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https://www.readbyqxmd.com/read/28429830/establishment-and-evaluation-of-a-novel-biomarker-based-nomogram-for-malignant-phaeochromocytomas-and-paragangliomas
#1
Xu Zhong, Lei Ye, TingWei Su, Jing Xie, Weiwei Zhou, Yiran Jiang, Lei Jiang, Guang Ning, Weiqing Wang
OBJECTIVE: No single histological or molecular marker is diagnostic for malignant phaeochromocytomas and paragangliomas (PPGLs). This study aimed to establish and evaluate a prognostic nomogram to improve the prediction of metastatic probability in individual PPGL patients. METHODS: Three hundred and forty-seven consecutive PPGL patients from January 2002 through December 2014 were randomly divided into a training set (n=208) and a validation set (n=139). A multivariate logistic regression analysis of selected prognostic features was performed, and a nomogram to predict metastasis was constructed...
April 21, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28426879/acute-exposure-to-dehp-metabolite-mehp-cause-genotoxicity-mutagenesis-and-carcinogenicity-in-mammalian-chinese-hamster-ovary-cells
#2
Yu-Jung Chang, Chia-Yi Tseng, Pei-Ying Lin, Yu-Chen Chuang, Ming-Wei Chao
Di-(2-ethylhexyl) phthalate (DEHP), the common plasticizer used in the production of polyvinyl chloride, can be converted to the more potent metabolite mono-ethylhexyl phthalate (MEHP). Epidemiological studies have shown an association with elevated induction of rat hepatic cancer and reproductive toxicity in response to MEHP exposure. However, the mechanism of genotoxicity and carcinogenicity induced by MEHP treatment remains unclear. As a means to elucidate the mechanisms of action, lethality and mutagenicity in the adenine phosphoribosyltransferase (aprt+/-) gene induced in several CHO cell types by MEHP were assessed...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28426106/afatinib-versus-gefitinib-in-patients-with-egfr-mutation-positive-advanced-non-small-cell-lung-cancer-overall-survival-data-from-the-phase-iib-lux-lung-7-trial
#3
L Paz-Ares, E-H Tan, K O'Byrne, L Zhang, V Hirsh, M Boyer, J C-H Yang, T Mok, K H Lee, S Lu, Y Shi, D H Lee, J Laskin, D-W Kim, S A Laurie, K Kölbeck, J Fan, N Dodd, A Märten, K Park
Background: In LUX-Lung 7, the irreversible ErbB family blocker, afatinib, significantly improved progression-free survival (PFS), time-to-treatment failure (TTF) and objective response rate (ORR) versus gefitinib in patients with epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). Here, we present primary analysis of mature overall survival (OS) data. Patients and methods: LUX-Lung 7 assessed afatinib 40 mg/day versus gefitinib 250 mg/day in treatment-naïve patients with stage IIIb/IV NSCLC and a common EGFR mutation (exon 19 deletion/L858R)...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28426067/bioinspired-peptosomes-with-programmed-stimuli-responses-for-sequential-drug-release-and-high-performance-anticancer-therapy
#4
Yuan Li, Wei Li, Weier Bao, Bin Liu, Dan Li, Yumeng Jiang, Wei Wei, Fazheng Ren
Combination therapy with enhanced therapeutic and antimetastatic efficacy has become promising for cancer treatment. There is an urgent need to design a co-delivery system to sequentially release the drug pair at desired locations that can increase the intra-tumoral drug concentration and reduce the side effects. Inspired by virus architecture and function, herein, we developed a peptosome (PS)-based co-delivery system, PePm/PS/Curcumin (Cur), for the sequential release of the therapeutic peptide Pe and chemodrug Cur...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28420510/gene-set-based-analysis-of-mucinous-ovarian-carcinoma
#5
Chia-Ming Chang, Peng-Hui Wang, Huann-Cheng Horng
OBJECTIVE: Mucinous ovarian carcinoma (MOC) is an uncommon subtype of epithelial ovarian cancers, and the pathogenesis is still poorly understood because of its rarity. We conducted a gene set-based analysis to investigate the pathogenesis of MOC by integrating microarray gene expression datasets based on the regularity of functions defined by gene ontology or canonical pathway databases. MATERIALS AND METHODS: Forty-five pairs of MOC and normal ovarian tissue sample gene expression profiles were downloaded from the National Center for Biotechnology Information Gene Expression Omnibus database...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28418920/complementary-utility-of-targeted-next-generation-sequencing-and-immunohistochemistry-panels-as-a-screening-platform-to-select-targeted-therapy-for-advanced-gastric-cancer
#6
Hyo Song Kim, Hanna Lee, Su-Jin Shin, Seung-Hoon Beom, Minkyu Jung, Sujin Bae, Eun Young Lee, Kyu Hyun Park, Yoon Young Choi, Taeil Son, Hyoung-Il Kim, Jae-Ho Cheong, Woo Jin Hyung, Jun Chul Park, Sung Kwan Shin, Sang Kil Lee, Yong Chan Lee, Woong Sub Koom, Joon Seok Lim, Hyun Cheol Chung, Sung Hoon Noh, Sun Young Rha, Hyunki Kim, Soonmyung Paik
