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HPV involvement in the tumor microenvironment and immune treatment in head and neck squamous cell carcinomas

par Lechien, Jérôme;Descamps, Géraldine;Seminerio, Imelda;Furgiuele, Sonia;Dequanter, Didier ;Mouawad, Francois;Badoual, Cécile;Journé, Fabrice ;Saussez, Sven
Référence Cancers (Basel), 12, 5, 1060
Publication Publié, 2020-05

Article révisé par les pairs

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Résumé :

Head and neck squamous cell carcinomas (HNSCC) are one of the most prevalent cancers worldwide. Active human papillomavirus (HPV) infection has been identified as an important additional risk factor and seems to be associated with a better prognosis in non-drinker and non-smoker young patients with oropharyngeal SCC. The better response of the immune system against the HPV-induced HNSCC is suspected as a potential explanation for the better prognosis of young patients. To further assess this hypothesis, our review aims to shed light the current knowledge about the impact of HPV infection on the immune response in the context of HNSCC, focusing on the innate immune system, particularly highlighting the role of macrophages, Langerhans and myeloid cells, and on the adaptative immune system, pointing out the involvement of T regulatory, T CD8 and T CD4 lymphocytes. In addition, we also review the preventive (HPV vaccines) and therapeutic (checkpoint inhibitors) strategies against HPV-related HNSCC, stressing the use of anti- CTLA4, PD-L1, PD-L2 antibodies alone and in combination with other agents able to modulate immune responses.