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DNA and Cell Biology

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https://www.readbyqxmd.com/read/28622016/endoplasmic-reticulum-stress-is-involved-in-nucleus-pulposus-degeneration-and-attenuates-low-ph-induced-apoptosis-of-rat-nucleus-pulposus-cells
#1
Zhi-Yang Xie, Lu Chen, Feng Wang, Lei Liu, Cong Zhang, Kun Wang, Feng Cai, Arjun Sinkemanni, Xin Hong, Xiao-Tao Wu
The microenvironment of degenerative intervertebral disk (IVD) is characteristic of a high concentration of lactic acid and low pH levels, whereas the underlying mechanism has not been clearly defined. Endoplasmic reticulum (ER) is the hub of interactions between environmental signals and cellular biological functions, the malfunction of which is closely involved in the pathogenesis of multiple disorders, including IVD degeneration (IVDD). This research mainly aims at exploring what role ER stress plays in the natural process of IVDD and pH-induced apoptosis of rat nucleus pulposus (NP) cells (NPCs)...
June 16, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28622009/mir-139-5p-represses-bmsc-osteogenesis-via-targeting-wnt-%C3%AE-catenin-signaling-pathway
#2
Haitao Long, Buhua Sun, Liang Cheng, Shushan Zhao, Yong Zhu, Ruibo Zhao, Jianxi Zhu
Osteogenesis of mesenchymal stem cells (MSCs) has played a necessary role in the repair of bone. According to some reports, microRNAs participate in different physiological activity of the cells, including cell differentiation. This study investigated the function that miR-139-5p plays in the osteogenic differentiation of human bone marrow MSCs (hBMSCs). In addition to miR-139-5p, the effects of alkaline phosphatase (ALP), a membrane-bound metalloenzyme that is considered an early osteogenic differentiation marker, have also been investigated...
June 16, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28613929/dna-methylation-and-hydroxymethylation-profile-of-cd34-enriched-cell-products-intended-for-autologous-cd34-cell-transplantation
#3
Jasmina-Ziva Rozman, Maja Pohar Perme, Mojca Jez, Elvira Malicev, Metka Krasna, Bojan Vrtovec, Primoz Rozman
Epigenetic dysregulation has been shown to limit functional capacity of aging hematopoietic stem cells, which may contribute to impaired outcome of hematopoietic stem cell-based therapies. The aim of our study was to gain better insight into the epigenetic profile of CD34(+)-enriched cell products intended for autologous CD34(+) cell transplantation in patients with cardiomyopathy. We found global DNA methylation content significantly higher in immunoselected CD34(+) cells compared to leukocytes in leukapheresis products (2...
June 14, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28604067/resveratrol-improves-cell-cycle-arrest-in-chronic-prostatitis-rats-by-c-kit-scf-suppression
#4
Yi He, Huizhi Zeng, Yang Yu, Jiashu Zhang, Xiaona Zeng, Fengtao Gong, Qi Liu, Bo Yang
Chronic prostatitis (CP) with complex pathogenesis is difficult for treatment. c-kit has been associated with the control of cell proliferation of prostate cells. This study aims to evaluate the role of resveratrol, an activator of Sirt1, in regulating the expression of c-kit in CP and investigate the consequent effects on cell cycle. Rat model of CP was established through subcutaneous injections of diphtheria-pertussis-tetanus vaccine and subsequently treated with resveratrol. Hematoxylin and eosin staining was performed to identify the histopathological changes in prostates...
June 12, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28598208/characterization-and-spatiotemporal-expression-of-klf4-in-large-yellow-croaker-larimichthys-crocea
#5
Yonghua Jiang, Kunhuang Han, Mingyi Cai, Yilei Wang, Ziping Zhang
As one of transcription factors and pluripotency factors, Klf4 plays a crucial role in regulation of cellular processes. In this article, we characterized Klf4 of large yellow croaker (Lc-Klf4), which encodes a 452-amino acid protein (Lc-Klf4) with three highly conserved C2H2 zinc fingers. Lc-Klf4 shares high conservative functions in teleosts with the closest relationship with Stegastes partitus. The spatiotemporal expression showed that Lc-Klf4 was expressed widely in adult tissues with gender difference as follows: brain>gill>eye>heart in female; heart>testis>gill>brain in male; male>female in heart, gill, and testis; and female>male in eye...
