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Inflammation and cancer

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https://www.readbyqxmd.com/read/29352735/s-nitrosated-poly-propylene-sulfide-nanoparticles-for-enhanced-nitric-oxide-delivery-to-lymphatic-tissues
#1
Alex Schudel, Lauren F Sestito, Susan N Thomas
Nitric oxide (NO) is a therapeutic implicated for the treatment of diseases affecting lymphatic tissues, which range from infectious and cardiovascular diseases to cancer. Existing technologies available for NO therapy, however, provide poor bioactivity within lymphatic tissues. In this work, we address this technology gap with a NO encapsulation and delivery strategy leveraging the formation of S-nitrosothiols on lymphatic-targeting Pluronic-stabilized, poly(propylene sulfide)-core nanoparticles (SNO-NP). We evaluated in vivo the lymphatic versus systemic delivery of NO resulting from intradermal administration of SNO-NP benchmarked against a commonly used, commercially available small molecule S-nitrosothiol NO donor, examined signs of toxicity systemically as well as localized to the site of injection, and investigated SNO effects on lymphatic transport and NP uptake by LN-resident cells...
January 20, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29352129/molecular-characterization-of-the-grape-seeds-extract-s-effect-against-chemically-induced-liver-cancer-in-vivo-and-in-vitro-analyses
#2
Alaaeldin Ahmed Hamza, Gehan Hussein Heeba, Hanan Mohamed Elwy, Chandraprabha Murali, Raafat El-Awady, Amr Amin
The purpose of this study was to investigate the anti-cancer property of grape seed extract (GSE) during early stages of developing liver cancer using a two-stage carcinogenic model combining diethylnitrosamine (DEN) and 2-Acetyl Aminofluorene (2-AAF). Administration of GSE at doses 25, 50 and 100 mg/kg per day started at the beginning of promotion periods and continued for 14 weeks. GSE dramatically inhibited pre-neoplastic foci formation as well as significantly decreased the number and the area of placental glutathione-S-transferase in livers of DEN-2AAF-treated rats by approximately 4 & 10 fold deductions, respectively...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351902/targeting-the-sphk1-s1p-s1pr1-axis-that-links-obesity-chronic-inflammation-and-breast-cancer-metastasis
#3
Masayuki Nagahashi, Akimitsu Yamada, Eriko Katsuta, Tomoyoshi Aoyagi, Wei-Ching Huang, Krista P Terracina, Nitai C Hait, Jeremy C Allegood, Junko Tsuchida, Kizuki Yuza, Masato Nakajima, Manabu Abe, Kenji Sakimura, Sheldon Milstien, Toshifumi Wakai, Sarah Spiegel, Kazuaki Takabe
Although obesity with associated inflammation is now recognized as a risk factor for breast cancer and distant metastases, the functional basis for these connections remain poorly understood. Here we show that in breast cancer patients and in animal breast cancer models, obesity is a sufficient cause for increased expression of the bioactive sphingolipid mediator sphingosine-1-phosphate (S1P) which mediates cancer pathogenesis. A high fat diet was sufficient to upregulate expression of sphingosine kinase 1 (SphK1), the enzyme that produces S1P, along with its receptor S1PR1 in syngeneic and spontaneous breast tumors...
January 19, 2018: Cancer Research
https://www.readbyqxmd.com/read/29351623/development-of-sugar-chain-binding-single-chain-variable-fragment-antibody-to-adult-t-cell-leukemia-cells-using-glyco-nanotechnology-and-phage-display-method
#4
Kaname Muchima, Taro Todaka, Hiroyuki Shinchi, Ayaka Sato, Arisa Tazoe, Rikiya Aramaki, Yuhei Kakitsubata, Risa Yokoyama, Naomichi Arima, Masanori Baba, Masahiro Wakao, Yuji Ito, Yasuo Suda
Adult T-cell leukemia (ATL) is an intractable blood cancer caused by the infection of human T-cell leukemia virus type-1, and effective medical treatment is required. It is known that the structure and expression levels of cell surface sugar chains vary depending on cell states such as inflammation and cancer. Thus, it is expected that the antibody specific for ATL cell surface sugar chain would be an effective diagnostic tool and a strong candidate for the development of an anti-ATL drug. Here, we developed a stable sugar chain binding single chain variable fragment antibody (scFv) that can bind to ATL cells using a fiber type Sugar Chip and phage display method...
