Induction of DNA repair synthesis in human monocytes/B-lymphocytes compared with T-lymphocytes after exposure to N-acetoxy-N-acetylaminofluorene and dimethylsulfate in vitro
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Induction of DNA repair synthesis in human monocytes/B-lymphocytes compared with T-lymphocytes after exposure to N-acetoxy-N-acetylaminofluorene and dimethylsulfate in vitro. / Knudsen, Lisbeth E.; Ryder, L P; Wassermann, K.
In: Carcinogenesis, Vol. 13, No. 7, 07.1992, p. 1285-7.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - Induction of DNA repair synthesis in human monocytes/B-lymphocytes compared with T-lymphocytes after exposure to N-acetoxy-N-acetylaminofluorene and dimethylsulfate in vitro
AU - Knudsen, Lisbeth E.
AU - Ryder, L P
AU - Wassermann, K
PY - 1992/7
Y1 - 1992/7
N2 - We have explored the induction of DNA repair synthesis in monocyte/B- and T-lymphocyte enriched cell fractions from 12 different human mononuclear blood cell populations. Unscheduled DNA synthesis was measured in monocyte/B- and T-cells after exposure to the DNA-damaging agents dimethylsulfate (DMS) and N-acetoxy-N-acetylaminofluorene in vitro. Also, the binding of DMS to DNA was measured. An increased DNA repair synthesis was measured in monocyte/B-lymphocytes after induction of the two different types of DNA lesions, whereas no induction of unscheduled DNA synthesis was observed in T-lymphocytes. A significantly higher DMS-DNA binding was also observed in monocyte/B-lymphocytes when compared with T-lymphocytes. Specific characterization of mononuclear blood cell populations used in biomonitoring of DNA adducts and repair is recommended.
AB - We have explored the induction of DNA repair synthesis in monocyte/B- and T-lymphocyte enriched cell fractions from 12 different human mononuclear blood cell populations. Unscheduled DNA synthesis was measured in monocyte/B- and T-cells after exposure to the DNA-damaging agents dimethylsulfate (DMS) and N-acetoxy-N-acetylaminofluorene in vitro. Also, the binding of DMS to DNA was measured. An increased DNA repair synthesis was measured in monocyte/B-lymphocytes after induction of the two different types of DNA lesions, whereas no induction of unscheduled DNA synthesis was observed in T-lymphocytes. A significantly higher DMS-DNA binding was also observed in monocyte/B-lymphocytes when compared with T-lymphocytes. Specific characterization of mononuclear blood cell populations used in biomonitoring of DNA adducts and repair is recommended.
KW - Acetoxyacetylaminofluorene
KW - B-Lymphocytes
KW - Cells, Cultured
KW - DNA Repair
KW - DNA Replication
KW - Humans
KW - Monocytes
KW - Sulfuric Acid Esters
KW - T-Lymphocytes
M3 - Journal article
C2 - 1638700
VL - 13
SP - 1285
EP - 1287
JO - Carcinogenesis
JF - Carcinogenesis
SN - 0143-3334
IS - 7
ER -
ID: 137758792