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Cancer susceptibility

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https://www.readbyqxmd.com/read/28102776/targeted-delivery-of-cisplatin-to-tumor-xenografts-via-the-nanoparticle-component-of-nano-diamino-tetrac
#1
Thangirala Sudha, Dhruba J Bharali, Murat Yalcin, Noureldien He Darwish, Melis Debreli Coskun, Kelly A Keating, Hung-Yun Lin, Paul J Davis, Shaker A Mousa
AIM: Nano-diamino-tetrac (NDAT) targets a receptor on integrin αvβ3; αvβ3 is generously expressed by cancer cells and dividing endothelial cells and to a small extent by nonmalignant cells. The tetrac (tetraiodothyroacetic acid) of NDAT is covalently bound to a poly(lactic-co-glycolic acid) nanoparticle that encapsulates anticancer drugs. We report NDAT delivery efficiency of cisplatin to agent-susceptible urinary bladder cancer xenografts. MATERIALS & METHODS: Cisplatin-loaded NDAT (NDAT-cisplatin) was administered to xenograft-bearing nude mice...
January 19, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28101800/is-the-genetic-background-of-co-stimulatory-cd28-ctla-4-pathway-the-risk-factor-for-prostate-cancer
#2
Lidia Karabon, K Tupikowski, A Tomkiewicz, A Partyka, E Pawlak-Adamska, A Wojciechowski, A Kolodziej, J Dembowski, R Zdrojowy, I Frydecka
The impairment of immunological surveillance caused by aberrant T cell activation can lead to an inadequate anti-tumor response. Therefore, deregulation in co-stimulatory pathway might be associated with cancer susceptibility. Here we undertook a prospective study to investigate whether genetic variations in gene encoding molecule CD28 and CTLA-4 playing pivotal role in regulating adoptive immune response can influence susceptibility to prostate cancer. Single nucleotide polymorphisms (SNPs) in CTLA-4 and CD28 genes were genotyped in 301 prostate cancer (PCa) patients and 301 controls...
January 18, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28099948/mdm4-genetic-variants-and-risk-of-gastric-cancer-in-an-eastern-chinese-population
#3
Meng-Yun Wang, Ming Jia, Jing He, Fei Zhou, Li-Xin Qiu, Meng-Hong Sun, Ya-Jun Yang, Jiu-Cun Wang, Li Jin, Ya-Nong Wang, Qing-Yi Wei
MDM4 is a p53-interacting protein and plays an important role in carcinogenesis. In this study of 1,077 gastric cancer (GCa) cases and 1,173 matched cancer-free controls, we investigated associations between three tagging single nucleotide polymorphisms (SNPs) (rs11801299 G>A, rs1380576 C>G and rs10900598 G>T) in MDM4 and gastric cancer risk in an Eastern Chinese Population. In logistic regression analysis, a significantly decreased GCa risk was associated with the rs1380576 GG variant genotype (adjusted odds ratio [OR] =0...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098224/association-of-genome-wide-association-study-gwas-identified-snps-and-risk-of-breast-cancer-in-an-indian-population
#4
Rajini Nagrani, Sharayu Mhatre, Preetha Rajaraman, Nilanjan Chatterjee, Mohammad R Akbari, Paolo Boffetta, Paul Brennan, Rajendra Badwe, Sudeep Gupta, Rajesh Dikshit
To date, no studies have investigated the association of the GWAS-identified SNPs with BC risk in Indian population. We investigated the association of 30 previously reported and replicated BC susceptibility SNPs in 1,204 cases and 1,212 controls from a hospital based case-control study conducted at the Tata Memorial Hospital, Mumbai. As a measure of total susceptibility burden, the polygenic risk score (PRS) for each individual was defined by the weighted sum of genotypes from 21 independent SNPs with weights derived from previously published estimates of association odds-ratios...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098215/epigenetic-modifications-at-dmrs-of-placental-genes-are-subjected-to-variations-in-normal-gestation-pathological-conditions-and-folate-supplementation
#5
Beenish Rahat, Aatish Mahajan, Rashmi Bagga, Abid Hamid, Jyotdeep Kaur
Invasive placentation and cancer development shares many similar molecular and epigenetic pathways. Paternally expressed, growth promoting genes (SNRPN, PEG10 and MEST) which are known to play crucial role in tumorogenesis, are not well studied during placentation. This study reports for the first time of the impact of gestational-age, pathological conditions and folic acid supplementation on dynamic nature of DNA and histone methylation present at their differentially methylated regions (DMRs). Here, we reported the association between low DNA methylation/H3K27me3 and higher expression of SNRPN, PEG10 and MEST in highly proliferating normal early gestational placenta...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097051/ctla-4-polymorphisms-associate-with-breast-cancer-susceptibility-in-asians-a-meta-analysis
#6
Zhiming Dai, Tian Tian, Meng Wang, Xinghan Liu, Shuai Lin, Pengtao Yang, Kang Liu, Yi Zheng, Peng Xu, Meng Liu, Xuewen Yang, Zhijun Dai
Previous studies have investigated the association between cytotoxic T-lymphocyte antigen-4 (CTLA-4) polymorphisms and breast cancer susceptibility, but the results remained inconsistent. Therefore, we evaluated the relationship between four common CTLA-4 polymorphisms and breast cancer risk by a meta-analysis, aiming to derive a comprehensive and precise conclusion. We searched EMBASE, Pubmed, Web of Science, CNKI, and Wanfang databases until July 18th, 2016. Finally, ten eligible studies involving 4,544 breast cancer patients and 4,515 cancer-free controls were included; all these studies were from Asia...
