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https://www.readbyqxmd.com/read/28318345/novel-agents-in-classical-hodgkin-lymphoma
#1
Sven Borchmann, Bastian von Tresckow
Classical Hodgkin lymphoma (cHL) is the most common hematological malignancy in young adults and can be cured in most cases. However, relapsed and refractory Hodgkin lymphoma, certain patient groups, such as elderly patients, and toxicity of first-line treatment still pose significant challenges. Consequently, new treatment options are needed. Recently, many new treatment concepts have been evaluated in clinical trials. Targeted drug-antibody conjugates and immune checkpoint inhibitors have decisively changed treatment approaches...
March 20, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28303495/genetic-landscape-and-classification-of-peripheral-t-cell-lymphomas
#2
REVIEW
Rosalind F Sandell, Rebecca L Boddicker, Andrew L Feldman
PURPOSE OF REVIEW: Peripheral T cell lymphomas (PTCLs) are markedly heterogeneous at the clinical, pathological, and molecular levels. This review will discuss genetic findings in PTCL with special emphasis on how they impact lymphoma classification. RECENT FINDINGS: Sequencing studies have identified recurrent genetic alterations in nearly every PTCL subtype. In anaplastic large cell lymphoma, these studies have revealed novel chromosomal rearrangements and mutations that have prognostic significance and may suggest new therapeutic approaches...
April 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28298901/unveiling-another-missing-piece-in-ebv-driven-lymphomagenesis-ebv-encoded-micrornas-expression-in-eber-negative-burkitt-lymphoma-cases
#3
Lucia Mundo, Maria R Ambrosio, Matteo Picciolini, Giuseppe Lo Bello, Sara Gazaneo, Leonardo Del Porro, Stefano Lazzi, Mohsen Navari, Noel Onyango, Massimo Granai, Cristiana Bellan, Giulia De Falco, Davide Gibellini, Pier P Piccaluga, Lorenzo Leoncini
Epstein-Barr virus (EBV) is a gammaherpesvirus linked to a number of lymphoid and epithelial malignancies, including Burkitt lymphoma (BL) in which its frequency ranges from 30% in sporadic cases to 100% in the endemic ones. The possible contribution of EBV to BL pathogenesis is largely unknown. It has been suggested that EBV may be associated with all of the cases, including those diagnosed as EBV negative by a mechanism of hit-and-run. Early during oncogenesis, viral genes are essential for initiating disease...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28293795/a-workflow-for-in-silico-design-of-hil-10-and-ebvil-10-inhibitors-using-well-known-miniprotein-scaffolds
#4
Salvador Dueñas, Sergio A Aguila, Genaro Pimienta
The over-expression of immune-suppressors such as IL-10 is a crucial landmark in both tumor progression, and latent viral and parasite infection. IL-10 is a multifunctional protein. Besides its immune-cell suppressive function, it also promotes B-cell tumorigenesis of lymphomas and melanoma. Human pathogens like unicellular parasites and viruses that remain latent inside B cells promote the over-expression of hIL-10 upon infection, which inhibits cell-mediated immune surveillance, and at the same time mediates B cell proliferation...
