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https://www.readbyqxmd.com/read/28449209/the-frequency-of-qtc-prolongation-among-pediatric-and-young-adult-patients-receiving-methadone-for-cancer-pain
#1
Kevin Madden, Minjeong Park, Diane Liu, Eduardo Bruera
INTRODUCTION: A prolonged corrected QT (QTc) interval in pediatric patients is defined as ≥470 msec. Methadone can cause a prolonged QTc interval that can lead to ventricular arrhythmias. The risk of methadone-induced prolongation of the QTc interval in children and young adults is unknown. The purpose of the study was to determine the frequency of QTc prolongation among pediatric and young adult patients with cancer pain on methadone treatment. METHODS: We retrospectively reviewed data for all patients on methadone during the study period...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28449059/marijuana-use-impacts-midlife-cardiovascular-events-in-hiv-infected-men
#2
David R Lorenz, Anupriya Dutta, Shibani S Mukerji, Alex Holman, Hajime Uno, Dana Gabuzda
Background.: Marijuana use is prevalent among persons infected with HIV, but its long-term effects on HIV disease progression and comorbidities are unknown. Methods.: A prospective study of 558 HIV-infected men enrolled in the Multicenter AIDS Cohort Study between 1990-2010: 182 HIV seroconverters and 376 with viral suppression on combination antiretroviral therapy (ART). Associations between heavy marijuana use and HIV disease markers or white blood cell (WBC) count were examined using mixed-effects and linear regression models...
April 25, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28448959/detection-of-circulating-tumor-cells-and-circulating-tumor-microemboli-in-gastric-cancer
#3
Xiumei Zheng, Li Fan, Pengfei Zhou, Hong Ma, Shaoyi Huang, Dandan Yu, Lei Zhao, Shengli Yang, Jun Liu, Ai Huang, Congli Cai, Xiaomeng Dai, Tao Zhang
PURPOSE: Gastric cancer studies indicated a potential correlation between circulating tumor cells (CTCs) in peripheral blood and tumor relapse/metastasis. The prevalence and significance of circulating tumor microemboli (CTM) in gastric cancer remain unknown. We investigated the prevalence and prognostic value of CTCs and CTM for progression-free survival (PFS) and overall survival (OS) in gastric cancer patients. METHODS: Eighty-one gastric cancer patients consented to provide 5ml of peripheral blood before systematic therapy...
April 24, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28448802/ddk-promotes-tumor-chemoresistance-and-survival-via-multiple-pathways
#4
Nanda Kumar Sasi, Arjun Bhutkar, Nathan J Lanning, Jeffrey P MacKeigan, Michael Weinreich
DBF4-dependent kinase (DDK) is a two-subunit kinase required for initiating DNA replication at individual origins and is composed of CDC7 kinase and its regulatory subunit DBF4. Both subunits are highly expressed in many diverse tumor cell lines and primary tumors, and this is correlated with poor prognosis. Inhibiting DDK causes apoptosis of tumor cells, but not normal cells, through a largely unknown mechanism. Firstly, to understand why DDK is often overexpressed in tumors, we identified gene expression signatures that correlate with DDK high- and DDK low-expressing lung adenocarcinomas...
April 24, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28447737/17%C3%AE-estradiol-protects-against-doxorubicin-induced-cardiotoxicity-in-male-sprague-dawley-rats-by-regulating-nadph-oxidase-and-apoptosis-genes
#5
Xiao-Juan Zhang, Xiao-Qing Cao, Chun-Sheng Zhang, Zhuo Zhao
Doxorubicin (DOX) is one of the most effective chemotherapeutic agents for the treatment of a number of malignancies. However, its use is limited by serious cardiotoxic effects, for which there are currently no reliable pharmacologic therapies. Estrogen has exhibited protective effects against cardiac stressors in male and female animal models; however, its effects on DOX‑induced cardiotoxicity remain unknown. High mortality and morbidity rates have been observed in patients with cancer worldwide, and DOX is often administered to a greater number of men than women...
