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Cancer and immune

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https://www.readbyqxmd.com/read/28927159/diagnostic-value-of-inflammatory-cell-infiltrates-tumor-stroma-percentage-and-disease-free-survival-in-patients-with-colorectal-cancer
#1
Katarzyna Jakubowska, Wojciech Kisielewski, Luiza Kańczuga-Koda, Mariusz Koda, Waldemar Famulski
The anticancer immune defense mechanism involves humoral and cellular responses. The main effector mechanisms of antitumor responses involve the following: the activity of cytotoxic T cells; the activation of macrophages and neutrophils; the activity of cytokines secreted by T cells; and natural killer cell activity. Selected cell populations are responsible for the stimulation or suppression of the immune system against tumor cells. Therefore, the aim of the present study was to evaluate the location, extent and composition of the cellular inflammatory infiltration of tumors in patients with colorectal cancer (CRC)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927140/itraq-coupled-2d-lc-ms-ms-analysis-of-cxcr7-transfected-papillary-thyroid-carcinoma-cells-a-new-insight-into-cxcr7-regulation-of-papillary-thyroid-carcinoma-progression-and-identification-of-potential-biomarkers
#2
Hengwei Zhang, Lei Yang, Zhangyi Liu, Chenxi Liu, Xuyong Teng, Lei Zhang, Bo Yin, Zhen Liu
Previous studies have demonstrated that C-X-C chemokine receptor type 7 (CXCR7) regulates papillary thyroid carcinoma (PTC) growth and metastasis; however, the molecular mechanisms underlying this regulation remain unclear. In the present study, the protein expression profiles of the PTC cell line GLAG-66 and GLAG-66 cells stably transfected with CXCR7 cDNA were analyzed and compared using isobaric tag for relative and absolute quantification-coupled two-dimensional liquid chromatography-tandem mass spectrometry...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927136/low-risk-population-among-patients-with-tumor-node-metastasis-stage-iii-iv-oral-squamous-cell-carcinoma
#3
Tohru Ikeda, Sachiko Seki, Mutsunori Fujiwara, Masaaki Matsuura, Yuu Ozaki-Honda, Shuichi Fujita, Hisazumi Ikeda, Masahiro Umeda, Izumi Asahina
A novel system auxiliary to the Union for International Cancer Control classification may allow the prognosis of patients with malignant tumors at similar stages to be predicted, as currently this is challenging. The present study generated a novel system to predict populations at low risk among patients with stage III/IV oral squamous cell carcinoma (OSCC). A total of 41 patients who were diagnosed at stages III/IV OSCC and underwent surgical tumor resection were analyzed. Band-like or follicular lymphocyte infiltration, intraepithelial micro-abscess formation and natural killer (NK) cell infiltration were histopathologically evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927119/effect-of-glutamine-enriched-nutritional-support-on-intestinal-mucosal-barrier-function-mmp-2-mmp-9-and-immune-function-in-patients-with-advanced-gastric-cancer-during-perioperative-chemotherapy
#4
Juan Wang, Yanfen Li, Yuanling Qi
We studied the effects of glutamine-enriched nutritional support on intestinal mucosal barrier, matrix metalloproteinase (MMP)-2, MMP-9 and immune function during perioperative chemotherapy in patients with advanced gastric cancer. The study was conducted on 94 patients with advanced gastric cancer admitted from April 2015 to March 2016. They were randomly divided into observation and control groups, n=47. Control group was given basic nutritional support whereas glutamine-enriched nutritional support was given to patients in observation group...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927079/new-use-of-microsatellite-instability-analysis-in-endometrial-cancer
#5
Haruko Kunitomi, Kouji Banno, Megumi Yanokura, Takashi Takeda, Moito Iijima, Kanako Nakamura, Miho Iida, Masataka Adachi, Keiko Watanabe, Yusuke Matoba, Yusuke Kobayashi, Eiichiro Tominaga, Daisuke Aoki
The increasing incidence of obesity and diabetes due to changes in diet, earlier menarche, delayed menopause, late marriage, and declining birth rate have resulted in an increase in the number of endometrial cancer cases over the last few decades. Although surgical therapy is sufficient for early endometrial cancer, there is no effective therapy for patients with advanced and recurrent endometrial cancer. The oncogenic mechanism of endometrial cancer involves microsatellite instability (MSI) caused by dysfunction of DNA mismatch repair genes in 30% of patients...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927065/mast-cell-chymase-affects-the-proliferation-and-metastasis-of-lung-carcinoma-cells-in-vitro