January 17, 2018: Journal of Biochemistry
https://www.readbyqxmd.com/read/29351464/vitamin-d-and-regulation-of-vascular-cell-function
#5
Nasim Jamali, Christine M Sorenson, Nader Sheibani
Vitamin D deficiency is linked to pathogenesis of many diseases including cardiovascular, cancer, and various eye diseases. In recent years, important roles for vitamin D in regulation of immune function, inflammation, angiogenesis, and aging have been demonstrated. Thus, vitamin D and its analogs have been evaluated for treatment of various types of cancer and chronic diseases. We previously showed that the active form of vitamin D (1, 25(OH)2D3) is a potent inhibitor of angiogenesis. This activity is consistent with the important role proposed for vitamin D and its analogs in the mitigation of tumor growth through inhibition of angiogenesis...
December 22, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29350913/environmentally-triggerable-retinoic-acid-inducible-gene-i-agonists-using-synthetic-polymer-overhangs
#6
Christian R Palmer, Max E Jacobson, Olga Fedorova, Anna M Pyle, John T Wilson
Retinoic acid-inducible gene I (RIG-I) is a cytosolic pattern recognition receptor (PRR) that potently activates antiviral innate immunity upon recognition of 5' triphosphorylated double-stranded RNA (pppRNA). Accordingly, RNA ligands of the RIG-I pathway have recently emerged as promising antiviral agents, vaccine adjuvants, and cancer immunotherapeutics. However, RIG-I is expressed constitutively in virtually all cell types, and therefore administration of RIG-I agonists causes risk for systemic inflammation and possible dose-limiting toxicities...
January 19, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29350049/targeted-and-off-target-bystander-and-abscopal-effects-of-radiation-therapy-redox-mechanisms-and-risk-benefit-analysis
#7
Jean-Pierre Pouget, Alexandros G Georgakilas, Jean-Luc Ravanat
Radiation therapy (from external beams to unsealed and sealed radionuclide sources) takes advantage of the detrimental effects of the clustered production of radicals and reactive oxygen species (ROS). Research has mainly focused on the interaction of radiation with water, which is the major constituent of living beings, and with nuclear DNA, which contains the genetic information. This led to the so-called "target" theory according to which cells have to be hit by ionizing particles to elicit an important biological response, including cell death...
January 19, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29349096/safety-and-efficacy-of-aav-retrograde-pancreatic-ductal-gene-delivery-in-normal-and-pancreatic-cancer-mice
#8
Kayla A Quirin, Jason J Kwon, Arafat Alioufi, Tricia Factora, Constance J Temm, Max Jacobsen, George E Sandusky, Kim Shontz, Louis G Chicoine, K Reed Clark, Joshua T Mendell, Murray Korc, Janaiah Kota
Recombinant adeno-associated virus (rAAV)-mediated gene delivery shows promise to transduce the pancreas, but safety/efficacy in a neoplastic context is not well established. To identify an ideal AAV serotype, route, and vector dose and assess safety, we have investigated the use of three AAV serotypes (6, 8, and 9) expressing GFP in a self-complementary (sc) AAV vector under an EF1α promoter (scAAV.GFP) following systemic or retrograde pancreatic intraductal delivery. Systemic delivery of scAAV9.GFP transduced the pancreas with high efficiency, but gene expression did not exceed >45% with the highest dose, 5 × 1012 viral genomes (vg)...
