Molecular Pathophysiology of Chronic Wounds: Current State and Future Directions

Area of Science:

• Wound healing research
• Molecular biology of chronic wounds
• Cellular mechanisms in ulceration

Background:

• Venous leg ulcers, diabetic foot ulcers, and pressure ulcers are complex chronic wounds.
• These wounds have multifactorial causes and are linked to high patient morbidity and mortality.
• Current therapies for chronic wounds are often not effective, despite advances in understanding their pathology.

Purpose of the Study:

• To provide a comprehensive overview of the molecular mechanisms impairing chronic wound healing.
• To summarize current knowledge on cell-specific dysregulation in chronic wounds.
• To identify potential therapeutic targets for shifting nonhealing wounds to healing.

Main Methods:

• Review of "omics" approaches in chronic wound research.
• Analysis of molecular mechanisms underlying impaired healing.
• Examination of cell-specific dysregulation (keratinocytes, fibroblasts, immune cells, endothelial cells).

Main Results:

• Detailed overview of molecular mechanisms that impede wound healing.
• Understanding of cell-specific contributions to impaired reepithelialization, inflammation, angiogenesis, and remodeling.
• Identification of knowledge gaps in ulcer-specific pathologic processes.

Conclusions:

• Further research into ulcer-specific pathologies is needed.
• Targeting these specific molecular and cellular processes may lead to more efficacious therapies.
• The goal is to transition chronic nonhealing wounds to acute healing states.