#6
Yuan Jiang, Yudan Wu, William James Hardie, Xiaoying Zhou
Metastasis of lung carcinoma cells is a major cause of organ failure and mortality of patients with lung cancer. Lung mast cells are a type of immune cell which reside in the respiratory mucosa. High numbers of mast cells are associated with the majority of common types of cancer; however, the effects of mast cells on cancer remain unclear. In the present study, the effects of mast cell chymase (MCC) on the proliferation and adhesion of the lung carcinoma cell lines A549 and H520 was investigated. After 24 h of treatment, the highest dose of MCC (50 mU/ml) decreased the proliferation rate of A549 and H520 cells, whereas the lowest dose of MCC (5 mU/ml) resulted in a small increase in the viability...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926962/anti-nkg2d-mab-a-new-treatment-for-crohn-s-disease
#7
REVIEW
Kasper Vadstrup, Flemming Bendtsen
Crohn's disease (CD) and ulcerative colitis (UC) are immunologically-mediated, debilitating conditions resulting from destructive inflammation of the gastrointestinal tract. The pathogenesis of IBD is incompletely understood, but is considered to be the result of an abnormal immune response with a wide range of cell types and proteins involved. Natural Killer Group 2D (NKG2D) is an activating receptor constitutively expressed on human Natural Killer (NK), γδ T, mucosal-associated invariant T (MAIT), CD56⁺ T, and CD8⁺ T cells...
September 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28926891/-advances-in-immune-checkpoint-inhibitors-in-gastrointestinal-cancer
#8
X R Zhu, L Z Zheng
Currently, immunotherapy is considered as the fourth major modality of cancer treatment except surgery, chemotherapy and radiotherapy. The new therapeutic approach based on immune checkpoint inhibitors is a landmark innovation. Strategies considering checkpoint inhibitors have shown good anti-tumor effect by targeting cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death protein 1 (PD-1) or programmed cell death ligand 1 (PD-L1). Moreover, DNA mismatch repair-deficient tumors appear to be potential candidates for these therapies...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926689/therapeutic-plasma-exchange-for-a-case-of-refractory-opsoclonus-myoclonus-ataxia-syndrome
#9
Jocelyn E Greensher, James Louie, Jonathan D Fish
Opsoclonus myoclonus ataxia syndrome (OMAS) can be refractory to standard therapies and devastating. Alternative treatments are imperative. A 14-month-old male diagnosed with neuroblastoma and paraneoplastic OMAS achieved complete cancer remission with chemotherapy. The OMAS, however, persisted over the subsequent 4 years despite numerous immune-modulatory and immunosuppressive therapies. The patient ultimately achieved complete remission following therapeutic plasma exchange (TPE) combined with rituximab and intravenous immunoglobulin...
September 19, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28926427/dna-methylation-targeted-drugs
#10
Elodie M Da Costa, Gabrielle McInnes, Annie Beaudry, Noël J-M Raynal
Targeting DNA hypermethylation, using nucleoside analogs, is an efficient approach to reprogram cancer cell epigenome leading to reduced proliferation, increased differentiation, recognition by the immune system, and ultimately cancer cell death. DNA methyltransferase inhibitors have been approved for the treatment of myelodysplastic syndromes, chronic myelomonocytic leukemia, and acute myelogenous leukemia. To improve clinical efficacy and overcome mechanisms of drug resistance, a second generation of DNA methyltransferase inhibitors has been designed and is currently in clinical trials...
September 2017: Cancer Journal
https://www.readbyqxmd.com/read/28926422/two-faces-of-hippo-activate-or-suppress-the-hippo-pathway-in-cancer
#11
Jingwen Cao, Wenlong Huang
The Hippo pathway has generated considerable interest in recent years because of its involvement in several key hallmarks of cancer progression and metastasis. Research on the Hippo signaling pathway in cancer has been used to determine the activity of yes-associated protein (YAP) in tumorigenesis and disease progression. Previous studies have shown that the Hippo pathway can be used as a target to inhibit YAP activity and is a viable treatment for cancer. However, more studies are required to further advance our understanding of the Hippo signaling pathway in cancer...