March 16, 2018: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/29348903/the-systemic-inflammation-based-glasgow-prognostic-score-as-a-powerful-prognostic-factor-in-patients-with-upper-tract-urothelial-carcinoma
#9
Teruo Inamoto, Hideyasu Matsuyama, Shigeru Sakano, Naokazu Ibuki, Kiyoshi Takahara, Kazumasa Komura, Tomoaki Takai, Takuya Tsujino, Yuki Yoshikawa, Koichiro Minami, Kazuhiro Nagao, Ryo Inoue, Haruhito Azuma
Introduction and Objective: The combination of C-reactive protein and albumin, the Glasgow Prognostic Score (GPS), had independent prognostic value in patients with varying cancers, except for upper tract urothelial carcinoma (UTUC). The aim of this study was to describe the relationship between GPS and survival in patients with UTUC after adjustment for other prognostic factors. Materials and Methods: We queried 2 UTUC databases. Retrospective clinical series on patients with localized UTUC managed by nephroureterectomy with bladder cuff, for whom data from the Yamaguchi Uro-Oncology Group and Osaka Medical College registry, including age, presence of bladder cancer, pT stage, lymphovascular invasion, C-reactive protein (CRP) and albumin, were analyzed...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348847/distinct-roles-of-traf6-and-tak1-in-the-regulation-of-adipocyte-survival-thermogenesis-program-and-high-fat-diet-induced-obesity
#10
Yann S Gallot, Joseph D McMillan, Guangyan Xiong, Kyle R Bohnert, Alex R Straughn, Bradford G Hill, Ashok Kumar
Chronic low-grade inflammation, adipocyte hypertrophy, and glucose intolerance are common features of obesity and a risk factor for cancer. Tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is an adaptor protein that also possesses a non-conventional E3 ubiquitin ligase activity. In response to receptor-mediated events, TRAF6 activates transforming growth factor-activated kinase 1 (TAK1), which leads to activation of the MAPK and nuclear factor-kappa B (NF-κB) signaling pathways. However, the roles of TRAF6 and TAK1 in the regulation of adipocyte function remain less understood...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348829/roflumilast-restores-camp-pka-creb-signaling-axis-for-ftmt-mediated-tumor-inhibition-of-ovarian-cancer
#11
Shipeng Gong, Yongning Chen, Fanliang Meng, Yadi Zhang, Huan Wu, Fei Wu
The abrogation of cAMP generation by overexpression of PDE isoforms promotes the inflammatory pathology, and the PDE inhibitors have showed the potential anti-inflammation effects in clinical. However, the function of PDE inhibitors in cancer treatment remains unclear. We here investigated the role of PDE4 inhibitor Roflumilast in the treatment of ovarian cancer. We found that Roflumilast could effectively inhibit the proliferation, and induce apoptosis and cell cycle arrest in two ovarian cancer cell lines OVCAR3 and SKOV3...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348630/expression-of-inflammasome-proteins-and-inflammasome-activation-occurs-in-human-but-not-in-murine-keratinocytes
#12
Jennifer Sand, Eric Haertel, Thomas Biedermann, Emmanuel Contassot, Ernst Reichmann, Lars E French, Sabine Werner, Hans-Dietmar Beer
Inflammasomes are multimeric protein complexes that assemble upon sensing of a variety of stress factors. Their formation results in caspase-1-mediated activation and secretion of the pro-inflammatory cytokines pro-interleukin(IL)-1β and -18, which induce an inflammatory response. Inflammation is supported by a lytic form of cell death, termed pyroptosis. Innate immune cells, such as macrophages or dendritic cells, express and activate inflammasomes. However, it has also been demonstrated that human primary keratinocytes activate different types of inflammasomes in vitro, for example, upon UVB irradiation or viral infection...
January 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29348572/areca-nut-extracts-mobilize-calcium-and-release-pro-inflammatory-cytokines-from-various-immune-cells
#13
Malika Faouzi, Ram P Neupane, Jian Yang, Philip Williams, Reinhold Penner
Betel nut consumption has significant implications for the public health globally, as the wide-spread habit of Areca chewing throughout Asia and the Pacific is associated with a high prevalence of oral carcinoma and other diseases. Despite a clear causal association of betel nut chewing and oral mucosal diseases, the biological mechanisms that link Areca nut-contained molecules, inflammation and cancer remain underexplored. In this study we show that the whole Areca nut extract (ANE) is capable of mobilizing Ca2+ in various immune cell lines...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348549/preoperative-anemia-in-colorectal-cancer-relationships-with-tumor-characteristics-systemic-inflammation-and-survival
#14
Juha P Väyrynen, Anne Tuomisto, Sara A Väyrynen, Kai Klintrup, Toni Karhu, Jyrki Mäkelä, Karl-Heinz Herzig, Tuomo J Karttunen, Markus J Mäkinen
Anemia is common in colorectal cancer (CRC) but its relationships with tumor characteristics, systemic inflammation, and survival have not been well characterized. In this study, blood hemoglobin levels and erythrocyte mean corpuscular volume (MCV) levels were measured in two independent cohorts of 148 CRC patients and 208 CRC patients, and their correlation with patient and tumor characteristics, systemic inflammatory markers (modified Glasgow Prognostic Score: mGPS; serum levels of thirteen cytokines, C-reactive protein, albumin), and survival were analyzed...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346484/association-of-dietary-inflammatory-potential-with-colorectal-cancer-risk-in-men-and-women
#15
Fred K Tabung, Li Liu, Weike Wang, Teresa T Fung, Kana Wu, Stephanie A Smith-Warner, Yin Cao, Frank B Hu, Shuji Ogino, Charles S Fuchs, Edward L Giovannucci
Importance: Inflammation is important in colorectal cancer development. Diet modulates inflammation and may thus be a crucial modifiable factor in colorectal cancer prevention. Objective: To examine whether proinflammatory diets are associated with increased colorectal cancer risk by using an empirical dietary inflammatory pattern (EDIP) score based on a weighted sum of 18 food groups that characterizes dietary inflammatory potential based on circulating levels of inflammation biomarkers...
