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Stem cell transplantation

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https://www.readbyqxmd.com/read/28342811/myeloid-sarcoma-presentation-diagnosis-and-treatment
#1
REVIEW
L Max Almond, Maria Charalampakis, Samuel J Ford, David Gourevitch, Anant Desai
Myeloid sarcoma is an extramedullary tumor of immature granulocytic cells. It is a rare condition, most often associated with acute myeloid leukemia (AML), although in some rare cases it may present in nonleukemic patients. It should therefore be considered as a differential diagnosis of any atypical cellular infiltrate. It may occur at any site, leading to very varied clinical presentations. Diagnosis is challenging and relies on a high index of suspicion as well as radiology, histology, immunophenotyping, and molecular analyses, which also are essential for risk stratification and treatment planning...
March 7, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28340154/irradiation-strongly-reduces-tumorigenesis-of-human-induced-pluripotent-stem-cells
#2
Shoki Inui, Kazumasa Minami, Emiko Ito, Hiromasa Imaizumi, Seiji Mori, Masahiko Koizumi, Satsuki Fukushima, Shigeru Miyagawa, Yoshiki Sawa, Nariaki Matsuura
Induced pluripotent stem (iPS) cells have demonstrated they can undergo self-renewal, attain pluripotency, and differentiate into various types of functional cells. In clinical transplantation of iPS cells, however, a major problem is the prevention of tumorigenesis. We speculated that tumor formation could be inhibited by means of irradiation. Since the main purpose of this study was to explore the prevention of tumor formation in human iPS (hiPS) cells, we tested the effects of irradiation on tumor-associated factors such as radiosensitivity, pluripotency and cell death in hiPS cells...
March 3, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28339678/ddx4-egfp-transgenic-rat-model-for-the-study-of-germline-development-and-spermatogenesis%C3%A2
#3
Kathrin Gassei, Yi Sheng, Adetunji Fayomi, Payal Mital, Meena Sukhwani, Chih-Cheng Lin, Karen A Peters, Andrew Althouse, Hanna Valli, Kyle E Orwig
Spermatogonial stem cells (SSC) are essential for spermatogenesis and male fertility. In addition, these adult tissue stem cells can be used as vehicles for germline modification in animal models and may have application for treating male infertility. To facilitate the investigation of SSCs and germ lineage development in rats, we generated a DEAD-box helicase 4 (DDX4) (VASA) promoter-enhanced green fluorescent protein (EGFP) reporter transgenic rat. Quantitative real-time polymerase chain reaction and immunofluorescence confirmed that EGFP was expressed in the germ cells of the ovaries and testes and was absent in somatic cells and tissues...
February 20, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28339553/de-and-recellularization-of-the-pig-uterus-a-bioengineering-pilot-study%C3%A2
#4
Hannes Campo, Pedro M Baptista, Nuria López-Pérez, Amparo Faus, Irene Cervelló, Carlos Simón
Absolute uterine factor infertility, or the absence of a functional uterus, has a prevalence of 3%-5% in the general population. Despite the great strides being made in reproductive medicine, patients diagnosed with absolute uterine factor infertility remain untreatable. The only available solution has been gestational surrogacy, but recently the Brannström group presented a viable alternative by reporting the first successful live birth after uterus transplantation. Similar to other transplantations, this approach has inherent limitations such as the paucity of donor organs and the need for long-term immunosuppression...
December 27, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/28339301/cultivation-of-human-oral-mucosal-explants-on-contact-lenses
#5
Barbara Zsebik, László Ujlaky-Nagy, Gergely Losonczy, György Vereb, Lili Takács
Purpose/Aim: Autologous cultivated oral mucosal (OM) epithelial transplantation has been successfully used as corneal epithelial replacement in bilateral limbal stem cell deficiency. Recently, lotrafilcon A contact lens (CL) surface was described as a suitable carrier for cultured stem cells in corneal epithelial transplantation. Our aim was to establish explant cultures from human OM on CL carriers that are free of animal-derived materials and feeder cells. MATERIALS AND METHODS: Human cadaveric 2 mm OM explants were sutured onto CL surfaces and cultivated with fetal calf serum (FCS) or human serum (HS) supplemented culture medium without feeder cells...
