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Stem cells transplantation

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https://www.readbyqxmd.com/read/29909154/outcomes-of-relapsed-and-refractory-primary-mediastinal-thymic-large-b-cell-lymphoma-treated-with-second-line-therapy-and-intent-to-transplant
#1
Santosha Vardhana, Paul A Hamlin, Joanna Yang, Andrew Zelenetz, Craig S Sauter, Matthew J Matasar, Andy Ni, Joachim Yahalom, Craig H Moskowitz
Primary mediastinal (thymic) large B-cell lymphoma is a subtype of diffuse large B-cell lymphoma with distinct clinical, molecular and genetic features, many of which overlap with Hodgkin's lymphoma. Increasingly, initial therapy for these patients has employed dose-dense chemotherapy with or without radiation with excellent results. In patients with relapsed and primary refractory disease, outcomes of second-line therapy followed by consolidation with high-dose therapy and autologous stem cell transplantation remains largely undefined...
June 14, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29909153/gastrointestinal-graft-versus-host-disease-is-a-risk-factor-for-post-engraftment-blood-stream-infection-in-allogeneic-hematopoietic-stem-cell-transplant-recipients
#2
Yasuo Mori, Goichi Yoshimoto, Ruriko Nishida, Takeshi Sugio, Kohta Miyawaki, Takahiro Shima, Yoji Nagasaki, Noriko Miyake, Yukiko Harada, Yuya Kunisaki, Kenjiro Kamezaki, Akihiko Numata, Koji Kato, Motoaki Shiratsuchi, Takahiro Maeda, Katsuto Takenaka, Hiromi Iwasaki, Nobuyuki Shimono, Koichi Akashi, Toshihiro Miyamoto
Bloodstream infection (BSI) is a well-known cause of morbidity and mortality in allogeneic hematopoietic stem cell transplantation (allo-HSCT) recipients. Here, we conducted a retrospective study to assess the morbidity, etiology, risk factors, and outcomes of BSI in the post-engraftment period (PE-BSI) following allo-HSCT. Forty-three out of 316 patients (13.6%) developed 57 PE-BSI episodes, in which 62 pathogens were isolated: gram-positive bacteria, gram-negative bacteria, and fungi, respectively, accounted for 54...
June 14, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29909151/hematogones-predict-better-outcome-in-allogeneic-hematopoietic-stem-cell-transplantation-irrespective-of-graft-sources
#3
Takashi Ishio, Junichi Sugita, Takahiro Tateno, Daisuke Hidaka, Eiko Hayase, Souichi Shiratori, Kohei Okada, Hideki Goto, Masahiro Onozawa, Masao Nakagawa, Daigo Hashimoto, Kaoru Kahata, Katsuya Fujimoto, Tomoyuki Endo, Takeshi Kondo, Takanori Teshima
Benign precursors of B lymphocytes, termed hematogones, are observed in the regenerative state of hematopoiesis following chemotherapy or allogeneic hematopoietic stem cell transplantation (allo-HSCT). Previous studies have demonstrated that expansion of hematogones correlates with better clinical outcomes after allo-HSCT. We retrospectively analyzed the association between hematogones and clinical outcomes in 309 consecutive patients undergone allo-HSCT, which was the largest population-based cohort reported so far...
June 14, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29908230/additional-cytogenetic-abnormalities-with-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-on-allogeneic-stem-cell-transplantation-in-the-tyrosine-kinase-inhibitor-era
#4
Yu Akahoshi, Shuichi Mizuta, Hiroaki Shimizu, Naoyuki Uchida, Takahiro Fukuda, Heiwa Kanamori, Makoto Onizuka, Yukiyasu Ozawa, Kazuteru Ohashi, Shuichi Ohta, Tetsuya Eto, Junji Tanaka, Yoshiko Atsuta, Shinichi Kako
Cytogenetic abnormalities are well-known and powerful independent prognostic factor for various hematological disorders. Although the combination of chemotherapy with tyrosine kinase inhibitor (TKI) is now considered the standard of care in patients with Philadelphia chromosome-positive acute lymphoblastic leukemia, little is known about the impact of additional cytogenetic abnormalities (ACAs). Therefore, we retrospectively evaluated 1375 adult patients who underwent their first allogeneic hematopoietic stem cell transplantation in the TKI era...
