Decreased ATP-binding cassette transporter A1 (ABCA1) and ABCG1 mRNA levels in CRC tumor tissueNo differences in ABCG5 and ABCG8 transcript levels between tumor and control tissuesDecrease in ABCG5 and ABCG8 transcript levels from colon to rectum. This evidence concerns the gene ABCG1 and neoplasm.