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https://www.readbyqxmd.com/read/29446543/cyclin-dependent-kinase-inhibitor-2a-b-gene-deletions-are-markers-of-poor-prognosis-in-indian-children-with-acute-lymphoblastic-leukemia
#1
Manisha Agarwal, Sameer Bakhshi, Sadanand N Dwivedi, Madhulika Kabra, Rashmi Shukla, Rachna Seth
BACKGROUND: Cyclin dependent kinase inhibitor 2A/B (CDKN2A/B) genes are implicated in many malignancies including acute lymphoblastic leukemia (ALL). These tumor suppressor genes, with a key regulatory role in cell cycle are located on chromosome 9p21.3. Previous studies involving CDKN2A/B gene deletions have shown mixed associations with survival outcome in childhood ALL. PROCEDURE: Hundred and four newly diagnosed children with ALL (1-14 years) were enrolled in this study...
February 15, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29441563/acute-myeloid-t-lymphoblastic-leukaemia-amtl-a-distinct-category-of-acute-leukaemias-with-common-pathogenesis-in-need-of-improved-therapy
#2
Alejandro Gutierrez, Alex Kentsis
Advances in the classification of acute leukaemias have led to improved outcomes for a substantial fraction of patients. However, chemotherapy resistance remains a major problem for specific subsets of acute leukaemias. Here, we propose that a molecularly distinct subtype of acute leukaemia with shared myeloid and T cell lymphoblastic features, which we term acute myeloid/T-lymphoblastic leukaemia (AMTL), is divided across 3 diagnostic categories owing to variable expression of markers deemed to be defining of myeloid and T-lymphoid lineages, such as myeloperoxidase and CD3...
February 14, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29435192/microrna-expression-and-activity-in-t-cell-acute-lymphoblastic-leukemia
#3
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/29423721/reliability-validity-and-cross-cultural-adaptation-of-the-turkish-version-of-the-bristol-rheumatoid-arthritis-fatigue-multi-dimensional-questionnaire
#4
Fulden Sari, Deran Oskay, Abdurrahman Tufan
Up to 98% of rheumatoid arthritis (RA) patients experienced fatigue. It is an important physical and cognitive symptom which has overwhelming, uncontrollable, and unpredictable affects throughout their whole life. RA fatigue composes of complex and multi-dimensional components which are pain, stress, depression, inflammation, and disability. The acknowledgement of fatigue is important, and fatigue should be measured in all RA trials alongside the core set. The aim of this study was to determine reliability and validity of Turkish version of Bristol Rheumatoid Arthritis Fatigue Multi-Dimensional Questionnaire in RA patients...
February 8, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29416774/flow-cytometric-characterization-of-acute-leukemia-reveals-a-distinctive-blast-gate-of-murine-t-lymphoblastic-leukemia-lymphoma
#5
Zengkai Pan, Min Yang, Kezhi Huang, Guntram Büsche, Silke Glage, Arnold Ganser, Zhixiong Li
Immunophenotypic analysis using multiparameter flow cytometry is an indispensable tool for diagnosis and management of acute leukemia. Mouse models have been widely used for medical research for more than 100 years and are indispensable for leukemia research. However, immunophenotypic analysis of murine leukemia was not always performed in published studies, and blast gating for isolation of blasts was shown only in very few studies. No systemic characterization of all types of murine acute leukemia in large cohorts by flow cytometry has been reported...
