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Fibrosis and cancer

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https://www.readbyqxmd.com/read/28346854/breast-cancer-related-lymphedema-differentiating-fat-from-fluid-using-magnetic-resonance-imaging-segmentation
#1
Yuka Sen, Yi Qian, Louise Koelmeyer, Robert Borotkanics, Robyn Ricketts, Helen Mackie, Thomas C Lam, Kevin Ho Shon, Hiroo Suami, John Boyages
BACKGROUND: Lymphedema is an iatrogenic complication after breast cancer treatment in which lymph fluid in the affected limb progresses to fat deposition and fibrosis that are amenable to liposuction treatment. Magnetic resonance imaging (MRI) for lymphedema can differentiate fat tissue from fluid, but estimating relative volumes remains problematic. METHODS AND RESULTS: Patients underwent routine bilateral arm MRI both before and after liposuction for advanced lymphedema...
March 27, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28346237/current-and-future-pharmacologic-treatment-of-nonalcoholic-steatohepatitis
#2
Bubu A Banini, Arun J Sanyal
PURPOSE OF REVIEW: Nonalcoholic steatohepatitis (NASH), the aggressive form of nonalcoholic fatty liver disease (NAFLD), can progress to cirrhosis and hepatocellular cancer in 5-15% of patients and is rapidly becoming the leading cause for end-stage liver disease. Dietary caloric restriction and exercise, currently the cornerstone of therapy for NAFLD, can be difficult to achieve and maintain, underscoring the dire need for pharmacotherapy. This review presents the agents currently used in managing NAFLD and their pharmacologic targets...
March 24, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28342757/role-of-enzymatic-free-radical-scavengers-in-management-of-oxidative-stress-and-autoimmune-disorders
#3
REVIEW
Shikha Srivastava, Deependra Singh, Satish Patel, Manju R Singh
Autoimmune disorders are distinct with over production and accumulation of free radicals due to its undisclosed genesis. The cause of numerous disorders as cancer, arthritis, psoriasis, diabetes, alzheimer's, cardiovascular disease, Parkinson's, respiratory distress syndrome, colitis, crohn's, pulmonary fibrosis, obesity and ageing have been associated with immune dysfunction and oxidative stress. In an oxidative stress, reactive oxygen species generally provoke the series of oxidation at cellular level. The buildup of free radicals in turn triggers various inflammatory cells causing release of various inflammatory interleukins, cytokines, chemokines, and tumor necrosis factors which mediate signal transduction and transcription pathways as nuclear factor- kappa B (NF-κB), signal transducer and activator of transcription 3 (STAT3), hypoxia-inducible factor-1 (HIF-1α) and nuclear factor-erythroid 2-related factor (Nrf2)...
March 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28337946/up-regulation-of-cxcr4-expression-contributes-to-persistent-abdominal-pain-in-rats-with-chronic-pancreatitis
#4
Hong-Yan Zhu, Xuelian Liu, Xiuhua Miao, Di Li, Shusheng Wang, Guang-Yin Xu
Background Pain in patients with chronic pancreatitis is critical hallmark that accompanied inflammation, fibrosis, and destruction of glandular pancreas. Many researchers have demonstrated that stromal cell-derived factor 1 (also named as CXCL12) and its cognate receptor C-X-C chemokine receptor type 4 (CXCR4) involved in mediating neuropathic and bone cancer pain. However, their roles in chronic pancreatic pain remain largely unclear. Methods Chronic pancreatitis was induced by intraductal injection of trinitrobenzene sulfonic acid to the pancreas...
