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Mantle cell

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https://www.readbyqxmd.com/read/28329770/antigen-presentation-profiling-reveals-recognition-of-lymphoma-immunoglobulin-neoantigens
#1
Michael S Khodadoust, Niclas Olsson, Lisa E Wagar, Ole A W Haabeth, Binbin Chen, Kavya Swaminathan, Keith Rawson, Chih Long Liu, David Steiner, Peder Lund, Samhita Rao, Lichao Zhang, Caleb Marceau, Henning Stehr, Aaron M Newman, Debra K Czerwinski, Victoria E H Carlton, Martin Moorhead, Malek Faham, Holbrook E Kohrt, Jan Carette, Michael R Green, Mark M Davis, Ronald Levy, Joshua E Elias, Ash A Alizadeh
Cancer somatic mutations can generate neoantigens that distinguish malignant from normal cells. However, the personalized identification and validation of neoantigens remains a major challenge. Here we discover neoantigens in human mantle-cell lymphomas by using an integrated genomic and proteomic strategy that interrogates tumour antigen peptides presented by major histocompatibility complex (MHC) class I and class II molecules. We applied this approach to systematically characterize MHC ligands from 17 patients...
March 22, 2017: Nature
https://www.readbyqxmd.com/read/28327603/first-evidence-for-temporary-and-permanent-adhesive-systems-in-the-stalked-barnacle-cyprid-octolasmis-angulata
#2
Fook Choy Yap, Wey-Lim Wong, Aaron G Maule, Gerard P Brennan, Ving Ching Chong, Lee Hong Susan Lim
Although there have been extensive studies on the larval adhesion of acorn barnacles over the past few decades, little is known about stalked barnacles. For the first time, we describe the larval adhesive systems in the stalked barnacle, Octolasmis angulata and the findings differ from previous reports of the temporary (antennulary) and cement glands in thoracican barnacles. We have found that the temporary adhesives of cyprid are produced by the clustered temporary adhesive glands located within the mantle, instead of the specialised hypodermal glands in the second antennular segment as reported in the acorn barnacles...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28324286/prolymphocytic-leukemia-new-insights-in-diagnosis-and-in-treatment
#3
REVIEW
Aude Collignon, Anne Wanquet, Elsa Maitre, Edouard Cornet, Xavier Troussard, Thérèse Aurran-Schleinitz
PURPOSE OF REVIEW: We aimed to produce a comprehensive update on clinical and biological data regarding two rare lymphoid neoplasms, B and T prolymphocytic leukemias, and assess therapeutic management in the light of new molecular insights and the advent of targeted therapies. RECENT FINDINGS: B cell prolymphocytic leukemia (B-PLL) diagnosis remains challenging in the absence of clear immunophenotypic or cytogenetic signature and overlap with mantle cell lymphoma...
April 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28324160/regulation-of-blood-oxygen-transport-in-hibernating-mammals
#4
Inge G Revsbech, Angela Fago
Along with the periodic reductions in O2 requirements of mammalian hibernators during winter, the O2 affinity of the blood of mammalian hibernators is seasonally regulated to help match O2 supply to consumption, contributing to limit tissue oxidative stress, particularly at arousals. Specifically, mammalian hibernators consistently show an overall increase in the blood-O2 affinity, which causes a decreased O2 unloading to tissues, while having similar or lower tissue O2 tensions during hibernation. This overview explores how the decreased body temperature and concentration of red blood cell 2,3-diphosphoglycerate (DPG) that occur in hibernation contribute separately or in combination to the concurrent increase in the O2 affinity of the hemoglobin, the O2 carrier protein of the blood...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28319020/in%C3%A2-vitro-preparation-and-assessment-of-radical-reducing-peptide-from-octopus-aegina-using-digestive-proteases
#5
Sekar Sudhakar, Rasool Abdul Nazeer
Antioxidant peptides protect biological macromolecules against radical damages. The use of these peptides was evaluated using free radicals scavenging assays [2,2-diphenyl-1 picrylhydrazyl (DPPH) and hydroxyl] with the help of UV-visible and electron spin resonance (ESR) spectroscopy methods. The Octopus aegina mantle protein were tested upon hydrolysis using gastrointestinal enzymes up to 12 h, where pepsin hydrolysate exhibited superior properties (DPPH: 44.39±0.67% and hydroxyl: 38.84±1.07%) compared with trypsin and α-chymotrypsin...
