nephritis seems restricted to non-proliferative glomerulopathies and may define a specific pattern of podocyte injury.
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Affiliation(s)
- Khedidja Bouachi
- AP-HP (Assistance Publique des Hôpitaux de Paris), Groupe Hospitalier Henri-Mondor, Department of Nephrology and Renal Transplantation, Créteil, France
| | - Anissa Moktefi
- AP-HP (Assistance Publique des Hôpitaux de Paris), Groupe Hospitalier Henri-Mondor, Department of Pathology, Créteil, France
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Shao-yu Zhang
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Julie Oniszczuk
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Kelhia Sendeyo
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Philippe Remy
- AP-HP (Assistance Publique des Hôpitaux de Paris), Groupe Hospitalier Henri-Mondor, Department of Nephrology and Renal Transplantation, Créteil, France
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Vincent Audard
- AP-HP (Assistance Publique des Hôpitaux de Paris), Groupe Hospitalier Henri-Mondor, Department of Nephrology and Renal Transplantation, Créteil, France
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Andre Pawlak
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Mario Ollero
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
| | - Djillali Sahali
- AP-HP (Assistance Publique des Hôpitaux de Paris), Groupe Hospitalier Henri-Mondor, Department of Nephrology and Renal Transplantation, Créteil, France
- UPEC (Université Paris Est Créteil), INSERM (Institut National de la Santé et de la Recherche Médicale) U955, Institut Mondor de Recherche Biomédicale (IMRB), Equipe 21, Créteil, France
- * E-mail:
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11
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Furuto Y, Hashimoto H, Namikawa A, Outi H, Takahashi H, Horiuti H, Honda K, Shibuya Y. Focal segmental glomerulosclerosis lesion associated with inhibition of tyrosine kinases by lenvatinib: a case report. BMC Nephrol 2018; 19:273. [PMID: 30340546 PMCID: PMC6194623 DOI: 10.1186/s12882-018-1074-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 10/05/2018] [Indexed: 12/13/2022] Open
Abstract
Background Lenvatinib is a tyrosine kinase inhibitor with novel binding ability. It is considered the standard of care for metastatic thyroid cancer; moreover, whether it is indicated for other malignant tumors has been examined. Lenvatinib increases the risk of kidney injury in some patients. In comparison with sorafenib, which is a conventional tyrosine kinase inhibitor (TKI), lenvatinib results in more side effects, including hypertension and proteinuria. We describe a case of secondary focal segmental glomerulosclerosis (FSGS) that developed following treatment of metastatic thyroid cancer with lenvatinib and reviewed the mechanisms of renal impairment. Case presentation We describe a patient with metastatic thyroid cancer who developed hypertension, nephrotic syndrome, and acute kidney injury after 3 months of lenvatinib treatment. Renal biopsy results revealed that 7 of 16 glomeruli indicated complete hyalinization, and that the glomeruli with incomplete hyalinization showed FSGS due to a vascular endothelial disorder and podocyte damage, which seemed to have been induced by lenvatinib treatment. These findings were similar to those of renal impairment treated with conventional TKIs. Although lenvatinib treatment was discontinued, up to 15 months were required to achieve remission of proteinuria, thus leading to chronic kidney disease with hyalinized lesions. Conclusions To the best of our knowledge, this is the first reported case of secondary FSGS by lenvatinib treatment. Renal impairment treated with TKIs is commonly associated with minimal change nephrotic syndrome/FSGS findings, and it is suggested that renal involvement with TKI is different from that with the vascular endothelial growth factor ligand. Overexpression of c-mip due to TKI causes disorders such as podocyte dysregulation and promotion of apoptosis, which cause FSGS. Lenvatinib may result in FSGS by a similar mechanism with another TKI and could cause irreversible renal impairment; therefore caution must be used. It is essential to monitor blood pressure, urinary findings, and the renal function.
