title: Potential application of benzo(a)pyrene-associated adducts (globin or lipid) as blood biomarkers for target organ exposure and human risk assessment.
abstract: In order to investigate the potential application of blood biomarkers as surrogate indicators of carcinogen-adduct formation in target-specific tissues, temporal formation of benzo[a]pyrene (BaP)-associated DNA adducts, protein adducts, or lipid damage in target tissues such as lung, liver, and kidney was compared with globin adduct formation or plasma lipid damage in blood after continuous intraperitoneal (ip) injection of [(3)H]BaP into female ICR mice for 7 d. Following treatment with [(3)H]BaP, formation of [(3)H]BaP-DNA or -protein adducts in lung, liver, and kidney increased linearly, and persisted thereafter. This finding was similar to the observed effects on globin adduct formation and plasma lipid damage in blood. The lungs contained a higher level of DNA adducts than liver or kidneys during the treatment period. Further, the rate of cumulative adduct formation in lung was markedly greater than that in liver. Treatment with a single dose of [(3)H]BaP indicated that BaP-globin adduct formation and BaP-lipid damage in blood reached a peak 48 h after treatment. Overall, globin adduct formation and lipid damage in blood were significantly correlated with DNA adduct formation in the target tissues. These data suggest that peripheral blood biomarkers, such as BaP-globin adduct formation or BaP-lipid damage, may be useful for prediction of target tissue-specific DNA adduct formation, and for risk assessment after exposure.
authors.affiliation: a Department of Biochemistry and Health Science , College of Natural Sciences, Changwon National University , Changwon , Gyeongnam , South Korea.
authors.forename: Seung Jun
authors.initials: SJ
authors.lastname: Kwack
authors.forename: Dae Young
authors.initials: DY
authors.lastname: Kim
authors.forename: Yeon Joo
authors.initials: YJ
authors.lastname: Kim
authors.forename: Tae Hyun
authors.initials: TH
authors.lastname: Roh
authors.forename: Seul Min
authors.initials: SM
authors.lastname: Choi
authors.forename: Duck Soo
authors.initials: DS
authors.lastname: Lim
authors.forename: Han-Seung
authors.initials: HS
authors.lastname: Shin
authors.forename: Hyung Sik
authors.initials: HS
authors.lastname: Kim
authors.forename: Byung-Mu
authors.initials: BM
authors.lastname: Lee
mesh_terms: D000818:Animals; D001564:Benzo(a)pyrene / Q000378:metabolism* / Q000633:toxicity; D015415:Biomarkers / Q000097:blood*; D002274:Carcinogens, Environmental / Q000378:metabolism* / Q000633:toxicity; D018736:DNA Adducts / Q000097:blood* / Q000633:toxicity; D004249:DNA Damage / Q000187:drug effects; D005260:Female; D005914:Globins / Q000378:metabolism* / Q000633:toxicity; D006801:Humans; D007668:Kidney / Q000187:drug effects; D008099:Liver / Q000187:drug effects; D008168:Lung / Q000187:drug effects; D051379:Mice; D008813:Mice, Inbred ICR; D018570:Risk Assessment
chemical_list: D015415:Biomarkers; D002274:Carcinogens, Environmental; D018736:DNA Adducts; C056612:benzo(a)pyrene-DNA adduct; C057266:benzo(a)pyrene-globin adduct; D001564:Benzo(a)pyrene; D005914:Globins