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Fibrosarcoma

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https://www.readbyqxmd.com/read/29450800/the-endogenous-subcellular-localisations-of-the-long-chain-fatty-acid-activating-enzymes-acsl3-and-acsl4-in-sarcoma-and-breast-cancer-cells
#1
Yassmeen Radif, Haarith Ndiaye, Vasiliki Kalantzi, Ruth Jacobs, Andrew Hall, Shane Minogue, Mark G Waugh
Fatty acid uptake and metabolism are often dysregulated in cancer cells. Fatty acid activation is a critical step that allows these biomolecules to enter cellular metabolic pathways such as mitochondrial β-oxidation for ATP generation or the lipogenic routes that generate bioactive lipids such as the inositol phospholipids. Fatty acid activation by the addition of coenzyme A is catalysed by a family of enzymes called the acyl CoA synthetase ligases (ACSL). Furthermore, enhanced expression of particular ACSL isoforms, such as ACSL4, is a feature of some more aggressive cancers and may contribute to the oncogenic phenotype...
February 15, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29448044/safety-evaluation-of-a-human-chimeric-monoclonal-antibody-that-recognizes-the-extracellular-loop-domain-of-claudin-2
#2
Yosuke Hashimoto, Tomoyuki Hata, Minoru Tada, Manami Iida, Akihiro Watari, Yoshiaki Okada, Takefumi Doi, Hiroki Kuniyasu, Kiyohito Yagi, Masuo Kondoh
Claudin-2 (CLDN-2), a pore-forming tight-junction protein with a tetra-transmembrane domain, is involved in carcinogenesis and the metastasis of some cancers. Although CLDN-2 is highly expressed in the tight junctions of the liver and kidney, whether CLDN-2 is a safe target for cancer therapy remains unknown. We recently generated a rat monoclonal antibody (mAb, clone 1A2) that recognizes the extracellular domains of human and mouse CLDN-2. Here, we investigated the safety of CLDN-2-targeted cancer therapy by using 1A2 as a model therapeutic antibody...
February 12, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29443940/proteomic-differences-in-feline-fibrosarcomas-grown-using-doxorubicin-sensitive-and-resistant-cell-lines-in-the-chick-embryo-model
#3
Katarzyna Zabielska-Koczywąs, Katarzyna Michalak, Anna Wojtalewicz, Mateusz Winiarczyk, Łukasz Adaszek, Stanisław Winiarczyk, Roman Lechowski
Proteomic analyses are rapid and powerful tools that are used to increase the understanding of cancer pathogenesis, discover cancer biomarkers and predictive markers, and select and monitor novel targets for cancer therapy. Feline injection-site sarcomas (FISS) are aggressive skin tumours with high recurrence rates, despite treatment with surgery, radiotherapy, and chemotherapy. Doxorubicin is a drug of choice for soft tissue sarcomas, including FISS. However, multidrug resistance is one of the major causes of chemotherapy failure...
February 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29434880/clinical-significance-of-brafv600e-mutation-in-circulating-tumor-dna-in-chinese-patients-with-melanoma
#4
Huan Tang, Yan Kong, Lu Si, Chuanliang Cui, Xinan Sheng, Zhihong Chi, Jie Dai, Sifan Yu, Meng Ma, Xiaowen Wu, Jiayi Yu, Tianxiao Xu, Huan Yu, Junya Yan, Jun Guo
The present study aimed to assess the B rapidly accelerated fibrosarcoma (BRAFV600E) status in plasma from Chinese patients with melanoma, and evaluated its prognostic value following treatment with BRAF inhibitors. Mutation-specific 3D digital polymerase chain reaction (dPCR) was used to quantify BRAFV600E in circulating tumor DNA (ctDNA) in 58 patients with melanoma, prior to treatment with BRAF inhibitors. Correlations between baseline ctDNA levels and clinicopathological characteristics and clinical benefits were then statistically analyzed...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434605/mhc-intratumoral-heterogeneity-may-predict-cancer-progression-and-response-to-immunotherapy
#5
Irene Romero, Cristina Garrido, Ignacio Algarra, Virginia Chamorro, Antonia Collado, Federico Garrido, Angel M Garcia-Lora
An individual tumor can present intratumoral phenotypic heterogeneity, containing tumor cells with different phenotypes that do not present irreversible genetic alterations. We have developed a mouse cancer model, named GR9, derived from a methylcholanthrene-induced fibrosarcoma that was adapted to tissue culture and cloned into different tumor cell lines. The clones showed diverse MHC-I phenotypes, ranging from highly positive to weakly positive MHC-I expression. These MHC-I alterations are due to reversible molecular mechanisms, because surface MHC-I could be recovered by IFN-γ treatment...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29433465/strengthening-health-data-on-a-rare-and-heterogeneous-disease-sarcoma-incidence-and-histological-subtypes-in-germany
#6
Meike Ressing, Eva Wardelmann, Peter Hohenberger, Jens Jakob, Bernd Kasper, Katharina Emrich, Andrea Eberle, Maria Blettner, Sylke Ruth Zeissig
BACKGROUND: The population-based incidence of sarcoma and its histological subtypes in Germany is unknown. Up-to-date information on a disease with an incidence comparable to other cancer entities is of high public health relevance. The aim of this study was to determine this incidence and to detect significant changes in incidence trends using data from German epidemiological cancer registries. METHODS: Pooled data from the German Centre for Cancer Registry Data with a primary diagnosis occurring in 2013 were used...
