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https://www.readbyqxmd.com/read/28446801/genetic-susceptibility-to-salt-sensitive-hypertension-in-a-han-chinese-population-a-validation-study-of-candidate-genes
#1
Zheng Liu, Han Qi, Bin Liu, Kuo Liu, Jingjing Wu, Han Cao, Jie Zhang, Yuxiang Yan, Yan He, Ling Zhang
Salt-sensitive hypertension is a complex disease associated with genetic factors. This study aimed to identify the association between 29 candidate single-nucleotide polymorphisms and salt-sensitive hypertension in a Han Chinese population. Sixty-three participants with salt-sensitive hypertension and 279 controls with salt-resistant hypertension were recruited. A modified Sullivan's acute oral saline load and diuresis shrinkage test was used to detect blood pressure salt sensitivity. Lifestyle risk factors were obtained via a questionnaire...
April 27, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28444881/a-three-lncrna-expression-signature-associated-with-the-prognosis-of-gastric-cancer-patients
#2
Peng Song, Bo Jiang, Zhijian Liu, Jie Ding, Song Liu, Wenxian Guan
Long noncoding RNAs (lncRNAs) have emerged as essential players in gene regulation. An ever-increasing number of lncRNAs has been found to be associated with the biogenesis and prognosis of gastric cancer (GC). We aimed to develop an lncRNA signature with prognostic value for survival outcomes of GC. Using an lncRNA mining approach, we analyzed the lncRNA expression profiles of 492 GC patients from the Gene Expression Omnibus (GEO), which consisted of the GSE62254 set (N = 300) and the GSE15459 set (N = 192)...
April 26, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28443118/the-absence-of-the-arabidopsis-chaperone-complex-caf-1-produces-mitotic-chromosome-abnormalities-and-changes-in-the-expression-profiles-of-genes-involved-in-dna-repair
#3
Javier Varas, Juan L Santos, Mónica Pradillo
Chromatin Assembly Factor 1 (CAF-1) is an evolutionary conserved heterotrimeric chaperone complex that facilitates the incorporation of histones H3 and H4 onto newly synthesized DNA. We demonstrate here that the mutant deficient for the large subunit of the complex, fas1-4, and in minor extent, the mutant deficient for the middle subunit, fas2-1, display chromosome abnormalities throughout Arabidopsis mitosis. Among them, we observed multicentromeric chromosomes at metaphase, and chromatid bridges and acentric fragments at anaphase-telophase...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28439991/melatonin-a-pleiotropic-molecule-that-modulates-dna-damage-response-and-repair-pathways
#4
REVIEW
Maryam Majidinia, Alireza Sadeghpour, Saeed Mehrzadi, Russel J Reiter, Nasrin Khatami, Bahman Yousefi
DNA repair is responsible for maintaining the integrity of the genome. Perturbations in the DNA repair pathways have been identified in several human cancers. Thus, compounds targeting DNA damage response (DDR) hold great promise in cancer therapy. A great deal of effort, in pursuit of new anticancer drugs, has been devoted to understanding the basic mechanisms and functions of the cellular DNA repair machinery. Melatonin, a widely-produced indoleamine in all organisms is associated with a reduced risk of cancer and has multiple regulatory roles on the different aspects of the DDR and DNA repair...