June 13, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29907809/killer-cell-immunoglobulin-like-receptor-ligand-mismatching-and-outcome-after-haploidentical-transplantation-with-post-transplant-cyclophosphamide
#5
Avichai Shimoni, Myriam Labopin, Francesca Lorentino, Maria Teresa Van Lint, Yener Koc, Zafer Gülbas, Johanna Tischer, Benedetto Bruno, Didier Blaise, Pietro Pioltelli, Boris Afanasyev, Fabio Ciceri, Mohamad Mohty, Arnon Nagler
Haploidentical stem cell transplantation with T cell-replete grafts and post-transplant cyclophosphamide (PTCy) is increasingly used with encouraging outcome. Natural killer (NK) cell alloreactivity, predicted by missing killer cell immunoglobulin-like receptor (KIR) ligands in the recipient that are present in their donor improves outcome of T cell-depleted haploidentical transplants. We explored the role of KIR ligand mismatching in 444 acute leukemia patients after T cell-replete transplants with PTCy. Thirty-seven percent of all patients had KIR ligand mismatching...
June 15, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29907806/final-outcomes-of-escalated-melphalan-280-mg-m-2-with-amifostine-cytoprotection-followed-autologous-hematopoietic-stem-cell-transplantation-for-multiple-myeloma-high-cr-and-vgpr-rates-do-not-translate-into-improved-survival
#6
Parameswaran Hari, Donna E Reece, Jasleen Randhawa, Neal Flomenberg, Dianna S Howard, Ashrof Z Badros, Aaron P Rapoport, Barry R Meisenberg, Joanne Filicko-Ohara, Gordon L Phillips, David H Vesole
The most common preparative regimen for autologous transplantation (ASCT) in myeloma (MM) consists of melphalan 200 mg/m2 (MEL 200). Higher doses of melphalan 220-260 mg/m2 , although relatively well tolerated, have not shown significant improvement in clinical outcomes. Several approaches have been pursued in the past to improve CR rates, including poly-chemotherapy preparative regimens, tandem ASCT, consolidation, and/or maintenance therapy. Since there is a steep dose-response effect for intravenous melphalan, we evaluated an alternative single ASCT strategy using higher-dose melphalan at 280 mg/m2 (MEL 280) with amifostine as a cytoprotectant as the maximum tolerated dose determined in an earlier phase I dose escalation trial...
June 15, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29907552/beyond-maximum-grade-modernising-the-assessment-and-reporting-of-adverse-events-in-haematological-malignancies
#7
REVIEW
Gita Thanarajasingam, Lori M Minasian, Frederic Baron, Franco Cavalli, R Angelo De Claro, Amylou C Dueck, Tarec C El-Galaly, Neil Everest, Jan Geissler, Christian Gisselbrecht, John Gribben, Mary Horowitz, S Percy Ivy, Caron A Jacobson, Armand Keating, Paul G Kluetz, Aviva Krauss, Yok Lam Kwong, Richard F Little, Francois-Xavier Mahon, Matthew J Matasar, María-Victoria Mateos, Kristen McCullough, Robert S Miller, Mohamad Mohty, Philippe Moreau, Lindsay M Morton, Sumimasa Nagai, Simon Rule, Jeff Sloan, Pieter Sonneveld, Carrie A Thompson, Kyriaki Tzogani, Flora E van Leeuwen, Galina Velikova, Diego Villa, John R Wingard, Sophie Wintrich, John F Seymour, Thomas M Habermann
Tremendous progress in treatment and outcomes has been achieved across the whole range of haematological malignancies in the past two decades. Although cure rates for aggressive malignancies have increased, nowhere has progress been more impactful than in the management of typically incurable forms of haematological cancer. Population-based data have shown that 5-year survival for patients with chronic myelogenous and chronic lymphocytic leukaemia, indolent B-cell lymphomas, and multiple myeloma has improved markedly...
