Fol. Biol. 2010, 56, 183-193

https://doi.org/10.14712/fb2010056040183

Gene Regulation by BCL3 in a Cervical Cancer Cell Line

V. Maldonado1, M. Espinosa2, F. Pruefer2, N. Patiño2, G. Ceballos-Cancino2, U. Urzua3, N. Juretic3, Jorge Melendez-Zajgla2

1Molecular Biology Laboratory, Instituto Nacional de Cancerologia, Mexico City, Mexico
2Cancer Functional Genomics Laboratory, National Institute of Genomic Medicine, Mexico City, Mexico
3PBCM, ICBM Facultad de Medicina, Universidad de Chile, Santiago, Chile

Received November 2009
Accepted March 2010

BCL3 is a putative proto-oncogene deregulated in haematopoieitic and solid tumours. It has been suggested that its oncogenic effects could be mediated, at least in part, by inducing proliferation and inhibiting cell death. To provide more insight into the mediators of these effects, we used an unbiased approach to analyse the mRNA expression changes after knocking-down BCL3 using specific shRNAs. One hundred eighty genes were up-regulated and sixtynine genes were down-regulated after knocking down BCL3. Function analyses showed enrichment in genes associated with cellular growth and proliferation, cell death and gene expression. We found that STAT3, an important oncogene in human cancer, was the central node of one of the most significant networks. We validated STAT3 as a bona fide target of BCL3 by additional interference RNA and in silico analyses of previously reported lymphoma patients.

Funding

This work was supported by grant 08-87855 from Consejo Nacional de Ciencia y Tecnologia to J. Meléndez-Zajgla.

References

25 live references