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https://www.readbyqxmd.com/read/29790392/interleukin-1-receptor-il-1r1-activation-exacerbates-toxin-induced-acute-kidney-injury
#1
Jamie R Privratsky, Jiandong Zhang, Xiaohan Lu, Nathan Rudemiller, Qingqing Wei, Yen-Rei Yu, Michael Dee Gunn, Steven D Crowley
Acute kidney injury (AKI) is a leading cause of morbidity and mortality. Cisplatin is an effective chemotherapeutic agent whose administration is limited by nephrotoxicity. Therapies to prevent cisplatin-induced AKI are lacking. While tumor necrosis factor-α (TNF) plays a key role in the pathogenesis of cisplatin nephrotoxicity, the immune signaling pathways that trigger TNF generation in this context require elucidation. Sterile injury triggers the release and activation of both isoforms of interleukin(IL)-1, IL-1α and IL-1β, and stimulation of the interleukin-1 receptor (IL-1R1) by these ligands engages a pro-inflammatory signaling cascade that induces TNF induction...
May 23, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29751972/notch3-orchestrates-epithelial-and-inflammatory-responses-to-promote-acute-kidney-injury
#2
Panagiotis Kavvadas, Zela Keuylian, Niki Prakoura, Sandrine Placier, Aude Dorison, Christos E Chadjichristos, Jean-Claude Dussaule, Christos Chatziantoniou
Acute kidney injury is a major risk factor for subsequent chronic renal and/or cardiovascular complications. Previous studies have shown that Notch3 was de novo expressed in the injured renal epithelium in the early phases of chronic kidney disease. Here we examined whether Notch3 is involved in the inflammatory response and the epithelial cell damage that typifies ischemic kidneys using Notch3 knockout mice and mice with short-term activated Notch3 signaling (N3ICD) in renal epithelial cells. After ischemia/reperfusion, N3ICD mice showed exacerbated infiltration of inflammatory cells and severe tubular damage compared to control mice...
May 8, 2018: Kidney International
https://www.readbyqxmd.com/read/29749549/enhanced-proliferation-and-differentiation-of-ho-1-gene-modified-bone-marrow-derived-mesenchymal-stem-cells-in-the-acute-injured-kidney
#3
Nanmei Liu, Huiling Wang, Guofeng Han, Jin Cheng, Weifeng Hu, Jinyuan Zhang
The aim of the present study was to investigate the effect of heme oxygenase-1 (HO-1) overexpression on the survival and differentiation ability of bone marrow‑derived mesenchymal stem cells (BMSCs) in the acute kidney injury (AKI) microenvironment. HO-1-BMSCs and enhanced green fluorescent protein (eGFP)-BMSCs were constructed. Rat ischemia/reperfusion (I/R)‑AKI-kidney homogenate supernatant was prep-ared to treat the BMSCs, eGFP-BMSCs and HO-1-BMSCs in vitro. In the AKI microenvironment, the HO-1-BMSCs exhibited a smaller proportion of cells at the G0/G1 phase, and a larger proportion of cells expressing proliferating cell nuclear antigen (PCNA) and cytokeratin 18 (CK18)...
May 11, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29731819/cytoprotective-effect-of-aquaporin-1-against-lipopolysaccharide-induced-apoptosis-and-inflammation-of-renal-epithelial-hk-2-cells
#4
Yiduo Wang, Wenzheng Zhang, Guangzhe Yu, Qian Liu, Yingyu Jin
Sepsis is the most common underlying disease of disseminated intravascular coagulation. Acute kidney injury is a common and serious complications of sepsis. In the present study, a lipopolysaccharide (LPS)-induced human proximal tubule cell line (HK-2 cells) was selected as an in vitro model of septic acute kidney injury. The aim of the present study was to investigate whether aquaporin 1 (AQP-1) has a cytoprotective role in LPS-induced HK-2 cells. HK-2 cells were treated with 0-16 µg/ml LPS for 0-24 h to establish the in vitro model of sepsis...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29702491/acute-kidney-injury-to-chronic-kidney-disease-transition-insufficient-cellular-stress-response
#5
Sarah A Strausser, Daisuke Nakano, Tomokazu Souma
PURPOSE OF REVIEW: Recent epidemiological and preclinical mechanistic studies provide strong evidence that acute kidney injury (AKI) and chronic kidney disease (CKD) form an interconnected syndrome. Injured kidneys undergo a coordinated reparative process with an engagement of multiple cell types after injury; however, maladaptation to the injury subjects kidneys to a vicious cycle of fibrogenesis and nephron loss. In this review, we will outline and discuss the pathogenesis of AKI-to-CKD transition with an emphasis on dysregulated 'cellular stress adaptation' as a potential therapeutic target...
