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https://www.readbyqxmd.com/read/28731654/validation-of-the-hematopoietic-cell-transplantation-specific-comorbidity-index-in-a-retrospective-cohort-of-children-and-adolescents-who-received-an-allogeneic-transplantation-in-argentina
#1
Carlos M Figueroa Turienzo, Carolina Cernadas, Mariana Roizen, Silvia Pizzi, Raquel Staciuk
INTRODUCTION: Hematopoietic cell transplantationis a therapy with a risk of transplant-related mortality (TRM), which may vary depending on prior comorbidities. The Hematopoietic Cell Transplantation-Specific Comorbidity Index (HCT-CI) is an instrument developed to measure this risk. There are very few reports on its use in pediatrics. The objective of this study was to validate the HCT-CI in a pediatric cohort of allogeneic hematopoietic-cell transplantation recipients in Argentina. POPULATION AND METHODS: Retrospective cohort made up of 140 transplant patients at Hospital J...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28716387/respiratory-virus-prior-to-hematopoietic-cell-transplantation-is-associated-with-allo-immune-mediated-lung-syndromes
#2
Birgitta Versluys, Marc Bierings, Jean Luc Murk, Tom Wolfs, Caroline Lindemans, Kors Vd Ent, Jaap Jan Boelens
BACKGROUND: Allo-immune mediated lung syndromes (allo-LS) are life-threatening complications after hematopoietic cell transplantation (HCT). Respiratory virus (RV) has been suggested to play a role in the pathogenesis. OBJECTIVE: We studied the relation between RV-DNA/RNA detection in upper/lower airway before HCT and the occurrence of allo-LS. METHODS: We retrospectively analyzed all HCT recipients between 2004 and 2014, in whom Real-Time PCR for RV was done from Nasal-Pharyngeal-Aspirates (NPA) and Broncho-Alveolar- Lavage (BAL) before HCT...
July 14, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28714465/enhanced-anti-tumour-immunity-requires-the-interplay-between-resident-and-circulating-memory-cd8-t-cells
#3
Michel Enamorado, Salvador Iborra, Elena Priego, Francisco J Cueto, Juan A Quintana, Sarai Martínez-Cano, Ernesto Mejías-Pérez, Mariano Esteban, Ignacio Melero, Andrés Hidalgo, David Sancho
The goal of successful anti-tumoural immunity is the development of long-term protective immunity to prevent relapse. Infiltration of tumours with CD8(+) T cells with a resident memory (Trm) phenotype correlates with improved survival. However, the interplay of circulating CD8(+) T cells and Trm cells remains poorly explored in tumour immunity. Using different vaccination strategies that fine-tune the generation of Trm cells or circulating memory T cells, here we show that, while both subsets are sufficient for anti-tumour immunity, the presence of Trm cells improves anti-tumour efficacy...
July 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28692028/in-search-of-the-optimal-platform-for-post-allogeneic-sct-immunotherapy-in-relapsed-multiple-myeloma-a-systematic-review
#4
REVIEW
R Oostvogels, S M U Venema, M de Witte, R Raymakers, J Kuball, N Kröger, M C Minnema
Allogeneic stem cell transplantation (allo-SCT) has the potential to induce sustained remissions in patients with multiple myeloma (MM). Currently, allo-SCT is primarily performed in high-risk MM patients, most often in the setting of early relapse after first-line therapy with autologous SCT. However, the implementation of allo-SCT for MM is jeopardized by high treatment-related mortality (TRM) rates as well as high relapse rates. In this systematic review, we aimed to identify a safe allo-SCT strategy that has optimal 1-year results regarding mortality, relapse and severe GvHD, creating opportunities for post-transplantation strategies to maintain remissions in the high-risk group of relapsed MM patients...
