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The Role of Notch3 Signaling in Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1809408. [PMID: 33149805 PMCID: PMC7603621 DOI: 10.1155/2020/1809408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/28/2020] [Accepted: 10/04/2020] [Indexed: 12/17/2022]
Abstract
Notch receptors are transmembrane proteins that are members of the epidermal growth factor-like family. These receptors are widely expressed on the cell surface and are highly conserved. Binding to ligands on adjacent cells results in cleavage of these receptors, and their intracellular domains translocate into the nucleus, where target gene transcription is initiated. In the mammalian kidney, Notch receptors are activated during nephrogenesis and become silenced in the normal kidney after birth. Reactivation of Notch signaling in the adult kidney could be due to the genetic activation of Notch signaling or kidney injury. Notch3 is a mammalian heterodimeric transmembrane receptor in the Notch gene family. Notch3 activation is significantly increased in various glomerular diseases, renal tubulointerstitial diseases, glomerular sclerosis, and renal fibrosis and mediates disease occurrence and development. Here, we discuss numerous recently published papers describing the role of Notch3 signaling in kidney disease.
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2
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Huang M, Zhang J, Xu H, Ding T, Tang D, Yuan Q, Tao L, Ye Z. The TGFβ-ERK pathway contributes to Notch3 upregulation in the renal tubular epithelial cells of patients with obstructive nephropathy. Cell Signal 2018; 51:139-151. [PMID: 30081092 DOI: 10.1016/j.cellsig.2018.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 01/01/2023]
Abstract
Renal interstitial fibrosis is a common renal injury resulted from a variety of chronic kidney conditions and an array of factors. We report here that Notch3 is a potential contributor. In comparison to 6 healthy individuals, a robust elevation of Notch3 expression was observed in the renal tubular epithelial cells of 18 patients with obstructive nephropathy. In a rat unilateral ureteral obstruction (UUO) model which mimics the human disease, Notch3 upregulation closely followed the course of renal injury, renal fibrosis, TGFβ expression, and alpha-smooth muscle actin (α-SMA) expression, suggesting a role of Notch3 in promoting tubulointerstitial fibrosis. This possibility was supported by the observation that TGFβ, the major renal fibrogenic cytokine, stimulated Notch3 expression in human proximal tubule epithelial HK-2 cells. TGFβ enhanced the activation of ERK, p38, but not JNK MAP kinases in HK-2 cells. While inhibition of p38 activation using SB203580 did not affect TGFβ-induced Notch3 expression, inhibition of ERK activation with a MEK1 inhibitor PD98059 dramatically reduced the event. Furthermore, enforced ERK activation through overexpression of the constitutively active MEK1 mutant MEK1Q56P upregulated Notch3 expression in HK-2 cells, and PD98059 reduced ERK activation and Notch3 expression in HK-2 cells expressing MEK1Q56P. Collectively, we provide the first clinical evidence for Notch3 upregulation in patients with obstructive nephropathy; the upregulation is likely mediated through the TGFβ-ERK pathway. This study suggests that Notch3 upregulation contributes to renal injury caused by obstructive nephropathy, which could be prevented or delayed through ERK inhibition.
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Affiliation(s)
- Mei Huang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jin Zhang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | - Hui Xu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
| | - Ting Ding
- Department of Nephrology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, China
| | - Damu Tang
- Division of Nephrology, Department of Medicine, McMaster University, Canada; The Hamilton Center for Kidney Research, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Qiongjing Yuan
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Lijian Tao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410008, China
| | - Zunlong Ye
- 1717 Class, ChangJun High School of Changsha, Changsha, Hunan 410002, China
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Hamamoto H, Maemura K, Matsuo K, Taniguchi K, Tanaka Y, Futaki S, Takeshita A, Asai A, Hayashi M, Hirose Y, Kondo Y, Uchiyama K. Delta-like 3 is silenced by HBx via histone acetylation in HBV-associated HCCs. Sci Rep 2018; 8:4842. [PMID: 29555949 PMCID: PMC5859037 DOI: 10.1038/s41598-018-23318-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 03/08/2018] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a common malignant tumor with poor prognosis. We previously showed that expression of Delta-like 3 (DLL3), a member of the family of Delta/Serrate/Lag2 ligands for the Notch receptor, is silenced by aberrant DNA methylation and that overexpression of DLL3 in an HCC cell line induces cellular apoptosis. However, how DLL3 expression is regulated during hepatocarcinogenesis is still unclear. Here, we show that silencing of DLL3 during hepatocarcinogenesis is closely related to viral infection, especially hepatitis B virus (HBV) infection (p = 0.005). HepG2.2.15 cells, which are stably transformed with the HBV genome, showed lower DLL3 expression than the parent cell line, HepG2 cells. Treatment with Hepatitis B virus X protein (HBx) small interfering RNA upregulated DLL3 expression in HepG2.2.15 cells, and overexpression of HBx in HepG2 cells downregulated DLL3 expression. Treatment of cells with a histone deacetylase inhibitor induced DLL3 expression in HepG2.2.15 cells. These data suggest that DLL3 expression is silenced during hepatocarcinogenesis in association with HBV infection via an epigenetic mechanism.
