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Kruppel

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https://www.readbyqxmd.com/read/28541545/kr%C3%A3-ppel-like-factors-compete-for-promoters-and-enhancers-to-fine-tune-transcription
#1
Melissa D Ilsley, Kevin R Gillinder, Graham W Magor, Stephen Huang, Timothy L Bailey, Merlin Crossley, Andrew C Perkins
Krüppel-like factors (KLFs) are a family of 17 transcription factors characterized by a conserved DNA-binding domain of three zinc fingers and a variable N-terminal domain responsible for recruiting cofactors. KLFs have diverse functions in stem cell biology, embryo patterning, and tissue homoeostasis. KLF1 and related family members function as transcriptional activators via recruitment of co-activators such as EP300, whereas KLF3 and related members act as transcriptional repressors via recruitment of C-terminal Binding Proteins...
May 24, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28527011/the-prdm9-krab-domain-is-required-for-meiosis-and-involved-in-protein-interactions
#2
Yukiko Imai, Frédéric Baudat, Miguel Taillepierre, Marcello Stanzione, Attila Toth, Bernard de Massy
PR domain-containing protein 9 (PRDM9) is a major regulator of the localization of meiotic recombination hotspots in the human and mouse genomes. This role involves its DNA-binding domain, which is composed of a tandem array of zinc fingers, and PRDM9-dependent trimethylation of histone H3 at lysine 4. PRDM9 is a member of the PRDM family of transcription regulators, but unlike other family members, it contains a Krüppel-associated box (KRAB)-related domain that is predicted to be a potential protein interaction domain...
May 19, 2017: Chromosoma
https://www.readbyqxmd.com/read/28524086/dietary-green-pea-protects-against-dss-induced-colitis-in-mice-challenged-with-high-fat-diet
#3
Shima Bibi, Luís Fernando de Sousa Moraes, Noelle Lebow, Mei-Jun Zhu
Obesity is a risk factor for developing inflammatory bowel disease. Pea is unique with its high content of dietary fiber, polyphenolics, and glycoproteins, all of which are known to be health beneficial. We aimed to investigate the impact of green pea (GP) supplementation on the susceptibility of high-fat diet (HFD)-fed mice to dextran sulfate sodium (DSS)-induced colitis. Six-week-old C57BL/6J female mice were fed a 45% HFD or HFD supplemented with 10% GP. After 7-week dietary supplementation, colitis was induced by adding 2...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28523428/the-potential-role-of-kr%C3%A3-ppel-like-zinc-finger-protein-glis3-in-genetic-diseases-and-cancers
#4
REVIEW
Chon-Kit Chou, Chin-Ju Tang, Han-Lin Chou, Chun-Yen Liu, Ming-Chong Ng, Yu-Ting Chang, Shyng-Shiou F Yuan, Eing-Mei Tsai, Chien-Chih Chiu
Gli-similar 3 (Glis3) belongs to a Glis subfamily of Krüppel-like zinc-finger transcription factors characterized to regulate a set of downstream targets essential for cellular functions, including pancreatic development, β-cell maturation and maintenance, and insulin production. Examination of the DNA-binding domain of Glis3 reveals that this domain contains a repeated cysteine 2/histidine 2 (Cys2/His2) zinc-finger motif in the central region where the recognized DNA sequence binds. The loss of the production of pancreatic hormones, such as insulin 1 and 2, is linked to the down-regulation of β cells-related genes and promotes the apoptotic death of β cells found in mutant Glis3...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28522536/a-placental-growth-factor-is-silenced-in-mouse-embryos-by-the-zinc-finger-protein-zfp568
#5
Peng Yang, Yixuan Wang, Don Hoang, Matthew Tinkham, Anamika Patel, Ming-An Sun, Gernot Wolf, Mairead Baker, Huan-Chieh Chien, Kuan-Yu Nick Lai, Xiaodong Cheng, Che-Kun James Shen, Todd S Macfarlan
Insulin-like growth factor 2 (IGF2) is the major fetal growth hormone in mammals. We identify zinc finger protein 568 (ZFP568), a member of the rapidly evolving Kruppel-associated box-zinc finger protein (KRAB-ZFP) family linked primarily to silencing of endogenous retroelements, as a direct repressor of a placental-specific Igf2 transcript (designated Igf2-P0) in mice. Loss of Zfp568, which causes gastrulation failure, or mutation of the ZFP568-binding site at the Igf2-P0 promoter causes inappropriate Igf2-P0 activation...