June 9, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28598207/the-relationship-between-single-nucleotide-polymorphisms-the-expression-of-dna-damage-response-genes-and-hepatocellular-carcinoma-in-a-polish-population
#6
Renata Krupa, Piotr Czarny, Paulina Wigner, Joanna Wozny, Maciej Jablkowski, Radzislaw Kordek, Janusz Szemraj, Tomasz Sliwinski
The molecular mechanism of hepatocellular carcinoma (HCC) is related to DNA damage caused by oxidative stress products induced by hepatitis B virus (HBV) or C (HCV) infection and exposure to environmental pollutants. Single-nucleotide polymorphisms (SNPs) of DNA damage response (DDR) genes may influence individual susceptibility to environmental risk factors and affect DNA repair efficacy, which, in turn, can influence the risk of HCC. The study evaluates a panel of 15 SNPs in 11 DDR genes (XRCC1, XRCC3, XPD, MUTYH, LIG1, LIG3, hOGG1, PARP1, NFIL1, FEN1, and APEX1) in 65 HCC patients, 50 HBV- and 50 HCV-infected non-cancerous patients, and 50 healthy controls...
June 9, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28594571/zmpste24-is-downstream-effector-of-interferon-induced-transmembrane-ifitm-antiviral-activity
#7
Shitao Li, Bishi Fu, Lingyan Wang, Martin E Dorf
The zinc metalloprotease ZMPSTE24 is a constitutively and ubiquitously expressed host restriction factor that is responsible for limiting infection by a broad spectrum of enveloped viruses, including influenza A, vesicular stomatitis, zika, ebola, Sindbis, cowpox, and vaccinia viruses, but not murine leukemia or adenovirus. Antiviral function is independent of ZMPSTE24 enzymatic activity. Protein interaction and genetic complementation studies indicate that ZMPSTE24 is a component of a common antiviral pathway that is associated with interferon-induced transmembrane proteins...
June 8, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28590769/associations-of-genetic-polymorphisms-relevant-to-metabolic-pathway-of-vitamin-d3-with-development-and-prognosis-of-childhood-bronchial-asthma
#8
Ying Zhang, Zhansheng Wang, Tongshuai Ma
This study was aimed at investigating the correlation between genetic polymorphisms relevant to metabolic pathway of vitamin D3 (VD3) and susceptibility to childhood bronchial asthma. Altogether 143 childhood patients with bronchial asthma and 143 healthy children of Chinese Han ethnicity were enrolled in this study. The key single-nucleotide polymorphisms (SNPs) were identified by HaploView 4.2 software and selected from previous investigations. Genomic DNAs were isolated from peripheral blood samples by using TaqMan Blood DNA kits...
June 7, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28574724/mir-144-3p-induces-cell-cycle-arrest-and-apoptosis-in-pancreatic-cancer-cells-by-targeting-proline-rich-protein-11-expression-via-the-mitogen-activated-protein-kinase-signaling-pathway
#9
Jian Li, Peisheng Sun, Zhongyi Yue, Dezhong Zhang, Kun You, Jianguo Wang
microRNAs (miRNAs) have been proved to be involved in many events of tumor development and progression, including cell proliferation, cell apoptosis, and cell cycle arrest. However, the potential role of miR-144-3p in pancreatic cancer (PC) remains elusive. In this study, we demonstrated that miR-144-3p was decreased in PC tissues and PANC-1 cells, whereas proline-rich protein 11 (PRR11) was remarkably increased. miR-144-3p mimics were discovered to inhibit cell proliferation by arresting cells at the S-phase of the cell cycle, and inducing cell apoptosis in PANC-1 cells...
June 2, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28574720/-bone-development-is-an-ontology-group-upregulated-in-porcine-oocytes-before-in-vitro-maturation-a-microarray-approach
#10
Joanna Budna, Artur Bryja, Piotr Celichowski, Wiesława Kranc, Sylwia Ciesiółka, Sylwia Borys, Marta Rybska, Agata Kolecka-Bednarczyk, Michal Jeseta, Dorota Bukowska, Paweł Antosik, Klaus P Brüssow, Małgorzata Bruska, Michał Nowicki, Maciej Zabel, Bartosz Kempisty
Mammalian cumulus-oocyte complexes (COCs) reach full developmental capability during folliculogenesis and oogenesis. It is well recognized that only gametes achieving MII stage after in vivo or in vitro maturation (IVM) are successfully fertilized by a single spermatozoon. Although the process of oocyte nuclear and/or cytoplasmic maturation in pigs is well determined, there exist many differences that promote these processes in vivo and in vitro. Therefore, this study aimed to investigate the differences in RNA expression profiles between porcine oocytes before and after IVM using microarray and real-time quantitative polymerase chain reaction (RT-qPCR) assays...
