Related Experiment Video
Updated: Mar 16, 2026
Generation of Self-assembled Vascularized Human Skin Equivalents
Published on: February 12, 2021
Bioengineered Self-assembled Skin as an Alternative to Skin Grafts.
Mihail Climov1, Erika Medeiros1, Evan A Farkash1
1Transplantation Biology Research Center, Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Mass.; Organogenesis Inc., Canton, Mass.; Department of Pathology, Massachusetts General Hospital, Boston, Mass.; and Plastic Surgery Research Laboratory, Massachusetts General Hospital, Boston, Mass.
Researchers developed a novel self-assembled bilayered skin construct using autologous skin cells. This bioengineered skin showed successful engraftment and vascularization in a porcine model, offering a promising alternative for burn and scar reconstruction.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Wound Healing
Background:
- Limited autologous skin and allogeneic rejection necessitate advanced skin regeneration alternatives.
- Current engineered skin analogs provide temporary coverage, not permanent solutions.
- Autologous skin grafts remain the gold standard but are limited by donor site availability.
Purpose of the Study:
- To evaluate the efficacy of a self-assembled bilayered skin construct derived from autologous skin punch biopsies.
- To assess the vascularization, healing, and engraftment potential of the bioengineered skin in a preclinical model.
- To compare the construct's performance against existing regenerative approaches.
Main Methods:
- Dermal fibroblasts were stimulated to create an extracellular matrix.
- Epidermal progenitor cells were seeded onto the matrix to form a bilayered construct.
- Autologous constructs were grafted onto partial- and full-thickness wounds in a porcine model.
Main Results:
- Successful permanent engraftment of the self-assembled bilayered skin construct was achieved.
- The construct demonstrated spontaneous vascularization comparable to autologous skin grafts.
- Healing outcomes were superior to a control construct using bovine collagen.
Conclusions:
- This study presents the first successful engraftment of a self-assembled bilayered bioengineered skin.
- The construct shows potential for spontaneous vascularization and permanent integration, supplementing current reconstructive methods.
- This innovation offers a promising new avenue for treating extensive skin defects.
