Researchers have identified the presence of a virus that causes one of the most commonly diagnosed cancers in the world, marking a major advance in understanding the factors responsible for the development of this disease.
Tl;dr
Table of Contents
- An HPV virus can cause skin cancer.
- Integration of the virus into tumor DNA discovered.
- Targeted treatments could improve care.
An unexpected discovery on the role of HPV in skin cancers
In terms of skin cancera hitherto little explored avenue is shaking up medical knowledge. Until recently, the human papilloma virus (HPV)particularly its so-called form beta-HPVwas mainly suspected of aggravating damage caused by UV rays. However, a study published in the journal The New England Journal of Medicine reveals that this virus could directly promote the growth of skin tumors, particularly in certain patients with compromised immunity.
A game-changing clinical case
It all started with the medical journey of a 34-year-old patient suffering from cutaneous squamous cell carcinoma (cSCC) located on the forehead. Despite repeated surgeries and immunotherapy, his tumors systematically returned. Even more disturbing: this woman suffered from a hereditary immune deficiency preventing her T cells from fighting HPV. However, his immune system remained capable of repairing the damage caused by UV rays – the usual cause of cSCC.
It was by carrying out an in-depth genetic analysis that the researchers identified a new phenomenon: the beta-HPV had inserted itself into tumor DNA, producing viral proteins that fueled the cancer. “ This finding suggests that there may be more aggressive cases of cSCC linked to underlying immune deficiency », Estimates the immunologist Andrea Liscoof NIAID American.
Targeted treatment and therapeutic prospects
Faced with this situation, the medical team chose an innovative approach: transplanting bone marrow stem cells into the patient in order to restore functional T cells. Result ? Cancer lesions and other conditions caused by HPV disappeared and did not return over three years.
This advance does not call into question the central role of UV rays in the appearance of skin cancers, but highlights the potential danger of HPV for certain vulnerable profiles. A non-exhaustive list of practical implications is as follows:
- Targeted screening in immunocompromised people with atypical lesions;
- New personalized treatmentsmore suitable than standard approaches;
- Multidisciplinary supportmobilizing virologists, immunologists and oncologists.
Hope enabled by vaccination and collaborative research
If no universal remedy against all cancers has yet seen the light of day, this study nourishes hope thanks to the dynamic initiated with thealpha-HPV. Mass vaccination against the latter has led to a drastic drop in deaths linked to cervical or throat cancers. For cSCC, these new findings prompt a rethinking of screening and treatments for those whose immunity remains fragile. Finally, it appears urgent to focus on personalized solutions in order to sustainably increase the chances of survival in the face of aggressive forms of skin cancer.
