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https://www.readbyqxmd.com/read/29114949/protective-effect-of-gdnf-engineered-amniotic-fluid-derived-stem-cells-on-the-renal-ischaemia-reperfusion-injury-in-vitro
#1
Jia Wang, Fengzhen Wang, Zhuojun Wang, Shulin Li, Lu Chen, Caixia Liu, Dong Sun
OBJECTIVES: Amniotic fluid-derived stem cells (AFSCs) possessing multilineage differentiation potential are proposed as a novel and accessible source for cell-based therapy and tissue regeneration. Glial-derived neurotrophic factor (GDNF) has been hypothesized to promote the therapeutic effect of AFSCs on markedly ameliorating renal dysfunction. The aim of this study was to investigate whether AFSCs equipped with GDNF (GDNF-AFSCs) had capabilities of attenuating mouse renal tubular epithelial cells (mRTECs) apoptosis and evaluate its potential mechanisms...
November 7, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29083099/therapeutic-application-of-extracellular-vesicles-in-kidney-disease-promises-and-challenges
#2
REVIEW
Lin-Li Lv, Wei-Jun Wu, Ye Feng, Zuo-Lin Li, Tao-Tao Tang, Bi-Cheng Liu
Extracellular vesicles (EVs) are nanosized, membrane-bound vesicles released from different cells. Recent studies have revealed that EVs may participate in renal tissue damage and regeneration through mediating inter-nephron communication. Thus, the potential use of EVs as therapeutic vector has gained considerable interest. In this review, we will discuss the basic characteristics of EVs and its role in nephron cellular communication. Then, the application of EVs as therapeutic vector based on its natural content or as carriers of drug, in acute and chronic kidney injury, was discussed...
October 30, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29054964/gene-expression-profiling-of-the-notch-ahr-il22-axis-at-homeostasis-and-in-response-to-tissue-injury
#3
Marc Weidenbusch, Severin Rodler, Shangqing Song, Simone Romoli, Julian A Marschner, Franziska Kraft, Alexander Holderied, Santosh Kumar, Shrikant R Mulay, Mohsen Honarpisheh, Satish Kumar Devarapu, Maciej Lech, Hans-Joachim Anders
Notch and Interleukin-22 signaling are known to regulate tissue homeostasis and response to injury in humans and mice, and the induction of endogenous arylhydrocarbon receptor ligands through Notch links the two pathways in a hierarchical fashion. However, in adults the species-, organ- and injury-specific gene expression of the Notch-AhR-IL22 axis components is unknown. We therefore performed gene expression profiling of DLL1, DLL3, DLL4, DLK1, DLK2, JAG1, JAG2, Notch1, Notch2, Notch3, Notch4, ADAM17/TACE, PSEN1, BSG/CD147, RBP-J, HES1, HES5, HEY1, HEYL, AHR, ARNT, ARNT2, CYP1A1, CYP24A1, IL22, IL22RA1, IL22RA2, IL10RB, and STAT3 under homeostatic conditions in 10 mature murine and human organs...
October 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29050313/adipose-derived-mesenchymal-stem-cells-employed-exosomes-to-attenuate-aki-ckd-transition-through-tubular-epithelial-cell-dependent-sox9-activation
#4
Fengming Zhu, Octavia L S Chong Lee Shin, Guangchang Pei, Zhizhi Hu, Juan Yang, Han Zhu, Meng Wang, Jingyi Mou, Jie Sun, Yuxi Wang, Qian Yang, Zhi Zhao, Huzi Xu, Hui Gao, Weiqi Yao, Xiao Luo, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Acute kidney injury (AKI) predisposes patients to an increased risk into progressive chronic kidney disease (CKD), however effective treatments are still elusive. This study aimed to investigate the therapeutic efficacy of human adipose-derived MSCs (hAD-MSCs) in the prevention of AKI-CKD transition, and illuminate the role of Sox9, a vital transcription factor in the development of kidney, in this process. C57BL/6 mice were subjected to unilateral renal ischemia/reperfusion (I/R) with or without hAD-MSC treatment...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29047363/thymosin-%C3%AE-4-alleviates-renal-fibrosis-and-tubular-cell-apoptosis-through-tgf-%C3%AE-pathway-inhibition-in-uuo-rat-models
#5
Jing Yuan, Yan Shen, Xia Yang, Ying Xie, Xin Lin, Wen Zeng, Yingting Zhao, Maolu Tian, Yan Zha
BACKGROUND: Thymosin β4 (Tβ4) is closely associated with the cytoskeleton, inflammation, wound healing, angiogenesis, apoptosis, and myocardial regeneration, but the effects of Tβ4 treatment on chronic renal tubular interstitial fibrosis (CRTIF) are poorly known. This study aimed to examine the effects of Tβ4 on the renal apoptosis and the expression of transforming growth factor (TGF-β), E-cadherin, and α-smooth muscle actin (α-SMA) in CRTIF rat models. METHODS: Male SD rats were randomized into four groups (sham group, unilateral ureteral obstruction (UUO) group, UUO + low-dose Tβ4 group, and UUO + high-dose Tβ4 group)...
