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https://www.readbyqxmd.com/read/29053887/low-foxg1-and-high-olig-2-labelling-indices-define-a-prognostically-favorable-subset-in-idh-mutant-gliomas
#1
Sarah Schäfer, Felix Behling, Marco Skardelly, Marilin Koch, Ines Ott, Frank Paulsen, Ghazaleh Tabatabai, Jens Schittenhelm
AIMS: Previous data suggest that expression of transcription factors FoxG1 and Olig-2 can separate hotspot H3F3A-mutant tumors in pediatric glioma. We evaluated their prognostic potential and feasibility for identifying H3F3A-mutant tumors among IDH-mutant/wildtype gliomas. METHODS: Immunohistochemistry of FoxG1/Olig-2 and ATRX in 471 cases of diffuse gliomas and molecular determination of IDH, H3F3A, MGMT and 1p/19 codeletion status. RESULTS: Mean percentage of FoxG1 positive tumor cells increased from 17% in WHO grade II to over 21% in grade III to 37% in grade IV tumors, while mean Olig-2 indices decreased from 29% to 28% to 17% respectively...
October 20, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29053755/micrornas-expression-profile-in-solid-and-unicystic-ameloblastomas
#2
A Setién-Olarra, X Marichalar-Mendia, N G Bediaga, P Aguirre-Echebarria, J M Aguirre-Urizar, A Mosqueda-Taylor
OBJECTIVES: Odontogenic tumors (OT) represent a specific pathological category that includes some lesions with unpredictable biological behavior. Although most of these lesions are benign, some, such as the ameloblastoma, exhibit local aggressiveness and high recurrence rates. The most common types of ameloblastoma are the solid/multicystic (SA) and the unicystic ameloblastoma (UA); the latter considered a much less aggressive entity as compared to the SA. The microRNA system regulates the expression of many human genes while its deregulation has been associated with neoplastic development...
2017: PloS One
https://www.readbyqxmd.com/read/29052609/neuro-ophthalmic-side-effects-of-molecularly-targeted-cancer-drugs
#3
REVIEW
M T Bhatti, A K S Salama
The past two decades has been an amazing time in the advancement of cancer treatment. Molecularly targeted therapy is a concept in which specific cellular molecules (overexpressed, mutationally activated, or selectively expressed proteins) are manipulated in an advantageous manner to decrease the transformation, proliferation, and/or survival of cancer cells. In addition, increased knowledge of the role of the immune system in carcinogenesis has led to the development of immune checkpoint inhibitors to restore and enhance cellular-mediated antitumor immunity...
October 20, 2017: Eye
https://www.readbyqxmd.com/read/29052527/negative-genic-switch-of-her-2-in-the-primary-tumor-instead-of-the-synchronous-metastatic-nodal-lesions-after-neoadjuvant-chemotherapy-in-a-patient-with-primary-her2-positive-breast-cancer
#4
Hao-Ran Chen, Yu-Tuan Wu, Qiu-Bo Yu, Ya-Ying Yang, Yu-Xian Wei, Hong-Yuan Li, Kai-Nan Wu, Ling-Quan Kong
BACKGROUND: A few retrospective studies have indicated that neoadjuvant chemotherapy (NAC) in breast cancer may change biomarker profiles of the primary tumor. Little is known about the status of HER-2 gene of the synchronous nodal metastases when that of the residual tumor undergoes negative conversion in a neoadjuvant setting. CASE PRESENTATION: We describe a female patient with left breast cancer (T2N2M0) who underwent negative conversion of HER-2 in the primary tumor instead of the synchronous nodal lesions after NAC...
October 19, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29052520/upregulation-of-dars2-by-hbv-promotes-hepatocarcinogenesis-through-the-mir-30e-5p-mapk-nfat5-pathway
#5
Xian Qin, Changsheng Li, Tao Guo, Jing Chen, Hai-Tao Wang, Yi-Tao Wang, Yu-Sha Xiao, Jun Li, Pengpeng Liu, Zhi-Su Liu, Quan-Yan Liu
BACKGROUND: Infection with the hepatitis B virus (HBV) is closely associated with the development of hepatocellular carcinoma (HCC). The osmoregulatory transcription factor nuclear factor of activated T-cells 5 (NFAT5) has been shown to play an important role in the development of many types of human cancers. The role of NFAT5 in HBV-associated HCC has never previously been investigated. METHODS: We compared expression profiles of NFAT5, DARS2 and miR-30e-5p in HCC samples, adjacent nontumor tissues and different hepatoma cell lines by quantitative real-time polymerase chain reaction and /or Western blot...
