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Cord stem cell transplants

Geeta Shroff, Dipin Thakur, Varun Dhingra, Deepak Singh Baroli, Deepanshu Khatri, Rahul Dev Gautam
BACKGROUND: The major complication faced by patients with chronic static spinal cord injury (SCI) is the loss of mobilization. With the aim to rehabilitate SCI patients, physiotherapy is performed worldwide. However, it only helps the patients to live with their disabilities. An interdisciplinary management involving human embryonic stem cell (hESC) therapy along with physiotherapy as a supportive therapy offers regenerative treatment of the patients with SCI. MAIN BODY: The present study focuses on the role of physiotherapy in the mobilization of patients with SCI (paraplegic 136; tetraplegics 90) undergoing hESC therapy...
December 2016: Clinical and Translational Medicine
Janet Ayello, Jessica Hochberg, Allyson Flower, Yaya Chu, Laxmi V Baxi, William Quish, Carmella van de Ven, Mitchell S Cairo
NK cells play a significant role in reducing relapse in patients with hematological malignancies following allogeneic stem cell transplantation but NK cell number and naturally occurring inhibitory signals limit their capability. IL-15 and 4-1BBL are important modulators of NK expansion and functional activation. With an aim to overcome these limitations, cord blood (CB) mononuclear cells (MNC) were ex-vivo expanded (EvE) for 7 days with genetically modified K562-mbIL15-41BBL (MODK562) or wildtype K562 (WTK562)...
October 17, 2016: Experimental Hematology
L Faivre, M Chaussard, L Vercellino, V Vanneaux, B Hosten, K Teixera, V Parietti, P Merlet, L Sarda-Mantel, N Rizzo-Padoin, J Larghero
PURPOSE OF THE STUDY: After transplantation, cord blood (CB) hematopoietic stem and progenitor cells (HSPCs) are able to home to the bone marrow niche and to reconstitute the hematopoietic system. PET-CT imaging may be a useful method to monitor this parameter in different conditions. The aim of our study was to set up an efficient method for HSPC radiolabelling with [(18)F] fluorodeoxyglucose ((18)F-FDG) and to follow early HSPC homing through PET-CT in mice. MATERIALS AND METHODS: Purified CB HSPCs were radiolabelled with (18)F-FDG at 37° C with various conditions of cell concentration, incubation time and radioactivity concentration in order to define the in vitro condition that allows both sufficient (18)F-FDG uptake to get high quality PET imaging, and preservation of HSPC viability and functional properties during 3h after radiolabelling...
July 2016: Current Research in Translational Medicine
Hannah K Choe, Usama Gergis, Sebastian A Mayer, Himanshu Nagar, Adrienne A Phillips, Tsiporah B Shore, Michael J Smith, Koen van Besien
BACKGROUND: Preliminary evidence indicates that the addition of low dose TBI (2-4 Gy) to reduced intensity conditioning may reduce the rate of relapse in allogeneic stem cell transplants. In very high risk patients receiving combination haploidentical-single unit cord blood transplants, we have added 4 Gy TBI to the widely used fludarabine, melphalan conditioning regimen, in hopes of reducing relapse and decreasing graft rejection. METHODS: We retrospectively reviewed the posttransplant outcomes of patients who underwent haplo-cord SCT between May 2013 and March 2015 and who received fludarabine 30mg/m2 D-7 to -3, melphalan 140mg/m2 D-2, and 2 Gy TBI D-4 and -3...
October 19, 2016: Transplantation
Omar S Aljitawi, Soumen Paul, Avishek Ganguly, Tara L Lin, Sid Ganguly, George Vielhauer, Maegan L Capitano, Amy Cantelina, Brea Lipe, Jonathan D Mahnken, Amanda Wise, Abigale Berry, Anurag K Singh, Leyla Shune, Christopher Lominska, Sunil Abhyankar, Dennis Allin, Mary Laughlin, Joseph P McGuirk, Hal E Broxmeyer
Umbilical cord blood (UCB) engraftment is in part limited by graft cell dose, generally one log less than that of bone marrow (BM)/peripheral blood (PB) cell grafts. Strategies toward increasing hematopoietic stem/progenitor cell (HSPC) homing to BM have been assessed in order to improve UCB engraftment. Despite recent progress, a complete understanding of how HSPC homing and engraftment are regulated is still elusive. We provide evidence that blocking erythropoietin (EPO)-EPO receptor (R) signaling promotes homing to BM and early engraftment of UCB CD34(+) cells...
October 19, 2016: Blood
Na Kyung Lee, Hyeong Seop Kim, Dongkyeom Yoo, Jung Won Hwang, Soo Jin Choi, Wonil Oh, Jong Wook Chang, Duk L Na
The success of stem cell therapy is highly dependent on accurate delivery of stem cells to the target site of interest. Possible ways to track the distribution of MSCs in vivo include the use of reporter genes or nanoparticles. The U.S. Food and Drug Administration (FDA) has approved ferumoxytol (Feraheme® [USA], Rienso® [UK]) as a treatment for iron deficiency anemia. Ferumoxytol is an ultrasmall superparamagnetic iron oxide nanoparticle (USPIO) that has recently been used to track the fate of transplanted cells using magnetic resonance imaging (MRI)...
