Query: siRNA

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Mitochondrial respiratory chain deficiency inhibits lysosomal hydrolysis.
Abstract Mitochondria are key organelles for cellular metabolism, and regulate several processes including cell death and macroautophagy/autophagy. Here, we show that mitochondrial respiratory chain (RC) deficiency deactivates AMP-activated protein kinase (AMPK, a key regulator of energy homeostasis) signaling in tissue and in cultured cells. The deactivation of AMPK in RC-deficiency is due to increased expression of the AMPK-inhibiting protein FLCN (folliculin). AMPK is found to be necessary for basal lysosomal function, and AMPK deactivation in RC-deficiency inhibits lysosomal function by decreasing the activity...
Source: Autophagy - March 27, 2019 Category: Cytology Authors: Fernandez-Mosquera L, Yambire KF, Couto R, Pereyra L, Pabis K, Ponsford AH, Diogo CV, Stagi M, Milosevic I, Raimundo N Tags: Autophagy Source Type: research

Inhibition of Calcium/Calmodulin-Dependent Protein Kinase II α Suppresses Oxidative Stress in Cerebral Ischemic Rats Through Targeting Glucose 6-Phosphate Dehydrogenase.
Inhibition of Calcium/Calmodulin-Dependent Protein Kinase IIα Suppresses Oxidative Stress in Cerebral Ischemic Rats Through Targeting Glucose 6-Phosphate Dehydrogenase. Neurochem Res. 2019 Mar 27;: Authors: Wei Y, Wang R, Teng J Abstract Ischemic stroke is a leading cause of mortality and morbidity worldwide, and oxidative stress plays a significant role in the ischemia stage and reperfusion stage. Previous studies have indicated that both calcium/calmodulin-dependent protein kinase II (CaMKII) and glucose 6-phosphate dehydrogenase (G6PD) are involved in the oxidative stress. Thus, the aim of this st...
Source: Neurochemical Research - March 27, 2019 Category: Neuroscience Authors: Wei Y, Wang R, Teng J Tags: Neurochem Res Source Type: research

Spleen tyrosine kinase ‑induced JNK‑dependent NLRP3 activation is involved in diabetic cardiomyopathy.
Spleen tyrosine kinase‑induced JNK‑dependent NLRP3 activation is involved in diabetic cardiomyopathy. Int J Mol Med. 2019 Mar 27;: Authors: Li S, Liu R, Xue M, Qiao Y, Chen Y, Long G, Tian X, Hu Y, Zhou P, Dong X, Qi Z, Cui Y, Shen Y Abstract Diabetic cardiomyopathy (DCM) is a leading contributor to the increased morbidity and mortality rates associated with diabetes. Persistent inflammation has previously been reported to be involved in the pathogenesis of DCM. However, the exact underlying molecular mechanisms remain to be fully elucidated. In the present study, the role of spleen tyrosine kinas...
Source: International Journal of Molecular Medicine - March 27, 2019 Category: Molecular Biology Authors: Li S, Liu R, Xue M, Qiao Y, Chen Y, Long G, Tian X, Hu Y, Zhou P, Dong X, Qi Z, Cui Y, Shen Y Tags: Int J Mol Med Source Type: research

A reactive oxygen species-responsive dendrimer with low cytotoxicity for efficient and targeted gene delivery
Publication date: Available online 25 March 2019Source: Chinese Chemical LettersAuthor(s): Yueqi Wang, Changjian Li, Libo Du, Yang LiuAbstractNonviral vectors have been attracting more attention for several advantages in gene delivery and the development of nonviral gene carriers with high delivery efficiency and low cytotoxicity has long been a key project. Starburst polyamidoamine dendrimers are a class of synthetic polymers with unique structural and physical characteristics. However, when they are used as gene carrier, the gene transfection efficiency is not satisfactory. Herein, a novel thioketal-core polyamidoamine d...
Source: Chinese Chemical Letters - March 26, 2019 Category: Chemistry Source Type: research

Lovastatin attenuates angiotensin II induced cardiovascular fibrosis through the suppression of YAP/TAZ signaling.
Abstract Angiotensin II (ANG II) is associated with fibrosis in both clinical and basic studies. Thus, we aimed to explore a mechanism by which ANG II induces fibrosis. 5 μM of ANG II was used in the in vitro study. The mouse cardiovascular fibrosis model was established by infused with AngII (1000 ng/kg/min) for 7 days and cotreated with lovastatin (10 mg/kg daily) or vehicle control (DMSO in saline). We found that ANG II activated yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ), two transcription factors that were shown to induce fibrosis. Inhibition of ras homol...
Source: Biochemical and Biophysical Research communications - March 26, 2019 Category: Biochemistry Authors: Wu P, Liu Z, Zhao T, Xia F, Gong L, Zheng Z, Chen Z, Yang T, Duan Q Tags: Biochem Biophys Res Commun Source Type: research

Eukaryotic elongation factor-2 kinase regulates the cross-talk between autophagy and pyroptosis in doxorubicin-treated human melanoma cells in vitro.
In this study, we investigated the regulatory role of eEF-2K in pyroptosis (a new form of programmed necrosis) in doxorubicin-treated human melanoma cells. We found that doxorubicin (0.5-5 μmol/L) induced pyroptosis in melanoma cell lines SK-MEL-5, SK-MEL-28, and A-375 with high expression of DFNA5, but not in human breast cancer cell line MCF-7 with little expression of DFNA5. On the other hand, doxorubicin treatment activated autophagy in the melanoma cells; inhibition of autophagy by transfecting the cells with siRNA targeting Beclin1 or by pretreatment with chloroquine (20 μmol/L) significantly augmented pyroptos...
Source: Acta Pharmacologica Sinica - March 26, 2019 Category: Drugs & Pharmacology Authors: Yu P, Wang HY, Tian M, Li AX, Chen XS, Wang XL, Zhang Y, Cheng Y Tags: Acta Pharmacol Sin Source Type: research

