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Cancer: Bone Cancers

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Total 366 results found since Jan 2013.

CBX2 is a functional target of miRNA let ‐7a and acts as a tumor promoter in osteosarcoma
Our study demonstrates that let ‐7a/CBX2 plays a crucial role in osteosarcoma progression. CBX2 could serve as a promising prognostic biomarker and potential therapeutic target for osteosarcoma patients. AbstractOsteosarcoma is the most common type of primary malignant tumor of skeletal with poor prognosis in children and adolescents. Accumulating evidence indicates that CBX2 is overexpressed in multiple human neoplasm and play a critical role in tumorigenesis and progression. However, its functional role and upstream regulation mechanism in osteosarcoma remain unknown. In the present study, tissue microarray (TMA) analy...
Source: Cancer Medicine - May 30, 2019 Category: Cancer & Oncology Authors: Qicai Han, Chao Li, Yuan Cao, Jie Bao, Kongfei Li, Ruipeng Song, Xiaolong Chen, Juan Li, Xuejian Wu Tags: ORIGINAL RESEARCH Source Type: research

Silencing microRNA-27a inhibits proliferation and invasion of human osteosarcoma cells through the SFRP1-dependent Wnt/ β-catenin signaling pathway.
This study aims to discuss effects of miR-27a and its target gene secreted frizzled related protein 1 (SFRP1) on proliferation and invasion of human osteosarcoma cells via Wnt/β-catenin signaling pathway. The expression of miR-27a and SFRP1 in osteosarcoma tissues and cells was detected, followed by identification of their relations. Subsequently, miR-27a mimic, miR-27a inhibitor, or siRNA against SFRP1 were introduced into cells (HOS and U2OS) to investigate their role in cell proliferation and invasion. The expression of Wnt/β-catenin signaling pathway-related gene was analyzed to further uncover the regulatory mechani...
Source: Bioscience Reports - May 8, 2019 Category: Biomedical Science Authors: Mu Y, Zhang L, Chen X, Chen S, Shi Y, Li J Tags: Biosci Rep Source Type: research

EP1 receptor is involved in prostaglandin E2-induced osteosarcoma growth.
Authors: Niu JC, Ma N, Liu W, Wang PJ Abstract Recent studies showed that the activation of prostaglandin (PG) receptor EP1 promotes cell migration and invasion in different cancers. The aim of this study was to investigate the role of EP1 in the proliferation of osteosarcoma (OS) cells in vitro and in vivo. EP1 mRNA and protein levels were analyzed by real-time RT-PCR and Western blot, respectively in human OS cell lines MG63, OS732, U-2OS, HOS and SAOS-2 compared to human fetal osteoblastic hFOB 1.19 cells. MG63 cells were treated with PGE2, EP1 specific agonist 17-PT-PGE2, 17-PT-PGE2 + EP1 specific antagonist SC...
Source: Bosnian Journal of Basic Medical Sciences - April 19, 2019 Category: General Medicine Tags: Bosn J Basic Med Sci Source Type: research

Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research

CBX3 predicts an unfavorable prognosis and promotes tumorigenesis in osteosarcoma.
Authors: Ma C, Nie XG, Wang YL, Liu XH, Liang X, Zhou QL, Wu DP Abstract CBX3, namely chromobox protein homolog 3, a member of the heterochomatin protein 1 (HP1) family, has been shown to be associated with the tumorigenesis of various types of cancer. The aim of the present study was to assess the biological role and the clinicopathological importance of CBX3 in osteosarcoma. The Oncomine database was utilized to determine the CBX3 expression in sarcoma patients. A retrospective cohort study was conducted to evaluate the prognostic value of CBX3 expression. In addition, correlations between the clinicopathologic...
Source: Molecular Medicine Reports - April 5, 2019 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

