Introduction:
There has been much interest in the emerging field of polynucleotides in the aesthetic media of late but what actually are they? Where have they come from and what do they do? Are they safe? In this post, I hope to shed some light on these new wonder-treatments and dispel any untruths. So let’s get started.
Polynucleotides, the macromolecules made up of nucleotide monomers, are the building blocks of life as we know it. These complex molecules carry genetic information in the form of DNA and RNA and are vital for the proper functioning of living organisms. However, their role extends well beyond their biological functions. Their application in the aesthetics industry and now emerging in medicine is revolutionising both fields, providing innovative solutions to age-old problems.
Polynucleotides: The Basics – bear with me, this gets a bit sciency!
At their core, polynucleotides are long chains composed of units called nucleotides. Each nucleotide consists of a five-carbon sugar (deoxyribose in DNA, ribose in RNA), a phosphate group, and a nitrogenous base. These nitrogenous bases are adenine, guanine, cytosine, and thymine in DNA, with uracil replacing thymine in RNA. The sequence of these bases encodes the genetic instructions for the development, functioning, and reproduction of all known organisms.
Polynucleotides in the Aesthetics Industry
The aesthetic industry has embraced polynucleotides with open arms, capitalising on their regenerative and hydrating properties. Polynucleotide gels, products rich in DNA fragments from natural sources like salmon milt, are known for promoting skin elasticity, hydration, and overall skin health (1). When used in cosmetic treatments, these gels have been shown to stimulate collagen production and facilitate tissue repair, contributing to a more youthful and vibrant appearance. Your skin literally begins replicating as it would have 10 years ago thanks to the repair of its DNA from the addition of polynucleotides. Hear that? It’s the sounds of the floodgates for regenerative medicine opening!
One of the pioneering studies exploring the aesthetic applications of polynucleotides was published by S. Cho et al. in 2011, where they demonstrated the ability of these molecules to improve skin elasticity and texture (2). The study set the stage for further advancements and integration of polynucleotide-based products in dermatology and aesthetic medicine.
This photograph is the property of Dermis Skin Aesthetics showing the results after 3 sessions of polynucleotide mesotherapy injections.
Polynucleotides in Medical Field
In the realm of medicine, polynucleotides serve as diagnostic tools, therapeutic agents, and pivotal components in medical research. One exciting area is gene therapy, where DNA and RNA polynucleotides are used to correct genetic disorders. By introducing or modifying genetic material within a patient’s cells, physicians can tackle the root cause of a disease rather than merely treating its symptoms.
mRNA vaccines, such as those developed for COVID-19, highlight the therapeutic potential of RNA polynucleotides (3). Researchers N. Pardi et al. (2018) have shown the effectiveness of mRNA as a platform for vaccines, paving the way for rapid vaccine development in response to emerging infectious diseases (4).
Another innovative application of polynucleotides is in the field of regenerative medicine. Leveraging the ability of polynucleotides to support cell proliferation and tissue regeneration, medical researchers have developed treatments that could mend tissues, from skin to cartilage and beyond. A study conducted by E. S. Lee and colleagues (2012) revealed the potential of polynucleotides in the healing of osteoarthritic cartilage (5), offering new avenues for managing this chronic condition. A lot of research is being carried out to look into the uses of Polynucleotides in menopausal women; specifically its role in improving vaginal symptoms associated with reducing oestrogen levels such as dryness, soreness and recurrent infection. The results presented at the recent Menopause in Aesthetics 2024 conference are very exciting.
Additionally, polynucleotides play a central role in the diagnosis of diseases. Polymerase chain reaction (PCR), a technique that utilises DNA polynucleotides, enables rapid and precise detection of pathogens and genetic mutations. Revolutionising the way we diagnose infections and hereditary diseases, PCR has become an indispensable tool in modern medicine.
