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https://www.readbyqxmd.com/read/28729402/wilms-tumor-ncam-expressing-cancer-stem-cells-as-potential-therapeutic-target-for-polymeric-nanomedicine
#1
Ela Markovsky, Einav Vax, Dikla Ben-Shushan, Anat Eldar-Boock, Rachel Shukrun, Eilam Yeini, Iris Barshack, Revital Caspi, Orit Harari-Steinberg, Naomi Pode-Shakked, Benjamin Dekel, Ronit Satchi-Fainaro
Cancer stem cells (CSC) form a specific population within the tumor that has been shown to have self-renewal and differentiation properties, increased ability to migrate and form metastases, and increased resistance to chemotherapy. Consequently, even a small number of cells remaining after therapy can repopulate the tumor and cause recurrence of the disease. CSCs in Wilms tumor, a pediatric renal cancer, were previously shown to be characterized by neural cell adhesion molecule (NCAM) expression. Therefore, NCAM provides a specific biomarker through which the CSC population in this tumor can be targeted...
July 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28724608/erbb4-deletion-accelerates-renal-fibrosis-following-renal-injury
#2
Fenghua Zeng, Tomoki Miyazawa, Lance A Kloepfer, Raymond C Harris
Tubulointerstitial fibrosis (TIF) is a prominent factor in the progression of chronic kidney disease (CKD) regardless of etiology. ErbB4 expression levels were inversely correlated to renal fibrosis in human fibrotic kidneys. In both unilateral ureteral obstruction (UUO) and ischemia reperfusion injury followed by uninephrectomy (IRI/UNx) mouse models, expression levels of ErbB4 were elevated in the early stage of renal injury. Using mice with global ErbB4 deletion except for transgenic rescue in cardiac tissue (ErbB4-/-ht+), we determined that UUO induced similar injury in proximal tubules compared to wild-type mice but more severe injury in distal nephrons...
July 19, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28715949/contrast-enhanced-ultrasound-for-assessing-renal-perfusion-impairment-and-predicting-acute-kidney-injury-to-chronic-kidney-disease-progression
#3
Wei Cao, Shuang Cui, Li Yang, Chunyi Wu, Jian Liu, Fang Yang, Youhua Liu, Jianping Bin, Fan Fan Hou
AIMS: Acute kidney injury (AKI) is increasingly recognized as a major risk factor leading to progression to chronic kidney disease (CKD). However, the diagnostic tools for predicting AKI to CKD progression are particularly lacking. Here, we tested the utility of contrast enhanced ultrasound (CEUS) for predicting progression to CKD after AKI by using both mild (20-minute) and severe (45-minute) bilateral renal ischemia/reperfusion injury (IRI) mice. RESULTS: Renal perfusion measured by CEUS reduced to 25%±7% and 14%±6% of the pre-ischemic levels in mild and severe AKI 1 hour after ischemia (P<0...
July 17, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28708304/hyperpolarized-13-c-magnetic-resonance-evaluation-of-renal-ischemia-reperfusion-injury-in-a-murine-model
#4
Celine Baligand, Hecong Qin, Aisha True-Yasaki, Jeremy W Gordon, Cornelius von Morze, Justin Delos Santos, David M Wilson, Robert Raffai, Patrick M Cowley, Anthony J Baker, John Kurhanewicz, David H Lovett, Zhen Jane Wang
Acute kidney injury (AKI) is a major risk factor for the development of chronic kidney disease (CKD). Persistent oxidative stress and mitochondrial dysfunction are implicated across diverse forms of AKI and in the transition to CKD. In this study, we applied hyperpolarized (HP) (13) C dehydroascorbate (DHA) and (13) C pyruvate magnetic resonance spectroscopy (MRS) to investigate the renal redox capacity and mitochondrial pyruvate dehydrogenase (PDH) activity, respectively, in a murine model of AKI at baseline and 7 days after unilateral ischemia reperfusion injury (IRI)...
July 14, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28686805/a-generalized-ratiometric-chemical-exchange-saturation-transfer-cest-mri-approach-for-mapping-renal-ph-using-iopamidol
#5
Yin Wu, Iris Y Zhou, Takahiro Igarashi, Dario L Longo, Silvio Aime, Phillip Zhe Sun
PURPOSE: To extend the pH detection range of iopamidol-based ratiometric chemical exchange saturation transfer (CEST) MRI at sub-high magnetic field and establish quantitative renal pH MRI. METHODS: Chemical exchange saturation transfer imaging was performed on iopamidol phantoms with pH of 5.5 to 8.0 and in vivo on rat kidneys (n = 5) during iopamidol administration at a 4.7 T. Iopamidol CEST effects were described using a multipool Lorentzian model. A generalized ratiometric analysis was conducted by ratioing resolved iopamidol CEST effects at 4...