February 12, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29430000/recurrent-bcor-internal-tandem-duplication-and-bcor-or-bcl6-expression-distinguish-primitive-myxoid-mesenchymal-tumor-of-infancy-from-congenital-infantile-fibrosarcoma
#7
Teresa Santiago, Michael R Clay, Sariah J Allen, Brent A Orr
This corrects the article DOI: 10.1038/modpathol.2017.12.
February 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29429159/-retroperitoneal-dedifferentiated-liposarcoma-with-rhabdomyoblastic-differentiation-a-clinicopathological-analysis
#8
L Liu, L H Wang, Y B Ren, X S Rao, S M Yang
Objective: To investigate the clinicopathological features, differential diagnosis, treatment and prognosis of dedifferentiated liposarcoma with rhabdomyoblastic differentiation. Methods: Six cases of retroperitoneal dedifferentiated liposarcoma with rhabdomyoblastic features were collected from December 2014 to August 2017 at Peking University International Hospital. The clinical manifestations, histomorphology, immunophenotype, treatment and follow-up data were analyzed, and relevant literature reviewed. Results: The six patients included two males and four females, with age range of 47 to 66 years (mean 56 years)...
February 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29426275/primary-renal-hybrid-low-grade-fibromyxoid-sarcoma-sclerosing-epithelioid-fibrosarcoma-an-unusual-pediatric-case-with-ewsr1-creb3l1-fusion
#9
Yingting Mok, Yin Huei Pang, Jain Sudhanshi Sanjeev, Chik Hong Kuick, Kenneth Tou-En Chang
Low-grade fibromyxoid sarcoma (LGFMS) and sclerosing epithelioid fibrosarcoma (SEF) are rare tumors with distinct sets of morphological features, both characterized by MUC4 immunoreactivity. Tumors exhibiting features of both entities are considered hybrid LGFMS-SEF lesions. While the majority of LGFMS cases are characterized by FUS-CREB3L2 gene fusions, most cases of pure SEF show EWSR1 gene rearrangements. In the largest study of hybrid LGFMS-SEF tumors to date, all cases exhibited FUS rearrangements, a similar genetic profile to LGFMS...
January 1, 2018: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29413661/differential-diagnosis-of-benign-spindle-cell-lesions
#10
REVIEW
Gaetano Magro
Spindle cell lesions of the breast cover a wide spectrum of diseases ranging from reactive tumor-like lesions to high-grade malignant tumors. The recognition of the benign spindle cell tumor-like lesions (nodular fasciitis; reactive spindle cell nodule after biopsy, inflammatory pseudotumor/inflammatory myofibroblastic tumor; fascicular variant of pseudoangiomatous stromal hyperplasia) and tumors (myofibroblastoma, benign fibroblastic spindle cell tumor, leiomyoma, schwannoma, spindle cell lipoma, solitary fibrous tumor, myxoma) is crucial to avoid confusion with morphologically similar but more aggressive bland-appearing spindle cell tumors, such as desmoid-type fibromatosis, low-grade (fibromatosis-like) spindle cell carcinoma, low-grade fibrosarcoma/myofibroblastic sarcoma and dermatofibrosarcoma protuberans...
