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https://www.readbyqxmd.com/read/29164492/advanced-melanoma-current-treatment-options-biomarkers-and-future-perspectives
#1
REVIEW
Elisa A Rozeman, Tim J A Dekker, John B A G Haanen, Christian U Blank
Malignant melanoma accounts for the highest number of deaths from skin cancer, and the prognosis of patients with stage IV disease has historically been poor. Novel insights into both mutations driving tumorigenesis and immune escape mechanisms of these tumors have led to effective treatment options that have revolutionized the treatment of this disease. Targeting the MAPK kinase pathway (with BRAF and MEK inhibitors), as well as targeting checkpoints, such as cytotoxic T-lymphocyte associated protein 4 (CTLA-4) or programmed death 1 (PD-1), have improved overall survival in patients with late-stage melanoma, and biomarker research for personalized therapy is ongoing for each of these treatment modalities...
November 21, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/29163540/local-high-dose-radiotherapy-induces-systemic-immunomodulating-effects-of-potential-therapeutic-relevance-in-oligometastatic-breast-cancer
#2
Elena Muraro, Carlo Furlan, Michele Avanzo, Debora Martorelli, Elisa Comaro, Aurora Rizzo, Damiana A Fae', Massimiliano Berretta, Loredana Militello, Alessandro Del Conte, Simon Spazzapan, Riccardo Dolcetti, Marco Trovo'
Local irradiation of cancer through radiotherapy can induce spontaneous regression of non-directly irradiated lesions, suggesting the involvement of systemic antitumor immune responses. In oligometastatic breast cancer (BC) patients, the use of stereotactic body radiotherapy (SBRT) favors the local control of treated lesions and may contribute to break local tolerance and release tumor-associated antigens (TAAs), improving host antitumor immunity. We performed a detailed immunomonitoring of BC patients undergoing SBRT to verify its ability to "switch on" the anti-tumor immunity both systemically, in peripheral blood, and locally, employing in vitro BC models...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163490/immune-checkpoint-molecules-on-tumor-infiltrating-lymphocytes-and-their-association-with-tertiary-lymphoid-structures-in-human-breast-cancer
#3
Cinzia Solinas, Soizic Garaud, Pushpamali De Silva, Anaïs Boisson, Gert Van den Eynden, Alexandre de Wind, Paolo Risso, Joel Rodrigues Vitória, François Richard, Edoardo Migliori, Grégory Noël, Hugues Duvillier, Ligia Craciun, Isabelle Veys, Ahmad Awada, Vincent Detours, Denis Larsimont, Martine Piccart-Gebhart, Karen Willard-Gallo
There is an exponentially growing interest in targeting immune checkpoint molecules in breast cancer (BC), particularly in the triple-negative subtype where unmet treatment needs remain. This study was designed to analyze the expression, localization, and prognostic role of PD-1, PD-L1, PD-L2, CTLA-4, LAG3, and TIM3 in primary BC. Gene expression analysis using the METABRIC microarray dataset found that all six immune checkpoint molecules are highly expressed in basal-like and HER2-enriched compared to the other BC molecular subtypes...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29157092/single-agent-and-synergistic-combinatorial-efficacy-of-first-in-class-small-molecule-imipridone-onc201-in-hematological-malignancies
#4
Varun V Prabhu, Mala K Talekar, Amriti R Lulla, C Leah B Kline, Lanlan Zhou, Junior Hall, A Pieter J Van den Heuvel, David T Dicker, Jawad Babar, Stephan A Grupp, Mathew J Garnett, Ultan McDermott, Cyril H Benes, Jeffrey J Pu, David F Claxton, Nadia Khan, Wolfgang Oster, Joshua E Allen, Wafik S El-Deiry
ONC201, founding member of the imipridone class of small molecules, is currently being evaluated in advancer cancer clinical trials. We explored single agent and combinatorial efficacy of ONC201 in preclinical models of hematological malignancies. ONC201 demonstrated (GI50 1-8 µM) dose- and time-dependent efficacy in acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL), chronic myelogenous leukemia (CML), chronic lymphocytic leukemia (CLL), diffuse large B-cell lymphoma (DLBCL), mantle cell lymphoma (MCL), Burkitt's lymphoma, anaplastic large cell lymphoma (ALCL), cutaneous T-cell lymphoma (CTCL), Hodgkin's lymphoma (nodular sclerosis) and multiple myeloma (MM) cell lines including cells resistant to standard of care (dexamethasone in MM) and primary samples...