March 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447602/spatial-computation-of-intratumoral-t-cells-correlates-with-survival-of-patients-with-pancreatic-cancer
#6
Julienne L Carstens, Pedro Correa de Sampaio, Dalu Yang, Souptik Barua, Huamin Wang, Arvind Rao, James P Allison, Valerie S LeBleu, Raghu Kalluri
The exact nature and dynamics of pancreatic ductal adenocarcinoma (PDAC) immune composition remains largely unknown. Desmoplasia is suggested to polarize PDAC immunity. Therefore, a comprehensive evaluation of the composition and distribution of desmoplastic elements and T-cell infiltration is necessary to delineate their roles. Here we develop a novel computational imaging technology for the simultaneous evaluation of eight distinct markers, allowing for spatial analysis of distinct populations within the same section...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28447236/the-history-of-an-unknown-dermatological-wax-collection-from-cluj-napoca-university-iuliu-hatieganu-romania
#7
Alexandru-Dumitru Tataru, Dan Tataru, Maria Grazia Roccia, Katlein França, Massimo Fioranelli, Torello Lotti
Among the dermatological wax collections across Europe, one of the latest created is the collection from Cluj-Napoca University, Romania. The initiator was Professor Coriolan Tataru and the moulage artist employed was Dr. Richard Hoffmann. Between the years 1923 and 1928, around 200 wax moulages were made, all realised after patients hospitalised in the clinic. The majority of cases represent the dermatological infectious pathology of that time: syphilis, cutaneous tuberculosis and mycetomas. Other interesting moulages represent genodermatoses, pelagra, different cutaneous cancers, and atypical aspects of common diseases like psoriasis and eczemas...
April 26, 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28446751/crl4b-dcaf11-e3-ligase-targets-p21-for-degradation-to-control-cell-cycle-progression-in-human-osteosarcoma-cells
#8
Zhi Chen, Kun Wang, Canglong Hou, Kaibiao Jiang, Bin Chen, Jianwei Chen, Lifeng Lao, Lie Qian, Guibin Zhong, Zude Liu, Caiguo Zhang, Hongxing Shen
Cell cycle progression in mammals is strictly controlled by a number of cyclin-dependent kinases (CDKs) and CDK inhibitors (CKIs), the expression of which is often dysregulated in cancer cells. Our previous work revealed that Cullin 4B (CUL4B), a critical component of the Cullin4B-RING E3 ligase complex (CRL4B), is overexpressed in human osteosarcoma cells through an unknown mechanism. Here, we demonstrated that CUL4B forms an E3 ligase with RBX1 (RING-box 1), DDB1 (DNA damage binding protein 1), and DCAF11 (DDB1 and CUL4 associated factor 11) in human osteosarcoma cells...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28446639/concordance-of-genomic-alterations-by-next-generation-sequencing-ngs-in-tumor-tissue-versus-circulating-tumor-dna-in-breast-cancer
#9
Young Kwang Chae, Andrew A Davis, Sarika Jain, Cesar Santa-Maria, Lisa Flaum, Nike Beaubier, Leonidas C Platanias, William Gradishar, Francis J Giles, Massimo Cristofanilli
While identifying genomic alterations in tumor tissue is the current gold-standard technique for molecular profiling, circulating tumor DNA (ctDNA) represents a non-invasive method of assessing genomic alterations using peripheral blood. The concordance of genomic alterations between two commercially-available ctDNA and tissue biopsies was compared in 45 patients with breast cancer using paired next-generation sequencing tissue and ctDNA biopsies. Across all genes, concordance between the two platforms was 91...
April 26, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28446525/effectiveness-of-befriending-interventions-a-systematic-review-and-meta-analysis
#10
Joyce Siette, Megan Cassidy, Stefan Priebe
OBJECTIVE: Befriending is an emotional supportive relationship in which one-to-one companionship is provided on a regular basis by a volunteer. It is commonly and increasingly offered by the voluntary sector for individuals with distressing physical and mental conditions. However, the effectiveness of this intervention on health outcomes is largely unknown. We aim to conduct a systematic review of the benefits of befriending. DESIGN: Systematic review. METHODS: A systematic search of electronic databases was conducted to identify randomised controlled trials and quasi-experimental trials of befriending for a range of physical and mental health indications including depression, anxiety, mental illness, cancer, physical illness and dementia...
April 26, 2017: BMJ Open
https://www.readbyqxmd.com/read/28446439/pax3-foxo1-establishes-myogenic-super-enhancers-and-confers-bet-bromodomain-vulnerability
#11
Berkley E Gryder, Marielle E Yohe, Hsien-Chao Chou, Xiaohu Zhang, Joana Marques, Marco Wachtel, Beat Schaefer, Nirmalya Sen, Young K Song, Alberto Gualtieri, Silvia Pomella, Rossella Rota, Abigail Cleveland, Xinyu Wen, Sivasish Sindiri, Jun S Wei, Frederic G Barr, Sudipto Das, Thorkell Andresson, Rajarshi Guha, Madhu Lal-Nag, Marc Ferrer, Jack F Shern, Keji Zhao, Craig J Thomas, Javed Khan
Alveolar rhabdomyosarcoma is a life-threatening myogenic cancer of children and adolescent young adults, driven primarily by the chimeric transcription factor PAX3-FOXO1 (P3F). The mechanisms by which P3F dysregulates chromatin are unknown. We find P3F reprograms the cis-regulatory landscape by inducing (de novo) super enhancers (SEs). P3F uses SEs to setup auto-regulatory loops in collaboration with master transcription factors MYOG, MYOD and MYCN. This myogenic SE circuitry is consistent across cell lines and primary tumors...
