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https://www.readbyqxmd.com/read/28340574/myocyte-enhancer-factor-2d-provides-a-cross-talk-between-chronic-inflammation-and-lung-cancer
#1
Hai-Xing Zhu, Lin Shi, Yong Zhang, Yi-Chun Zhu, Chun-Xue Bai, Xiang-Dong Wang, Jie-Bai Zhou
BACKGROUND: Lung cancer is the leading cause of cancer-related morbidity and mortality worldwide. Patients with chronic respiratory diseases, such as chronic obstructive pulmonary disease (COPD), are exposed to a higher risk of developing lung cancer. Chronic inflammation may play an important role in the lung carcinogenesis among those patients. The present study aimed at identifying candidate biomarker predicting lung cancer risk among patients with chronic respiratory diseases. METHODS: We applied clinical bioinformatics tools to analyze different gene profile datasets with a special focus on screening the potential biomarker during chronic inflammation-lung cancer transition...
March 24, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28298358/identification-of-%C3%AE-catenin-interacting-proteins-in-nuclear-fractions-of-native-rat-collecting-duct-cells
#2
Jacqueline R Hwang, Chung-Lin Chou, Barbara Medvar, Mark A Knepper, Hyun Jun Jung
The gene encoding the aquaporin-2 water channel is regulated transcriptionally in response to vasopressin. In the renal collecting duct, vasopressin stimulates the nuclear translocation and phosphorylation (at Ser552) of β-catenin, a multifunctional protein that acts as a transcriptional co-regulator in the nucleus. The purpose of this study was to identify β-catenin interacting proteins that may be involved in transcriptional regulation in rat inner medullary collecting duct (IMCD) cells using both experimental and computational approaches...
March 15, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28271248/network-reconstruction-reveals-that-valproic-acid-activates-neurogenic-transcriptional-programs-in-adult-brain-following-traumatic-injury
#3
Gerald A Higgins, Patrick Georgoff, Vahagn Nikolian, Ari Allyn-Feuer, Brian Pauls, Richard Higgins, Brian D Athey, Hasan E Alam
OBJECTIVES: To determine the mechanism of action of valproic acid (VPA) in the adult central nervous system (CNS) following traumatic brain injury (TBI) and hemorrhagic shock (HS). METHODS: Data were analyzed from different sources, including experiments in a porcine model, data from postmortem human brain, published studies, public and commercial databases. RESULTS: The transcriptional program in the CNS following TBI, HS, and VPA treatment includes activation of regulatory pathways that enhance neurogenesis and suppress gliogenesis...
March 7, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28222718/abnormal-epigenetic-changes-during-differentiation-of-human-skeletal-muscle-stem-cells-from-obese-subjects
#4
Cajsa Davegårdh, Christa Broholm, Alexander Perfilyev, Tora Henriksen, Sonia García-Calzón, Lone Peijs, Ninna Schiøler Hansen, Petr Volkov, Rasmus Kjøbsted, Jørgen F P Wojtaszewski, Maria Pedersen, Bente Klarlund Pedersen, Dov B Ballak, Charles A Dinarello, Bas Heinhuis, Leo A B Joosten, Emma Nilsson, Allan Vaag, Camilla Scheele, Charlotte Ling
BACKGROUND: Human skeletal muscle stem cells are important for muscle regeneration. However, the combined genome-wide DNA methylation and expression changes taking place during adult myogenesis have not been described in detail and novel myogenic factors may be discovered. Additionally, obesity is associated with low relative muscle mass and diminished metabolism. Epigenetic alterations taking place during myogenesis might contribute to these defects. METHODS: We used Infinium HumanMethylation450 BeadChip Kit (Illumina) and HumanHT-12 Expression BeadChip (Illumina) to analyze genome-wide DNA methylation and transcription before versus after differentiation of primary human myoblasts from 14 non-obese and 14 obese individuals...
February 22, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28063919/proteomic-analysis-of-the-protective-effects-of-aqueous-bark-extract-of-terminalia-arjuna-roxb-on-isoproterenol-induced-cardiac-hypertrophy-in-rats
#5
Santosh Kumar, Md Jahangir Alam, Pankaj Prabhakar, Sayeed Ahmad, Subir K Maulik, Manish Sharma, Shyamal K Goswami
ETHNOPHARMACOLOGICAL RELEVANCE: Aqueous bark extract of Terminalia arjuna (TA) has been in use as an ethnomedicine for cardiovascular ailments in the Indian subcontinent for centuries. Studies using hemodynamic, ROS scavenging and anti-inflammatory parameters in animal models have shown its anti-atherogenic, hypotensive, inotropic, anti-inflammatory effects. However, details analysis on its effects on established molecular and cell biological markers are a prerequisite for its wider acceptance to the medical community...