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Affiliation(s)
- Yoshitaka Furuto
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan.
| | - Hirotsugu Hashimoto
- Department of Diagnostic Pathology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Akio Namikawa
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Haruki Outi
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Hiroko Takahashi
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Hajime Horiuti
- Department of Diagnostic Pathology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
| | - Kazuho Honda
- Department of Microscopic Anatomy, Showa University Hospital, 1-5-8, Hatanodai, Shinagawa-ku, Tokyo, 142-8666, Japan
| | - Yuko Shibuya
- Department of Hypertension and Nephrology, NTT Medical Centre Tokyo, 5-9-22, Higasi-Gotanda, Shinagawa-ku, Tokyo, 141-8625, Japan
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12
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Dumas De La Roque C, Combe C, Rigothier C. [Up to date of pathophysiology mechanism of idiopathic nephrotic syndromes: Minimal change disease and focal and segmental glomerulosclerosis]. Nephrol Ther 2018; 14:501-506. [PMID: 30150079 DOI: 10.1016/j.nephro.2018.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 06/03/2018] [Indexed: 01/27/2023]
Abstract
Idiopathic nephrotic syndrome represents up to 30% of adult glomerulopathies. However, its prognosis according to remission, relapse and renal failure remains unchanged since the 80s and prediction remains difficult. Physiopathology of adult idiopathic nephrotic syndrome is complex and multifactorial, including immunologic and environmental factors and a putative permeability-circulating factor, still unknown. In this point of view, we propose to summarize actual knowledge about idiopathic minimal change disease and focal and segmental glomerulosclerosis physiopathology.
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Affiliation(s)
- Charlotte Dumas De La Roque
- Service de néphrologie transplantation et dialyse, centre hospitalier universitaire de Bordeaux, 33076 Bordeaux, France.
| | - Christian Combe
- Service de néphrologie transplantation et dialyse, centre hospitalier universitaire de Bordeaux, 33076 Bordeaux, France; Inserm U1026, université de Bordeaux, 33076 Bordeaux, France
| | - Claire Rigothier
- Service de néphrologie transplantation et dialyse, centre hospitalier universitaire de Bordeaux, 33076 Bordeaux, France; Inserm U1026, université de Bordeaux, 33076 Bordeaux, France
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13
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Zhang J, Huang J, Wang X, Chen W, Tang Q, Fang M, Qian Y. CMIP is oncogenic in human gastric cancer cells. Mol Med Rep 2017; 16:7277-7286. [PMID: 28944848 PMCID: PMC5865856 DOI: 10.3892/mmr.2017.7541] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 07/17/2017] [Indexed: 12/26/2022] Open
Abstract
Gastric cancer is one of the most common cancers and the second leading cause of cancer-associated mortality worldwide. Recurrence, metastasis and resistance to drug treatment are the main barrier to survival of patients with advanced stage gastric cancer. Further study of the molecular mechanisms involved will improve the therapeutic options for gastric cancer. In a previous study, c-Maf was discovered as an oncogene transduced in the avian AS42 retrovirus, and was found to be overexpressed in multiple myeloma and angioimmunoblastic T-cell lymphoma. c-Maf inducing protein (CMIP) is involved in the c-Maf signaling pathway, which was reported to serve an important role in human minimal change nephrotic syndrome and in human reading and language related behavior. However, the relationship between CMIP and human gastric cancer has not yet been reported. In the present study, CMIP protein levels in gastric cancer tissues and cells were measured using immunohistochemistry and western blot analysis; the expression of CMIP protein was significantly higher in gastric cancer tissues compared with normal gastric tissues. Expression was positively associated with poorer clinical parameters, relapse-free survival and overall survival. Furthermore, using cell counting, Cell Counting Kit-8, colony formation, wound healing and Transwell assays, together with flow cytometry, CMIP depletion by RNA interference was observed to reduce the capacity of gastric cancer cells to proliferate and migrate in vitro. Furthermore, the upstream and downstream genes of CMIP were analyzed by luciferase reporter assay and reverse transcription quantitative polymerase chain reaction, which indicated that CMIP was a direct target of miR-101-3p. In addition, CMIP knockdown was observed to result in the downregulation of MDM2 and mitogen activated protein kinase (MAPK) expression at the mRNA level. In conclusion, CMIP demonstrated an oncogenic role in human gastric cancer cells. Furthermore, microRNA-101-3p, MDM2 and MAPK were involved in the CMIP signaling pathway in gastric cancer. CMIP could be a novel target for further investigation in the clinical therapeutic management of gastric cancer.
