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Acute lymphoid leukemia

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https://www.readbyqxmd.com/read/29438091/a-phase-i-dose-escalation-study-of-clofarabine-in-patients-with-relapsed-or-refractory-low-grade-or-intermediate-grade-b-cell-or-t-cell-lymphoma
#1
Francine Marie Foss, Terri Parker
LESSONS LEARNED: Clofarabine can be active in relapsed and refractory lymphoid malignancies on a weekly dosing schedule.Responses were seen in patients with T-cell lymphomas, including cutaneous T-cell lymphoma, but not in patients with aggressive B-cell lymphomas. BACKGROUND: Clofarabine is a second-generation purine nucleoside analog currently approved for the treatment of pediatric relapsed or refractory acute lymphoblastic leukemia. In adults, clofarabine has been investigated in several phase I and II trials as a single agent and in combination for relapsed or refractory acute leukemia...
February 7, 2018: Oncologist
https://www.readbyqxmd.com/read/29435192/microrna-expression-and-activity-in-t-cell-acute-lymphoblastic-leukemia
#2
REVIEW
Fang Ye
T-cell acute lymphoblastic leukemia (T-ALL) is a lymphoid malignancy caused by the oncogenic transformation of immature T-cell progenitors. Many biologically relevant genetic and epigenetic alterations have been identified as driving factors for this transformation. Recently, microRNAs (miRNAs) have been shown to influence various leukemias, including T-ALL. Aberrant expression of miRNAs can function as either oncogenes or tumor suppressors in T-ALL through the regulation of cell migration, invasion, proliferation, apoptosis, and chemoresistance...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29427203/cardiovascular-disease-incidence-in-adolescent-and-young-adult-cancer-survivors-a-retrospective-cohort-study
#3
Theresa H M Keegan, Lawrence H Kushi, Qian Li, Ann Brunson, X Chawla, Helen K Chew, Marcio Malogolowkin, Ted Wun
PURPOSE: Few population-based studies have focused on cardiovascular disease (CVD) risk in adolescent and young adult (AYA; 15-39 years) cancer survivors and none have considered whether CVD risk differs by sociodemographic factors. METHODS: Analyses focused on 79,176 AYA patients diagnosed with 14 first primary cancers in 1996-2012 and surviving > 2 years after diagnosis with follow-up through 2014. Data were obtained from the California Cancer Registry and State hospital discharge data...
February 9, 2018: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/29423088/identification-of-survivin-as-a-promising-target-for-the-immunotherapy-of-adult-b-cell-acute-lymphoblastic-leukemia
#4
Laurie Freire Boullosa, Payalben Savaliya, Stephanie Bonney, Laurence Orchard, Hannah Wickenden, Cindy Lee, Evelien Smits, Alison H Banham, Ken I Mills, Kim Orchard, Barbara-Ann Guinn
B-cell acute lymphoblastic leukemia (B-ALL) is a rare heterogeneous disease characterized by a block in lymphoid differentiation and a rapid clonal expansion of immature, non-functioning B cells. Adult B-ALL patients have a poor prognosis with less than 50% chance of survival after five years and a high relapse rate after allogeneic haematopoietic stem cell transplantation. Novel treatment approaches are required to improve the outcome for patients and the identification of B-ALL specific antigens are essential for the development of targeted immunotherapeutic treatments...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29416770/hprt1-activity-loss-is-associated-with-resistance-to-thiopurine-in-all
#5
Fan Yang, Houshun Fang, Dan Wang, Yao Chen, Yonggong Zhai, Bin-Bing S Zhou, Hui Li
Acute lymphoblastic leukemia (ALL) is an aggressive hematological tumor resulting from the malignant transformation of lymphoid progenitors. Thiopurine is a widely used drug in the maintaining treatment of ALL. After a period of chemotherapy, 20% of pediatric patients and over 50% of adult patients will relapse. To investigate the mechanisms of drug resistance in vitro, we established the thiopurine resistant cell lines Reh-6MPR (6-MP Resistant cell) and Reh-6TGR (6-TG Resistant cell) by stepwise selection of the ALL cell line Reh...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29415769/incidence-of-acute-lymphocytic-leukemia-in-calgary-alberta-canada-a-retrospective-cohort-study
#6
Rayven Snodgrass, Leonard T Nguyen, Maggie Guo, Marcus Vaska, Christopher Naugler, Fariborz Rashid-Kolvear
OBJECTIVE: Acute lymphocytic leukemia (ALL) is a rare malignant neoplasm that develops from abnormal lymphoid stem cells. ALL incidence is highest among children and declines towards adolescence. There is limited data on the epidemiology of ALL, especially in Canada. This retrospective cohort study used patient data from the Calgary Laboratory Services Cancer Cytogenetics Laboratory to report the incidence rate of ALL in Calgary, Alberta, Canada. New cases of ALL were identified for the 5-year period of January 1, 2011 until December 31, 2015...
