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I-Ting Tsai, Chao-Ping Wang, Teng-Hung Yu, Yung-Chuan Lu, Chih-Wen Lin, Li-Fen Lu, Cheng-Ching Wu, Fu-Mei Chung, Yau-Jiunn Lee, Wei-Chin Hung, Chia-Chang Hsu
Adipocytokines play an important role in adipose tissue homeostasis, especially in obesity-associated disorders such as non-alcoholic fatty liver and their complications including hepatocellular carcinoma (HCC). Although visfatin is an adipocytokine highly expressed in visceral fat that has been demonstrated to play a critical role in the progression of human malignancies, little is known about the role of visfatin in HCC associated with chronic hepatitis C virus (HCV) and hepatitis B virus (HBV) infection...
October 19, 2016: Cytokine
Vikram Shetty, Sriram S Ganapathy
Retinoblastoma (RB) is an aggressive intraocular tumor arising from cells of the retina. Infrequently, distant metastasis occurs in advanced stages of the disease. This case report describes the metastasis of the tumor to the mandible, an extremely rare phenomenon. This condition was observed for a recurrent tumor in a patient who initially underwent chemotherapy, making this case report unique and providing new insights into the behavior of this tumor. An overview of the management of a metastatic RB also is discussed...
September 28, 2016: Journal of Oral and Maxillofacial Surgery
Moushira E Zaki, Hala T El-Bassyouni, Angie M S Tosson, Eman Youness, Jihan Hussein
OBJECTIVE: Evidence of oxidative stress was reported in individuals with Down syndrome. There is a growing interest in the contribution of the immune system in Down syndrome. The aim of this study is to evaluate the coenzyme Q10 (CoQ10) and selected pro-inflammatory markers such as interleukin 6 (IL-6) and tumor necrosis factor α (TNFα) in children with Down syndrome. METHODS: Eighty-six children (5-8 years of age) were enrolled in this case-control study from two public institutions...
October 19, 2016: Jornal de Pediatria
Amita Shukla-Dave, Mireia Castillo-Martin, Ming Chen, Jose Lobo, Nataliya Gladoun, Ana C Lorduy, Faisal M Khan, Vladimir Ponomarev, Zhengzi Yi, Weijia Zhang, Pier P Pandolfi, Hedvig Hricak, Carlos Cordon-Cardo
Increased polyamine synthesis is known to play an important role in prostate cancer. We aimed to explore its functional significance in prostate tumor initiation and its link to androgen receptor (AR) signaling. For this purpose, we generated a new cell line derived from normal epithelial prostate cells (RWPE-1) with overexpression of ornithine decarboxylase (ODC) and used it for in vitro and in vivo experiments. We then comprehensively analyzed the expression of the main metabolic enzymes of the polyamine pathway and spermine abundance in 120 well-characterized cases of human prostate cancer and high-grade prostate intraepithelial neoplasia (HGPIN)...
October 19, 2016: American Journal of Pathology
Yun Bai, Jia Wang, Jing Han, Xiao-Li Xie, Cheng-Guang Ji, Jie Yin, Lei Chen, Cun-Kai Wang, Xiao-Yu Jiang, Wei Qi, Hui-Qing Jiang
BACKGROUND AND AIMS: BCL2L10 is an apoptosis-related member of the BCL-2 protein family. The role of BCL2L10 in the pathogenesis of hepatocellular carcinoma (HCC) is poorly understood. This study was aimed to investigate the function and underlying mechanisms of BCL2L10 in HCC. METHODS: BCL2L10 expression in human HCC and corresponding adjacent normal tissues was investigated by quantitative real-time PCR and western blot. The biological functions of BCL2L10 in HCC cell lines were determined by cell viability, colony formation, cell apoptosis, cell cycle and cell metastasis assays, and in vivo by tumorigenicity and lung metastasis assays in nude mice...
October 22, 2016: Molecular Carcinogenesis
Christine Wang, Xinming Tong, Xinyi Jiang, Fan Yang
Glioblastoma (GBM) is the most common and aggressive form of primary brain tumor with median survival of 12 months. To improve clinical outcomes, it is critical to develop in vitro models that support GBM proliferation and invasion for deciphering tumor progression and screening drug candidates. A key hallmark of GBM cells is their extreme invasiveness, a process mediated by matrix metalloproteinase (MMP)-mediated degradation of the extracellular matrix. We recently reported the development of a MMP-degradable, poly(ethylene-glycol)-based hydrogel platform for culturing GBM cells...
October 22, 2016: Journal of Biomedical Materials Research. Part A
Jeannine Coburn, Jamie Harris, Alexander D Zakharov, Jennifer Poirier, Naohiko Ikegaki, Andre Kajdacsy-Balla, Monika Pilichowska, Alexander V Lyubimov, Hiroyuki Shimada, David L Kaplan, Bill Chiu
Neuroblastoma is the most common extracranial childhood solid tumor. Treatment of high risk tumors require intense multi-cycle chemotherapies, resulting in short- and long-term toxicities. Here we present treatment of an orthotopic neuroblastoma mouse model, with silk fibroin materials loaded with vincristine, doxorubicin, or the combination as a intratumoral, sustained release system. The materials, loaded with vincristine with or without doxorubicin, significantly decreased neuroblastoma tumor growth compared to materials loaded without drug or doxorubicin only as well as intravenous (IV) drug treatment...
