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https://www.readbyqxmd.com/read/28529490/microgravity-induced-transcriptome-adaptation-in-mouse-paraspinal-longissimus-dorsi-muscle-highlights-insulin-resistance-linked-genes
#1
Guido Gambara, Michele Salanova, Stefano Ciciliot, Sandra Furlan, Martina Gutsmann, Gudrun Schiffl, Ute Ungethuem, Pompeo Volpe, Hanns-Christian Gunga, Dieter Blottner
Microgravity as well as chronic muscle disuse are two causes of low back pain originated at least in part from paraspinal muscle deconditioning. At present no study investigated the complexity of the molecular changes in human or mouse paraspinal muscles exposed to microgravity. The aim of this study was to evaluate longissimus dorsi adaptation to microgravity at both morphological and global gene expression level. C57BL/N6 male mice were flown aboard the BION-M1 biosatellite for 30 days (BF) or housed in a replicate flight habitat on ground (BG)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28525423/congenital-infantile-fibrosarcoma-associated-with-a-lipofibromatosis-like-component-one-train-may-be-hiding-another
#2
Romain Swiadkiewicz, Louise Galmiche, Kahina Belhous, Olivia Boccara, Sylvie Fraitag, Florence Pedeutour, Bérangère Dadone, Jacques Buis, Arnaud Picard, Daniel Orbach, Natacha Kadlub
Congenital infantile fibrosarcoma (CIFS) is a soft tissue sarcoma of infants mainly involving lower extremities and usually developing during the first year of life. At another end of the spectrum of pediatric fibroblastic lesions, lipofibromatosis is a rare benign infiltrative soft tissue tumor that affects children. The authors report in this study a particular presentation with a CIFS surrounded by lipofibromatosis-like areas. The presence of a surrounding benign tumor confused and delayed CIFS diagnosis...
June 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28521429/b-cells-inhibit-the-antitumor-immunity-against-an-established-murine-fibrosarcoma
#3
Andrea Maglioco, Damián G Machuca, María Noel Badano, Paula Nannini, Gabriela V Camerano, Héctor Costa, Roberto Meiss, Raúl A Ruggiero, Mirta Giordano, Graciela I Dran
Despite the classic role of B cells in favoring the immune response, an inhibitory action of B lymphocytes in tumor immunity has emerged in certain studies. In methylcolanthrene-induced murine fibrosarcoma (MCC), the loss of immunogenicity and the establishment of tolerance are paralleled by systemic immune suppression and the appearance of B(+)IL-10(+) cells in tumor-draining lymph nodes. The present study aimed to assess the role of the B(+)IL-10(+) cell population in the immune evasion and tolerance induced by MCC through the depletion of B cells in mice at various times of tumor progression: Prior to or subsequent to tumor implantation...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28513646/biocompatibility-and-therapeutic-evaluation-of-magnetic-liposomes-designed-for-self-controlled-cancer-hyperthermia-and-chemotherapy
#4
Manashjit Gogoi, Manish K Jaiswal, Haladhar Dev Sarma, Dhirendra Bahadur, Rinti Banerjee
Magnetic liposome-mediated combined chemotherapy and hyperthermia is gaining importance as an effective therapeutic modality for cancer. However, control and maintenance of optimum hyperthermia are major challenges in clinical settings due to the overheating of tissues. To overcome this problem, we developed a novel magnetic liposomes formulation co-entrapping a dextran coated biphasic suspension of La0.75Sr0.25MnO3 (LSMO) and iron oxide (Fe3O4) nanoparticles for self-controlled hyperthermia and chemotherapy...
May 17, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/28510278/tfg-met-fusion-in-an-infantile-spindle-cell-sarcoma-with-neural-features
#5
Uta Flucke, Max M van Noesel, Marc Wijnen, Lei Zhang, Chun-Liang Chen, Yun-Shao Sung, Cristina R Antonescu
An increasing number of congenital and infantile sarcomas displaying a primitive, monomorphic spindle cell phenotype have been characterized to harbor recurrent gene fusions, including infantile fibrosarcoma and congenital spindle cell rhabdomyosarcoma. Here we report an unusual spindle cell sarcoma presenting as a large and infiltrative pelvic soft tissue mass in a 4-month-old girl, which revealed a novel TFG-MET gene fusion by whole transcriptome RNA sequencing. The tumor resembled the morphology of an infantile fibrosarcoma with both fascicular and patternless growth, however, it expressed strong S100 protein immunoreactivity, while lacking SOX10 staining and retaining H3K27me3 expression...