We tested the clinical utility of combined profiling of Ion Torrent PGM based next-generation sequencing (NGS) and immunohistochemistry (IHC) for assignment to molecularly targeted therapies. A consecutive cohort of 93 patients with advanced/metastatic GC who underwent palliative chemotherapy between March and December 2015 were prospectively enrolled. Formalin fixed paraffin embedded tumor biopsy specimens were subjected to a 10 GC panels [Epstein Barr virus encoding RNA in-situ hybridization, IHC for mismatch repair proteins (MMR; MLH1, PMS2, MSH2, and MSH6), receptor tyrosine kinases (HER2, EGFR, and MET), PTEN, and p53 protein], and a commercial targeted NGS panel of 52 genes (Oncomine Focus Assay)...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417948/erbb-family-signalling-a-paradigm-for-oncogene-addiction-and-personalized-oncology
#7
REVIEW
Nico Jacobi, Rita Seeboeck, Elisabeth Hofmann, Andreas Eger
ErbB family members represent important biomarkers and drug targets for modern precision therapy. They have gained considerable importance as paradigms for oncoprotein addiction and personalized medicine. This review summarizes the current understanding of ErbB proteins in cell signalling and cancer and describes the molecular rationale of prominent cases of ErbB oncoprotein addiction in different cancer types. In addition, we have highlighted experimental technologies for the development of innovative cancer cell models that accurately predicted clinical ErbB drug efficacies...
April 12, 2017: Cancers
https://www.readbyqxmd.com/read/28402449/enhancement-of-trophoblast-differentiation-and-survival-by-low-molecular-weight-heparin-requires-heparin-binding-egf-like-growth-factor
#8
Alan D Bolnick, Jay M Bolnick, Hamid-Reza Kohan-Ghadr, Brian A Kilburn, Omar J Pasalodos, Pankaj K Singhal, Jing Dai, Michael P Diamond, D Randall Armant, Sascha Drewlo
STUDY QUESTION: Does low molecular weight heparin (LMWH) require heparin-binding epidermal growth factor (EGF)-like growth factor (HBEGF) signaling to induce extravillous trophoblast differentiation and decrease apoptosis during oxidative stress? SUMMARY ANSWER: LMWH increased HBEGF expression and secretion, and HBEGF signaling was required to stimulate trophoblast extravillous differentiation, increase invasion in vitro and reduce trophoblast apoptosis during oxidative stress...
April 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28401021/integrated-mrna-and-lncrna-expression-profiling-for-exploring-metastatic-biomarkers-of-human-intrahepatic-cholangiocarcinoma
#9
Lisheng Lv, Miaoyan Wei, Peiyi Lin, Zhisheng Chen, Peng Gong, Zhiwei Quan, Zhaohui Tang
Long noncoding RNAs (lncRNAs) is crucial for various human cancers, but the function and mechanism of lncRNAs is largely unknown in human intrahepatic cholangiocarcinoma (ICC), the second most common liver cancer. In this study, we performed transcriptomic profiling of ICC and normal tissues, and found 2148 lncRNAs and 474 mRNAs were significantly upregulated, whereas 568 lncRNAs and 409 mRNAs were downregulated in ICC tissues. Enrichment analysis suggests these differentially expressed genes mainly focus on response to stimulus, development, and cell proliferation...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28400999/mtor-function-and-therapeutic-targeting-in-breast-cancer
#10
REVIEW
Stephen H Hare, Amanda J Harvey
The mTOR pathway was discovered in the late 1970s after the compound and natural inhibitor of mTOR, rapamycin was isolated from the bacterium Streptomyces hygroscopicus. mTOR is serine/threonine kinase belonging to the phosphoinositide 3-kinase related kinase (PIKK) family. It forms two distinct complexes; mTORC1 and mTORC2. mTORC1 has a key role in regulating protein synthesis and autophagy whilst mTORC2 is involved in regulating kinases of the AGC family. mTOR signaling is often over active in multiple cancer types including breast cancer...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28399526/expression-of-the-erbb-family-of-ligands-and-receptors-in-gastric-cancer
#11
Sun-Ju Byeon, Hye Seung Lee, Min-A Kim, Byung Lan Lee, Woo Ho Kim
OBJECTIVE: Gastric cancer (GC) is the second most common cancer and the third leading cause of cancer-related death in Korea. Alterations in the ERBB (homology to the erythroblastoma viral gene product, v-erbB) receptor family and ERBB-related signaling pathways are frequently observed in GC. However, the roles of the ERBB receptors and their ligands in GC are not well established. METHODS: We evaluated the expression levels of various ERBB receptor ligands (i.e...
