Query: siRNA

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Total 14193 results found since Jan 2013.

LncRNA-SNHG7 regulates proliferation, apoptosis and invasion of bladder cancer cells assurance guidelines.
CONCLUSIONS: This study showed that lncRNA -SNHG7 is overexpressed in bladder cancer tissues and cells. Downregulation of lncRNA-SNHG7 can inhibit the proliferation of bladder cancer cells and promote apoptosis, as well as inhibit cell invasion, which provides a potential molecular target for future tumor targeted therapy. PMID: 30003751 [PubMed - in process]
Source: Journal of B.U.ON. - July 14, 2018 Category: Cancer & Oncology Tags: J BUON Source Type: research

Long non-coding RNA DANCR promotes cell proliferation, migration, invasion and resistance to apoptosis in esophageal cancer.
Conclusions: According to our research, the expression of DANCR was up-regulated in human ESCC tissues, and the important role that DANCR played in ESCC cells was similar to an oncogene. Therefore, silencing of lncRNA DANCR could have potentially beneficial effects on the prognostic and therapy for ESCC in the future. PMID: 29997918 [PubMed]
Source: Journal of Thoracic Disease - July 14, 2018 Category: Respiratory Medicine Tags: J Thorac Dis Source Type: research

Role of Ku70 in the apoptosis of inflamed dental pulp stem cells
ConclusionsThe results indicate that NHEJ pathway was the main mechanism involved in DNA damage response induced by repeated LPS stimulation in DPSCs. Meanwhile, the findings suggested that Ku70 serves importantly in the apoptosis of DPSCs in the inflammatory environment.
Source: Inflammation Research - July 14, 2018 Category: Research Source Type: research

Resveratrol inhibits STAT5 activation through the induction of SHP-1 and SHP-2 tyrosine phosphatases in chronic myelogenous leukemia cells
STAT5 is an important transcription factor that is constitutively activated in various types of malignancies, including chronic myelogenous leukemia (CML). Whether the antitumor effects of resveratrol (RES) are linked to its capability to inhibit STAT5 activation in CML cells was investigated. We found that RES inhibited STAT5 activation in K562 and KU812 cell lines; RES also reduced the STAT5 concentration in the nucleus of K562 and KU812 cells. Protein tyrosine phosphatase (PTP) inhibitor, sodium pervanadate, reversed the RES-induced downregulation of STAT5, suggesting the involvement of a PTP. Indeed, we observed that R...
Source: Anti-Cancer Drugs - July 13, 2018 Category: Cancer & Oncology Tags: Preclinical Reports Source Type: research

Role of LKB1 in migration and invasion of Cr(VI)-transformed human bronchial epithelial Beas-2B cells
Hexavalent chromium [Cr(VI)] is a common human carcinogen associated with lung cancer and other pulmonary diseases as exposure to excessive Cr(VI) induces malignant transformation in human lung epithelial cells. The mechanism underlying its carcinogenicity is unclear in terms of how it facilitates metastases. Cr(VI) compounds are reported to briefly promote cell migration in a concentration-dependent manner and oncogene liver kinase B1 (LKB1) was reduced in Cr(VI)-transformed cells. Overexpression of LKB1 in Beas-2B-Cr [Cr(VI) malignantly transformed Beas-2B cells] suppressed cell migration and invasion and inactivated FAK...
Source: Anti-Cancer Drugs - July 13, 2018 Category: Cancer & Oncology Tags: Preclinical Reports Source Type: research

GSE117012 CD73 knockdown effect in pancreatic cancer cell lines
Contributors : Liangjing Zhou ; Shengnan JiaSeries Type : Expression profiling by high throughput sequencingOrganism : Homo sapiensRecent studies have shown that non-enzymatic function of CD73 play a key role in tumor progression, but this function of CD73 in pancreatic cancer cells has not been studied. In the present study, PANC-1 cell lines were transfected with CD73 siRNA, and proliferation ability and cell cycle was significantly inhibited. However, little is known about the mechanisms involved in CD73 regulation in tumors.
Source: GEO: Gene Expression Omnibus - July 13, 2018 Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Homo sapiens Source Type: research

MED31 involved in regulating self-renewal and adipogenesis of human mesenchymal stem cells.
Abstract Regulation of gene expression is critical for the maintenance of cell state and homeostasis. Aberrant regulation of genes can lead to unwanted cell proliferation or misdirected differentiation. Here we investigate the role of MED31, a highly conserved subunit of the Mediator complex, to determine the role this subunit plays in the maintenance of human mesenchymal stem cell (hMSC) state. Using siRNA-mediated knockdown of MED31 we demonstrate a decrease in self-renewal based on cell assays and monitoring of gene expression. In addition, in the absence of MED31, hMSCs also displayed a reduction in adipogenes...
Source: Molecular Biology Reports - July 13, 2018 Category: Molecular Biology Authors: Beadle EP, Straub JA, Bunnell BA, Newman JJ Tags: Mol Biol Rep Source Type: research