May 16, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28509377/h3-1-k36m-mutation-in-a-congenital-onset-soft-tissue-neoplasm
#6
Kristin D Kernohan, David Grynspan, Raveena Ramphal, Eric Bareke, You Chang Wang, Elizabeth Nizalik, Jiannis Ragoussis, Nada Jabado, Kym M Boycott, Jacek Majewski, Sarah L Sawyer
We describe a patient who presented with a congenital soft tissue lesion initially diagnosed as infantile fibromatosis at 15 days of age. Unusually, the mass demonstrated malignant progression leading to death at 20 months of age. Biological progression to malignancy is not known to occur in fibromatosis, and fibrosarcoma is not known to progress from a benign lesion. Whole-exome sequencing of the tumor identified a driver mutation in histone H3.1 at lysine (K)36. Our findings support the link between oncohistones and infantile soft tissue tumors and provide additional evidence for the oncogenic effects of p...
May 16, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28508276/effects-of-sleeve-gastrectomy-on-serum-12%C3%AE-hydroxylated-bile-acids-in-a-diabetic-rat-model
#7
Minggang Wang, Qunzheng Wu, Haibin Xie, Yi Shao, Mingwei Zhong, Xiang Zhang, Shaozhuang Liu, Xiao He, Sanyuan Hu, Guangyong Zhang
BACKGROUND: Diabetes mellitus is a prevalent disease that endangers human health. Bariatric surgery can effectively relieve insulin resistance with elevated serum bile acids (BAs). 12α-Hydroxylated BAs were previously reported to be associated with insulin resistance. The aim of this study was to analyze changes in 12α-hydroxylated BA composition and possible associated mechanisms in diabetic rats following sleeve gastrectomy (SG). METHODS: SG and sham operations were performed in diabetic rats induced by high-fat diet feeding and streptozotocin...
May 15, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28507493/comparison-of-the-incidence-of-skin-cancers-in-patients-on-dialysis-and-after-kidney-transplantation
#8
Joanna Sułowicz, Anna Wojas-Pelc, Ewa Ignacak, Katarzyna Krzanowska, Marek Kuźniewski, Władysław Sułowicz
INTRODUCTION: Kidney transplant (KTx) patients on immunosuppressive therapy are predisposed to the development of infections and cancers. AIM: To compare the incidence and type of malignant skin lesions in kidney transplant patients and the dialyzed population based on the initiated dermatologic screening. MATERIAL AND METHODS: The study included 598 patients: 486 kidney transplant recipients and 112 patients on maintenance dialysis. All the patients underwent dermatological examination...
April 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28502829/primary-ovarian-fibrosarcoma-an-unusual-tumor-in-an-adolescent-case-report-and-review-of-the-pediatric-literature
#9
Bade T Kurtmen, Zafer Dokumcu, Emre Divarci, Gürdeniz Serin, Orkan Ergun, Geylani Ozok, Ahmet Celik
BACKGROUND: Primary ovarian fibrosarcomas are rare and usually observed in perimenopausal and postmenopausal women. Up-to-date, there are only 3 reports of ovarian fibrosarcoma in childhood and adolescence in English literature. In this report, we aimed to present the first pediatric case with advanced staged primary ovarian fibrosarcoma and to compare with previous cases. CASE: A 14-year-old teenage girl was admitted due to a giant abdominal mass. Imaging techniques revealed a giant heterogeneous and vascular ovarian mass...
May 11, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28499392/experimental-tumor-growth-of-canine-osteosarcoma-cell-line-on-chick-embryo-chorioallantoic-membrane-in-vivo-studies
#10
Magdalena Walewska, Izabella Dolka, Anna Małek, Anna Wojtalewicz, Agata Wojtkowska, Artur Żbikowski, Roman Lechowski, Katarzyna Zabielska-Koczywąs
The chick embryo chorioallantoic membrane (CAM) model is extensively used in human medicine in preclinical oncological studies. The CAM model has several advantages: low cost, simple experimental approach, time saving and following "3R principles". Research has shown that the human osteosarcoma cell lines U2OS, MMNG-HOS, and SAOS can form tumors on the CAM. In veterinary medicine, this has been described only for feline fibrosarcomas, feline mammary carcinomas and canine osteosarcomas. However, in case of canine osteosarcomas, it has been shown that only non-adherent osteosarcoma stem cells isolated from KTOSA5 and CSKOS cell lines have the ability to form microtumors on the CAM after an incubation period of 5 days, in contrast to adherent KTOSA5 and CSKOS cells...
