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https://www.readbyqxmd.com/read/29158674/skin-derived-mesenchymal-stem-cells-as-quantum-dot-vehicles-to-tumors
#1
Dominyka Dapkute, Simona Steponkiene, Danute Bulotiene, Liga Saulite, Una Riekstina, Ricardas Rotomskis
Purpose: Cell-mediated delivery of nanoparticles is emerging as a new method of cancer diagnostics and treatment. Due to their inherent regenerative properties, adult mesenchymal stem cells (MSCs) are naturally attracted to wounds and sites of inflammation, as well as tumors. Such characteristics enable MSCs to be used in cellular hitchhiking of nanoparticles. In this study, MSCs extracted from the skin connective tissue were investigated as transporters of semiconductor nanocrystals quantum dots (QDs)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29158085/generation-of-branching-ureteric-bud-tissues-from-human-pluripotent-stem-cells
#2
Shin-Ichi Mae, Makoto Ryosaka, Taro Toyoda, Kyoko Matsuse, Yoichi Oshima, Hiraku Tsujimoto, Shiori Okumura, Aya Shibasaki, Kenji Osafune
Recent progress in kidney regeneration research is noteworthy. However, the selective and robust differentiation of the ureteric bud (UB), an embryonic renal progenitor, from human pluripotent stem cells (hPSCs) remains to be established. The present study aimed to establish a robust induction method for branching UB tissue from hPSCs towards the creation of renal disease models. Here, we found that anterior intermediate mesoderm (IM) differentiates from anterior primitive streak, which allowed us to successfully develop an efficient two-dimensional differentiation method of hPSCs into Wolffian duct (WD) cells...
November 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29150436/microvesicles-derived-from-human-wharton-s-jellymesenchymal-stem-cells-ameliorate-ischemia-reperfusion-induced-renal-fibrosis-by-releasing-from-g2-m-cell-cycle-arrest
#3
Wenxia Chen, Yongbin Yan, Chundong Song, Ying Ding, Tao Du
Studies have demonstrated that microvesicles (MVs) derived from human Wharton's Jelly mesenchymal stromal cells (hWJMSCs) could ameliorate renal ischemia/reperfusion injury (IRI), however, the underlying mechanisms were not clear yet. Here, MVs were isolated and injected intravenously into rats immediately after ischemia of the left kidney, and Erk1/2 activator HGF or inhibitor U0126 was administrated, respectively. Tubular cell proliferation and apoptosis were identified by Ki67 or TUNEL immunostaining. Masson's tri-chrome straining and alpha-smooth muscle actin (α -SMA) staining were used for assessing renal fibrosis...
November 17, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29149982/marrow-mesenchymal-stem-cells-effectively-reduce-histologic-changes-in-a-rat-model-of-chronic-renal-allograft-rejection
#4
P Yu, Z Wang, Y Liu, Z Xiao, Y Guo, M Li, M Zhao
BACKGROUND: Chronic allograft rejection remains as the leading cause of the chronic renal grafts loss post-transplantation. No therapy has been found really effective to prevent and treat chronic allograft rejection. Mesenchymal stem cells (MSCs) have characteristics of immunomodulation and are expected to be used for inducing graft immune tolerance in organ transplantation. We investigated the efficacy and safety of early infusion of donor-derived marrow MSCs in a rat model of chronic renal allograft rejection...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29145879/allogeneic-mesenchymal-stem-cell-as-induction-therapy-to-prevent-both-delayed-graft-function-and-acute-rejection-in-deceased-donor-renal-transplantation-study-protocol-for-a-randomized-controlled-trial
#5
Qipeng Sun, Liangqing Hong, Zhengyu Huang, Ning Na, Xuefeng Hua, Yanwen Peng, Ming Zhao, Ronghua Cao, Qiquan Sun
BACKGROUND: Using kidneys from deceased donors is an available strategy to meet the growing need of grafts. However, higher incidences of delayed graft function (DGF) and acute rejection exert adverse effects on graft outcomes. Since ischemia-reperfusion injury (IRI) and ongoing process of immune response to grafts are the major causes of DGF and acute rejection, the optimal induction intervention should possess capacities of both repairing renal structure injury and suppressing immune response simultaneously...
