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https://www.readbyqxmd.com/read/28905228/genetic-susceptibility-in-childhood-acute-lymphoblastic-leukemia
#1
REVIEW
Angela Gutierrez-Camino, Idoia Martin-Guerrero, Africa García-Orad
Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy and a leading cause of death due to disease in children. The genetic basis of ALL susceptibility has been supported by its association with certain congenital disorders and, more recently, by several genome-wide association studies (GWAS). These GWAS identified common variants in ARID5B, IKZF1, CEBPE, CDKN2A, PIP4K2A, LHPP and ELK3 influencing ALL risk. However, the risk variants of these SNPs were not validated in all populations, suggesting that some of the loci could be population specific...
September 13, 2017: Medical Oncology
https://www.readbyqxmd.com/read/28858301/activation-of-aldehyde-dehydrogenase-2-slows-down-the-progression-of-atherosclerosis-via-attenuation-of-er-stress-and-apoptosis-in-smooth-muscle-cells
#2
Mei-Yan Yang, Ya-Bin Wang, Bo Han, Bo Yang, Yu-Wei Qiang, Yan Zhang, Zhao Wang, Xu Huang, Jie Liu, Yun-Dai Chen, Jun Ren, Feng Cao, Yong Xu
Aldehyde dehydrogenase 2 (ALDH2) is a key mitochondrial enzyme in the metabolism of aldehydes and may have beneficial cardiovascular effects for conditions such as cardiac hypertrophy, heart failure, myocardial I/R injury, reperfusion, arrhythmia, coronary heart disease and atherosclerosis. In this study we investigated the role of ALDH2 in the progression of atherosclerosis and the underlying mechanisms, with a focus on endoplasmic reticulum (ER) stress. A clinical study was performed in 248 patients with coronary heart disease...
August 31, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28853918/human-bronchial-epithelial-cell-derived-factors-from-severe-asthmatic-subjects-stimulate-eosinophil-differentiation
#3
Brittany M A Salter, Steven G Smith, Manali Mukherjee, Sophie Plante, Sakktee Krisna, Graeme Nusca, John Paul Oliveria, Anam Irshad, Gail M Gauvreau, Jamila Chakir, Parameswaran Nair, Roma Sehmi
RATIONALE: Activated bronchial epithelial cells release alarmins, including thymic stromal lymphopoietin (TSLP) that drive type 2 inflammatory responses. We hypothesize that bronchial epithelial-derived factors enhance in situ eosinophil differentiation and maturation from myeloid precursors, a process that is driven by an IL-5 rich micro-environment within asthma airways. METHODS: To assess the eosinophilopoietic potential of epithelial-derived factors, eosinophil/basophil colony forming units (Eo/B-CFU) were enumerated in 14-day methylcellulose cultures of blood-derived mononuclear cells (NAMNCs) incubated with bronchial epithelial cell supernatants (BECSN) from healthy non-atopic controls (NC; n = 8), mild atopic asthmatics (MA; n = 9) and severe asthmatics (SA; n = 5)...
August 30, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28768142/contributions-of-ikzf1-ddc-cdkn2a-cebpe-and-lmo1-gene-polymorphisms-to-acute-lymphoblastic-leukemia-in-a-yemeni-population
#4
Boshra Al-Absi, Muhammad F M Razif, Suzita M Noor, Riyadh Saif-Ali, Mohammed Aqlan, Sameer D Salem, Radwan H Ahmed, Sekaran Muniandy
BACKGROUND: Genome-wide and candidate gene association studies have previously revealed links between a predisposition to acute lymphoblastic leukemia (ALL) and genetic polymorphisms in the following genes: IKZF1 (7p12.2; ID: 10320), DDC (7p12.2; ID: 1644), CDKN2A (9p21.3; ID: 1029), CEBPE (14q11.2; ID: 1053), and LMO1 (11p15; ID: 4004). In this study, we aimed to conduct an investigation into the possible association between polymorphisms in these genes and ALL within a sample of Yemeni children of Arab-Asian descent...
