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Blood and Marrow transplant

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https://www.readbyqxmd.com/read/27913467/transplantation-for-bone-marrow-failure-current-issues
#1
Régis Peffault de Latour
The preferred treatment of idiopathic aplastic anemia (AA) is allogeneic hematopoietic stem cell transplantation (HSCT) from a human leukocyte antigen (HLA)-identical sibling donor. Transplantation from a well-matched unrelated donor (MUD) may be considered for patients without a sibling donor after failure of immunosuppressive therapy, as may alternative transplantation (mismatched, cord blood or haplo-identical HSCT) for patients without a MUD. HSCT may also be contemplated for congenital disorders in cases of pancytopenia or severe isolated cytopenia...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27906795/factors-determining-the-outcome-of-hematopoietic-stem-cell-transplantation-in-patients-with-acute-lymphoblastic-leukemia-at-king-faisal-specialist-hospital-and-research-center-riyadh-saudi-arabia
#2
Suleimman Al-Sweedan, Amal Al-Seraihy, Ali Al-Ahmari, Abdullah Al-Jefri, Viqaruddin Mohammed, Rafat Jafri, Khawar Siddiqui, Mouhab Ayas
Medical records of 82 patients with acute lymphoblastic leukemia (ALL) who underwent hematopoietic cell transplantation (HCT) at our institution from 2005 to 2011 were reviewed. Forty-five patients were male (54.8%). The median age at HCT was 7.46 years (range, 0.98 to 14.31 y), the median time to HCT after diagnosis was 12.56 months. Ten patients were below the age of 1 year (12%). All patients were in complete remission at the time of HCT. In 83 transplants, 64 patients received HCT from human leukocyte antigen-identical-related donors and 19 from other donors...
November 30, 2016: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/27906458/autologous-stem-cell-transplantation-for-adult-acute-myelocytic-leukemia-in-first-remission-better-outcomes-after-busulfan-and-melphalan-compared-with-busulfan-and-cyclophosphamide-a-retrospective-study-from-the-acute-leukemia-working-party-of-the-european
#3
Norbert-Claude Gorin, Myriam Labopin, Tomasz Czerw, Thomas Pabst, Didier Blaise, Pierre-Yves Dumas, Damir Nemet, William Arcese, Silvia Maria Trisolini, Depei Wu, Anne Huynh, Tsila Zuckerman, Ellen Meijer, Seckin Cagirgan, Jan Cornelissen, Mohamed Houhou, Emmanuelle Polge, Mohamad Mohty, Arnon Nagler
BACKGROUND: Autologous stem cell transplantation (ASCT) for adult acute myelogenous leukemia (AML) is a valid therapeutic option for patients with good-risk and intermediate-risk disease. The authors used the registry of the European Society for Blood and Marrow Transplantation to compare combined busulfan and melphalan (BUMEL) with combined busulfan and cyclophosphamide (BUCY) before transplantation. METHODS: From 2005 to 2013, 853 patients with available cytogenetics underwent ASCT in first remission, including 257 after receiving BUMEL and 596 after receiving BUCY...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27905485/b-and-t-lymphocyte-number-and-function-in-hiv-hiv-lymphoma-patients-treated-with-high-dose-chemotherapy-and-autologous-bone-marrow-transplantation
#4
Diego Bertoli, Alessandro Re, Marco Chiarini, Alessandra Sottini, Federico Serana, Viviana Giustini, Aldo M Roccaro, Chiara Cattaneo, Luigi Caimi, Giuseppe Rossi, Luisa Imberti
Combination of anti-retroviral therapy, high-dose chemotherapy (HCT) and autologous stem cell transplantation (ASCT) has led to an improved survival of HIV(+) non-Hodgkin lymphoma (NHL) patients. We compared T- and B-cell subset recovery and related capability to respond to in-vitro stimulation, as well as T-cell repertoire modifications of HIV(+) and HIV(-) NHL patients undergoing HCT and ASCT as first-line consolidation or salvage treatment, using sequential blood samples obtained before and at 3, 6, 12 and 24 months after ASCT...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905003/new-agents-in-hsc-mobilization
#5
REVIEW
Mélanie J Domingues, Susan K Nilsson, Benjamin Cao
Mobilized peripheral blood (PB) is the most common source of hematopoietic stem cells (HSC) for autologous transplantation. Granulocyte colony stimulating factor (G-CSF) is the most commonly used mobilization agent, yet despite its widespread use, a considerable number of patients still fail to mobilize. Recently, a greater understanding of the interactions that regulate HSC homeostasis in the bone marrow (BM) microenvironment has enabled the development of new molecules that mobilize HSC through specific inhibition, modulation or perturbation of these interactions...
