| First Author | Van Hede D | Year | 2017 |
| Journal | Proc Natl Acad Sci U S A | Volume | 114 |
| Issue | 43 | Pages | E9056-E9065 |
| PubMed ID | 29073102 | Mgi Jnum | J:252911 |
| Mgi Id | MGI:6095272 | Doi | 10.1073/pnas.1712883114 |
| Citation | Van Hede D, et al. (2017) Human papillomavirus oncoproteins induce a reorganization of epithelial-associated gammadelta T cells promoting tumor formation. Proc Natl Acad Sci U S A 114(43):E9056-E9065 |
| abstractText | It has been shown that gammadelta T cells protect against the formation of squamous cell carcinoma (SCC) in several models. However, the role of gammadelta T cells in human papillomavirus (HPV)-associated uterine cervical SCC, the third-leading cause of death by cancer in women, is unknown. Here, we investigated the impact of gammadelta T cells in a transgenic mouse model of carcinogenesis induced by HPV16 oncoproteins. Surprisingly, gammadelta T cells promoted the development of HPV16 oncoprotein-induced lesions. HPV16 oncoproteins induced a decrease in epidermal Skint1 expression and the associated antitumor Vgamma5(+) gammadelta T cells, which were replaced by gammadelta T-cell subsets (mainly Vgamma6(+) gammadelta(low)CCR2(+)CCR6(-)) actively producing IL-17A. Consistent with a proangiogenic role, gammadelta T cells promoted the formation of blood vessels in the dermis underlying the HPV-induced lesions. In human cervical biopsies, IL-17A(+) gammadelta T cells could only be observed at the cancer stage (SCC), where HPV oncoproteins are highly expressed, supporting the clinical relevance of our observations in mice. Overall, our results suggest that HPV16 oncoproteins induce a reorganization of the local epithelial-associated gammadelta T-cell subpopulations, thereby promoting angiogenesis and cancer development. |
