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https://www.readbyqxmd.com/read/28212583/role-of-topk-in-lipopolysaccharide-induced-breast-cancer-cell-migration-and-invasion
#1
Min-Ah Seol, Jung-Hwan Park, Ji Heun Jeong, Jungmook Lyu, Seung Yun Han, Sang-Muk Oh
Inflammation has been known to be linked to invasion or metastasis of breast cancer, which has poor prognosis, although the regulatory mechanism remains to be undiscovered. Here we show that T-LAK cell-originated protein kinase (TOPK) mediates pro-inflammatory endotoxin lipopolysaccharide (LPS)-induced breast cancer cell migration and invasion. The mRNA or protein level of TOPK, toll- like receptor4 (TLR4), interleukin (IL)-6, vascular endothelial growth factor (VEGF) or matrix metalloproteinase9 (MMP9) genes related to TLR4 signaling or tumor progression was induced by LPS treatment in MCF7 breast cancer cells, but the induction was abolished by stable knocking down of TOPK in MCF7 cells...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212561/the-tlr7-agonist-imiquimod-induces-anti-cancer-effects-via-autophagic-cell-death-and-enhances-anti-tumoral-and-systemic-immunity-during-radiotherapy-for-melanoma
#2
Jeong Hyun Cho, Hyo-Ji Lee, Hyun-Jeong Ko, Byung-Il Yoon, Jongseon Choe, Keun-Cheol Kim, Tae-Wook Hahn, Jeong A Han, Sun Shim Choi, Young Mee Jung, Kee-Ho Lee, Yun-Sil Lee, Yu-Jin Jung
Toll-like receptor (TLR) ligands are strongly considered immune-adjuvants for cancer immunotherapy and have been shown to exert direct anti-cancer effects. This study was performed to evaluate the synergistic anti-cancer and anti-metastatic effects of the TLR7 agonist imiquimod (IMQ) during radiotherapy for melanoma. The pretreatment of B16F10 or B16F1 cells with IMQ combined with γ-ionizing radiation (IR) led to enhanced cell death via autophagy, as demonstrated by increased expression levels of autophagy-related genes, and an increased number of autophagosomes in both cell lines...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28211903/activating-killer-immunoglobulin-receptors-and-hla-c-a-successful-combination-providing-hiv-1-control
#3
Mauro S Malnati, Elisabetta Ugolotti, Maria Cristina Monti, Davide De Battista, Irene Vanni, Domenico Bordo, Francesca Sironi, Patrizia Larghero, Eddi Di Marco, Priscilla Biswas, Guido Poli, Elisa Vicenzi, Agostino Riva, Maciej Tarkowski, Giuseppe Tambussi, Silvia Nozza, Gino Tripodi, Francesco Marras, Andrea De Maria, Angela Pistorio, Roberto Biassoni
Several studies demonstrated a relevant role of polymorphisms located within the HLA-B and -C loci and the Killer Immunoglobulin Receptors (KIRs) 3DL1 and 3DS1 in controlling HIV-1 replication. KIRs are regulatory receptors expressed at the surface of NK and CD8+ T-cells that specifically bind HLA-A and -B alleles belonging to the Bw4 supratype and all the -C alleles expressing the C1 or C2 supratype. We here disclose a novel signature associated with the Elite Controller but not with the long-term nonprogressor status concerning 2DS activating KIRs and HLA-C2 alleles insensitive to miRNA148a regulation...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211345/regulatory-t-and-b-cells-in-asthmatic-women-variations-from-pregnancy-to-postpartum
#4
C Martins, J Lima, G Nunes, L M Borrego
BACKGROUND AND OBJECTIVE: Allergic asthma and rhinitis are common in pregnancy. The immune mechanisms underlying the effects of asthma on pregnancy and vice versa are not completely understood. The aim of this study was to investigate changes in regulatory T and B cells in asthmatic women from late pregnancy to postpartum. METHODS: Four groups of women were enrolled for this study: asthmatic (n=23) and healthy (n=43) third trimester-pregnant women and asthmatic (n=33) and healthy (n=35) nonpregnant women...
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28211077/severe-bullous-pemphigoid-associated-with-pembrolizumab-therapy-for-metastatic-melanoma-with-complete-regression
#5
O Rofe, G Bar-Sela, Z Keidar, T Sezin, C D Sadik, R Bergman
Bullous pemphigoid (BP) is considered to be a humorally mediated autoimmune disease, but autoreactive T-cells and T-regulatory cells (Tregs) have also been implicated in this disease. Tregs and the programmed death-1 (PD-1) : programmed death ligand (PD-L) pathway are both critical in terminating immune response, and elimination of either can result in breakdown of tolerance and development of autoimmunity. We report a patient with metastatic malignant melanoma (MM), who underwent pembrolizumab (anti-PD-1) therapy following unsuccessful treatment with ipilimumab [anti-cytotoxic T-lymphocyte-associated protein (CTLA)-4]...
