Wound healing - A literature review

Area of Science:

• Regenerative Medicine
• Dermatology
• Molecular Biology

Background:

• Tissue repair is a complex sequence of molecular and cellular events following injury.
• Key phases include exudative, proliferative, and extracellular matrix remodeling.
• These processes involve soluble mediators, blood cells, and parenchymal cells.

Purpose of the Study:

• To review the cellular and molecular mechanisms of skin wound healing.
• To describe the sequential phases of tissue repair.
• To highlight the role of signaling pathways, such as Hedgehog, in skin regeneration.

Main Methods:

• Literature review of scientific articles on tissue repair and skin healing.
• Analysis of molecular and cellular events in different healing phases.
• Focus on signaling pathways orchestrating cell differentiation and tissue restoration.

Main Results:

• Exudative phase contributes to edema post-injury.
• Proliferative phase involves myofibroblast contraction, fibroplasia, angiogenesis, and reepithelialization.
• Endothelial cell differentiation into mesenchymal components is regulated by signaling proteins, notably the Hedgehog pathway.

Conclusions:

• Skin healing is a dynamic, multi-stage process.
• The Hedgehog pathway plays a crucial role in orchestrating cellular differentiation during repair.
• Understanding these mechanisms is vital for advancing regenerative medicine and therapeutic strategies.