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Fibrosarcoma

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https://www.readbyqxmd.com/read/27910123/congenital-infantile-fibrosarcoma-mimicking-a-cutaneous-vascular-lesion-a-case-report-and-review-of-the-literature
#1
Tyler Enos, Gregory A Hosler, Naseem Uddin, Adnan Mir
Congenital infantile fibrosarcoma (CIFS) is a rare neoplasm of infancy that occurs most frequently in the extremities, and when presenting in the skin, may sometimes resemble infantile hemangiomas or other vascular lesions. Clinically, these tumors differ from hemangiomas in the time of onset, morphology, and growth pattern and must be evaluated histologically for definitive diagnosis. We describe an infant with a neoplasm involving the distal left forearm initially presumed to be a vascular lesion after evaluation by two separate ultrasound studies...
November 7, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27909727/anti%C3%A2-proliferative-activity-of-epigallocatechin%C3%A2-3%C3%A2-gallate-and-silibinin-on-soft-tissue-sarcoma-cells
#2
Kamran Harati, Björn Behr, Christoph Wallner, Adrien Daigeler, Tobias Hirsch, Frank Jacobsen, Marcus Renner, Ali Harati, Marcus Lehnhardt, Mustafa Becerikli
Disseminated soft tissue sarcomas (STS) present a therapeutic dilemma. The first-line cytostatic doxorubicin demonstrates a response rate of 30% and is not suitable for elderly patients with underlying cardiac disease, due to its cardiotoxicity. Well‑tolerated alternative treatment options, particularly in palliative situations, are rare. Therefore, the present study assessed the anti‑proliferative effects of the natural compounds epigallocatechin-3-gallate (EGCG), silibinin and noscapine on STS cells. A total of eight different human STS cell lines were used in the study: Fibrosarcoma (HT1080), liposarcoma (SW872, T778 and MLS‑402), synovial sarcoma (SW982, SYO1 and 1273) and pleomorphic sarcoma (U2197)...
November 28, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27908167/computer-aided-prognosis-for-cell-death-categorization-and-prediction-in-vivo-using-quantitative-ultrasound-and-machine-learning-techniques
#3
M J Gangeh, A Hashim, A Giles, L Sannachi, G J Czarnota
PURPOSE: At present, a one-size-fits-all approach is typically used for cancer therapy in patients. This is mainly because there is no current imaging-based clinical standard for the early assessment and monitoring of cancer treatment response. Here, the authors have developed, for the first time, a complete computer-aided-prognosis (CAP) system based on multiparametric quantitative ultrasound (QUS) spectroscopy methods in association with texture descriptors and advanced machine learning techniques...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27902314/newcastle-disease-virus-degrades-hif-1%C3%AE-through-proteasomal-pathways-independent-of-vhl-and-p53
#4
Noraini Abd-Aziz, Eric Stanbridge, Norazizah Shafee
Newcastle disease virus (NDV) is a candidate agent for oncolytic virotherapy. Despite its potential, the exact mechanism of its oncolysis is still not known. Recently, we reported that NDV exhibited an increased oncolytic activity in hypoxic cancer cells. These types of cells negatively affect therapeutic outcome by overexpressing pro-survival genes under the control of the hypoxia-inducible factor (HIF). HIF-1 is a heterodimeric transcriptional factor consisting of a regulated alpha (HIF-1α) and a constitutive beta subunit (HIF-1β)...
October 6, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27899417/emerging-roles-of-glis3-in-neonatal-diabetes-type-1-and-type-2-diabetes
#5
Xianjie Wen, Yisheng Yang
GLI-similar 3 (GLIS3), a member of the Krüppel-like zinc finger protein subfamily, is predominantly expressed in the pancreas, thyroid, and kidney. Glis3 mRNA can be initially detected in mouse pancreas at embryonic day 11.5 and is largely restricted to β cells, pancreatic polypeptide-expressing cells, as well as ductal cells at later stage of pancreas development. Mutations in GLIS3 cause a neonatal diabetes syndrome, characterized by neonatal diabetes, congenital hypothyroidism, and polycystic kidney. Importantly, genome-wide association studies showed that variations of GLIS3 are strongly associated with both type 1 diabetes (T1D) and type 2 diabetes (T2D) in multiple populations...