May 12, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28493851/impedimetric-analysis-of-the-effect-of-decellularized-porcine-heart-scaffold-on-human-fibrosarcoma-endothelial-and-cardiomyocyte-cell-lines
#11
Henrik Bäcker, Livia Polgár, Pal Soós, Eszter Lajkó, Orsolya Láng, Bela Merkely, Gabor Szabó, Pascal M Dohmen, Alexander Weymann, Laszlo Kőhidai
BACKGROUND Experiments on porcine heart scaffold represent significant assays in development of immunoneutral materials for cardiac surgery. Characterization of cell-cell and cell-scaffold interactions is essential to understand the homing process of cardiac cells into the scaffolds. MATERIAL AND METHODS In the present study, the highly sensitive and real-time impedimetric technique of xCELLigence SP was used to monitor cell adhesion, which is the key process of recellularization in heart scaffolds. Our objectives were: (i) to characterize the effect of decellularized porcine heart scaffold on cell adhesion of human cardiovascular cells potentially used in the recellularization process; and (ii) to investigate cell-extracellular matrix element interactions for building artificial multi-layer systems, applied as cellular models of recellularization experiments...
May 11, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28492759/ameloblastic-fibrosarcoma-a-case-report-and-literature-review
#12
João Paulo Silva Servato, Paulo Rogério de Faria, Cássio Vinhadelli Ribeiro, Sergio Vitorino Cardoso, Paulo Rogério de Faria, Fernando Luiz Dias, Ana Lúcia Amaral Eisenberg, Adriano Mota Loyola
Here is described a case of ameloblastic fibrosarcoma (AFS) affecting the posterior mandible of a woman who was treated surgically and recovered without signs of recurrence or metastasis after 12 years of follow-up. Tumor sections were immunostained for cell cycle, epithelial and mesenchymal markers. Immunohistochemical analysis evidenced high Ki-67 positivity in stromal cells (mean of 20.9 cells/High power field). Epithelial cells displayed strong positivity for p53, p63 and cytokeratin 19. In addition to the case report, a systematic review of current knowledge is presented on the AFS's clinical-demographic features and prognostic factors...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28487936/protein-therapy-using-mafa-fused-to-a-polyarginine-transduction-domain-attenuates-glucose-levels-of-streptozotocin%C3%A2-induced-diabetic-mice
#13
Jun Lu, Lingjing Lin, Huiyue Dong, Xin Meng, Fang Fang, Qinghua Wang, Lianghu Huang, Jianming Tan
Ectopic expression of musculo aponeurotic fibrosarcoma BZIP transcription factor (Maf) A, has previously been demonstrated to induce insulin expression in non‑β‑cell lines. Protein transduction domains acting as an alternative delivery strategy may deliver heterogeneous proteins into cells. A sequence of 11 arginine residues (11R) has been demonstrated to act as a particularly efficient vector to introduce proteins into various cell types. The present study constructed 11R‑fused MafA to achieve transduction of the protein into cellular membranes and subsequently examined the therapeutic effect of the MafA‑11R protein in streptozotocin‑induced diabetes...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28484076/sarcoma-eradication-by-doxorubicin-and-targeted-tnf-relies-upon-cd8-t-cell-recognition-of-a-retroviral-antigen
#14
Philipp Probst, Janine Kopp, Annette Oxenius, Mario P Colombo, Danilo Ritz, Tim Fugmann, Dario Neri
Antibody-cytokine complexes may offer new tools to treat cancer. Here we show how TNF-linked antibodies, which recognize tumor-selective splice isoforms of fibronectin (F8-TNF), can be exploited to eradicate sarcomas in immunocompetent mice. We treated mice bearing WEHI-164 fibrosarcoma with a combination of F8-TNF and doxorubicin, curing the majority of treated animals (29/37). Notably, cured mice were resistant to re-challenge not only by WEHI-164 cells but also heterologous C51 or CT26 colorectal tumor cells in a CD8+ T cell-dependent process...
