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tumor associated macrophage

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https://www.readbyqxmd.com/read/29667176/pre-diagnostic-blood-immune-markers-incidence-and-progression-of-b-cell-lymphoma-and-multiple-myeloma-univariate-and-functionally-informed-multivariate-analyses
#1
Roel Vermeulen, Fatemeh Saberi Hosnijeh, Barbara Bodinier, Lützen Portengen, Benoît Liquet, Javiera Garrido-Manriquez, Henk Lokhorst, Ingvar A Bergdahl, Soterios A Kyrtopoulos, Ann-Sofie Johansson, Panagiotis Georgiadis, Beatrice Melin, Domenico Palli, Vittorio Krogh, Salvatore Panico, Carlotta Sacerdote, Rosario Tumino, Paolo Vineis, Raphaële Castagné, Marc Chadeau-Hyam
Recent prospective studies have shown that dysregulation of the immune system may precede the development of B-cell lymphomas (BCL) in immunocompetent individuals. However, to date, the studies were restricted to a few immune markers, which were considered separately. Using a nested case-control study within two European prospective cohorts, we measured plasma levels of 28 immune markers in samples collected a median of 6 years prior to diagnosis (range, 2.01-15.97) in 268 incident cases of BCL (including multiple myeloma) and matched controls...
April 18, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29667169/expression-of-scavenger-receptor-marco-defines-a-targetable-tumor-associated-macrophage-subset-in-non-small-cell-lung-cancer
#2
Linnéa La Fleur, Vanessa F Boura, Andrey Alexeyenko, Anders Berglund, Victor Pontén, Johanna Sm Mattsson, Dijana Djureinovic, Johan Persson, Hans Brunnström, Johan Isaksson, Eva Brandén, Hirsh Koyi, Patrick Micke, Mikael Ci Karlsson, Johan Botling
Tumor-associated macrophages (TAMs) are attractive targets for immunotherapy. Recently, studies in animal models showed that treatment with an anti-TAM antibody directed against the scavenger receptor MARCO resulted in suppression of tumor growth and metastatic dissemination. Here we investigated the expression of MARCO in relation to other macrophage markers and immune pathways in a non-small cell lung cancer (NSCLC) cohort (n=352). MARCO, CD68, CD163, MSR1 and programmed death ligand-1 (PD-L1) were analyzed by immunohistochemistry and immunofluorescence, and associations to other immune cells and regulatory pathways were studied in a subset of cases (n=199) with available RNA-seq data...
April 18, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29666270/mk2-contributes-to-tumor-progression-by-promoting-m2-macrophage-polarization-and-tumor-angiogenesis
#3
Lucia Suarez-Lopez, Ganapathy Sriram, Yi Wen Kong, Sandra Morandell, Karl A Merrick, Yuliana Hernandez, Kevin M Haigis, Michael B Yaffe
Chronic inflammation is a major risk factor for colorectal cancer. The p38/MAPKAP Kinase 2 (MK2) kinase axis controls the synthesis of proinflammatory cytokines that mediate both chronic inflammation and tumor progression. Blockade of this pathway has been previously reported to suppress inflammation and to prevent colorectal tumorigenesis in a mouse model of inflammation-driven colorectal cancer, by mechanisms that are still unclear. Here, using whole-animal and tissue-specific MK2 KO mice, we show that MK2 activity in the myeloid compartment promotes tumor progression by supporting tumor neoangiogenesis in vivo...
April 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29665011/colony-stimulating-factor-1-receptor-blockade-improves-the-efficacy-of-chemotherapy-against-human-neuroblastoma-in-the-absence-of-t-lymphocytes
#4
Matthew W Webb, Jianping Sun, Michael A Sheard, Wei-Yao Liu, Hong-Wei Wu, Jeremy R Jackson, Jemily Malvar, Richard Sposto, Dylan Daniel, Robert C Seeger
Tumor-associated macrophages can promote growth of cancers. In neuroblastoma, tumor-associated macrophages have greater frequency in metastatic versus loco-regional tumors, and higher expression of genes associated with macrophages helps to predict poor prognosis in the 60% of high-risk patients who have MYCN-non-amplified disease. The contribution of cytotoxic T-lymphocytes to anti-neuroblastoma immune responses may be limited by low MHC class I expression and low exonic mutation frequency. Therefore, we modelled human neuroblastoma in T-cell deficient mice to examine whether depletion of monocytes/macrophages from the neuroblastoma microenvironment by blockade of CSF-1R can improve the response to chemotherapy...
