The Role of ABC Proteins in Drug Resistant Breast Cancer Cells
Abstract:
This predoctoral training grant, supported by the Department of Defense Breast Cancer Research Program BCRP of the Office of the Congressionally Directed Medical Research Programs CDMRP, aims to study the possible role of ABC transporters in pleitropic drug resistance, using a combination of molecular biological, biochemical, and biophysical methods. The second year of funding was spent working with a member of a drugmetabolite transporter superfamily called the Plasmodium falciparum Chloroquine Transporter PfCRT. While PfCRT is known to be the main molecular determinant of chloroquine resistance, there is only indirect proof of its interaction with the drug. Therefore, I have employed a methodology commonly applied to drug resistance proteins such as human P-glycoprotein and labeled PfCRT with a photoaffinity drug analogue. A manuscript is currently in preparation detailing my results.