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leukemia lymphoma

Sinem Civriz Bozdağ, Meltem Kurt Yüksel, Taner Demirer
Stem cells can be either totipotent, pluripotent, multipotent or unipotent. Totipotent cells have the capability to produce all cell types of the developing organism, including both embryonic and extraembryonic tissues. The Hematopoietic Stem Cells (HSC) are the first defined adult stem cells (ASC) that give rise to all blood cells and immune system. Use of HSCs for treatment of hematologic malignancies, which is also called bone marrow (BM) transplantation or peripheral blood stem cells (PBSC) transplantation is the pioneer of cellular therapy and translational research...
March 20, 2018: Advances in Experimental Medicine and Biology
Gleb G Mironov, Alexandre Bouzekri, Jessica Watson, Olga Loboda, Olga Ornatsky, Maxim V Berezovski
Mass cytometry is a novel cell-by-cell analysis technique, which uses elemental tags instead of fluorophores. Sample cells undergo rapid ionization in inductively coupled plasma and the ionized elemental tags are then analyzed by means of time-of-flight mass spectrometry. Benefits of the mass cytometry approach are in no need for compensation, the high number of detection channels (up to 100) and low background noise. In this work, we applied a biotinylated aptamer against human PTK7 receptor for characterization of positive (human acute lymphoblastic leukemia) and negative (human Burkitt's lymphoma) cells by a mass cytometry instrument...
March 20, 2018: Analytical and Bioanalytical Chemistry
Guideng Li, Alex Yick-Lun So, Reeshelle Sookram, Stephanie Wong, Jessica K Wang, Yong Ouyang, Peng He, Yapeng Su, Rafael Casellas, David Baltimore
Deregulation of several microRNAs can influence critical developmental checkpoints during hematopoiesis as well as cell functions, eventually leading to the development of autoimmune disease or cancer. We found that miR-125b is expressed in bone marrow multipotent progenitors and myeloid cells but is shut down in the B cell lineage, and the gene encoding miR-125b lacked transcriptional activation markers in B cells. To understand the biological importance of the physiological silencing of miR-125b expression in B cells, we drove its expression in the B cell lineage and found that dysregulated miR-125b expression impaired egress of immature B cells from the bone marrow to peripheral blood...
March 19, 2018: Blood
Cunzhen Shi, Xiangqun Li, Xiaogan Wang, Ning Ding, Lingyan Ping, Yunfei Shi, Lan Mi, Yumei Lai, Yuqin Song, Jun Zhu
BACKGROUND: Mantle cell lymphoma (MCL) is an incurable B cell-derived malignant tumor with a median overall survival of 4-5 years. Mer tyrosine kinase (MerTK) has been reported to be aberrantly expressed in leukemia, melanoma, and gastric cancer, and plays a pivotal role in the process of oncogenesis. This study assessed the role of MerTK in MCL for the first time. METHODS: Immunohistochemistry and western blot were performed to figure out expression of MerTK in MCL...
March 20, 2018: Journal of Hematology & Oncology
Dong Gao, Yongguang Cai, Yanyuan Chen, Wang Li, Chih-Chang Wei, Xiaoling Luo, Yuhuan Wang
Toll-like receptor (TLR) 7/8 agonists have been applied in combination with chemo-, radio- or immunotherapy for lymphoma, and used as topical drugs for the treatment of viral skin lesions and skin tumors. In the present study, the role of an adenine analog, 9-(4-carboxyphenyl)-8-hydroxy-2-(2-methoxyethoxy)-adenine [termed Gao Dong (GD)], a novel TLR7 agonist, in the activation of cytokine-induced killer/natural killer (CIK/NK) cells was determined. The results of the present study indicated that GD was able to activate CIK/NK cells...
