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https://www.readbyqxmd.com/read/28329421/naproxen-inhibits-uvb-induced-basal-cell-and-squamous-cell-carcinoma-development-in-ptch1-skh-1-hairless-mice
#1
Sandeep C Chaudhary, Mohammad Waseem, Mehtab Rana, Hui Xu, Levy Kopelovich, Craig A Elmets, Mohammad Athar
Naproxen possesses anti-proliferative and pro-apoptotic effects besides its known anti-inflammatory functions. Here, we demonstrate the anti-cancer effects of naproxen against UVB-induced BCCs and SCCs in a highly susceptible murine model of UVB carcinogenesis. Naproxen significantly inhibited UVB-induced BCCs and SCCs in this model. Tumor number and volume were significantly decreased (p<0.005 and p<0.05, respectively). Inhibition in UVB-induced SCCs and BCCs was 77% and 86%, respectively, which was associated with reduced PCNA and cyclin D1 and increased apoptosis...
March 22, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28327291/solid-pseudopapillary-neoplasm-of-the-pancreas-a-clinicopathological-review-of-20-cases-including-rare-examples
#2
Ayca Ersen, Anil Aysal Agalar, Erdener Ozer, Cihan Agalar, Tarkan Unek, Tufan Egeli, Mucahit Ozbilgin, Ibrahim Astarcioglu, Mustafa Olguner, Funda Obuz, Ozgul Sagol
AIMS: Solid-pseudopapillary neoplasm (SPN) is an uncommon malignant tumor of the pancreas with a favorable prognosis unlike other pancreatic neoplasms. We investigated the clinicopathological features of 20 patients with SPN in details. METHODS: The patients diagnosed as SPN in Dokuz Eylul University Hospital between January 2005 and March 2016 were reviewed in terms of clinical and histopathological data. RESULTS: Mean age of the patients was 33...
November 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28326594/hypoacetylation-of-acetyl-histone-h3-h3k9ac-as-marker-of-poor-prognosis-in-oral-cancer
#3
Liana Preto Webber, Vivian Petersen Wagner, Marina Curra, Pablo Agustin Vargas, Luise Meurer, Vinícius Coelho Carrard, Cristiane Helena Squarize, Rogério Moraes Castilho, Manoela Domingues Martins
AIMS: Epigenetics refers to changes in cell characteristics that occur independently of modifications to the DNA sequence. Oral carcinogenesis is influenced by modifications in epigenetic mechanisms, including changes in histones, which are proteins that support chromatin remodeling for the dynamic regulation of gene expression and silencing. The dysregulation of histone acetylation can lead to the uncontrolled activity of different genes, thereby triggering events associated with malignant transformation...
March 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28325361/warthin-like-papillary-renal-cell-carcinoma-clinicopathologic-morphologic-immunohistochemical-and-molecular-genetic-analysis-of-11-cases
#4
Faruk Skenderi, Monika Ulamec, Tomas Vanecek, Petr Martinek, Reza Alaghehbandan, Maria Pane Foix, Iva Babankova, Delia Perez Montiel, Isabel Alvarado-Cabrero, Marian Svajdler, Pavol Dubinský, Dana Cempirkova, Michal Pavlovsky, Semir Vranic, Ondrej Daum, Ondrej Ondic, Kristyna Pivovarcikova, Kvetoslava Michalova, Milan Hora, Pavla Rotterova, Adela Stehlikova, Martin Dusek, Michal Michal, Ondrej Hes
Oncocytic papillary renal cell carcinoma (PRCC) is a distinct subtype of PRCC, listed as a possible new variant of PRCC in the 2016 WHO classification. It is composed of papillae aligned by large single-layered eosinophilic cells showing linearly arranged oncocytoma-like nuclei. We analyzed clinicopathologic, morphologic, immunohistochemical and molecular-genetic characteristics of 11 oncocytic PRCCs with prominent tumor lymphocytic infiltrate, morphologically resembling Warthin's tumor. The patients were predominantly males (8/11, 73%), with an average age of 59years (range 14-76), and a mean tumor size of 7cm (range 1-22cm)...