October 18, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29046731/promoter-methylation-inhibits-expression-of-tumor-suppressor-kibra-in-human-clear-cell-renal-cell-carcinoma
#6
Katrin Schelleckes, Boris Schmitz, Giuliano Ciarimboli, Malte Lenders, Hermann J Pavenstädt, Edwin Herrmann, Stefan-Martin Brand, Eva Brand
BACKGROUND: KIBRA has been suggested as a key regulator of the Hippo signaling pathway, regulating organ size, cell contact inhibition, tissue regeneration as well as tumorigenesis and cystogenesis. We recently reported that human KIBRA expression depends on a complex alternative CpG-rich promoter system. Our current study aimed at the identification of epigenetic mechanisms associated with alterations in KIBRA expression regulation. RESULTS: We identified two separated methylation-sensitive CpG islands located to independent KIBRA promoter regions...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/29042548/human-mesenchymal-stromal-cells-transplanted-into-mice-stimulate-renal-tubular-cells-and-enhance-mitochondrial-function
#7
Luca Perico, Marina Morigi, Cinzia Rota, Matteo Breno, Caterina Mele, Marina Noris, Martino Introna, Chiara Capelli, Lorena Longaretti, Daniela Rottoli, Sara Conti, Daniela Corna, Giuseppe Remuzzi, Ariela Benigni
Mesenchymal stromal cells (MSCs) are renoprotective and drive regeneration following injury, although cellular targets of such an effect are still ill-defined. Here, we show that human umbilical cord (UC)-MSCs transplanted into mice stimulate tubular cells to regain mitochondrial mass and function, associated with enhanced microtubule-rich projections that appear to mediate mitochondrial trafficking to create a reparative dialogue among adjacent tubular cells. Treatment with UC-MSCs in mice with cisplatin-induced acute kidney injury (AKI) regulates mitochondrial biogenesis in proximal tubuli by enhancing PGC1α expression, NAD(+) biosynthesis and Sirtuin 3 (SIRT3) activity, thus fostering antioxidant defenses and ATP production...
October 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28993191/the-anti-aging-protein-klotho-is-induced-by-gaba-therapy-and-exerts-protective-and-stimulatory-effects-on-pancreatic-beta-cells
#8
Gérald J Prud'homme, Yelena Glinka, Merve Kurt, Wenjuan Liu, Qinghua Wang
Systemic gamma-aminobutyric acid (GABA) therapy prevents or ameliorates type 1 diabetes (T1D), by suppressing autoimmune responses and stimulating pancreatic beta cells. In beta cells, it increases insulin secretion, prevents apoptosis, and induces regeneration. It is unclear how GABA mediates these effects. We hypothesized that Klotho is involved. It is a multi-functional protein expressed in the kidneys, brain, pancreatic beta cells, other tissues, and is cell-bound or soluble. Klotho knockout mice display accelerated aging, and in humans Klotho circulating levels decline with age, renal disease and diabetes...
December 2, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28985199/renal-lineage-cells-as-a-source-for-renal-regeneration
#9
REVIEW
Oren Pleniceanu, Dorit Omer, Orit Harari-Steinberg, Benjamin Dekel
The mammalian kidney is a highly complex organ, composed of various cell types within a unique structural framework. Nonetheless, in recent years, giant leaps in our understanding of nephrogenesis and the origin of new cells in the adult kidney, have resulted in novel routes to regenerate damaged nephrons. While several strategies can be envisioned to achieve this aim, one common theme is the reliance on renal lineage cells, since extra-renal cells, such as bone-marrow derived cells, have been shown to be devoid of renal differentiation capacity...
