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osteosarcoma staging

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https://www.readbyqxmd.com/read/28636981/development-and-validation-of-nomogram-based-on-mir-203-and-clinicopathological-characteristics-predicting-survival-after-neoadjuvant-chemotherapy-and-surgery-for-patients-with-non-metastatic-osteosarcoma
#1
Dong Cheng, Xubin Qiu, Ming Zhuang, Chenlei Zhu, Hongjun Zou, Ailiang Zhang
BACKGROUND: Recently, nomograms have been used as models for risk prediction in malignant tumor because they can predict the outcome of interest for a certain individual based on many variables. This study aimed to establish an effective prognostic nomogram for osteosarcoma based on the clinicopathological factors and microRNA-203. RESULTS: The results showed that miR-203 expression was significantly lower in osteosarcoma tissues compared with the corresponding adjacent tissues (P < 0...
June 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624813/down-regulation-of-human-positive-coactivator-4-suppress-tumorigenesis-and-lung-metastasis-of-osteosarcoma
#2
Xu Hu, Chao Zhang, Ying Zhang, Christopher S Hong, Wugui Chen, Weiwei Shen, Hongkai Wang, Jianrong He, Pei Chen, Yue Zhou, Chunmeng Shi, Tongwei Chu
Osteosarcoma is a kind of primary malignant bone tumor with the highest incidence and an extraordinarily poor prognosis and early pulmonary metastasis formation as a frequent occurrence. Transcriptional positive coactivator 4 (PC4) has multiple functions in DNA replication, transcription, repair and chromatin organization, even in tumorigenesis. However, the precise function of PC4 in osteosarcoma is still unclear and controversial. In this paper we found PC4 was upregulated in patient-derived osteosarcoma tissues compared to normal...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28603424/neoadjuvant-chemotherapy-combined-with-limb-salvage-surgery-in-patients-with-limb-osteosarcoma-of-enneking-stage-ii-a-retrospective-study
#3
Guangke Yuan, Jingming Chen, Dongjin Wu, Chunzheng Gao
OBJECTIVE: To explore the effect of neoadjuvant chemotherapy combined with limb salvage surgery in patients with limb osteosarcoma of Enneking stage II. PATIENTS AND METHODS: Medical records of 98 patients who met the inclusion criteria were retrospectively analyzed. Of these patients, 56 cases who received neoadjuvant chemotherapy combined with limb salvage surgery were listed as group A, while another 42 patients who received limb salvage surgery combined with adjuvant chemotherapy were listed as group B...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28598690/in-vitro-evaluation-of-188-re-hedp-a-mechanistic-view-of-bone-pain-palliations
#4
Rohit Sharma, Chandan Kumar, Madhava B Mallia, Mythili Kameswaran, Haladhar D Sarma, Sharmila Banerjee, Ashutosh Dash
Skeletal metastasis is common in advanced stages of various cancers, particularly of the prostate and breast carcinoma. (188)Re-HEDP (1-hydroxyethane 1, 1-diphosphonic acid) is a clinically established radiopharmaceutical for bone pain palliation of osseous metastasis, and it takes advantage of high bone affinity. The present work aims at elucidating the possible mechanisms of cell killing by (188)Re-HEDP in osteosarcoma cells and biodistribution studies in mice.(188)Re-HEDP complex was prepared by using lyophilized HEDP kits prepared in-house...
June 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28593144/schwannoma-of-the-femur-a-rare-case-report
#5
Fahad Al-Lhedan
Schwannoma is a benign tumor derived from Schwann cells that cover myelinated nerve fibers (1). Among primary bone tumors, intraosseous schwannoma accounts for less than 0.2% (2). We are reporting a rare case of an 18-year-old female presented with swelling in the posterior right thigh. The patient was asymptomatic and this was incidentally discovered by her massage therapist. However, the swelling was gradually growing since then. The plain radiograph findings were suggestive of a benign bone tumor. MRI with gadolinium was performed for further evaluation but it demonstrated suspicious features as evidenced by the extra osseous enhancing soft tissue component...