Apoptosis signal-regulating kinase 1 (ASK1) inhibition attenuates human airway smooth muscle growth and migration in chronic obstructive pulmonary disease (COPD).
Increased airway smooth muscle (ASM) mass is observed in COPD which is correlated with disease severity and negatively impact lung function. Thus, there is clear unmet clinical need for finding new therapies which can target airway remodeling and disease progression in COPD. Apoptosis signal-regulating kinase 1 (ASK1) is a ubiquitously expressed mitogen-activated protein kinase kinase kinase  activated by various stress stimuli, including reactive oxygen species, tumor necrosis factor-α, and lipopolysaccharide and is known to regulate cell proliferation. ASM cells from COPD patients are hyper-proliferative to mi...
Source: Clinical Science - July 13, 2018 Category: Biomedical Science Authors: Eapen, M. S., Kota, A., Vindin, H., McAlinden, K. D., Xenaki, D., Oliver, B. G., Deshpande, D. A., Sohal, S. S., Sharma, P. Tags: PublishAheadOfPrint Source Type: research

Interleukin-6-mediated trans-signaling inhibits transforming growth factor-{beta} signaling in trabecular meshwork cells Molecular Bases of Disease
Glaucoma is one of the major causes of blindness, and transforming growth factor-β2 (TGF-β2) has been found to be elevated in the aqueous humor of eyes with primary open-angle glaucoma (POAG). TGF-β2 in aqueous humor causes the glaucoma-related fibrosis of human trabecular meshwork (HTM), suggesting an important role of TGF-β in POAG pathogenesis. Here, we sought to elucidate the effects of IL-6 trans-signaling on TGF-β signaling in HTM cells. Using a multiplex immunoassay, POAG patients decreased IL-6 levels and increased soluble IL-6 receptor (sIL-6R) levels compared with the controls. In in vitro experiments, we ob...
Source: Journal of Biological Chemistry - July 13, 2018 Category: Chemistry Authors: Miyuki Inoue-Mochita, Toshihiro Inoue, Sachi Kojima, Akiko Futakuchi, Tomokazu Fujimoto, Saori Sato-Ohira, Utako Tsutsumi, Hidenobu Tanihara Tags: Cell Biology Source Type: research

Protein kinase C{alpha} drives fibroblast activation and kidney fibrosis by stimulating autophagic flux Molecular Bases of Disease
Kidney fibrosis is a histological hallmark of chronic kidney disease and arises in large part through extracellular matrix deposition by activated fibroblasts. The signaling protein complex mTOR complex 2 (mTORC2) plays a critical role in fibroblast activation and kidney fibrosis. Protein kinase Cα (PKCα) is one of the major sub-pathways of mTORC2, but its role in fibroblast activation and kidney fibrosis remains to be determined. Here, we found that transforming growth factor β1 (TGFβ1) activates PKCα signaling in cultured NRK-49F cells in a time-dependent manner. Blocking PKCα signaling with the chemical inhibitor ...
Source: Journal of Biological Chemistry - July 13, 2018 Category: Chemistry Authors: Xian Xue, Jiafa Ren, Xiaoli Sun, Yuan Gui, Ye Feng, Bingyan Shu, Wei Wei, Qingmiao Lu, Yan Liang, Weichun He, Junwei Yang, Chunsun Dai Tags: Signal Transduction Source Type: research

Synergic Effects of CD40 and CD86 Silencing in Dendritic Cells on the Control of Allergic Diseases
Conclusions: These results indicate, for the first time, that siRNA-induced CD40/CD86-silenced antigen-specific DCs have greater inhibitory effects against allergic responses than those of CD40- or CD86-silenced antigen-specific DCs alone. This study also suggests that the synergic effects of gene silencing in DCs by ≥2 siRNAs are useful for the control of allergic diseases. Thus, owing to the synergistic effects, CD40 and CD86 silencing has the potential to substantially improve the treatment of allergic diseases.Int Arch Allergy Immunol
Source: International Archives of Allergy and Immunology - July 12, 2018 Category: Allergy & Immunology Source Type: research

ClC-2 knockdown prevents cerebrovascular remodeling via inhibition of the Wnt/ β-catenin signaling pathway.
Conclusion: This study demonstrates that blocking ClC-2-mediated Cl- efflux inhibits AngII-induced cerebrovascular smooth muscle cell proliferation and migration by inhibiting the Wnt/β-catenin pathway. Our data indicate that downregulation of ClC-2 may be a viable strategy in the prevention of hyperplasia and remodeling of cerebrovascular smooth muscle cells. PMID: 29988306 [PubMed - in process]
Source: Cellular and Molecular Biology Letters - July 12, 2018 Category: Biochemistry Authors: Lu J, Xu F, Zhang Y, Lu H, Zhang J Tags: Cell Mol Biol Lett Source Type: research

MAC30 knockdown involved in the activation of the Hippo signaling pathway in breast cancer cells.
This study was carried out to determine the roles and the mechanisms of MAC30 in breast cancer. We used our own data and public database to analyze the MAC30 mRNA and protein levels in breast cancer tissues. In addition, we established MAC30 knockdown breast cancer cells using MAC30 siRNA. The roles of MAC30 were detected by using Soft agar assay, annexinV-FITC/PI double staining, and Transwell assay. Western blotting was used to analyze the potential mechanism(s) of MAC30 in these cells. We found that MAC30 mRNA and protein were higher in the cancer tissues compared to the matched normal tissues. MAC30 expression was asso...
Source: Biological Chemistry - July 12, 2018 Category: Chemistry Tags: Biol Chem Source Type: research

