2009
DOI: 10.1007/s00277-009-0823-6
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Expression analysis of proteins involved in the non homologous end joining DNA repair mechanism, in the bone marrow of adult de novo myelodysplastic syndromes

Abstract: Myelodysplastic syndromes (MDS) are characterized by genetic instability which is associated with abnormal DNA repair mechanisms. The most lethal type of DNA damage are double strand DNA breaks (DSBs

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Cited by 11 publications
(3 citation statements)
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“…The NHEJ repair mechanism is the main repair pathway in mammalian cells and contributes significantly to the maintenance of genome stability . The NHEJ mechanism is dependent on the Ku70/Ku80 ( XRCC6 / XRCC5 ) heterodimer that binds to DNA ends at DSBs and to DNA Ligase IV for to join the damaged ends .…”
Section: Introductionmentioning
confidence: 99%
“…The NHEJ repair mechanism is the main repair pathway in mammalian cells and contributes significantly to the maintenance of genome stability . The NHEJ mechanism is dependent on the Ku70/Ku80 ( XRCC6 / XRCC5 ) heterodimer that binds to DNA ends at DSBs and to DNA Ligase IV for to join the damaged ends .…”
Section: Introductionmentioning
confidence: 99%
“…This contradiction might be interpreted by the fact that these polymorphisms have been associated with de novo AML, whose pathogenesis is a different molecular procedure compared to MDS. Finally, in an effort to examine a possible role of Non Homologous End Joining (NHEJ) repair mechanism in MDS, we have previously tested the expression of NHEJ protein components in 48 cases of adult de novo MDS (Economopoulou et al 2009). We reported a significantly lower Ligase IV expression level in MDS patients compared to controls and an association of Ku70 expression with more aggressive disease, suggesting a potential role of these two molecules in MDS pathogenesis and clinical presentation.…”
Section: Myelodysplastic Syndromes (Mds)mentioning
confidence: 99%
“…Τα αποτελέσματά τους, ωστόσο, ήταν αντικρουόμενα όσον αφορά το επίπεδο έκφρασης των μορίων αυτών στα περιστατικά ΟΜΛ 307,308. Επίσης, σε μια πρόσφατη μελέτη υποστηρίχθηκε ότι πρωτεΐνες που εμπλέκονται στον μηχανισμό επιδιόρθωσης θραύσεων της διπλής έλικας του DNA μέσω του NHEJ, εκφράζονται στα ΜΔΣ 309. Ο σκοπός της παρούσας μελέτης ήταν η εξέταση της έκφρασης των κύριων πρωτεϊνών του μηχανισμού απόκρισης σε βλάβες του DNA, δηλαδή των pNBS1, pATM και γΗ2ΑΧ, στα κύτταρα του μυελού των οστών σε ασθενείς με de novo ΜΔΣ, και η πιθανή σχέση τους με κλινικές και βιολογικές παραμέτρους, όπως και με την πρόγνωση της νόσου.Η μελέτη περιλαμβάνει 74 περιπτώσεις πρωτοδιαγνωσθέντων de novo ΜΔΣ σε ενήλικες.…”
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