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NF-KB Transcriptional regulation

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https://www.readbyqxmd.com/read/28535417/ezrin-nf-kb-activation-regulates-epithelial-mesenchymal-transition-induced-by-egf-and-promotes-metastasis-of-colorectal-cancer
#1
Yingru Li, Zhaoyu Lin, Bin Chen, Shuang Chen, Zhipeng Jiang, Taicheng Zhou, Zehui Hou, Youyuan Wang
There is growing evidence that epithelial mesenchymal-transition (EMT) plays significant roles in terms of tumor metastasis. There are a lot of cytokines inducing EMT of tumor cells, EGF is one of the important cytokines.Ezrin is a connexin between the cytoskeleton and the cell membrane, which is closely related to the morphological movement and metastasis of tumor cells.EGF can activate Ezrin and affects cell motility. In recent years, many studies have shown that NF-kB acts as an important transcription factor, involving in the process of EMT...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28487955/regulation-of-mrna-gene-expression-of-members-of-the-nf-%C3%AE%C2%BAb-transcription-factor-gene-family-by-angiotensin-ii-and-relaxin-2-in-normal-and-cancer-prostate-cell-lines
#2
Kamila Domińska, Karolina Kowalska, Zuzanna Elżbieta Matysiak, Elżbieta Płuciennik, Tomasz Ochędalski, Agnieszka Wanda Piastowska-Ciesielska
An increasing number of researchers are focusing on the influence of local peptide hormones such as angiotensin II (Ang II) and relaxin 2 (RLN2) in the regulation of inflammation and carcinogenesis. The interaction between the renin‑angiotensin system (RAS) and relaxin family peptide system (RFPS) is known to influence the proliferation, adhesion and migration of normal and cancer prostate cell lines. The aim of the present study was to evaluate changes in the expression of nuclear factor‑κB subunit 1 (NFKB1), nuclear factor‑κB subunit 2 (NFKB2), REL proto‑oncogene nuclear factor‑κB p65 subunit (REL), RELA proto‑oncogene nuclear factor‑κB subunit (RELA) and RELB proto‑oncogene nuclear factor‑κB subunit (RELB) mRNA caused by Ang II and RLN2...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28477068/the-role-of-mir-130a-in-cancer
#3
REVIEW
He-da Zhang, Lin-Hong Jiang, Da-Wei Sun, Jian Li, Zhen-Ling Ji
MicroRNAs (miRs) are short and highly conserved non-coding RNAs molecules consisting of 18-25 nucleotides that regulate gene expression at post-transcriptional level by direct binding to complementary binding sites within the 3'untranslated region (3'UTR) of target mRNAs. New evidences have demonstrated that miRNAs play an important role in diverse physiological processes, including regulating cell growth, apoptosis, metastasis, drug resistance, and invasion. In chromosomes 11 and 22 of the miR-130 family, paralogous miRNA sequences, miR-130a and miR-130b are situated, respectively...
May 5, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28461777/js-iii-49-a-hydroquinone-derivative-exerts-anti-inflammatory-activity-by-targeting-akt-and-p38
#4
Young-Su Yi, Mi-Yeon Kim, Jae Youl Cho
Since previous studies have reported that hydroquinone (HQ) exerted immunosuppressive and anti-inflammatory activity, various HQ derivatives have been synthesized and their biological activities investigated. In this study, we explored the anti-inflammatory activity of JS-III-49, a novel HQ derivative, in macrophage-mediated inflammatory responses. JS-III-49 suppressed the production of the inflammatory mediators nitric oxide (NO) and prostaglandin E2 (PGE2) and down-regulated the mRNA expression of the inflammatory enzymes cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) as well as the expression of the pro-inflammatory cytokines interleukin-6 (IL-6) and IL-1b without cytotoxicity in LPS-stimulated RAW264...
May 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28455674/androgens-and-hypertension-in-men-and-women-a-unifying-view
#5
REVIEW
Costanzo Moretti, Giulia Lanzolla, Marta Moretti, Lucio Gnessi, Enrico Carmina
PURPOSE OF REVIEW: This review was designed to revaluate the androgen role on the mechanisms of hypertension and cardiovascular risks in both men and women. Sex steroids are involved in the regulation of blood pressure, but pathophysiological mechanism is not well understood. Androgens have an important effect on metabolism, adipose and endothelial cell function, and cardiovascular risk in both men and women. A focal point in this contest is represented by the possible gender-specific regulation of different tissues and in particular of the adipose cell...