June 2, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28570839/mir-26b-promotes-3t3-l1-adipocyte-differentiation-through-targeting-pten
#11
Guilin Li, Chunyou Ning, Yao Ma, Long Jin, Qianzi Tang, Xuewei Li, Mingzhou Li, Haifeng Liu
microRNAs (miRNAs) play important roles in adipogenesis that is closely linked to obesity and energy homeostasis. Thus far, only a few miRNAs have been identified to regulate adipocyte development, arousing interest in the detailed function of miRNAs during adipogenesis. In this study, we found that the miR-26b expression showed an increasing trend during 3T3-L1 cells differentiation. To investigate the role of miR-26b in adipogenesis, the synthetic miR-26b agomirs and antagomirs were used to perform overexpression and knockdown experiment, respectively...
June 1, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28570836/the-influence-of-hepatitis-c-virus-therapy-on-the-dna-base-excision-repair-system-of-peripheral-blood-mononuclear-cells
#12
Piotr Czarny, Anna Merecz-Sadowska, Kinga Majchrzak, Maciej Jabłkowski, Janusz Szemraj, Tomasz Śliwiński, Bolesław Karwowski
Hepatitis C virus (HCV) can infect extrahepatic tissues, including lymphocytes, creating reservoir of the virus. Moreover, HCV proteins can interact with DNA damage response proteins of infected cells. In this article we investigated the influence of the virus infection and a new ombitasvir/paritaprevir/ritonavir ± dasabuvir ± ribavirin (OBV/PTV/r ± DSV ± RBV) anti-HCV therapy on the PBMCs (peripheral blood mononuclear cells, mainly lymphocytes) DNA base excision repair (BER) system. BER protein activity was analyzed in the nuclear and mitochondrial extracts (NE and ME) of PBMC isolated from patients before and after therapy, and from subjects without HCV, using modeled double-strand DNA, with 2'-deoxyuridine substitution as the DNA damage...
June 1, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28537760/caveolin-1-autophagy-pathway-mediated-cardiomyocyte-hypertrophy-induced-by-apelin-13
#13
Di Wu, Feng Xie, Ling Xiao, Fen Feng, Shifang Huang, Lu He, Meiqing Liu, Qun Zhou, Lanfang Li, Linxi Chen
Apelin, an endogenous ligand for apelin receptor (APJ), is reported to be involved in cardiomyocyte hypertrophy. In this study, we explored the mechanism of cardiomyocyte hypertrophy induced by apelin-13/APJ system. Left ventricular hypertrophy (LVH) rat model was established by constricting the abdominal aorta. Western blots were used for protein expression in LVH rats and cultured H9c2 cardiomyocytes. Transmission electron microscopy (TEM) was used to monitor morphological features of cells. In addition, the diameter and volume of H9c2 cells were detected by Scepter™ Handheld Automated Cell Counter...
May 24, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28525298/experimental-and-computational-evidence-on-the-interaction-of-cycloalkyl-%C3%AE-aminobisphosphonates-with-calf-thymus-dna
#14
Mohammad Bagher Gholivand, Hossein Peyman, Khodayar Gholivand, Hamideh Roshanfekr, Avat Arman Taherpour, Rouhollah Yaghoubi
Fluorescence spectroscopy, ultraviolet-visible absorption spectroscopy, circular dichroism spectroscopy, viscometry, cyclic voltammetry, and differential pulse voltammetry were applied to investigate the competitive interaction of DNA with the three new cycloalkyl α-aminobisphosphonates (D1-D3) and spectroscopic probe, neutral red dye, and Hoechst (HO), in a Tris-hydrogen chloride buffer (pH 7.4). The spectroscopic and voltammetric studies showed that the groove binding mode of interaction is predominant in the solution containing DNA and α-aminobisphosphonates...
May 19, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28520497/lncrna-pvt1-regulates-chondrocyte-apoptosis-in-osteoarthritis-by-acting-as-a-sponge-for-mir-488-3p
#15
Yufei Li, Shuhua Li, Yatong Luo, Yong Liu, Nanhui Yu
Long noncoding RNAs (lncRNAs) have been known to be involved in multiple diverse diseases, including osteoarthritis (OA). The present study aims at exploring the biological role of lncRNA plasmacytoma variant translocation 1 (PVT1) in OA and the underlying mechanism. Results showed that the expression of PVT1 was upregulated in OA chondrocytes compared with normal chondrocytes, silencing PVT1 inhibited the apoptosis of OA chondrocytes, and overexpression of PVT1 promoted the apoptosis of normal chondrocytes...
