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Imaging biomarker cancer

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https://www.readbyqxmd.com/read/28732160/color-encoded-assays-for-the-simultaneous-quantification-of-dual-cancer-biomarkers
#1
Jun Ma, Lei Zhan, Rong Sheng Li, Peng Fei Gao, Cheng Zhi Huang
For the first time, the scattering light of noble nanoparticles was applied for the simultaneous detection of dual cancer biomarkers. Two nanoprobes with dual scattering light colors were used for the simultaneous imaging of alpha-fetoprotein (AFP) and carcinoembryonic antigen (CEA) based on the sandwich-type immunoassay. Since AFP can combine anti-AFP-modified gold nanoparticles which have green scattering light under dark-field microscopic imaging (iDFM) technique while CEA can conjugate anti-CEA-immobilized silver nanoparticles which have blue scattering light, the simultaneous determination of AFP and CEA can be achieved by separately counting the number of green and blue light spots in iDFM technique...
July 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28731408/defining-the-biological-basis-of-radiomic-phenotypes-in-lung-cancer
#2
Patrick Grossmann, Olya Stringfield, Nehme El-Hachem, Marilyn M Bui, Emmanuel Rios Velazquez, Chintan Parmar, Ralph Th Leijenaar, Benjamin Haibe-Kains, Philippe Lambin, Robert Gillies, Hugo Jwl Aerts
Medical imaging can visualize characteristics of human cancer noninvasively. Radiomics is an emerging field that translates these medical images into quantitative data to enable phenotypic profiling of tumors. While radiomics has been associated with several clinical endpoints, the complex relationships of radiomics, clinical factors, and tumor biology are largely unknown. To this end, we analyzed two independent cohorts of respectively 262 North American and 89 European patients with lung cancer, and consistently identified previously undescribed associations between radiomic imaging features, molecular pathways, and clinical factors...
July 21, 2017: ELife
https://www.readbyqxmd.com/read/28729729/a-novel-methodology-using-ct-imaging-biomarkers-to-quantify-radiation-sensitivity-in-the-esophagus-with-application-to-clinical-trials
#3
Joshua S Niedzielski, Jinzhong Yang, Francesco Stingo, Zhongxing Liao, Daniel Gomez, Radhe Mohan, Mary Martel, Tina Briere, Laurence Court
Personalized cancer therapy seeks to tailor treatment to an individual patient's biology. Therefore, a means to characterize radiosensitivity is necessary. In this study, we investigated radiosensitivity in the normal esophagus using an imaging biomarker of radiation-response and esophageal toxicity, esophageal expansion, as a method to quantify radiosensitivity in 134 non-small-cell lung cancer patients, by using K-Means clustering to group patients based on esophageal radiosensitivity. Patients within the cluster of higher response and lower dose were labelled as radiosensitive...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28726081/psoas-muscle-volume-as-a-predictor-of-peripheral-neurotoxicity-induced-by-primary-chemotherapy-in-ovarian-cancers
#4
Tomoyuki Yoshikawa, Masashi Takano, Morikazu Miyamoto, Isao Yajima, Yukihiro Shimizu, Yusuke Aizawa, Yuki Suguchi, Miki Moriiwa, Tadashi Aoyama, Hiroaki Soyama, Tomoko Goto, Junko Hirata, Ayako Suzuki, Hidenori Sasa, Isao Nagaoka, Hitoshi Tsuda, Kenichi Furuya
PURPOSE: Low skeletal muscle mass (sarcopenia) has been reported to have an influence on survival and toxicities of chemotherapy in several solid tumors. The impact of sarcopenia on the treatment of ovarian cancers has not been determined. The present study aimed to evaluate correlation between sarcopenia and toxicities of chemotherapy in ovarian cancers. METHODS: Medical charts of the ovarian cancer patients that received chemotherapy with paclitaxel and carboplatin at our hospital between 2010 and 2015 were retrospectively reviewed...
