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BCL2 lymphoma

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https://www.readbyqxmd.com/read/28218232/corrigendum-thz1-targeting-cdk7-suppresses-stat-transcriptional-activity-and-sensitizes-t-cell-lymphomas-to-bcl2-inhibitors
#1
Florencia Cayrol, Pannee Praditsuktavorn, Tharu M Fernando, Nicholas Kwiatkowski, Rossella Marullo, M Nieves Calvo-Vidal, Jude Phillip, Benet Pera, Shao Ning Yang, Kaipol Takpradit, Lidia Roman, Marcello Gaudiano, Ramona Crescenzo, Jia Ruan, Giorgio Inghirami, Tinghu Zhang, Graciela Cremaschi, Nathanael S Gray, Leandro Cerchietti
No abstract text is available yet for this article.
February 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28213497/mitochondrial-damage-elicits-a-tcdd-inducible-poly-adp-ribose-polymerase-mediated-antiviral-response
#2
Tatsuya Kozaki, Jun Komano, Daiki Kanbayashi, Michihiro Takahama, Takuma Misawa, Takashi Satoh, Osamu Takeuchi, Taro Kawai, Shigeomi Shimizu, Yoshiharu Matsuura, Shizuo Akira, Tatsuya Saitoh
The innate immune system senses RNA viruses by pattern recognition receptors (PRRs) and protects the host from virus infection. PRRs mediate the production of immune modulatory factors and direct the elimination of RNA viruses. Here, we show a unique PRR that mediates antiviral response. Tetrachlorodibenzo-p-dioxin (TCDD)-inducible poly(ADP ribose) polymerase (TIPARP), a Cysteine3 Histidine (CCCH)-type zinc finger-containing protein, binds to Sindbis virus (SINV) RNA via its zinc finger domain and recruits an exosome to induce viral RNA degradation...
February 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28212447/diffuse-large-b-cell-lymphoma-with-concurrent-high-myc-and-bcl2-expression-shows-evidence-of-active-b-cell-receptor-signaling-by-quantitative-immunofluorescence
#3
Agata M Bogusz, Alexandra E Kovach, Long P Le, Derek Feng, Richard H G Baxter, Aliyah R Sohani
B-cell receptor (BCR)-mediated signaling plays an important role in the pathogenesis of a subset of diffuse large B-cell lymphoma (DLBCL), and novel agents targeting this pathway are now in clinical use. We have previously identified a signature of active BCR signaling on formalin-fixed paraffin-embedded specimens using quantitative immunofluorescence, allowing for identification of patients who might benefit from anti-BCR therapies. We sought to characterize the clinicopathologic significance of active BCR signaling in DLBCL by correlating measures of signaling intensity with clinical features and various tumor cell characteristics...
2017: PloS One
https://www.readbyqxmd.com/read/28209136/bcl-2-and-myc-gain-amplification-is-correlated-with-central-nervous-system-involvement-in-diffuse-large-b-cell-lymphoma-at-leukemic-phase
#4
Dehui Zou, Shuhua Yi, Rui Cui, Wei Liu, Chengwen Li, Shizhen Zhong, Zhen Yu, Zengjun Li, Rui Lv, Kun Ru, Huijun Wang, Gang An, Yan Xu, Lugui Qiu
BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) of leukemic phase is a rare clinical manifestation, but is highly prevalent with central nervous system involvement (CNSI). Little is known about this rare clinical observation. METHODS: We reviewed the clinical characteristics of 40 DLBCL patients with leukemic phase identified by flow cytometry and analyzed BCL2 and MYC aberrations by fluorescence in situ hybridization. RESULTS: The median age of these 40 patients was 46 years (range, 15-75) with 19 men patients...
February 16, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28193280/functional-role-of-alk-related-signal-cascades-on-modulation-of-epithelial-mesenchymal-transition-and-apoptosis-in-uterine-carcinosarcoma
#5
H Inoue, M Hashimura, M Akiya, R Chiba, M Saegusa
BACKGROUND: Anaplastic lymphoma kinase (ALK), which is a receptor tyrosine kinase, is essentially and transiently expressed in the developing nervous system. Recently, the deregulated expression of full-length ALK has been observed in some primary solid tumors, but little is known about its involvement in the tumorigenesis of uterine carcinosarcomas (UCSs). Here we examined the functional role of the ALK gene in UCSs. METHODS: Regulation and function of the ALK gene were assessed using two endometrial carcinoma cell lines...
