ssRNA40 sodium
Based on 1 Customer Validation
ssRNA40 sodium (R-1075 sodium) is a single-stranded RNA40 derived from HIV-1. ssRNA40 sodium activates the TLR7, TLR8, TLR2, RIG-I, MDA5, MyD88, Caspase-3, IRE1α, NLRP3 inflammasome and IRF7 signaling pathways. ssRNA40 sodium alters mRNA expression in neutrophils, induces pro-inflammatory cytokines, ROS, autophagy (autophagy), pyroptosis (pyroptosis), neuronal death, neurodegeneration, aggregate formation and NK cell activation. ssRNA40 sodium activates the expression of CD62L, CD11b, CD69, MX1, OAS1, ATG7, LC3B and XBP1 in immune cell and neuronal populations. ssRNA40 sodium causes cortical neuron loss and axonal damage in mice in a TLR7-dependent manner. ssRNA40 sodium can be used in research on HIV-1 infection, neurodegeneration, COVID-19 and HIV-associated neurological disorders.
For research use only. We do not sell to patients.
- Purity: 98.34%
- Molecular Weight:6618.03 (free acid)
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Storage:
-20°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
All Caspase Isoforms
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Biological Activity
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TLR7 |
TLR8 |
ssRNA40 sodium (3 ng/μL; 3 h) downregulates the mRNA expression level of TLR2, upregulates the mRNA expression levels of TLR7, TLR8, RIG-I and MDA5, but has no effect on the mRNA expression level of TLR4 in purified human neutrophils[1].
Co-administration of ssRNA40 sodium (3 ng/μL; 3 h) with TLR agonists significantly upregulates the mRNA expression of TLR2, TLR4, TLR7, TLR8, RIG-I and MDA5 in purified human neutrophils from healthy donors in a TLR agonist-dependent manner[1].
ssRNA40 sodium (3 ng/μL; 8 h) significantly reduces the expression level of CD62L, promotes the secretion of IL-6 and TNF-α, and increases the production of ROS in purified human neutrophils, whereas it exerts no significant effect on the expression of CD11b[1].
ssRNA40 sodium (0-20 μg/mL; 0-6 days) induces dose-dependent and time-dependent cell death in primary cortical neurons from wild-type mice in a TLR7-dependent, cell-autonomous, and MyD88-dependent manner (treatment with 10 μg/mL for 4 days reduces cell viability by approximately 30%), whereas primary cortical neurons from TLR7-knockout mice are completely protected[2].
ssRNA40 sodium (10 μg/mL; 36 h) induces cell death in N1E-115 mouse neuroblastoma cells[2].
ssRNA40 sodium (10 μg/mL; 3 days) activates caspase-3 in primary mouse cortical neurons, and inhibition of caspase-3 blocks ssRNA40-induced neuronal cell death[2].
ssRNA40 sodium (1-25 μg/mL; 6-24 h) induces dose-dependent and time-dependent secretion of TNF-α, IL-6, MCP-1 and RANTES (but not IL-10) from primary microglia of wild-type mice in a TLR7-dependent manner, whereas primary microglia from TLR7-knockout mice do not secrete these cytokines upon ssRNA40 stimulation[2].
ssRNA40 sodium (2 μg/mL; 1-24 h) activates the TLR8/IRE1α-XBP1 pathway in human MDDCs, induces XBP1 splicing and sXBP1 promoter binding, and significantly promotes the expression of proinflammatory cytokines (IL-1β, IL-6, TNFα) at both mRNA and protein levels, with all these effects dependent on the activities of TLR8 and IRE1α[3].
ssRNA40 sodium (6 h) activates CD3−CD56+/− NK cells in HIV-1-negative peripheral blood mononuclear cells (PBMCs); when ssRNA40 is complexed with Dotap, the activation effect is significantly enhanced, with the median percentage of CD69+ NK cells reaching 28.8% after 6 h of stimulation[4].
ssRNA40 sodium (5 μg/mL; 24-48 h) activates the NLRP3 inflammasome in human primary monocyte-derived microglia (HMG), induces the substantial expression and secretion of pro-inflammatory cytokines (IL-1β, IL-18) and neurotoxic cytokines (C1q, IL-1α, TNF-α), and the release of IL-1β depends on the activities of NLRP3 and caspase-1[5].