January 2017: Molecular Pain
https://www.readbyqxmd.com/read/28336321/the-histological-and-histomorphometric-changes-in-the-mandible-after-radiotherapy-an-animal-model
#5
Lucas J Poort, Johan H B Ludlage, Nienke Lie, Roland A Böckmann, Jim C E Odekerken, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Approximately 5% of irradiated head and neck cancer patients develop osteoradionecrosis of the mandible. The current non-surgical treatment options for osteoradionecrosis have limited effects and are based on a small number of studies. Therefore, we aimed to enhance the understanding of the pathophysiology of osteoradionecrosis by investigating changes induced by external irradiation in mini-pigs. METHODS: Sixteen Göttingen mini-pigs were divided into four groups for the application in two fractions with total equivalent radiation dosages of 25, 50, 70 Gray, and one group served as control...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28332306/impact-of-iatrogenic-iron-overload-on-the-course-of-hepatitis-c-in-dialysis-population-a-plea-for-caution
#6
Guy Rostoker, Nosratola D Vaziri
About 2.5% of the world population, corresponding to about 177 million individuals, are infected by hepatitis C virus (HCV), a small, single-stranded RNA virus. The prevalence of HCV infection among dialysis patients in Japan, Europe, and North America during the 2012 to 2015 period was found to be 8.7% in the DOPPS study. Nosocomial HCV spread in hemodialysis facilities still occurs. Increased hepatic tissue iron has been shown to play a deleterious role in the course of hepatitis C, favor development of fibrosis and cirrhosis and possibly increase the risk of liver cancer in the general population...
March 23, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28331767/radiation-fibrosis-syndrome-imitating-breast-cancer-recurrence-a-case-report
#7
Dauren Sarsenov, Fatma Aktepe, Vahit Özmen
Nowadays, surgery, radiotherapy and chemotherapy are the most frequently used modalities in the treatment of breast cancer. It is very well-known that some severe complications may result from after these treatments. Early and late complications of radiotherapy are well known. The complications of radiation therapy may be seen in (early) or after three months (late-delayed) of periods. These complications may be related with direct or indirect effect of radiation. The radiation fibrosis syndrome is a progressive fibrotic tissue sclerosis together with various clinical symptoms in the irradiation field...
January 2017: J Breast Health (2013)
https://www.readbyqxmd.com/read/28328321/ultrafast-and-predictive-mass-spectrometry-based-autotaxin-assays-for-label-free-potency-screening
#8
Tom Bretschneider, Andreas Harald Luippold, Helmut Romig, Daniel Bischoff, Klaus Klinder, Paul Nicklin, Wolfgang Rist
Autotaxin (ATX) is a promising drug target for the treatment of several diseases, such as cancer and fibrosis. ATX hydrolyzes lysophosphatidyl choline (LPC) into bioactive lysophosphatidic acid (LPA). The potency of ATX inhibitors can be readily determined by using fluorescence-based LPC derivatives. While such assays are ultra-high throughput, they are prone to false positives compared to assays based on natural LPC. Here we report the development of ultrafast mass spectrometry-based ATX assays enabling the measurement of data points within 13 s, which is 10 times faster than classic liquid chromatography-mass spectrometry...
April 2017: SLAS Discov
https://www.readbyqxmd.com/read/28326574/tumour-epithelial-and-stromal-characteristics-of-hepatocellular-carcinomas-with-abundant-fibrous-stroma-fibrolamellar-versus-scirrhous-hepatocellular-carcinoma
#9
Young-Joo Kim, Hyungjin Rhee, Jeong Eun Yoo, Venancio A F Alves, Gi Jeong Kim, Hye Min Kim, Paulo Herman, Aline Chagas, Haeryoung Kim, Young Nyun Park
AIMS: The scirrhous variant of hepatocellular carcinoma (S-HCC) and fibrolamellar HCC (FL-HCC) are less common subtypes of HCC that are characterised by abundant fibrous stroma. Here, we aimed to investigate differences in the tumour microenvironment and the tumour epithelial cell characteristics of S-HCC and FL-HCC. METHODS AND RESULTS: Whole tissue sections of 17 S-HCCs and 9 FL-HCCs were subjected to immunohistochemical stains for K7, K19, EpCAM, CD56/NCAM, CD163, CD68, pSTAT3, FAP, CCN2 and Ki-67...