April 17, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29663159/evaluation-of-the-effect-of-polyphenol-of-escin-compared-with-ibuprofen-and-dexamethasone-in-synoviocyte-model-for-osteoarthritis-an-in-vitro-study
#5
Hossein Maghsoudi, Jamal Hallajzadeh, Mozhghan Rezaeipour
Osteoarthritis (OA) is a chronic degenerative joint disease with inflammatory component. It is associated with progressive histological alterations and disabling symptoms. Today, drugs such as glucocorticoids (GCs) and nonsteroidal anti-inflammatory drugs (NSIADs) are commonly employed for treatment of osteoarthritis, but have serious and life-threatening side effects. The aim of the current study is to evaluate the effects of escin on cyclooxygenase-2 (COX-2, isoform), inducible nitric oxide synthase (iNOS), interleukin-1β (IL-1β), interleukin-18 (IL-18), tumor necrosis factor-alpha (TNF-α), and nitric oxide (NO) (1), as well as prostaglandin E2 (PGE2) on inflammatory cells, similar osteoarthritis in synoviocytes, and monocytes/macrophages, and to compare it with dexamethasone (DEX) and ibuprofen (IBP)...
April 16, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29662647/characterization-of-increasing-stages-of-invasiveness-identifies-stromal-cancer-cell-crosstalk-in-rat-models-of-mesothelioma
#6
Joëlle S Nader, Jérôme Abadie, Sophie Deshayes, Alice Boissard, Stéphanie Blandin, Christophe Blanquart, Nicolas Boisgerault, Olivier Coqueret, Catherine Guette, Marc Grégoire, Daniel L Pouliquen
Sarcomatoid mesothelioma (SM) is a devastating cancer associated with one of the poorest outcome. Therefore, representative preclinical models reproducing different tumor microenvironments (TME) observed in patients would open up new prospects for the identification of markers and evaluation of innovative therapies. Histological analyses of four original models of rat SM revealed their increasing infiltrative and metastatic potential were associated with differences in Ki67 index, blood-vessel density, and T-lymphocyte and macrophage infiltration...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662645/a-novel-herbal-formula-sge-induces-endoplasmic-reticulum-stress-mediated-cancer-cell-death-and-alleviates-cachexia-symptoms-induced-by-colon-26-adenocarcinoma
#7
Aeyung Kim, Minju Im, Jin Yeul Ma
Cachexia in cancer patients, characterized by marked involuntary weight loss and impaired physical function, is associated with a poor prognosis in response to conventional treatment and with an increase in cancer-related mortality. Prevention of skeletal muscle loss under cancer-induced cachexia via inhibition of pro-cachectic factors, as well as a reduction in tumor mass, has been considered reasonable pharmacological and nutritional interventions to treat cancer patients. In this study, we constructed a novel herbal formula, SGE, which contains Ginseng Radix alba, Atractylodis Rhizoma alba , and Hoelen , examined its anti-cancer and anti-cachexia efficacies...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662489/immunological-approaches-towards-cancer-and-inflammation-a-cross-talk
#8
REVIEW
Xinglong Qu, Ying Tang, Shucheng Hua
The inflammation is the protective response of the body against various harmful stimuli; however, the aberrant and inappropriate activation tends to become harmful. The acute inflammatory response tends to resolved once the offending agent is subside but this acute response becomes chronic in nature when the body is unable to successfully neutralized the noxious stimuli. This chronic inflammatory microenvironment is associated with the release of various pro-inflammatory and oncogenic mediators such as nitric oxide (NO), cytokines [IL-1β, IL-2, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α)], growth factor, and chemokines...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29660463/liposomal-cpg-odn-an-in-vitro-and-in-vivo-study-on-macrophage-subtypes-responses-biodistribution-and-subsequent-therapeutic-efficacy-in-mice-models-of-cancers
#9
Sara Nikoofal-Sahlabadi, Maryam Matbou Riahi, Kayvan Sadri, Ali Badiee, Amin Reza Nikpoor, Mahmoud Reza Jaafari
CpG oligodeoxynucleotides (CpG-ODN), a common immune stimulator and vaccine adjuvant, was reported to switch Tumor Associated Macrophages (TAMs) from M2 to M1 phenotype inducing anti-tumor responses. Liposomes are of the successfully applied carriers for CpG-ODN. The aim of present study was design and preparation of a liposomal formulation containing phosphodiester CpG-ODN, evaluation of its effect on macrophages responses, and subsequent antitumor responses in mice. Liposomal formulations containing phosphodiester CpG-ODN or non-CpG-ODN were prepared and characterized...