January 5, 2018: Oncotarget
https://www.readbyqxmd.com/read/29406798/successful-treatment-of-adolescents-and-young-adults-with-philadelphia-negative-acute-lymphoblastic-leukemia-by-novel-l-asparaginase-intensified-induction-therapy-and-cord-blood-transplantation-a-single-center-decade-report
#6
Akira Kojima, Kazunari Yamada, Koichi Kajiwara, Yuichi Takeuchi, Marina Matsui, Masao Tsukada, Kanichi Iwama, Yasuji Kozai, Hideki Kodo
A novel induction therapy, including intensive L-asparaginase, was designed in 2007 for patients aged <45 years with Philadelphia-negative acute lymphoblastic leukemia (ALL). We analyzed seven de novo cases and one case of recurrence who received this treatment. The median age was 21 years (range: 16-35 years). Four patients had T-ALL and the others had B-ALL. All the patients achieved complete remission and proceeded to cord blood transplantation. In the median 72-month follow-up, there were no cases of observed mortality or recurrence...
February 6, 2018: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/29397822/-itraq-coupled-with-2dlc-ms-ms-to-screen-and-identify-speci-fic-bio-markers-of-t-cell-acute-lymphoblastic-leukemia
#7
Wen-Li Zuo, Run-Hong Yu, Jing-Yu Zhang, Mei Deng, Yu-Feng Liu
OBJECTIVE: To screen and identify potential biomarkers specific for T-cell acute lymphoblastic leukemia (T-ALL). METHODS: Sera were collected from 20 newly diagnosed B-cell acute lymphoblastic leukemia (B-ALL) patients and 20 T-ALL patients. Proteins were extracted, purified and digested with trypsin. All specimens were analyzed by isobaric tags for relative and absolute quantification (iTRAQ) and two-dimensional liquid chromatography-tandem mass spectrometry (2DLC-MS/MS) in a data-dependent mode...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29397811/-detecting-hb-1-expression-level-in-bone-marrow-of-acute-leukemia-patients-by-real-time-fluorescence-quantitative-rt-pcr
#8
Qing-Yun Wang, Yuan Li, Li Ji, Ze-Yin Liang, Wei Liu, Han-Yun Ren, Zhi-Xiang Qiu
OBJECTIVE: To investigate the expression level of HB-1 gene in patients with acute lymphoblastic leukemia (ALL) and the significance of HB-1 gene in monitoring of minimal residual disease (MRD). METHODS: The method of real-time fluorescence quantitative RT-PCR (Taqman probe) was established to detect the expression levels of HB-1 gene; then the sensitivity, specificity and repeatability of this assay were evaluated and verified. The HB-1 gene expression levels in bone marrow of 183 cases of ALL, 70 cases of acute myeloid leukemias (AML), 52 cases of non-malignant hematologic diseases and 24 healthy hematopoietic stem cell donors were detected...
February 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29382756/loss-of-capicua-alters-early-t-cell-development-and-predisposes-mice-to-t-cell-lymphoblastic-leukemia-lymphoma
#9
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/29378484/the-relationship-between-ace-agt-gene-polymorphisms-and-the-risk-of-diabetic-retinopathy-in-chinese-patients-with-type-2-diabetes
#10
Yong-Chao Qiao, Min Wang, Yan-Hong Pan, Xiao-Xi Zhang, Fang Tian, Yin-Ling Chen, Hai-Lu Zhao
AIMS: This study aims to investigate the association between renin-angiotensin system gene polymorphism and diabetic retinopathy (DR) in Chinese patients with type 2 diabetes. METHODS: We consecutively included 1491 patients for the assessment of ACE I/D and AGT M/T gene polymorphisms in 345 DR cases and 1146 patients without retinopathy (DNR). Albuminuria was defined by urine albumin creatinine ratio and albumin excretion rate. RESULTS: Compared with the NDR patients, the DR cases displayed a higher proportion of diabetic nephropathy (32...
