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https://www.readbyqxmd.com/read/29149648/dried-plum-alleviates-symptoms-of-inflammatory-arthritis-in-tnf-transgenic-mice
#1
Faryal Mirza, Joseph Lorenzo, Hicham Drissi, Francis Y Lee, Do Y Soung
Dried plum (DP), a rich source of polyphenols has been shown to have bone-preserving properties in both animal models of osteoporosis and postmenopausal women. We evaluated if DP alleviated the destruction of joints in transgenic mice (TG) that overexpress human tumor necrosis factor (TNF), a genetic model of rheumatoid arthritis (RA). A four-week treatment of 20% DP diet in TG slowed the onset of arthritis and reduced bone erosions in the joints compared to TG on a regular diet. This was associated with fewer tartrate-resistant acid phosphatase (TRAP) positive cells, suggesting decreased osteoclastogenesis...
October 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29147604/tap1-down-regulation-elicits-immune-escape-and-poor-prognosis-in-colorectal-cancer
#2
Agnes Ling, Anna Löfgren-Burström, Pär Larsson, Xingru Li, Maria L Wikberg, Åke Öberg, Roger Stenling, Sofia Edin, Richard Palmqvist
The anti-tumor immune response has been shown to be of great prognostic importance in colorectal cancer (CRC) and so has the tumors ability for immune evasion. Our aim of this study was to investigate tumor factors that influence immunity. We used a gene expression array to search for potential mechanisms of tumor immune escape. One candidate gene identified was TAP1, involved in antigen presentation by MHC class I. TAP1 protein expression was evaluated by immunohistochemistry in 436 CRC patients of the Colorectal Cancer in Umeå Study cohort...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147603/age-estrogen-and-immune-response-in-breast-adenocarcinoma-and-adjacent-normal-tissue
#3
David A Quigley, Andliena Tahiri, Torben Lüders, Margit H Riis, Allan Balmain, Anne-Lise Børresen-Dale, Ida Bukholm, Vessela Kristensen
Chronic inflammation promotes breast tumor growth and invasion by accelerating angiogenesis and tissue remodeling in the tumor microenvironment. There is a complex relationship between inflammation and estrogen, which drives the growth of 70 percent of breast tumors. While low levels of estrogen exposure stimulate macrophages and other inflammatory cell populations, very high levels are immune suppressive. Breast tumor incidence is increased by obesity and age, which interact to influence inflammatory cell populations in normal breast tissue...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147443/4-nitroquinoline-1-oxide-induced-tongue-and-esophagus-carcinogenesis-in-obese-and-diabetic-tsod-mice
#4
Takuji Tanaka, Kunihiro Kawabata, Shigeyuki Sugie
Background: Obesity and diabetes mellitus are associated with lifestyle-related carcinogenesis. They are also risk factors of esophageal adenocarcinoma, but there are only a few reports on association between obesity/diabetes and development of squamous cell carcinoma in the oral cavity and esophagus. In this study, we therefore aimed to determine whether obesity and diabetes affect oral and esophageal carcinogenesis using model mice of obesity and diabetes, the Tsumura Suzuki obese diabetes (TSOD) and Tsumura Suzuki non-obesity (TSNO) control mice, which were treated with 4-nitroquinoline 1-oxide (4-NQO) to produce tongue and esophageal carcinomas...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29145790/innate-immunity-in-cardiac-myxomas-and-its-pathological-and-clinical-correlations
#5
Anna Di Vito, Gianluca Santise, Chiara Mignogna, Eusebio Chiefari, Gabriella Cardillo, Ivan Presta, Franco Arturi, Natalia Malara, Francesco Brunetti, Annalidia Donato, Domenico Maisano, Stefania Leonetti, Daniele Maselli, Tullio Barni, Giuseppe Donato
Cardiac myxomas are the most common benign cardiac tumor. We investigated the immunohistochemical properties of 11 surgically excised cardiac myxomas, in order to analyze the correlation between macrophages and mast cell populations and clinical parameters. CD68(+)/CD163(-)/iNOS(-) (M0) cells represent the most abundant macrophage phenotype; however, CD68(+)/CD163(+) cells (M2) were also frequent. CD68(+)/iNOS(+) (M1) elements were rare. Mast cells, defined as a population of c-kit (CD117)(+) and/or tryptase(+) cells were also detected...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/29144988/di-2-ethylhexyl-phthalate-enhances-melanoma-tumor-growth-via-differential-effect-on-m1-and-m2-polarized-macrophages-in-mouse-model
#6
Jae-Wook Lee, Sojin Park, Hae-Kyoung Han, Myung Chan Gye, Eun-Yi Moon
Phthalates are widely used as plasticizers that influence sexual and reproductive development. Here, we investigated whether di-(2-ethylhexyl) phthalate (DEHP) affects macrophage polarization that are associated with tumor initiation and progression. No changes were observed in LPS- or ConA-stimulated in vitro spleen B or T cell proliferation for 48 h, respectively. In contrast, macrophage functions were inhibited in response to DEHP for 12 h as judged by LPS-induced H2O2 and NO production and zymosan A-mediated phagocytosis...