February 7, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29408457/the-pathogenic-role-of-mef2d-ss18-fusion-gene-in-b-cell-acute-lymphoblastic-leukemia
#7
Ming Zhang, Dongdong Mao, Weina Zhang
B-cell acute lymphoblastic leukemia (B-ALL) is characterized by various fusion genes resulted from chromosome translocations, and MEF2D related fusions are recently identified in a B-ALL subtype with relatively worse survival. In this study, we investigated the pathogenic role of MEF2D-SS18 fusion in B-ALL. The recombinant retrovirus and lentivirus plasmids containing the MEF2D-SS18 transcript were constructed for functional studies. Immuno-fluorescent staining presented the nuclear localization of MEF2D-SS18...
February 2, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29407586/8q24-myc-rearrangement-is-a-recurrent-cytogenetic-abnormality-in-blastic-plasmacytoid-dendritic-cell-neoplasms
#8
Prajwal C Boddu, Sa A Wang, Naveen Pemmaraju, Zhenya Tang, Shimin Hu, Shaoying Li, Jie Xu, L Jeffrey Medeiros, Guilin Tang
8q24/MYC rearrangements resulting in MYC overexpression occur most frequently in lymphoid neoplasms. MYC rearrangements rarely have been described in blastic plasmacytoid dendritic cell neoplasm (BPDCN). Over an 8-year period in our hospital, 5 of 41 (12%) patients with BPDCN were shown 8q24/MYC rearrangements, including 2 with t(6;8)(p21;q24), 1 with t(8;14)(q24;q32), 1 with t(X;8)(q24;q24), and 1 with t(3;8)(p25;q24). 8q24/MYC rearrangement was present in the stemline in 4 patients and in the sideline in one; the latter was a patient with primary myelofibrosis who then developed BPDCN...
February 2, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29394974/proteomic-profile-of-lymphoid-leukemia
#9
Amer Abdulrahman Almaiman
Lymphoid (or lymphocytic/lymphoblastic) leukemia, one of two major types of leukemias (lymphoid and myeloid), is divided into two subtypes, acute lymphoid leukemia (ALL) and chronic lymphocytic leukemia (CLL), depending on the maturation stage and speed of multiplication of the bone marrow lymphocytes. Early diagnosis and treatment can make the difference between life and death. Advancements in the field of proteomics may allow the development of early biomarkers and more effective agents to combat both these types of cancer, and to better understand the underlying mechanisms of the disease...
February 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29389522/wnt-signaling-in-hematological-malignancies
#10
Stephanie Grainger, David Traver, Karl Willert
Leukemia and lymphoma are a wide encompassing term for a diverse set of blood malignancies that affect people of all ages and result in approximately 23,000 deaths in the United States per year (Siegel RL, Miller KD, Jemal A. Cancer statistics, 2016. CA Cancer J Clin. 2016;66(1):7-30.). Hematopoietic stem cells (HSCs) are tissue-specific stem cells at the apex of the hierarchy that gives rise to all of the terminally differentiated blood cells, through progressively restricted progenitor populations, a process that is known to be Wnt-responsive...
