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Polyinosinic acid sodium

Cat No.:V83625 Purity: ≥98%
Polyinosinic acid sodium
Polyinosinic acid sodium Chemical Structure CAS No.: 33378-44-8
Product category: TLR
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
500mg
Other Sizes
Official Supplier of:
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Product Description
Polyinosinic acid sodium is the sodium form of Polyinosinic acid. Polyinosinic acid is a single-stranded homopolymeric nucleic acid and a ligand for Toll-like receptor 3 (TLR3). Polyinosinic acid enhances cellular immune responses through TLR3 and TRIF. Polyinosinic acid has potential applications in immunomodulation.
Polyinosinic acid sodium is the sodium form of Polyinosinic acid, a single-stranded homonucleic acid that acts as a Toll-like Receptor 3 (TLR3) ligand. By engaging TLR3 and TRIF, it enhances cellular immune responses. It has potential applications in immune regulation. It has a CAS number of 33378-44-8. Storage recommendations include powder at -20°C for 3 years and in solvent at -80°C for 1 year.
Biological Activity I Assay Protocols (From Reference)
Targets
Polyinosinic acid sodium targets Toll-like Receptor 3 (TLR3), a pattern recognition receptor that recognizes double-stranded RNA and plays a critical role in antiviral immunity. As a TLR3 ligand, it activates the innate immune system through the TRIF-dependent signaling pathway. This activation leads to the production of pro-inflammatory cytokines and type I interferons, enhancing cellular immune responses.
ln Vitro
In vitro studies demonstrate that Polyinosinic acid sodium is a TLR3 ligand that enhances cellular immune responses through TLR3 and TRIF. As a single-stranded homonucleic acid, it activates the innate immune system. The compound has potential applications in immune regulation. Detailed in vitro activity data, including specific EC50 values and cytokine induction profiles, are not extensively documented in the available literature.
ln Vivo
In vivo activity of Polyinosinic acid sodium is related to its function as a TLR3 agonist that modulates immune responses through activation of the innate immune system. By engaging TLR3 and TRIF, the compound enhances cellular immune responses. It has potential applications in immune regulation. Detailed in vivo efficacy data from animal models, including antiviral and immunomodulatory studies, are not extensively documented in the available literature.
Enzyme Assay
The in vitro receptor binding assay for Polyinosinic acid sodium involves measuring its agonistic activity at Toll-like Receptor 3 (TLR3). Cell-based reporter assays using HEK293 cells expressing human TLR3 and an NF-κB-driven luciferase reporter are commonly employed. Cells are treated with varying concentrations of Polyinosinic acid sodium, and TLR3 activation is measured by luciferase activity. Cytokine production (IFN-β, IL-6, TNF-α) is measured by ELISA in immune cell cultures. Standard protocols include appropriate controls such as poly(I:C) positive controls.
Cell Assay
In vitro cell-based assays for Polyinosinic acid sodium are conducted using immune cell lines such as dendritic cells, macrophages, or epithelial cells expressing TLR3. Cells are treated with the compound at various concentrations, and TLR3 activation is assessed by measuring cytokine production (IFN-β, IL-6, TNF-α) using ELISA or qPCR. Cell surface marker expression is evaluated by flow cytometry to assess immune cell activation. Standard protocols include appropriate positive controls such as poly(I:C) and vehicle controls.
Animal Protocol
In vivo animal studies for Polyinosinic acid sodium are typically conducted using mouse models to evaluate TLR3-mediated immune activation and antiviral responses. Animals are administered the compound via intraperitoneal or intravenous routes at various doses. Immune responses are assessed by measuring serum cytokine levels and evaluating immune cell activation. The compound's potential in immune regulation and antiviral therapy is investigated. Standard protocols include appropriate controls such as vehicle-treated groups and known TLR3 agonists.
ADME/Pharmacokinetics
Pharmacokinetic properties of Polyinosinic acid sodium include its solubility in H2O at 100 mg/mL with ultrasonic assistance. The compound has a formula of (C10H13N4O8P)x.xNa. Storage recommendations include 4°C, sealed storage away from moisture and light. As a nucleic acid-based compound, it is subject to degradation by nucleases in biological fluids. Detailed pharmacokinetic parameters such as half-life and bioavailability are not extensively documented. The compound is intended for research use only.
Toxicity/Toxicokinetics
Toxicity information for Polyinosinic acid sodium is limited in the available literature. As a TLR3 agonist, it may induce inflammatory responses that could lead to dose-dependent toxicity. Standard safety precautions for handling research chemicals should be followed. The compound is designated for research use only and is not for human therapeutic applications. No detailed acute or chronic toxicity data are available from the search results.
References

[1].Polyinosinic acid is a ligand for toll-like receptor 3. J Biol Chem. 2007 Aug 24;282(34):24759-66.

Additional Infomation
Polyinosinic acid sodium is the sodium form of Polyinosinic acid, a single-stranded homonucleic acid that acts as a TLR3 ligand. By engaging TLR3 and TRIF, it enhances cellular immune responses. It has potential applications in immune regulation. It has CAS 33378-44-8. It is soluble in H2O at 100 mg/mL. It is intended for research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C10H13N4O8P
Exact Mass
403.099
CAS #
33378-44-8
PubChem CID
177671740
Appearance
Solid powder
Hydrogen Bond Donor Count
5
Rotatable Bond Count
4
Heavy Atom Count
26
Complexity
555
Defined Atom Stereocenter Count
3
SMILES
C.C.C1=NC2=C(C(=O)N1)N=CN2[C@H]3[C@H](C([C@H](O3)COP(=O)(O)O)O)O.[Na]
InChi Key
UVNAEDPNYHQLAL-BCYSCTGWSA-N
InChi Code
InChI=1S/C10H13N4O8P.2CH4.Na/c15-6-4(1-21-23(18,19)20)22-10(7(6)16)14-3-13-5-8(14)11-2-12-9(5)17;;;/h2-4,6-7,10,15-16H,1H2,(H,11,12,17)(H2,18,19,20);2*1H4;/t4-,6?,7+,10-;;;/m1.../s1
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture and light.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
H2O :~100 mg/mL (with sonication)
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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