A method of suppressing the expression of a multi-drug resistance gene to suppress the production of a protein caused by the expression of the gene, thereby increasing the effectiveness of a chemotherapeutic agent for cancer treatment.

摘要

ABSTRACT OF THE INVENTION The present invention provides, in one aspect, a method of inhibiting the expression of a multi-drug resistance gene in an animal cell which comprises administering to an animal an effective amount of at least one cholesterol absorption inhibitor. In another aspect, it provides a method of inhibiting the production of a protein expressed by a multi-drug resistance gene in an animal cell which comprises administering to an animal an effective amount of at least one cholesterol absorption inhibitor. In another aspect, the present invention provides a method of enhancing the effectiveness of a chemotherapeutic agent in an animal having cancer, which comprises administering to said animal an effective amount of the chemotherapeutic agent and at least one cholesterol absorption inhibitor. Further, there are provided compositions and kits for use in cancer treatment which comprise at least one chemotherapeutic agent and at least one cholesterol absorption inhibitor.