Macrophage fate: to kill or not to kill?

Area of Science:

• Immunology
• Cell Biology
• Pathology

Background:

• Macrophages are innate immune cells residing in tissues or recruited from monocytes.
• They polarize into M1 (pro-inflammatory) and M2 (anti-inflammatory) phenotypes based on tissue microenvironment (TME) cues.
• Dysregulated macrophage polarization contributes to disease progression and unfavorable clinical outcomes.

Purpose of the Study:

• To review mechanisms of macrophage polarization in TME during infection and inflammation.
• To highlight the role of coagulation in modulating macrophage responses.
• To emphasize the therapeutic potential of targeting macrophage polarization.

Main Methods:

• Literature review of basic science studies on macrophage polarization.
• Analysis of macrophage plasticity and heterogeneity in disease contexts.
• Focus on TME cues, including coagulation, influencing polarization.

Main Results:

• Macrophage polarization is critical for resolving infections and regulating wound healing.
• Disrupted coordination of polarization leads to disease development.
• Macrophage plasticity offers therapeutic opportunities for reprogramming.

Conclusions:

• Understanding macrophage polarization dynamics in disease is vital for targeted therapy development.
• Reprogramming macrophages holds promise for improving clinical prognosis.
• Further research into TME-macrophage interactions can guide therapeutic strategies.