March 16, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28314699/safety-and-tolerability-of-idelalisib-lenalidomide-and-rituximab-in-relapsed-and-refractory-lymphoma-the-alliance-for-clinical-trials-in-oncology-a051201-and-a051202-phase-1-trials
#6
Sonali M Smith, Brandelyn N Pitcher, Sin-Ho Jung, Nancy L Bartlett, Nina Wagner-Johnston, Steven I Park, Kristy L Richards, Amanda F Cashen, Anthony Jaslowski, Scott E Smith, Bruce D Cheson, Eric Hsi, John P Leonard
BACKGROUND: A new generation of biological and targeted agents might potentially replace traditional cytotoxic agents in lymphoma. Lenalidomide plus rituximab was felt to be a safe and promising backbone based on available data. Idelalisib is an oral phosphatidylinositol 3-kinase delta (PI3Kδ) inhibitor that has promising activity as a monotherapy in refractory indolent lymphomas. The primary objective of these two trials was to determine the maximum tolerated dose of lenalidomide in combination with rituximab and idelalisib in relapsed follicular and mantle cell lymphoma...
March 14, 2017: Lancet Haematology
https://www.readbyqxmd.com/read/28303902/ms4a4a-a-novel-cell-surface-marker-for-m2-macrophages-and-plasma-cells
#7
Ratna Sanyal, Maria J Polyak, Jonathan Zuccolo, Mandip Puri, Lili Deng, Luc Roberts, Ania Zuba, Jan Storek, Joanne M Luider, Ellen M Sundberg, Adnan Mansoor, Eva Baigorri, Michael P Chu, Andrew R Belch, Linda M Pilarski, Julie P Deans
MS4A4A is a member of the membrane-spanning, 4 domain family, subfamily A (MS4A) that includes CD20 (MS4A1), FcRβ (MS4A2) and Htm4 (MS4A3). Like the first three members of this family, transcription of MS4A4A appears to be limited to hematopoietic cells. To evaluate expression of the MS4A4A protein in hematopoietic cell lineages and subsets we generated monoclonal antibodies against extracellular epitopes for use in flow cytometry. In human peripheral blood we found that MS4A4A is expressed at the plasma membrane in monocytes but not in granulocytes or lymphocytes...
March 17, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28296749/gastrointestinal-involvement-by-mantle-cell-lymphoma-observed-by-endoscopy-a-case-report
#8
De-Ming Li, Yue-Ping Jiang
INTRODUCTION: Mantle cell lymphoma (MCL) is a subtype of non-Hodgkin B-cell lymphoma, accounting for 6% of all non-Hodgkin lymphoma. The typical appearance of intestinal MCL is multiple lymphomatous polyposis, whereas presentation as protruding lesions is uncommon. We herein report the case of a 64-year-old male patient who was admitted to our hospital with epigastric pains. On endoscopy, submucosal neoplasma were identified in the gastric antrum, the duodenal bulb, and the rectum. On endoscopic ultrasonography (EUS) (OLYMPUS EUS EU-ME2, Miniprobe sonography), the lesions were homogeneously hypoechoic and originated from the submucous layer or muscularis mucosa...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28296741/a-cyclin-d1-positive-diffuse-large-b-cell-lymphoma-of-germinal-center-b-cell-like-subtype-in-the-right-tonsil-a-rare-case-report
#9
Changrui Jiang, Xiuying Shi, Chuifeng Fan
INTRODUCTION: Cyclin D1-positive tumor cells are commonly found in mantle cell lymphoma but they are very rare in diffuse large B-cell lymphoma. CLINICAL FINDINGS/PATIENT CONCERNS: Here we present a rare case of cyclin D1-positive diffuse large B-cell lymphoma in the right tonsil of a 50-year-old man. Computed tomographic imaging detected a mass, about 2.5 cm × 1.8 cm in size, in the left side of the oropharynx. DIAGNOSES: Microscopically, the tumor cells were located under the pharyngeal mucosa and diffusely arranged...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28295729/targeting-of-b-cell-receptor-signalling-in-b-cell-malignancies
#10
M Jerkeman, M Hallek, M Dreyling, C Thieblemont, E Kimby, L Staudt
Pharmacological agents that inhibit enzymes of the B-cell receptor (BCR) pathway are of increasing importance in the treatment of B-cell malignancies. These include inhibitors of Bruton tyrosine kinase (BTK), phosphatidylinositol 3-kinase (PI3K), splenic tyrosine kinase and protein kinase Cβ. Two agents are already approved in the USA and Europe: ibrutinib, a BTK inhibitor, for the treatment of chronic lymphatic leukaemia (CLL), mantle cell lymphoma (MCL) and Waldenström's macroglobulinemia; and idelalisib, a PI3Kδ inhibitor, for the treatment of CLL and follicular lymphoma...