January 4, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28058730/multilocus-analysis-reveals-three-candidate-genes-for-chinese-migraine-susceptibility
#6
Xing-Kai An, Jie Fang, Zhen-Zhen Yu, Qing Lin, Cong-Xia Lu, Hong-Li Qu, Qi-Lin Ma
Several genome-wide association studies (GWASs) in Caucasian populations have identified 12 loci that are significantly associated with migraine. More evidence suggests that serotonin receptors are also involved in migraine pathophysiology. In the present study, a case-control study was conducted in a cohort of 581 migraine cases and 533 ethnically matched controls among a Chinese population. Eighteen polymorphisms from serotonin receptors and GWASs were selected, and genotyping was performed using a Sequenom MALDI-TOF mass spectrometry iPLEX platform...
January 6, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/27977899/individual-evaluation-of-cardiac-marker-expression-and-self-beating-during-cardiac-differentiation-of-p19cl6-cells-on-different-culture-substrates
#7
Tetsuji Yamaoka, Mitsuhi Hirata, Takaaki Dan, Atsushi Yamashita, Akihisa Otaka, Takahiko Nakaoki, Azizi Miskon, Sachiro Kakinoki, Atsushi Mahara
Cell-based therapies using self-beating cardiomyocytes have been attracting great attention for use in cardiac regeneration, although an effective procedure to improve cardiac differentiation and self-beating induction is required. The purpose of this study is to clarify the effect of the culture substrate on cardiac maturation by separately evaluating the cardiac differentiation step and the beating induction step in vitro. To this end, the well-studied cardiomyocyte-like progenitor cell line P19CL6 and neonatal cardiomyocytes (NCMs) were selected and cultured on substrates coated with collagen type I (Col-I), gelatin (Gel), fibronectin (FN), or poly-l-lysine (PLL)...
April 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27827316/brm-promoter-polymorphisms-risk-and-survival-of-advanced-non-small-cell-lung-cancer-patients-in-the-princess-margaret-cohort-and-ncic-ctg-br-24-trial
#8
Geoffrey Liu, Sinead Cuffe, Shermi Liang, Abul K Azad, Lu Cheng, Yonathan Brhane, Xin Qiu, David W Cescon, Jeff P Bruce, Zhuo Chen, Dangxiao Cheng, Devalben Patel, Brandon C Tse, Scott A Laurie, Glenwood D Goss, Natasha B Leighl, Rayjean J Hung, Penelope A Bradbury, Lesley Seymour, Frances A Shepherd, Ming-Sound Tsao, Bingshu E Chen, Wei Xu, David Reisman
PURPOSE: BRM, a key catalytic subunit of the SWI/SNF chromatin remodeling complex, is a putative tumor susceptibility gene that is silenced in 15% of non-small cell lung cancer (NSCLC). Two novel BRM promoter polymorphisms (BRM-741, BRM-1321) are associated with reversible epigenetic silencing of BRM protein expression. EXPERIMENTAL DESIGN: Advanced NSCLC patients from the Princess Margaret (PM) cohort study and from the CCTG BR.24 clinical trial were genotyped for BRM promoter polymorphisms...
November 8, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27824051/genomic-analyses-identify-recurrent-mef2d-fusions-in-acute-lymphoblastic-leukaemia
#9
Zhaohui Gu, Michelle Churchman, Kathryn Roberts, Yongjin Li, Yu Liu, Richard C Harvey, Kelly McCastlain, Shalini C Reshmi, Debbie Payne-Turner, Ilaria Iacobucci, Ying Shao, I-Ming Chen, Marcus Valentine, Deqing Pei, Karen L Mungall, Andrew J Mungall, Yussanne Ma, Richard Moore, Marco Marra, Eileen Stonerock, Julie M Gastier-Foster, Meenakshi Devidas, Yunfeng Dai, Brent Wood, Michael Borowitz, Eric E Larsen, Kelly Maloney, Leonard A Mattano, Anne Angiolillo, Wanda L Salzer, Michael J Burke, Francesca Gianni, Orietta Spinelli, Jerald P Radich, Mark D Minden, Anthony V Moorman, Bella Patel, Adele K Fielding, Jacob M Rowe, Selina M Luger, Ravi Bhatia, Ibrahim Aldoss, Stephen J Forman, Jessica Kohlschmidt, Krzysztof Mrózek, Guido Marcucci, Clara D Bloomfield, Wendy Stock, Steven Kornblau, Hagop M Kantarjian, Marina Konopleva, Elisabeth Paietta, Cheryl L Willman, Mignon L Loh, Stephen P Hunger, Charles G Mullighan
Chromosomal rearrangements are initiating events in acute lymphoblastic leukaemia (ALL). Here using RNA sequencing of 560 ALL cases, we identify rearrangements between MEF2D (myocyte enhancer factor 2D) and five genes (BCL9, CSF1R, DAZAP1, HNRNPUL1 and SS18) in 22 B progenitor ALL (B-ALL) cases with a distinct gene expression profile, the most common of which is MEF2D-BCL9. Examination of an extended cohort of 1,164 B-ALL cases identified 30 cases with MEF2D rearrangements, which include an additional fusion partner, FOXJ2; thus, MEF2D-rearranged cases comprise 5...