October 6, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28959634/safety-assessment-of-freeze-dried-powdered-cassiae-semen-evaluation-of-chronic-toxicity-26-week-in-sprague-dawley-rats
#10
Yanyu Pei, Ruoyao Wei, Jingjiang Sun, Hong Gao
There is a lack of safety assessment data regarding the long-term consumption of Cassiae Semen (Leguminosae, the seeds of Cassia obtusifolia L. and Cassia tora L.). Thus, we evaluated the toxicity of freeze-dried powdered Cassiae Semen in male and female Sprague-Dawley rats. Rats were intragastrically administered freeze-dried powdered Cassiae Semen at a dose of 0.5, 2.2, or 10.0 g/kg body weight/day for 26 weeks; several variables were assessed after 13 and 26 weeks as well as after a 4-week recovery period...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/28948892/clinical-protocol-levels-are-required-in-laboratory-animal-surgery-when-using-medical-devices-experiences-with-ureteral-replacement-surgery-in-goats
#11
Paul K J D de Jonge, Marije Sloff, Heinz P Janke, Barbara B M Kortmann, Robert P E de Gier, Paul J Geutjes, Egbert Oosterwijk, Wout F J Feitz
It is common to test medical devices in large animal studies that are or could also be used in humans. In this short report we describe the use of a ureteral J-stent for the evaluation of biodegradable tubular constructs for tissue reconstruction, and the regeneration of ureters in Saanen goats. Similarly to a previous study in pigs, the ureteral J-stent was blindly inserted until some resistance was met. During evaluation of the goats after three months, perforation of the renal cortex by the stent was observed in four out of seven animals...
October 2017: Laboratory Animals
https://www.readbyqxmd.com/read/28922990/streamlined-system-for-conducting-in-vitro-studies-using-decellularized-kidney-scaffolds
#12
Andrew Reyes Padalhin, Chanmi Park, Byong-Taek Lee
Kidney regeneration is a complex process that can only be studied in vitro at a limited capacity due to the inherent structural and functional complexity of its tissues. Thus, a suitable platform for conducting cellular response and development should be established from decellularized tissues with intact microarchitecture. In this study, a modular streamlined system was developed to allow manageable handling and set-up of in vitro studies using decellularized rat kidneys. The system is composed of commercially available parts that can be reused, interchanged, and re-configured based on the desired experimental stage and process...
September 19, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28831294/ameliorative-effect-of-daidzein-on-cisplatin-induced-nephrotoxicity-in-mice-via-modulation-of-inflammation-oxidative-stress-and-cell-death
#13
Hongzhou Meng, Guanghou Fu, Jie Shen, Kezhen Shen, Zhijie Xu, Yiming Wang, Baiye Jin, Hao Pan
Oxidative stress and inflammation are part and parcel of cisplatin-induced nephrotoxicity. The purpose of this work is to study the role of soy isoflavone constituent, daidzein, in cisplatin-induced renal damage. Cisplatin-induced nephrotoxicity was evident by the histological damage in proximal tubular cells and by the increase in serum neutrophil gelatinase-associated lipocalin (NGAL), blood urea nitrogen (BUN), creatinine, and urinary kidney injury molecule-1 (KIM-1). Cisplatin-induced cell death was shown by TUNEL staining and caspase-3/7 activity...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28811645/inhibin-a-and-decorin-secreted-by-human-adult-renal-stem-progenitor-cells-through-the-tlr2-engagement-induce-renal-tubular-cell-regeneration
#14
Fabio Sallustio, Claudia Curci, Alessandra Aloisi, Chiara Cristina Toma, Elisabetta Marulli, Grazia Serino, Sharon Natasha Cox, Giuseppe De Palma, Alessandra Stasi, Chiara Divella, Rosaria Rinaldi, Francesco Paolo Schena
Acute kidney injury (AKI) is a public health problem worldwide. Several therapeutic strategies have been made to accelerate recovery and improve renal survival. Recent studies have shown that human adult renal progenitor cells (ARPCs) participate in kidney repair processes, and may be used as a possible treatment to promote regeneration in acute kidney injury. Here, we show that human tubular ARPCs (tARPCs) protect physically injured or chemically damaged renal proximal tubular epithelial cells (RPTECs) by preventing cisplatin-induced apoptosis and enhancing proliferation of survived cells...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28736435/extracellular-vesicles-in-renal-disease
#15
REVIEW
Diana Karpman, Anne-Lie Ståhl, Ida Arvidsson
Extracellular vesicles, such as exosomes and microvesicles, are host cell-derived packages of information that allow cell-cell communication and enable cells to rid themselves of unwanted substances. The release and uptake of extracellular vesicles has important physiological functions and may also contribute to the development and propagation of inflammatory, vascular, malignant, infectious and neurodegenerative diseases. This Review describes the different types of extracellular vesicles, how they are detected and the mechanisms by which they communicate with cells and transfer information...
