Research Advances in Therapeutic Strategies and Drug Delivery Systems for Pathological Scars

Yuxin Shi1, Ling Li2

  • 1School of Medicine, Chongqing University, Chongqing 400030, China.

Pharmaceutics
|February 27, 2026
PubMed

Insights

Pathological scars hinder quality of life due to poor healing. Novel biomaterial drug delivery systems offer a promising, minimally invasive approach to improve scar treatment efficacy and overcome limitations of current therapies.

Area of Science:

  • Biomaterials Science
  • Dermatology
  • Regenerative Medicine

Background:

  • Pathological scars result from abnormal wound healing, causing disfigurement and dysfunction.
  • Current treatments like surgery and corticosteroids have limited efficacy, high recurrence, and side effects.
  • Scar tissue's dense extracellular matrix impedes drug penetration, reducing therapeutic effectiveness.

Purpose of the Study:

  • To systematically review the pathogenesis and molecular mechanisms of pathological scars.
  • To summarize current and emerging treatments for pathological scars.
  • To highlight novel biomaterial-based drug delivery systems for scar management.

Main Methods:

  • Literature review of pathological scar pathogenesis and treatments.
  • Analysis of molecular mechanisms underlying scar formation.
  • Evaluation of biomaterial-based drug delivery systems and transdermal technologies.

Main Results:

  • Pathological scars involve aberrant extracellular matrix deposition and fibrotic processes.
  • Existing treatments show significant limitations in efficacy and tolerability.
  • Biomaterial-based systems offer sustained drug release and improved penetration for scar treatment.

Conclusions:

  • Biomaterial-based drug delivery systems represent a promising strategy for overcoming limitations in pathological scar treatment.
  • Further research into novel biomaterials and transdermal technologies is crucial for advancing scar management.
  • These innovative approaches hold potential for improving patient quality of life by addressing disfigurement and dysfunction.

Related Concept Videos

Clinical Applications of Epidermal Stem Cells01:19

Clinical Applications of Epidermal Stem Cells

Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
3.4K
Site-Targeted Drug Delivery Systems: Polymeric Carriers01:24

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...
59
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.8K
Modified-Release Drug Delivery Systems: Site-Targeted01:24

Modified-Release Drug Delivery Systems: Site-Targeted

Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
51