April 25, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28439082/expression-of-nestin-associates-with-brca1-mutations-a-basal-like-phenotype-and-aggressive-breast-cancer
#5
Kristi Krüger, Elisabeth Wik, Gøril Knutsvik, Hawa Nalwoga, Tor A Klingen, Jarle B Arnes, Ying Chen, Monica Mannelqvist, Konstantina Dimitrakopoulou, Ingunn M Stefansson, Even Birkeland, Turid Aas, Nicholas P Tobin, Inge Jonassen, Jonas Bergh, William D Foulkes, Lars A Akslen
We here examined whether Nestin, by protein and mRNA levels, could be a predictor of BRCA1 related breast cancer, a basal-like phenotype, and aggressive tumours. Immunohistochemical staining of Nestin was done in independent breast cancer hospital cohorts (Series I-V, total 1257 cases). Also, TCGA proteomic data (n = 103), mRNA microarray data from TCGA (n = 520), METABRIC (n = 1992), and 6 open access breast cancer datasets (n = 1908) were analysed. Patients with Nestin protein expression in tumour cells more often had BRCA1 germline mutations (OR 8...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28436098/lecrk-v-an-l-type-lectin-receptor-kinase-in-haynaldia-villosa-plays-positive-role-in-resistance-to-wheat-powdery-mildew
#6
Zongkuan Wang, Jiangyue Cheng, Anqi Fan, Jia Zhao, Zhongyu Yu, Yingbo Li, Heng Zhang, Jin Xiao, Faheem Mohammad, Haiyan Wang, Aizhong Cao, Liping Xing, Xiue Wang
Plant sense potential microbial pathogen by using pattern recognition receptors (PRRs) to recognize pathogen associated molecular patterns (PAMPs). The Lectin receptor like kinase genes (LecRKs) are involved in various cellular processes mediated by signal transduction pathways. In the present study, an L-type lectin receptor kinase gene LecRK-V was cloned from Haynaldia villosa, a diploid wheat relative which is highly resistant to powdery mildew. The expression of LecRK-V was rapidly up-regulated by Bgt inoculation and chitin treatment...
April 24, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28431926/multiple-repair-pathways-mediate-cellular-tolerance-to-resveratrol-induced-dna-damage
#7
Ying Liu, Xiaohua Wu, Xiaoqing Hu, Ziyuan Chen, Hao Liu, Shunichi Takeda, Yong Qing
Resveratrol (RSV) has been reported to exert health benefits for the prevention and treatment of many diseases, including cancer. The anticancer mechanisms of RSV seem to be complex and may be associated with genotoxic potential. To better understand the genotoxic mechanisms, we used wild-type (WT) and a panel of isogenic DNA-repair deficient DT40 cell lines to identify the DNA damage effects and molecular mechanisms of cellular tolerance to RSV. Our results showed that RSV induced significant formation of γ-H2AX foci and chromosome aberrations (CAs) in WT cells, suggesting direct DNA damage effects...
April 18, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28431407/prognositic-value-of-cd73-adenosinergic-pathway-in-solid-tumor-a-meta-analysis-and-systematic-review
#8
Rong Wang, Yingying Zhang, Xia Lin, Yalin Gao, Ying Zhu
CD73 is a glycosylphosphatidylinositol (GPI) anchored cell surface protein that is encoded by NT5E gene, plays multiple roles in tumor processes. Previous studies have presented a potential value of CD73 served as a detectable biomarker for prognosis of several solid tumors, but the results were more controversially. A comprehensive meta-analysis was conducted to precisely evaluate the prognostic role of CD73 in solid tumors. The included studies were searched in PubMed, Web of Science and EBSCO from Jan 1990 to Jan 2016...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431013/dna-double-strand-break-repair-in-penaeus-monodon-is-predominantly-dependent-on-homologous-recombination
#9
Shikha Srivastava, Sumedha Dahal, Sharanya J Naidu, Deepika Anand, Vidya Gopalakrishnan, Rajendran Kooloth Valappil, Sathees C Raghavan
DNA double-strand breaks (DSBs) are mostly repaired by nonhomologous end joining (NHEJ) and homologous recombination (HR) in higher eukaryotes. In contrast, HR-mediated DSB repair is the major double-strand break repair pathway in lower order organisms such as bacteria and yeast. Penaeus monodon, commonly known as black tiger shrimp, is one of the economically important crustaceans facing large-scale mortality due to exposure to infectious diseases. The animals can also get exposed to chemical mutagens under the culture conditions as well as in wild...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28426704/population-effect-model-identifies-gene-expression-predictors-of-survival-outcomes-in-lung-adenocarcinoma-for-both-caucasian-and-asian-patients
#10
Guoshuai Cai, Feifei Xiao, Chao Cheng, Yafang Li, Christopher I Amos, Michael L Whitfield
BACKGROUND: We analyzed and integrated transcriptome data from two large studies of lung adenocarcinomas on distinct populations. Our goal was to investigate the variable gene expression alterations between paired tumor-normal tissues and prospectively identify those alterations that can reliably predict lung disease related outcomes across populations. METHODS: We developed a mixed model that combined the paired tumor-normal RNA-seq from two populations. Alterations in gene expression common to both populations were detected and validated in two independent DNA microarray datasets...