July 19, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28725590/mri-fusion-biopsy-the-contemporary-experience
#5
REVIEW
Marc A Bjurlin, Andrew B Rosenkrantz, Samir S Taneja
Advancements in magnetic resonance imaging (MRI) and MRI-ultrasound (US)-fusion targeted biopsy have resulted in a paradigm shift in the diagnosis of prostate cancer by overcoming the limitations of systematic biopsy. Prebiopsy MRI and MRI-US-fusion biopsy results in an increased detection of clinically significant disease, reduction in the detection of indolent disease, and allows for tumor localization during targeted biopsy. With these advantages, we have adopted a prebiopsy MRI and MRI-US-fusion biopsy diagnostic care pathway for all men at risk for prostate cancer and have performed more than 1900 biopsies to date...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28723520/bone-scan-index-as-an-imaging-biomarker-in-metastatic-castration-resistant-prostate-cancer-a-multicentre-study-based-on-patients-treated-with-abiraterone-acetate-zytiga-in-clinical-practice
#6
Mariana Reza, Mattias Ohlsson, Reza Kaboteh, Aseem Anand, Ingela Franck-Lissbrant, Jan-Erik Damber, Anders Widmark, Camilla Thellenberg-Karlsson, Lars Budäus, Thomas Steuber, Till Eichenauer, Per Wollmer, Lars Edenbrandt, Elin Trägårdh, Anders Bjartell
BACKGROUND: Abiraterone acetate (AA) prolongs survival in metastatic castration-resistant prostate cancer (mCRPC) patients. To measure treatment response accurately in bone, quantitative methods are needed. The Bone Scan Index (BSI), a prognostic imaging biomarker, reflects the tumour burden in bone as a percentage of the total skeletal mass calculated from bone scintigraphy. OBJECTIVE: To evaluate the value of BSI as a biomarker for outcome evaluation in mCRPC patients on treatment with AA according to clinical routine...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723416/unravelling-the-pharmacologic-opportunities-and-future-directions-for-targeted-therapies-in-gastro-intestinal-cancers-part-2-neuroendocrine-tumours-hepatocellular-carcinoma-and-gastro-intestinal-stromal-tumours
#7
REVIEW
Cindy Neuzillet, Louis de Mestier, Benoît Rousseau, Olivier Mir, Mohamed Hebbar, Hemant M Kocher, Philippe Ruszniewski, Christophe Tournigand
Until the 1990s, cytotoxic chemotherapy has been the cornerstone of medical therapy for gastrointestinal (GI) cancers. Better understanding of the cancer cell molecular biology has led to the therapeutic revolution of targeted therapies, i.e. monoclonal antibodies or small molecule inhibitors directed against proteins that are specifically overexpressed or mutated in cancer cells. These agents, being more specific to cancer cells, were expected to be less toxic than conventional cytotoxic agents. However, their effects have sometimes been disappointing, due to intrinsic or acquired resistance mechanisms, or to an activity restricted to some tumour settings, illustrating the importance of patient selection and early identification of predictive biomarkers of response to these therapies...
July 16, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28721500/early-prediction-of-tumor-response-to-bevacizumab-treatment-in-murine-colon-cancer-models-using-three-dimensional-dynamic-contrast-enhanced-ultrasound-imaging
#8
Jianhua Zhou, Huiping Zhang, Huaijun Wang, Amelie M Lutz, Ahmed El Kaffas, Lu Tian, Dimitre Hristov, Jürgen K Willmann
Due to spatial tumor heterogeneity and consecutive sampling errors, it is critically important to assess treatment response following antiangiogenic therapy in three dimensions as two-dimensional assessment has been shown to substantially over- and underestimate treatment response. In this study, we evaluated whether three-dimensional (3D) dynamic contrast-enhanced ultrasound (DCE-US) imaging allows assessing early changes in tumor perfusion following antiangiogenic treatment (bevacizumab administered at a dose of 10 mg/kg b...
July 18, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28715775/evolution-of-anti-her2-therapies-for-cancer-treatment
#9
REVIEW
Sagun Parakh, Hui K Gan, Adam C Parslow, Ingrid J G Burvenich, Antony W Burgess, Andrew M Scott
The development of HER2-directed monoclonal antibodies and tyrosine kinase inhibitors have provided benefits to cancer patients, as well as produced many insights into the biology of the ErbB receptor family. Current therapies based on ErbB family members have resulted in improved overall survival with associated improvements in quality of life for the cancer patients that respond to treatment. Compared to monotherapy using either two antibodies to block the HER2 receptor blockade or combinatorial approaches with HER2 antibodies and standard therapies has provided additional benefits...
July 6, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28707500/noninvasive-imaging-of-immune-checkpoint-ligand-pd-l1-in-tumors-and-metastases-for-guiding-immunotherapy
#10
Samit Chatterjee, Wojciech G Lesniak, Sridhar Nimmagadda
Immunotherapy holds great promise in cancer treatment. The challenges in advancing immunotherapies lie in patient stratification and monitoring therapy. Noninvasive detection of immune checkpoint ligand PD-L1 can serve as an important biomarker for guidance and monitoring of immunotherapy. Here in, we provide an overview of our efforts to develop clinically translatable PD-L1-specific imaging agents for quantitative and real-time assessment of PD-L1 expression in tumor microenvironment.
