Disordering of human telomeric G-quadruplex with novel antiproliferative anthrathiophenedione

Linear heteroareneanthracenediones have been shown to interfere with DNA functions, thereby causing death of human tumor cells and their drug resistant counterparts. Here we report the interaction of our novel antiproliferative agent 4,11-bis[(2-{[acetimido]amino}ethyl)amino]anthra[2,3-b]thiophene-5...

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Veröffentlicht in:PloS one 2011-11, Vol.6 (11), p.e27151
Hauptverfasser: Kaluzhny, Dmitry, Ilyinsky, Nikolay, Shchekotikhin, Andrei, Sinkevich, Yuri, Tsvetkov, Philipp O, Tsvetkov, Vladimir, Veselovsky, Alexander, Livshits, Mikhail, Borisova, Olga, Shtil, Alexander, Shchyolkina, Anna
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container_issue 11
container_start_page e27151
container_title PloS one
container_volume 6
creator Kaluzhny, Dmitry
Ilyinsky, Nikolay
Shchekotikhin, Andrei
Sinkevich, Yuri
Tsvetkov, Philipp O
Tsvetkov, Vladimir
Veselovsky, Alexander
Livshits, Mikhail
Borisova, Olga
Shtil, Alexander
Shchyolkina, Anna
description Linear heteroareneanthracenediones have been shown to interfere with DNA functions, thereby causing death of human tumor cells and their drug resistant counterparts. Here we report the interaction of our novel antiproliferative agent 4,11-bis[(2-{[acetimido]amino}ethyl)amino]anthra[2,3-b]thiophene-5,10-dione with telomeric DNA structures studied by isothermal titration calorimetry, circular dichroism and UV absorption spectroscopy. New compound demonstrated a high affinity (K(ass)∼10⁶ M⁻¹) for human telomeric antiparallel quadruplex d(TTAGGG)₄ and duplex d(TTAGGG)₄∶d(CCCTAA)₄. Importantly, a ∼100-fold higher affinity was determined for the ligand binding to an unordered oligonucleotide d(TTAGGG TTAGAG TTAGGG TTAGGG unable to form quadruplex structures. Moreover, in the presence of Na+ the compound caused dramatic conformational perturbation of the telomeric G-quadruplex, namely, almost complete disordering of G-quartets. Disorganization of a portion of G-quartets in the presence of K+ was also detected. Molecular dynamics simulations were performed to illustrate how the binding of one molecule of the ligand might disrupt the G-quartet adjacent to the diagonal loop of telomeric G-quadruplex. Our results provide evidence for a non-trivial mode of alteration of G-quadruplex structure by tentative antiproliferative drugs.
doi_str_mv 10.1371/journal.pone.0027151
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Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>Kaluzhny et al. 2011</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c691t-1c6fdf1519a246d80b70b132c74549bd8214f9b370ce93bf5a0bcf6ae699d4673</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216923/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3216923/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79600,79601</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22102877$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Blagosklonny, Mikhail V.</contributor><creatorcontrib>Kaluzhny, Dmitry</creatorcontrib><creatorcontrib>Ilyinsky, Nikolay</creatorcontrib><creatorcontrib>Shchekotikhin, Andrei</creatorcontrib><creatorcontrib>Sinkevich, Yuri</creatorcontrib><creatorcontrib>Tsvetkov, Philipp O</creatorcontrib><creatorcontrib>Tsvetkov, Vladimir</creatorcontrib><creatorcontrib>Veselovsky, Alexander</creatorcontrib><creatorcontrib>Livshits, Mikhail</creatorcontrib><creatorcontrib>Borisova, Olga</creatorcontrib><creatorcontrib>Shtil, Alexander</creatorcontrib><creatorcontrib>Shchyolkina, Anna</creatorcontrib><title>Disordering of human telomeric G-quadruplex with novel antiproliferative anthrathiophenedione</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Linear heteroareneanthracenediones have been shown to interfere with DNA functions, thereby causing death of human tumor cells and their drug resistant counterparts. 