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https://www.readbyqxmd.com/read/28324887/association-between-hypoxic-volume-and-underlying-hypoxia-induced-gene-expression-in-oropharyngeal-squamous-cell-carcinoma
#1
Yae-Eun Suh, Katherine Lawler, Rhonda Henley-Smith, Lucy Pike, Russell Leek, Sally Barrington, Edward W Odell, Tony Ng, Francesco Pezzella, Teresa Guerrero-Urbano, Mahvash Tavassoli
BACKGROUND: Hypoxia imaging is a promising tool for targeted therapy but the links between imaging features and underlying molecular characteristics of the tumour have not been investigated. The aim of this study was to compare hypoxia biomarkers and gene expression in oropharyngeal squamous cell carcinoma (OPSCC) diagnostic biopsies with hypoxia imaged with (64)Cu-ATSM PET/CT. METHODS: (64)Cu-ATSM imaging, molecular and clinical data were obtained for 15 patients...
March 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28324640/cytogenetics-and-comorbidity-predict-outcomes-in-older-myelodysplastic-syndrome-patients-after-allogenic-stem-cell-transplantation-using-reduced-intensity-conditioning
#2
Orhan Kemal Yucel, Rima M Saliba, Gabriella Rondon, Sairah Ahmed, Amin Alousi, Qaiser Bashir, Stefan O Ciurea, Uday Popat, Isa Khouri, David Marin, Katy Rezvani, Partow Kebriaei, Elizabeth J Shpall, Richard E Champlin, Betül Oran
BACKGROUND: Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only treatment with a curative potential for myelodysplastic syndrome (MDS) patients. Allo-HSCT has substantial risks, particularly in the elderly, and its role for older MDS patients has yet to be defined. METHODS: We analyzed 88 MDS patients aged ≥ 60 years with allo-HSCT after reduced intensity conditioning regimens over the last decade. The study cohort had high risk features; 47 of 88 (53...
March 21, 2017: Cancer
https://www.readbyqxmd.com/read/28324583/revisiting-cdk-inhibitors-for-treatment-of-glioblastoma-multiforme
#3
REVIEW
Dorota Lubanska, Lisa Porter
Despite extensive efforts and continual progress in research and medicine, outcomes for patients with high-grade glioma remain exceptionally poor. Over the past decade, research has revealed a great deal about the complex biology behind glioma development, and has brought to light some of the major barriers preventing successful treatment. Glioblastoma multiforme (GBM) (stage 4 astrocytoma) is a highly dynamic tumour and one of the most extreme examples of intratumoural heterogeneity, making targeting with specific therapeutics an inefficient and highly unpredictable goal...
March 21, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28324275/the-impact-of-blue-light-cystoscopy-on-the-diagnosis-and-treatment-of-bladder-cancer
#4
REVIEW
Eugene J Pietzak
Photodynamic diagnostic technique with blue light cystoscopy (BLC) takes advantage of the preferential uptake and accumulation of protoporphyrins in neoplastic tissue which emit a red fluorescence when illuminated with blue light (360-450 nm wavelengths). This allows enhanced visualization of small papillary tumors and flat carcinoma in situ lesions that might have been missed on white light cystoscopy (WLC). There is compelling evidence that the ability of BLC to detect these additional tumors translates into improved recurrence rates compared to WLC...
May 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28324268/a-phase-ii-study-of-combined-ridaforolimus-and-dalotuzumab-compared-with-exemestane-in-patients-with-estrogen-receptor-positive-breast-cancer
#5
José Baselga, Serafin M Morales, Ahmad Awada, Joanne L Blum, Antoinette R Tan, Marianne Ewertz, Javier Cortes, Beverly Moy, Kathryn J Ruddy, Tufia Haddad, Eva M Ciruelos, Peter Vuylsteke, Scot Ebbinghaus, Ellie Im, Lamar Eaton, Kumudu Pathiraja, Christine Gause, David Mauro, Mary Beth Jones, Hope S Rugo
PURPOSE: Combining the mTOR inhibitor ridaforolimus and the anti-IGFR antibody dalotuzumab demonstrated antitumor activity, including partial responses, in estrogen receptor (ER)-positive advanced breast cancer, especially in high proliferation tumors (Ki67 > 15%). METHODS: This randomized, multicenter, international, phase II study enrolled postmenopausal women with advanced ER-positive breast cancer previously treated with a nonsteroidal aromatase inhibitor (NCT01234857)...
