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https://www.readbyqxmd.com/read/28101916/perceptions-of-cancer-of-unknown-primary-site-a-national-survey-of-australian-medical-oncologists
#1
Christos S Karapetis, Lisa Guccione, Martin Hn Tattersall, Helen Gooden, Claire M Vajdic, Sylvie Lambert, Monica Robotin, Linda Mileshkin, Penelope Schofield
INTRODUCTION: Despite being the 6(th) cause of cancer death in Australia, cancer of unknown primary (CUP) site remains poorly understood. AIMS: To describe practices relating to the diagnosis, investigation, classification, communication and management of CUP amongst medical oncologists. METHODS: We invited all members of the Medical Oncology Group of Australia to participate in a national, anonymous online survey about CUP. The survey collected data regarding diagnosis acceptance, diagnostic tests, treatment protocols and communication practices around the diagnosis of CUP...
January 19, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/28101245/apobec3b-expression-in-human-leptomeninges-and-meningiomas
#2
Mahlon D Johnson, Jay E Reeder, Mary O'Connell
Nucleic acid-editing enzymes of the apolipoprotein B mRNA-editing enzyme (APOBEC) family have been associated with somatic mutation in cancer. However, the role of APOBEC catalytic subunit 3B (APOBEC3B) editing in the pathogenesis of base substitutions in meningiomas is unknown. In the present study, the expression of APOBEC3B was examined by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analyses in five fetal and one adult human leptomeninges and 38 meningiomas. Genomic DNA was sequenced using the Illumina Tru-Seq Cancer Panel...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101226/evaluation-of-plasma-microrna-levels-to-predict-insensitivity-of-patients-with-advanced-lung-adenocarcinomas-to-pemetrexed-and-platinum
#3
Jinghua Zhu, Yuhua Qi, Jianzhong Wu, Meiqi Shi, Jifeng Feng, Longbang Chen
Pemetrexed combined with platinum is a first-line therapy used to treat patients with advanced non-small cell lung cancer (NSCLC) that exhibit negative or unknown epidermal growth factor receptor (EGFR) mutational status or anaplastic lymphoma kinase (ALK) rearrangements. Lung adenocarcinoma (LAC) is the primary type of NSCLC. In order to prevent overtreatment, it is necessary to identify patients with LAC who may not benefit from certain chemotherapies. Patients recruited in the present study (n=129) were diagnosed with advanced LAC and received first-line pemetrexed and platinum-based chemotherapy...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28099523/the-role-of-liquid-based-cytology-and-ancillary-techniques-in-the-peritoneal-washing-analysis-our-institutional-experience
#4
Esther Rossi, Tommaso Bizzarro, Maurizio Martini, Adhemar Longatto-Filho, Fernando Schmitt, Anna Fagotti, Giovanni Scambia, Gian Franco Zannoni
BACKGROUND: The cytological analysis of peritoneal effusions serves as a diagnostic and prognostic aid for either primary or metastatic diseases. Among the different cytological preparations, liquid based cytology (LBC) represents a feasible and reliable method ensuring also the application of ancillary techniques (i.e immunocytochemistry-ICC and molecular testing). METHODS: We recorded 10348 LBC peritoneal effusions between January 2000 and December 2014. They were classified as non-diagnostic (ND), negative for malignancy-NM, atypical-suspicious for malignancy-SM and positive for malignancy-PM...
2017: PloS One
https://www.readbyqxmd.com/read/28097046/molecular-classification-of-tissue-from-a-transformed-non-hogkin-s-lymphoma-case-with-unexpected-long-time-remission
#5
Julie Støve Bødker, Marianne Tang Severinsen, Tarec Christoffer El-Galaly, Rasmus Froberg Brøndum, Maria Bach Laursen, Steffen Falgreen, Mette Nyegaard, Alexander Schmitz, Lasse Hjort Jakobsen, Anna Amanda Schönherz, Hanne Due, Linn Reinholdt, Martin Bøgsted, Karen Dybkær, Hans Erik Johnsen
BACKGROUND: The concept of precision medicine in cancer includes individual molecular studies to predict clinical outcomes. In the present N = 1 case we retrospectively have analysed lymphoma tissue by exome sequencing and global gene expression in a patient with unexpected long-term remission following relaps. The goals were to phenotype the diagnostic and relapsed lymphoma tissue and evaluate its pattern. Furthermore, to identify mutations available for targeted therapy and expression of genes to predict specific drug effects by resistance gene signatures (REGS) for R-CHOP as described at http://www...
