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https://www.readbyqxmd.com/read/28210201/therapeutic-effect-of-astragalus-polysaccharides-on-hepatocellular-carcinoma-h22-bearing-mice
#1
Xiaoyu Lai, Weibiao Xia, Jing Wei, Xinghong Ding
The purpose of this study was to investigate the effect of astragalus polysaccharides (APSs), active constituents of astragalus, in the treatment of hepatocellular carcinoma (HCC) and their potential as a promising candidate for future anticancer drug development. Astragalus polysaccharide was administered at different doses to HCC H22-bearing mice to investigate their antitumor effects. Results revealed that APS inhibited the growth of H22 cells with a tumor inhibition rate in the APS 400 mg·kg(-1) group of 59...
January 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28210081/role-of-lap-cd4-t-cells-in-the-tumor-microenvironment-of-colorectal-cancer
#2
Wu Zhong, Zhi-Yuan Jiang, Lei Zhang, Jia-Hao Huang, Shi-Jun Wang, Cun Liao, Bin Cai, Li-Sheng Chen, Sen Zhang, Yun Guo, Yun-Fei Cao, Feng Gao
AIM: To investigate the abundance and potential functions of LAP(+)CD4(+) T cells in colorectal cancer (CRC). METHODS: Proportions of LAP(+)CD4(+) T cells were examined in peripheral blood and tumor/paratumor tissues of CRC patients and healthy controls using flow cytometry. Expression of phenotypic markers such as forkhead box (Fox)p3, cytotoxic T-lymphocyte-associated protein (CTLA)-4, chemokine CC receptor (CCR)4 and CCR5 was measured using flow cytometry. LAP(-)CD4(+) and LAP(+)CD4(+) T cells were isolated using a magnetic cell-sorting system and cell purity was analyzed by flow cytometry...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28209712/mycobacterium-tuberculosis-esxl-inhibit-mhc-ii-expression-by-promoting-hypermethylation-in-class-ii-transactivator-loci-in-macrophages
#3
Srabasti Sengupta, Saba Naz, Ishani Das, Abdul Ahad, Avinash Padhi, Sumanta Naik, Geetanjali Ganguli, Kaliprasad Patnaik, Sunil Kumar Raghav, Vinay Nandicoori, Avinash Sonawane
Mycobacterium tuberculosis (Mtb) is known to modulate the host immune responses to facilitate its persistence inside the host cells. One of the key mechanisms includes repression of class-II transactivator (CIITA) and MHC-II expression in infected macrophages. However, the precise mechanism of CIITA and MHC-II down-regulation is not well studied. Mtb 6-kDa early secretory antigenic target (ESAT-6) is a known potent virulence and antigenic determinant. Mtb genome encodes 23 such ESAT-6 family proteins. We herein report that Mtb and M...
February 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28207826/changes-of-plasma-cytokines-and-chemokines-expression-level-in-nasopharyngeal-carcinoma-patients-after-treatment-with-definitive-intensity-modulated-radiotherapy-imrt
#4
Ya-Bin Jin, Guo-Yi Zhang, Kai-Rong Lin, Xiang-Ping Chen, Jin-Huan Cui, Yue-Jian Wang, Wei Luo
BACKGROUND: Potential clinical application values of certain cytokines and chemokines that participate in the process of tumor growth, invasion, and metastasis have been reported. However, there still lack of biomarkers for a great many of malignancy. This study identified cytokines or chemokines involved in the occurrence and development of nasopharyngeal carcinoma (NPC), which might be a biomarker for noninvasive early diagnosis. METHODS: The plasma levels of 19 cytokines and chemokines were detected by the luminex liquid array-based multiplexed immunoassays in 39 NPC patients before and after treatment by definitive intensity-modulated radiotherapy (IMRT)...