November 29, 2016: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/27893837/cell-type-specific-modulation-of-cobalamin-uptake-by-bovine-serum
#6
Hua Zhao, Kalani Ruberu, Hongyun Li, Brett Garner
Tracking cellular 57Co-labelled cobalamin (57Co-Cbl) uptake is a well-established method for studying Cbl homeostasis. Previous studies established that bovine serum is not generally permissive for cellular Cbl uptake when used as a supplement in cell culture medium, whereas supplementation with human serum promotes cellular Cbl uptake. The underlying reasons for these differences are not fully defined. In the current study we address this question. We extend earlier observations by showing that fetal calf serum inhibits cellular 57Co-Cbl uptake by HT1080 cells (a fibrosarcoma-derived fibroblast cell line)...
2016: PloS One
https://www.readbyqxmd.com/read/27876070/ovarian-thecoma-fibroma-groups-clinical-and-sonographic-features-with-pathological-comparison
#7
Hui Chen, Yan Liu, Li-Fei Shen, Mei-Jiao Jiang, Zhi-Fang Yang, Guo-Ping Fang
BACKGROUND: Ovarian thecoma-fibroma groups (OTFG) are uncommon sex cord-stromal neoplasms. The objective of the study was to demonstrate clinical and sonographic features of OTFG and compare with surgical histopathology. METHODS: A total of 61 patients with surgically proven OTFG were enrolled in this retrospective study to demonstrate its clinical and sonographic features and to compare with pathological findings. Gray scale and color Doppler sonography were performed presurgically with either transabdominal or transvaginal approach to image pelvic structures and lesions...
November 22, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27872537/large-retroperitoneal-extraosseous-osteosarcoma-invading-into-the-spine-a-case-report
#8
Anish P Nagpal, Somesh Chandra, Shaifali Goel
Extraosseous osteogenic sarcoma is a very rare malignant neoplasm. The most common sites are the extremities, thorax, and the abdomen. Retroperitoneal osteosarcomas are rare and very few cases have been reported. They are similar in their biology to high-grade soft tissue sarcomas. R0 resection appears to be the best possible treatment for these tumors but there are no published cases on how to manage them when it involves posterior and intra-spinal regions. We report a 62-year-old male who presented with a backache, and investigations revealed a large retroperitoneal fibrosarcoma invading into the lumbar spine, but was found to be an extra osseous osteosarcoma on final histopathological examination...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27870005/hiv-protease-inhibitors-for-the-treatment-of-cancer-repositioning-hiv-protease-inhibitors-while-developing-more-potent-no-hybridized-derivatives
#9
REVIEW
Danijela Maksimovic-Ivanic, Paolo Fagone, James McCubrey, Klaus Bendtzen, Sanja Mijatovic, Ferdinando Nicoletti
The possible use of HIV protease inhibitors (HIV-PI) as new therapeutic option for the treatment of cancer primarily originated from their success in treating HIV-related Kaposi's sarcoma (KS). While these findings were initially attributed to immune reconstitution and better control of oncogenic viral infections, the number of reports on solid tumors, KS, lymphoma, fibrosarcoma, multiple myeloma, and prostate cancer suggest other mechanisms for the anti-neoplastic activity of PIs. However, a major drawback for the possible adoption of HIV-PIs in the therapy of cancer relies on their relatively weak anticancer potency, and important side effects...
November 21, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27867481/temporal-variation-in-the-response-of-tumors-to-hyperoxia-with-breathing-carbogen-and-oxygen
#10
Hua-Gang Hou, Nadeem Khan, Gai-Xin Du, Sassan Hodge, Harold M Swartz
The effect of hyperoxygenation with carbogen (95% O2 + 5% CO2) and 100% oxygen inhalation on partial pressure of oxygen (pO2) of radiation-induced fibrosarcoma (RIF-1) tumor was investigated. RIF-1 tumors were innoculated in C3H mice, and aggregates of oximetry probe, lithium phthalocyanine (LiPc), was implanted in each tumor. A baseline tumor pO2 was measured by electron paramagnetic resonance (EPR) oximetry for 20 minutes in anesthetized mice breathing 30% O2 and then the gas was switched to carbogen or 100 % oxygen for 60 minutes...