April 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28288719/marginal-zone-lymphoma-associated-autoimmunity-and-auto-immune-disorders
#5
REVIEW
Larissa Sena Teixeira Mendes, Andrew Wotherspoon
Large epidemiological studies have shown a consistent increased risk for developing lymphoma in the setting of autoimmune disorders (AID). It is known that this link appears to be stronger for some AID and certain non-Hodgkin lymphoma subtypes e.g. Sjögren's syndrome and extra-nodal marginal zone lymphoma of the salivary gland, and thyroid MALT lymphoma in a background of Hashimoto's thyroiditis. B and T-cell hyperactivity due to chronic antigenic stimulation and the consequent presence of acquired lymphoid tissue seems to play a key role in the pathogenesis of AI-related lymphomas...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28288706/ocular-adnexal-marginal-zone-lymphoma-clinical-presentation-pathogenesis-diagnosis-prognosis-and-treatment
#6
REVIEW
Marianna Sassone, Maurilio Ponzoni, Andrés J M Ferreri
Ocular adnexal marginal zone lymphoma (OAML) represents 1-2% of all non Hodgkin lymphomas. In the last few years many advances in understanding the pathogenesis and the molecular basis involved in its development have been done. Many potential risk factors have been proposed; a dysregulation of immune response in association with a chronic antigenic stimulation, have been hypothesized as possible pathogenic mechanism. In particular, Chlamydia psittaci infection has been related to OAML arising, and eradicating antibiotic therapy has been addressed as a safe and cost-effective approach...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28287948/spectrum-of-ct-findings-in-thoracic-extranodal-non-hodgkin-lymphoma
#7
Mathew P Bligh, Joy N Borgaonkar, Steven C Burrell, David A MacDonald, Daria Manos
Non-Hodgkin lymphoma (NHL) frequently manifests in extranodal structures in the chest, often in the form of secondary involvement but occasionally as primary disease. Because staging and treatment are affected by the presence of extranodal disease at imaging, radiologists' interpretation and management of suspicious findings are critical to patient care. Unfortunately, owing to considerable imaging overlap with other diseases, primary extranodal lymphoma is difficult to diagnose with imaging alone. Radiologists should have a heightened degree of suspicion in patients at risk (including patients with immune compromise, autoimmune diseases, or a history of stem cell or solid organ transplant) or with particular imaging appearances (including the vertebral wraparound sign, nonresolving consolidation, an infiltrative soft-tissue mass, and lesions demonstrating vascular encasement without invasion)...
March 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28283566/human-plasmacytoid-dendritic-cells-display-and-shed-b-cell-maturation-antigen-upon-tlr-engagement
#8
Elisabeth Schuh, Andrea Musumeci, Franziska S Thaler, Sarah Laurent, Joachim W Ellwart, Reinhard Hohlfeld, Anne Krug, Edgar Meinl
The BAFF-APRIL system is best known for its control of B cell homeostasis, and it is a target of therapeutic intervention in autoimmune diseases and lymphoma. By analyzing the expression of the three receptors of this system, B cell maturation Ag (BCMA), transmembrane activator and CAML interactor, and BAFF receptor, in sorted human immune cell subsets, we found that BCMA was transcribed in plasmacytoid dendritic cells (pDCs) in both blood and lymphoid tissue. Circulating human pDCs contained BCMA protein without displaying it on the cell surface...
March 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28281555/nf-%C3%AE%C2%BAb-p50-activation-associated-with-immune-dysregulation-confers-poorer-survival-for-diffuse-large-b-cell-lymphoma-patients-with-wild-type-p53
#9
Qingqing Cai, Meifeng Tu, Zijun Y Xu-Monette, Ruifang Sun, Ganiraju C Manyam, Xiaolu Xu, Alexander Tzankov, Eric D Hsi, Michael B Møller, L Jeffrey Medeiros, Chi Young Ok, Ken H Young
Dysregulated NF-κB signaling is critical for lymphomagenesis, however, the expression and clinical relevance of NF-κB subunit p50 in diffuse large B-cell lymphoma have not been evaluated. In this study, we analyzed the prognostic significance and gene expression signatures of p50 nuclear expression as a surrogate for p50 activation in 465 patients with de novo diffuse large B-cell lymphoma. We found that p50(+) nuclear expression, observed in 34.6% of diffuse large B-cell lymphoma, predominantly composed of activated B-cell-like subtype, was an independent adverse prognostic factor in patients with activated B-cell-like diffuse large B-cell lymphoma...
March 10, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28275140/antibody-independent-function-of-human-b-cells-contributes-to-antifungal-t-cell-responses
#10
Rui Li, Ayman Rezk, Hulun Li, Jennifer L Gommerman, Alexandre Prat, Amit Bar-Or
Fungal infections (e.g., Candida albicans) can manifest as serious medical illnesses, especially in the elderly and immune-compromised hosts. T cells are important for Candida control. Whether and how B cells are involved in antifungal immunity has been less clear. Although patients with agammaglobulinemia exhibit normal antifungal immunity, increased fungal infections are reported following B cell-depleting therapy, together pointing to Ab-independent roles of B cells in controlling such infections. To test how human B cells may contribute to fungal-associated human T cell responses, we developed a novel Ag-specific human T cell/B cell in vitro coculture system and found that human B cells could induce C...
