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https://www.readbyqxmd.com/read/28782717/in-silico-approaches-for-unveiling-novel-glycobiomarkers-in-cancer
#1
Rita Azevedo, André M N Silva, Celso A Reis, Lúcio Lara Santos, José Alexandre Ferreira
Glycosylation is one of the most common and dynamic post-translational modification of cell surface and secreted proteins. Cancer cells display unique glycosylation patterns that decisively contribute to drive oncogenic behavior, including disease progression and dissemination. Moreover, alterations in glycosylation are often responsible for the creation of protein signatures holding significant biomarker value and potential for targeted therapeutics. Accordingly, many analytical protocols have been outlined for the identification of abnormally glycosylated proteins by mass spectrometry...
August 4, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28774262/parallel-multiple-instance-learning-for-extremely-large-histopathology-image-analysis
#2
Yan Xu, Yeshu Li, Zhengyang Shen, Ziwei Wu, Teng Gao, Yubo Fan, Maode Lai, Eric I-Chao Chang
BACKGROUND: Histopathology images are critical for medical diagnosis, e.g., cancer and its treatment. A standard histopathology slice can be easily scanned at a high resolution of, say, 200,000×200,000 pixels. These high resolution images can make most existing imaging processing tools infeasible or less effective when operated on a single machine with limited memory, disk space and computing power. RESULTS: In this paper, we propose an algorithm tackling this new emerging "big data" problem utilizing parallel computing on High-Performance-Computing (HPC) clusters...
August 3, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28767418/cancer-specific-evaluation-system-canes-a-high-accuracy-platform-for-preclinical-single-multi-biomarker-discovery
#3
Min-Seok Kwon, Seungyoon Nam, Sungyoung Lee, Young Zoo Ahn, Hae Ryung Chang, Yon Hui Kim, Taesung Park
The recent creation of enormous, cancer-related "Big Data" public depositories represents a powerful means for understanding tumorigenesis. However, a consistently accurate system for clinically evaluating single/multi-biomarkers remains lacking, and it has been asserted that oft-failed clinical advancement of biomarkers occurs within the very early stages of biomarker assessment. To address these challenges, we developed a clinically testable, web-based tool, CANcer-specific single/multi-biomarker Evaluation System (CANES), to evaluate biomarker effectiveness, across 2,134 whole transcriptome datasets, from 94,147 biological samples (from 18 tumor types)...
July 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28766230/clinical-relevance-of-microrna-expressions-in-breast-cancer-validated-using-the-cancer-genome-atlas-tcga
#4
Sara Y Kim, Tsutomu Kawaguchi, Li Yan, Jessica Young, Qianya Qi, Kazuaki Takabe
BACKGROUND: MicroRNAs (miRNAs) play a critical role in the carcinogenesis and progression of breast cancer. MiRNA-205 has tumor suppressive properties, whereas miRNA-18a has both oncogenic and tumor suppressive roles. MiRNA-744's role in breast cancer is unknown but is tumor-suppressive in vitro. We hypothesize that high expression of all three miRNAs is associated with a better survival based on their known functions in breast cancer. METHODS: All data was obtained from the Cancer Genome Atlas (TCGA)...
August 1, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28759388/genomic-approaches-to-accelerate-cancer-interception
#5
REVIEW
Jennifer Beane, Joshua D Campbell, Julian Lel, Jessica Vick, Avrum Spira
Although major advances have been reported in the last decade in the treatment of late-stage cancer with targeted and immune-based therapies, there is a crucial unmet need to develop new approaches to improve the prevention and early detection of cancer. Advances in genomics and computational biology offer unprecedented opportunities to understand the earliest molecular events associated with carcinogenesis, enabling novel strategies to intercept the development of invasive cancers. This Series paper will highlight emerging big data genomic approaches with the potential to accelerate advances in cancer prevention, screening, and early detection across various tumour types, and the challenges inherent in the development of these tools for clinical use...
August 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28758434/-human-papillomavirus-associated-cervix-uteri-morbidity-in-hungary-epidemiology-and-correlation-with-the-hpv-types-and-the-simultaneous-cytological-diagnosis
#6
Zoltán Szentirmay, Zsuzsa Veleczki, Miklós Kásler
INTRODUCTION: Persistent infection of human papillomavirus is known to cause cervical intraepithelial neoplasia or cancer in the cervix uteri and other HPV-associated cancers in different localization. Based on epidemiological and biological data, principally the high risk HPV is responsible for development of cervical these cancers. However, we have no information about the frequently distribution of different HPV types and what is the correlation between the HPV types and cytological diagnosis in cervical intraepithelial neoplasia (CIN)...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28757458/a-computational-integrative-approach-based-on-alternative-splicing-analysis-to-compare-immortalized-and-primary-cancer-cells
#7
Kumar Parijat Tripathi, Ilaria Granata, Mario Rosario Guarracino
Immortalized cell lines are widely used to study the effectiveness and toxicity of anti cancer drugs as well as to assess the phenotypic characteristics of cancer cells, such as proliferation and migration ability. Unfortunately, cell lines often show extremely different properties than tumor tissues. Also the primary cells, that are deprived of the in vivo environment, might adapt to artificial conditions, and differ from the tissue they should represent. Despite these considerations, cell lines are still one of the most used cancer models due to their availability and capability to expand without limitation, but the clinical relevance of their use is still a big issue in cancer research...