July 2016: Medical Gas Research
https://www.readbyqxmd.com/read/27861332/systemic-vasculitis-associated-with-vemurafenib-treatment-case-report-and-literature-review
#11
Adrien Mirouse, Léa Savey, Fanny Domont, Cloé Comarmond, Stéphane Barete, Emmanuelle Plaisier, Philippe Rouvier, Patrice Cacoub, David Saadoun
RATIONALE: Vemurafenib, an inhibitor of mutated B-rapidly accelerated fibrosarcoma, is frequently used in the treatment of melanoma and Erdheim-Chester disease (ECD) patients. Inflammatory adverse effects have been increasingly reported after vemurafenib treatment. PATIENT CONCERNS AND DIAGNOSE: We report 6 cases of vemurafenib-associated vasculitis, of whom a personal case of a 75-year-old man with history of ECD who developed purpura and rapidly progressive pauci-immune glomerulonephritis during treatment with vemurafenib...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858943/apobec3a-intratumoral-dna-electroporation-in-mice
#12
A Kostrzak, V Caval, M Escande, E Pliquet, J Thalmensi, T Bestetti, M Julithe, L Fiette, T Huet, S Wain-Hobson, P L Demoyen
Human APOBEC3A (A3A) cytidine deaminase shows pro-apoptotic properties resulting from hypermutation of genomic DNA, induction of double stranded DNA breaks (DSBs) and G1 cell cycle arrest. Given this we evaluated the anti-tumor efficacy of A3A by intratumoral electroporation of an A3A expression plasmid. DNA was repeatedly electroporated into B16OVA, B16Luc tumors of C57BL/6J mice as well as the aggressive fibrosarcoma Sarc2 tumor of HLA-A*0201/DRB1*0101 transgenic mice using non-invasive plate electrodes. Intratumoral electroporation of A3A plasmid DNA resulted in regression of ~50% of small B16OVA melanoma tumors which did not rebound in the following two months without treatment...
November 18, 2016: Gene Therapy
https://www.readbyqxmd.com/read/27829226/sumoylated-mafb-promotes-colorectal-cancer-tumorigenesis
#13
Lin-Sen Yang, Xiao-Jian Zhang, Yin-Yin Xie, Xiao-Jian Sun, Ren Zhao, Qiu-Hua Huang
The transcription factor, v-maf avian musculoaponeurotic fibrosarcoma oncogene homolog B (MAFB), promotes tumorigenesis in some cancers. In this study, we found that MAFB levels were increased in clinical colorectal cancer (CRC) samples, and higher expression correlated with more advanced TNM stage. We identified MAFB amplifications in a majority of tumor types in an assessment of The Cancer Genome Atlas database. Altered MAFB levels due to gene amplification, deletion, mutation, or transcription upregulation occurred in 9% of CRC cases within the database...
November 5, 2016: Oncotarget
https://www.readbyqxmd.com/read/27812865/cellular-model-of-p21-induced-senescence
#14
Michael Shtutman, Bey-Dih Chang, Gary P Schools, Eugenia V Broude
Cellular senescence is a unique process of normal physiology, from embryonic development to aging, also known for its association with a broad range of pathological conditions. Therefore a reliable model of cellular senescence remains an indispensable tool for the investigation of senescence-associated changes and human disease. Here we describe a model of HT1080 fibrosarcoma cells with an inducible senescence phenotype. These cells are equipped with the lac repressor and exogenous p21 under the control of a lac repressor regulated promoter...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27808331/evaluation-of-a-furochromone-from-the-halophyte-corydalis-heterocarpa-for-cytotoxic-activity-against-human-gastric-cancer-ags-cells
#15
Chang-Suk Kong, You Ah Kim, Hojun Kim, Youngwan Seo
A furochromone, heterocarpin (1), was isolated from the halophyte Corydalis heterocarpa, along with four known compounds (2-5), which were obtained for the first time from this genus. The chemical structures of these compounds were determined by extensive 2-D NMR experiments and by comparison with the data reported in the literature. Compound 1 showed significant cytotoxic activities against four human cancer cells, AGS (human gastric cancer), HT-29 (human colon cancer), HT-1080 (human fibrosarcoma) and MCF-7 (human breast carcinoma)...