Cancers, Vol. 11, Pages 430: Store-Operated Calcium Entry Contributes to Cisplatin-Induced Cell Death in Non-Small Cell Lung Carcinoma
In this study, we showed that siRNA-mediated depletion of stromal interaction molecule 1 (STIM1) and transient receptor potential channel 1 (TRPC1), two players of the store-operated calcium entry, dramatically reduced CDDP cytotoxicity in NSCLC cells. This was associated with an inhibition of the DNA damage response (DDR) triggered by CDDP. Moreover, STIM1 depletion also reduced CDDP-dependent oxidative stress. In parallel, SOCE activation induced Ca2+ entry into the mitochondria, a major source of reactive oxygen species (ROS) within the cell. This effect was highly decreased in STIM1-depleted cells. We then conclude tha...
Source: Cancers - March 26, 2019 Category: Cancer & Oncology Authors: Roberta Gualdani Marie de Clippele Ikram Ratbi Philippe Gailly Nicolas Tajeddine Tags: Article Source Type: research

Resistin up-regulates LPL expression through the PPAR γ-dependent PI3K/AKT signaling pathway impacting lipid accumulation in RAW264.7 macrophages.
Resistin up-regulates LPL expression through the PPARγ-dependent PI3K/AKT signaling pathway impacting lipid accumulation in RAW264.7 macrophages. Cytokine. 2019 Mar 26;119:168-174 Authors: Li B, Fang J, He T, Yin S, Yang M, Cui H, Ma X, Deng J, Ren Z, Hu Y, Ye G, Zhang M, Geng Y, Gou L, Zuo Z Abstract Resistin is a cysteine-rich cytokine, which has been indicated as a mediator of insulin resistance and inflammation. Previous studies demonstrated that lipoprotein lipase (LPL) was an important enzyme that could mediate lipid accumulation in macrophages. Additionally, the intracellular molecules phospha...
Source: Cytokine - March 26, 2019 Category: Molecular Biology Authors: Li B, Fang J, He T, Yin S, Yang M, Cui H, Ma X, Deng J, Ren Z, Hu Y, Ye G, Zhang M, Geng Y, Gou L, Zuo Z Tags: Cytokine Source Type: research

Role of the ciRS-7/miR-7 axis in the regulation of proliferation, apoptosis and inflammation of chondrocytes induced by IL-1 β.
In this study, quantitative reverse-transcription PCR (qRT-PCR) was utilized to determine the relative expression of ciRS-7 and miR-7 in blood samples from OA patients compared with those from healthy individuals. Human OA chondrocytes (C28/12 cell line) were transfected with ciRS-7-siRNA, ciRS-7-cDNA, inhibitor or miR-7 mimic to investigate the influence of ciRS-7/miR-7 expression on chondrocyte apoptosis, inflammation and related signaling pathways. Decreased ciRS-7 expression and increased miR-7 expression were observed in OA blood samples. IL-1β exposure of chondrocytes significantly inhibited proliferation and promot...
Source: International Immunopharmacology - March 26, 2019 Category: Allergy & Immunology Authors: Zhou X, Jiang L, Fan G, Yang H, Wu L, Huang Y, Xu N, Li J Tags: Int Immunopharmacol Source Type: research

PKM2 Involved in Neuronal Apoptosis on Hypoxic-ischemic Encephalopathy in Neonatal Rats.
In this study, we have investigated the role of PKM2 in cortical neurons which suffered hypoxic-ischemic encephalopathy (HIE) in newborn rats. Immunohistochemistry and Western blot analysis revealed the protein expression of PKM2 peaking at 24 h after HIE. Double immunofluorescence labeling showed that PKM2 was mainly located in the neurons of the ipsilateral cerebral cortex, not in astrocytes or microglia. The increased level of active caspase-3 and the decreased level of phosphorylated AKT (p-AKT) were consistent with the PKM2 expression. TUNEL staining assay showed that PKM2 may participate in neuronal apoptosis in the...
Source: Neurochemical Research - March 25, 2019 Category: Neuroscience Authors: Wu Q, Ge W, Chen Y, Kong X, Xian H Tags: Neurochem Res Source Type: research

MicroRNA-92a promotes vascular smooth muscle cell proliferation and migration through the ROCK/MLCK signalling pathway.
In conclusion, the activation of ROCK/STAT3 and/or MLCK/STAT3 may up-regulate miR-92a expression, which subsequently inhibits KLF4 expression and promotes PDGF-BB-mediated proliferation and migration of VSMCs. This new downstream node in the ROCK/MLCK signalling pathway may offer a potential intervention target for treatment of atherosclerosis. PMID: 30907506 [PubMed - as supplied by publisher]
Source: J Cell Mol Med - March 25, 2019 Category: Molecular Biology Authors: Wang J, Zhang C, Li C, Zhao D, Li S, Ma L, Cui Y, Wei X, Zhao Y, Gao Y Tags: J Cell Mol Med Source Type: research

Tumor Chemosensitization through Oncogene Knockdown Mediated by Unique α-Tocopherylated Cationic Geminis.
Abstract Herein, siRNA transfection efficiency of a unique set of α-tocopherylated gemini lipids has been established in vitro and in vivo. High efficacy of oncogene silencing achieved using the biomacromolecular assembly, formed from siRNA complexes of co-liposomes containing an α-tocopherylated gemini lipid, has been utilized for tumor regression via chemosensitization. Delivery studies with the gemini bearing hydroxyethyl headgroup with octamethylene spacer (TH8S) pointed to a higher siRNA transfection efficacy than its analog without hydroxyethyl group (T8S). Owing to p53 upregulation, transfected cells show...
Source: Biomacromolecules - March 25, 2019 Category: Biochemistry Authors: Kamra M, Maiti B, Dixit A, Karande AA, Bhattacharya S Tags: Biomacromolecules Source Type: research