July 27, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28747984/annual-tendency-of-research-papers-used-icr-mice-as-experimental-animals-in-biomedical-research-fields
#8
Ji Eun Kim, Jung Hoon Nam, Joon Young Cho, Kil Soo Kim, Dae Youn Hwang
Institute of Cancer Research (ICR) mice have been widely used in various research fields including toxicology, oncology, pharmacology, and pharmaceutical product safety testing for decades. However, annual tendency of research papers involving ICR mice in various biomedical fields has not been previously analyzed. In this study, we examined the numbers of papers that used ICR mice as experimental animals in the social science, natural science, engineering, medicine-pharmacy, marine agriculture-fishery, and art-kinesiology fields by analyzing big data...
June 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28736658/3d-reconstruction-of-cystoscopy-videos-for-comprehensive-bladder-records
#9
Kristen L Lurie, Roland Angst, Dimitar V Zlatev, Joseph C Liao, Audrey K Ellerbee Bowden
White light endoscopy is widely used for diagnostic imaging of the interior of organs and body cavities, but the inability to correlate individual 2D images with 3D organ morphology limits its utility for quantitative or longitudinal studies of disease physiology or cancer surveillance. As a result, most endoscopy videos, which carry enormous data potential, are used only for real-time guidance and are discarded after collection. We present a computational method to reconstruct and visualize a 3D model of organs from an endoscopic video that captures the shape and surface appearance of the organ...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28730217/novel-perspectives-on-gastrointestinal-stromal-tumors-gists
#10
Bogdan Stelian Mastalier Manolescu, Cristiana Gabriela Popp, Valentin Popescu, Dan Andraş, Sabina Andrada Zurac, Costin Berceanu, Aida TincuŢa Petca
Since they were described, gastrointestinal stromal tumors (GISTs) are, for pathologists and not only for them, a subject of controversy regarding histological origin, differentiation, nomenclature, malignant potential and prognosis. Before 1998, there were no certainties that GISTs were fundamentally different from other types of abdominal cancers in the big family of mesenchymal tumors. Before the discovery of KIT gene mutations, GISTs were most often classified as leiomyoma, leiomyosarcoma, leiomyoblastoma, and gastrointestinal autonomic nerve tumor...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28724216/the-extract-from-punica-granatum-pomegranate-peel-induces-apoptosis-and-impairs-metastasis-in-prostate-cancer-cells
#11
Yuanle Deng, Yali Li, Fangfang Yang, Anqi Zeng, Shuping Yang, Yi Luo, Yiwen Zhang, Yongmei Xie, Tinghong Ye, Yong Xia, Wenya Yin
Prostate cancer is a big threat to male for its poor prognosis and high mortality rate. Natural compounds are important resources of many anticancer drugs. Pomegranate is a kind of antioxidant-rich fruit and its peel and seed has potential anticancer activities. In this study, we aimed to investigate the effects of pomegranate peel extract (PoPx) on the apoptosis and metastasis of prostate cancer cells and the related mechanism. We found that PoPx showed growth inhibition on prostate cancer cells. Nuclei morphological and flow cytometer (FCM) analysis indicated that PoPx could induce prostate cancer apoptosis...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28707167/supportive-care-for-patients-undergoing-immunotherapy
#12
Bernardo Leon Rapoport, Ronwyn van Eeden, Vincent Sibaud, Joel B Epstein, Jean Klastersky, Matti Aapro, Devan Moodley
Immune checkpoint inhibitors, a new class of cancer therapeutic agents, play an important role in the management of melanoma, NSCLC, and other malignancies. A workshop organized by three MASCC Study Groups: Oral Care, Skin Toxicities, and Neutropenia, Infection, and Myelosuppression during the MASCC Annual Meeting held in Adelaide, Australia on 23-25 June, 2016 focused on the new class of anti-cancer therapeutic agents. Topics in the workshop included the mechanism of action and clinical uses of immune anti-CTL4 and anti-PD1 antibodies, checkpoint inhibitor toxicities, including skin adverse events, gastrointestinal toxicities, oral complications, pulmonary toxicities, and endocrinological and immune-related infections...
July 13, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28704821/application-of-the-drugevar-database-in-cancer-genomics-and-pharmacogenomics
#13
Konstantinos Sarris, Angeliki Komianou, George P Patrinos, Theodora Katsila
In the post-genomic era, there is an increasing and urgent need for managing and visualizing big data. Data complexity and size will turn information growth into knowledge growth only if presented in a comprehensive and user-friendly way. In such a context, the information technology community collaborates in a multidisciplinary manner with other scientific fields searching for and/or developing tools and services for data management and visualization. We have previously developed DruGeVar, a comprehensive database that triangulates drugs with genes and pharmacogenomic biomarkers to serve clinical pharmacogenomics...