November 30, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27899395/functional-definition-of-progenitors-versus-mature-endothelial-cells-reveals-key-soxf-dependent-differentiation-process
#6
Jatin Patel, Elke J Seppanen, Mathieu P Rodero, Ho Yi Wong, Prudence Donovan, Zoltan Neufeld, Nicholas M Fisk, Mathias François, Kiarash Khosrotehrani
BACKGROUND: -During adult life, blood vessel formation is thought to occur via angiogenic processes involving branching from existing vessels. An alternate proposal suggests that neo-vessels form from endothelial progenitors able to assemble the intimal layers. We here aimed to define vessel-resident endothelial progenitors in vivo in a variety of tissues in physiological and pathological situations such as normal aorta, lungs, as well as wound healing, tumors and placenta. METHODS: -Based on protein expression levels of common endothelial markers using flow cytometry, three sub-populations of endothelial cells could be identified among VE-Cadherin+ and CD45- cells...
November 29, 2016: Circulation
https://www.readbyqxmd.com/read/27899358/cytohesin-1-regulates-homing-and-engraftment-of-human-hematopoietic-stem-and-progenitor-cells
#7
Justyna Rak, Katie Foster, Katarzyna Potrzebowska, Mehrnaz Safaee Talkhoncheh, Natsumi Miharada, Karolina Komorowska, Therese Torngren, Anders Kvist, Åke Borg, Lena Svensson, Dominique Bonnet, Jonas Larsson
Adhesion is a key component of hematopoietic stem cell regulation mediating homing and retention to the niche in the bone marrow. Here, using an RNA interference screen, we identify cytohesin 1 (CYTH1) as a critical mediator of adhesive properties in primary human cord-blood derived hematopoietic stem and progenitor cells (HSPCs). Knockdown of CYTH1 disrupted adhesion of HSPC to primary human mesenchymal stroma cells (MSCs). Attachment to fibronectin and ICAM1, two integrin ligands, was severely impaired, and CYTH1 deficient cells showed a reduced integrin β1 activation response, suggesting that CYTH1 mediates integrin-dependent functions...
November 29, 2016: Blood
https://www.readbyqxmd.com/read/27896824/patients-with-the-worst-outcomes-after-paracetamol-acetaminophen-induced-liver-failure-have-an-early-monocytopenia
#8
J K Moore, A C MacKinnon, T Y Man, J R Manning, S J Forbes, K J Simpson
BACKGROUND: Acute liver failure (ALF) is associated with significant morbidity and mortality. Studies have implicated the immune response, especially monocyte/macrophages as being important in dictating outcome. AIM: To investigate changes in the circulating monocytes and other immune cells serially in patients with ALF, relate these with cytokine concentrations, monocyte gene expression and patient outcome. METHODS: In a prospective case-control study in the Scottish Liver Transplant Unit, Royal Infirmary Edinburgh, 35 consecutive patients admitted with paracetamol-induced liver failure (POD-ALF), 10 patients with non-paracetamol causes of ALF and 16 controls were recruited...
November 28, 2016: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27892949/the-ebmt-eln-working-group-recommendations-on-the-prophylaxis-and-treatment-of-gvhd-a-change-control-analysis
#9
T Ruutu, A Gratwohl, D Niederwieser, T de Witte, S van der Werf, A van Biezen, M Mohty, N Kröger, A Rambaldi, E McGrath, A Sureda, G Basak, H Greinix, R F Duarte
In 2013, recommendations for a standardized practice in the prophylaxis and treatment of GvHD were adopted and published by the European Society for Blood and Marrow Transplantation and the European LeukemiaNet. One year later, all 341 European Society for Blood and Marrow Transplantation centres performing allogeneic haematopoietic stem cell transplantation were contacted for a change-control analysis and asked to fill in a questionnaire; 111 centres (33%) responded. Of these, 83% had been aware of the recommendations...
November 28, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27892944/veno-occlusive-disease-sinusoidal-obstruction-syndrome-after-haematopoietic-stem-cell-transplantation-middle-east-north-africa-regional-consensus-on-prevention-diagnosis-and-management
#10
A H Al Jefri, H Abujazar, A Al-Ahmari, A Al Rawas, Z Al Zahrani, A Alhejazi, M A Bekadja, A Ibrahim, M Lahoucine, S Ousia, A Bazarbachi
Veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) of the liver is a serious, early complication of haematopoietic stem cell transplantation (HSCT), severe and very severe forms of which are associated with a high mortality rate. A wide variety of patient, disease and treatment-related risk factors for VOD/SOS have been identified. Several bodies have published recommendations for the diagnosis, prevention and management of VOD/SOS following HSCT. A group of regional experts have developed a consensus statement on the diagnosis, prevention and management of VOD/SOS in the Middle East and North Africa region to help in the management of HSCT patients in the region...
