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https://www.readbyqxmd.com/read/27932186/late-graft-rejection-in-association-with-t-large-granular-lymphocyte-expansion-of-recipient-origin-after-human-leukocyte-antigen-haploidentical-stem-cell-transplantation-a-case-report
#1
N Nakagawa, H Yamazaki, G Aoki, Y Kondo, S Nakao
BACKGROUND: Large granular lymphocyte (LGL) expansion occasionally occurs after allogeneic stem cell transplantation (allo-SCT), and is thought to be a good prognostic sign that is associated with a lower relapse rate. However, there have been no reports of late graft failure (LGF) due to graft rejection in association with oligoclonal LGL expansion. We herein report a case of LGF associated with the transient expansion of recipient-derived T-LGL after allo-SCT. CASE REPORT: A 65-year-old man underwent peripheral blood stem cell transplantation (PBSCT) from his human leukocyte antigen (HLA)-haploidentical son for the treatment of acute myeloid leukemia, which had evolved from a myelodysplastic syndrome (MDS)...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27930381/chronic-localized-fibrosing-leukocytoclastic-vasculitis-associated-with-lymphedema-intralymphatic-and-intravascular-lymphocytosis-and-chronic-myelogenous-leukemia-a-case-report-of-unilateral-erythema-elevatum-diutinum
#2
Juliana Atallah, Juan C Garces, Enrique Loayza, John A Carlson
One of the pathogenic causes of cutaneous inflammatory pseudotumors is chronic localized fibrosing leukocytoclastic vasculitis (CLFLCV), a vasculitic reaction pattern seen in granuloma faciale (GF), a localized vasculitis, and erythema elevatum diutinum (EED), a generalized vasculitis. Patients with myelodysplastic syndromes (MDSs) are at risk for a diverse spectrum of cutaneous neutrophilic dermatoses such as EED. Herein, we report a 74-year-old man who presented with a large ulcerative, fungating tumor affecting the right flexor ankle caused by CLFLCV...
December 7, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27913552/dao-k-ht-tyner-jw-what-s-different-about-atypical-cml-and-chronic-neutrophilic-leukemia-hematology-am-soc-hematol-educ-program-2015-2015-264-271
#3
(no author information available yet)
No abstract text is available yet for this article.
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
#4
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/27891482/treatment-emergent-agranulocytosis-with-skin-and-gingival-lesions-in-a-chronic-lymphocytic-leukemia-patient-a-case-report
#5
Ramesh Amirisetty, Varun Zade, Meenakshi Boddun, Rolly Gupta, Micky Kumari, Hema Suryawanshi
Chronic Lymphocytic Leukaemia (CLL) is a monoclonal lymphoid malignancy characterized by progressive accumulation of small, mature but functionally incompetent neoplastic lymphocytes in the peripheral blood, bone marrow and lymphoid organs. Patients present a variable course and may not require early intervention unlike other malignancies. Patients with rapidly deteriorating blood counts, and organomegaly need treatment. Alkylating agent live Bendamustine combined with Rituximab, anti-CD 20 monoclonal antibody have shown promising results in such patients...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27881485/visualization-of-ligand-induced-gi-protein-activation-in-chemotaxing-cells
#6
Kazuyuki Masuda, Jun-Ichi Kitakami, Tohru Kozasa, Tatsuhiko Kodama, Sigeo Ihara, Takao Hamakubo
Cell migration to chemoattractants is critically important in both normal physiology and the pathogenesis of many diseases. In GPCR-mediated chemotaxis, GPCRs transduce the gradient of an extracellular chemotactic ligand into intracellular responses via the activation of heterotrimeric G proteins. However, ligand-induced G protein activation has not been directly imaged as yet in mammalian chemotaxing cells. We developed a Förster resonance energy transfer (FRET) probe (R10-Gi) by linking the Gi protein α subunit to the regulator of G protein signaling domain...