April 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28322794/involvement-of-vimentin-in-neurite-outgrowth-damage-induced-by-fipronil-in-sh-sy5y-cells
#5
Theetat Ruangjaroon, Daranee Chokchaichamnankit, Chantragan Srisomsap, Jisnuson Svasti, N Monique Paricharttanakul
Fipronil, a phenylpyrazole insecticide, is more selective in its potency towards insects than humans and is thus commonly used. In this study, we demonstrated that exposure to fipronil may pose a human health risk. We observed in vitro the shortening of neurite outgrowths of SH-SY5Y neuroblastoma cells upon treatment with fipronil, even at a non-cytotoxic concentration. Fipronil induced apoptosis involving caspase-6, which is an apoptotic effector highly implicated in neurodegenerative diseases. Moreover, at a concentration that did not induce apoptosis, mitochondrial dysfunction and autophagic vacuole formation were detected...
March 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28320532/atypical-histiocytosis-in-red-squirrels-sciurus-vulgaris
#6
S H Smith, K Stevenson, J Del-Pozo, S Moss, A Meredith
Four red squirrels (Sciurus vulgaris) were subjected to necropsy examination over a 3-year period as part of a broader surveillance study. The squirrels presented with cutaneous, subcutaneous and/or internal swellings and nodules that consisted microscopically of sheets of atypical round cells and multinucleated giant cells. There was moderate anisokaryosis with rare mitoses. Nuclei ranged from oval to indented or C-shaped and some were bizarre, twisted or multilobulated. Many giant cells also had a bizarre morphology, with anisokaryosis within individual cells...
March 17, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28320435/case-report-a-case-of-eruptive-collagenoma-occurring-in-esophagus-and-intestine
#7
Ping Gao, Lili Jing, Hai Huang, Cuiping Zhang, Junmei Hao
BACKGROUND: Eruptive collagenoma is a rare disease. All of the previously reported cases were located on the skin. Here we report such a case occurring in esophagus and intestine. CASE PRESENTATION: Our patient is a Chinese woman. Two years ago, hundreds of small nodules were identified in her esophagus and intestine. The lesions were characterized by thickened hyalinized collagen fibers and haphazard neoplastic stellate cells. The tumor cells showed generally positive for vimentin and negative for h-CALD, CD34, desmin, CD163, AE1/AE3, CK7 and CK20...
March 20, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28319306/microrna-802-plays-a-tumour-suppressive-role-in-tongue-squamous-cell-carcinoma-through-directly-targeting-map2k4
#8
Xiaozhen Wu, Zuode Gong, Lanying Sun, Long Ma, Qibao Wang
OBJECTIVES: Tongue squamous cell carcinoma (TSCC) is the most common oral tumours. MicroRNAs play crucial roles in many cell processes including cell viability, development, apoptosis, migration and invasion. The role of miR-802 in the TSCC is still unknown. MATERIALS AND METHODS: The miR-802 expression in TSCC tissues and cell lines was determined by quantitative real-time polymerase chain reaction. CCK-8 assay was performed to measure the cell viability, while the cell invasion assay was used to determine the cell invasion...
March 20, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28318921/influence-of-tgf-%C3%AE-1-on-tumor-transition-in-oral-cancer-cell-and-bmsc-co-cultures
#9
F Böhrnsen, F Godek, J Kiesel, F J Kramer, P Brockmeyer, H Schliephake
OBJECTIVES: TGF-β1 signaling modulates epithelial mesenchymal transitions (EMT) of head and neck squamous cell carcinoma (HNSCC). Bone marrow mesenchymal stromal cells (BMSC) are able to exert a regulating influence on the expression of markers of EMT in HNSCC cells. It was thus the aim of this study to test the hypothesis that TGF-β1 modulates the interactions of tumor transition between BMSCs and HNSCC, affecting the expression of E-cadherin, Vimentin, Snail, Twist, MMP14 and beta-catenin...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28317912/the-soft-mechanical-signature-of-glial-scars-in-the-central-nervous-system
#10
Emad Moeendarbary, Isabell P Weber, Graham K Sheridan, David E Koser, Sara Soleman, Barbara Haenzi, Elizabeth J Bradbury, James Fawcett, Kristian Franze
Injury to the central nervous system (CNS) alters the molecular and cellular composition of neural tissue and leads to glial scarring, which inhibits the regrowth of damaged axons. Mammalian glial scars supposedly form a chemical and mechanical barrier to neuronal regeneration. While tremendous effort has been devoted to identifying molecular characteristics of the scar, very little is known about its mechanical properties. Here we characterize spatiotemporal changes of the elastic stiffness of the injured rat neocortex and spinal cord at 1...
