Age-related decrease in an early step of DNA-repair of normal human lymphocytes exposed to ultraviolet-irradiation

A monoclonal antibody-based immunoassay has been used to detect age-related changes in the rate of loss of photoproduct antigenicity from the DNA of peripheral blood lymphocytes irradiated with 10 J m −2 uv-C. Lymphocytes were obtained from 75 healthy volunteers whose ages ranged from 14 months to 8...

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Veröffentlicht in:Exp. Cell Res.; (United States) 1989, Vol.180 (1), p.171-177
Hauptverfasser: Roth, M., Emmons, L.R., Häner, M., Müller, Hj, Boyle, J.M.
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container_start_page 171
container_title Exp. Cell Res.; (United States)
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creator Roth, M.
Emmons, L.R.
Häner, M.
Müller, Hj
Boyle, J.M.
description A monoclonal antibody-based immunoassay has been used to detect age-related changes in the rate of loss of photoproduct antigenicity from the DNA of peripheral blood lymphocytes irradiated with 10 J m −2 uv-C. Lymphocytes were obtained from 75 healthy volunteers whose ages ranged from 14 months to 82 years. The samples were divided by age decades into groups of 10 individuals, except the first decade which contained only 5 individuals. The mean loss of antigenicity ±1 standard deviation was determined for each group at 10, 30, and 60 min after irradiation. The data were analyzed by Mann-Whitney U test and by the Kruskal-Wallis test. After a recovery period of 10 min the loss of antigenicity was most rapid in group I (0–9 years), less rapid in group II (10–19 years), and least rapid in all other groups. The differences between groups became less at 30 min and were not significant at 60 min incubation. These data obtained from normal cells concur with our previous conclusions, that reductions in the rate of loss of antigenicity in nondiseased cells isolated from patients with melanoma and dysplastic naevus syndrome reflect genetic abnormalities in these patients.
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Psychology ; GENETIC EFFECTS ; GENETIC RADIATION EFFECTS ; Humans ; IMMUNOASSAY ; Immunoenzyme Techniques ; Infant ; LEUKOCYTES ; LYMPHOCYTES ; Lymphocytes - metabolism ; Lymphocytes - radiation effects ; MAMMALS ; MAN ; MATERIALS ; Middle Aged ; Molecular and cellular biology ; Molecular genetics ; MONOCLONAL ANTIBODIES ; Mutagenesis. Repair ; NUCLEIC ACIDS ; ORGANIC COMPOUNDS ; PRIMATES ; RADIATION EFFECTS ; RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT ; RADIATIONS ; RECOVERY ; REPAIR ; SOMATIC CELLS ; ULTRAVIOLET RADIATION ; Ultraviolet Rays ; VERTEBRATES</subject><ispartof>Exp. 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Cell Res.; (United States)</title><addtitle>Exp Cell Res</addtitle><description>A monoclonal antibody-based immunoassay has been used to detect age-related changes in the rate of loss of photoproduct antigenicity from the DNA of peripheral blood lymphocytes irradiated with 10 J m −2 uv-C. Lymphocytes were obtained from 75 healthy volunteers whose ages ranged from 14 months to 82 years. The samples were divided by age decades into groups of 10 individuals, except the first decade which contained only 5 individuals. The mean loss of antigenicity ±1 standard deviation was determined for each group at 10, 30, and 60 min after irradiation. The data were analyzed by Mann-Whitney U test and by the Kruskal-Wallis test. After a recovery period of 10 min the loss of antigenicity was most rapid in group I (0–9 years), less rapid in group II (10–19 years), and least rapid in all other groups. The differences between groups became less at 30 min and were not significant at 60 min incubation. 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subjects 560120 - Radiation Effects on Biochemicals, Cells, & Tissue Culture
Adolescent
Adult
AGE DEPENDENCE
Aged
Aged, 80 and over
Aging
ANIMAL CELLS
ANIMALS
ANTIBODIES
ANTIGENS
Biological and medical sciences
BIOLOGICAL EFFECTS
BIOLOGICAL MATERIALS
BIOLOGICAL RADIATION EFFECTS
BIOLOGICAL RECOVERY
BIOLOGICAL REPAIR
BLOOD
BLOOD CELLS
BODY FLUIDS
Child
Child, Preschool
CONNECTIVE TISSUE CELLS
DNA
DNA - analysis
DNA - immunology
DNA REPAIR
ELECTROMAGNETIC RADIATION
Fundamental and applied biological sciences. Psychology
GENETIC EFFECTS
GENETIC RADIATION EFFECTS
Humans
IMMUNOASSAY
Immunoenzyme Techniques
Infant
LEUKOCYTES
LYMPHOCYTES
Lymphocytes - metabolism
Lymphocytes - radiation effects
MAMMALS
MAN
MATERIALS
Middle Aged
Molecular and cellular biology
Molecular genetics
MONOCLONAL ANTIBODIES
Mutagenesis. Repair
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PRIMATES
RADIATION EFFECTS
RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT
RADIATIONS
RECOVERY
REPAIR
SOMATIC CELLS
ULTRAVIOLET RADIATION
Ultraviolet Rays
VERTEBRATES
title Age-related decrease in an early step of DNA-repair of normal human lymphocytes exposed to ultraviolet-irradiation
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