Revolutionary regenerative technology enables ultra-fast wound healing.

Revolutionary regenerative technology enables ultra-fast wound healing. 

A South Korean research team has confirmed that this groundbreaking finding has recently been published in the top international academic journal Nature Communications.

From passive repair to active planning: A revolutionary approach to regenerative medicine

In traditional wound care, cells typically initiate repair processes only after damage occurs, a delay that often leads to slow healing. This is especially true in the elderly or patients with chronic diseases such as diabetes, where wounds may take months to heal or even develop into serious complications. 

To overcome this challenge, the research team did not choose complete reprogramming. While complete reprogramming has great potential, it carries a significant risk of uncontrolled proliferation and dedifferentiation, easily inducing tumors, thus limiting its clinical application.

Gentle Reversal: Manipulating Only a Small Number of Cells to Initiate Changes in the Entire Tissu 

A team led by Professor Choi Se-kyu and Professor Kim Jong-kyung from Pohang University of Science and Technology, along with researchers Guo Minjun, Choi Eun-jun, and Zhao Yimin, in collaboration with the Korea Institute for Basic Science, the Catholic University of Korea, and the University of Washington, has proposed a novel strategy called embedded partial reprogramming.

The core of this method lies in restraint and precision. First, it limits the number of cells, manipulating only a limited number of epidermal cells in the skin. Second, it controls the degree of reprogramming, not resetting the cells to a pluripotent state, but rather bringing them into a slightly rejuvenating intermediate state, the so-called gentle reversal.

Surprisingly, even without any actual damage, the treated skin enters an unprecedented state of regenerative pre-activation. Not only the manipulated reprogrammed cells, but also the surrounding normal cells, immune cells, and even the entire tissue microenvironment begin to respond in a coordinated manner. The research team found that this process is driven by key signaling pathways such as PI3K-AKT, EGFR, and HIF-1α, which are closely related to cell survival, growth, and adaptation to hypoxia.

The research team vividly explained that the cells seem to be sending each other a signal: damage may be imminent, so let's prepare in advance.

Animal experiments have verified that it accelerates healing and reduces scarring; it is also effective in diabetes models.

In subsequent wound injury models, this pre-activated skin demonstrated significant advantages. Specifically, epithelial regeneration was faster, angiogenesis and immune responses were more precisely regulated, overall healing speed was significantly improved, and scar formation was significantly reduced.

Crucially, these improvements remained consistently observed even in diabetic animal models where wound healing ability is generally impaired. This provides a novel approach for clinically addressing intractable healing disorders such as diabetic foot ulcers and chronic wounds in the elderly.

Significance of the study: From chronic wounds to anti-aging and regenerative drugs 

Professor Cui Shikui pointed out that this study is the first to prove that it is possible to reshape the state of the entire skin tissue by manipulating only a small number of cells and utilizing natural intercellular communication.

First author Guo Minjun further added that the team's discovery not only lays the foundation for treating chronic wounds in diabetic or elderly patients, but also opens up new pathways for the development of anti-aging technologies, regenerative drugs, and biomaterials.

The research team stated that their next step will be to improve the safety of the technology, standardize the preparation process, and promote its translation into clinical applications. If successful, this regenerative strategy that allows the skin to learn in advance could become a cornerstone technology in the future of wound treatment and tissue engineering.

About this study

This work was supported by multiple funding sources, including the Ministry of Science and ICT of South Korea, the Ministry of Health and Welfare's Artificial Embryo Cell Regeneration Biotherapy Program, the Outstanding Young Researcher Program, the Basic Research Program, the Immune Mechanism Control Technology Development Program, and the ATLAS-based Stem Cell Therapy Development Project for Intractable Diseases.

Original source: Pohang University of Science and Technology

Published in: Nature Communications