March 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28316213/-expression-of-lim-and-sh3-protein-1-in-renal-clear-cell-carcinoma-and-its-effects-on-invasion-and-migration-of-renal-clear-cell-carcinoma-786-o-cells
#11
B Jin, L Gao, W Li, J C Chen, R M Wen, J Q Wang
Objective: To investigate the expression of LIM and SH3 protein 1 (LASP1) in renal cell carcinoma and its significance in the invasion and migration of renal clear cell carcinoma 786-O cell line. Methods: The expression level of LASP1 in 41 cases of renal cell carcinoma tissues and normal renal tissues was analyzed by immunohistochemistry. The relationship between the expression level of LASP1 and clinical characteristics was further analyzed. Expression of LASP1 in 10 cases of tumor tissues with or without lymph node metastasis was analyzed by Western blot...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28316159/-mechanism-of-angiotensin-converting-enzyme-2-overexpression-improving-collagen-synthesis-in-lung
#12
Q J Yang, B B Zheng, N N Sun, M X Pan, Z M Zheng, Y Meng
Objective: To explore the mechanism of angiotensin-converting enzyme 2 (ACE2) overexpression improving collagen synthesis in lung. Methods: Lung fibroblasts of mice over-expressing ACE2 and the wild type (WT) were cultured in vitro and divided into 5 groups: WT-control, WT-AngiotensinⅡ (AngⅡ), ACE2(+ /+) -control, ACE2(+ /+) -AngⅡ and ACE2(+ /+) -AngⅡ+ A779. The protein relative expression levels of ACE2, collagen Ⅰ, nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4), nucleotide binding and oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3), autophagy-related protein (Beclin1), ubiquitin-binding protein p62 (P62), microtubule-associated proteins light chain 3-Ⅱ (LC3-Ⅱ) were measured by Western blot and triphosadenine (ATP) level was measured by ATP Assay Kit...
March 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28316062/cldn-1-promoted-the-epithelial-to-migration-and-mesenchymal-transition-emt-in-human-bronchial-epithelial-cells-via-notch-pathway
#13
Jing Lv, Baohua Sun, Zhitao Mai, Mingming Jiang, Junfeng Du
Claudin-1 (CLDN-1) is one of main tight junction components that play an important role in epithelial-mesenchymal transition (EMT). However, the effects of CLDN-1 on the migration and EMT induced by TGF-β1 in primary normal human bronchial epithelial (NHBE) and BEAS-2B cells have not been clear. The expression of CLDN-1 was quantified by Western blotting in NHBE and BEAS-2B cells. Cell migration and invasion were detected using transwell assays. The expression level of E-cadherin, N-cadherin, α-SMA, and Vimentin was evaluated by quantitative real-time PCR and Western blotting...
March 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28315789/involvement-of-epithelial-mesenchymal-transition-afforded-by-activation-of-lox-1-tgf-%C3%AE-1-klf6-signaling-pathway-in-diabetic-pulmonary-fibrosis
#14
Xiao-Zhou Zou, Zhi-Cheng Gong, Ting Liu, Fang He, Tian-Tian Zhu, Dai Li, Wei-Fang Zhang, Jun-Lin Jiang, Chang-Ping Hu
BACKGROUND AND OBJECTIVE: Diabetic pulmonary fibrosis is a severe disease that increases mortality risk of diabetes. However, the molecular mechanisms leading to pulmonary fibrosis in diabetes are poorly understood. This study investigated the roles of epithelial-mesenchymal transition (EMT) and the associated molecular mechanisms in streptozotocin (STZ)-induced rat pulmonary fibrosis. METHODS: The rat model of diabetic pulmonary fibrosis was established by intraperitoneal injection of a single dose of STZ (35 mg/kg)...
March 15, 2017: Pulmonary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28315424/diagnostic-criteria-for-oncocytic-renal-neoplasms-a-survey-of-urologic-pathologists
#15
Sean R Williamson, Ramya Gadde, Kiril Trpkov, Michelle S Hirsch, John R Srigley, Victor E Reuter, Liang Cheng, L Priya Kunju, Ravi Barod, Craig G Rogers, Brett Delahunt, Ondrej Hes, John N Eble, Ming Zhou, Jesse K McKenney, Guido Martignoni, Stewart Fleming, David J Grignon, Holger Moch, Nilesh S Gupta
Renal oncocytoma and chromophobe renal cell carcinoma (RCC) have been long recognized as distinct tumors; however, it remains unknown if uniform diagnostic criteria are used to distinguish these tumor types in practice. A survey was distributed to urologic pathologists regarding oncocytic tumors. Responses were received from 17/26 invitees. Histologically, >1 mitotic figure was regarded as most worrisome (n=10) or incompatible (n=6) with oncocytoma diagnosis. Interpretation of focal nuclear wrinkling, focal perinuclear clearing, and multinucleation depended on extent and did not necessarily exclude oncocytoma if minor...