Inhibition of SETD7 protects cardiomyocytes against hypoxia/reoxygenation-induced injury through regulating Keap1/Nrf2 signaling
This study aimed to investigate the potential role of SETD7 in hypoxia/reoxygenation (H/R)-induced apoptosis of rat cardiomyocytes and reveal the underlying mechanism. Our results demonstrated that SETD7 expression was significantly up-regulated in cardiomyocytes in response to H/R injury. The inhibition of SETD7 by siRNA-mediated gene silencing significantly suppressed H/R-induced apoptosis and decreased the production of reactive oxygen species (ROS). The overexpression of SETD7 markedly enhanced H/R-induced apoptosis and ROS production. Moreover, the knockdown of SETD7 reduced the expression of Keap1 and promoted the ex...
Source: Biomedicine and Pharmacotherapy - July 12, 2018 Category: Drugs & Pharmacology Source Type: research

Tumor-associated macrophages promote the metastasis of ovarian carcinoma cells by enhancing CXCL16/CXCR6 expression
This study investigated the underlying mechanism by which C-X-C motif chemokine ligand 16 (CXCL16)/C-X-C motif chemokine receptor 6 (CXCR6) signaling is activated by tumor-associated macrophages and assists in regulating the metastasis of ovarian carcinoma. Specimens of ovarian carcinoma tissue and adjacent tissue were collected from 20 ovarian carcinoma patients. Human THP-1 cells were induced to differentiate into macrophages, which were then co-cultured with SKOV3 cells and low concentrations of tumor necrosis factor-α (TNF-α) to simulate the inflammatory microenvironment of ovarian carcinoma. Additionally, small inte...
Source: Pathology Research and Practice - July 12, 2018 Category: Pathology Source Type: research

Effect of celastrol on toll ‑like receptor 4‑mediated inflammatory response in free fatty acid‑induced HepG2 cells.
Effect of celastrol on toll‑like receptor 4‑mediated inflammatory response in free fatty acid‑induced HepG2 cells. Int J Mol Med. 2018 Jul 12;: Authors: Han LP, Sun B, Li CJ, Xie Y, Chen LM Abstract Toll‑like receptor 4 (TLR4)‑mediated immune and inflammatory signaling serves a pivotal role in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Our previous study demonstrated that celastrol treatment was able to improve hepatic steatosis and inhibit the TLR4 signaling cascade pathway in type 2 diabetic rats. The present study aimed to investigate the effects of celastrol on trigly...
Source: International Journal of Molecular Medicine - July 12, 2018 Category: Molecular Biology Authors: Han LP, Sun B, Li CJ, Xie Y, Chen LM Tags: Int J Mol Med Source Type: research

Combination of resveratrol and 5-azacytydine improves osteogenesis of metabolic syndrome mesenchymal stem cells.
Abstract Endocrine disorders have become more and more frequently diagnosed in humans and animals. In horses, equine metabolic syndrome (EMS) is characterized by insulin resistance, hyperleptinemia, hyperinsulinemia, inflammation and usually by pathological obesity. Due to an increased inflammatory response in the adipose tissue, cytophysiological properties of adipose derived stem cells (ASC) have been impaired, which strongly limits their therapeutic potential. Excessive accumulation of reactive oxygen species, mitochondria deterioration and accelerated ageing of those cells affect their multipotency and restric...
Source: J Cell Mol Med - July 12, 2018 Category: Molecular Biology Authors: Marycz K, Kornicka K, Irwin-Houston JM, Weiss C Tags: J Cell Mol Med Source Type: research

Sphingosine-1-phosphate induces airway smooth muscle cells proliferation, migration and contraction by modulating Hippo signaling effector YAP.
Abstract Sphingosine-1-phosphate (S1P), a bioactive lipid, has been shown to be elevated in the airways of individuals with asthma and modulates the airway smooth muscle cells (ASMCs) functions, yet its underlying molecular mechanisms are not completely understood. The aim of the present study is to address this issue. S1P induced yes-associated protein (YAP) de-phosphorylation and nuclear localization via S1PR2/3/Rho-associated protein kinase (ROCK) pathway, and this in turn increased forkhead box M1 (FOXM1) and cyclin D1 expression leading to ASMCs proliferation, migration and contraction. Pre-treatment of cells...
Source: Am J Physiol Lung Ce... - July 12, 2018 Category: Respiratory Medicine Authors: Liu L, Zhai C, Pan Y, Zhu Y, Shi W, Wang J, Yan X, Su X, Song Y, Gao L, Li M Tags: Am J Physiol Lung Cell Mol Physiol Source Type: research