November 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29143796/angelica-sinensis-polysaccharides-ameliorate-stress-induced-premature-senescence-of-hematopoietic-cell-via-protecting-bone-marrow-stromal-cells-from-oxidative-injuries-caused-by-5-fluorouracil
#7
Hanxianzhi Xiao, Lirong Xiong, Xiaoying Song, Pengwei Jin, Linbo Chen, Xiongbin Chen, Hui Yao, Yaping Wang, Lu Wang
Myelosuppression is the most common complication of chemotherapy. Decline of self-renewal capacity and stress-induced premature senescence (SIPS) of hematopoietic stem cells (HSCs) induced by chemotherapeutic agents may be the cause of long-term myelosuppression after chemotherapy. Whether the mechanism of SIPS of hematopoietic cells relates to chemotherapeutic injury occurred in hematopoietic microenvironment (HM) is still not well elucidated. This study explored the protective effect of Angelica sinensis polysaccharide (ASP), an acetone extract polysaccharide found as the major effective ingredients of a traditional Chinese medicinal herb named Chinese Angelica (Dong Quai), on oxidative damage of homo sapiens bone marrow/stroma cell line (HS-5) caused by 5-fluorouracil (5-FU), and the effect of ASP relieving oxidative stress in HM on SIPS of hematopoietic cells...
October 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29142311/a-standardized-herbal-extract-mitigates-tumor-inflammation-and-augments-chemotherapy-effect-of-docetaxel-in-prostate-cancer
#8
Chin-Hsien Tsai, Sheue-Fen Tzeng, Shih-Chuan Hsieh, Yu-Chih Yang, Yi-Wen Hsiao, Mong-Hsun Tsai, Pei-Wen Hsiao
Activation of the NFκB pathway is often associated with advanced cancer and has thus been regarded as a rational therapeutic target. Wedelia chinensis is rich in luteolin, apigenin, and wedelolactone that act synergistically to suppress androgen receptor activity in prostate cancer. Interestingly, our evaluation of a standardized Wedelia chinensis herbal extract (WCE) concluded its efficacy on hormone-refractory prostate cancer through systemic mechanisms. Oral administration of WCE significantly attenuated tumor growth and metastasis in orthotopic PC-3 and DU145 xenografts...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141914/proteotranscriptomics-reveal-signaling-networks-in-the-ovarian-cancer-microenvironment
#9
Thomas Worzfeld, Florian Finkernagel, Silke Reinartz, Anne Konzer, Till Adhikary, Andrea Nist, Thorsten Stiewe, Uwe Wagner, Mario Looso, Johannes Graumann, Rolf Müller
Ovarian cancer is characterized by early transcoelomic metastatic spread via the peritoneal fluid, where tumor cell spheroids (TU), tumor-associated T cells (TAT), and macrophages (TAM) create a unique microenvironment promoting cancer progression, chemoresistance and immuno-suppression. However, the underlying signaling mechanisms remain largely obscure.  To chart these signaling networks, we performed comprehensive proteomic and transcriptomic analyses of TU, TAT and TAM from ascites of ovarian cancer patients...
November 15, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29141888/lung-cancer-associated-pulmonary-hypertension-role-of-microenvironmental-inflammation-based-on-tumor-cell-immune-cell-cross-talk
#10
Soni Savai Pullamsetti, Baktybek Kojonazarov, Samantha Storn, Henning Gall, Ylia Salazar, Janine Wolf, Andreas Weigert, Nefertiti El-Nikhely, Hossein Ardeschir Ghofrani, Gabriele A Krombach, Ludger Fink, Stefan Gattenlöhner, Ulf R Rapp, Ralph Theo Schermuly, Friedrich Grimminger, Werner Seeger, Rajkumar Savai
Dyspnea is a frequent, devastating, and poorly understood symptom of advanced lung cancer. In our cohort, among 519 patients who underwent a computed tomography scan for the diagnosis of lung cancer, 250 had a mean pulmonary artery diameter of >28 mm, indicating pulmonary hypertension (PH). In human lung cancer tissue, we consistently observed increased vascular remodeling and perivascular inflammatory cell accumulation (macrophages/lymphocytes). Vascular remodeling, PH, and perivascular inflammatory cell accumulation were mimicked in three mouse models of lung cancer (LLC1, KRas(LA2) , and cRaf-BxB)...
