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Curcumin nanoparticles in heat stroke management.

Fei Guo¹, Yizhan Wu², Jiangwei Liu³

¹Emergency Trauma Surgery Department of the First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.

Journal of Nanobiotechnology

|September 12, 2024

Summary

Poly(amidoamine) nanoparticles loaded with curcumin (PAMAM@Cur) effectively treat heat stroke-induced brain damage. This nanotechnology approach enhances curcumin delivery, reduces neural inflammation, and protects against cell death for improved neurological outcomes.

Keywords:

Antioxidant Defense Curcumin Heat Stroke Treatment Hypothalamus Nerve Injury PAMAM Nanoparticles

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Area of Science:

Neuroscience
Nanotechnology
Pharmacology

Background:

Global climate change exacerbates extreme heat events, posing public health risks, particularly to the central nervous system via heat stroke.
Heat stroke can cause significant hypothalamic neural damage, necessitating effective therapeutic interventions.

Purpose of the Study:

To develop Poly(amidoamine) (PAMAM) nanoparticles loaded with curcumin (PAMAM@Cur) to improve therapeutic efficacy against heat stroke-induced hypothalamic neural damage.
To investigate the underlying therapeutic mechanisms of PAMAM@Cur in a heat stroke model.

Main Methods:

Curcumin (Cur) was encapsulated into PAMAM nanoparticles (PAMAM@Cur) via hydrophobic interaction.
A heat stroke mouse model was used to assess body temperature, serum biochemistry, behavior, histology, and molecular pathways (transcriptomics, proteomics).
N2a cell models were utilized for validation.

Main Results:

PAMAM@Cur exhibited excellent stability, cell compatibility, and blood-brain barrier penetration, accumulating effectively in the brain.
PAMAM@Cur significantly improved behavioral performance and neural integrity in heat stroke mice, outperforming Cur or PAMAM alone.
Multi-omics analysis revealed PAMAM@Cur modulated antioxidant and iron death pathways, upregulating PCBP2 and stabilizing SLC7A11 and GPX4 mRNA, thereby reducing iron-dependent cell death.

Conclusions:

PAMAM@Cur enhances curcumin's therapeutic effects against heat stroke-induced hypothalamic neural damage by improving drug delivery and modulating key molecular pathways.
This nanotechnology-based approach offers a promising strategy for treating neurological disorders associated with heat stroke, with potential for clinical translation.