Marks and scars are part of the human body; sometimes they go beyond aesthetic issues and become obstacles in daily life, which often moves away from aesthetics. With this in mind, the Center for Regenerative Medicine of the Venezuelan Institute for Scientific Research (IVIC) is experimentally evaluating an innovative therapeutic model: the use of mesenchymal stromal cells (MSCs) derived from hair follicles to accelerate skin healing and regeneration.
The research, led by specialist Bélgica Molina, has been exploring for two years a method that combines anatomical simplicity with cutting-edge biotechnology. The premise is to extract these cells directly from the hair root to regenerate skin devastated by burns or severe wounds.
And how is this achieved? The procedure begins with a pair of tweezers and a subtle pull: an outpatient and painless hair removal that allows the follicle to be extracted intact.
Upon entering the laboratory, the scene reveals a fascinating biological metamorphosis: carefully placed in culture dishes with specialized nutrient media using the explant technique, the follicle demonstrates why it is considered the only human mini-organ capable of cyclical regeneration throughout life. It is there, from the niche of the hair follicle's bulge, that stromal cells awaken, migrate, and multiply in vitro; a process in which they not only grow but also release a potent "secretome" laden with vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF), highly precise chemical signals that instruct the body to accelerate the formation of new blood vessels and steadily weave a new layer of epidermis over the wound.
From follicular niche to tissue repair
To understand the beauty of this essay, one must examine the human body under a microscope. As Dr. George Cotsarelis's team aptly defined in a landmark study published in the journal Cell, the hair follicle is not merely an inert filament; it is the most complex mini-organ in our anatomy and the only one capable of cyclical regeneration throughout life, and our researchers, based on this, are working to ensure that they are born healthy and strong.
The paradigm shift being driven by the IVIC's Center for Regenerative Medicine lies in attempting to obtain mesenchymal stromal cells (MSCs) from a more accessible source, namely the skin, thus altering the logistics of pain. Until now, regenerative medicine has relied on invasive and quite painful procedures to obtain essential mesenchymal stromal cells for suppressing inflammation and preventing immune rejection. These procedures have included bone marrow aspirations under anesthesia, liposuction of adipose tissue, or collection from the umbilical cord during birth, as documented by the International Society for Cell & Gene Therapy and the journal Nature Cell Biology.
Faced with these clinical conditions, the Venezuelan approach turns to the hair follicle as a biologically exceptional and easily accessible source for its possible use in the treatment of burns and wounds.
What phase are we in?
After two years, the project is in a crucial preclinical stage focused on standardizing the methodology in laboratory animals. This rigor adheres to the standards of international regulatory agencies, which stipulate that, before authorizing clinical trials in humans (phases I and II), the reproducibility of cell culture, biosafety, and absence of tumorigenicity in preclinical models must be quantitatively demonstrated.
Far from being a bureaucratic whim, the project is in a crucial preclinical stage focused on methodological standardization in laboratory animals. If these trials confirm the reproducibility and safety of the protocol, translational medicine in Venezuela will be on the verge of offering autologous therapy—where the patient is their own donor—that is affordable, free from ethical dilemmas, and free from the surgical traumas that have historically kept the vast majority away from advanced healthcare. Ultimately, the promise of restoring integrity to skin devastated by severe burns demonstrates that the greatest scientific revolutions do not always require colossal infrastructure; sometimes, it is enough to know where to look. Even there, in the tiny, imperceptible root of a strand of hair, we find great scientific advances bearing the Venezuelan stamp.
Congratulations on the extraordinary research, Belgium! What a great contribution you are making to scientific knowledge and the cure for these skin-related ailments.
How pleasant it is to read about this subject and the scientific contributions or advances carried out here at IVIC by a professional team of Venezuelans.