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https://www.readbyqxmd.com/read/28080123/treating-adult-survivors-of-childhood-emotional-abuse-and-neglect-a-new-framework
#1
Frances K Grossman, Joseph Spinazzola, Marla Zucker, Elizabeth Hopper
This article provides the outline of a new framework for treating adult survivors of childhood emotional abuse and neglect. Component-based psychotherapy (CBP) is an evidence-informed model that bridges, synthesizes, and expands upon several existing schools, or theories, of treatment for adult survivors of traumatic stress. These include approaches to therapy that stem from more classic traditions in psychology, such as psychoanalysis, to more modern approaches including those informed by feminist thought...
2017: American Journal of Orthopsychiatry
https://www.readbyqxmd.com/read/28078400/characterization-of-four-endophytic-fungi-as-potential-consolidated-bioprocessing-hosts-for-conversion-of-lignocellulose-into-advanced-biofuels
#2
Weihua Wu, Ryan W Davis, Mary Bao Tran-Gyamfi, Alan Kuo, Kurt LaButti, Sirma Mihaltcheva, Hope Hundley, Mansi Chovatia, Erika Lindquist, Kerrie Barry, Igor V Grigoriev, Bernard Henrissat, John M Gladden
Recently, several endophytic fungi have been demonstrated to produce volatile organic compounds (VOCs) with properties similar to fossil fuels, called "mycodiesel," while growing on lignocellulosic plant and agricultural residues. The fact that endophytes are plant symbionts suggests that some may be able to produce lignocellulolytic enzymes, making them capable of both deconstructing lignocellulose and converting it into mycodiesel, two properties that indicate that these strains may be useful consolidated bioprocessing (CBP) hosts for the biofuel production...
January 12, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28077620/mitogen-induced-distinct-epi-alleles-are-phosphorylated-at-either-h3s10-or-h3s28-depending-on-h3k27-acetylation
#3
Dilshad H Khan, Shannon Healy, Shihua He, Daniel Lichtensztejn, Ludger Klewes, Kiran L Sharma, Veronica Lau, Sabine Mai, Geneviève P Delcuve, James R Davie
Stimulation of the MAPK pathway results in mitogen- and stress-activated protein kinase 1/2 (MSK1/2)-catalyzed phosphorylation of histone H3 at serine 10 or 28 and expression of immediate-early (IE) genes. In 10T1/2 mouse fibroblasts, phosphorylation of H3S10 and H3S28 occurs on different H3 molecules and in different nuclear regions. Likewise, we show that mitogen-induced H3S10 and H3S28 phosphorylation occurs in separate pools in human primary fibroblasts. High-resolution imaging studies on both cell types have revealed that H3S10 and H3S28 phosphorylation events can be induced in a single cell but on different alleles, giving rise to H3S10ph and H3S28ph epi-alleles...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28076781/crtc1-nuclear-translocation-following-learning-modulates-memory-strength-via-exchange-of-chromatin-remodeling-complexes-on-the-fgf1-gene
#4
Shusaku Uchida, Brett J W Teubner, Charles Hevi, Kumiko Hara, Ayumi Kobayashi, Rutu M Dave, Tatsushi Shintaku, Pattaporn Jaikhan, Hirotaka Yamagata, Takayoshi Suzuki, Yoshifumi Watanabe, Stanislav S Zakharenko, Gleb P Shumyatsky
Memory is formed by synapse-to-nucleus communication that leads to regulation of gene transcription, but the identity and organizational logic of signaling pathways involved in this communication remain unclear. Here we find that the transcription cofactor CRTC1 is a critical determinant of sustained gene transcription and memory strength in the hippocampus. Following associative learning, synaptically localized CRTC1 is translocated to the nucleus and regulates Fgf1b transcription in an activity-dependent manner...