2017: Experimental Hematology & Oncology
https://www.readbyqxmd.com/read/28094199/risk-of-prostate-cancer-diagnosis-and-mortality-in-men-with-a-benign-initial-transrectal-ultrasound-guided-biopsy-set-a-population-based-study
#6
Nina Klemann, M Andreas Røder, J Thomas Helgstrand, Klaus Brasso, Birgitte G Toft, Ben Vainer, Peter Iversen
BACKGROUND: The risk of missing prostate cancer in the transrectal ultrasound-guided systematic biopsies of the prostate in men with suspected prostate cancer is a key problem in urological oncology. Repeat biopsy or MRI-guided biopsies have been suggested to increase sensitivity for diagnosis of prostate cancer, but the risk of disease-specific mortality in men who present with raised prostate-specific antigen (PSA) concentration and a benign initial biopsy result remains unknown. We investigated the risk of overall and prostate cancer-specific mortality in men with a benign initial biopsy set...
January 13, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28093228/ndrg2-suppressed-expression-associates-with-poor-prognosis-in-pancreatic-cancer-is-hypermethylated-in-the-second-promoter-in-human-gastrointestinal-cancers
#7
Akihiro Yamamura, Koh Miura, Hideaki Karasawa, Fuyuhiko Motoi, Yasuhiko Mizuguchi, Yuriko Saiki, Shinichi Fukushige, Makoto Sunamura, Chikashi Shibata, Michiaki Unno, Akira Horii
Although N-myc downstream regulated gene 2 (NDRG2) is frequently downregulated in various cancers and is considered to be a candidate tumor suppressor gene, molecular mechanisms of the expressional suppression that lead to cancers are largely unknown. Recent studies indicated that epigenetic suppression of NDRG2 involved carcinogenesis and progression in several tumor types, and we demonstrated positive association with NDRG2 suppression and poor prognosis in pancreatic cancer. In this study, we analyzed mRNA and protein expressions of NDRG2 in 26 cancer cell lines (20 colorectal and 6 gastric cancers) and found that many cell lines showed variously reduced NDRG2 expressions...
January 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28093071/spag6-and-l1td1-are-transcriptionally-regulated-by-dna-methylation-in-non-small-cell-lung-cancers
#8
Corinna Altenberger, Gerwin Heller, Barbara Ziegler, Erwin Tomasich, Maximilian Marhold, Thais Topakian, Leonhard Müllauer, Petra Heffeter, György Lang, Adelheid End-Pfützenreuter, Balazs Döme, Britt-Madeleine Arns, Walter Klepetko, Christoph C Zielinski, Sabine Zöchbauer-Müller
BACKGROUND: DNA methylation regulates together with other epigenetic mechanisms the transcriptional activity of genes and is involved in the pathogenesis of malignant diseases including lung cancer. In non-small cell lung cancer (NSCLC) various tumor suppressor genes are already known to be tumor-specifically methylated. However, from the vast majority of a large number of genes which were identified to be tumor-specifically methylated, tumor-specific methylation was unknown so far. Thus, the major aim of this study was to investigate in detail the mechanism(s) responsible for transcriptional regulation of the genes SPAG6 and L1TD1 in NSCLCs...
January 5, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28075462/dnalk2-inhibits-the-proliferation-and-invasiveness-of-breast-cancer-mda-mb-231-cells-through-the-smad-dependent-pathway
#9
Ke Wang, Xiaoxiao Sun, Hong Lei Feng, Chang Fei, Yan Zhang
Breast cancer is one of the most common malignant neoplasms diagnosed in females worldwide. Bone morphogenetic proteins (BMPs), which belong to the TGF-β superfamily, regulate a wide range of cellular responses including cell proliferation, differentiation, adhesion, migration and apoptosis in breast cancer. BMPs can bind to type I and II serine/threonine kinase receptors to regulate cell proliferation, invasion, migration, and apoptosis. Type I receptors are expressed in various breast cancer cell lines and primary tumor samples...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28074862/hypoxia-activates-wnt-%C3%AE-catenin-signaling-by-regulating-the-expression-of-bcl9-in-human-hepatocellular-carcinoma
#10
Wei Xu, Wang Zhou, Mo Cheng, Jing Wang, Zhian Liu, Shaohui He, Xiangji Luo, Wending Huang, Tianrui Chen, Wangjun Yan, Jianru Xiao
The Wnt/β-catenin signaling is abnormally activated in the progression of hepatocellular carcinoma (HCC). BCL9 is an essential co-activator in the Wnt/β-catenin signaling. Importantly, BCL9 is absent from tumors originating from normal cellular counterparts and overexpressed in many cancers including HCC. But the mechanism for BCL9 overexpression remains unknown. Ample evidence indicates that hypoxia inducible factors (HIFs) play a role in the development of HCC. It was found in our study that BCL9 was overexpressed in both primary HCC and bone metastasis specimens; loss of BCL9 inhibited the proliferation, migration and angiogenesis of HCC; and that that hypoxia mechanically induced the expression of BCL9...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069548/long-noncoding-rna-hulc-promotes-cell-proliferation-by-regulating-pi3k-akt-signaling-pathway-in-chronic-myeloid-leukemia
#11
Yinghao Lu, Yan Li, Xiao Chai, Qian Kang, Peng Zhao, Jie Xiong, Jishi Wang
Aberrant expression of long noncoding RNA (lncRNA) HULC is associated with various human cancers. However, the role of HULC in chronic myeloid leukemia (CML) is unknown. In this study, we found that HULC was remarkably overexpressed in both leukemia cell lines and primary hematopoietic cells derived from CML patients. The increase in HULC expression was positively correlated with clinical stages in CML. Moreover, the knockdown of HULC significantly inhibited CML cell proliferation and induced apoptosis by repressing c-Myc and Bcl-2...