November 8, 2016: Nature Communications
https://www.readbyqxmd.com/read/27698762/tfp5-prevents-1-methyl-4-phenyl-pyridine-ion-induced-neurotoxicity-in-mouse-cortical-neurons
#10
Qi-Shan Zhang, Yuan-Gao Liao, Zhong Ji, Yong Gu, Hai-Shan Jiang, Zuo-Shan Xie, Su-Yue Pan, Ya-Fang Hu
The present study aimed to investigate the protective effect of a modified p5 peptide, TFP5, on 1-methyl-4-phenyl pyridine ion (MPP(+))-induced neurotoxicity in cortical neurons and explore the therapeutic effect of TFP5 on Parkinson's disease (PD). MPP(+) was applied to a primary culture of mouse cortical neurons to establish the cell model of PD. Neurons were divided into four groups: Control, model (MPP(+)), scrambled peptide (Scb) (Scb + MPP(+)) and TFP5 (TFP5 + MPP(+)) groups. Pretreatment with Scb or TFP5 was applied to the latter two groups, respectively, for 3 h, while phosphate-buffered saline was applied to the control and model groups...
October 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27507882/mef2d-bcl9-fusion-gene-is-associated-with-high-risk-acute-b-cell-precursor-lymphoblastic-leukemia-in-adolescents
#11
Kyogo Suzuki, Yusuke Okuno, Nozomu Kawashima, Hideki Muramatsu, Tatsuya Okuno, Xinan Wang, Shinsuke Kataoka, Yuko Sekiya, Motoharu Hamada, Norihiro Murakami, Daiei Kojima, Kotaro Narita, Atsushi Narita, Hirotoshi Sakaguchi, Kimiyoshi Sakaguchi, Nao Yoshida, Nobuhiro Nishio, Asahito Hama, Yoshiyuki Takahashi, Kazuko Kudo, Koji Kato, Seiji Kojima
PURPOSE: Acute lymphoblastic leukemia (ALL) makes up a significant proportion of all pediatric cancers, and relapsed ALL is a leading cause of cancer-associated deaths in children. Identification of risk factors and druggable molecular targets in ALL can lead to a better stratification of treatments and subsequent improvement in prognosis. PATIENTS AND METHODS: We enrolled 59 children with relapsed or primary refractory ALL who were treated in our institutions. We primarily performed RNA sequencing (RNA-seq) using patients' leukemic cells to comprehensively detect gene fusions and analyze gene expression profiles...
October 1, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27499645/first-in-human-phase-1-trial-of-agarose-beads-containing-murine-renca-cells-in-advanced-solid-tumors
#12
Barry H Smith, Tapan Parikh, Zoe P Andrada, Thomas J Fahey, Nathaniel Berman, Madeline Wiles, Angelica Nazarian, Joanne Thomas, Anna Arreglado, Eugene Akahoho, David J Wolf, Daniel M Levine, Thomas S Parker, Lawrence S Gazda, Allyson J Ocean
PURPOSE: Agarose macrobeads containing mouse renal adenocarcinoma cells (RMBs) release factors, suppressing the growth of cancer cells and prolonging survival in spontaneous or induced tumor animals, mediated, in part, by increased levels of myocyte-enhancing factor (MEF2D) via EGFR-and AKT-signaling pathways. The primary objective of this study was to determine the safety of RMBs in advanced, treatment-resistant metastatic cancers, and then its efficacy (survival), which is the secondary objective...
