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https://www.readbyqxmd.com/read/28094206/hepatocyte-growth-factor-in-physiology-and-infectious-diseases
#1
REVIEW
Ryu Imamura, Kunio Matsumoto
Hepatocyte growth factor (HGF) is a pleiotropic cytokine composed of an α-chain and a β-chain, and these chains contain four kringle domains and a serine protease-like structure, respectively. The receptor for HGF was identified as the c-met proto-oncogene product of transmembrane receptor tyrosine kinase. HGF-induced signaling through the receptor Met provokes dynamic biological responses that support morphogenesis, regeneration, and the survival of various cells and tissues, which includes hepatocytes, renal tubular cells, and neurons...
January 13, 2017: Cytokine
https://www.readbyqxmd.com/read/28089754/stem-cell-therapy-an-emerging-modality-in-glomerular-diseases
#2
REVIEW
Umang G Thakkar, Aruna V Vanikar, Hargovind L Trivedi
The kidney has been considered a highly terminally differentiated organ with low proliferative potential and thus unlikely to undergo regeneration. Glomerular disease progresses to end-stage renal disease (ESRD), which requires dialysis or renal transplantation for better quality of life for patients with ESRD. Because of the shortage of implantable kidneys and complications such as immune rejection, septicemia and toxicity of immunosuppression, kidney transplantation remains a challenge. Therapeutic options available for glomerular disease include symptomatic treatment and strategies to delay progression...
January 12, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28070858/exosome-and-microvesicle-enriched-fractions-isolated-from-mesenchymal-stem-cells-by-gradient-separation-showed-different-molecular-signatures-and-functions-on-renal-tubular-epithelial-cells
#3
Federica Collino, Margherita Pomatto, Stefania Bruno, Rafael Soares Lindoso, Marta Tapparo, Wen Sicheng, Peter Quesenberry, Giovanni Camussi
Several studies have suggested that extracellular vesicles (EVs) released from mesenchymal stem cells (MSCs) may mediate MSC paracrine action on kidney regeneration. This activity has been, at least in part, ascribed to the transfer of proteins/transcription factors and different RNA species. Information on the RNA/protein content of different MSC EV subpopulations and the correlation with their biological activity is currently incomplete. The aim of this study was to evaluate the molecular composition and the functional properties on renal target cells of MSC EV sub-populations separated by gradient floatation...
January 9, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28063905/trichloroethylene-induced-formic-aciduria-in-the-male-c57-bl-6-mouse
#4
Edward A Lock, Paul Keane, Philip H Rowe, John R Foster, Daniel Antoine, Christopher M Morris
1, 1, 2-Trichloroethylene (TCE) is of environmental concern, due to evaporation while handling, chemical processing and leakage from chemical waste sites, leading to its contamination of ground water and air. For several decades there has been issues about possible long term health effects of TCE but recently the International Agency for Research on Cancer (IARC) and the US Environmental Protection Agency classified TCE as a human carcinogen. Links having been established between occupational exposures and kidney cancer and possible links to non-Hodgkin lymphoma and liver cancer, but there is more still more to learn...
January 4, 2017: Toxicology
https://www.readbyqxmd.com/read/28029153/cellular-senescence-in-renal-ageing-and-disease
#5
REVIEW
Ines Sturmlechner, Matej Durik, Cynthia J Sieben, Darren J Baker, Jan M van Deursen
The senescence programme is implicated in diverse biological processes, including embryogenesis, tissue regeneration and repair, tumorigenesis, and ageing. Although in vivo studies of senescence are in their infancy, evidence suggesting that senescent cells are a heterogeneous cell type is accumulating: senescence can be induced by different stressors, and senescent cells have varying degrees of genomic and epigenomic instability and different cell origins, contributing to their diversity. Two main classes of senescent cells have been identified: acute and chronic senescent cells...