January 10, 2017: Cell Reports
https://www.readbyqxmd.com/read/28069943/acetylation-promotes-tyrrs-nuclear-translocation-to-prevent-oxidative-damage
#5
Xuanye Cao, Chaoqun Li, Siyu Xiao, Yunlan Tang, Jing Huang, Shuan Zhao, Xueyu Li, Jixi Li, Ruilin Zhang, Wei Yu
Tyrosyl-tRNA synthetase (TyrRS) is well known for its essential aminoacylation function in protein synthesis. Recently, TyrRS has been shown to translocate to the nucleus and protect against DNA damage due to oxidative stress. However, the mechanism of TyrRS nuclear localization has not yet been determined. Herein, we report that TyrRS becomes highly acetylated in response to oxidative stress, which promotes nuclear translocation. Moreover, p300/CBP-associated factor (PCAF), an acetyltransferase, and sirtuin 1 (SIRT1), a NAD(+)-dependent deacetylase, regulate the nuclear localization of TyrRS in an acetylation-dependent manner...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28069324/differences-in-therapeutic-effects-of-topically-applied-corticosteroid-and-tacrolimus-on-atopic-dermatitis-like-symptoms-in-nc-nga-mice
#6
Atsushi Noguchi, Mitsutoshi Tominaga, Nobuaki Takahashi, Hironori Matsuda, Yayoi Kamata, Yoshie Umehara, Kyi Chan Ko, Yasushi Suga, Hideoki Ogawa, Kenji Takamori
BACKGROUND: Topical corticosteroid and calcineurin inhibitor have similar therapeutic benefits in atopic dermatitis (AD), but the differences in therapeutic mechanisms of action of these agents against AD symptoms are not fully understood. OBJECTIVE: This study was performed to examine the different effects of topical betamethasone valerate (BMV), clobetasol propionate (CBP), and tacrolimus (TAC) on itch-related behavior and dermatitis in NC/Nga mice with AD-like symptoms...
December 24, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28068431/cil-102-induced-cell-cycle-arrest-and-apoptosis-in-colorectal-cancer-cells-via-upregulation-of-p21-and-gadd45
#7
Wen-Shih Huang, Yi-Hung Kuo, Hsing-Chun Kuo, Meng-Chiao Hsieh, Cheng-Yi Huang, Ko-Chao Lee, Kam-Fai Lee, Chien-Heng Shen, Shui-Yi Tung, Chih-Chuan Teng
CIL-102 (1-[4-(furo[2,3-b]quinolin-4-ylamino)phenyl]ethanone) is a well-known, major active agent of the alkaloid derivative of Camptotheca acuminata with valuable biological properties, including anti-tumorigenic activity. In this study, we investigated the molecular mechanisms by which CIL-102 mediated the induction of cell death, and we performed cell cycle G2/M arrest to clarify molecular changes in colorectal cancer cells (CRC). Treatment of DLD-1 cells with CIL-102 resulted in triggering the extrinsic apoptosis pathway through the activation of Fas-L, caspase-8 and the induction of Bid cleavage and cytochrome c release in a time-dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/28062405/presence-of-multiple-spondyloarthritis-spa-features-is-important-but-not-sufficient-for-a-diagnosis-of-axial-spondyloarthritis-data-from-the-spondyloarthritis-caught-early-space-cohort
#8
Z Ez-Zaitouni, P A C Bakker, M van Lunteren, I J Berg, R Landewé, M van Oosterhout, M Lorenzin, D van der Heijde, F A van Gaalen
OBJECTIVES: Concerns have been raised about overdiagnosis of axial spondyloarthritis (axSpA). We investigated whether patients with chronic back pain (CBP) of short duration and multiple SpA features are always diagnosed with axSpA by the rheumatologist, and to what extent fulfilment of the Assessment of SpondyloArthritis International Society (ASAS) axSpA criteria is associated with an axSpA diagnosis. METHODS: Baseline data from 500 patients from the SPondyloArthritis Caught Early cohort which includes patients with CBP (≥3 months, ≤2 years, onset <45 years) were analysed...
