Ex Vivo Expanded 3D Human Kidney Spheres Engraft Long Term and Repair Chronic Renal Injury in Mice

Publication date: 21 January 2020Source: Cell Reports, Volume 30, Issue 3Author(s): Orit Harari-Steinberg, Dorit Omer, Yehudit Gnatek, Oren Pleniceanu, Sanja Goldberg, Osnat Cohen-Zontag, Sara Pri-Chen, Itamar Kanter, Nissim Ben Haim, Eli Becker, Roi Ankawa, Yaron Fuchs, Tomer Kalisky, Zohar Dotan, Benjamin DekelSummaryEnd-stage renal disease is a worldwide epidemic requiring renal replacement therapy. Harvesting tissue from failing kidneys and autotransplantation of tissue progenitors could theoretically delay the need for dialysis. Here we use healthy and end-stage human adult kidneys to robustly expand proliferative kidney epithelial cells and establish 3D kidney epithelial cultures termed “nephrospheres.” Formation of nephrospheres reestablishes renal identity and function in primary cultures. Transplantation into NOD/SCID mice shows that nephrospheres restore self-organogenetic properties lost in monolayer cultures, allowing long-term engraftment as tubular structures, potentially adding nephron segments and demonstrating self-organization as critical to survival. Furthermore, long-term tubular engraftment of nephrospheres is functionally beneficial in murine models of chronic kidney disease. Remarkably, nephrospheres inhibit pro-fibrotic collagen production in cultured fibroblasts via paracrine modulation, while transplanted nephrospheres induce transcriptional signatures of proliferation and release from quiescence, suggesting re-activation of endogenous re...
Source: Cell Reports - Category: Cytology Source Type: research

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Authors: Musio F Abstract INTRODUCTION: Anemia has and will continue to be a central theme in medicine particularly as clinicians are treating a burgeoning population of complex multi-organ system processes. As a result of multiple randomized controlled trials (RCTs), meta-analyses, and societal recommendations overly restrictive paradigms and under-administration of erythropoiesis stimulating agents (ESAs) have likely been followed by clinicians among all specialties. AREAS COVERED: A review of anemia in the context of chronic kidney disease, hematologic malignancies and cancer is presented with focus on the e...
Source: Expert Review of Hematology - Category: Hematology Tags: Expert Rev Hematol Source Type: research
Publication date: Available online 10 October 2020Source: European UrologyAuthor(s): Stanley Weng, Renzo G. DiNatale, Andrew Silagy, Roy Mano, Kyrollis Attalla, Mahyar Kashani, Kate Weiss, Nicole E. Benfante, Andrew G. Winer, Jonathan A. Coleman, Victor E. Reuter, Paul Russo, Ed Reznik, Satish K. Tickoo, A. Ari Hakimi
Source: European Urology - Category: Urology & Nephrology Source Type: research
Conclusions: The study ’s findings support the efficacy of tube weaning based on the published “Graz model of tube weaning” for children born with EA/TEF and indicate the necessity of specialized tube weaning programs for these patients.What is Known:• Children with esophageal atresia/tracheoesophageal fistula often suffer from feeding problems and tube dependency.• Different tube weaning programs and outcomes have been published, but not specifically for children with EA.What is New:• Evaluation of a large sample of children referred for tube weaning after EA repair.• Most children wi...
Source: European Journal of Pediatrics - Category: Pediatrics Source Type: research
Publication date: December 2020Source: Journal of Functional Foods, Volume 75Author(s): Jian Zhang, Xiaohang Fu, Wenhui Li, He Li, Zhiwei Ying, Xinqi Liu, Liduan Yin
Source: Journal of Functional Foods - Category: Nutrition Source Type: research
Authors: Ebrahimi-Zadehlou P, Najafpour A, Mohammadi R Abstract PURPOSE: It is compulsory to make a tension-free, end-to-end repair in transected injuries. However, when it comes to longer defects, placement of an autograft or nerve conduits is required. The present study was designed to assess regenerative potential of silymarin nanoparticles loaded into chitosan conduit on peripheral nerve regeneration in a transected sciatic nerve model in rat. METHODS: In NML group left sciatic nerve was exposed through a gluteal muscle incision and after careful hemostasis skin was closed. In TSC group left sciatic nerve w...
Source: Neurological Research - Category: Neurology Tags: Neurol Res Source Type: research
CONCLUSIONS: The SMs in PWIBDs and a craniotomy performed immediately before starting the process of determining brain death seem to be related to lengthening the TT-BD. PMID: 33029974 [PubMed]
Source: Journal of Clinical Neurology - Category: Neurology Tags: J Clin Neurol Source Type: research
AbstractBackgroundTo repair a blow-out fracture, the endonasal approach is indicated when the center of the fracture occurs in the orbital floor medial to the infraorbital nerve, or when the orbital tissue is herniated inwards; additionally, the combined endonasal and transmaxillary approach is indicated for fractures of the anterior and lateral parts of the orbital floor.Method and conclusionThe use of endoscopic modified medial maxillectomy and special instruments enabled the surgeon to repair an outwardly herniated blow-out fracture by the endonasal approach alone, despite the center of the fracture being in the orbital...
Source: European Archives of Oto-Rhino-Laryngology - Category: ENT & OMF Source Type: research
CONCLUSION: DAAs are effective and safe in the treatment of recurrent HCV infection in LT recipients with history of HCC. Relapse to pre- and post-LT DAA therapy is associated with post-transplantation HCC recurrence. PMID: 33033569 [PubMed]
Source: World Journal of Hepatology - Category: Gastroenterology Tags: World J Hepatol Source Type: research
Authors: Singh G, Yoshida EM, Rathi S, Marquez V, Kim P, Erb SR, Salh BS Abstract Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. If diagnosed early, curative treatment options such as surgical resection, loco-regional therapies, and liver transplantation are available to patients, increasing their chances of survival and improving their quality of life. Unfortunately, most patients are diagnosed with late stage HCC where only palliative treatment is available. Therefore, biomarkers which could detect HCC early with a high degree of sensitivity and specificity, may play...
Source: World Journal of Hepatology - Category: Gastroenterology Tags: World J Hepatol Source Type: research
Authors: Arab JP, Dirchwolf M, Álvares-da-Silva MR, Barrera F, Benítez C, Castellanos-Fernandez M, Castro-Narro G, Chavez-Tapia N, Chiodi D, Cotrim H, Cusi K, de Oliveira CPMS, Díaz J, Fassio E, Gerona S, Girala M, Hernandez N, Marciano S, Masson W, Mendez-Sanchez N, Leite N, Lozano A, Padilla M, Panduro A, Paraná R, Parise E, Perez M, Poniachik J, Restrepo JC, Ruf A, Silva M, Tagle M, Tapias M, Torres K, Vilar-Gomez E, Costa Gil JE, Gadano A, Arrese M Abstract Non-alcoholic fatty liver disease (NAFLD) currently represents an epidemic worldwide. NAFLD is the most frequently diagnosed chr...
Source: Annals of Hepatology - Category: Gastroenterology Tags: Ann Hepatol Source Type: research
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