April 12, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28394697/genetic-study-of-neuregulin-1-and-receptor-tyrosine-protein-kinase-erbb-4-in-tardive-dyskinesia
#12
Clement C Zai, Arun K Tiwari, Nabilah I Chowdhury, Zeynep Yilmaz, Vincenzo de Luca, Daniel J Müller, Steven G Potkin, Jeffrey A Lieberman, Herbert Y Meltzer, Aristotle N Voineskos, Gary Remington, James L Kennedy
OBJECTIVES: Tardive dyskinesia (TD) is a movement disorder that may develop as a side effect of antipsychotic medication. The aetiology underlying TD is unclear, but a number of mechanisms have been proposed. METHODS: We investigated single-nucleotide polymorphisms (SNPs) in the genes coding for neuregulin-1 and erbB-4 receptor in our sample of 153 European schizophrenia patients for possible association with TD. RESULTS: We found the ERBB4 rs839523 CC genotype to be associated with risk for TD occurrence and increased severity as measured by the Abnormal Involuntary Movement Scale (AIMS) (P = ...
April 10, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28387663/quantitative-parameters-of-contrast-enhanced-ultrasound-in-breast-invasive-ductal-carcinoma-the-correlation-with-pathological-prognostic-factors
#13
Chen-Li Ji, Xiao-Long Li, Ya-Ping He, Dan-Dan Li, Xin-Gang Gu, Hui-Xiong Xu
PURPOSE: To investigate the correlation between quantitative parameters on contrast-enhanced ultrasound (CEUS) and pathological prognostic factors in patients with breast invasive ductal carcinomas (IDCs). MATERIALS AND METHODS: 102 patients with pathologically proven IDCs were retrospectively enrolled and all were preoperatively evaluated by CEUS. Quantitative analysis was conducted using the SonoLiver® software. On the parametric imaging, the data of rise time (RT), time to peak (TTP), mean transit time (mTT) and maximum intensity (IMAX) were recorded...
April 4, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28385276/corrigendum-to-epidermal-growth-factor-cytoplasmic-domain-affects-erbb-protein-degradation-by-the-lysosomal-and-ubiquitin-proteasome-pathway-in-human-cancer-cells-neoplasia-14-2012-396-409
#14
Aleksandra Glogowska, Jörg Stetefeld, Ekkehard Weber, Saeid Ghavami, Cuong Hoang-Vu, Thomas Klonisch
No abstract text is available yet for this article.
April 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28384967/human-epidermal-growth-factor-receptor-3-mrna-expression-as-a-prognostic-marker-for-invasive-duct-carcinoma-not-otherwise-specified
#15
Ghada Ezat Hammoda, Sally Mohammed El-Hefnawy, Asmaa Gaber Abdou, Rania Abdallah Abdallah
INTRODUCTION: Breast cancer is the most common cancer in women and the Erythroblastosis Oncogene B(ErbB) receptor family holds crucial role in its pathogenesis. Human Epidermal Growth Factor Receptor 3 (HER-3) gene over expression in breast tissue has been associated with aggressive clinical behaviour and bad prognosis. AIM: To evaluate HER-3 mRNA expression level as a prognostic marker for breast cancer and to correlate its level with other established prognostic parameters...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28369073/her2-signaling-regulates-her2-localization-and-membrane-retention
#16
Jaekwang Jeong, Wonnam Kim, Lark Kyun Kim, Joshua VanHouten, John J Wysolmerski
ErbB2/HER2/Neu is a receptor tyrosine kinase that is overexpressed in 25-30% of human breast cancers, usually associated with amplification of the ERBB2 gene. HER2 has no recognized ligands and heterodimers between HER2 and EGFR (ErbB1/HER1) or HER2 and ErbB3/HER3 are important in breast cancer. Unlike other ErbB family members, HER2 is resistant to internalization and degradation, and remains at the cell surface to signal for prolonged periods after it is activated. Although the mechanisms underlying retention of HER2 at the cell surface are not fully understood, prior studies have shown that, in order to avoid internalization, HER2 must interact with the chaperone, HSP90, and the calcium pump, PMCA2, within specific plasma membrane domains that protrude from the cell surface...
