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https://www.readbyqxmd.com/read/29332545/long-noncoding-rna-h19-inhibits-cell-viability-migration-and-invasion-via-downregulation-of-irs-1-in-thyroid-cancer-cells
#1
Peng Wang, Guoqing Liu, Weimin Xu, Haixia Liu, Qingao Bu, Diwen Sun
Thyroid cancer is a common endocrine gland malignancy which exhibited rapid increased incidence worldwide in recent decades. This study was aimed to investigate the role of long noncoding RNA H19 in thyroid cancer. Long noncoding RNA H19 was overexpressed or knockdown in thyroid cancer cells SW579 and TPC-1, and the expression of long noncoding RNA H19 was detected by real-time polymerase chain reaction. The cell viability, migration, and invasion were determined by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide assay, Transwell assay, and wound healing assay, respectively...
December 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29328711/measurement-of-the-frequency-of-the-2%C3%A2-3-s-2%C3%A2-3-p-transition-of-4-he
#2
X Zheng, Y R Sun, J-J Chen, W Jiang, K Pachucki, S-M Hu
The 2 ^{3}S-2 ^{3}P transition of ^{4}He was measured by comb-linked laser spectroscopy using a transverse-cooled atomic beam. The centroid frequency was determined to be 276 736 495 600.0(1.4) kHz, with a fractional uncertainty of 5.1×10^{-12}. This value is not only more accurate but also differs by as much as -49.5  kHz (20σ) from the previous result given by [Cancio Pastor et al., Phys. Rev. Lett. 92, 023001 (2004)PRLTAO0031-900710.1103/PhysRevLett.92.023001; Cancio Pastor et al.Phys. Rev...
December 29, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29328365/nuclear-gsk3%C3%AE-induces-dna-double-strand-break-repair-by-phosphorylating-53bp1-in-glioblastoma
#3
Yong Yang, Tiantian Lei, Suya Du, Rongsheng Tong, Hailian Wang, Jiao Yang, Juan Huang, Minghan Sun, Yi Wang, Zhi Dong
Glioblastoma is the most malignant and lethal subtype brain tumors with high risk of recurrence and therapeutic resistance. Emerging evidence has indicated that glycogen synthesis kinase 3 (GSK3)β plays oncogenic roles in multiple tumor types; however, the underlying mechanisms remain largely unknown. It has also been demonstrated that p53 binding protein 1 (53BP1) plays a central role in DNA double-strand break (DSB) repair. This study aimed to reveal the significance of GSK3β translocation from the cytoplasm to the nucleus, and to determine whether GSK3β induces DNA DSB repair in the nuclei of glioblastoma cells via phospho-53BP1...
January 4, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29328070/nerve-growth-factor-upregulates-sirtuin-1-expression-in-cholestasis-a-potential-therapeutic-target
#4
Ming-Shian Tsai, Po-Huang Lee, Cheuk-Kwan Sun, Ting-Chia Chiu, Yu-Chun Lin, I-Wei Chang, Po-Han Chen, Ying-Hsien Kao
This study investigated the regulatory role of nerve growth factor (NGF) in sirtuin 1 (SIRT1) expression in cholestatic livers. We evaluated the expression of NGF and its cognate receptors in human livers with hepatolithiasis and the effects of NGF therapy on liver injury and hepatic SIRT1 expression in a bile duct ligation (BDL) mouse model. Histopathological and molecular analyses showed that the hepatocytes of human diseased livers expressed NGF, proNGF (a precursor of NGF), TrkA and p75NTR, whereas only p75NTR was upregulated in hepatolithiasis, compared with non-hepatolithiasis livers...
January 12, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29327811/an-aza-resveratrol-chalcone-derivative-6b-protects-mice-against-diabetic-cardiomyopathy-by-alleviating-inflammation-and-oxidative-stress
#5
Shengban You, Jianchang Qian, Chuchu Sun, Hailing Zhang, Shiju Ye, Taiwei Chen, Zheng Xu, Jingying Wang, Weijian Huang, Guang Liang
Inflammation and oxidative stress play a crucial role in the development of diabetic cardiomyopathy (DCM). We previously had synthesized an Aza resveratrol-chalcone derivative 6b, of which effectively suppressing lipopolysaccharide (LPS)-induced inflammatory response in macrophages. This study aimed to investigate the potential protective effect of 6b on DCM and underlying mechanism. In H9c2 myocardial cells, 6b potently decreased high glucose (HG)-induced cell fibrosis, hypertrophy and apoptosis, alleviating inflammatory response and oxidant stress...