Aesthetic Applications in Depth
The rising popularity of non-invasive procedures has put the spotlight on polynucleotide-based treatments in aesthetic medicine. Harnessing the natural capacity of polynucleotides to assist in cellular communication and healing processes, these treatments offer a host of benefits. They hydrate the skin, boost tissue repair, and reduce the effects of photoaging, giving practitioners a powerful tool in their quest to rejuvenate and revitalise skin.
Polynucleotide skin treatments often involve microinjections or topical applications of polynucleotide-rich gels on the affected areas. Research supports that the value of these treatments goes beyond the superficial. A case study by B. R. Lee et al. (2015) reported significant skin improvements following polynucleotide treatment, including enhanced skin density and reduced wrinkle depth (6).
Medical Advancements in Detail
In the medical field, the advent of CRISPR-Cas9 genome-editing technology showcases the power of DNA polynucleotides. By leveraging a bacterial defence system that uses RNA-guided DNA cleavage, scientists can now edit genes with unprecedented precision. This tool has massive implications for treating genetic disorders, as documented by J. S. Doudna and E. Charpentier, who were pivotal in developing this technology (7). The CRISPR-Cas9 system has made strides in various areas of medicine, offering hope for the cure of diseases that were previously deemed intractable.
Moreover, advancements in the understanding of RNA interference (RNAi) have opened new doors for therapeutic applications. RNAi is a natural cellular process that uses small RNA molecules to silence specific genes, effectively turning off their expression. This mechanism can be harnessed to downregulate malfunctioning genes associated with diseases. A landmark paper by A. Fire et al. (1998) demonstrated the potential of RNAi for gene silencing (8), which has since led to the development of new drugs for conditions like amyloidosis.
The Potential of Polynucleotides in Regenerative Medicine
In regenerative medicine, polynucleotides’ capacity to stimulate cell growth and repair damaged tissue is invaluable. Treatments derived from polynucleotide technology are being investigated for their efficacy in wound healing, tissue engineering, and even in the stimulation of hair growth for conditions like alopecia. Polynucleotide therapy has also shown promise in enhancing the regrowth of periodontal tissues, as shown in a study by M. P. Ruffini et al. (2017), pointing to potential treatments for periodontitis (9). The ongoing research in this field is rapidly translating into clinical applications that could revolutionise how we handle injuries and tissue degeneration.
Ethical Considerations and Future Directions
As polynucleotide therapies continue to evolve, they introduce a host of ethical questions, particularly revolving around genetic modification and the potential for permanent changes to the human genome. The medical community, along with regulatory bodies, is grappling with these issues, striving to establish guidelines that balance innovation with ethical responsibility. With regards to aesthetics, there is little concern as the injectable treatments work locally to improve performance of skin turnover, however in some of its medical uses, such as altering DNA to improve syndromic conditions the question is how far is too far.
The future of polynucleotides in both aesthetics and medicine is undoubtedly bright. Research is ongoing to develop more refined, targeted therapies, and to optimise delivery systems for polynucleotide-based treatments. The potential for personalised medicine, tailored to an individual’s genetic makeup, is on the horizon, promising treatments that are more effective and with fewer side effects.
Conclusion:
Polynucleotides are not just the thread from which the tapestry of life is woven – they are also the tools with which we are reshaping our understanding and treatment of aesthetic concerns and medical conditions. In the aesthetics industry, they offer a natural, non-invasive means to rejuvenate and heal the skin. In medicine, their prospects range from correcting genetic disorders to sprouting new tissues where needed. The convergence of these molecules’ roles in both fields is a testament to their versatility and the tireless human pursuit to harness nature’s most intricate designs for the betterment of our health and wellbeing. As research continues and technologies advance, the full potential of polynucleotides will unfurl, ensuring their place at the forefront of scientific breakthroughs in aesthetics and medicine
Author: Dr. Hannah Murphy
Note: The author is a healthcare provider with a special interest in women’s health, offering insights into the complexities of menopause testing and diagnosis.
