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https://www.readbyqxmd.com/read/29156736/effects-of-sodium-fluoride-on-blood-cellular-and-humoral-immunity-in-mice
#1
Hongrui Guo, Ping Kuang, Qin Luo, Hengmin Cui, Huidan Deng, Huan Liu, Yujiao Lu, Jing Fang, Zhicai Zuo, Junliang Deng, Yinglun Li, Xun Wang, Ling Zhao
Exposure to high fluorine can cause toxicity in human and animals. Currently, there are no systematic studies on effects of high fluorine on blood cellular immunity and humoral immunity in mice. We evaluated the alterations of blood cellular immunity and humoral immunity in mice by using flow cytometry and ELISA. In the cellular immunity, we found that sodium fluoride (NaF) in excess of 12 mg/Kg resulted in a significant decrease in the percentages of CD3(+), CD3(+)CD4(+), CD3(+)CD8(+) T lymphocytes in the peripheral blood...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29155585/allosteric-inhibitors-of-shp2-with-therapeutic-potential-for-cancer-treatment
#2
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
#3
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/29154862/c21-steroidal-glycosides-and-sesquiterpenes-from-the-roots-of-cynanchum-bungei-and-their-inhibitory-activities-against-the-proliferation-of-b-and-t-lymphocytes
#4
Jun-Jun Qin, Xi Chen, Ze-Min Lin, Yan-Sheng Xu, Yi-Ming Li, Jian-Ping Zuo, Wei-Min Zhao
Phytochemical investigation of the roots of Cynanchum bungei Decne (Asclepiadaceae) led to the elucidation of seven C21-steroidal glycosides (1-7) including three new compounds (1-3), named cynabungosides A-C, one new eudesmane-type sesquiterpene (8), named cynabungone, and one new humulane-type sesquiterpene (9), named cynabungolide. Their structures were elucidated on the basis of extensive spectroscopic analysis. The absolute configurations of 8 and 9 were defined unequivocally by ECD analysis and X-ray crystallography, respectively...
November 14, 2017: Fitoterapia
https://www.readbyqxmd.com/read/29154173/prognostic-value-of-tumour-infiltrating-lymphocytes-in-small-her2-positive-breast-cancer
#5
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/29152463/acute-oral-toxicity-evaluation-of-aqueous-ethanolic-extract-of-saccharum-munja-roxb-roots-in-albino-mice-as-per-oecd-425-tg
#6
Uzma Saleem, Sadia Amin, Bashir Ahmad, Haroon Azeem, Fareeha Anwar, Sunita Mary
Background: S. munja roots have been used in ethno medicines for the treatment of different ailments. Despite its beneficial uses no studies on its toxicity potential have been reported. Objective: The study was designed to evaluate acute toxic potential of aqueous ethanolic extract of S. munja roots according to OECD TG No. 425. Material and methods: Female mice were divided into two groups (n = 5). One group served as control while the other as treated group that received 2000 mg/kg b...
2017: Toxicology Reports
https://www.readbyqxmd.com/read/29152232/recent-therapeutic-advances-in-chronic-lymphocytic-leukemia
#7
REVIEW
Prithviraj Bose, Varsha Gandhi
The last several years have witnessed a paradigm shift in the management of patients with chronic lymphocytic leukemia (CLL). The course of this very heterogeneous disease, traditionally treated with chemotherapeutic agents usually in combination with rituximab, typically has been characterized by remissions and relapses, and survival times vary greatly, depending on intrinsic biological attributes of the leukemia. The developments of the last few years have been transformative, ushering in an era of novel, molecularly targeted therapies, made possible by extensive efforts to elucidate the biology of the disease that predated the new targeted drugs...