April 26, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28445953/yeats4-promotes-the-tumorigenesis-of-pancreatic-cancer-by-activating-beta-catenin-tcf-signaling
#12
Chen Jixiang, Dang Shengchun, Qu Jianguo, Mao Zhengfa, Fan Xin, Wang Xuqing, Zhang Jianxin, Cui Lei
Beta-catenin/TCF signaling has been reported to promote the growth and metastasis of pancreatic cancer cells. However, the regulation for the beta-catenin/TCF transcriptional complex remains largely unknown. Here, we have found that YEATS4 is a positive regulator for Beta-catenin/TCF signaling. The expression of YEATS4 was elevated in clinical pancreatic cancer samples and pancreatic cancer mouse model. Up-regulation of YEATS4 promoted the growth, migration and invasion of pancreatic cancer cells, while knocking down the expression of YEATS4 inhibited the growth, migration, invasion and metastasis of pancreatic cancer cells...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445461/tumour-ischaemia-by-interferon-%C3%AE-resembles-physiological-blood-vessel-regression
#13
Thomas Kammertoens, Christian Friese, Ainhoa Arina, Christian Idel, Dana Briesemeister, Michael Rothe, Andranik Ivanov, Anna Szymborska, Giannino Patone, Severine Kunz, Daniel Sommermeyer, Boris Engels, Matthias Leisegang, Ana Textor, Hans Joerg Fehling, Marcus Fruttiger, Michael Lohoff, Andreas Herrmann, Hua Yu, Ralph Weichselbaum, Wolfgang Uckert, Norbert Hübner, Holger Gerhardt, Dieter Beule, Hans Schreiber, Thomas Blankenstein
The relative contribution of the effector molecules produced by T cells to tumour rejection is unclear, but interferon-γ (IFNγ) is critical in most of the analysed models. Although IFNγ can impede tumour growth by acting directly on cancer cells, it must also act on the tumour stroma for effective rejection of large, established tumours. However, which stroma cells respond to IFNγ and by which mechanism IFNγ contributes to tumour rejection through stromal targeting have remained unknown. Here we use a model of IFNγ induction and an IFNγ-GFP fusion protein in large, vascularized tumours growing in mice that express the IFNγ receptor exclusively in defined cell types...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445396/mir-103-promotes-proliferation-and-metastasis-by-targeting-klf4-in-gastric-cancer
#14
Jie Zheng, Yuzhen Liu, Yanchun Qiao, Liying Zhang, Shijun Lu
MicroRNAs (miRNAs) play important roles in the cancer development and progression; overexpression of miR-103 has been identified in various tumors. However, its biological function and regulatory mechanism involved in modulation of human gastric cancer (GC) remain largely unknown. This study aimed to confirm clinical significance of miR-103 and investigate its biological role and underlying mechanism in GC. Real-time quantitative PCR (qRT-PCR) revealed miR-103 was highly expressed in GC tissues and cell lines...
April 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28445086/long-noncoding-rna-highly-upregulated-in-liver-cancer-activates-p53-p21-pathway-and-promotes-nasopharyngeal-carcinoma-cell-growth
#15
Xue Jiang, Weiwei Liu
Dysfunction of lncRNA has been found in the nasopharyngeal carcinoma (NPC); however, the effect of lncRNA expression on NPC tumorigenesis as well as the molecular mechanism of lncRNA in the pathogenesis of NPC remain largely unknown. In this study, we showed that highly upregulated in liver cancer (HULC), the first identified lncRNA in hepatocellular carcinoma, is highly expressed in NPC patients and correlated with a poor prognosis of cancer patients. Overexpressed HULC promotes NPC cell growth. Downregulation of HULC activated p53 and induced the increased expression of p21, which finally caused cell cycle arrest and cell apoptosis...
