Related Experiment Video

Updated: Jul 6, 2025

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α
11:27

A Guide to Production, Crystallization, and Structure Determination of Human IKK1/α

Published on: November 2, 2018

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Brazilin-Ce nanoparticles attenuate inflammation by de/anti-phosphorylation of IKKβ

Shengxuan Li1, Kun Wang2, Kai Jiang1

  • 1State Key Laboratory of Cardiology, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China.

Biomaterials
|January 7, 2024
PubMed

Insights

Novel Brazilin-Cerium nanoparticles (BX-Ce NPs) effectively reduce inflammation by inhibiting IKKβ phosphorylation. These nanoparticles show promise for treating inflammatory diseases like cardiovascular conditions and sepsis.

Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Inflammation Research

Background:

  • Protein phosphorylation/dephosphorylation is crucial in regulating inflammation.
  • Brazilin offers anti-inflammatory benefits but has a narrow therapeutic window.
  • Cerium (IV) nanoparticles can catalyze phosphoester bond hydrolysis.

Purpose of the Study:

  • To design and synthesize novel Brazilin-Cerium nanoparticles (BX-Ce NPs).
  • To investigate the anti-inflammatory effects of BX-Ce NPs by targeting IKKβ phosphorylation.
  • To evaluate the therapeutic potential of BX-Ce NPs in vivo models.

Main Methods:

  • Synthesis of Brazilin-Cerium nanoparticles (BX-Ce NPs).
  • In vitro assays to determine binding sites and inhibition of IKKβ phosphorylation.
  • In vivo studies using mouse models of myocardial infarction and sepsis.

Main Results:

  • BX-Ce NPs specifically bind to Asn225 and Lys428 of IKKβ, inhibiting its phosphorylation at Ser181 (IC50 = 2.5 μM).
  • BX-Ce NPs demonstrated significant anti-inflammatory effects in vitro.
  • In vivo studies showed amelioration of myocardial injury and improved survival in sepsis models.

Conclusions:

  • BX-Ce NPs exhibit potent anti-inflammatory activity by downregulating IKKβ phosphorylation.
  • These nanoparticles offer a promising therapeutic strategy for inflammation-related diseases.
  • BX-Ce NPs represent a novel approach for guided ion interference therapy targeting de/anti-phosphorylation.
Keywords:
Anti-inflammationBrazilin-Cerium nanoparticlesDe/anti-phosphorylationGuided ion interference therapyMyocardial infarction

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