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Chemical Structure| 3133-16-2 Chemical Structure| 3133-16-2

Structure of 4-Octyl Itaconate
CAS No.: 3133-16-2

Chemical Structure| 3133-16-2

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4-Octyl itaconate is the endogenous metabolite of itaconate with anti-inflammatory activity. It can decrease cytokine production and protect against lipopolysaccharide-induced lethality in vivo.

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Product Citations

Product Citations

Wu, Yu-tong ; Xu, Wen-ting ; Zheng, Li ; Wang, Sheng ; Wei, Juan ; Liu, Mei-yun , et al.

Abstract: Acute respiratory distress syndrome (ARDS) is a high-mortality pulmonary disorder characterized by an intense inflammatory response and a cytokine storm. As of yet, there is no proven effective therapy for ARDS. Itaconate, an immunomodulatory derivative accumulated during inflammatory macrophage activation, has attracted widespread attention for its potent anti-inflammatory and anti-oxidative properties. This study pointed to explore the protective impacts of 4-octyl itaconate (4-OI) on ARDS. The results showed that lung injury was attenuated markedly after 4-OI pre-treatment, as represented by decreased pulmonary edema, inflammatory cell infiltration, and production of inflammatory factors. LPS stimulation induced NLRP3-mediated pyroptosis in vitro and in vivo, as represented by the cleavage of gasdermin D (GSDMD), IL-18 and IL-1β release, and these changes could be prevented by 4-OI pretreatment. Mechanistically, 4-OI eliminated mitochondrial reactive oxygen species (mtROS) and mtDNA escaping to the cytosol through the opening mitochondrial permeability transition pore (mPTP) in alveolar macrophages (AMs) under oxidative stress. In addition, 4-OI pretreatment markedly down_x005f_x0002_regulated cyclic GMP-AMP synthase (cGAS), stimulator of interferon genes (STING) expression, and interferon regulatory factor 3 (IRF3) phosphorylation in vitro and in vivo. Meanwhile, inhibition of STING/IRF3 pathway alleviated NLRP3-mediated pyroptosis induced by LPS in vitro. Taken together, this study indicated that 4-OI ameliorated ARDS by rescuing mitochondrial dysfunction and inhibiting NLRP3-mediated macrophage pyroptosis in a STING/IRF3-dependent manner, which further revealed the potential mechanism of itaconate in preventing inflammatory diseases.

Keywords: 4-octyl itaconate ; Acute respiratory distress syndrome ; NLRP3 inflammasome ; Macrophage pyroptosis ; Mitochondrial dysfunction ; cGAS/STING pathway

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Product Details of 4-Octyl Itaconate

CAS No. :3133-16-2
Formula : C13H22O4
M.W : 242.31
SMILES Code : CCCCCCCCOC(CC(C(O)=O)=C)=O
MDL No. :MFCD31706409
InChI Key :KBASUIDPDITQHT-UHFFFAOYSA-N
Pubchem ID :14239884

Safety of 4-Octyl Itaconate

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Isoform Comparison

Biological Activity

In Vitro:

Cell Line
Concentration Treated Time Description References
MLE-12 cells 0.625 μM 12 hours To investigate the effect of itaconate on viral infection, results showed that low concentrations of OI could promote viral replication in MLE-12 cells. Signal Transduct Target Ther. 2024 Dec 27;9(1):371
Peritoneal macrophages (PMs) 250 μM 12 hours To investigate the effect of itaconate on viral infection, results showed that OI treatment increased VSV and IAV genome load. Signal Transduct Target Ther. 2024 Dec 27;9(1):371
HEK293T cells 250 μM 24 hours Overexpression of IRG1 reduced IL-1β cleavage and release Cell Metab. 2020 Sep 1;32(3):468-478. e7

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

4.13mL

0.83mL

0.41mL

20.63mL

4.13mL

2.06mL

41.27mL

8.25mL

4.13mL

 

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