October 22, 2016: International Journal of Cancer. Journal International du Cancer
Li Zhang, Zhihong Yang, Jocelyn Trottier, Olivier Barbier, Li Wang
: Bile acids (BAs) play critical physiological functions in cholesterol homeostasis and deregulation of BA metabolism causes cholestatic liver injury. Maternally expressed gene 3 (MEG3) was recently shown as a potential tumor suppressor, however its basic hepatic function remains elusive. Using RNA pull-down with biotin-labeled sense or anti-sense MEG3RNA followed by mass spectrometry, we identified RNA binding protein polypyrimidine tract-binding protein 1 (PTBP1) as a MEG3 interaction protein and validated their interaction by RNA immunoprecipitation (RIP)...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Aqiba Bokhari, Patricia G Tiscornia-Wasserman
Renal cell carcinoma metastases to pancreas, thyroid, and contralateral adrenal gland are decidedly uncommon. Clear cell renal cell carcinoma (CCRCC) is the most frequent subtype. Cytology diagnosis may be challenging. A 74-year-old male with remote history of vocal cord malignancy and hypertension presented with abdominal pain. Computed tomography (CT) revealed 8.4 cm left renal mass highly suspicious for renal cell carcinoma, a 1.8 cm mass within vessels near left adrenal and a 2.5 cm mass in pancreatic tail...
October 22, 2016: Diagnostic Cytopathology
Joanna Pancewicz-Wojtkiewicz
Lung cancer is the most common reason of cancer deaths and about 85% of these are non-small-cell lung cancer. Currently, lung cancer therapy is mainly based on the tumor node metastasis (TNM) disease staging and tumor histological classification. Despite therapeutic innovations, the prognosis for lung cancer patients has not significantly changed in the last years. Therefore, a proper understanding of cell signaling pathways involved in cancer pathogenesis seems to be essential for improvement in cancer therapy field...
October 21, 2016: Cancer Medicine
Michaël Duruisseaux, Anne McLeer-Florin, Martine Antoine, Sanaz Alavizadeh, Virginie Poulot, Roger Lacave, Nathalie Rabbe, Jacques Cadranel, Marie Wislez
Invasive mucinous lung adenocarcinoma (IMA) is a rare subtype of lung adenocarcinoma with no effective treatment option in advanced disease. KRAS mutations occur in 28-87% of the cases. NRG1 fusions were recently discovered in KRAS-negative IMA cases and otherwise negative for known driver oncogenes and could represent an attractive therapeutic target. Published data suggest that NRG1 fusions occur essentially in nonsmoking Asian women. From an IMA cohort of 25 French patients of known ethnicity, driver oncogenes EGFR, KRAS, BRAF, ERBB2 mutations, and ALK and ROS1 rearrangements presence were analyzed...
October 21, 2016: Cancer Medicine
Majid Zaki Dizaji, Seyed H Ghaffari, Elham Hosseini, Nasrin Alizadeh, Shahrbano Rostami, Majid Momeny, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
AIM: Survivin, an inhibitor of apoptosis protein, is overexpressed in most cancers and is associated with chemotherapy resistance, increased tumor recurrence and shorter patient survival. Several survivin splice variants have been described, and none of their expressions have been defined in acute promyelocytic leukemia (APL). METHODS: Expression of the survivin gene isoforms (survivin, -2α, -2B, -ΔΕx3 and -3B) were analyzed in 50 peripheral blood and 19 bone marrow samples that were collected at different phases of the disease (diagnostic, remission and relapse) in APL patients treated with arsenic trioxide (ATO) as a front-line therapy...
October 22, 2016: Asia-Pacific Journal of Clinical Oncology
D Donegan, N Singh Ospina, R Rodriguez-Gutierrez, Z Al-Hilli, G B Thompson, B L Clarke, W F Young
BACKGROUND: In patients with multiple endocrine neoplasia type 1 (MEN-1), pancreaticoduodenal (PD) neuroendocrine tumors (NETs) are associated with early mortality, yet, the best treatment strategy, remains uncertain. AIM: To assess patient important outcomes (mortality and metastasis) of PD NETs and predictors of outcomes in patients with MEN-1. METHODS: Retrospective cohort of patients with MEN-1 who attended the Mayo Clinic, Rochester, MN from 1997-2014...
October 21, 2016: Clinical Endocrinology
Sachin C Sarode, Gargi S Sarode, Rahul Anand, Shankargouda Patil, Hemant Unadkat
BACKGROUND: The aim of the present study was to find out the efficacy of WhatsApp application for obtaining second opinion on histopathological diagnosis in oral pathology practice. METHODS: A total of 247 cases comprising of 34 different oral pathologies were photomicrographed using smartphone cameras through compound microscopes and sent for second opinion diagnosis (SOD) to 20 different oral pathologists using WhatsApp. RESULTS: Out of 4795 (97...
