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https://www.readbyqxmd.com/read/28527407/mechanisms-of-resistance-to-systemic-therapy-in-metastatic-castration-resistant-prostate-cancer
#1
REVIEW
Giuseppe Galletti, Benjamin I Leach, Linda Lam, Scott T Tagawa
Patients with metastatic castration-resistant prostate cancer (mCPRC) now have an unprecedented number of approved treatment options, including chemotherapies (docetaxel, cabazitaxel), androgen receptor (AR)-targeted therapies (enzalutamide, abiraterone), a radioisotope (radium-223) and a cancer vaccine (sipuleucel-T). However, the optimal treatment sequencing pathway is unknown, and this problem is exacerbated by the issues of primary and acquired resistance. This review focuses on mechanisms of resistance to AR-targeted therapies and taxane-based chemotherapy...
May 8, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28525846/exploring-the-clonal-evolution-of-cd133-aldehyde-dehydrogenase-1-aldh1-positive-cancer-stem-like-cells-from-primary-to-recurrent-high-grade-serous-ovarian-cancer-hgsoc-a-study-of-the-ovarian-cancer-therapy-innovative-models-prolong-survival-octips-consortium
#2
Ilary Ruscito, Dan Cacsire Castillo-Tong, Ignace Vergote, Iulia Ignat, Mandy Stanske, Adriaan Vanderstichele, Ram N Ganapathi, Jacek Glajzer, Hagen Kulbe, Fabian Trillsch, Alexander Mustea, Caroline Kreuzinger, Pierluigi Benedetti Panici, Charlie Gourley, Hani Gabra, Mirjana Kessler, Jalid Sehouli, Silvia Darb-Esfahani, Elena Ioana Braicu
BACKGROUND: High-grade serous ovarian cancer (HGSOC) causes 80% of all ovarian cancer (OC) deaths. In this setting, the role of cancer stem-like cells (CSCs) is still unclear. In particular, the evolution of CSC biomarkers from primary (pOC) to recurrent (rOC) HGSOCs is unknown. Aim of this study was to investigate changes in CD133 and aldehyde dehydrogenase-1 (ALDH1) CSC biomarker expression in pOC and rOC HGSOCs. METHODS: Two-hundred and twenty-four pOC and rOC intrapatient paired tissue samples derived from 112 HGSOC patients were evaluated for CD133 and ALDH1 expression using immunohistochemistry (IHC); pOCs and rOCs were compared for CD133 and/or ALDH1 levels...
May 16, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28525448/18f-fluorocholine-pet-ct-complementing-the-role-of-dynamic-contrast-enhanced-mri-for-providing-comprehensive-diagnostic-workup-in-prostate-cancer-patients-with-suspected-relapse-following-radical-prostatectomy
#3
Shelvin Kumar Vadi, Baljinder Singh, Rajender K Basher, Ankit Watts, Ashwani K Sood, Anupam Lal, Nandita Kakkar, S K Singh
PURPOSE: The aim of this study was to compare the diagnostic performance of F-fluorocholine (FCH) PET/CT and dynamic contrast-enhanced MRI (DCE-MRI) of pelvis in restaging prostate cancer (PC) patients with biochemical recurrence (BCR) following radical prostatectomy (RP). METHODS: Twenty PC patients who had undergone RP and had BCR were recruited in this study. All the patients underwent whole-body FCH PET/CT and DCE-MRI of the pelvis. An overall pattern of recurrent disease was analyzed, and diagnostic accuracy for the detection of pelvic disease recurrence by the 2 modalities was evaluated by taking histopathologic analysis as the criterion standard...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525372/overexpression-of-a-novel-candidate-oncogene-kif14-correlates-with-tumor-progression-and-poor-prognosis-in-prostate-cancer
#4
Yixiang Zhang, Yeqing Yuan, Pei Liang, Zhaoxia Zhang, Xiaojing Guo, Ligang Xia, Yingying Zhao, Xing-Sheng Shu, Shengkun Sun, Ying Ying, Yingduan Cheng
Prostate cancer (PCa) is the second leading cause of death from cancer in men. The mechanism underlying tumorigenesis and development of PCa is largely unknown. Here, we identified Kinesin family member 14 (KIF14) as a novel candidate oncogene in PCa. We found that KIF14 was overexpressed in multiple PCa cell lines and primary PCa tissues. Knockdown of KIF14 in DU145 and PC3 prostate cancer cells suppressed cell proliferation, induced cell cycle arrest and apoptosis. Transcriptome analysis by RNA-sequencing demonstrated that KIF4 suppression led to transcriptional changes of genes involved in p53 and TGF-beta signaling pathway...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525363/targeted-sequencing-of-tonsillar-and-base-of-tongue-cancer-and-human-papillomavirus-positive-unknown-primary-of-the-head-and-neck-reveals-prognostic-effects-of-mutated-fgfr3