April 2018: Oncology Letters
Rosa Ruchlemer, Michal Amit-Kohn, Ariella Tvito, Irena Sindelovsky, Ari Zimran, David Raveh-Brawer
PURPOSE: Bone loss-osteopenia and osteoporosis-is a recognized consequence of solid tumors in adults, of pediatric hematological malignancies, and of the treatment for these diseases, but little research has been published on the adverse effects of hematological malignancies on the bone in adults. The aim of this study is to identify hematological diseases that are associated with the highest prevalence and severity of osteoporosis. METHODS: We evaluated DXA (dual-energy X-ray absorptiometry) in a cross-section of 181 adult patients with hematological neoplasms, excluding multiple myeloma...
March 16, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Luis Malpica, Agustin Pimentel, Isildinha M Reis, Eduardo Gotuzzo, Lazaros Lekakis, Krishna Komanduri, Thomas Harrington, Glen N Barber, Juan C Ramos
Adult T-cell leukemia/lymphoma (ATLL) is a fatal disease caused by human T-cell leukemia virus type 1 (HTLV-1). We retrospectively analyzed 195 patients with ATLL (lymphomatous n = 96, acute n = 80, unfavorable chronic n = 7, chronic n = 5, smoldering n = 3, and unclassified n = 4) diagnosed between 1987 and 2016 (median age 52 years, 77% Afro-Caribbean). Hypercalcemia was associated with acute ATLL (65%, vs 23% lymphomatous) ( P = .012). The median survival for patients treated with modern therapies between 2000 and 2016 was 4...
March 27, 2018: Blood Advances
Hamid Reza Mirzaei, Hossein Pourghadamyari, Majid Rahmati, Abbas Mohammadi, Javid Sadri Nahand, Abbas Rezaei, Hamed Mirzaei, Jamshid Hadjati
Recently clinical trials utilizing genetically engineered T cells expressing a chimeric antigen receptor (CAR) that is half monoclonal antibody and half T-cell receptor have demonstrated remarkable response in patients with advanced cancers like relapsed or refractory acute lymphoblastic leukemia (ALL) and lymphoma. Moreover, emerging chimeric genome editing tools such as zinc-finger nucleases (ZNFs), transcription activator-like effector nucleases (TALENs) and clustered regulatory interspaced short palindromic repeat (CRISPR)/Cas composed of sequence-specific DNA binding module(s) linked to a non-specific DNA cleavage domain have made possible to dramatically expand the ability to manipulate cells aim to treat and/or study a wide range of diseases including cancer...
March 12, 2018: Cancer Letters
Li-Na Zhang, Yongping Song, Delong Liu
The prognosis of adults with relapsed/refractory (R/R) acute lymphoblastic leukemia (ALL) remains dismal even at this day and age. With salvage chemotherapy, only 29% (range 18 to 44%) of the patients with R/R ALL can be induced into complete remission (CR), with a median overall survival (OS) of 4 months (range 2-6 months). Blinatumomab and inotuzumab ozogamycin (IO) are immunotherapeutic agents that increased CR to 80% and extended survival to 7.7 months in this high-risk population of patients. In the last few years, chimeric antigen receptor (CAR)--engineered T cells have led to major progress in cancer immunotherapy...
March 15, 2018: Journal of Hematology & Oncology
Yimei Ma, Xizhou An, Xianmin Guan, Qinglin Kong, Yanzhen Wang, Pengfei Li, Yan Meng, Yinghui Cui, Xianhao Wen, Yuxia Guo, Yali Shen, Jie Yu
Phosphoribosyl pyrophosphate synthetase 1 (PRPS1) is closely associated with a number of diseases; however, its influence in B-cell acute lymphoblastic leukemia (B-ALL) and the potential molecular mechanisms involved remain unclear. The present study aimed to evaluate the expression of PRPS1 in Chinese children with B-ALL and to investigate the mechanism of action of PRPS1 in this disease. A Cell Counting Kit-8 (CCK-8) assay was performed to examine the proliferation of B-ALL Sup-B15 and Raji cells, and flow cytometric analysis was conducted to determine the cell cycle distribution and rate of apoptosis...
