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https://www.readbyqxmd.com/read/28516123/polysome-fractionation-to-analyze-mrna-distribution-profiles
#1
Amaresh C Panda, Jennifer L Martindale, Myriam Gorospe
Eukaryotic cells adapt to changes in external or internal signals by precisely modulating the expression of specific gene products. The expression of protein-coding genes is controlled at the transcriptional and post-transcriptional levels. Among the latter steps, the regulation of translation is particularly important in cellular processes that require rapid changes in protein expression patterns. The translational efficiency of mRNAs is altered by RNA-binding proteins (RBPs) and noncoding (nc)RNAs such as microRNAs (Panda et al...
February 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28502297/-knock-down-of-cadherin-17-inhibits-proliferation-and-promote-apoptosis-in-noscapine-resistant-human-sw480-colon-cancer-cells
#2
Zheng Han, Xiaodong Huang, Meng Liu, Jie Tan, Qingxi Zhu, Yanfen Wang, Yishan Cai, Aifang Chen, Xia Tian
Objective To investigate the effects of cadherin 17 (CDH17) on the proliferation and apoptosis of noscapine-resistant human SW480 colon cancer cells. Methods The level of CDH17 in noscapine-resistant human SW480 colon cancer cells was knocked down by small interfering RNA (siRNA), and the silence was confirmed by Western blotting and real-time quantitative PCR. Transfected SW480 cells were treated with noscapine, and then the proliferation and cell viability of SW480 cells were measured by MTT assay and plate clone formation assay, respectively; the apoptosis of SW480 cells was detected by flow cytometry combined with annexinV-FITC/PI staining; the expressions of poly-ADP-ribose polymerase (PARP) and caspase-3 were determined by Western blotting...
May 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28487070/noncoding-rna-and-epigenetic-gene-regulation-in-renal-disease
#3
REVIEW
Satya K Kota, Savithri B Kota
Kidneys have a major role in normal physiology and metabolic homeostasis. Loss or impairment of kidney function is a common occurrence in several metabolic disorders, including hypertension and diabetes. Chronic kidney disease (CKD) affect nearly 10% of the population worldwide; ranks 18th in the list of causes of death; and contributes to a significant proportion of healthcare costs. The tissue repair and regenerative potential of kidneys are limited and they decline during aging. Recent studies have demonstrated a key role for epigenetic processes and players, such as DNA methylation, histone modifications, noncoding (nc)RNA, and so on, in both kidney development and disease...
May 6, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28485503/role-of-small-interfering-rna-silencing-protein-kinase-c-%C3%AE-gene-on-the-occurrence-of-ultrafiltration-failure-in-peritoneal-dialysis-rats
#4
Zhi-Wei Sun, Jian Wang, Min Weng, Jian-Zhong Tang, Jun-Feng Wang, Jian Xu, Ling Lin, Hong-Ling Yuan
This study aims to explore the effect of PKC-α gene silencing on the occurrence of ultrafiltration failure (UFF) in peritoneal dialysis (PD) rats. Forty-eight male SD rats were collected to establish 5/6 renal resection uremic and uremic PD rats models. Rats were assigned into control, sham operation, uremia, PD-2 W (peritoneal dialysis for 2 weeks), PD-4 W (peritoneal dialysis for 4 weeks), negative control (NC) (peritoneal dialysis for 4 weeks, and injected 0.1 mg/kg blank plasmid into abdominal cavity) and PKC-α siRNA (peritoneal dialysis for 4 weeks, and injected 0...