July 10, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28691152/reduced-bucy-2-and-g-csf-primed-bone-marrow-associates-with-low-graft-versus-host-disease-and-transplant-related-mortality-in-allogeneic-hsct
#5
Eucario Leon Rodriguez, Monica M Rivera Franco, Sandra I Perez Alvarez
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the ideal treatment for several diseases. However, the morbidity and mortality associated with the procedure might limit its widespread use; therefore, we implemented reduced BUCY2 as conditioning method along with the use of G-CSF-primed bone marrow (G-BM) in order to reduce complications, including graft-versus-host-disease (GVHD), and to improve survival in these patients. An analysis of transplant characteristics, complications, and survival of patients undergoing an allo-HSCT using this conditioning regimen (busulfan 12 mg/kg and cyclophosphamide 80 mg/kg) plus G-BM was performed...
July 9, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28684371/pharmacokinetics-and-model-based-dosing-to-optimize-fludarabine-therapy-in-pediatric-hematopoietic-cell-transplant-recipients
#6
Vijay Ivaturi, Christopher C Dvorak, Danna Chan, Tao Liu, Morton J Cowan, Justin Wahlstrom, Melisa Stricherz, Cathryn Jennissen, Paul J Orchard, Jakub Tolar, Sung-Yun Pai, Liusheng Huang, Francesca Aweeka, Janel Long-Boyle
A prospective multi-center study was conducted to characterize the pharmacokinetics (PK) and pharmacodynamics (PD) of fludarabine plasma (f-ara-a) and intracellular triphosphate (f-ara-ATP) in children undergoing hematopoietic cell transplantation (HCT) and receiving fludarabine with conditioning. Plasma and peripheral blood mononuclear cells (PBMCs) were collected over the course of therapy for quantitation of f-ara-a and f-ara-ATP. Nonlinear mixed effects modeling was used to develop the PK model, including identification of covariates impacting drug disposition...
July 3, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28676100/superior-gvhd-free-relapse-free-survival-for-g-bm-to-g-pbsc-grafts-is-associated-with-higher-mdscs-content-in-allografting-for-patients-with-acute-leukemia
#7
Qian Fan, Hui Liu, Xinquan Liang, Ting Yang, Zhiping Fan, Fen Huang, Yiwen Ling, Xin Liao, Li Xuan, Na Xu, Xiaojun Xu, Jieyu Ye, Qifa Liu
BACKGROUND: Granulocyte colony-stimulating factor (G-CSF)-mobilized peripheral blood stem cells (G-PBSC) has largely replaced unstimulated bone marrow (un-BM) for allografting because of accelerated engraftment, but with a higher morbidity and mortality of graft-versus-host-disease (GVHD). Recent studies suggested that G-CSF-primed BM (G-BM) had similar engraftment but lower morbidity and mortality of GVHD comparing to G-PBSC. A prospective, randomized, multicenter study was conducted to compare G-BM with G-PBSC as the grafts in allogeneic hematopoietic stem cell transplantation (allo-HSCT) for acute leukemia in first complete remission (CR1)...
July 4, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28675769/outcomes-of-allogeneic-stem-cell-transplantation-in-patients-with-paroxysmal-nocturnal-hemoglobinuria-with-or-without-aplastic-anemia
#8
Sung-Eun Lee, Sung Soo Park, Young-Woo Jeon, Jae-Ho Yoon, Byung-Sik Cho, Ki-Sung Eom, Yoo-Jin Kim, Seok Lee, Chang-Ki Min, Hee-Je Kim, Seok-Goo Cho, Dong-Wook Kim, Woo-Sung Min, Jong Wook Lee
OBJECTIVE: The aim of this study was to evaluate the long-term outcomes of allogeneic stem cell transplantation (SCT) in patients with paroxysmal nocturnal hemoglobinuria (PNH) with or without aplastic anemia (AA). METHOD: A total of 33 patients with PNH clones who underwent allogeneic SCT were analyzed. RESULTS: After a median follow-up of 57 months (range, 6.0-151.3), the 5-year estimated overall survival rate was 87.9 ± 5.7%. Four patients died of transplant-related mortality (TRM)...