October 18, 2016: Stem Cell Reviews
Wook-Jin Chung
Pulmonary arterial hypertension (PAH) is a life-threatening disorder with a poor prognosis and causes pulmonary vascular remodeling accompanied with increased pulmonary arterial medial wall thickness and fibrosis, which leads to vascular and right ventricular (RV) dysfunction. Despite treatment with prostacyclin, endothelin antagonist, and phosphodiesterase-5 inhibitors the 1-year mortality rate of PAH still remains high. Recent registries, clinical trials, and basic researches have been increasing the knowledge of PAH and it would contribute to potential therapeutic strategies and better clinical outcome...
September 2016: Journal of Hypertension
Ching-Chung Liang, Tsong-Hai Lee, Shuenn-Dhy Chang
OBJECTIVE: To demonstrate the effect of human umbilical cord blood-derived CD34(+) cells on bladder dysfunction induced by cerebral ischemia in rats. MATERIALS AND METHODS: Female rats were subjected to either 60 minute middle cerebral artery occlusion (MCAO) or a sham operation. Rats were divided into four groups: sham operation, MCAO without treatment, infusion with 1×10(6) CD34(+) cells 30 minutes before MCAO, and infusion with 1×10(6) CD34(+) cells 3 hours after MCAO...
October 2016: Taiwanese Journal of Obstetrics & Gynecology
Tasuku Suzuki, Yoji Sasahara, Atsuo Kikuchi, Humihiko Kakuta, Toshihiko Kashiwabara, Takashi Ishige, Yoshiko Nakayama, Masanori Tanaka, Akihiro Hoshino, Hirokazu Kanegane, Daiki Abukawa, Shigeo Kure
PURPOSE: Pediatric inflammatory bowel disease (IBD) is a heterogeneous disorder caused by multiple factors. Although genetic and immunological analyses are required for a definitive diagnosis, no reports of a comprehensive genetic study of a Japanese population are available. METHODS: In total, 35 Japanese patients <16 years of age suffering from IBD, including 27 patients aged <6 years with very early-onset IBD, were enrolled in this multicenter study. Exome and targeted gene panel sequencing was performed for all patients...
October 17, 2016: Journal of Clinical Immunology
Hamoud Al-Mousa, Abbas Hawwari, Abdulaziz Al-Ghonaium, Bandar Al-Saud, Hasan Al-Dhekri, Saleh Al-Muhsen, Sahar Elshorbagi, Majed Dasouki, Lina El-Baik, Amal Alseraihy, Mouhab Ayas, Rand Arnaout
WIP deficiency causes autosomal recessive Wiskott - Aldrich syndromewith normal platelet mean volume and can be cured with hematopoietic stem cell transplantation from genoidentical related or unrelated umbilical cord.
October 11, 2016: Journal of Allergy and Clinical Immunology
Armin Blesch
Beyond impaired motor and sensory function, neuropathic pain and loss of bladder control caused by spinal cord injuries (SCIs) can severely affect quality of life. In this issue of Cell Stem Cell, Fandel et al. (2016) show that transplanted human ESC-derived cells biased to produce inhibitory interneurons significantly improve pain and bladder function in rodent SCI models.
October 6, 2016: Cell Stem Cell
Christopher F Adams, Andrew W Dickson, Jan-Herman Kuiper, Divya M Chari
Tissue engineering studies are witnessing a major paradigm shift to cell culture on biomimetic materials that replicate native tissue features from which the cells are derived. Few studies have been performed in this regard for neural cells, particularly in nanomedicine. For example, platforms such as magnetic nanoparticles (MNPs) have proven efficient as multifunctional tools for cell tracking and genetic engineering of neural transplant populations. However, as far as we are aware, all current studies have been conducted using neural cells propagated on non-neuromimetic substrates that fail to represent the mechano-elastic properties of brain and spinal cord microenvironments...
October 6, 2016: Nanoscale
Ivan Alić, Nina Kosi, Katarina Kapuralin, Dunja Gorup, Srećko Gajović, Roland Pochet, Dinko Mitrečić
To analyse events following transplantation of stem cells in the brain robust tools for tracing stem cells are required. Here we took advantage of the mouse strain B6.Cg-Tg(Thy1-YFP)16Jrs/J (Thy1 YFP-16), where yellow fluorescent protein (YFP) is under control of the promoter of Thy1 gene. This allows visualising whole neurons, i.e. their cell body, axons and dendrites. In this work fluorescent cells were followed during embryonic development, in vitro differentiation, and after transplantation in the healthy and stroke-affected mouse brain...
