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https://www.readbyqxmd.com/read/29768934/a-safety-profile-of-medications-used-to-treat-waldenstr%C3%A3-m-s-macroglobulinemia
#1
Ramón García-Sanz, Cristina Jiménez, Verónica González de la Calle, María Eugenia Sarasquete
Waldenström's macroglobulinemia (WM) is a B-cell lymphoproliferative disease with serum IgM monoclonal component and bone marrow infiltration by lymphoplasmacytic lymphoma. Traditional therapy was based on that regimens used for closely related entities, such as chronic lymphocytic leukemia or multiple myeloma. This resulted in a lack of drugs specifically approved for WM, until the discovery of the BTK inhibitors. Areas covered. Two main therapeutic attitudes are possible: 1) conventional therapies based on combinations with alkylating agents or proteasome inhibitors with steroids and anti-CD20 monoclonal antibodies, or; 2) new approaches with BTK inhibitors, usually alone...
May 17, 2018: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/29752623/catalpol-promotes-the-survival-and-vegf-secretion-of-bone-marrow-derived-stem-cells-and-their-role-in-myocardial-repair-after-myocardial-infarction-in-rats
#2
Xing'ai Ju, Degang Xue, Tongyi Wang, Baiping Ge, Yu Zhang, Zhanquan Li
Bone mesenchymal stem cells (BMSCs) transplantation has been recognized as an effective method for the treatment of myocardial infarction (MI). However, its efficacy is always restricted by the low survival of transplanted BMSCs in the ischemic myocardium. The aim of this study was to investigate the effect of catalpol pre-treatment on the survival and vascular endothelial growth factor (VEGF) secretion of BMSCs under oxygen glucose deprivation (OGD) condition and their role in myocardial repair in a rat model of MI...
May 11, 2018: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/29738359/genomic-profile-and-pathologic-features-of-diffuse-large-b-cell-lymphoma-subtype-of-methotrexate-associated-lymphoproliferative-disorder-in-rheumatoid-arthritis-patients
#3
Joaquim Carreras, Yara Yukie Kikuti, Masashi Miyaoka, Shinichiro Hiraiwa, Sakura Tomita, Haruka Ikoma, Yusuke Kondo, Sawako Shiraiwa, Kiyoshi Ando, Shinji Sato, Yasuo Suzuki, Ikuo Miura, Giovanna Roncador, Naoya Nakamura
Rheumatoid arthritis patients often develop the diffuse large B-cell lymphoma subtype of methotrexate-associated lymphoproliferative disorder (DLBCL). We characterized the genomic profile and pathologic characteristics of 20 biopsies using an integrative approach. DLBCL was associated with extranodal involvement, a high/high-intermediate international prognostic index in 53% of cases, and responded to MTX withdrawal. The phenotype was nongerminal center B-cell in 85% of samples and Epstein-Barr encoding region positive (EBER) in 65%, with a high proliferation index and intermediate MYC expression levels...
May 5, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29720207/the-t-14-18-translocation-is-absent-from-endothelial-and-follicular-dendritic-cells-of-follicular-lymphoma-fl-and-shows-heterogeneous-presence-in-preserved-fl-mantle-zones
#4
Perikles Kosmidis, Barbara Mankel, Falko Fend, Patrick Adam
BACKGROUND: The translocation t(14;18)(q32;q21) is the genetic hallmark of follicular lymphoma (FL) and can be observed in 85-90% of cases. Whether the translocation is restricted to cells with germinal center B-cell phenotype or can be observed in other cell types of the microenvironment remains debated. Of interest, cases of associated histiocytic and dendritic cell sarcomas arising in the background of FL have been shown to be clonally related and carry the t(14;18), suggesting a "transdifferentiation" of the malignant FL clone into a neoplasm of a different hematopoietic lineage...
May 2, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29697268/l-ascorbic-acid-and-%C3%AE-tocopherol-reduces-hepatotoxicity-associated-with-arsenic-trioxide-chemotherapy-by-modulating-nrf2-and-bcl2-transcription-factors-in-chang-liver-cells
#5
Radhakrishnan Chandraprabha Vineetha, Viswanathan Archana, Prakash Binu, Pettamanna Arathi, Raveendran Harikumaran Nair
Arsenic trioxide (As2 O3 ) is a promising new regimen for the treatment of acute promyelocytic leukemia (APL). The induction of oxidative stress mediated by reactive oxygen species (ROS) and excessive intracellular calcium influx are the main reasons behind As2 O3 toxicity. Since liver is the major organ for xenobiotic metabolism, it is always under stress. Antioxidant vitamins such as L-Ascorbic acid (L-AA) and α-Tocopherol (α-TOC) have been proposed to have beneficial effects against a variety of pathological conditions and are known by their free radical scavenging properties...