May 19, 2017: Science
https://www.readbyqxmd.com/read/28511337/-research-update-on-the-regulation-of-monocyte-macrophages-by-kr%C3%A3-ppel-like-factors-in-atherosclerosis
#6
L Niu, H L Liu, Z M Yang
No abstract text is available yet for this article.
May 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28508896/obesity-related-cpg-methylation-cg07814318-of-kruppel-like-factor-13-klf13-gene-with-childhood-obesity-and-its-cis-methylation-quantitative-loci
#7
In-Uk Koh, Hye-Ja Lee, Joo-Yeon Hwang, Nak-Hyun Choi, Suman Lee
The cg07814318 hypermethylation of Kruppel-like factor 13 (KLF13) gene has been reported for its relevancy with Body Mass Index (BMI) from European origin. We explored the cg07814318 methylation and its cis-meQTL (cis-methylation quantitative loci) of KLF13 from a childhood obesity cohort. The cg07814318 methylation in blood was significantly associated with obesity and correlated with several obesity-related physical and biochemical traits. We examined the same loci from purified three human cell types (n = 47), i...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28500257/zbtb48-is-both-a-vertebrate-telomere-binding-protein-and-a-transcriptional-activator
#8
Arne Jahn, Grishma Rane, Maciej Paszkowski-Rogacz, Sergi Sayols, Alina Bluhm, Chung-Ting Han, Irena Draškovič, José Arturo Londoño-Vallejo, Alan Prem Kumar, Frank Buchholz, Falk Butter, Dennis Kappei
Telomeres constitute the ends of linear chromosomes and together with the shelterin complex form a structure essential for genome maintenance and stability. In addition to the constitutive binding of the shelterin complex, other direct, yet more transient interactions are mediated by the CST complex and HOT1/HMBOX1, while subtelomeric variant repeats are recognized by NR2C/F transcription factors. Recently, the Kruppel-like zinc finger protein ZBTB48/HKR3/TZAP has been described as a novel telomere-associated factor in the vertebrate lineage...
May 12, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28499925/does-kr%C3%A3-ppel-like-factor-15-play-an-important-role-in-the-left-ventricular-hypertrophy-of-patients-with-type-2-diabetes
#9
Yuguang Zhao, Lu Cai
No abstract text is available yet for this article.
May 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28498400/trim28-knockdown-increases-sensitivity-to-etoposide-by-upregulating-e2f1-in-non-small-cell-lung-cancer
#10
Lei Liu, Lijun Xiao, Xiujun Liang, Long Chen, Luyang Cheng, Lei Zhang, Xiaoguang Wu, Qian Xu, Chunhu Ma
Tripartite motif containing 28 (TRIM28) is a universal corepressor for Kruppel‑associated box zinc finger proteins. In our previous study, it was shown that expression of TRIM28 is upregulated in non‑small cell lung cancer (NSCLC) cell lines and tissues. Here, we demonstrated that the stable silencing of TRIM28 expression by a specific siRNA lentivirus vector increased the sensitivity of NSCLC cells to chemotherapeutic agent etoposide. Combination of TRIM28 siRNA and etoposide significantly inhibited the growth and proliferation of lung adenocarcinoma PAa cells and exerted obvious antitumor effects in nude mice...
May 11, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28483017/expressions-and-functions-of-kr%C3%A3-ppel-like-factor-5-and-tumor-necrosis-factor-receptor-superfamily-member-11a-in-cervical-cancer-tissues-and-cells
#11
Lingya Chang, Dong Ma, Ou Li, Xinyue Wang, Qi Zhang, Lijie Zhang, Xizhao Yan, Huanyu Zheng
Objective To investigate the expressions of Krüppel like factor 5 (KLF5) and tumor necrosis factor receptor superfamily member 11a (TNFRSF11a) in cervical cancer tissues and their effect on proliferation,migration,and invasion of HeLa cells. Methods Microarray technology was used to detect the mRNA expression of gene in cytocine stimulusin cervical tissues,and the result was verified by real-time fluorescence quantitative polymerase chain reaction. The expressions of KLF5 and TNFRSF11a in cervical tissues were detected by double immunofluorescence staining...