March 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28273193/-drug-therapy-of-lymphomas
#11
Lajos Gergely
The therapy of lymphomas has undergone a major expansion during the last decade. Novel therapeutic targets have appeared beyond classical chemotherapeutic combinations. These novel drugs have very pronounced action across lymphoma types, and their toxicity profile is usually better tolerable compared to standard chemotherapies. These new therapies are enabling us to offer treatment to those patients who have refractory disease, and we had no option to treat them before these drugs. The author describes several new therapeutic options...
March 8, 2017: Magyar Onkologia
https://www.readbyqxmd.com/read/28273192/-primary-central-nervous-system-lymphoma-pathogenesis-and-histomorphology
#12
Gábor Méhes
Lymphoproliferative diseases of the central nervous system are rare, diagnostics and treatment are accordingly challenging. Since the introduction of the 2008 WHO lymphoma classification, primary CNS DLBCL - also covering the associated primary ocular (vitreoretinal) lymphoma - is a separate entity. The special localization is related with a series of newly recognized genetic, genomic and immunologic features directing to the strong interaction between transformed lymphoma cells, neural tissue components and the local immune response...
March 8, 2017: Magyar Onkologia
https://www.readbyqxmd.com/read/28272989/phase-i-clinical-trial-of-idiotypic-dna-vaccine-administered-as-a-complex-with-polyethylenimine-to-patients-with-b-cell-lymphoma
#13
A N Meleshko, N A Petrovskaya, N Savelyeva, K P Vashkevich, S N Doronina, N V Sachivko
We report on the design of a phase I, non-randomized, open-label study of idiotypic DNA vaccination in patients with B-cell non-Hodgkin's lymphoma (ISRCTN31090206). The study uses DNA fusion gene vaccination encoding patient-specific single chain variable fragment, or idiotype, linked to an immunostimulatory sequence. Two types of immunostimulatory sequence are being explored: potato virus X coat protein and human chemokine MIP3α. Linear polyethylenimine with low molecular weight (8 kDa) is used as a synthetic vehicle for vaccine delivery...
March 8, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28272671/hodgkin-lymphoma-in-a-case-of-chronic-myeloid-leukemia-treated-with-tyrosine-kinase-inhibitors
#14
Smeeta Gajendra, Archana Sharma, Rashi Sharma, Sunil Kumar Gupta, Nitin Sood, Ritesh Sachdev
Chronic myeloid leukemia (CML) is characterized by increased and unregulated proliferation of granulocytic lineage in the bone marrow and presence of these immature myeloid cells in the peripheral blood with presence of Philadelphia (Ph) chromosome. Tyrosine kinase inhibitors are the most important drugs in the CML therapy and provide long disease-free survival. Due to the increased survival of CML patients with continual administration of these drugs, the chance of development of secondary malignancies may increase...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28265553/overview-of-the-use-of-murine-models-in-leukemia-and-lymphoma-research
#15
REVIEW
Rebecca Kohnken, Pierluigi Porcu, Anjali Mishra
Murine models have been adopted as a significant and powerful tool in the study of cancer. The applications of murine models of cancer are numerous: mechanism discovery, oncogenesis, molecular genetics, microenvironment, metastasis, and therapeutic efficacy. Leukemias and lymphomas are a group of highly heterogeneous hematologic malignancies that affect people of all ages and ethnicities. Leukemia and lymphoma arise from hematopoietic and immune cells and usually spread widely throughout the body. The liquid nature of many of these malignancies, as well as the complex microenvironment from which they arise and their multifaceted genetic basis, has added to the difficulty in generating appropriate and translational models to study them...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28262249/immunotoxic-effects-of-single-and-combined-pharmaceuticals-exposure-on-a-harbor-seal-phoca-vitulina-b-lymphoma-cell-line
#16
Christine Kleinert, Emilie Lacaze, Méryl Mounier, Sylvain De Guise, Michel Fournier
The potential risk of pharmaceuticals in the environment to top-predators is still largely unknown. In this study, we assessed the immunotoxic effects of ten pharmaceuticals individually and as mixtures on a harbor seal (Phoca vitulina) B lymphoma cell line. A significant reduction in lymphocyte transformation was observed following an exposure to 12,500μg/L 17α-ethinyl estradiol and 25,000μg/L naproxen. Exposure to 12,500μg/L 17α-ethinyl estradiol decreased the percentage of cell in the G0/G1 phase of the cell cycle while increasing the percentage of cells in the S phase...