Genes, Vol. 10, Pages 247: Golgi Oncoprotein GOLPH3 Gene Expression Is Regulated by Functional E2F and CREB/ATF Promoter Elements
d Zubiaga The Golgi organelle duplicates its protein and lipid content to segregate evenly between two daughter cells after mitosis. However, how Golgi biogenesis is regulated during interphase remains largely unknown. Here we show that messenger RNA (mRNA) expression of GOLPH3 and GOLGA2, two genes encoding Golgi proteins, is induced specifically in G1 phase, suggesting a link between cell cycle regulation and Golgi growth. We have examined the role of E2F transcription factors, critical regulators of G1 to S progression of the cell cycle, in the expression of Golgi proteins during interphase. We show that promoter...
Source: Genes - March 25, 2019 Category: Genetics & Stem Cells Authors: Pe ñalver-González Vallejo-Rodr íguez Mentxaka Fullaondo Iglesias-Ara Field Zubiaga Tags: Article Source Type: research

Staphylococcus aureus Biofilm-Conditioned Medium Impairs Macrophage-Mediated Antibiofilm Immune Response by Upregulating KLF2 Expression Cellular Microbiology: Pathogen-Host Cell Molecular Interactions
Staphylococcus aureus infections associated with the formation of biofilms on medical implants or host tissue play a critical role in the persistence of chronic infections. One critical mechanism of biofilm infection that leads to persistent infection lies in the capacity of biofilms to evade the macrophage-mediated innate immune response. It is now increasingly apparent that microorganisms exploit the negative regulatory mechanisms of the pattern recognition receptor (PRR)-mediated inflammatory response to subvert host cell functions by using various virulence factors. However, the detailed molecular mechanism, along with...
Source: Infection and Immunity - March 25, 2019 Category: Infectious Diseases Authors: Alboslemy, T., Yu, B., Rogers, T., Kim, M.-H. Tags: Cellular Microbiology: Pathogen-Host Cell Molecular Interactions Source Type: research

Nimotuzumab inhibits epithelial –mesenchymal transition in prostate cancer by targeting the Akt/YB‐1/AR axis
In this study, we presented our novel findings that by targeting the Akt/YB‐1/AR axis, nimotuzumab significantly inhibited EMT of PC cells. Considering that EMT is a critical mechanism contributing to the metastatic spread of cancer cells, nimotuz umab may become a promising therapy for alleviating the malignant progression of PC. © 2019 IUBMB Life, 1–14, 2019
Source: IUBMB Life - March 25, 2019 Category: Research Authors: Sheng Hu, Yi ‐Xing Duan, Qiang Zhou, Yong Wang, Qiang Lu Tags: Research Communication Source Type: research

Inhibition of acid sphingomyelinase activity ameliorates endothelial dysfunction in db/db mice.
Abstract Acid sphingomyelinase (aSMase) plays an important role in endothelial dysfunction. Here, we show that elevated aSMase activity and ceramide content were reduced by desipramine treatment in diabetic animals. The inhibitor of aSMase, desipramine, improved vascular dysfunction in db/db mice. High glucose-induced upregulation of aSMase activity and ceramide levels were restored by treatment with aSMase siRNA or desipramine in endothelial cells. In addition, aSMase siRNA or desipramine treatment increased the release of nitric oxide (NO) and the phosphorylation of endothelial NO synthase (eNOS) in diabetic mou...
Source: Bioscience Reports - March 25, 2019 Category: Biomedical Science Authors: Jiang M, Huang S, Duan W, Liu Q, Lei M Tags: Biosci Rep Source Type: research

Upregulation of microRNA-148a inhibits proliferation, invasion and migration while promoting apoptosis of cervical cancer cells by downregulating RRS1.
CONCLUSION: Our study suggests that miR-148a downregulates RRS1 expression, thereby inhibiting the proliferation, migration and invasion while promoting cell apoptosis of cervical cancer cells. PMID: 30910849 [PubMed - as supplied by publisher]
Source: Bioscience Reports - March 25, 2019 Category: Biomedical Science Authors: Zhang Y, Sun B, Zhao L, Liu Z, Xu Z, Tian Y, Hao C Tags: Biosci Rep Source Type: research

Protective effect of berberine on high glucose and hypoxia-induced apoptosis via the modulation of HIF-1 α in renal tubular epithelial cells.
Protective effect of berberine on high glucose and hypoxia-induced apoptosis via the modulation of HIF-1α in renal tubular epithelial cells. Am J Transl Res. 2019;11(2):669-682 Authors: Zhang X, Guan T, Yang B, Chi Z, Wan Q, Gu HF Abstract Berberine (BBR), derived from Huanglian (Coptis chinensis), is a traditional Chinese herbal medicine. In the current study, we investigated the effects of BBR in high glucose (HG) and hypoxia-induced apoptosis with normal rat renal tubular epithelial (NRK-52E) and human kidney proximal tubular cells (HK-2) and further explored the underlying molecular mechanism of h...
Source: American Journal of Translational Research - March 24, 2019 Category: Research Tags: Am J Transl Res Source Type: research

Knockdown of GRHL2 inhibited proliferation and induced apoptosis of colorectal cancer by suppressing the PI3K/Akt pathway.
In conclusion, GRHL2 acted as an oncoprotein through regulating cell proliferation and apoptosis in CRC cells. The PI3K/Akt pathway was closely involved in the effects of GRHL2. Therefore, GRHL2 might be a therapeutic target for the CRC treatment. PMID: 30917932 [PubMed - as supplied by publisher]
Source: Gene - March 24, 2019 Category: Genetics & Stem Cells Authors: Hu F, He Z, Sun C, Rong D Tags: Gene Source Type: research

