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https://www.readbyqxmd.com/read/28107196/wilms-tumor-gene-1-silencing-inhibits-proliferation-of-human-osteosarcoma-mg-63-cell-line-by-cell-cycle-arrest-and-apoptosis-activation
#1
Adriana Carol Eleonora Graziano, Venera Cardile, Rosanna Avola, Nunzio Vicario, Carmela Parenti, Lucia Salvatorelli, Gaetano Magro, Rosalba Parenti
Wilms' tumor gene 1 (WT1) plays complex roles in tumorigenesis, acting as tumor suppressor gene or an oncogene depending on the cellular context. A high WT1 expression level was described in various types of human bone and soft-tissue sarcomas, including osteosarcoma (OS), but its function in carcinogenesis is not yet well understood. This study investigated WT1 both in human OS tissues and in human OS MG-63 cell line in which WT1 gene is up-regulated. The results demonstrated that WT1 is expressed in 50% of human OS cases...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28105885/denosumab-in-patients-with-giant-cell-tumor-of-bone-in-norway-results-from-a-nationwide-cohort
#2
Kjetil Boye, Nina Louise Jebsen, Olga Zaikova, Heidi Knobel, Ayca M Løndalen, Clement S Trovik, Odd R Monge, Kirsten Sundby Hall
BACKGROUND: Denosumab is a relatively new treatment option for patients with giant-cell tumor of bone (GCTB). The purpose of this study was to report the results for patients treated in Norway. MATERIALS AND METHODS: Patients treated with denosumab for GCTB were identified from the clinical databases at the Norwegian sarcoma reference centers. Data were retrieved from the clinical databases and supplemented by retrospective review of patient records. Denosumab was given as a subcutaneous injection every 4 weeks with loading doses on day 8 and 15 in cycle 1...
January 20, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28105636/cost-utility-of-osteoarticular-allograft-versus-endoprosthetic-reconstruction-for-primary-bone-sarcoma-of-the-knee-a-markov-analysis
#3
Robert J Wilson, Lina M Sulieman, Jacob P VanHouten, Jennifer L Halpern, Herbert S Schwartz, Clinton J Devin, Ginger E Holt
BACKGROUND: The most cost-effective reconstruction after resection of bone sarcoma is unknown. The goal of this study was to compare the cost effectiveness of osteoarticular allograft to endoprosthetic reconstruction of the proximal tibia or distal femur. METHODS: A Markov model was used. Revision and complication rates were taken from existing studies. Costs were based on Medicare reimbursement rates and implant prices. Health-state utilities were derived from the Health Utilities Index 3 survey with additional assumptions...
January 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28105233/mir-574-3p-acts-as-a-tumor-promoter-in-osteosarcoma-by-targeting-smad4-signaling-pathway
#4
Haidong Xu, Xiaozhou Liu, Juan Zhou, Xiaoyun Chen, Jianning Zhao
Human osteosarcoma is the most common primary bone malignancy sarcoma that affects primarily children and people <20 years old. In the present study, it was demonstrated that miR-574-3p was downregulated in human osteosarcoma U2OS, SAOS and MG63 cells lines as well as in osteosarcoma tissue compared with the normal tissues. Downregulation of miR-574-3p by antisense miR-574-3p, inhibited cell growth and induced cell apoptosis. Overexpression of miR-574-3p by transfection with miR-574-3p mimics promoted the growth of U2OS cells...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101733/3d-absorbed-dose-distribution-estimated-by-monte-carlo-simulation-in-radionuclide-therapy-with-a-monoclonal-antibody-targeting-synovial-sarcoma
#5
David Sarrut, Jean-Noël Badel, Adrien Halty, Gwenaelle Garin, David Perol, Philippe Cassier, Jean-Yves Blay, David Kryza, Anne-Laure Giraudet
BACKROUND: Radiolabeled OTSA101, a monoclonal antibody targeting synovial sarcoma (SS) developed by OncoTherapy Science, was used to treat relapsing SS metastases following a theranostic procedure: in case of significant (111)In-OTSA101 tumor uptake and favorable biodistribution, patient was randomly treated with 370/1110 MBq (90)Y-OTSA101. Monte Carlo-based 3D dosimetry integrating time-activity curves in VOI was performed on (111)In-OTSA101 repeated SPECT/CT. Estimated absorbed doses (AD) in normal tissues were compared to biological side effects and to the admitted maximal tolerated absorbed dose (MTD) in normal organs...