May 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29686228/the-observed-alteration-in-bcl2-expression-following-lithium-treatment-is-influenced-by-the-choice-of-normalization-method
#6
Damri Odeya, Agam Galila, Toker Lilah
Upregulation of B-cell CLL/lymphoma (BCL)2 expression following lithium treatment is seemingly well established and has been related to the neuroprotective property of the drug. However, while demonstrated by some (but not all) studies based on low-throughput techniques (e.g. qPCR) this effect is not reflected in high-throughput studies, such as microarrays and RNAseq. This manuscript presents a systematic review of currently available reports of lithium's effect on BCL2 expression. To our surprise, we found that the majority of the literature does not support the effect of lithium on BCL2 transcript or protein levels...
April 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29678710/pediatric-type-follicular-lymphoma-in-the-dura-a-case-report-and-literature-review
#7
Junya Yamaguchi, Seiichi Kato, Eri Iwata, Kosuke Aoki, Ryusuke Kabeya, Atsushi Natsume, Toshihiko Wakabayashi
BACKGROUND: Primary central nervous system lymphoma (PCNSL) is a relatively common tumor of the central nervous system. Although PCNSLs generally arise from the parenchyma, lymphomas arising primarily from the dura are termed dural lymphomas (DL). Mucosa-associated lymphoid tissue is the most unique histological feature of DL. Due to its rarity, clinical characteristics and treatments for DL have not been fully elucidated to date. CASE DESCRIPTION: A 31-year-old man with no past medical history presented with numbness in his left upper limb...
April 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29674644/aggressive-natural-killer-cell-leukemia-mutational-landscape-and-drug-profiling-highlight-jak-stat-signaling-as-therapeutic-target
#8
Olli Dufva, Matti Kankainen, Tiina Kelkka, Nodoka Sekiguchi, Shady Adnan Awad, Samuli Eldfors, Bhagwan Yadav, Heikki Kuusanmäki, Disha Malani, Emma I Andersson, Paavo Pietarinen, Leena Saikko, Panu E Kovanen, Teija Ojala, Dean A Lee, Thomas P Loughran, Hideyuki Nakazawa, Junji Suzumiya, Ritsuro Suzuki, Young Hyeh Ko, Won Seog Kim, Shih-Sung Chuang, Tero Aittokallio, Wing C Chan, Koichi Ohshima, Fumihiro Ishida, Satu Mustjoki
Aggressive natural killer-cell (NK-cell) leukemia (ANKL) is an extremely aggressive malignancy with dismal prognosis and lack of targeted therapies. Here, we elucidate the molecular pathogenesis of ANKL using a combination of genomic and drug sensitivity profiling. We study 14 ANKL patients using whole-exome sequencing (WES) and identify mutations in STAT3 (21%) and RAS-MAPK pathway genes (21%) as well as in DDX3X (29%) and epigenetic modifiers (50%). Additional alterations include JAK-STAT copy gains and tyrosine phosphatase mutations, which we show recurrent also in extranodal NK/T-cell lymphoma, nasal type (NKTCL) through integration of public genomic data...
April 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29674626/prognostic-significances-of-overexpression-myc-and-or-bcl2-in-r-chop-treated-diffuse-large-b-cell-lymphoma-a-systematic-review-and-meta-analysis
#9
Lu Li, Yanyan Li, Ximei Que, Xue Gao, Qian Gao, Mingxing Yu, Kaili Ma, Yanfeng Xi, Tong Wang
Numerous studies have investigated the prognostic values of MYC and/or BCL2 protein overexpression in diffuse large B-cell lymphoma (DLBCL). However, the results still demonstrate discrepancies among different studies. We aimed to do a systematic review and meta-analysis on the relationships between overexpression MYC and/or BCL2 and DLBCLs treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP). This study followed the guidelines of PRISMA and Cochrane handbook. The hazard ratios (HRs) for overall survival (OS) were pooled to estimate the main effect size...
April 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29668843/effects-of-catecholamines-on-secretion-of-interferon-tau-and-expression-of-genes-for-synthesis-of-polyamines-and-apoptosis-by-ovine-trophectoderm
#10
Mohammed A Elmetwally, Yasser Lenis, Wanjin Tang, Guoyao Wu, Fuller W Bazer
Ovine trophectoderm (oTr1) cells were used to investigate effects of epinephrine (EP), norepinephrine (NE) and dopamine (DA) on their proliferation, migration and adhesion, secretion of interferon tau (IFNT), and expression of genes for synthesis of polyamines and apoptosis. Expression of mRNAs for agmatinase (AGMAT), arginine decarboxylase (ADC), ornithine decarboxylase (ODC1) and solute carrier family 7 (SLC7A1) cationic amino acid transporter, Y + system), member 1 increased (P < 0.05) in oTr1 cells in response to EP and DA...
