Doğan et al. [30] also focused on investigating the action of extracts on P-gp activity using aqueous, methanol, and ethanol extracts from Fomes fomentarius and Tricholoma anatolicum in breast cancer cells (MCF-7) that were resistant to paclitaxel (PTX) and vincristine due to P-gp overexpression [30]. The gene discussed is PGP; the disease is breast carcinoma.