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https://www.readbyqxmd.com/read/28533445/lung-cd4-tissue-resident-memory-t-cells-mediate-adaptive-immunity-induced-by-previous-infection-of-mice-with-bordetella-pertussis
#1
Mieszko M Wilk, Alicja Misiak, Róisín M McManus, Aideen C Allen, Marina A Lynch, Kingston H G Mills
Th1 and Th17 cells have an established role in protective immunity to Bordetella pertussis, but this evidence is based largely on peripheral T cells. There is emerging evidence that local tissue-resident memory T (TRM) cells that accumulate in tissue following mucosal infection may be crucial for long-term immunity. In this study, we examined the role of respiratory CD4 TRM cells in immunity to B. pertussis Natural immunity to B. pertussis induced by infection is considered long lasting and effective at preventing reinfection...
May 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28530671/cardiopulmonary-assessment-of-patients-with-systemic-sclerosis-for-hematopoietic-stem-cell-transplantation-recommendations-from-the-european-society-for-blood-and-marrow-transplantation-autoimmune-diseases-working-party-and-collaborating-partners
#2
REVIEW
D Farge, R K Burt, M-C Oliveira, E Mousseaux, M Rovira, Z Marjanovic, J de Vries-Bouwstra, N Del Papa, R Saccardi, S J Shah, D C Lee, C Denton, T Alexander, D G Kiely, J A Snowden
Systemic sclerosis (SSc) is a rare disabling autoimmune disease with a similar mortality to many cancers. Two randomized controlled trials of autologous hematopoietic stem cell transplantation (AHSCT) for SSc have shown significant improvement in organ function, quality of life and long-term survival compared to standard therapy. However, transplant-related mortality (TRM) ranged from 3-10% in patients undergoing HSCT. In SSc, the main cause of non-transplant and TRM is cardiac related. We therefore updated the previously published guidelines for cardiac evaluation, which should be performed in dedicated centers with expertize in HSCT for SSc...
May 22, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28529613/long-term-outcome-of-inflammatory-breast-cancer-compared-to-non-inflammatory-breast-cancer-in-the-setting-of-high-dose-chemotherapy-with-autologous-hematopoietic-cell-transplantation
#3
Yee Chung Cheng, Yushu Shi, Mei-Jie Zhang, Ruta Brazauskas, Michael T Hemmer, Michael R Bishop, Yago Nieto, Edward Stadtmauer, Lois Ayash, Robert Peter Gale, Hillard Lazarus, Leona Holmberg, Michael Lill, Richard F Olsson, Baldeep Mona Wirk, Mukta Arora, Parameswaran Hari, Naoto Ueno
Introduction: Inflammatory breast cancer (IBC) is a rare aggressive form of breast cancer. It is well known that the long-term survival and progression-free survival of IBC are worse than that of non-IBC. We report the long term outcomes of patients with IBC and non-IBC who had undergone high-dose chemotherapy (HDC) with autologous hematopoietic cell transplantation (AHCT). Methods: All 3387 patients with IBC or non-IBC who underwent HDC with AHCT between1990-2002 and registered with CIBMTR were included in this analysis...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28526759/il-2-high-tissue-resident-t-cells-in-the-human-liver-sentinels-for-hepatotropic-infection
#4
Laura J Pallett, Jessica Davies, Emily J Colbeck, Francis Robertson, Navjyot Hansi, Nicholas J W Easom, Alice R Burton, Kerstin A Stegmann, Anna Schurich, Leo Swadling, Upkar S Gill, Victoria Male, TuVinh Luong, Amir Gander, Brian R Davidson, Patrick T F Kennedy, Mala K Maini
The liver provides a tolerogenic immune niche exploited by several highly prevalent pathogens as well as by primary and metastatic tumors. We have sampled healthy and hepatitis B virus (HBV)-infected human livers to probe for a subset of T cells specialized to overcome local constraints and mediate immunity. We characterize a population of T-bet(lo)Eomes(lo)Blimp-1(hi)Hobit(lo) T cells found within the intrahepatic but not the circulating memory CD8 T cell pool expressing liver-homing/retention markers (CD69(+)CD103(+) CXCR6(+)CXCR3(+))...
May 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28522345/allogeneic-hematopoietic-cell-transplantation-for-older-patients-prognosis-determined-by-disease-risk-index
#5
Fiona He, Qing Cao, Aleksandr Lazaryan, Claudio Brunstein, Shernan Holtan, Erica Warlick, Celalettin Ustun, Brian McClune, Mukta Arora, Armin Rashidi, Craig Eckfeldt, Daniel J Weisdorf, Nelli Bejanyan
The treatment of elderly patients with advanced hematological malignancies has expanded to include reduced-intensity conditioning (RIC) allogeneic hematopoietic cell transplantation (alloHCT) as a potentially curative option. We studied the association between disease risk index (DRI) and clinical outcomes of 196 elderly patients (median age: 64.8 [60-75] years) with hematological malignancies receiving RIC alloHCT (2000-2014). Donors were adult related and unrelated (RD, URD; n = 100, 51.1%) or umbilical cord blood (UCB) (n = 96, 48...