November 28, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27888540/higher-dose-of-cd34-peripheral-blood-stem-cells-is-associated-with-better-survival-after-haploidentical-stem-cell-transplantation-in-pediatric-patients
#11
Yao Chen, Lan-Ping Xu, Kai-Yan Liu, Huan Chen, Yu-Hong Chen, Xiao-Hui Zhang, Yu Wang, Feng-Rong Wang, Wei Han, Jing-Zhi Wang, Chen-Hua Yan, Xiao-Jun Huang
Haploidentical stem cell transplantation (SCT) is increasingly used to treat pediatric patients with malignant or non-malignant hematological disorders. The CD34+ dose of bone marrow or peripheral blood stem cells (PBSCs) has been shown to be an important determinant of the transplant outcome in adults under various preparative regimens. However, knowledge of the effect of the CD34+ dose in pediatric haploidentical SCT is limited. We analyzed the data of 348 pediatric patients (aged 2-18 years) with acute or chronic leukemia, myelodysplastic syndrome (MDS), and other hematological disorders that received a transplant between 2002 and 2012...
November 26, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27888014/nonmyeloablative-haploidentical-bone-marrow-transplantation-with-post-transplant-cyclophosphamide-for-pediatric-and-young-adult-patients-with-high-risk-hematologic-malignancies
#12
Orly R Klein, Jessica Buddenbaum, Noah Tucker, Allen R Chen, Christopher J Gamper, David Loeb, Elias Zambidis, Nicolas J Llosa, Jeffrey S Huo, Nancy Robey, Mary Jo Holuba, Yvette L Kasamon, Shannon R McCurdy, Richard Ambinder, Javier Bolaños-Meade, Leo Luznik, Ephraim J Fuchs, Richard J Jones, Kenneth R Cooke, Heather J Symons
Lower intensity conditioning regimens for haploidentical blood or marrow transplantation (BMT) are safe and efficacious for adult patients with hematologic malignancies. We report data for pediatric/young adult patients with high-risk hematologic malignancies (n=40) treated with nonmyeloablative haploidentical BMT with post-transplantation cyclophosphamide (PT/Cy) from 2003-2015. Patients received a preparative regimen of fludarabine, cyclophosphamide, and total body irradiation. Post-transplant immunosuppression consisted of cyclophosphamide, mycophenolate mofetil, and tacrolimus...
November 22, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27882356/intra-osseous-co-transplantation-of-cd34-selected-umbilical-cord-blood-and-mesenchymal-stromal-cells
#13
Leland Metheny, Saada Eid, Karen Lingas, Jane Reese, Howard Meyerson, Alexander Tong, Marcos de Lima, Alex Y Huang
Human mesenchymal stromal cells (MSC) have been shown to support the growth and differentiation of hematopoietic stem cells (HSC). We hypothesized that intra-osseous (IO) co-transplantation of MSC and umbilical cord blood (UCB) may be effective in improving early HSC engraftment, as IO transplantation has been demonstrated to enhance UCB engraftment in NOD SCID-gamma (NSG) mice. Following non-lethal irradiation (300rads), 6 groups of NSG mice were studied: 1) intravenous (IV) UCB CD34(+) cells, 2) IV UCB CD34(+) cells and MSC, 3) IO UCB CD34(+) cells, 4) IO UCB CD34(+) cells and IO MSC, 5) IO UCB CD34(+) cells and IV MSC, and 6) IV UCB CD34(+) and IO MSC...
2016: Hematol Med Oncol
https://www.readbyqxmd.com/read/27881982/milestones-of-hematopoietic-stem-cell-transplantation-from-first-human-studies-to-current-developments
#14
REVIEW
Mateja Kralj Juric, Sakhila Ghimire, Justyna Ogonek, Eva M Weissinger, Ernst Holler, Jon J van Rood, Machteld Oudshoorn, Anne Dickinson, Hildegard T Greinix
Since the early beginnings, in the 1950s, hematopoietic stem cell transplantation (HSCT) has become an established curative treatment for an increasing number of patients with life-threatening hematological, oncological, hereditary, and immunological diseases. This has become possible due to worldwide efforts of preclinical and clinical research focusing on issues of transplant immunology, reduction of transplant-associated morbidity, and mortality and efficient malignant disease eradication. The latter has been accomplished by potent graft-versus-leukemia (GvL) effector cells contained in the stem cell graft...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27881669/aerobic-exercise-in-humans-mobilizes-hsc-in-an-intensity-dependent-manner
#15
Jeff M Baker, Joshua P Nederveen, Gianni Parise
Hematopoietic stem and progenitor cells are necessary to maintain, repair, and reconstitute the hematopoietic blood cell system. Mobilization of these cells from bone marrow to blood can be greatly increased under certain conditions, one such being exercise. The purpose of this study was to identify the importance of exercise intensity in hematopoietic mobilization, to better understand the mobilization kinetics post exercise, and to determine if exercise is capable of mobilizing several specific populations of hematopoietic cells that have clinical relevance in a transplant setting...
