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Primary malignant bone tumors

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https://www.readbyqxmd.com/read/28724045/spinal-tumors-in-children
#1
Andrei Fernandes Joaquim, Enrico Ghizoni, Marcelo Gomes Cordeiro Valadares, Simone Appenzeller, Simone Dos Santos Aguiar, Helder Tedeschi
Introduction: Spinal tumors are rare in the pediatric population, presenting many specific peculiarities when compared to adults. We have performed a broad narrative review to describe the most common spinal tumors in children, discussing their main characteristics and management options. Method: The authors have performed an extensive review of the peer-reviewed literature addressing the aforementioned objectives. Results: Multimodality radiological studies (plain films, 3D computed tomography scan and magnetic resonance imaging) are necessary for proper evaluation and differential diagnosis of spinal tumors in children...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28721629/epha3-targeting-reduces-in-vitro-adhesion-and-invasion-and-in-vivo-growth-and-angiogenesis-of-multiple-myeloma-cells
#2
Francesco La Rocca, Irma Airoldi, Emma Di Carlo, Pina Marotta, Geppino Falco, Vittorio Simeon, Ilaria Laurenzana, Stefania Trino, Luciana De Luca, Katia Todoerti, Oreste Villani, Martin Lackmann, Fiorella D'Auria, Francesco Frassoni, Antonino Neri, Luigi Del Vecchio, Pellegrino Musto, Daniela Cilloni, Antonella Caivano
PURPOSE: Multiple myeloma (MM) is a hematologic malignancy characterized by a clonal expansion of plasma cells (PCs) in the bone marrow (BM). Since MM has so far remained incurable, further insights into its pathogenesis and the concomitant identification of new therapeutic targets are urgently needed. The tyrosine kinase receptor EphA3 is known to be involved in various cellular processes including cell viability, cell movement and cell-cell interactions. Recently, EphA3 has emerged as a potential therapeutic target in several hematologic and solid tumors...
July 18, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28715796/application-of-long-noncoding-rnas-in-osteosarcoma-biomarkers-and-therapeutic-targets
#3
Zhihong Li, Pengcheng Dou, Tang Liu, Shasha He
Osteosarcoma is the most common primary bone malignancy in children and adolescents. Although improvements in therapeutic strategies were achieved, the outcome remains poor for most patients with metastatic or recurrent osteosarcoma. Therefore, it is imperative to identify novel and effective prognostic biomarker and therapeutic targets for the disease. Long noncoding RNAs (lncRNAs) are a novel class of RNA molecules defined as transcripts >200 nucleotides that lack protein coding potential. Many lncRNAs are deregulated in cancer and are important regulators for malignancies...
July 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28713950/microrna%C3%A2-302a-suppresses-cell-proliferation-migration-and-invasion-in-osteosarcoma-by-targeting-adam9
#4
Xiaoming Yang, Yan Cui, Fuqiang Yang, Chao Sun, Xuejian Gao
Osteosarcoma (OS) is the most frequent malignant primary bone tumor arising from primitive bone‑forming mesenchymal cells in children and adolescents. The dysregulation of microRNAs (miRNAs) has been reported in OS, and these aberrantly expressed miRNAs are involved in the initiation and progression of OS. The aim of the present study was to investigate the expression and functions of miRNA‑302a (miR‑302a) in OS and its underlying mechanism. It was found that the expression of miR‑302a was reduced in OS tissues and cell lines...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28706431/pancreatic-t-histiocyte-rich-large-b-cell-lymphoma-a-case-report-and-review-of-literature
#5
Shu-Mei Zheng, De-Jiang Zhou, Yi-Hua Chen, Rui Jiang, Yun-Xia Wang, Yong Zhang, Hong-Li Xue, Hai-Qiong Wang, Dong Mou, Wei-Zheng Zeng
Primary pancreatic lymphoma (PPL) is an extremely rare form of extranodal malignant lymphoma. The most common histological subtype of PPL is diffuse large B cell lymphoma (DLBCL). In rare cases, PPL can also present as follicular lymphoma, small lymphocytic lymphoma, and T cell lymphoma either of non-Hodgkin's lymphoma or of Hodgkin's lymphoma. T-cell/histiocyte-rich large B-cell lymphoma (T/HRBCL) is an uncommon morphologic variant of DLBCL with aggressive clinical course, it is predominantly a nodal disease, but extranodal sites such as bone marrow, liver, and spleen can be involved...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28698829/a-brown-tumor-of-tibial-diaphysis-masquerading-as-malignancy
#6
Raju Vaishya, Amit Kumar Agarwal, Vipul Vijay, Abhishek Vaish
A cortical lesion of the tibial diaphysis in a young patient poses a diagnostic challenge to the clinician. Brown tumors, although not very common, may mimic malignancies on radiographs. Brown tumors are destructive lytic lesions of the bone due to increased osteoclastic activity and fibroblastic proliferation in patients with uncontrolled hyperparathyroidism (HPT). They occur after primary or secondary HPT due to renal failure but very rarely due to vitamin D deficiency. We report a rare case of a brown tumor of tibial diaphyses in a young female patient mimicking a locally aggressive tumor with secondary HPT due to a severe vitamin D deficiency...