March 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28324266/quality-of-life-in-patients-with-recurrent-breast-cancer-after-second-breast-conserving-therapy-in-comparison-with-mastectomy-the-german-experience
#6
Svenja Jendrian, Katharina Steffens, Barbara Schmalfeldt, Elena Laakmann, Corinna Bergelt, Isabell Witzel
BACKGROUND: Although some studies suggest that breast-conserving therapy (BCT) shows better psychosocial outcomes than mastectomy in patients with primary breast cancer, little is known about the outcomes of these surgical options in recurrent breast cancer. We investigated differences in overall survival and re-recurrence rates as well as psychosocial outcomes among patients who underwent BCT or mastectomy after the diagnosis of recurrent breast cancer in a single-center setting. METHODS: 124 of 186 eligible patients who underwent surgical treatment for breast cancer recurrence completed the questionnaires on quality of life (EORTC QLQ-C30 and -BR23), fear of progression (PA-F-KF), anxiety and depression (HADS), and body image (BIS)...
March 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28324265/cardiac-safety-efficacy-and-correlation-of-serial-serum-her2-extracellular-domain-shed-antigen-measurement-with-the-outcome-of-the-combined-trastuzumab-plus-cmf-in-women-with-her2-positive-metastatic-breast-cancer-results-from-the-eortc-10995-phase-ii-study
#7
Konstantinos Tryfonidis, S Marreaud, H Khaled, B De Valk, J Vermorken, M Welnicka-Jaskiewicz, K Aalders, J M S Bartlett, L Biganzoli, J Bogaerts, David Cameron
PURPOSE: Cardiotoxicity is a side effect of trastuzumab. We assessed efficacy and cardiac safety of CMF with trastuzumab (CMF+T) in HER2-positive metastatic breast cancer patients (MBC). METHODS: In this phase II study, centrally confirmed, previously treated HER2-positive MBC patients with measurable disease (per RECIST v 1.0) were enrolled. Initially, patients were randomized between 8 CMF cycles alone or combined with trastuzumab during chemotherapy, followed by 3-weekly trastuzumab maintenance till progression...
March 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28324247/fulvestrant-plus-targeted-agents-versus-fulvestrant-alone-for-treatment-of-hormone-receptor-positive-advanced-breast-cancer-progressed-on-previous-endocrine-therapy-a-meta-analysis-of-randomized-controlled-trials
#8
REVIEW
Wen-Zhao Lin, Qi-Ni Xu, Hong-Biao Wang, Xu-Yuan Li
To compare the addition of targeted agents to fulvestrant with fulvestrant alone in hormone-receptor positive advanced breast cancer progressed on previous endocrine therapy; a meta-analysis of all relevant randomized controlled trials was performed. The PubMed, Embase databases and the Cochrane Central Register of Controlled Trials were searched for relevant publications reporting randomized controlled trials between January 2000 and June 2016. Progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and toxicity were assessed...
March 21, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28324120/-biological-mechanisms-of-radiation-effects
#9
S Gruber, W Dörr
BACKGROUND: Exposure to ionizing radiation for diagnostic purposes is inevitable in modern medicine. The therapeutic application of irradiation is highly effective against cancer; however, this implies exposure of normal tissue structures to significant doses of radiation. Diagnostic or therapeutic exposure to ionizing radiation can result in tissue changes and tumor induction in the long term. Knowledge of the biological mechanisms underlying these effects is essential for individualization of the application...
March 21, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28324060/expression-of-pd-1-and-pd-l1-in-anaplastic-thyroid-cancer-patients-treated-with-multimodal-therapy-results-from-a-retrospective-study
#10
Ashish V Chintakuntlawar, Kandelaria M Rumilla, Carin Y Smith, Sarah M Jenkins, Robert L Foote, Jan L Kasperbauer, John C Morris, Mabel Ryder, Samer Alsidawi, Crystal Hilger, Keith C Bible
Context: Anaplastic thyroid cancer (ATC) is rare and a highly fatal malignancy. The role of PD-1 and PD-L1 as prognostic and/or predictive marker in ATC is unknown. Objective: Multimodal therapy offers the best chance at tumor control. Objective of this study was to detect potential associations of PD-1/PD-L1 axis variables with outcome data in ATC. Design: Retrospective study of a uniformly treated cohort. Setting: Single institution retrospective cohort study...