Mangiferin inhibits High-Fat Diet induced vascular injury via regulation of PTEN/AKT/eNOS pathway
Publication date: Available online 10 July 2018Source: Journal of Pharmacological SciencesAuthor(s): Jiang Fang, Zhang De-long, Jia Min, Hao Wei-hua, Li Yong-junAbstractMangiferin (MAN), a naturally occurring polyphenol commonly found in mango and papaya. However, little is known its anti-vascular injury effects and the underlying mechanisms. This paper investigated the anti-vascular injury effect of MAN and the mechanisms in high-fat diet (HFD)-induced C57BL/6J mice and oxidized low-density lipoprotein (ox-LDL) induced human umbilical vein endothelial cells (HUVECs). The levels of plasma lipid, inflammatory factors and ni...
Source: Journal of Pharmacological Sciences - July 11, 2018 Category: Drugs & Pharmacology Source Type: research

P-Rex1 is dispensable for Erk activation and mitogenesis in breast cancer.
Authors: Barrio-Real L, Lopez-Haber C, Casado-Medrano V, Goglia AG, Toettcher JE, Caloca MJ, Kazanietz MG Abstract Phosphatidylinositol-3,4,5-Trisphosphate Dependent Rac Exchange Factor 1 (P-Rex1) is a key mediator of growth factor-induced activation of Rac1, a small GTP-binding protein widely implicated in actin cytoskeleton reorganization. This Guanine nucleotide Exchange Factor (GEF) is overexpressed in human luminal breast cancer, and its expression associates with disease progression, metastatic dissemination and poor outcome. Despite the established contribution of P-Rex1 to Rac activation and cell locomotion...
Source: Oncotarget - July 11, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Mutations of p53 decrease sensitivity to the anthracycline treatments in bladder cancer cells.
In conclusion, our results demonstrated that the anthracycline-induced resistance in bladder cancer cells positively correlated with TP53 mutations in the tetramerization domain in J82 and TCCSUP cells. Further, AD 312 and AD 198 are promising chemotherapeutic drugs for bladder cancer, especially in combination with PRIMA-1. PMID: 29983877 [PubMed]
Source: Oncotarget - July 11, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Silencing NIK potentiates anti-VEGF therapy in a novel 3D model of colorectal cancer angiogenesis.
Authors: Maracle CX, Jeucken KCM, Helder B, van Gulik TM, Steins A, van Laarhoven HWM, Tas SW Abstract Angiogenesis is essential for colorectal cancer (CRC) progression, as demonstrated by the beneficial clinical effects of therapeutics inhibiting VEGF signaling. However, alternative mechanisms of neovascularization can develop, resulting in treatment failure. Previously we demonstrated NF-κB-inducing kinase (NIK) contributes to pathological angiogenesis. Here, we investigate NIK as a therapeutic target in endothelial cells (EC) in CRC. To determine NIK expression levels in CRC tissues, we immunostained both prima...
Source: Oncotarget - July 11, 2018 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Self-assembly of tumor-targeting RNA nanoball for carrier-free delivery of therapeutic RNA
Publication date: 25 August 2018Source: Journal of Industrial and Engineering Chemistry, Volume 64Author(s): Sangwoo Han, Jong Bum LeeAbstractRolling circle transcription (RCT) has been studied for enhancing the delivery efficiency of therapeutic RNA by densely packing RNA strands with particle formation. This facile fabrication method has been successfully employed to generate RNA nanoballs containing functional short interference RNA. In addition, the nanoballs produced by RCT showed high stability from the nuclease degradation. With these advantages, using biotin-labeled ribonucleoside triphosphate (rNTP), target specif...
Source: Journal of Industrial and Engineering Chemistry - July 11, 2018 Category: Chemistry Source Type: research

Inhibition of immunoproteasome promotes angiogenesis via enhancing hypoxia-inducible factor-1α abundance in rats following focal cerebral ischaemia
In this study, we identified that inhibition of immunoproteasome LMP2 was able to enhance angiogenesis and facilitate neurological functional recovery in rats after focal cerebral ischemia/reperfusion. In vitro, oxygen-glucose deprivation and reperfusion (OGD/R) significantly enhanced the expression of immunoproteasome LMP2 and proteasome activities in primary culture astrocytes, but these beneficial effects were abolished by knockdown of LMP2 with siRNA transfection. Along with this, protein abundance of HIF-1α was significantly increased by inhibition LMP2 in vivo and in vitro and was associated with angiogenesis and ce...
Source: Brain, Behavior, and Immunity - July 11, 2018 Category: Neurology Source Type: research

Protective effect of berberine against cardiac ischemia/reperfusion injury by inhibiting apoptosis through the activation of Smad7
Publication date: April 2018Source: Molecular and Cellular Probes, Volume 38Author(s): Weidong Yao, Xin Wang, Kun XiaoAbstractBerberine (BBR) is an isoquinnoline derivative alkaloid extracted from Rhizoma Coptidis that has the potential to protect myocardial tissues from ischemia/reperfusion (I/R) injuries. We attempted to evaluate the effect of BBR on the proliferation and apoptosis of a hypoxia/reoxygenation (H/R) cell model and to reveal the mechanism driving the improving function of BBR myocardial tissues. The H/R cell model was established using H9c2 rat cardiac myoblasts. The cell viability, apoptotic rates, and cel...
Source: Molecular and Cellular Probes - July 11, 2018 Category: Molecular Biology Source Type: research

