Table 3.
Knowledge-base of genotype profile of Taxane treatment good/bad responding patients.
| PGx Profile | ABCB1 alias MDR1 | CYP2C8*3 | CYP3A4*1B | XRCC3 | Effects | |
|---|---|---|---|---|---|---|
| Rs#code Nucleotide Codon | rs104564 23435C>T I1145I | rs2032582 2677G>T/A A893S | rs10509681 771 A>G# K399R | rs2740574 −392A>G 5′UTR | rs1799794 316A>G T241M | |
| MAF* | T = 0.566 | A = 0.43 T = 0.01 | G = 0.131 | G = 0.015 | A = 0.27 | Referred to Caucasian Population |
| Genotype A | CC | GG | TT | AA | AA | Lower neurotoxicity, due to wild type polymorphisms |
| Genotype B | CT | GT/A | CT or TT | AG or GG | AG | PM for CYP2C8*3, probable toxicity |
| Genotype C | TT | TT/AA | CT or TT | AG or GG | AG or GG | Very high risk of cumulative Neuropathy caused by high plasma level of taxane due to PM profiles (CYP2C8* and CYP3A4*22) and low high extrusion from the cells (ABCB1). In addition, probable acute neutropenia (XRCC3) |
MAF, Minor Allele Frequency. PM, poor Metabolizer; source: www.ensembl.org/Multi/Search/Results?q=MAF;_site=ensembl;_page=1;_facet_feature_type=Gene.
Design of the primers and probes were made on complementary DNA strand (T > C).
PM, Poor Metabolizer.