January 2018: Journal of the Renin-angiotensin-aldosterone System: JRAAS
https://www.readbyqxmd.com/read/29357914/cell-adhesion-mediated-mitochondria-transfer-contributes-to-mesenchymal-stem-cell-induced-chemoresistance-on-t-cell-acute-lymphoblastic-leukemia-cells
#11
Jiancheng Wang, Xin Liu, Yuan Qiu, Yue Shi, Jianye Cai, Boyan Wang, Xiaoyue Wei, Qiong Ke, Xin Sui, Yi Wang, Yinong Huang, Hongyu Li, Tao Wang, Ren Lin, Qifa Liu, Andy Peng Xiang
BACKGROUND: Despite the high cure rate of T cell acute lymphoblastic leukemia (T-ALL), drug resistance to chemotherapy remains a significant clinical problem. Bone marrow mesenchymal stem cells (MSCs) protect leukemic cells from chemotherapy, but the underlying mechanisms are poorly understood. In this study, we aimed to uncover the mechanism of MSC-induced chemoresistance in T-ALL cells, thus providing a promising clinical therapy target. METHODS: Cell viability was determined using the viability assay kit CCK-8...
January 22, 2018: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29348314/oncogenetics-and-mrd-in-pediatric-t-all
#12
(no author information available yet)
No abstract text is available yet for this article.
January 18, 2018: Blood
https://www.readbyqxmd.com/read/29348308/refining-genetic-stratification-in-t-all
#13
David O'Connor
No abstract text is available yet for this article.
January 18, 2018: Blood
https://www.readbyqxmd.com/read/29330284/novel-intergenically-spliced-chimera-nfatc3-pla2g15-is-associated-with-aggressive-t-all-biology-and-outcome
#14
Jonathan Bond, Christine Tran Quang, Guillaume Hypolite, Mohamed Belhocine, Aurélie Bergon, Gaëlle Cordonnier, Jacques Ghysdael, Elizabeth Macintyre, Nicolas Boissel, Salvatore Spicuglia, Vahid Asnafi
Leukemias are frequently characterized by the expression of oncogenic fusion chimeras that normally arise due to chromosomal rearrangements. Intergenically-spliced chimeric RNAs (ISCs) are transcribed in the absence of structural genomic changes, and aberrant ISC expression is now recognized as a potential driver of cancer. To better understand these potential oncogenic drivers, high-throughput RNA-sequencing (RNA-seq) was performed on T-acute lymphoblastic leukemia (T-ALL) patient specimens (n=24) and candidate T-ALL-related ISCs were identified (n=55; a median of 4 per patient)...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330145/mbd2-ablation-impairs-lymphopoiesis-and-impedes-progression-and-maintenance-of-t-all
#15
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/29326345/microrna-452-exerts-growth-suppressive-activity-against-t-cell-acute-lymphoblastic-leukemia
#16
Haihao Wang, Qiannan Guo, Guizhi Zhu, Shuo Zhu, Peiwen Yang, Mingsheng Zhang
T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological cancer. Although microRNA (miR)-452 serves as a tumor suppressor in multiple solid tumors, its expression and function in hematological cancers including T-ALL is largely unknown. We measured the expression of miR-452 in 38 T-ALL and 22 normal lymph node samples by real-time PCR analysis. The methylation levels in the promoter of miR-452 were determined using MethyLight assay. The effects of miR-452 overexpression on proliferation, cell cycle distribution, and tumorigenesis were explored...
January 10, 2018: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/29326336/arid5b-as-a-critical-downstream-target-of-the-tal1-complex-that-activates-the-oncogenic-transcriptional-program-and-promotes-t-cell-leukemogenesis
#17
Wei Zhong Leong, Shi Hao Tan, Phuong Cao Thi Ngoc, Stella Amanda, Alice Wei Yee Yam, Wei-Siang Liau, Zhiyuan Gong, Lee N Lawton, Daniel G Tenen, Takaomi Sanda
The oncogenic transcription factor TAL1/SCL induces an aberrant transcriptional program in T-cell acute lymphoblastic leukemia (T-ALL) cells. However, the critical factors that are directly activated by TAL1 and contribute to T-ALL pathogenesis are largely unknown. Here, we identified AT-rich interactive domain 5B (ARID5B) as a collaborating oncogenic factor involved in the transcriptional program in T-ALL. ARID5B expression is down-regulated at the double-negative 2-4 stages in normal thymocytes, while it is induced by the TAL1 complex in human T-ALL cells...