February 14, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28179288/aurora-b-inhibitor-tak-901-synergizes-with-bcl-xl-inhibition-by-inducing-active-bax-in-cancer-cells
#6
Saomi Murai, Jennifer Matuszkiewicz, Yuumi Okuzono, Hiroyuki Miya, Ron DE Jong
BACKGROUND: Aurora B kinase plays an essential role in chromosome segregation and cytokinesis, and is dysregulated in many cancer types, making it an attractive therapeutic target. TAK-901 is a potent aurora B inhibitor that showed efficacy in both in vitro and in vivo oncology models. MATERIALS AND METHODS: We conducted a synthetic lethal siRNA screening to identify the genes that, when silenced, can potentiate the cell growth-inhibitory effect of TAK-901. RESULTS: B-cell lymphoma-extra large (BCL-xL) depletion by siRNA or chemical inhibition synergized with TAK-901 in cancer cell lines...
2017: Anticancer Research
https://www.readbyqxmd.com/read/28164440/effect-of-human-umbilical-cord-blood-mesenchymal-stem-cells-administered-by-intravenous-or-intravitreal-routes-on-cryo-induced-retinal-injury
#7
Eman M Mohamed, Shaimaa A Abdelrahman, Samia Hussein, Sally M Shalaby, Hala Mosaad, Ahmed M B Awad
Traumatic optic neuropathy is an important cause of severe vision loss. So, many attempts were performed to transplant stem cells systemically or locally to regenerate the injured retina. In this study, we investigated the effect of human umbilical cord blood mesenchymal stem cells (hUBMSCs) on histological structure, apoptotic, antiapoptotic, oxidant and antioxidant markers in an experimental model of cryo-induced retinal damage in mice. Forty-eight mice were included with 4 major groups; group I contained 18 mice as controls...
February 5, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28154089/genetic-polymorphism-at-bcl2-as-a-predictor-for-r-chop-efficacy-in-patients-with-diffuse-large-b-cell-lymphoma
#8
Morteza Bashash, Joseph M Connors, Randy D Gascoyne, Barbara Meissner, Johanna M Schuetz, Stephen Leach, Graham W Slack, Brian R Berry, Howard Hu, Laurie H Sehn, Angela R Brooks-Wilson, John J Spinelli
No abstract text is available yet for this article.
February 2, 2017: Haematologica
https://www.readbyqxmd.com/read/28138710/moscatilin-induces-apoptosis-of-pancreatic-cancer-cells-via-reactive-oxygen-species-and-the-jnk-sapk-pathway
#9
Lei Zhang, Yuan Fang, Xue-Feng Xu, Da-Yong Jin
Moscatilin is a bibenzyl derivative extracted from the Dendrobium aurantiacum var. denneanum, which has traditionally been used as an immunomodulatory treatment in China. The present study was designed to determine whether moscatilin is a pro‑apoptotic agent in pancreatic cancer, and to elucidate the underlying mechanisms. The apoptotic and anti‑proliferative effects of moscatilin on pancreatic cancer cells were determined in vitro using biochemical assays, such as the MTT assay, colony formation assay, Hoechst staining and DNA fragmentation assay, and in vivo using Panc‑1 pancreatic cancer xenografts...
January 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28134252/thz1-targeting-cdk7-suppresses-stat-transcriptional-activity-and-sensitizes-t-cell-lymphomas-to-bcl2-inhibitors
#10
Florencia Cayrol, Pannee Praditsuktavorn, Tharu M Fernando, Nicholas Kwiatkowski, Rosella Marullo, M Nieves Calvo-Vidal, Jude Phillip, Benet Pera, Shao Ning Yang, Kaipol Takpradit, Lidia Roman, Marcello Gaudiano, Ramona Crescenzo, Jia Ruan, Giorgio Inghirami, Tinghu Zhang, Graciela Cremaschi, Nathanael S Gray, Leandro Cerchietti
Peripheral T-cell lymphomas (PTCL) are aggressive diseases with poor response to chemotherapy and dismal survival. Identification of effective strategies to target PTCL biology represents an urgent need. Here we report that PTCL are sensitive to transcription-targeting drugs, and, in particular, to THZ1, a covalent inhibitor of cyclin-dependent kinase 7 (CDK7). The STAT-signalling pathway is highly vulnerable to THZ1 even in PTCL cells that carry the activating STAT3 mutation Y640F. In mutant cells, CDK7 inhibition decreases STAT3 chromatin binding and expression of highly transcribed target genes like MYC, PIM1, MCL1, CD30, IL2RA, CDC25A and IL4R...