April 13, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29660336/microrna-155-inversely-correlates-with-esophageal-cancer-progression-through-regulating-tumor-associated-macrophage-fgf2-expression
#10
Peng Wang, Li-Juan Xu, Jie-Jie Qin, Lu Zhang, Gui-Hua Zhuang
Esophageal cancer (EC) is one of the most common malignancies with high incidence and mortality. Tumor-associated macrophages (TAMs) in the tumor microenvironment have been linked to the accelerated tumor progression. MicroRNAs (miR) are 19-25 nucleotide-long, noncoding RNA molecules, functioning as modulators of gene expression, and mediate a variety of biological functions, including tumor growth. In the present study, the effects and molecular mechanism of miR-155 in TAMs isolated from EC were explored. The expression of miR-155 and fibroblast growth factor-2 (FGF2) in EC tissues and cell lines were analyzed using reverse transcription-quantitative PCR (qRT-PCR) and western blot assays...
April 13, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29657405/immunomodulatory-effects-of-probiotics-and-prilled-fat-supplementation-on-immune-genes-expression-and-lymphocyte-proliferation-of-transition-stage-karan-fries-cows
#11
Meeti Punetha, A K Roy, H M Ajithakumar, Irshad Ahmed Para, Deepanshu Gupta, Mahendra Singh, Jaya Bharati
Background and Aim: Probiotics are the living microorganism which when administered improves the digestion and health of the animal. Saccharomyces cerevisiae (SC) improves the humoral and innate immunity of the animal. Prilled fat is a hydrogenated palm oil triglyceride which has been reported to promote the release of cytokines from macrophages. The aim of the study was to evaluate the immunomodulatory effect of probiotic and prilled fat during transition stage in Karan Fries (KF) cows...
February 2018: Veterinary World
https://www.readbyqxmd.com/read/29656749/tumor-associated-macrophages-support-the-growth-of-fgf9-induced-lung-adenocarcinoma-by-multiple-mechanisms
#12
Ahmed E Hegab, Mari Ozaki, Shizuko Kagawa, Junko Hamamoto, Hiroyuki Yasuda, Katsuhiko Naoki, Kenzo Soejima, Yongjun Yin, Tomonari Kinoshita, Tomonori Yaguchi, Yutaka Kawakami, David M Ornitz, Tomoko Betsuyaku
OBJECTIVES: Tumor-associated macrophages (TAMs) are known to promote tumorigenesis but the mechanism(s) remain elusive. We have developed a mouse model of lung cancer that is initiated through an inducible overexpression of fibroblast growth factor 9 (FGF9) in type-2 pneumocytes. Expression of FGF9 in adult lungs resulted in a rapid development of multiple adenocarcinoma-like tumor nodules, and is associated with an intense immunological reaction. The purpose of this study is to characterize the immune response to the FGF9-induced lung adenocarcinoma and to determine the contribution of TAMs to growth and survival of these tumors...