#5
Cinzia Bersani, Lars Sivars, Linnea Haeggblom, Sebastian DiLorenzo, Michael Mints, Andreas Ährlund-Richter, Nikolaos Tertipis, Eva Munck-Wikland, Anders Näsman, Torbjörn Ramqvist, Tina Dalianis
BACKGROUND: Human papillomavirus positive (HPV+) tonsillar cancer (TSCC), base of tongue cancer (BOTSCC) and unknown primary cancer of the head and neck (HNCUP) have better outcome than corresponding HPV- cancers. To find predictive markers for response to treatment, and correlations and differences in mutated oncogenes and suppressor genes between HPV+ TSCC/BOTSSCC and HPV+ HNCUP and HPV- TSCC/BOTSCC targeted next-generation sequencing was performed of frequently mutated regions in 50 cancer related genes...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523302/the-use-of-ebus-tbna-and-rose-in-the-diagnosis-of-lung-cancer
#6
Mărioara Şimon, Bogdan Pop, Iuliana Lăcrămioara Toma, Aletta Kinga Vallasek, Ioan Şimon
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a minimally invasive method for diagnosing and staging of lung cancer. EBUS-TBNA obtained small specimens. Rapid on-site examination (ROSE) is a rapid, real-time examination method. The aim of our study is to evaluate the impact of ROSE on adequate specimen sampling, rapid results and high diagnostic rate. We present the experience of the Department of Bronchology, "Leon Daniello" Clinic of Pulmonology, Cluj-Napoca, Romania, with EBUS-TBNA as a tool for diagnostic of adenopathies of unknown etiology...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28521362/association-of-common-genetic-variants-with-contralateral-breast-cancer-risk-in-the-wecare-study
#7
Mark E Robson, Anne S Reiner, Jennifer D Brooks, Patrick J Concannon, Esther M John, Lene Mellemkjaer, Leslie Bernstein, Kathleen E Malone, Julia A Knight, Charles F Lynch, Meghan Woods, Xiaolin Liang, Robert W Haile, David J Duggan, Roy E Shore, Susan A Smith, Duncan C Thomas, Daniel O Stram, Jonine L Bernstein
Background: Women with unilateral breast cancer (UBC) are at risk of developing a subsequent contralateral breast cancer (CBC). Common variants are associated with breast cancer risk. Whether these influence CBC risk is unknown. Methods: Participants were breast cancer cases from the population-based Women's Environmental Cancer and Radiation Epidemiology (WECARE) Study. Sixty-seven established breast cancer risk loci were genotyped directly or by imputation in 1459 case subjects with CBC and 2126 UBC control subjects...
October 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28518151/disulfiram-copper-selectively-eradicates-aml-leukemia-stem-cells-in-vitro-and-in-vivo-by-simultaneous-induction-of-ros-jnk-and-inhibition-of-nf-%C3%AE%C2%BAb-and-nrf2
#8
Bing Xu, Shiyun Wang, Rongwei Li, Kai Chen, Lingli He, Manman Deng, Vinodh Kannappan, Jie Zha, Huijuan Dong, Weiguang Wang
Acute myeloid leukemia (AML) is a heterogeneous malignancy. Despite the advances in past decades, the clinical outcomes of AML patients remain poor. Leukemia stem cells (LSCs) is the major cause of the recurrence of AML even after aggressive treatment making, promoting development of LSC-targeted agents is an urgent clinical need. Although the antitumor activity of disulfiram (DS), an approved anti-alcoholism drug, has been demonstrated in multiple types of tumors including hematological malignancies such as AML, it remains unknown whether this agent would also be able to target cancer stem cells like LSCs...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28516286/establishment-of-a-tumor-sphere-cell-line-from-a-metastatic-brain-neuroendocrine-tumor
#9
Ryoichi Iwata, Masato Maruyama, Tomoki Ito, Yosuke Nakano, Yonehiro Kanemura, Taro Koike, Souichi Oe, Kunikazu Yoshimura, Masahiro Nonaka, Shosaku Nomura, Tetsuo Sugimoto, Hisao Yamada, Akio Asai
Neuroendocrine tumors are rare, and little is known about the existence of cancer stem cells in this disease. Identification of the tumorigenic population will contribute to the development of effective therapies targeting neuroendocrine tumors. Surgically resected brain metastases from a primary neuroendocrine tumor of unknown origin were dissociated and cultured in serum-free neurosphere medium. Stem cell properties, including self-renewal, differentiation potential, and stem cell marker expression, were examined...
