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Advances in Protein Chemistry and Structural Biology

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https://www.readbyqxmd.com/read/28215230/preface
#1
EDITORIAL
Rossen Donev
No abstract text is available yet for this article.
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215229/targeting-ikk-and-nf-%C3%AE%C2%BAb-for-therapy
#2
J K Durand, A S Baldwin
In addition to regulating immune responses, the NF-κB family of transcription factors also promotes cellular proliferation and survival. NF-κB and its activating kinase, IKK, have become appealing therapeutic targets because of their critical roles in the progression of many diseases including chronic inflammation and cancer. Here, we discuss the conditions that lead to pathway activation, the effects of constitutive activation, and some of the strategies used to inhibit NF-κB signaling.
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215228/hmgb1-protein-a-therapeutic-target-inside-and-outside-the-cell
#3
I Ugrinova, E Pasheva
High-mobility group box 1 protein (HMGB1) is a nonhistone chromosomal protein discovered more than 30 years ago. It is an abundant nuclear protein that has a dual function-in the nucleus, it binds DNA and participates in practically all DNA-dependent processes serving as an architectural factor. Outside the cell, HMGB1 plays a different role-it acts as an alarmine that activates a large number of HMGB1-"competent" cells and mediates a broad range of physiological and pathological responses. This universality makes it an attractive target for innovative therapeutic strategies in the treatment of various diseases...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215227/elucidating-the-mutational-landscape-in-hepatocyte-nuclear-factor-1%C3%AE-hnf1b-by-computational-approach
#4
P Sneha, C G P Doss
Transcription factors are the major gene-regulatory proteins that recognize specific nucleotide sequences and bind to them. Missense mutations in transcription factors play a significant role in misregulation of gene expression contributing to various diseases and disorders. Understanding their structural and functional impact of the disease-causing mutations becomes prime importance in treating a disease. Commonly associated defect with the mutations of hepatocyte nuclear factor 1 beta (HNF1B) protein, a transcription factor results in maturity-onset diabetes of the young-5 (MODY-5) leading to loss of function...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215226/transcription-factors-as-a-target-for-vaccination-against-ticks-and-mites
#5
O A E Sparagano
Ticks and mites are well-known ectoparasites as potential vectors for numerous bacteria, viruses, and parasites. Many being blood feeders add to physiological deterioration, morbidity, and mortality of their vertebrate hosts. To control them, transcription factors have been identified and studied in their role to sustain such arthropod pests. This paper summarizes some of the work done on those factors involved during blood feeding, reproduction, or when interacting with their pathogens and symbiont populations...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215225/transcription-factors-in-breast-cancer-lessons-from-recent-genomic-analyses-and-therapeutic-implications
#6
E Zacksenhaus, J C Liu, Z Jiang, Y Yao, L Xia, M Shrestha, Y Ben-David
Multiplatform genomic analyses have identified 93 frequently altered genes in breast cancer. Of these, as many as 49 genes are directly or indirectly involved in transcription. These include constitutive and inducible DNA-binding transcription factors (DB-TFs, 13 genes), corepressors/coactivators (14 genes), epigenetic (10), and mediator/splicing/rRNA (3) factors. At least nine additional genes are immediate upstream regulators of transcriptional cofactors. G:profiler analysis reveals that these alterations affect cell cycle, development/differentiation, steroid hormone, and chromatin modification pathways...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215224/the-complex-role-of-the-znf224-transcription-factor-in-cancer
#7
E Cesaro, G Sodaro, G Montano, M Grosso, A Lupo, P Costanzo
ZNF224 is a member of the Kruppel-associated box zinc finger proteins (KRAB-ZFPs) family. It was originally identified as a transcriptional repressor involved in gene-specific silencing through the recruitment of the corepressor KAP1, chromatin-modifying activities, and the arginine methyltransferase PRMT5 on the promoter of its target genes. Recent findings indicate that ZNF224 can behave both as a tumor suppressor or an oncogene in different human cancers. The transcriptional regulatory properties of ZNF224 in these systems appear to be complex and influenced by specific sets of interactors...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215223/the-functional-stability-of-foxp3-and-ror%C3%AE-t-in-treg-and-th17-and-their-therapeutic-applications