July 4, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28674027/increasing-use-of-allogeneic-hematopoietic-cell-transplantation-in-patients-age-70-years-and-older-in-the-united-states
#9
Lori Muffly, Marcelo C Pasquini, Michael Martens, Ruta Brazauskas, Xiaochun Zhu, Kehinde Adekola, Mahmoud Aljurf, Karen K Ballen, Ashish Bajel, Frederic Baron, Minoo Battiwalla, Amer Beitinjaneh, Jean-Yves Cahn, Mathew Carabasi, Yi-Bin Chen, Saurabh Chhabra, Stefan Ciurea, Edward Copelan, Anita D'Souza, John Edwards, James Foran, Cesar O Freytes, Henry C Fung, Robert Peter Gale, Sergio Giralt, Shahrukh K Hashmi, Gerhard C Hildebrandt, Vincent Ho, Ann Jakubowski, Hillard Lazarus, Marlise R Luskin, Rodrigo Martino, Richard Maziarz, Philip McCarthy, Taiga Nishihori, Rebecca Olin, Richard F Olsson, Attaphol Pawarode, Edward Peres, Andrew R Rezvani, David Rizzieri, Bipin N Savani, Harry C Schouten, Mitchell Sabloff, Matthew Seftel, Sachiko Seo, Mohamed L Sorror, Jeff Szer, Baldeep M Wirk, William A Wood, Andrew Artz
PURPOSE: To evaluate trends and outcomes of allogeneic HCT in adults ≥70 years with hematologic malignancies across the United States (US). PATIENTS AND METHODS: Adults 70 years and older with a hematologic malignancy undergoing first allogeneic HCT in the US between 2000 and 2013 and reported to the CIBMTR were eligible. Transplant utilization and transplant outcomes including overall survival (OS), progression-free survival (PFS), and transplant-related mortality (TRM) were studied...
July 3, 2017: Blood
https://www.readbyqxmd.com/read/28659478/enfuvirtide-t20-based-lipopeptide-is-a-potent-hiv-1-cell-fusion-inhibitor-implication-for-viral-entry-and-inhibition
#10
Xiaohui Ding, Xiujuan Zhang, Huihui Chong, Yuanmei Zhu, Huamian Wei, Xiyuan Wu, Jinsheng He, Xinquan Wang, Yuxian He
The peptide drug Enfuvirtide (T20) is the only viral fusion inhibitor used in combination therapy of HIV-1 infection, but it has a relatively low antiviral activity and easily induces drug-resistance. Emerging studies demonstrate that lipopeptide-based fusion inhibitors have greatly improved antiviral potency and in vivo stability, such as LP-11 and LP-19 that mainly target the gp41 pocket site. In this study, we focused on developing a T20-based lipopeptide inhibitor that lacks pocket-binding sequence and targets a different site...
June 28, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28650455/clinical-impact-of-nk-cell-reconstitution-after-reduced-intensity-conditioned-unrelated-cord-blood-transplantation-in-patients-with-acute-myeloid-leukemia-analysis-of-a-prospective-phase-ii-multicenter-trial-on-behalf-of-the-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-greffe-de
#11
S Nguyen, A Achour, L Souchet, S Vigouroux, P Chevallier, S Furst, A Sirvent, J-O Bay, G Socié, P Ceballos, A Huynh, J Cornillon, S Francois, F Legrand, I Yakoub-Agha, G Michel, N Maillard, G Margueritte, S Maury, M Uzunov, C-E Bulabois, M Michallet, L Clement, C Dauriac, K Bilger, J Lejeune, V Béziat, V Rocha, B Rio, S Chevret, V Vieillard
Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28628092/tissue-resident-memory-features-are-linked-to-the-magnitude-of-cytotoxic-t-cell-responses-in-human-lung-cancer
#12
Anusha-Preethi Ganesan, James Clarke, Oliver Wood, Eva M Garrido-Martin, Serena J Chee, Toby Mellows, Daniela Samaniego-Castruita, Divya Singh, Grégory Seumois, Aiman Alzetani, Edwin Woo, Peter S Friedmann, Emma V King, Gareth J Thomas, Tilman Sanchez-Elsner, Pandurangan Vijayanand, Christian H Ottensmeier
Therapies that boost the anti-tumor responses of cytotoxic T lymphocytes (CTLs) have shown promise; however, clinical responses to the immunotherapeutic agents currently available vary considerably, and the molecular basis of this is unclear. We performed transcriptomic profiling of tumor-infiltrating CTLs from treatment-naive patients with lung cancer to define the molecular features associated with the robustness of anti-tumor immune responses. We observed considerable heterogeneity in the expression of molecules associated with activation of the T cell antigen receptor (TCR) and of immunological-checkpoint molecules such as 4-1BB, PD-1 and TIM-3...
