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https://www.readbyqxmd.com/read/28805741/alcohol-and-cancer-mechanisms-and-therapies
#1
REVIEW
Anuradha Ratna, Pranoti Mandrekar
Several scientific and clinical studies have shown an association between chronic alcohol consumption and the occurrence of cancer in humans. The mechanism for alcohol-induced carcinogenesis has not been fully understood, although plausible events include genotoxic effects of acetaldehyde, cytochrome P450 2E1 (CYP2E1)-mediated generation of reactive oxygen species, aberrant metabolism of folate and retinoids, increased estrogen, and genetic polymorphisms. Here, we summarize the impact of alcohol drinking on the risk of cancer development and potential underlying molecular mechanisms...
August 14, 2017: Biomolecules
https://www.readbyqxmd.com/read/28798777/mesenchymal-stem-cells-promote-metastasis-of-lung-cancer-cells-by-downregulating-systemic-antitumor-immune-response
#2
Marina Gazdic, Bojana Simovic Markovic, Nemanja Jovicic, Maja Misirkic-Marjanovic, Valentin Djonov, Vladimir Jakovljevic, Nebojsa Arsenijevic, Miodrag L Lukic, Vladislav Volarevic
Since majority of systemically administered mesenchymal stem cells (MSCs) become entrapped within the lungs, we used metastatic model of lung cancer, induced by intravenous injection of Lewis lung cancer 1 (LLC1) cells, to investigate the molecular mechanisms involved in MSC-mediated modulation of metastasis. MSCs significantly augmented lung cancer metastasis, attenuate concentrations of proinflammatory cytokines (TNF-α, IL-17), and increase levels of immunosuppressive IL-10, nitric oxide, and kynurenine in sera of LLC1-treated mice...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28795532/a-combination-of-anti-pd-l1-mab-plus-lm-llo-e6-vaccine-efficiently-suppresses-tumor-growth-and-metastasis-in-hpv-infected-cancers
#3
Po-Lin Lin, Ya-Min Cheng, De-Wei Wu, Yu-Ju Huang, Hun-Chi Lin, Chih-Yi Chen, Huei Lee
PD-1/PD-L1 immunotherapy is viewed as having clinical benefits in advanced cancers but is effective in only a few patients, suggesting that an efficient combination approach is needed to improve efficacy. Immunohistochemistry analysis indicated that PD-L1 expression was correlated with the E6 expression in tumors from 122 lung cancer patients. The poorest survival occurred in PD-L1-positive/E6-positive tumor. PD-L1 expression was increased by the expression of E6, but not the E7, oncoprotein in lung and cervical cancer cells...
August 9, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28759001/tumor-immunoevasion-by-the-conversion-of-effector-nk-cells-into-type-1-innate-lymphoid-cells
#4
Yulong Gao, Fernando Souza-Fonseca-Guimaraes, Tobias Bald, Susanna S Ng, Arabella Young, Shin Foong Ngiow, Jai Rautela, Jasmin Straube, Nic Waddell, Stephen J Blake, Juming Yan, Laurent Bartholin, Jason S Lee, Eric Vivier, Kazuyoshi Takeda, Meriem Messaoudene, Laurence Zitvogel, Michele W L Teng, Gabrielle T Belz, Christian R Engwerda, Nicholas D Huntington, Kyohei Nakamura, Michael Hölzel, Mark J Smyth
Avoiding destruction by immune cells is a hallmark of cancer, yet how tumors ultimately evade control by natural killer (NK) cells remains incompletely defined. Using global transcriptomic and flow-cytometry analyses and genetically engineered mouse models, we identified the cytokine-TGF-β-signaling-dependent conversion of NK cells (CD49a(-)CD49b(+)Eomes(+)) into intermediate type 1 innate lymphoid cell (intILC1) (CD49a(+)CD49b(+)Eomes(+)) populations and ILC1 (CD49a(+)CD49b(-)Eomes(int)) populations in the tumor microenvironment...
July 31, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28744322/visualization-of-tumor-immune-interaction-target-specific-imaging-of-s100a8-a9-reveals-pre-metastatic-niche-establishment
#5
Michel Eisenblaetter, Fabian Flores-Borja, Jae Jin Lee, Christina Wefers, Hannah Smith, Rebekka Hueting, Margaret S Cooper, Philip J Blower, Dominic Patel, Manuel Rodriguez-Justo, Hanna Milewicz, Thomas Vogl, Johannes Roth, Andrew Tutt, Tobias Schaeffter, Tony Ng
Background Systemic cancer spread is preceded by the establishment of a permissive microenvironment in the target tissue of metastasis - the premetastatic niche. As crucial players in establishment of the pre-metastatic niche, myeloid derived suppressor cells (MDSC) release S100A8/A9, an exosomal protein that contributes to metastasis, angiogenesis, and immune suppression. We report the application of antibody-based single-photon emission computed tomography (SPECT) for detection of S100A8/A9 in vivo as an imaging marker for pre-metastatic tissue priming...