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Affiliation(s)
- Jianlin Zhang
- Department of Emergency Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Jin Huang
- Department of Pathology, The Second People's Hospital of Hefei, Hefei, Anhui 230011, P.R. China
| | - Xingyu Wang
- Department of Emergency Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Weidong Chen
- Department of Emergency Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Qinqing Tang
- Department of Emergency Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Maoyong Fang
- Department of Emergency Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
| | - Yeben Qian
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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14
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CMIP Promotes Proliferation and Metastasis in Human Glioma. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5340160. [PMID: 28744466 PMCID: PMC5514325 DOI: 10.1155/2017/5340160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 06/01/2017] [Indexed: 12/15/2022]
Abstract
Glioma is one of the most common primary malignant brain tumors and the outcomes are generally poor. The intrinsic mechanisms involved in glioma development and progression remain unclear. Further studies are urgent and necessary. In this study, we have proven that CMIP (C-Maf-inducing protein) promotes cell proliferation and metastasis in A172 cells through knockdown of CMIP and in U251 cells through overexpression of CMIP by using MTT assay, cell colony formation assay, cell migration assay, and cell invasion assay. Furthermore, we discovered that CMIP upregulates MDM2, which is involved in the promoting role of CMIP in human glioma cells. For clinical study, 99 glioma tissues and 59 normal tissues were analyzed. CMIP expression was higher in glioma tissues than in normal tissues. In glioma tissues, CMIP is found to correlate positively with tumor grade but no significant correlation is found with patients' age, gender, or Karnofsky performance score (KPS). Moreover, CMIP also correlates with low relapse-free survival (RFS) rate and overall survival (OS) rate in glioma patients. Therefore, CMIP is oncogenic and could be a potential target for human glioma diagnosis and therapy.
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15
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Repression of CMIP transcription by WT1 is relevant to podocyte health. Kidney Int 2016; 90:1298-1311. [PMID: 27650733 DOI: 10.1016/j.kint.2016.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 07/11/2016] [Accepted: 07/14/2016] [Indexed: 12/23/2022]
Abstract
The WT1 (Wilm's tumor suppressor) gene is expressed throughout life in podocytes and is essential for the functional integrity of the glomerular filtration barrier. We have previously shown that CMIP (C-Maf inducing protein) is overproduced in podocyte diseases and alters intracellular signaling. Here we isolated the proximal region of the human CMIP promoter and showed by chromatin immunoprecipitation assays and electrophoretic-mobility shift that Wilm's tumor protein (WT1) bound to 2 WT1 response elements, located at positions -290/-274 and -57/-41 relative to transcription start site. Unlike the human CMIP gene, only one Wt1 response element was identified in the mouse Cmip proximal promoter located at position -217/-206. Luciferase reporter assays indicated that WT1 dose-dependently inhibited the transcriptional induction of the CMIP promoter. Transfection of decoy oligonucleotides mimicking the WT1 response elements prevented the inhibition of WT1 on CMIP promoter activity. Furthermore, WT1 silencing promoted Cmip expression. In line with these findings, the abundance of Cmip was early and significantly increased at the transcript and protein level in podocytes displaying a primary defect in Wt1, including Denys-Drash syndrome and Frasier syndrome. Thus, WT1 is a major repressor of the CMIP gene in physiological situations, while conditional deletion of CMIP in the developing kidney did not affect the development of mature glomeruli.