2017: PloS One
https://www.readbyqxmd.com/read/28206713/effect-of-heme-oxygenase-1-transduced-bone-marrow-mesenchymal-stem-cells-on-damaged-intestinal-epithelial-cells-in-vitro
#5
Yi Cao, Ben-Juan Wu, Wei-Ping Zheng, Ming-Li Yin, Tao Liu, Hong-Li Song
In this study we explored the effects of mesenchymal stem cells (MSCs) from bone marrow overexpressing heme oxygenase-1 (HO-1) on the damaged human intestinal epithelial barrier in vitro. Rat MSCs were isolated from bone marrow and transduced with rat HO-1 recombinant adenovirus (HO-MSCs) for stable expression of HO-1. Colorectal adenocarinoma 2 (Caco2) cells were treated with tumor necrosis factor-α (TNF-α) to establish a damaged colon epithelial model. Damaged Caco2 were cocultured with MSCs, Ad-MSCs, Ad-HO + MSCs or HO-MSCs mRNA and protein expression of Zona occludens-1 (ZO-1) and human HO-1, and the release of cytokines were measured...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28205361/immunotherapy-against-metastatic-bladder-cancer-by-combined-administration-of-granulocyte-macrophage-colony-stimulating-factor-and-interleukin-2-surface-modified-mb49-bladder-cancer-stem-cells-vaccine
#6
Chun-Yan Wang, Rui Hua, Li Liu, Xiaomin Zhan, Simei Chen, Song Quan, Qing-Jun Chu, Yong-Tong Zhu
In previous studies, it has been shown that the granulocyte macrophage-colony stimulating factor (GM-CSF) or interleukin-2 (IL-2) surface modified MB49 bladder cancer stem cells (MCSCs) vaccine could induce a specific antitumor immunity and against bladder cancer in mice model respectively. However, whether combined administration of GM-CSF and IL-2 could produce specific immune responses to cancer stem cells (CSCs) was uncertain. MCSCs were established and characterized. GM-CSF and IL-2 MCSCs vaccines were prepared and bioactivity was evaluated...
February 16, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28203287/specific-immunotherapy-in-renal-cancer-a-systematic-review
#7
REVIEW
Armin Hirbod-Mobarakeh, Hesam Addin Gordan, Zahra Zahiri, Mohammad Mirshahvalad, Sima Hosseinverdi, Brian I Rini, Nima Rezaei
BACKGROUND: Renal cell cancer (RCC) is the tenth most common malignancy in adults. In recent years, several approaches of active and passive immunotherapy have been studied extensively in clinical trials of patients with RCC. The aim of this systematic review was to assess the clinical efficacy of various approaches of specific immunotherapy in patients with RCC. METHODS: We searched Medline, Scopus, CENTRAL, TRIP, DART, OpenGrey and ProQuest without any language filter through to 9 October 2015...
February 2017: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/28201977/targeting-the-immune-niche-within-the-bone-marrow-microenvironment-the-rise-of-immunotherapy-in-multiple-myeloma
#8
Klaus Podar, D Jäger
Multiple Myeloma (MM) cells inhibit the development of an effective anti-MM immune response via defects in T cell function, ineffective antigen presentation; reduced phagocytic capacity; natural killer and dendritic cell dysfunction; decreased responsiveness to IL-2 and defects in B cell immunity; upregulation of inhibitory pathways; and production of excessive pro-inflammatory cytokines. Moreover, immune cells including plasmacytoid dendritic cells and macrophages trigger tumor cell proliferation, survival, and drug resistance...
February 13, 2017: Current Cancer Drug Targets
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
#9
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/28198830/-final-common-pathway-of-human-cancer-immunotherapy-targeting-random-somatic-mutations
#10
REVIEW
Eric Tran, Paul F Robbins, Steven A Rosenberg
Effective clinical cancer immunotherapies, such as administration of the cytokine IL-2, adoptive cell transfer (ACT) and the recent success of blockade of the checkpoint modulators CTLA-4 and PD-1, have been developed without clear identification of the immunogenic targets expressed by human cancers in vivo. Immunotherapy of patients with cancer through the use of ACT with autologous lymphocytes has provided an opportunity to directly investigate the antigen recognition of lymphocytes that mediate cancer regression in humans...
