“…Paclitaxel remains a standard treatment for a variety of cancers, including lung, breast, head and neck, and ovary, and may be administered weekly to reduce haematological toxicity either alone or in combination with other anti-tumour agents on an every-week (Green et al, 2005;Le et al, 2006;Schuette et al, 2006;Yamamoto et al, 2006) or a weekly for 3 weeks monthly schedule (Perez et al, 2005;Yeh et al, 2005;Ramalingam et al, 2006;Stathopoulos et al, 2007). Several tumour types that display sensitivity to paclitaxel also show activation of the PI3-kinase/Akt/mTOR signalling pathway (Shayesteh et al, 1999;Hu et al, 2000;Perez-Tenorio et al, 2002;David et al, 2004;Samuels et al, 2004;Saal et al, 2005).…”