June 6, 2017: Curēus
https://www.readbyqxmd.com/read/28682435/high-expression-of-long-non-coding-rna-xist-in-osteosarcoma-is-associated-with-cell-proliferation-and-poor-prognosis
#7
G-L Li, Y-X Wu, Y-M Li, J Li
OBJECTIVE: Osteosarcoma is one of the most common primary bone malignancies. Long non-coding RNAs (lncRNAs) have recently emerged as key regulators of osteosarcoma. The aim of present study was to explore the prognostic value of long non-coding RNA XIST (XIST) in osteosarcoma and XIST's relation to the cell proliferation in osteosarcoma in vitro. PATIENTS AND METHODS: The XIST expressions were detected in osteosarcoma tissues and their paired adjacent normal tissues from 145 osteosarcoma patients by using qRT-PCR...
June 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28681940/transcriptional-regulation-of-runx2-by-hsp90-controls-osteosarcoma-apoptosis-via-the-akt-gsk-3%C3%AE-%C3%AE-catenin-signaling
#8
Gui-Hong Liang, Ning Liu, Ming-Tang He, Jie Yang, Zu-Jian Liang, Xue-Juan Gao, Ali Hasan Rahhal, Qing-Yu He, Huan-Tian Zhang, Zhen-Gang Zha
Osteosarcoma (OS) is the most malignant primary bone tumor in children and adolescents with limited treatment options and poor prognosis. Recently, aberrant expression of Runx2 has been found in OS, thereby contributing to the development and progression of OS. However, the upstream signaling molecules that regulate its expression in OS remain largely unknown. In the present study, we first confirmed that the inhibition of HSP90 with 17-AAG caused significant apoptosis of OS cells via a caspase-3-dependent mechanism, and that inhibition or knockdown of HSP90 by 17-AAG or siRNAs significantly suppressed mRNA and protein expression of Runx2...
July 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28679871/increased-circular-rna-ubap2-acts-as-a-sponge-of-mir-143-to-promote-osteosarcoma-progression
#9
Hao Zhang, Guangchao Wang, Chen Ding, Peng Liu, Renkai Wang, Wenbin Ding, Dake Tong, Dajiang Wu, Cheng Li, Qiang Wei, Xin Zhang, Di Li, Peizhao Liu, Haochen Cui, Hao Tang, Fang Ji
Deregulated expression of circular RNA (circRNA) has been determined to be important in carcinogenesis and progression; however, in the most common type of primary malignant bone tumor osteosarcoma, the roles of circRNA in cancer development still remain to be elucidated. Here, we found that circRNA UBAP2 (circUBAP2) expression is significantly increased in human osteosarcoma tissues as compared to those in matched controls. Increased circUBAP2 expression was significantly correlated with human osteosarcoma progression and prognosis...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28677742/upregulation-of-hoxb7-promotes-proliferation-and-metastasis-of-osteosarcoma-cells
#10
Yang Yang, Jing Chen, Qingzhong Chen
Osteosarcoma is the most common primary malignant bone cancer in children and adolescents. Unfortunately, treatment failures are common due to metastasis and chemore-sistance, however, the underlying molecular mechanism remains unclear. Accumulating evidence indicated that the homeobox B7 (HOXB7) gene was associated with the development of cancer. However, the expression and function of HOXB7 in osteosarcoma is still unknown. In the current study, the expression of HOXB7 was upregulated in osteosarcoma tissues and cells compared with paired adjacent non‑tumor bone tissues and osteoblastic cells using reverse transcription‑quantitative polymer chain reaction and western blotting...
