Maryam Hosseini Hasanabady
Articles written in Journal of Biosciences
Volume 41 Issue 2 June 2016 pp 313-324 Review
Breast cancer resistance protein (BCRP, ABCP or MXR) / ATP-binding cassette subfamily G member 2 (ABCG2) was characterized as a multidrug resistance efflux transporter in 1998. ABCG2 physiologically acts as a part of a self-defense mechanism for the organism; it enhances eliminating of toxic xenobiotic substances and harmful agents in the intestine, as well as through the blood-brain barrier and placental. ABCG2 recognizes and transports numerous anticancer drugs including conventional chemotherapeutic and new targeted small therapeutic molecules in clinical usage. Development of ABCG2 inhibitors for clinical usage may allow increased penetration of therapeutic agents into sanctuary sites and increased their intestinal absorption. In this report, we review the mechanisms that modulate MDR mediated by the ABC transporter ABCG2 in normal and cancer cells by different levels including, epigenetic modifications, transcriptional, posttranscriptional, translation and posttranslational regulation. Some clinical applications of ABCG2 inhibitors, also is explained.
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