March 7, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28324044/inverse-regulation-of-dht-synthesis-enzymes-5%C3%AE-reductase-types-1-and-2-by-the-androgen-receptor-in-prostate-cancer
#11
Étienne Audet-Walsh, Tracey Yee, Ingrid S Tam, Vincent Giguère
5α-reductase types 1 and 2, encoded by SRD5A1 and SRD5A2, are the two enzymes that can catalyze the conversion of testosterone to dihydrotestosterone, the most potent androgen receptor (AR) agonist in prostate cells. 5α-reductase type 2 is the predominant isoform expressed in the normal prostate. However, its expression decreases during prostate cancer (PCa) progression, while SRD5A1 increases and the mechanism underlying this transcriptional regulatory switch is still unknown. Interrogation of SRD5A mRNA expression in three publicly available datasets confirmed that SRD5A1 is increased in primary and metastatic PCa compared to non-tumoral prostate tissues, while SRD5A2 is decreased...
January 23, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323888/lzts2-and-pten-collaboratively-regulate-%C3%A3-catenin-in-prostatic-tumorigenesis
#12
Eun-Jeong Yu, Erika Hooker, Daniel T Johnson, Mi Kyung Kwak, Kang Zou, Richard Luong, Yongfeng He, Zijie Sun
The leucine zipper tumor suppressor 2 (LZTS2) was identified as a tumor susceptibility gene within the 10q24.3 chromosomal region, and is approximately 15Mb from the PTEN locus. This region containing the both loci is frequently deleted in a variety of human malignancies, including prostate cancer. LZTS2 is a ß-catenin-binding protein and a negative regulator of Wnt signaling. Overexpression of PTEN in prostate cancer cell lines reduces ß-catenin-mediated transcriptional activity. In this study, we examined the collaborative effect of PTEN and LZTS2 using multiple in vitro and in vivo approaches...
2017: PloS One
https://www.readbyqxmd.com/read/28323683/genetic-alzheimer-disease-and-sporadic-dementia-with-lewy-bodies-a-comorbidity-presenting-as-primary-progressive-aphasia
#13
Tereza Picková, Radoslav Matěj, Ondrej Bezdicek, Jiří Keller, Julie van der Zee, Christine Van Broeckhoven, Zsolt Cséfalvay, Robert Rusina
We report a 44-year-old woman, with a family history of early-onset dementia, presenting with primary progressive aphasia. This clinically variable syndrome has multiple underlying pathologies, and correlations between clinical manifestations and postmortem neuropathologic findings are controversial. Our patient suffered worsening language impairment with major word-finding difficulties but preserved comprehension. She also developed episodic memory impairment. Her condition progressed to dementia with behavioral changes...
March 2017: Cognitive and Behavioral Neurology: Official Journal of the Society for Behavioral and Cognitive Neurology
https://www.readbyqxmd.com/read/28323500/strategies-to-target-glucose-metabolism-in-tumor-microenvironment-on-cancer-by-flavonoids
#14
Gang Wang, Jun-Jie Wang, Rui Guan, Li Du, Jing Gao, Xing-Li Fu
The imbalance between glucose metabolism and cancer cell growth in tumor microenvironment (TME), which are closely related with the occurrence and progression of cancer. Accumulating evidence has demonstrated that flavonoids exert many biological properties, including antioxidant and anticarcinogenic activities. Recently, the roles and applications of flavonoids, particularly in relation to glucose metabolism in cancers, have been highlighted. Thus, the identification of flavonoids targeting alternative glucose metabolism pathways in TME may represent an attractive approach to the more effective therapeutic strategies for cancer...
March 21, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28323497/potential-mechanisms-underlying-cdk5-related-osteosarcoma-progression
#15
Hang-Xing Bao, Qing Bi, Yong Han, Chen Zhao, Hai Zou
OBJECTIVES: Identification of new prognostic biomarkers and therapeutic targets is of crucial importance for patients with osteosarcoma. Cyclin-dependent kinase 5 (CDK5) is overexpressed in several tumor types. However, the exact role CDK5 plays in osteosarcoma is still unknown. METHODS: In this study, we explored the association between CDK5 expression and the prognosis of osteosarcoma patients using publicly available gene expression datasets. Potential molecular mechanisms underlying its pro-malignant role in cancer progression were also discussed...
