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https://www.readbyqxmd.com/read/29352718/consolidative-radiotherapy-to-residual-masses-after-chemotherapy-is-associated-with-improved-outcome-in-diffuse-large-b-cell-lymphoma-a-retrospective-population-based-study
#1
Øystein Fluge, Bård Mannsåker, Anders Torp, Ingvil Mjaaland, Lars Helgeland, Jan Klos, Olav Mella, Sigbjørn Berentsen, Peter Meyer
BACKGROUND: The role of consolidative radiotherapy (RT) in advanced diffuse large B-cell lymphoma (DLBCL) is not established. PATIENTS AND METHODS: In a population-based retrospective analysis of patients with DLBCL in Western Norway during 2003 to 2008, 170 consecutive patients admitted to Haukeland University Hospital (HUS) and 94 to Stavanger University Hospital (SUS) were included. The mean age was 64 years (range, 17-95 years), 147 patients (56%) were male, 80 patients (30%) had stage I/II, 126 patients (48%) stage III/IV, and 57 patients (22%) had primary extranodal disease...
December 24, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29352717/should-we-use-cell-of-origin-and-dual-protein-expression-in-treating-dlbcl
#2
REVIEW
Peter A Riedell, Sonali M Smith
Treatment outcomes in diffuse large B-cell lymphoma (DLBCL) following standard R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) therapy is highly variable and dependent on a number of clinical, biologic, and genetic features. The identification of molecular heterogeneity via gene expression profiling dichotomizes patients based on the cell of origin (COO) model into germinal center B-cell-like (GCB) and activated B-cell-like (ABC) subsets, with ABC-DLBCL having a worse outcome...
December 24, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/29352515/principles-of-alemtuzumab-immunoablation-in-hematopoietic-cell-transplantation-for-non-malignant-diseases-in-children-a-review
#3
REVIEW
Gregory M T Guilcher, Ravi Shah, Shalini Shenoy
Alemtuzumab is a humanized mAb targeted to CD52. Alemtuzumab is highly immunosuppressive with the ability to deplete T and B cells (in addition to other immune cell lines). A growing understanding of the PKs, dosing, and timing of administration of alemtuzumab has allowed for the study of its use as a conditioning agent for allogeneic HCT. The highly immunosuppressive properties of the drug are particularly appealing in the setting of non-malignant HCT, where GVHD provides no clinical benefit and relapse of malignancy is not applicable...
January 19, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29352484/melatonin-ameliorates-a%C3%AE-42-induced-alteration-of-%C3%AE-app-processing-secretases-via-the-melatonin-receptor-through-the-pin1-gsk3%C3%AE-nf-%C3%AE%C2%BAb-pathway-in-sh-sy5y-cells
#4
Vorapin Chinchalongporn, Mayuri Shukla, Piyarat Govitrapong
Melatonin is involved in the physiological regulation of the β- amyloid precursor protein (βAPP) cleaving secretases which are responsible for generation of the neurotoxic amyloid beta (Aβ) peptide, one of the hallmarks of Alzheimer's disease (AD) pathology. In this study, we aimed to determine the underlying mechanisms of this regulation under pathological conditions. We establish that melatonin prevents Aβ42 -induced down-regulation of a disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) as well as up-regulation of β-site APP-cleaving enzyme 1 (BACE1) and presenilin 1 (PS1) in SH-SY5Y cell cultures...
January 20, 2018: Journal of Pineal Research
https://www.readbyqxmd.com/read/29352468/developmental-plasticity-of-gabaergic-neurotransmission-to-brainstem-motoneurons
#5
Lila Buls Wollman, Richard B Levine, Ralph F Fregosi
Nicotinic acetylcholine receptor (nAChR) signalling regulates neuronal differentiation and synaptogenesis. Here we test the hypothesis that developmental nicotine exposure (DNE) disrupts the development of GABAergic synaptic transmission to hypoglossal motoneurons (XIIMNs). GABAergic spontaneous and miniature inhibitory postsynaptic currents (sIPSC/mIPSC) were recorded from XIIMNs in brainstem slices from control and DNE rat pups of either sex, 1-5 days old, at baseline and following acute stimulation of nAChRs with nicotine...
January 20, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29352432/effect-of-membrane-composition-on-receptor-association-implications-of-cancer-lipidomics-on-erbb-receptors
#6
REVIEW
Aiswarya B Pawar, Durba Sengupta
The association of single transmembrane receptors, such as the ErbB receptors is a key event in initiating cell signaling networks. The interactions between these receptors have been well characterized for both ligand-driven and pre-formed dimers. However, the role of the membrane in modulating association is less well understood and assumes greater importance in light of altered membrane composition in diseased states. Here, we discuss how membrane composition has been observed to induce both structural and dynamic differences in receptor association...