OGG1 regulates the level of symmetric dimethylation of histone H4 arginine-3 by interacting with PRMT5
In this study, we focused on the roles of OGG1 in histone modification. First, to study the effects of OGG1 on histone modification, the protein levels of symmetric dimethylation of histone H4 arginine-3 (H4R3me2s) were determined by western blot analysis following the knockdown or overexpression of OGG1. Second, the molecular mechanisms by which OGG1 regulates H4R3me2s were assessed by co-immunoprecipitation (CO-IP) assays in mouse embryonic fibroblast (MEF) wild-type (WT) and Ogg−/− cells. Finally, to verify the regulation of H4R3me2s by OGG1 on specific genes, chromatin immunoprecipitation (CHIP) was performed on ME...
Source: Molecular and Cellular Probes - July 11, 2018 Category: Molecular Biology Source Type: research

Lethal (2) giant larvae regulates pleural mesothelial cell polarity in pleural fibrosis
In this study, we observed that PMC polarity was lost in fibrotic pleura. Next we found increased Lethal (2) giant larvae (Lgl) bound with aPKC and PAR-6B competing against PAR-3A in PAR complex, which led to cell polarity loss. Then we demonstrated that Lgl1 siRNA prevented cell polarity loss in PMCs, and Lgl1 conditional knockout (ER-Cre+/−Lgl1flox/flox) attenuated pleural fibrosis in a mouse model. Our data indicated that Lgl1 regulates cell polarity of PMCs, inhibition of Lgl1 and maintenance of cell polarity in PMCs could be a potential therapeutic treatment approach for pleural fibrosis.
Source: Biochimica et Biophysica Acta (BBA) Molecular Cell Research - July 11, 2018 Category: Molecular Biology Source Type: research

c-Abl phosphorylation of Yin Yang 1's conserved tyrosine 254 in the spacer region modulates its transcriptional activity
In conclusion, we demonstrate the novel role of c-Abl kinase in regulation of YY1's transcriptional activity, linking YY1 regulation with c-Abl tyrosine kinase signaling pathways.Graphical abstract
Source: Biochimica et Biophysica Acta (BBA) Molecular Cell Research - July 11, 2018 Category: Molecular Biology Source Type: research

Modeling endophilin-mediated Aβ disposal in glioma cells
Publication date: Available online 4 July 2018Source: Biochimica et Biophysica Acta (BBA) - Molecular Cell ResearchAuthor(s): Bing Sun, Ping Fan, Meijian Liao, Yaou ZhangAbstractAutophagy dysregulation has emerged in age-related neurological diseases (Ulland et al.; Matheoud et al.; Ashkenazi et al. [[1], [2], [3]]). Alzheimer Disease (AD), the most common progressive neurodegenerative disorder, is characterized by the accumulation of amyloid-β (Aβ) plaques caused by aberrant Aβ metabolism (Qiang et al.; Sevigny et al.; Ittner et al. [[4], [5], [6]]). Glia constitute the brain immune system and ingest extracellular Aβ ...
Source: Biochimica et Biophysica Acta (BBA) Molecular Cell Research - July 11, 2018 Category: Molecular Biology Source Type: research

Neuroprotection against 6-OHDA toxicity in PC12 cells and mice through the Nrf2 pathway by a sesquiterpenoid from Tussilago farfara
Publication date: September 2018Source: Redox Biology, Volume 18Author(s): Joohee Lee, Kwangho Song, Eugene Huh, Myung Sook Oh, Yeong Shik KimAbstractOxidative stress plays a key role in neurodegenerative diseases such as Alzheimer's and Parkinson's diseases. Therefore, the nuclear factor-E2-related factor 2 (Nrf2), a key regulator of the antioxidative response, is considered to be important as a therapeutic target for neurodegenerative diseases. We investigated the underlying mechanism of Nrf2-mediated neuroprotective effects against oxidative stress in the PC12 cell line by 7β-(3-ethyl-cis-crotonoyloxy)-1α-(2-methylbut...
Source: Redox Biology - July 11, 2018 Category: Biology Source Type: research

Effects of the stimuli-dependent enrichment of 8-oxoguanine DNA glycosylase1 on chromatinized DNA
Publication date: September 2018Source: Redox Biology, Volume 18Author(s): Wenjing Hao, Tianyang Qi, Lang Pan, Ruoxi Wang, Bing Zhu, Leopoldo Aguilera-Aguirre, Zsolt Radak, Tapas K. Hazra, Spiros A. Vlahopoulos, Attila Bacsi, Allan R. Brasier, Xueqing Ba, Istvan BoldoghAbstract8-Oxoguanine DNA glycosylase 1 (OGG1) initiates the base excision repair pathway by removing one of the most abundant DNA lesions, 8-oxo-7,8-dihydroguanine (8-oxoG). Recent data showed that 8-oxoG not only is a pro-mutagenic genomic base lesion, but also functions as an epigenetic mark and that consequently OGG1 acquire distinct roles in modulation o...
Source: Redox Biology - July 11, 2018 Category: Biology Source Type: research