April 2018: Oncology Letters
Francesco Ceppi, Julie Rivers, Colleen Annesley, Navin Pinto, Julie R Park, Catherine Lindgren, Stephanie Mgebroff, Naomi Linn, Meghan Delaney, Rebecca A Gardner
BACKGROUND: The first step in the production of chimeric antigen receptor T cells is the collection of autologous T cells using apheresis technology. The procedure is technically challenging, because patients often have low leukocyte counts and are heavily pretreated with multiple lines of chemotherapy, marrow transplantation, and/or radiotherapy. Here, we report our experience of collecting T lymphocytes for chimeric antigen receptor T-cell manufacturing in pediatric and young adult patients with leukemia, non-Hodgkin lymphoma, or neuroblastoma...
March 13, 2018: Transfusion
Bibi Kulsoom, Tahir Sultan Shamsi, Nasir Ali Afsar, Zahida Memon, Nikhat Ahmed, Syed Nazrul Hasnain
Purpose: Many anticancer drugs induce apoptosis in malignant cells, and resistance to apoptosis could lead to suboptimal or no therapeutic benefit. Two cytoplasmic proteins, B-cell lymphoma protein 2 (Bcl-2)-associated X (Bax) and Bcl-2, act as a promoter and an inhibitor of apoptosis, respectively. Both Bax and Bcl-2 as well as their ratio have been regarded as prognostic markers in various cancers. However, conflicting results have been reported. A clear understanding of apoptosis has also become crucial due to reports about anti-Bcl-2 chemotherapy...
2018: Cancer Management and Research
Anna Ravn Landtblom, Hannah Bower, Therese M-L Andersson, Paul W Dickman, Jan Samuelsson, Magnus Björkholm, Sigurdur Yngvi Kristinsson, Malin Hultcrantz
To determine the risk of a wide range of second malignancies in patients with myeloproliferative neoplasms (MPNs), we conducted a large population-based study and compared the results to matched controls. From national Swedish registers, 9379 patients with MPNs diagnosed between 1973 and 2009, and 35,682 matched controls were identified as well as information on second malignancies, with follow-up until 2010. Hazard ratios (HRs) with 95 % confidence intervals (CIs) were calculated using Cox regression and a flexible parametric model...
January 30, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
Mette Skovgaard Christensen, Jesper Medom Vestergaard, Francesco d'Amore, Jette Sønderskov Gørløv, Gunnar Toft, Cecilia Høst Ramlau-Hansen, Zara Ann Stokholm, Inge Brosbøl Iversen, Mette Schou Nissen, Henrik Albert Kolstad
BACKGROUND: Styrene is an important industrial chemical that the general population is exposed to at low levels. Previous research has suggested increased occurrence of leukemia and lymphoma among reinforced plastics workers exposed at high levels of styrene. METHODS: We followed 73,036 workers of 456 small and medium sized Danish reinforced plastics companies 1968-2011 and investigated the exposure-response relation between cumulative styrene exposure and incidence of lymphohematopoietic malignancies...
March 10, 2018: Epidemiology
Xiaojun Huang, Lugui Qiu, Jie Jin, Daobin Zhou, Xiequn Chen, Ming Hou, Jianda Hu, Yu Hu, Xiaoyan Ke, Junmin Li, Yingmin Liang, Ting Liu, Yue Lv, Hanyun Ren, Aining Sun, Jianmin Wang, Chunting Zhao, Mariya Salman, Steven Sun, Angela Howes, Jingzhao Wang, Peng Wu, Jianyong Li
In the Asia-Pacific region, treatment options are limited for patients with relapsed/refractory chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL). Rituximab is widely used in this setting when purine analog-based therapies are not appropriate. We evaluated the efficacy and safety of ibrutinib compared with rituximab in a randomized, open-label phase 3 study in predominantly Asian patients with relapsed/refractory CLL/SLL. Patients (N = 160) were randomly assigned 2:1 to receive 420 mg ibrutinib (n = 106) until disease progression (PD) or unacceptable toxicity or up to six cycles of rituximab (n = 54)...