November 16, 2017: Trials
https://www.readbyqxmd.com/read/29141316/-a-clinical-analysis-of-micafungin-treatment-of-pulmonary-invasive-fungal-infection-in-pediatric-patients-with-acute-leukemia-or-post-hematopoietic-stem-cells-transplantation
#6
K Huang, K Y Qiu, L L Deng, J P Fang, Y Li, H X Guo, D H Zhou
Objective: To investigate the efficacy and safety of micafungin (MCF) for pulmonary invasive fungal disease (PIFD) in pediatric patients with acute leukemia or post hematopoietic stem cells transplantation. Method: Twenty-five neutropenic PIFD children with acute leukemia or post hematopoietic stem cells transplantation in Sun Yat-sen Memorial Hospital of Sun Yat-sen University were selected from January 2012 to June 2015, including 12 males and 13 females, age range 2-15 (average 6.2±2.0) years. There were 12 cases of acute leukemia (AL) after chemotherapy, 4 cases of acute leukemia (AL) after allogeneic hematopoietic stem cell transplantation (allo-HSCT) and 9 cases of β-thalassemia major after allo-HSCT...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29136724/-expert-consensus-for-the-diagnosis-and-treatment-of-patients-with-renal-impairment-of-multiple-myeloma
#7
(no author information available yet)
Renal impairment (RI) is a common complication of multiple myeloma (MM), which is presented as chronic kidney disease (CKD) or acute kidney injury (AKI). The typical pathological feature is cast nephropathy. Presently international system staging (ISS) is used in evaluating MM. Although the classic Durie-Salmon staging system could be still used in clinical practice, it may miss out some patients with renal impairment. For evaluations of RI in MM patients with CKD, it's recommended to assess the estimated glomerular filtration rate (eGFR) by creatinine based formula CKD-epidemiology collaboration (EPI) or modification of diet in renal disease(MDRD) and to stage the renal injuries according to 2013 Kidney Disease Improving Global Outcomes (KDIGO) CKD guidelines...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29135052/enhanced-effect-of-human-mesenchymal-stem-cells-expressing-human-tnf-%C3%AE-r-fc-and-ho-1-gene-on-porcine-islet-xenotransplantation-in-humanized-mice
#8
Han-Sin Lee, Sanghyun Song, Du Yeon Shin, Geun-Soo Kim, Jong-Hyun Lee, Chan Woo Cho, Kyo Won Lee, Hyojun Park, Curie Ahn, Jaeseok Yang, Heung-Mo Yang, Jae Berm Park, Sung-Joo Kim
BACKGROUND: Porcine islet xenotransplantation is considered an attractive alternative treatment for type 1 diabetes mellitus. However, it is largely limited because of initial rejection due to Instant Blood-Mediated Inflammatory Reaction (IBMIR), oxidative stress, and inflammatory responses. Recently, soluble tumor necrosis factor-ɑ receptor type I (sTNF-αR) and heme oxygenase (HO)-1 genes (HO-1/sTNF-αR) have been shown to improve the viability and functionality of porcine islets after transplantation...
November 14, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29132705/il-17a-improves-the-efficacy-of-mesenchymal-stem%C3%A2-cells-in-ischemic-reperfusion-renal-injury%C3%A2-by%C3%A2-increasing-treg-percentages-by-the%C3%A2-cox-2-pge2%C3%A2-pathway
#9
Ming Bai, Li Zhang, Bo Fu, Jiuxu Bai, Yingjie Zhang, Guangyan Cai, Xueyuan Bai, Zhe Feng, Shiren Sun, Xiangmei Chen
Mesenchymal stem cells (MSCs) are effective for the management of experimental ischemia-reperfusion acute kidney injury (IRI-AKI). Immune modulation is one of the important mechanisms of MSCs treatment. Interleukin-17A (IL-17A) pretreated MSCs are more immunosuppressive with minimal changes in immunogenicity in vitro. Here, we demonstrated that administration of IL-17A-pretreated MSCs resulted in significantly lower acute tubular necrosis scores, serum creatinine, and BUN of mice with IRI-AKI, compared with the administration of MSCs...
November 11, 2017: Kidney International
https://www.readbyqxmd.com/read/29129523/higher-order-kidney-organogenesis-from-pluripotent-stem-cells
#10
Atsuhiro Taguchi, Ryuichi Nishinakamura
Organogenesis generates higher-order structures containing functional subunits, connective components, and progenitor niches. Despite recent advances in organoid-based modeling of tissue development, recapitulating these complex configurations from pluripotent stem cells (PSCs) has remained challenging. In this study, we report assembly of kidney organoids that recapitulate embryonic branching morphogenesis. By studying the distinct origins and developmental processes of the ureteric bud, which contains epithelial kidney progenitors that undergo branching morphogenesis and thereby plays a central role in orchestrating organ geometry, and neighboring mesenchymal nephron progenitors, we established a protocol for differential induction of each lineage from mouse and human PSCs...
