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Related Experiment Video

Updated: Jul 18, 2025

In Vitro Model of Human Cutaneous Hypertrophic Scarring using Macromolecular Crowding

In Vitro Model of Human Cutaneous Hypertrophic Scarring using Macromolecular Crowding

Published on: May 1, 2020

Establishment of a Model for Human Hypertrophic Scar Using Tissue Engineering Method.

Yawei Li^1,2, Xiaofeng Shan¹, Jie Liang¹

¹Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing.

The Journal of Craniofacial Surgery

|August 21, 2023

Summary

Researchers developed a tissue-engineered model for human hypertrophic scars (HS). This new model mimics human HS tissue, offering a valuable tool for future clinical and laboratory research into scar prevention and treatment.

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Last Updated: Jul 18, 2025

In Vitro Model of Human Cutaneous Hypertrophic Scarring using Macromolecular Crowding

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Published on: May 1, 2020

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Area of Science:

Biomedical Engineering
Tissue Engineering
Dermatology

Background:

Human hypertrophic scar (HS) treatment presents challenges for plastic surgeons.
Limited research exists due to the lack of ideal human HS tissue models.

Purpose of the Study:

To establish a human HS model using tissue engineering.
To enhance HS research in clinical and laboratory settings.

Main Methods:

Hypertrophic scar fibroblasts (HSFBs) were cultured on polylactic acid (PLA)/polyglycolic acid (PGA) scaffolds.
Biocompatibility was assessed via scanning electron microscopy.
Composites were cultured in vitro for 4 weeks, then in vivo in athymic mice for 12 weeks to generate HS-like tissue.

Main Results:

PLA/PGA scaffold structure supported HSFB adhesion and proliferation.
HS-like tissues were successfully generated in vivo.
No significant differences were observed in type I collagen expression, cell cycle, or proliferation between human HS and engineered HS-like tissues.

Conclusions:

A human hypertrophic scar model was successfully established via tissue engineering.
This model provides HS-like tissue for research, potentially reducing experimental variability.
The model can aid in investigating HS prevention, treatment, and underlying mechanisms.