January 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/28130250/the-bcl2-inhibitor-venetoclax-is-active-in-non-hodgkin-lymphoma
#11
(no author information available yet)
Venetoclax has single-agent antitumor activity in a range of non-Hodgkin lymphoma (NHL) subtypes.
January 27, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28123545/increased-expression-of-s100a6-promotes-cell-proliferation-in-gastric-cancer-cells
#12
Xiao-Hong Wang, Hong Du, Lin Li, Duan-Fang Shao, Xi-Yao Zhong, Ying Hu, Yi-Qiang Liu, Xiao-Fang Xing, Xiao-Jing Cheng, Ting Guo, Shen Li, Zi-Yu Li, Zhao-De Bu, Xian-Zi Wen, Lian-Hai Zhang, Jia-Fu Ji
S100A6 is involved in regulating the progression of cancer. S100A6 can regulate the dynamics of cytoskeletal constituents, cell growth and differentiation by interacting with binding or target proteins. The present study investigated whether S100A6 affects cell proliferation in gastric cancer cells by stimulating several downstream factors. Firstly, the expression and localization of S100A6 were investigated using immunohistochemical staining, an immunoelectron microscopy and laser confocal scanning. A ChIP-Chip assay was performed to determine the downstream factors of S100A6 using promoter Chip analysis, including approximately the -800 to +200 regions around the transcription starting point...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28123519/role-of-gambogic-acid-and-nai-131-in-a549-ddp-cells
#13
Jing Huang, Xiaoli Zhu, Huan Wang, Shuhua Han, Lu Liu, Yan Xie, Daozhen Chen, Qiang Zhang, Li Zhang, Yue Hu
Resistance to platinum in tumor tissue is a considerable barrier against effective lung cancer treatment. Radionuclide therapy is the primary adjuvant treatment, however, the toxic side effects limit its dosage in the clinical setting. Therefore, the present study aimed to determine whether an NaI(131) radiosensitizer could help reduce the toxic side effects of radionuclide therapy. In vitro experiments were conducted to determine whether NaI(131) can inhibit platinum resistance in A549/DDP cells, which are cisplatin-resistant non-small cell lung cancer cells, and whether gambogic acid (GA) is an effective NaI(131) radiosensitizer...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28122582/primary-extranodal-marginal-zone-lymphoma-of-mucosa-associated-lymphoid-tissue-with-multiple-pure-ground-glass-opacities-a-case-report
#14
Xuebing Ding, Takashi Makino, Satoshi Koezuka, Takashi Azumi, Hajime Otsuka, Yoshinobu Hata, Yuichi Shinya, Naobumi Tochigi, Kazutoshi Shibuya, Akira Iyoda
BACKGROUND: Primary pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma is a low-grade B cell lymphoma that is a type of non-Hodgkin lymphoma and a type of primary pulmonary malignant lymphoma. MALT lymphomas affecting the lung show various findings on chest computed tomography, which range from typical nodules or areas of consolidation to findings that are extremely rare in pulmonary MALT lymphomas, such as pure ground-glass opacities throughout the lung. CASE PRESENTATION: A 35-year-old woman was found to have a few shadows with ground glass opacities on chest computed tomography (CT) in 2012...
January 25, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28100580/venetoclax-in-patients-with-previously-treated-chronic-lymphocytic-leukemia
#15
Andrew W Roberts, Stephan Stilgenbauer, John F Seymour, David C S Huang
Venetoclax is the first BCL2 inhibitor to enter routine clinical practice. It is an orally bioavailable small molecule that binds BCL2 very specifically. Acting as a pharmacological mimic of the proteins that initiate apoptosis (a so-called BH3-mimetic), venetoclax rapidly induces apoptosis in chronic lymphocytic leukemia (CLL) cells which express high levels of BCL2 and rely on it to maintain their survival. As a single agent, daily venetoclax treatment induced durable responses in 79% of patients with relapsed or refractory CLL or small lymphocytic lymphoma in a Phase 1 study, including complete remissions in 20% of patients...
January 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28095352/the-relationship-of-rel-proto-oncogene-to-pathobiology-and-chemoresistance-in-follicular-and-transformed-follicular-lymphoma
#16
Xiaozhou Hu, Esra Baytak, Jinnan Li, Burcu Akman, Kaan Okay, Genfu Hu, Anna Scuto, Wenyan Zhang, Can Küçük
Follicular lymphoma (FL) is a common type of indolent lymphoma that occasionally transforms to more aggressive B-cell lymphomas. These transformed follicular lymphomas (tFL) are often associated with chemoresistance whose mechanisms are currently unknown. REL, a proto-oncogene located on frequently amplified 2p16.1-p15 locus, promotes tumorigenesis in many cancer types through deregulation of the NF-κB pathway; however, its role in FL pathobiology or chemoresistance has not been addressed. Here, we evaluated REL gene copy number by q-PCR on FFPE FL tumor samples, and observed REL amplification in 30...