November 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29155585/allosteric-inhibitors-of-shp2-with-therapeutic-potential-for-cancer-treatment
#5
Jingjing Xie, Xiaojia Si, Shoulai Gu, Mingliang Wang, Jian Shen, Haoyan Li, Jian Shen, Dan Li, Yanjia Fang, Cong Liu, Jidong Zhu
SHP2, a cytoplasmic protein-tyrosine phosphatase encoded by the PTPN11 gene, is involved in multiple cell signaling processes including Ras/MAPK and Hippo/YAP pathways. SHP2 has been shown to contribute to the progression of a number of cancer types including leukemia, gastric and breast cancer. It also regulates T-cell activation by interacting with inhibitory immune checkpoint receptors such as the programmed cell death 1 (PD-1) and B- and T-lymphocyte attenuator (BTLA). Thus, SHP2 inhibitors have drawn great attention by both inhibiting tumor cell proliferation and activating T cell immune responses toward cancer cells...
November 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29155177/co-treatment-with-a-c1b5-peptide-of-protein-kinase-c%C3%AE-and-a-low-dose-of-gemcitabine-strongly-attenuated-pancreatic-cancer-growth-in-mice-through-t-cell-activation
#6
Susumu Ishiguro, Atsushi Kawabata, Alejandro Zulbaran-Rojas, Kelsey Monson, Deepthi Uppalapati, Naomi Ohta, Makoto Inui, Charalampos G Pappas, Andreas G Tzakos, Masaaki Tamura
Although gemcitabine is an effective chemotherapeutic for pancreatic cancer, severe side effects often accompany its use. Since we have discovered that locally administered C1B domain peptides effectively control tumor growth without any side effects, the efficacy of co-treatment with this peptide and a low dose of gemcitabine on the growth of pancreatic cancer was examined. Two- and three-dimensional cell culture studies clarified that a co-treatment with C1B5 peptide and gemcitabine significantly attenuated growth of PAN02 mouse and PANC-1 human pancreatic cancer cells in 2D and 3D cultures...
November 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29154173/prognostic-value-of-tumour-infiltrating-lymphocytes-in-small-her2-positive-breast-cancer
#7
Carmen Criscitiello, Vincenzo Bagnardi, Giancarlo Pruneri, Andrea Vingiani, Angela Esposito, Nicole Rotmensz, Giuseppe Curigliano
BACKGROUND: The standard treatment for patients with small, node-negative, human epidermal growth factor receptor type 2 (HER2)-positive breast cancer (BC) is still controversial. Our aim was to assess the prognostic role of tumour-infiltrating lymphocytes (TILs) in patients with stage pT1a-b HER2-positive BC. PATIENTS AND METHODS: Haematoxylin and eosin slides from node-negative, pT1a-b HER2-positive BC surgical specimens were retrieved from pathology archives to assess TILs and their association with outcome...
November 15, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29149251/parental-age-and-risk-of-lymphoid-neoplasms
#8
Gunnar Larfors, Ingrid Glimelius, Sandra Eloranta, Karin E Smedby
High parental age at childbirth has repeatedly been linked to childhood malignancies, while few studies have focused on the offspring's risk of adult cancer. In this population-based case-control study, we identified 32,000 patients with lymphoid neoplasms, diagnosed at ages 0-79 years during the period 1987-2011, and 160,000 matched controls in Sweden. Using prospectively registered data on their first-degree relatives, we evaluated the impact of parental age on the risk of lymphoid neoplasms by subtype. Overall, each 5-year increment in maternal age was associated with a 3% increase in incidence of offspring lymphoid neoplasms (hazard ratio = 1...
November 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29146881/beta-adrenergic-signaling-impairs-anti-tumor-cd8-t-cell-responses-to-b-cell-lymphoma-immunotherapy
#9
Michael D Nissen, Erica K Sloan, Stephen R Mattarollo
Beta-adrenergic receptor (betaAR) signaling regulates many physiological processes, including immune system responses. There is growing evidence also for betaAR-induced modulation of cancer growth and metastasis. In the Eu-myc mouse model of B-cell lymphoma, we investigated the effects of chronically elevated betaAR signaling on lymphoma progression and anti-tumor immunity, as well as the impact on cancer immunotherapy. Chronic treatment with the non-selective beta-agonist isoprenaline promoted lymphoma development in a manner dependent on signaling within the hematopoietic compartment...
November 16, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/29142864/count-of-platelet-and-mean-platelet-volume-score-serologic-prognostic-factor-in-patients-with-oral-squamous-cell-carcinoma
#10
Jae Woo Park, Chul-Hwan Kim, Yong Chan Ha, Moon Young Kim, Sung Min Park
Objectives: TNM staging, especially for lymph node metastasis, is the scoring system most widely used among prognostic factors for cancer survival. Several biomarkers have been studied as serologic markers, but their specificity is low and clinical applications are difficult. This study aimed to establish a scoring system for patients with oral squamous cell carcinoma (OSCC) using platelet (PLT) and mean platelet volume (MPV) levels measured postoperatively and to evaluate their significance as prognostic factors...
