The long term stability of this product in solution is not been investigated. However, aqueous solutions are expected to be stable for at least 6 months when stored in working aliquots at -20°C. Please see the link below to review the product datasheet for additional information:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/143/182/p9582pis.pdf
P9582
Acide polyinosinique–polycytidylique potassium salt
with buffer salts, TLR ligand tested
Synonyme(s) :
Poly (I:C), Poly(I) • Poly(C)
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About This Item
Le tarif et la disponibilité ne sont pas disponibles actuellement.
Produits recommandés
Niveau de qualité
Essai
≥99% (less than 1% free nucleotides, TLC)
Forme
lyophilized powder
Composition
Poly(I) • Poly(C), 10% (balance buffer salts as sodium chloride and sodium phosphate)
Conditions de stockage
desiccated
Température de stockage
−20°C
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Application
TLR3 reconnaît l′ARN double brin et constitue un effecteur majeur de la réponse immunitaire contre les pathogènes viraux. L′acide polyinosinique–polycytidylique [Poly(I) • Poly(C)] est un homopolymère double brin utilisé comme ARN modèle pour étudier la signalisation cellulaire au niveau de TLR3. Poly(IC) est un ligand TRIF-dépendant du toll-like receptor-3 (TLR3).
Actions biochimiques/physiologiques
La transfection de poly (I:C) dans les cellules NIT-1 a été utilisée comme modèle d′apoptose induite par les ARN double brin intracellulaires des cellules β. Dix-huit heures après la transfection, 45 % des cellules étaient apoptotiques, présentant une augmentation de la translocation de NF-kB, p50/p65 et un clivage des caspases 3 et 8, ainsi qu′une induction transcriptionnelle de la caspase 12, de Fas, d′IL-15 et de TRAIL (TNF receptor-associated ligand). Il a été suggéré que le poly(I:C) est l′un des meilleurs moyens d′obtenir des cellules dendritiques matures stables. Ces cellules dendritiques matures peuvent générer des réponses immunitaires efficaces in vitro après injection grâce à leur capacité à sécréter de l′IL-12 bioactive après la liaison de CD40. Le poly (I:C) a été utilisé comme adjuvant puissant pour stimuler les réponses immunitaires antitumorales spécifiques contre un vaccin à base de peptide.
Conditionnement
Conditionnement en fonction de la teneur en polynucléotides.
Autres remarques
Homopolymère double brin.
Notes préparatoires
Ce produit nécessite une force ionique pour maintenir la structure en double brin. La reconstitution à environ 10 mg/ml d′eau produit un polynucléotide dans une solution physiologique tamponnée au phosphate.
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, type N95 (US)
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Certificats d'analyse (COA)
Lot/Batch Number
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Les clients ont également consulté
William R Crum et al.
Brain, behavior, and immunity, 63, 50-59 (2016-12-13)
Genetic and environmental risk factors for psychiatric disorders are suggested to disrupt the trajectory of brain maturation during adolescence, leading to the development of psychopathology in adulthood. Rodent models are powerful tools to dissect the specific effects of such risk
Halime Kalkavan et al.
Nature communications, 8, 14447-14447 (2017-03-02)
Immune-mediated effector molecules can limit cancer growth, but lack of sustained immune activation in the tumour microenvironment restricts antitumour immunity. New therapeutic approaches that induce a strong and prolonged immune activation would represent a major immunotherapeutic advance. Here we show
Flavia S Mueller et al.
Brain, behavior, and immunity, 80, 406-418 (2019-04-14)
Maternal immune activation (MIA) models that are based on administration of the viral mimetic, poly(I:C), are widely used as experimental tools to study neuronal and behavioral dysfunctions in relation to immune-mediated neurodevelopmental disorders and mental illnesses. Evidence from investigations in
Jun-Sang Sunwoo et al.
Annals of clinical and translational neurology, 5(10), 1264-1276 (2018-10-24)
Maternal immune activation (MIA) is associated with an increased risk of autism spectrum disorder (ASD) in offspring. Herein, we investigate the altered expression of microRNAs (miRNA), and that of their target genes, in the brains of MIA mouse offspring. To
Wei-Li Wu et al.
Brain, behavior, and immunity, 62, 11-23 (2016-11-14)
Epidemiological studies show that maternal immune activation (MIA) during pregnancy is a risk factor for autism. However, mechanisms for how MIA affects brain development and behaviors in offspring remain poorly described. To determine whether placental interleukin-6 (IL-6) signaling is required
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What is the stability of this product in solution? For example, how long would a 5 mg/mL solution last when stored at -20 celcius?
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What is the size (bp) of this product?
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This product has a estimated size range of 272 - 4242 bases with a resulting molecular weight range of 90,000 - 1,400,000 daltons.
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Does the product P9582-5MG contain 5mg of polyI:C or 500ug (10%) of poly I:C and 4.9mg buffer salts?
1 answer-
This product contains 10% Poly (I:C) with sodium chloride and sodium phosphate buffer salts. Please see the link below to a sample Certificate of Analysis for further details regarding concentration of the Poly (I:C).
https://www.sigmaaldrich.com/certificates/sapfs/PROD/sap/certificate_pdfs/COFA/Q14/P9582-50MG0000213739.pdfHelpful?
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What is the difference between Polyinosinic-polycytidylic acid potassium salt Products P9582, P1038, P1530 and P0913?
1 answer-
Prod No. P9582 as well as Prod. Nos. P1530 and P0913 are double-stranded with one strand of Poly(I) and one strand of Poly(C). Prod. No. P1038 is a single-stranded RNA analog with C and I randomly making up the polynucelotide strand. Double-stranded Prod. No. P9582 is a potassium salt while double-stranded Prod. Nos. P0913 and P1038 are sodium salts. Prod. No. P0913 is gamma-irradiated. None of the other products have been gamma-irradiated. Unlike the other products, only approximately 10% of the total mass of Prod. No. P9582 is actually polynucleotide. The remaining 90% is buffer salts as sodium chloride and sodium phosphate.
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How stable is Product P9582, Polyinosinic-polycytidylic acid potassium salt, in solution?
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RNA and synthetic RNA analogues will be very stable in aqueous solution as long as the solutions are not contaminated with RNase.
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What is the molecular weight of Product P9582, Polyinosinic-polycytidylic acid potassium salt?
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The molecular weight may vary from lot to lot with a range from 90,000 to 1,400,000 with an average of 200,000 to 500,000.
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Should Polyinosinic-polycytidylic acid potassium salt Product P9582 or P1038 be used for cell activation?
1 answer-
For cell activation, synthetic double-stranded RNA is widely used as ligand of Toll-like receptor 3 (TLR3) in place of what is supposed to be the natural ligand (viral dsRNA). The double stranded RNA homopolymer, i.e. Poly(I):Poly(C), Prod. No. P9582 can be used for this application. P1038 is a single-stranded RNA and will not activate TLR3.
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Why is the total mass of Product P9582, Polyinosinic-polycytidylic acid potassium salt, in my bottle much greater than the designated package size?
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The package size is based on the polynucleotide content. However, since the polynucleotide is supplied with sodium chloride and sodium phosphate buffer salts, its mass represented by the package size is approximately 10% of the total mass present in the bottle.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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