March 24, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28339119/evidence-brings-hope-for-high-yield-dopaminergic-human-induced-pluripotent-stem-cell-transplant
#6
Mohammad Sarfi, Farzaneh Rahmani
No abstract text is available yet for this article.
March 24, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28338909/therapeutic-potential-of-mesenchymal-stem-cells-in-acute-kidney-injury-is-affected-by-administration-timing
#7
Xiaoyan Liu, Jieru Cai, Xiaoyan Jiao, Xiaofang Yu, Xiaoqiang Ding
Mesenchymal stem cell (MSC) transplantation is a promising therapy for acute kidney injury; however, the efficacy is limited due to poor survival after transplantation. In this study, we investigated how MSC transplantation timing affected the survival and therapeutic potential of MSCs in the kidney ischemia-reperfusion (I/R) injury model. After kidney I/R injury, the inflammatory process and tissue damage were characterized over 1 week post-I/R, we found that inflammation peaked at 12-24 h post-I/R (h.p.i...
March 10, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28338672/posttransplant-maintenance-therapy-in-multiple-myeloma-the-changing-landscape
#8
REVIEW
S Sengsayadeth, F Malard, B N Savani, L Garderet, M Mohty
Transplant-eligible patients with multiple myeloma (MM) now have extended survival after diagnosis owing to effective modern treatment strategies that include new agents in induction therapy, autologous stem cell transplant (ASCT), consolidation therapy and posttransplant maintenance therapy. Standard of care for newly diagnosed, fit patients includes ASCT and, often nowadays, posttransplant maintenance. Several large studies have shown the efficacy of maintenance with thalidomide, lenalidomide and bortezomib in the treatment scheme of MM with regards to prolonging progression-free survival and, to a lesser degree, overall survival...
March 24, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28338506/a-preliminary-report-radical-surgery-and-stem-cell-transplantation-for-the-treatment-of-patients-with-pancreatic-cancer
#9
Brigitta Omazic, Burcu Ayoglu, Matthias Löhr, Ralf Segersvärd, Caroline Verbeke, Isabelle Magalhaes, Zuzana Potacova, Jonas Mattsson, Alexei Terman, Sam Ghazi, Nils Albiin, Nikolaos Kartalis, Peter Nilsson, Thomas Poiret, Liu Zhenjiang, Rainer Heuchel, Jochen M Schwenk, Johan Permert, Markus J Maeurer, Olle Ringden
We examined the immunologic effects of allogeneic hematopoietic stem cell transplantation (HSCT) in the treatment of pancreatic ductal adenocarcinoma, a deadly disease with a median survival of 24 months for resected tumors and a 5-year survival rate of 6%. After adjuvant chemotherapy, 2 patients with resected pancreatic ductal adenocarcinoma underwent HSCT with HLA-identical sibling donors. Comparable patients who underwent radical surgery, but did not have a donor, served as controls (n=6). Both patients developed humoral and cellular (ie, HLA-A*01:01-restricted) immune responses directed against 2 novel tumor-associated antigens (TAAs), INO80E and UCLH3 after HSCT...
March 23, 2017: Journal of Immunotherapy
https://www.readbyqxmd.com/read/28338461/mesenchymal-stem-cells-suppress-chronic-rejection-in-heterotopic-small-intestine-transplant-rat-models-via-inhibition-of-cd68-transforming-growth-factor-%C3%AE-1-and-platelet-derived-growth-factor-expression
#10
Fuxin Li, Jisen Cao, Zhicheng Zhao, Chuan Li, Feng Qi, Tong Liu
OBJECTIVES: Mesenchymal stem cells are easy to obtain and expand, with characteristics of low immunogenicity and strong tissue repair capacity. In this study, our aim was to investigate the role of mesenchymal stem cells in chronic immune rejection of heterotopic small intestine transplant in rats. MATERIALS AND METHODS: After successfully constructing a rat chronic immune rejection model of heterotopic small intestine transplant, we infused mesenchymal stem cells into the animal recipients...