2016: Cancer Growth and Metastasis
https://www.readbyqxmd.com/read/27487558/brm-polymorphisms-pancreatic-cancer-risk-and-survival
#13
Maja Segedi, Laura N Anderson, Osvaldo Espin-Garcia, Ayelet Borgida, Teresa Bianco, Dangxiao Cheng, Zhuo Chen, Devalben Patel, M Catherine Brown, Wei Xu, David Reisman, Steven Gallinger, Michelle Cotterchio, Rayjean Hung, Geoffrey Liu, Sean P Cleary
Variant alleles of two promoter polymorphisms in the BRM gene (BRM-741, BRM-1321), create MEF2D transcription binding sites that lead to epigenetic silencing of BRM, the key catalytic component of the SWI/SNF chromatin remodeling complex. BRM suppression can be reversed pharmacologically.(1) Our group and others have reported associations with lung, head and neck, hepatocellular cancer risk,(1-3) and with lung and esophageal cancer prognosis (ASCO 2013; abstract 11057 & 4077). Herein, we assessed risk and survival associations with pancreatic cancer...
December 1, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27444243/%C3%AE-asarone-increases-mef2d-and-th-levels-and-reduces-%C3%AE-synuclein-level-in-6-ohda-induced-rats-via-regulating-the-hsp70-mapk-mef2d-beclin-1-pathway-chaperone-mediated-autophagy-activation-macroautophagy-inhibition-and-hsp70-up-expression
#14
Liping Huang, Minzhen Deng, Yuping He, Shiyao Lu, Shu Liu, Yongqi Fang
Inactive myocyte enhancer factor 2D (MEF2D) and alpha-synuclein (α-syn) aggregation will cause neuronal death. MEF2D or α-syn degradation is also associated with macroautophagy, chaperone-mediated autophagy (CMA) and heat-shock protein 70 (HSP70). We found that β-asarone had positive effects on treating 6-hydroxydopamine (6-OHDA)-induced rats, but mechanisms of β-asarone affecting on MEF2D and α-syn via regulating the HSP70/MAPK/MEF2D/Beclin-1 pathway remain unclear. Unilateral 6-OHDA injection into the medial forebrain bundle was used to create PD rats, which were divided into four groups and administered for 30days: 6-OHDA model group, MEF2D inhibitor-treated group (SB203580, 0...
October 15, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27428428/genomic-profiling-of-adult-and-pediatric-b-cell-acute-lymphoblastic-leukemia
#15
Yuan-Fang Liu, Bai-Yan Wang, Wei-Na Zhang, Jin-Yan Huang, Ben-Shang Li, Ming Zhang, Lu Jiang, Jian-Feng Li, Ming-Jie Wang, Yu-Jun Dai, Zi-Guan Zhang, Qiang Wang, Jie Kong, Bing Chen, Yong-Mei Zhu, Xiang-Qin Weng, Zhi-Xiang Shen, Jun-Min Li, Jin Wang, Xiao-Jing Yan, Yan Li, Ying-Min Liang, Li Liu, Xie-Qun Chen, Wang-Gang Zhang, Jin-Song Yan, Jian-Da Hu, Shu-Hong Shen, Jing Chen, Long-Jun Gu, Deqing Pei, Yongjin Li, Gang Wu, Xin Zhou, Rui-Bao Ren, Cheng Cheng, Jun J Yang, Kan-Kan Wang, Sheng-Yue Wang, Jinghui Zhang, Jian-Qing Mi, Ching-Hon Pui, Jing-Yan Tang, Zhu Chen, Sai-Juan Chen
Genomic landscapes of 92 adult and 111 pediatric patients with B-cell acute lymphoblastic leukemia (B-ALL) were investigated using next-generation sequencing and copy number alteration analysis. Recurrent gene mutations and fusions were tested in an additional 87 adult and 93 pediatric patients. Among the 29 newly identified in-frame gene fusions, those involving MEF2D and ZNF384 were clinically relevant and were demonstrated to perturb B-cell differentiation, with EP300-ZNF384 inducing leukemia in mice. Eight gene expression subgroups associated with characteristic genetic abnormalities were identified, including leukemia with MEF2D and ZNF384 fusions in two distinct clusters...