May 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29656182/co-culture-of-ovarian-cancer-stem-like-cells-with-macrophages-induced-skov3-cells-stemness-via-il-8-stat3-signaling
#13
Yingxia Ning, Yinghong Cui, Xiang Li, Xiaocheng Cao, A Chen, Chang Xu, Jianguo Cao, Xin Luo
Among recent concepts in the cancer biology field, the tumor microenvironment is highly associated with cancer stem cells, and plays a key role in tumor progression. This study aimed to explore the mechanism that the stemness induction of SKOV3 cell line by macrophages derived from THP-1 cells, which was co-cultured with SKOV3-derived ovarian cancer stem-like cells (OCSLCs). Sphere formation, soft agar colony formation, and expression levels of CD133 and CD44 were assessed to reflect OCSLC properties. ELISA was used to evaluate secretion profile changes in macrophages co-cultured with or without SKOV3-derived OCSLCs...
April 12, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29655569/activation-of-the-porcine-alveolar-macrophages-via-toll-like-receptor-4-nf-%C3%AE%C2%BAb-mediated-pathway-provides-a-mechanism-of-resistin-leading-to-inflammation
#14
Bi Li, Jing Fang, Zhicai Zuo, Sirui Yin, Tingting He, Mingxian Yang, Junliang Deng, Liuhong Shen, Xiaoping Ma, Shumin Yu, Ya Wang, Zhihua Ren, Hengmin Cui
Resistin, a previously discovered cysteine-rich adipokine known to regulate glucose metabolism, has been emerged as a mediator in inflammation and immunity. Its level was supposed to be related to the expression of indicators, such as interleukin-1β (IL-1β), IL-6 and tumor necrosis factor-α (TNF-α) in inflammation. Toll-like receptor 4 (TLR4) was reported to be a receptor for resistin in cells, like leukocytes and peripheral blood mononuclear cells (PBMC). However, the pro-inflammatory role of resistin and its intracellular mechanisms in alveolar macrophages have not been thoroughly validated...
April 11, 2018: Cytokine
https://www.readbyqxmd.com/read/29652059/targeted-delivery-of-tungsten-oxide-nanoparticles-for-multifunctional-anti-tumor-therapy-via-macrophages
#15
Bin Zheng, Yang Bai, Hongbin Chen, Huizhuo Pan, Wanying Ji, Xiaoqun Gong, Xiaoli Wu, Hanjie Wang, Jin Chang
Tumor-associated macrophages are highly versatile effector cells that have been used to kill tumor cells. Herein, the macrophages as cell-based biocarriers are used for the targeted delivery of photothermal reagents for promoting the efficiency of killing tumor cells by activating the anti-tumor immune response and photothermal therapy (PTT). In this design, macrophages cause the phagocytosis of tumor cells and activate the anti-tumor immune response by secreting plenty of cytokines. Meanwhile, to improve the tumor-killing effect and track the collaborative therapy system in vivo, a novel nanoplatform based on tungsten oxide (W18O49, WO) nanoparticles and fluorescent dyes loaded in polylactic-co-glycolic acid (PLGA) for PTT has been successfully constructed...
April 13, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29649166/tumor-associated-macrophages-and-mast-cells-positive-to-tryptase-are-correlated-with-angiogenesis-in-surgically-treated-gastric-cancer-patients
#16
Giuseppe Sammarco, Cosmo Damiano Gadaleta, Valeria Zuccalà, Emre Albayrak, Rosa Patruno, Pietro Milella, Rosario Sacco, Michele Ammendola, Girolamo Ranieri
Mast cells and macrophages can play a role in tumor angiogenesis by stimulating microvascular density (MVD). The density of mast cells positive to tryptase (MCDPT), tumor-associated macrophages (TAMs), and MVD were evaluated in a series of 86 gastric cancer (GC) tissue samples from patients who had undergone potential curative surgery. MCDPT, TAMs, and MVD were assessed in tumor tissue (TT) and in adjacent normal tissue (ANT) by immunohistochemistry and image analysis. Each of the above parameters was correlated with the others and, in particular for TT, with important clinico-pathological features...