March 13, 2018: Cancer Medicine
Mengge Li, Yu Gan, Chunsun Fan, Hui Yuan, Xianjing Zhang, Yuling Shen, Qing Wang, Zihong Meng, Dengfei Xu, Hong Tu
Previous studies have focused on the relationship between hepatitis B virus (HBV) infection and non-Hodgkin lymphoma (NHL). However, the results remain inconsistent and somehow conflicting in different sub-groups. The aim of this study was to combine the findings of independent studies to comprehensively assess the association between HBV and NHL using a meta-analysis. Relevant studies were identified through structured keyword searches in PubMed, EMBASE and the China National Knowledge Infrastructure (CNKI) database and 58 studies with a total of 53,714 NHL cases and 1,778,591 controls were finally included...
March 13, 2018: Journal of Viral Hepatitis
Kelly J Butnor, Elizabeth N Pavlisko, Thomas A Sporn, Victor L Roggli
CONTEXT: - Malignant mesothelioma (MM) is a component of the BAP1 tumor predisposition syndrome. Other than in BAP1 familial studies, nonmesothelial neoplasms in individuals with MM has not been comprehensively assessed. OBJECTIVE: - To assess the spectrum and prevalence of nonmesothelial neoplasms in individuals with MM. DESIGN: - Individuals with MM and second neoplasms were identified from a database of 3900 MM cases. The expected prevalence of each type of neoplasm was calculated and compared with the actual prevalence in the study population using available Surveillance, Epidemiology, and End Results data and other published data...
March 12, 2018: Archives of Pathology & Laboratory Medicine
Yuta Ito, Shinichi Makita, Akiko Miyagi Maeshima, Shunsuke Hatta, Tomotaka Suzuki, Sayako Yuda, Suguru Fukuhara, Wataru Munakata, Tatsuya Suzuki, Dai Maruyama, Koji Izutsu
Paraneoplastic pemphigus (PNP) is a severe autoimmune blistering disease associated with an underlying malignancy, and its prognosis is poor. We herein report the first patient with B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma (B-CLL/SLL)-associated PNP successfully treated with the Bruton's tyrosine kinase inhibitor ibrutinib and rituximab. Although his PNP lesions did not improve with ibrutinib monotherapy, the combination of ibrutinib and rituximab was effective against B-CLL/SLL-associated PNP...
March 9, 2018: Internal Medicine
Khadega A Abuelgasim, Hinna Rehan, Maha Alsubaie, Nasser Al Atwi, Mohammed Al Balwi, Saeed Alshieban, Areej Almughairi
BACKGROUND: Chronic lymphocytic leukemia and chronic myeloid leukemia are the most common types of adult leukemia. However, it is rare for the same patient to suffer from both. Richter's transformation to diffuse large B-cell lymphoma is frequently observed in chronic lymphocytic leukemia. Purine analog therapy and the presence of trisomy 12, and CCND1 gene rearrangement have been linked to increased risk of Richter's transformation. The coexistence of chronic myeloid leukemia and diffuse large B-cell lymphoma in the same patient is extremely rare, with only nine reported cases...
March 11, 2018: Journal of Medical Case Reports
Yoshitaka Inoue, Shigeo Fuji, Ryuji Tanosaki, Yoshihiro Inamoto, Takashi Tanaka, Ayumu Ito, Keiji Okinaka, Saiko Kurosawa, Sung-Won Kim, Hitoshi Nakagama, Takahiro Fukuda
Adult T cell leukemia/lymphoma (ATL) is an aggressive T cell lymphoma with a poor prognosis. Although allogeneic hematopoietic stem cell transplantation (allo-HSCT) can be a curative treatment for ATL, a significant proportion of allo-HSCT recipients suffer from relapse/progression of ATL. Here we aimed to clarify the risk factors for and outcomes after posttransplant relapse/progression. We retrospectively reviewed 76 patients with ATL who received allo-HSCT at our institute. At the time of allo-HSCT, disease status was complete response in 17 patients, partial response in 29, stable disease (SD) in 18, and progressive disease (PD) in 12...
March 9, 2018: Bone Marrow Transplantation
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