September 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28926101/the-metabolic-cross-talk-between-epithelial-cancer-cells-and-stromal-fibroblasts-in-ovarian-cancer-progression-autophagy-plays-a-role
#12
REVIEW
Chanitra Thuwajit, Alessandra Ferraresi, Rossella Titone, Peti Thuwajit, Ciro Isidoro
Cancer and stromal cells, which include (cancer-associated) fibroblasts, adipocytes, and immune cells, constitute a mixed cellular ecosystem that dynamically influences the behavior of each component, creating conditions that ultimately favor the emergence of malignant clones. Ovarian cancer cells release cytokines that recruit and activate stromal fibroblasts and immune cells, so perpetuating a state of inflammation in the stroma that hampers the immune response and facilitates cancer survival and propagation...
September 19, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28925992/efficacy-of-combining-ing4-and-trail-genes-in-cancer-targeting-gene-virotherapy-strategy-first-evidence-in-preclinical-hepatocellular-carcinoma
#13
A G El-Shemi, A M Ashshi, E Oh, B-K Jung, M Basalamah, A Alsaegh, C-O Yun
Current treatments of hepatocellular carcinoma (HCC) are ineffective and unsatisfactory in many aspects. Cancer-targeting gene virotherapy using oncolytic adenoviruses (OAds) armed with anticancer genes has shown efficacy and safety in clinical trials. Nowadays, both inhibitor of growth 4 (ING4); as a multimodal tumor suppressor gene, and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL); as potent-apoptosis inducing gene, are experiencing a renaissance in cancer gene therapy. Herein we investigated the antitumor activity and safety of mono-and combined therapy with OAds armed with ING4 (Ad-ΔB/ING4) and TRAIL (Ad-ΔB/TRAIL) gene, respectively, on preclinical models of human HCC...
September 19, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28925398/functional-significance-and-therapeutic-implication-of-ring-type-e3-ligases-in-colorectal-cancer
#14
REVIEW
L Liu, C C Wong, B Gong, J Yu
Accumulative studies revealed that E3 ubiquitin ligases have important roles in colorectal carcinogenesis. The pathogenic mechanisms of colorectal cancer (CRC) initiation and progression are complex and heterogeneous, involving somatic mutations, abnormal gene fusion, deletion or amplification and epigenetic alteration, which may cause aberrant expression or altered function of E3 ligases in CRC. Defects of E3 ligases have been reported to be involved in the molecular etiology and pathogenesis of CRC. The aberrant expressed E3 ligases can function as either oncogenes or tumor suppressors depending on ubiquiting target substrates in CRC...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28924382/linker-histone-in-diseases
#15
REVIEW
Xin Ye, ChuanLin Feng, Tian Gao, Guanqun Mu, Weiguo Zhu, Yang Yang
The linker histone is a protein that binds with the nucleosome, which is generally considered to achieve chromatin condensation in the nucleus. Accumulating evidences suggest that the linker histone is essential in the pathogenesis of several diseases. In this review, we briefly introduce the current knowledge of the linker histone, including its structure, characteristics and functions. Also, we move forward to present the advances of the linker histone's association with certain diseases, such as cancer, Alzheimer's disease, infection, male infertility and aberrant immunity situations, focusing on the alteration of the linker histone under certain pathological conditions and its role in developing each disease...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28924368/the-effects-of-perioperative-anesthesia-and-analgesia-on-immune-function-in-patients-undergoing-breast-cancer-resection-a-prospective-randomized-study
#16
Jin Sun Cho, Mi-Hyang Lee, Seung Il Kim, Seho Park, Hyung Seok Park, Ein Oh, Jong Ho Lee, Bon-Nyeo Koo