November 23, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27880980/impact-of-total-body-irradiation-on-successful-neutrophil-engraftment-in-unrelated-bone-marrow-or-cord-blood-transplantation
#16
Hideki Nakasone, Fuji Shigeo, Kimikazu Yakushijin, Makoto Onizuka, Akihito Shinohara, Kazuteru Ohashi, Koichi Miyamura, Naoyuki Uchida, Minoko Takanashi, Tatsuo Ichinohe, Yoshiko Atsuta, Takahiro Fukuda, Masao Ogata
Total body irradiation (TBI) has been thought to promote donor cell engraftment in allogeneic hematopoietic cell transplantation (HCT) from alternative donors. However, recent progress in HCT strategies may affect the clinical significance of TBI on neutrophil engraftment. With the use of a Japanese transplant registry database, we analyzed 3933 adult recipients (>15 y.o.) who underwent HCT between 2006 and 2013 from an 8/8 HLA-matched unrelated bone marrow donor (MUD, n=1367), an HLA-mismatched unrelated bone marrow donor (MMUD, n=1102), or unrelated cord blood (CBT, n=1464)...
November 23, 2016: American Journal of Hematology
https://www.readbyqxmd.com/read/27879593/triptolide-reduces-the-required-dose-of-tacrolimus-by-attenuating-inflammation-enhancing-immunosuppression-and-increasing-donor-chimerism-in-a-heterotopic-hindlimb-transplantation-model
#17
Chuan Gu, Fei Liu, Xusong Luo, Xianyu Zhou, Jun Yang, L Scott Levin
BACKGROUND: Induction of tolerance and minimizing the toxicity of immunosuppression are two fundamental goals in vascularized composite allotransplantation. Accumulating data indicate that triptolide is an agent that may have the capacity to suppress inflammation and immunologic rejection. METHODS: A heterotopic hindlimb allotransplantation model from Brown Norway to Lewis rats was established and treated with different doses of tacrolimus combined with or without triptolide...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27876094/nitric-oxide-has-contrasting-age-dependent-effects-on-the-functionality-of-murine-hematopoietic-stem-cells
#18
Sapana Jalnapurkar, Shweta Singh, Moirangthem Ranjita Devi, Lalita Limaye, Vaijayanti Kale
BACKGROUND: The success of hematopoietic stem cell (HSC) transplantation is dependent on the quality of the donor HSCs. Some sources of HSCs display reduced engraftment efficiency either because of inadequate number (e.g., fetal liver and cord blood), or age-related dysfunction (e.g. in older individuals). Therefore, use of pharmacological compounds to improve functionality of HSCs is a forefront research area in hematology. METHODS: Lineage negative (Lin(-)) cells isolated from murine bone marrow or sort-purified Lin(-)Sca-1(+)c-Kit(+)CD34(-) (LSK-CD34(-)) were treated with a nitric oxide donor, sodium nitroprusside (SNP)...
November 22, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27873442/forced-deflation-pulmonary-function-test-a-novel-method-to-evaluate-lung-function-in-infants-and-young-children
#19
Rakesh K Goyal, Azada Ibrahimova, Maria L Escolar, Paul Szabolcs, Mark Vander Lugt, Randy M Windreich, Daniel J Weiner
We describe the safety and feasibility of a forced deflation pulmonary function test (dPFT) in infants and young children. Fifty-two dPFT studies were performed in 26 patients (median age, 1.4 years). Forced vital capacity (FVC) and forced expiratory flow (FEF75 ) were normal in all except one case, but respiratory system compliance (Crs) was reduced in 24% patients. There were no significant differences in pre-blood and marrow transplantation FVC, FEF75 , and Crs between those patients who did and those who did not have posttransplant pulmonary complications...
November 22, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27872737/immunity-to-infections-after-haploidentical-hematopoietic-stem-cell-transplantation
#20
REVIEW
Franco Aversa, Lucia Prezioso, Ilenia Manfra, Federica Galaverna, Angelica Spolzino, Alessandro Monti
The advantage of using a Human Leukocyte Antigen (HLA)-mismatched related donor is that almost every patient who does not have an HLA-identical donor or who urgently needs hematopoietic stem cell transplantation (HSCT) has at least one family member with whom shares one haplotype (haploidentical) and who is promptly available as a donor. The major challenge of haplo-HSCT is intense bi-directional alloreactivity leading to high incidences of graft rejection and graft-versus-host disease (GVHD). Advances in graft processing and pharmacologic prophylaxis of GVHD have reduced these risks and have made haplo-HSCT a viable alternative for patients lacking a matched donor...
2016: Mediterranean Journal of Hematology and Infectious Diseases
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