September 2017: Journal of Bone Oncology
https://www.readbyqxmd.com/read/28587390/microrna-137-acts-as-a-tumor-suppressor-in-osteosarcoma-by-targeting-enhancer-of-zeste-homolog-2
#6
Qiong Feng, Qing Wu, Xing Liu, Yanfei Xiong, Hui Li
MicroRNA (miR) are short non-coding RNA that bind to the 3'-untranslational region of their target genes, inhibiting translation and causing mRNA degradation. miR deregulation has been implicated in human cancer; however, the detailed regulatory mechanism of miR-137 in osteosarcoma (OS) remains largely unknown. In the present study, miR-137 and enhancer of zeste homologue 2 (EZH2) mRNA and protein expression levels were analyzed using reverse transcription-quantitative polymerase chain reaction and western blotting, respectively...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28587351/role-of-rank-and-akt1-activation-in-human-osteosarcoma-progression-a-clinicopathological-study
#7
Jianxi Zhu, Yuwei Liu, Yong Zhu, Min Zeng, Jie Xie, Pengfei Lei, Kanghua Li, Yihe Hu
The receptor activator of nuclear factor κB (RANK) axis is the fundamental signaling pathway in bone formation as well as bone tumor pathophysiology. The aim of the present study was to evaluate the impact of the expression of RANK and its downstream signaling molecule Akt1 on tumor progression in patients with osteosarcoma. Expression of RANK and Akt1 was examined in 78 human osteosarcoma samples by immunohistochemistry using formalin-fixed samples. Following this, each graded immunohistochemistry result was correlated with clinicopathological parameters and patient survival...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28571751/plasma-induced-selectivity-in-bone-cancer-cells-death
#8
Cristina Canal, Raul Fontelo, Ines Hamouda, Jordi Guillem-Marti, Uros Cvelbar, Maria-Pau Ginebra
BACKGROUND: Current therapies for bone cancers - either primary or metastatic - are difficult to implement and unfortunately not completely effective. An alternative therapy could be found in cold plasmas generated at atmospheric pressure which have already demonstrated selective anti-tumor action in a number of carcinomas and in more relatively rare brain tumors. However, its effects on bone cancer are still unknown. METHODS: Herein, we employed an atmospheric pressure plasma jet (APPJ) to validate its selectivity towards osteosarcoma cell line vs...
May 29, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28565800/microrna-93-promotes-cell-proliferation-by-directly-targeting-p21-in-osteosarcoma-cells
#9
Yu He, Bo Yu
MicroRNAs (miRNAs) are small, non-coding RNAs that are key regulators of gene expression by directly binding to the 3'-untranslated region of their target mRNAs, resulting in translational repression or degradation of mRNA. It has been demonstrated that miRNAs have key roles in a variety of human malignancies, including osteosarcoma. The present study aimed to assess the molecular mechanism of miR-93 in the regulation of osteosarcoma cell proliferation. Reverse-transcription quantitative PCR and western blot assays were used to examine mRNA and protein expression...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28558357/long-non-coding-rna-hoxa11-as-functions-as-a-competing-endogenous-rna-to-regulate-rock1-expression-by-sponging-mir-124-3p-in-osteosarcoma
#10
Mingxing Cui, Jingyu Wang, Qingjiang Li, Junlei Zhang, Jinling Jia, Xinli Zhan
Long non-coding RNAs (lncRNAs) have been strongly associated with various types of cancer. this study was to explore the critical role of lncRNA HOXA11-AS in osteosarcoma (OS) progression. Briefly, we should that the expression of HOXA11-AS was upregulated in OS tissues and cell lines. The high expression of HOXA11-AS was associated with advanced clinical stage, distant metastasis and poor overall survival of OS. In addition, We found that HOXA11-AS silencing suppressed OS cells proliferation, invasion and induced cell arrest in G0/G1 phase...