April 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28338096/identification-of-cardiac-hemo-vascular-precursors-and-their-requirement-of-sphingosine-1-phosphate-receptor-1-for-heart-development
#11
Yan Hu, Brian C Belyea, Minghong Li, Joachim R Göthert, R Ariel Gomez, Maria Luisa S Sequeira-Lopez
The cardiac endothelium plays a crucial role in the development of a functional heart. However, the precise identification of the endocardial precursors and the mechanisms they require for their role in heart morphogenesis are not well understood. Using in vivo and in vitro cell fate tracing concomitant with specific cell ablation and embryonic heart transplantation studies, we identified a unique set of precursors which possess hemogenic functions and express the stem cell leukemia (SCL) gene driven by its 5' enhancer...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337888/decitabine-treatment-for-acute-myeloid-leukemia-relapse-after-allogeneic-hematopoietic-stem-cell-transplantation
#12
X L Liu, X Zhao, C Wang, S J Gao, Y H Tan
Therapeutic options for patients with relapse of acute myeloid leukemia (AML) after allo-SCT are limited. Here, we present a case of a 49-year female with AML who underwent myeloablative allo-SCT from a matched sibling donor. Seven months after transplantation she developed cGVHD and suffered from extramedullary plus concurrent medullary relapse. The presence of CNS extramedullary disease is unique. Our patient was treated with decetabine. After one cycle the patient achieved complete remission and full donor chimerism without severe side effects or the occurrence of GVHD...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337874/the-biomedical-aspects-of-oral-mucosal-epithelial-cell-culture-in-mammals
#13
A Bryja, M Dyszkiewicz-Konwińska, J Budna, W Kranc, A Chachuła, S Borys, S Ciesiółka, J Sokalski, M Prylinski, D Bukowska, P Antosik, M Bruska, M Nowicki, M Zabel, B Kempisty
In recent years, there has been a growing interest in epithelial cell tissue culture, particularly oral mucosa and its application utilizing in vitro cell culture in medicine. This involves tests using animal models to better understand oral mucosa function, and the differences in its construction in various animal models. The use of buccal pouch mucosal cell culture provides insight into the processes of trans mucosal transport and regeneration of the oral epithelium. The processes associated with epithelium regeneration is the base for stem cell research and/or oral cancer investigation...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337288/which-has-more-stem-cell-characteristics-m%C3%A3-ller-cells-or-m%C3%A3-ller-cells-derived-from-in-vivo-culture-in-neurospheres
#14
Hong-Pei Ji, Yu Xiong, En-Dong Zhang, Wei-Tao Song, Zhao-Lin Gao, Fei Yao, Hong Sun, Rong-Rong Zhou, Xiao-Bo Xia
OBJECTIVE: Müller cells can be acquired from in vitro culture or a neurosphere culture system. Both culture methods yield cells with progenitor-cell characteristics that can differentiate into mature nervous cells. We compared the progenitor-cell traits of Müller cells acquired from each method. METHODS: Primary murine Müller cells were isolated in serum culture media and used to generate Müller cells derived from neurospheres in serum-free culture conditions...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337218/effect-of-transplantation-of-bone-marrow-derived-mesenchymal-stem-cells-and-platelets-rich-plasma-on-experimental-model-of-radiation-induced-oral-mucosal-injury-in-albino-rats
#15
Basma Elsaadany, Samar El Kholy, Dalia El Rouby, Laila Rashed, Tarek Shouman
Normal tissue damage following radiotherapy is still a major problem in cancer treatment. Therefore, the current work aimed at exploring the possible role of systemically injected bone marrow derived mesenchymal stem cells (BM-MSCs) and/or locally injected platelet rich plasma (PRP) in ameliorating the side effects of ionizing radiation on the rat's tongue. Twelve rats served as control group (N) and 48 rats received a single radiation dose of 13 Gy to the head and neck region; then, they were equally divided into 4 experimental groups: irradiated only (C), irradiated + MSCs (S), irradiated + (PRP) (P), and combined group (PS)...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28336325/allogeneic-hematopoietic-stem-cell-transplantation-is-underutilized-in-older-patients-with-myelodysplastic-syndromes
#16
Bartlomiej M Getta, Ashwin Kishtagari, Patrick Hilden, Martin S Tallman, Molly Maloy, Patrick Gonzales, Hugo Castro-Malaspina, Miguel-Angel Perales, Sergio Giralt, Roni Tamari, Virginia Klimek
Allogeneic hematopoietic stem cell transplantation (HCT) is the only curative treatment for myelodysplastic syndrome (MDS). The proportion of MDS patients referred for transplant evaluation, those undergoing transplantation and the reasons for not undergoing transplant are unknown. In this retrospective analysis, pre-defined HCT eligibility and indications criteria were applied to 362 unselected patients with newly diagnosed MDS seen by Leukemia faculty between 2008 and 2015 at Memorial Sloan Kettering Cancer Center...
