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https://www.readbyqxmd.com/read/29911923/microrna-92a-3p-overexpression-in-peripheral-blood-mononuclear-cells-is-an-independent-predictor-of-prolonged-overall-survival-of-patients-with-chronic-lymphocytic-leukemia
#1
Sotirios G Papageorgiou, Marios A Diamantopoulos, Christos K Kontos, Anthi Bouchla, Diamantina Vasilatou, Efthymia Bazani, Andreas Scorilas, Vasiliki Pappa
MicroRNA-92a-3p (miR-92a-3p) is a member of the miR-17/92 cluster and the cancer-related miR-92 family. miR-92a-3p regulates important transcription factors such as hypoxia-inducible factor 1 (HIF1) and inhibits SOCS1 to enhance the anti-apoptotic STAT3/IL6 signaling route. In this study, we examined the putative prognostic value of miR-92a-3p in chronic lymphocytic leukemia (CLL). Total RNA, which was isolated from peripheral blood mononuclear cells (PBMCs) collected from 88 CLL patients and 36 non-leukemic blood donors, was polyadenylated and reverse-transcribed...
June 18, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29905151/chronic-lymphocytic-leukemia-with-t-14-18-and-trisomy-12-a-case-report
#2
Maïlys Le Guyader, Marie Coude, Kamel Laribi, Anne Besançon, Habib Ghnaya, Nathalie Denizon, Sabine Defasque, Fabienne Pineau-Vincent, Mohamed Kaabar, Pierre Lemaire
Chronic lymphocytic leukemia (CLL) is a B-cell neoplasm defined by the presence of at least 5×109 G/L monoclonal B lymphocytes in the peripheral blood. It is the most common type of leukemia in adult patients from Western countries. CLL is characterized by a gradual accumulation of small, longliving, immunologically dysfunctional, morphologically mature-appearing B-lymphocytes in blood, bone marrow and lymphoid tissues. It has also been reported that CLL cells have a proliferation rate higher than previously recognized, particularly in the lymphoid tissues...
June 15, 2018: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/29897892/a-t-18-22-q21-q11-involving-igl-bcl2-a-rare-event-in-chronic-lymphocytic-leukemia
#3
A Dowiak, Carlos A Tirado
We report a 63-year-old male whose bone marrow morphology and flow cytometry showed evidence of B-Chronic Lymphocytic Leukemia (B-CLL). Chromosome analysis of the bone marrow showed an abnormal karyotype, described as 46,XY,t(18;22)(q21;q11.2)[19]/46,XY[1]. FISH analysis on interphase nuclei revealed an abnormal clone with loss of D13S319 (13q14.3) in 68.0% of the cells examined. Deletion of chromosome 13 is the most common cytogenetic abnormality identified in CLL (approximately 50% of CLL). Recent studies suggest that deletion of chromosome 13q14 in 65% or more nuclei by FISH is associated with an intermediate to unfavorable prognosis in CLL...
2018: Journal of the Association of Genetic Technologists
https://www.readbyqxmd.com/read/29895969/inhibition-of-maternal-embryonic-leucine-zipper-kinase-with-otssp167-displays-potent-anti-leukemic-effects-in-chronic-lymphocytic-leukemia
#4
Ya Zhang, Xiangxiang Zhou, Ying Li, Yangyang Xu, Kang Lu, Peipei Li, Xin Wang
TP53 pathway defects contributed to therapy resistance and adverse clinical outcome in chronic lymphocytic leukemia (CLL), which represents an unmet clinical need with few therapeutic options. Maternal embryonic leucine zipper kinase (MELK) is a novel oncogene, which plays crucial roles in mitotic progression and stem cell maintenance. OTSSP167, an orally administrated inhibitor targeting MELK, is currently in a phase I/II clinical trial in patients with advanced breast cancer and acute myeloid leukemia. Yet, no investigation has been elucidated to date regarding the oncogenic role of MELK and effects of OTSSP167 in chronic lymphocytic leukemia (CLL)...
June 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29893517/relationship-between-the-expression-of-cd25-and-cd69-on-the-surface-of-lymphocytes-t-and-b-from-peripheral-blood-and-bone-marrow-of-patients-with-chronic-lymphocytic-leukemia-and-established-prognostic-factors-of-this-disease
#5
Ewelina Grywalska, Małgorzata Bartkowiak-Emeryk, Marcin Pasiarski, Karolina Olszewska-Bożek, Michał Mielnik, Martyna Podgajna, Monika Pieczykolan, Anna Hymos, Elżbieta Fitas, Agata Surdacka, Stanisław Góźdź, Jacek Roliński
BACKGROUND: Chronic lymphocytic leukemia (CLL) is a condition characterized by the accumulation of morphologically mature monoclonal lymphocytes B with the CD19+/CD5+/CD23+ phenotype in lymphoid tissue, peripheral blood and bone marrow. The clinical course of patients with CLL is heterogeneous, ranging from indolent to aggressive. The role of lymphocyte activation in the natural history of CLL is still a matter of discussion. OBJECTIVES: The aim of this study was to determine the percentages and absolute numbers of lymphocytes B and T in peripheral blood and bone marrow of CLL patients...