May 9, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28472815/long-noncoding-rna-gas5-which-acts-as-a-tumor-suppressor-via-microrna-21-regulates-cisplatin-resistance-expression-in-cervical-cancer
#5
Qirong Wen, Yan Liu, Huabing Lyu, Xiaying Xu, Qingxia Wu, Ni Liu, Qi Yin, Juan Li, Xiujie Sheng
OBJECTIVES: The aims of this study were to investigate the functions of GAS5 as a tumor suppressor in cervical cancer and explore the mechanism. METHODS: The expression of GAS5 and microRNA 21 (miR-21) was detected in primary cervical cancer tissue specimens, as well as in cervical cancer cell lines. We identified the interaction of GAS5 and miR-21 by quantitative polymerase chain reaction, Western blot, and dual-luciferase reporter assay. We also studied the functions of GAS5 in proliferation, apoptosis, migration, and invasion in cervical cancer cells in vitro and vivo...
May 2, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28446240/molecular-mechanisms-by-which-herv-k-gag-interferes-with-hiv-1-gag-assembly-and-particle-infectivity
#6
Kazuaki Monde, Hiromi Terasawa, Yusuke Nakano, Ferri Soheilian, Kunio Nagashima, Yosuke Maeda, Akira Ono
BACKGROUND: Human endogenous retroviruses (HERVs), the remnants of ancient retroviral infections, constitute approximately 8% of human genomic DNA. Since HERV-K Gag expression is induced by HIV-1 Tat in T cells, induced HERV-K proteins could affect HIV-1 replication. Indeed, previously we showed that HERV-K Gag and HIV-1 Gag coassemble and that this appears to correlate with the effect of HERV-K Gag expression on HIV-1 particle release and its infectivity. We further showed that coassembly requires both MA and NC domains, which presumably serve as scaffolding for Gag via their abilities to bind membrane and RNA, respectively...
April 26, 2017: Retrovirology
https://www.readbyqxmd.com/read/28425921/plasma-micro-rna-alterations-appear-late-in-pancreatic-cancer
#7
Oskar Franklin, Pär Jonsson, Ola Billing, Erik Lundberg, Daniel Öhlund, Hanna Nyström, Christina Lundin, Henrik Antti, Malin Sund
OBJECTIVES: The aim of this research was to study whether plasma microRNAs (miRNA) can be used for early detection of pancreatic cancer (PC) by analyzing prediagnostic plasma samples collected before a PC diagnosis. BACKGROUND: PC has a poor prognosis due to late presenting symptoms and early metastasis. Circulating miRNAs are altered in PC at diagnosis but have not been evaluated in a prediagnostic setting. METHODS: We first performed an initial screen using a panel of 372 miRNAs in a retrospective case-control cohort that included early-stage PC patients and healthy controls...
January 3, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28410331/the-role-of-erbin-in-gts-21-regulating-inflammtory-responses-in-mdp-stimulated-macrophages
#8
Xiao-Jing Wu, Xu-Ming Yang, Xue-Min Song, Yang Xu, Jian-Guo Li, Yan-Lin Wang, Zong-Ze Zhang, Lin-Li Le, Hui Liang, Yin Zhang
OBJECTIVE: To explore the role of Erbin protein and nucleotide-binding oligomerization domain 2/receptor-interacting serine/threonine protein kinases (NOD2/RICK) in GTS-21 activating cholinergic anti-inflammatory pathway. METHODS: Experiments were randomly divided into four groups: normal control (NC) group, muramyl dipeptide (MDP) group, 10 μg/mL MDP, GTS-21 (GTS) group, 10 μg/mL MDP plus 50 μg/mL GTS-21 (α7 nAChRs agonist), Erbin shRNA interference (sh-Erbin) group: sh-Erbin RNA plus 10 μg/mL MDP and 50 μg/mL GTS-21...