October 22, 2016: Journal of Oral Pathology & Medicine
Juri Bergmann, Miryam Müller, Niklas Baumann, Manuel Reichert, Carola Heneweer, Julia Bolik, Karsten Lücke, Sabine Gruber, Antonella Carambia, Susanne Boretius, Ivo Leuschner, Thomas Becker, Björn Rabe, Johannes Herkel, F Thomas Wunderlich, Hans-Willi Mitrücker, Stefan Rose-John, Dirk Schmidt-Arras
: Hepatocellular carcinoma (HCC) is one of the most frequent tumors worldwide with rising incidence. The inflammatory cytokine interleukin 6 (IL-6) is a critical mediator of HCC development. It can signal through two distinct pathways, the IL-6 classic and the IL-6 trans-signaling pathway. While IL-6 classic signaling is important for innate and acquired immunity, IL-6 trans-signaling has been linked to accelerated liver regeneration and several chronic inflammatory pathologies. However, its implication in liver tumorigenesis has not been addressed yet...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Xuehua Piao, Soh Yamazaki, Sachiko Komazawa-Sakon, Sanae Miyake, Osamu Nakabayashi, Takeyuki Kurosawa, Tetsuo Mikami, Minoru Tanaka, Nico Van Rooijen, Masaki Ohmuraya, Akira Oikawa, Yuko Kojima, Soichiro Kakuta, Yasuo Uchiyama, Masato Tanaka, Hiroyasu Nakano
: Tissue-resident macrophages and bone marrow (BM)-derived monocytes play a crucial role in the maintenance of tissue homeostasis; however, their contribution to recovery from acute tissue injury is not fully understood. To address this issue, we generated an acute murine liver injury model using hepatocyte-specific Cflar-deficient (Cflar(Hep-low) ) mice. Cellular FLICE-inhibitory protein (cFLIP) expression was downregulated in Cflar-deficient hepatocytes, which thereby increased susceptibility of hepatocytes to death receptor-induced apoptosis...
October 22, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Danielle E Jenkins, Dharshini Sreenivasan, Fiona Carman, Samal Babru, Lee E Eiden, Stephen J Bunn
The pro-inflammatory cytokines, tumor necrosis factor-α and interleukin-1β/α modulate catecholamine secretion, and long-term gene regulation, in chromaffin cells of the adrenal medulla. Since interleukin-6 (IL6) also plays a key integrative role during inflammation, we have examined its ability to affect both tyrosine hydroxylase activity and adrenomedullary gene transcription in cultured bovine chromaffin cells. IL6 caused acute tyrosine/threonine phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2), and serine/tyrosine phosphorylation of signal transducer and activator of transcription 3 (STAT3)...
October 22, 2016: Journal of Neurochemistry
Masaki Hashimoto, Shigeki Shimizu, Teruhisa Takuwa, Yoshitane Tsukamoto, Tohru Tsujimura, Seiki Hasegawa
BACKGROUND: An atypical type A thymoma variant was newly added to the WHO classification of type A thymoma family in 2015. CASE PRESENTATION: A 72-year-old female was present a large round mass in the anterior mediastinum. The radiological examination led to a preoperative diagnosis of non-invasive thymoma. Tumor resection was undertaken via median sternotomy. Complete removal of the mediastinal tumor was achieved. Pathological examination revealed that the tumor cells were spindle- and oval-shaped with atypia...
December 2016: Surgical Case Reports
Motahare Soufi, Alireza Kamali-Asl, Parham Geramifar, Arman Rahmim
PURPOSE: Determination of intra-tumor high-uptake area using 2-deoxy-2-[(18)F]fluoro-D-glucose ([(18)F]FDG) positron emission tomography (PET) imaging is an important consideration for dose painting in radiation treatment applications. The aim of our study was to develop a framework towards automated segmentation and labeling of homogeneous vs. heterogeneous tumors in clinical lung [(18)F]FDG-PET with the capability of intra-tumor high-uptake region delineation. PROCEDURES: We utilized and extended a fuzzy random walk PET tumor segmentation algorithm to delineate intra-tumor high-uptake areas...
October 21, 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
Michael L Schulte, Matthew R Hight, Gregory D Ayers, Qi Liu, Yu Shyr, M Kay Washington, H Charles Manning
PURPOSE: This study aimed to study whether cancer cells possess distinguishing metabolic features compared with surrounding normal cells, such as increased glutamine uptake. Given this, quantitative measures of glutamine uptake may reflect critical processes in oncology. Approximately, 10 % of patients with colorectal cancer (CRC) express BRAF (V600E) , which may be actionable with selective BRAF inhibitors or in combination with inhibitors of complementary signaling axes. Non-invasive and quantitative predictive measures of response to these targeted therapies remain poorly developed in this setting...
October 21, 2016: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
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