Introduction: Perioperative anesthesia and analgesia exacerbate immunosuppression in immunocompromised cancer patients. The natural killer (NK) cell is a critical part of anti-tumor immunity. We compared the effects of two different anesthesia and analgesia methods on the NK cell cytotoxicity (NKCC) in patients undergoing breast cancer surgery. Methods: Fifty patients undergoing breast cancer resection were randomly assigned to receive propofol-remifentanil anesthesia with postoperative ketorolac analgesia (Propofol-ketorolac groups) or sevoflurane-remifentanil anesthesia with postoperative fentanyl analgesia (Sevoflurane-fentanyl group)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28924177/loss-of-mapk-activated-protein-kinase-2-enables-potent-dendritic-cell-driven-anti-tumour-t-cell-response
#17
Klara Soukup, Angela Halfmann, Barbara Dillinger, Fiona Poyer, Katharina Martin, Bernadette Blauensteiner, Maximilian Kauer, Mario Kuttke, Gernot Schabbauer, Alexander M Dohnal
Maintaining dendritic cells (DC) in a state of dysfunction represents a key mechanism by which tumour cells evade recognition and elimination by the immune system. Limited knowledge about the intracellular mediators of DC dysfunction restricts success of therapies aimed at reactivating a DC-driven anti-tumour immune response. Using a cell type-specific murine knock-out model, we have identified MAPK-activated protein kinase 2 (MK2) as a major guardian of a suppressive DC phenotype in the melanoma tumour microenvironment...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924054/immunosurveillance-and-immunoediting-of-breast-cancer-via-class-i-mhc-receptors
#18
Megan M Tu, Mir Munir A Rahim, Celine Sayed, Ahmad Bakur Mahmoud, Andrew P Makrigiannis
Ly49 receptors, which recognize 'self' class I major histocompatibility complex (MHC-I) molecules, enable natural killer (NK) cells to detect loss of MHC-I expression on transformed and virally-infected cells. The impact of NK cell-mediated MHC-I surveillance on immunoediting of breast cancer is still not fully understood. This work assesses the impact of Ly49 receptors on tumor development in terms of cancer control and in driving immune-evading cancer mutations. Genetically modified Ly49-deficient mice and those lacking NK cells through antibody depletion were less able to control E0771-derived mammary tumors in an MHC-I-dependent fashion...
September 18, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28923860/in-silico-modeling-of-immunotherapy-and-stroma-targeting-therapies-in-human-colorectal-cancer
#19
Jakob Nikolas Kather, Jan Poleszczuk, Meggy Suarez-Carmona, Johannes Krisam, Pornpimol Charoentong, Nektarios A Valous, Cleo-Aron Weis, Luca Tavernar, Florian Leiss, Esther Herpel, Fee Klupp, Alexis Ulrich, Martin Schneider, Alexander Marx, Dirk Jaeger, Niels Halama
Despite the fact that the local immunological microenvironment shapes the prognosis of colorectal cancer, immunotherapy has shown no benefit for the vast majority of colorectal cancer patients. A better understanding of the complex immunological interplay within the microenvironment is required. In this study, we utilized wet lab migration experiments and quantitative histological data of human colorectal cancer tissue samples (n=20) including tumor cells, lymphocytes, stroma and necrosis to generate a multi-agent spatial model...
September 18, 2017: Cancer Research
https://www.readbyqxmd.com/read/28923859/upregulation-of-cystathionine-%C3%AE-synthase-in-colonic-epithelia-reprograms-metabolism-and-promotes-carcinogenesis
#20
Ches'Nique M Phillips, John Zatarain, Michael E Nicholls, Craig Porter, Steve G Widen, Ketan Thanki, Paul Johnson, Muhammad U Jawad, Mary Pat Moyer, James W Randall, Judith L Hellmich, Manjit Maskey, Suimin Qiu, Thomas Wood, Nadiya Druzhyna, Bartosz Szczesny, Katalin Modis, Csaba Szabo, Celia Chao, Mark R Hellmich
The transsulfuration enzyme cystathionine-β-synthase (CBS) and its product hydrogen sulfide (H2S) are aberrantly upregulated in colorectal cancers, where they contribute to tumor growth and progression by both autocrine and paracrine mechanisms. However, it is unknown whether the CBS/H2S axis plays a role in colorectal carcinogenesis. Here, we report upregulation of CBS in human biopsies of precancerous adenomatous polyps and show that forced upregulation of CBS in an adenoma-like colonic epithelial cell line is sufficient to induce metabolic and gene expression profiles characteristic of colorectal cancer cells...
September 18, 2017: Cancer Research
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