Prolyl isomerase Pin1 binds to and stabilizes acetyl CoA carboxylase 1 protein, thereby supporting cancer cell proliferation.
Authors: Ueda K, Nakatsu Y, Yamamotoya T, Ono H, Inoue Y, Inoue MK, Mizuno Y, Matsunaga Y, Kushiyama A, Sakoda H, Fujishiro M, Takahashi SI, Matsubara A, Asano T Abstract The prolyl isomerase Pin1 expression level is reportedly increased in most malignant tissues and correlates with poor outcomes. On the other hand, acetyl CoA carboxylase 1 (ACC1), the rate limiting enzyme of lipogenesis is also abundantly expressed in cancer cells, to satisfy the demand for the fatty acids (FAs) needed for rapid cell proliferation. We found Pin1 expression levels to correlate positively with ACC1 levels in human prostate cancers, ...
Source: Oncotarget - March 23, 2019 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Knockdown of serpin peptidase inhibitor clade C member  1 inhibits the growth of nasopharyngeal carcinoma cells.
Knockdown of serpin peptidase inhibitor clade C member 1 inhibits the growth of nasopharyngeal carcinoma cells. Mol Med Rep. 2019 Mar 14;: Authors: Xu J, Ying Y, Xiong G, Lai L, Wang Q, Yang Y Abstract Nasopharyngeal carcinoma (NPC) is a type of cancer originating in the nasopharynx. There are no NPC‑specific treatments available at present. Serpin peptidase inhibitor clade C member 1 (SERPINC1) serves roles in anticoagulation and anti‑inflammation. The aim of the present study was to investigate the role of SERPINC1 in the proliferation and apoptosis of NPC cells. Tumor and adjacent healthy ti...
Source: Molecular Medicine Reports - March 23, 2019 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Accumulation of hyaluronic acid in stromal cells modulates osteoclast formation by regulation of receptor activator of nuclear factor kappa-B ligand expression.
In this study, we investigated the effect and underlying mechanisms of HA accumulation on the expression of receptor activator of nuclear factor kappa-B ligand (RANKL) induced by 1α,25(OH)2D3 and dexamethasone in stromal cells, which support osteoclastogenesis. Degradation of HA by hyaluronidase (HA'ase) treatment enhanced the expression of RANKL in ST2 cells stimulated with 1α,25(OH)2D3 and dexamethasone. Down-regulation of hyaluronan synthase 2 (HAS2) expression by siRNA also stimulated RANKL expression induced by 1α,25(OH)2D3 and dexamethasone. Results from a cell co-culture system with bone marrow cell showed that 1...
Source: Biochemical and Biophysical Research communications - March 23, 2019 Category: Biochemistry Authors: Nakao Y, Hikiji H, Okinaga T, Takeuchi J, Habu M, Yoshiga D, Yoshioka I, Nishihara T, Ariyoshi W Tags: Biochem Biophys Res Commun Source Type: research

Involvement of mitogen-activated protein kinase pathways in ferrous iron-induced aquaporin-4 expression in cultured astrocytes.
In this study, we investigated the effect of ferrous iron overload on AQP4 expression in cultured mouse astrocytes. Primary cultures of astrocytes were exposed to ferrous iron, and the expression of AQP4 as well as the swelling of astrocyte were determined. AQP4 expression was inhibited by small interfering RNA (siRNA). The role of oxidative stress and mitogen-activated protein kinases (MAPKs) signaling pathway in ferrous iron-induced AQP4 expression upregulation were further studied. Ferrous iron exposure induced astrocyte death as well as cell swelling, and increased AQP4 expression. AQP4 gene silencing after siRNA trans...
Source: Neurotoxicology - March 23, 2019 Category: Neurology Authors: Zhong Z, Sun Y, Wang B, Sun Q, Yang G, Bian L Tags: Neurotoxicology Source Type: research

Age-dependent expression of the Vitamin D receptor and the protective effect of Vitamin D receptor activation on H2O2-induced apoptosis in rat intervertebral disc cells
Publication date: Available online 21 March 2019Source: The Journal of Steroid Biochemistry and Molecular BiologyAuthor(s): Tong Tong, Zhihui Liu, Hua Zhang, Jinglei Sun, Dongxia Zhang, Feng Wang, Dechao Miao, Yong ShenAbstractAccumulating evidence shows that genetic polymorphism of the vitamin D receptor (VDR) gene is associated with intervertebral disc degeneration (IDD), implying that VDR may be involved in the pathogenesis of IDD. However, the exact relationship between VDR and IDD remains unknown. The aim of this study was to investigate the age-dependent expression of VDR in rat intervertebral discs and to determine ...
Source: The Journal of Steroid Biochemistry and Molecular Biology - March 22, 2019 Category: Biochemistry Source Type: research

O-GlcNAcylation disrupts STRA6-retinol signals in kidneys of diabetes
ConclusionsO-GlcNAcylation significantly modified STRA6 and RALDH1, suppressed RBP4 binding activity, and disrupted retinol signals in the kidney of diabetes.General significanceThis study first indicates that STRA6-retinol signals were directly disrupted by O-GlcNAcylation in diabetic kidney.
Source: Biochimica et Biophysica Acta (BBA) General Subjects - March 22, 2019 Category: Biochemistry Source Type: research

Cardiac myocyte-specific expression of beta3-adrenergic receptors sustains AMPK activation and glucose uptake while reducing hypertrophy following pressure overload
ConclusionWe conclude that cardiac myocyte-specific expression of B3AR concurrently prevents the development of insulin resistance and maintains AMPK activation contributing to the protection from hypertrophic remodeling under hemodynamic stress.
Source: Archives of Cardiovascular Diseases Supplements - March 22, 2019 Category: Cardiology Source Type: research