May 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28446640/ref-1-ape1-as-transcriptional-regulator-and-novel-therapeutic-target-in-pediatric-t-cell-leukemia
#6
Jixin Ding, Melissa L Fishel, April M Reed, Erin McAdams, Magdalena Czader, Angelo A Cardoso, Mark R Kelley
The increasing characterization of childhood acute lymphoblastic leukemia (ALL) has led to the identification of multiple molecular targets, but have yet to translate into more effective targeted therapies, particularly for high-risk, relapsed T-cell ALL. Searching for master regulators controlling multiple signaling pathways in T-ALL, we investigated the multi-functional protein redox factor-1 (Ref-1/APE1), which acts as a signaling "node" by exerting redox regulatory control of transcription factors important in leukemia...
April 26, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28425867/chemokines-and-relevant-micrornas-in-the-atherogenic-process
#7
Dimitry A Chistiakov, Alexander N Orekhov, Yuri V Bobryshev
Chemokines play a significant role in initial and advanced steps of atherogenesis. In early steps, chemokines control the adhesion of leukocytes to endothelial cells (ECs) followed by transmigration of monocytes and their deposition in the intima where they differentiate to proinflammatory macrophages. Except proinflammatory activity, chemokines are responsible for homeostasis and homing of progenitor cells. Recently, microRNAs (miRs) were found to control expression and activity of chemokines in ECs, vascular smooth muscle cells (VSMCs), and macrophages at different steps of atherogenesis...
April 19, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28412202/the-immunosuppressive-effects-of-a-novel-recombinant-lipq-rv2485c-protein-of-mycobacterium-tuberculosis-on-human-macrophage-cell-lines
#8
Anjani Kumar, Manisha, Gurkamaljit Kaur Sangha, Anju Shrivastava, Jagdeep Kaur
Mycobacterium tuberculosis (MTB), an intracellular pathogen, still represents a major global health challenge. A number of mycobacterial macromolecules have been shown to target biological processes within host macrophages; however, the exact mechanism for the majority of these host pathogen interactions is still poorly understood. Moreover, the lipid metabolic pathway is one of the most important physiologic pathways that plays a vital role in the survival and infection of Mycobacterium tuberculosis. In present study, we investigated the effect of rLipQ from Mycobacterium tuberculosis H37Rv on macrophage functions in vitro...
April 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28361855/parthenolide-reduces-gene-transcription-of-prosurvival-mediators-in-u937-cells
#9
S Mohammadi, M Zahedpanah, M Nikbakht, M Shaiegan, Ghaffari Hamidollah, M Nikugoftar, B Rahmani, D Hamedi Asl
In acute myeloid leukemia (AML) the functional abnormalities of osteopontin (OPN), NF-kB, PI3K/AKT/mTOR/PTEN pathway or β-catenin have been considered. AIM: To analyze the response of U937 cells to parthenolide (PTL) through the involvement of expression of OPN protein, RelB, AKT1, mTOR, PTEN and β-catenin genes. MATERIALS AND METHODS: The U937 cells were treated with PTL at concentrations of 4 μM (IC25) or 6 μM (IC50) and with OPN siRNA for MTT assay and colony forming assay...
March 2017: Experimental Oncology
https://www.readbyqxmd.com/read/28348568/a-bacterial-artificial-chromosome-reporter-system-for-expression-of-the-human-foxp3-gene-in-mouse-regulatory-t-cells
#10
Masato Tsuda, Yukiko Tone, Chihiro Ogawa, Yoshiko Nagaoka, Makoto Katsumata, Andra Necula, Duncan Howie, Esteban Masuda, Herman Waldmann, Masahide Tone
The transcription factor FOXP3 plays key roles in the development and function of regulatory T cells (Treg) capable of preventing and correcting immunopathology. There has been much interest in exploiting Treg as adoptive cell therapy in man, but issues of lack of nominal antigen-specificity and stability of FoxP3 expression in the face of pro-inflammatory cytokines have been a concern. In order to enable fundamental studies of human FOXP3 (hFOXP3) gene regulation and to provide preclinical tools to guide the selection of drugs that might modulate hFOXP3 expression for therapeutic purposes, we generated hFOXP3/AmCyan bacterial artificial chromosome (BAC) transgenic mice and transfectants, wherein hFOXP3 expression was read out as AmCyan expression...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28326639/mesenchymal-stem-cells-attenuate-adriamycin-induced-nephropathy-by-diminishing-oxidative-stress-and-inflammation-via-downregulation-of-the-nf-kb
#11
In-Hwan Song, Kyong-Jin Jung, Tae-Jin Lee, Joo-Young Kim, Eon-Gi Sung, Young Chul Bae, Young Hoon Park
AIM: This study aimed to evaluate the molecular mechanism mitigating progress of chronic nephropathy by mesenchymal stem cells. METHODS: Rats were divided into normal control (Normal), ADR + vehicle (CON), and ADR + MSC (MSC) groups. Nephropathy was induced by ADR (4 mg/kg) and MSCs (2 × 10(6) ) were injected. Rats were sacrificed 1 or 6 weeks after ADR injection. NF-kB, MAPKs, inflammation, oxidative stress, profibrotic molecules, and nephrin expression were evaluated...