January 6, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28045892/cyclobenzaprine-raises-ros-levels-in-leishmania-infantum-and-reduces-parasite-burden-in-infected-mice
#9
Edézio Ferreira Cunha-Júnior, Valter Viana Andrade-Neto, Marta Lopes Lima, Thais Alves da Costa-Silva, Andres J Galisteo Junior, Maria A Abengózar, Coral Barbas, Luis Rivas, Elmo Eduardo Almeida-Amaral, Andre Gustavo Tempone, Eduardo Caio Torres-Santos
BACKGROUND: The leishmanicidal action of tricyclic antidepressants has been studied and evidences have pointed that their action is linked to inhibition of trypanothione reductase, a key enzyme in the redox metabolism of pathogenic trypanosomes. Cyclobenzaprine (CBP) is a tricyclic structurally related to the antidepressant amitriptyline, differing only by the presence of a double bond in the central ring. This paper describes the effect of CBP in experimental visceral leishmaniasis, its inhibitory effect in trypanothione reductase and the potential immunomodulatory activity...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28042453/design-and-synthesis-of-selective-small-molecule-inhibitors-of-coactivator-associated-arginine-methyltransferase-1-carm1
#10
H Ü Kaniskan, M S Eram, J Liu, D Smil, M L Martini, Y Shen, V Santhakumar, P J Brown, C Arrowsmith, M Vedadi, J Jin
Coactivator-associated arginine methyltransferase 1 (CARM1) is a type I protein arginine methyltransferase (PRMT) that catalyzes the conversion of arginine into monomethylarginine (MMA) and further into asymmetric dimethylarginine (ADMA). CARM1 methylates histone 3 arginines 17 and 26, as well as numerous non-histone proteins including CBP/p300, SRC-3, NCOA2, PABP1, and SAP49, while also functioning as a coactivator for various proteins that have been linked to cancer such as p53, NF-κβ, β-catenin, E2F1 and steroid hormone receptor ERα...
September 1, 2016: MedChemComm
https://www.readbyqxmd.com/read/28024437/high-throughput-thermal-stability-assessment-of-dna-hairpins-based-on-high-resolution-melting
#11
Jing Wang, Ping Dong, Wei Wu, Xiaoming Pan, Xingguo Liang
On the basis of high-resolution melting, a high-throughput approach to measure melting temperatures (Tms) of short DNA hairpins was developed. With this method, Tms of thousands of triloop, tetraloop, and pentaloop hairpins involving various loop sequences and various closing base pairs (cbp) were obtained in hours. The stability of triloop hairpins decreased with the change of cbp (5'-3') in the order of c-g > g-c > t-a ≥ a-t, showing that the cbp of 5'-Pyr-Pur-3' (Pyr = pyrimidine, Pur = purine) contributed more stability than 5'-Pur-Pyr-3'...