July 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28686686/protective-effect-of-zinc-preconditioning-against-renal-ischemia-reperfusion-injury-is-dose-dependent
#6
Kenny Rao, Kapil Sethi, Joseph Ischia, Luke Gibson, Laurence Galea, Lin Xiao, Mildred Yim, Mike Chang, Nathan Papa, Damien Bolton, Arthur Shulkes, Graham S Baldwin, Oneel Patel
OBJECTIVES: Ischemia-reperfusion injury (IRI) is a major cause of acute kidney injury and chronic kidney disease. Two promising preconditioning methods for the kidney, intermittent arterial clamping (IC) and treatment with the hypoxia mimetic cobalt chloride, have never been directly compared. Furthermore, the protective efficacy of the chemically related transition metal Zn2+ against renal IRI is unclear. Although Co2+ ions have been shown to protect the kidney via hypoxia inducible factor (HIF), the effect of Zn2+ ions on the induction of HIF1α, HIF2α and HIF3α has not been investigated previously...
2017: PloS One
https://www.readbyqxmd.com/read/28679671/breast-regression-protein-39-chitinase-3-like-1-promotes-renal-fibrosis-after-kidney-injury-via-activation-of-myofibroblasts
#7
Tinika A Montgomery, Leyuan Xu, Sherene Mason, Amirtha Chinnadurai, Chun Geun Lee, Jack A Elias, Lloyd G Cantley
The normal response to kidney injury includes a robust inflammatory infiltrate of PMNs and macrophages. We previously showed that the small secreted protein breast regression protein-39 (BRP-39), also known as chitinase 3-like 1 (CHI3L1) and encoded by the Chi3l1 gene, is expressed at high levels by macrophages during the early stages of kidney repair and promotes tubular cell survival via IL-13 receptor α2 (IL13Rα2)-mediated signaling. Here, we investigated the role of BRP-39 in profibrotic responses after AKI...
July 5, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28668506/interleukin-33-signaling-contributes-to-renal-fibrosis-following-ischemia-reperfusion
#8
Hua Liang, Feng Xu, Xian-Jie Wen, Hong-Zhen Liu, Han-Bing Wang, Ji-Ying Zhong, Cheng-Xiang Yang, Bin Zhang
Acute kidney injury caused by ischemia-reperfusion injury (IRI) is a major risk factor for chronic kidney disease, which is characterized by renal interstitial fibrosis. However, the molecular mechanisms underlying renal fibrosis induced by IRI are not fully understood. Our results showed that interleukin (IL)-33 was induced markedly after IRI insult, and the kidneys of mice following IRI plus IL-33 treatment presented more severe renal fibrosis compared with mice treated with IRI alone. Therefore, we investigated whether inhibition of IL-33 protects against IRI-induced renal fibrosis...
June 28, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28667925/serum-fibroblast-growth-factor-23-concentrations-in-dogs-with-chronic-kidney-disease
#9
Keren E Dittmer, Kalyani C Perera, Peter A Elder
The aim of this study was to determine if serum fibroblast growth factor (FGF23) concentrations were increased in dogs with chronic kidney disease (CKD). Serum samples submitted to a commercial laboratory were collected over a 15-month period, 14 samples were from dogs with a history of polyuria/polydipsia, azotaemia and low urine specific gravity, 20 samples were from non-azotaemic dogs. Serum FGF23, parathyroid hormone, total calcium and phosphorus, urea and creatinine were measured. Mann-Whitney test was used to determine differences between non-azotaemic and CKD groups; a one-way ANOVA with Tukey pairwise comparisons was used to determine any differences between International Renal Interest Society stages; and regression models were used to determine predictors of International Renal Interest Society stage, serum phosphorus and FGF23 concentrations...
June 23, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28661484/sorafenib-tosylate-inhibits-directly-necrosome-complex-formation-and-protects-in-mouse-models-of-inflammation-and-tissue-injury
#10
Sofie Martens, Manhyung Jeong, Wulf Tonnus, Friederike Feldmann, Sam Hofmans, Vera Goossens, Nozomi Takahashi, Jan Hinrich Bräsen, Eun-Woo Lee, Pieter Van der Veken, Jurgen Joossens, Koen Augustyns, Simone Fulda, Andreas Linkermann, Jaewhan Song, Peter Vandenabeele
Necroptosis contributes to the pathophysiology of several inflammatory, infectious and degenerative disorders. TNF-induced necroptosis involves activation of the receptor-interacting protein kinases 1 and 3 (RIPK1/3) in a necrosome complex, eventually leading to the phosphorylation and relocation of mixed lineage kinase domain like protein (MLKL). Using a high-content screening of small compounds and FDA-approved drug libraries, we identified the anti-cancer drug Sorafenib tosylate as a potent inhibitor of TNF-dependent necroptosis...