May 15, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28513594/regionally-compartmentalized-resident-memory-t-cells-mediate-naturally-acquired-protection-against-pneumococcal-pneumonia
#6
N Ms Smith, G A Wasserman, F T Coleman, K L Hilliard, K Yamamoto, E Lipsitz, R Malley, H Dooms, M R Jones, L J Quinton, J P Mizgerd
As children age, they become less susceptible to the diverse microbes causing pneumonia. These microbes are pathobionts that infect the respiratory tract multiple times during childhood, generating immunological memory. To elucidate mechanisms of such naturally acquired immune protection against pneumonia, we modeled a relevant immunological history in mice by infecting their airways with mismatched serotypes of Streptococcus pneumoniae (pneumococcus). Previous pneumococcal infections provided protection against a heterotypic, highly virulent pneumococcus, as evidenced by reduced bacterial burdens and long-term sterilizing immunity...
May 17, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28501543/allogeneic-hematopoietic-stem-cell-transplantation-for-adolescents-and-young-adults-with-acute-myeloid-leukemia
#7
Daisuke Tomizawa, Shiro Tanaka, Tadakazu Kondo, Yoshiko Hashii, Yasuyuki Arai, Kazuko Kudo, Takashi Taga, Takahiro Fukuda, Hiroaki Goto, Jiro Inagaki, Katsuyoshi Koh, Kazuteru Ohashi, Yukiyasu Ozawa, Masami Inoue, Koji Kato, Junji Tanaka, Yoshiko Atsuta, Souichi Adachi, Hiroyuki Ishida
Few reports have focused on adolescent and young adult (AYAs) patients with acute myeloid leukemia (AML) treated with hematopoietic stem cell transplantation (HSCT). We performed a retrospective analysis based on data obtained from a Japanese nationwide registration database to compare HSCT outcomes in AYA patients with AML with those in children with AML. An analysis of the 2,973 patients with de novo AML who received allogeneic HSCT from 1990 to 2013 showed inferior 5-year overall survival (OS) (54% vs. 58%, P<0...
May 10, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28499936/ucbt-without-antithymocyte-globulin-results-in-similar-survival-but-better-quality-of-life-compared-with-upbsct-for-the-treatment-of-acute-leukemia-a-retrospective-study-in-china
#8
J Tong, L Xuan, Y L Sun, D P Huang, H L Liu, C C Zheng, X Y Zhu, B L Tang, K D Song, X H Zhang, L Zhang, W Yao, D J Lin, Q F Liu, Z M Sun
While previous studies have demonstrated improved outcomes in umbilical cord blood transplantation (UCBT) by omitting antithymocyte globulin (ATG) in the conditioning regimen, this approach has not been comparatively studied in unrelated peripheral blood stem cell transplantation (UPBSCT). To compare the risks and benefits between UCBT without ATG and UPBSCT in patients with acute leukemia (AL). This was a multicenter retrospective study of 79 patients who underwent UCBT (myeloablative conditioning without ATG) and 96 patients who underwent UPBSCT (myeloablative conditioning with ATG)...
May 9, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28481355/population-pharmacokinetics-of-fludarabine-in-patients-with-aplastic-anemia-and-fanconi-anemia-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#9
E Mohanan, J C Panetta, K M Lakshmi, E S Edison, A Korula, N A Fouzia, A Abraham, A Viswabandya, V Mathews, B George, A Srivastava, P Balasubramanian
Although hematopoietic stem cell transplantation (HSCT) with a conditioning regimen consisting of fludarabine (F-araA) and cyclophosphamide (Cy) is associated with improved outcome in young patients with aplastic anemia (AA) and Fanconi anemia (FA), several factors limit the success of the procedure. We evaluated the population pharmacokinetics (POPPK) of F-araA and its influence on HSCT outcome in patients (n=53) with AA and FA undergoing HSCT. Patients carrying a 5'-UTR polymorphism in NT5E gene (rs2295890 G>C) exhibited significantly lower plasma F-araA clearance compared to those with wild-type genotype (7...