June 12, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29877241/-chronic-lymphocytic-leukemia-update-on-pathophysiology-and-management
#6
Junji Suzumiya
Chronic lymphocytic leukemia (CLL) is the most common hematological malignancy in the Western countries. Although a multi-step model has been proposed for the pathogenesis of CLL as well as other malignancies, the precise mechanism underlying the development of CLL remains complicated and unclear. In addition, several studies have investigated adverse prognostic factors, including gene abnormalities and the evolution of clones with the disease progression. FCR (fludarabine, cyclophosphamide, and rituximab) has been the standard first-line therapy for "fit" younger patients without TP53 abnormality/17p deletion...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29859176/phase-i-trial-cirmtuzumab-inhibits-ror1-signaling-and-stemness-signatures-in-patients-with-chronic-lymphocytic-leukemia
#7
Michael Y Choi, George F Widhopf, Emanuela M Ghia, Reilly L Kidwell, Md Kamrul Hasan, Jian Yu, Laura Z Rassenti, Liguang Chen, Yun Chen, Emily Pittman, Minya Pu, Karen Messer, Charles E Prussak, Januario E Castro, Catriona Jamieson, Thomas J Kipps
Cirmtuzumab is a humanized monoclonal antibody (mAb) that targets ROR1, an oncoembryonic orphan receptor for Wnt5a found on cancer stem cells (CSCs). Aberrant expression of ROR1 is seen in many malignancies and has been linked to Rho-GTPase activation and cancer stem cell self-renewal. For patients with chronic lymphocytic leukemia (CLL), self-renewing, neoplastic B cells express ROR1 in 95% of cases. High-level leukemia cell expression of ROR1 is associated with an unfavorable prognosis. We conducted a phase 1 study involving 26 patients with progressive, relapsed, or refractory CLL...
June 1, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29797667/comorbidities-predict-inferior-outcomes-in-chronic-lymphocytic-leukemia-treated-with-ibrutinib
#8
Max J Gordon, Michael Churnetski, Hamood Alqahtani, Xavier Rivera, Adam Kittai, Stephen M Amrock, Spencer James, Sheila Hoff, Sudhir Manda, Stephen E Spurgeon, Michael Choi, Jonathon B Cohen, Daniel Persky, Alexey V Danilov
BACKGROUND: Most patients with chronic lymphocytic leukemia (CLL) present with multiple comorbidities. Although comorbidities negatively affect outcomes for patients treated with chemoimmunotherapy, their impact on patients who receive targeted therapies is unknown. METHODS: This multicenter, retrospective analysis evaluated the significance of comorbidities, as assessed by the Cumulative Illness Rating Scale (CIRS), among patients with CLL treated with ibrutinib...
May 24, 2018: Cancer
https://www.readbyqxmd.com/read/29779348/-prognostic-significance-of-cll-ipi-for-chinese-patients-with-chronic-lymphocytic-leukemia
#9
H Y Zhu, L Wang, J Qiao, Y X Zou, Y Xia, W Wu, L Cao, J H Liang, L Fan, W Xu, J Y Li
Objective: To validate the prognostic value of chronic lymphocytic leukemia-international prognostic index (CLL-IPI) for Chinese CLL patients. Methods: Two hundred and fifteen CLL patients who were initially diagnosed and treated in Jiangsu Province Hospital from January 2002 to November 2017 were included in the retrospective analysis. Risk stratification and prognosis were evaluated by CLL-IPI scoring system. Results: ①Of the 215 patients, 143 were males and 72 were females, with a median age of 60 (16-85) years old...
May 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29779347/-clinical-analysis-of-70-chronic-lymphocytic-leukemia-patients-with-trisomy-12-detected-by-fish
#10
R Lyu, Z J Li, H Li, S H Yi, W Liu, T Y Wang, W J Xiong, L G Qiu
Objective: To summarize and investigate the characteristics, prognosis and treatments of chronic lymphocytic leukemia (CLL) patients with trisomy 12 by using FISH (CEP12). Methods: Clinical data of 330 CLL patients were analyzed retrospectively by using FISH (CEP12) to detect trisomy 12 from May 2003 to April 2015. The clinical data and laboratory characteristics of CEP12 positive patients (70 cases) were compared with those CEP12 negative patients (260 cases). Results: Compared with CEP12 negative CLL patients, the proportion of hepatomegaly (13...