October 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28756227/low-dose-g-csf-improves-fat-graft-retention-by-mobilizing-endogenous-stem-cells-and-inducing-angiogenesis-whereas-high-dose-g-csf-inhibits-adipogenesis-with-prolonged-inflammation-and-severe-fibrosis
#5
Junrong Cai, Bin Li, Kaiyang Liu, Jingwei Feng, Kai Gao, Feng Lu
BACKGROUND: Hematopoietic stem cells (HSCs) promote fat graft survival by modulating its revascularization. The authors hypothesize that mobilization of HSCs by G-CSF will improve fat graft survival. Hence, we evaluated the effect of different doses of G-CSF on fat grafting. METHODS: Male 8-week-old C57 mice received high-dose G-CSF (100 μg/kg), low-dose G-CSF (10 μg/kg), and PBS (control) intraperitoneally for 7 consecutive days right after autologous fat grafting...
September 23, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28751478/novel-gene-and-network-associations-found-for-acute-lymphoblastic-leukemia-using-case-control-and-family-based-studies-in-multiethnic-populations
#6
Priyanka Nakka, Natalie P Archer, Heng Xu, Philip J Lupo, Benjamin J Raphael, Jun J Yang, Sohini Ramachandran
Background: Acute lymphoblastic leukemia (ALL) is the most common childhood cancer, suggesting that germline variants influence ALL risk. Although multiple genome-wide association (GWA) studies have identified variants predisposing children to ALL, it remains unclear whether genetic heterogeneity affects ALL susceptibility and how interactions within and among genes containing ALL-associated variants influence ALL risk.Methods: Here, we jointly analyzed two published datasets of case-control GWA summary statistics along with germline data from ALL case-parent trios...
October 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28704952/the-inhibitory-effect-of-tartary-buckwheat-extracts-on-adipogenesis-and-inflammatory-response
#7
Mak-Soon Lee, Yoonjin Shin, Sunyoon Jung, Seog-Young Kim, Young-Hee Jo, Chong-Tai Kim, Min-Kyu Yun, Sung-Jin Lee, Johann Sohn, Heui-Jong Yu, Yangha Kim
Tartary buckwheat (Fagopyrum tataricum) has been established globally as a nutritionally important food item, particularly owing to high levels of bioactive compounds such as rutin. This study investigated the effect of tartary buckwheat extracts (TBEs) on adipogenesis and inflammatory response in 3T3-L1 cells. TBEs inhibited lipid accumulation, triglyceride content, and glycerol-3-phosphate dehydrogenase (GPDH) activity during adipocyte differentiation of 3T3 L1 cells. The mRNA levels of genes involved in fatty acid synthesis, such as peroxisome proliferator-activated receptor-γ (PPAR-γ), CCAAT/enhancer binding protein-α (CEBP-α), adipocyte protein 2 (aP2), acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), and stearoylcoenzyme A desaturase-1 (SCD-1), were suppressed by TBEs...
July 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28673818/distinct-cis-elements-in-the-3-utr-of-the-c-elegans-cebp-1-mrna-mediate-its-regulation-in-neuronal-development
#8
Panid Sharifnia, Kyung Won Kim, Zilu Wu, Yishi Jin
The 3' untranslated regions (3' UTRs) of mRNAs mediate post-transcriptional regulation of genes in many biological processes. Cis elements in 3' UTRs can interact with RNA-binding factors in sequence-specific or structure-dependent manners, enabling regulation of mRNA stability, translation, and localization. Caenorhabditis elegans CEBP-1 is a conserved transcription factor of the C/EBP family, and functions in diverse contexts, from neuronal development and axon regeneration to organismal growth. Previous studies revealed that the levels of cebp-1 mRNA in neurons depend on its 3' UTR and are also negatively regulated by the E3 ubiquitin ligase RPM-1...