April 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28481224/intermittent-glucocorticoid-steroid-dosing-enhances-muscle-repair-without-eliciting-muscle-atrophy
#12
Mattia Quattrocelli, David Y Barefield, James L Warner, Andy H Vo, Michele Hadhazy, Judy U Earley, Alexis R Demonbreun, Elizabeth M McNally
Glucocorticoid steroids such as prednisone are prescribed for chronic muscle conditions such as Duchenne muscular dystrophy, where their use is associated with prolonged ambulation. The positive effects of chronic steroid treatment in muscular dystrophy are paradoxical because these steroids are also known to trigger muscle atrophy. Chronic steroid use usually involves once-daily dosing, although weekly dosing in children has been suggested for its reduced side effects on behavior. In this work, we tested steroid dosing in mice and found that a single pulse of glucocorticoid steroids improved sarcolemmal repair through increased expression of annexins A1 and A6, which mediate myofiber repair...
May 8, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28480051/metformin-suppresses-triple-negative-breast-cancer-stem-cells-by-targeting-klf5-for-degradation
#13
Peiguo Shi, Wenjing Liu, Tala, Haixia Wang, Fubing Li, Hailin Zhang, Yingying Wu, Yanjie Kong, Zhongmei Zhou, Chunyan Wang, Wenlin Chen, Rong Liu, Ceshi Chen
Out of the breast cancer subtypes, triple-negative breast cancer (TNBC) has the poorest prognosis without effective targeted therapies. Metformin, a first-line drug for type 2 diabetes mellitus, was demonstrated to target breast cancer stem cells selectively. However, the efficiency and the mechanism of action of metformin in TNBC are unclear. In this study, we demonstrated that metformin decreased the percentage of TNBC stem cells partially through the downregulation of the expression of the stem cell transcription factor Krüppel-like factor 5 (KLF5) and its downstream target genes, such as Nanog and FGF-BP1, in TNBC cell lines...
2017: Cell Discovery
https://www.readbyqxmd.com/read/28469808/methylation-of-kruppel-like-factor-2-klf2-associates-with-its-expression-and-non-small-cell-lung-cancer-progression
#14
Wenbin Jiang, Xueqing Xu, Shaoli Deng, Jie Luo, Huan Xu, Chao Wang, Tingting Sun, Guoqin Lei, Fengling Zhang, Cheng Yang, Lin Zhou, Feng Wang, Ming Chen
Kruppel-like factor 2 (KLF2) is a putative tumor suppressor gene. This study investigated its role and epigenetic mechanisms in human non-small cell lung cancer (NSCLC) in ex vivo and in vitro. A total of 47 paired NSCLC and normal tissues and six cell lines were analyzed using qRT-PCR for KLF2 expression. KLF2 methylation was assessed using the methylation specific PCR (MSP) or bisulfite sequencing PCR (BSP). Functional KLF2 region 4 (+567 to +906) was confirmed using the dual-luciferase reporter assay, while CCK-8 cell viability and flow cytometric assays were used to assess changes in cell viability, cell cycle distribution, and apoptosis after knockdown or re-expression of KLF2...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28464323/ssm1b-expression-and-function-in-germ-cells-of-adult-mice-and-in-early-embryos
#15
Sarayu Ratnam, Grazyna Bozek, Christopher Payne, Shannon Gallagher, Terence Martin, Ursula Storb
Strain-specific modifier of DNA methylation 1b (Ssm1b) is a Krüppel-associated box (KRAB) zinc finger gene that promotes CpG methylation in the mouse transgene HRD (Heavy chain enhancer, Rearrangement by Deletion). Ssm1b expression and concomitant HRD methylation are also present in the male and female germ cells of adult mice. Ssm1b is expressed in both diploid (2N) and haploid (1N) oocytes, as well as in 1N spermatids and spermatozoa, but not in 2N spermatogonia. Interestingly, Ssm1b mRNA is not detected in any other adult mouse organ examined, although Ssm1-family mRNAs are highly expressed in the heart...