April 26, 2018: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/29550485/leucine-rich-%C3%AE-2-glycoprotein-is-a-potential-urinary-biomarker-for-renal-tubular-injury
#6
Hyun Lee, Minoru Fujimoto, Tomoharu Ohkawara, Hiromi Honda, Satoshi Serada, Yoshio Terada, Tetsuji Naka
Recent evidence suggests that renal tubular injury plays a key role in deterioration of renal function in both chronic kidney disease (CKD) and acute kidney injury (AKI). Since commonly used biochemical indicators such as GFR, serum creatinine, blood urea nitrogen and creatinine clearance are inappropriate for detecting alteration in renal tubules, biomarkers reflecting renal tubular injury have been extensively explored. Our research group identified leucine rich α-2 glycoprotein (LRG) as a novel serum biomarker for various inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease...
April 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29446737/gene-modified-mesenchymal-stem-cell-based-therapy-in-renal-ischemia-reperfusion-injury
#7
Hongbo Xu, Cheng Chen, Linkun Hu, Jianquan Hou
Acute Kidney Injury (AKI) is a common syndrome in the clinic and has become a worldwide public health problem. Renal Ischemia-Reperfusion Injury (IRI) is the most common cause of AKI. So far, effective treatment is still lacking for renal IRI, resulting in a high mortality rate of AKI. Mesenchymal Stem Cells (MSCs), considered as a promising candidate for tissue repair and regenerative medicine have aroused an increasing concern in recent years for the capacity of self-renewal and multi-lineage differentiation...
2017: Current Gene Therapy
https://www.readbyqxmd.com/read/29364168/renal-tubule-repair-is-wnt-%C3%AE-catenin-a-friend-or-foe
#8
REVIEW
Leslie S Gewin
Wnt/β-catenin signaling is extremely important for proper kidney development. This pathway is also upregulated in injured renal tubular epithelia, both in acute kidney injury and chronic kidney disease. The renal tubular epithelium is an important target of kidney injury, and its response (repair versus persistent injury) is critical for determining whether tubulointerstitial fibrosis, the hallmark of chronic kidney disease, develops. This review discusses how Wnt/β-catenin signaling in the injured tubular epithelia promotes either repair or fibrosis after kidney injury...
January 24, 2018: Genes
https://www.readbyqxmd.com/read/29313905/renal-complications-of-anaesthesia
#9
REVIEW
J McKinlay, E Tyson, L G Forni
Peri-operative acute kidney injury is common, accounting for 30-40% of all in-hospital cases of acute kidney injury. It is associated with clinically significant morbidity and mortality even with what was hitherto regarded as relatively trivial increases in serum creatinine, and carries over a 12-fold relative risk of death following major abdominal surgery. Comorbid conditions such as diabetes, hypertension, liver disease and particularly pre-existing chronic kidney disease, as well as the type and urgency of surgery, are major risk factors for the development of postoperative acute kidney injury...
January 2018: Anaesthesia
https://www.readbyqxmd.com/read/29275176/cxcl16-rock1-signaling-pathway-exacerbates-acute-kidney-injury-induced-by-ischemia-reperfusion
#10
Hua Liang, Meijuan Liao, Weicheng Zhao, Xueqin Zheng, Feng Xu, Hanbing Wang, Jian Huang
Renal ischemia-reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI) resulting in an abrupt deterioration of kidney function. CXC chemokine ligand 16 (CXCL16) contributes significantly to the pathogenesis of renal injury. However, the signaling pathway mechanisms of CXCL16 in IRI-induced AKI remains obscured. In this study, we examined the role of the CXCL16/ Rho Associated Coiled-Coil Containing Protein Kinase-1 (ROCK1) signaling pathway in AKI induced by IRI. In vivo, CXCL16 was induced markedly after IRI...