December 26, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28018858/coxsackievirus-b3-directly-induced-th17-cell-differentiation-by-inhibiting-nup98-expression-in-patients-with-acute-viral-myocarditis
#12
Qi Long, Yu-Hua Liao, Yu Xie, Wei Liang, Xiang Cheng, Jing Yuan, Miao Yu
Th17 cells play a key role in the progression of coxsackievirus B3 (CVB3)-induced acute viral myocarditis (AVMC). However, the direct effect of virus on Th17 cell differentiation is still unknown. Recently, nucleoporin (Nup) 98 has been proved to be associated with lymphocyte differentiation. Therefore, we investigated whether Nup98 mediated Th17 cell differentiation in AVMC. In our study, patients with AVMC and healthy controls were recruited. The results showed that CVB3 could enter into the CD4(+) T cells in AVMC patients and healthy controls...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28004755/stat3-undergoes-acetylation-dependent-mitochondrial-translocation-to-regulate-pyruvate-metabolism
#13
Yan S Xu, Jinyuan J Liang, Yumei Wang, Xiang-Zhong J Zhao, Li Xu, Ye-Yang Xu, Quanli C Zou, Junxun M Zhang, Cheng-E Tu, Yan-Ge Cui, Wei-Hong Sun, Chao Huang, Jing-Hua Yang, Y Eugene Chin
Cytoplasmic STAT3, after activation by growth factors, translocates to different subcellular compartments, including nuclei and mitochondria, where it carries out different biological functions. However, the precise mechanism by which STAT3 undergoes mitochondrial translocation and subsequently regulates the tricarboxylic acid (TCA) cycle-electron transport chain (ETC) remains poorly understood. Here, we clarify this process by visualizing STAT3 acetylation in starved cells after serum reintroduction or insulin stimulation...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28002667/discovery-of-a-potent-cell-penetrant-and-selective-p300-cbp-associated-factor-pcaf-general-control-non-derepressible-5-gcn5-bromodomain-chemical-probe
#14
Philip G Humphreys, Paul Bamborough, Chun-Wa Chung, Peter D Craggs, Laurie J Gordon, Paola Grandi, Thomas G Hayhow, Jameed Hussain, Katherine L Jones, Matthew Lindon, Anne-Marie Michon, Jessica F Renaux, Colin J Suckling, David F Tough, Rab K Prinjha
p300/CREB binding protein associated factor (PCAF/KAT2B) and general control non-derepressible 5 (GCN5/KAT2A) are multidomain proteins that have been implicated in retroviral infection, inflammation pathways and cancer development. However, outside of viral replication, little is known about the dependence of these effects on the C-terminal bromodomain. Herein, we report GSK4027 as a chemical probe for the PCAF/GCN5 bromodomain, together with GSK4028 as an enantiomeric negative control. The probe was optimized from a weakly potent, non-selective pyridazinone hit to deliver high potency for the PCAF/GCN5 bromodomain, high solubility, cellular target engagement and ≥18000 fold selectivity over the BET family, together with ≥70 fold selectivity over the wider bromodomain families...
December 21, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28002468/conserved-lysine-acetylation-within-the-microtubule-binding-domain-regulates-map2-tau-family-members
#15
Andrew W Hwang, Hanna Trzeciakiewicz, Dave Friedmann, Chao-Xing Yuan, Ronen Marmorstein, Virginia M Y Lee, Todd J Cohen
Lysine acetylation has emerged as a dominant post-translational modification (PTM) regulating tau proteins in Alzheimer's disease (AD) and related tauopathies. Mass spectrometry studies indicate that tau acetylation sites cluster within the microtubule-binding region (MTBR), a region that is highly conserved among tau, MAP2, and MAP4 family members, implying that acetylation could represent a conserved regulatory mechanism for MAPs beyond tau. Here, we combined mass spectrometry, biochemical assays, and cell-based approaches to demonstrate that the tau family members MAP2 and MAP4 are also subject to reversible acetylation...
2016: PloS One
https://www.readbyqxmd.com/read/27989401/cbp-p300-bromodomains-regulate-amyloid-like-protein-aggregation-upon-aberrant-lysine-acetylation
#16
Heidi Olzscha, Oleg Fedorov, Benedikt M Kessler, Stefan Knapp, Nicholas B La Thangue
Lysine acetylation is becoming increasingly recognized as a general biological principle in cellular homeostasis, and is subject to abnormal control in different human pathologies. Here, we describe a global effect on amyloid-like protein aggregation in human cells that results from aberrant lysine acetylation. Bromodomain reader proteins are involved in the aggregation process and, using chemical biology and gene silencing, we establish that p300/CBP bromodomains are necessary for aggregation to occur. Moreover, protein aggregation disturbs proteostasis by impairing the ubiquitin proteasome system (UPS) and protein translation, resulting in decreased cell viability...
