Robust and Multifunctional Therapeutic Nanoparticles against Peritonitis-Induced Sepsis

Apart from bacterial growth and endotoxin generation, the excessive production of reactive radicals linked with sepsis also has a substantial impact on triggering an inflammatory response and further treatment failure. Hence, the rational design and fabrication of robust and multifunctional nanoparticles (NPs) present a viable means of overcoming this dilemma. In this study, we used antibiotic polymyxin B (PMB) and antioxidant natural polyphenolic protocatechualdehyde (PCA) to construct robust and multifunctional NPs for sepsis treatment, leveraging the rich chemistries of PCA. The PMB release profile from the NPs demonstrated pH-responsive behavior, which allowed the NPs to exhibit effective bacterial killing and radical scavenging properties. Data from in vitro cells stimulated with H2O2 and lipopolysaccharide (LPS) showed the multifunctionalities of NPs, including intracellular reactive oxygen species (ROS) scavenging, elimination of the bacterial toxin LPS, inhibiting macrophage M1 polarization, and anti-inflammation capabilities. Additionally, in vivo studies further demonstrated that NPs could increase the effectiveness of sepsis treatment by lowering the bacterial survival ratio, the expression of the oxidative marker malondialdehyde (MDA), and the expression of inflammatory cytokine TNF-α. Overall, this work provides ideas of using those robust and multifunctional therapeutic NPs toward enhanced sepsis therapy efficiency.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:25

Enthalten in:

Biomacromolecules - 25(2024), 2 vom: 12. Feb., Seite 1133-1143

Sprache:

Englisch

Beteiligte Personen:

Cao, Huan [VerfasserIn]
Zhang, Jianhua [VerfasserIn]
Yang, Lei [VerfasserIn]
Li, Haotian [VerfasserIn]
Tian, Rong [VerfasserIn]
Wu, Haoxing [VerfasserIn]
Li, Yiwen [VerfasserIn]
Gu, Zhipeng [VerfasserIn]

Links:

Volltext

Themen:

BBX060AN9V
Hydrogen Peroxide
J2VZ07J96K
Journal Article
Lipopolysaccharides
Polymyxin B
Reactive Oxygen Species

Anmerkungen:

Date Completed 14.02.2024

Date Revised 14.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1021/acs.biomac.3c01133

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367171082