May 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28509589/characteristics-and-expression-profile-of-krt71-screened-by-suppression-subtractive-hybridization-cdna-library-in-curly-fleece-chinese-tan-sheep
#16
Xiaolong Kang, Yufang Liu, Jibin Zhang, Qinqin Xu, Chengkun Liu, Meiying Fang
As an important commercial trait for sheep, curly fleece has a great economic impact on production costs and efficiency in sheep industry. To identify genes that are important for curly fleece formation in mammals, a suppression subtractive hybridization analysis was performed on the shoulder skin tissues exposed to two different growth stages of Chinese Tan sheep with different phenotypes (curly fleece and noncurling fleece). BLAST analysis identified 67 differentially expressed genes, of which 31 were expressed lower and 36 were expressed higher in lambs than in adult sheep...
May 16, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28488892/dcp1a-and-gw182-induce-distinct-cellular-aggregates-and-have-different-effects-on-microrna-pathway
#17
Xiaohui Wang, Liang Chang, Huanru Wang, Airong Su, Zhiwei Wu
AIM: P-bodies are cytoplasmic foci composed of mRNAs and enzymes involved in mRNA degradation. P-bodies have been found to link to RNA interference and RNA decay mediated by microRNAs (miRNAs) and translational repression. Here, we aim to investigate different effects of overexpressed Dcp1a or GW182 on cytoplasmic aggregates formation and influence on miRNA pathway. RESULTS: Small RNAs were recruited into endogenous foci of P-bodies and aggregates formed by Dcpa1 and GW182 overexpression...
May 10, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28467108/gremlin1-accelerates-hepatic-stellate-cell-activation-through-upregulation-of-tgf-beta-expression
#18
Yan-Qiong Zhang, Lin-Yan Wan, Xiao-Min He, Yi-Ran Ni, Chang Wang, Chang-Bai Liu, Jiang-Feng Wu
Gremlin1, the antagonist of bone morphogenetic protein-7 and one of the target genes of transforming growth factor (TGF)-β signal pathway, plays an important role in embryonic development and its expression decreases along with aging. To explore the expression of gremlin1 in liver fibrosis and the causal link between gremlin1 and hepatic stellate cell (HSC) activation, we detected the expression of gremlin1 in mice with hepatic fibrosis induced by porcine serum using real time quantitative PCR (RT-qPCR) and immunohistochemical staining...
May 3, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28453302/variant-in-galnt3-gene-linked-with-reduced-coronary-artery-disease-risk-in-chinese-population
#19
Liwei Guo, Duan Li, Mengting Li, Lin Li, Yanmei Huang
AIM: Our previous study found expression of GALNT3 gene was reduced in coronary artery disease (CAD) patients, and it contributed to endothelial injury by regulating apoptosis and matrix metalloproteinase (MMP) expression. GALNT3 gene may be a potential target for future therapeutic intervention of CAD. However, none reports linking the GALNT3 gene to susceptibility of CAD. This study investigated the variant associations of GALNT3 gene and CAD. METHODS: Thirteen single nucleotide polymorphism (SNP) in and around the GALNT3 gene were tagged and analyzed in CAD patients (n = 1515) and control individuals (n = 5019), and the SNPs with CAD were tested with multiple logistic regression analysis in an additive genetic model (with one degree of freedom) after adjusting for age and sex...
April 28, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28445086/long-noncoding-rna-highly-upregulated-in-liver-cancer-activates-p53-p21-pathway-and-promotes-nasopharyngeal-carcinoma-cell-growth
#20
Xue Jiang, Weiwei Liu
Dysfunction of lncRNA has been found in the nasopharyngeal carcinoma (NPC); however, the effect of lncRNA expression on NPC tumorigenesis as well as the molecular mechanism of lncRNA in the pathogenesis of NPC remain largely unknown. In this study, we showed that highly upregulated in liver cancer (HULC), the first identified lncRNA in hepatocellular carcinoma, is highly expressed in NPC patients and correlated with a poor prognosis of cancer patients. Overexpressed HULC promotes NPC cell growth. Downregulation of HULC activated p53 and induced the increased expression of p21, which finally caused cell cycle arrest and cell apoptosis...
April 26, 2017: DNA and Cell Biology
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