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DNA and Cell Biology

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https://www.readbyqxmd.com/read/28525298/experimental-and-computational-evidence-on-the-interaction-of-cycloalkyl-%C3%AE-aminobisphosphonates-with-calf-thymus-dna
#1
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
#2
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
#3
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
#4
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/28486041/role-of-mast-cells-in-dengue-virus-pathogenesis
#5
Berlin Londono-Renteria, Julio C Marinez-Angarita, Andrea Troupin, Tonya M Colpitts
Dengue is currently regarded as the most common arthropod-borne viral disease in tropical and subtropical areas, with an estimated 50-100 million infections occurring each year. Nearly all patients experience a self-limiting clinical course; however, the illness ranges from undifferentiated fever to severe hemorrhagic fever with or without shock syndrome complications. There are several immune cells associated with the pathogenesis of dengue virus (DENV) infection and systemic spread, including dendritic cells, macrophages, and mast cells (MCs)...
May 9, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28472596/reciprocal-regulation-between-mir-148a-152-and-dna-methyltransferase-1-is-associated-with-hyperhomocysteinemia-accelerated-atherosclerosis
#6
Anning Yang, Yue Sun, Yuan Gao, Songhao Yang, Caiyan Mao, Ning Ding, Mei Deng, Yanhua Wang, Xiaoling Yang, Yuexia Jia, Huiping Zhang, Yideng Jiang
DNA methyltransferase 1 (DNMT1) and miRNAs are both important regulators of gene expression that have been implicated in the pathogenesis of atherosclerosis. This study was designed to elucidate the potential interaction between DNMT1 and miRNAs in the context of hyperhomocysteinemia (HHcy)-related atherosclerosis. In the aorta of ApoE(-/-) mice fed a high methionine diet, increased expression of miR-148a/152, with decreased DNMT1 mRNA and protein levels, was detected. Similar changes were observed in cultured foam cells stimulated with homocysteine...
May 4, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28467108/gremlin1-accelerates-hepatic-stellate-cell-activation-through-upregulation-of-tgf-beta-expression
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28436683/dexmedetomidine-protects-pc12-cells-from-lidocaine-induced-cytotoxicity-through-downregulation-of-col3a1-mediated-by-mir-let-7b
#10
Qiong Wang, Yingjun She, Xiaobao Bi, Baisong Zhao, Xiangcai Ruan, Yonghong Tan
Safety concerns of some local anesthetics, such as lidocaine, have been raised in recent years due to potential neurological impairment. Dexmedetomidine may protect humans from neurotoxicity, and miR-let-7b is activated by nerve injury; however, the roles of miR-let-7b and its target gene in lidocaine-induced cytotoxicity are not well known. Through bioinformatics and a luciferase reporter assay, COL3A1 was suggested as a direct target gene of miR-let-7b. Here, we confirmed by measuring mRNA and protein levels that miR-let-7b was downregulated and COL3A1 was upregulated in lidocaine-treated cells, an observation that was reversed by dexmedetomidine...
April 24, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28436679/cited2-mutations-in-conserved-regions-contribute-to-conotruncal-heart-defects-in-chinese-children
#11
Bojian Li, Tian Pu, Yang Liu, Yuejuan Xu, Rang Xu
Conotruncal heart defects (CTDs) are severe malformations of outflow tract with heterogeneous morphology. Several missense variants of CITED2 have been identified to cause CTDs in recent researches. In this study, we screened the coding regions of CITED2 in 605 Chinese children with CTDs and found two possible pathogenic mutant sites: p.Q117L and p.T257A, both located in the conserved regions of CITED2. Then, we investigated the biological and functional alterations of them. Western blotting showed low level of protein expression of mutant Q117 and T257A compared with wild-type CITED2...
April 24, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28430527/herc4-is-overexpressed-in-hepatocellular-carcinoma-and-contributes-to-the-proliferation-and-migration-of-hepatocellular-carcinoma-cells
#12
Yi Zheng, Jie Li, Chenwei Pan, Guangyao Zhou, Lu Zhuge, Lingxiang Jin, Peipei Fang
Recently, more and more evidences unveiled that ubiquitin-proteasome system (UPS) makes an important contribution to the occurrence and development of cancer. HERC4 is one identified Ubiqutin ligase E3, a member of UPS. Although some studies showed that HERC4 abnormally expresses in many cancer cells, till now, nothing has been reported about the function of HERC4 in the development of hepatoma carcinoma. To this end, in this study, we studied the function of HERC4 for the first time in hepatoma carcinoma cells...
April 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28430525/differential-expression-of-mir-202-and-validation-of-predicted-target-genes-in-the-skin-tissue-of-c57bl-6-black-mice-and-balb-c-white-mice
#13
Lei Qu, Jianping Li, Zhihui Zhao, Huaizhi Jiang, Qiaoling Zhang
In recent years, with the need of the fur industry to obtain greater quantities of high-quality fur and the research of hair follicle development attracting greater attention, the role of miRNAs in hair follicle development has become a field of intense interest. miRNAs are short length RNAs that affect gene regulation by binding to the 3'-untranslated region (3'UTR) of the mRNAs of certain target genes. This study predicted and validated the target genes of miR-202 in the skin tissue of C57BL/6 black mice and BALB/c white mice...
April 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28430523/altered-expression-of-mirnas-is-related-to-larynx-cancer-tnm-stage-and-patients-smoking-status
#14
Antoni Bruzgielewicz, Ewa Osuch-Wojcikiewicz, Kazimierz Niemczyk, Olga Sieniawska-Buccella, Mateusz Siwak, Anna Walczak, Alicja Nowak, Ireneusz Majsterek
It has been reported that microRNAs (miRNAs) are responsible for acquiring all the hallmarks of cancer cells, as well as have a significant impact on the clinical management of cancers at every stage, including prognosis, remission, relapse, and metastasis. In this study, we investigated the association of miR-29a-3p, miR-202-3p, miR-3713, miR-4768-3p, and miR-548aa expression with clinicopathologic features in patients suffering from laryngeal cancer (LC) and determined the potential role of studied miRNAs in the progression of LC...