Modulation of GSK - 3β/β - catenin cascade by commensal bifidobateria plays an important role for the inhibition of metaflammation-related biomarkers in response to LPS or non-physiological concentrations of fructose: An in vitro study
ConclusionWe describe a regulatory mechanism in which commensal bifidobacteria prevent LPS- and/or fructose-mediated transcriptional activation of metabolic disorder-causing factors (IL-1β, IL-6, TNF-α) and disruption of normal cellular energy metabolism by attenuating NF-kB activity and interfering with the Wnt/β-catenin pathway. The latter positively regulates NF-κB activity, thereby simultaneously reducing cellular triglyceride concentrations and enhancing cellular glucose consumption. This may be a molecular basis by which commensal bifidobacteria enhance intrinsic cellular tolerance against excess consumption of e...
Source: PharmaNutrition - March 22, 2019 Category: Nutrition Source Type: research

MST2 kinase regulates osteoblast differentiation by phosphorylating and inhibiting Runx2 in C2C12  cells.
The objective of this study was to investigate whether the MST pathway could modulate Runx2 and osteoblast differentiation. First, we found that Runx2 interacted with MST2 and SAV1 via the WW domain of SAV1 and amino acid 292-445 of Runx2 containing a PY motif. Results of OSE luciferase reporter assay revealed that co-expression of MST2 and SAV1 inhibited the transcriptional activity of Runx2 whereas siRNA-mediated down-regulation of Mst1 and Mst2 increased its activity. MST2 and SAV1 significantly reduced mRNA levels of osteoblast differentiation marker genes such as alkaline phosphatase and osteocalcin in differentiating...
Source: Biochemical and Biophysical Research communications - March 22, 2019 Category: Biochemistry Authors: Won GW, Sung M, Lee Y, Lee YH Tags: Biochem Biophys Res Commun Source Type: research

Slow relaxation during and after perturbation of bistable kinetics of gene expression.
Abstract After a short perturbation of a bistable genetic network, it returns to its initial steady state or transits to another steady state. The time scale characterizing such transient regimes can be appreciably longer compared to those of the degradation of the perturbed mRNAs and proteins. The author shows in detail the specifics of this slowdown of the transient kinetics using mean-field kinetic equations and Monte Carlo simulations. Attention is focused on nanocarrier-mediated delivery and release of short non-coding RNA (e.g., miRNA or siRNA) into cells with subsequent suppression of the populations of the...
Source: European Biophysics Journal : EBJ - March 22, 2019 Category: Physics Authors: Zhdanov VP Tags: Eur Biophys J Source Type: research

Ochratoxin A causes mitochondrial dysfunction, apoptotic and autophagic cell death and also induces mitochondrial biogenesis in human gastric epithelium cells.
Abstract Ochratoxin A (OTA) is a common natural contaminant found in human and animal food worldwide. Our previous work has shown that OTA can cause oxidative DNA damage, G2 arrest and malignant transformation of human gastric epithelium (GES-1) cells. Mitochondria are considered to be target for the action of many cytotoxic agents. However, the role of mitochondria in the cytotoxicity of OTA remains unknown. The aim of this study is to explore the putative role of mitochondria on OTA cytotoxicity by analyzing mitochondrial changes in GES-1 cells. The results showed that OTA treatment (5, 10, 20 µM) for differen...
Source: Archives of Toxicology - March 22, 2019 Category: Toxicology Authors: Li Q, Dong Z, Lian W, Cui J, Wang J, Shen H, Liu W, Yang J, Zhang X, Cui H Tags: Arch Toxicol Source Type: research

MK5 haplodeficiency decreases collagen deposition and scar size during post-myocardial infarction wound repair.
Abstract MK5 is a protein serine/threonine kinase activated by p38, ERK3, and ERK4 MAPKs. MK5 mRNA and immunoreactivity are detected in mouse cardiac fibroblasts and MK5-haplodeficiency attenuates the increase in collagen 1-a1 mRNA evoked by pressure overload. The present study examined the effect of MK5 haplodeficiency on reparative fibrosis following myocardial infarction (MI). Twelve-week-old MK5+/- and wild-type littermate (MK5+/+) mice underwent ligation of the left anterior descending coronary artery (LADL). Surviving mice were sacrificed 8- or 21-days post-MI. Survival rates did not differ significantly bet...
Source: American Journal of Physiology. Heart and Circulatory Physiology - March 22, 2019 Category: Physiology Authors: Nawaito S, Sahadevan P, Clavet-Lanthier MÉ, Pouliot P, Sahmi F, Shi Y, Gillis MA, Lesage F, Gaestel M, Sirois MG, Calderone A, Tardif JC, Allen BG Tags: Am J Physiol Heart Circ Physiol Source Type: research

Cancers, Vol. 11, Pages 406: Alpha6-Integrin Regulates FGFR1 Expression through the ZEB1/YAP1 Transcription Complex in Glioblastoma Stem Cells Resulting in Enhanced Proliferation and Stemness
Catherine SEVA Glioblastoma (GBM) is the most lethal primary brain tumor in adults and is known to be particularly aggressive and resistant to anti-cancer therapies, mainly due to the presence of GBM stem cells (GBMSC). By in vitro approaches supported by analysis from patients’ databases, we determined how α6-integrin and Fibroblast Growth Factor Receptor 1 (FGFR1) work in concert to regulate proliferation and stemness of GBMSC. We showed that α6-integrin regulates the expression of FGFR1 and its target gene Fokhead Box M1 (FOXM1) via the ZEB1/YAP1 transcription complex. Thes...
Source: Cancers - March 22, 2019 Category: Cancer & Oncology Authors: Aline KOWALSKI-CHAUVEL Valerie GOUAZE-ANDERSSON Laurent BARICAULT Elodie MARTIN Caroline DELMAS Christine TOULAS Elizabeth COHEN-JONATHAN-MOYAL Catherine SEVA Tags: Article Source Type: research