Carbon monoxide releasing molecule-2 attenuates Pseudomonas aeruginosa-induced ROS-dependent ICAM-1 expression in human pulmonary alveolar epithelial cells
Publication date: September 2018Source: Redox Biology, Volume 18Author(s): Chiang-Wen Lee, Cheng-Hsun Wu, Yao-Chang Chiang, Yuh-Lien Chen, Kuo-Ting Chang, Chu-Chun Chuang, I-Ta LeeAbstractPseudomonas aeruginosa (P. aeruginosa) infection in the lung is common in patients with cystic fibrosis (CF). Intercellular adhesion molecule-1 (ICAM-1) is known to play a key role in lung inflammation. Acute inflammation and its timely resolution are important to ensure bacterial clearance and limit tissue damage. Carbon monoxide (CO) has been shown to exert anti-inflammatory effects in various tissues and organ systems. Here, we explore...
Source: Redox Biology - July 11, 2018 Category: Biology Source Type: research

Polydatin prevents fructose-induced liver inflammation and lipid deposition through increasing miR-200a to regulate Keap1/Nrf2 pathway
Publication date: Available online 5 July 2018Source: Redox BiologyAuthor(s): Xiao-Juan Zhao, Han-Wen Yu, Yan-Zi Yang, Wen-Yuan Wu, Tian-Yu Chen, Ke-Ke Jia, Lin-Lin Kang, Rui-Qing Jiao, Ling-Dong KongAbstractOxidative stress is a critical factor in nonalcoholic fatty liver disease pathogenesis. MicroRNA-200a (miR-200a) is reported to target Kelch-like ECH-associated protein 1 (Keap1), which regulates nuclear factor erythroid 2-related factor 2 (Nrf2) anti-oxidant pathway. Polydatin (3,4′,5-trihydroxy-stilbene-3-β-D-glucoside), a polyphenol found in the rhizome of Polygonum cuspidatum, have anti-oxidative, anti-inflammat...
Source: Redox Biology - July 11, 2018 Category: Biology Source Type: research

High circulatory leptin mediated NOX-2-peroxynitrite-miR21 axis activate mesangial cells and promotes renal inflammatory pathology in nonalcoholic fatty liver disease
Publication date: July 2018Source: Redox Biology, Volume 17Author(s): Firas Alhasson, Ratanesh Kumar Seth, Sutapa Sarkar, Diana A. Kimono, Muayad S. Albadrani, Diptadip Dattaroy, Varun Chandrashekaran, Geoffrey I. Scott, Samir Raychoudhury, Mitzi Nagarkatti, Prakash Nagarkatti, Anna Mae Diehl, Saurabh ChatterjeeAbstractHigh circulatory insulin and leptin followed by underlying inflammation are often ascribed to the ectopic manifestations in non-alcoholic fatty liver disease (NAFLD) but the exact molecular pathways remain unclear. We have shown previously that CYP2E1-mediated oxidative stress and circulating leptin in NAFLD...
Source: Redox Biology - July 11, 2018 Category: Biology Source Type: research

Neuralized1a regulates asymmetric division in mouse Lewis lung carcinoma cells
Publication date: 1 August 2018Source: Life Sciences, Volume 206Author(s): Liangsheng Kong, Jingyuan Li, Yongli Liu, Zhiwei Sun, Shixia Zhou, Junling Tang, Ting Ye, Jianyu Wang, H. Rosie XingAbstractAsymmetric division (ASD), the unique characteristic of normal stem cells, is regarded as a stemness marker when applied to the study of cancer stem cells (CSCs). However, the role of ASD in the self-renewal of CSCs and its regulation remain largely unknown. Here, we first established a mouse Lewis lung carcinoma CSC cell line that could undergo asymmetric division (LLC-ASD cells) derived from the parental mouse Lewis lung carc...
Source: Life Sciences - July 11, 2018 Category: Biology Source Type: research

Exogenous hydrogen sulfide ameliorates high glucose-induced myocardial injury & inflammation via the CIRP-MAPK signaling pathway in H9c2 cardiac cells
In this study, we hypothesize that exogenous H2S may protect cardiac cells against high glucose (HG)-induced myocardial injury and inflammation with the involvement of the CIRP-MAPK signaling pathway.Main methodsH9c2 cardiac cells cultured under HG conditions were transfected with siRNA and different inhibitors for detecting the effects of sodium hydrogen sulfide (NaHS) (a H2S donor) on cell biological processes. The cardiac cell viability and LDH activity were determined by CCK-8 and LDH kit. ELISA was employed to measure the levels of inflammatory factors, while 2′,7′-dichlorofluorescein diacetate (DCFH-DA) to evalua...
Source: Life Sciences - July 11, 2018 Category: Biology Source Type: research

CRIP1 promotes cell migration, invasion and epithelial-mesenchymal transition of cervical cancer by activating the Wnt/β‑catenin signaling pathway
In conclusion, CRIP1 promotes cell migration and invasion, mediates EMT and activates the Wnt/β‑catenin signaling pathway in CC.
Source: Life Sciences - July 11, 2018 Category: Biology Source Type: research