December 2017: EJNMMI Physics
https://www.readbyqxmd.com/read/28099230/primary-orbital-chondromyxoid-fibroma-a-rare-case
#6
Martin G Mullen, Marie Somogyi, Sean P Maxwell, Vikram Prabhu, David K Yoo
A 56-year-old male with history of chronic sinusitis was found to have a 3 cm left orbital lesion on CT. Subsequent MRI demonstrated a multilobulated enhancing soft tissue lesion at the superotemporal region of the left orbit. Initial biopsy was reported as a low-grade sarcoma. On further evaluation, a consensus was made that the lesion was likely a benign mixed mesenchymal type tumor but should nonetheless be surgically removed. Left lateral orbitotomy was performed which revealed a tumor originating in the lateral orbital bone with segments eroding through the wall of the orbit...
January 17, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28077014/factors-associated-with-reduced-functional-outcome-and-quality-of-life-in-patients-having-limb-sparing-surgery-for-soft-tissue-sarcomas-a-national-multicenter-study-of-128-patients
#7
Casper Saebye, Hanna M Fugloe, Tine Nymark, Akmal Safwat, Michael M Petersen, Thomas Baad-Hansen, Anders Krarup-Hansen, Johnny Keller
BACKGROUND: Limb-sparing surgery for sarcomas has become possible in most cases. However, the impact of the procedure on the functional outcome has only been investigated in a few studies. The aim of this study has been to identify tumor- and patient-related factors associated with reduced functional outcome and quality of life after limb-sparing surgery in soft tissue sarcoma patients. MATERIAL AND METHODS: In total, 128 patients (mean age = 58, female/male = 54/74) who were treated with limb-sparing surgery without bone resection for soft tissue sarcomas in Denmark during the period 1 January 2009 to 31 December 2011 were included...
January 12, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28069064/pasteurized-autograft-reconstruction-after-resection-of-periacetabular-malignant-bone-tumours
#8
Xiaoning Guo, Xiaoyang Li, Tang Liu, Cijun Shuai, Qing Zhang
BACKGROUND: The treatment of periacetabular malignant bone tumours is challenging. Many methods of reconstruction after internal hemipelvectomy have been reported and each method has its own limitations. The aim of this study was to evaluate the oncological and functional outcomes of pasteurized autograft reconstruction after resection of periacetabular malignant bone tumours. METHODS: Ten patients (six male, four female) with periacetabular malignant tumours, who underwent resection and reconstruction with pasteurized autograft, were retrospectively reviewed...
January 9, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28068876/tissue-engineered-model-of-human-osteolytic-bone-tumor
#9
Aranzazu Villasante, Alessandro Marturano, Samuel T Robinson, Zen Liu, X Edward Guo, Gordana Vunjak-Novakovic
Ewing's sarcoma (ES) is a poorly differentiated pediatric tumor of aggressive behavior characterized by propensity to metastasize to bone. Interactions between the tumor and bone cells orchestrate a vicious cycle in which tumor cells induce osteoclast differentiation and activation to cause osteolytic lesions, broken bones, pain and hypercalcemia. The lack of controllable models that can recapitulate osteolysis in ES impedes the development of new therapies and limits our understanding of how tumor cells invade bone...
January 9, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28056253/-updates-and-interpretations-of-2017-nccn-guidelines-for-bone-cancer
#10
X H Niu
The NCCN guidelines for bone cancer are generally updated 1-2 times one year, the contents include diagnosis, treatment guidelines and the latest developments. The latest version of 2017 guideline of bone cancer is released recently. It includes multidisciplinary treatment of common primary bone cancer including diagnosis, surgery, drugs and radiotherapy. It covers osteosarcoma, chondrosarcoma, Ewing's sarcoma, giant cell tumor of bone and chordoma. In this article, the core contents and the updates are illustrated...