The role of autophagy in the overexpression of MUC5AC in patients with chronic rhinosinusitis.
CONCLUSIONS: In HNE-induced CRS, autophagy increases the secretion of MUC5AC by promoting the phosphorylation of JNK and c-Jun. PMID: 30909132 [PubMed - as supplied by publisher]
Source: International Immunopharmacology - March 22, 2019 Category: Allergy & Immunology Authors: Ye Y, Zhao J, Ye J, Jiang X, Liu H, Xie Y, Zhang J, Luo Q Tags: Int Immunopharmacol Source Type: research

Relationship between microRNA-27a and efficacy of neoadjuvant chemotherapy in gastric cancer and  mechanism in gastric cancer cell growth and metastasis.
CONCLUSION: Collectively, our study highlights that the high expression of miR-27a indicates the poor efficacy and prognosis of neoadjuvant chemotherapy in GC patients. Down-regulation of miR-27a can inhibit the growth and metastasis of GC cells via up-regulation of SFRP1. PMID: 30902884 [PubMed - as supplied by publisher]
Source: Bioscience Reports - March 22, 2019 Category: Biomedical Science Authors: Xu C, Cheng H, Li N, Zhou N, Tang X Tags: Biosci Rep Source Type: research

LincRNA-p21 suppresses glutamine catabolism and bladder cancer cell growth through inhibiting glutaminase (GLS) expression.
In this study, we investigated the involvement of lincRNA-p21 and glutamine catabolism in BC cell growth and found that ectopic linRNA-p21 expression reduced the proliferation and growth of BIU87 and 5637 cells. Opposite results were observed in lincRNA-p21 silenced J82 and T24 cells. The expression of glutaminase (GLS), intracellular level of glutamate and α-KG were negatively regulated by lincRNA-p21. GLS over-expression reversed the suppressive function of lincRNA-p21 on BC cell growth and proliferation. In contrast, GLS reduction by siRNA blunted the viability of lincRNA-p21 lowly-expressed BC cells. Furthermore, linc...
Source: Bioscience Reports - March 22, 2019 Category: Biomedical Science Authors: Zhou Q, Zhan H, Lin F, Liu Y, Yang K, Gao Q, Ding M, Liu Y, Huang W, Cai Z Tags: Biosci Rep Source Type: research

i-Fect Delivers siRNA to Study Angiogenesis in Brain Injury
This study revealed that LDHA, which is a known damage marker, promotes CNS-specific angiogenesis. LDHA-mediated angiogenesis depends on vimentin on the surface of vascular endothelial cells. The work described here proposes a novel mechanism by which neurodegeneration drives angiogenesis in the CNS.A mixture of ouri-FectTM and LDHA siRNA, in this study, were directly injected into mice cortexes: Hsiaoyun Lin, Rieko Muramatsu, Noriko Maedera, Hiroto Tsunematsu, Machika Hamaguchi, Yoshihisa Koyama, Mariko Kuroda, Kenji Ono, Makoto Sawada, Toshihide Yamashita.Extracellular Lactate Dehydrogenase A Release ...
Source: siRNA and DsiRNA Transfection Efficiency - February 19, 2018 Category: Neuroscience Tags: Angiogenesis Delivering siRNA to the CNS i-Fect Lactate Dehydrogenase A LDHA siRNA delivery to mouse brain Source Type: news

Delivering siRNA in vivo
New Publications Ouri-Fect transfection kit was one of the first products. This has resulted in it being widely used andfrequently published.We kick off 2018 with some new publications. Here we feature a study where researchers use our kit to deliver G-protein-coupled receptor C (MrgprC) siRNA in vivo. This receptor is part of the TRPV1 pathway.Ying-jun Liu, Xiao-xi Lin, Jian-qiao Fang, and Fang Fang. Involvement of MrgprC in electroacupuncture analgesia for attenuating CFA-induced thermal hyperalgesia by suppressing the TRPV1 pathway. Pre-pub-full text PDFImage: Expression of TRPV1 in rats treated with MrgrprC s...
Source: siRNA and DsiRNA Transfection Efficiency - January 13, 2018 Category: Neuroscience Tags: inflammatory pain intrathecal delivery of siRNA Mas-related G-protein-coupled receptor C MrgrpfC TRPV1 Source Type: news

Epigenetics and Pain Research
i-Fect Used to Study ImpactsOur i-Fect siRNA, miRNA and shRNA Trasfection Kit was recently used to study the impact of G9a-specific siRNA (AGUAACGGGCAUCAAUGC) on Mu Opioid Receptors: Yuhao Zhang, Shao-Rui Chen, Geoffroy Laumet, Hong Chen and Hui-Lin Pan. Nerve Injury Diminishes Opioid Analgesia through Lysine Methyltransferase-Mediated Transcriptional Repression of µ-Opioid Receptors in Primary Sensory Neurons. First Published on February 25, 2016, doi: 10.1074/jbc.M115.711812... In some SNL rats, G9a-specific siRNA (4 µg) or the negative control siRNA was administered intrathecally. G9a-specific siRNA(AGUAACGGGCAUC...
Source: siRNA and DsiRNA Transfection Efficiency - March 24, 2016 Category: Neuroscience Tags: epigenetics Ga9 Mu Opioid Receptor inhibitor i-Fect iFect intrathecal delivery of siRNA Morphine neuropathic pain Source Type: news