January 18, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29346246/comparison-of-diagnostic-potential-of-narrow-band-imaging-bronchoscopy-over-white-light-bronchoscopy-in-lung-cancer
#16
Manish Advani, Gopal Purohit, Sunil Vyas, Jyoti Kumari
BACKGROUND: Worldwide, lung cancer is the largest contributor to new cancer diagnoses and to death from cancer. Narrow band imaging (NBI) is a novel bronchoscopic technique which enables detailed examination of submucosal microcapillary grid and showed great potential in early detection of malignant lesions of the bronchial mucosa. The aim of this study was to compare diagnostic potential of NBI bronchoscopy over white light (WL) bronchoscopy in lung cancer. METHODS: We enrolled 187 patients having clinical and radiologic findings highly suspicious of lung cancer...
January 16, 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29346216/obesity-and-pancreatic-cancer-overview-of-epidemiology-and-potential-prevention-by-weight-loss
#17
Mu Xu, Xiaoman Jung, O Joe Hines, Guido Eibl, Yijun Chen
Currently, there are no effective preventive strategies for pancreatic cancer. Obesity has been increasingly recognized as a strong but modifiable risk factor of pancreatic cancer. In this article, we aim to review the literature regarding weight loss on prevention of pancreatic cancer. Epidemiological and laboratory studies have shown that obesity is associated with increased incidence of pancreatic cancer and potentially worse cancer outcome. Whereas the underlying pathomechanisms remain unclear, chronic inflammation, insulin resistance, and altered intestinal microbiota are all implicated in the carcinogenic effect of obesity...
February 2018: Pancreas
https://www.readbyqxmd.com/read/29345574/role-of-cd73-in-disease-promising-prognostic-indicator-and-therapeutic-target
#18
Jiayin Yang, Xiaohong Liao, Jerry Yu, Ping Zhou
CD73, also known as ecto-5'-nucleotidase (eN, NT5E, EC3.13.5), is the rate-limiting enzyme for adenosine generation and is expressed on multiple cells. Its expression is significantly influenced by hypoxia and inflammatory factors. During inflammation, CD73 protects endothelial barrier function and inhibits leukocyte trafficking. CD73 also promotes M2 macrophages (anti-inflammatory phenotype). In addition, CD73 is expressed on Treg cells and mediates immune suppression through adenosine. CD73 serves as an essential regulator for the immunity and inflammation...
January 16, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29345442/lung-uptake-of-fluorine-18-fluoroethyl-choline-pet-ct-in-patients-with-prostate-cancer
#19
Daniele A Pizzuto, Salvatore Annunziata, Francesco P Ieria, Carmelo Caldarella, Maria A Isgrò, Valerio Lanni, Gaia Bencivenga, Vittoria Rufini, Alessandro Giordano
BACKGROUND: Metastatic spreading to the lungs is a negative prognostic factor in patients with prostate cancer (PC). Aim of our study was to assess the prevalence of lung PC metastases in patients with fluorine-18 fluoroethyl-choline (F-18-FECh) PET-CT positive lung lesions and the role of Gleason Score (GS) and common biochemical markers in predicting metastatic spreading to the lungs. METHODS: We retrospectively evaluated the scans of 1283 patients ongoing (F-18-FECh) PET-CT for PC between May 2010 and July 2014...
January 17, 2018: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29345348/roles-of-neutrophils-in-cancer-growth-and-progression
#20
REVIEW
Maria Rosaria Galdiero, Gilda Varricchi, Stefania Loffredo, Alberto Mantovani, Gianni Marone
Chronic inflammation is a well-known tumor-enabling capacity, which allows nascent tumors to acquire all the hallmark capabilities, including the escape from immunosurveillance. Soluble and cellular inflammatory mediators constitute the complex network of the tumor microenvironment, in which tumors grow and with which constantly interact. Myeloid cells (e.g., tumor associated macrophages) are pivotal players of the tumor microenvironment and are characterized by plasticity, which consists of the ability to acquire distinct phenotypes in response to the microenvironment in which they reside...
December 15, 2017: Journal of Leukocyte Biology
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