March 14, 2017: Human Pathology
https://www.readbyqxmd.com/read/28314112/can-mesenchymal-stem-cells-pretreated-with-platelet-rich-plasma-modulate-tissue-remodeling-in-a-rat-burn
#16
Hanan Hosni, Laila A Rashed, Soheir Mahfouz, Rania Elsayed Hussein, Marwa Alkaffas, Shaimaa Mostafa, Azza Abusree
AIM: To study the effect of PRP on BM-MSCs proliferation and to investigate their role on healing of experimental burn injury and possible mechanism of action. METHOD: Our work divided into in vitro and in vivo studies. In vitro study included,: MSCs and MSCs treated with PRP. TGF-β level and cell proliferation were assesed. In vivo study, 72 rats divided equally into 6 groups: control, burn, burn with MSCs, burn with PRP, burn with both MSCs and PRP and burn with MSCs pretreated with PRP...
March 17, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28304006/tonsillar-solitary-fibrous-tumour-a-interesting-rare-case
#17
Gulay Bulut, Remzi Erten, Ayse Oter Almali, Mehmet Deniz Bulut, Irfan Bayram
A solitary fibrous tumour (SFT) is a rare mesenchymal tumour that frequently originates in the mesothelium-covered surfaces, such as the pleura and peritoneum. It may develop in various body parts, including the head and neck. These tumours may arise in several different patterns, which results in difficulties in diagnosing them. This case is a solitary tumour developing from the palatine tonsil in a 17-year-old male patient; it is the second case in the literature. The tumour has the histopathological characteristics of a patternless pattern, a slight pleomorphism, and a composition of hypercellular and hypocellular sites...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28303407/evodiamine-attenuates-tgf-%C3%AE-1-induced-fibroblast-activation-and-endothelial-to-mesenchymal-transition
#18
Qing-Qing Wu, Yang Xiao, Xiao-Han Jiang, Yuan Yuan, Zheng Yang, Wei Chang, Zhou-Yan Bian, Qi-Zhu Tang
The aim of this study is to investigate the effect of evodiamine on fibroblast activation in cardiac fibroblasts and endothelial to mesenchymal transition (EndMT) in human umbilical vein endothelial cells (HUVECs). Neonatal rat cardiac fibroblasts were stimulated with transforming growth factor beta 1 (TGF-β1) to induce fibroblast activation. After co-cultured with evodiamine (5, 10 μM), the proliferation and pro-fibrotic proteins expression of cardiac fibroblasts were evaluated. HUVECs were also stimulated with TGF-β1 to induce EndMT and treated with evodiamine (5, 10 μM) at the same time...
March 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28302955/jejunal-fibroplasia-in-a-rat
#19
Kazufumi Kawasako, Takeshi Kanno, Masao Hamamura
A jejunal nodular mass was identified in an aging rat. Histologically, the boundaries between the lesion and surrounding normal tissue as well as between the inner circular muscle and outer longitudinal muscle were indistinct. The lesion consisted of abundant eosinophilic matrix and cells with a large round to oval nucleus and indistinct cytoplasm. There was no characteristic proliferating pattern, nuclear polymorphism and a low mitotic figure count. Masson's trichrome stain revealed that the intestinal smooth muscles were replaced by the abundant collagen fiber...
March 13, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28302679/disrupting-androgen-receptor-signaling-induces-snail-mediated-epithelial-mesenchymal-plasticity-in-prostate-cancer
#20
Lu Miao, Lin Yang, Rui Li, Daniel Nava Rodrigues, Mateus Crespo, Jer-Tsong Hsieh, Wayne D Tilley, Johann S de Bono, Luke A Selth, Ganesh V Raj
Epithelial to mesenchymal plasticity (EMP) has been linked to metastasis, stemness, and drug resistance. In prostate cancer (PCa), EMP has been associated with both suppression and activation of androgen receptor (AR) signaling. Here we investigated the effect of the potent AR antagonist enzalutamide on EMP in multiple preclinical models of PCa and patient tissues. Enzalutamide treatment significantly enhanced the expression of EMP drivers (ZEB1, ZEB2, Snail, Twist, and FOXC2) and mesenchymal markers (N-cadherin, fibronectin, and vimentin) in PCa cells, enhanced PCa cell migration, and induced PCa transformation to a spindle, fibroblast-like morphology...
March 16, 2017: Cancer Research
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