January 6, 2017: Gene
https://www.readbyqxmd.com/read/28069039/supraclavicular-lymph-node-incisional-biopsies-have-no-influence-on-the-prognosis-of-advanced-non-small-cell-lung-cancer-patients-a-retrospective-study
#12
Song Dong, Ning Zhao, Wei Deng, Hui-Wen Sun, Fei-Yu Niu, Jin-Ji Yang, Wen-Zhao Zhong, Feng Li, Hong-Hong Yan, Chong-Rui Xu, Qiu-Yi Zhang, Xue-Ning Yang, Ri-Qiang Liao, Qiang Nie, Yi-Long Wu
BACKGROUND: Supraclavicular lymph node (SCLN) biopsies play an important role in diagnosing and staging lung cancer. However, not all patients with SCLN metastasis can have a complete resection. It is still unknown whether SCLN incisional biopsies affect the prognosis of non-small cell lung cancer (NSCLC) patients. METHODS: Patients who were histologically confirmed to have NSCLC with SCLN metastasis were enrolled in the study from January 2007 to December 2012 at Guangdong Lung Cancer Institute...
January 9, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28069017/dose-escalation-of-stereotactic-body-radiotherapy-sbrt-for-locally-advanced-unresectable-pancreatic-cancer-patients-with-cyberknife-protocol-of-a-phase-i-study
#13
Shui-Wang Qing, Xiao-Ping Ju, Yang-Sen Cao, Huo-Jun Zhang
BACKGROUND: Dose escalation of SBRT for locally advanced pancreatic cancer patients had been reported in several studies in one or three fractions, and phase I protocol was developed to investigate the maximum tolerated dose with CyberKnife for locally advanced unresectable pancreatic cancer patients in five fractions. METHODS: The study is designed as a mono-center phase I study. The primary endpoint is to determine the maximum tolerated dose by frequency of III/IV GI (gastrointestinal) toxicity...
January 9, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28068668/the-hippo-kinases-lats1-and-2-control-human-breast-cell-fate-via-crosstalk-with-er%C3%AE
#14
Adrian Britschgi, Stephan Duss, Sungeun Kim, Joana Pinto Couto, Heike Brinkhaus, Shany Koren, Duvini De Silva, Kirsten D Mertz, Daniela Kaup, Zsuzsanna Varga, Hans Voshol, Alexandra Vissieres, Cedric Leroy, Tim Roloff, Michael B Stadler, Christina H Scheel, Loren J Miraglia, Anthony P Orth, Ghislain M C Bonamy, Venkateshwar A Reddy, Mohamed Bentires-Alj
Cell fate perturbations underlie many human diseases, including breast cancer. Unfortunately, the mechanisms by which breast cell fate are regulated are largely unknown. The mammary gland epithelium consists of differentiated luminal epithelial and basal myoepithelial cells, as well as undifferentiated stem cells and more restricted progenitors. Breast cancer originates from this epithelium, but the molecular mechanisms that underlie breast epithelial hierarchy remain ill-defined. Here, we use a high-content confocal image-based short hairpin RNA screen to identify tumour suppressors that regulate breast cell fate in primary human breast epithelial cells...
