Imaging of Protein Synthesis: In Vitro and In Vivo Evaluation of Sc-44-DOTA-Puromycin

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F13%3A00391532" target="_blank" >RIV/61389005:_____/13:00391532 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/content/pdf/10.1007%2Fs11307-012-0561-3" target="_blank" >http://link.springer.com/content/pdf/10.1007%2Fs11307-012-0561-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11307-012-0561-3" target="_blank" >10.1007/s11307-012-0561-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Imaging of Protein Synthesis: In Vitro and In Vivo Evaluation of Sc-44-DOTA-Puromycin

Popis výsledku v původním jazyce

he purpose of this study was to investigate whether Sc-44-labeled puromycin can be utilized for imaging of protein synthesis in vivo. For micro-positron emission tomographic (mu PET) studies, 20-25 MBq of [Sc-44]-DOTA-puromycin was administered to tumor-bearing rats, and animals were scanned for 1 h dynamically. Results were further validated by dissecting organs and tissues of the animals after the measurement and in vitro blocking experiments using puromycin or cycloheximide to block protein synthesis. mu PET images of tumor-bearing rats showed significant tumor uptake of [Sc-44]-DOTA-puromycin and a clear-cut tumor visualization. In both blocking experiments, cellular uptake of [Sc-44]-DOTA-puromycin ([Sc-44]-DOTA-Pur) could be suppressed by blocking protein synthesis. We report for the first time successful mu PET imaging with Sc-44 obtained from a Ti-44/Sc-44 generator, as well as noninvasive mu PET imaging of ribosomal activity, respectively protein synthesis, with a puromycin-ba

Název v anglickém jazyce

Imaging of Protein Synthesis: In Vitro and In Vivo Evaluation of Sc-44-DOTA-Puromycin

Popis výsledku anglicky

he purpose of this study was to investigate whether Sc-44-labeled puromycin can be utilized for imaging of protein synthesis in vivo. For micro-positron emission tomographic (mu PET) studies, 20-25 MBq of [Sc-44]-DOTA-puromycin was administered to tumor-bearing rats, and animals were scanned for 1 h dynamically. Results were further validated by dissecting organs and tissues of the animals after the measurement and in vitro blocking experiments using puromycin or cycloheximide to block protein synthesis. mu PET images of tumor-bearing rats showed significant tumor uptake of [Sc-44]-DOTA-puromycin and a clear-cut tumor visualization. In both blocking experiments, cellular uptake of [Sc-44]-DOTA-puromycin ([Sc-44]-DOTA-Pur) could be suppressed by blocking protein synthesis. We report for the first time successful mu PET imaging with Sc-44 obtained from a Ti-44/Sc-44 generator, as well as noninvasive mu PET imaging of ribosomal activity, respectively protein synthesis, with a puromycin-ba

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FR - Farmakologie a lékárnická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/2B06165" target="_blank" >2B06165: Příprava pozitronových zářičů Y-86 a I-124 pro zobrazování pomocí PET, studium jejich separace z ozářené matrice a značení vybraných perspektivních nosičů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Molecular Imaging and Biology

ISSN

1536-1632

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

79-86

Kód UT WoS článku

000314033000010

EID výsledku v databázi Scopus

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