March 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28325757/loss-of-cd73-prevents-accumulation-of-alternatively-activated-macrophages-and-the-formation-of-prefibrotic-macrophage-clusters-in-irradiated-lungs
#10
Simone de Leve, Florian Wirsdörfer, Federica Cappuccini, Alexandra Schütze, Alina V Meyer, Katharina Röck, Linda F Thompson, Jens W Fischer, Martin Stuschke, Verena Jendrossek
While radiotherapy is a mainstay for cancer therapy, pneumonitis and fibrosis constitute dose-limiting side effects of thorax and whole body irradiation. So far, the contribution of immune cells to disease progression is largely unknown. Here we studied the role of ecto-5'-nucelotidase (CD73)/adenosine-induced changes in the myeloid compartment in radiation-induced lung fibrosis. C57BL/6 wild-type or CD73(-/-) mice received a single dose of whole thorax irradiation (WTI, 15 Gy). Myeloid cells were characterized in flow cytometric, histologic, and immunohistochemical analyses as well as RNA analyses...
March 21, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28322297/standardized-herbal-formula-pm014-inhibits-radiation-induced-pulmonary-inflammation-in-mice
#11
Jee-Youn Kim, Dasom Shin, Gihyun Lee, Jin-Mo Kim, Dongwook Kim, Yong-Min An, Byung Rok Yoo, Hanna Chang, Miran Kim, Jaeho Cho, Hyunsu Bae
Radiation therapy is widely used for thoracic cancers. However, it occasionally causes radiation-induced lung injuries, including pneumonitis and fibrosis. Chung-Sang-Bo-Ha-Tang (CSBHT) has been traditionally used to treat chronic pulmonary disease in Korea. PM014, a modified herbal formula derived from CSBHT, contains medicinal herbs of seven species. In our previous studies, PM014 exhibited anti-inflammatory effects in a chronic obstructive pulmonary disease model. In this study, we have evaluated the effects of PM014 on radiation-induced lung inflammation...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317925/liver-macrophages-in-tissue-homeostasis-and-disease
#12
REVIEW
Oliver Krenkel, Frank Tacke
Macrophages represent a key cellular component of the liver, and are essential for maintaining tissue homeostasis and ensuring rapid responses to hepatic injury. Our understanding of liver macrophages has been revolutionized by the delineation of heterogeneous subsets of these cells. Kupffer cells are a self-sustaining, liver-resident population of macrophages and can be distinguished from the monocyte-derived macrophages that rapidly accumulate in the injured liver. Specific environmental signals further determine the polarization and function of hepatic macrophages...
March 20, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28317358/-epidemiological-investigation-of-chewing-fresh-or-dried-betel-nut-and-oral-mucosal-disease
#13
Du Yongxiu, Sun Dongye, Jian Xinchun, Mao Qiuhua, Cheng Yanan, Xu Pu
OBJECTIVE: This study was conducted to investigate the effect of chewing fresh or dried betel nut on the inci-dence and canceration of oral mucosa disease in Haikou City in Hainan Province. METHODS: Through a survey questionnaire, clinical examination, and regular follow-up, we collected clinical data from 1 722 cases and divided them into two groups, among which 704 of the afflicted people chew dried betel nut, whereas the other 1 018 chew fresh betel nut. The data were 
statistically analyzed using different variables which included age, number, time of onset of the disease, and the cancerous condition associated with common oral mucosa disease, including oral submucous fibrosis (OSF), oral leukoplakia (OLK), and oral Lichen planus (OLP)...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28315314/nicotine-promotes-cholangiocarcinoma-growth-in-xenograft-mice
#14
Allyson K Martínez, Kendal Jensen, Chad Hall, April O'Brien, Laurent Ehrlich, Tori White, Fanyin Meng, Tianhao Zhou, John Greene, Francesca Bernuzzi, Pietro Invernizzi, David E Dostal, Terry Lairmore, Gianfranco Alpini, Shannon Glaser
Nicotine, the main addictive substance in tobacco, is known to play a role in the development and/or progression of a number of malignant tumors. However, nicotine's involvement in the pathogenesis of cholangiocarcinoma is controversial. Therefore, we studied the effects of nicotine on the growth of cholangiocarcinoma cells in vitro and the progression of cholangiocarcinoma in a mouse xenograft model. The predominant subunit responsible for nicotine-mediated proliferation in normal and cancer cells, the α7 nicotinic acetylcholine receptor (α7-nAChR), was more highly expressed in human cholangiocarcinoma cell lines compared with normal human cholangiocytes...
