Table 2. Fenretinide affects aRMS cell proliferation in the low µM range.

Cell line	Fenretinide IC50a	Type
Rh4	2,27 µM	Alveolar
Rh30	9,42 µM	Alveolar
RMS13	6,43 µM	Alveolar
Rh41	5,48 µM	Alveolar
RD	31,48 µM	Embryonal
Ruch-2	21,21 µM	Embryonal
A673	1,09 µM	Ewing Sarcoma
TC71	2,13 µM	Ewing Sarcoma

^aIC50 values were calculated by nonlinear regression curve fitting using GraphPad Prism software.