November 4, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/29121521/induced-pluripotent-stem-cells-derived-from-an-autosomal-dominant-polycystic-kidney-disease-patient-carrying-a-pkd1-q533x-mutation
#11
Jia-Jung Lee, Ming-Ching Ho, Ching-Ying Huang, Cheng-Hao Wen, Yu-Che Cheng, Yu-Hung Hsu, Daw-Yang Hwang, Huai-En Lu, Hung-Chun Chen, Patrick C H Hsieh
Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the most prevalent monogenic kidney disorder leading to kidney failure. We generated induced pluripotent stem cells (iPSCs) from a 37-year-old man carrying a PKD1 Q533X mutation who suffered from kidney failure and a myocardial infarction. The iPSCs were reprogrammed from the patient's peripheral blood mononuclear cells using the Sendai virus system, and were confirmed to possess the specific PKD1 Q533X mutation and normal karyotype. Pluripotency was confirmed using in vitro and in vivo assays...
October 28, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29116998/mesenchymal-stem-cells-from-bone-marrow-adipose-tissue-and-lung-tissue-differentially-mitigate-lung-and-distal-organ-damage-in-experimental-acute-respiratory-distress-syndrome
#12
Johnatas D Silva, Miquéias Lopes-Pacheco, Ana H R Paz, Fernanda F Cruz, Elga B Melo, Milena V de Oliveira, Débora G Xisto, Vera L Capelozzi, Marcelo M Morales, Paolo Pelosi, Elizabeth Cirne-Lima, Patricia R M Rocco
OBJECTIVES: Mesenchymal stem cells-based therapies have shown promising effects in experimental acute respiratory distress syndrome. Different mesenchymal stem cells sources may result in diverse effects in respiratory diseases; however, there is no information regarding the best source of mesenchymal stem cells to treat pulmonary acute respiratory distress syndrome. We tested the hypothesis that mesenchymal stem cells derived from bone marrow, adipose tissue, and lung tissue would lead to different beneficial effects on lung and distal organ damage in experimental pulmonary acute respiratory distress syndrome...
November 7, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29114949/protective-effect-of-gdnf-engineered-amniotic-fluid-derived-stem-cells-on-the-renal-ischaemia-reperfusion-injury-in-vitro
#13
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/29114931/thrombotic-microangiopathy-with-concomitant-gi-agvhd-after-allogeneic-hematopoietic-stem-cell-transplantation-risk-factors-and-outcome
#14
Xiao-Hui Zhang, Xiao Liu, Qin-Ming Wang, Yun He, Xiao-Lu Zhu, Jia-Min Zhang, Wei Han, Huan Chen, Yu-Hong Chen, Feng-Rong Wang, Jing-Zhi Wang, Yuan-Yuan Zhang, Xiao-Dong Mo, Yao Chen, Yu Wang, Hai-Xia Fu, Ying-Jun Chang, Lan-Ping Xu, Kai-Yan Liu, Xiao-Jun Huang
OBJECTIVES: To explore the possible risk factors for the occurrence and mortality of TMA with concomitant aGVHD and to investigate outcomes and treatments of this disorder after allo-HSCT. METHODS: 50 cases diagnosed with TMA with concomitant aGVHD and 150 controls were identified from a cohort composed of 3 992 patients who underwent allo-HSCT from 2008 to 2016. RESULTS: Grade III-IV aGVHD (p=0.000), acute kidney injury (AKI) (p=0.033) and hypertension (p=0...
November 7, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/29112105/secretome-conveys-the-protective-effects-of-ascs-therapeutic-potential-following-hemorrhagic-shock
#15
Mostafa Ashmwe, Carina Penzenstadler, Arian Bahrami, Anton Klotz, Mohammad Jafarmadar, Asmita Banerjee, Susanne Wolbank, Heinz Redl, Soheyl Bahrami
OBJECTIVES: We tested whether resuscitation supplemented with a) rat adipose-derived stem cells (ASCs) or b) secretome (conditioned media) of ASCs can ameliorate inflammation, cell/organ injury, and/or improve outcome after Hemorrhagic traumatic shock (HTS). INTERVENTIONS: Rats were subjected to HTS and a resuscitation protocol that mimics pre-hospital restrictive reperfusion followed by an adequate reperfusion phase. 20 minutes into the restrictive reperfusion, animals received an intravenous bolus of 2x10 cells (ASC group) or the secretome produced by 2x10 ASCs/24 h (ASC-Secretome group)...