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Molecular dynamics simulations were performed to illustrate how the binding of one molecule of the ligand might disrupt the G-quartet adjacent to the diagonal loop of telomeric G-quadruplex. Our results provide evidence for a non-trivial mode of alteration of G-quadruplex structure by tentative antiproliferative drugs.</description><subject>Absorption spectroscopy</subject><subject>Affinity</subject><subject>Anthraquinones - chemical synthesis</subject><subject>Anthraquinones - pharmacology</subject><subject>Antibiotics</subject><subject>Antiproliferatives</subject><subject>Binding</subject><subject>Biology</subject><subject>Calorimetry</subject><subject>Cancer</subject><subject>Cell Proliferation - drug effects</subject><subject>Circular Dichroism</subject><subject>Colonic Neoplasms - drug therapy</subject><subject>Cytotoxicity</subject><subject>Deoxyribonucleic acid</subject><subject>Dichroism</subject><subject>DNA</subject><subject>Drug resistance</subject><subject>Drugs</subject><subject>G-Quadruplexes - drug effects</subject><subject>Glycoproteins</subject><subject>Humans</subject><subject>Leukemia - drug therapy</subject><subject>Medicine</subject><subject>Models, Molecular</subject><subject>Molecular biology</subject><subject>Molecular dynamics</subject><subject>Molecular Dynamics Simulation</subject><subject>Nucleic Acid Conformation - 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Here we report the interaction of our novel antiproliferative agent 4,11-bis[(2-{[acetimido]amino}ethyl)amino]anthra[2,3-b]thiophene-5,10-dione with telomeric DNA structures studied by isothermal titration calorimetry, circular dichroism and UV absorption spectroscopy. New compound demonstrated a high affinity (K(ass)∼10⁶ M⁻¹) for human telomeric antiparallel quadruplex d(TTAGGG)₄ and duplex d(TTAGGG)₄∶d(CCCTAA)₄. Importantly, a ∼100-fold higher affinity was determined for the ligand binding to an unordered oligonucleotide d(TTAGGG TTAGAG TTAGGG TTAGGG unable to form quadruplex structures. Moreover, in the presence of Na+ the compound caused dramatic conformational perturbation of the telomeric G-quadruplex, namely, almost complete disordering of G-quartets. Disorganization of a portion of G-quartets in the presence of K+ was also detected. Molecular dynamics simulations were performed to illustrate how the binding of one molecule of the ligand might disrupt the G-quartet adjacent to the diagonal loop of telomeric G-quadruplex. Our results provide evidence for a non-trivial mode of alteration of G-quadruplex structure by tentative antiproliferative drugs.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22102877</pmid><doi>10.1371/journal.pone.0027151</doi><tpages>e27151</tpages><oa>free_for_read</oa></addata></record>
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subjects Absorption spectroscopy
Affinity
Anthraquinones - chemical synthesis
Anthraquinones - pharmacology
Antibiotics
Antiproliferatives
Binding
Biology
Calorimetry
Cancer
Cell Proliferation - drug effects
Circular Dichroism
Colonic Neoplasms - drug therapy
Cytotoxicity
Deoxyribonucleic acid
Dichroism
DNA
Drug resistance
Drugs
G-Quadruplexes - drug effects
Glycoproteins
Humans
Leukemia - drug therapy
Medicine
Models, Molecular
Molecular biology
Molecular dynamics
Molecular Dynamics Simulation
Nucleic Acid Conformation - drug effects
Oligonucleotides
Oligonucleotides - genetics
Oligonucleotides - metabolism
Potassium - metabolism
Sodium - metabolism
Spectroscopy
Telomerase
Telomere - genetics
Telomere - metabolism
Thiophene
Thiophenes - chemical synthesis
Thiophenes - pharmacology
Titration
Titration calorimetry
Tumor cells
Tumor Cells, Cultured
Ultraviolet absorption
title Disordering of human telomeric G-quadruplex with novel antiproliferative anthrathiophenedione
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