May 27, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28537682/elevated-ndc80-expression-is-associated-with-poor-prognosis-in-osteosarcoma-patients
#11
B Xu, D-P Wu, R-T Xie, L-G Liu, X-B Yan
OBJECTIVE: Osteosarcoma (OS) is a commonly diagnosed bone malignancy in children and adolescents. Nuclear division cycle 80 (NDC80) is a crucial regulator of the cell division cycle that has recently been identified as a novel oncoprotein in various solid tumors; however, its role in OS remains poorly understood. The aim of this study was to investigate correlations between NDC80 expression in OS patients and clinicopathological features and prognosis. PATIENTS AND METHODS: We began this study by determining NDC80 expression in sarcoma patients using the Oncomine Platform...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28521412/microrna-335-and-its-target-rock1-synergistically-influence-tumor-progression-and-prognosis-in-osteosarcoma
#12
Yong Wang, Ningning Wang, Xiandong Zeng, Jie Sun, Guangbin Wang, Huimian Xu, Wei Zhao
MicroRNA (miR)-335 and Rho-associated serine-threonine protein kinase 1 (Rock1) is ectopically expressed in multiple malignant tumors including osteosarcoma. The present study aimed to clarify whether the combined ectopically expressed miR-335 and Rock1 was correlated with clinicopathological features and prognosis in patients with osteosarcoma. The expression of miR-335 and Rock1 in 91 osteosarcoma tissue samples and 47 noncancerous bone tissues were determined respectively by in situ hybridization and immunohistochemistry...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521394/increased-six1-expression-is-associated-with-poor-prognosis-in-patients-with-osteosarcoma
#13
Lemeng Chao, Jianfeng Liu, Dewei Zhao
Sine oculis homeobox homolog 1 (Six1) is an evolutionarily conserved transcription factor that acts as master regulator of development and is frequently dysregulated in various types of cancer. Six1 has been demonstrated to be upregulated in human osteosarcoma cell lines compared with osteoblastic cell lines. However, the association of Six1 expression with the progression and prognosis of osteosarcoma patients remains unclear. The purpose of the present study was to investigate the association between Six1 expression and the clinicopathological characteristics and prognosis of osteosarcoma...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28506242/an-imprinted-non-coding-genomic-cluster-at-14q32-defines-clinically-relevant-molecular-subtypes-in-osteosarcoma-across-multiple-independent-datasets
#14
Katherine E Hill, Andrew D Kelly, Marieke L Kuijjer, William Barry, Ahmed Rattani, Cassandra C Garbutt, Haydn Kissick, Katherine Janeway, Antonio Perez-Atayde, Jeffrey Goldsmith, Mark C Gebhardt, Mohamed S Arredouani, Greg Cote, Francis Hornicek, Edwin Choy, Zhenfeng Duan, John Quackenbush, Benjamin Haibe-Kains, Dimitrios Spentzos
BACKGROUND: A microRNA (miRNA) collection on the imprinted 14q32 MEG3 region has been associated with outcome in osteosarcoma. We assessed the clinical utility of this miRNA set and their association with methylation status. METHODS: We integrated coding and non-coding RNA data from three independent annotated clinical osteosarcoma cohorts (n = 65, n = 27, and n = 25) and miRNA and methylation data from one in vitro (19 cell lines) and one clinical (NCI Therapeutically Applicable Research to Generate Effective Treatments (TARGET) osteosarcoma dataset, n = 80) dataset...
May 15, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28506183/strategies-and-challenges-for-communicating-the-diagnosis-of-cancer-in-cross-cultural-clinical-settings-perspectives-from-south-african-healthcare-professionals
#15
Ottilia Brown, Veonna Goliath, Dalena R M van Rooyen, Colleen Aldous, Leonard Charles Marais
Communicating the diagnosis of cancer in cross-cultural clinical settings is a complex task. This qualitative research article describes the content and process of informing Zulu patients in South Africa of the diagnosis of cancer, using osteosarcoma as the index diagnosis. We used a descriptive research design with census sampling and focus group interviews. We used an iterative thematic data analysis process and Guba's model of trustworthiness to ensure scientific rigor. Our results reinforced the use of well-accepted strategies for communicating the diagnosis of cancer...
