Screening of North AfricanMedicinal Plant ExtractsforCytotoxicActivityAgainstTumor Cell Lines

Aims: The aim of this study was to evaluate the in vitro cytotoxic activity and cellular effects of organic extracts and fractions of four plants; Inula viscosa, Ormenis eiriolepis (Asteraceae),Retama monosperma (Fabaceae) and Marrubium vulgare(Lamiaceae), all of them used in Moroccan traditional medicine. Methodology: The four plants were extracted using organic solvents and screened on a panel of human cancer cell lines including cell types f rom both solid and haematological cancer origin as well as non -transformed murine fibroblasts. Cell viability assays were