January 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28044936/nano-delivery-in-pediatric-tumors-looking-back-moving-forward
#11
Marta Colletti, Virginia Di Paolo, Angela Galardi, Giuseppe Maria Milano, Angela Mastronuzzi, Franco Locatelli, Angela Di Giannatale
Recent advances in the treatment of pediatric tumors led to an improvement of survival in this population. As a result, many pediatric survivors experience long-term effects that impact their quality of life. Therefore, it is extremely important to identify new treatment approaches that may target the tumor minimizing the drug-related side effects. Over the past 10 years, remarkable advances in nanomedicine have provided several potential tools for cancer treatment. Recently, there has been a growing interest towards therapeutic nanocarriers in the pediatric field, since they represent a new strategy to enhance the drug efficacy and reduce the toxicity...
January 2, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28025760/targeting-specificity-protein-1-transcription-factor-and-survivin-using-tolfenamic-acid-for-inhibiting-ewing-sarcoma-cell-growth
#12
Sagar Shelake, Umesh T Sankpal, W Paul Bowman, Matthew Wise, Anish Ray, Riyaz Basha
Transcription factor Specificity protein 1 (Sp1) and its downstream target survivin (inhibitor of apoptosis protein), play major roles in the pathogenesis of various cancers. Ewing Sarcoma (ES) is a common soft tissue/bone tumor in adolescent and young adults. Overexpression of survivin is also linked to the aggressiveness and poor prognosis of ES. Small molecule Tolfenamic acid (TA) inhibits Sp1 and survivin in cancer cells. In this investigation, we demonstrate a strategy to target Sp1 and survivin using TA and positive control Mithramycin A (Mit) to inhibit ES cell growth...
December 26, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/28025076/unusual-extramedullary-hematopoietic-neoplasms-in-lymph-nodes
#13
Vanessa D Dayton, Sarah J Williams, Robert W McKenna, Michael A Linden
Myeloid, plasma cell, and lymphoblastic neoplasms are expected findings in bone marrow but are much less commonly diagnosed as primary processes in lymph nodes. The objective of this review is to aid pathologists in recognizing common hematopoietic neoplasms in the unusual setting of initial presentation in lymph nodes. Review of historical background and evolution of testing strategies is presented in order to improve understanding of the need for accurate diagnosis and classification using current nomenclature...
December 23, 2016: Human Pathology
https://www.readbyqxmd.com/read/28009608/fosb-is-a-useful-diagnostic-marker-for-pseudomyogenic-hemangioendothelioma
#14
Yin P Hung, Christopher D M Fletcher, Jason L Hornick
Pseudomyogenic (epithelioid sarcoma-like) hemangioendothelioma is a distinctive vascular neoplasm of intermediate biological potential with a predilection for young adults and frequent multifocal presentation. Pseudomyogenic hemangioendothelioma is characterized by loose fascicles of plump spindled and epithelioid cells with abundant eosinophilic cytoplasm and coexpression of keratins and endothelial markers. Recently, a SERPINE1-FOSB fusion has been identified as a consistent genetic alteration in pseudomyogenic hemangioendothelioma...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28004130/multifocal-bone-and-bone-marrow-lesions-in-children-mri-findings
#15
Maria Raissaki, Stelios Demetriou, Konstantinos Spanakis, Christos Skiadas, Nikolaos Katzilakis, Emmanouil G Velivassakis, Eftichia Stiakaki, Apostolos H Karantanas
Polyostotic bone and bone marrow lesions in children may be due to various disorders. Radiographically, lytic lesions may become apparent after loss of more than 50% of the bone mineral content. Scintigraphy requires osteoblastic activity and is not specific. MRI may significantly contribute to the correct diagnosis and management. Accurate interpretation of MRI examinations requires understanding of the normal conversion pattern of bone marrow in childhood and of the appearances of red marrow rests and hyperplasia...