February 16, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28210072/the-parenteral-vitamin-c-improves-sepsis-and-sepsis-induced-multiple-organ-dysfunction-syndrome-via-preventing-cellular-immunosuppression
#6
Yu-Lei Gao, Bin Lu, Jian-Hua Zhai, Yan-Cun Liu, Hai-Xia Qi, Ying Yao, Yan-Fen Chai, Song-Tao Shou
Cellular immunosuppression appears to be involved in sepsis and sepsis-induced multiple organ dysfunction syndrome (MODS). Recent evidence showed that parenteral vitamin C (Vit C) had the ability to attenuate sepsis and sepsis-induced MODS. Herein, we investigated the impact of parenteral Vit C on cellular immunosuppression and the therapeutic value in sepsis. Using cecal ligation and puncture (CLP), sepsis was induced in WT and Gulo(-/-) mice followed with 200 mg/Kg parenteral Vit C administration. The immunologic functions of CD4(+)CD25(+) regulatory T cells (Tregs) and CD4(+)CD25(-) T cells, as well as the organ functions, were determined...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28208221/increased-fas-ligand-expression-of-peripheral-b-1-cells-correlated-with-cd4-t-cell-apoptosis-in-filarial-infected-patients
#7
Rashmi Mishra, Santosh K Panda, Prakash K Sahoo, Bal, A K Satapathy
Cellular hypo responsiveness observed during helminth infections are attributed to factors like Antigen presenting cells (APC) dysfunction, increased Interleukin-10(IL-10), regulatory T cells and induction of CD4(+) T (Th) cell apoptosis.. Increased Fas ligand (FasL) expression on the surface of B-1 cells and induction of apoptosis of Th cells by FasL expressing B-1 cells due to helminth infection was demonstrated in murine model of helminth infection where as profile of FasL expression, Th cell apoptosis and correlation between these two populations of cells in clinical filariasis remain unknown...
February 16, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28208209/the-emergence-of-tnik-inhibitors-in-cancer-therapeutics
#8
REVIEW
Tesshi Yamada, Mari Masuda
The outcome of patients with metastatic colorectal cancer remains unsatisfactory. To improve patient prognosis, it will be necessary to identify new drug targets based on molecules that are essential for colorectal carcinogenesis, and to develop therapeutics that target such molecules. The great majority of colorectal cancers (>90%) have mutations in at least one Wnt signaling pathway gene. Aberrant activation of Wnt signaling is a major force driving colorectal carcinogenesis. Several therapeutics targeting Wnt pathway molecules, including porcupine, frizzled receptors, and tankyrases, have been developed, but none of them have yet been incorporated into clinical practice...
February 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/28207945/cd4-cd25-garp-tregs-display-a-compromised-suppressive-function-in-patients-with-dilated-cardiomyopathy
#9
Yuzhen Wei, Kunwu Yu, Hui Wei, Xin Su, Ruirui Zhu, Huairui Shi, Haitao Sun, Quan Luo, Wenbin Xu, Junhui Xiao, Yucheng Zhong, Qiutang Zeng
Dilated cardiomyopathy (DCM) is a lethal inflammatory heart disease and closely connected with dysfunction of the immune system. Glycoprotein -A repetitions predominant (GARP) expressed on activated CD4(+) T cells with suppressive activity has been established. This study aimed to investigate the frequency and function of circulating CD4(+) CD25(+) GARP(+) regulatory T cells (Tregs) in DCM. 45 DCM patients and 46 controls were enrolled in this study. There was a significant increase in peripheral Th1 and Th17 number and their related cytokines (IFN-γ, IL-17), and an obvious decrease in Treg number, TGF-β1 levels and the expression of FOXP3 and GARP in patients with DCM as compared with controls...
February 16, 2017: Immunology
https://www.readbyqxmd.com/read/28207428/il-37-ameliorates-coxsackievirus-b3-induced-viral-myocarditis-by-modulating-the-th17-treg-immune-response
#10
Bang An, Xuefei Liu, Ge Li, Haitao Yuan
Myocarditis is a heterogeneous group of disorders defined by inflammation of the heart muscle with an excessively activated immune response. Numerous interventions have been investigated for the treatment of myocarditis while success is limited. Interleukin-37 (IL-37), a novel member of the IL-1 cytokine family, is a natural inhibitor of innate immunity associated with autoimmune diseases. However, the modulatory effect of IL-37 in myocarditis is unknown. In this study, we investigated the immunological regulation of IL-37 in the coxsackievirus B3-induced model of murine viral myocarditis...