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16
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Zhao X, Hsu KS, Lim JH, Bruggeman LA, Kao HY. α-Actinin 4 potentiates nuclear factor κ-light-chain-enhancer of activated B-cell (NF-κB) activity in podocytes independent of its cytoplasmic actin binding function. J Biol Chem 2014; 290:338-49. [PMID: 25411248 DOI: 10.1074/jbc.m114.597260] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Glomerular podocytes are highly specialized terminally differentiated cells that act as a filtration barrier in the kidney. Mutations in the actin-binding protein, α-actinin 4 (ACTN4), are linked to focal segmental glomerulosclerosis (FSGS), a chronic kidney disease characterized by proteinuria. Aberrant activation of NF-κB pathway in podocytes is implicated in glomerular diseases including proteinuria. We demonstrate here that stable knockdown of ACTN4 in podocytes significantly reduces TNFα-mediated induction of NF-κB target genes, including IL-1β and NPHS1, and activation of an NF-κB-driven reporter without interfering with p65 nuclear translocation. Overexpression of ACTN4 and an actin binding-defective variant increases the reporter activity. In contrast, an FSGS-linked ACTN4 mutant, K255E, which has increased actin binding activity and is predominantly cytoplasmic, fails to potentiate NF-κB activity. Mechanistically, IκBα blocks the association of ACTN4 and p65 in the cytosol. In response to TNFα, both NF-κB subunits p65 and p50 translocate to the nucleus, where they bind and recruit ACTN4 to their targeted promoters, IL-1β and IL-8. Taken together, our data identify ACTN4 as a novel coactivator for NF-κB transcription factors in podocytes. Importantly, this nuclear function of ACTN4 is independent of its actin binding activity in the cytoplasm.
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Affiliation(s)
| | | | | | - Leslie A Bruggeman
- Rammelkamp Center for Education and Research and Department of Medicine, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, Ohio 44106
| | - Hung-Ying Kao
- From the Department of Biochemistry, Case Comprehensive Cancer Center, and
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17
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Gerami P, Alsobrook JP, Palmer TJ, Robin HS. Development of a novel noninvasive adhesive patch test for the evaluation of pigmented lesions of the skin. J Am Acad Dermatol 2014; 71:237-44. [DOI: 10.1016/j.jaad.2014.04.042] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 04/14/2014] [Accepted: 04/16/2014] [Indexed: 11/16/2022]
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18
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Kraja AT, Chasman DI, North KE, Reiner AP, Yanek LR, Kilpeläinen TO, Smith JA, Dehghan A, Dupuis J, Johnson AD, Feitosa MF, Tekola-Ayele F, Chu AY, Nolte IM, Dastani Z, Morris A, Pendergrass SA, Sun YV, Ritchie MD, Vaez A, Lin H, Ligthart S, Marullo L, Rohde R, Shao Y, Ziegler MA, Im HK, Schnabel RB, Jørgensen T, Jørgensen ME, Hansen T, Pedersen O, Stolk RP, Snieder H, Hofman A, Uitterlinden AG, Franco OH, Ikram MA, Richards JB, Rotimi C, Wilson JG, Lange L, Ganesh SK, Nalls M, Rasmussen-Torvik LJ, Pankow JS, Coresh J, Tang W, Linda Kao WH, Boerwinkle E, Morrison AC, Ridker PM, Becker DM, Rotter JI, Kardia SLR, Loos RJF, Larson MG, Hsu YH, Province MA, Tracy R, Voight BF, Vaidya D, O'Donnell CJ, Benjamin EJ, Alizadeh BZ, Prokopenko I, Meigs JB, Borecki IB. Pleiotropic genes for metabolic syndrome and inflammation. Mol Genet Metab 2014; 112:317-38. [PMID: 24981077 PMCID: PMC4122618 DOI: 10.1016/j.ymgme.2014.04.007] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/26/2014] [Accepted: 04/26/2014] [Indexed: 01/11/2023]
Abstract
Metabolic syndrome (MetS) has become a health and financial burden worldwide. The MetS definition captures clustering of risk factors that predict higher risk for diabetes mellitus and cardiovascular disease. Our study hypothesis is that additional to genes influencing individual MetS risk factors, genetic variants exist that influence MetS and inflammatory markers forming a predisposing MetS genetic network. To test this hypothesis a staged approach was undertaken. (a) We analyzed 17 metabolic and inflammatory traits in more than 85,500 participants from 14 large epidemiological studies within the Cross Consortia Pleiotropy Group. Individuals classified with MetS (NCEP definition), versus those without, showed on average significantly different levels for most inflammatory markers studied. (b) Paired average correlations between 8 metabolic traits and 9 inflammatory markers from the same studies as above, estimated with two methods, and factor analyses on large simulated data, helped in identifying 8 combinations of traits for follow-up in meta-analyses, out of 130,305 possible combinations between metabolic traits and inflammatory markers studied. (c) We performed correlated meta-analyses for 8 metabolic traits and 6 inflammatory markers by using existing GWAS published genetic summary results, with about 2.5 million SNPs from twelve predominantly largest GWAS consortia. These analyses yielded 130 unique SNPs/genes with pleiotropic associations (a SNP/gene associating at least one metabolic trait and one inflammatory marker). Of them twenty-five variants (seven loci newly reported) are proposed as MetS candidates. They map to genes MACF1, KIAA0754, GCKR, GRB14, COBLL1, LOC646736-IRS1, SLC39A8, NELFE, SKIV2L, STK19, TFAP2B, BAZ1B, BCL7B, TBL2, MLXIPL, LPL, TRIB1, ATXN2, HECTD4, PTPN11, ZNF664, PDXDC1, FTO, MC4R and TOMM40. Based on large data evidence, we conclude that inflammation is a feature of MetS and several gene variants show pleiotropic genetic associations across phenotypes and might explain a part of MetS correlated genetic architecture. These findings warrant further functional investigation.
