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https://www.readbyqxmd.com/read/28236630/growth-attainment-in-german-children-born-preterm-and-cardiovascular-risk-factors-in-adolescence-analysis-of-the-population-representative-kiggs-data
#1
Renate L Bergmann, Karl E Bergmann, Rolf Richter, Martin Schlaud, Wolfgang Henrich, Alexander Weichert
AIM: To compare the growth attainment of preterm children and their cardiovascular risk factors at adolescence with the values measured in term children in Germany. METHODS: About 17,641 children aged 0 to <18 years were studied between 2003 and 2006 in the population representative German KiGGS survey ("German Health Interview and Examination Survey for Children and Adolescents") using questionnaires, physical examinations, standardized anthropometric and blood pressure measurements, and blood sample analyses...
February 25, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28221700/multikinase-inhibitors-sorafenib-and-sunitinib-as-radiosensitizers-in-head-and-neck-cancer-cell-lines
#2
Annette Affolter, Gerson Samosny, Anne-Sophie Heimes, Johanna Schneider, Wilko Weichert, Albrecht Stenzinger, Katharina Sommer, Alexandra Jensen, Arnulf Mayer, Walburgis Brenner, Wolf J Mann, Jürgen Brieger
BACKGROUND: Radioresistance is a common feature of head and neck squamous cell carcinoma (HNSCC). We previously showed that the irradiation- activated vascular endothelial growth factor (VEGF)-extracellular signal-regulated kinase (ERK)-axis is fundamental for the survival of resistant tumors. In this study, we examined if treatment with potent multikinase (MK) inhibitors, sorafenib and sunitinib, could radiosensitize tumor cells. METHODS: Cultured HNSCC cell lines were treated with inhibitors and subsequently irradiated...
February 21, 2017: Head & Neck
https://www.readbyqxmd.com/read/28216441/the-dynamics-of-signal-complex-formation-mediating-germling-fusion-in-neurospora-crassa
#3
Antonio Serrano, Hamzeh H Hammadeh, Stephanie Herzog, Julia Illgen, Marcel R Schumann, Martin Weichert, André Fleiβner
Colony initiation of filamentous fungi commonly involves fusion of germinating vegetative spores. Studies in Neurospora crassa revealed an unusual cell-cell communication mechanism mediating this process, in which the fusion partners coordinately alternate between two physiological stages, probably related to signal sending and receiving. This "cell dialog" involves the alternating, oscillatory recruitment of the SO protein and the MAK-2 MAP kinase module to the apical plasma membrane of growing fusion tips...
February 16, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28181482/small-genomic-insertions-form-enhancers-that-misregulate-oncogenes
#4
Brian J Abraham, Denes Hnisz, Abraham S Weintraub, Nicholas Kwiatkowski, Charles H Li, Zhaodong Li, Nina Weichert-Leahey, Sunniyat Rahman, Yu Liu, Julia Etchin, Benshang Li, Shuhong Shen, Tong Ihn Lee, Jinghui Zhang, A Thomas Look, Marc R Mansour, Richard A Young
The non-coding regions of tumour cell genomes harbour a considerable fraction of total DNA sequence variation, but the functional contribution of these variants to tumorigenesis is ill-defined. Among these non-coding variants, somatic insertions are among the least well characterized due to challenges with interpreting short-read DNA sequences. Here, using a combination of Chip-seq to enrich enhancer DNA and a computational approach with multiple DNA alignment procedures, we identify enhancer-associated small insertion variants...
February 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28181130/micrornas-mir-7-and-mir-340-predict-response-to-neoadjuvant-chemotherapy-in-breast-cancer
#5
Mithu Raychaudhuri, Holger Bronger, Theresa Buchner, Marion Kiechle, Wilko Weichert, Stefanie Avril
PURPOSE: miRNAs have been linked to chemosensitivity of breast cancer cells in vitro. In patients, however, there is no clinically validated method for predicting chemotherapy response. The aim of this study was to assess whether (I) a specific pattern of miRNA expression in pretherapeutic biopsies can predict response to neoadjuvant chemotherapy, and (II) differential miRNA expression in residual tumor after completion of chemotherapy allows further prognostic stratification of non-responding patients...