August 2017: Nature Immunology
https://www.readbyqxmd.com/read/28620836/sox2-immunity-and-tissue-resident-memory-in-children-and-young-adults-with-glioma
#13
Juan C Vasquez, Anita Huttner, Lin Zhang, Asher Marks, Amy Chan, Joachim M Baehring, Kristopher T Kahle, Kavita M Dhodapkar
Therapies targeting immune checkpoints are effective in tumors with a high mutation burden that express multiple neo-antigens. However, glial tumors including those seen in children carry fewer mutations and there is an unmet need to identify new antigenic targets of anti-tumor immunity. SOX2 is an embryonal stem cell antigen implicated in the biology of glioma initiating cells. Expression of SOX2 by pediatric glial tumors and the capacity of the immune system in these patients to recognize SOX2 has not been previously studied...
June 15, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28581467/directionality-of-non-permissive-hla-dpb1-t-cell-epitope-group-mismatches-does-not-improve-clinical-risk-stratification-in-8-8-matched-unrelated-donor-hematopoietic-cell-transplantation
#14
K Fleischhauer, K W Ahn, H L Wang, L Zito, P Crivello, C Müller, M Verneris, B E Shaw, J Pidala, M Oudshorn, S J Lee, S R Spellman
In 8/8 HLA-matched unrelated donor (UD) hematopoietic cell transplants (HCT), HLA-DPB1 mismatches between alleles from different T-cell epitope (TCE) groups (non-permissive mismatches) are associated with significantly higher risks of mortality compared with those between alleles from the same TCE group (permissive mismatches); however, the relevance of mismatch directionality, that is (host vs graft (uni-directional HvG), graft vs host (uni-directional GvH) or both (bi-directional) in the non-permissive setting is unknown...
June 5, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28573482/glycomyces-xinjiangensis-sp-nov-a-novel-actinomycete-isolated-from-a-hypersaline-habitat
#15
Tong-Wei Guan, Hui-Ping Xiang, Peng-Hao Wang, Lei Tian, Shu-Kun Tang, Shun-Xian Zhao, Xi-Chao Zhang
A novel actinomycete strain, designated XHU 5301(T), was isolated from a hypersaline habitat, China. The strain was aerobic, Gram-stain positive and the optimum NaCl concentration for growth was 7-9% (w/v). Phylogenetic analysis based on an almost-complete 16S rRNA gene sequence of strain XHU 5301(T) showed that the organism was most closely related to Glycomyces halotolerans TRM 40137(T) (96.0%). The whole-cell sugar pattern consisted of glucose and galactose. The predominant menaquinone was MK-10(H4), MK-10(H2), and MK-9(H4)...
June 1, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28556917/decreased-relapsed-rate-and-treatment-related-mortality-contribute-to-improved-outcomes-for-pediatric-acute-myeloid-leukemia-in-successive-clinical-trials
#16
Thomas B Alexander, Lei Wang, Hiroto Inaba, Brandon M Triplett, Stanley Pounds, Raul C Ribeiro, Ching-Hon Pui, Jeffrey E Rubnitz
BACKGROUND: Outcomes for children with acute myeloid leukemia (AML) have improved over the past 20 years even though the medications used for induction therapy have not changed. METHODS: This study analyzed data from patients with AML who were enrolled in successive protocols (AML97 and AML02) to determine the contributors to the improved outcomes of the latter clinical trial. RESULTS: There were significant improvements in 5-year overall survival (48...
