keyword
MENU ▼
Read by QxMD icon Read
search

Ewing sarcoma

keyword
https://www.readbyqxmd.com/read/28521819/linking-hypoxia-dna-damage-and-proliferation-in-multicellular-tumor-spheroids
#1
Stephen Riffle, Ram Naresh Pandey, Morgan Albert, Rashmi S Hegde
BACKGROUND: Multicellular Tumor Spheroids are frequently used to mimic the regionalization of proliferation and the hypoxic environment within avascular tumors. Here we exploit these features to study the activation of DNA damage repair pathways and their correlation to developing hypoxia. METHODS: Activation of DNA damage repair markers, proliferation, cell death, glycogen accumulation and developing hypoxia were investigated using immunofluorescence, immuno-histochemistry, EdU incorporation, Western blots, COMET assays, and pharmacological agents in A673 Ewing sarcoma spheroids and monolayer cultures...
May 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28521631/immunohistochemical-profile-of-myc-protein-in-pediatric-small-round-blue-cell-tumors
#2
Karen M Chisholm, Chandra Krishnan, Amy Heerema-McKenney, Yasodha Natkunam
Deregulation of MYC oncoprotein in cancers can result from multiple oncogenic mechanisms. Although MYC translocations define Burkitt lymphoma and MYC protein expression is a poor prognostic factor in undifferentiated neuroblastomas, the distribution of MYC protein (c-MYC) across other pediatric small round blue cell tumors (SRBCT) has not been well characterized. We undertook this study to assess MYC protein expression in a large cohort of pediatric lymphomas, sarcomas, and other SRBCT. Tissue microarrays containing 302 SRBCT were successfully evaluated by immunohistochemistry using anti-MYC clone Y69, with nuclear positivity scored as 0%, 1%-25%, 26%-50%, 51%-75%, or 76%-100%...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28509141/primary-ewing-sarcoma-of-the-kidney-a-case-report-and-treatment-review
#3
Muhammad Sadiq, Iftikhar Ahmad, Jamila Shuja, Khushnaseeb Ahmad
Ewing sarcomas/primitive neuroectodermal tumors (ES/PNET) of the kidney are rarely found high-grade malignant tumors, offering poor prognosis. Although established treatment guidelines for ES of kidney are scarce, a multi-modality treatment approached is typically implemented. Herein, we report a 14-year-old female patient with ES of right kidney. Post-nephrectomy disease recurrence was treated with chemotherapy (i.e., vincristine, doxorubicin and cyclophosphamide); marked reduction in tumor size (i.e., from 18...
April 21, 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28508996/hyalinizing-clear-cell-carcinoma-of-the-bronchus
#4
Maryam Shahi, Michelle Dolan, Paari Murugan
Hyalinizing clear cell carcinoma (HCCC) is an uncommon low-grade minor salivary gland neoplasm that usually arises in the head and neck region. We report a 55-year-old man who presented with a 2.5 cm lung mass that was partially obstructing the right bronchus intermedius. The tumor consisted of cords and nests of clear and eosinophilic cells in a hyalinized stromal background. The neoplastic cells expressed cytokeratin (CK) 7, CK 5/6, high-molecular weight cytokeratin (34BE12), p63 and p40, while TTF-1, napsin A, CK20, S100, smooth muscle actin, synaptophysin and chromogranin were negative...
May 16, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28507811/adoptive-natural-killer-cell-therapy-is-effective-in-reducing-pulmonary-metastasis-of-ewing-sarcoma
#5
Alexander A Tong, Hasan Hashem, Saada Eid, Frederick Allen, Daniel Kingsley, Alex Y Huang
The survival of patients with metastatic or relapsed Ewing sarcoma (ES) remains dismal despite intensification of combination chemotherapy and radiotherapy, precipitating the need for novel alternative therapies with minimal side effects. Natural killer (NK) cells are promising additions to the field of cellular immunotherapy. Adoptive NK cell therapy has shown encouraging results in hematological malignancies. Despite these initial promising successes, however, NK cell therapy for solid tumors remains to be investigated using in vivo tumor models...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28506520/the-evolving-role-of-proton-beam-therapy-for-sarcomas
#6
S Frisch, B Timmermann
As an alternative to conventional photon-based radiotherapy, radiation with protons is recognised to offer considerable advantages. Today, central nervous system tumours, various sarcomatous tumours, childhood cancer and head and neck tumours are commonly treated with proton therapy. This review evaluates current data from clinical and dosimetric trials on the treatment of selected sarcomatous tumours like rhabdomyosarcoma, osteosarcoma, chordoma, chondrosarcoma and Ewing sarcoma. Special considerations for paediatric tumours and future prospects of proton therapy are outlined...