December 21, 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/28003984/incidence-of-orbital-conjunctival-and-lacrimal-gland-malignant-tumors-in-usa-from-surveillance-epidemiology-and-end-results-1973-2009
#16
Waleed M Hassan, Mohamed S Bakry, Housam M Hassan, Ahmad S Alfaar
AIM: To determine the types and incidence of tumors affecting the orbit, conjunctiva and lacrimal glands and to study the trend line of these tumors in the United States from 1973 to 2009. METHODS: We used the publicly available Surveillance, Epidemiology and End Results (SEER) database registries to determine the incidence rates. Age was adjusted to the 2000 US Standard Population. Patients were stratified according to age group, gender, race and histological grouping of tumor lesions...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28002805/expression-of-psma-in-tumor-neovasculature-of-high-grade-sarcomas-including-synovial-sarcoma-rhabdomyosarcoma-undifferentiated-sarcoma-and-mpnst
#17
Birthe Heitkötter, Marcel Trautmann, Inga Grünewald, Martin Bögemann, Kambiz Rahbar, Heidrun Gevensleben, Eva Wardelmann, Wolfgang Hartmann, Konrad Steinestel, Sebastian Huss
AIMS: PSMA (prostate specific membrane antigen) is physiologically expressed in normal prostate tissue. It is overexpressed in prostate cancer cells and has been suggested as a target for antibody-based radioligand therapy. As PSMA expression so far has not been systematically analyzed in soft tissue tumors, the current study aims at investigating a large cohort of different subtypes. METHODS AND RESULTS: Immunohistochemistry was used to detect PSMA expression in 779 samples of soft tissue tumors and Ewing sarcoma as a primary bone malignancy...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27995558/is-there-benefit-to-free-over-pedicled-vascularized-grafts-in-augmenting-tibial-intercalary-allograft-constructs
#18
Marco Manfrini, Srimanth Bindiganavile, Ferhat Say, Marco Colangeli, Laura Campanacci, Massimiliano Depaolis, Massimo Ceruso, Davide Donati
BACKGROUND: Intercalary reconstruction of tibial sarcomas with vascularized fibula autografts and massive bone allografts is reliable with predictable long-term results. However, inadequate data exist comparing free and pedicled vascularized fibula autografts in combination with a massive bone allograft in patients undergoing intercalary tibia reconstructions. QUESTIONS/PURPOSES: Among patients undergoing large-segment intercalary allografting, we sought to compare supplemental free vascularized fibular autografts with supplemental pedicled vascularized fibular autografts, in terms of (1) oncologic results, (2) complications associated with surgery, (3) Musculoskeletal Tumor Society (MSTS) scores, and (4) surgical time...
December 19, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27955733/management-of-desmoplastic-small-round-cell-tumor
#19
Andrea Hayes-Jordan, Michael P LaQuaglia, Shakeel Modak
Desmoplastic small round cell tumor (DSRCT) is a soft tissue sarcoma of mesenchymal cell origin that typically presents with multiple intra-abdominal tumors and exhibits a multi-phenotypic pattern of immunohistochemical staining. The specific organ or tissue type of origin has yet to be identified. DSRCT rarely arises as a singular tumor in the abdomen; in most cases, there are dozens to hundreds of abdominal peritoneal tumors that are detected on diagnosis. One very large dominant mass is usually present in the omentum, with an additional one or two large conglomerates of tumors in the pelvis and right peritoneum, respectively...
October 2016: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/27939398/intradural-extramedullary-ewing-s-sarcoma-a-case-report-and-review-of-the-literature
#20
Konstantinos Paterakis, Alexandros Brotis, Anastasia Tasiou, Vasiliki Kotoula, Eftychia Kapsalaki, Marianna Vlychou
INTRODUCTION: Extra-skeletal Ewing's sarcomas are very rare lesions to the spine surgeon, with the intradural, extramedullary lesions being even rarer. Herein we present a patient with an intradural, extramedullary form of Ewing's sarcoma and review the relevant literature. The medical records, operative reports, radiographical studies and histological examinations of a single patient are retrospectively reviewed. CASE REPORT: A 31-year old male presented with back-pain, right-leg progressive paraparesis, and inability to walk...
November 30, 2016: Neurologia i Neurochirurgia Polska
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