#8
J Ren, B Li
The balance of CD4(+)CD25(+)FOXP3(+) regulatory T cells (Tregs) and effector T cells plays a key role in maintaining immune homeostasis, while the imbalance of them is related to many inflammatory diseases in both human and mice. Here we discuss about the plasticity of Tregs and Th17 cells, and the related human diseases resulted from the imbalance of them. Further, we will focus on the mechanisms regulating the plasticity between Tregs and Th17 cells and the potential therapeutic strategies by targeting regulators of the expression and activity of FOXP3 and RORγt or regulators of Treg/Th17 balance in autoimmune diseases, allergy, infection, and cancer...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215222/nf-%C3%AE%C2%BAb-as-a-therapeutic-target-in-inflammatory-associated-bone-diseases
#9
T-H Lin, J Pajarinen, L Lu, A Nabeshima, L A Cordova, Z Yao, S B Goodman
Inflammation is a defensive mechanism for pathogen clearance and maintaining tissue homeostasis. In the skeletal system, inflammation is closely associated with many bone disorders including fractures, nonunions, periprosthetic osteolysis (bone loss around orthopedic implants), and osteoporosis. Acute inflammation is a critical step for proper bone-healing and bone-remodeling processes. On the other hand, chronic inflammation with excessive proinflammatory cytokines disrupts the balance of skeletal homeostasis involving osteoblastic (bone formation) and osteoclastic (bone resorption) activities...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28215221/targeting-chromatin-remodeling-in-inflammation-and-fibrosis
#10
J Yang, B Tian, A R Brasier
Mucosal surfaces of the human body are lined by a contiguous epithelial cell surface that forms a barrier to aerosolized pathogens. Specialized pattern recognition receptors detect the presence of viral pathogens and initiate protective host responses by triggering activation of the nuclear factor κB (NFκB)/RelA transcription factor and formation of a complex with the positive transcription elongation factor (P-TEFb)/cyclin-dependent kinase (CDK)9 and Bromodomain-containing protein 4 (BRD4) epigenetic reader...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057217/preface
#11
EDITORIAL
Rossen Donev
No abstract text is available yet for this article.
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057216/histone-acetylation-and-the-regulation-of-major-histocompatibility-class-ii-gene-expression
#12
K Suzuki, Y Luo
Major histocompatibility complex (MHC) class II molecules are essential for processing and presenting exogenous pathogen antigens to activate CD4(+) T cells. Given their central role in adaptive immune responses, MHC class II genes are tightly regulated in a tissue- and activation-specific manner. The regulation of MHC class II gene expression involves various transcription factors that interact with conserved proximal cis-acting regulatory promoter elements, as well as MHC class II transactivator that interacts with a variety of chromatin remodeling machineries...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057215/the-role-of-epigenetic-regulation-in-transcriptional-memory-in-the-immune-system
#13
A M Woodworth, A F Holloway
The immune system is exquisitely poised to identify, respond to, and eradicate pathogens from the body, as well as to produce a more rapid and augmented response to a subsequent encounter with the pathogen. These cellular responses rely on the highly coordinated and rapid activation of gene expression programs as well as the ability of the cell to retain a memory of the initial gene response. It is clear that chromatin structure and epigenetic mechanisms play a crucial role in determining these gene responses, and in fact the immune system has proved an instructive model for investigating the multifaceted mechanisms through which the chromatin landscape contributes to gene expression programs...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057214/chromatin-remodeling-and-plant-immunity
#14
W Chen, Q Zhu, Y Liu, Q Zhang
Chromatin remodeling, an important facet of the regulation of gene expression in eukaryotes, is performed by two major types of multisubunit complexes, covalent histone- or DNA-modifying complexes, and ATP-dependent chromosome remodeling complexes. Snf2 family DNA-dependent ATPases constitute the catalytic subunits of ATP-dependent chromosome remodeling complexes, which accounts for energy supply during chromatin remodeling. Increasing evidence indicates a critical role of chromatin remodeling in the establishment of long-lasting, even transgenerational immune memory in plants, which is supported by the findings that DNA methylation, histone deacetylation, and histone methylation can prime the promoters of immune-related genes required for disease defense...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057213/a-new-molecular-mechanism-underlying-the-antitumor-effect-of-dna-methylation-inhibitors-via-an-antiviral-immune-response