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Affiliation(s)
- Hiroki Hamamoto
- Departments of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, 569-8686, Japan.
| | - Kentaro Maemura
- Departments of Anatomy and Cell Biology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Kentaro Matsuo
- Departments of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Kohei Taniguchi
- Departments of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Yoshihisa Tanaka
- Departments of Anatomy and Cell Biology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Sugiko Futaki
- Departments of Anatomy and Cell Biology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Atsushi Takeshita
- Departments of Pathology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Akira Asai
- Second Department of Internal Medicine, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Michihiro Hayashi
- Departments of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Yoshinobu Hirose
- Departments of Pathology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Yoichi Kondo
- Departments of Anatomy and Cell Biology, Osaka Medical College, Takatsuki, 569-8686, Japan
| | - Kazuhisa Uchiyama
- Departments of General and Gastroenterological Surgery, Osaka Medical College, Takatsuki, 569-8686, Japan
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Yao M, Gao F, Wang X, Shi Y, Liu S, Duan H. Nox4 is involved in high glucose-induced apoptosis in renal tubular epithelial cells via Notch pathway. Mol Med Rep 2017; 15:4319-4325. [DOI: 10.3892/mmr.2017.6516] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 02/22/2017] [Indexed: 11/06/2022] Open
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Antiosteoporotic Effects of Huangqi Sanxian Decoction in Cultured Rat Osteoblasts by Proteomic Characterization of the Target and Mechanism. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:514063. [PMID: 26557149 PMCID: PMC4628673 DOI: 10.1155/2015/514063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 06/05/2015] [Accepted: 06/24/2015] [Indexed: 01/01/2023]
Abstract
Huangqi Sanxian decoction (HQSXD) is routinely used for the treatment of osteoporosis in the Chinese traditional healthcare system. However, the targets and mechanism underlying the effect of HQSXD on osteoporosis have not been documented. In the present study, seropharmacology and proteomic approaches (two-dimensional gel electrophoresis combined with mass spectrometry) were used to investigate the effects and possible target proteins of HQSXD on osteoblast. We found that HQSXD-treated rat serum significantly enhanced osteoblast proliferation, differentiation, and mineralization. In HQSXD-S-treated osteoblasts, there were increases in the expression of N-formyl peptide receptor 2 and heparan sulfate (glucosamine) 3-O-sulfotransferase 3A1 and reduction in the expression of alpha-spectrin, prohibitin, and transcription elongation factor B (SIII), polypeptide 1. The identified proteins are associated with cell proliferation, differentiation, signal transcription, and cell growth. These findings might provide valuable insights into the mechanism of antiosteoporotic effect affected by HQSXD treatment in osteoblasts.
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Ramakrishnan G, Davaakhuu G, Chung WC, Zhu H, Rana A, Filipovic A, Green AR, Atfi A, Pannuti A, Miele L, Tzivion G. AKT and 14-3-3 regulate Notch4 nuclear localization. Sci Rep 2015; 5:8782. [PMID: 25740432 PMCID: PMC4350099 DOI: 10.1038/srep08782] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 02/03/2015] [Indexed: 02/08/2023] Open
Abstract
Members of the Notch family of transmembrane receptors, Notch1-4 in mammals, are involved in the regulation of cell fate decisions and cell proliferation in various organisms. The Notch4 isoform, which is specific to mammals, was originally identified as a viral oncogene in mice, Int3, able to initiate mammary tumors. In humans, Notch4 expression appears to be associated with breast cancer stem cells and endocrine resistance. Following ligand binding, the Notch4 receptor undergoes cleavage at the membrane and the Notch4-intracellular domain (ICD), translocates to the nucleus and regulates gene transcription. Little is known on the mechanisms regulating Notch4-ICD and its nuclear localization. Here, we describe the identification of four distinct AKT phosphorylation sites in human Notch4-ICD and demonstrate that AKT binds Notch4-ICD and phosphorylates all four sites in vitro and in vivo. The phosphorylation in cells is regulated by growth factors and is sensitive to phosphatidyl inositol-3 kinase (PI3K) inhibitors. This phosphorylation generates binding sites to the 14-3-3 regulatory proteins, which are involved in the regulation of nucleocytoplasmic shuttling of target proteins, restricting phosphorylated Notch4-ICD to the cytoplasm. Our findings provide a novel mechanism for Notch4-ICD regulation, suggesting a negative regulatory role for the PI3K-AKT pathway in Notch4 nuclear signaling.