October 19, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29052514/five-fraction-sbrt-for-ultra-central-nsclc-in-field-recurrences-following-high-dose-conventional-radiation
#6
Michael C Repka, Nima Aghdam, Shaan K Kataria, Lloyd Campbell, Simeng Suy, Sean P Collins, Eric Anderson, Jonathan W Lischalk, Brian T Collins
PURPOSE/OBJECTIVE: Local treatment options for patients with in-field non-small cell lung cancer (NSCLC) recurrence following conventionally fractionated external beam radiation therapy (CF-EBRT) are limited. Stereotactic body radiation therapy (SBRT) is a promising modality to achieve reasonable local control, although toxicity remains a concern. MATERIALS/METHODS: Patients previously treated with high-dose CF-EBRT (≥59.4 Gy, ≤3 Gy/fraction) for non-metastatic NSCLC who underwent salvage SBRT for localized ultra-central in-field recurrence were included in this analysis...
October 19, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29051537/microarray-gene-expression-of-periosteum-in-spontaneous-bone-regeneration-of-mandibular-segmental-defects
#7
Zheyi Li, Juli Pan, Jinling Ma, Zhen Zhang, Yuxing Bai
Spontaneous bone regeneration could occur to reestablish mandibular bony continuity in patients who underwent partial or total mandibulectomy for tumors with periosteum-preserving. However, scarce data is available related to the precise role of periosteum in this bone regeneration. Therefore we aimed to investigate the gene expression of periosteum that were involved in the mandibular bone regeneration. Mandibular segmental defects were created in six mini-pigs with periosteum preserved. The periosteum of defects and control site were harvested at 1 and 2 weeks...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051534/surface-marker-profiling-of-sh-sy5y-cells-enables-small-molecule-screens-identifying-bmp4-as-a-modulator-of-neuroblastoma-differentiation
#8
Fraua Christina Ferlemann, Vishal Menon, Alexandra Larisa Condurat, Jochen Rößler, Jan Pruszak
Neuroblastoma is the most common extra-cranial solid tumor in children. Its broad spectrum of clinical outcomes reflects the underlying inherent cellular heterogeneity. As current treatments often do not lead to tumor eradication, there is a need to better define therapy-resistant neuroblastoma and to identify new modulatory molecules. To this end, we performed the first comprehensive flow cytometric characterization of surface molecule expression in neuroblastoma cell lines. Exploiting an established clustering algorithm (SPADE) for unbiased visualization of cellular subsets, we conducted a multiwell screen for small molecule modulators of neuroblastoma phenotype...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29051346/data-driven-prioritization-and-review-of-targets-for-molecular-based-theranostic-approaches-in-pancreatic-cancer
#9
Marjory Koller, Elmire Hartmans, Derk Jan A de Groot, Xiao Juan Zhao, Gooitzen Michell van Dam, Wouter Nagengast, Rudolf S N Fehrmann
Molecular targeted therapeutical and imaging strategies directed at aberrant signaling-pathways in pancreatic tumor cells may improve the poor outcome of pancreatic ductal adenocarcinoma (PDA). Therefore, relevant molecular targets need to be identified. Methods: We collected publicly available expression profiles of patient derived normal pancreatic tissue (n = 77) and PDA samples (n = 103). Functional Genomic mRNA (FGmRNA) profiling was applied to predict target upregulation on the protein level. We prioritized these targets based on current status of (pre)-clinical therapeutical and imaging evaluation in PDA...
October 19, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29051215/kinome-and-transcriptome-profiling-reveal-broad-and-distinct-activities-of-erlotinib-sunitinib-and-sorafenib-in-the-mouse-heart-and-suggest-cardiotoxicity-from-combined-signal-transducer-and-activator-of-transcription-and-epidermal-growth-factor-receptor-inhibition
#10
Timothy J Stuhlmiller, Jon S Zawistowski, Xin Chen, Noah Sciaky, Steven P Angus, Sean T Hicks, Traci L Parry, Wei Huang, Ju Youn Beak, Monte S Willis, Gary L Johnson, Brian C Jensen
BACKGROUND: Most novel cancer therapeutics target kinases that are essential to tumor survival. Some of these kinase inhibitors are associated with cardiotoxicity, whereas others appear to be cardiosafe. The basis for this distinction is unclear, as are the molecular effects of kinase inhibitors in the heart. METHODS AND RESULTS: We administered clinically relevant doses of sorafenib, sunitinib (cardiotoxic multitargeted kinase inhibitors), or erlotinib (a cardiosafe epidermal growth factor receptor inhibitor) to mice daily for 2 weeks...