January 11, 2018: Genes & Development
https://www.readbyqxmd.com/read/29325889/early-cell-response-of-osteogenic-cells-on-differently-modified-implant-surfaces-sequences-of-cell-proliferation-adherence-and-differentiation
#18
Sebastian Blatt, Andreas Max Pabst, Eik Schiegnitz, Marco Hosang, Thomas Ziebart, Christian Walter, Bilal Al-Nawas, Marcus Oliver Klein
OBJECTIVES: Osseointegration of dental implants is a crucial prerequisite for long-term survival. Therefore, surface modifications are needed to interact with the extracellular environment and to trigger osteogenic cell responses such as cell proliferation, adherence, and differentiation. The purpose of this study was to investigate different surface modifications in vitro over 2 weeks. MATERIALS AND METHODS: Commercially available cells from a human osteogenic cell line (HHOB-c) were cultivated on the following surfaces: titanium with smooth surfaces (polished titanium (P), machined titanium (M), polyetheretherketone (Peek)), titanium with rough and hydrophilised surfaces (acid etched titanium (A), sandblasted acid etched titanium (SA and SA2), sandblasted acid etched hydrophilised (SAH), titanium plasma painted titanium (TPS)), titanium with calcium phosphate-containing surfaces (titanium plasma painted calcium phosphate modified titanium (TPS-CaP), sandblasted calcium phosphate modified titanium (S-CaP), sandblasted acid etched calcium phosphate modified titanium (SA-CaP)), and zirconium-oxide (yttrium amplified zirconium (Z), yttrium amplified Ca2+ delivering zirconium (Z-Ca))...
December 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29313423/rho-guanosine-nucleotide-exchange-factors-are-not-such-bad-guys-after-all-in-cancera
#19
Javier Robles-Valero, L Francisco Lorenzo-Martín, Isabel Fernández-Pisonero, Xosé R Bustelo
Rho GDP/GTP exchange factors (GEFs), the enzymes that trigger the stimulation of Rho GTPases during cell signaling, are widely deemed as potential therapeutic targets owing to their protumorigenic functions. However, the sparse use of animal models has precluded a full understanding of their pathophysiological roles at the organismal level. In a recent article in Cancer Cell, we have reported that the Vav1 GEF unexpectedly acts as a tumor suppressor by mediating the noncatalytic nucleation of cytoplasmic complexes between the E3 ubiquitin ligase Cbl-b and the active Notch1 intracellular domain (ICN1)...
January 9, 2018: Small GTPases
https://www.readbyqxmd.com/read/29305553/preclinical-efficacy-of-daratumumab-in-t-cell-acute-lymphoblastic-leukemia-t-all
#20
Karen L Bride, Tiffaney L Vincent, Soo-Yeon Im, Richard Aplenc, David M Barrett, William L Carroll, Robin Carson, Yunfeng Dai, Meenakshi Devidas, Kimberly P Dunsmore, Tori Fuller, Tina Glisovic-Aplenc, Terzah M Horton, Stephen P Hunger, Mignon L Loh, Shannon L Maude, Elizabeth A Raetz, Stuart S Winter, Stephan A Grupp, Michelle L Hermiston, Brent L Wood, David T Teachey
As a consequence of acquired or intrinsic disease resistance, the prognosis for patients with relapsed or refractory T-cell acute lymphoblastic leukemia (T-ALL) is dismal. Novel, less toxic drugs are clearly needed. One of the most promising emerging therapeutic strategies for cancer treatment is targeted immunotherapy. Immune therapies have improved outcomes for patients with other hematologic malignancies including B-ALL, however no immune therapy has been successfully developed for T-ALL. We hypothesize targeting CD38 will be effective against T-ALL...
January 5, 2018: Blood
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