November 23, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27856368/haploidentical-transplantation-with-post-transplant-cyclophosphamide-for-high-risk-acute-lymphoblastic-leukemia
#7
Samer A Srour, Denái R Milton, Asad Bashey, Amado Karduss-Urueta, Monzr Al Malki, Rizwan Romee, Scott Solomon, Stacey Brown, Michael Slade, Rosendo Perez, Gabriela Rondon, Stephan J Forman, Richard E Champlin, Partow Kebriaei, Stefan O Ciurea
Haploidentical transplantation performed with post-transplantation cyclophosphamide (PTCy)-based graft-versus-host disease (GVHD) prophylaxis has been associated with favorable outcomes for patients with acute myeloid leukemia and lymphomas. However, it remains unclear if such approach is effective for patients with acute lymphoblastic leukemia (ALL). We analyzed outcomes of 109 consecutively treated ALL patients 18 years of age and older at 5 institutions. The median age was 32 years and the median follow-up for survivors was 13 months...
November 14, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27811462/delayed-diagnosis-of-bullous-pyoderma-gangrenosum-with-acute-myelogenous-leukemia
#8
S Sener, G Sarac, N Altunisik, Y Bayindir
Pyoderma gangrenosum (PG) is a rare, but serious neutrophilic dermatosis characterized by recurrent painful cutaneous ulcerations. It is commonly associated with inflammatory bowel disease, rheumatoid arthritis, and hematological malignancies. Because laboratory evaluations and histologic features of PG are nonspecific, diagnosis is based on the clinical features of the ulcer and requires exclusion of other conditions that cause such ulceration. The disease responds to glucocorticoids, immunosuppressives, and anti-inflammatory drugs...
November 2016: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/27811020/impact-of-ctla4-genotype-and-other-immune-response-gene-polymorphisms-on-outcomes-after-single-umbilical-cord-blood-transplantation
#9
Renato Cunha, Marco A Zago, Sergio Querol, Fernanda Volt, Annalisa Ruggeri, Guillermo Sanz, Fabienne Pouthier, Gesine Kogler, José L Vicario, Paola Bergamaschi, Riccardo Saccardi, Carmen H Lamas, Cristina Díaz-de-Heredia, Gerard Michel, Henrique Bittencourt, Marli Tavella, Rodrigo A Panepucci, Francisco Fernandes, Julia Pavan, Eliane Gluckman, Vanderson Rocha
We evaluated the impact of recipient and cord blood unit (CBU) genetic polymorphisms related to immune response on outcomes after unrelated CB transplants (CBT). Pre-transplant DNA samples from 696 CBU with malignant diseases were genotyped for NLRP1, NLRP2, NLRP3, TIRAP/Mal, IL10, REL, TNFRSF1B and CTLA4. HLA compatibility was 6/6 in 10%, 5/6 in 39%, and ≥4/6 in 51% of transplants. Myeloablative conditioning was used in 80% and in vivo T-cell depletion in 81% of cases. The median number of total nucleated cells infused was 3...
November 3, 2016: Blood
https://www.readbyqxmd.com/read/27799353/posaconazole-loaded-leukocytes-as-a-novel-treatment-strategy-targeting-invasive-pulmonary-aspergillosis
#10
Shane R Baistrocchi, Mark J Lee, Melanie Lehoux, Benjamin Ralph, Brendan D Snarr, Robert Robitaille, Donald C Sheppard
BACKGROUND:  Impaired delivery of antifungals to hyphae within necrotic lesions is thought to contribute to therapeutic failure in invasive pulmonary aspergillosis (IPA). We hypothesized that transfusion of leukocytes loaded ex-vivo with the lipophilic antifungal posaconazole could improve delivery of antifungals to the sites of established infection and improve outcome in experimental IPA. METHODS:  The HL-60 leukemia cell line was differentiated to a neutrophil-like phenotype (dHL-60 cells) then exposed to a range of posaconazole concentrations...
October 31, 2016: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27796477/neutrophils-from-chronic-lymphocytic-leukemia-patients-exhibit-an-increased-capacity-to-release-extracellular-traps-nets
#11
Enrique Podaza, Florencia Sabbione, Denise Risnik, Mercedes Borge, María B Almejún, Ana Colado, Horacio Fernández-Grecco, María Cabrejo, Raimundo F Bezares, Analía Trevani, Romina Gamberale, Mirta Giordano
Chronic lymphocytic leukemia (CLL) is characterized by immune defects that contribute to a high rate of infections and autoimmune cytopenias. Neutrophils are the first line of innate immunity and respond to pathogens through multiple mechanisms, including the release of neutrophil extracellular traps (NETs). These web-like structures composed of DNA, histones, and granular proteins are also produced under sterile conditions and play important roles in thrombosis and autoimmune disorders. Here we show that neutrophils from CLL patients are more prone to release NETs compared to those from age-matched healthy donors (HD)...