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Affiliation(s)
| | - Gantulga Davaakhuu
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216
| | - Wen Cheng Chung
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216
| | - He Zhu
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216
| | - Ajay Rana
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Maywood, IL 60153
| | - Aleksandra Filipovic
- Imperial College London, Division of Surgery and Cancer, Department of Oncology, Hammersmith Hospital Campus, Du Cane Road, London, W12 0NN, UK
| | - Andrew R Green
- Department of Histopathology and School of Molecular Medical Sciences, University of Nottingham, Nottingham City Hospital, Nottingham, NG5 1PB, UK
| | - Azeddine Atfi
- 1] Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216 [2] Department of Biochemistry, University of Mississippi Medical Center, Jackson, MS 39216
| | - Antonio Pannuti
- 1] Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216 [2] Department of Biochemistry, University of Mississippi Medical Center, Jackson, MS 39216
| | - Lucio Miele
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216
| | - Guri Tzivion
- 1] Cancer Institute, University of Mississippi Medical Center, Jackson, MS 39216 [2] Department of Biochemistry, University of Mississippi Medical Center, Jackson, MS 39216
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Muradashvili N, Khundmiri SJ, Tyagi R, Gartung A, Dean WL, Lee MJ, Lominadze D. Sphingolipids affect fibrinogen-induced caveolar transcytosis and cerebrovascular permeability. Am J Physiol Cell Physiol 2014; 307:C169-79. [PMID: 24829496 DOI: 10.1152/ajpcell.00305.2013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Inflammation-induced vascular endothelial dysfunction can allow plasma proteins to cross the vascular wall, causing edema. Proteins may traverse the vascular wall through two main pathways, the paracellular and transcellular transport pathways. Paracellular transport involves changes in endothelial cell junction proteins, while transcellular transport involves caveolar transcytosis. Since both processes are associated with filamentous actin formation, the two pathways are interconnected. Therefore, it is difficult to differentiate the prevailing role of one or the other pathway during various pathologies causing an increase in vascular permeability. Using a newly developed dual-tracer probing method, we differentiated transcellular from paracellular transport during hyperfibrinogenemia (HFg), an increase in fibrinogen (Fg) content. Roles of cholesterol and sphingolipids in formation of functional caveolae were assessed using a cholesterol chelator, methyl-β-cyclodextrin, and the de novo sphingolipid synthesis inhibitor myriocin. Fg-induced formation of functional caveolae was defined by association and colocalization of Na+-K+-ATPase and plasmalemmal vesicle-associated protein-1 with use of Förster resonance energy transfer and total internal reflection fluorescence microscopy, respectively. HFg increased permeability of the endothelial cell layer mainly through the transcellular pathway. While MβCD blocked Fg-increased transcellular and paracellular transport, myriocin affected only transcellular transport. Less pial venular leakage of albumin was observed in myriocin-treated HFg mice. HFg induced greater formation of functional caveolae, as indicated by colocalization of Na+-K+-ATPase with plasmalemmal vesicle-associated protein-1 by Förster resonance energy transfer and total internal reflection fluorescence microscopy. Our results suggest that elevated blood levels of Fg alter cerebrovascular permeability mainly by affecting caveolae-mediated transcytosis through modulation of de novo sphingolipid synthesis.