March 2018: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/29399151/pseudolaric-acid-b-induced-autophagy-but-not-apoptosis-in-mrc5-human-fibroblast-cells
#11
Yue Wang, Hongmei Gao, Ting Wu, Zengyan Wang, Fengmei Song, Antian Chen, Jing Zhang, Wenyan Zhang, Hui Zhang, Jinghua Yu
Autophagy and apoptosis are closely associated. In previous studies, pseudolaric acid B (PAB), a diterpene acid isolated from the root and trunk bark of Pseudolarix kaempferi Gordon (Pinaceae), was demonstrated to induce apoptosis in various cell lines. However, in L929 murine fibrosarcoma and SW579 human thyroid squamous cell carcinoma cells, only autophagy was induced. In the present study, another cell line, MRC5 human lung fibroblast cells, was identified in which PAB only induced autophagy. The relationship between apoptosis and autophagy subsequent to PAB treatment in MRC5 cells was explored...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29391602/novel-identification-of-stat1-as-a-crucial-mediator-of-etv6-ntrk3-induced-tumorigenesis
#12
Jinah Park, Junil Kim, Bora Park, Kyung-Min Yang, Eun Jin Sun, Cristina E Tognon, Poul H Sorensen, Seong-Jin Kim
Chromosomal rearrangements that facilitate tumor formation and progression through activation of oncogenic tyrosine kinases are frequently observed in cancer. The ETV6-NTRK3 (EN) fusion has been implicated in various cancers, including infantile fibrosarcoma, secretory breast carcinoma, and acute myeloblastic leukemia, and has exhibited in vivo and in vitro transforming ability. In the present study, we analyzed transcriptome alterations using DNA microarray and RNA-Seq in EN-transduced NIH3T3 fibroblasts to identify the mechanisms that are involved in EN-mediated tumorigenesis...
February 2, 2018: Oncogene
https://www.readbyqxmd.com/read/29390560/fibromyxoid-sarcoma-in-the-retroperitoneum-a-case-report
#13
Guyi Wang, Zhenhua Zhao, Jianguo Wei, Jianfeng Yang
RATIONALE: Low-grade fibromyxoid sarcoma (LGFMS) is a pathological type of fibrosing fibrosarcoma that appears as a distinctive soft tissue masse with bland histological features. It is mostly located in the deep soft tissues of the extremities. Computed tomography (CT) plays an important role in diagnosing fibrosing fibrosarcoma in the abdomen. To date, several studies in the literature have reported on CT features of LGFMS. PATIENT CONCERNS AND DIAGNOSES: We report another case of LGFMS, which presented with certain unique CT feature...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29390442/-ancient-schwannoma-of-the-submandibular-gland-a-case-report-and-literature-review
#14
Che-Fang Ho, Pei-Wen Wu, Ta-Jen Lee, Chien-Chia Huang
RATIONALE: Schwannomas are solitary neurogenic tumors that arise from cells of the neural sheath. Ancient schwannoma is a relatively rare variant of schwannoma, characterized by increased cellularity and atypia. These cellular changes could be confusing and make the accurate pathologic diagnosis difficult. PATIENT CONCERNS AND DIAGNOSES: A 36-year-old man presented with painless swelling in left submandibular region for more than 2 years. The computed tomography confirmed a well-defined cystic lesion in the left submandibular space, which caused superior and posterior displacement of the left submandibular gland...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29380405/the-potential-of-radiolabeled-chemotherapeutics-in-tumor-diagnosis-preliminary-investigations-with-68-ga-gemcitabine
#15
Subhajit Ghosh, Tapas Das, Haladhar D Sarma, Ashutosh Dash
Preclinical Research & Development Gemcitabine, a nucleoside analog, is a well-known chemotherapeutic drug that is used either alone or with other agents to treat a wide variety of cancers. The aim of the present work was to evaluate the potential of 68 Ga-labeled gemcitabine for its application in positron emission tomography (PET) imaging of tumorous lesions. Gemcitabine was coupled with p-NCS-benzyl-DOTA in order to facilitate radiolabeling with 68 Ga. The gemcitabine-p-NCS-benzyl-DOTA was radiolabeled with 68 Ga, obtained from a 68 Ge/68 Ga radionuclide generator...
