“…Some of them are closely related to bioenergetic stress and cancer cell metabolism (CD133, ALDH1) [26][27][28], and others are expressed to differing degrees at different stages of the cell cycle [29,30]. Despite such limitations, it has been shown that carcinoma cells overexpress CD133, CD44, ALDH1, Bmi-1 and other currently known CSC markers, and that they are resistant to ionizing radiation and chemotherapeutic drugs [28,29,31,32]. Most reports on the molecular patterns of CSCs are based on findings in carcinoma cells positive for any of the above CSC markers.…”