2017: PeerJ
https://www.readbyqxmd.com/read/28096648/identification-of-genetic-and-epigenetic-variants-associated-with-breast-cancer-prognosis-by-integrative-bioinformatics-analysis
#7
Arunima Shilpi, Yingtao Bi, Segun Jung, Samir K Patra, Ramana V Davuluri
INTRODUCTION: Breast cancer being a multifaceted disease constitutes a wide spectrum of histological and molecular variability in tumors. However, the task for the identification of these variances is complicated by the interplay between inherited genetic and epigenetic aberrations. Therefore, this study provides an extrapolate outlook to the sinister partnership between DNA methylation and single-nucleotide polymorphisms (SNPs) in relevance to the identification of prognostic markers in breast cancer...
2017: Cancer Informatics
https://www.readbyqxmd.com/read/28095119/fecal-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-strains-is-associated-with-worse-outcome-in-patients-hospitalized-in-the-pediatric-oncology-unit-of-beni-messous-hospital-in-algiers-algeria
#8
Chafiaa Medboua-Benbalagh, Abdelaziz Touati, Rachida Kermas, Alima Gharout-Sait, Lucien Brasme, Halima Mezhoud, Djamila Touati, Thomas Guillard, Christophe de Champs
OBJECTIVES: The current study aimed to investigate extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) fecal carriage in children with different cancers admitted in the pediatric oncology unit of Beni-Messous Hospital (Algiers, Algeria). MATERIALS AND METHODS: Rectal swabs from children with cancer were sampled from February 2012 to May 2013 within 48 hours following their admission. After species identification and detection of ESBL production by double-disk synergy test (DD test), antibiotic susceptibility was determined by the standard disk diffusion method...
January 17, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28095028/time-matters-framing-antismoking-messages-using-current-smokers-preexisting-perceptions-of-temporal-distance-to-smoking-related-health-risks
#9
Kyongseok Kim, Hyang-Sook Kim
This study examined the effects of temporal framing used in messages about the future likelihood of developing smoking-related diseases on intention to quit smoking. Based on construal level theory (CLT), a causal model delineating the relationships among four variables-perceived temporal distance, personal relevance, perceived susceptibility, and behavioral intention-was proposed. The model was validated by an online experiment with a sample of 222 current smokers, revealing the effects of perceived temporal distance on behavioral intention via personal relevance and perceived susceptibility...
January 17, 2017: Health Communication
https://www.readbyqxmd.com/read/28093676/aryl-hydrocarbon-receptor-signaling-involved-in-the-invasiveness-of-lncap-cells
#10
Hisamitsu Ide, Yan Lu, Jingsong Yu, Takahiro Noguchi, Mayuko Kanayama, Satoru Muto, Raizo Yamaguchi, Suguru Kawato, Shigeo Horie
There is now mounting evidence that the aryl hydrocarbon receptor (AhR) plays an important role in physiologic responses such as development, cell cycle regulation, immune function and also malignant transformation in various tissues. The strong nuclear AhR expression is observed in the invasive phenotype, and an elevated nuclear AhR expression is associated with a poor prognosis of human prostate cancer. On the other hand, there are conflicting results that the AhR deficiency results in increased susceptibility to prostate tumors in mouse model...