October 28, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27789332/granulocyte-colony-stimulating-factor-receptor-signaling-in-severe-congenital-neutropenia-chronic-neutrophilic-leukemia-and-related-malignancies
#12
REVIEW
Pankaj Dwivedi, Kenneth D Greis
Granulocyte colony-stimulating factor is a hematopoietic cytokine that stimulates neutrophil production and hematopoietic stem cell mobilization by initiating the dimerization of homodimeric granulocyte colony-stimulating factor receptor. Different mutations of CSF3R have been linked to a unique spectrum of myeloid disorders and related malignancies. Myeloid disorders caused by the CSF3R mutations include severe congenital neutropenia, chronic neutrophilic leukemia, and atypical chronic myeloid leukemia. In this review, we provide an analysis of granulocyte colony-stimulating factor receptor, various mutations, and their roles in the severe congenital neutropenia, chronic neutrophilic leukemia, and malignant transformation, as well as the clinical implications and some perspective on approaches that could expand our knowledge with respect to the normal signaling mechanisms and those associated with mutations in the receptor...
October 24, 2016: Experimental Hematology
https://www.readbyqxmd.com/read/27784378/-expression-of-mir-550a-5p-in-myelodysplastic-syndrome-and-its-prediction-of-target-genes
#13
Ying Huang, Jing Wen, Hong-Ying Li, Xu-Pai Zhang, Dong-Hong Deng, Peng Cheng, Zhi-Gang Peng, Wei-Hua Zhao, Jun Luo, Yuan Long, Zheng-Fang Liu
OBJECTIVE: To investigate the expression of miR-550a-5p in bone marrow of patients with myelodysplastic syndrome (MDS), and to predict its target genes and function by bioinformatics analyses, so as to provide the evidence to furthre explore the role of miR-550a-5p and its target genes in pathogenesis of MDS. METHODS: Real-time PCR was used to detect the expression of miR-550a-5p in 54 MDS patients, 16 acute myeloid leukemia transformed from MDS (sfAML) and 19 healthy controls, and the correlation between the expression of miR-550a-5p and clinical pathologic characteristics of MDS, including chromosome, percentage of marrow blasts, absolute neutrophil count, platelet count and hemoglobin levels were analyzed...
October 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27784360/-diagnostic-value-of-cd64-index-of-neutrophils-for-patients-with-leukemia-combined-with-early-infection
#14
Jian Guo, Jun Jia, Wen-Zhong Che, Wen Yuan, Li-Rui Kong
OBJECTIVE: To analyze the diagnostic value of CD64(+) index of neutrophils for patients with leukemia combined with early infection. METHODS: From June 2014 to June 2015, 100 AL patients admitted in Third People's Hospital of Qinghai province were chosen as AL group, among them 50 AL patients were in infection group and other 50 patients were in non-infection group; at the same time, 200 healthy people were chosen as control group. The sensitivity, specificity and Youden's index of PCT, CRP, Neu% and CD64(+) index in 300 subjects were calculated, and the diagnostic value of different indicators were compared...
October 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/27771742/pre-engraftment-bloodstream-infections-in-acute-leukemia-patients-undergoing-unrelated-cord-blood-transplantation-following-intensified-myeloablative-conditioning-without-atg
#15
Changcheng Zheng, Baolin Tang, Xiaoyu Zhu, Xuhan Zhang, Lei Zhang, Liangquan Geng, Huilan Liu, Zimin Sun
The aim of this study is to investigate the impact of pre-engraftment bloodstream infections (BSIs) on the outcomes in acute leukemia patients undergoing myeloablative cord blood transplantation (CBT). A total of 226 acute leukemia patients who received unrelated CBT were enrolled in this study, and all these patients received an intensified myeloablative conditioning without ATG. Pre-engraftment BSIs occurred in 72 patients (31.9 %), and the median time of onset was 4.5 days after cord blood infusion, BSIs of gram-negative bacilli, and gram-positive cocci comprised of 63...
