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Cysteine-serine-rich nuclear protein 1
AXUD1, CSRNP1, Taip3, AXIN1 up-regulated
This gene encodes a protein that localizes to the nucleus and expression of this gene is induced in response to elevated levels of axin. The Wnt signalling pathway, which is negatively regulated by axin, is important in axis formation in early development and impaired regulation of this signalling pathway is often involved in tumors. A decreased level of expression of this gene in tumors compared to the level of expression in their corresponding normal tissues suggests that this gene product has a tumor suppressor function. [provided by RefSeq, Jul 2008] (from
Erber et al., Heidelberg, Germany. In J Orofac Orthop, 2014
There is evidence from genome-wide expression analysis (Illumina HumanHT-12 v4 Expression BeadChip Kit; > 30,000 genes) that apoptotic processes are upregulated after the compression of cementoblasts, which is particularly true of the pro-apoptotic gene AXUD1.
Three genes, GNAT1, SEMA3B and AXUD1, with low or no expression in OSCC tissues and the cell line TCA8113 were selected, and the promoter methylation status was further analyzed by methylation-specific PCR (MS-PCR).
Phylogenetic examination shows that axud1 is likely to be the ortholog of the only member of this family present in Drosophila, as well as to the previously described mouse CSRNP1 and to human AXUD1 (Axin upregulated-1).
Among the genes showing altered expression, we focused on one, termed AXUD1 (AXIN1 up-regulated), that revealed enhanced expression in response to exogenously expressed AXIN1 but not to LacZ, a control gene.