February 14, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28205558/plant-based-vaccines-for-oral-delivery-of-type-1-diabetes-related-autoantigens-evaluating-oral-tolerance-mechanisms-and-disease-prevention-in-nod-mice
#11
Amanda L Posgai, Clive H Wasserfall, Kwang-Chul Kwon, Henry Daniell, Desmond A Schatz, Mark A Atkinson
Autoantigen-specific immunological tolerance represents a central objective for prevention of type 1 diabetes (T1D). Previous studies demonstrated mucosal antigen administration results in expansion of Foxp3(+) and LAP(+) regulatory T cells (Tregs), suggesting oral delivery of self-antigens might represent an effective means for modulating autoimmune disease. Early preclinical experiments using the non-obese diabetic (NOD) mouse model reported mucosal administration of T1D-related autoantigens [proinsulin or glutamic acid decarboxylase 65 (GAD)] delayed T1D onset, but published data are conflicting regarding dose, treatment duration, requirement for combinatorial agents, and extent of efficacy...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202513/myeloid-cells-that-impair-immunotherapy-are-restored-in-melanomas-which-acquire-resistance-to-braf-inhibitors
#12
Shannon M Steinberg, Tamer Shabaneh, Peisheng Zhang, Viktor Martyanov, Zhenghui Li, Brian Malik, Tammara Wood, Andrea Boni, Aleksey Molodtsov, Christina V Angeles, Tyler J Curiel, Michael Whitfield, Mary Jo Turk
Acquired resistance to BRAFV600E inhibitors (BRAFi) in melanoma remains a common clinical obstacle, as is the case for any targeted drug therapy that can be developed given the plastic nature of cancers. While there has been significant focus on the cancer cell-intrinsic properties of BRAFi resistance, the impact of BRAFi resistance on host immunity has not been explored. Here we provide preclinical evidence that resistance to BRAFi in an autochthonous mouse model of melanoma is associated with restoration of myeloid-derived suppressor cells (MDSC) in the tumor microenvironment initially reduced by BRAFi treatment...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28202460/t-regulatory-cells-and-dendritic-cells-protect-against-transfusion-related-acute-lung-injury-via-il-10
#13
Rick Kapur, Michael Kim, Rukhsana Aslam, Mark J McVey, Arata Tabuchi, Alice Luo, Jonathan Liu, Yuan Li, Shanjeevan Shanmugabhavananthan, Edwin R Speck, Anne Zufferey, George Yousef, Haibo Zhang, Mathew T Rondina, Andrew S Weyrich, Leendert Porcelijn, Wolfgang M Kuebler, Arthur S Slutsky, John W Semple
Transfusion-related acute lung injury (TRALI) is the leading cause of transfusion-related fatalities and is characterized by acute respiratory distress following blood transfusion. Donor antibodies are frequently involved, however, the pathogenesis and protective mechanisms in the recipient are poorly understood and specific therapies are lacking. Using newly developed murine TRALI models based on injection of anti-MHC class I antibodies, we found CD4+CD25+FoxP3+ T-regulatory cells (Tregs) and CD11c+ dendritic cells (DCs) to be critical effectors that protect against TRALI...
February 15, 2017: Blood
https://www.readbyqxmd.com/read/28202068/the-dna-damage-response-promotes-polyomavirus-jc-infection-by-nucleus-to-cytoplasm-nf-kappab-activation
#14
Martyn K White, Anna Bellizzi, Gabriele Ibba, Valeria Pietropaolo, Anna T Palamara, Hassen S Wollebo
BACKGROUND: Infection of glial cells by human neurotropic polyomavirus JC (JCV), the causative agent of the CNS demyelinating disease progressive multifocal leukoencephalopathy (PML), rapidly inflicts damage to cellular DNA. This activates DNA damage response (DDR) signaling including induction of expression of DNA repair factor Rad51. We previously reported that Rad51 co-operates with the transcription factor NF-κB p65 to activate JCV early transcription. Thus Rad51 induction by JCV infection may provide positive feedback for viral activation early in JCV infection...
February 15, 2017: Virology Journal
https://www.readbyqxmd.com/read/28201972/cell-based-tolerogenic-therapy-experience-from-animal-models-of-multiple-sclerosis-type-1-diabetes-and-rheumatoid-arthritis
#15
Ivana Stojanović, Mirjana Dimitrijević, Marta Vives-Pi, Maria Jose Mansilla, Irma Pujol-Autonell, Silvia Rodríguez-Fernandez, Lenka Palová-Jelínková, David P Funda, Alisa Gruden-Movsesijan, Ljiljana Sofronić-Milosavljević, Catharien M U Hilkens, Eva Martinez Caceres, Djordje Miljković
Cell-based tolerogenic therapy is a promising approach for the treatment of autoimmune diseases and transplant rejection. Regulatory T cells and tolerogenic dendritic cells have been particularly explored in the treatment of various autoimmune disorders in experimental models of disease. Although some of these cells have already been tested in a limited number of clinical trials, there is still a need for preclinical research on tolerogenic cells in animal models of autoimmunity. This review will focus on the relevance of data obtained from studies in experimental animal models for the use of tolerogenic cell-based therapy in humans...