March 21, 2017: Nephrology
https://www.readbyqxmd.com/read/28321433/transcription-factor-oscillations-in-neural-stem-cells-implications-for-accurate-control-of-gene-expression
#12
REVIEW
Pascal Bielefeld, Marijn Schouten, Paul J Lucassen, Carlos P Fitzsimons
Naturally occurring oscillations in glucocorticoids induce a cyclic activation of the glucocorticoid receptor (GR), a well-characterized ligand-activated transcription factor. These cycles of GR activation/deactivation result in rapid GR exchange at genomic response elements and GR recycling through the chaperone machinery, ultimately generating pulses of GR-mediated transcriptional activity of target genes. In a recent article we have discussed the implications of circadian and high-frequency (ultradian) glucocorticoid oscillations for the dynamic control of gene expression in hippocampal neural stem/progenitor cells (NSPCs) (Fitzsimons et al...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28316375/torilin-inhibits-inflammation-by-limiting-tak1-mediated-map-kinase-and-nf-%C3%AE%C2%BAb-activation
#13
Mehari Endale, Tae-Hwan Kim, Yi-Seong Kwak, Na-Mi Kim, Seung-Hyung Kim, Jae Youl Cho, Bong-Sik Yun, Man-Hee Rhee
Torilin, a sesquiterpene isolated from the fruits of Torilis japonica, has shown antimicrobial, anticancer, and anti-inflammatory properties. However, data on the mechanism of torilin action against inflammation is limited. This study aimed at determining the anti-inflammatory property of torilin in LPS-induced inflammation using in vitro model of inflammation. We examined torilin's effect on expression levels of inflammatory mediators and cytokines in LPS-stimulated RAW 264.7 macrophages. The involvement of NF-kB and AP-1, MAP kinases, and adaptor proteins were assessed...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28302063/epigenetic-and-genetic-alterations-and-their-influence-on-gene-regulation-in-chronic-lymphocytic-leukemia
#14
Di Huang, Ivan Ovcharenko
BACKGROUND: To understand the changes of gene regulation in carcinogenesis, we explored signals of DNA methylation - a stable epigenetic mark of gene regulatory elements - and designed a computational model to profile loss and gain of regulatory elements (REs) during carcinogenesis. We also utilized sequencing data to analyze the allele frequency of single nucleotide polymorphisms (SNPs) and detected the cancer-associated SNPs, i.e., the SNPs displaying the significant allele frequency difference between cancer and normal samples...
March 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28296881/transcriptomic-responses-to-environmental-temperature-by-turtles-with-temperature-dependent-and-genotypic-sex-determination-assessed-by-rnaseq-inform-the-genetic-architecture-of-embryonic-gonadal-development
#15
Srihari Radhakrishnan, Robert Literman, Jennifer Neuwald, Andrew Severin, Nicole Valenzuela
Vertebrate sexual fate is decided primarily by the individual's genotype (GSD), by the environmental temperature during development (TSD), or both. Turtles exhibit TSD and GSD, making them ideal to study the evolution of sex determination. Here we analyze temperature-specific gonadal transcriptomes (RNA-sequencing validated by qPCR) of painted turtles (Chrysemys picta TSD) before and during the thermosensitive period, and at equivalent stages in soft-shell turtles (Apalone spinifera-GSD), to test whether TSD's and GSD's transcriptional circuitry is identical but deployed differently between mechanisms...