May 8, 2017: Cancer Research
https://www.readbyqxmd.com/read/28478739/translocation-renal-cell-carcinoma-in-a-child-previously-treated-for-infantile-fibrosarcoma
#15
Jing Ma, Ci Pan, Minzhi Yin
We report a child who developed a TFE3/Xp11.2 translocation renal cell carcinoma (RCC) when he was 3 years and 3 months old, after previous treatment for infantile fibrosarcoma (IFS). When he was 3 months old, a left axilla mass has been detected, which was tan and solid, was 1.5 cm in greatest dimension, and composed of sheets of spindle cells that was positive for vimentin and fibronectin. Fluorescence in situ hybridization showed positive result in ETV6 gene rearrangements. The final diagnosis was IFS...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28471131/primary-ovarian-fibrosarcoma-a-case-report-and-review-of-the-literature
#16
Ozhan Ozdemır, Mustafa Erkan Sarı, Ertugrul Sen, Bunyamin Ugur Ilgın, Servet Gurescı, Cemal Resat Atalay
OBJECTIVES: Primary ovarian fibrosarcomas are extremely rare neoplasms, and only 50 cases have been reported in the English literature. Diagnosis can be difficult because of this condition's rarity, and other similar appearing mesenchymal lesions should be ruled out. METHODS: A 50-year-old postmenopausal woman came to our hospital because of abdominopelvic pain. Ultrasonography revealed a 41x33 mm heterogeneous solid mass in the right ovary. Total blood counts, biochemical parameters, and tumor markers were within normal ranges...
July 2016: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/28454214/genome-wide-analysis-of-gynecologic-cancer-the-cancer-genome-atlas-in-ovarian-and-endometrial-cancer
#17
Moito Iijima, Kouji Banno, Ryuichiro Okawa, Megumi Yanokura, Miho Iida, Takashi Takeda, Haruko Kunitomi-Irie, Masataka Adachi, Kanako Nakamura, Kiyoko Umene, Yuya Nogami, Kenta Masuda, Eiichiro Tominaga, Daisuke Aoki
Cancer typically develops due to genetic abnormalities, but a single gene abnormality cannot completely account for the onset of cancer. The Cancer Genome Atlas (CGA) project was conducted for the cross-sectional genome-wide analysis of numerous genetic abnormalities in various types of cancer. This approach has facilitated the identification of novel AT-rich interaction domain 1A gene mutations in ovarian clear cell carcinoma, frequent tumor protein 53 (TP53) gene mutations in high-grade ovarian serous carcinoma, and Kirsten rat sarcoma and B-rapidly accelerated fibrosarcoma proto-oncogene, serine/threonine kinase gene mutations in low-grade ovarian serous carcinoma...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454211/targeting-the-ras-raf-mek-erk-pathway-in-hepatocellular-carcinoma
#18
Sufang Yang, Guohua Liu
Although the biological basis of hepatocellular carcinoma (HCC) remains unclear, effective treatments and improvement of the survival rate remain worthwhile research goals. Abnormal protein signaling pathways contributing to uncontrolled cell proliferation, differentiation, survival and apoptosis are biomarkers of the carcinogenic process. Certain mutated components or overexpression of the rat sarcoma virus (Ras)/rapidly accelerated fibrosarcoma (Raf)/mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) signaling pathway are increasingly being studied in HCC carcinogenesis...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28447903/low-grade-sinonasal-sarcoma-with-neural-and-myogenic-features-a-recently-discovered-entity-with-unique-features-and-diagnostic-challenge
#19
Meriam Triki, Lobna Ayadi
Low-grade sinonasal sarcoma with neural and myogenic features is an entity recently described in the literature. Little is known about its etiopathogenesis, natural history, or optimal treatment. In fact, it has relatively unique findings: it has a distinctive cytogenetic signature, and it expresses both smooth muscle actin and S100 protein. However, its diagnosis is challenging on biopsies showing negative staining for these 2 markers. The differential diagnoses include fibrosarcoma, malignant peripheral nerve sheath tumors, and other benign and malignant lesions...
May 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28446539/transient-mechanical-strain-promotes-the-maturation-of-invadopodia-and-enhances-cancer-cell-invasion-in-vitro
#20
Alexander N Gasparski, Snehal Ozarkar, Karen A Beningo
Cancer cell invasion is influenced by various biomechanical forces found within the microenvironment. We have previously found that invasion is enhanced in fibrosarcoma cells when transient mechanical stimulation is applied within an in vitro mechano-invasion assay. This enhancement of invasion is dependent on cofilin, a known regulator of invadopodia maturation. Invadopodia are actin-rich structures present in invasive cancer cells that are enzymatically active and degrade the surrounding extracellular matrix to facilitate invasion...
April 26, 2017: Journal of Cell Science
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