February 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28178700/genetic-profiling-of-cancers-of-the-digestive-system-biological-insights-and-clinical-implications
#6
Albrecht Stenzinger, Wilko Weichert
Massive parallel sequencing technologies (next-generation sequencing) have enabled us to draw a comprehensive landscape of the genomic aberrations underlying common cancers of the digestive system, and they have thus revolutionized our understanding of the genomic makeup and biology of these tumors. Apart from the commonly mutated founder genes, e.g., KRAS and TP53, we now have detailed information on additional and less frequent genomic events for every major digestive system cancer. However, many challenging issues remain when it comes to translating these findings into clinical applications...
February 9, 2017: Pathobiology: Journal of Immunopathology, Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28176137/smarca4-deficient-sinonasal-carcinoma
#7
Abbas Agaimy, Wilko Weichert
The term "sinonasal undifferentiated carcinoma (SNUC)" has been coined in 1986 for a highly aggressive sinonasal tract epithelial neoplasm showing distinctive morphology, but lacking any specific line of differentiation. Recent developments resulted in a dynamic splitting of new entities traditionally included in the spectrum of SNUC. Sinonasal NUT-midline carcinoma, adamantinoma-like Ewing family tumors and most recently, SMARCB1(INI1)-deficient sinonasal carcinoma are the main entities defined by specific genetic aberrations...
February 7, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28175546/364%C3%A2-creation-of-a-dual-labeled-cancer-targeting-alkylphosphocholine-analog-for-dual-modality-quantitative-positron-emission-tomography-and-intraoperative-tumor-visualization
#8
John S Kuo, Ray R Zhang, Anatoly N Pinchuk, Justin Jeffrey, Paul A Clark, Jamey P Weichert
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28134825/application-of-the-pamono-sensor-for-quanti%C3%AF-cation-of-microvesicles-and-determination-of-nano-particle-size-distribution
#9
Victoria Shpacovitch, Irina Sidorenko, Jan Eric Lenssen, Vladimir Temchura, Frank Weichert, Heinrich Müller, Klaus Überla, Alexander Zybin, Alexander Schramm, Roland Hergenröder
The PAMONO-sensor (plasmon assisted microscopy of nano-objects) demonstrated an ability to detect and quantify individual viruses and virus-like particles. However, another group of biological vesicles-microvesicles (100-1000 nm)-also attracts growing interest as biomarkers of different pathologies and needs development of novel techniques for characterization. This work shows the applicability of a PAMONO-sensor for selective detection of microvesicles in aquatic samples. The sensor permits comparison of relative concentrations of microvesicles between samples...
January 27, 2017: Sensors
https://www.readbyqxmd.com/read/28122134/tumor-budding-activity-and-cell-nest-size-determine-patient-outcome-in-oral-squamous-cell-carcinoma-proposal-for-an-adjusted-grading-system
#10
Melanie Boxberg, Moritz Jesinghaus, Christiane Dorfner, Carolin Mogler, Enken Drecoll, Arne Warth, Katja Steiger, Christine Bollwein, Petra Meyer, Klaus Dietrich Wolff, Andreas Kolk, Wilko Weichert
Oral squamous cell carcinoma (OSCC) is a common malignancy with a variable clinical course. One of the established survival predictors in carcinomas in general is tumor grade, in OSCC however, grading according to the WHO has no independent prognostic impact. Recently, a novel grading scheme associated with high impact on patient outcome has been proposed for squamous cell carcinoma of the lung. To probe whether this scheme could be applied to the upper aerodigestive tract, we retrospectively evaluated 157 chemo- and radiotherapy naive OSCCs with complete clinical follow-up data and standardized treatment for tumor budding activity, cell nest size, extent of keratinization, stromal content, nuclear size and mitotic count...
January 25, 2017: Histopathology
https://www.readbyqxmd.com/read/28120820/dna-copy-number-changes-define-spatial-patterns-of-heterogeneity-in-colorectal-cancer
#11
Soulafa Mamlouk, Liam Harold Childs, Daniela Aust, Daniel Heim, Friederike Melching, Cristiano Oliveira, Thomas Wolf, Pawel Durek, Dirk Schumacher, Hendrik Bläker, Moritz von Winterfeld, Bastian Gastl, Kerstin Möhr, Andrea Menne, Silke Zeugner, Torben Redmer, Dido Lenze, Sascha Tierling, Markus Möbs, Wilko Weichert, Gunnar Folprecht, Eric Blanc, Dieter Beule, Reinhold Schäfer, Markus Morkel, Frederick Klauschen, Ulf Leser, Christine Sers
Genetic heterogeneity between and within tumours is a major factor determining cancer progression and therapy response. Here we examined DNA sequence and DNA copy-number heterogeneity in colorectal cancer (CRC) by targeted high-depth sequencing of 100 most frequently altered genes. In 97 samples, with primary tumours and matched metastases from 27 patients, we observe inter-tumour concordance for coding mutations; in contrast, gene copy numbers are highly discordant between primary tumours and metastases as validated by fluorescent in situ hybridization...