May 30, 2017: Cancer
https://www.readbyqxmd.com/read/28549771/calcineurin-and-mtor-inhibitor-free-post-transplantation-cyclophosphamide-and-bortezomib-combination-for-graft-versus-host-disease-prevention-after-peripheral-blood-allogeneic-hematopoietic-stem-cell-transplantation-a-phase-i-ii-study
#17
A Samer Al-Homsi, Kelli Cole, Marlee Muilenburg, Austin Goodyke, Muneer Abidi, Ulrich Duffner, Stephanie Williams, Jessica Parker, Aly Abdel-Mageed
Graft-versus-host disease (GVHD) hampers the utility of allogeneic hematopoietic stem cell transplantation (AHSCT). The purpose of this study was to determine the feasibility, safety, and efficacy of a novel combination of post-transplantation cyclophosphamide (PTC) and bortezomib for the prevention of GVHD. Patients undergoing peripheral blood AHSCT for hematological malignancies after reduced-intensity conditioning with grafts from HLA-matched related or unrelated donors were enrolled in a phase I/II clinical trial...
May 23, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28546074/outcomes-from-autologous-hematopoietic-cell-transplantation-versus-chemotherapy-alone-for-the-management-of-light-chain-amyloidosis
#18
Oluchi Oke, Tarsheen Sethi, Stacey Goodman, Sharon Phillips, Ilka Decker, Samuel Rubinstein, Beatrice Concepcion, Sarah Horst, Madan Jagasia, Adetola Kassim, Shelton L Harrell, Anthony Langone, Daniel Lenihan, Kyle T Rawling, David Slosky, Robert Frank Cornell
Light chain amyloidosis (AL) results in tissue deposition of misfolded proteins, causing organ dysfunction. In an era of modern therapies, such as bortezomib, reassessment of the benefit of autologous hematopoietic cell transplantation (AHCT) should be considered. In this study, we compared outcomes between patients with AL receiving chemotherapy alone (CT) and those undergoing AHCT. Seventy-four patients with AL were analyzed retrospectively. Two cohorts of patients were studied, those receiving CT (n = 31) and those undergoing AHCT (n = 43)...
May 22, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28537262/induction-of-resident-memory-t-cells-enhances-the-efficacy-of-cancer-vaccine
#19
Mevyn Nizard, Hélène Roussel, Mariana O Diniz, Soumaya Karaki, Thi Tran, Thibault Voron, Estelle Dransart, Federico Sandoval, Marc Riquet, Bastien Rance, Elie Marcheteau, Elizabeth Fabre, Marion Mandavit, Magali Terme, Charlotte Blanc, Jean-Baptiste Escudie, Laure Gibault, Françoise Le Pimpec Barthes, Clemence Granier, Luis C S Ferreira, Cecile Badoual, Ludger Johannes, Eric Tartour
Tissue-resident memory T cells (Trm) represent a new subset of long-lived memory T cells that remain in tissue and do not recirculate. Although they are considered as early immune effectors in infectious diseases, their role in cancer immunosurveillance remains unknown. In a preclinical model of head and neck cancer, we show that intranasal vaccination with a mucosal vector, the B subunit of Shiga toxin, induces local Trm and inhibits tumour growth. As Trm do not recirculate, we demonstrate their crucial role in the efficacy of cancer vaccine with parabiosis experiments...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28537249/airway-t-cells-protect-against-rsv-infection-in-the-absence-of-antibody
#20
E Kinnear, L Lambert, J U McDonald, H M Cheeseman, L J Caproni, J S Tregoning
Tissue resident memory T (Trm) cells act as sentinels and early responders to infection. Respiratory syncytial virus (RSV)-specific Trm cells have been detected in the lungs after human RSV infection, but whether they have a protective role is unknown. To dissect the protective function of Trm cells, BALB/c mice were infected with RSV; infected mice developed antigen-specific CD8(+) Trm cells (CD103(+)/CD69(+)) in the lungs and airways. Intranasally transferring cells from the airways of previously infected animals to naïve animals reduced weight loss on infection in the recipient mice...
May 24, 2017: Mucosal Immunology
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