Bioengineered chewing gum slashes HPV and cancer-linked bacteria in Penn lab study

[BookerT]

Researchers at the University of Pennsylvania have developed a genuinely promising bioengineered chewing gum that sharply reduced levels of a cancer linked virus and two harmful bacteria in laboratory tests using real oral samples from head and neck cancer patients, potentially opening the door to a new, low cost and accessible therapy for a genuinely difficult disease to treat

The research, led by Henry Daniell at Penns School of Dental Medicine and published in Scientific Reports, builds on earlier work involving a chewing gum made from lablab beans, known as bean gum, which naturally contains an antiviral protein called FRIL, the team examined oral samples from patients with head and neck squamous cell carcinoma, or HNSCC, specifically measuring three microbes known to be associated with worse outcomes, human papillomavirus or HPV, and two bacterial species called Porphyromonas gingivalis and Fusobacterium nucleatum, Daniell explained the stakes plainly, saying the global increase in oropharyngeal cancer is linked to HPV infection, and that the two bacterial species worsen survival rates of untreated recurrent or metastatic oral cancer even after surgery and other supplemental therapies

The results were genuinely striking, bean gum extracts reduced HPV levels by 93 percent in saliva samples and by 80 percent in oral rinse samples, in some cases the gum extract aggregated essentially all detectable HPV present in a given sample, when the researchers additionally bioengineered the gum to contain protegrin, an antimicrobial peptide capable of directly killing harmful bacteria, a single dose brought levels of both Pg and Fn bacteria down to almost zero, genuinely important is that the treatment appeared to preserve the beneficial bacteria normally found in the mouth rather than wiping out the oral microbiome indiscriminately, which stands in real contrast to radiation therapy, the current standard treatment, which reduces beneficial oral bacteria while actually increasing levels of a disease causing yeast called Candida albicans

Its genuinely important to be clear about what this research does and doesnt show though, this was explicitly a preclinical, ex vivo study, meaning no patient actually chewed the gum as treatment, researchers instead took oral samples from patients and treated those samples with gum extracts in a laboratory setting, that experimental design cannot tell anyone whether actually chewing this gum would prevent or treat cancer in a living person, and the researchers themselves make no such claim, reducing detectable virus levels in an isolated sample is meaningfully different from clearing an established infection inside a living mouth, where saliva is continuously produced and swallowed and gum is chewed for minutes rather than sitting in continuous contact with tissue for hours

The team is already moving toward real world validation though, co-investigator and dentist Dr Marc Herschel said Penn will continue studying the gums effectiveness through an actual HPV clinical trial based at Penn Medicine, he specifically noted the trials outcome could help show whether the gum might one day help protect a spouse or intimate partner of someone already diagnosed with an HPV related cancer, given that persistent oral HPV infection currently has no dedicated treatment aimed specifically at clearing an established infection, this approach represents a genuinely novel angle on a problem thats had very few good options up to this point

Cancer-fighting chewing gum cuts HPV levels by up to 93%www.sciencedaily.com

[Sinead77]

The distinction between an ex vivo lab result and something that actually works when you chew it in a real living mouth is the single most important caveat here, promising sample results dont automatically translate to real world efficacy, and its genuinely good that the researchers themselves are upfront about that limitation