October 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29142420/exploring-the-cytotoxic-potential-of-triterpenoids-enriched-fraction-of-bacopa-monnieri-by-implementing-in-vitro-in-vivo-and-in-silico-approaches
#11
Md Nasar Mallick, Washim Khan, Rabea Parveen, Sayeed Ahmad, Sadaf, Mohammad Zeeshan Najm, Istaq Ahmad, Syed Akhtar Husain
Background: Bacopa monnieri (BM) is a herbaceous plant traditionally used from time immemorial in Ayurvedic and folklore medicines. We hypothesized that the extract of the whole plant might contain numerous molecules with having antitumor activities that could be very effective in killing of human cancer cells. Objectives: This work investigated anticancer activity of bioactive fraction of BM. Materials and Methods: The hydroalcoholic extract of BM was fractionated with different solvent, namely, hexane, dichloromethane (DCM), acetone, methanol, and water...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29139554/immune-checkpoint-inhibitors-new-strategies-to-checkmate-cancer
#12
REVIEW
Ruairi A M Wilson, T R Jeffry Evans, Alasdair R Fraser, Robert J B Nibbs
Immune checkpoint inhibitors (ICIs) targeting Cytotoxic T-Lymphocyte-Associated protein 4 (CTLA-4) or Programmed cell Death protein 1 (PD-1) receptors have demonstrated remarkable efficacy in subsets of patients with malignant disease. This emerging treatment modality holds great promise for future cancer treatment and has engaged pharmaceutical research interests in tumour immunology. While ICIs can induce rapid and durable responses in some patients, identifying predictive factors for effective clinical responses has proven challenging...
November 15, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29137242/immune-profiling-of-nf1-associated-tumors-reveals-histologic-subtype-distinctions-and-heterogeneity-implications-for-immunotherapy
#13
Kellie B Haworth, Michael A Arnold, Christopher R Pierson, Kwangmin Choi, Nicholas D Yeager, Nancy Ratner, Ryan D Roberts, Jonathan L Finlay, Timothy P Cripe
Successful treatment of neurofibromatosis type 1 (NF1)-associated tumors poses a significant clinical challenge. While the primary underlying genetic defect driving RAS signaling is well described, recent evidence suggests immune dysfunction contributes to tumor pathogenesis and malignant transformation. As immunologic characterizations, prognostic and predictive of immunotherapeutic clinical response in other cancers, are not fully described for benign and malignant NF1-related tumors, we sought to define their immunologic profiles...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29133623/immu-140-a-novel-sn-38-antibody-drug-conjugate-targeting-hla-dr-mediates-dual-cytotoxic-effects-in-hematological-cancers-and-malignant-melanoma
#14
Thomas M Cardillo, Serengulam V Govindan, Maria B Zalath, Diane L Rossi, Yang Wang, Chien-Hsing Chang, David M Goldenberg
HLA-DR is a member of the MHC class II antigen family expressed on hematological and solid tumors.  Antibodies directed against HLA-DR have demonstrated some clinical success, but toxicities limited development.  IMMU-140 is an anti-HLA-DR antibody-drug conjugate comprised of the active metabolite of irinotecan, SN-38, conjugated to a humanized anti-HLA-DR IgG4 antibody (IMMU-114); the IgG4 naked antibody is devoid of immune functions. Our aim was to determine if SN-38, the metabolite of a drug not commonly used in hematopoietic cancers, would be effective and safe when targeted to HLA-DR-expressing tumors...
November 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29118007/pd-1-expression-and-clinical-pd-1-blockade-in-b-cell-lymphomas
#15
Zijun Y Xu-Monette, Jianfeng Zhou, Ken H Young
PD-1 blockade targeting the PD-1 immune checkpoint has demonstrated unprecedented clinical efficacy in the treatment of advanced cancers including hematologic malignancies. This article reviews the landscape of PD-1/PD-L1 expression and current PD-1 blockade immunotherapy trials in B-cell lymphomas. Most notably, in relapsed/refractory classical Hodgkin lymphoma, which frequently has increased PD-1(+) tumor-infiltrating T cells, 9p24 genetic alteration and high PD-L1 expression, anti-PD-1 monotherapy has demonstrated remarkable objective response rates (ORR) of 65-87% and durable disease control in phase I/II clinical trials...
