Could a Chewing Gum Slash Your HPV by 93% and Clear Cancer-Linked Oral Bacteria?

Philadelphia, Pennsylvania, MMN Correspondent: A chewing gum might not be the first thing that comes to mind when you think about cancer research. But a team at the University of Pennsylvania is asking you to reconsider. Their new study, published in Scientific Reports, shows that a specially engineered gum made from lablab beans can cut HPV levels in saliva by up to 93% and bring two harmful oral bacteria down to almost zero.

So how does a simple gum do something that sounds like science fiction? The answer lies in a natural protein called FRIL. Found in lablab beans, FRIL can bind to viruses and stop them from entering cells. Earlier work by the same research team had already shown this bean gum could reduce viral loads in the lab. This time, they went further by testing it on oral samples collected from actual patients with head and neck squamous cell carcinoma, also known as HNSCC.

The idea came from Dr. Henry Daniell, a professor in the Department of Basic & Translational Sciences at Penn Dental Medicine. He and his colleagues have spent years exploring how plant-based proteins can be used for medical purposes. For this study, they combined FRIL with protegrin, an antimicrobial peptide that occurs naturally in the body's immune system. Protegrin works by breaking down bacterial membranes, making it a powerful weapon against a range of pathogens.

When the engineered gum extract was added to patient saliva and oral rinse samples, the effect was dramatic. HPV levels fell by 93% in saliva and by 80% in oral rinses. High-risk strains of HPV, particularly HPV-16 and HPV-18, are strongly linked to cancers of the oropharynx, so a reduction of this size could make a real difference. In the same experiments, a single dose brought Porphyromonas gingivalis and Fusobacterium nucleatum down to nearly undetectable levels. Both of these bacteria have been connected to periodontitis and poorer outcomes in oral cancer patients.

One of the most striking findings was that the gum did not wipe out the mouth's beneficial bacteria. It went after the troublesome microbes with precision, leaving the helpful community of organisms that make up a healthy oral microbiome intact. That matters because this community supports digestion, immune function, and protection against opportunistic infections. Maintaining this balance can be especially valuable for cancer patients.

The potential uses go beyond treatment. Since the gum is inexpensive and easy to make, it could serve as a preventive tool in communities where HPV vaccination rates are low or where access to advanced cancer care is limited. For low and middle income countries, a low cost chewing gum that reduces viral and bacterial load could be a practical way to address a serious health issue.

Dr. Daniell and his team are quick to note that these results come from ex vivo experiments. That means the gum extracts were tested on patient samples in a laboratory, not in people chewing the gum yet. Clinical trials are the next step, and they will determine whether these promising effects hold up in real world use. If they do, the gum could be used alongside standard treatments or as a preventive option for people at high risk.

The study involved researchers from several institutions, including Penn Dental Medicine, the University of Kansas Medical Center, UCLA, and the Veterans Administration Greater Los Angeles Healthcare System. It was supported by the National Institutes of Health, an Academic Senate Grant from the David Geffen School of Medicine at UCLA, and the National Cancer Institute Cancer Center.

There's something elegant about this approach. It uses proteins and peptides that nature has already shaped to fight infection, and it packages them into something as familiar as gum. As head and neck cancers continue to rise, especially those linked to HPV, innovations like this point to a future where prevention might be as simple as chewing a piece of gum. The team is now refining the formulation and exploring whether the gum could work against other viruses and bacteria. A small piece of gum, once taken for granted, might someday become an everyday part of cancer care.