2017: F1000Research
https://www.readbyqxmd.com/read/29152058/effective-control-of-acute-myeloid-leukaemia-and-acute-lymphoblastic-leukaemia-progression-by-telomerase-specific-adoptive-t-cell-therapy
#8
Sara Sandri, Francesco De Sanctis, Alessia Lamolinara, Federico Boschi, Ornella Poffe, Rosalinda Trovato, Alessandra Fiore, Sara Sartori, Andrea Sbarbati, Attilio Bondanza, Simone Cesaro, Mauro Krampera, Maria T Scupoli, Michael I Nishimura, Manuela Iezzi, Silvia Sartoris, Vincenzo Bronte, Stefano Ugel
Telomerase (TERT) is a ribonucleoprotein enzyme that preserves the molecular organization at the ends of eukaryotic chromosomes. Since TERT deregulation is a common step in leukaemia, treatments targeting telomerase might be useful for the therapy of hematologic malignancies. Despite a large spectrum of potential drugs, their bench-to-bedside translation is quite limited, with only a therapeutic vaccine in the clinic and a telomerase inhibitor at late stage of preclinical validation. We recently demonstrated that the adoptive transfer of T cell transduced with an HLA-A2-restricted T-cell receptor (TCR), which recognize human TERT with high avidity, controls human B-cell chronic lymphocytic leukaemia (B-CLL) progression without severe side-effects in humanized mice...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29151145/pendimethalin-induces-oxidative-stress-dna-damage-and-mitochondrial-dysfunction-to-trigger-apoptosis-in-human-lymphocytes-and-rat-bone-marrow-cells
#9
Sabiha M Ansari, Quaiser Saquib, Sabry M Attia, Eslam M Abdel-Salam, Hend A Alwathnani, Mohammad Faisal, Abdulrahman A Alatar, Abdulaziz A Al-Khedhairy, Javed Musarrat
Pendimethalin (PM) is a dinitroaniline herbicide extensively applied against the annual grasses and broad-leaved weeds. There is no report available on PM-induced low-dose genotoxicity in human primary cells and in vivo test models. Such data gap has prompted us to evaluate the genotoxic potential of PM in human lymphocytes and rats. PM selectively binds in the minor groove of DNA by forming covalent bonds with G and C nitrogenous bases, as well as with the ribose sugar. PM induces micronucleus formation (MN) in human lymphocytes, indicating its clastogenic potential...
November 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/29151040/meningoencephalitis-in-a-royal-marine-after-skinning-reindeer-in-norway
#10
Christopher A Pollard, D S Burns, B Ho, A McD Johnston
Meningoencephalitis presenting in service personnel overseas may present a diagnostic challenge due to the broad range of potential differential diagnosis as well as the requirement for rapid assessment and treatment. A 25-year-old Royal Marine was evacuated to the Royal Centre for Defence Medicine in Birmingham, UK, with a history of rash consistent with erythema chronicum migrans, a seizure, and lymphocytic pleocytosis after skinning reindeer in Norway. Neuroborreliosis was suspected and empirical antibiotics were administered...
November 18, 2017: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29150880/a-slowly-developed-severe-cutaneous-adverse-reaction-to-idelalisib
#11
L Huilaja, O Lindgren, M Soronen, T Siitonen, K Tasanen
Intracellular signal mediator phosphatidylinositol-3-kinase (PIK3K) -δ, an isoform of PIK3K, is expressed in hematopoietic cells especially in lymphoid lineage 1. Idelalisib is a novel PIK3K-δ targeted kinase inhibitor which is approved for relapsed follicular B-cell non-Hodgkin lymphoma as a monotherapy and in combination with rituximab, an anti-CD20 antibody, for relapsed chronic lymphocytic leukemia (CLL) 2. Only one case describing the clinical features of severe cutaneous adverse reaction (SCAR) of idelalisib in detail has been previously published 3...
November 17, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29150462/comprehensive-analysis-of-vitreous-specimens-for-uveitis-classification-a-prospective-multicentre-observational-study
#12
Kazuichi Maruyama, Tohru Inaba, Sunao Sugita, Ryo Ichinohasama, Kenji Nagata, Shigeru Kinoshita, Manabu Mochizuki, Toru Nakazawa
PURPOSE: To determine the clinical relevance of vitreous biomarkers in patients with uveitis. DESIGN: Multicentre, prospective, observational study. SETTING: Uveitis outpatient clinics of two academic medical centres in Japan. PATIENT POPULATION: This study included 234 eyes of 191 patients with various uveitis aetiologies: definitive sarcoidosis (61 eyes of 46 patients), suspected sarcoidosis (60 eyes of 45 patients), intraocular tumour (34 eyes of 27 patients), viral infection (20 eyes of 18 patients), non-sarcoidosis (16 eyes of 16 patients) and unknown aetiology (43 eyes of 39 patients)...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29150438/a-pip2-derived-amplification-loop-fuels-the-sustained-initiation-of-b-cell-activation
#13
Chenguang Xu, Hengyi Xie, Xingdong Guo, Haipeng Gong, Lei Liu, Hai Qi, Chenqi Xu, Wanli Liu
Lymphocytes have evolved sophisticated signaling amplification mechanisms to efficiently activate downstream signaling after detection of rare ligands in their microenvironment. B cell receptor microscopic clusters (BCR microclusters) are assembled on the plasma membrane and recruit signaling molecules for the initiation of lymphocyte signaling after antigen binding. We identified a signaling amplification loop derived from phosphatidylinositol 4,5-biphosphate (PIP2) for the sustained B cell activation. Upon antigen recognition, PIP2 was depleted by phospholipase C-γ2 (PLC-γ2) within the BCR microclusters and was regenerated by phosphatidic acid-dependent type I phosphatidylinositol 4-phosphate 5-kinase outside the BCR microclusters...
