RT Journal Article
SR Electronic
T1 Genome wide DNA methylation profiling identifies specific epigenetic features in high-risk cutaneous squamous cell carcinoma
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 777227
DO 10.1101/777227
A1 David Hervás-Marín
A1 Faatiemah Higgins
A1 Onofre Sanmartín
A1 Jose Antonio López-Guerrero
A1 M. Carmen Bañó
A1 J. Carlos Igual
A1 Inma Quilis
A1 Juan Sandoval
YR 2019
UL http://biorxiv.org/content/early/2019/09/20/777227.abstract
AB Cutaneous squamous cell carcinoma (cSCC) is the second most common skin cancer. Although most cSCCs have good prognosis, a subgroup of high-risk cSCC has a higher frequency of recurrence and mortality. Therefore, the identification of molecular risk factors associated with this aggressive subtype is of major interest. In this work we carried out a global-scale approach to investigate the DNA-methylation profile in patients at different stages, from premalignant actinic keratosis to low-risk invasive and high-risk non-metastatic and metastatic cSCC. The results showed massive non-sequential changes in DNA-methylome and identified a minimal methylation signature that discriminates between stages. Importantly, a direct comparison of low-risk and high-risk stages revealed epigenetic traits characteristic of high-risk tumours. Finally, a prognostic prediction model in cSCC patients identified a methylation signature able to predict the overall survival of patients. Thus, the analysis of DNA-methylation in cSCC revealed changes during the evolution of the disease through the different stages that can be of great value not only in the diagnosis but also in the prognosis of the disease.