June 30, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28672103/shingosine-1-phosphate-suppresses-chondrosarcoma-metastasis-by-up-regulation-of-tissue-inhibitor-of-metalloproteinase-3-through-suppressing-mir-101-expression
#11
Chun-Hao Tsai, Dong-Ying Yang, Chih-Yang Lin, Tsung-Ming Chen, Chih-Hsin Tang, Yuan-Li Huang
Chondrosarcoma is the second most common primary malignancy form of bone cancer, exhibiting resistance to chemotherapy and radiation therapy as well as developing high metastasis ability in late stage tumors. Thus, understanding the metastatic processes of chondrosarcoma is considered a strategy for treatment of this disease. Sphingosine 1-phosphate (S1P), a bioactive sphingolipid, is produced intracellularly by sphingosine kinase (SphK) and is regarded as a second signaling molecule that regulates inflammation, proliferation, angiogenesis, and metastasis...
July 3, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28671022/tim-3-as-a-diagnostic-and-prognostic-biomarker-of-osteosarcoma
#12
Wenhui Ge, Jing Li, Wenhao Fan, Delong Xu, Shangfei Sun
Osteosarcoma is the most frequent primary bone tumor that affects adolescents and children. However, diagnostic and prognostic biomarkers for osteosarcoma remain lacking. (Tim-3) T-cell immunoglobulin domain and mucin domain-3, which negatively regulates T cell helper (Th1) cells and affects cytokine expression, has attracted increasing attention due to its critical role in regulating both adaptive and innate immune cells. In this study, we evaluated serum soluble Tim-3 level in osteosarcoma patients to explore its diagnostic and prognostic value for this particular malignancy...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28668831/choline-deficient-diet-induced-fatty-liver-is-a-metastasis-resistant-microenvironment
#13
Miki Nakamura, Atsushi Suetsugu, Kosuke Hasegawa, Takuro Matsumoto, Hitomi Aoki, Takahiro Kunisada, Masahito Shimizu, Shigetoyo Saji, Hisataka Moriwaki, Robert M Hoffman
BACKGROUND/AIM: Fatty liver disease is increasing in the developed and developing world. Liver metastasis from malignant lymphoma in the fatty liver is poorly understood. In a previous report, we developed color-coded imaging of the tumor microenvironment (TME) of the murine EL4-RFP malignant lymphoma during metastasis, including the lung. In the present report, we investigated the potential and microenvironment of the fatty liver induced by a choline-deficient diet as a metastatic site in this mouse lymphoma model...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28659685/jarcho-s-syndrome-bone-marrow-infiltrates-from-a-gastric-malignancy
#14
Badareesh Lakshminarayana, Satya Vijay Chigurupatti, Sampath P Kumar
Bone and bone marrow metastasis is extremely rare in adenocarcinoma particularly from the stomach. We present a case of gastric carcinoma primarily manifesting as anemia and pancytopenia. On evaluation, he was found to have bone marrow secondaries from a gastric primary tumor. Though such metastasis is rare, patients with refractory anemia must be evaluated to search for solid organ malignancy like the stomach.