March 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28315153/effects-of-histone-deacetylase-inhibitory-prodrugs-on-epigenetic-changes-and-dna-damage-response-in-tumor-and-heart-of-glioblastoma-xenograft
#15
Nataly Tarasenko, Abraham Nudelman, Gabriela Rozic, Suzanne M Cutts, Ada Rephaeli
The histone deacetylase (HDAC) inhibitory prodrugs of butyric (AN7) and valproic (AN446) acids, which release the active acids upon metabolic degradation, were studied examining their differential effects on the viability, HDAC inhibitory activity and the DNA damage response (DDR), in glioblastoma cell and normal human astrocytes (NHAs). In xenografts of glioblastoma, AN7 or AN446 given or the combination of each of them with Dox augmented the anticancer activity of Dox and protected the heart from its toxicity...
March 17, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28314668/extracellular-superoxide-dismutase-increased-the-therapeutic-potential-of-human-mesenchymal-stromal-cells-in-radiation-pulmonary-fibrosis
#16
Li Wei, Jing Zhang, Zai-Liang Yang, Hua You
BACKGROUND AIMS: Pulmonary fibrosis induced by irradiation is a significant problem of radiotherapy in cancer patients. Extracellular superoxide dismutase (SOD3) is found to be predominantly and highly expressed in the extracellular matrix of lung and plays a pivotal role against oxidative damage. Early administration of mesenchymal stromal cells (MSCs) has been demonstrated to reduce fibrosis of damaged lung. However, injection of MSCs at a later stage would be involved in fibrosis development...
March 14, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28301516/follistatin-attenuates-radiation-induced-fibrosis-in-a-murine-model
#17
Helen B Forrester, David M de Kretser, Trevor Leong, Jim Hagekyriakou, Carl N Sprung
PURPOSE: Fibrosis can be a disabling, severe side effect of radiotherapy that can occur in patients, and for which there is currently no effective treatment. The activins, proteins which are members of the TGFβ superfamily, have a major role in stimulating the inflammatory response and subsequent fibrosis. Follistatin is an endogenous protein that binds the activins virtually irreversibly and inhibits their actions. These studies test if follistatin can attenuate the fibrotic response using a murine model of radiation-induced fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28300285/hx-1171-a-novel-nrf2-activator-induces-nqo1-and-hmox1-expression
#18
Jimin Kim, Su-Hyun Shin, Young-Eun Ko, Tokutaro Miki, Heung-Mo Bae, Jong-Koo Kang, Jae Wha Kim
HX-1171 (1-O-hexyl-2,3,5-trimethylhydroquinone) is a novel synthesized vitamin E derivative, which reportedly has positive effects on various diseases and conditions, such as liver fibrosis, hepatic cirrhosis, and cancer. In this study, we analyzed the transcriptional activity induced by HX-1171. Results from reverse transcription polymerase chain reaction and promoter assays reveal that HX-1171 increased the expression of NQO1 and HMOX1, encoding antioxidant-related enzymes, in A549 human lung epithelial cells...
March 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28299674/the-emerging-roles-of-runx-transcription-factors-in-epithelial-mesenchymal-transition
#19
Dominic Chih-Cheng Voon, Jean Paul Thiery
Epithelial-mesenchymal transition (EMT) is an evolutionary conserved morphogenetic program necessary for the shaping of the body plan during development. It is guided precisely by growth factor signaling and a dedicated network of specialised transcription factors. These are supported by other transcription factor families serving auxiliary functions during EMT, beyond their general roles as effectors of major signaling pathways. EMT transiently induces in epithelial cells mesenchymal properties, such as the loss of cell-cell adhesion and a gain in cell motility...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28297806/-research-advances-in-the-pathogenesis-of-non-alcoholic-fatty-liver-disease-associated-liver-cancer
#20
W Huang, X X Zhang
Nonalcoholic fatty fiver disease (NAFLD) is one of the most common causes of chronic liver disease in clinical practice. It develops from simple fatty liver, nonalcoholic fatty hepatitis to liver fibrosis which may develop liver cirrhosis and result in hepatocellular carcinoma(HCC) eventually. Although studies show that many cell signaling pathways, genes and cell factors are involved in the progression and development of NAFLD related HCC, the exact mechanism underling the pathogenesis of NAFLD-HCC remains poorly understand...
February 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
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