January 29, 2018: Drug Development Research
https://www.readbyqxmd.com/read/29357838/azgp1-inhibits-soft-tissue-sarcoma-cells-invasion-and-migration
#16
Jiayong Liu, Haibo Han, Zhengfu Fan, Marc El Beaino, Zhiwei Fang, Shu Li, Jiafu Ji
BACKGROUND: One of the major challenges in soft tissue sarcomas is to identify factors that predict metastasis. AZGP1 is a potential biomarker of cancer progression, but its value in soft tissue sarcomas remains unknown. The aim of this study is to determine the expression level of AZGP1 in soft tissue sarcomas, and to analyze its influence on tumor progression. METHODS: AZGP1 immunohistochemistry (IHC) and RT-PCR were performed in 86 patients with soft tissue sarcomas...
January 22, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29355494/adamts-1-disrupts-hgf-c-met-signaling-and-hgf-stimulated-cellular-processes-in-fibrosarcoma
#17
Heydi Noriega Guerra, Mário Costa Cruz, Priscilla Ramos Lara Ribeiro, Jan Strnadel, Huawei Wang, Richard L Klemke, Ruy Gastaldoni Jaeger, Vanessa Morais Freitas
Extracellular matrix (ECM) serves as a reservoir for biologically active factors, such as growth factors and proteases that influence the tumor cell behavior. ADAMTS-1 (a disintegrin and metalloprotease with thrombospondin motifs) is a secreted protease that has the ability to modify the ECM during physiological and pathological processes. Here, we analyzed the role played by ADAMTS-1 regulating HGF and TGF-β1 activities in the high-grade fibrosarcoma cell line (HT1080). We generated HT1080 and HEK293T cells overexpressing ADAMTS-1...
January 17, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29348526/prodigiosin-r2-a-new-prodigiosin-from-the-roseophilin-producer-streptomyces-griseoviridis-2464-s5
#18
Shoko Kimata, Takuya Matsuda, Yuta Suizu, Yoichi Hayakawa
Roseophilin (2) is a unique prodigiosin-related compound produced by Streptomyces griseoviridis 2464-S5, and is characterized by a central furan ring and a bicyclic alkyl chain. During a search for biosynthetic intermediates of 2, a new metabolite designated prodigiosin R2 (1) was isolated from the culture of the roseophilin producer. The molecular formula of 1 was established as C27H35N3O by high-resolution FAB-MS. The structure of 1 was determined by NMR spectroscopic analyses as a prodigiosin derivative with the same bicyclic alkyl chain as 2...
January 18, 2018: Journal of Antibiotics
https://www.readbyqxmd.com/read/29348457/ltbp3-promotes-early-metastatic-events-during-cancer-cell-dissemination
#19
Elena I Deryugina, Ewa Zajac, Lior Zilberberg, Tomoki Muramatsu, Grishma Joshi, Branka Dabovic, Daniel Rifkin, James P Quigley
Latent transforming growth factor β (TGFβ)-binding proteins (LTBPs) are important for the secretion, activation, and function of mature TGFβ, especially so in cancer cell physiology. However, specific roles of the LTBPs remain understudied in the context of the primary tumor microenvironment. Herein, we investigated the role of LTBP3 in the distinct processes involved in cancer metastasis. By using three human tumor cell lines of different tissue origin (epidermoid HEp-3 and prostate PC-3 carcinomas and HT-1080 fibrosarcoma) and several metastasis models conducted in both mammalian and avian settings, we show that LTBP3 is involved in the early dissemination of primary cancer cells, namely in the intravasation step of the metastatic cascade...
January 19, 2018: Oncogene
https://www.readbyqxmd.com/read/29339136/development-of-orally-applicable-combinatorial-drug-loaded-nanoparticles-for-the-treatment-of-fibrosarcoma
#20
Gulen Melike Demirbolat, Levent Altintas, Sukran Yilmaz, Ismail Tuncer Degim
Nanoparticulate systems have been receiving a significant attention especially for the treatment of cancer but one of the main hurdles is to produce these developed and high tech nanosystems in large quantities. Anticancer drug formulations are generally designed for parenteral administrations but oral administration is still the most convenient route. In this study, orally applicable nano-sized chitosan nanoparticles (NPs) were successfully prepared using Nano Spray Dryer. It is possible to produce these NPs in large quantities by simply increasing the processing time using the machine without changing any parameter...
January 12, 2018: Journal of Pharmaceutical Sciences
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