Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells
This work presents the development of a new highly sensitive and selective chemical assay for poly(ADP-ribose) which is routinely useful for the determination of polymer levels in vivo. This method was used to carefully measure poly(ADP-ribose) levels in normal and in DNA-damaged cells. The results...
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North Texas State University
1980
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ndltd-unt.edu-info-ark-67531-metadc3308962018-08-10T05:34:44Z Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells Sims, James L. poly(ADP-ribose) levels normal DNA cells DNA-damaged cells Ribose. DNA repair. DNA -- Synthesis. Cytochemistry -- Technique. This work presents the development of a new highly sensitive and selective chemical assay for poly(ADP-ribose) which is routinely useful for the determination of polymer levels in vivo. This method was used to carefully measure poly(ADP-ribose) levels in normal and in DNA-damaged cells. The results of these studies strongly suggest that synthesis of poly(ADP-ribose) is involved in some aspect of DNA repair. A review of the literature is presented in the introduction of this work. Poly(ADP-ribose) synthesis has been implicated in aspects of transcription, in DNA syn thesis, and in DNA repair largely based on evidence from in vitro studies. It is apparent that current methodology has not allowed the routine quantification of poly(ADP-ribose) in vivo, hence the lack of i^n vivo data concerning the function(s) of the polymer. The body of this work presents the development of two chemical methods for the quantification of poly(ADP-ribose) and the application of one of these methods to the measurement of polymer levels in normal and DNA-damaged cells. Preliminary studies are presented on the utilization of combined gas chromatography/mass spectroscopy for the selective quantification of nucleoside derivatives. A second method makes use of the unique chemistry of the polymer for quantification. The polymer was selectively adsorbed to dihydroxyboryl-sepharose which allowed the removal of most RNA, DNA, and protein from the samples. The polymer was hydrolyzed to the unique nucleoside 2'—^-l*'-ribosyladenosine by digestion with venom phosphodiesterase and bacterial alkaline phosphatase. The 1-N^-etheno derivative of ribosyladenosine was formed by reaction with chloroacetaldehyde and this derivative was seperated from other fluorescent species by reversed phase high pressure liquid chromatography. North Texas State University Jacobson, Myron Gracy, Robert W. Norton, S. J. Jones, Paul R. 1980-12 Thesis or Dissertation vii, 145 leaves : ill. Text local-cont-no: 1002782907-Sims call-no: 379 N81 no. 1669 untcat: b1216968 oclc: 7966719 https://digital.library.unt.edu/ark:/67531/metadc330896/ ark: ark:/67531/metadc330896 English Public Sims, James L. Copyright Copyright is held by the author, unless otherwise noted. All rights reserved. |
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English |
format |
Others
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poly(ADP-ribose) levels normal DNA cells DNA-damaged cells Ribose. DNA repair. DNA -- Synthesis. Cytochemistry -- Technique. |
spellingShingle |
poly(ADP-ribose) levels normal DNA cells DNA-damaged cells Ribose. DNA repair. DNA -- Synthesis. Cytochemistry -- Technique. Sims, James L. Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
description |
This work presents the development of a new highly sensitive and selective chemical assay for poly(ADP-ribose) which is routinely useful for the determination of polymer levels in vivo. This method was used to carefully measure poly(ADP-ribose) levels in normal and in DNA-damaged cells. The results of these studies strongly suggest that synthesis of poly(ADP-ribose) is involved in some aspect of DNA repair. A review of the literature is presented in the
introduction of this work. Poly(ADP-ribose) synthesis has
been implicated in aspects of transcription, in DNA syn
thesis, and in DNA repair largely based on evidence from in
vitro studies. It is apparent that current methodology has
not allowed the routine quantification of poly(ADP-ribose) in vivo, hence the lack of i^n vivo data concerning the function(s) of the polymer. The body of this work presents the development of two chemical methods for the quantification of poly(ADP-ribose) and the application of one of these methods to the measurement of polymer levels in normal and DNA-damaged cells. Preliminary studies are presented on the utilization of combined gas chromatography/mass spectroscopy for the selective quantification of nucleoside derivatives. A second method makes use of the unique chemistry of the polymer for quantification. The polymer was selectively adsorbed to dihydroxyboryl-sepharose which allowed the removal of most RNA, DNA, and protein from the samples. The polymer was hydrolyzed to the unique nucleoside 2'—^-l*'-ribosyladenosine by digestion with venom phosphodiesterase and bacterial alkaline phosphatase. The 1-N^-etheno derivative of ribosyladenosine was formed by reaction with chloroacetaldehyde and this derivative was seperated from other fluorescent species by reversed phase high pressure liquid chromatography. |
author2 |
Jacobson, Myron |
author_facet |
Jacobson, Myron Sims, James L. |
author |
Sims, James L. |
author_sort |
Sims, James L. |
title |
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
title_short |
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
title_full |
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
title_fullStr |
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
title_full_unstemmed |
Quantification of Poly(ADP-ribose) in Normal and in DNA-Damaged Cells |
title_sort |
quantification of poly(adp-ribose) in normal and in dna-damaged cells |
publisher |
North Texas State University |
publishDate |
1980 |
url |
https://digital.library.unt.edu/ark:/67531/metadc330896/ |
work_keys_str_mv |
AT simsjamesl quantificationofpolyadpriboseinnormalandindnadamagedcells |
_version_ |
1718725099981373440 |