March 21, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28320104/sulfatase-2-promotes-the-growth-and-metastasis-of-colorectal-cancer-by-activating-akt-and-erk1-2-pathways
#16
Youmao Tao, Tao Han, Tao Zhang, Caixia Sun
The molecular mechanisms underlying the growth and metastasis of colorectal cancer (CRC) remain largely unknown. Sulfatase-2 (SULF2) was found to play critical roles in human cancers. Recent study reported that SULF1/2 overexpression resulted in increased viability and proliferation, and augmented cell migration in CRC cells. However, the expression of SULF2 and its underlying molecular mechanisms in CRC remain unknown. In this study, we found that the expressions of SULF2 in CRC tissues and cell lines were significantly increased compared to control groups...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319828/genistein-affects-proliferation-and-migration-of-bovine-oviductal-epithelial-cells
#17
Daniela C García, Pablo A Valdecantos, Dora C Miceli, Mariela Roldán-Olarte
Genistein is one of the most abundant isoflavones in soybean. This molecule induces cell cycle arrest and apoptosis in different normal and cancer cells. Genistein has been of considerable interest due to its adverse effects on bovine reproduction, altering estrous cycle, implantation and fetal development and producing subfertility or infertility. The objective of this work was to study the effects of genistein on the expression of selected genes involved in the regulation of cell cycle and apoptosis. Primary cultures of bovine oviductal epithelial cells (BOEC) were treated with different genistein concentrations (0...
March 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28319807/targeting-nf-kappa-b-signaling-by-artesunate-restores-sensitivity-of-castrate-resistant-prostate-cancer-cells-to-antiandrogens
#18
Jessica J Nunes, Swaroop K Pandey, Anjali Yadav, Sakshi Goel, Bushra Ateeq
Androgen deprivation therapy (ADT) is the most preferred treatment for men with metastatic prostate cancer (PCa). However, the disease eventually progresses and develops resistance to ADT in majority of the patients, leading to the emergence of metastatic castration-resistant prostate cancer (mCRPC). Here, we assessed artesunate (AS), an artemisinin derivative, for its anticancer properties and ability to alleviate resistance to androgen receptor (AR) antagonists. We have shown AS in combination with bicalutamide (Bic) attenuates the oncogenic properties of the castrate-resistant (PC3, 22RV1) and androgen-responsive (LNCaP) PCa cells...
March 16, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28319448/rationale-and-design-of-a-phase-1-clinical-trial-to-evaluate-hsv-g207-alone-or-with-a-single-radiation-dose-in-children-with-progressive-or-recurrent-malignant-supratentorial-brain-tumors
#19
Alicia M Waters, James M Johnston, Alyssa T Reddy, John Fiveash, Avi Madan-Swain, Kara Kachurak, Asim K Bag, G Yancey Gillespie, James M Markert, Gregory K Friedman
Primary central nervous system tumors are the most common solid neoplasm of childhood and the leading cause of cancer-related death in pediatric patients. Survival rates for children with malignant supratentorial brain tumors are poor despite aggressive treatment with combinations of surgery, radiation, and chemotherapy, and survivors often suffer from damaging lifelong sequelae from current therapies. Novel innovative treatments are greatly needed. One promising new approach is the use of a genetically engineered, conditionally replicating herpes simplex virus (HSV) that has shown tumor-specific tropism and potential efficacy in the treatment of malignant brain tumors...
March 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28319221/fluorescent-chemical-probes-for-accurate-tumor-diagnosis-and-targeting-therapy
#20
REVIEW
Min Gao, Fabiao Yu, Changjun Lv, Jaebum Choo, Lingxin Chen
Surgical resection of solid tumors is currently the gold standard and preferred therapeutic strategy for cancer. Chemotherapy drugs also make a significant contribution by inhibiting the rapid growth of tumor cells and these two approaches are often combined to enhance treatment efficacy. However, surgery and chemotherapy inevitably lead to severe side effects and high systemic toxicity, which in turn results in poor prognosis. Precision medicine has promoted the development of treatment modalities that are developed to specifically target and kill tumor cells...
March 20, 2017: Chemical Society Reviews
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