Specific activator for TLR3 (Toll-like receptor 3) and MDA5/Helicard.
Product Specification
| Alternative Name: | poly(I:C) . K |
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| Formula: | (C10H10N4NaO7P)x • (C9H11N3NaO7P)x |
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| Source: | Synthetic. |
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| CAS: | 31852-29-6 |
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| Quantity: | Aliquoted by weight of dry material. Contains polymer, residual salt and water. Sufficient for at least 200 cellular activation assays at 10-25µg/ml. |
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| Formulation: | Lyophilized. Sterile. |
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| Purity Detail: | Activity and endotoxin tested - TLRGRADE™. |
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| Endotoxin Content: | <0.002EU/µg (LAL test; BioWhittaker) |
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| Reconstitution: | For a 1mg/ml stock solution, dissolve the total vial content in 2ml (ALX-746-021-M002) or 5ml (ALX-746-021-M005) endotoxin-free buffer or water. To obtain optimal dissolving we recommend the following procedure: - Add 50% of the solvent and let dissolve for 10 min. - Add remaining 50% of the solvent and mix thoroughly. - Moderate warming may aid dissolving. |
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| Shipping: | Ambient |
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| Long Term Storage: | +4°C |
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| Use/Stability: | Aqueous stock solution is stable for 1 day when stored at +4°C. |
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| Handling: | Protect from light. For maximum product recovery after thawing, centrifuge the vial before opening the cap. After reconstitution, prepare aliquots and store at -20°C. |
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| Regulatory Status: | RUO - Research Use Only |
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Figure 1: Poly(I:C) . K (TLR
grade™) (synthetic) (Prod. No.
ALX-746-021) induces cytokine release in murine BM-derived macrophages.
Method: Poly(I:C) was added to bone marrow-derived murine macrophages in a 96-well plate at the indicated concentrations, cell supernatants were harvested after 24 hours and IFN α/β levels analyzed by cytokine ELISA."
Figure 2: Poly(I:C) . K (TLR
grade™) (synthetic) (Prod. No.
ALX-746-021) induces cytokine release in mouse
in vivo.
Method: Poly(I:C) was injected i.v. and plasma levels of IFN α/β were determined 2 hours later by cytokine ELISA."
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Product Literature References
N4BP1 negatively regulates NF-κB by binding and inhibiting NEMO oligomerization: H. Shi, et al.; Nat. Commun.
12, 1379 (2021),
Abstract;
Metabolic sialic acid blockade lowers the activation threshold of moDCs for TLR stimulation: C. Büll, et al.; Immunol. Cell Biol.
94, 408 (2017),
Abstract;
Enterovirus-Infected β-Cells Induce Distinct Response Patterns in BDCA1+ and BDCA3+ Human Dendritic Cells: B. M. Schulte, et al.; PLoS One
10, e0121670 (2015),
Application(s): Cell Culture,
Abstract;
Full Text
CD14 and TRIF govern distinct responsiveness and responses in mouse microglial TLR4 challenges by structural variants of LPS: T. Regen, et al.; Brain Behav. Immun.
25, 957 (2011),
Abstract;
Activation of murine macrophages via TLR2 and TLR4 is negatively regulated by a Lyn/PI3K module and promoted by SHIP1: S. Keck, et al.; J. Immunol.
184, 5809 (2010),
Abstract;
Full Text
Human Langerhans cells selectively activated via Toll-like receptor 2 agonists acquire migratory and CD4+T cell stimulatory capacity: M. Peiser, et al.; J. Leukoc. Biol.
83, 1118 (2008),
Abstract;
Differential roles of MDA5 and RIG-I helicases in the recognition of RNA viruses: H. Kato, et al.; Nature
441, 101 (2006),
Abstract;
The dsRNA binding site of human Toll-like receptor 3: J.K. Bell, et al.; PNAS
103, 8792 (2006),
Abstract;
Subcellular localization of Toll-like receptor 3 in human dendritic cells: M. Matsumoto, et al.; J. Immunol.
171, 3154 (2003),
Abstract;
General Literature References
Noncanonical inflammasome activation by intracellular LPS independent of TLR4.: N. Kayagaki, et al.; Science
341, 1246 (2013),
Abstract;
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