sentence: The expression levels of Caveolin family members were analysed by western blot using four human RMS cell lines ( embryonal RD , RD12 , RD18 and alveolar RH30 ) and two mouse primary tumor cultures established from transgenic Myf6Cre / p53 and Myf6Cre / Pax3-Foxo1 / p53 mice ( embryonal U57810 and alveolar U23674 , respectively ) [ 21 ] , [ 24 ] .