January 19, 2018: Journal of Membrane Biology
https://www.readbyqxmd.com/read/29352371/innate-and-adaptive-t-cells-in-influenza-disease
#7
REVIEW
Simone Nüssing, Sneha Sant, Marios Koutsakos, Kanta Subbarao, Thi H O Nguyen, Katherine Kedzierska
Influenza is a major global health problem, causing infections of the respiratory tract, often leading to acute pneumonia, life-threatening complications and even deaths. Over the last seven decades, vaccination strategies have been utilized to protect people from complications of influenza, especially groups at high risk of severe disease. While current vaccination regimens elicit strain-specific antibody responses, they fail to generate cross-protection against seasonal, pandemic and avian viruses. Moreover, vaccines designed to generate influenza-specific T-cell responses are yet to be optimized...
January 20, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29352261/insight-into-the-role-of-pikk-family-members-and-nf-%C3%B0%C2%BAb-in-dnadamage-induced-senescence-and-senescence-associated-secretory-phenotype-of-colon-cancer-cells
#8
Anna Strzeszewska, Olga Alster, Grażyna Mosieniak, Agata Ciolko, Ewa Sikora
Senescence of cancer cells is an important outcome of treatment of many cancer types. Cell senescence is a permanent cell cycle arrest induced by stress conditions, including DNA damage. DNA damage activates DNA damage response (DDR), which involves members of the phosphatidylinositol 3-kinase-related kinase (PIKK) superfamily: protein kinases ATM, ATR, and DNA-PKcs. The so-far collected data indicate that ATM, with its downstream targets CHK2, p53, and p21, is the key protein involved in DDR-dependent senescence...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352241/short-tandem-repeat-analysis-after-whole-genome-amplification-of-single-b-lymphoblastoid-cells
#9
Lieselot Deleye, Ann-Sophie Vander Plaetsen, Jana Weymaere, Dieter Deforce, Filip Van Nieuwerburgh
To allow multiple genetic analyses on a single cell, whole genome amplification (WGA) is required. Unfortunately, studies comparing different WGA methods for downstream human identification Short Tandem Repeat (STR) analysis remain absent. Therefore, the aim of this work was to assess the performance of four commercially available WGA kits for downstream human identification STR profiling on a B-lymphoblastoid cell line. The performance was assessed using an input of one or three micromanipulated cells. REPLI-g showed a very low dropout rate, as it was the only WGA method in this study that could provide a complete STR profile in some of its samples...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352235/systems-modeling-accurately-predicts-responses-to-genotoxic-agents-and-their-synergism-with-bcl-2-inhibitors-in-triple-negative-breast-cancer-cells
#10
Federico Lucantoni, Andreas U Lindner, Norma O'Donovan, Heiko Düssmann, Jochen H M Prehn
Triple negative breast cancer (TNBC) is an aggressive form of breast cancer which accounts for 15-20% of this disease and is currently treated with genotoxic chemotherapy. The BCL2 (B-cell lymphoma 2) family of proteins controls the process of mitochondrial outer membrane permeabilization (MOMP), which is required for the activation of the mitochondrial apoptosis pathway in response to genotoxic agents. We previously developed a deterministic systems model of BCL2 protein interactions, DR_MOMP that calculates the sensitivity of cells to undergo mitochondrial apoptosis...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352230/histology-immunohistochemistry-and-in-situ-hybridization-reveal-overlooked-ebola-virus-target-tissues-in-the-ebola-virus-disease-guinea-pig-model
#11
Timothy K Cooper, Louis Huzella, Joshua C Johnson, Oscar Rojas, Sri Yellayi, Mei G Sun, Sina Bavari, Amanda Bonilla, Randy Hart, Peter B Jahrling, Jens H Kuhn, Xiankun Zeng
Survivors of Ebola virus infection may become subclinically infected, but whether animal models recapitulate this complication is unclear. Using histology in combination with immunohistochemistry and in situ hybridization in a retrospective review of a guinea pig confirmation-of-virulence study, we demonstrate for the first time Ebola virus infection in hepatic oval cells, the endocardium and stroma of the atrioventricular valves and chordae tendinae, satellite cells of peripheral ganglia, neurofibroblasts and Schwann cells of peripheral nerves and ganglia, smooth muscle cells of the uterine myometrium and vaginal wall, acini of the parotid salivary glands, thyroid follicular cells, adrenal medullary cells, pancreatic islet cells, endometrial glandular and surface epithelium, and the epithelium of the vagina, penis and, prepuce...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352223/zeb1-confers-chemotherapeutic-resistance-to-breast-cancer-by-activating-atm
#12