February 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28011955/the-protective-effects-of-zinc-in-experimental-gentamicin-induced-acute-renal-failure-in-rats
#6
O Teslariu, A S Pasca, L Mititelu-Tartau, C E Schiriac, C Gales, P M Saftencu, M Nechifor
This study investigates the effects of zinc in acute kidney injury induced by gentamicin (Ge). We used Wistar male rats distributed in 4 groups of 12 animals each, treated intraperitoneally as follows: Group I (Control) treated with distilled water; Group II (Ge) with experimental induced acute renal failure with Ge; Group III (Ge + Zn) administration of ZnCl2 in animals with experimental induced renal failure with Ge, Group IV (Zn) treated with ZnCl2 as positive control. We measured serum levels of urea, creatinine, total antioxidant status, superoxide dismutase, glutathione peroxidase and urinary proteins before the nephrotoxicity induction (baseline) and 3, 7 and 10 days after Ge administration...
October 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/27994852/macrophage-in-chronic-kidney-disease
#7
REVIEW
Roser Guiteras, Maria Flaquer, Josep M Cruzado
Chronic kidney disease (CKD) has become a major health problem worldwide. This review describes the role of macrophages in CKD and highlights the importance of anti-inflammatory M2 macrophage activation in both renal fibrosis and wound healing processes. Furthermore, the mechanisms by which M2 macrophages induce renal repair and regeneration are still under debate and currently demand more attention. The M1/M2 macrophage balance is related to the renal microenvironment and could influence CKD progression. In fact, an inflammatory renal environment and M2 plasticity can be the major hurdles to establishing macrophage cell-based therapies in CKD...
December 2016: Clinical Kidney Journal
https://www.readbyqxmd.com/read/27984075/moderate-aerobic-exercise-on-the-recovery-phase-of-gentamicin-induced-acute-kidney-injury-in-rats
#8
C S Oliveira, A M Rodrigues, G B Nogueira, M A Nascimento, G R Punaro, E M S Higa
INTRODUCTION: Acute kidney injury is a serious public health problem, especially in intensive care units, where patients may require dialysis support, resulting in 50% mortality. AIM: To evaluate the effects of moderate aerobic exercise on the recovery phase of acute kidney injury induced by gentamicin in rats. MAIN METHODS: Male adult Wistar rats were allocated into 4 groups: W10+R30, G10+R30, W10+EX30 and G10+EX30; W10 received water (gentamicin vehicle) and G10 received gentamicin for 10days; R30 remained resting and EX30 made exercise for 30days after gentamicin suspension...
October 29, 2016: Life Sciences
https://www.readbyqxmd.com/read/27928463/renal-progenitors-roles-in-kidney-disease-and-regeneration
#9
REVIEW
Brooke E Chambers, Rebecca A Wingert
Kidney disease is a devastating condition that affects millions of people worldwide, and its prevalence is predicted to significantly increase. The kidney is a complex organ encompassing many diverse cell types organized in a elaborate tissue architecture, making regeneration a challenging feat. In recent years, there has been a surge in the field of stem cell research to develop regenerative therapies for various organ systems. Here, we review some recent progressions in characterizing the role of renal progenitors in development, regeneration, and kidney disease in mammals...
November 26, 2016: World Journal of Stem Cells
https://www.readbyqxmd.com/read/27921041/signaling-crosstalk-between-tubular-epithelial-cells-and-interstitial-fibroblasts-after-kidney-injury
#10
REVIEW
Roderick J Tan, Dong Zhou, Youhua Liu
BACKGROUND: A wide variety of kidney diseases ultimately lead to tubulointerstitial damage. The initial site of injury is usually the renal tubules, with activation of fibroblasts occurring later. Self-limited disease is characterized by transient cellular activation with timed deactivation and ultimately a return to normal functioning, whereas sustained responses characterize chronic disease and the development of irreversible fibrosis. The underlying molecular and cellular mechanisms of this cascade of events remain an area of active research...
