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transcription factor 7-like 2

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https://www.readbyqxmd.com/read/28801292/-oxidized-low-density-lipoprotein-modulates-differentiation-of-murine-memory-cd8-t-cell-subpopulations
#1
Hua Zheng, Ze-Hang Lin, Yan-Mei Zhang, Chen-Fei Zhou, Xuan Liu, Sha Wu
OBJECTIVE: To investigate effect of oxidized low-density lipoprotein (ox-LDL) on memory CD8(+) T cell subpopulation differentiation in mice with autoimmune diabetes. METHODS: Cultured splenic CD8(+) T cells from pre-diabetic NOD mice isolated with magnetic beads were treated with 30 µg/mL ox-LDL and 10 U/mL interleukin-2 (IL-2) for 24 h and the control cells were treated with IL-2 only. Flow cytometry was used to determine the percentage of splenic CD8(+)IFN-γ(+) T cells, expressions of CD8, CD44 and CD62L on the T cells, and the activation of T cell factor-1 (TCF-1) and STAT-3...
August 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28795454/the-tcf7l2-pgc1%C3%AE-axis-connects-mitochondrial-biogenesis-and-metabolic-shift-with-stem-cell-commitment-to-hepatic-differentiation
#2
Anaïs Wanet, Marino Caruso, Jean-Baka Domelevo Entfellner, Mehdi Najar, Antoine Fattaccioli, Catherine Demazy, Jonathan Evraerts, Hoda El-Kehdy, Guillaume Pourcher, Etienne Sokal, Thierry Arnould, Nicki Tiffin, Mustapha Najimi, Patricia Renard
Increasing evidence supports that modifications in the mitochondrial content, oxidative phosphorylation (OXPHOS) activity, and cell metabolism influence the fate of stem cells. However, the regulators involved in the crosstalk between mitochondria and stem cell fate remain poorly characterized. Here, we identified a transcriptional regulatory axis, composed of TCF7L2 (transcription factor 7 like 2, a downstream effector of the Wnt/β-catenin pathway, repressed during differentiation) and PGC-1α (peroxisome proliferator-activated receptor gamma coactivator 1 alpha, the master regulator of mitochondrial biogenesis, induced during differentiation), coupling the loss of pluripotency and early commitment to differentiation, to the initiation of mitochondrial biogenesis and metabolic shift toward OXPHOS...
August 10, 2017: Stem Cells
https://www.readbyqxmd.com/read/28794035/crystal-structure-of-the-dna-binding-domain-of-human-herpesvirus-6a-immediate-early-protein-2
#3
Mitsuhiro Nishimura, Junjie Wang, Aika Wakata, Kento Sakamoto, Yasuko Mori
Immediate early proteins of human herpesvirus 6A (HHV-6A) are expressed at the outset of lytic infection, and thereby regulate viral gene expression. Immediate early protein 2 (IE2) of HHV-6A is a trans-activator that drives a variety of promoters. The C-terminal region of HHV-6A IE2 is shared among IE2 homologs in beta-herpesviruses, and is involved in dimerization, DNA binding, and transcription factor binding. In this study, the structure of the C-terminal domain (IE2-CTD) was determined by X-ray crystallography at a resolution of 2...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28791367/molecular-mechanisms-of-breast-cancer-metastasis-by-gene-expression-profile-analysis
#4
Tianying Zheng, Aijun Wang, Dongyan Hu, Yonggang Wang
Metastasis is the main cause of breast cancer‑related mortalities. The present study aimed to uncover the relevant molecular mechanisms of breast cancer metastasis and to explore potential biomarkers that may be used for prognosis. Expression profile microarray data GSE8977, which contained 22 stroma samples (15 were from normal breast and 7 were from invasive ductal carcinoma tumor samples), were obtained from the Gene Expression Omnibus database. Following data preprocessing, differentially expressed genes (DEGs) were selected based on analyses conducted using the linear models for microarray analysis package from R and Bioconductor software...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28783759/senescence-as-a-novel-mechanism-involved-in-%C3%AE-adrenergic-receptor-mediated-cardiac-hypertrophy
#5
Rongrong Sun, Baoling Zhu, Kai Xiong, Yan Sun, Dandan Shi, Li Chen, Youyi Zhang, Zijian Li, Lixiang Xue
Pathological cardiac hypertrophy used to be elucidated by biomechanical, stretch-sensitive or neurohumoral mechanisms. However, a series of hints have indicated that hypertrophy process simulates senescence program. However, further evidence need to be pursued. To verify this hypothesis and examine whether cardiac senescence is a novel mechanism of hypertrophy induced by isoproterenol, 2-month-old male Sprague Dawley rats were subjected to isoproterenol infusion (0.25mg/kg/day) for 7 days by subcutaneous injection)...