January 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28706887/associations-between-gene-expression-profiles-of-invasive-breast-cancer-and-breast-imaging-reporting-and-data-system-mri-lexicon
#11
Ga Ram Kim, You Jin Ku, Soon Gu Cho, Sei Joong Kim, Byung Soh Min
PURPOSE: To evaluate whether the Breast Imaging Reporting and Data System (BI-RADS) MRI lexicon could reflect the genomic information of breast cancers and to suggest intuitive imaging features as biomarkers. METHODS: Matched breast MRI data from The Cancer Imaging Archive and gene expression profile from The Cancer Genome Atlas of 70 invasive breast cancers were analyzed. Magnetic resonance images were reviewed according to the BI-RADS MRI lexicon of mass morphology...
July 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28706415/role-of-new-endoscopic-techniques-in-inflammatory-bowel-disease-management-has-the-change-come
#12
EDITORIAL
Loredana Goran, Lucian Negreanu, Ana Maria Negreanu
Despite significant therapeutic progress in recent years, inflammatory bowel disease (IBD), which includes Crohn's disease and ulcerative colitis, remains a challenge regarding its pathogenesis and long-term complications. New concepts have emerged in the management of this disease, such as the "treat-to-target" concept, in which mucosal healing plays a key role in the evolution of IBD, the risk of recurrence and the need for surgery. Endoscopy is essential for the assessment of mucosal inflammation and plays a pivotal role in the analysis of mucosal healing in patients with IBD...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28705470/hypoxia-and-hypoxia-response-associated-molecular-markers-in-esophageal-cancer-a-systematic-review
#13
REVIEW
Jurgen Peerlings, Lien Van De Voorde, Cristina Mitea, Ruben Larue, Ala Yaromina, Sebastian Sandeleanu, Linda Spiegelberg, Ludwig Dubois, Philippe Lambin, Felix M Mottaghy
PURPOSE: In this systematic review, the existing evidence of available hypoxia-associated molecular response biomarkers in esophageal cancer (EC) patients is summarized and set into the context of the role of hypoxia in the prediction of esophageal cancer, treatment response and treatment outcome. METHODS: A systematic literature search was performed in Web of Science, MEDLINE, and PubMed databases using the keywords: hypoxia, esophagus, cancer, treatment outcome and treatment response...
July 10, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28704384/quantitative-thyroglobulin-response-to-radioactive-iodine-treatment-in-predicting-radioactive-iodine-refractory-thyroid-cancer-with-pulmonary-metastasis
#14
Chen Wang, Xin Zhang, Hui Li, Xin Li, Yansong Lin
OBJECTIVE: Current diagnosis of radioactive iodine (RAI)-refractory (RAIR) differentiated thyroid cancer (DTC) is based on the imaging technique, which is of a high cost. Serum thyroglobulin (Tg) is a sensitive and easily obtained biomarker. Hence, we aimed to assess the predicting value of quantitative response of Tg in earlier identifying the RAIR-DTC with pulmonary metastasis. PATIENTS AND METHODS: Pulmonary metastatic DTC patients who underwent total or near-total thyroidectomy and at least two times of RAI therapy were included in this study...
2017: PloS One
https://www.readbyqxmd.com/read/28701587/prostate-cancer-diagnosis-using-epigenetic-biomarkers-3d-high-content-imaging-and-probabilistic-cell-by-cell-classifiers
#15
Darko Stefanovski, George Tang, Kolja Wawrowsky, Raymond C Boston, Nils Lambrecht, Jian Tajbakhsh
BACKGROUND: Prostate cancer (PCa) management can benefit from novel concepts/biomarkers for reducing the current 20-30% chance of false-negative diagnosis with standard histopathology of biopsied tissue. METHOD: We explored the potential of selected epigenetic markers in combination with validated histopathological markers, 3D high-content imaging, cell-by-cell analysis, and probabilistic classification in generating novel detailed maps of biomarker heterogeneity in patient tissues, and PCa diagnosis...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28701571/neoadjuvant-therapy-with-weekly-nanoparticle-albumin-bound-paclitaxel-for-luminal-early-breast-cancer-patients-results-from-the-nabrax-study-geicam-2011-02-a-multicenter-non-randomized-phase-ii-trial-with-a-companion-biomarker-analysis
#16
Miguel Martín, José I Chacón, Antonio Antón, Arrate Plazaola, Elena García-Martínez, Miguel A Seguí, Pedro Sánchez-Rovira, José Palacios, Lourdes Calvo, Carmen Esteban, Enrique Espinosa, Agusti Barnadas, Norberto Batista, Angel Guerrero, Montserrat Muñoz, Estefania Romio, César Rodríguez-Martín, Rosalía Caballero, María I Casas, Federico Rojo, Eva Carrasco, Silvia Antolín
BACKGROUND: Nanoparticle albumin-bound paclitaxel (nab-Paclitaxel) is an alternative to standard taxanes for breast cancer (BC) treatment. We evaluated nab-Paclitaxel efficacy as neoadjuvant treatment for early estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) disease. MATERIALS AND METHODS: Women with ER+, HER2-, stage II-III BC were treated preoperatively with four cycles of weekly nab-Paclitaxel (150 mg/m(2)), 3 weeks on and 1 week off...