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Affiliation(s)
- Aldi T Kraja
- Division of Statistical Genomics, Department of Genetics and Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Kari E North
- Department of Epidemiology and Carolina Center for Genome Sciences, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC, USA.
| | | | - Lisa R Yanek
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Tuomas O Kilpeläinen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Jennifer A Smith
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA.
| | - Abbas Dehghan
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Josée Dupuis
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA; National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Framingham, MA, USA.
| | - Andrew D Johnson
- National Heart, Lung and Blood Institute (NHLBI) Division of Intramural Research and NHLBI's Framingham Heart Study, Framingham, MA, USA.
| | - Mary F Feitosa
- Division of Statistical Genomics, Department of Genetics and Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Fasil Tekola-Ayele
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
| | - Audrey Y Chu
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Ilja M Nolte
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Zari Dastani
- Department of Epidemiology, Biostatistics and Occupational Health, Jewish General Hospital, Lady Davis Institute, McGill University Montreal, Quebec, Canada.
| | - Andrew Morris
- The Welcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK.
| | - Sarah A Pendergrass
- Department of Biochemistry and Molecular Biology, Eberly College of Science and The Huck Institutes of the Life Sciences, The Pennsylvania State University, PA, USA.
| | - Yan V Sun
- Department of Epidemiology, Rollins School of Public Health, and Department of Biomedical Informatics, School of Medicine, Emory University, Atlanta, GA, USA.
| | - Marylyn D Ritchie
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, PA, USA.
| | - Ahmad Vaez
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Honghuang Lin
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
| | - Symen Ligthart
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Letizia Marullo
- The Welcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK; Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Rebecca Rohde
- Department of Epidemiology and Carolina Center for Genome Sciences, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC, USA.
| | - Yaming Shao
- Department of Epidemiology and Carolina Center for Genome Sciences, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, NC, USA.
| | - Mark A Ziegler
- Division of Biostatistics, MSIBS Program, Washington University School of Medicine, St. Louis, MO, USA.
| | - Hae Kyung Im
- Department of Health Studies, University of Chicago, IL, USA.
| | - Renate B Schnabel
- Department of General and Interventional Cardiology University Heart Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Torben Jørgensen
- Research Centre for Prevention and Health, Glostrup Hospital, Glostrup, Denmark; Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark.
| | | | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Ronald P Stolk
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Harold Snieder
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Albert Hofman
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Andre G Uitterlinden
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - Oscar H Franco
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands.
| | - J Brent Richards
- Department of Epidemiology, Biostatistics and Occupational Health, Jewish General Hospital, Lady Davis Institute, McGill University Montreal, Quebec, Canada; Department of Medicine, Human Genetics, Epidemiology and Biostatistics, McGill University, Canada; Department of Twin Research, King's College, London, UK.
| | - Charles Rotimi
- Center for Research on Genomics and Global Health, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA.
| | | | - Leslie Lange
- Department of Genetics, University of North Carolina, NC, USA.
| | - Santhi K Ganesh
- Department of Internal Medicine, University of Michigan, MI, USA.
| | - Mike Nalls
- Molecular Genetics Section, Laboratory of Neurogenetics, National Institute on Aging, NIH, Bethesda, MD, USA.