June 29, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28660066/an-n-nitrosation-reactivity-based-two-photon-fluorescent-probe-for-the-specific-in-situ-detection-of-nitric-oxide
#11
Zhiqiang Mao, Hong Jiang, Zhen Li, Cheng Zhong, Wei Zhang, Zhihong Liu
In situ fluorescence imaging of nitric oxide (NO) is a powerful tool for studying the critical roles of NO in biological events. However, the selective imaging of NO is still a challenge because most currently available fluorescent probes rely on the o-phenylenediamine (OPD) recognition site, which reacts with both NO and some abundant reactive carbonyl species (RCS) (such as dehydroascorbic acid and methylglyoxal) and some reactive oxygen/nitrogen species (ROS/RNS). To address this problem, a new fluorescent probe, NCNO, based on the N-nitrosation of aromatic secondary amine was designed to bypass the RCS, ROS, and RNS interference...
June 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28634969/diagnosis-and-assessment-of-renal-fibrosis-the-state-of-the-art
#12
Lena Berchtold, Iris Friedli, Jean-Paul Vallée, Solange Moll, Pierre-Yves Martin, Sophie de Seigneux
Chronic kidney disease (CKD) is defined as an alteration of kidney function and/or structure lasting for more than 3 months and is a major public health issue. Histologically, the severity of CKD correlates with the magnitude of kidney cortical interstitial fibrosis. Estimation of kidney fibrosis is crucial to assess prognosis and guide therapy in both native and allograft kidneys. Biopsy is currently the gold standard for assessing fibrosis with histological techniques. Although this procedure has become safer over recent years, complications and limitations remain...
June 21, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28634267/30-years-of-the-mineralocorticoid-receptor-the-role-of-the-mineralocorticoid-receptor-in-the-vasculature
#13
REVIEW
Jennifer J DuPont, Iris Z Jaffe
Since the mineralocorticoid receptor (MR) was cloned 30 years ago, it has become clear that MR is expressed in extra-renal tissues, including the cardiovascular system, where it is expressed in all cells of the vasculature. Understanding the role of MR in the vasculature has been of particular interest as clinical trials show that MR antagonism improves cardiovascular outcomes out of proportion to changes in blood pressure. The last 30 years of research have demonstrated that MR is a functional hormone-activated transcription factor in vascular smooth muscle cells and endothelial cells...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28626178/hypoglycemic-coma-induced-by-the-use-of-succinic-acid-cibenzoline-in-frail-late-stage-elderly-subjects
#14
Yurie Hirata, Shinji Kamei, Fuminori Tatsumi, Masashi Shimoda, Akihito Tanabe, Junpei Sanada, Yoshiro Fushimi, Shintaro Irie, Tomoatsu Mune, Kohei Kaku, Hideaki Kaneto
Succinic acid cibenzoline (CZ) is an antiarrhythmic agent often used for the treatment of tachyarrhythmia. However, hypoglycemia should be avoided in the treatment of diabetes. We herein report two late-stage elderly subjects who experienced a severe and prolonged hypoglycemic coma after the usage of CZ. These cases suggest that, when CZ is administered to elderly subjects with renal dysfunction and/or frailty, we should be aware of the possibility that this medicine may induce hypoglycemia and should adjust the dose as appropriate and monitor the concentration of CZ to avoid severe hypoglycemia...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28618421/identification-of-tisp40-as-an-essential-regulator-of-renal-tubulointerstitial-fibrosis-via-tgf-%C3%AE-smads-pathway
#15
Cheng-Cheng Xiao, Jie Zhang, Peng-Cheng Luo, Cong Qin, Yang Du, Jin-Zhuo Ning, Hai-Zhou Zheng
BACKGROUND: Tisp40, a transcription factor of the CREB/CREM family, is involved in cell proliferation, differentiation and other biological functions, but its role in renal tubulointerstitial fibrosis is unknown. METHODS: In our study, we investigated the effects of Tisp40 on extracellular matrix (ECM) accumulation, epithelial-mesenchymal transition (EMT) and the underlying molecular mechanisms in transforming growth factor-β (TGF-β)-stimulated TCMK-1 cells by quantitative real-time polymerase chain reaction (qPCR), Western blot analysis and immunofluorescence in vitro, and further explored the role of Tisp40 on renal fibrosis induced by ischemia-reperfusion (I/R) by qPCR, Western blot analysis, hydroxyproline analysis, Masson trichrome staining and immunohistochemistry staining in vivo...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28614691/a-trial-of-itraconazole-or-amphotericin-b-for-hiv-associated-talaromycosis
#16
RANDOMIZED CONTROLLED TRIAL
Thuy Le, Nguyen Van Kinh, Ngo T K Cuc, Nguyen L N Tung, Nguyen T Lam, Pham T T Thuy, Do D Cuong, Pham T H Phuc, Vu H Vinh, Doan T H Hanh, Vu Van Tam, Nguyen T Thanh, Tran P Thuy, Nguyen T Hang, Hoang B Long, Ho T Nhan, Heiman F L Wertheim, Laura Merson, Cecilia Shikuma, Jeremy N Day, Nguyen V V Chau, Jeremy Farrar, Guy Thwaites, Marcel Wolbers
BACKGROUND: Talaromyces marneffei infection is a major cause of human immunodeficiency virus (HIV)-related death in South and Southeast Asia. Guidelines recommend initial treatment with amphotericin B deoxycholate, but this drug has substantial side effects, a high cost, and limited availability. Itraconazole is available in oral form, is associated with fewer unacceptable side effects than amphotericin, and is widely used in place of amphotericin; however, clinical trials comparing these two treatments are lacking...