May 16, 2017: Journal of Psychosocial Oncology
https://www.readbyqxmd.com/read/28496199/upregulation-and-biological-function-of-transmembrane-protein-119-in-osteosarcoma
#16
Zhen-Huan Jiang, Jun Peng, Hui-Lin Yang, Xing-Li Fu, Jin-Zhi Wang, Lei Liu, Jian-Nong Jiang, Yong-Fei Tan, Zhi-Jun Ge
Osteosarcoma is suggested to be caused by genetic and molecular alterations that disrupt osteoblast differentiation. Recent studies have reported that transmembrane protein 119 (TMEM119) contributes to osteoblast differentiation and bone development. However, the level of TMEM119 expression and its roles in osteosarcoma have not yet been elucidated. In the present study, TMEM119 mRNA and protein expression was found to be up-regulated in osteosarcoma compared with normal bone cyst tissues. The level of TMEM119 protein expression was strongly associated with tumor size, clinical stage, distant metastasis and overall survival time...
May 12, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28477425/outcome-and-complications-in-dogs-with-appendicular-primary-bone-tumors-treated-with-stereotactic-radiotherapy-and-concurrent-surgical-stabilization
#17
Sarah E Boston, Arathi Vinayak, Xiaomin Lu, Susan Larue, Nicholas J Bacon, Jason A Bleedorn, Carlos H M Souza, Nicole P Ehrhart
OBJECTIVE: To document the outcome of dogs with appendicular primary bone tumors treated with stereotactic radiotherapy (SRT) and concurrent stabilization. STUDY DESIGN: Multi-institutional retrospective case series. ANIMALS: Eighteen dogs with presumptive or definitive diagnosis of appendicular osteosarcoma. METHODS: Medical records of dogs with appendicular primary bone tumors treated with SRT and stabilization were reviewed for signalment, preoperative staging and diagnostics, radiation dose, stabilization method, and outcome...
May 6, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28476039/nano-pulse-stimulation-nps-ablates-tumors-and-inhibits-lung-metastasis-on-both-canine-spontaneous-osteosarcoma-and-murine-transplanted-hepatocellular-carcinoma-with-high-metastatic-potential
#18
Xinhua Chen, Yiling Chen, Jianwen Jiang, Liming Wu, Shengyong Yin, Xudong Miao, R James Swanson, Shusen Zheng
BACKGROUND: Nanosecond pulsed electric field (nsPEF), which is also termed as nano-pulse stimulation (NPS), has the potential of stimulating immune responses toward cancer cells. The current study investigates its local and systemic antitumor efficacy in vivo in late stage tumors with lung metastasis. METHOD: The 12 canines with spontaneous osteosarcomas and 12 nude mice transplanted with human hepatocellular carcinoma were divided randomly and were given NPS treatment, surgery or no treatment control...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28469952/long-noncoding-rna-atb-promotes-osteosarcoma-cell-proliferation-migration-and-invasion-by-suppressing-mir-200s
#19
Feng Han, Changhe Wang, Yi Wang, Liang Zhang
Long noncoding RNA activated by transforming growth factor-β (lncRNA-ATB) is a novel lncRNA, which is recently reported to have critical roles in carcinogenesis and progression of several cancers. However, the expression, clinical values, biological roles, and underlying molecular mechanisms of lncRNA-ATB in osteosarcoma are still known. In this study, we measured lncRNA-ATB expression in serum and osteosarcoma tissues of osteosarcoma patients, analyzed its diagnostic and prognostic values. Serum lncRNA-ATB is increased in osteosarcoma patients and could accurately discriminate osteosarcoma patients from healthy controls...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28459463/mycn-induces-neuroblastoma-in-primary-neural-crest-cells
#20
R R Olsen, J H Otero, J García-López, K Wallace, D Finkelstein, J E Rehg, Z Yin, Y-D Wang, K W Freeman
Neuroblastoma (NBL) is an embryonal cancer of the sympathetic nervous system (SNS), which causes 15% of pediatric cancer deaths. High-risk NBL is characterized by N-Myc amplification and segmental chromosomal gains and losses. Owing to limited disease models, the etiology of NBL is largely unknown, including both the cell of origin and the majority of oncogenic drivers. We have established a novel system for studying NBL based on the transformation of neural crest cells (NCCs), the progenitor cells of the SNS, isolated from mouse embryonic day 9...
May 1, 2017: Oncogene
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