July 12, 2017: Oncologist
https://www.readbyqxmd.com/read/28700982/phosphatidylcholine-specific-phospholipase-c-inhibition-reduces-her2-overexpression-cell-proliferation-and-in-vivo-tumor-growth-in-a-highly-tumorigenic-ovarian-cancer-model
#17
Luisa Paris, Franca Podo, Francesca Spadaro, Laura Abalsamo, Maria Elena Pisanu, Alessandro Ricci, Serena Cecchetti, Luisa Altabella, Maria Buoncervello, Ludmila Lozneanu, Marina Bagnoli, Carlo Ramoni, Silvana Canevari, Delia Mezzanzanica, Egidio Iorio, Rossella Canese
Antagonizing the oncogenic effects of human epidermal growth factor receptor 2 (HER2) with current anti-HER2 agents has not yet yielded major progress in the treatment of advanced HER2-positive epithelial ovarian cancer (EOC). Using preclinical models to explore alternative molecular mechanisms affecting HER2 overexpression and oncogenicity may lead to new strategies for EOC patient treatment. We previously reported that phosphatidylcholine-specific phospholipase C (PC-PLC) exerts a pivotal role in regulating HER2 overexpression in breast cancer cells...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28694503/cd44v8-10-as-a-potential-theranostic-biomarker-for-targeting-disseminated-cancer-cells-in-advanced-gastric-cancer
#18
Eun-Seok Choi, Hyunjin Kim, Hyung-Pyo Kim, Yongdoo Choi, Sung-Ho Goh
Gastric cancer is the third most common cause of cancer mortality, and the survival rate of stage IV advanced gastric cancer (AGC) patients with distant metastasis is very low. Thus, the detection and eradication of disseminated cancer cells by targeting cell surface molecules in AGC would improve patient survival. The hyaluronic acid receptor, CD44, has various isoforms generated by alternative splicing, and some isoforms are known to be correlated to gastric cancer. In this study, to find out the most appropriate CD44v for targeting AGC, we analysed the expression differences of CD44 isoforms at the mRNA level in stomach cancer cell lines as well as in 74 patients with AGC by using exon-specific qRT-PCR...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694112/atomic-force-microscopy-as-a-tool-for-assessing-the-cellular-elasticity-and-adhesiveness-to-identify-cancer-cells-and-tissues
#19
REVIEW
Joanna Zemła, Joanna Danilkiewicz, Barbara Orzechowska, Joanna Pabijan, Sara Seweryn, Małgorzata Lekka
From the first experiments of the atomic force microscopy (AFM) with biological samples, the range of its potential applications grows extensively. One of them is the use of AFM to characterize biophysical fingerprints of cancer progression in search of non-labelled biomarkers of the disease. The technique offers various functionalities, starting from surface imaging to detection of interaction forces, delivering quantitative parameters that can describe changes characteristic for various diseases, including cancer...
July 8, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28693449/multiparametric-magnetic-resonance-imaging-in-mucosal-primary-head-and-neck-cancer-a-prospective-imaging-biomarker-study
#20
Christopher N Rumley, Mark T Lee, Lois Holloway, Robba Rai, Myo Min, Dion Forstner, Allan Fowler, Gary Liney
BACKGROUND: Radical radiotherapy, with or without concomitant chemotherapy forms the mainstay of organ preservation approaches in mucosal primary head and neck cancer. Despite technical advances in cancer imaging and radiotherapy administration, a significant proportion of patients fail to achieve a complete response to treatment. For those patients who do achieve a complete response, acute and late toxicities remain a cause of morbidity. A critical need therefore exists for imaging biomarkers which are capable of informing patient selection for both treatment intensification and de-escalation strategies...
July 10, 2017: BMC Cancer
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