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Wound healing serves as the primary biological mechanism for restoring homeostasis after an injury. This intricate process follows a structured sequence: hemostasis, inflammatory response, proliferation, and tissue remodeling. Consequently, inflammation in wound healing represents a critical early phase. It effectively clears necrotic debris and neutralizes invading pathogens while simultaneously activating essential reparative pathways. While mild to moderate inflammation stimulates angiogenesis and fibroblast activation, chronic inflammation often leads to severe tissue damage and non-healing wounds.
Steady-state tissue restoration depends heavily on immune homeostasis. This balance involves the precise polarization of immune cells and the tight regulation of various cytokines and chemokines. Moreover, the dynamic cross-talk between growth factors and extracellular matrix (ECM) components dictates the success of different healing phases. When this signaling network functions correctly, the body transitions smoothly from a pro-inflammatory state to a pro-regenerative environment. However, disruptions in these pathways can stall the healing cascade, particularly in patients with systemic metabolic conditions.
Modern clinical practice is shifting toward tailored therapeutic strategies that target specific inflammatory mechanisms. Clinicians now utilize novel interventions such as negative pressure wound therapy (NPWT) and hyperbaric oxygen to enhance local tissue environments. Furthermore, emerging exosome-based approaches and nanohydrogel systems allow for the precise delivery of immunomodulatory agents. These biomaterial-based technologies aim to resolve chronic inflammation and promote faster re-epithelialization. Additionally, multi-omics integration provides a path toward precision wound healing by addressing individual patient heterogeneity.
Despite significant progress, several barriers hinder the widespread adoption of these therapies. Factors such as wound heterogeneity and complex host-microbe interactions complicate treatment outcomes. Therefore, an interdisciplinary approach is necessary to bridge the gap between laboratory research and bedside application. By understanding the foundational role of inflammation, healthcare providers can better manage complex injuries and improve clinical efficacy across various medical specialties.
Chronic or excessive inflammation prevents the wound from transitioning to the proliferative phase. This delay causes tissue destruction and the formation of fibrotic tissue, eventually leading to non-healing chronic ulcers.
Exosomes function by delivering bioactive molecules that reprogram macrophages from a pro-inflammatory state to an anti-inflammatory, reparative state. This transition is vital for inducing angiogenesis and tissue remodeling.
Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or a professional physician-patient relationship. Refer to the latest local and national guidelines for clinical practice.
References
Zhang Y et al. Inflammation and wound healing: a comprehensive overview of mechanisms, therapeutic strategies, and translational perspectives. Biomark Res. 2026 May 16. doi: 10.1186/s40364-026-00935-x. PMID: 42141493.
Riaz M, et al. Immunomodulatory pathways and emerging therapeutic strategies in chronic wound healing: bridging inflammation, regeneration, and clinical translation. EurekAlert!. 2025 Oct 30.
Eming SA, et al. Inflammation in Wound Repair: Molecular and Cellular Mechanisms. J Invest Dermatol. 2007;127(3):514-25.
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An overview of inflammation in wound healing, exploring immune homeostasis, novel interventions like exosomes, and translational challenges for clinicians....
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