June 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28659052/magnetic-resonance-guided-focused-ultrasound-for-treatment-of-bone-tumors
#15
Vivek Ajit Singh, Syed Usman Shah, Nor Faissal Yasin, Basri Johan Jeet Abdullah
AIMS: Magnetic resonance guided focused ultrasound (MRgFUS) is a new modality in the management of primary and secondary bone tumors. We aimed to investigate the safety, efficacy, and feasibility of using MRgFUS for the treatment of (1) benign bone tumors with the intent of complete tumor ablation, (2) primary malignant bone tumors with the intent to assess its effectiveness in causing tumor necrosis, and (3) metastatic bone disease with the intent of pain relief. METHOD: Twenty-four patients with benign bone tumors, primary malignant bone tumors, and metastatic bone disease were treated with one session of MRgFUS...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28655525/ewing-s-sarcoma-of-the-maxillofacial-region-a-case-report
#16
P Rattana-Arpha, K Dhanuthai, P Sutthiprapaporn, K Dhanesuan
Ewing's sarcoma (ES) is an uncommon malignancy, especially in the head and neck region, with only 30 cases reported so far. The mandible is more affected than the maxilla. It represents the most frequent small round cell bone tumor of childhood and adolescence. This report presented a case of 19-year-old male with primary ES in the right side of maxilla, maxillary sinus, zygoma and temporal fossa areas. The clinical, radiographic, histopathologic features and main histopathologic differential diagnosis of ES were reviewed to avoid potential diagnostic pitfalls...
June 24, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28655094/-a-retrospective-analysis-of-clinical-characteristics-and-prognostic-factors-for-124-cases-of-primary-gastric-lymphomas
#17
Y He, L Wang, H Y Zhu, J H Liang, W Wu, J Z Wu, Y Xia, L Cao, L Fan, J Y Li, W Xu
Objective: To analyze the clinical characteristics, treatment and prognosis of primary gastric lymphomas (PGL). Methods: A retrospective study was conducted in 124 cases of PGL from July 2009 to January 2016 in our hospital, and the clinical records, pathological and immunohistochemical features were analyzed. The relationship between different factors at diagnosis and prognosis were studied. Results: 124 cases of PGL included 93 diffuse large B cell lymphoma (DLBCL) patients, 25 mucosa associated lymphoid tissue (MALT) lymphoma cases, 1 mantle cell lymphoma, 4 peripheral T-cell lymphoma-not otherwise specified, and 1 extra-nodal NK/T-cell lymphoma-nasal type...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28654202/socioeconomic-factors-affect-the-selection-of-proton-radiation-therapy-for-children
#18
Colette J Shen, Chen Hu, Matthew M Ladra, Amol K Narang, Craig E Pollack, Stephanie A Terezakis
BACKGROUND: Proton radiotherapy remains a limited resource despite its clear potential for reducing radiation doses to normal tissues and late effects in children in comparison with photon therapy. This study examined the impact of race and socioeconomic factors on the use of proton therapy in children with solid malignancies. METHODS: This study evaluated 12,101 children (age ≤ 21 years) in the National Cancer Data Base who had been diagnosed with a solid malignancy between 2004 and 2013 and had received photon- or proton-based radiotherapy...
June 27, 2017: Cancer
https://www.readbyqxmd.com/read/28639531/outcome-of-bone-recycling-using-liquid-nitrogen-as-bone-reconstruction-procedure-in-malignant-and-recurrent-benign-aggressive-bone-tumour-of-distal-tibia-a-report-of-four-cases
#19
Eka Wiratnaya I Gede, Arrisna Artha Ida Ayu, Yudhi Setiawan I Gn, Wien Aryana Ign, Suyasa I Ketut, Siki Kawiyana I Ketut, Astawa Putu
Amputation still considered as primary choice of malignancy treatment in distal tibia. Bone recycling with liquid nitrogen for reconstruction following resection of malignant bone tumours offers many advantages. We presented four patients with osteosarcoma, Ewing sarcoma, adamantinoma and recurrent giant cell tumour over distal tibia. All of the patients underwent wide excision and bone recycling using liquid nitrogen as bone reconstruction. The mean functional Musculoskeletal Tumor Society (MSTS) score was 75% with no infection and local recurrent...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28637614/classical-inherited-bone-marrow-failure-syndromes-with-high-risk-for-myelodysplastic-syndrome-and-acute-myelogenous-leukemia
#20
REVIEW
Sharon A Savage, Carlo Dufour
The inherited marrow failure syndromes (IBMFS) are a heterogeneous group of diseases characterized by failure in the production of one or more blood lineage. The clinical manifestations of the IBMFS vary according to the type and number of blood cell lines involved, including different combinations of anemia, leukopenia, and thrombocytopenia. In some IBMFS, systemic non-hematologic manifestations, including congenital malformations, mucocutaneous abnormalities, developmental delay, and other medical complications, may be present...
April 2017: Seminars in Hematology
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