2017: PloS One
https://www.readbyqxmd.com/read/28425306/therapeutic-targeting-and-patient-selection-for-cancers-with-homologous-recombination-defects
#11
Francien Talens, Mathilde Jalving, Jourik A Gietema, Marcel A T M van Vugt
DNA double-strand breaks (DSBs) are toxic DNA lesions that can be repaired by non-homologous end-joining (NHEJ) or homologous recombination (HR). Mutations in HR genes elicit a predisposition to cancer; yet, they also result in increased sensitivity to certain DNA damaging agents and poly (ADP-ribose) polymerase (PARP) inhibitors. To optimally implement PARP inhibitor treatment, it is important that patients with HR-deficient tumors are adequately selected. Areas covered: Herein, the authors describe the HR pathway mechanistically and review the treatment of HR-deficient cancers, with a specific focus on PARP inhibition for BRCA1/2-mutated breast and ovarian cancer...
April 20, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28423632/the-genetic-variants-in-the-pten-pi3k-akt-pathway-predict-susceptibility-and-ce-a-f-chemotherapy-response-to-breast-cancer-and-clinical-outcomes
#12
Xiang Li, Ruishan Zhang, Zhuangkai Liu, Shuang Li, Hong Xu
The PI3K/PTEN/AKT pathway play a critical role in balancing cell growth and death. Epidemiologic studies suggested that mutations of the PI3K/PTEN/AKT pathway genes are associated with cancer risk, yet no data are available for PTEN rs701848, PIK3CA rs2699887, and AKT1 rs2494752 polymorphism and breast cancer(BC) risk. A case-control study was performed in 920 BC patients and 908 healthy controls using the TaqMan assay method. Overall, individuals with PTEN rs701848 TC, CC and TC/CC genotypes showed significant increased BC risk (P=0...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423344/prolonged-dark-period-modulates-the-oxidative-burst-and-enzymatic-antioxidant-systems-in-the-leaves-of-salicylic-acid-treated-tomato
#13
Péter Poór, Zoltán Takács, Krisztina Bela, Zalán Czékus, Gabriella Szalai, Irma Tari
Salicylic acid (SA) is an important plant growth regulator playing a role in the hypersensitive reaction (HR) and the induction of systemic acquired resistance. Since the SA-mediated signalling pathways and the formation of reactive oxygen species (ROS) are light-dependent, the time- and concentration-specific induction of oxidative stress was investigated in leaves of tomato plants kept under light and dark conditions after treatments with 0.1mM and 1mM SA. The application of exogenous SA induced early superoxide- and H2O2 production in the leaves, which was different in the absence or presence of light and showed time- and concentration-dependent changes...
March 23, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28420621/association-between-polymorphisms-of-autophagy-pathway-and-responses-in-non-small-cell-lung-cancer-patients-treated-with-platinum-based-chemotherapy
#14
Wang Shiming, Song Xiao, Zhao Xueying, Chen Hongyan, Wang Jiucun, Wu Junjie, Gao Zhiqiang, Qian Ji, Bai Chunxue, Li Qiang, Han Baohui, Lu Daru
Platinum-based chemotherapy is an important treatment for non-small cell lung cancer. However, the effectiveness of the treatment varies among the patients. We investigated the association between DNA polymorphisms of the autophagy pathway and responses of such treatment among 1004 Chinese patients. Ninety-nine SNPs located on 13 genes of the autophagy pathway were genotyped and assessed for their association with clinical benefit, progression-free survival (PFS) and overall survival (OS). The results showed that rs7953348 (G>A) (P=0...
March 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28419554/the-major-mir-31-target-genes-stk40-and-lats2-and-their-implications-in-the-regulation-of-keratinocyte-growth-and-hair-differentiation
#15
Liming Luan, Jianyun Shi, Zhengquan Yu, Thomas Andl
Emerging evidence indicates that even subtle changes in the expression of key genes of signaling pathways can have profound effects. MicroRNAs (miRNAs) are masters of subtleness and generally have only mild effects on their target genes. The microRNA miR-31 is one of the major microRNAs in many cutaneous conditions associated with activated keratinocytes such as the hyperproliferative diseases psoriasis, non-melanoma skin cancer, and hair follicle growth. miR-31 is a marker of the hair growth phase, and in our miR-31 transgenic mouse model it impairs the function of keratinocytes, subsequently leading to aberrant proliferation, apoptosis and differentiation that result in altered hair growth, while loss of miR-31 leads to increased hair growth...