September 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28735502/regenerative-medicine-in-kidney-disease-where-we-stand-and-where-to-go
#16
REVIEW
Fernanda T Borges, Nestor Schor
The kidney is a complex organ with more than 20 types of specialized cells that play an important role in maintaining the body's homeostasis. The epithelial tubular cell is formed during embryonic development and has little proliferative capacity under physiological conditions, but after acute injury the kidney does have regenerative capacity. However, after repetitive or severe lesions, it may undergo a maladaptation process that predisposes it to chronic kidney injury. Regenerative medicine includes various repair and regeneration techniques, and these have gained increasing attention in the scientific literature...
July 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28714420/evaluation-of-temporal-changes-in-urine-based-metabolomic-and-kidney-injury-markers-to-detect-compound-induced-acute-kidney-tubular-toxicity-in-beagle-dogs
#17
M P Wagoner, Y Yang, J E McDuffie, M Klapczynski, W Buck, L Cheatham, D Eisinger, F Sace, K M Lynch, M Sonee, J-Y Ma, Y Chen, K Marshall, M Damour, L Stephen, Y P Dragan, J Fikes, S Snook, L B Kinter
Urinary protein biomarkers and metabolomic markers have been leveraged to detect acute Drug Induced Kidney Injury (DIKI) in rats; however, the utility of these indicators to enable early detection of DIKI in canine models has not been well documented. Therefore, we evaluated temporal changes in biomarkers and metabolites in urine from male and female beagle dogs. Gentamicin- induced kidney lesions in male dogs were characterized by moderate to severe tubular epithelial cell degeneration/necrosis, epithelial cell regeneration and dilation; and a unique urinebased metabolomic fingerprint...
2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28699526/hydrogel-based-cell-therapies-for-kidney-regeneration-current-trends-in-biofabrication-and-in-vivo-repair
#18
Katja Jansen, Carl C L Schuurmans, Jitske Jansen, Rosalinde Masereeuw, Tina Vermonden
Facing the problems of limited renal regeneration capacity and the persistent shortage of donor kidneys, dialysis remains the only treatment option for many end-stage renal disease patients. Unfortunately, dialysis is only a medium-term solution because large and protein-bound uremic solutes are not efficiently cleared from the body and lead to disease progression over time. Current strategies for improved renal replacement therapies (RRTs) range from whole organ engineering to biofabrication of renal assist devices and biological injectables for in vivo regeneration...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28688581/persistent-and-inducible-neogenesis-repopulates-progenitor-renin-lineage-cells-in-the-kidney
#19
Linda Hickmann, Anne Steglich, Michael Gerlach, Moath Al-Mekhlafi, Jan Sradnick, Peter Lachmann, Maria Luisa S Sequeira-Lopez, R Ariel Gomez, Bernd Hohenstein, Christian Hugo, Vladimir T Todorov
Renin lineage cells (RLCs) serve as a progenitor cell reservoir during nephrogenesis and after renal injury. The maintenance mechanisms of the RLC pool are still poorly understood. Since RLCs were also identified as a progenitor cell population in bone marrow we first considered that these may be their source in the kidney. However, transplantation experiments in adult mice demonstrated that bone marrow-derived cells do not give rise to RLCs in the kidney indicating their non-hematopoietic origin. Therefore we tested whether RLCs develop in the kidney through neogenesis (de novo differentiation) from cells that have never expressed renin before...
July 6, 2017: Kidney International
https://www.readbyqxmd.com/read/28620747/amniotic-fluid-cells-current-progress-and-emerging-challenges-in-renal-regeneration
#20
REVIEW
Stefano Da Sacco, Laura Perin, Sargis Sedrakyan
Amniotic fluid (AF) contains a heterogeneous population of cells that have been identified to possess pluripotent and progenitor-like characteristics. These cells have been applied in various regenerative medicine applications ranging from in vitro cell differentiation to tissue engineering to cellular therapies for different organs including the heart, the liver, the lung, and the kidneys. In this review, we examine the different methodologies used for the derivation of amniotic fluid stem cells and renal progenitors, and their application in renal repair and regeneration...
June 15, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
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