April 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28418735/polymorphisms-of-comt-c-649g-a-mao-a-c-1460c-t-net-c-1287g-a-genes-and-the-level-of-catecholamines-serotonin-in-patients-with-parkinson-s-disease
#15
Jolanta Florczak-Wyspianska, Agata Rozycka, Lukasz Wolny, Margarita Lianeri, Wojciech Kozubski, Jolanta Dorszewska
The purpose of this study was to determine the concentration of plasma norepinephrine (NE), epinephrine (E), and serotonin (5-HT) in two collections, after a 30-min supine (I) and 5-min upright position (II), and polymorphisms of genes, COMT (c.649G>A), MAO-A (c.1460C>T), and NET (c.1287G>A), in patients with Parkinson's disease (PD) and other degenerative parkinsonism and controls. The study was performed in 49 PD patients, 19 parkinsonism patients, and 48 controls. The level of NE, E, and 5-HT was determined by HPLC/EC...
April 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28418724/long-noncoding-rna-meg3-negatively-regulates-proliferation-and-angiogenesis-in-vascular-endothelial-cells
#16
Chao He, Wei Yang, Jun Yang, Jiawang Ding, Song Li, Hui Wu, Fei Zhou, Yurong Jiang, Lin Teng, Jian Yang
Long noncoding RNA (lncRNA) MEG3 is an important tumor suppressor in several types of human cancers. However, the biological function and underlying mechanism of MEG3 in vascular endothelial cells (VECs) remain unknown. In the present study, we demonstrated the functional importance of lncRNA MEG3 in proliferation and angiogenesis of VECs. MEG3 overexpression significantly suppressed the proliferation and in vitro angiogenesis in VECs, whereas knockdown of MEG3 had the opposite effect. Furthermore, we found that MEG3 exerts its function through negatively regulating miR-9 by acting as a microRNA sponge...
April 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28346846/dna-methylation-of-the-pdgfd-gene-promoter-increases-the-risk-for-intracranial-aneurysms-and-brain-arteriovenous-malformations
#17
Shengjun Zhou, Xiang Gao, Jie Sun, Zhiqing Lin, Yi Huang
The aim of this study was to determine the role of DNA methylation of the platelet-derived growth factor-D (PDGFD) gene promoter in the development of intracranial aneurysms (IAs) and brain arteriovenous malformations (BAVMs). A total of 70 patients with IAs or BAVMs and 26 control individuals were enrolled for this study. The PDGFD level in the plasma was determined using enzyme-linked immunosorbent assay. DNA methylation levels of seven cytosine-phosphate-guanine (CpG) dinucleotides present in the PDGFD gene promoter were measured using bisulfite pyrosequencing technology...
March 27, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28346830/synergetic-neuroprotective-effect-of-docosahexaenoic-acid-and-aspirin-in-sh-y5y-by-inhibiting-mir-21-and-activating-rxr%C3%AE-and-ppar%C3%AE
#18
Yongwang Fu, Jin Zhen, Zuneng Lu
Parkinson's disease (PD) is a serious neurodegenerative disorder that lacks effective therapeutic methods. In this research, expressions of PPARα, RXRα, and miR-21 were evaluated in PD patients and normal controls. To investigate the effects of miR-21, docosahexaenoic acid (DHA) and aspirin (ASA) on PD, as well as the relationships between them, SH-Y5Y cells were treated with DHA, ASA, or both for 24 h. The assay showed that levels of miR-21 were increased and levels of PPARα were decreased in PD patients compared with normal controls...
March 27, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28328238/valproic-acid-induces-decreased-expression-of-h19-promoting-cell-apoptosis-in-a549-cells
#19
Yang Hao, Guodong Wang, Chao Lin, Dong Li, Zhonghao Ji, Fei Gao, Zhanjun Li, Dianfeng Liu, Dongxu Wang
It has been suggested that the imprinted gene, H19, plays a crucial role in the development of cancer. In the present study, we attempted to treat the abnormal expression and methylation status of H19 in A549 cells using valproic acid (VPA), ascorbic acid (Vc), and 5-aza-Cytidine (5-Aza). The results suggested that VPA administration could alter the expression pattern of H19, while the hypomethylation status of H19 DMR was unchanged. Furthermore, overexpression of HDAC1 and DNMT1 was associated with decreased expression of H19 in VPA-treated cells...
March 22, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28304193/peptidomic-analysis-of-fetal-heart-tissue-for-identification-of-endogenous-peptides-involved-in-tetralogy-of-fallot
#20
Jingjing Zhang, Dong Liang, Qing Cheng, Li Cao, Yun Wu, Yan Wang, Shuping Han, Zhangbin Yu, Xianwei Cui, Tianhui Xu, Dingyuan Ma, Ping Hu, Zhengfeng Xu
Tetralogy of fallot (TOF) is one of the most prevalent types of congenital heart diseases. As a category of bioactive molecules, peptides have been proved to participate in various biological processes. However, the role of endogenous peptides in the pathogenesis of TOF has not been studied. In this study, we performed a comparative peptidomic profile in the fetal heart of TOF and the control group for the first time by liquid chromatography-tandem mass spectrometry. Our data demonstrated that a total of 201 peptides derived from 176 precursor proteins were differentially expressed in the heart tissues of TOF fetuses compared with normal controls, including 41 upregulated peptides and 160 downregulated peptides...
March 17, 2017: DNA and Cell Biology
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