October 2016: Kidney Diseases
https://www.readbyqxmd.com/read/27914126/effects-of-platelet-rich-plasma-on-kidney-regeneration-in-gentamicin-induced-nephrotoxicity
#11
Abbas Moghadam, Tahereh Talaei Khozani, Afsaneh Mafi, Mohammad Reza Namavar, Farzaneh Dehghani
Platelet-rich plasma (PRP) as a source of growth factors may induce tissue repairing and improve fibrosis. This study aimed to assess the effects of PRP on kidney regeneration and fibrosis in gentamicin (GM)-induced nephrotoxicity rat model by stereological study. Thirty-two male rats were selected. Nephrotoxicity was induced in animals by administration of GM (80 mg/kg/daily, intraperitoneally [IP], 8 day) and animals were treated by PRP (100 μL, intra-cortical injection using surgical microscopy, single dose)...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27871857/bmi-1-plays-a-critical-role-in-the-protection-from-acute-tubular-necrosis-by-mobilizing-renal-stem-progenitor-cells
#12
Xianhui Lv, Zhenzhen Yu, Chunfeng Xie, Xiuliang Dai, Qing Li, Dengshun Miao, Jianliang Jin
The regeneration of injured tubular cell occurs primarily from intrinsic renal stem/progenitor cells (RSCs) labeled with CD24 and CD133 after acute tubular necrosis (ATN). Bmi-1 plays a crucial role in regulating self-renewal, differentiation and aging of multiple adult stem cells and progenitor cells. Bmi-1 was rapidly elevated in the induction of adult kidney regeneration by renal injury. To determine whether Bmi-1 maintained mobilization of RSCs in the protection from ATN, glycerol-rhabdomyolysis-induced ATN were performed in wild type (WT) and Bmi-1-deficient (Bmi-1(-/-)) mice...
January 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27871849/cd44-fucosylation-on-mesenchymal-stem-cell-enhances-homing-and-macrophage-polarization-in-ischemic-kidney-injury
#13
Kang-Ju Chou, Po-Tsang Lee, Chien-Liang Chen, Chih-Yang Hsu, Wei-Chieh Huang, Chien-Wei Huang, Hua-Chang Fang
The lack of homing ability possibly reduces the healing potential of bone-marrow-derived mesenchymal stem cells (MSCs). Therefore, transforming native CD44 on MSCs into a hematopoietic cell E-/L-selectin ligand (HCELL) that possesses potent E-selectin affinity might enhance the homing and regenerative abilities of MSCs. Through fucosyltransferase VI (FTVI) transfection, MSCs were fucosylated on N-glycans of CD44 to become HCELL positive, thus interacting with E-selectin on injured endothelial cells. HCELL expression facilitated MSC homing in kidneys within 24h after injury and reduced lung stasis...
January 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/27864544/investigative-nonclinical-cardiovascular-safety-and-toxicology-studies-with-bms-986094-an-ns5b-rna-dependent-rna-polymerase-inhibitor
#14
M Gill, K Horn, J Hennan, R White, D Bounous, S Clark, J R Megill, E Janovitz, M Davies, T Sanderson, M Graziano
BMS-986094, a 2'-C-methylguanosine prodrug that was in development for treatment of chronic hepatitis C infection was withdrawn from Phase 2 clinical trials because of unexpected cardiac and renal adverse events. Investigative nonclinical studies were conducted to extend the understanding of these findings using more comprehensive endpoints. BMS-986094 was given orally to female CD-1 mice (25 and 150 mg/kg/d) for 2 weeks (53/group) and to cynomolgus monkeys (15 and 30 mg/kg/d) for up to 6 weeks (2-3/sex/group for cardiovascular safety, and 5/sex/group for toxicology)...