September 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28671279/impairment-of-primary-cilia-contributes-to-visceral-adiposity-of-high-fat-diet-fed-mice
#9
Ni Qiu, Wei-Jin Fang, Hong-Sheng Li, Zhi-Min He, Zhou-Sheng Xiao, Yan Xiong
Deficiency of primary cilia formation by knockout kinesin family member 3A (Kif3a) in mature osteoblasts led to osteopenia and enhanced adipogenesis. Adipogenesis plays an important role in adipose tissue expansion by High-fat-diet (HFD) induced obesity. Whether primary cilia participate in high-fat-diet induced adiposity remains unclear. In this study, we found that the number and length of primary cilia and expression levels of KIF3A and intraflagellar transport 88 homolog (IFT88) mRNA and proteins reached peak on the day 3 of adipogenesis, followed by a decrease to reach low basal expression levels at day 9 when differentiated to lipid accumulating adipocytes in VAT-SVFs derived from lean mice...
July 3, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28662060/a-conserved-mitochondrial-surveillance-pathway-is-required-for-defense-against-pseudomonas-aeruginosa
#10
Elissa Tjahjono, Natalia V Kirienko
All living organisms exist in a precarious state of homeostasis that requires constant maintenance. A wide variety of stresses, including hypoxia, heat, and infection by pathogens perpetually threaten to imbalance this state. Organisms use a battery of defenses to mitigate damage and restore normal function. Previously, we described a Caenorhabditis elegans-Pseudomonas aeruginosa assay (Liquid Killing) in which toxicity to the host is dependent upon the secreted bacterial siderophore pyoverdine. Although pyoverdine is also indispensable for virulence in mammals, its cytological effects are unclear...
June 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28476190/arid5b-cebpe-and-pip4k2a-germline-genetic-polymorphisms-and-risk-of-childhood-acute-lymphoblastic-leukemia-in-mexican-patients-a%C3%A2-migiccl-study
#11
Vilma Carolina Bekker-Méndez, Juan Carlos Núñez-Enríquez, José Luis Torres Escalante, Enrique Alvarez-Olmos, Pablo Miguel González-Montalvoc, Elva Jiménez-Hernández, Aurora Medina Sansón, Yelda A Leal, María Teresa Ramos-Cervantes, Francisco Xavier Guerra-Castillo, Mónica Patricia Ortiz-Maganda, Janet Flores-Lujano, Maria Luisa Pérez-Saldivar, Martha Margarita Velazquez-Aviña, Victoria Bolea-Murga, José Refugio Torres-Nava, Raquel Amador-Sanchez, Karina Anastacia Solis-Labastida, Julian Rámirez-Bello, José Manuel Fragoso, Juan Manuel Mejía-Aranguré
BACKGROUND AND AIMS: Childhood acute lymphoblastic leukemia (ALL) is the leading cause of childhood cancer-related deaths worldwide. Multiples studies have shown that ALL seems to be originated by an interaction between environmental and genetic susceptibility factors. The ARID5B polymorphisms are among the most reproducible ALL associated-risk alleles in different populations. The aim of the present study was to examine the contribution of ARID5B, CEBPE, and PIP4K2 risk alleles for the development of ALL in children from Mexico City and Yucatan, Mexico...