January 12, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29325713/the-interaction-of-tak1-and-tab1-enhances-lps-induced-cytokine-release-via-modulating-nf-%C3%AE%C2%BAb-activation-larimichthys-crocea
#6
Shi-Yuan Bao, Qing-Xue Sun, Cui-Luan Yao
Transforming growth factor-β-activating kinase 1 (TAK1) is triggered by foreign pathogenic infection and involves in proinflammatory response through the activation of nuclear factor-κB (NF-κB), which is specifically regulated by TAK1-binding protein 1 (TAB1). However, the expression and regulatory characterizations of TAK1 and TAB1 in fish immune response remain largely unknown. In the present study, the cDNA sequences of TAK1 (LcTAK1) and TAB1 (LcTAB1) were identified from large yellow croaker, Larimichthys crocea...
January 8, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29325523/fanconi-anemia-with-sun-sensitivity-caused-by-a-xeroderma-pigmentosum-associated-missense-mutation-in-xpf
#7
Isabell Popp, Maqsood Punekar, Nick Telford, Stavros Stivaros, Kate Chandler, Meenakshi Minnis, Anna Castleton, Claire Higham, Louise Hopewell, D Gareth Evans, Anja Raams, Arjan F Theil, Stefan Meyer, Detlev Schindler
BACKGROUND: Fanconi anemia (FA) is an inherited genomic instability disorder with congenital and developmental abnormalities, bone marrow failure and predisposition to cancer early in life, and cellular sensitivity to DNA interstrand crosslinks. CASE PRESENTATION: A fifty-one-year old female patient, initially diagnosed with FA in childhood on the basis of classic features and increased chromosomal breakage, and remarkable sun-sensitivity is described. She only ever had mild haematological abnormalities and no history of malignancy...
January 11, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29324735/influence-of-c-src-on-hypoxic-resistance-to-paclitaxel-in-human-ovarian-cancer-cells-and-reversal-of-fv-429
#8
Qinglong Guo, Lu Lu, Yan Liao, Xiaoping Wang, Yi Zhang, Yicheng Liu, Shaoliang Huang, Haopeng Sun, Zhiyu Li, Li Zhao
SRC family kinase was documented to have vital roles in adjusting cancer cell malignant behaviors. To date, the role of c-Src, a member of SRC family kinase, in resistance to paclitaxel in human ovarian cancer cells under hypoxia has not been investigated. In the present study, we discovered that hypoxic environment suppressed paclitaxel-induced G2/M phase arrest and blockade of c-Src improved ovarian cancer cells' sensitivity to paclitaxel. FV-429, a derivative of natural flavonoid wogonin, could suppress gene expression and activation of c-Src, followed by deteriorated Stat3 nuclear translocation and its binding to HIF-1α, resulting in paclitaxel resistance reversal through G2/M arrest potentiation...
January 11, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29324716/the-effects-of-a-macromolecular-charring-agent-with-gas-phase-and-condense-phase-synergistic-flame-retardant-capability-on-the-properties-of-pp-ifr-composites
#9
Hongda Chen, Jihui Wang, Aiqing Ni, Anxin Ding, Xia Han, Ziheng Sun
In order to improve the efficiency of intumescent flame retardants (IFRs), a novel macromolecular charring agent named poly(ethanediamine-1,3,5-triazine-p-4-amino-2,2,6,6-tetramethylpiperidine) (PETAT) with gas phase and condense phase synergistic flame-retardant capability was synthesized and subsequently dispersed into polypropylene (PP) in combination with ammonium polyphosphate (APP) via a melt blending method. The chemical structure of PETAT was investigated by Fourier transform infrared spectroscopy (FTIR), and ¹H nuclear magnetic resonance (NMR) spectroscopy...
January 11, 2018: Materials
https://www.readbyqxmd.com/read/29323713/neat1-contributes-to-breast-cancer-progression-through-modulating-mir-448-and-zeb1
#10
Xing Jiang, Yong Zhou, Ai-Jun Sun, Jun-Li Xue
Breast cancer is a kind of common female cancers. Increasing evidence has exhibited that lncRNAs exert a crucial role in breast cancer. So far, the mechanism of lncRNAs in breast cancer is still not well established. In our current study, we focused on the biological role of lncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) in breast cancer. We observed that NEAT1 levels were significantly increased in human breast cancer cells including MCF-7, MDA-MB-453, MDA-MB-231and SKBR3 cells compared to normal mammary epithelial cells MCF-10A while miR-448 was decreased...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29323204/calcium-phosphate-complex-increased-during-subchondral-bone-remodeling-affects-earlystage-osteoarthritis
#11
Youn-Kwan Jung, Min-Su Han, Hye-Ri Park, Eun-Ju Lee, Ji-Ae Jang, Gun-Woo Kim, Sun-Young Lee, DaeWon Moon, Seungwoo Han
An activation of osteoclasts and subchondral bone remodeling is a major histologic feature of early-stage osteoarthritis (OA), which can be accompanied by an increase of calcium (Ca) and phosphate (Pi) level in the subchondral milieu. Considering articular cartilage gets most of nutrition from subchondral bone by diffusion, these micro-environmental changes in subchondral bone can affect the physiology of articular chondrocytes. Here, we have shown that Ca is increased and co-localized with Pi in articular cartilage of early-stage OA...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29323103/oridonin-exerts-anticancer-effect-on-osteosarcoma-by-activating-ppar-%C3%AE-and-inhibiting-nrf2-pathway
#12
Ying Lu, Yang Sun, Jianwei Zhu, Lisha Yu, Xiubo Jiang, Jie Zhang, Xiaochen Dong, Bo Ma, Qi Zhang
Osteosarcoma is the most common high-grade human primary malignant bone sarcoma with lower survival in the past decades. Oridonin, a bioactive diterpenoid isolated from Rabdosia rubescens, has been proved to possess potent anti-cancer effects. However, its potential mechanism still remains not fully clear nowadays. In this study, we investigated the anticancer effect of oridonin on human osteosarcoma and illuminated the underlying mechanisms. In vitro, oridonin inhibited the cell viability of various osteosarcoma cells...