December 10, 2016: Cell Chemical Biology
https://www.readbyqxmd.com/read/27983618/efficient-terahertz-wide-angle-nufft-based-inverse-synthetic-aperture-imaging-considering-spherical-wavefront
#17
Jingkun Gao, Bin Deng, Yuliang Qin, Hongqiang Wang, Xiang Li
An efficient wide-angle inverse synthetic aperture imaging method considering the spherical wavefront effects and suitable for the terahertz band is presented. Firstly, the echo signal model under spherical wave assumption is established, and the detailed wavefront curvature compensation method accelerated by 1D fast Fourier transform (FFT) is discussed. Then, to speed up the reconstruction procedure, the fast Gaussian gridding (FGG)-based nonuniform FFT (NUFFT) is employed to focus the image. Finally, proof-of-principle experiments are carried out and the results are compared with the ones obtained by the convolution back-projection (CBP) algorithm...
December 14, 2016: Sensors
https://www.readbyqxmd.com/read/27979071/a-recyclable-protein-resource-derived-from-cauliflower-by-products-potential-biological-activities-of-protein-hydrolysates
#18
Yang Xu, Yuting Li, Tao Bao, Xiaodong Zheng, Wei Chen, Jianxu Wang
Cauliflower by-products (CBP) are rich in leaf protein. Every year tons of CBP will lead to environmental pollution. Therefore, this study was conducted to extract leaf protein from CBP and investigate its biological activities. Our results showed that the optimal extraction parameters were: a liquid to solid ratio of 4mL/g, a pH of 11, an ultrasonic extraction lasting 15min, and at an applied power of 175W. Under these optimized conditions, 12.066g of soluble leaf protein (SLP) was obtained from 1000g of CBP and its extraction yield was 53...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27975251/the-study-of-posttranslational-modifications-of-tau-protein-by-nuclear-magnetic-resonance-spectroscopy-phosphorylation-of-tau-protein-by-erk2-recombinant-kinase-and-rat-brain-extract-and-acetylation-by-recombinant-creb-binding-protein
#19
Haoling Qi, Clément Despres, Sudhakaran Prabakaran, François-Xavier Cantrelle, Béatrice Chambraud, Jeremy Gunawardena, Guy Lippens, Caroline Smet-Nocca, Isabelle Landrieu
Nuclear magnetic resonance (NMR) spectroscopy can be used as an analytical tool to investigate posttranslational modifications of protein. NMR is a valuable tool to map the interaction regions of protein partners. Here, we present protocols that have been developed in the course of our studies of the neuronal Tau protein. Tau is found aggregated in the neurons of Alzheimer's disease patients. Development of the disease is accompanied by increased, abnormal phosphorylation and acetylation of Tau. We have used NMR to investigate how these posttranslational modifications of Tau affect the interactions with its partners...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27966810/discovery-of-a-pcaf-bromodomain-chemical-probe
#20
Moses Moustakim, Peter G K Clark, Laura Trulli, Angel L Fuentes de Arriba, Matthias T Ehebauer, Apirat Chaikuad, Emma J Murphy, Jacqui Mendez-Johnson, Danette Daniels, Chun-Feng D Hou, Yu-Hui Lin, John R Walker, Raymond Hui, Hongbing Yang, Lucy Dorrell, Catherine M Rogers, Octovia P Monteiro, Oleg Fedorov, Kilian V M Huber, Stefan Knapp, Jag Heer, Darren J Dixon, Paul E Brennan
The p300/CBP-associated factor (PCAF) and related GCN5 bromodomain-containing lysine acetyl transferases are members of subfamily I of the bromodomain phylogenetic tree. Iterative cycles of rational inhibitor design and biophysical characterization led to the discovery of the triazolopthalazine-based L-45 (dubbed L-Moses) as the first potent, selective, and cell-active PCAF bromodomain (Brd) inhibitor. Synthesis from readily available (1R,2S)-(-)-norephedrine furnished L-45 in enantiopure form. L-45 was shown to disrupt PCAF-Brd histone H3...
December 14, 2016: Angewandte Chemie
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