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Cell cycle genes co-expression in multiple myeloma and plasma cell leukemia

Fedor Kryukov, Elena Dementyeva, Lenka Kubiczkova, Jiri Jarkovsky, Lucie Brozova, Jakub Petrik, Pavel Nemec, Sabina Sevcikova, Jiri Minarik, Zdena Stefanikova, Petr Kuglik, Roman Hajek

. 2013 ; 102 (4) : 243-249.

Language English Country United States

Document type Journal Article, Research Support, Non-U.S. Gov't

Persistent link   https://www.medvik.cz/link/bmc14064120

Grant support
NT11154 MZ0 CEP Register
NT12130 MZ0 CEP Register
NT13190 MZ0 CEP Register

The objective of this study was to describe co-expression correlations of cell cycle regulatory genes in multiple myeloma (MM) and plasma cell leukemia (PCL). Our results highlight the presence of dynamic equilibrium between co-expression of activator and inhibitor gene sets. Moreover inhibitor set is more sensitive to the activator changes, not vice versa. We have shown that CDKN2A expression is associated with short-term survival in newly diagnosed MM patients (survival was 30.3 ± 3.9 months for 'low' expressed and 7.5 ± 5.6 months for 'high' expressed group, p<0.0001). Moreover low-expression CDKN2A group showed time-to-progression benefit in newly diagnosed patients (remission was 20.8 ± 3.6 months for 'low' and 8.4 ± 2.7 months for 'high' expressed group, p<0.0001) as well as in whole studied cohort of MM patients (remission was 20.8 ± 2.8 months for 'low' and 9.8 ± 1.1 months for 'high' expressed group, p<0.0001). The overexpression of inhibitors can be explained as a compensatory reaction to growing "oncogenic stress".

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