BAY 11-7082

Biological Activity

BAY 11-7082 (BAY 11-7821) is an irreversible inhibitor of TNF-α-stimulated IκBα phosphorylation. BAY 11-7082 selectively and irreversibly inhibits NF-κB activation by blocking TNF-α-induced phosphorylation of IκB-α without affecting constitutive IκB-α phosphorylation. BAY 11-7082 inhibits the TNF-α-induced surface expression of adhesion molecules ICAM-1, VCAM-1, and E-selectin in human endothelial cells with IC50 values of 5-10 µM. BAY 11-7082 also reversibly activates MAP kinases and stimulates apoptosis. BAY 11-7082 rapidly and efficiently reduced the DNA binding of NF-kappaB in HTLV-I-infected T-cell lines and down-regulated the expression of the antiapoptotic gene, Bcl-x(L), regulated by NF-kappaB, whereas it had little effect on the DNA binding of another transcription factor, AP-1.

Furthermore, BAY 11-7082- induced apoptosis of primary ATL cells was more prominent than that of normal peripheral blood mononuclear cells, and apoptosis of these cells was also associated with down-regulation of NF-kappaB activity.

Product Citations

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  J Funct Foods. 2025 Dec 01; .

  Response surface analysis and anti-inflammatory activity of a potential postbiotic exopolysaccharide produced by probiotic Lacticaseibacillus paracasei K56
  BAY 11-7082 purchased from AbMole

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  mSphere. 2025 May 21; .

  Sudapyridine (WX-081) inhibits Mycobacterium tuberculosis by targeting ATP synthase and upregulating host innate immunity
  BAY 11-7082 purchased from AbMole

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  ACS Food Science & Technology. 2025 Mar 27.

  Impact of a Papain-Catalyzed Plastein Reaction of Salmon Skin Gelatin Hydrolysate and Exogenous Amino Acids on Anti-Inflammatory Activity in LPS-Stimulated Macrophages
  BAY 11-7082 purchased from AbMole

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  mSphere. 2024 Jul 24;e0025424.

  Clofazimine inhibits innate immunity against Mycobacterium tuberculosis by NF-κB
  BAY 11-7082 purchased from AbMole

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  Authorea. 2024 Jan 31.

  Chlorogenic acid mediates JAK-STAT1 and NF-κB pathways to promote M1 phenotype polarization in mouse bone marrow macrophages
  BAY 11-7082 purchased from AbMole

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  Journal of Functional Foods. 2023 Jul 31.

  Exopolysaccharides of Bifidobacterium longum subsp. infantis E4 on the immune and anti-inflammatory effects in vitro
  BAY 11-7082 purchased from AbMole

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  Foods. 2022 Jan 12;11(2):196.

  Impact of the Plastein Reaction of Casein Hydrolysates in the Presence of Exogenous Amino Acids on Their Anti-Inflammatory Effect in the Lipopolysaccharide-Stimulated Macrophages
  BAY 11-7082 purchased from AbMole

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  J Inflamm Res. 2021 Mar 17;14:917-928.

  Stable Cells with NF-KB-ZsGreen Fused Genes Created by TALEN Editing and Homology Directed Repair for Screening Anti-inflammation Drugs.
  BAY 11-7082 purchased from AbMole

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  Mediators Inflamm. 2019 Feb 19;2019:1082497.

  Astragaloside IV Suppresses High Glucose-Induced NLRP3 Inflammasome Activation by Inhibiting TLR4/NF-κB and CaSR.
  BAY 11-7082 purchased from AbMole

Customer Product Validations & Biological Datas

	Source	Biochem J (2013). Figure 2. Bay 11-7082
	Method	immunoblotting
	Cell Lines	human IL-1R cells
	Concentrations	15 μM
	Incubation Time	1 h
	Results	BAY 11-7082 completely suppressed the LPS-stimulated and IL-1-stimulated phosphorylation of the activation loop of IKKβ.

Protocol (for reference only)

Cell Experiment
Cell lines	HT29 cells
Preparation method	HT29 cells (40,000) were seeded on 8-chamber glass slides. After adherence, cells were either pretreated for 30 min with Bay 11-7082 (30 µM) or TPCA-1 (20 µM), or remained untreated.
Concentrations	30 µM
Incubation time	30 min

Animal Experiment
Animal models	Female SCID/beige mice
Formulation	1% DMSO
Dosages	20 mg/kg
Administration	Intraperitoneal administration

Chemical Information

Molecular Weight	207.25
Formula	C10H9NO2S
CAS Number	19542-67-7
Solubility (25°C)	DMSO ≥ 40 mg/mL
Storage	Powder          -20°C   3 years ;  4°C   2 years In solvent       -80°C   6 months ;  -20°C   1 month

References

[1] Gastonguay A, et al. Cancer Biol Ther. The role of Rac1 in the regulation of NF-κB activity, cell proliferation, and cell migration in non-small cell lung carcinoma.

[2] Goffi F, et al. Neurosci Lett. The inhibitor of I kappa B alpha phosphorylation BAY 11-7082 prevents NMDA neurotoxicity in mouse hippocampal slices.

[3] Mori N, et al. Blood. Bay 11-7082 inhibits transcription factor NF-kappaB and induces apoptosis of HTLV-I-infected T-cell lines and primary adult T-cell leukemia cells.