001     166693
005     20240229133528.0
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024 7 _ |a 1791-7549
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037 _ _ |a DKFZ-2021-00046
041 _ _ |a eng
082 _ _ |a 610
100 1 _ |a Zwicker, Felix
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245 _ _ |a In Vivo Evaluation of Combined CK2 Inhibition and Irradiation in Human WiDr Tumours.
260 _ _ |a Kapandriti, Attiki
|c 2021
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520 _ _ |a Casein kinase 2 (CK2) which sustains multiple pro-survival functions in cellular DNA-damage response, is strictly regulated in normal cells but elevated in cancer. CK2 is considered as a potential therapeutic target, and its inhibition has been associated with radiosensitization in mammalian cells in vitro. Here, we investigated potential radiosensitization by CK2 inhibition in vivo.The effect of CK2 inhibition in vivo was investigated in human WiDr-xenograft tumours grown subcutaneously on BALB/c nu/nu mice with and without fractionated irradiation. CK2 inhibition was performed using the specific inhibitor tetra-bromobenzotriazole (TBB). Histological examinations included staining for apoptosis and double-strand breaks.Both TBB treatment alone and radiation alone significantly reduced tumour growth, which was reflected by increased apoptosis rates. However, TBB treatment did not boost radiation-induced tumour growth suppression in combined treatment, although the apoptosis rate increased and repair of double-strand breaks was reduced. This was in stark contrast to previous data on in vitro radiosensitization.The absence of radiosensitization by CK2 inhibition should be investigated in different tumour models.
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650 _ 7 |a CK2 inhibition
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650 _ 7 |a TBB
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650 _ 7 |a human WiDr tumours
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650 _ 7 |a irradiation
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650 _ 7 |a tetra-bromobenzotriazole
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700 1 _ |a Hauswald, Henrik
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700 1 _ |a Weber, Klaus-Josef
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700 1 _ |a Debus, JÜrgen
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700 1 _ |a Huber, Peter
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773 _ _ |a 10.21873/invivo.12238
|g Vol. 35, no. 1, p. 111 - 117
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|t In vivo
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910 1 _ |a Deutsches Krebsforschungszentrum
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