July 14, 2017: Public Health Genomics
https://www.readbyqxmd.com/read/28691016/analysis-and-modeling-for-big-data-in-cancer-research
#14
EDITORIAL
Bing Niu, Jianxin Li, Guozheng Li, Simon Poon, Peter B Harrington
No abstract text is available yet for this article.
2017: BioMed Research International
https://www.readbyqxmd.com/read/28686224/a-balanced-risk-benefit-analysis-to-determine-human-risks-associated-with-pyrrolizidine-alkaloids-pa-the-case-of-tea-and-herbal-infusions
#15
REVIEW
Michael Habs, Karin Binder, Stefan Krauss, Karolina Müller, Brigitte Ernst, Luzia Valentini, Michael Koller
Humans are exposed to pyrrolizidine alkaloids (PA) through different sources, mainly from contaminated foodstuff. Teas and herbal infusions (T&HI) can be contaminated by PA producing weed. PA can possess toxic, mutagenic, genotoxic, and carcinogenic properties. Thus, possible health risks for the general population are under debate. There is a strong safety record for T&HI and additionally epidemiological evidence for the preventive effects of regular tea consumption on cardiovascular events and certain types of cancer...
July 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28675414/nanotekniken-kan-revolutionera-behandlingen-av-cancer-ger-nya-m%C3%A3-jligheter-att-m%C3%A3-lstyra-l%C3%A3-kemedel-men-flera-stora-utmaningar-%C3%A3-terst%C3%A3-r-att-tackla
#16
Matthias Löhr, Wouter van der Wijngaart, Björn Fagerberg
Nanoparticles for cancer therapy Nanoparticles carry a big promise in oncology, for diagnosis/imaging, therapy, or both (theragnostics). As common in medical history, there is a huge gap between the exciting experimental possibilities and data and clinical studies making use of it. Of the cell-containing nanoparticles, only one formulation using gene-directed enzyme prodrug therapy (GDEPT) with CYP2B1 and ifosfamide was used in early clinical studies. Of the cell-free nanoparticles, some drug-releasing (doxorubicin) ones are in clinical use for trans-arterial chemo-embolization (TACE) in liver tumors and metastasis...
July 3, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28665855/lower-eyelid-reconstruction-after-ablation-of-skin-malignancies-how-far-can-we-get-in-a-single-stage-procedure
#17
Yordan Petrov Yordanov, Aylin Shef
: Reconstruction of full-thickness lower eyelid defects tends to be a devastating procedure, especially when big amount of tissue has to be removed because of oncological reasons. The applied techniques are mostly difficult to execute and multistaged, often require extensive dissection, and result in scarring and facial disfigurement.The aim of the present study is to demonstrate the authors' experience in single-staged reconstructions of full-thickness defects of the lower eyelid with local tissue only. MATERIAL AND METHODS: A retrospective analysis was conducted identifying patients with postexcisional defects after skin cancer occurring in the lower eyelid, reconstructed in 1 stage...
June 29, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28655303/knowledge-attitudes-and-values-among-physicians-working-with-clinical-genomics-a-survey-of-medical-oncologists
#18
Peter Chow-White, Dung Ha, Janessa Laskin
BACKGROUND: It has been over a decade since the completion of the Human Genome Project (HGP), genomic sequencing technologies have yet to become parts of standard of care in Canada. This study investigates medical oncologists' (MOs) genomic literacy and their experiences based on their participation in a cancer genomics trial in British Columbia, Canada. METHODS: The authors conducted a survey of MOs from British Columbia, Canada (n = 31, 52.5% response rate), who are actively involved in a clinical genomics trial called Personalized Onco-Genomics (POG)...
June 27, 2017: Human Resources for Health
https://www.readbyqxmd.com/read/28632968/perspective-on-precision-medicine-in-oncology
#19
Tali M Johnson
The topic of precision medicine is increasingly more prevalent in the general medical literature with oncology research leading the way. Many factors, such as, availability of targeted drugs, advances in laboratory science, and improved information systems, converged to make precision medicine research possible on a large scale at the National Cancer Institute. The resultant big data will spur new kinds of research in the decades to come, but until then, all clinicians are challenged to make sense of an overabundance of information when managing individual patients...
June 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28628188/silencing-of-bag3-promotes-the-sensitivity-of-ovarian-cancer-cells-to-cisplatin-via-inhibition-of-autophagy
#20
Shuang Qiu, Liang Sun, Ye Jin, Qi An, Changjiang Weng, Jianhua Zheng
Ovarian cancer is the most lethal disease among all gynecological malignancies. Interval cytoreductive surgery and cisplatin‑based chemotherapy are the recommended therapeutic strategies. However, acquired resistance to cisplatin remains a big challenge for the overall survival and prognosis in ovarian cancer. Complicated molecular mechanisms are involved in the process. At present, increasing evidence indicates that autophagy plays an important role in the prosurvival and resistance against chemotherapy...
July 2017: Oncology Reports
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