May 14, 2018: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/29761374/the-prognostic-role-of-hbv-infection-in-chronic-lymphocytic-leukemia
#11
Jin-Hua Liang, Rui Gao, Jun-Cheng Dai, Robert Peter Gale, Wang Li, Lei Fan, Zhi-Bin Hu, Wei Xu, Jian-Yong Li
PURPOSE: We attempt to assess the impact of hepatis-B virus (HBV) status on the prognosis of chronic lymphocytic leukemia (CLL) using a Chinese case cohort. METHODS: Five hundred and one consecutive newly diagnosed subjects with CLL were enrolled in this case cohort. HBV infection was defined as hepatitis B surface antigen (HBsAg) positive or hepatitis-B core antibody (HBcAb) positive. Univariate and stepwise multivariate Cox regression analyses were used to screen the prognostic risk factors associated with the end point of time-to-treatment (TTT) or overall survival (OS)...
May 14, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29747272/-analysis-of-proliferative-lesions-of-haematopoietic-and-lymphoid-tissue-in-the-female-productive-tract
#12
D B Chen, H Zhang, Y H Zhang, Y Wang, Q J Song, S M Yang, H Cui, Y Zhao, X Z Fang, D H Shen
Objective: To study the clinicopathologic features, diagnosis and differential diagnosis of tumors of haematopoietic and lymphoid tissue in the female productive tract. Methods: Eleven cases of myeloid sarcoma and leukemia, 9 of non Hodgkin lymphoma (NHL) , 13 of cervical lymphoma-like lesions were selected from Peking University People's Hospital from January 2006 to August 2017. According to WHO classification of tumors of haematopoietic and lymphoid tissues (2008) and updated classification(2016), the cases were studied by microscopy, immunohistochemistry and in situ hybridization...
April 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29745034/normal-serum-protein-electrophoresis-and-mutated-ighv-genes-detect-very-slowly-evolving-chronic-lymphocytic-leukemia-patients
#13
Jasmine Chauzeix, Marie-Pierre Laforêt, Mélanie Deveza, Liam Crowther, Elodie Marcellaud, Paco Derouault, Anne-Sophie Lia, François Boyer, Nicolas Bargues, Guillaume Olombel, Arnaud Jaccard, Jean Feuillard, Nathalie Gachard, David Rizzo
More than 35 years after the Binet classification, there is still a need for simple prognostic markers in chronic lymphocytic leukemia (CLL). Here, we studied the treatment-free survival (TFS) impact of normal serum protein electrophoresis (SPE) at diagnosis. One hundred twelve patients with CLL were analyzed. The main prognostic factors (Binet stage; lymphocytosis; IGHV mutation status; TP53, SF3B1, NOTCH1, and BIRC3 mutations; and cytogenetic abnormalities) were studied. The frequencies of IGHV mutation status, cytogenetic abnormalities, and TP53, SF3B1, NOTCH1, and BIRC3 mutations were not significantly different between normal and abnormal SPE...
May 9, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29740389/a-rare-case-of-composite-dural-extranodal-marginal-zone-lymphoma-and-chronic-lymphocytic-leukemia-small-lymphocytic-lymphoma
#14
REVIEW
Mark Bustoros, Benjamin Liechty, David Zagzag, Cynthia Liu, Timothy Shepherd, Deborah Gruber, Bruce Raphael, Dimitris G Placantonakis
Background: Primary extranodal marginal zone lymphoma (MZL) of the dura is a rare neoplastic entity in the central nervous system (CNS). Methods: We used literature searches to identify previously reported cases of primary dural MZL. We also reviewed clinical, pathologic, and radiographic data of an adult patient with concurrent dural MZL and chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). Results: We identified 104 cases of dural MZL in the literature...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29736587/a-higher-percentage-of-cells-with-13q-deletion-predicts-worse-outcome-in-chinese-patients-with-chronic-lymphocytic-leukemia-carrying-isolated-13q-deletion
#15
Yuqing Miao, Yi Miao, Ke Shi, Qian Sun, Si-Shu Zhao, Yi Xia, Shu-Chao Qin, Hai-Rong Qiu, Hui Yang, Hao Xu, Hua-Yuan Zhu, Jia-Zhu Wu, Wei Wu, Lei Cao, Li Wang, Lei Fan, Wei Xu, Jian-Yong Li
Previous studies showed that, in chronic lymphocytic leukemia (CLL) patients with isolated 13q deletion (13q-), those carrying higher percentage of leukemic cells with 13q- had more aggressive diseases. However, the prognostic value of the percentage of leukemic cells with 13q- in Chinese CLL patients with isolated 13q- remained to be determined. Using interphase fluorescence in situ hybridization (FISH), we identified 82 patients (25.4%) with isolated 13q deletion from a cohort of 323 untreated CLL patients...