Delivery of siRNA, miRNA, shRNA and Plasmids Guaranteed
Potent and Frequently Published Transfection Solutions We have proven and frequently published transfection solutions. Powerful punch and versatility are now needed more than ever with the hyper growth in gene manipulation technologies like Sleeping BeautyTM and CRISPR-Cas9.We have published examples of the use of our solutions for delivering siRNA, miRNA, shRNA and plasmids both in vitro and in vivo. Here are some of your options. i-Fect ™ -A novel cationic lipid formulation specifically designed for efficient delivery of 27mer DsiRNAs(dicer substrate small Interfering RNAs)& 21mer siRNAs (small interfering RNA...
Source: siRNA and DsiRNA Transfection Efficiency - January 20, 2016 Category: Neuroscience Tags: DNA transfection i-Fect miRNA Delivery Methods p-fect Plasmid Transfection plasmids pn-Fect shRNA siRNA Source Type: news

Silencing Cytokines in-vivo with i-Fect
Knocking Down Cytokine to Study Pain ResponseWe have many unique applications published from researchers using our Transfection Kits in vitro and in vivo. Here researchers simultaneously 3 immune/inflammatory response cytokines in vivo: Byung Moon Choi, Soo Han Lee, Sang Mee An, Do Yang Park, Gwan Woo Lee, and Gyu-Jeong Noh. The time-course and RNA interference of TNF-α, IL-6, and IL-1β expression on neuropathic pain induced by L5 spinal nerve transection in rats. Korean J Anesthesiol. 2015 Apr;68(2):159-169. English. Published online March 30, 2015. http://dx.doi.org/10.4097/kjae.2015.68.2.159.Protocol: RNAs w...
Source: siRNA and DsiRNA Transfection Efficiency - April 8, 2015 Category: Neuroscience Tags: allodynia analgesia Gene Expression Analysis Gene Silencing i-Fect IL-1B IL-6 inflammatory pain intrathecal delivery of siRNA TNF-alpha Transfection Kits Source Type: news

i-Fect Delivers siRNA in vitro and in vivo
In this study data suggest the protective effects of EPO on NUV injuries are highly associated with the increase of p-Cx43, which improves GJIC to reduce neurotoxic substances: Ziyi Zhoua, Xiaobai Weib, Jun Xiang, Junpeng Gao, Lixin Wang, Jinsong You, Yefeng Cai , Dingfang Caid. Protection of erythropoietin against ischemic neurovascular unit injuries through the effects of connexin43. Biochemical and Biophysical Research Communications. doi:10.1016/j.bbrc.2015.02...The strands were incubated at 90°C for 5 min and then at 37°C for 1 h. SiRNA was prepared immediately before administration by mixing the RNA solution (1 μg...
Source: Neuromics - February 21, 2015 Category: Neuroscience Tags: Cerebral Ischemia Connexin 43 Delivering siRNA to the CNS EPO HDAC2 i-Fect Stroke Source Type: news

EPO Protects Against Cerebral Ischemia
In this study data suggest the protective effects of EPO on NUV injuries are highly associated with the increase of p-Cx43, which improves GJIC to reduce neurotoxic substances: Ziyi Zhoua, Xiaobai Weib, Jun Xiang, Junpeng Gao, Lixin Wang, Jinsong You, Yefeng Cai , Dingfang Caid. Protection of erythropoietin against ischemic neurovascular unit injuries through the effects of connexin43. Biochemical and Biophysical Research Communications. doi:10.1016/j.bbrc.2015.02...The strands were incubated at 90°C for 5 min and then at 37°C for 1 h. SiRNA was prepared immediately before administration by mixing the RNA solution (1 μg...
Source: siRNA and DsiRNA Transfection Efficiency - February 18, 2015 Category: Neuroscience Tags: cerebral ischemia Connexin 43 Delivering siRNA to the CNS i-Fect iFect siRNA transfection of neurons Source Type: news

Neuromics' Transfection Kits-Genes Studied
Delivering siRNA, miRNA, Plasmids and Viral Vectors for Gene Expression Analysis.I have shared the many genes researchers have studied using our Transfection Kits. These include: β-arrestin, ABCA, ASIC, β-arrestin, CAV1.2, CX3CR1, DOR, EHDAC2, LOVL4, IKBKAP, K+-ATPase, KV1.1, KV9.1 , neuroligin 2, The β3 subunit of the Na+,K+-ATPase, NTS1, NAV1.8, NTS1, NOV, Raf-1, RANK, SNSR1, hTert, NOV, Survivin, TLR4, Troy and TRPV1 and More!We can now add GPNMB to this list: Lili Hou, Yanfeng Zhang, Yong Yang, Kai Xiang, Qindong Tan, Qulian Guo. Intrathecal siRNA Against GPNMB Attenuates Nociception in a Rat Model of Neuropath...
Source: siRNA and DsiRNA Transfection Efficiency - July 23, 2014 Category: Neuroscience Tags: Delivering siRNA to the CNS Gene Expression Analysis Gene Silencing i-Fect in vivo siRNA pn-Fect tansfection Transfection Kits Source Type: news