2017: Theranostics
https://www.readbyqxmd.com/read/28735175/cancer-cell-membrane-coated-biomimetic-platform-for-tumor-targeted-photodynamic-therapy-and-hypoxia-amplified-bioreductive-therapy
#6
Shi-Ying Li, Hong Cheng, Wen-Xiu Qiu, Lu Zhang, Shuang-Shuang Wan, Jing-Yue Zeng, Xian-Zheng Zhang
Modulating tumor microenvironment to amplify the therapeutic efficiency would be a novel strategy for effective cancer treatment. In this work, based on the TPZ-loaded porphyrinic metal organic framework PCN-224 (PCN stands for porous coordination network), a cancer cell membrane-coated nanoplatform (TPZ@PCN@Mem) was fabricated for tumor targeted PDT and the successively resulting hypoxia-amplified bioreductive therapy. After administration, TPZ@PCN@Mem exhibited the selective accumulation and long-term retention at tumor tissue due to the immune escape and homologous targeting endowed by the cancer membrane coating...
October 2017: Biomaterials
https://www.readbyqxmd.com/read/28734166/naturally-occurring-immunomodulators-with-antitumor-activity-an-insight-on-their-mechanisms-of-action
#7
REVIEW
Shimaa Ibrahim Abdelmonym Mohamed, Ibrahim Jantan, Md Areeful Haque
Natural products with immunomodulatory activity are widely used in treatment of many diseases including autoimmune diseases, inflammatory disorders in addition to cancer. They gained a great interest in the last decades as therapeutic agents since they provide inexpensive and less toxic products than the synthetic chemotherapeutic agents. Immunomodulators are the agents that have the ability to boost or suppress the host defense response that can be used as a prophylaxis as well as in combination with other therapeutic modalities...
July 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28731284/the-rna-binding-protein-hur-inhibits-expression-of-ccl5-and-limits-recruitment-of-macrophages-into-tumors
#8
Thilo F Brauß, Sofia Winslow, Sebastian Lampe, Anica Scholz, Andreas Weigert, Nathalie Dehne, Kristoffer von Stedingk, Tobias Schmid, Bernhard Brüne
The RNA-binding protein HuR promotes tumor growth by affecting proliferation, metastasis, apoptosis, and angiogenesis. Although immune cells, especially tumor-associated macrophages, are critical components of the tumor stroma, the influence of HuR in tumors on the recruitment of immune cells remains poorly understood. In the present study, we therefore aimed to elucidate the impact of tumor cell HuR on the interaction between tumor cells and macrophages. To this end, we stably depleted HuR in human MCF-7 breast cancer cells...
July 21, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28714960/bin1-reverses-pd-l1-mediated-immune-escape-by-inactivating-the-c-myc-and-egfr-mapk-signaling-pathways-in-non-small-cell-lung-cancer
#9
J Wang, Y Jia, S Zhao, X Zhang, X Wang, X Han, Y Wang, M Ma, J Shi, L Liu
Non-small cell lung cancer (NSCLC) is one of the most common and malignant carcinoma worldwide, and the incidence and mortality are increasing rapidly. Immunotherapy targeting programmed death 1/programmed death ligand 1 (PD-L1) signaling has shown prominent clinical effects in treating NSCLC; however, a poor understanding of the associated regulating molecular mechanisms of PD-L1 has become one of the biggest obstacles for further improving efficacy. Bridging integrator-1 (BIN1) can regulate numerous cancer-related molecules to exert multiple tumor-suppressing effects by either interacting or not interacting with c-MYC...
July 17, 2017: Oncogene
https://www.readbyqxmd.com/read/28707199/radiation-induced-inflammatory-cascade-and-its-reverberating-crosstalks-as-potential-cause-of-post-radiotherapy-second-malignancies
#10
REVIEW
Sonia Gandhi, Sudhir Chandna
The disease-free survival following radiotherapy is often limited by the development of second/secondary cancers. This significant impediment to effective cancer treatment implicated even in the modern-day radiotherapy needs to be countered effectively. Critical analysis reveals that besides achieving effective tumor control, radiotherapy elicits certain cellular and systemic inflammatory events in tumor infiltrate, which remain relatively stable and tend to facilitate "in-field" or "out of field" oncogenesis in due course of time...