January 11, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29322615/melatonin-protects-against-a%C3%AE-induced-neurotoxicity-in-primary-neurons-via-mir-132-pten-akt-foxo3a-pathway
#13
Yue Zhao, Ranran Zhao, Jintao Wu, Qian Wang, Kunkun Pang, Qingqing Shi, Qing Gao, Yanlai Hu, Xiaoguang Dong, Jing Zhang, Jinhao Sun
Alzheimer's disease (AD) is a kind of neurodegenerative disorder associated with age. Investigations suggest that amyliod-β (Aβ) is implicated in the pathogenesis of AD. The accumulation of Aβ in the brain causes oxidative stress and synaptic toxicity, leads to synaptic dysfunction and neuronal death. Previous investigations suggest that melatonin an endogenous hormone can counteract Aβ-induced neurotoxicity. However, the molecular mechanisms of Aβ-induced toxicity and melatonin treatment remain elusive...
January 11, 2018: BioFactors
https://www.readbyqxmd.com/read/29321496/genistein-promotes-ionizing-radiation-induced-cell-death-by-reducing-cytoplasmic-bcl-xl-levels-in-non-small-cell-lung-cancer
#14
Zhimin Zhang, Feng Jin, Xiaojuan Lian, Mengxia Li, Ge Wang, Baohua Lan, Hao He, Guo-Dong Liu, Yan Wu, Guiyin Sun, Cheng-Xiong Xu, Zhen-Zhou Yang
Genistein (GEN) has been previously reported to enhance the radiosensitivity of cancer cells; however, the detailed mechanisms remain unclear. Here, we report that GEN treatment inhibits the cytoplasmic distribution of Bcl-xL and increases nuclear Bcl-xL in non-small cell lung cancer (NSCLC). Interestingly, our in vitro data show that ionizing radiation IR treatment significantly increases IR-induced DNA damage and apoptosis in a low cytoplasmic Bcl-xL NSCLC cell line compared to that of high cytoplasmic Bcl-xL cell lines...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321329/a-cyclin-binding-motif-in-human-samhd1-is-required-for-its-hiv-1-restriction-dntpase-activity-tetramer-formation-and-efficient-phosphorylation
#15
Corine St Gelais, Sun Hee Kim, Victoria V Maksimova, Olga Buzovetsky, Kirsten Knecht, Caitlin Shepard, Baek Kim, Yong Xiong, Li Wu
Sterile alpha motif and HD domain-containing protein 1 (SAMHD1) regulates intracellular deoxynucleoside triphosphate (dNTP) levels and functions as a retroviral restriction factor through its dNTP triphosphohydrolase (dNTPase) activity. Human SAMHD1 interacts with cell cycle regulatory proteins cyclin A2, cyclin-dependent kinase 1 (CDK1), and CDK2. This interaction mediates phosphorylation of SAMHD1 at threonine 592 (T592), which negatively regulates HIV-1 restriction. We previously reported that the interaction is mediated, at least in part, through a cyclin-binding motif (RXL, aa...
January 10, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29318513/targeted-elimination-of-mutant-mitochondrial-dna-in-melas-ipscs-by-mitotalens
#16
Yi Yang, Han Wu, Xiangjin Kang, Yanhui Liang, Ting Lan, Tianjie Li, Tao Tan, Jiangyun Peng, Quanjun Zhang, Geng An, Yali Liu, Qian Yu, Zhenglai Ma, Ying Lian, Boon Seng Soh, Qingfeng Chen, Ping Liu, Yaoyong Chen, Xiaofang Sun, Rong Li, Xiumei Zhen, Ping Liu, Yang Yu, Xiaoping Li, Yong Fan
Mitochondrial diseases are maternally inherited heterogeneous disorders that are primarily caused by mitochondrial DNA (mtDNA) mutations. Depending on the ratio of mutant to wild-type mtDNA, known as heteroplasmy, mitochondrial defects can result in a wide spectrum of clinical manifestations. Mitochondria-targeted endonucleases provide an alternative avenue for treating mitochondrial disorders via targeted destruction of the mutant mtDNA and induction of heteroplasmic shifting. Here, we generated mitochondrial disease patient-specific induced pluripotent stem cells (MiPSCs) that harbored a high proportion of m...