January 2018: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29384211/the-importance-of-mirnas-and-epigenetics-in-acute-lymphoblastic-leukemia-prognosis
#11
REVIEW
Reza Ranjbar, Ansar Karimian, Masoud Aghai, Mehdi Tourani, Seyed Mostafa Mir, Javid Sabour, Farhad Jadidi, Bahman Yousefi
Acute lymphoblastic leukemia (ALL), one of the most common malignant human disorders, originates in different important genetic lesions in T-cell or B-cell progenitors. ALL is a malignant lymphoid progenitor with peak prevalence in children (2-5 years). The rate of survival when one is suffering from ALL depends on various agents including the age of the patient, responses to anti-leukemic therapy, and cell biology. miRNAs and epigenetics are important regulatory factors in the expression of genes. miRNAs are noncoding RNA with inhibitory effectors on specific mRNA...
January 31, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29382756/loss-of-capicua-alters-early-t-cell-development-and-predisposes-mice-to-t-cell-lymphoblastic-leukemia-lymphoma
#12
Qiumin Tan, Lorenzo Brunetti, Maxime W C Rousseaux, Hsiang-Chih Lu, Ying-Wooi Wan, Jean-Pierre Revelli, Zhandong Liu, Margaret A Goodell, Huda Y Zoghbi
Capicua (CIC) regulates a transcriptional network downstream of the RAS/MAPK signaling cascade. In Drosophila, CIC is important for many developmental processes, including embryonic patterning and specification of wing veins. In humans, CIC has been implicated in neurological diseases, including spinocerebellar ataxia type 1 (SCA1) and a neurodevelopmental syndrome. Additionally, we and others have reported mutations in CIC in several cancers. However, whether CIC is a tumor suppressor remains to be formally tested...
January 30, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29365397/-clinical-and-bacteriological-analysis-of-lymphoid-tissue-neoplasms-patients-with-bacteria-bloodstream-infections
#13
T Y Wang, Z J Li, Q S Lin, D Su, R Lyu, S H Deng, W W Sui, M W Fu, W Y Huang, W Liu, H Liu, L G Qiu
Objective: To investigate the clinical status of lymphoid tissue neoplasms patients with bacteria bloodstream infections, bacteriology and drug susceptibility results, and provide the basis for rational clinical anti-infection option. Methods: A retrospectively analysis of clinical data and bacterial susceptibility test results of patients with bacteria bloodstream infections from September 2010 to December 2014 was conducted. Results: A total of 134 cases including 107 patients with bloodstream infections were enrolled...
December 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29358181/posttransplant-chimeric-antigen-receptor-therapy
#14
Melody Smith, Johannes Zakrzewski, Scott James, Michel Sadelain
Therapeutic T cell engineering is emerging as a powerful tool to treat refractory hematological malignancies. Its most successful embodiment to date is based on the use of second-generation chimeric antigen receptors (CARs) targeting CD19, a cell surface molecule found in most B cell leukemias and lymphomas. Remarkable complete remissions have been obtained with autologous T cells expressing CD19 CARs in patients with relapsed, chemo-refractory B cell acute lymphoblastic leukemia, chronic lymphocytic leukemia and non-Hodgkin lymphoma...
January 22, 2018: Blood
https://www.readbyqxmd.com/read/29346763/derepression-of-the-iroquois-homeodomain-transcription-factor-gene-irx3-confers-differentiation-block-in-acute-leukemia
#15
Tim D D Somerville, Fabrizio Simeoni, John A Chadwick, Emma L Williams, Gary J Spencer, Katalin Boros, Christopher Wirth, Eleni Tholouli, Richard J Byers, Tim C P Somervaille
The Iroquois homeodomain transcription factor gene IRX3 is expressed in the developing nervous system, limb buds, and heart, and transcript levels specify obesity risk in humans. We now report a functional role for IRX3 in human acute leukemia. Although transcript levels are very low in normal human bone marrow cells, high IRX3 expression is found in ∼30% of patients with acute myeloid leukemia (AML), ∼50% with T-acute lymphoblastic leukemia, and ∼20% with B-acute lymphoblastic leukemia, frequently in association with high-level HOXA gene expression...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29330145/mbd2-ablation-impairs-lymphopoiesis-and-impedes-progression-and-maintenance-of-t-all
#16
Mi Zhou, Kuangguo Zhou, Ling Cheng, Xing Chen, Jue Wang, Xiao-Min Wang, Yingchi Zhang, Qilin Yu, Shu Zhang, Di Wang, Liang Huang, Mei Huang, Ding Ma, Tao Cheng, Cong-Yi Wang, Weiping Yuan, Jianfeng Zhou
Aberrant DNA methylation patterns in leukemia might be exploited for therapeutic targeting. In this study, we employed a genetically deficient mouse model to explore the role of the methylated DNA binding protein MBD2 in normal and malignant hematopoiesis. MBD2 ablation led to diminished lymphocytes. Functional defects of the lymphoid compartment were also observed after in vivo reconstitution of MBD2-deficient hematopoietic stem cells (HSC). In an established model of Notch1-driven T cell acute lymphoblastic leukemia (T-ALL), MBD2 ablation impeded malignant progression and maintenance by attenuating the Wnt signaling pathway...