July 13, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28701895/decreased-serum-concentration-of-total-igg-is-related-to-tumor-progression-in-gastric-cancer-patients
#11
Hiroaki Saito, Kozo Miyatani, Yusuke Kono, Yuki Murakami, Hirohiko Kuroda, Tomoyuki Matsunaga, Yoji Fukumoto, Shuichi Takano, Tomohiro Osaki, Yoshiyuki Fujiwara
BACKGROUND: There is accumulating evidence that shows cell-mediated immunity regulated by T cells is impaired in cancer patients. Unfortunately, the mechanisms by which B cells participate in tumor immunity are only partially understood. METHODS: The serum concentration of Immunoglobulin G (IgG) was measured by Enzyme-Linked ImmunoSorbent Assay (ELISA) in patients with gastric cancer. Immunohistochemistry was also performed using the anti- cluster of differentiation (CD)134 antibody to evaluate the number of plasma cells in the tumor tissue...
June 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28699895/a-role-for-brg1-in-the-regulation-of-genes-required-for-development-of-the-lymphatic-system
#12
Ajeet Pratap Singh, Julie Foley, Arpit Tandon, Dhiral Phadke, H Karimi Kinyamu, Trevor K Archer
Lymphatic vasculature is an important part of the cardiovascular system with multiple functions, including regulation of the return of interstitial fluid (lymph) to the bloodstream, immune responses, and fat absorption. Consequently, lymphatic vasculature defects are involved in many pathological processes, including tumor metastasis and lymphedema. BRG1 is an important player in the developmental window when the lymphatic system is initiated. In the current study, we used tamoxifen inducible Rosa26CreERT2-BRG1floxed/floxed mice that allowed temporal analysis of the impact of BRG1 inactivation in the embryo...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28691927/ubiquitination-of-tumor-suppressor-pml-regulates-prometastatic-and-immunosuppressive-tumor-microenvironment
#13
Ya-Ting Wang, Jocelyn Chen, Chou-Wei Chang, Jayu Jen, Tzu-Yu Huang, Chun-Ming Chen, Roger Shen, Suh-Yuen Liang, I-Cheng Cheng, Shuenn-Chen Yang, Wu-Wei Lai, Kuang-Hung Cheng, Tao-Shih Hsieh, Ming-Zong Lai, Hung-Chi Cheng, Yi-Ching Wang, Ruey-Hwa Chen
The tumor microenvironment plays an important role in tumor growth and metastasis. However, the mechanism by which tumor cells regulate the cell and non-cell constituents of surrounding stroma remains incompletely understood. Promyelocytic leukemia (PML) is a pleiotropic tumor suppressor, but its role in tumor microenvironment regulation is poorly characterized. PML is frequently downregulated in many cancer types, including lung cancer. Here, we identify a PML ubiquitination pathway that is mediated by WD repeat 4-containing cullin-RING ubiquitin ligase 4 (CRL4WDR4)...
August 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28689639/regulation-of-inflammation-by-members-of-the-formyl-peptide-receptor-family
#14
REVIEW
Keqiang Chen, Zhiyao Bao, Wanghua Gong, Peng Tang, Teizo Yoshimura, Ji Ming Wang
Inflammation is associated with a variety of diseases. The hallmark of inflammation is leukocyte infiltration at disease sites in response to pathogen- or damage-associated chemotactic molecular patterns (PAMPs and MAMPs), which are recognized by a superfamily of seven transmembrane, Gi-protein-coupled receptors (GPCRs) on cell surface. Chemotactic GPCRs are composed of two major subfamilies: the classical GPCRs and chemokine GPCRs. Formyl-peptide receptors (FPRs) belong to the classical chemotactic GPCR subfamily with unique properties that are increasingly appreciated for their expression on diverse host cell types and the capacity to interact with a plethora of chemotactic PAMPs and MAMPs...
July 6, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28687750/5t4-specific-chimeric-antigen-receptor-modification-promotes-the-immune-efficacy-of-cytokine-induced-killer-cells-against-nasopharyngeal-carcinoma-stem-cell-like-cells
#15
Xueyang Guo, Hang Zheng, Weiren Luo, Qianbing Zhang, Jingxian Liu, Kaitai Yao
Relapse and metastasis of nasopharyngeal carcinoma (NPC) are presumably attributed to cancer stem cells (CSCs). In recent years, chimeric antigen receptor (CAR)-modified immune effector cells have been shown to have impressive antitumour efficacy. In this study, we aimed to identify appropriate tumour-associated antigens predominantly expressed on NPC stem cells (NPCSCs) and determine their suitability for CAR-engineered cytokine-induced killer (CIK) cell therapy against NPC. By investigating the expression patterns of potential target antigens (ROR1, 5T4 and CAIX) in NPC, we found that the oncofetal antigen 5T4 was predominately expressed in NPC cell lines and tissues but absent in non-cancerous nasopharyngeal tissues...