2017: PloS One
https://www.readbyqxmd.com/read/28782620/anti-inflammatory-effect-of-cortex-eucommiae-via-modulation-of-the-toll-like-receptor-4-pathway-in-lipopolysaccharide-stimulated-raw-264-7-macrophages
#6
Wonil Koh, Joon-Shik Shin, Jinho Lee, In-Hee Lee, Sang Kook Lee, In-Hyuk Ha, Hwa-Jin Chung
ETHNOPHARMOCOLOGICAL RELEVANCE: Cortex Eucommiae (CE), the bark of Eucommia ulmoides Oliv., has been traditionally used for its kidney-tonifying and bone- and tendon-enhancing properties in Korea, China, and Japan. CE has been historically prescribed for inflammatory conditions such as arthritis of the knee and ankle. AIM OF THE STUDY: Although CE has recently been shown to suppress inflammation in scientific studies, whether this effect involves modulation of the toll-like receptor 4 (TLR-4) pathway is currently unknown...
August 3, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28747866/polysaccharide-from-wheat-bran-induces-cytokine-expression-via-the-toll-like-receptor-4-mediated-p38-mapk-signaling-pathway-and-prevents-cyclophosphamide-induced-immunosuppression-in-mice
#7
Ting Shen, Gongcheng Wang, Long You, Liang Zhang, Haiwei Ren, Weicheng Hu, Qian Qiang, Xinfeng Wang, Lilian Ji, Zhengzhong Gu, Xiangxiang Zhao
Wheat bran-derived polysaccharides have attracted particular attention due to their immunomodulatory effects. However, the molecular mechanisms underlying their functions are poorly understood. The current study was designed to examine the effect of wheat bran polysaccharide (WBP) on RAW 264.7 cells and the underlying signaling pathways, which have not been explored. In addition, we also investigated the immuno-enhancement effects of WBP on cyclophosphamide (CTX)-induced immunosuppression in mice. WBP significantly increased the concentrations of intracellular nitric oxide (NO) and cytokines such as prostaglandin E2 (PGE2) and tumor necrosis factor-α (TNF-α) in RAW 264...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28731172/comparison-of-the-neuronal-differentiation-abilities-of-bone-marrow%C3%A2-derived-and-adipose-tissue%C3%A2-derived-mesenchymal-stem-cells
#8
Yani Zheng, Chao Huang, Fang Liu, Haiyan Lin, Xiangqun Yang, Zhiying Zhang
Bone marrow‑derived mesenchymal stem cells (BMSCs) and adipose tissue‑derived mesenchymal stem cells (ADSCs) are able to differentiate into neuron‑like cells when exposed to small molecule compounds, however the specific differences in their neuronal differentiation abilities remain to be fully elucidated. The present study aimed to compare the neuronal differentiation abilities of BMSCs and ADSCs. BMSCs and ADSCs from the same Sprague Dawley rats were isolated and cultured for use. The proliferation capacity was revealed using a cell counting method...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28699988/type-2-diabetes-associated-genetic-variants-of-fto-lepr-pparg-and-tcf7l2-in-gestational-diabetes-in-a-brazilian-population
#9
Mauren Isfer Anghebem-Oliveira, Bruna Rodrigues Martins, Dayane Alberton, Edneia Amancio de Souza Ramos, Geraldo Picheth, Fabiane Gomes de Moraes Rego
Objective: Gestational diabetes mellitus (GDM) is a metabolic disorder that shares pathophysiologic features with type 2 diabetes mellitus. The aim of this study was to investigate the association of the polymorphisms fat mass and obesity-associated (FTO) rs1421085, leptin receptor (LEPR) rs1137100, rs1137101, peroxisome proliferator-activated receptor gamma (PPARg) rs1801282, and transcription factor 7-like 2 (TCF7L2) rs7901695 with GDM. Subjects and methods: 252 unrelated Euro-Brazilian pregnant women were classified into two groups according to the 2015 criteria of the American and Brazilian Diabetes Association: healthy pregnant women (n = 125) and pregnant women with GDM (n = 127), matched by age...
May 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28690192/suppression-of-osteogenic-differentiation-in-mesenchymal-stem-cells-from-patients-with-ossification-of-the-posterior-longitudinal-ligament-by-a-histamine-2-receptor-antagonist
#10
Xizhe Liu, Gentaro Kumagai, Kanichiro Wada, Toshihiro Tanaka, Taku Fujita, Ayako Sasaki, Ken-Ichi Furukawa, Yasuyuki Ishibashi
Mesenchymal stem cells (MSCs) in ossification of the posterior longitudinal ligament (OPLL) patients have a high propensity toward osteogenesis. Histamine receptor H2 (H2R) antagonists (H2 blockers) like famotidine decrease ossification in patients, by an unclear mechanism. To confirm that MSCs express H2R and to clarify how H2 blockers suppress osteogenic differentiation, we used spinal-ligament MSCs from patients with OPLL or with cervical spondylotic myelopathy (CSM) (control). The MSCs were treated with 10, 30, or 100nM famotidine for 7 or 21 days...