October 3, 2016: Neuroscience Letters
Anne Tscherter, Martina Heidemann, Sonja Kleinlogel, Jürg Streit
Presently there exists no cure for spinal cord injury (SCI). However, transplantation of embryonic tissue into spinal cord (SC) lesions resulted in axon outgrowth across the lesion site and some functional recovery, fostering hope for future stem cell therapies. Although in vivo evidence for functional recovery is given, the exact cellular mechanism of the graft support remains elusive: either the grafted cells provide a permissive environment for the host tissue to regenerate itself or the grafts actually integrate functionally into the host neuronal network reconnecting the separated SC circuits...
2016: Frontiers in Cellular Neuroscience
Jiang Xie, Bin Wang, Lian Wang, Fang Dong, Gang Bai, Yongjun Liu
BACKGROUND Intracerebral hemorrhage (ICH) is one severe subtype of stroke, with a very complex pathology. Stem cell-based therapy holds promising potential in the treatment of neurological disorders. Human umbilical cord-derived mesenchymal stem cells (UC-MSCs) have a therapeutic effect in recovery from brain damage following ICH. The aim of this study was to identify an effective and convenient way of using UC-MSCs in the ICH rat model. MATERIAL AND METHODS CM-DiI-labeled human UC-MSCs were transplanted intracerebrally or intravenously into collagenase VII-induced ICH rat models...
October 5, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Andrew Agbay, John M Edgar, Meghan Robinson, Tara Styan, Krista Wilson, Julian Schroll, Junghyuk Ko, Nima Khadem Mohtaram, Martin Byung-Guk Jun, Stephanie M Willerth
Ongoing clinical trials are evaluating the use of stem cells as a way to treat traumatic spinal cord injury (SCI). However, the inhibitory environment present in the injured spinal cord makes it challenging to achieve the survival of these cells along with desired differentiation into the appropriate phenotypes necessary to regain function. Transplanting stem cells along with an instructive biomaterial scaffold can increase cell survival and improve differentiation efficiency. This study reviews the literature discussing different types of instructive biomaterial scaffolds developed for transplanting stem cells into the injured spinal cord...
2016: Cells, Tissues, Organs
Christopher D L Johnson, Anthony R D'Amato, Ryan J Gilbert
There is currently no cure for individuals with spinal cord injury (SCI). While many promising approaches are being tested in clinical trials, the complexity of SCI limits several of these approaches from aiding complete functional recovery. Several different categories of biomaterials are investigated for their ability to guide axonal regeneration, to deliver proteins or small molecules locally, or to improve the viability of transplanted stem cells. The purpose of this study is to provide a brief overview of SCI, present the different categories of biomaterial scaffolds that direct and guide axonal regeneration, and then focus specifically on electrospun fiber guidance scaffolds...
2016: Cells, Tissues, Organs
He Dongsheng, Zhang Zhuo, Lao Jiamin, Meng Hailan, Han Lijuan, Chen Fan, Ye Dan, Zhang He, Xu Yun
Among various therapeutic approaches for stroke, treatment with human umbilical cord mesenchymal stem cells (hUC-MSCs) has acquired some promising results. However, the underlying mechanisms remain unclear. We analyzed the protein expression spectrum of the cortical peri-infarction region after ischemic stroke followed by treatment with hUC-MSCs, and found 16 proteins expressed differentially between groups treated with or without hUC-MSCs. These proteins were further determined by Gene Ontology term analysis and network with CD200-CD200R1, CCL21-CXCR3 and transcription factors...
October 2016: Aging and Disease
Yan Zhao, Yuan Zuo, Jianming Jiang, Huibo Yan, Xiliang Wang, Hunjun Huo, Yulong Xiao
Spinal cord injury (SCI) comprises nerve and motor function disorders that may be caused by a variety of damaging factors and is challenging to treat. The aim of the present study was to investigate the regenerative effects of neural stem cell (NSC) transplantation combined with intraperitoneal injection of erythropoietin (EPO) on cross-sectional SCI in rats. A model of SCI was induced in 40 adult Wistar rats via the complete transection of the 10th thoracic vertebra (T10). The rats were allocated at random into 4 groups: Control, NSC, EPO and NSC + EPO groups (n=10 per group)...
October 2016: Experimental and Therapeutic Medicine
Nancy El-Hossary, Hamdy Hassanein, Abdel Wahab El-Ghareeb, Hisham Issa
AIM: To evaluate the efficiency of mesenchymal stem cells isolated from Wharton's jelly (WJ-MSCs) through either the intravenous or intraperitoneal transplantations into streptozotocin (STZ)-induced diabetic rats as a therapy for type 1 diabetes mellitus (T1DM). METHODOLOGY: A rat model with STZ induction was established and the rats were divided into 3 groups: a tail vein injection group, an intraperitoneal injection group and a STZ control group. Following transplantation, blood glucose levels were monitored weekly then the pancreatic tissues were collected to examine the pancreatic islets by histopathology and morphometric studies...
September 21, 2016: Diabetes Research and Clinical Practice
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