Fibulin-1 interacts with Sex Hormone Binding Globulin and is linked to less aggressive estrogen-dependent breast cancers
In this study we investigated the expression of fibulins, their functional relationship with SHBG and involvement in behavior of estrogen-sensitive breast cancer.Main methodsGene expression of fibulins was performed by Real time-PCR on two estrogen-sensitive breast cancer cell lines, MCF-7 and T47D. Fibulin-1 protein expression and localization were determined by Western blot and immunofluorescence. SHBG interaction with-fibulin-1 was assessed by GST-pull down assay. MCF-7 cell growth and gene expression, after fibulin-1 silencing by siRNA, were evaluated. Finally, the expression of fibulin-1 was correlated to clinical and...
Source: Life Sciences - July 11, 2018 Category: Biology Source Type: research

Daidzein-rich isoflavone aglycones inhibit cell growth and inflammation in endometriosis
In conclusion, DRIAs inhibit cellular proliferation in endometriosis, thus representing a potential therapeutic option for the management of endometriosis.
Source: The Journal of Steroid Biochemistry and Molecular Biology - July 11, 2018 Category: Biochemistry Source Type: research

Molecular mechanisms underlying progesterone-induced cytoplasmic retention of p27 in breast cancer cells
Publication date: Available online 27 June 2018Source: The Journal of Steroid Biochemistry and Molecular BiologyAuthor(s): Hui-Chen Wang, Wen-Sen LeeAbstractIt has been reported that progesterone (P4) can contribute to the aggressiveness of human breast cancers through promoting cytoplasmic localization of p27 and stimulating proliferation. However, the molecular mechanisms underlying P4-induced cytoplasmic retention of p27 are still unclear. Here, we demonstrated that P4 (12.5–100 nM) concentration-dependently increased the number of T47D and MCF-7 cells. P4 (50 nM) also time-dependently increased the levels of p27 ...
Source: The Journal of Steroid Biochemistry and Molecular Biology - July 11, 2018 Category: Biochemistry Source Type: research

Impairment of the Gnα11-controlled expression of claudin-1 and MMP-9 and collective migration of human breast cancer MCF-7 cells by DHEAS
Publication date: Available online 21 April 2018Source: The Journal of Steroid Biochemistry and Molecular BiologyAuthor(s): Neha Upmanyu, Ahmed Bulldan, Dimitrios Papadopoulos, Raimund Dietze, Viveka Nand Malviya, Georgios Scheiner-BobisAbstractAlthough dehydroepiandrosterone sulfate (DHEAS) constitutes the most abundant steroid in humans, in-depth investigations of its effects are rather scarce. We address here DHEAS effects on the estrogen receptor-positive metastatic human breast cancer cell line MCF-7. We focus on DHEAS-mediated signaling that might influence expression of claudin-1 and matrix metalloproteinase-9 (MMP-...
Source: The Journal of Steroid Biochemistry and Molecular Biology - July 11, 2018 Category: Biochemistry Source Type: research

Apoptosis signal regulating kinase-1 and NADPH oxidase mediate human amylin evoked redox stress and apoptosis in pancreatic beta-cells
Publication date: Available online 6 April 2018Source: Biochimica et Biophysica Acta (BBA) - BiomembranesAuthor(s): Sanghamitra Singh, Diti Chatterjee Bhowmick, Satyabrata Pany, Myungkuk Joe, Noor Zaghlula, Aleksandar M. JeremicAbstractMisfolded toxic human islet amyloid polypeptide or amylin (hA) and plasma membrane-associated redox complex, NADPH oxidase (NOX), have been implicated in the islet β-cell demise associated with type-2 diabetes mellitus (T2DM). Studies show that hA accumulation is stressful to β-cells and that misfolding of human amylin evokes redox stress and activates mitogen activated protein (MAP) kinas...
Source: Biochimica et Biophysica Acta (BBA) Biomembranes - July 11, 2018 Category: Biochemistry Source Type: research

Direct and specific inhibition of constitutive nitric oxide synthase uniquely regulates brush border membrane Na-absorptive pathways in intestinal epithelial cells
Publication date: 1 September 2018Source: Nitric Oxide, Volume 79Author(s): Balasubramanian Palaniappan, Uma SundaramAbstractPharmacological manipulations of constitutive nitric oxide (cNO) levels have been shown to have variable effects on Na absorption in vivo and in vitro in different tissues. Species differences, untoward in vivo effects (e.g. ENS, blood flow) and pharmacological non-specificity may account for these confounding observations. Thus, to directly and specifically determine the effect of cNO on brush border membrane Na/H exchange (NHE3) and Na-dependent glucose co-transport (SGLT-1), we inhibited cNO sy...
Source: Nitric Oxide - July 11, 2018 Category: Chemistry Source Type: research

Avobenzone suppresses proliferative activity of human trophoblast cells and induces apoptosis mediated by mitochondrial disruption
This study suggests that avobenzone induces mitochondrial dysfunction-mediated apoptosis leading to abnormal placentation during early pregnancy.
Source: Reproductive Toxicology - July 11, 2018 Category: Toxicology Source Type: research