June 12, 2018: Lancet Haematology
https://www.readbyqxmd.com/read/29906526/promidis%C3%AE-a-tcr%C3%AE-signature-associated-with-immunodeficiencies-caused-by-v-d-j-recombination-defects
#8
Aurélie Berland, Jérémie Rosain, Sophie Kaltenbach, Vincent Allain, Nizar Mahlaoui, Isabelle Melki, Alice Fievet, Catherine Dubois d'Enghien, Marie Ouachée-Chardin, Laurence Perrin, Nathalie Auger, Funda Erol Cipe, Andrea Finocchi, Figen Dogu, Felipe Suarez, Despina Moshous, Thierry Leblanc, Alexandre Belot, Claire Fieschi, David Boutboul, Marion Malphettes, Lionel Galicier, Eric Oksenhendler, Stéphane Blanche, Alain Fischer, Patrick Revy, Dominique Stoppa-Lyonnet, Capucine Picard, Jean-Pierre de Villartay
- BACKGROUND: V(D)J recombination ensures the diversity of the adaptive immune system. While its complete defect causes Severe Combined Immunodeficiency (T-B-SCID), its suboptimal activity, is associated with a broad spectrum of immune manifestations such as late onset combined immunodeficiency and autoimmunity. The earliest molecular diagnosis of these patients is required to adopt the best therapy strategy, in particular when it involves myelo-ablative conditioning regimen for hematopoietic stem cell transplantation (HSCT)...
June 12, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29906446/prospectively-isolated-tetraspanin-neoblasts-are-adult-pluripotent-stem-cells-underlying-planaria-regeneration
#9
An Zeng, Hua Li, Longhua Guo, Xin Gao, Sean McKinney, Yongfu Wang, Zulin Yu, Jungeun Park, Craig Semerad, Eric Ross, Li-Chun Cheng, Erin Davies, Kai Lei, Wei Wang, Anoja Perera, Kate Hall, Allison Peak, Andrew Box, Alejandro Sánchez Alvarado
Proliferating cells known as neoblasts include pluripotent stem cells (PSCs) that sustain tissue homeostasis and regeneration of lost body parts in planarians. However, the lack of markers to prospectively identify and isolate these adult PSCs has significantly hampered their characterization. We used single-cell RNA sequencing (scRNA-seq) and single-cell transplantation to address this long-standing issue. Large-scale scRNA-seq of sorted neoblasts unveiled a novel subtype of neoblast (Nb2) characterized by high levels of PIWI-1 mRNA and protein and marked by a conserved cell-surface protein-coding gene, tetraspanin 1 (tspan-1)...
June 14, 2018: Cell
https://www.readbyqxmd.com/read/29905937/iron-overload-in-patients-with-myelodysplastic-syndromes-an-updated-overview
#10
REVIEW
Nour M Moukalled, Fuad A El Rassi, Sally N Temraz, Ali T Taher
Myelodysplastic syndromes (MDS) encompass a heterogeneous group of clonal hematopoietic stem cell disorders characterized by a broad clinical spectrum related to ineffective hematopoiesis leading to unilineage or multilineage cytopenias, with a high propensity for transformation to acute myeloid leukemia. Iron overload has been recently identified as one of the important conditions complicating the management of these diverse disorders. The accumulation of iron is mainly related to chronic transfusions; however, evidence suggests a possible role for ineffective erythropoiesis and increased intestinal absorption of iron, related to altered hepcidin and growth differentiation factor-15 levels in the development of hemosiderosis in patients with MDS...