November 17, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/27830012/human-mesenchymal-stromal-cell-derived-extracellular-vesicles-alleviate-renal-ischemic-reperfusion-injury-and-enhance-angiogenesis-in-rats
#15
Xiangyu Zou, Di Gu, Xiaoyu Xing, Zhongliang Cheng, Dongliang Gong, Guangyuan Zhang, Yingjian Zhu
BACKGROUND: Mesenchymal stromal cells (MSCs) derived extracellular vesicles (EVs) were regarded as a potent medium for kidney injury repair and angiogenesis were regarded as an important step in tissue regeneration. However, the pro-angiogenesis effect of MSC-EVs in ischemia-reperfusion induced kidney injury and its potential mechanisms have yet to be determined. METHODS: EVs were isolated from the medium of human umbilical cord-derived MSCs (huMSCs) were injected in rats intravenously after unilateral kidney ischemia...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27802442/urinary-periostin-excretion-predicts-renal-outcome-in-iga-nephropathy
#16
Jin Ho Hwang, Jung Pyo Lee, Clara Tammy Kim, Seung Hee Yang, Jin Hyuk Kim, Jung Nam An, Kyung Chul Moon, Hajeong Lee, Yun Kyu Oh, Kwon Wook Joo, Dong Ki Kim, Yon Su Kim, Chun Soo Lim
BACKGROUND: Periostin is a matricellular protein and plays a vital role in tissue regeneration, fibrosis and wound healing. However, data about its significance in nephrology are limited. We investigated the correlation between urinary periostin excretion and its clinical significance including renal histologic findings and prognosis in IgA nephropathy (IgAN). METHODS: Of 399 patients from a glomerulonephritis cohort recruited between January 2009 and December 2014, 314 were enrolled...
2016: American Journal of Nephrology
https://www.readbyqxmd.com/read/27801972/development-of-a-chitosan-based-tissue-engineered-renal-proximal-tubule-conduit
#17
I-Ni Chiang, Wan-Chen Huang, Chao-Yuan Huang, Yeong-Shiau Pu, Tai-Horng Young
Renal proximal tubule cells (RPTCs) are responsible for glomerular filtration and maintenance of water/electrolyte balance. To regenerate a proximal tubule, sufficient cell numbers and normal cell function are requisite. Collagen has been routinely used as a substrate for culturing human RPTCs (HRPTCs); however, the role of biomaterials has not been thoroughly explored. In this study, RPTCs retrieved from human nephrectomy/nephroureterectomy specimens were cultivated on chitosan as a substrate in serum-free condition for up to 150 days...
November 1, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/27798166/mtor-signaling-regulates-protective-activity-of-transferred-cd4-foxp3-t-cells-in-repair-of-acute-kidney-injury
#18
Guochun Chen, Zheng Dong, Hong Liu, Yu Liu, Shaobin Duan, Yinghong Liu, Fuyou Liu, Huihui Chen
CD4(+)Foxp3(+) regulatory T cells (Tregs) are required for normal immune homeostasis. Recent studies suggested that Treg transfer facilitates recovery from acute kidney injury (AKI), but the molecular events that maintain Treg function after adoptive transfer remain unclear. This study aimed to investigate the regulation of mammalian target of rapamycin (mTOR) signaling in the Treg-mediated therapeutic effect on ischemic AKI. We noted significant Treg expansion in C57BL/6 mouse kidney, with enhanced immunosuppressive capacity after renal ischemia/reperfusion...
October 19, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27795549/nanomedicines-for-renal-disease-current-status-and-future-applications
#19
REVIEW
Nazila Kamaly, John C He, Dennis A Ausiello, Omid C Farokhzad
Treatment and management of kidney disease currently presents an enormous global burden, and the application of nanotechnology principles to renal disease therapy, although still at an early stage, has profound transformative potential. The increasing translation of nanomedicines to the clinic, alongside research efforts in tissue regeneration and organ-on-a-chip investigations, are likely to provide novel solutions to treat kidney diseases. Our understanding of renal anatomy and of how the biological and physico-chemical properties of nanomedicines (the combination of a nanocarrier and a drug) influence their interactions with renal tissues has improved dramatically...
December 2016: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/27781940/mesenchymal-stem-cells-in-renal-ischemia-reperfusion-injury-biological-and-therapeutic-perspectives
#20
Honglin Hu, Cong Zou
Acute renal failure (ARF) is a syndrome of abrupt decline in renal function induced by a number of different insults. In clinic, the common etiology for ARF is ischemia-reperfusion injury (IRI). The pathophysiological process of renal IRI is complex, there is no good treatment. Stem cell therapy is a new and promising treatment for renal IRI. Mesenchymal stem cells (MSCs) have the ability to differentiate into tissues of mesodermal lineages. MSCs are under intensive study as potential therapeutic strategy for renal IRI...
October 24, 2016: Current Stem Cell Research & Therapy
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