May 8, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28475283/cd69-from-activation-marker-to-metabolic-gatekeeper
#10
REVIEW
Danay Cibrián, Francisco Sánchez-Madrid
CD69 is a membrane-bound, type II C-lectin receptor. It is a classical early marker of lymphocyte activation due to its rapid appearance on the surface of the plasma membrane after stimulation. CD69 is expressed by several subsets of tissue resident immune cells, including resident memory T (TRM) cells and gamma delta (γδ) T cells, and is therefore considered a marker of tissue retention. Recent evidence has revealed that CD69 regulates some specific functions of selected T-cell subsets, determining the migration-retention ratio as well as the acquisition of effector or regulatory phenotypes...
May 5, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28468883/cxcl10-cxcr3-dependent-mobilization-of-hsv-specific-cd8-tem-and-cd8-trm-cells-within-infected-tissues-allows-efficient-protection-against-recurrent-herpes-infection-and-disease
#11
Ruchi Srivastava, Arif A Khan, Sravya Chilukuri, Sabrina A Syed, Tien T Tran, Julie Furness, Elmostafa Bahraoui, Lbachir BenMohamed
Herpes simplex virus type 1 (HSV-1) establishes latency within the sensory neurons of the trigeminal ganglia (TG). HSV-specific memory CD8(+) T cells play a critical role in preventing HSV-1 reactivation from TG and subsequent virus shedding in tears that trigger recurrent corneal herpetic disease. The CXCL10/CXCR3 chemokine pathway promotes T cell immunity to many viral pathogens, but its importance in CD8(+) T cell immunity to recurrent herpes has been poorly elucidated. In this study, we determined how the CXCL10/CXCR3 pathway affects TG- and cornea-resident CD8(+) T cell responses to recurrent ocular herpes infection and disease using a well-established murine model in which HSV-1 reactivation was induced from latently infected TG by UV-B light...
May 3, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28468091/-comparison-of-three-different-types-of-donor-hematopoietic-stem-cell-transplantation-for-intermediate-and-high-risk-myelodysplastic-syndrome
#12
Y Lu, T Wu, Y L Zhao, X Y Cao, D Y Liu, M Xiong, J R Zhou, J P Zhang, Z J Wei, R J Sun, D P Lu
Objective: To investigate three different types of donor hematopoietic stem cell transplantation (HSCT) for intermediate and high-risk myelodysplastic syndrome (MDS) . Methods: Between August 2001 and May 2015, 167 consecutive patients with MDS in intermediate and high-risk who underwent allogeneic HSCT were analyzed retrospectively. Results: With the median follow up of 60 (12-177) months, The total 5-year DFS was 67.8% (95%CI 60.0%-75.6%) . Among three different types of donor, 5-year DFS rates were 68.0% (95%CI 54...
April 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28455383/autologous-hematopoietic-stem-cell-transplantation-in-multiple-sclerosis-a-meta-analysis
#13
Maria Pia Sormani, Paolo A Muraro, Irene Schiavetti, Alessio Signori, Alice Laroni, Riccardo Saccardi, Gian Luigi Mancardi
OBJECTIVE: To summarize the evidence on immunoablative therapy followed by autologous hematopoietic stem cell transplantation (aHSCT) to manage severe and treatment-refractory multiple sclerosis (MS). METHODS: We collected all the published studies of aHSCT in any form of MS from 1995 to 2016, carefully excluding reports that were updated in subsequent studies. Endpoints were transplant-related mortality (TRM), rate of disease progression, and no evidence of disease activity (NEDA) status...
April 28, 2017: Neurology
https://www.readbyqxmd.com/read/28452054/comparing-outcomes-of-matched-related-donor-and-matched-unrelated-donor-hematopoietic-cell-transplants-in-adults-with-b-cell-acute-lymphoblastic-leukemia
#14
Eric Segal, Michael Martens, Hai-Lin Wang, Ruta Brazauskas, Daniel Weisdorf, Brenda M Sandmaier, H Jean Khoury, Marcos de Lima, Wael Saber
BACKGROUND: Allogeneic hematopoietic cell transplantation (HCT) using human leukocyte antigen (HLA)-matched related donors (RDs) and allogeneic HCT using HLA-matched unrelated donors (URDs) produce similar outcomes for patients with acute myelogenous leukemia, whereas the donor source has been reported to be a predictor of outcomes in myelodysplastic syndrome. METHODS: Post-HCT outcomes for 1458 acute lymphoblastic leukemia patients from 2000 to 2011 were analyzed, and RD and URD transplants were compared...