January 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28094261/beyond-the-margins-real-time-detection-of-cancer-using-targeted-fluorophores
#12
REVIEW
Ray R Zhang, Alexandra B Schroeder, Joseph J Grudzinski, Eben L Rosenthal, Jason M Warram, Anatoly N Pinchuk, Kevin W Eliceiri, John S Kuo, Jamey P Weichert
Over the past two decades, synergistic innovations in imaging technology have resulted in a revolution in which a range of biomedical applications are now benefiting from fluorescence imaging. Specifically, advances in fluorophore chemistry and imaging hardware, and the identification of targetable biomarkers have now positioned intraoperative fluorescence as a highly specific real-time detection modality for surgeons in oncology. In particular, the deeper tissue penetration and limited autofluorescence of near-infrared (NIR) fluorescence imaging improves the translational potential of this modality over visible-light fluorescence imaging...
January 17, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28059098/somatostatin-receptor-expression-related-to-tp53-and-rb1-alterations-in-pancreatic-and-extrapancreatic-neuroendocrine-neoplasms-with-a-ki67-index-above-20
#13
Björn Konukiewitz, Anna Melissa Schlitter, Moritz Jesinghaus, Dominik Pfister, Katja Steiger, Angela Segler, Abbas Agaimy, Bence Sipos, Giuseppe Zamboni, Wilko Weichert, Irene Esposito, Nicole Pfarr, Günter Klöppel
Somatostatin receptor 2A expression is a feature of well-differentiated neuroendocrine neoplasms and is important for their diagnosis and therapy. Little is known about somatostatin receptor 2A expression in poorly differentiated neuroendocrine neoplasms in relation to TP53 and RB1 status and how these features may contribute to the separation of well from poorly differentiated neuroendocrine neoplasms with a proliferation index above 20%. This study investigates the expression of somatostatin receptors, p53 and Rb1, and TP53 alterations in pancreatic and extrapancreatic well and poorly differentiated neuroendocrine neoplasms (Ki67-index >20%)...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28059096/colorectal-mixed-adenoneuroendocrine-carcinomas-and-neuroendocrine-carcinomas-are-genetically-closely-related-to-colorectal-adenocarcinomas
#14
Moritz Jesinghaus, Björn Konukiewitz, Gisela Keller, Matthias Kloor, Katja Steiger, Magdalena Reiche, Roland Penzel, Volker Endris, Ruza Arsenic, Gratiana Hermann, Albrecht Stenzinger, Wilko Weichert, Nicole Pfarr, Günter Klöppel
Colorectal mixed adenoneuroendocrine carcinomas are rare and clinically aggressive neoplasms with considerable morphological heterogeneity. Data on their genomic characteristics and molecular associations to either conventional colorectal adenocarcinomas or poorly differentiated neuroendocrine neoplasms is still scarce, hampering optimized patient treatment and care. Tissue from 19 colorectal mixed adenoneuroendocrine carcinomas and eight colorectal poorly differentiated neuroendocrine neoplasms (neuroendocrine carcinomas) was microdissected and subjected to next-generation sequencing using a colorectal adenocarcinoma-specific panel comprising 196 amplicons covering 32 genes linked to colorectal adenocarcinoma, and poorly differentiated neuroendocrine neoplasm tumorigenesis...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28047779/we-h-207a-08-characterization-of-a-broad-spectrum-cancer-targeted-mri-contrast-agent
#15
C Brunnquell, R Zhang, A Pinchuk, J Weichert
PURPOSE: To characterize the relaxation properties and tumor targeting capabilities of a novel alkylphosphocholine (APC) analog MR contrast agent, Gd-DO3A-404. METHODS: Relaxivities were measured via T1 and T2 mapping of Gd-DO3A-404 with inversion recovery and spin echo pulse sequences, respectively. Uptake was characterized in flank xenograft models of non-small cell lung cancer (A549) and glioma (U87) and compared with uptake of Dotarem. Mice (N=3 per model per agent) were delivered 2...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047116/su-g-tep3-08-pre-clinical-radionuclide-therapy-dosimetry-in-several-pediatric-cancer-xenografts
#16
I Marsh, M Otto, J Weichert, D Baiu, B Bednarz