January 16, 2017: Human Cell
https://www.readbyqxmd.com/read/28092948/oral-cell-dna-adducts-as-potential-biomarkers-for-lung-cancer-susceptibility-in-cigarette-smokers
#11
Stephen S Hecht
This perspective considers the use of oral cell DNA adducts, together with exposure and genetic information, to potentially identify those cigarette smokers at highest risk for lung cancer, so that appropriate preventive measures could be initiated at a relatively young age before too much damage has been done. There are now well established and validated analytical methods for the quantitation of urinary and serum metabolites of tobacco smoke toxicants and carcinogens. These metabolites provide a profile of exposure and in some cases lung cancer risk, but they do not yield information on the critical DNA damage parameter that leads to mutations in cancer growth control genes such as KRAS and TP53...
January 17, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28089639/a-systematic-review-of-the-association-between-fatigue-and-genetic-polymorphisms
#12
REVIEW
Tengteng Wang, Jie Yin, Andrew H Miller, Canhua Xiao
Fatigue is one of the most common and distressing symptoms, leading to markedly decreased quality of life among a large subset of patients with a variety of disorders. Susceptibility to fatigue may be influenced by genetic factors including single nucleotide polymorphisms (SNPs), especially in the regulatory regions, of relevant genes. To further investigate the association of SNPs with fatigue in various patient populations, a systematic search was conducted on Pubmed, CINAHL, PsycINFO, and Sociological Abstracts Database for fatigue related-terms in combination with polymorphisms or genetic variation-related terms...
January 12, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28081215/genome-wide-association-studies-of-multiple-keratinocyte-cancers
#13
Luba M Pardo, Wen-Qing Li, Shih-Jen Hwang, Joris A C Verkouteren, Albert Hofman, André G Uitterlinden, Peter Kraft, Constance Turman, Jiali Han, Eunyoung Cho, Joanne M Murabito, Daniel Levy, Abrar A Qureshi, Tamar Nijsten
There is strong evidence for a role of environmental risk factors involved in susceptibility to develop multiple keratinocyte cancers (mKCs), but whether genes are also involved in mKCs susceptibility has not been thoroughly investigated. We investigated whether single nucleotide polymorphisms (SNPs) are associated with susceptibility for mKCs. A genome-wide association study (GWAS) of 1,666 cases with mKCs and 1,950 cases with single KC (sKCs; controls) from Harvard cohorts (the Nurses' Health Study [NHS], NHS II, and the Health Professionals Follow-Up Study) and the Framingham Heart Study was carried-out using over 8 million SNPs (stage-1)...
2017: PloS One
https://www.readbyqxmd.com/read/28080988/medical-mycology-and-fungal-immunology-new-research-perspectives-addressing-a-major-world-health-challenge
#14
REVIEW
Neil A R Gow, Mihai G Netea
Fungi cause more than a billion skin infections, more than 100 million mucosal infections, 10 million serious allergies and more than a million deaths each year. Global mortality owing to fungal infections is greater than for malaria and breast cancer and is equivalent to that owing to tuberculosis (TB) and HIV. These statistics evidence fungal infections as a major threat to human health and a major burden to healthcare budgets worldwide. Those patients who are at greatest risk of life-threatening fungal infections include those who have weakened immunity or have suffered trauma or other predisposing infections such as HIV...
December 5, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28079009/emerging-roles-of-calreticulin-in-cancer-implications-for-therapy
#15
Kavya Venkateswaran, Amit Verma, Anant Narayan Bhatt, Anju Shrivastava, Kailash Manda, Hanumantharao G Raj, Ashok Prasad, Christophe Len, Virinder S Parmar, Bilikere Dwarakanath
Calreticulin (CRT), initially identified as a ubiquitous calcium-binding protein in the endoplasmic reticulum, has emerged as a multifunctional protein with roles in calcium homeostasis, molecular chaperoning and cell adhesion. Emerging evidence suggests its involvement in tumorigenesis facilitating proliferation, migration, and adhesion. CRT translocated to the cell surface (ecto-CRT) serves as a phagocytic signal for immunogenic cell death (ICD) mediated through dendritic cells (DCs) and cytotoxic T-cell activation thereby making tumors susceptible to immunotherapy-based anti-cancer strategies...
