The protective effect of curcumin on thrombin-induced hyper-permeability

Area of Science:

• Biochemistry
• Pharmacology
• Immunology

Background:

• Thrombin is a key pro-inflammatory and pro-coagulant agent implicated in various human diseases.
• It plays a critical role in promoting cancer cell proliferation and microvascular leakage, contributing to tumor growth.
• Understanding agents that can modulate thrombin's effects is crucial for therapeutic development.

Purpose of the Study:

• To investigate the therapeutic potential of curcumin in mitigating thrombin-induced vascular permeability.
• To evaluate the effects of curcumin on inflammatory responses and endothelial barrier function in a mouse model.

Main Methods:

• A mouse model was established to induce vascular permeability using thrombin.
• Mice were treated with curcumin or metformin, and vascular permeability was assessed using Evans blue dye.
• Gene expression analysis, including heatmap and protein-protein interaction networks, was performed to identify molecular mechanisms.

Main Results:

• Curcumin treatment led to the overexpression of heat shock protein a1 (Hspa1) family, caspase 3, and minichromosome maintenance complex component 2.
• Curcumin positively associated with apoptosis processes and reduced leukocyte migration.
• Downregulation of pro-inflammatory cytokines (MCP-1, IL-6, CXCL3) and heat shock proteins was observed with curcumin treatment.

Conclusions:

• Curcumin demonstrates efficacy in inhibiting pro-inflammatory cytokines and heat shock proteins in endothelial cells.
• It effectively reduces thrombin-induced destabilization of the vascular barrier in vivo.
• These findings highlight curcumin's potential as a therapeutic agent against thrombin-mediated vascular leakage and inflammation.