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Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety

Abstract

The relative reactivity of a series of nitroaromatic radiosensitizers toward the C(5') radical intermediate leading to 8,5'-cycloadenosine formation in deoxygenated solutions of irradiated polyadenylic acid (poly A) was assessed using standard competition kinetic analysis. Formation of 8,5'-cycloadenosine was assayed by an indirect, competitive, enzyme-linked immunosorbent assay (ELISA) described in an earlier report. In the absence of oxygen, the nitroaromatics inhibit 8,5'-cyclonucleoside formation in a way which generally increases with radiosensitizer electron affinity. Although hydroxyl radical scavenging by the nitroaromatics may account for a relatively small decrease in 8,5'cyclonucleoside formation, the data suggest that oxidation of the C(5') radical intermediate is the more plausible explanation for the decreased yield of the 8,5'-cyclonucleoside with increasing nitroaromatic electron affinity.
Publication Date:
Apr 01, 1987
Product Type:
Journal Article
Reference Number:
GBN-87-004187; EDB-87-141074
Resource Relation:
Journal Name: Int. J. Radiat. Biol. Relat. Stud. Phys., Chem. Med.; (United Kingdom); Journal Volume: 51:4
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; AMP; BIOCHEMICAL REACTION KINETICS; ANAEROBIC CONDITIONS; AQUEOUS SOLUTIONS; AROMATICS; HYDROXYL RADICALS; NITRO COMPOUNDS; NUCLEOSIDES; RADIOSENSITIZERS; DISPERSIONS; DRUGS; KINETICS; MIXTURES; NUCLEOTIDES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; RADICALS; REACTION KINETICS; RIBOSIDES; SOLUTIONS; 400201* - Chemical & Physicochemical Properties; 560120 - Radiation Effects on Biochemicals, Cells, & Tissue Culture
OSTI ID:
6085744
Research Organizations:
Cross Cancer Inst., Edmonton, Alberta, CA
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: IJRBA
Submitting Site:
GBN
Size:
Pages: 629-639
Announcement Date:
Aug 01, 1987

Citation Formats

Fuciarelli, A F, Mele, F G, and Raleigh, J A. Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety. United Kingdom: N. p., 1987. Web.
Fuciarelli, A F, Mele, F G, & Raleigh, J A. Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety. United Kingdom.
Fuciarelli, A F, Mele, F G, and Raleigh, J A. 1987. "Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety." United Kingdom.
@misc{etde_6085744,
title = {Interaction of nitroaromatic radiosensitizers with irradiated polyadenylic acid as measured by an indirect immunochemical assay with specificity for the 8,5'-cycloadenosine moiety}
author = {Fuciarelli, A F, Mele, F G, and Raleigh, J A}
abstractNote = {The relative reactivity of a series of nitroaromatic radiosensitizers toward the C(5') radical intermediate leading to 8,5'-cycloadenosine formation in deoxygenated solutions of irradiated polyadenylic acid (poly A) was assessed using standard competition kinetic analysis. Formation of 8,5'-cycloadenosine was assayed by an indirect, competitive, enzyme-linked immunosorbent assay (ELISA) described in an earlier report. In the absence of oxygen, the nitroaromatics inhibit 8,5'-cyclonucleoside formation in a way which generally increases with radiosensitizer electron affinity. Although hydroxyl radical scavenging by the nitroaromatics may account for a relatively small decrease in 8,5'cyclonucleoside formation, the data suggest that oxidation of the C(5') radical intermediate is the more plausible explanation for the decreased yield of the 8,5'-cyclonucleoside with increasing nitroaromatic electron affinity.}
journal = []
volume = {51:4}
journal type = {AC}
place = {United Kingdom}
year = {1987}
month = {Apr}
}