| | | | - James S Pankow
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.
| | - Josef Coresh
- Department of Medicine, Epidemiology, Biostatistics, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Weihong Tang
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA.
| | - W H Linda Kao
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Eric Boerwinkle
- Human Genetics Center, University of Texas - Houston Health Science Center at Houston, Houston, TX, USA.
| | - Alanna C Morrison
- Human Genetics Center, University of Texas - Houston Health Science Center at Houston, Houston, TX, USA.
| | - Paul M Ridker
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Diane M Becker
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Jerome I Rotter
- Institute for Translational Genomics and Population Sciences, Los Angeles Biomedical Research Institute (LA BioMed), Harbor-UCLA Medical Center, Torrance, CA, USA.
| | - Sharon L R Kardia
- Department of Epidemiology, University of Michigan, Ann Arbor, MI, USA.
| | - Ruth J F Loos
- The Genetics of Obesity and Related Metabolic Traits Program, The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, The Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Martin G Larson
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA; National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Framingham, MA, USA; Department of Mathematics and Statistics, Boston University, Boston, MA, USA.
| | - Yi-Hsiang Hsu
- Hebrew Senior Life Institute for Aging Research, Harvard Medical School and Molecular and Integrative Physiological Sciences, Harvard School of Public Health, Boston, MA, USA.
| | - Michael A Province
- Division of Statistical Genomics, Department of Genetics and Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA.
| | - Russell Tracy
- University of Vermont College of Medicine, Burlington, VT, USA.
| | - Benjamin F Voight
- Department of Pharmacology, University of Pennsylvania - Perelman School of Medicine, Philadelphia, PA, USA; Department of Genetics, University of Pennsylvania - Perelman School of Medicine, Philadelphia, PA, USA.
| | - Dhananjay Vaidya
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Christopher J O'Donnell
- National Heart, Lung and Blood Institute (NHLBI) Division of Intramural Research and NHLBI's Framingham Heart Study, Framingham, MA, USA.
| | - Emelia J Benjamin
- National Heart, Lung, and Blood Institute's and Boston University's Framingham Heart Study, Framingham, MA, USA; Cardiology and Preventive Medicine Sections, Department of Medicine, Boston University School of Medicine, Boston, MA, USA.
| | - Behrooz Z Alizadeh
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
| | - Inga Prokopenko
- Department of Genomics of Common Diseases, School of Public Health, Imperial College London, London W12 0NN, UK.
| | - James B Meigs
- General Medicine Division, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA.
| | - Ingrid B Borecki
- Division of Statistical Genomics, Department of Genetics and Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO, USA.
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19
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Sahali D, Sendeyo K, Mangier M, Audard V, Zhang SY, Lang P, Ollero M, Pawlak A. Immunopathogenesis of idiopathic nephrotic syndrome with relapse. Semin Immunopathol 2014; 36:421-9. [PMID: 24402710 DOI: 10.1007/s00281-013-0415-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 12/03/2013] [Indexed: 12/14/2022]
Abstract
Idiopathic change nephrotic syndrome (INS), the most frequent glomerular disease in children and young adults, is characterized by heavy proteinuria and a relapsing remitting course. Although the mechanisms underlying the pathophysiology of proteinuria remain unclear, clinical and experimental observations suggest that lymphocyte and podocyte disturbances are two sides of the disease. The current hypothesis suggests that immune cells release a putative factor, which alters podocyte function resulting in nephrotic proteinuria. Besides T-cell abnormalities, recent evidence of B-cell depletion efficacy in sustained remissions added a new challenge in understanding the immunological mechanisms of INS. In this review, we discuss recent insights related to podocyte disorders occurring in INS and their relevance in human diseases.