January 11, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28079007/novel-therapies-targeting-cardioprotection-and-regeneration
#16
Valeria Garrido, Evelyn Mendoza-Torres, Jaime A Riquelme, Ariel Díaz, Marcela Pizarro, Mario Bustamante, Myra N Chavez, María Paz Ocaranza, Rosemarie Mellado, Ramon Corbalan, Miguel L Allende, Sergio Lavandero
Cardiovascular disease is the leading cause of death worldwide. The heart is susceptible to pathologies that impact the myocardium directly, such myocardial infarction and consequent heart failure, as well as conditions with indirect cardiac effects, such cancer treatment-related cardiotoxicity. As the contractile cells of the heart, cardiomyocytes are essential for normal cardiac function. Various stress stimuli may result in transient damage or cell death in cardiomyocytes through apoptosis, necrosis or maladaptive autophagy...
January 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28079002/neurotoxicity-associated-with-platinum-based-anti-cancer-agents-what-are-the-implications-of-copper-transporters
#17
Vanesa Stojanovska, Rachel McQuade, Emma Rybalka, Kulmira Nurgali
Platinum-based anti-cancer agents, which include cisplatin, carboplatin and oxaliplatin, are an important class of drugs used in clinical setting to treat a variety of cancers. The cytotoxic efficacy of these drugs is mediated by the formation of interstrand and intrastrand crosslinks, or platinum adducts on nuclear DNA. There is also evidence demonstrating that mitochondrial DNA is susceptible to platinum-adduct damage in dorsal root ganglia neurons. Although all platinum-based agents form similar DNA adducts, they are quite different in terms of activation, systemic toxicity and tolerance...
January 11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28078645/parp-inhibitors-in-reproductive-system-cancers-current-use-and-developments
#18
REVIEW
Geraldine O'Sullivan Coyne, Alice P Chen, Robert Meehan, James H Doroshow
The repair of DNA damage is a critical cellular process governed by multiple biochemical pathways that are often found to be defective in cancer cells. The poly(ADP-ribose) polymerase (PARP) family of proteins controls response to single-strand DNA breaks by detecting these damaged sites and recruiting the proper factors for repair. Blocking this pathway forces cells to utilize complementary mechanisms to repair DNA damage. While PARP inhibition may not, in itself, be sufficient to cause tumor cell death, inhibition of DNA repair with PARP inhibitors is an effective cytotoxic strategy when it is used in patients who carry other defective DNA-repair mechanisms, such as mutations in the genes BRCA 1 and 2...
January 11, 2017: Drugs
https://www.readbyqxmd.com/read/28078498/perinatal-exposure-to-bisphenol-a-or-diethylstilbestrol-increases-the-susceptibility-to-develop-mammary-gland-lesions-after-estrogen-replacement-therapy-in-middle-aged-rats
#19
Ayelen L Gomez, Melisa B Delconte, Gabriela A Altamirano, Lucia Vigezzi, Veronica L Bosquiazzo, Luís F Barbisan, Jorge G Ramos, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
The development of the mammary gland is a hormone-regulated event. Several factors can dysregulate its growth and make the gland more susceptible to cellular transformation. Among these factors, perinatal exposure to xenoestrogens and hormone replacement therapy has been associated with increased risk of developing breast cancer. Here, we assessed the effects induced by estrogen replacement therapy (ERT) in ovariectomized (OVX) middle-aged rats and whether perinatal exposure to diethylstilbestrol (DES) or bisphenol A (BPA) modified these effects in the mammary gland...
January 11, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28078123/diminished-expression-of-mgmt-rassf1a-genes-in-gastric-cancer-in-ethnic-population-of-kashmir
#20
Arif Akbar Bhat, Hilal Ahmad Wani, Ajaz Ahmad Waza, Rawoof Ahmad Malik, Akbar Masood, Showkat Jeelani, Showkat Kadla, Sabhiya Majid
BACKGROUND: Cancer initiation and progression are accompanied by profound changes in DNA. DNA methylation that was the first epigenetic alterations identified in cancer. DNA hypermethylation at promoter sites is closely associated with down regulation of protein and as major participant in the development and progression of series of human tumors. Therefore we hypothesized that promoter hypermethylation of RASSF1A & MGMT gene could influence susceptibility to gastric cancer (GC) as well, and we conducted this study to test the hypothesis in Kashmiri population...
December 2016: Journal of Gastrointestinal Oncology
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