February 15, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28198394/cockroach-protease-allergen-induces-allergic-airway-inflammation-via-epithelial-cell-activation
#11
Sagar L Kale, Komal Agrawal, Shailendra Nath Gaur, Naveen Arora
Protease allergens are known to enhance allergic inflammation but their exact role in initiation of allergic reactions at mucosal surfaces still remains elusive. This study was aimed at deciphering the role of serine protease activity of Per a 10, a major cockroach allergen in initiation of allergic inflammation at mucosal surfaces. We demonstrate that Per a 10 increases epithelial permeability by disruption of tight junction proteins, ZO-1 and occludin, and enhances the migration of Monocyte derived dendritic cell precursors towards epithelial layer as exhibited by trans-well studies...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197868/plasma-levels-of-immune-factors-and-sex-steroids-in-the-male-seahorse-hippocampus-erectus-during-a-breeding-cycle
#12
Tingting Lin, Xin Liu, Dongxue Xiao, Dong Zhang
To better understand the endocrine- and immune-response pattern during reproduction in a fish species having parental care behaviors and also to accumulate the endocrine- and immune-related data for future explanations of the low reproductive efficiency in seahorse species, the variations of immune factors and sex steroids in the plasma of the male lined seahorse Hippocampus erectus at different breeding stages, i.e., pre-pregnancy, pregnancy (early, middle, and late periods), and post-pregnancy, were investigated in the present study...
February 14, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28197364/noninvasive-monitoring-of-cancer-therapy-induced-activated-t-cells-using-18-f-fb-il-2-pet-imaging
#13
S V Hartimath, O Draghiciu, S van de Wall, V Manuelli, R A J O Dierckx, H W Nijman, T Daemen, E F J de Vries
Cancer immunotherapy urgently calls for methods to monitor immune responses at the site of the cancer. Since activated T lymphocytes may serve as a hallmark for anticancer responses, we targeted these cells using the radiotracer N-(4-[(18)F]fluorobenzoyl)-interleukin-2 ([(18)F]FB-IL-2) for positron emission tomography (PET) imaging. Thus, we noninvasively monitored the effects of local tumor irradiation and/or immunization on tumor-infiltrating and systemic activated lymphocytes in tumor-bearing mice. A 10- and 27-fold higher [(18)F]FB-IL-2 uptake was observed in tumors of mice receiving tumor irradiation alone or in combination with immunization, respectively...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28197337/defective-t-cell-control-of-epstein-barr-virus-infection-in-multiple-sclerosis
#14
Michael P Pender, Peter A Csurhes, Jacqueline M Burrows, Scott R Burrows
Mounting evidence indicates that infection with Epstein-Barr virus (EBV) has a major role in the pathogenesis of multiple sclerosis (MS). Defective elimination of EBV-infected B cells by CD8(+) T cells might cause MS by allowing EBV-infected autoreactive B cells to accumulate in the brain. Here we undertake a comprehensive analysis of the T-cell response to EBV in MS, using flow cytometry and intracellular IFN-γ staining to measure T-cell responses to EBV-infected autologous lymphoblastoid cell lines and pools of human leukocyte antigen (HLA)-class-I-restricted peptides from EBV lytic or latent proteins and cytomegalovirus (CMV), in 95 patients and 56 EBV-seropositive healthy subjects...
January 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28197212/herbal-compound-jiedu-huayu-reduces-liver-injury-in-rats-via-regulation-of-il-2-tlr4-and-pcna-expression-levels
#15
Minggang Wang, Qinglan Shi, Rongzhen Zhang, Hua Qiu, Dewen Mao, Fuli Long
Aim of the Study. To investigate the preventative effects of Jiedu Huayu (JDHY) on D-galactosamine (D-GalN) and lipopolysaccharide-induced acute liver failure (ALF) and to evaluate the possible mechanisms of action. Materials and Methods. ALF was induced in Wistar rats by administrating D-GalN (900 mg/kg) and lipopolysaccharide (10 μg/kg). After treatment with JDHY granules, the levels of blood alanine aminotransferase, aspartate aminotransferase, total bilirubin, and prothrombin time were determined. Proliferating cell nuclear antigen was detected by immunohistochemistry staining...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28195094/association-of-interleukin-2-4-and-10-with-dengue-severity