Xiang Zhang, Zhen Zhang, Qing Zhang, Quansheng Zhang, Peiqing Sun, Rong Xiang, Guosheng Ren, Shuang Yang
Although zinc finger E-box binding homeobox 1 (ZEB1) has been identified as a key factor in the regulation of breast cancer differentiation and metastasis, its potential role in modulating tumor chemoresistance has not been fully understood. Here, through the study of specimens from a large cohort of human breast cancer subjects, we showed that patients with tumors that expressed high levels of ZEB1 responded poorly to chemotherapy. Moreover, ZEB1 expression was positively correlated with expression of B-cell lymphoma-extra large (Bcl-xL) and cyclin D1, which are key components of tumor chemoresistant mechanisms...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352211/hdl-nanoparticles-targeting-sonic-hedgehog-subtype-medulloblastoma
#13
Jonathan B Bell, Jonathan S Rink, Frank Eckerdt, Jessica Clymer, Stewart Goldman, C Shad Thaxton, Leonidas C Platanias
Medulloblastoma is the most common paediatric malignant brain cancer and there is a need for new targeted therapeutic approaches to more effectively treat these malignant tumours, which can be divided into four molecular subtypes. Here, we focus on targeting sonic hedgehog (SHH) subtype medulloblastoma, which accounts for approximately 25% of all cases. The SHH subtype relies upon cholesterol signalling for tumour growth and maintenance of tumour-initiating cancer stem cells (CSCs). To target cholesterol signalling, we employed biomimetic high-density lipoprotein nanoparticles (HDL NPs) which bind to the HDL receptor, scavenger receptor type B-1 (SCARB1), depriving cells of natural HDL and their cholesterol cargo...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352201/cross-species-transcriptional-analysis-reveals-conserved-and-host-specific-neoplastic-processes-in-mammalian-glioma
#14
Nina P Connolly, Amol C Shetty, Jesse A Stokum, Ina Hoeschele, Marni B Siegel, C Ryan Miller, Anthony J Kim, Cheng-Ying Ho, Eduardo Davila, J Marc Simard, Scott E Devine, John H Rossmeisl, Eric C Holland, Jeffrey A Winkles, Graeme F Woodworth
Glioma is a unique neoplastic disease that develops exclusively in the central nervous system (CNS) and rarely metastasizes to other tissues. This feature strongly implicates the tumor-host CNS microenvironment in gliomagenesis and tumor progression. We investigated the differences and similarities in glioma biology as conveyed by transcriptomic patterns across four mammalian hosts: rats, mice, dogs, and humans. Given the inherent intra-tumoral molecular heterogeneity of human glioma, we focused this study on tumors with upregulation of the platelet-derived growth factor signaling axis, a common and early alteration in human gliomagenesis...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352190/autophagy-promotes-msc-mediated-vascularization-in-cutaneous-wound-healing-via-regulation-of-vegf-secretion
#15
Y An, W J Liu, P Xue, Y Ma, L Q Zhang, B Zhu, M Qi, L Y Li, Y J Zhang, Q T Wang, Y Jin
Vascularization deficiency caused a lot of diseases, such as diabetes ulcer and myocardial infarction. Mesenchymal stem cells (MSCs), with the self-renewal and multipotent differentiation capacities, have been used for many diseases treatment through regulation microenvironment. Numerous studies reported that MSCs transplantation could largely improve cutaneous wound healing via paracrine secretion of growth factors. However, whether MSCs take part in the angiogenesis process directly remains elusive. Previous study proved that autophagy inhibited immunosuppressive function of MSCs and prevented the degradation of MSCs function in inflammatory and senescent microenvironment...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352165/construction-of-full-length-japanese-reference-panel-of-class-i-hla-genes-with-single-molecule-real-time-sequencing
#16
Takahiro Mimori, Jun Yasuda, Yoko Kuroki, Tomoko F Shibata, Fumiki Katsuoka, Sakae Saito, Naoki Nariai, Akira Ono, Naomi Nakai-Inagaki, Kazuharu Misawa, Keiko Tateno, Yosuke Kawai, Nobuo Fuse, Atsushi Hozawa, Shinichi Kuriyama, Junichi Sugawara, Naoko Minegishi, Kichiya Suzuki, Kengo Kinoshita, Masao Nagasaki, Masayuki Yamamoto
Human leukocyte antigen (HLA) is a gene complex known for its exceptional diversity across populations, importance in organ and blood stem cell transplantation, and associations of specific alleles with various diseases. We constructed a Japanese reference panel of class I HLA genes (ToMMo HLA panel), comprising a distinct set of HLA-A, HLA-B, HLA-C, and HLA-H alleles, by single-molecule, real-time (SMRT) sequencing of 208 individuals included in the 1070 whole-genome Japanese reference panel (1KJPN). For high-quality allele reconstruction, we developed a novel pipeline, Primer-Separation Assembly and Refinement Pipeline (PSARP), in which the SMRT sequencing and additional short-read data were used...