January 9, 2018: Protein & Cell
https://www.readbyqxmd.com/read/29317219/icariin-inhibits-lps-induced-cell-inflammatory-response-by-promoting-gr%C3%AE-nuclear-translocation-and-upregulating-gr%C3%AE-expression
#17
Xianjun Sun, Xiaohong Deng, Waijiao Cai, Wenwei Li, Ziyin Shen, Tinghui Jiang, Jianhua Huang
AIMS: Icariin (ICA) is a flavonoid isolated from certain plant species in the genus Epimedium, especially Epimedium brevicornum. Previous studies indicated that ICA has certain regulatory effects on some inflammatory diseases, and that ICA regulates the activity of glucocorticoid receptor (GR) and NF-κB. But the causal link between GR and NF-κB and other downstream pathways in effects of ICA remained elusive, therefore here we have investigated whether ICA could promote GR function, in turn, to regulate NF-κB and/or other factors to achieve its anti-inflammatory effect...
January 6, 2018: Life Sciences
https://www.readbyqxmd.com/read/29316268/crosstalk-between-hepatitis-b-virus-x-and-high-mobility-group-box-1-facilitates-autophagy-in-hepatocytes
#18
Sha Fu, Juan Wang, Xingwang Hu, Rong-Rong Zhou, Yongming Fu, Daolin Tang, Rui Kang, Yan Huang, Lunquan Sun, Ning Li, Xue-Gong Fan
Hepatitis B virus (HBV) X (HBx) protein is a pivotal regulator of HBV-triggered autophagy. However, the role of HBx-induced epigenetic changes in autophagy remains largely unknown. The cytoplasmic high-mobility group box 1 (HMGB1) has been identified as a positive regulator of autophagy, and its cytoplasmic translocation is closely associated with its acetylation status. Here, we evaluated the function of HMGB1 in HBx-mediated autophagy and its association with histone deacetylase (HDAC). Using cell lines with enforced expression of HBx, we demonstrated that HBx upregulated the expression of HMGB1 and promoted its cytoplasmic translocation by acetylation to facilitate autophagy...
January 5, 2018: Molecular Oncology
https://www.readbyqxmd.com/read/29314204/telmisartan-ameliorates-vascular-endothelial-dysfunction-in-coronary-slow-flow-phenomenon-csfp
#19
Zhe Jin, Qindong Tan, Bei Sun
Coronary slow flow phenomenon (CSFP) is a coronary microvascular disorder with an increasing morbidity, and currently, available therapies are of limited clinical value for its cure. Hence, it is urgent to find a novel approach to CSFP treatment. Several studies show that endothelial dysfunction plays a critical role in the aetiology of CSFP. Telmisartan (TMST) is a clinically available anti-hypertensive medicine and has shown its potential properties for improving vascular endothelial function. Thus, we aimed to investigate the effect of TMST on endothelial dysfunction in CSFP, Endothelial-dependent flow-mediated vasodilation, serum levels of nitric oxide, adiponectin, and endothelin-1 were surveyed before and after 3 months of TMST treatment...
January 2018: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/29304006/suppression-of-rankl-induced-osteoclastogenesis-by-the-metabolites-from-the-marine-fungus-aspergillus-flocculosus-isolated-from-a-sponge-stylissa-sp
#20
Hee Jae Shin, Byeoung-Kyu Choi, Phan Thi Hoai Trinh, Hwa-Sun Lee, Jong Soon Kang, Tran Thi Thanh Van, Hyi-Seung Lee, Jong Seok Lee, Yeon-Ju Lee, Jihoon Lee
A new α-pyrone merosesquiterpenoid possessing an angular tetracyclic carbon skeleton, ochraceopone F (1), and four known secondary metabolites, aspertetranone D (2), cycloechinulin (3), wasabidienone E (4), and mactanamide (5), were isolated from the marine fungus Aspergillus flocculosus derived from a sponge Stylissa sp. collected in Vietnam. The structures of Compounds 1-5 were elucidated by analysis of 1D and 2D NMR spectra and MS data. All the isolated compounds were evaluated for anti-proliferation activity and their suppression effects on receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclast differentiation using tartate-resisant acid phosphatase (TRAP)...
January 5, 2018: Marine Drugs
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