May 2017: Shock
https://www.readbyqxmd.com/read/28402921/mir-155-promotes-cell-proliferation-and-inhibits-apoptosis-by-pten-signaling-pathway-in-the-psoriasis
#9
Longjiang Xu, Hong Len, Xin Shi, Jiang Ji, Jinxiang Fu, Hong Leng
MicroRNAs (miRNAs) have been demonstrated to contribute to malignant progression in psoriasis development. The purposes of the study was to evaluated the effects of miRNA-155 on cell proliferation, migration and apoptosis in psoriasis development via PTEN singaling pathway and identify its direct target protein. Quantitative real-time RT-PCR (qRT-PCR) was performed to examine the level of miR-155 in psoriasis cells, miR-155 was downregulated in a psoriasis cell line Hacat by transfected with small interfering RNA (siRNA), respectively...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28397054/effects-of-rna-interference-combined-with-ultrasonic-irradiation-and-sonovue-microbubbles-on-expression-of-stat3-gene-in-keratinocytes-of-psoriatic-lesions
#10
Li-Wei Ran, Hao Wang, Dong Lan, Hong-Xia Jia, Si-Si Yu
The most effective sequence of small interfering RNA (siRNA) silencing STAT3 of psoriatic keratinocytes (KCs) was screened out, and the effects of the most effective siRNA combined with ultrasonic irradiation and SonoVue microbubbles on the expression of STAT3 of KCs and the dose- and time-response were investigated. Three chemically-synthetic siRNAs targeting STAT3 carried by Lipofectamine 3000 were transfected into KCs, and the effects on STAT3 expression were detected, then the most effective siRNA was selected for the subsequent experiments...
April 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28393176/mir-145-inhibits-proliferation-and-migration-of-breast-cancer-cells-by-directly-or-indirectly-regulating-tgf-%C3%AE-1-expression
#11
Yanling Ding, Chunfu Zhang, Jiahui Zhang, Nannan Zhang, Tao Li, Jie Fang, Yi Zhang, Feiyang Zuo, Zehua Tao, Shengnan Tang, Wei Zhu, Huabiao Chen, Xiaochun Sun
Studies have demonstrated low expression of miR-145 associated with cell proliferation and migration in a wide variety of tumors. Here, we studied the expression of miR-145 in relation to the occurrence and development of breast cancer. Total RNA from breast cancer tissue and corresponding adjacent normal tissue was extracted and used to detect miR-145 expression by quantitative real-time polymerase chain reaction (qRT-PCR). We also transfected breast cancer cells with hsa-miR-145 mimics, hsa-miR-145 inhibitor, mimics negative control (mimics NC) or inhibitor negative control (inhibitor NC)...
April 4, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28391160/long-non-coding-rna-pvt1-promote-lps-induced-septic-acute-kidney-injury-by-regulating-tnf%C3%AE-and-jnk-nf-%C3%AE%C2%BAb-pathways-in-hk-2-cells
#12
Wei Huang, Xiuwen Lan, Xueting Li, Dawei Wang, Yinghao Sun, Qian Wang, Hong Gao, Kaijiang Yu
This study aimed to investigate the effect and underlying mechanism of long non-coding RNA plasmacytoma variant translocation 1 (PVT1) in lipopolysaccharide (LPS)-induced inflammation injury in HK-2 cells. We established LPS-induced septic acute kidney injury (AKI) model in HK-2 cells. LPS-induced HK-2 cells were transfected with pc-PVT1, pc-NC, si-PVT1 or si-NC. Cell viability and apoptosis rate were detected by MTT assay and Annexin V-FITC/PI Apoptosis Detection kit, respectively. The relationships of PVT1 and inflammatory factors were evaluated by RNA Immunoprecipitation (RIP) assay...
April 6, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28359949/establishment-of-lysozyme-gene-rna-interference-systemand-its-involvement-in-salinity-tolerance-in-sea-cucumber-apostichopus-japonicus
#13
Yi Tian, Yanan Jiang, Yanpeng Shang, Yu-Peng Zhang, Chen-Fan Geng, Li-Qiang Wang, Ya-Qing Chang
The lysozyme gene was silenced using RNA interference (RNAi) to analyze the function of lysozyme in sea cucumber under salt stress. The interfering efficiency of four lysozyme RNAi oligos ranged from 0.55 to 0.70. From the four oligos, p-miR-L245 was used for further interfering experiments because it had the best silencing efficiency. Peristomial film injection of p-miR-L245 (10 μg) was used for further interfering experiments. The lowest gene expression, determined by RT-PCR assay, in muscle, coelomic fluid, and parapodium occurred 48 h after p-miR-L245 injection, while that of body wall and tube foot was 96 h and 24 h, respectively...