April 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29644918/assessment-of-clinical-sepsis-associated-biomarkers-in-a-septic-mouse-model
#17
Jin-Ling Li, Ge Li, Xi-Zhong Jing, Yun-Feng Li, Qiu-Ying Ye, Huan-Huan Jia, Shu-Hua Liu, Xue-Jiao Li, Hang Li, Ren Huang, Yu Zhang, Hui Wang
Objective Clinical sepsis-associated biomarkers were utilized in a cecal ligation and puncture (CLP) septic mouse model to provide a reference for investigating pathophysiological mechanisms and evaluating novel therapeutic interventions for sepsis. Methods Sepsis in mice was induced by CLP, and clinical biomarkers were evaluated (survival rate, blood physiological and biochemical indices, cytokines, hepatorenal function parameters, and blood coagulation). Results The mortality rate was >70%. The body temperature, blood pressure, and heart rate decreased within 48 h...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29643986/ajuba-receptor-mediates-the-internalization-of-tumor-secreted-grp78-into-macrophages-through-different-endocytosis-pathways
#18
Xiaoqin La, Lichao Zhang, Hanqing Li, Zhuoyu Li, Guisheng Song, Peng Yang, Yufei Yang
Glucose-regulated protein 78 (GRP78), an ER chaperone, is overexpressed in cancer cells. Solid tumor cells can secrete GRP78 that can promote tumor angiogenesis, differentiation of bone marrow-derived mesenchymal stem cells, tumor cell proliferation and polarization of tumor-associated macrophages. However, the mechanism by which GRP78 functions as a tumor promoter either by staying on the membrane to stimulate intracellular signals or directly entering into cytosolic remains unknown. Here, we reported that an endotoxin-free His-GRP78 protein was purified in vitro that simulates original secreted GRP78...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643359/il23-and-tgf-%C3%A3-diminish-macrophage-associated-metastasis-in-pancreatic-carcinoma
#19
S Mazher Hussain, Leighton F Reed, Bradley A Krasnick, Gustavo Miranda-Carboni, Ryan C Fields, Ye Bi, Abul Elahi, Abidemi Ajidahun, Paxton V Dickson, Jeremiah L Deneve, William G Hawkins, David Shibata, Evan S Glazer
The precise role of tumor associated macrophages remains unclear in pancreatic ductal adenocarcinoma (PDAC) while TGF-ß has an unclear role in metastases formation. In order to understand the role of IL23, an interleukin associated with macrophage polarization, we investigated IL23 in the context of TGF-ß expression in PDAC. We hypothesized that IL23 expression is associated with metastatic development and survival in PDAC. We investigated IL23 and TGF-ß protein expression on resected PDAC patient tumor sections who were divided into short-term (<12 months) survivors and long-term (>30 months) survivors...
April 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29643229/t-cell-induced-csf1-promotes-melanoma-resistance-to-pd1-blockade
#20
Natalie J Neubert, Martina Schmittnaegel, Natacha Bordry, Sina Nassiri, Noémie Wald, Christophe Martignier, Laure Tillé, Krisztian Homicsko, William Damsky, Hélène Maby-El Hajjami, Irina Klaman, Esther Danenberg, Kalliopi Ioannidou, Lana Kandalaft, George Coukos, Sabine Hoves, Carola H Ries, Silvia A Fuertes Marraco, Periklis G Foukas, Michele De Palma, Daniel E Speiser
Colony-stimulating factor 1 (CSF1) is a key regulator of monocyte/macrophage differentiation that sustains the protumorigenic functions of tumor-associated macrophages (TAMs). We show that CSF1 is expressed in human melanoma, and patients with metastatic melanoma have increased CSF1 in blood compared to healthy subjects. In tumors, CSF1 expression correlated with the abundance of CD8+ T cells and CD163+ TAMs. Human melanoma cell lines consistently produced CSF1 after exposure to melanoma-specific CD8+ T cells or T cell-derived cytokines in vitro, reflecting a broadly conserved mechanism of CSF1 induction by activated CD8+ T cells...
April 11, 2018: Science Translational Medicine
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