Neuromics ' Transfection Kits-Genes Studied
Delivering siRNA, miRNA, Plasmids and Viral Vectors  for Gene Expression Analysis . I have shared the many genes researchers have studied using our Transfection Kits . These include: β-arrestin, ABCA, ASIC, β-arrestin, CAV1.2, CX3CR1, DOR, EHDAC2, LOVL4, IKBKAP, K+-ATPase, KV1.1, KV9.1 , neuroligin 2, The β3 subunit of the Na+,K+-ATPase, NTS1, NAV1.8, NTS1, NOV, Raf-1, RANK, SNSR1, hTert, NOV, Survivin, TLR4, Troy and TRPV1 and More! We can now add GPNMB to this list: Lili Hou, Yanfeng Zhang, Yong Yang, Kai Xiang, Qindong Tan, Qulian Guo. Intrathecal siRNA Against GPNMB Attenuates Nociception in a Rat Model of N...
Source: siRNA and DsiRNA Transfection Efficiency - July 23, 2014 Category: Neuroscience Tags: Delivering siRNA to the CNS Gene Expression Analysis Gene Silencing i-Fect in vivo siRNA pn-Fect tansfection Transfection Kits Source Type: news

i-Fect siRNA Transfection Successes
Meeting your Gene Expression Analysis Requirements.I have posted many success stories resulting from use of  Neuromics'  Neuromics' i-FectTM siRNA Transfection Kit. It has been 3 months since my last posting so here I would like to post some recent highlights. Here I feature customer publication demonstrating:Down regulation of Neuroligin 2-data showed unexpected upregulation and pronociceptive effects of the “inhibitory” NL2 in neuropathic pain, suggesting a functional shift of NL2 from inhibition to excitation that changed the synaptic ratio toward higher excitation.Role of IGFPB5 for survival of neurons in...
Source: siRNA and DsiRNA Transfection Efficiency - July 29, 2013 Category: Neuroscience Tags: Neuroligin 2 Gene berrant Histone Deacetylase2 gene IGFBP5 gene NL2 intraventicular delivery of siRNA ADAC2 i-Fect PSD95 intrathecal delivery of siRNA in vivo siRNA Source Type: news

i-Fect Delivers IGF1 siRNA to the Mouse Brain
Intraventricular Injections Used to Study Neuronal Survival During Post Natal DevelopmentNeuromics' i-FectTM Transfection Kit continue to be successfully used to deliver siRNA, shRNA and miRNA to cell cultures and the CNS in vivo (via intrathecal, epidural and intraventricular injection). Genes studied include: ABCA, ASIC, β-arrestin, CAV1.2, IGF1, CX3CR1, DOR, ELOVL4, IKBKAP, K+-ATPase, KV1.1, KV9.1 ,The β3 subunit of the Na+,K+-ATPase, NTS1, NAV1.8, NTS1, NOV, Raf-1, RANK,SNSR1, hTertTRPV1 NOV, Survivin, TLR4, Troy and TRPV1. Related Publications.It is always an honor for one our products to be referenced in one of the...
Source: siRNA and DsiRNA Transfection Efficiency - April 25, 2013 Category: Neuroscience Tags: siRNA delivery in-vivo siRNA delivery to mouse brain i-Fect Gene Silencing intraventicular injections IGF1 gene expression in vivo siRNA Source Type: news

i-Fect™ Delivers you siRNA Payload
Delivering siRNA to Dorsal Root Ganglia to Silence KV Receptors.Our i-Fect transfection kits continue to be used to optimize delivery in vivo and into hard to transfect cells like primary neurons. In these 2 latest expamples, researchers use i-Fect to deliver siRNA to KV Receptors in Rat DRGs. Knocking down these receptors enable the study of their role in pain modulation: John H. Winston, Sushil K. Sarna. Developmental Origins of Functional Dyspepsia-Like Gastric Hypersensitivity in Rats. Gastroenterology. Volume 144, Issue 3, March 2013, Pages 570–579.e3. dx.doi.org/10.1053/j.gastro.2012.11.001....intrathecal treatment...
Source: siRNA and DsiRNA Transfection Efficiency - March 16, 2013 Category: Neuroscience Tags: Kv9.1 Potassium Channel Subunit kv1.1 Potassium Channel Subunit Delivering siRNA to the CNS Transfection Kits KV Receptors i-Fect Dorsal root ganglia intrathecal delivery of siRNA in vivo siRNA Source Type: news

i-Fect ™ Delivers you siRNA Payload
Delivering siRNA to Dorsal Root Ganglia to Silence K V Receptors. Our i-Fect transfection kits continue to be used to optimize delivery in vivo and into hard to transfect cells like primary neurons . In these 2 latest expamples, researchers use i-Fect to deliver siRNA to K V Receptors in Rat DRGs. Knocking down these receptors enable the study of their role in pain modulation: John H. Winston, Sushil K. Sarna. Developmental Origins of Functional Dyspepsia-Like Gastric Hypersensitivity in Rats. Gastroenterology. Volume 144, Issue 3, March 2013, Pages 570 –579.e3. dx.doi.org/10.1053/j.gastro.2012.11.001....intrathecal...
Source: siRNA and DsiRNA Transfection Efficiency - March 16, 2013 Category: Neuroscience Tags: Delivering siRNA to the CNS Dorsal root ganglia i-Fect in vivo siRNA intrathecal delivery of siRNA KV Receptors kv1.1 Potassium Channel Subunit Kv9.1 Potassium Channel Subunit Transfection Kits Source Type: news

ABCA siRNA Transfection of Neurons & Astrocytes
In this study, Dr. Marina Guizzetti and his team use our i-Fect Kit and several other commercially available kits to knockdown ABCG1 and ABCG4: Jing Chen, Xiaolu Zhang, Handojo Kusumo, Lucio G. Costa, c, Marina Guizzettia. Cholesterol efflux is differentially regulated in neurons and astrocytes: Implications for brain cholesterol homeostasis. Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids, 1831 (2), p.263-275, Feb 2013. doi:10.1016/j.bbalip.2012.09.007. Abstract: Disruption of cholesterol homeostasis in the central nervous system (CNS) has been associated with neurological, neurodegenerative...
Source: siRNA and DsiRNA Transfection Efficiency - November 17, 2012 Category: Neuroscience Tags: ABCA1 i-Fect siRNA Delivery in vitro siRNA Transfection Efficiency siRNA transfection of neurons siRNA trasfection of astrocytes Source Type: news