2017: PloS One
https://www.readbyqxmd.com/read/28366103/methods-of-selecting-combination-therapy-for-colorectal-cancer-patients-a-patent-evaluation-of-us20160025730a1
#17
Daniel Plano, Verónica Alcolea, Carmen Sanmartín, Arun K Sharma
Colorectal cancer (CRC) is the fourth most common cancer worldwide. Targeted therapy drugs (TTDs) are a valid treatment, epithelial growth factor receptor (EGFR) inhibitors being one of the most commonly used for CRC patients. However, this treatment is only useful for patients with wild-type KRAS (wtKRAS) and is effective only on about 40 to 60% of this subset due to the high plasticity of ErbB network. Areas covered: The invention proposes the use of ErbB protein levels and ErbB receptor dimer formation as biomarkers for selecting, predicting and monitoring CRC patients showing sensitivity to the action of EGFR inhibitors to benefit from the combination therapy of EGFR and HER2 inhibitors...
April 1, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28363780/mir-199a-5p-and-mir-495-target-grp78-within-upr-pathway-of-lung-cancer
#18
Azam Ahmadi, Behzad Khansarinejad, Saman Hosseinkhani, Mostafa Ghanei, Seyed Javad Mowla
INTRODUCTION: Non-small cell lung cancer (NSCLC) is the most common subtype of lung cancer. One of the signal transduction pathways related to NSCLC is Unfolded Protein Response (UPR), which is mainly regulated by GRP78 (HSPA5, Gene ID: 3309). The aim of this study was to employ bioinformatics tools to predict microRNAs (miRNAs) affecting GRP78 expression, experimentally validate interaction of these miRNAs with GRP78 and also evaluating the expression correlation of GRP78 and its predicted miRNAs in clinical samples...
March 28, 2017: Gene
https://www.readbyqxmd.com/read/28356518/bcl6-promotes-glioma-and-serves-as-a-therapeutic-target
#19
Liang Xu, Ye Chen, Marina Dutra-Clarke, Anand Mayakonda, Masaharu Hazawa, Steve E Savinoff, Ngan Doan, Jonathan W Said, William H Yong, Ashley Watkins, Henry Yang, Ling-Wen Ding, Yan-Yi Jiang, Jeffrey W Tyner, Jianhong Ching, Jean-Paul Kovalik, Vikas Madan, Shing-Leng Chan, Markus Müschen, Joshua J Breunig, De-Chen Lin, H Phillip Koeffler
ZBTB transcription factors orchestrate gene transcription during tissue development. However, their roles in glioblastoma (GBM) remain unexplored. Here, through a functional screening of ZBTB genes, we identify that BCL6 is required for GBM cell viability and that BCL6 overexpression is associated with worse prognosis. In a somatic transgenic mouse model, depletion of Bcl6 inhibits the progression of KrasG12V-driven high-grade glioma. Transcriptome analysis demonstrates the involvement of BCL6 in tumor protein p53 (TP53), erythroblastic leukemia viral oncogene homolog (ErbB), and MAPK signaling pathways...
March 29, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28339086/identification-of-novel-mutations-in-endometrial-cancer-patients-by-whole-exome-sequencing
#20
Ya-Sian Chang, Hsien-Da Huang, Kun-Tu Yeh, Jan-Gowth Chang
The aim of the present study was to identify genomic alterations in Taiwanese endometrial cancer patients. This information is vitally important in Taiwan, where endometrial cancer is the second most common gynecological cancer. We performed whole-exome sequencing on DNA from 14 tumor tissue samples from Taiwanese endometrial cancer patients. We used the Genome Analysis Tool kit software package for data analysis, and the dbSNP, Catalogue of Somatic Mutations in Cancer (COSMIC) and The Cancer Genome Atlas (TCGA) databases for comparisons...
March 20, 2017: International Journal of Oncology
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