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IARC MONOGRAPHS ON THE EVALUATION OF CARCINOGENIC ...

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Table 6 (contd)<br />

Test system Assay Dose Result Reference<br />

Adduct formation by AAII with deoxyadenosine in vitro in the<br />

presence of xanthine oxidase, anaerobic<br />

Adduct formation by AAI with deoxyadenosine 3′-monophosphate or<br />

deoxyguanosine 3′-monophosphate in vitro in the presence of<br />

xanthine oxidase, anaerobic<br />

Adduct formation by AAII with deoxyadenosine 3′-monophosphate or<br />

deoxyguanosine 3′-monophosphate in vitro in the presence of<br />

xanthine oxidase, anaerobic<br />

Adduct formation by AAI in 18-mer oligonucleotides containing either<br />

a single guanosine or adenosine in the presence of zinc at pH 5.8<br />

Adduct formation by AAII in 18-mer oligonucleotides containing either<br />

a single guanosine or adenosine in the presence of zinc at pH 5.8<br />

Adduct formation by AAI in 30-mer oligonucleotides containing either<br />

a single guanosine or adenosine in the presence of zinc at pH 5.8<br />

Adduct formation by AAII in 30-mer oligonucleotides containing either<br />

a single guanosine or adenosine in the presence of zinc at pH 5.8<br />

UV/vis, fluorescence and<br />

NMR spectroscopy. Adduct<br />

was spectroscopically<br />

identified as dA-AAII.<br />

Butanol extraction-enhanced<br />

32 P-postlabelling<br />

100 μM (with<br />

0.3 μM<br />

substrate)<br />

Standard 32 P-postlabelling 2 mM (with<br />

100 μM<br />

substrate)<br />

Standard 32 P-postlabelling 2 mM (with<br />

100 μM<br />

substrate)<br />

Same adduct is formed<br />

in DNA in vitro and<br />

in vivo<br />

dA-AAI and dG-AAI<br />

dA-AAII and dG-AAII<br />

dA-AAI and dG-AAI<br />

dA-AAII and dG-AAII<br />

Adenine adducts have<br />

greater miscoding<br />

potential than guanine<br />

adducts (see Table 7).<br />

dA-AAI and dG-AAI<br />

dA-AAII and dG-AAII<br />

Adenine adducts<br />

formed by AAI and<br />

AAII and guanine<br />

adducts formed by AAI<br />

block DNA replication<br />

more efficiently than<br />

dG-AAII (see Table 7).<br />

Pfau et al.<br />

(1991)<br />

Stiborová et al.<br />

(1994)<br />

Broschard<br />

et al. (1994)<br />

Broschard<br />

et al. (1995)<br />

SOME TRADITI<strong>ON</strong>AL HERBAL MEDICINES 107

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