May 12, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/28494941/efficient-recreation-of-t-11-22-ewsr1-fli1-in-human-stem-cells-using%C3%A2-crispr-cas9
#7
Raul Torres-Ruiz, Marta Martinez-Lage, Maria C Martin, Aida Garcia, Clara Bueno, Julio Castaño, Juan C Ramirez, Pablo Menendez, Juan C Cigudosa, Sandra Rodriguez-Perales
Efficient methodologies for recreating cancer-associated chromosome translocations are in high demand as tools for investigating how such events initiate cancer. The CRISPR/Cas9 system has been used to reconstruct the genetics of these complex rearrangements at native loci while maintaining the architecture and regulatory elements. However, the CRISPR system remains inefficient in human stem cells. Here, we compared three strategies aimed at enhancing the efficiency of the CRISPR-mediated t(11;22) translocation in human stem cells, including mesenchymal and induced pluripotent stem cells: (1) using end-joining DNA processing factors involved in repair mechanisms, or (2) ssODNs to guide the ligation of the double-strand break ends generated by CRISPR/Cas9; and (3) all-in-one plasmid or ribonucleoprotein complex-based approaches...
May 9, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28486360/ovarian-mucinous-cystadenoma-after-ovarian-graft
#8
Carole Fajau-Prevot, Yann Tanguy Le Gac, Christine Chevreau, Clémentine Cohade, Nicolas Gatimel, Jean Parinaud, Roger Leandri
BACKGROUND: Freezing strips of ovarian cortex before chemotherapy followed by transplantation is an experimental method to preserve fertility for reproductive-aged women with cancer. We report a case of a cancer patient who developed a mucinous cystadenoma in a grafted piece of ovarian cortex. CASE: A 32-year-old woman with a Ewing sarcoma had ovarian cryopreservation using cortical strip freezing before receiving chemotherapy. Five years later she had no ovarian function, and the strips were thawed and grafted back onto the ovary...
May 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28477224/bone-tumors-of-the-pediatric-foot-imaging-appearances
#9
Pablo Caro-Domínguez, Oscar M Navarro
Tumors of the foot are rare in children. This review illustrates radiographic, CT and MR imaging findings of foot bone tumors in children based on all cases presented in a tertiary pediatric hospital during the 15-year period of 1999-2014. This search revealed 155 tumors of the foot, 72 of the bones and 83 of the soft tissues. Osteochondroma, bone cyst and fibrous dysplasia were the most frequent benign bone lesions. Ewing sarcoma was the most common malignant osseous tumor. Some tumors showed higher prevalence in certain age ranges and others showed predilection for specific bones...