November 3, 2017: Shock
https://www.readbyqxmd.com/read/29109929/opportunities-for-therapeutic-intervention-during-machine-perfusion
#16
Negin Karimian, Heidi Yeh
Purpose of review: There is a vast discrepancy between the number of patients waiting for organ transplantation and the available donor organs. Ex vivo machine perfusion (MP) has emerged in an effort to expand the donor pool, by improving organ preservation, providing diagnostic information, and more recently, acting as a platform for organ improvement. This article reviews the current status of MP with a focus on its role in organ preconditioning and therapeutic interventions prior to transplantation...
June 2017: Current Transplantation Reports
https://www.readbyqxmd.com/read/29105567/in-vivo-survival-of-human-endometrial-mesenchymal-stem-cells-transplanted-under-the-kidney-capsule-of-immunocompromised-mice
#17
Shanti Gurung, James A Deane, Saeedeh Darzi, Jerome A Werkmeister, Caroline E Gargett
Human endometrial mesenchymal stem cells (eMSCs) are a well-characterised adult stem cell type with potential for use in regenerative medicine or cell-therapy. As a proof of principle, we demonstrated that eMSCs promoted wound healing by reducing the inflammatory response through a paracrine action in a subcutaneous rat model of wound repair. However, an efficient protocol for culturing eMSCs in the undifferentiated state and a reliable method of labelling them for cell tracking were lacking. Here, we investigated the use of a lentiviral vector containing the mCherry fluorescent reporter gene to transduce and label eMSCs following in vitro culturing in A83-01-containing medium, and different methods of tracing the labelled cells following transplantation under the kidney capsule of immunocompromised NSG mice...
November 4, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29104526/-tissue-papers-from-organ-specific-decellularized-extracellular-matrices
#18
Adam E Jakus, Monica M Laronda, Alexandra S Rashedi, Christina M Robinson, Chris Lee, Sumanas W Jordan, Kyle E Orwig, Teresa K Woodruff, Ramille N Shah
Using an innovative, tissue-independent approach to decellularized tissue processing and biomaterial fabrication, the development of a series of "tissue papers" derived from native porcine tissues/organs (heart, kidney, liver, muscle), native bovine tissue/organ (ovary and uterus), and purified bovine Achilles tendon collagen as a control from decellularized extracellular matrix particle ink suspensions cast into molds is described. Each tissue paper type has distinct microstructural characteristics as well as physical and mechanical properties, is capable of absorbing up to 300% of its own weight in liquid, and remains mechanically robust (E = 1-18 MPa) when hydrated; permitting it to be cut, rolled, folded, and sutured, as needed...
September 13, 2017: Advanced Functional Materials
https://www.readbyqxmd.com/read/29102933/mesenchymal-stem-cells-contribute-to-improvement-of-renal-function-in-a-canine-kidney-injury-model
#19
Seung-Jun Lee, Min-Ok Ryu, Min-Soo Seo, Sang-Bum Park, Jin-Ok Ahn, Sei-Myoung Han, Kyung-Sun Kang, Dong-Ha Bhang, Hwa-Young Youn
BACKGROUND/AIM: The kidney excretes waste materials and regulates important metabolic functions, and renal disorders constitute a significant medical problem and can result in fatalities. In the present study, mesenchymal stem cells derived from canine umbilical cord blood (cUCB-MSCs) were isolated and evaluated for their ability to improve renal function in a canine model of acute kidney injury (AKI). MATERIALS AND METHODS: The canine AKI model was developed by i...
November 2017: In Vivo
https://www.readbyqxmd.com/read/29101070/metabolic-syndrome-alters-expression-of-insulin-signaling-related-genes-in-swine-mesenchymal-stem-cells
#20
Sabena M Conley, Xiang-Yang Zhu, Alfonso Eirin, Hui Tang, Amir Lerman, Andre J van Wijnen, Lilach O Lerman
AIMS: Metabolic syndrome (MetS) is associated with insulin resistance (IR) and impaired glucose metabolism in muscle, fat, and other cells, and may induce inflammation and vascular remodeling. Endogenous reparative systems, including adipose tissue-derived mesenchymal stem/stromal cells (MSC), are responsible for repair of damaged tissue. MSC have also been proposed as an exogenous therapeutic intervention in patients with cardiovascular and chronic kidney disease (CKD). The feasibility of using autologous cells depends on their integrity, but whether in MetS IR involves adipose tissue-derived MSC remains unknown...
October 31, 2017: Gene
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