Theabrownin triggers DNA damage to suppress human osteosarcoma U2OS cells by activating p53 signalling pathway.
Abstract Osteosarcoma becomes the second leading cause of cancer death in the younger population. Current outcomes of chemotherapy on osteosarcoma were unsatisfactory to date, demanding development of effective therapies. Tea is a commonly used beverage beneficial to human health. As a major component of tea, theabrownin has been reported to possess anti-cancer activity. To evaluate its anti-osteosarcoma effect, we established a xenograft model of zebrafish and employed U2OS cells for in vivo and in vitro assays. The animal data showed that TB significantly inhibited the tumour growth with stronger effect than t...
Source: J Cell Mol Med - July 11, 2018 Category: Molecular Biology Authors: Jin W, Zhou L, Yan B, Yan L, Liu F, Tong P, Yu W, Dong X, Xie L, Zhang J, Xu Y, Li C, Yuan Q, Shan L, Efferth T Tags: J Cell Mol Med Source Type: research

Heat-shock transcription factor 1 is critically involved in the ischaemia-induced cardiac hypertrophy via JAK2/STAT3 pathway.
Abstract Cardiac hypertrophy after myocardial infarction (MI) is an independent risk factor for heart failure. Regression of cardiac hypertrophy has emerged as a promising strategy in the treatment of MI patients. Here, we have been suggested that heat-shock transcription factor 1 (HSF1) is a novel repressor of ischaemia-induced cardiac hypertrophy. Ligation of left anterior descending coronary was used to produce MI in HSF1-deficient heterozygote (KO), HSF1 transgenic (TG) mice and their wild-type (WT) littermates, respectively. Neonatal rat cardiomyocytes (NRCMs) were treated by hypoxia to mimic MI in vitro. The...
Source: J Cell Mol Med - July 11, 2018 Category: Molecular Biology Authors: Yuan L, Qiu L, Ye Y, Wu J, Wang S, Wang X, Zhou N, Zou Y Tags: J Cell Mol Med Source Type: research

Inhibition of the Nrf2/HO-1 Axis Suppresses the Mitochondria-Related Protection Promoted by Gastrodin in Human Neuroblastoma Cells Exposed to Paraquat
AbstractMitochondria are double-membrane organelles involved in the transduction of energy from different metabolic substrates into adenosine triphosphate (ATP) in mammalian cells. The oxidative phosphorylation system is comprised by the activity of the respiratory chain and the complex V (ATP synthase/ATPase). This system is dependent on oxygen gas (O2) in order to maintain a flux of electrons in the respiratory chain, since O2 is the final acceptor of these electrons. Electron leakage from this complex system leads to the continuous generation of reactive species in the cells. The mammalian cells exhibit certain mechanis...
Source: Molecular Neurobiology - July 11, 2018 Category: Neurology Source Type: research

Characterization of the essential role of bone morphogenetic protein 9 (BMP9) in osteogenic differentiation of mesenchymal stem cells (MSCs) through RNA interference
Publication date: June 2018Source: Genes & Diseases, Volume 5, Issue 2Author(s): Shujuan Yan, Ruyi Zhang, Ke Wu, Jing Cui, Shifeng Huang, Xiaojuan Ji, Liping An, Chengfu Yuan, Cheng Gong, Linghuan Zhang, Wei Liu, Yixiao Feng, Bo Zhang, Zhengyu Dai, Yi Shen, Xi Wang, Wenping Luo, Bo Liu, Rex C. Haydon, Michael J. LeeAbstractMesenchymal stem cells (MSCs) are multipotent stem cells and capable of differentiating into multiple cell types including osteoblastic, chondrogenic and adipogenic lineages. We previously identified BMP9 as one of the most potent BMPs that induce osteoblastic differentiation of MSCs although exact molec...
Source: Genes and Diseases - July 10, 2018 Category: Genetics & Stem Cells Source Type: research

Silencing of PRR11 suppresses cell proliferation and induces autophagy in NSCLC cells
Publication date: June 2018Source: Genes & Diseases, Volume 5, Issue 2Author(s): Lian Zhang, Yunlong Lei, Ying Zhang, Yi Li, Youquan Bu, Fangzhou Song, Chundong ZhangAbstractOur previous studies have demonstrated that proline-rich protein 11 (PRR11) is a novel tumor-related gene and implicates in regulating the proliferation in lung cancer. However, its precise role in cell cycle progression remains unclear. Our recent evidences show that PRR11 silencing has an effect on autophagy in non-small-cell lung cancer (NSCLC) cells. Two human NSCLC cell lines, H1299 and A549 were transiently transfected with against PRR11 siRNA. T...
Source: Genes and Diseases - July 10, 2018 Category: Genetics & Stem Cells Source Type: research

Role of PERK-eIF2α signaling pathway in fetal male rats with hypospadias induced by di-n-butyl phthalate
This study aims to explore the role of PERK-eIF2α signaling pathway in fetal male rats with hypospadias induced by maternal exposure to di-n-butyl phthalate (DBP). DBP was used to treat pregnant SD rats by gastric intubation from gestation day (GD) 14–18 to construct a hypospadias rat model. The amount, weight, anogenital distance (AGD), and hypospadias incidence of rats were recorded and the genital tubercle (GT) of fetal male rats was collected on GD 19. Western blotting was performed to detect the expressions of PERK-eIF2α pathway- and autophagy-related proteins, and cell apoptosis was detected using TUNEL method. T...
Source: The Kaohsiung Journal of Medical Sciences - July 10, 2018 Category: Universities & Medical Training Source Type: research