April 12, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29666157/cd30-expression-and-its-correlation-with-myc-and-bcl2-in-de-novo-diffuse-large-b-cell-lymphoma
#11
Qi-Xing Gong, Zhen Wang, Chong Liu, Xiao Li, Ting-Xun Lu, Jin-Hua Liang, Wei Xu, Jian-Yong Li, Zhi-Hong Zhang
AIM: CD30+ diffuse large B-cell lymphoma (DLBCL) has emerged as a new immunophenotypic variant of de novo DLBCLs. However, the prevalence of CD30 positivity is variable according to different studies, and the prognostic significance of CD30 is also controversial. This study aimed to investigate the positive expression rate and prognostic impact of CD30 in de novo DLBCLs and try to find the correlated influences. METHODS: A total of 241 patients with de novo DLBCL in east China from 2008 to 2015 were included to investigate the prevalence, clinicopathological features and outcomes of CD30+ de novo DLBCLs...
April 17, 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29666116/critical-influences-on-the-pathogenesis-of-follicular-lymphoma
#12
Ralf Küppers, Freda K Stevenson
The development of follicular lymphoma (FL) from a founder B cell with an upregulation of BCL2, via the t(14;18) translocation, to a proliferating clone, poised to undergo further transformation to an aggressive lymphoma, illustrates the opportunistic Darwinian process of tumorigenesis. Protection against apoptosis allows an innocent cell to persist and divide, with dangerous accumulation of further mutational changes, commonly involving inactivation of chromatin-modifying genes. But this is not all. FL cells reflect normal B cells in relying on expression of surface Ig...
April 17, 2018: Blood
https://www.readbyqxmd.com/read/29666005/unexpected-favorable-outcome-in-a-patient-with-high-grade-b-cell-lymphoma-with-abnormalities-of-myc-bcl6-and-bcl2-loci
#13
Thomas Adams, Deborah Fuchs, Patricia K Shadoan, Laurel Johnstone, Branden M Lau, Lee McGhan, Faiz Anwer, Hussam Al-Kateb
High grade B-cell lymphoma (HGBCL) by WHO 2016 classification requires rearrangements of MYC and BCL2 and/or BCL6, practically covering the so called "double-hit" or "triple hit" lymphomas. We report a case of HGBCL "triple-hit" lymphoma in a 64-year old female. Cytogenetic and fluorescence in situ hybridization (FISH) studies revealed complex karyotype including rearrangement of MYC to a novel, non-IG partner on chromosome 18, and rearrangement of BCL2, BCL6 and IGH as well as ins(3)(q21q27...
April 2018: Cancer Genetics
https://www.readbyqxmd.com/read/29629947/identification-of-double-hit-lymphomas-using-updated-who-criteria-insights-from-routine-myc-immunohistochemistry-in-272-consecutive-cases-of-aggressive-b-cell-lymphomas
#14
Hany Sakr, James R Cook
Aggressive lymphomas with MYC and BCL2 and/or BCL6 translocations ("double hit" lymphomas, DHL) represent a distinct diagnostic category in the updated World Health Organization (WHO) classification. The diagnostic yield of MYC immunohistochemistry (IHC) for the identification of DHL is currently uncertain. MYC IHC was performed in 272 consecutive cases of aggressive B-cell lymphoma, and results correlated with fluorescence in situ hybridization (FISH) for MYC translocations. Among 156 patients with IHC and FISH data, MYC IHC identified MYC translocations with 89% sensitivity, 38% specificity, 92% negative predictive value, and 29% positive predictive value...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29623179/co-expression-of-myc-and-bcl2-predicts-poorer-outcomes-for-relapsed-refractory-diffuse-large-b-cell-lymphoma-with-r-ice-and-intent-to-transplant
#15
Joshua Allen, Ana Lucia Ruano Mendez, Lisa Rybicki, Yazeed Sawalha, Deepa Jagadeesh, Robert Dean, Brad Pohlman, Mitchell R Smith, Eric D Hsi, Brian T Hill
Diffuse large B-cell lymphoma (DLBCL) with co-expression of MYC and BCL2 protein by immunohistochemistry (IHC) - that is, double-expresser lymphoma (DEL) - is associated with poor outcomes after standard frontline therapy. Less is known about the prognostic impact of DEL in patients with relapsed/refractory disease treated with salvage therapy and autologous stem cell transplantation (ASCT). We analyzed the outcomes of 167 patients with relapsed/refractory DLBCL treated with R-ICE (rituximab, ifosfamide, carboplatin and etoposide), of whom 111 patients (66%) underwent ASCT...