October 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29050620/safe-therapeutics-of-murine-melanoma-model-using-a-novel-antineoplasic-the-partially-methylated-mannogalactan-from-pleurotus-eryngii
#11
S M P Biscaia, E R Carbonero, D L Bellan, B S Borges, C R Costa, G R Rossi, J P Gonçalves, C M Melo, F A R Lívero, A C Ruthes, R Zotz, E V Silva, C C Oliveira, A Acco, H B Nader, R Chammas, M Iacomini, C R C Franco, E S Trindade
A heteropolysaccharide was isolated by cold aqueous extraction from edible mushroom Pleurotus eryngii ("King Oyster") basidiocarps and its biological properties were evaluated. Structural assignments were carried out using mono- and bidimensional NMR spectroscopy, monosaccharide composition, and methylation analyses. A mannogalactan having a main chain of (1→6)-linked α-d-galactopyranosyl and 3-O-methyl-α-d-galactopyranosyl residues, both partially substituted at OH-2 by β-d-Manp (MG-Pe) single-unit was found...
December 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29050582/ph-sensitive-carboxymethyl-chitosan-hydrogels-via-acid-labile-ortho-ester-linkage-for-potential-biomedical-applications
#12
Liefeng Hu, Panpan Zhang, Xin Wang, Xu Cheng, Jiejie Qin, Rupei Tang
Hydrogel systems with favorable biocompatibility and biodegradability are of much interest for application in biomaterials and tissue engineering. In this study, a new ortho ester-based acid-labile crosslink agent with dual-epoxy end groups was synthesized and crosslinked with carboxymethyl chitosan (CMCS) at different molar ratios to prepare a series of pH-sensitive hydrogels for drug delivering. Doxorubicin (DOX) was then readily loaded into the hydrogels and the in vitro release profiles indicated that the release rate increased rapidly while pH decreased from 7...
December 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29050344/microrna-141-3p-promotes-glioma-cell-growth-and-temozolomide-resistance-by-directly-targeting-p53
#13
Xu Zhou, Weining Wu, Ailiang Zeng, Er Nie, Xin Jin, Tianfu Yu, Tongle Zhi, Kuan Jiang, Yingyi Wang, Junxia Zhang, Yongping You
Glioblastoma multiforme is the most common primary malignancy in the brain and confers a uniformly poor prognosis. MicroRNAs have been shown to activate or inhibit tumorigenesis. Abnormalities in the p53 signaling pathway are found in various cancers and correlate with tumor formation. We examined the expression of microRNA-141-3p (miR-141-3p) in glioma of different grades by analysis of expression profiling databases and clinical specimens. Cell proliferation and flow cytometry assays were performed to evaluate the promotion of miR-141-3p in proliferation, cell cycle, apoptosis, and temozolomide resistance of glioblastoma cells in vitro...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050338/tumor-infiltrating-b-cells-producing-antitumor-active-immunoglobulins-in-resected-hcc-prolong-patient-survival
#14
Stefan M Brunner, Timo Itzel, Christoph Rubner, Rebecca Kesselring, Eva Griesshammer, Matthias Evert, Andreas Teufel, Hans J Schlitt, Stefan Fichtner-Feigl
BACKGROUND & AIMS: The immunological microenvironment of HCC influences patient outcome, however, the role of B cells remains unclear. This study investigated effects of local B-cell infiltration in HCC cohorts on patient survival and immunological and molecular tumor microenvironment. RESULTS: Unsupervised gene expression analysis of full cancer transcriptomes (N=2158) revealed a highly co-regulated immunological cluster in HCC that mainly contained immunoglobulin fragments...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050278/identification-of-core-genes-and-outcome-in-gastric-cancer-using-bioinformatics-analysis
#15
Chenhua Sun, Qi Yuan, Dongdong Wu, Xiaohu Meng, Baolin Wang
Gastric cancer (GC) is a common malignant neoplasm of gastrointestinal tract. We chose gene expression profile of GSE54129 from GEO database aiming to find key genes during the occurrence and development of GC. 132 samples, including 111 cancer and 21 normal gastric mucosa epitheliums, were included in this analysis. Differentially expressed genes (DEGs) between GC patients and health people were picked out using GEO2R tool, then we performed gene ontology (GO) analysis and Kyoto Encyclopedia of Gene and Genome (KEGG) pathway analysis using The Database for Annotation, Visualization and Integrated Discovery (DAVID)...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050253/differential-expression-of-exosomal-mirnas-between-breast-cancer-patients-with-and-without-recurrence
