Postoperative ileus-Immune mechanisms and potential therapeutic interventions

Area of Science:

• Gastroenterology
• Surgical Pathology
• Immunology

Background:

• Postoperative ileus (POI) is a temporary cessation of gastrointestinal motility after abdominal surgery.
• POI involves an early neurogenic phase and a later immune-mediated phase characterized by sterile inflammation.
• Macrophage activation in the muscularis layer triggers inflammation, impairing the enteric nervous system (ENS) and motility.

Purpose of the Study:

• To review recent findings on the pathophysiological mechanisms of POI.
• To discuss emerging therapeutic strategies for managing POI.

Main Methods:

• Literature review of recent research on POI pathophysiology.
• Analysis of studies investigating neural and immune pathways in POI.
• Evaluation of potential therapeutic targets and strategies.

Main Results:

• Detailed description of the dual-phase mechanism of POI.
• Emphasis on the role of sterile inflammation and macrophage activation.
• Identification of key molecular and cellular players in ENS dysfunction.

Conclusions:

• Understanding the complex pathophysiology of POI is crucial for effective treatment.
• Targeting immune-mediated inflammation and ENS dysfunction offers promising therapeutic avenues.
• Further research into novel therapeutic strategies could alleviate POI burdens.