November 15, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29141219/preventive-inhibition-of-liver-tumorigenesis-by-systemic-activation-of-innate-immune-functions
#11
Jin Lee, Rui Liao, Gaowei Wang, Bi-Huei Yang, Xiaolin Luo, Nissi M Varki, Shuang-Jian Qiu, Bing Ren, Wenxian Fu, Gen-Sheng Feng
Liver cancer has become the second most deadly malignant disease, with no efficient targeted or immune therapeutic agents available yet. While dissecting the roles of cytoplasmic signaling molecules in hepatocarcinogenesis using an inducible mouse gene targeting system, Mx1-cre, we identified a potent liver tumor-inhibitory effect of synthetic double-stranded RNA (dsRNA), polyinosinic-polycytidylic acid (pIC), an inducer of the Mx1-cre system. Injection of pIC at the pre-cancer stage robustly suppressed liver tumorigenesis either induced by chemical carcinogens or by Pten loss and associated hepatosteatosis...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29141020/genomic-analysis-of-atypical-fibroxanthoma
#12
Kevin Lai, Catherine A Harwood, Karin J Purdie, Charlotte M Proby, Irene M Leigh, Namita Ravi, Thaddeus W Mully, Lionel Brooks, Priscilla M Sandoval, Michael D Rosenblum, Sarah T Arron
Atypical fibroxanthoma (AFX), is a rare type of skin cancer affecting older individuals with sun damaged skin. Since there is limited genomic information about AFX, our study seeks to improve the understanding of AFX through whole-exome and RNA sequencing of 8 matched tumor-normal samples. AFX is a highly mutated malignancy with recurrent mutations in a number of genes, including COL11A1, ERBB4, CSMD3, and FAT1. The majority of mutations identified were UV signature (C>T in dipyrimidines). We observed deletion of chromosomal segments on chr9p and chr13q, including tumor suppressor genes such as KANK1 and CDKN2A, but no gene fusions were found...
2017: PloS One
https://www.readbyqxmd.com/read/29138800/broadleaf-mahonia-attenuates-granulomatous-lobular-mastitis%C3%A2-associated-inflammation-by-inhibiting-ccl%C3%A2-5-expression-in-macrophages
#13
Zhiyu Wang, Neng Wang, Xiaoyan Liu, Qi Wang, Biao Xu, Pengxi Liu, Huayu Zhu, Jianping Chen, Honglin Situ, Yi Lin
Granulomatous lobular mastitis (GLM) is a type of chronic mammary inflammation with unclear etiology. Currently systematic corticosteroids and methitrexate are considered as the main drugs for GLM treatment, but a high toxicity and risk of recurrence greatly limit their application. It is therefore an urgent requirement that safe and efficient natural drugs are found to improve the GLM prognosis. Broadleaf Mahonia (BM) is a traditional Chinese herb that is believed to have anti‑inflammatory properties according to ancient records of traditional Chinese medicine...
November 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29138761/a-metastasis-biomarker-metasite-breast%C3%A2-score-is-associated-with-distant-recurrence-in-hormone-receptor-positive-her2-negative-early-stage-breast-cancer
#14
Joseph A Sparano, Robert Gray, Maja H Oktay, David Entenberg, Thomas Rohan, Xiaonan Xue, Michael Donovan, Michael Peterson, Anthony Shuber, Douglas A Hamilton, Timothy D'Alfonso, Lori J Goldstein, Frank Gertler, Nancy E Davidson, John Condeelis, Joan Jones
Metastasis is the primary cause of death in early-stage breast cancer. We evaluated the association between a metastasis biomarker, which we call "Tumor Microenviroment of Metastasis" (TMEM), and risk of recurrence. TMEM are microanatomic structures where invasive tumor cells are in direct contact with endothelial cells and macrophages, and which serve as intravasation sites for tumor cells into the circulation. We evaluated primary tumors from 600 patients with Stage I-III breast cancer treated with adjuvant chemotherapy in trial E2197 (NCT00003519), plus endocrine therapy for hormone receptor (HR)+ disease...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29138464/bone-regeneration-is-associated-with-the-concentration-of-tumour-necrosis-factor-%C3%AE-induced-by-sericin-released-from-a-silk-mat
#15
You-Young Jo, HaeYong Kweon, Dae-Won Kim, Kyunghwa Baek, Min-Keun Kim, Seong-Gon Kim, Weon-Sik Chae, Je-Yong Choi, Horatiu Rotaru
To understand the osteogenic effect of the middle layer of the silk cocoon, sericin was examined for its cellular effects associated with tumor necrosis factor-α (TNF-α) signaling in this study. The fragmented sericin proteins in the silk mat were evaluated for the TNF-α expression level in murine macrophages. The concentration of protein released from silk mats was higher in the outermost and the innermost layers than in the middle layers, and the protein released from the silk mat was identified as sericin...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137886/diesel-exhaust-inhalation-exposure-induces-pulmonary-arterial-hypertension-in-mice
#16
Jing Liu, Xiaoqing Ye, Dapeng Ji, Xiaofei Zhou, Cong Qiu, Weiping Liu, Luyang Yu
Diesel exhaust (DE) is one of the main sources of urban air pollution. An increasing number of evidence showed the association of air pollution with cardiovascular diseases. Pulmonary arterial hypertension (PAH) is one of the most disastrous vascular diseases, which results in right ventricular failure and death. However, the relationship of DE inhalation exposure with PAH is still unknown. In this study, male adult mice were exposed by inhalation to filtered ambient air (negative control), 10% O2 hypoxia (PAH-phenotype positive control), 350 μg/m(3) particulate matter whole DE, or the combination of DE and hypoxic condition...