May 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28477025/eribulin-alone-or-in-combination-with-the-plk1-inhibitor-bi-6727-triggers-intrinsic-apoptosis-in-ewing-sarcoma-cell-lines
#10
Lilly Magdalena Weiß, Manuela Hugle, Simone Fulda
In this study, we investigated the molecular mechanisms of eribulin-induced cell death and its therapeutic potential in combination with the PLK1 inhibitor BI 6727 in Ewing sarcoma (ES). Here, we show that eribulin triggers cell death in a dose-dependent manner in a panel of ES cell lines. In addition, eribulin at subtoxic, low nanomolar concentrations acts in concert with BI 6727 to induce cell death and to suppress long-term clonogenic survival. Mechanistic studies reveal that eribulin monotherapy at cytotoxic concentrations and co-treatment with eribulin at subtoxic concentrations together with BI 6727 arrest cells in the M phase of the cell cycle prior to the onset of cell death...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28474974/primary-spinal-epidural-cic-dux4-undifferentiated-sarcoma-in-a-child
#11
John E Donahue, Evgeny Yakirevich, Shan Zhong, Diana O Treaba, Nelli S Lakis, Siraj M Ali, Suzanne M de la Monte, Shamlal Mangray
Primitive round- or spindle-cell EWSR1-negative undifferentiated sarcomas harboring CIC-DUX4 gene fusion are the most common form of Ewing-like sarcomas. These tumors primarily occur in peripheral soft tissues, but examples have been described within viscera and the brain. As far as we are aware, CIC-DUX4 positive primary epidural spinal sarcoma has not been reported. Herein, we describe a T5-T6 epidural tumor in a 15-year-old girl in which many neoplastic cells had moderate and focally abundant cytoplasm, including plasmacytoid or rhabdoid cells, rather than the more common Ewing-like morphology described in the majority of such tumors...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28473430/cytogenetically-confirmed-primary-ewing-s-sarcoma-of-the-pancreas
#12
Ankush Golhar, Samrat Ray, Beate Haugk, Suresh Kumar Singhvi
Ewing's sarcoma is a highly aggressive malignant tumour most commonly affecting long bones in children and adolescents. It is part of the Ewing's sarcoma family of tumours (ESFTs) that also include peripheral primitive neuroectodermal tumour and Askin's tumours. ESFTs share common cytogenetic aberrations, antigenic profiles and proto-oncogene expression with an overall similar clinical course. In 99% of ESFTs, genetic translocation with molecular fusion involves the EWSR1 gene on 22q12. Approximately 30% of ESFTs are extraosseous, most commonly occurring in the soft tissues of extremities, pelvis, retroperitoneum and chest wall...
May 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28472972/primary-ewing-s-sarcoma-primitive-neuroectodermal-tumor-of-the-ileum-case-report-of-a-16-year-old-chinese-female-and-literature-review
#13
Teng Li, Fang Zhang, Yarui Cao, Shoubin Ning, Yongmin Bi, Weicheng Xue, Li Ren
BACKGROUND: Ewing's sarcoma (ES) and primitive neuroectodermal tumors (PNET) are closely related tumors. Although soft tissue ES/PNET are common in clinical practice, they are rare in the small intestine. Because of the absence of characteristic clinical symptoms, they are easily misdiagnosed as other benign or malignant diseases. CASE PRESENTATION: Here, we present the case of a 16-year-old female who complained of anemia and interval hematochezia. Her serum test results showed only a slight elevation of CA-125 and a low level of hemoglobin...
May 4, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28472564/entering-the-double-digits-ewing-sarcoma-in-adult-maxilla
#14
Mala Kamboj, Anju Devi, Virendra Singh, Sunita Singh
Ewing sarcoma is a rare malignant pediatric sarcoma of bone and soft tissues, which is more unusual in head and neck region. Although the exact histogenesis is still unknown, various cells have been proposed as cells of origin namely, endothelial, hematopoietic, fibroblastic, mesenchymal stem cells or neural derived mesenchymal stem cells. ES is more common in younger age group and among the gnathic bones, mandible is affected more than maxilla. This paper presents the first case of Ewing Sarcoma in the maxilla being reported in the adult age group from India and among the very few reported worldwide...
May 2017: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/28469330/profile-of-primary-pediatric-brain-and-spinal-cord-tumors-from-north-india
#15
Nadia Shirazi, Meenu Gupta, Nowneet Kumar Bhat, Braham Prakash Kalra, Ranjit Kumar, Manju Saini
BACKGROUND AND OBJECTIVE: The study was carried out to find the profile of pediatric brain and spinal cord tumors during 2006-2015 in a tertiary referral center of North India. MATERIALS AND METHODS: It was a retrospective medical record-based observational study. All children <18 years of age with confirmed histopathological diagnosis of cancer were included in the study. RESULTS: Central nervous system (CNS) tumors constituted 5.6% of all pediatric solid malignancies in our hospital...
January 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28462848/outcome-of-resectable-pediatric-ewing-sarcoma-of-the-ribs
#16
Gehad Ahmed, Manal Zamzam, Mohamed S Zaghloul, Ahmed Kamel, Ranin Soliman, Iman Zaky, Asmaa Salama, Nehal Kamal, Maged ElShafiey
PURPOSE: Was to evaluate the outcome of multimodality treatment in resectable primary Ewing sarcoma/primitive neuroectodermal tumor ES/PNET of the ribs and role of thoracoscopy in facilitating resection of these tumors. PATIENTS AND METHODS: This was a retrospective study including 22 patients with primary ES/PNET of the ribs surgically treated at Children's Cancer Hospital Egypt (CCHE) between January 2008 until the end of December 2014. RESULTS: Median age was 8...