Supernatant from HMG activated by ssRNA40 sodium (5 μg/mL; 48 h) induces significant neurotoxicity in human primary neurons (HPN), including reduced cell viability and neurite damage[5].
ssRNA40 sodium (5 μg/mL; 24 h) induces NLRP3-dependent mitochondrial damage in HMG, including increased ROS production and loss of mitochondrial membrane potential[5].
ssRNA40 sodium (5 μg/mL; 24 h) upregulates the expression of autophagy/mitophagy receptors (SQSTM1, OPTN, PINK1, Parkin) and induces their mitochondrial recruitment in HMG and HFMG[5].
ssRNA40 sodium (5 μg/mL; 24-48 h) impairs autophagic flux in HMG, which in turn leads to persistent activation of the NLRP3 inflammasome, activation of caspase-1, and pyroptosis[5].
ssRNA40 sodium (2 μg/mL; 16 h) induces robust IFN-α production in primary human plasmacytoid dendritic cells (pDC), and this response is significantly dependent on the TLR7 signaling pathway and autophagy; inhibition of either pathway drastically reduces IFN-α secretion[6].
ssRNA40 sodium (2 μg/mL; 16 h) upregulates the expression of autophagy-related proteins (ATG7 and LC3-II) and induces the formation of a large number of autophagosomes in primary human pDCs[6].
ssRNA40 sodium (2 μg/mL; 12 h) induces IRF7 activation (nuclear translocation and phosphorylation) in primary human pDCs and promotes the co-expression of activated IRF7 with autophagic LC3B puncta; inhibition of autophagy or the mTOR signaling pathway attenuates this activation[6].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Neutrophils
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Concentration:3 ng/μL
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Incubation Time:3 h
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Result:Decreased TLR2 mRNA expression, increases TLR7, TLR8, RIG-I, and MDA5 mRNA expression, and has no effect on TLR4 mRNA expression.
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Cell Line:Mouse primary cortical neurons
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Concentration:10 μg/mL
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Incubation Time:4 days
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Result:Resulted to axonal damage and a reduction in the number of neurons.
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Cell Line:N1E-115 mouse neuroblastoma cells
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Concentration:10 μg/mL
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Incubation Time:36 h
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Result:Reduced relative viability of N1E-115 cells to ~40% of control values.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:C57BL/6J (8- to 10-week-old, wild-type; TLR7 knockout)[2]
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Dosage:10 µg
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Administration:i.t.; single injection
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Result:Induced axonal loss in the corpus callosum and hippocampus in 8 out of 9 wild-type animals.
Induced neuronal loss in the cerebral cortex in 7 out of 9 wild-type animals.
Reduced total NeuN-positive cortical neurons by ~20% compared to control wild-type mice.
Showed activated microglia (marked by TNF-α immunostaining) in the cerebral cortex of wild-type mice.
Caused no axonal or neuronal damage in TLR7KO mice.
Resulted in cortical NeuN-positive cell counts in TLR7KO mice that did not differ from control conditions.
Triggered no activated microglia in TLR7KO mice.
Detected no significant leukocyte influx in cerebrospinal fluid.
Chemical Information
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Appearance Solid
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Molecular Weight 6618.03 (free acid)
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Color Off-white to light yellow
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SMILES
[ssRNA40 (sodium)]
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Synonyms
R-1075 sodium
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
H2O : ≥ 100 mg/mL
* "≥" means soluble, but saturation unknown.
Purity & Documentation
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Data Sheet (280 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2242 KB)
References
[1]. Giraldo DM, et al. HIV-1-derived single-stranded RNA acts as activator of human neutrophils. Immunol Res. 2016;64(5-6):1185-1194. [Content Brief]
[2]. Lehmann SM, et al. Extracellularly delivered single-stranded viral RNA causes neurodegeneration dependent on TLR7. J Immunol. 2012;189(3):1448-1458. [Content Brief]
[3]. Fernández JJ, et al. Innate IRE1α-XBP1 activation by viral single-stranded RNA and its influence on lung cytokine production during SARS-CoV-2 pneumonia. Genes Immun. 2024;25(1):43-54. [Content Brief]
[4]. Alter G, et al. Single-stranded RNA derived from HIV-1 serves as a potent activator of NK cells. J Immunol. 2007 Jun 15;178(12):7658-66. [Content Brief]
[5]. Rawat P, et al. Human immunodeficiency virus Type-1 single-stranded RNA activates the NLRP3 inflammasome and impairs autophagic clearance of damaged mitochondria in human microglia. Glia. 2019;67(5):802-824. [Content Brief]
[6]. Zhou D, et al. Production of interferon α by human immunodeficiency virus type 1 in human plasmacytoid dendritic cells is dependent on induction of autophagy. J Infect Dis. 2012;205(8):1258-1267. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
- ssRNA40
- R-1075
- ssRNA 40
- ssRNA-40
- R1075
- R 1075
- Toll-like Receptor (TLR)
- MyD88
- Caspase
- Reactive Oxygen Species (ROS)
- Autophagy
- Pyroptosis
- HIV
- Neutrophils
- Mouse primary cortical neurons
- N1E-115 cells
- primary mouse cortical neurons
- primary microglia
- C57BL/6J mice
- HIV-1 infection
- neurodegeneration
- COVID-19
- HIV-associated neurological disorders
- Inhibitor
- inhibitor
- inhibit