March 20, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28336110/patient-generated-subjective-global-assessment-as-a-prognosis-tool-in-patients-with-multiple-myeloma
#17
Hae Su Kim, Ji Yun Lee, Sung Hee Lim, Jaewon Cho, Seok Jin Kim, Jun Ho Jang, Won Seog Kim, Chul Won Jung, Kihyun Kim
OBJECTIVE: Disease-related weight loss is relatively common in patients with newly diagnosed multiple myeloma (MM), but limited data exist regarding the effects of nutritional status on survival. The aim of this study was to assess the relationship between malnutrition (as measured by Patient-Generated Subjective Global Assessment [PG-SGA]) and clinical characteristics of patients with MM, and to investigate the association between the PG-SGA score before chemotherapy and overall survival in MM patients...
April 2017: Nutrition
https://www.readbyqxmd.com/read/28335642/voriconazole-for-prophylaxis-of-invasive-fungal-infections-after-allogeneic-hematopoietic-stem-cell-transplantation
#18
David I Marks, Qifa Liu, Monica Slavin
Invasive fungal infections (IFIs) following allogeneic hematopoietic stem cell transplantation (alloHSCT) are associated with a high mortality, and accordingly most alloHSCT recipients receive prophylaxis with antifungal agents. Despite some improvement in outcomes of IFIs over time, they continue to represent substantial clinical risk, mortality, and financial burden. Areas covered: We review the main pathogens responsible for IFIs in recipients of alloHSCT, current treatment recommendations, and discuss clinical and economic considerations associated with voriconazole prophylaxis of IFIs in these patients...
March 24, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28334700/single-agent-pixantrone-as-a-bridge-to-autologous-stem-cell-transplantation-in-a-patient-with-refractory-diffuse-large-b-cell-lymphoma
#19
Lorena Appio, Carlo Landoni, Maria La Targia, Vanda Bertolli, Martina Chiarucci, Giovanni Crovetti, Elisabetta Vassenna, Giovanni Serio, Marco Bregni
Aggressive non-Hodgkin lymphoma is associated with poor long-term survival after relapse or resistance to chemotherapy. We report a case of aggressive non-Hodgkin lymphoma refractory to first-line R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) and second-line R-DHAP (rituximab, dexamethasone, cytarabine, and cisplatin) chemotherapy treatments. The patient achieved remission with single-agent pixantrone, and received a consolidation with high-dose BEAM (BCNU, etoposide, cytarabine, and melphalan) chemotherapy and autologous stem cell transplantation...
March 24, 2017: Chemotherapy
https://www.readbyqxmd.com/read/28334384/the-cancer-paradigms-of-mammalian-regeneration-can-mammals-regenerate-as-amphibians
#20
Rachel Sarig, Eldad Tzahor
Regeneration in mammals is restricted to distinct tissues and occurs mainly by expansion and maturation of resident stem cells. During regeneration, even subtle mutations in the proliferating cells may cause a detrimental effect by eliciting abnormal differentiation or malignant transformation. Indeed, cancer in mammals has been shown to arise through deregulation of stem cells maturation, which often leads to a differentiation block and cell transformation. In contrast, lower organisms such as amphibians retain a remarkable regenerative capacity in various organs, which occurs via de- and re-differentiation of mature cells...
March 15, 2017: Carcinogenesis
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