March 14, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28295185/dual-targeting-of-mcl1-and-noxa-as-effective-strategy-for-treatment-of-mantle-cell-lymphoma
#11
Elisabeth Höring, Arnau Montraveta, Simon Heine, Markus Kleih, Lea Schaaf, Matthias C Vöhringer, Anna Esteve-Arenys, Gael Roué, Dolors Colomer, Elias Campo, German Ott, Walter E Aulitzky, Heiko van der Kuip
Imbalances in the composition of BCL2 family proteins contribute to tumourigenesis and therapy resistance of mantle cell lymphoma (MCL), making these proteins attractive therapy targets. We studied the efficiency of dual targeting the NOXA/MCL1 axis by combining fatty acid synthase inhibitors (NOXA stabilization) with the CDK inhibitor Dinaciclib (MCL1 reduction). This combination synergistically induced apoptosis in cell lines and primary MCL cells and led to almost complete inhibition of tumour progression in a mouse model...
March 14, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28291392/new-molecular-assay-for-the-proliferation-signature-in-mantle-cell-lymphoma-applicable-to-formalin-fixed-paraffin-embedded-biopsies
#12
David W Scott, Pau Abrisqueta, George W Wright, Graham W Slack, Anja Mottok, Diego Villa, Pedro Jares, Hilka Rauert-Wunderlich, Cristina Royo, Guillem Clot, Magda Pinyol, Merrill Boyle, Fong Chun Chan, Rita M Braziel, Wing C Chan, Dennis D Weisenburger, James R Cook, Timothy C Greiner, Kai Fu, German Ott, Jan Delabie, Erlend B Smeland, Harald Holte, Elaine S Jaffe, Christian Steidl, Joseph M Connors, Randy D Gascoyne, Andreas Rosenwald, Louis M Staudt, Elias Campo, Lisa M Rimsza
Purpose Mantle cell lymphoma is an aggressive B-cell neoplasm that displays heterogeneous outcomes after treatment. In 2003, the Lymphoma/Leukemia Molecular Profiling Project described a powerful biomarker-the proliferation signature-using gene expression in fresh frozen material. Herein, we describe the training and validation of a new assay that measures the proliferation signature in RNA derived from routinely available formalin-fixed paraffin-embedded (FFPE) biopsies. Methods Forty-seven FFPE biopsies were used to train an assay on the NanoString platform, using microarray gene expression data of matched fresh frozen biopsies as a gold standard...
March 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28291388/lymphoma-remissions-caused-by-anti-cd19-chimeric-antigen-receptor-t-cells-are-associated-with-high-serum-interleukin-15-levels
#13
James N Kochenderfer, Robert P T Somerville, Tangying Lu, Victoria Shi, Adrian Bot, John Rossi, Allen Xue, Stephanie L Goff, James C Yang, Richard M Sherry, Christopher A Klebanoff, Udai S Kammula, Marika Sherman, Arianne Perez, Constance M Yuan, Tatyana Feldman, Jonathan W Friedberg, Mark J Roschewski, Steven A Feldman, Lori McIntyre, Mary Ann Toomey, Steven A Rosenberg
Purpose T cells genetically modified to express chimeric antigen receptors (CARs) targeting CD19 (CAR-19) have potent activity against acute lymphoblastic leukemia, but fewer results supporting treatment of lymphoma with CAR-19 T cells have been published. Patients with lymphoma that is chemotherapy refractory or relapsed after autologous stem-cell transplantation have a grim prognosis, and new treatments for these patients are clearly needed. Chemotherapy administered before adoptive T-cell transfer has been shown to enhance the antimalignancy activity of adoptively transferred T cells...
March 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28287430/targeted-drugs-as-maintenance-therapy-after-autologous-stem-cell-transplantation-in-patients-with-mantle-cell-lymphoma
#14
REVIEW
Fengting Yan, Ajay K Gopal, Solomon A Graf
The treatment landscape for mantle cell lymphoma (MCL) is rapidly evolving toward the incorporation of novel and biologically targeted pharmaceuticals with improved disease activity and gentler toxicity profiles compared with conventional chemotherapeutics. Upfront intensive treatment of MCL includes autologous stem cell transplantation (SCT) consolidation aimed at deepening and lengthening disease remission, but subsequent relapse occurs. Maintenance therapy after autologous SCT in patients with MCL in remission features lower-intensity treatments given over extended periods to improve disease outcomes...