January 19, 2018: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/29352142/fbxl10-contributes-to-the-development-of-diffuse-large-b-cell-lymphoma-by-epigenetically-enhancing-erk1-2-signaling-pathway
#17
Xiujuan Zhao, Xing Wang, Qian Li, Wanbiao Chen, Na Zhang, Yu Kong, Junqiang Lv, Lei Cao, Dan Lin, Xi Wang, Guogang Xu, Xudong Wu
Epigenetic modifiers have emerged as critical factors governing the biology of different cancers. Herein we show that FBXL10 (also called KDM2B or JHDM1B), an important member of Polycomb repressive complexes, is overexpressed in human diffuse large B-cell lymphoma (DLBCL) tissues and the derived cell lines. Knocking down FBXL10 by specific short hairpin RNAs in DLBCL cells inhibits cell proliferation and induces apoptosis in vitro. Moreover, FBXL10 depletion in DLBCL cells abrogates tumor growth in mouse xenograft models...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29352135/blocking-zika-virus-vertical-transmission
#18
Pinar Mesci, Angela Macia, Spencer M Moore, Sergey A Shiryaev, Antonella Pinto, Chun-Teng Huang, Leon Tejwani, Isabella R Fernandes, Nicole A Suarez, Matthew J Kolar, Sandro Montefusco, Scott C Rosenberg, Roberto H Herai, Fernanda R Cugola, Fabiele B Russo, Nicholas Sheets, Alan Saghatelian, Sujan Shresta, Jeremiah D Momper, Jair L Siqueira-Neto, Kevin D Corbett, Patricia C B Beltrão-Braga, Alexey V Terskikh, Alysson R Muotri
The outbreak of the Zika virus (ZIKV) has been associated with increased incidence of congenital malformations. Although recent efforts have focused on vaccine development, treatments for infected individuals are needed urgently. Sofosbuvir (SOF), an FDA-approved nucleotide analog inhibitor of the Hepatitis C (HCV) RNA-dependent RNA polymerase (RdRp) was recently shown to be protective against ZIKV both in vitro and in vivo. Here, we show that SOF protected human neural progenitor cells (NPC) and 3D neurospheres from ZIKV infection-mediated cell death and importantly restored the antiviral immune response in NPCs...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352129/molecular-characterization-of-the-grape-seeds-extract-s-effect-against-chemically-induced-liver-cancer-in-vivo-and-in-vitro-analyses
#19
Alaaeldin Ahmed Hamza, Gehan Hussein Heeba, Hanan Mohamed Elwy, Chandraprabha Murali, Raafat El-Awady, Amr Amin
The purpose of this study was to investigate the anti-cancer property of grape seed extract (GSE) during early stages of developing liver cancer using a two-stage carcinogenic model combining diethylnitrosamine (DEN) and 2-Acetyl Aminofluorene (2-AAF). Administration of GSE at doses 25, 50 and 100 mg/kg per day started at the beginning of promotion periods and continued for 14 weeks. GSE dramatically inhibited pre-neoplastic foci formation as well as significantly decreased the number and the area of placental glutathione-S-transferase in livers of DEN-2AAF-treated rats by approximately 4 & 10 fold deductions, respectively...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352124/hbv-infection-potentiates-resistance-to-s-phase-arrest-inducing-chemotherapeutics-by-inhibiting-chk2-pathway-in-diffuse-large-b-cell-lymphoma
#20
Xinying Zhao, Xudong Guo, Libo Xing, Wenqin Yue, Haisen Yin, Miaoxia He, Jianmin Wang, Jianmin Yang, Jie Chen
A considerable number of diffuse large B-cell lymphoma (DLBCL) patients are infected with hepatitis B virus (HBV), which is correlated with their poor outcomes. However, the role of HBV infection in DLBCL treatment failure remains poorly understood. Here, our data demonstrated that HBV infection was closely associated with poorer clinical prognosis independent of its hepatic dysfunction in germinal center B-cell type (GCB type) DLBCL patients. Interestingly, we found that DLBCL cells expressing hepatitis B virus X protein (HBX) did not exhibit enhanced cell growth but did show reduced sensitivity to methotrexate (MTX) and cytarabine (Ara-C), which induced S-phase arrest...
January 19, 2018: Cell Death & Disease
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