Mutations in XLF/NHEJ1/Cernunnos gene results in downregulation of telomerase genes expression and telomere shortening

R.P. laboratory is partially funded by grant P14-01495 (Fondo de Investigaciones Sanitarias, Instituto de Salud Carlos III, Spain supported by FEDER funds) and ER15PR07ACC114/757 from CIBERER. J.B. laboratory is funded by PI12/00070 and PI16/00440 (FIS) supported by FEDER funds and ER14PROACC13G706. C.M-G granted by the CIBERER. P.R is a scientist from Centre National de la Recherche Scientifique (CNRS). P.R and J-P.V are from a laboratory “Labellise´ La Ligue”.