May 2, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28462188/the-role-of-nuclear-factor-i-c-in-tooth-and-bone-development
#16
REVIEW
Song Yi Roh, Joo-Cheol Park
Nuclear factor I-C (NFI-C) plays a pivotal role in various cellular processes such as odontoblast and osteoblast differentiation. Nfic-deficient mice showed abnormal tooth and bone formation. The transplantation of Nfic-expressing mouse bone marrow stromal cells rescued the impaired bone formation in Nfic(-/-) mice. Studies suggest that NFI-C regulate osteogenesis and dentinogenesis in concert with several factors including transforming growth factor-β1, Krüppel-like factor 4, and β-catenin. This review will focus on the function of NFI-C during tooth and bone formation and on the relevant pathways that involve NFI-C...
April 2017: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28456933/genetic-deletion-of-kr%C3%A3-ppel-like-factor-11-aggravates-ischemic-brain-injury
#17
Xuelian Tang, Kai Liu, Milton H Hamblin, Yun Xu, Ke-Jie Yin
Krüppel-like factors (KLFs) belong to the zinc finger family of transcription factors, and their function in the CNS is largely unexplored. KLF11 is a member of the KLF family, and we have previously demonstrated that peroxisome proliferator-activated receptor gamma-mediated cerebral protection during ischemic insults needs recruitment of KLF11 as its critical coactivator. Here, we sought to determine the role of KLF11 itself in cerebrovascular function and the pathogenesis of ischemic stroke. Transient middle cerebral artery occlusion (MCAO) was performed in KLF11 knockout and wild-type control mice, and brain infarction was analyzed by TTC staining...
April 29, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28454449/bioinformatics-analysis-of-the-prognostic-value-of-tripartite-motif-28-in-breast-cancer
#18
Ling Hao, Jun Leng, Ruijing Xiao, Tembo Kingsley, Xinran Li, Zhenbo Tu, Xiangyong Yang, Xinzhou Deng, Meng Xiong, Jie Xiong, Qiuping Zhang
Tripartite motif containing 28 (TRIM28) is a transcriptional regulator acting as an essential corepressor for Krüppel-associated box zinc finger domain-containing proteins in multiple tissue and cell types. An increasing number of studies have investigated the function of TRIM28; however, its prognostic value in breast cancer (BC) remains unclear. In the present study, the expression of TRIM28 was identified to be significantly higher in cancerous compared with healthy tissue samples. Furthermore, it was demonstrated that TRIM28 expression was significantly correlated with several clinicopathological characteristics of patients with BC, such as p53 mutation, tumor recurrence and Elston grade of the tumor...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454392/klf7-overexpression-in-human-oral-squamous-cell-carcinoma-promotes-migration-and-epithelial-mesenchymal-transition
#19
Xiaojun Ding, Xinhao Wang, Yiming Gong, Hong Ruan, Yang Sun, Youcheng Yu
Krüppel-like factor 7 (KLF7) is a member of the KLF family of zinc finger transcription factors, and was the first KLF cloned using complementary DNA and polymerase chain reaction (PCR) techniques with human vascular endothelial cells as a template. In addition, KLF7 is known as the ubiquitous Krüppel-like factor, as it is widely expressed in numerous human tissues at low levels. In the present study, the function of KLF7 in migration and epithelial-mesenchymal transition (EMT), which are associated with tumor progression, was investigated in human oral squamous cell carcinoma (OSCC) cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454121/kr%C3%A3-ppel-like-factor-17-inhibits-urokinase-plasminogen-activator-gene-expression-to-suppress-cell-invasion-through-the-src-p38-mapk-signaling-pathway-in-human-lung-adenocarcionma
#20
Xing-Dong Cai, Li Che, Jia-Xin Lin, Shuai Huang, Jiong Li, Xiao-Yan Liu, Xing-Fei Pan, Qin-Qin Wang, Li Chen, Ming-Juan Lin, Zhi-Hong Huang, Hong-Ming Ma, Yi Wu, Sheng-Ming Liu, Yan-Bin Zhou
Krüppel-like factor 17 (KLF17) has been reported to be involved in invasion and metastasis suppression in lung cancer, but the molecular mechanisms underlying the anti-invasion and anti-metastasis roles of KLF17 in lung cancer are not fully illustrated. Here, we showed that KLF17 inhibited the invasion of A549 and H322 cells; the anti-invasion effect of KLF17 was associated with the suppression of urokinase plasminogen activator (uPA/PLAU) expression. KLF17 can bind with the promoter of uPA and inhibit its expression...
April 10, 2017: Oncotarget
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