November 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29137420/anti-angiogenic-and-anti-tumor-effects-of-metronomic-use-of-novel-liposomal-zoledronic-acid-depletes-tumor-associated-macrophages-in-triple-negative-breast-cancer
#17
Xin-Jun Cai, Zeng Wang, Jia-Wei Cao, Jian-Jun Ni, Ying-Ying Xu, Jun Yao, Hong Xu, Fang Liu, Gao-Yi Yang
Zoledronic acid (ZOL) has been used as an adjuvant therapy for breast cancer. It is suggested that ZOL might be associated with inhibition of macrophages, which in turn reduces tumor growth, metastasis and tumor angiogenesis. Moreover, metronomic therapy can inhibit tumor angiogenesis and tumor immune cells. Previously we developed ZOL based cationic liposomes that allowed a higher intratumor delivery of drug compared with free ZOL in vivo. Therefore, in this study, Asn-Gly-Arg (NGR) and PEG2000 were used as ligands to modify the surface of liposomes (NGR-PEG-LP-ZOL) in metronomic therapy to clear the tumor-associated macrophages (TAMs) and inhibit the formation of tumor angiogenesis, achieving the purpose of anti-tumor growth...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137340/prognostic-role-of-tumour-associated-macrophages-and-macrophage-scavenger-receptor-1-in-prostate-cancer-a-systematic-review-and-meta-analysis
#18
Jian Cao, Jun Liu, Ran Xu, Xuan Zhu, Xiaokun Zhao, Bin-Zhi Qian
Recent studies suggested that the tumour associated macrophages may be associated with prostate cancer outcome. A meta-analysis was performed to evaluate the prognostic value of tumor associated macrophages and macrophage scavenger receptor 1, marker for a subset of macrophages, by pooled hazard ratio and 95% confidence intervals from qualified studies following a systemic search. The results indicate that higher infiltration of tumor associated macrophages predicts poor overall survival (HR=1.57, 95%CI: 1...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137299/tumor-expressed-immune-checkpoint-b7x-promotes-cancer-progression-and-antigen-specific-cd8-t-cell-exhaustion-and-suppressive-innate-immune-cells
#19
Kim C Ohaegbulam, Weifeng Liu, Hyungjun Jeon, Steven C Almo, Xingxing Zang
B7x (B7-H4 or B7S1) is a coinhibitory member of the B7 immune checkpoint ligand family that regulates immune function following ligation with its unknown cognate receptors. B7x has limited expression on normal tissues, but is up-regulated on solid human tumors to inhibit anti-tumor immunity and associates with poor clinical prognosis. We assessed the contribution of cytokine stimuli to induce surface B7x expression on cancer cells and the role of tumor-expressed B7x in a murine pulmonary metastasis model, and finally evaluated the potential interaction between B7x and Neuropilin-1, a suggested potential cognate receptor...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137267/tumacrophage-macrophages-transformed-into-tumor-stem-like-cells-by-virulent-genetic-material-from-tumor-cells
#20
Yizhuang Zhang, Na Zhou, Xiuyan Yu, Xuehui Zhang, Shanxin Li, Zhen Lei, Ruobi Hu, Hui Li, Yiqing Mao, Xi Wang, Jinshu Zhang, Yuan Li, Hongyan Guo, David M Irwin, Gang Niu, Huanran Tan
Tumor-associated macrophages are regarded as tumor-enhancers as they have key roles in the subversion of adaptive immunity and in inflammatory circuits that promote tumor progression. Here, we show that cancer cells can subvert macrophages yielding cells that have gained pro-tumor functions. When macrophages isolated from mice or humans are co-cultured with dead cancer cell line cells, induced to undergo apoptosis to mimic chemotherapy, up-regulation of pro-tumor gene expression was identified. Phagocytosis of apoptotic cancer cells by macrophages resulted in their transformation into tumor stem (initiating)-like cells, as indicated by the expression of epithelial markers (e...
October 10, 2017: Oncotarget
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