July 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28686632/autophagy-dependent-regulation-of-tumor-metastasis-by-myeloid-cells
#16
Masahisa Jinushi, Tomoko Morita, Zhihang Xu, Ichiro Kinoshita, Hirotoshi Dosaka-Akita, Hideo Yagita, Yutaka Kawakami
Autophagy is a vital process controlling the lysosomal degradation of cellular organelles and thereby regulating tissue homeostasis in an environment-dependent fashion. Recent studies have unveiled the critical role of tumor cell-derived autophagy in regulating pro-tumor and anti-tumor processes depending on different stages and tumor microenvironments. However, the precise mechanism whereby autophagy regulates tumor progression remains largely unclear. Since myeloid cells contribute to tumor progression and metastasis, we evaluated the role of myeloid cell-specific autophagy in the regulation of tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28685959/targeting-cholesterol-transport-in-circulating-melanoma-cells-to-inhibit-metastasis
#17
Yu-Chi Chen, Raghavendra Gowda, Raymond K Newswanger, Patrick Leibich, Barry Fell, Gerson Rosenberg, Gavin P Robertson
Despite recent break throughs in targeted- and immune-based therapies, rapid development of drug resistance remains a hurdle for the long-term treatment of melanoma patients. Targeting metastatically spreading circulating tumor cells (CTCs) may provide an additional approach to manage melanoma. This study investigates whether targeting cholesterol transport in melanoma CTCs can retard metastasis development. Nanolipolee-007, the liposomal form of leelamine, reduced melanoma metastasis in both a novel in vitro flow system mimicking the circulating system and in experimental as well as spontaneous animal metastasis models, irrespective of the BRAF mutational status of the CTCs...
July 7, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/28680750/il-33-restricts-tumor-growth-and-inhibits-pulmonary-metastasis-in-melanoma-bearing-mice-through-eosinophils
#18
Valeria Lucarini, Giovanna Ziccheddu, Iole Macchia, Valentina La Sorsa, Francesca Peschiaroli, Carla Buccione, Antonella Sistigu, Massimo Sanchez, Sara Andreone, Maria Teresa D'Urso, Massimo Spada, Daniele Macchia, Claudia Afferni, Fabrizio Mattei, Giovanna Schiavoni
The alarmin IL-33 is an IL-1 family member that stimulates pleiotropic immune reactions depending on the target tissue and microenvironmental factors. In this study, we have investigated the role of IL-33/ST2 axis in antitumor response to melanoma. Injection of IL-33 in mice-bearing subcutaneous B16.F10 melanoma resulted in significant tumor growth delay. This effect was associated with intratumoral accumulation of CD8(+) T cells and eosinophils, decrease of immunosuppressive myeloid cells, and a mixed Th1/Th2 cytokine expression pattern with local and systemic activation of CD8(+) T and NK cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28680744/intratumoral-delivery-of-tumor-antigen-loaded-dc-and-tumor-primed-cd4-t-cells-combined-with-agonist-%C3%AE-gitr-mab-promotes-durable-cd8-t-cell-dependent-antitumor-immunity
#19
Zuqiang Liu, Xingxing Hao, Yi Zhang, Jiying Zhang, Cara D Carey, Louis D Falo, Walter J Storkus, Zhaoyang You
The progressive tumor microenvironment (TME) coordinately supports tumor cell expansion and metastasis, while it antagonizes the survival and (poly-)functionality of antitumor T effector cells. There remains a clear need to develop novel therapeutic strategies that can transform the TME into a pro-inflammatory niche that recruits and sustains protective immune cell populations. While intravenous treatment with tumor-primed CD4(+) T cells combined with intraperitoneal delivery of agonist anti-glucocorticoid-induced TNF receptor (α-GITR) mAb results in objective antitumor responses in murine early stage disease models, this approach is ineffective against more advanced tumors...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28666268/myeloid-specific-genetic-ablation-of-atp-binding-cassette-transporter-abca1-is-protective-against-cancer
#20
Maryam Zamanian-Daryoush, Daniel J Lindner, Joseph A DiDonato, Matthew Wagner, Jennifer Buffa, Patricia Rayman, John S Parks, Marit Westerterp, Alan R Tall, Stanley L Hazen
Increased circulating levels of apolipoprotein A-I (apoA-I), the major protein of high-density lipoprotein (HDL), by genetic manipulation or infusion, protects against melanoma growth and metastasis. Herein, we explored potential roles in melanoma tumorigenesis for host scavenger receptor class B, type 1 (SR-B1), and ATP-binding cassette transporters A1 (ABCA1) and G1 (ABCG1), all mediators of apoA-I and HDL sterol and lipid transport function. In a syngeneic murine melanoma tumor model, B16F10, mice with global deletion of SR-B1 expression exhibited increased plasma HDL cholesterol (HDLc) levels and decreased tumor volume, indicating host SR-B1 does not directly contribute to HDL-associated anti-tumor activity...
June 27, 2017: Oncotarget
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