February 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29234893/the-clinical-relevance-of-plasma-cd147-basigin-in-biopsy-proven-kidney-diseases
#11
Yoshiko Mori, Tomohiro Masuda, Tomoki Kosugi, Tomoki Yoshioka, Mayuko Hori, Hiroshi Nagaya, Kayaho Maeda, Yuka Sato, Hiroshi Kojima, Noritoshi Kato, Takuji Ishimoto, Takayuki Katsuno, Yukio Yuzawa, Kenji Kadomatsu, Shoichi Maruyama
BACKGROUND: Precise understanding of kidney disease activity is needed to design therapeutic strategies. CD147/basigin is involved in the pathogenesis of acute kidney injury and renal fibrosis through inflammatory cell infiltration. The present study examined the clinical relevance of CD147 in biopsy-proven kidney diseases that lead to the progression of chronic kidney disease. METHODS: Kidney biopsy specimens and plasma and urine samples were obtained from patients with kidney diseases, including IgA nephropathy (IgAN), Henoch-Schönlein purpura nephritis (HSPN), diabetic kidney disease (DKD), focal segmental glomerulosclerosis (FSGS), and membranous nephropathy (MN), who underwent renal biopsy between 2011 and 2014...
December 12, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29211403/the-role-of-fetal-maternal-microchimerism-as-a-natural-born-healer-in-integrity-improvement-of-maternal-damaged-kidney
#12
Abdol-Mohammad Kajbafzadeh, Shabnam Sabetkish, Nastaran Sabetkish
PURPOSE: To identify the fetal stem cell (FSC) response to maternal renal injury with emphasis on renal integrity improvement and Y chromosome detection in damaged maternal kidney. MATERIALS AND METHODS: Eight non-green fluorescent protein (GFP) transgenic Sprague- Dawley rats were mated with GFP-positive transgenic male rats. Renal damage was induced on the right kidney at gestational day 11. The same procedure was performed in eight non-pregnant rats as control group...
December 7, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29200200/wogonin-protects-against-cisplatin-induced-acute-kidney-injury-by-targeting-ripk1-mediated-necroptosis
#13
Xiao-Ming Meng, Hai-Di Li, Wei-Feng Wu, Patrick Ming-Kuen Tang, Gui-Ling Ren, Li Gao, Xiao-Feng Li, Yang Yang, Tao Xu, Tao-Tao Ma, Zeng Li, Cheng Huang, Lei Zhang, Xiong-Wen Lv, Jun Li
Acute kidney injury (AKI), characterized by aggressive inflammatory responses and destruction of renal resident cells, can cause abrupt kidney dysfunction. To date, effective therapy for AKI is lacking. In this study, we evaluated the renoprotective effect of wogonin, an herbal active compound, using a cisplatin-induced AKI mouse model. In vivo results show that wogonin substantially suppressed the increased levels of serum creatinine and blood urea nitrogen (BUN) almost to the normal level. Wogonin also attenuated tubular damage, shown by PAS staining, electron microscopy and molecular analysis of KIM-1...
January 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29179690/unique-proximal-tubular-cell-injury-and-the-development-of-acute-kidney-injury-in-adult-patients-with-minimal-change-nephrotic-syndrome
#14
Yoshihide Fujigaki, Yoshifuru Tamura, Michito Nagura, Shigeyuki Arai, Tatsuru Ota, Shigeru Shibata, Fukuo Kondo, Yutaka Yamaguchi, Shunya Uchida
BACKGROUND: Adult patients with minimal change nephrotic syndrome (MCNS) are often associated with acute kidney injury (AKI). To assess the mechanisms of AKI, we examined whether tubular cell injuries unique to MCNS patients exist. METHODS: We performed a retrospective analysis of clinical data and tubular cell changes using the immunohistochemical expression of vimentin as a marker of tubular injury and dedifferentiation at kidney biopsy in 37 adult MCNS patients...