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Affiliation(s)
- Nino Muradashvili
- Department of Physiology and Biophysics, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Syed Jalal Khundmiri
- Kidney Disease Program, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Reeta Tyagi
- Department of Physiology and Biophysics, School of Medicine, University of Louisville, Louisville, Kentucky
| | - Allison Gartung
- Department of Pathology, School of Medicine, Wayne State University, Detroit, Michigan
| | - William L Dean
- Department of Biochemistry and Molecular Biology, School of Medicine, University of Louisville, Louisville, Kentucky; and
| | - Menq-Jer Lee
- Department of Pathology, School of Medicine, Wayne State University, Detroit, Michigan
| | - David Lominadze
- Department of Physiology and Biophysics, School of Medicine, University of Louisville, Louisville, Kentucky;
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Khundmiri SJ, Salyer SA, Farmer B, Qipshidze-Kelm N, Murray RD, Clark BJ, Xie Z, Pressley TA, Lederer ED. Structural determinants for the ouabain-stimulated increase in Na-K ATPase activity. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:1089-102. [PMID: 24566089 DOI: 10.1016/j.bbamcr.2014.02.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 02/06/2014] [Accepted: 02/12/2014] [Indexed: 01/11/2023]
Abstract
Recent studies suggest that at low concentrations, ouabain increases Na-K ATPase and NHE1 activity and activates the Src signaling cascade in proximal tubule cells. Our laboratory demonstrated that low concentrations of ouabain increase blood pressure in rats. We hypothesize that ouabain-induced increase in blood pressure and Na-K ATPase activity requires NHE1 activity and association. To test this hypothesis we treated rats with ouabain (1μgkg body wt(-1)day(-1)) for 9days in the presence or absence of the NHE1 inhibitor, zoniporide. Ouabain stimulated a significant increase in blood pressure which was prevented by zoniporide. Using NHE1-expressing Human Kidney cells 2 (HK2), 8 (HK8) and 11 (HK11) and Mouse Kidney cells from Wild type (WT) and NHE1 knock-out mice (SWE) cell lines, we show that ouabain stimulated Na-K ATPase activity and surface expression in a Src-dependent manner in NHE1-expressing cells but not in NHE1-deplete cells. Zoniporide prevented ouabain-induced stimulation of (86)Rb uptake in the NHE1-expressing cells. FRET and TIRF microscopy showed that ouabain increased association between GFP-NHE1 and mCherry-Na-K ATPase transfected into NHE1-deficient SWE cells. Mutational analysis demonstrated that the caveolin binding motif (CBM) of Na-K ATPase α1 is required for translocation of both Na-K ATPase α1 and NHE1 to the basolateral membrane. Mutations in activity or scaffold domains of NHE1 resulted in loss of ouabain-mediated regulation of Na-K ATPase. These results support that NHE1 is required for the ouabain-induced increase in blood pressure, and that the caveolin binding motif of Na-K ATPase α1 as well as the activity and scaffolding domains of NHE1 are required for their functional association.
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Affiliation(s)
- Syed J Khundmiri
- Robley Rex Veterans Affairs Medical Center, Louisville, KY, USA; Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, KY, USA; Department of Physiology, University of Louisville, Louisville, KY, USA.
| | - Sarah A Salyer
- Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, KY, USA; Department of Physiology, University of Louisville, Louisville, KY, USA
| | - Brandon Farmer
- Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, KY, USA
| | | | - Rebecca D Murray
- Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, KY, USA; Department of Physiology, University of Louisville, Louisville, KY, USA
| | - Barbara J Clark
- Department of Biochemistry and Molecular Biology, University of Louisville, Louisville, KY, USA
| | - Zijian Xie
- Department of Physiology, University of Toledo College of Medicine, Toledo, OH, USA
| | - Thomas A Pressley
- Department of Cell Physiology and Molecular Biophysics, Texas Tech Univ. Health Sciences Center, Lubbock, TX, USA
| | - Eleanor D Lederer
- Robley Rex Veterans Affairs Medical Center, Louisville, KY, USA; Department of Medicine/Kidney Disease Program, University of Louisville, Louisville, KY, USA; Department of Physiology, University of Louisville, Louisville, KY, USA
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Abstract
Notch receptors and their canonical ligands are transmembrane proteins of the EGF-like family, expressed in the cell surface. Notch receptors are synthesized as single peptides and undergo three sequential proteolytic cleavage steps before rendering an active transcription factor, the Notch intracellular domain (NICD). Ligand binding facilitates release of NICD by γ-secretase. Evidence for the role of the Notch pathway in kidney injury comes from studies on activation of Notch by canonical ligands in cultured cells, on inhibition/targeting of γ-secretase in culture or in vivo, on genetic deletion of common Notch pathway proteins such as CSL, or descriptions of increased transcription of Notch target genes in kidney injury. Inhibitors of γ-secretase prevent fibrosis in experimental kidney injury. However, these drugs may modulate other signalling systems beyond Notch and are toxic in human trials. Information regarding the specific contribution of each receptor to kidney injury may help design better targeted therapeutic approaches. In this regard, overexpression of NICD1, NCID2, NICD3 or NICD4 elicits biological responses in cultured renal cells that include cell proliferation, apoptosis, and inflammatory and profibrotic responses, depending on the particular NICD. Furthermore, immunostaining for NICD1, NICD2, and NICD4 suggestive of receptor activation has been observed in glomerular and tubular cells in human and experimental kidney disease. Delayed conditional Notch1 or Notch2 inactivation facilitates cyst formation, and NICD1 overexpression in podocytes or tubular cells promotes glomerulosclerosis and interstitial fibrosis. Kidney injury is a feature of human Notch2 mutations and CADASIL patients with mutated Notch3 may display renal injury. Notch3-/- mice display increased sensitivity to angiotensin II-induced kidney injury but are less sensitive to tubular injury, inflammation, and fibrosis following unilateral ureteral obstruction. The recent availability of blocking antibodies specific for Notch1, Notch2, and Notch3 may help to elucidate the therapeutic potential of specific targeting of individual Notch receptors in kidney disease.
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