October 22, 2016: Annals of Hematology
https://www.readbyqxmd.com/read/27769559/increased-bone-marrow-iron-scores-are-strongly-correlated-with-elevated-serum-ferritin-levels-and-poorer-survival-in-patients-with-iron-overload-that-underwent-allogeneic-hematopoietic-stem-cell-transplantation-a-single-center-experience
#16
Serdar Sivgin, Sinan Nazlim, Gokmen Zararsiz, Osman Baspinar, Leylagul Kaynar, Kemal Deniz, Mustafa Cetin, Ali Unal, Bulent Eser
BACKGROUND: Iron overload is one of the most significant problems as a leading cause of death in patients with leukemia and those who underwent allogeneic hematopoietic stem cell transplantation (alloHSCT). METHODS: In the current study, we retrospectively evaluated the bone marrow iron scores (BMIS) in patients who underwent alloHSCT (n = 125). The first available bone marrow biopsy specimens prior to the alloHSCT procedure or date of hospitalization (control group) were assessed in a blinded fashion using a standardized scoring system...
October 2016: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/27764087/optimized-treatment-schedules-for-chronic-myeloid-leukemia
#17
Qie He, Junfeng Zhu, David Dingli, Jasmine Foo, Kevin Zox Leder
Over the past decade, several targeted therapies (e.g. imatinib, dasatinib, nilotinib) have been developed to treat Chronic Myeloid Leukemia (CML). Despite an initial response to therapy, drug resistance remains a problem for some CML patients. Recent studies have shown that resistance mutations that preexist treatment can be detected in a substantial number of patients, and that this may be associated with eventual treatment failure. One proposed method to extend treatment efficacy is to use a combination of multiple targeted therapies...
October 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27759084/vildagliptin-and-its-metabolite-m20-7-induce-the-expression-of-s100a8-and-s100a9-in-human-hepatoma-hepg2-and-leukemia-hl-60-cells
#18
Mitsutoshi Asakura, Fumika Karaki, Hideaki Fujii, Koichiro Atsuda, Tomoo Itoh, Ryoichi Fujiwara
Vildagliptin is a potent, orally active inhibitor of dipeptidyl peptidase-4 (DPP-4) for the treatment of type 2 diabetes mellitus. It has been reported that vildagliptin can cause hepatic dysfunction in patients. However, the molecular-mechanism of vildagliptin-induced liver dysfunction has not been elucidated. In this study, we employed an expression microarray to determine hepatic genes that were highly regulated by vildagliptin in mice. We found that pro-inflammatory S100 calcium-binding protein (S100) a8 and S100a9 were induced more than 5-fold by vildagliptin in the mouse liver...
October 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27759041/cytoplasmic-proliferating-cell-nuclear-antigen-connects-glycolysis-and-cell-survival-in-acute-myeloid-leukemia
#19
Delphine Ohayon, Alessia De Chiara, Nicolas Chapuis, Céline Candalh, Julie Mocek, Jean-Antoine Ribeil, Lamya Haddaoui, Norbert Ifrah, Olivier Hermine, Frédéric Bouillaud, Philippe Frachet, Didier Bouscary, Véronique Witko-Sarsat
Cytosolic proliferating cell nuclear antigen (PCNA), a scaffolding protein involved in DNA replication, has been described as a key element in survival of mature neutrophil granulocytes, which are non-proliferating cells. Herein, we demonstrated an active export of PCNA involved in cell survival and chemotherapy resistance. Notably, daunorubicin-resistant HL-60 cells (HL-60R) have a prominent cytosolic PCNA localization due to increased nuclear export compared to daunorubicin-sensitive HL-60 cells (HL-60S)...
October 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27754578/consistent-quantitative-gene-product-expression-2-antigen-intensities-on-bone-marrow-cells-are-invariant-between-individuals
#20
Michael R Loken, Andrew P Voigt, Lisa Eidenschink Brodersen, Wayne Fritschle, Andrew J Menssen, Soheil Meshinchi, Denise A Wells
Five reference populations in bone marrow specimens were identified by flow cytometry using specific combinations of reagents in order define the variation of gene product expression intensities both within and between individuals. Mature lymphocytes, uncommitted progenitor cells, promyelocytes, mature monocytes and mature neutrophils can be reproducibly identified as distinct clusters of events in heterogeneous, maturing bone marrow specimens. Support Vector Machines were used to identify the reference populations in order to reduce subjective bias in manually defining boundaries of these populations since they were not discretely separated from the remainder of the cells...
November 2016: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
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