November 28, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29109726/il-36%C3%AE-regulates-tubulointerstitial-inflammation-in-the-mouse-kidney
#15
Osamu Ichii, Junpei Kimura, Tadashi Okamura, Taro Horino, Teppei Nakamura, Hayato Sasaki, Yaser Hosny Ali Elewa, Yasuhiro Kon
IL-36α, a member of the IL-1 family, is a crucial mediator of inflammatory responses. We previously found that IL-36α was overexpressed in injured distal tubules (DTs); however, its pathological function remains unclear. Herein, unilateral ureter obstruction (UUO) or folic acid (FA) injection was performed in mouse kidneys to assess the role of IL-36α in kidney injury. IL-36α mRNA and protein expression significantly increased in the kidneys within 24 h after UUO. IL-36α localized to dilated DTs. IL-36α expression significantly correlated with the progression of tubulointerstitial cell infiltration and tubular epithelium cell death in UUO kidneys and with renal dysfunction in FA-induced acute kidney injury mice...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29050225/hcarg-commd5-inhibits-erbb-receptor-driven-renal-cell-carcinoma
#16
Hiroyuki Matsuda, Carole G Campion, Kyoko Fujiwara, Jin Ikeda, Suzanne Cossette, Thomas Verissimo, Maiko Ogasawara, Louis Gaboury, Kosuke Saito, Kenya Yamaguchi, Satoru Takahashi, Morito Endo, Noboru Fukuda, Masayoshi Soma, Pavel Hamet, Johanne Tremblay
Hypertension-related, calcium-regulated gene (HCaRG/COMMD5) is highly expressed in renal proximal tubules, where it contributes to the control of cell proliferation and differentiation. HCaRG accelerates tubular repair by facilitating re-differentiation of injured proximal tubular epithelial cells, thus improving mouse survival after acute kidney injury. Sustained hyper-proliferation and de-differentiation are important hallmarks of tumor progression. Here, we demonstrate that cancer cells overexpressing HCaRG maintain a more differentiated phenotype, while several of them undergo autophagic cell death...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29040214/untreated-relative-hypotension-measured-as-perfusion-pressure-deficit-during-management-of-shock-and-new-onset-acute-kidney-injury-a-literature-review
#17
Rakshit Panwar
Maintaining an optimal blood pressure (BP) during shock is a fundamental tenet of critical care. Optimal BP targets maybe different for different patients. In current practice, too often, uniform BP targets are pursued which may result in inadvertently accepting a degree of untreated relative hypotension i.e., the deficit between patients' usual pre-morbid basal BP and the achieved BP, during vasopressor support. Relative hypotension is a common but an under-recognized and an under-treated sign among patients with potential shock state...
October 16, 2017: Shock
https://www.readbyqxmd.com/read/28976282/injectable-co-gels-of-collagen-and-decellularized-vascular-matrix-improve-msc-based-therapy-for-acute-kidney-injury
#18
Shuang Huang, Yajian Li, Xinning Wang, Xin Ma, Xu Zhang
Transplantation of mesenchymal stem cells (MSCs) is promising for treatment of acute kidney injury (AKI), but their therapeutic effects are often limited under normal conditions. In this study, we prepared the co-gels of decellularized vascular matrix and collagen, and investigated whether the co-gels increase the therapeutic potentials of MSCs on AKI. In vitro studies indicated that the co-gels enhanced the paracrine effects of MSCs, and significantly reduced the apoptosis of MSCs under oxidative environments...
October 13, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/28971991/targeted-gamma-secretase-inhibition-of-notch-signaling-activation-in-acute-renal-injury
#19
Jean-Christophe Wyss, Rajesh Kumar, Josip Mikulic, Manfred Schneider, Johannes D Aebi, Lucienne Juillerat-Jeanneret, Dela Golshayan
The Notch pathway has been reported to control tissue damage in acute kidney diseases. To investigate potential beneficial nephroprotective effects of targeting Notch, we developed chemically functionalized γ-secretase inhibitors (GSIs) targeting γ-glutamyltranspeptidase (γ-GT) and/or γ-glutamylcyclotransfase (γ-GCT), two enzymes overexpressed in the injured kidney, and evaluated them in in vivo murine models of acute tubular and glomerular damage. Exposure of the animals to disease-inducing drugs together with the functionalized GSIs improved proteinuria and, to some extent, kidney dysfunction...
September 27, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28970256/heparanase-regulates-the-m1-polarization-of-renal-macrophages-and-their-crosstalk-with-renal-epithelial-tubular-cells-after-ischemia-reperfusion-injury
#20
Valentina Masola, Gianluigi Zaza, Gloria Bellin, Luigi Dall'Olmo, Simona Granata, Gisella Vischini, Maria Francesca Secchi, Antonio Lupo, Giovanni Gambaro, Maurizio Onisto
Heparanase (HPSE) is part of the biologic network triggered by ischemia/reperfusion (I/R) injury, a complication of renal transplantation and acute kidney injury. During this period, the kidney or graft undergoes a process of macrophages recruitment and activation. HPSE may therefore control these biologic effects. We measured the ability of HPSE and its inhibitor, SST0001, to regulate macrophage polarization and the crosstalk between macrophages and HK-2 renal tubular cells during in vitro hypoxia/reoxygenation (H/R)...
February 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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