November 8, 2017: Blood
https://www.readbyqxmd.com/read/29117898/the-contribution-of-immune-infiltrates-and-the-local-microenvironment-in-the-pathogenesis-of-osteosarcoma
#16
Marie-Françoise Heymann, Frédéric Lézot, Dominique Heymann
Osteosarcoma is a rare primary bone cancer characterized by cancer cells producing calcified osteoid extracellular matrix and inducing lung metastases with a high frequency. The local microenvironment defined several tumor niches controlling the tumor growth and cell extravasation. The immune infiltrate composes one of these niches. The immune environment of osteosarcoma is mainly composed by T-lymphocytes and macrophages but also contains other subpopulations including B-lymphocytes and mast cells. Osteosarcoma cells control the recruitment and differentiation of immune infiltrating cells and establish a local immune tolerant environment favorable to the tumor growth, drug resistance and the occurrence of metastases...
November 2, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29116739/gold-nanocluster-mediated-cellular-death-under-electromagnetic-radiation
#17
Anna Cifuentes-Rius, Angela Ivask, Shreya Das, Nuria Penya Auladell, Laura Fabregas, Nicholas L Fletcher, Zachary H Houston, Kristofer James Thurecht, Nicolas H Voelcker
Gold nanoclusters (Au NCs) have become a promising nanomaterial for cancer therapy due to their biocompatibility and fluorescent properties. In this study, the effect of ultrasmall protein-stabilized 2 nm Au NCs on six types of mammalian cells (fibroblasts, B-lymphocytes, glioblastoma, neuroblastoma, and two types of prostate cancer cells) under electromagnetic radiation is investigated. Cellular association of Au NCs in vitro is concentration-dependent and Au NCs have low intrinsic toxicity. However, when Au NC-incubated cells are exposed to 1 GHz electromagnetic field (microwave radiation, µW), cell viability significantly decreases thus demonstrating that Au NCs exhibit specific µW dependent cytotoxicity, likely resulting from localized heating...
November 8, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29116520/next-generation-dna-sequencing-of-vh-vl-repertoires-a-primer-and-guide-to-applications-in-single-domain-antibody-discovery
#18
Kevin A Henry
Immunogenetic analyses of expressed antibody repertoires are becoming increasingly common experimental investigations and are critical to furthering our understanding of autoimmunity, infectious disease, and cancer. Next-generation DNA sequencing (NGS) technologies have now made it possible to interrogate antibody repertoires to unprecedented depths, typically by sequencing of cDNAs encoding immunoglobulin variable domains. In this chapter, we describe simple, fast, and reliable methods for producing and sequencing multiplex PCR amplicons derived from the variable regions (VH, VHH or VL) of rearranged immunoglobulin heavy and light chain genes using the Illumina MiSeq platform...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29112013/cancer-therapy-associated-lymphoproliferative-disorders-an-under-recognized-type-of-immunodeficiency-associated-lymphoproliferative-disorder
#19
Sergio Pina-Oviedo, Roberto N Miranda, L Jeffrey Medeiros
We describe the clinicopathologic features of 17 patients who had a hematologic malignancy of various types, were treated, and subsequently developed a lymphoproliferative disorder (LPD). There were 10 men and 7 women with a median age of 59 years (range, 36 to 83 y). The primary hematologic neoplasms included: 5 chronic lymphocytic leukemia/small lymphocytic lymphoma, 3 plasma cell myeloma, 2 acute monoblastic leukemia, and 1 case each of mixed-phenotype acute leukemia, chronic myeloid leukemia, splenic marginal zone lymphoma, follicular lymphoma, mantle cell lymphoma, T-cell prolymphocytic leukemia, and peripheral T-cell lymphoma...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29105104/b-lymphocytes-limit-senescence-driven-fibrosis-resolution-and-favor-hepatocarcinogenesis-in-mouse-liver-injury
#20
Francesca Faggioli, Eleonora Palagano, Luca Di Tommaso, Matteo Donadon, Veronica Marrella, Camilla Recordati, Stefano Mantero, Anna Villa, Paolo Vezzoni, Barbara Cassani
Hepatocellular carcinoma (HCC) is a frequent neoplasia and a leading cause of inflammation-related cancer mortality. Despite most HCC arise from persistent inflammatory conditions; pathways linking chronic inflammation to cancer development are still incompletely elucidated. We dissected the role of adaptive immunity in the Mdr2-/- mouse, a model of inflammation-associated cancer, in which ablation of adaptive immunity has been induced genetically (Rag2-/-Mdr2-/- and μMt-Mdr2-/- mice) or with in vivo treatments using lymphocyte-specific depleting antibodies (anti-CD20 or anti-CD4/CD8)...
November 3, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
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