May 17, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28514760/clinical-study-of-99mtc-3p-rgd2-peptide-imaging-in-osteolytic-bone-metastasis
#10
Guoqiang Shao, Wei Gu, Muhong Guo, Shiming Zang, Jinjing Fu, Shuang Liu, Feng Wang, Zizheng Wang
OBJECTIVE: To investigate the value of integrin αvβ3 targeted imaging with 99mTc-HYNIC-PEG4-E[PEG4-c(RGDfk)]2 (99mTc-3P-RGD2) as a radiotracer in dectecting osteolytic bone metastases. METHODS: This is a retrospective study involving a cohort of 69 consecutive patients including 59 with lung cancer and 10 with other cancers. Patients were required to receive whole body scan (WBS) and regional SPECT/CT imaging with 99mTc-3P-RGD2 (RGD imaging) and 99mTc-MDP (MDP imaging) as a radiotracer successively within days...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28513895/one-year-quality-of-life-and-functional-outcomes-of-transoral-robotic-surgery-for-carcinoma-of-unknown-primary
#11
Isa Ozbay, Ali Cemal Yumusakhuylu, Rishabh Sethia, Lai Wei, Matthew Old, Amit Agrawal, Theodoros Teknos, Enver Ozer
BACKGROUND: The purpose of this study was to assess the quality of life (QOL) outcomes in patients who underwent transoral robotic surgery (TORS) for carcinoma of unknown primary (CUP). METHODS: Twenty-nine patients with CUP were administered the Head and Neck Cancer Inventory (HNCI) prospectively to evaluate QOL preoperatively and postoperatively. RESULTS: There was statistically and clinically significant deterioration in 2 of 4 domains (eating and social disruption) in the immediate aftermath of TORS...
May 17, 2017: Head & Neck
https://www.readbyqxmd.com/read/28513319/effect-of-surface-functionalizations-of-multi-walled-carbon-nanotubes-on-neoplastic-transformation-potential-in-primary-human-lung-epithelial-cells
#12
Todd A Stueckle, Donna C Davidson, Ray Derk, Peng Wang, Sherri Friend, Diane Schwegler-Berry, Peng Zheng, Nianqiang Wu, Vince Castranova, Yon Rojanasakul, Liying Wang
Functionalized multi-walled carbon nanotube (fMWCNT) development has intensified to improve their surface activity for numerous applications, and potentially reduce toxic effects. Although MWCNT exposures are associated with lung tumorigenesis in vivo, adverse responses associated with exposure to different fMWCNTs in human lung epithelium are presently unknown. This study hypothesized that different plasma coating functional groups determine MWCNT neoplastic transformation potential. Using our established model, human primary small airway epithelial cells (pSAECs) were continuously exposed for 8 and 12 weeks at 0...
May 17, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28511652/ing3-promotes-prostate-cancer-growth-by-activating-the-androgen-receptor
#13
Arash Nabbi, Urszula L McClurg, Subhash Thalappilly, Amal Almami, Mahsa Mobahat, Tarek A Bismar, Olivier Binda, Karl T Riabowol
BACKGROUND: The androgen receptor (AR) is a major driver of prostate cancer, and increased AR levels and co-activators of the receptor promote the development of prostate cancer. INhibitor of Growth (ING) proteins target lysine acetyltransferase or lysine deacetylase complexes to the histone H3K4Me3 mark of active transcription, to affect chromatin structure and gene expression. ING3 is a stoichiometric member of the TIP60 lysine acetyltransferase complex implicated in prostate cancer development...
May 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28507832/disseminated-nocardia-farcinica-pneumonia-with-left-adrenal-gland-abscess
#14
Christopher Jackson, Brennan McCullar, Kiran Joglekar, Ankur Seth, Hiren Pokharna
Adrenal masses pose a diagnostic challenge. The differential diagnosis includes functional adrenal tumors, incidentally found adrenal masses, metastases from an unknown primary cancer, and abscesses. Infrequently, adrenal gland abscesses have been reported in disseminated nocardiosis affecting immunocompetent and immunocompromised patients. We report a case of disseminated Nocardia farcinica pneumonia with an adrenal gland abscess in an immunocompetent patient with no identified risk factors for nocardiosis...
April 12, 2017: Curēus
https://www.readbyqxmd.com/read/28505217/effect-of-combined-patient-decision-aid-and-patient-navigation-vs-usual-care-for-colorectal-cancer-screening-in-a-vulnerable-patient-population-a-randomized-clinical-trial
#15
Daniel S Reuland, Alison T Brenner, Richard Hoffman, Andrew McWilliams, Robert L Rhyne, Christina Getrich, Hazel Tapp, Mark A Weaver, Danelle Callan, Laura Cubillos, Brisa Urquieta de Hernandez, Michael P Pignone
Importance: Colorectal cancer (CRC) screening is underused, especially among vulnerable populations. Decision aids and patient navigation are potentially complementary interventions for improving CRC screening rates, but their combined effect on screening completion is unknown. Objective: To determine the combined effect of a CRC screening decision aid and patient navigation compared with usual care on CRC screening completion. Design, Setting, and Participants: In this randomized clinical trial, data were collected from January 2014 to March 2016 at 2 community health center practices, 1 in North Carolina and 1 in New Mexico, serving vulnerable populations...