June 15, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28608403/mitochondria-targeted-antioxidant-mitoq-reduced-renal-damage-caused-by-ischemia-reperfusion-injury-in-rodent-kidneys-longitudinal-observations-of-t2-weighted-imaging-and-dynamic-contrast-enhanced-mri
#17
Xiaoge Liu, Michael P Murphy, Wei Xing, Huanhuan Wu, Rui Zhang, Haoran Sun
PURPOSE: To investigate the effect of mitochondria-targeted antioxidant MitoQ in reducing the severity of renal ischemia-reperfusion injury (IRI) in rats using T2 -weighted imaging and dynamic contrast-enhanced MRI (DCE-MRI). METHODS: Ischemia-reperfusion injury was induced by temporarily clamping the left renal artery. Rats were pretreated with MitoQ or saline. The MRI examination was performed before and after IRI (days 2, 5, 7, and 14). The T2 -weighted standardized signal intensity of the outer stripe of the outer medulla (OSOM) was measured...
June 12, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28603043/tak1-as-the-mediator-in-the-protective-effect-of-propofol-on-renal-interstitial-fibrosis-induced-by-ischemia-reperfusion-injury
#18
Huiping Wu, Jun Zhou, Weiming Ou, Yun Li, Meifang Liu, Chengxiang Yang
Ischemia-reperfusion injury (IRI), which is a major cause of acute and chronic renal dysfunction, induces both apoptosis and fibrotic processes. The mitogen-activated protein kinase kinase kinase transforming growth factor-β-activated kinase 1 (TAK1) was implicated in the processes of inflammation and fibrosis. The protective effect of propofol on renal functionality after acute kidney injury (AKI) in mice has been identified, whereas the mechanisms underlying fibrosis induced by kidney injury remain obscure...
June 8, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28587616/a-double-blind-randomised-controlled-investigation-into-the-efficacy-of-mirococept-apt070-for-preventing-ischaemia-reperfusion-injury-in-the-kidney-allograft-empirikal-study-protocol-for-a-randomised-controlled-trial
#19
Theodoros Kassimatis, Anass Qasem, Abdel Douiri, Elizabeth G Ryan, Irene Rebollo-Mesa, Laura L Nichols, Roseanna Greenlaw, Jonathon Olsburgh, Richard A Smith, Steven H Sacks, Martin Drage
BACKGROUND: Delayed graft function (DGF) is traditionally defined as the requirement for dialysis during the first week after transplantation. DGF is a common complication of renal transplantation, and it negatively affects short- and long-term graft outcomes. Ischaemia reperfusion injury (IRI) is a prime contributor to the development of DGF. It is well established that complement system activation plays a pivotal role in the pathogenesis of IRI. Mirococept is a highly effective complement inhibitor that can be administered ex vivo to the donor kidney just before transplantation...
June 6, 2017: Trials
https://www.readbyqxmd.com/read/28586635/tin-protoporphyrin-activates-the-oxidant-dependent-nrf2-cytoprotective-pathway-and-mitigates-acute-kidney-injury
#20
Ali C M Johnson, Jeff J Delrow, Richard A Zager
Tin protoporphyrin (SnPP), a heme oxygenase (HO) inhibitor, can paradoxically protect against diverse forms of acute kidney injury (AKI). This study sought potential underlying mechanisms. CD-1 mice received intravenous SnPP, followed 4-18 hours later by a variety of renal biochemical, histologic, and genomic assessments. Renal resistance to ischemic-reperfusion injury (IRI) was also sought. SnPP was rapidly taken up by kidney and was confined to proximal tubules. Transient suppression of renal heme synthesis (decreased δ aminolevulinic acid synthase expression), a 2...
May 19, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
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