#16
Aiko Sueta, Yutaka Yamamoto, Mai Tomiguchi, Takashi Takeshita, Mutsuko Yamamoto-Ibusuki, Hirotaka Iwase
BACKGROUND: Exosomal microRNAs (miRNAs) are promising candidate biomarkers for diagnosis or prognosis for breast cancer. We investigated the prognostic role of exosomal miRNAs in serum samples derived from patients with breast cancer and compared miRNA expression between serum and tumor tissues. METHODS: The miRNA profile derived from exosome between breast cancer patients with recurrence (n = 16) and without recurrence (n = 16) were compared by miRNA PCR array...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050249/profiling-cancer-associated-genetic-alterations-and-molecular-classification-of-cancer-in-korean-gastric-cancer-patients
#17
Yoonjung Kim, Mee-Yon Cho, Juwon Kim, Sung Nam Kim, Seoung Chul Oh, Kyung-A Lee
Recently, the Cancer Genome Atlas (TCGA) Research Network and Asian Cancer Research Group provided a new classification of gastric cancer (GC) to aid the development of biomarkers for targeted therapy and predict prognosis. We studied associations between genetically aberrant profiles of cancer-related genes, environmental factors, and histopathological features in 107 paired gastric tumor-non-tumor tissue GC samples. 6.5% of our GC cases were classified as the EBV subtype, 17.8% as the MSI subtype, 43.0% as the CIN subtype, and 32...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050230/a-potential-panel-of-two-long-non-coding-rna-signature-to-predict-recurrence-of-patients-with-laryngeal-cancer
#18
Zhigang Bai, Enhong Shi, Qiwei Wang, Zhouwei Dong, Ping Xu
Accumulating evidence has shown that aberrant lncRNA expression plays an oncogenic or tumor-suppressive role in the tumorigenesis of laryngeal cancer. However, the prognostic roles of lncRNAs in laryngeal cancer recurrence are still poorly understood. In this study, we obtained lncRNA expression profiles of 109 patients with laryngeal cancer by mining previously published gene expression microarray data from the Gene Expression Omnibus (GEO) and identified two lncRNAs associated with laryngeal cancer recurrence in the training dataset by using Cox regression analysis...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050071/-poorly-differentiated-chordoma-with-ini1-loss-a-clinicopathologic-study
#19
J Y Feng, L Chen, Y Y Ma, H W Yang, L Chen
Objective: To analyze the clinicopathologic characteristics of poorly-differentiated chordoma with INI1 loss in children and to discuss the differential diagnosis. Methods: The clinical, radiological, histopathological profiles and molecular pathologic characteristics of two pediatric poorly differentiated chordoma cases with INI1 loss were reviewed. Results: The patients were a girl and a boy. Both lesions involved the slope. Both patients were presented with progressive muscle weakness or neck pain. Radiological examination showed clivus bone destruction and compression of the brain stem and cervical spinal cord...
October 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29049847/neurofibromatosis-type-1-and-optic-pathway-glioma-molecular-interplay-and-therapeutic-insights
#20
REVIEW
Soumen Khatua, David H Gutmann, Roger J Packer
Children with neurofibromatosis type 1 (NF1) are predisposed to develop central nervous system neoplasms, the most common of which are low-grade gliomas (LGGs). The absence of human NF1 associated LGG-derived cell lines, coupled with an inability to generate patient-derived xenograft models, represents barriers to profile molecularly targeted therapies for these tumors. Thus, genetically engineered mouse models have been identified to evaluate the interplay between Nf1-deficient tumor cells and nonneoplastic stromal cells to evaluate potential therapies for these neoplasms...
October 19, 2017: Pediatric Blood & Cancer
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