May 15, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28504691/cxcr3-mediates-ascites-directed-tumor-cell-migration-and-predicts-poor-outcome-in-ovarian-cancer-patients
#16
C Windmüller, D Zech, S Avril, M Boxberg, T Dawidek, B Schmalfeldt, M Schmitt, M Kiechle, H Bronger
Intraabdominal tumor dissemination is a major hallmark of epithelial ovarian cancer (EOC), but the underlying mechanisms have not been fully elucidated. The CXCR3 chemokine receptor supports migration of tumor cells to metastatic sites, but its role in ovarian cancer metastasis is largely unknown. Herein, we first screened two independent cohorts of high-grade serous ovarian cancers (HGSCs, discovery set n=60, validation set n=117) and 102 metastatic lesions for CXCR3 expression. In primary tumors, CXCR3 was particularly overexpressed by tumor cells at the invasive front...
May 15, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28503860/epigenetic-silencing-of-adamts18-promotes-cell-migration-and-invasion-of-breast-cancer-through-akt-and-nf-%C3%AE%C2%BAb-signaling
#17
Hongying Xu, Qian Xiao, Yu Fan, Tingxiu Xiang, Chen Li, Chunhong Li, Shuman Li, Tianli Hui, Lu Zhang, Hongzhong Li, Lili Li, Guosheng Ren
ADAMTS18 dysregulation plays an important role in many disease processes including cancer. We previously found ADAMTS18 as frequently methylated tumor suppressor gene (TSG) for multiple carcinomas, however, its biological functions and underlying molecular mechanisms in breast carcinogenesis remain unknown. Here, we found that ADAMTS18 was silenced or downregulated in breast cancer cell lines. ADAMTS18 was reduced in primary breast tumor tissues as compared with their adjacent noncancer tissues. ADAMTS18 promoter methylation was detected in 70...
May 15, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28499438/early-developed-asd-adjacent-segmental-disease-in-patients-after-surgical-treatment-of-the-spine-due-to-cancer-metastases
#18
Grzegorz Guzik
BACKGROUND: The causes of ASD are still relatively unknown. Correlation between clinical status of patients and radiological MRI findings is of primary importance. The radiological classifications proposed by Pfirmann and Oner are most commonly used to assess intradiscal degenerative changes. The aim of the study was to assess the influence of the extension of spine fixation on the risk of developing ASD in a short time after surgery. METHODS: A total of 332 patients with spinal tumors were treated in our hospital between 2010 and 2013...
May 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28493837/long-non-coding-rnas-may-serve-as-biomarkers-in-breast-cancer-combined-with-primary-lung-cancer
#19
Xianfeng Ding, Yuhan Zhang, Hongjian Yang, Weimin Mao, Bo Chen, Shifeng Yang, Xiaowen Ding, Dehong Zou, Wenju Mo, Xiangming He, Xiping Zhang
Long non-coding RNAs (lncRNAs) have been shown to play important regulatory role in certain type of cancers biology, including breast and lung cancers. However, the lncRNA expression in breast cancer combined with primary lung cancer remains unknown. In this study, databases of the Cancer Genome Atlas (TCGA) and the lncRNA profiler of contained candidate 192 lncRNAs were utilized. 11 lncRNAs were differentially expressed in breast cancer, 9 candidate lncRNAs were differentially expressed in lung cancer. In order to find the aberrant expression of lncRNAs in breast cancer combined with primary lung cancer, seven samples of primary breast cancer and lung cancer were studied for the expression of selected lncRNAs...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28492914/antibiotic-prescribing-for-nonbacterial-acute-upper-respiratory-infections-in-elderly-persons
#20
Michael Silverman, Marcus Povitz, Jessica M Sontrop, Lihua Li, Lucie Richard, Sonny Cejic, Salimah Z Shariff
Background: Reducing inappropriate antibiotic prescribing for acute upper respiratory tract infections (AURIs) requires a better understanding of the factors associated with this practice. Objective: To determine the prevalence of antibiotic prescribing for nonbacterial AURIs and whether prescribing rates varied by physician characteristics. Design: Retrospective analysis of linked administrative health care data. Setting: Primary care physician practices in Ontario, Canada (January-December 2012)...
May 9, 2017: Annals of Internal Medicine
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