March 28, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28359324/cerebrospinal-fluid-cell-free-mitochondrial-dna-is-associated-with-hiv-replication-iron-transport-and-mild-hiv-associated-neurocognitive-impairment
#14
Sanjay R Mehta, Josué Pérez-Santiago, Todd Hulgan, Tyler R C Day, Jill Barnholtz-Sloan, Haley Gittleman, Scott Letendre, Ronald Ellis, Robert Heaton, Stephanie Patton, Jesse D Suben, Donald Franklin, Debralee Rosario, David B Clifford, Ann C Collier, Christina M Marra, Benjamin B Gelman, Justin McArthur, Allen McCutchan, Susan Morgello, David Simpson, James Connor, Igor Grant, Asha Kallianpur
BACKGROUND: Mitochondria are abundant organelles critical for energy metabolism and brain function. Mitochondrial DNA (mtDNA), released during cellular injury and as part of the innate immune response to viral pathogens, contains CpG motifs that act as TLR-9 ligands. We investigated relationships between cerebrospinal fluid (CSF) cell-free mtDNA levels and HIV viral load (VL), biomarkers of inflammation and iron transport, and neurocognitive (NC) function in the CNS HIV Antiretroviral Therapy Effects Research (CHARTER) cohort...
March 31, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28328548/characterization-of-hiv-seroconverters-in-a-tdf-ftc-prep-study-hptn-067-adapt
#15
Mariya V Sivay, Maoji Li, Estelle Piwowar-Manning, Yinfeng Zhang, Sarah E Hudelson, Mark A Marzinke, Rivet K Amico, Andrew Redd, Craig W Hendrix, Peter L Anderson, Kevin Bokoch, Linda Gail-Bekker, Frits van Griensven, Sharon Mannheimer, James P Hughes, Robert Grant, Susan H Eshleman
BACKGROUND: HPTN 067/ADAPT evaluated tenofovir disoproxil fumarate/emtricitabine (TDF/FTC) pre-exposure prophylaxis (PrEP) in women (South Africa) and men who have sex with men (Thailand, US). Participants received once-weekly directly observed TDF/FTC (DOT), and were then randomized to daily, time-driven, or event-driven PrEP. This report describes characterization of 12 HIV seroconversion events in this trial. METHODS: HIV rapid testing was performed at study sites...
March 22, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28318165/-effects-of-rhoa-silencing-on-proliferation-of-tongue-squamous-cancer-cells
#16
Yan Guoxin, Fan Bing, Zou Ronghai, Zhang Jian, Sun Xiaofeng, Tong Lei, Wang Qimin, Han Jinhong, Lu Xufei, Wang Ying, Zhou Yuan, He Zongxuan, Liao Yixiang, Li Ning, Cao Lei, Chen Zhenggang
OBJECTIVE: This study investigated the effect of RhoA silencing through RNA interference on proliferation and growth of tongue cancer cells, as well as explored the possible mechanisms of this effect. METHODS: SSC-4 tongue cancer cells were cultured in vitro and then transfected with small interfering RNA to knock down RhoA expression. The tested cells were divided into three groups: experimental group (experimental group 1: transfected with RhoA-siRNA-1; experi-mental group 2: transfected with RhoA-siRNA-2), negative control group (transfected by random sequence NC-siRNA), and blank control group (transfected with Lipofectamine)...