June 15, 2018: Cancer
https://www.readbyqxmd.com/read/29905055/-effect-of-chitosan-porous-scaffolds-combined-with-bone-marrow-mesenchymal-stem-cells-in-repair-of-neurological-deficit-after-traumatic-brain-injury-in-rats
#11
Keke Tan, Xiuxiu Wang, Jun Zhang, Zhigang Zhuang, Tieli Dong
Objective: To investigate the possibility and effect of chitosan porous scaffolds combined with bone marrow mesenchymal stem cells (BMSCs) in repair of neurological deficit after traumatic brain injury (TBI) in rats. Methods: BMSCs were isolated, cultured, and passaged by the method of bone marrow adherent culture. The 3rd generation BMSCs were identified by the CD29 and CD45 surface antigens and marked by 5-bromo-2-deoxyuridine (BrdU). The chitosan porous scaffolds were produced by the method of freeze-drying...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29905054/-research-of-acellular-xenogeneic-nerve-combined-with-adipose-derived-stem-cells-and-platelet-rich-plasma-in-repair-of-rabbit-facial-nerve-injury
#12
Yanna Sun, Rongming Zhang, Xu Mao, Mengshu Zhang
Objective: To investigate the early effects of acellular xenogeneic nerve combined with adipose-derived stem cells (ADSCs) and platelet rich plasma (PRP) in repairing facial nerve injury in rabbits. Methods: The bilateral sciatic nerves of 15 3-month-old male Sprague-Dawley rats were harvested and decellularized as xenografts. The allogeneic ADSCs were extracted from the neck and back fat pad of healthy adult New Zealand rabbits with a method of digestion by collagenase type Ⅰ and the autologous PRP was prepared by two step centrifugation...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29905053/-effect-of-human-adipose-derived-stem-cells-on-pressure-ulcer-healing-in-mouse
#13
Chengliang Deng, Zhiyuan Liu, Yuanzhen Yao, Ruichi Liu, Zairong Wei, Dali Wang
Objective: To investigate the effect of human adipose-derived stem cells (hADSCs) on pressure ulcers in mouse. Methods: The subcutaneous adipose tissue from voluntary donation was harvested. Then the hADSCs were isolated and cultured by mechanical isolation combined with typeⅠcollagenase digestion. The 3rd generation cells were identified by osteogenic, adipogenic, chondrogenic differentiations and flow cytometry. The platelet rich plasma (PRP) from peripheral blood donated by healthy volunteers was prepared by centrifugation...
June 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29905008/the-combined-effects-of-three-dimensional-cell-culture-and-natural-tissue-extract-on-neural-differentiation-of-p19-embryonal-carcinoma-stem-cells
#14
F Azizi, H R Jalil, Z Nasiri, J Moshtaghian, F Esmaeili, A Doostmohammadi, L Shabani, E Ebrahimie
Tissue engineering, as a novel transplantation therapy, aims to create biomaterial scaffolds resembling the extracellular matrix in order to regenerate the damaged tissues. Adding bioactive factors to the scaffold would improve cell-tissue interactions. In this study, the effect of chitosan poly vinyl alcohol nanofibers containing carbon nanotube scaffold with or without active bioglass (BG+ /BG- ), in combination with neonatal rat brain extract (NRBE) on cell viability, proliferation and neural differentiation of P19 embryonic carcinoma (EC) stem cells was investigated...
June 14, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29904927/mesenchymal-stromal-cells-from-amniotic-fluid-are-less-prone-to-senescence-compared-to-those-obtained-from-bone-marrow-an-in-vitro-study
#15
Nicola Alessio, Caterina Pipino, Domitilla Mandatori, Pamela Di Tomo, Angela Ferone, Marco Marchiso, Mariarosa A B Melone, Gianfranco Peluso, Assunta Pandolfi, Umberto Galderisi
Mesenchymal stromal cells (MSCs) are considered to be an excellent source in regenerative medicine. They contain several cell subtypes, including multipotent stem cells. MSCs are of particular interest as they are currently being tested using cell and gene therapies for a number of human diseases. They represent a rare population in tissues; for this reason, they require, before being transplanted, an in vitro amplification. This process may induce replicative senescence, thus affecting differentiation and proliferative capacities...
