The disclosure provides rifamycin and rifamycin derivative compositions, including rifabutin and rifabutin derivative compositions able to cause drug-sensitization in a cancer cell or inhibition of a cancer cell. The disclosure also provides methods of administering such compositions to cancer cells to sensitize them to drugs, such as chemotherapeutics, or directly inhibit them. The disclosure also provides methods of administering such compositions to increase reactive oxygen species (ROS), particularly superoxides, in cancer cells. The disclosure further provides methods of determining whether a cancer will respond to chemotherapeutics and whether to administer rifamycin or a rifamycin derivative based on ROS levels in cancer cells of a patient.
                            本披露提供
利福霉素和
利福霉素衍
生物组合物,包括能够导致癌细胞药物敏感性或抑制癌细胞的利福布丁和利福布丁衍
生物组合物。本披露还提供了将这些组合物直接注入癌细胞或注射药物,如化疗药物,以增强癌细胞对药物的敏感性的方法。本披露还提供了将这些组合物注入癌细胞以增加反应性氧化物种(ROS),尤其是超氧化物,在癌细胞中的方法。本披露还提供了一种确定癌细胞是否对化疗药物产生反应以及是否基于患者癌细胞中的ROS
水平注射
利福霉素或
利福霉素衍
生物的方法。