February 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28199730/fentanyl-suppresses-the-survival-of-cd4-t-cells-isolated-from-human-umbilical-cord-blood-through-inhibition-of-ikks-mediated-nf-%C3%AE%C2%BAb-activation
#16
Kun Ma, Pengyu Ma, Huaihai Lu, Shuxiang Liu, Qinying Cao
The aim of this study was to investigate the effects and the underlying mechanisms of fentanyl anesthetic on T lymphocytes isolated from human umbilical cord bloodin vitro. The percentages of CD4(+) , CD8(+) , and regulatory T (Treg) cells in human umbilical cord blood mononuclear cells (UBMC) treated with fentanyl in vitrowere analyzed by flow cytometry. The levels of cytokines IFN-γ, IL-2, IL-4, and IL-17 secreted by activated CD4(+) T cells were measured by ELISA assays. Expressions of MAPK and NF-κB signaling pathway proteins were determined by Western blotting...
February 15, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28198366/th17-cells-express-st2-and-are-controlled-by-the-alarmin-il-33-in-the-small-intestine
#17
A Pascual-Reguant, J Bayat Sarmadi, C Baumann, R Noster, D Cirera-Salinas, C Curato, P Pelczar, S Huber, C E Zielinski, M Löhning, A E Hauser, E Esplugues
TH17 cells are major drivers of inflammation and involved in several autoimmune diseases. Tissue inflammation is a beneficial host response to infection, but it can also contribute to autoimmunity. The crosstalk between a tissue and the immune system during an inflammatory response is key for preserving tissue integrity and restoring physiological processes. However, how the inflamed tissue regulates the magnitude of an immune response by controlling pro-inflammatory T cells is not well characterized so far...
February 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28198026/quantitative-assessment-of-haemolysis-secondary-to-modern-infusion-pumps
#18
T G Poder, J-C Boileau, R Lafrenière, L Thibault, N Carrier, M-J de Grandmont, P Beauregard
BACKGROUND: Although most studies have shown that little haemolysis is induced by infusion pumps, there are some notable exceptions. Only limited data are available on the actual infusion pumps that are most used in hospitals in Quebec and elsewhere, namely, the Infusomat(®) Space (peristaltic), Plum A+™ (piston) and Colleague(®) CXE (shuttle) pumps. METHODS: Haemolysis and potassium levels were compared before and after the use of the three different infusion pumps...
February 15, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28197641/m%C3%A3-llerian-inhibiting-substance-inhibits-an-ovarian-cancer-cell-line-via-%C3%AE-catenin-interacting-protein-deregulation-of-the-wnt-signal-pathway
#19
Sang Ho Park, Youn Jee Chung, Jae Yen Song, Sang Il Kim, David Pépin, David T MacLaughlin, Patricia K Donahoe, Jang Heub Kim
Müllerian inhibiting substance/anti-Müllerian hormone (MIS/AMH) has been suggested as a biotherapeutic agent in gynecological cancers that highly express the MIS/AMH type II receptors (MISRII/AMHRII) but the anticancer mechanisms by which MIS/AMH acts are not fully understood. Our experiments show that MIS/AMH inhibits ovarian cancer by deregulating the Wnt signal pathway via the β-catenin interacting protein (ICAT). MIS/AMH inhibition of ICAT by small interfering RNAs (siRNA) decreased ICAT driven ovarian cancer cell viability as measured by the methylthiazoltetrazolium assay, reversed cell cycle arrest and annexin V expression and diminished migration by scratch wound assay...
February 13, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28197381/immunological-mechanisms-of-intravesical-chitosan-interleukin-12-immunotherapy-against-murine-bladder-cancer
#20
Sean G Smith, John L Baltz, Bhanu Prasanth Koppolu, Sruthi Ravindranathan, Khue Nguyen, David A Zaharoff
There is a critical unmet clinical need for bladder cancer immunotherapies capable of inducing durable antitumor immunity. We have shown that four intravesical treatments with a simple co-formulation of interleukin-12 and the biopolymer chitosan not only destroy orthotopic bladder tumors, but also promote a potent long-lasting systemic immune response as evidenced through tumor-specific in vitro killing assays, complete protection from rechallenge, and abscopal antitumor responses at distant non-treated tumors...
2017: Oncoimmunology
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