May 7, 2018: Annals of Hematology
https://www.readbyqxmd.com/read/29721189/assessment-of-micro-rnas-expression-in-leukemic-cells-as-prognostic-markers-in-chronic-lymphocytic-leukemia-micro-rnas-can-predict-survival-in-a-course-of-the-disease
#16
Agnieszka Szymczyk, Sylwia Chocholska, Arkadiusz Macheta, Dariusz Szczepanek, Marek Hus, Monika Podhorecka
Numerous genetic alterations predicting prognosis and clinical outcome are revealed recently in chronic lymphocytic leukemia (CLL). Among them the deregulated expression of micro RNAs that can induce tumor growth, or act as tumor suppressors seem to be of great importance. This study aimed to analyze the possible role of chosen micro RNAs as markers of prognosis in patients with CLL. We assessed the expression of miR-21, miR-34a, miR-181a, miR-199a/b and miR-221 in previously separated leukemic cells with the use of qRQ-PCR technique at the moment of diagnosis...
April 10, 2018: Oncotarget
https://www.readbyqxmd.com/read/29720177/genomic-characterization-of-chronic-lymphocytic-leukemia-cll-in-radiation-exposed-chornobyl-cleanup-workers
#17
Juhi Ojha, Iryna Dyagil, Stuart C Finch, Robert F Reiss, Adam J de Smith, Semira Gonseth, Mi Zhou, Helen M Hansen, Amy L Sherborne, Jean Nakamura, Paige M Bracci, Nataliya Gudzenko, Maureen Hatch, Nataliya Babkina, Mark P Little, Vadim V Chumak, Kyle M Walsh, Dimitry Bazyka, Joseph L Wiemels, Lydia B Zablotska
BACKGROUND: Chronic lymphocytic leukemia (CLL) was the predominant leukemia in a recent study of Chornobyl cleanup workers from Ukraine exposed to radiation (UR-CLL). Radiation risks of CLL significantly increased with increasing bone marrow radiation doses. Current analysis aimed to clarify whether the increased risks were due to radiation or to genetic mutations in the Ukrainian population. METHODS: A detailed characterization of the genomic landscape was performed in a unique sample of 16 UR-CLL patients and age- and sex-matched unexposed general population Ukrainian-CLL (UN-CLL) and Western-CLL (W-CLL) patients (n = 28 and 100, respectively)...
May 2, 2018: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/29715621/elevated-mir-20b-5p-expression-in-peripheral-blood-mononuclear-cells-a-novel-independent-molecular-biomarker-of-favorable-prognosis-in-chronic-lymphocytic-leukemia
#18
Sotirios G Papageorgiou, Christos K Kontos, Panagiotis Tsiakanikas, Georgia Stavroulaki, Anthi Bouchla, Diamantina Vasilatou, Efthymia Bazani, Afroditi Lazarakou, Andreas Scorilas, Vasiliki Pappa
MicroRNA-20b-5p (miR-20b-5p) is part of the miR-106a/363 cluster and a member of the cancer-related miR-17 family. miR-20b-5p regulates important transcription factors, including hypoxia-inducible factor 1 (HIF1) and signal transducer and activator of transcription 3 (STAT3). Recently, the dysregulation of miR-20b-5p expression has been observed in many B-cell lymphomas and T-cell leukemias. In this research study, we examined the putative prognostic value of miR-20b-5p in CLL. Therefore, total RNA was isolated from peripheral blood mononuclear cells (PBMCs) collected from 88 CLL patients; next, total RNA was polyadenylated and first-strand cDNA was synthesized, using an oligo-dT-adapter primer...
April 26, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29713184/prognostic-and-clinicopathological-value-of-sirt3-expression-in-various-cancers-a-systematic-review-and-meta-analysis
#19
Yongping Zhou, Sijin Cheng, Sinuo Chen, Yongzhao Zhao
Background: Several studies have explored the prognostic value of sirtuin 3 (SIRT3) in various cancers, but obtained inconsistent results. The current systematic review and meta-analysis was conducted to investigate the association between SIRT3 expression and prognosis in various cancers. Methods: PubMed, Embase, Web of Science and the Cochrane Library were comprehensively retrieved by the end of September 29, 2017. All the relevant studies were checked and included in the meta-analysis if they met the inclusion criteria...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29705268/aberrant-detection-of-phenotypic-markers-in-chronic-lymphocytic-leukemia-cll-lymphocytes-after-cryopreservation
#20
Lauren A Thurgood, Karen M Lower, Cindy Macardle, Bryone J Kuss
The cryopreservation of peripheral blood mononuclear cells (PBMCs) is a routine research laboratory process, enabling long-term storage of primary patient blood samples. Retrospective analysis of these samples has the potential to identify markers that may be associated with prognosis and response to treatment. To draw valid biological conclusions from this type of analysis, it is essential to ensure that any observed changes are directly related to the pathology of the disease rather than the preservation process itself...
April 26, 2018: Experimental Hematology
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