The short interference RNA (siRNA) targeting NMUR2 relieves nociception in a bone cancer pain model of rat through PKC-ERK and PI3K-AKT pathways.
CONCLUSION: si-NMUR2 alleviates BCP via inactivation of PKC/ERK and PI3K/AKT signal pathways. PMID: 30914203 [PubMed - as supplied by publisher]
Source: Biochemical and Biophysical Research communications - March 22, 2019 Category: Biochemistry Authors: Peng S, Lu Y, Li P, Liu P, Shi X, Liu C, Zhang Y, Liu S, Wang J Tags: Biochem Biophys Res Commun Source Type: research

Graphene oxide functionalized with chitosan based nanoparticles as a carrier of siRNA in regulating Bcl-2 expression on Saos-2 & MG-63 cancer cells and its inflammatory response on bone marrow derived cells from mice
Publication date: June 2019Source: Materials Science and Engineering: C, Volume 99Author(s): Shanmuga Sundar Saravanabhavan, Muruganantham Rethinasabapathy, Sarang Zsolt, Aravind Bhat Kalambettu, Sundaravadivel Elumalai, Manokaran Janakiraman, Yun Suk Huh, Balasubramanian NatesanAbstractPresently, quite a lot of research that are being carried out to find a potential cure for cancer and many had made to clinical trial stage as well. In the present study, we focus on use of a novel graphene oxide functionalized chitosan nanoparticle targeting Saos-2 and MG-63 osteosarcoma cells. The graphene oxide chitosan nanoparticles wer...
Source: Materials Science and Engineering: C - March 1, 2019 Category: Materials Science Source Type: research

Trichostatin A activates FOXO1 and induces autophagy in osteosarcoma.
Conclusions: We found that inhibition of autophagy, either by autophagy inhibitors or ATG gene knockdown, markedly enhances TSA-caused cell death. Taken together, our studies reveal the function of autophagy in HDACI-caused osteosarcoma cell death and thus support the development of a novel therapeutic strategy by combining HDACIs and autophagy inhibitors in osteosarcoma treatment. PMID: 30697272 [PubMed]
Source: Archives of Medical Science - February 1, 2019 Category: General Medicine Tags: Arch Med Sci Source Type: research

Naringin targets Zeb1 to suppress osteosarcoma cell proliferation and metastasis.
Abstract Naringin, a citrus bioflavonoid, has anti-inflammatory actions and cardio- and neuroprotective effects. In addition, naringin exhibits multiple antitumor actions in several cancer types, including osteosarcoma, the most common type of bone cancer. Here, we show that naringin inhibits proliferation and invasion and induces apoptosis in human osteosarcoma cells by inhibiting zinc finger E-box binding homeobox 1 (Zeb1), a transcriptional repressor of epithelial differentiation involved in tumor metastasis. Our expression analyses confirm that Zeb1 is highly expressed in osteosarcoma specimens and cell lines....
Source: Aging - December 22, 2018 Category: Biomedical Science Authors: Ming H, Chuang Q, Jiashi W, Bin L, Guangbin W, Xianglu J Tags: Aging (Albany NY) Source Type: research

Proliferation inhibition and apoptosis promotion by dual silencing of VEGF and Survivin in human osteosarcoma.
Abstract Simultaneous silencing of multiple upregulated genes is an attractive and viable treatment strategy for many incurable diseases including cancer. Herein we used a dual gene-targeted siRNA conjugate composed of VEGF and Survivin siRNA sequences in the same backbone to inhibit proliferation and angiogenesis in two human osteosarcoma cell lines. We synthesized siRNA sequences targeting the VEGF and Survivin genes individually (VEGF siRNA and Survivin siRNA) or simultaneously (one-chain-double-target siRNA: dual siRNA). VEGF and Survivin mRNA and protein expression levels in human osteosarcoma MG-63 and Saos-...
Source: Acta Biochimica et Biophysica Sinica - December 19, 2018 Category: Biochemistry Authors: Gu J, Ji Z, Li D, Dong Q Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

