Competitive allele-specific short oligonucleotide hybridization (CASSOH) with enzyme-linked immunosorbent assay (ELISA) for the detection of pharmacogenetic single nucleotide polymorphisms (SNPs).
Individualization of drug therapy through genetic testing would maximize the effectiveness of medication and minimize its risks. Recent progress in genetic testing technologies has been remarkable, and they have been applied for the analysis of genetic polymorphisms that regulate drug responses. Clinical application of genetic information to individual health care requires simple and rapid identification of nucleotide changes in clinical settings. We previously reported a novel DNA diagnostic method for detecting single nucleotide polymorphisms (SNPs) using competitive allele-specific short oligonucleotide hybridization (CASSOH) with an immunochromatographic strip. We have developed the method further in order to incorporate an enzyme-linked immunosorbent assay (ELISA) into the final detection step; this enables multiple SNP detection. Special ELISA chips have been fabricated so that disposal of buffer waste is not required and handling procedures are minimized. This method (CASSOH-ELISA) has been successfully applied for the detection of clinically important SNPs in drug metabolism, such as N-acetyltransferase 2, NAT2*6 (590G>A) and NAT*7 (857G>A), and mitochondrial DNA (1555A>G). It would also facilitate point-of-care genetic testing for potentially diverse clinical applications.
Department of Clinical Pharmaceutics, Tohoku Pharmaceutical University, 4-4-1, Komatsushima, Sendai 981-8558, Japan.
Masahiro
M
Hiratsuka
Aiko
A
Ebisawa
Kanako
K
Sakuyama
Yoichi
Y
Matsubara
Shigeo
S
Kure
Yoshihiro
Y
Soya
Yumiko
Y
Konno
Takamitsu
T
Sasaki
Akiko
A
Kishiba
Michinao
M
Mizugaki
D051046:Amino-Acid N-Acetyltransferase / Q000097:blood / Q000235:genetics; D001191:Arylamine N-Acetyltransferase / Q000097:blood / Q000235:genetics; D015342:DNA Probes; D004272:DNA, Mitochondrial / Q000097:blood / Q000235:genetics; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods*; D006801:Humans; D009693:Nucleic Acid Hybridization / Q000379:methods*; D010597:Pharmacogenetics / Q000379:methods*; D020641:Polymorphism, Single Nucleotide; D015203:Reproducibility of Results; D017421:Sequence Analysis / Q000379:methods
D015342:DNA Probes; D004272:DNA, Mitochondrial; D051046:Amino-Acid N-Acetyltransferase; C494874:NAGS protein, human; D001191:Arylamine N-Acetyltransferase; C478900:NAT2 protein, human