January 9, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28089635/venetoclax-plus-rituximab-in-relapsed-or-refractory-chronic-lymphocytic-leukaemia-a-phase-1b-study
#17
John F Seymour, Shuo Ma, Danielle M Brander, Michael Y Choi, Jacqueline Barrientos, Matthew S Davids, Mary Ann Anderson, Anne W Beaven, Steven T Rosen, Constantine S Tam, Betty Prine, Suresh K Agarwal, Wijith Munasinghe, Ming Zhu, L Leanne Lash, Monali Desai, Elisa Cerri, Maria Verdugo, Su Young Kim, Rod A Humerickhouse, Gary B Gordon, Thomas J Kipps, Andrew W Roberts
BACKGROUND: Selective BCL2 inhibition with venetoclax has substantial activity in patients with relapsed or refractory chronic lymphocytic leukaemia. Combination therapy with rituximab enhanced activity in preclinical models. The aim of this study was to assess the safety, pharmacokinetics, and activity of venetoclax in combination with rituximab. METHODS: Adult patients with relapsed or refractory chronic lymphocytic leukaemia (according to the 2008 Modified International Workshop on CLL guidelines) or small lymphocytic lymphoma were eligible for this phase 1b, dose-escalation trial...
February 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28069569/the-crebbp-acetyltransferase-is-a-haploinsufficient-tumor-suppressor-in-b-cell-lymphoma
#18
Jiyuan Zhang, Sofija Vlasevska, Victoria A Wells, Sarah Nataraj, Antony B Holmes, Romain Duval, Stefanie N Meyer, Tongwei Mo, Katia Basso, Paul K Brindle, Shafinaz Hussein, Riccardo Dalla-Favera, Laura Pasqualucci
Inactivating mutations of the CREBBP acetyltransferase are highly frequent in diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL), the two most common germinal-center (GC) derived cancers. However, the role of CREBBP inactivation in lymphomagenesis remains unclear. Here we show that CREBBP regulates enhancer/super-enhancer networks with central roles in GC/post-GC cell fate decisions, including genes involved in signal transduction by the B-cell receptor and CD40 receptor, transcriptional control of GC and plasma cell development, and antigen presentation...
January 9, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28061782/double-hit-lymphomas-clinical-morphological-immunohistochemical-and-cytogenetic-study-in-a-series-of-brazilian-patients-with-high-grade-non-hodgkin-lymphoma
#19
Cristiano Claudino Oliveira, Helena Maciel-Guerra, Luan Kucko, Eric Jun Hirama, Américo Delgado Brilhante, Francisco Carlos Quevedo, Isabela Werneck da Cunha, Fernando Augusto Soares, Ligia Niero-Melo, Patrícia Pintor Dos Reis, Maria Aparecida Custodio Domingues
BACKGROUND: Double-hit lymphomas (DHL) are rare high-grade neoplasms characterized by two translocations: one involving the gene MYC and another involving genes BCL2 or BCL6, whose diagnosis depends on cytogenetic examination. This research studied DHL and morphological and/or immunophenotypic factors associated with the detection of these translocations in a group of high-grade non-Hodgkin lymphoma cases. METHOD: Clinical and morphological reviews of 120 cases diagnosed with diffuse large B-cell lymphoma and Burkitt lymphoma were conducted...
January 7, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28057912/mir-340-inhibits-proliferation-and-induces-apoptosis-in-gastric-cancer-cell-line-sgc-7901-possibly-via-the-akt-pathway
#20
Jinzhong Yu, Ruijie Wang, Jianshe Chen, Jinfeng Wu, Zhongqin Dang, Qinsheng Zhang, Bo Li
BACKGROUND Gastric cancer is among the most common types of cancer, with high morbidity and mortality. MicroRNAs (miRNAs) play vital roles in the tumorigenesis and biology of gastric cancer. This study aimed to reveal the role of miR-340 in gastric cancer cell proliferation and apoptosis and to elucidate the potential mechanisms. MATERIAL AND METHODS Human gastric cancer cells SGC-7901 were used in this study for cell transfection with miR-340 mimic or inhibitor. After transfection, cell viability, proliferation, and apoptosis were examined by MTT, BrdU, and flow cytometry assays, respectively...
January 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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