March 10, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28284458/p53-dysregulation-in-b-cell-malignancies-more-than-a-single-gene-in-the-pathway-to-hell
#15
REVIEW
B Tessoulin, M Eveillard, A Lok, D Chiron, P Moreau, M Amiot, A Moreau-Aubry, S Le Gouill, C Pellat-Deceunynck
TP53 deletion or mutation is frequent in B-cell malignancies and is associated with a low response rate. We describe here the p53 landscape in B-cell malignancies, from B-Acute Lymphoblastic Leukemia to Plasma Cell Leukemia, by analyzing incidence of gain or loss of function of actors both upstream and within the p53 pathway, namely MYC, RAS, ARF, MDM2, ATM and TP53. Abnormalities are not equally distributed and their incidence is highly variable among malignancies. Deletion and mutation, usually associated, of ATM or TP53 are frequent in Diffuse Large B-Cell Lymphoma and Mantle Cell Lymphoma...
March 4, 2017: Blood Reviews
https://www.readbyqxmd.com/read/28280994/detection-of-myd88-l265p-and-whim-like-cxcr4-mutation-in-patients-with-igm-monoclonal-gammopathy-related-disease
#16
Xin-Xin Cao, Qi Meng, Hao Cai, Tian-Hua He, Cong-Li Zhang, Wei Su, Jian Sun, Yue Li, Wei Xu, Dao-Bin Zhou, Jian Li
A broad spectrum of diseases are associated with IgM monoclonal gammopathy, including Waldenstrom macroglobulinemia (WM), various types of B cell non-Hodgkin's lymphoma (NHL), multiple myeloma (MM), primary amyloidosis (AL), and monoclonal gammopathy of undetermined significance (MGUS); these are called IgM monoclonal gammopathy related diseases (IgM-RD). We investigated MYD88 L265P and WHIM-like CXCR4 mutations in various IgM-RD. Patients with serum immunofixation electrophoresis confirmed IgM monoclonal gammopathy who had enough material for DNA extraction and presented between January 2008 and October 2016 at Peking Union Medical College Hospital were enrolled in this cohort...
March 9, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28280925/a-soxc-gene-related-to-larval-shell-development-and-co-expression-analysis-of-different-shell-formation-genes-in-early-larvae-of-oyster
#17
Gang Liu, Pin Huan, Baozhong Liu
Among the potential larval shell formation genes in mollusks, most are expressed in cells surrounding the shell field during the early phase of shell formation. The only exception (cgi-tyr1) is expressed in the whole larval mantle and thus represents a novel type of expression pattern. This study reports another gene with such an expression pattern. The gene encoded a SoxC homolog of the Pacific oyster Crassostrea gigas and was named cgi-soxc. Whole-mount in situ hybridization revealed that the gene was highly expressed in the whole larval mantle of early larvae...
March 9, 2017: Development Genes and Evolution
https://www.readbyqxmd.com/read/28278702/kr%C3%A3-ppel-like-factor-4-contributes-to-the-pathogenesis-of-mantle-cell-lymphoma
#18
Xin-Yu Li, Ling-Yun Geng, Xiang-Xiang Zhou, Na Wei, Xiao-Sheng Fang, Ying Li, Xin Wang
Mantle cell lymphoma (MCL) is an aggressive subtype of B-cell non-Hodgkin lymphoma (NHL) with poor prognosis. Krüppel-like factor 4 (KLF4) has been reported as a bi-regulator in malignancies, but little is known about its role in MCL. Here, we showed that KLF4 was downregulated in three MCL cell lines and lymph nodes from MCL patients, which resulted in a negative prognosis. We also found that the regulation of KLF4 could inhibit the proliferation and induce apoptosis of Jeko-1 cells. The lentivirally over-expressed KLF4 protein was found bind to β-catenin and could inhibit downstream molecules such as cyclinD1 and c-Myc...
February 28, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28270940/synchronous-occurrence-of-chronic-myeloid-leukemia-and-mantle-cell-lymphoma
#19
Prajwol Pathak, Ying Li, Brian Allen Gray, William Stratford May, Merry Jennifer Markham
Chronic myeloid leukemia (CML) and mantle cell lymphoma (MCL) are hematologic malignancies that originate from different oligopotent progenitor stem cells, namely, common myeloid and lymphoid progenitor cells, respectively. Although blastic transformation of CML can occur in the lymphoid lineage and CML has been related to non-Hodgkin lymphoma on transformation, to our knowledge, de novo and synchronous occurrence of CML and MCL has not been reported. Herein, we report the first case of synchronous CML and MCL in an otherwise healthy 38-year-old man...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/28270353/mantle-cell-lymphoma-presenting-as-multiple-lymphomatous-polyposis-of-the-gastrointestinal-tract
#20
Cláudio Martins, Cristina Teixeira, Élia Gamito, Ana Paula Oliveira
No abstract text is available yet for this article.
January 2017: Revista Brasileira de Hematologia e Hemoterapia
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