June 2016: EBioMedicine
https://www.readbyqxmd.com/read/27422367/brg1-in-the-nucleus-accumbens-regulates-cocaine-seeking-behavior
#16
Zi-Jun Wang, Jennifer A Martin, Lauren E Mueller, Aaron Caccamise, Craig T Werner, Rachael L Neve, Amy M Gancarz, Jun-Xu Li, David M Dietz
BACKGROUND: Drug addiction is defined as a chronic disease characterized by compulsive drug seeking and episodes of relapse despite prolonged periods of drug abstinence. Neurobiological adaptations, including transcriptional and epigenetic alterations in the nucleus accumbens, are thought to contribute to this life-long disease state. We previously demonstrated that the transcription factor SMAD3 is increased after 7 days of withdrawal from cocaine self-administration. However, it is still unknown which additional factors participate in the process of chromatin remodeling and facilitate the binding of SMAD3 to promoter regions of target genes...
November 1, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/27413575/chaperone-mediated-autophagy-and-mitochondrial-homeostasis-in-parkinson-s-disease
#17
REVIEW
Ruixin Yang, Guodong Gao, Zixu Mao, Qian Yang
Parkinson's disease (PD), a complex neurodegenerative disorder, is pathologically characterized by the formation of Lewy bodies and loss of dopaminergic neurons in the substantia nigra pars compacta (SNc). Mitochondrial dysfunction is considered to be one of the most important causative mechanisms. In addition, dysfunction of chaperone-mediated autophagy (CMA), one of the lysosomal proteolytic pathways, has been shown to play an important role in the pathogenesis of PD. An exciting and important development is recent finding that CMA and mitochondrial quality control may be linked...
2016: Parkinson's Disease
https://www.readbyqxmd.com/read/27364559/mef2d-transduces-microenvironment-stimuli-to-zeb1-to-promote-epithelial-mesenchymal-transition-and-metastasis-in-colorectal-cancer
#18
Li Su, Yongli Luo, Zhi Yang, Jing Yang, Chao Yao, Feifei Cheng, Juanjuan Shan, Jun Chen, Fangfang Li, Limei Liu, Chungang Liu, Yanmin Xu, Lupin Jiang, Deyu Guo, Jesus Prieto, Matías A Ávila, Junjie Shen, Cheng Qian
Epithelial-mesenchymal transition (EMT) is an essential mechanism of metastasis, including in colorectal cancer. Although EMT processes are often triggered in cancer cells by their surrounding microenvironment, how EMT-relevant genes control these processes is not well understood. In multiple types of cancers, the transcription factor MEF2D has been implicated in cell proliferation, but its contributions to metastasis have not been addressed. Here, we show MEF2D is overexpressed in clinical colorectal cancer tissues where its high expression correlates with metastatic process...
September 1, 2016: Cancer Research
https://www.readbyqxmd.com/read/27277280/potent-protection-against-mpp-induced-neurotoxicity-via-activating-transcription-factor-mef2d-by-a-novel-derivative-of-naturally-occurring-danshensu-tetramethylpyrazine
#19
Shengquan Hu, Liang Wang, Shinghung Mak, Zaijun Zhang, Daping Xu, Haitao Li, Yide Li, Yuanjia Hu, Simon Ming Yuen Lee, Yuqiang Wang, Yifan Han
Danshensu (DSS) and tetramethylpyrazine (TMP) are active ingredients of Salvia miltiorrhiza Bge. and Ligusticum chuanxiong Hort that are widely used in oriental medicine. Structural combination of compounds with known biological activity may lead to the formation of a molecule with multiple properties or new function profile. In the current study, the neuroprotective effects of DT-010, a novel analogue in which TMP was coupled to DSS through an ester bond and two allyl groups at the carboxyl group, were evaluated in a cellular model of Parkinson's disease (PD)...
December 2016: Neuromolecular Medicine
https://www.readbyqxmd.com/read/27245668/multifunction-of-chrysin-in-parkinson-s-model-anti-neuronal-apoptosis-neuroprotection-via-activation-of-mef2d-and-inhibition-of-monoamine-oxidase-b
#20
Baojian Guo, Chengyou Zheng, Wei Cai, Jiehong Cheng, Hongyu Wang, Haitao Li, Yewei Sun, Wei Cui, Yuqiang Wang, Yifan Han, Simon Ming-Yuen Lee, Zaijun Zhang
Chrysin, a flavonoid compound existing in several plants, is applied as a dietary supplement because of its beneficial effects on general human health and alleviation of neurological disorders. However, mechanisms underlying neuroprotection of chrysin has not been fully elucidated, and the effects of chrysin on the Parkinson's disease (PD) model in vivo have not been investigated. It is here shown that chrysin protects primary granular neurons against 1-methyl-4-phenylpyridinium ion insult via antiapoptosis by reversing the dysregulated expression of Bcl-2, Bax, and caspase 3...
July 6, 2016: Journal of Agricultural and Food Chemistry
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