April 26, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28444899/tumour-vascular-leakage-defect-due-to-endothelium-targeted-fak-kinase-dead-mutation-is-abrogated-by-fak-y397e-expression
#16
Annika N Alexopoulou, Delphine M Lees, Natalia Bodrug, Tanguy Lechertier, Isabelle Fernandez, Gabriela D'Amico, Matthew Dukinfield, Silvia Batista, Bernardo Tavora, Bryan Serrels, Kairbaan Hodivala-Dilke
Focal adhesion kinase (FAK) inhibitors have been developed as potential anti-cancer agents and are in clinical trials. In vitro activation of FAK kinase domain triggers autophosphorylation of tyrosine 397 (Y397), Src activation and subsequent phosphorylation of other FAK tyrosine residues. However, how FAK-Y397 mutations affect FAK-kinase-dead phenotypes in tumour angiogenesis in vivo is unknown. We developed three Pdgfb-iCre(ert) -driven endothelial-cell (EC)-specific, tamoxifen-inducible homozygous mutant mouse lines: FAK wild-type (WT), FAK kinase-dead (KD), and double mutant (DM); KD with a putatively phosphomimetic Y397E mutation...
April 26, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28444861/lncrna-malat1-is-dysregulated-in-diabetic-nephropathy-and-involved-in-high-glucose-induced-podocyte-injury-via-its-interplay-with-%C3%AE-catenin
#17
Mengsi Hu, Rong Wang, Xiaobing Li, Minghua Fan, Jiangong Lin, Junhui Zhen, Liqun Chen, Zhimei Lv
Metastasis associated lung adenocarcinoma transcript 1(MALAT1) is a long non-coding RNA, broadly expressed in mammalian tissues including kidney and up-regulated in a variety of cancer cells. To date, its functions in podocytes are largely unknown. β-catenin is a key mediator in the canonical and non-canonical Wnt signalling pathway; its aberrant expression promotes podocyte malfunction and albuminuria, and contributes to kidney fibrosis. In this study, we found that MALAT1 levels were increased in kidney cortices from C57BL/6 mice with streptozocin (STZ)-induced diabetic nephropathy, and dynamically regulated in cultured mouse podocytes stimulated with high glucose, which showed a trend from rise to decline...
April 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28443890/the-characteristic-landscape-of-lncrnas-classified-by-rbp-lncrna-interactions-across-10-cancers
#18
Qiang Zhang, Yunzhen Wei, Zichuang Yan, Cheng Wu, Zhiqiang Chang, Yinling Zhu, Kun Li, Yan Xu
RNA-binding proteins (RBPs) are key regulators of gene expression. Some long non-coding RNAs (lncRNAs) affect gene expression by interacting with RBPs. However, whether this influences the biological characteristics of lncRNAs in diseases still remains unknown. Here, we classify lncRNAs into two categories, using the interaction information between lncRNAs and RBPs: the lncRNAs that interact with RBPs (Rlncs) and the lncRNAs that do not interact with RBPs (NRlncs). Then we systematically analyze the basic attributes and functions of the two categories of lncRNAs across 10 cancers...
April 26, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28443461/mir-1202-functions-as-a-tumor-suppressor-in-glioma-cells-by-targeting-rab1a
#19
Yu Quan, Qian Song, Jvbo Wang, Lingyu Zhao, Jian Lv, Shouping Gong
Aberrant expression of microRNAs correlates with the development and progression of human cancers by targeting downstream proteins. MiR-1202 is downregulated in ovarian cancer and clear cell papillary renal cell carcinoma; however, its role in glioma remains unknown. The purpose of this study was to determine the expression and the role of miR-1202 and to elucidate its regulatory mechanism in glioma. We used quantitative real-time polymerase chain reaction to measure miR-1202 expression in both glioma tissues and cell lines...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28443025/honokiol-induces-apoptosis-g1-arrest-and-autophagy-in-kras-mutant-lung-cancer-cells
#20
Lian-Xiang Luo, Ying Li, Zhong-Qiu Liu, Xing-Xing Fan, Fu-Gang Duan, Run-Ze Li, Xiao-Jun Yao, Elaine Lai-Han Leung, Liang Liu
Aberrant signaling transduction induced by mutant KRAS proteins occurs in 20∼30% of non-small cell lung cancer (NSCLC), however, a direct and effective pharmacological inhibitor targeting KRAS has not yet reached the clinic to date. Honokiol, a small molecular polyphenol natural biophenolic compound derived from the bark of magnolia trees, exerts anticancer activity, however, its mechanism remains unknown. In this study, we sought to investigate the in vitro effects of honokiol on NSCLC cell lines harboring KRAS mutations...
2017: Frontiers in Pharmacology
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