#15
Y Saito, T Nakaoka, H Saito
Chromatin remodeling mediated by DNA methylation and histone modifications play critical roles in the transcriptional regulation of protein-coding genes, noncoding RNAs such as microRNAs, and endogenous retroviruses (ERVs). Many studies have shown that aberrant DNA methylation and histone modifications are associated with the initiation and progression of various malignancies. Epigenetic silencing of tumor suppressor genes in cancer is generally mediated by DNA hypermethylation of CpG island promoters and histone modifications such as histone deacetylation, methylation of histone H3 lysine 9 (H3K9), and trimethylation of H3K27...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057212/regulation-of-cellular-immune-responses-in-sepsis-by-histone-modifications
#16
W F Carson, S L Kunkel
Severe sepsis, septic shock, and related inflammatory syndromes are driven by the aberrant expression of proinflammatory mediators by immune cells. During the acute phase of sepsis, overexpression of chemokines and cytokines drives physiological stress leading to organ failure and mortality. Following recovery from sepsis, the immune system exhibits profound immunosuppression, evidenced by an inability to produce the same proinflammatory mediators that are required for normal responses to infectious microorganisms...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057211/roles-of-smc-complexes-during-t-lymphocyte-development-and-function
#17
J S Rawlings
T lymphocytes (T cells) comprise a critical component of the immune system charged with diverse functions during an immune response. As a function of maturation in the thymus, T cells become quiescent and remain so until they participate in an immune response in the periphery. Recent work indicates that the control of T cell proliferation is mediated, at least in part, by chromatin architecture. Quiescent T cells possess a condensed chromatin, whereas proliferating T cells have a more open chromatin configuration...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057210/epigenetic-changes-in-chronic-inflammatory-diseases
#18
O Fogel, C Richard-Miceli, J Tost
The number of people diagnosed with chronic inflammatory diseases has increased noteworthy in the last 40 years. Spondyloarthritis (SpA), inflammatory bowel diseases (IBD), and psoriasis are the most frequent chronic inflammatory diseases, resulting from a combination of genetic predisposition and environmental factors. Epigenetic modifications include DNA methylation, histone modifications, and small and long noncoding RNAs. They are influenced by environmental exposure, life-style, and aging and have recently been shown to be altered in many complex diseases including inflammatory diseases...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057209/mechanisms-of-chromatin-remodeling-and-repurposing-during-extracellular-translocation
#19
D S Pisetsky
Chromatin is a highly conserved molecular structure that provides genetic information to regulate cell function. Comprised of DNA, histones and interacting proteins, chromatin is inherently dynamic and subject to remodeling. While usually conceptualized as an intranuclear event, remodeling can also involve extracellular movement. Indeed, chromatin can translocate entirely from the inside to the outside of the cell during cell death processes that include apoptosis, necrosis, and NETosis. During these processes, DNA and proteins can undergo other changes impacting on their activity...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28057208/chromatin-remodeling-in-monocyte-and-macrophage-activation
#20
J L Schultze
Increasing evidence collected during the last years supports the idea that monocyte and macrophage activation is not only associated with transcriptional changes but also changes in the chromatin landscape. Moreover, the introduction of a multidimensional model of macrophage activation allows a more precise description of monocytes and macrophages under homeostatic and pathophysiological conditions. Monocytes and macrophages are masters of integrating microenvironmental signals, thereby reshaping their chromatin landscape and as a consequence their transcriptional and functional programs...
2017: Advances in Protein Chemistry and Structural Biology
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