April 27, 2017: Cancer
https://www.readbyqxmd.com/read/28424687/cd103-cd8-t-cells-in-the-toxoplasma-infected-brain-exhibit-a-tissue-resident-memory-transcriptional-profile
#15
Tyler A Landrith, Suhas Sureshchandra, Andrea Rivera, Jessica C Jang, Maham Rais, Meera G Nair, Ilhem Messaoudi, Emma H Wilson
During chronic infection, memory T cells acquire a unique phenotype and become dependent on different survival signals than those needed for memory T cells generated during an acute infection. The distinction between the role of effector and memory T cells in an environment of persistent antigen remains unclear. Here, in the context of chronic Toxoplasma gondii infection, we demonstrate that a population of CD8 T cells exhibiting a tissue-resident memory (TRM) phenotype accumulates within the brain. We show that this population is distributed throughout the brain in both parenchymal and extraparenchymal spaces...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28418771/persistence-in-temporary-lung-niches-a-survival-strategy-of-lung-resident-memory-cd8-t-cells
#16
Shiki Takamura
Respiratory virus infections, such as those mediated by influenza virus, parainfluenza virus, respiratory syncytial virus (RSV), severe acute respiratory syndrome coronavirus (SARS-CoV), rhinovirus, and adenovirus, are responsible for substantial morbidity and mortality, especially in children and older adults. Furthermore, the potential emergence of highly pathogenic strains of influenza virus poses a significant public health threat. Thus, the development of vaccines capable of eliciting long-lasting protective immunity to those pathogens is a major public health priority...
April 18, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28410427/tcr-stimulation-strength-is-inversely-associated-with-establishment-of-functional-brain-resident-memory-cd8-t-cells-during-persistent-viral-infection
#17
Saumya Maru, Ge Jin, Todd D Schell, Aron E Lukacher
Establishing functional tissue-resident memory (TRM) cells at sites of infection is a newfound objective of T cell vaccine design. To directly assess the impact of antigen stimulation strength on memory CD8 T cell formation and function during a persistent viral infection, we created a library of mouse polyomavirus (MuPyV) variants with substitutions in a subdominant CD8 T cell epitope that exhibit a broad range of efficiency in stimulating TCR transgenic CD8 T cells. By altering a subdominant epitope in a nonstructural viral protein and monitoring memory differentiation of donor monoclonal CD8 T cells in immunocompetent mice, we circumvented potentially confounding changes in viral infection levels, virus-associated inflammation, size of the immunodominant virus-specific CD8 T cell response, and shifts in TCR affinity that may accompany temporal recruitment of endogenous polyclonal cells...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28408602/the-preprophase-band-of-microtubules-controls-the-robustness-of-division-orientation-in-plants
#18
Estelle Schaefer, Katia Belcram, Magalie Uyttewaal, Yann Duroc, Magali Goussot, David Legland, Elise Laruelle, Marie-Ludivine de Tauzia-Moreau, Martine Pastuglia, David Bouchez
Controlling cell division plane orientation is essential for morphogenesis in multicellular organisms. In plant cells, the future cortical division plane is marked before mitotic entry by the preprophase band (PPB). Here, we characterized an Arabidopsis trm (TON1 Recruiting Motif) mutant that impairs PPB formation but does not affect interphase microtubules. Unexpectedly, PPB disruption neither abolished the capacity of root cells to define a cortical division zone nor induced aberrant cell division patterns but rather caused a loss of precision in cell division orientation...
April 14, 2017: Science
https://www.readbyqxmd.com/read/28405016/influenza-induced-lung-trm-not-all-memories-last-forever
#19
REVIEW
Natalija Van Braeckel-Budimir, John T Harty
In the light of new findings that lung tissue resident memory CD8+ T cells (Trm) represent major mediators of heterosubtypic immunity against influenza virus, it is of utmost importance to understand the basic biological mechanisms behind induction, formation and maintenance of this cell population. Addressing these important knowledge gaps will potentially inform development of superior, broadly-protective influenza vaccines and new immunization strategies.Immunology and Cell Biology accepted article preview online, 13 April 2017...
April 13, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28396164/dose-escalation-of-total-marrow-irradiation-in-high-risk-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#20
Susanta Hui, Claudio Brunstein, Yutaka Takahashi, Todd DeFor, Shernan G Holtan, Veronika Bachanova, Christopher Wilke, Darren Zuro, Celalettin Ustun, Daniel Weisdorf, Kathryn Dusenbery, Michael R Verneris
Patients with refractory leukemia or minimal residual disease (MRD) at transplantation are at increased risk of relapse. Augmentation of irradiation, especially to sites of disease (ie, bone marrow) is one potential strategy for overcoming this risk. We studied the feasibility of radiation dose escalation in high-risk patients using total marrow irradiation (TMI) in a phase I dose-escalation trial. Four pediatric and 8 adult patients received conditioning with cyclophosphamide and fludarabine in conjunction with image-guided radiation to the bone marrow at 15 Gy and 18 Gy (in 3-Gy fractions), while maintaining the total body irradiation (TBI) dose to the vital organs (lungs, hearts, eyes, liver, and kidneys) at <13...
April 7, 2017: Biology of Blood and Marrow Transplantation
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