September 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28688862/programmable-cells-of-monocytic-origin-as-a-source-of-osteochondroprogenitors-effect-of-growth-factors-on-osteogenic-differentiation
#11
Yahya Açil, Björn Möller, Jörg Wiltfang, Fred Fändrich, Hendrik Ungefroren
We have demonstrated previously that peripheral blood monocytes can be converted in vitro to a multipotent stem cell-like cell termed programmable cell of monocytic origin (PCMO) and subsequently into cells with chondrocyte-like phenotype. Here, we investigated whether PCMO could also be differentiated into osteoblast-like cells using growth factors with known osteoinductive potency. Following stimulation with BMP-2, BMP-7, IGF-1 or TGF-β1 for 7 and 14 days, PCMOs were analyzed for mRNA expression of collagen types I and V, alkaline phosphatase, osteocalcin, runt-related transcription factor-2 (Runx2) and Osterix (Osx) by quantitative RT-PCR (qPCR) and the levels of collagen I in culture supernatants by ELISA...
June 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28678890/platinum-sensitive-2-like-impacts-growth-root-morphology-seed-set-and-stress-responses
#12
Amr R A Kataya, Maria T Creighton, Toga P Napitupulu, Christine Sætre, Behzad Heidari, Peter Ruoff, Cathrine Lillo
Eukaryotic protein phosphatase 4 (PP4) is a PP2A-type protein phosphatase that is part of a conserved complex with regulatory factors PSY2 and PP4R2. Various lines of Arabidopsis thaliana with mutated PP4 subunit genes were constructed to study the so far completely unknown functions of PP4 in plants. Mutants with knocked out putative functional homolog of the PSY2 LIKE (PSY2L) gene were dwarf and bushy, while plants with knocked out PP4R2 LIKE (PP4R2L) looked very similar to WT. The psy2l seedlings had short roots with disorganized morphology and impaired meristem...
2017: PloS One
https://www.readbyqxmd.com/read/28673717/distinctive-features-of-phox2b-expressing-neurons-in-the-rat-reticular-formation-dorsal-to-the-trigeminal-motor-nucleus
#13
Kouta Nagoya, Shiro Nakamura, Keiko Ikeda, Hiroshi Onimaru, Atsushi Yoshida, Kiyomi Nakayama, Ayako Mochizuki, Masaaki Kiyomoto, Fumihiko Sato, Kiyoshi Kawakami, Koji Takahashi, Tomio Inoue
Phox2b encodes a paired-like homeodomain-containing transcription factor essential for development of the autonomic nervous system. Phox2b-expressing (Phox2b(+)) neurons are present in the reticular formation dorsal to the trigeminal motor nucleus (RdV) as well as the nucleus of the solitary tract and parafacial respiratory group. However, the nature of Phox2b(+) RdV neurons is still unclear. We investigated the physiological and morphological properties of Phox2b(+) RdV neurons using postnatal day 2-7 transgenic rats expressing yellow fluorescent protein under the control of Phox2b...
July 1, 2017: Neuroscience
https://www.readbyqxmd.com/read/28664506/prevalence-and-spectrum-of-germline-rare-variants-in-brca1-2-and-palb2-among-breast-cancer-cases-in-sarawak-malaysia
#14
Xiaohong R Yang, Beena C R Devi, Hyuna Sung, Jennifer Guida, Eliseos J Mucaki, Yanzi Xiao, Ana Best, Lisa Garland, Yi Xie, Nan Hu, Maria Rodriguez-Herrera, Chaoyu Wang, Kristine Jones, Wen Luo, Belynda Hicks, Tieng Swee Tang, Karobi Moitra, Peter K Rogan, Michael Dean
PURPOSE: To characterize the spectrum of germline mutations in BRCA1, BRCA2, and PALB2 in population-based unselected breast cancer cases in an Asian population. METHODS: Germline DNA from 467 breast cancer patients in Sarawak General Hospital, Malaysia, where 93% of the breast cancer patients in Sarawak are treated, was sequenced for the entire coding region of BRCA1; BRCA2; PALB2; Exons 6, 7, and 8 of TP53; and Exons 7 and 8 of PTEN. Pathogenic variants included known pathogenic variants in ClinVar, loss of function variants, and variants that disrupt splice site...