PURPOSE: The focus of this work is to perform Monte Carlo-based dosimetry for several pediatric cancer xenografts in mice treated with a novel radiopharmaceutical (131) I-CLR1404. METHODS: Four mice for each tumor cell line were injected with 8-13 µCi/g of the (124) 124I-CLR1404. PET/CT images of each individual mouse were acquired at 5-6 time points over the span of 96-170 hours post-injection. Following acquisition, the images were co-registered, resampled, rescaled, corrected for partial volume effects (PVE), and masked...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28035577/c-met-in-chromophobe-renal-cell-carcinoma
#17
Franziska Erlmeier, Philipp Ivanyi, Arndt Hartmann, Michael Autenrieth, Max Wiedemann, Wilko Weichert, Sandra Steffens
c-Met plays a role as a prognostic marker in clear cell renal cell carcinoma. In addition, recently the tyrosine kinase inhibitor cabozantinib targeting c-Met was approved for the treatment of advanced renal cell carcinoma (RCC). In contrast to clear cell RCC, little is known about c-Met expression patterns in rarer RCC subtypes. The aim of this study was to evaluate the prevalence, distribution and prognostic impact of c-Met expression on chromophobe (ch)RCC. Patients who underwent renal surgery due to chRCC were retrospectively evaluated...
February 2017: Medical Oncology
https://www.readbyqxmd.com/read/28035323/the-role-of-pd-l1-expression-and%C3%A2-intratumoral-lymphocytes-in%C3%A2-response%C3%A2-to-perioperative-chemotherapy%C3%A2-for-urothelial-carcinoma
#18
F Erlmeier, A K Seitz, G Hatzichristodoulou, L Stecher, M Retz, J E Gschwend, W Weichert, H R Kübler, T Horn
Introduction: Immunological pathways are relevant for the effectiveness of conventional cytotoxic chemotherapy. Recently, checkpoint inhibition of the PD-1/PD-L1 axis has been shown to be therapeutically relevant in urothelial carcinoma. Objective: To monitor PD-L1 expression on tumor cells and intratumoral infiltration with CD8 positive lymphocytes during perioperative chemotherapy for urothelial cancer and to evaluate their use as potential predictive markers for chemotherapy. Patients and Methods: Sixty-four patients with muscle-invasive urothelial cancer were included in the analysis...
October 27, 2016: Bladder Cancer
https://www.readbyqxmd.com/read/28024689/alk-testing-in-non-small-cell-lung-cancer-nsclc-immunohistochemistry-ihc-and-or-fluorescence-in-situ-hybridisation-fish-statement-of-the-germany-society-for-pathology-dgp-and-the-working-group-thoracic-oncology-aio-of-the-german-cancer-society-e-v-stellungnahme
#19
M von Laffert, P Schirmacher, A Warth, W Weichert, R Büttner, R M Huber, J Wolf, F Griesinger, M Dietel, Ch Grohé
The EML4-ALK pathway plays an important role in a significant subset of non-small cell lung cancer patients. Treatment options such as ALK tyrosine kinase inhibitors lead to improved progression free survival and overall survival. These therapeutic options are chosen on the basis of the identification of the underlying genetic signature of the EML-ALK translocation. Efficient and easily accessible testing tools are required to identify eligible patients in a timely fashion. While FISH techniques are commonly used to detect this translocation, the broad implementation of this type of ALK testing into routine diagnostics is not optimal due to technical, structural and financial reasons...
January 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28006830/-c-met-oncogene-in-renal-cell-carcinomas
#20
F Erlmeier, W Weichert, M Autenrieth, P Ivanyi, A Hartmann, S Steffens
c-Met plays a significant role in multiple cellular processes. Being encoded by a proto-oncogene, tyrosine kinase supports aggressive tumour behaviour such as tumour invasiveness and formation of metastases. For some subtypes of renal cell carcinoma studies have shown a association between c-Met expression and clinical outcome or prognosis. Therefore, c-Met represents a prognostic marker in renal cell carcinoma.Furthermore, c-MET will play a decisive role as a possible target for targeted therapies in the era of personalised medicine...
December 2016: Aktuelle Urologie
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