November 17, 2017: Science Immunology
https://www.readbyqxmd.com/read/29150112/passenger-lymphocyte-syndrome-in-liver-transplantation
#14
Denise M Brunetta, Lilian M de Albuquerque, Andressa H de Morais Batista, Lhais Helenne O Santos, Dirk Schreen, Clébia A de Lima, Denissa F G Mesquita, Luciana Maria de B Carlos, José Huygens P Garcia
No abstract text is available yet for this article.
October 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/29149984/corneal-xenotransplantation-from-pig-to-rhesus-monkey-no-signs-of-transmission-of-endogenous-porcine-retroviruses
#15
A Li, Y Zhang, Y Liu, Z Pan
BACKGROUND: Xenotransplantations of pig corneas have become an attractive alternative to human corneas. Such xenotransplantations carry the danger, however, of transmission of porcine endogenous retroviruses (PERVs). Here, we investigated whether porcine corneas harbor viral DNA and RNA and whether transplantation to a nonhuman primate would lead to host PERV infection. METHODS: Monkey vein endothelial cells (MVECs) were inoculated with porcine aortic endothelial cell (PAEC) supernatants, and DNA and total RNA of MVECs were tested for PERV by polymerase chain reaction (PCR) and reverse transcription PCR (RT-PCR) assays...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149251/parental-age-and-risk-of-lymphoid-neoplasms
#16
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/29147628/trial-watch-adoptively-transferred-cells-for-anticancer-immunotherapy
#17
REVIEW
Carole Fournier, François Martin, Laurence Zitvogel, Guido Kroemer, Lorenzo Galluzzi, Lionel Apetoh
Immunotherapies aimed at strengthening immune effector responses against malignant cells are growing at exponential rates. Alongside, the impressive benefits obtained by patients with advanced melanoma who received adoptively transferred tumor-infiltrating lymphocytes (TILs) have encouraged the scientific community to pursue adoptive cell transfer (ACT)-based immunotherapy. ACT involves autologous or allogenic effector lymphocytes that are generally obtained from the peripheral blood or resected tumors, expanded and activated ex vivo, and administered to lymphodepleted patients...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147614/exploiting-a-new-strategy-to-induce-immunogenic-cell-death-to-improve-dendritic-cell-based-vaccines-for-lymphoma-immunotherapy
#18
B Montico, C Lapenta, M Ravo, D Martorelli, E Muraro, B Zeng, E Comaro, M Spada, S Donati, S M Santini, R Tarallo, G Giurato, F Rizzo, A Weisz, F Belardelli, R Dolcetti, J Dal Col
Although promising, the clinical benefit provided by dendritic cell (DC)-based vaccines is still limited and the choice of the optimal antigen formulation is still an unresolved issue. We have developed a new DC-based vaccination protocol for aggressive and/or refractory lymphomas which combines the unique features of interferon-conditioned DC (IFN-DC) with highly immunogenic tumor cell lysates (TCL) obtained from lymphoma cells undergoing immunogenic cell death. We show that treatment of mantle cell lymphoma (MCL) and diffuse large B-cell lymphoma (DLBCL) cell lines with 9-cis-retinoic acid and IFNα (RA/IFNα) induces early membrane exposure of Calreticulin, HSP70 and 90 together with CD47 down-regulation and enhanced HMGB1 secretion...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147485/the-effects-of-anti-fas-ribozyme-on-t-lymphocyte-apoptosis-in-mice-model-with-chronic-obstructive-pulmonary-disease
#19
Song-Ming Zhuo, Si-Cong Li, Yong-Qun Lin, Hai-Bin Yu, Na Li
Objectives: In this study, we aimed to investigate the effects of anti-Fas ribozyme on the apoptosis of T lymphocytes (T cells) in mice model with chronic obstructive pulmonary disease (COPD). Materials and Methods: Male 6-week-old C57BL/6 mice were used to establish the COPD model by exposure to cigarette smoke. The COPD mice were sacrificed for spleen dissection and T cell isolation. T cells were randomly divided into four groups (n=10 per group). Group A was used as the control...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146966/revisiting-the-role-of-interleukin-8-in-chronic-lymphocytic-leukemia
#20
Denise Risnik, Enrique Podaza, María B Almejún, Ana Colado, Esteban E Elías, Raimundo F Bezares, Horacio Fernández-Grecco, Santiago Cranco, Julio C Sánchez-Ávalos, Mercedes Borge, Romina Gamberale, Mirta Giordano
The proliferation and survival of malignant B cells in chronic lymphocytic leukemia (CLL) depend on signals from the microenvironment in lymphoid tissues. Among a plethora of soluble factors, IL-8 has been considered one of the most relevant to support CLL B cell progression in an autocrine fashion, even though the expression of IL-8 receptors, CXCR1 and CXCR2, on leukemic B cells has not been reported. Here we show that circulating CLL B cells neither express CXCR1 or CXCR2 nor they respond to exogenous IL-8 when cultured in vitro alone or in the presence of monocytes/nurse-like cells...
November 16, 2017: Scientific Reports
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