November 3, 2016: Food & Function
https://www.readbyqxmd.com/read/27800511/oxygen-dependent-regulation-of-aquaporin-3-expression
#16
David Hoogewijs, Melanie Vogler, Eveline Zwenger, Sabine Krull, Anke Zieseniss
The purpose of this study was to investigate whether aquaporin-3 (AQP3) expression is altered in hypoxia and whether hypoxia-inducible transcription factor (HIF)-1 regulates the hypoxic expression. AQP3 mRNA expression was studied in L929 fibrosarcoma cells and in several tissues derived from mice that were subjected to hypoxia. Computational analysis of the AQP3 promoter revealed conserved HIF binding sites within close proximity to the translational start site, and chromatin immunoprecipitation assays confirmed binding of HIF-1α to the endogenous hypoxia response elements...
2016: Hypoxia
https://www.readbyqxmd.com/read/27793845/enhanced-detection-of-cancer-biomarkers-in-blood-borne-extracellular-vesicles-using-nanodroplets-and-focused-ultrasound
#17
Robert J Paproski, Juan Jovel, Gane Ka-Shu Wong, John D Lewis, Roger J Zemp
The feasibility of personalized medicine approaches will be greatly improved by the development of non-invasive methods to interrogate tumor biology. Extracellular vesicles shed by solid tumors into the bloodstream have been under recent investigation as a source of tumor-derived biomarkers such as proteins and nucleic acids. We report here an approach using sub-micrometer perfluorobutane nanodroplets and focused ultrasound to enhance the release of extracellular vesicles from specific locations in tumors into the blood...
October 28, 2016: Cancer Research
https://www.readbyqxmd.com/read/27790998/extracellular-matrix-stiffness-causes-systematic-variations-in-proliferation-and-chemosensitivity-in-myeloid-leukemias
#18
Jae-Won Shin, David J Mooney
Extracellular matrix stiffness influences biological functions of some tumors. However, it remains unclear how cancer subtypes with different oncogenic mutations respond to matrix stiffness. In addition, the relevance of matrix stiffness to in vivo tumor growth kinetics and drug efficacy remains elusive. Here, we designed 3D hydrogels with physical parameters relevant to hematopoietic tissues and adapted them to a quantitative high-throughput screening format to facilitate mechanistic investigations into the role of matrix stiffness on myeloid leukemias...
October 25, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27770472/whatsapp-is-an-effective-tool-for-obtaining-second-opinion-in-oral-pathology-practice
#19
Sachin C Sarode, Gargi S Sarode, Rahul Anand, Shankargouda Patil, Hemant Unadkat
BACKGROUND: The aim of this 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: Of 4795 (97.06%) total second opinion received, correct SOD were received for 4710 (98...
October 22, 2016: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/27764545/collagen-gel-protects-l929-cells-from-tnf%C3%AE-induced-death-by-activating-nf-%C3%AE%C2%BAb
#20
Hong-Ju Wang, Meng-Qi Li, Wei-Wei Liu, Toshihiko Hayashi, Hitomi Fujisaki, Shunji Hattori, Shin-Ichi Tashiro, Satoshi Onodera, Takashi Ikejima
PURPOSE: Type I collagen is one of the most abundant components of extracellular matrix. We previously illustrated that murine fibrosarcoma L929 cells grew well on type I collagen gel and escaped from TNFα-induced cell death. In this study, we investigated the mechanism underlying the protective effect of collagen gel. MATERIAL AND METHODS: We used western blot, confocal microscopy, MTT assay and flow cytometry by introducing fluorescence staining to determine the expression levels of nuclear factor kappa B (NF-κB), inhibitory ratio and autophagy...
October 20, 2016: Connective Tissue Research
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