June 15, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29904417/observation-of-corneal-transplantation-in-peripheral-corneal-disease-postoperatively
#16
Yibing Zhang, Yuan Hu, Xiaodong Li, Xiaoru Shi, Feihong Xu, Hui Jia
The aim of the present study was to investigate the role of the limbal stem cells in corneal epithelial homeostasis in patients with peripheral corneal disease who received corneal transplantation surgery. This retrospective study enrolled 85 patients (85 eyes) with peripheral corneal lesion who underwent corneal transplantation at Department of Ophthalmology in First Hospital of Jilin University, Jilin, China. All patients during each follow-up period were examined for best corrected visual acuity, corneal reconstruction (assessed by slit-lamp biomicroscopy), anterior segment optical coherence tomography, and confocal microscopy...
June 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29904347/stem-cell-derived-exosome-in-cardiovascular-diseases-macro-roles-of-micro-particles
#17
REVIEW
Ye Yuan, Weijie Du, Jiaqi Liu, Wenya Ma, Lai Zhang, Zhimin Du, Benzhi Cai
The stem cell-based therapy has emerged as the promising therapeutic strategies for cardiovascular diseases (CVDs). Recently, increasing evidence suggest stem cell-derived active exosomes are important communicators among cells in the heart via delivering specific substances to the adjacent/distant target cells. These exosomes and their contents such as certain proteins, miRNAs and lncRNAs exhibit huge beneficial effects on preventing heart damage and promoting cardiac repair. More importantly, stem cell-derived exosomes are more effective and safer than stem cell transplantation...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29904127/strategies-to-enhance-the-graft-versus-tumour-effect-after-allogeneic-haematopoietic-stem-cell-transplantation
#18
Eric Wong, Joanne E Davis, Andrew Grigg, Jeff Szer, David Ritchie
Relapse of haematological malignancies after allogeneic haematopoietic stem cell transplant is a major cause of mortality. The immunological mechanisms that may lead to disease relapse may include immunological immaturity prior to reconstitution of the allogeneic immune system, tumour antigen downregulation or promotion of T-cell exhaustion by interactions with the tumour microenvironment. Current therapeutic strategies for post-transplant relapse are limited in their efficacy and alternative approaches are required...
June 14, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29904089/mutational-spectrum-and-prognostic-stratification-of-intermediate-risk-acute-myeloid-leukemia
#19
Sun Wu, Yifeng Dai, Yuan Zhang, Xiufeng Wang, Lihua Wang, Dong Ma, Lingxiu Zhang, Yifan Pang, Yang Jiao, Mingshan Niu, Kailin Xu, Xiaoyan Ke, Jinlong Shi, Zhiheng Cheng, Lin Fu
The mutational spectrum and prognostic stratification of intermediate-risk acute myeloid leukemia (IR-AML), which accounts for a substantial number of AML, are unclear. In order to explore the prognostic significance of the mutational spectrum in IR-AML, 106 IR-AML patients were collected from The Cancer Genome Atlas database. Sixty-two patients underwent chemotherapy-only, forty-four proceeded to allogeneic hematopoietic stem cell transplantation (allo-HSCT). Fifty-five patients had more than five recurrent genetic mutations...
June 15, 2018: Cancer Gene Therapy
https://www.readbyqxmd.com/read/29904072/fludarabine-as-a-cost-effective-adjuvant-to-enhance-engraftment-of-human-normal-and-malignant-hematopoiesis-in-immunodeficient-mice
#20
A Pievani, I M Michelozzi, B Rambaldi, V Granata, A Corsi, F Dazzi, A Biondi, M Serafini
There is still an unmet need for xenotransplantation models that efficiently recapitulate normal and malignant human hematopoiesis. Indeed, there are a number of strategies to generate humanized mice and specific protocols, including techniques to optimize the cytokine environment of recipient mice and drug alternatives or complementary to the standard conditioning regimens, that can be significantly modulated. Unfortunately, the high costs related to the use of sophisticated mouse models may limit the application of these models to studies that require an extensive experimental design...
June 14, 2018: Scientific Reports
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