January 12, 2018: Cancer Research
https://www.readbyqxmd.com/read/29330049/the-histone-demethylase-phf8-promotes-adult-acute-lymphoblastic-leukemia-through-interaction-with-the-mek-erk-signaling-pathway
#17
Yue Fu, Yaling Yang, Xiaoming Wang, Xiaolin Yin, Minran Zhou, Siqi Wang, Lin Yang, Tao Huang, Man Xu, Chunyan Chen
Adult acute lymphoblastic leukemia (ALL) is a malignant disorder of lymphoid progenitor cells that is associated with a high risk of relapse and poor prognosis. Thus, novel pathogenic mechanisms and therapeutic targets need to be explored. Histone methylation is one of the most significant chromatin post-translational modifications. Here, we show that the histone demethylase PHF8 is highly expressed in a large number of ALL clinical specimens and that PHF8 expression is associated with ALL progression. PHF8 knockdown inhibits proliferation and promotes the apoptosis of ALL cells in vitro as well as attenuates tumor growth in vivo...
January 9, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29321428/synchronous-occurrence-of-mycosis-fungoides-diffuse-large-b-cell-lymphoma-and-acute-myeloid-leukemia-a-report-of-two-cases
#18
Junichi Miyatake, Hiroaki Inoue, Kentarou Serizawa, Yasuyoshi Morita, J L Espinoza, Hirokazu Tanaka, Takahiro Shimada, Yoichi Tatsumi, Takashi Ashida, Itaru Matsumura
Patients with mycosis fungoides (MF), the most common subtype of primary cutaneous T-cell lymphoma, have an increased risk of developing secondary malignancies. We herein report two rare cases of MF concurring with diffuse large B cell lymphoma (B lymphoid lineage) and acute myeloid leukemia (myeloid lineage) in two otherwise healthy elderly patients. Potential etiologic factors, including the impact of the therapy-associated inflammatory response on the development of secondary tumors in patients with MF, are discussed...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29320898/did-i-miss-it-discovering-hidden-coexisting-hematological-neoplasms-a-single-institutional-review-of-100-collision-tumors
#19
Evan Himchak, Etan Marks, Yang Shi, Yanhua Wang
A collision tumor is defined as two histologically distinct tumor types identified at the same anatomic site. Hematolymphoid proliferative disorders (HLPDs), which coincide with non-hematological neoplasms, can mimic an immune response and can easily be overlooked as an immune reaction to a solid organ neoplasm, especially when low grade. In order to avoid a delay in the diagnosis of a HLPD during the workup for a non-hematological neoplasm, we identified a cohort of 100 cases with a HLPD diagnosis during the initial workup and treatment of a non-hematological neoplasm, or vice versa...
January 1, 2018: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29312638/coregulator-profiling-of-the-glucocorticoid-receptor-in-lymphoid-malignancies
#20
Dorien Clarisse, Jonathan Thommis, Karlien Van Wesemael, René Houtman, Dariusz Ratman, Jan Tavernier, Fritz Offner, Ilse Beck, Karolien De Bosscher
Coregulators cooperate with nuclear receptors, such as the glucocorticoid receptor (GR), to enhance or repress transcription. These regulatory proteins are implicated in cancer, yet, their role in lymphoid malignancies, including multiple myeloma (MM) and acute lymphoblastic leukemia (ALL), is largely unknown. Here, we report the use and extension of the microarray assay for real-time nuclear receptor coregulator interactions (MARCoNI) technology to detect coregulator associations with endogenous GR in cell lysates...
December 12, 2017: Oncotarget
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