April 24, 2017: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/28454538/transcriptomic-and-proteomic-insight-into-the-effects-of-a-defined-european-mistletoe-extract-in-ewing-sarcoma-cells-reveals-cellular-stress-responses
#17
M Twardziok, D Meierhofer, S Börno, B Timmermann, S Jäger, Sengül Boral, A Eggert, C I Delebinski, G Seifert
BACKGROUND: The hydrophobic triterpenes, oleanolic and betulinic acid as well as the hydrophilic mistletoe lectins and viscotoxins possess anticancer properties. They do all occur in combination in European mistletoe (Viscum album L.). Commercial Viscum album L. extracts are aqueous, excluding the insoluble triterpenes. We have previously shown that mistletoe lectins and triterpene acids are effective against Ewing sarcoma in vitro, ex vivo and in vivo. METHODS: We recreated a total mistletoe effect (viscumTT) by combining an aqueous extract (viscum) and a triterpene extract (TT) solubilised with cyclodextrins and analysed the effects of viscumTT and the single extracts on TC-71 Ewing sarcoma cells in vitro by transcriptomic and proteomic profiling...
April 28, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28452858/primary-bone-anaplastic-large-cell-lymphoma-masquerading-as-ewing-sarcoma-diagnosis-by-anchored-multiplex-pcr
#18
Susan Swee-Shan Hue, Prasad Iyer, Luke Han Wei Toh, Sudhanshi Jain, Enrica Ee Kar Tan, Kesavan Sittampalam, Derrick Wen Quan Lian, Kenneth Tou En Chang
A 3-year-old boy presented with pathologic fracture of the left proximal femur. Magnetic resonance imaging revealed an aggressive expansile bony mass associated with cortical destruction and surrounding myositis. Computed tomography-guided biopsy revealed a monomorphic small round blue cell tumor by histology. CD99 immunoreactivity and low-level EWSR1 gene translocation by break-apart fluorescent in situ hybridization initially favored a diagnosis of Ewing sarcoma and chemotherapy commenced. Subsequent molecular evaluation by an anchored multiplex polymerase chain reaction-based assay (Archer FusionPlex Sarcoma Panel) revealed a nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) gene fusion...
April 27, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28447127/bone-adaptation-of-a-biologically-reconstructed-femur-after-ewing-sarcoma-long-term-morphological-and-densitometric-evolution
#19
Giordano Valente, Fulvia Taddei, Andrea Roncari, Enrico Schileo, Marco Manfrini
Combining bone allografts and vascularized fibular autografts in intercalary reconstructions after resection of bone sarcomas is of particular interest in young patients as it facilitates bone healing and union and helps reduce fractures. However, adverse events related to bone adaptation still occur. Bone adaptation is driven by mechanical loading, but no quantitative biomechanical studies exist that would help surgical planning and rehabilitation. We analyzed the bone adaptation of a successful femoral reconstruction after Ewing sarcoma during 76-month follow-up using a novel methodology that allows CT-based quantification of morphology and density...
April 26, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28439237/biomarkers-of-osteosarcoma-chondrosarcoma-and-ewing-sarcoma
#20
REVIEW
Francesco R Evola, Luciano Costarella, Vito Pavone, Giuseppe Caff, Luca Cannavò, Andrea Sessa, Sergio Avondo, Giuseppe Sessa
Osteosarcoma is the most frequent malignant bone neoplasm, followed by chondrosarcoma and Ewing sarcoma. The diagnosis of bone neoplasms is generally made through histological evaluation of a biopsy. Clinical and radiological features are also important in aiding diagnosis and to complete the staging of bone cancer. In addition to these, there are several non-specific serological or specific molecular markers for bone neoplasms. In bone tumors, molecular markers increase the accuracy of the diagnosis and assist in subtyping bone tumors...
2017: Frontiers in Pharmacology
keyword
keyword
3009
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"