January 9, 2017: Nature
https://www.readbyqxmd.com/read/28066627/survival-analyses-in-lung-cancer
#15
EDITORIAL
Kari Chansky, Dragan Subotic, Nathan R Foster, Torsten Blum
BACKGROUND: Although survival analyses represent one of the cornerstones in oncology in general, some aspects of the reported survival data in lung cancer patients are still not fully elucidated. METHODS: After having defined several open questions, an evidence based approach was applied in order to answer these questions. Areas of interest were: (I) possible uncertainties in reported survival data; (II) survival surrogates; (III) recommended methods for evaluating progression free survival (PFS) as a surrogate endpoint in future datasets; (IV) postoperative lung cancer recurrence and survival...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28058543/genomic-profiling-of-canine-mast-cell-tumors-identifies-dna-copy-number-aberrations-associated-with-kit-mutations-and-high-histological-grade
#16
Hiroyuki Mochizuki, Rachael Thomas, Scott Moroff, Matthew Breen
Mast cell tumor (MCT) is the most common skin malignancy of domestic dogs and presents with a widely variable clinical behavior. Although activating KIT mutations are present in approximately 20% of canine MCTs, molecular etiology is largely unknown for the majority of this cancer. Characterization of genomic alterations in canine MCTs may identify genomic regions and/or genes responsible for their development and progression, facilitating the discovery of new therapeutic targets and improved clinical management of this heterogeneous cancer...
January 5, 2017: Chromosome Research
https://www.readbyqxmd.com/read/28054593/high-shear-stresses-under-exercise-condition-destroy-circulating-tumor-cells-in-a-microfluidic-system
#17
Sagar Regmi, Afu Fu, Kathy Qian Luo
Circulating tumor cells (CTCs) are the primary targets of cancer treatment as they cause distal metastasis. However, how CTCs response to exercise-induced high shear stress is largely unknown. To study the effects of hemodynamic microenvironment on CTCs, we designed a microfluidic circulatory system that produces exercise relevant shear stresses. We explore the effects of shear stresses on breast cancer cells with different metastatic abilities, cancer cells of ovarian, lung and leukemic origin. Three major findings were obtained...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28050146/personalized-oncogenomics-in-the-management-of-gastrointestinal-carcinomas-early-experiences-from-a-pilot-study
#18
B S Sheffield, B Tessier-Cloutier, H Li-Chang, Y Shen, E Pleasance, K Kasaian, Y Li, S J M Jones, H J Lim, D J Renouf, D G Huntsman, S Yip, J Laskin, M Marra, D F Schaeffer
BACKGROUND: Gastrointestinal carcinomas are genomically complex cancers that are lethal in the metastatic setting. Whole-genome and transcriptome sequencing allow for the simultaneous characterization of multiple oncogenic pathways. METHODS: We report 3 cases of metastatic gastrointestinal carcinoma in patients enrolled in the Personalized Onco-Genomics program at the BC Cancer Agency. Real-time genomic profiling was combined with clinical expertise to diagnose a carcinoma of unknown primary, to explore treatment response to bevacizumab in a colorectal cancer, and to characterize an appendiceal adenocarcinoma...
December 2016: Current Oncology
https://www.readbyqxmd.com/read/28045860/late-onset-choroidal-metastasis-from-breast-cancer
#19
Ashleigh L Levison, Feyza Erenler, Yue Zhao, Daniel F Martin, Careen Lowder, G Thomas Budd, Arun D Singh
PURPOSE: Report occurrence of late-onset choroidal metastasis from breast cancer. METHODS: Retrospective chart review. RESULTS: The authors report 3 patients with choroidal metastasis from breast cancer that presented more than 20 years after diagnosis of the primary tumor. The choroidal metastases were the presenting feature of metastatic disease in all three patients, but after imaging, all patients had metastasis elsewhere as well. Two of the patients' tumors were known, ER+, and the hormone receptor status of the third patient was unknown...
December 30, 2016: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28040691/ultraviolet-radiation-and-kaposi-sarcoma-incidence-in-a-nationwide-us-cohort-of-hiv-infected-men
#20
Elizabeth K Cahoon, Eric A Engels, D Michal Freedman, Mary Norval, Ruth M Pfeiffer
BACKGROUND: Although ultraviolet radiation (UVR) is established as both an inducer of herpes simplex virus reactivation and as the primary risk factor for many common skin cancers, its relationship with human herpes virus 8 (HHV8) infection or risk of Kaposi sarcoma (KS) is unknown. METHODS: Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated for the association between ambient UVR, history of nonmelanoma skin cancer (NMSC; as a biomarker of personal cumulative UVR dose), and incidence of first primary KS in a nationwide US cohort of white and African American male veterans infected with HIV between 1986 and 1996 (prior to the widespread availability of treatment) using Cox regression...
May 2017: Journal of the National Cancer Institute
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