Cardiac Chagas Disease: MMPs, TIMPs, Galectins, and TGF-β as Tissue Remodelling Players

Area of Science:

• Pathophysiology of infectious diseases
• Molecular mechanisms in cardiovascular disease
• Parasitology and immunology

Background:

• Chagas disease, caused by Trypanosoma cruzi, remains incompletely understood a century after its discovery.
• The heart is a primary target organ, with myocarditis, tissue remodeling, and fibrosis being common complications.
• Specific molecular players, including metalloproteinases, galectins, and TGF-β, are implicated in disease progression.

Purpose of the Study:

• To review and synthesize current knowledge on metalloproteinases, galectins, and TGF-β in Chagas disease.
• To elucidate the interrelationships between these molecules and their contribution to Chagas' heart disease.
• To understand how the inflammatory microenvironment influences host-parasite interactions and cardiac pathology.

Main Methods:

• Literature review synthesizing existing research on Chagas disease pathophysiology.
• Analysis of the roles of metalloproteinases, galectins, and TGF-β in Trypanosoma cruzi infection.
• Discussion of molecular interactions driving cardiac remodeling and fibrosis.

Main Results:

• Metalloproteinases, their inhibitors, galectins, and TGF-β are demonstrably involved in Chagas disease pathogenesis.
• These molecules mediate critical processes including infection establishment, myocarditis, tissue remodeling, and fibrosis.
• The inflammatory milieu induced by infection appears to modulate the expression of these proteins, promoting cardiac damage.

Conclusions:

• Understanding the intricate roles and interactions of metalloproteinases, galectins, and TGF-β is essential for comprehending Chagas' heart disease.
• Targeting these molecular pathways may offer novel therapeutic strategies for mitigating cardiac complications in Chagas disease.
• Further research is warranted to fully elucidate the complex interplay of these factors in the host-parasite dynamic.