2017: PloS One
https://www.readbyqxmd.com/read/28293399/up-regulation-of-tlr2-and-tlr4-in-high-mobility-group-box1-stimulated-macrophages-in-pulpitis-patients
#16
Javad Mahmoudi, Babak Sabermarouf, Behzad Baradaran, Leila Sadat-Hatamnezhad, Siamak Sandoghchian Shotorbani
OBJECTIVES: High Mobility Group Box1 (HMGB1) is a nonhistone, DNA-binding protein that serves a crucial role in regulating gene transcription and is involved in a variety of proinflammatory, extracellular activities. The aim of this study was to explore whether HMGB1 stimulation can up-regulate the expression of Toll-like Receptor 2 (TLR2) and Toll-like Receptor 4 (TLR4) on macrophages from pulpitis and to clarify the subsequent events involving Th17 cells and Th17 cell-associated cytokine changes...
February 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28289734/regulatory-mechanisms-of-hsp90
#17
Chrisostomos Prodromou
The ability of Hsp90 to activate a disparate clientele implicates this chaperone in diverse biological processes. To accommodate such varied roles, Hsp90 requires a variety of regulatory mechanisms that are coordinated in order to modulate its activity appropriately. Amongst these, the master-regulator heat shock factor 1 (HSF1) is critically important in upregulating Hsp90 during stress, but is also responsible, through interaction with specific transcription factors (such as STAT1 and Strap/p300) for the integration of a variety of biological signals that ultimately modulate Hsp90 expression...
January 30, 2017: Biochemistry & Molecular Biology Journal
https://www.readbyqxmd.com/read/28270653/rip-1-c-flipl-induce-hepatic-cancer-cell-apoptosis-through-regulating-tumor-necrosis-factor-related-apoptosis-inducing-ligand-trail
#18
Jichun Sun, Xiao Yu, Changfa Wang, Can Yu, Zhiqiang Li, Wanpin Nie, Xundi Xu, Xiongying Miao, Xiaoxin Jin
BACKGROUND Almost all hepatic cancer cells have resistance to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced apoptosis. c-FLIPL and RIP-1 are apoptotic negative regulatory factors. This study investigated the role of c-FLIPL and RIP-1 in hepatic cancer cell resistance to TRAIL-induced apoptosis. MATERIAL AND METHODS HepG2 cells were treated by TRAIL, RIP-1 siRNA, and/or BY11-7082. Cell viability was detected by MTT assay. Cell apoptosis was tested by flow cytometry. DISC component proteins, RIP-1, and p-p65 were measured by Western blot...
March 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28236612/determining-the-effects-of-geraniol-on-liver-regeneration-via-the-nuclear-factor-kb-pathway-after-partial-hepatectomy
#19
Emre Ceyhan, Mediha Canbek
Context • Nuclear factor kB (NF-κB) is a dimeric transcription factor that is involved in the regulation of regenerative and apoptosic genes and plays a key role in liver regeneration after a partial hepatectomy (PH). Complementary medicine is used to treat various diseases and can be obtained from a large number of plants that are found in nature. One such plant is geraniol, and no studies have yet occurred assessing its in vivo effects on liver regeneration. Objective • The current study intended to assess the effects of geraniol on liver regeneration after a 70% PH in rats...
February 27, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28228401/wolf-hirschhorn-syndrome-candidate-1-like-1-epigenetically-regulates-nephrin-gene-expression
#20
Yugo Ito, Kan Katayama, Yukino Nishibori, Yoshihiro Akimoto, Akihiko Kudo, Ryota Kurayama, Ichiro Hada, Shohei Takahashi, Toru Kimura, Toshiyuki Fukutomi, Tomohisa Katada, Junichi Suehiro, Olga Beltcheva, Karl Tryggvason, Kunimasa Yan
Altered expression of nephrin underlies the pathophysiology of proteinuria in both congenital and acquired nephrotic syndrome. However, the epigenetic mechanisms of nephrin gene regulation remain elusive. Here, we show that Wolf-Hirschhorn syndrome candidate 1-like 1 long form (WHSC1L1-L) is a novel epigenetic modifier of nephrin gene regulation. WHSC1L1-L was associated with histone H3K4 and H3K36 in human embryonic kidney cells. WHSC1L1-L gene was expressed in the podocytes and functional protein product was detected in these cells...
February 22, 2017: American Journal of Physiology. Renal Physiology
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