Carboxypeptidase E- ΔN promotes migration, invasion and epithelial-mesenchymal transition of human osteosarcoma cell lines through the Wnt/β-catenin pathway.
In this study, we investigated the effect of CPE-ΔN on cell migration, invasion and epithelial-mesenchymal transition (EMT) of OS cells, and illustrated the molecular mechanisms. We first constructed CPE-ΔN overexpressing human OS cell lines (143B and U2OS cells), and found that ectopic CPE-ΔN expression in OS cells enhanced cellular migratory and invasiveness abilities, and promoted EMT process. Further, overexpression of CPE-ΔN increased c-myc and nuclear β-catenin levels in OS cells, which suggested CPE-ΔN promoted the activation of Wnt/β-catenin pathway in OS cells. Treatment with β-catenin small interfering RN...
Source: Biochemistry and Cell Biology - December 3, 2018 Category: Biochemistry Authors: Fan S, Gao X, Chen P, Li X Tags: Biochem Cell Biol Source Type: research

Effect of RAB31 silencing on osteosarcoma cell proliferation and migration through the Hedgehog signaling pathway
In this study, we aimed to explore the functions of Ras-related protein Rab-31 (RAB31) in OS-cell proliferation, migration, and invasion as well as its roles in the Hedgehog signaling pathway for better understanding of the mechanism. To assess the detailed regulatory mechanism of RAB31 silencing on OS, both RT-qPCR and Western blot analysis were employed to evaluate the expressions of RAB31 as well as the Hedgehog signaling pathway-related genes. Besides, we also investigated the effects of silenced RAB31 both in vitro and in vivo. First, we found that in OS tissues, both mRNA and protein expressions of RAB31 and PCNA had...
Source: Journal of Bone and Mineral Metabolism - November 23, 2018 Category: Orthopaedics Source Type: research

hnRNP U and DDX47 Are Novel FANCD2 Interactors That May Help to Resolve R-Loops during Mild Replication Stress
Conclusion: We suggest that FANCD2 protects genome stability by recruiting RNA processing enzymes, including hnRNP U or DDX47, to resolve or prevent accumulation of R-loops induced by transcription-replication collisions during mild replication stress. Thus, our study may provide a novel insight to understand the mechanism of bone marrow failure and leukemogenesis in Fanconi anemia patients.DisclosuresTakaori-Kondo: Bristol-Myers Squibb: Honoraria; Pfizer: Honoraria; Celgene: Honoraria, Research Funding; Novartis: Honoraria; Janssen Pharmaceuticals: Honoraria.
Source: Blood - November 21, 2018 Category: Hematology Authors: Okamoto, Y., Abe, M., Itaya, A., Tomida, J., Takaori-Kondo, A., Taoka, M., Isobe, T., Takata, M. Tags: 508. Bone Marrow Failure: Poster I Source Type: research

Interleukin-22 Promotes Osteosarcoma Cell Proliferation and Invasion via STAT3 Activation.
CONCLUSIONS These results suggest that IL-22 promotes OS cells proliferation and invasion and its effect is mediated by activation of the STAT3 pathway. These findings demonstrate that IL-22 may serve as a promising molecular biomarker for diagnosis and therapy for OS patients. PMID: 30381753 [PubMed - in process]
Source: Medical Science Monitor - November 3, 2018 Category: Research Tags: Med Sci Monit Source Type: research

GSE120512 Transcriptome modulation by loss-of-YAP1/TAZ in SK-N-MC Ewing Sarcoma cells
Contributors : Juan Diaz-Martin ; Laura Romero-PerezSeries Type : Expression profiling by arrayOrganism : Homo sapiensYAP1 (Yes-associated protein 1) and TAZ (transcriptional coactivator with PDZ-binding motif, or WWTR1) are nucleo-cytoplasmic shuttling proteins that can function in the nucleus as transcriptional coactivators. Here we sought to evaluate which genes are regulated by endogenous levels of YAP/TAZ. We compared SK-N-MC cells transfected with a control non-targeting siRNA with cells transfected with a mix of siRNA targeting both YAP and TAZ.
Source: GEO: Gene Expression Omnibus - September 27, 2018 Category: Genetics & Stem Cells Tags: Expression profiling by array Homo sapiens Source Type: research