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Affiliation(s)
- Djillali Sahali
- Service de Néphrologie et Transplantation, AP-HP, CHU Henri Mondor, Creteil, 94010, France,
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20
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Yang SM, Hua KF, Lin YC, Chen A, Chang JM, Kuoping Chao L, Ho CL, Ka SM. Citral is renoprotective for focal segmental glomerulosclerosis by inhibiting oxidative stress and apoptosis and activating Nrf2 pathway in mice. PLoS One 2013; 8:e74871. [PMID: 24069362 PMCID: PMC3775727 DOI: 10.1371/journal.pone.0074871] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 08/08/2013] [Indexed: 02/07/2023] Open
Abstract
The pathogenesis of focal segmental glomerulosclerosis (FSGS) is considered to be associated with oxidative stress, mononuclear leukocyte recruitment and infiltration, and matrix production and/or matrix degradation, although the exact etiology and pathogenic pathways remain to be determined. Establishment of a pathogenesis-based therapeutic strategy for the disease is clinically warranted. Citral (3,7-dimethyl-2,6-octadienal), a major active compound in Litseacubeba, a traditional Chinese herbal medicine, can inhibit oxidant activity, macrophage and NF-κB activation. In the present study, first, we used a mouse model of FSGS with the features of glomerular epithelial hyperplasia lesions (EPHLs), a key histopathology index of progression of FSGS, peri-glomerular inflammation, and progressive glomerular hyalinosis/sclerosis. When treated with citral for 28 consecutive days at a daily dose of 200 mg/kg of body weight by gavage, the FSGS mice showed greatly reduced EPHLs, glomerular hyalinosis/sclerosis and peri-glomerular mononuclear leukocyte infiltration, suggesting that citral may be renoprotective for FSGS and act by inhibiting oxidative stress and apoptosis and early activating the Nrf2 pathway. Meanwhile, a macrophage model involved in anti-oxidative and anti-inflammatory activities was employed and confirmed the beneficial effects of citral on the FSGS model.
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Affiliation(s)
- Shun-Min Yang
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, R.O.C
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C
| | - Kuo-Feng Hua
- Department of Biotechnology and Animal Science, National Ilan University, Ilan, Taiwan, R.O.C
| | - Yu-Chuan Lin
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, R.O.C
| | - Ann Chen
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C
| | - Jia-Ming Chang
- Department of Pharmacology, Institute for Drug Evaluation Platform, Development Center for Biotechnology, Taipei, Taiwan, R.O.C
| | - Louis Kuoping Chao
- Department of Cosmeceutics, China Medical University, Taichung, Taiwan, R.O.C
| | - Chen-Lung Ho
- Division of Wood Cellulose, Taiwan Forestry Research Institute, Taipei, Taiwan, R.O.C
| | - Shuk-Man Ka
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan, R.O.C.
- * E-mail: ;
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21
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Yu L, Lin Q, Feng J, Dong X, Chen W, Liu Q, Ye J. Inhibition of nephrin activation by c-mip through Csk–Cbp–Fyn axis plays a critical role in Angiotensin II-induced podocyte damage. Cell Signal 2013. [DOI: 10.1016/j.cellsig.2012.11.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Upregulation of c-mip is closely related to podocyte dysfunction in membranous nephropathy. Kidney Int 2013; 83:414-25. [PMID: 23302718 DOI: 10.1038/ki.2012.426] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Membranous nephropathy is a glomerular disease typified by a nephrotic syndrome without infiltration of inflammatory cells or proliferation of resident cells. Although the cause of the disease is unknown, the primary pathology involves the generation of autoantibodies against antigen targets on the surface of podocytes. The mechanisms of nephrotic proteinuria, which reflect a profound podocyte dysfunction, remain unclear. We previously found a new gene, c-mip (c-maf-inducing protein), that was associated with the pathophysiology of idiopathic nephrotic syndrome. Here we found that c-mip was not detected in the glomeruli of rats with passive-type Heymann nephritis given a single dose of anti-megalin polyclonal antibody, yet immune complexes were readily present, but without triggering of proteinuria. Rats reinjected with anti-megalin develop heavy proteinuria a few days later, concomitant with c-mip overproduction in podocytes. This overexpression was associated with the downregulation of synaptopodin in patients with membranous nephropathy, rats with passive Heymann nephritis, and c-mip transgenic mice, while the abundance of death-associated protein kinase and integrin-linked kinase was increased. Cyclosporine treatment significantly reduced proteinuria in rats with passive Heymann nephritis, concomitant with downregulation of c-mip in podocytes. Thus, c-mip has an active role in the podocyte disorders of membranous nephropathy.
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