April 17, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28418813/radiation-induced-deletions-in-mouse-spermatogonia-are-usually-large-over-200-kb-and-contain-little-sequence-similarity-at-the-junctions
#16
Mieko Kodaira, Jun-Ichi Asakawa, Nori Nakamura
Ionizing radiation can induce mutations, and the majority of radiation-induced mutations in mammalian cells are deletions. The most critical types of radiation-induced DNA damage are DNA double-strand breaks, and these breaks are repaired by either the homologous recombination (HR) pathway or the non-homologous end joining (NHEJ) pathway. The HR pathway is not as mutagenic as the NHEJ pathway, and it is expected that radiation-induced deletions would usually have little sequence similarity around the deletion junction points...
April 18, 2017: Radiation Research
https://www.readbyqxmd.com/read/28418661/systematic-dissociation-pathway-searches-guided-by-principal-component-modes
#17
Zhiye Tang, Chia-En A Chang
We introduce a novel method, Pathway Search guided by Internal Motions (PSIM), that efficiently finds molecular dissociation pathways of a ligand-receptor system with guidance from principal component (PC) modes obtained from molecular dynamics (MD) simulations. Modeling ligand-receptor dissociation pathways can provide insights into molecular recognition and has practical applications, including understanding kinetic mechanisms and barriers to binding/unbinding as well as design of drugs with desired kinetic properties...
April 18, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28416776/clinical-value-of-mir-101-3p-and-biological-analysis-of-its-prospective-targets-in-breast-cancer-a-study-based-on-the-cancer-genome-atlas-tcga-and-bioinformatics
#18
Chun-Yao Li, Dan-Dan Xiong, Chun-Qin Huang, Rong-Quan He, Hai-Wei Liang, Deng-Hua Pan, Han-Lin Wang, Yi-Wen Wang, Hua-Wei Zhu, Gang Chen
BACKGROUND MiR-101-3p can promote apoptosis and inhibit proliferation, invasion, and metastasis in breast cancer (BC) cells. However, its mechanisms in BC are not fully understood. Therefore, a comprehensive analysis of the target genes, pathways, and networks of miR-101-3p in BC is necessary. MATERIAL AND METHODS The miR-101 profiles for 781 patients with BC from The Cancer Genome Atlas (TCGA) were analyzed. Gene expression profiling of GSE31397 with miR-101-3p transfected MCF-7 cells and scramble control cells was downloaded from Gene Expression Omnibus (GEO), and the differentially expressed genes (DEGs) were identified...
April 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28416743/the-urokinase-plasminogen-activation-system-in-gastroesophageal-cancer-a-systematic-review-and-meta-analysis
#19
Daniel Brungs, Julia Chen, Morteza Aghmesheh, Kara L Vine, Therese M Becker, Martin G Carolan, Marie Ranson
BACKGROUND: The urokinase plasminogen activation (uPA) system is a crucial pathway for tumour invasion and establishment of metastasis. Although there is good evidence that uPA system expression is a clinically relevant biomarker in some solid tumours, its role in gastroesophageal cancer is uncertain. RESULTS: We identified 22 studies encompassing 1966 patients which fulfilled the inclusion criteria. uPA, uPAR, or PAI-1 expression is significantly associated with high risk clinicopathological features...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412778/parp-inhibitors-the-cornerstone-of-dna-repair-targeted-therapies
#20
REVIEW
Jaydira Del Rivero, Elise C Kohn
The activity and therapeutic licensing of poly(ADP-ribose) polymerase (PARP) inhibitors is the culmination of 50 years of research. However, the biology, mechanisms of action, adequate treatment combinations, and targeted populations for these agents need to be explored further. PARP activity is essential for the repair of single-strand DNA breaks via the base excision repair pathway. This pathway is the default repair pathway in cells with deficient high-fidelity double-strand break homologous recombination (HR) repair, such as occurs with loss of BRCA1 or BRCA2 function...
April 15, 2017: Oncology (Williston Park, NY)
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