Association of ABCB1 T-129C polymorphism and multiple myeloma risk in Polish population

The possible interaction between gene polymorphism and cancer risk development is a very interesting issue. The genetic variants of the ATP-binding cassette superfamily B member 1 (ABCB1) are known to be involved in developing cancer risk and individual differences in chemotherapeutic response. Polymorphisms may affect the reduction of the activity and/or expression of important protective cellular proteins. The increased exposure to toxic compounds, including carcinogens is associated with an increased risk of developing cancers. The present study was aimed to evaluate the possible effect of ABCB1 T-129C single nucleotide polymorphism in risk of cancer development in Polish patients diagnosed with multiple myeloma. 91 multiple myeloma patients and 94 healthy controls were enrolled in this case-control study. The ABCB1 T-129C genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism method (PCR-RFLP). The distribution of particular genotypes between multiple myeloma patients and controls group was not significantly different for T-129C SNP (p = 0.4297). The studied polymorphism does not seem to affect the increased risk of multiple myeloma development.