#16
Kumar S Abhishek, Anita Chakravarti, C P Baveja, Naresh Kumar, Oves Siddiqui, Suman Kumar
BACKGROUND: Dengue is an arboviral disease caused by four distinct serotypes of dengue virus. The pathogenesis of dengue is not very clearly understood. Various pro- and anti-inflammatory cytokines are involved in the immune pathogenesis of dengue. Interleukin (IL)-2/IL-2 receptor interaction is supposed to play a protective role, while IL-4 acts as pro-inflammatory whereas IL-10 acts as anti-inflammatory cytokines. So far, not much information is available regarding the established role of these cytokines with dengue infection and severity...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28194264/agrobacterium-sp-derived-%C3%AE-1-3-glucan-enhances-natural-killer-cell-activity-in-healthy-adults-a-randomized-double-blind-placebo-controlled-parallel-group-study
#17
Yeon Joo Lee, Doo-Jin Paik, Dae Young Kwon, Hye Jeong Yang, Yongsoon Park
BACKGROUND/OBJECTIVES: The present study investigated the hypothesis that a highly pure linear β-1,3-glucan produced by Agrobacterium sp. R259 enhances human natural killer (NK) cell activity and suppresses pro-inflammatory cytokines. SUBJECTS/METHODS: In an eight-week, double-blind, randomized, placebo-controlled clinical trial, 83 healthy adults with white blood cell counts of 4,000-8,000 cells/µL were participated and randomly assigned to take two capsules per day containing either 350 mg β-1,3-glucan or placebo...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28194024/regnase-1-a-rapid-response-ribonuclease-regulating-inflammation-and-stress-responses
#18
REVIEW
Renfang Mao, Riyun Yang, Xia Chen, Edward W Harhaj, Xiaoying Wang, Yihui Fan
RNA-binding proteins (RBPs) are central players in post-transcriptional regulation and immune homeostasis. The ribonuclease and RBP Regnase-1 exerts critical roles in both immune cells and non-immune cells. Its expression is rapidly induced under diverse conditions including microbial infections, treatment with inflammatory cytokines and chemical or mechanical stimulation. Regnase-1 activation is transient and is subject to negative feedback mechanisms including proteasome-mediated degradation or mucosa-associated lymphoid tissue 1 (MALT1) mediated cleavage...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28193829/soluble-cd83-inhibits-t-cell-activation-by-binding-to-the-tlr4-md-2-complex-on-cd14-monocytes
#19
Joe M Horvatinovich, Elizabeth W Grogan, Marcus Norris, Alexander Steinkasserer, Henrique Lemos, Andrew L Mellor, Irina Y Tcherepanova, Charles A Nicolette, Mark A DeBenedette
The transmembrane protein CD83, expressed on APCs, B cells, and T cells, can be expressed as a soluble form generated by alternative splice variants and/or by shedding. Soluble CD83 (sCD83) was shown to be involved in negatively regulating the immune response. sCD83 inhibits T cell proliferation in vitro, supports allograft survival in vivo, prevents corneal transplant rejection, and attenuates the progression and severity of autoimmune diseases and experimental colitis. Although sCD83 binds to human PBMCs, the specific molecules that bind sCD83 have not been identified...
February 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28193636/evaluation-of-jak3-biology-in-autoimmune-disease-using-a-highly-selective-irreversible-jak3-inhibitor
#20
Fiona Elwood, David Witter, Jennifer Piesvaux, Brian Kraybill, Nathan Bays, Carla Alpert, Peter Goldenblatt, Yujie Qu, Irena Ivanovska, Hyun-Hee Lee, Chi-Sung Chiu, Hao Tang, Mark E Scott, Sujal Deshmukh, Mark Zielstorff, Alan Byford, Kalyan Chakravarty, Lauren Dorosh, Alexy Rivkin, Joel Klappenbach, Bo-Sheng Pan, Ilona Kariv, Christopher Dinsmore, Deborah Slipetz, Peter Dandliker
Reversible Janus kinase (JAK) inhibitors such as Tofacitinib(Changelian, et al., 2003;Flanagan, et al., 2010) and Decernotinib(Farmer, et al., 2015;Mahajan, et al., 2015) block cytokine signaling and are efficacious in treating autoimmune diseases (Kremer, et al., 2009;Fleischmann, et al., 2015;Fleischmann, et al., 2015;Krueger, et al., 2016;Sandborn, et al., 2012). However therapeutic doses are limited due to inhibition of other JAK/STAT pathways associated with hematopoiesis, lipid biogenesis, infection and immune responses(Kahn C, 2012)...
February 13, 2017: Journal of Pharmacology and Experimental Therapeutics
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