March 2, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28259992/ebv%C3%A2-bart%C3%A2-6%C3%A2-3p-and-cellular-microrna%C3%A2-197-compromise-the-immune-defense-of-host-cells-in-ebv%C3%A2-positive-burkitt-lymphoma
#17
Yang-Min Zhang, Yan Yu, He-Ping Zhao
The present study aimed to identify the association between Epstein‑Barr virus (EBV) microRNA (miRNA) and cellular miRNA in compromising the immune system, which contributes to the development of Burkitt lymphoma (BL). The present study selected cellular miR‑197 as the focus of the experiments due to the previous report that it is differentially expressed and the observation that interleukin‑6 receptor (IL‑6R) is a virtual target of miR‑197 and EBV‑BamHI A region rightward transcript (BART)‑6‑3p...
February 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28257957/the-cancer-immunity-cycle-as-rational-design-for-synthetic-cancer-drugs-novel-dc-vaccines-and-car-t-cells
#18
REVIEW
Mohanraj Ramachandran, Anna Dimberg, Magnus Essand
Cell therapy is an advanced form of cancer immunotherapy that has had remarkable clinical progress in the past decade in the search for cure of cancer. Most success has been achieved for chimeric antigen receptor (CAR) T-cells where CAR T-cells targeting CD19 show very high complete response rates for patients with refractory acute B-cell acute lymphoblastic leukemia (ALL) and are close to approval for this indication. CD19 CAR T-cells are also effective against B-cell chronic lymphoblastic leukemia (CLL) and B-cell lymphomas...
February 28, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28256805/targeted-label-free-quantification-of-interleukin-8-in-pma-activated-u937-cell-secretome-by-nanolc-esi-ms-ms-ssrm
#19
Pelin Esma Emirbayer, Kerstin F Gerer, Stefanie Hoyer, Monika Pischetsrieder
Monocytes are a part of the innate immune system. Their differentiation into macrophages changes their cellular proteome and secretome. Particularly secretome components such as cytokines are crucial for immune response and inflammation in many diseases. Differentiation of human lymphoma cell line U937 can be triggered by phorbol 12-myristate 13-acetate (PMA). Screening of the cytokine release in U937 upon PMA stimulation by cytometric bead array almost exclusively showed interleukin-8. Next, a label-free nanoLC-ESI-MS/MS-sSRM method for quantification of interleukin-8 in the cell secretome was established and applied to monitor the time kinetics of PMA treatment in different concentrations...
March 3, 2017: Proteomics
https://www.readbyqxmd.com/read/28253538/the-identification-of-upregulated-ebv-mir-bhrf1-2-5p-targeting-malt1-and-ebv-mir-bhrf1-3-in-the-circulation-of-patients-with-multiple-sclerosis
#20
Yifei Wang, Dandan He, Hongwei Liang, Dan Yang, Hui Yue, Xuemei Zhang, Rui Wang, Bing Li, Hongxia Yang, Yuan Liu, Yao Chen, Yuxiao Duan, ChenYu Zhang, Xi Chen, Jin Fu
Epstein-Barr virus (EBV) is a well-documented etiologic factor for multiple sclerosis (MS). EBV encodes at least 44 microRNAs (miRNAs) that are readily detectable in the circulation of human. Previous studies have demonstrated that EBV-encoded miRNAs regulate host immune response and may serve as biomarkers for EBV-associated diseases. However, the roles of EBV miRNAs in MS are still unkown. To fill the gap, we conducted a comprehensive profiling of 44 mature EBV miRNAs in 30 relapse-remitting MS (RRMS) patients at relapse and 30 matched healthy controls...
March 2, 2017: Clinical and Experimental Immunology
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