November 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/28467442/the-transcriptional-regulation-of-the-human-angiotensinogen-gene-after-high-fat-diet-is-haplotype-dependent-novel-insights-into-the-gene-regulatory-networks-and-implications-for-human-hypertension
#12
Anita Rana, Sudhir Jain, Nitin Puri, Meenakshi Kaw, Natalie Sirianni, Deniz Eren, Brahma Raju Mopidevi, Ashok Kumar
Single nucleotide polymorphisms (SNPs) in the human angiotensinogen (hAGT) gene may modulate its transcription and affect the regulation of blood pressure via activation of the renin-angiotensin aldosterone system (RAAS). In this regard, we have identified polymorphisms in the 2.5 Kb promoter of the hAGT gene that form two haplotype (Hap) blocks: -6A/G (-1670A/G, -1562C/T, -1561T/C) and -217A/G (-532T/C, -793A/G, -1074T/C & -1178G/A). hAGT gene with Hap -6A/-217A (Hap I) is associated with increased blood pressure whereas, Hap -6G/-217G (Hap II) is associated with normal blood pressure in human subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28442792/a-smarcd2-containing-mswi-snf-complex-is-required-for-granulopoiesis
#13
Brittany C Michel, Cigall Kadoch
Mammalian SWI/SNF complexes have critical roles in development and differentiation, and are implicated in the pathogenesis of several diseases; however, the mechanisms underpinning disease manifestation and the specificity of the subunits mutated are incompletely understood. Newly identified loss-of-function mutations in the SMARCD2 gene (part of the SMARCD1, SMARCD2 and SMARCD3 paralog family) reveal an evolutionarily conserved role specifically for the SMARCD2 subunit in granulopoiesis, and further investigation implicates the CEBPɛ transcription factor as a key effector of this specific function...
April 26, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28373169/telomere-length-and-neighborhood-circumstances-evaluating-biological-response-to-unfavorable-exposures
#14
EDITORIAL
Shannon M Lynch, Nandita Mitra, Krithika Ravichandran, Jonathan Mitchell, Elaine Spangler, Wenting Zhou, Electra D Paskett, Sarah Gehlert, Cecilia DeGraffinreid, Raymond Stowe, Tamara Dubowitz, Harold Riethman, Charles C Branas, M K Peek, Timothy R Rebbeck
Background: Multilevel frameworks suggest neighborhood circumstances influence biology; however, this relationship is not well studied. Telomere length (TL) shortening has been associated with individual-level and neighborhood-level exposures and disease and may provide insights into underlying biologic mechanisms linking neighborhood with biology. To support neighborhood-biology investigations, we sought to determine the independent effect of neighborhood exposures on TL using standard multilevel linear regression models and quantile regression, a nonlinear, social science method applicable for testing the biologic hypothesis that extremes of the TL distribution are related to poor outcomes...
April 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28369036/chromatin-remodeling-factor-smarcd2-regulates-transcriptional-networks-controlling-differentiation-of-neutrophil-granulocytes
#15
Maximilian Witzel, Daniel Petersheim, Yanxin Fan, Ehsan Bahrami, Tomas Racek, Meino Rohlfs, Jacek Puchałka, Christian Mertes, Julien Gagneur, Christoph Ziegenhain, Wolfgang Enard, Asbjørg Stray-Pedersen, Peter D Arkwright, Miguel R Abboud, Vahid Pazhakh, Graham J Lieschke, Peter M Krawitz, Maik Dahlhoff, Marlon R Schneider, Eckhard Wolf, Hans-Peter Horny, Heinrich Schmidt, Alejandro A Schäffer, Christoph Klein
We identify SMARCD2 (SWI/SNF-related, matrix-associated, actin-dependent regulator of chromatin, subfamily D, member 2), also known as BAF60b (BRG1/Brahma-associated factor 60b), as a critical regulator of myeloid differentiation in humans, mice, and zebrafish. Studying patients from three unrelated pedigrees characterized by neutropenia, specific granule deficiency, myelodysplasia with excess of blast cells, and various developmental aberrations, we identified three homozygous loss-of-function mutations in SMARCD2...
May 2017: Nature Genetics
https://www.readbyqxmd.com/read/28369034/smarcd2-subunit-of-swi-snf-chromatin-remodeling-complexes-mediates-granulopoiesis-through-a-cebp%C3%A9-dependent-mechanism
#16
Pierre Priam, Veneta Krasteva, Philippe Rousseau, Giovanni D'Angelo, Louis Gaboury, Guy Sauvageau, Julie A Lessard
Recent studies suggest that individual subunits of chromatin-remodeling complexes produce biologically specific meaning in different cell types through combinatorial assembly. Here we show that granulocyte development requires SMARCD2, a subunit of ATP-dependent SWI/SNF (BAF) chromatin-remodeling complexes. Smarcd2-deficient mice fail to generate functionally mature neutrophils and eosinophils, a phenotype reminiscent of neutrophil-specific granule deficiency (SGD) in humans, for which loss-of-function mutations in CEBPE (encoding CEBPɛ) have been reported...