June 29, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28663238/remarkable-evolutionary-conservation-of-anti-obesity-adipose-wdtc1-homologs-in-animals-and-plants
#15
Eric Ducos, Valentin Vergès, Thomas Dugé de Bernonville, Nathalie Blanc, Nathalie Giglioli-Guivarc'h, Christelle Dutilleul
ASG2 (Altered Seed Germination 2) is a prenylated protein in Arabidopsis thaliana that participates to abscisic acid signaling and is proposed to act as a substrate adaptor for the DDB1-CUL4 E3 ubiquitin ligase complex. ASG2 harbors WD40 and TetratricoPeptide Repeat (TPR) domains, and resembles the well-conserved animal gene called ADP (anti-obesity factor ADIPOSE) in fly and WDTC1 (WD40 and TPR 1) in humans. Loss of function of WDTC1 results in an increase in adipocytes, fat accumulation and obesity. Anti-adipogenic functions of WDTC1 involve regulation of fat-related gene transcription, notably through its binding to histone deacetylases...
June 29, 2017: Genetics
https://www.readbyqxmd.com/read/28660626/hepatocellular-malignant-neoplasm-nos-a-clinicopathologic-study-of-11-cases-from-a-single-institution
#16
Shengmei Zhou, Rajkumar Venkatramani, Shveta Gupta, Kasper Wang, Larry Wang, Leo Mascarenhas
AIMS: The primary aim of this study is to characterize hepatocellular malignant neoplasm, NOS (HEMNOS), a new provisional entity describing a subset of paediatric hepatocellular tumours, which have histological features of neither typical hepatoblastoma (HB) nor hepatocellular carcinoma (HCC). METHODS AND RESULTS: The clinicopathological features of 11 patients with HEMNOS were analyzed retrospectively. The median age and serum alpha-fetoprotein level at diagnosis was 7 years and 182,000 ng/mL respectively...
June 28, 2017: Histopathology
https://www.readbyqxmd.com/read/28659708/specific-correlation-between-the-major-chromosome-10q26-haplotype-conferring-risk-for-age-related-macular-degeneration-and-the-expression-of-htra1
#17
Sha-Mei Liao, Wei Zheng, Jiang Zhu, Casey A Lewis, Omar Delgado, Maura A Crowley, Natasha M Buchanan, Bruce D Jaffee, Thaddeus P Dryja
PURPOSE: A region within chromosome 10q26 has a set of single nucleotide polymorphisms (SNPs) that define a haplotype that confers high risk for age-related macular degeneration (AMD). We used a bioinformatics approach to search for genes in this region that may be responsible for risk for AMD by assessing levels of gene expression in individuals carrying different haplotypes and by searching for open chromatin regions in the retinal pigment epithelium (RPE) that might include one or more of the SNPs...
2017: Molecular Vision
https://www.readbyqxmd.com/read/28656232/transcription-factor-7-like-2-promotes-oligodendrocyte-differentiation-and-remyelination
#18
Chao Weng, Man Ding, Shanghua Fan, Qian Cao, Zuneng Lu
Transcription factor 7 like 2 (TCF7L2, also termed TCF4), is a Wnt effector induced transiently in the oligodendroglial lineage. The current well accepted hypothesis is that TCF7L2 inhibits oligodendrocyte differentiation and remyelination through canonical Wnt/β‑catenin signaling. However, recent studies indicated that TCF7L2 activity is required during oligodendrocyte differentiation and remyelination. In order to clarify this, in situ hybridization, immunofluorescence and western blot analysis using in vivo TCF7L2 conditional knockout mice, were performed and it was found that TCF7L2 promotes oligodendrocyte differentiation during myelin formation and remyelination...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28656208/effect-of-nonylphenol-on-the-regulation-of-cell-growth-in-colorectal-cancer-cells
#19
Xuefeng Yang, Handong Huang, Maijian Wang, Xingbin Zheng, Jie Xu, Ming Xie
Nonylphenol (NP) is a well-known endocrine-disrupting chemical (EDC), which can enhance the progression of cancer by functioning as an estrogen‑like factor. In the present study, the effects of different concentrations of NP on COLO205 colorectal cancer (CRC) cells were examined. The results of flow cytometric analysis revealed that NP significantly decreased the proportion of cells in the G0/G1 phase in a dose‑dependent manner, which was accompanied by a marginal increase in the proportions of cells in S and G2/M phases...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28654330/early-transcriptional-responses-during-heat-stress-in-the-coral-acropora-hyacinthus
#20
Nikki Traylor-Knowles, Noah H Rose, Elizabeth A Sheets, Stephen R Palumbi
Corals respond to heat pulses that cause bleaching with massive transcriptional change, but the immediate responses to stress that lead up to these shifts have never been detailed. Understanding these early signals could be important for identifying the regulatory mechanisms responsible for bleaching and how these mechanisms vary between more and less resilient corals. Using RNA sequencing (RNAseq) and sampling every 30 minutes during a short-term heat shock, we found that components of the transcriptome were significantly upregulated within 90 min and after a temperature increase of +2 °C...
April 2017: Biological Bulletin
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