April 2018: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/29617412/tissue-inhibitor-of-metalloproteinase-3-timp-3-induces-fas-dependent-apoptosis-in-human-vascular-smooth-muscle-cells
#16
William R English, Heather Ireland-Zecchini, Andrew H Baker, Trevor D Littlewood, Martin R Bennett, Gillian Murphy
Over expression of Tissue Inhibitor of Metalloproteinases-3 (TIMP-3) in vascular smooth muscle cells (VSMCs) induces apoptosis and reduces neointima formation occurring after saphenous vein interposition grafting or coronary stenting. In studies to address the mechanism of TIMP-3-driven apoptosis in human VSMCs we find that TIMP-3 increased activation of caspase-8 and apoptosis was inhibited by expression of Cytokine response modifier A (CrmA) and dominant negative FAS-Associated protein with Death Domain (FADD)...
2018: PloS One
https://www.readbyqxmd.com/read/29600563/alendronate-induces-osteoclast-precursor-apoptosis-via-peroxisomal-dysfunction-mediated-er-stress
#17
Ning Ding, Chuan Liu, Li Yao, Yun Bai, Peng Cheng, Zhilin Li, Keyu Luo, Tieniu Mei, Jianhua Li, Junchao Xing, Xiaoliang Gao, Qinyu Ma, Jianzhong Xu, Fei Luo, Ce Dou
Nitrogen-containing bisphosphonates including alendronate (ALN) are the current first line antiresorptive drug in treating osteoporosis. In our study, we found that ALN administration impaired the secretion of platelet derived growth factor-BB (PDGF-BB), the most important angiogenic cytokines produced by preosteoclast (POC), in both sham and ovariectomized (OVX) mice. To further understand this phenomenon, we induced bone marrow macrophages (BMMs) to POCs in vitro and detected the effects of ALN particularly in POCs...
March 30, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29590547/ibrutinib-plus-venetoclax-for-the-treatment-of-mantle-cell-lymphoma
#18
COMPARATIVE STUDY
Constantine S Tam, Mary Ann Anderson, Christiane Pott, Rishu Agarwal, Sasanka Handunnetti, Rodney J Hicks, Kate Burbury, Gillian Turner, Juliana Di Iulio, Mathias Bressel, David Westerman, Stephen Lade, Martin Dreyling, Sarah-Jane Dawson, Mark A Dawson, John F Seymour, Andrew W Roberts
BACKGROUND: Both the BTK inhibitor ibrutinib and the BCL2 inhibitor venetoclax are active as monotherapy in the treatment of mantle-cell lymphoma. Complete response rates of 21% have been observed for each agent when administered as long-term continuous therapy. Preclinical models predict synergy in combination. METHODS: We conducted a single-group, phase 2 study of daily oral ibrutinib and venetoclax in patients, as compared with historical controls. Patients commenced ibrutinib monotherapy at a dose of 560 mg per day...
March 29, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29582634/characterization-of-apoptosis-in-a-breast-cancer-cell-line-after-il-10-silencing
#19
Moureq R Alotaibi, Zeinab K Hassan, Salim S Al-Rejaie, Musaad A Alshammari, Mashal M Almutairi, Ali R Alhoshani, Wael A Alanazi, Mohamed M Hafez, Othman A Al-Shabanah
Background: Breast cancer is affected by the immune system in that different cytokines play roles in its initiation and progression. Interleukin-10 (IL-10), an anti-inflammatory cytokine, is an immunosuppressive factor involved in tumorigenesis. The present study was conducted to investigate the gene silencing effect of a small interference RNA (siRNA) targeting IL-10 on the apoptotic pathway in breast cancer cell line. Methods: The siRNA targeting IL-10 and a glyceraldehyde 3-phosphate dehydrogenase (GAPDH) clone were introduced into MDA-MB-231 cells...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29581544/double-hit-or-dual-expression-of-myc-and-bcl2-in-primary-cutaneous-large-b-cell-lymphomas
#20
Sarah Menguy, Eric Frison, Martina Prochazkova-Carlotti, Stephane Dalle, Olivier Dereure, Serge Boulinguez, Sophie Dalac, Laurent Machet, Caroline Ram-Wolff, Laurence Verneuil, Audrey Gros, Béatrice Vergier, Marie Beylot-Barry, Jean-Philippe Merlio, Anne Pham-Ledard
In nodal diffuse large B-cell lymphoma, the search for double-hit with MYC and BCL2 and/or BCL6 rearrangements or for dual expression of BCL2 and MYC defines subgroups of patients with altered prognosis that has not been evaluated in primary cutaneous large B-cell lymphoma. Our objectives were to assess the double-hit and dual expressor status in a cohort of 44 patients with primary cutaneous large B-cell lymphoma according to the histological subtype and to evaluate their prognosis relevance. The 44 cases defined by the presence of more than 80% of large B-cells in the dermis corresponded to 21 primary cutaneous follicle centre lymphoma with large cell morphology and 23 primary cutaneous diffuse large B-cell lymphoma, leg type...
March 26, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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