May 2017: Nature Genetics
https://www.readbyqxmd.com/read/28325737/measures-matter-the-local-exposure-isolation-lex-is-metrics-and-relationships-between-local-level-segregation-and-breast-cancer-survival
#17
EDITORIAL
Amin Bemanian, Kirsten M M Beyer
Background: The Black-to-White disparity in breast cancer survival is increasing, and racial residential segregation is a potential driver for this trend. However, study findings have been mixed, and no study has comprehensively compared the effectiveness of different local-level segregation metrics in explaining cancer survival.Methods: We proposed a set of new local segregation metrics named local exposure and isolation (LEx/Is) and compared our new local isolation metric with two related metrics, the location quotient (LQ) and the index of concentration at extremes (ICE), across the 102 largest U...
April 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28325736/geospatial-approaches-to-cancer-control-and-population-sciences
#18
EDITORIAL
Mario Schootman, Scarlett Lin Gomez, Kevin A Henry, Electra D Paskett, Gary L Ellison, April Oh, Stephen H Taplin, Zaria Tatalovich, David A Berrigan
Cancer incidence and mortality display strong geographic patterns worldwide and in the United States (1, 2). The environment where individuals live, work, and play is increasingly being recognized as important across the cancer control continuum, including the risk of cancer development, detection, diagnosis, treatment, mortality, and survivorship (3-5). At the same time, emergent technological capacity in geographic information systems (GIS) and mapping, along with increasing sophistication in applied spatial methods, has resulted in a growing research community developing and applying geospatial approaches in health research (5)...
April 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28273455/a-bach2-cebp-gene-regulatory-network-for-the-commitment-of-multipotent-hematopoietic-progenitors
#19
Ari Itoh-Nakadai, Mitsuyo Matsumoto, Hiroki Kato, Junichi Sasaki, Yukihiro Uehara, Yuki Sato, Risa Ebina-Shibuya, Mizuho Morooka, Ryo Funayama, Keiko Nakayama, Kyoko Ochiai, Akihiko Muto, Kazuhiko Igarashi
Hematopoietic stem cell and multipotent progenitor (MPP) commitment can be tuned in response to an infection so that their differentiation is biased toward myeloid cells. Here, we find that Bach2, which inhibits myeloid differentiation in common lymphoid progenitors, represses a cohort of myeloid genes and activates those linked to lymphoid function. Bach2 repressed both Cebpb and its target Csf1r, encoding C/EBPβ and macrophage colony-stimulating factor receptor (M-CSFr), respectively, whereas C/EBPβ repressed Bach2 and activated Csf1r...
March 7, 2017: Cell Reports
https://www.readbyqxmd.com/read/28270500/exploring-the-linkage-between-activity-friendly-zoning-inactivity-and-cancer-incidence-in-the-united-states
#20
EDITORIAL
Lisa M Nicholson, Julien Leider, Jamie F Chriqui
Background: Physical activity (PA) protects against cancer and enhances cancer survivorship. Given high inactivity rates nationwide, population-level physical activity facilitators are needed. Several authoritative bodies have recognized that zoning and planning helps create activity-friendly environments. This study examined the association between activity-friendly zoning, inactivity, and cancer in 478 of the most populous U.S. counties.Methods: County geocodes linked county-level data: cancer incidence and smoking (State Cancer Profiles), inactivity (Behavioral Risk Factor Surveillance System), 11 zoning measures (compiled by the study team), and covariates (from the American Community Survey and NAVTEQ)...
April 2017: Cancer Epidemiology, Biomarkers & Prevention
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