December 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28316213/-expression-of-lim-and-sh3-protein-1-in-renal-clear-cell-carcinoma-and-its-effects-on-invasion-and-migration-of-renal-clear-cell-carcinoma-786-o-cells
#17
B Jin, L Gao, W Li, J C Chen, R M Wen, J Q Wang
Objective: To investigate the expression of LIM and SH3 protein 1 (LASP1) in renal cell carcinoma and its significance in the invasion and migration of renal clear cell carcinoma 786-O cell line. Methods: The expression level of LASP1 in 41 cases of renal cell carcinoma tissues and normal renal tissues was analyzed by immunohistochemistry. The relationship between the expression level of LASP1 and clinical characteristics was further analyzed. Expression of LASP1 in 10 cases of tumor tissues with or without lymph node metastasis was analyzed by Western blot...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28272713/long-non-coding-rna-ccat2-promotes-the-breast-cancer-growth-and-metastasis-by-regulating-tgf-%C3%AE-signaling-pathway
#18
Z-J Wu, Y Li, Y-Z Wu, Y Wang, W-Q Nian, L-L Wang, L-C Li, H-L Luo, D-L Wang
OBJECTIVE: Long non-coding RNA (LncRNA) CCAT2 plays an important role in tumorigenesis, tumor growth and metastasis. In this study, we reported that long noncoding RNA CCAT2 (LncRNA CCAT2) could regulate TGF-β signaling pathway in breast cancer. PATIENTS AND METHODS: The relative mRNA expression level of CCAT2 in adjacent non-cancerous and breast cancer tissues without or with metastasis were analyzed by quantitative Real-time polymerase chain reaction (qRT-PCR)...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28272163/real-world-efficacy-of-daclatasvir-and-sofosbuvir-with-and-without-ribavirin-in-hiv-hcv-coinfected-patients-with-advanced-liver-disease-in-a-french-early-access-cohort
#19
Karine Lacombe, Hélène Fontaine, Catherine Dhiver, Sophie Metivier, Eric Rosenthal, Teresa Antonini, Marc Antoine Valantin, Patrick Miailhes, Stanislas Harent, Dominique Batisse, Georges-Philippe Pageaux, Julie Chas, Hugues Aumaitre, Stephanie Dominguez, Thierry Allegre, Alain Lafeuillade, Eric Billaud, Pierre De Truchis, Philippe Perre, Vincent Leroy, Victor De Ledinghen, Philippe Sogni, François Dabis, Yue Zhao, Anne Filipovics, Larysa Fedchuk, Raoudha Akremi, Yacia Bennai, Dominique Salmon Ceron
BACKGROUND: Efficacious, well-tolerated, direct antiviral agents have drastically changed the prognosis of hepatitis C virus (HCV) disease, but real-world data for oral treatments are limited in key populations such as HIV/HCV coinfection with advanced liver disease. Daclatasvir (DCV) efficacy and safety was assessed in the French "Autorisation Temporaire d'Utilisation" (ATU) program, providing DCV ahead of market authorization to patients with advanced HCV disease without other treatment options...
May 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28263224/acute-ischemia-induced-by-high-density-culture-increases-cytokine-expression-and-diminishes-the-function-and-viability-of-highly-purified-human-islets-of-langerhans
#20
Kate E Smith, Amy C Kelly, Catherine G Min, Craig S Weber, Fiona M McCarthy, Leah V Steyn, Vasudeo Badarinarayana, J Brett Stanton, Jennifer P Kitzmann, Peter Strop, Angelika C Gruessner, Ronald M Lynch, Sean W Limesand, Klearchos K Papas
BACKGROUND: Encapsulation devices have the potential to enable cell based insulin replacement therapies (such as human islet or stem cell derived β cell transplantation) without immunosuppression. However, reasonably sized encapsulation devices promote ischemia due to high β cell densities creating prohibitively large diffusional distances for nutrients. It is hypothesized that even acute ischemic exposure will compromise the therapeutic potential of cell based insulin replacement. In this study, the acute effects of high-density ischemia were investigated in human islets to develop a detailed profile of early ischemia induced changes and targets for intervention...
March 3, 2017: Transplantation
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