Evaluation of REST expression levels in lung cancer cell lines: potential use as a diagnostic tool

Authors

Keywords:

REST, Biomarker, SCLC, Evaluation, Cell lines

Abstract

The aggressiveness of small cell lung cancer (SCLC) is associated with the ability of cancer cells to metastasize. Previous studies have demonstrated the role of REST (RE-1 Silencing Transcription factor) in regulating the neuronal phenotype of SCLC, highlighting its importance as a potential diagnostic target. The aim of this study was to determine whether there is differential REST expression among cell lines from different stages of SCLC, using protein analysis via Western blot. The results showed differential expression of canonical REST in the different cell lines, demonstrating decreased levels and the appearance of truncated REST (tREST) in advanced stages of cancer. These studies constitute some of the first evidence of REST as a potential biomarker for SCLC.

 

Author Biographies

References

Ballas, N, Grunseich C., Lu D. D., Speh J. C. y Mandel G. (2005). REST and its corepressors mediate plasticity of neuronal gene chromatin throughout neurogenesis. Cell, 121(4), 645-57.

Chong, J.A., Tapia-Ramírez, J., Kim, S., Toledo-Aral, J.J., Zheng, Y., Boutros, M.C., Altshuller, Y.M., Frohman, M.A, Kraner, S.D. y Mandel, G. (1995). REST: a mam- malian silencer protein that restricts sodium channel gene expression to neurons. Cell, 80(6), 949-57.

Coulson, J. M., Edgson, J. L., Woll, P. J. y Quinn, J. P. (2000). A splice variant of the neuron-restrictive silencer factor repressor is expressed in small cell lung cancer: a potential role in derepression of neuroendocrine genes and a useful clinical marker. Cancer Research, 60(7), 1840-4.

Fuller, G., Su, X., Price, R., Cohen, Z., Lang, D., Sawaya, R., y Majumder, S. (2005). Many human medulloblasto- ma tumors overexpress repressor element-1 silencing transcription (REST)/neuron-restrictive silencer factor, which can be functionally countered by REST-VP16. Molecular Cancer Therapeutics, 4, 343-349.

Instituto Mexicano del Seguro Social, (Noviembre 20, 2011). Cancer. Obtenido de http://www.imss.gob.mx/ salud-en-linea/cancer/Pages/index.aspx

Lv, H., Pan, G., Zheng, G., Wu, X., Ren, H., Liu, Y. y Wen,

J. (2010). Expression and functions of the repressor ele- ment 1 (RE-1)-silencing transcription factor (REST) in breast cancer. Journal of Cellular Biochemistry, 110, 968 –974.9.

Mayoral, M.A., Zenteno, E., Espinosa, B., Martínez, S. y Guevara J. (2004).m Perspectiva monográfica del cáncer pulmonar: Un enfoque molecular y la metástasis al cere- bro. Revista del Instituto Nacional de Enfermedades Res- piratorias, 17(4), 283-92.

Organización Mundial de la Salud, (Noviembre 20, 2010). Cancer. Obtenido de www.who.int/mediacentre/ factsheets/fs297/es/

Ortuño-Pineda, C., Galindo-Rosales, J. M.., Calderón- Salinas, J. V., Villegas-Sepúlveda, N., Saucedo- Cárdenas, O., De Nova-Ocampo, M. y Valdés, J. (2012). Binding of hnRNP H and U2AF65 to respective G-codes and a poly-uridine tract collaborate in the N50-5'ss selec- tion of the REST N exon in H69 cells. PLoS One, 7, e40315.

Palm, K., Metsis, M. y Timmusk, T. (1999). Neuron- specific splicing of zinc finger transcription factor REST/ NRSF/XBR is frequent in neuroblastomas and conserved in human, mouse and rat. Brain research. Molecular brain research. 72, 30–39.13.

Schoenherr, C. J. y Anderson, D. J. (1995). Silencing is golden: negative regulation in the control of neuronal gene transcription. Current Opinion in Neurobiology. 5, 566–571.14.

Shimojo M. (2006). Characterization of the nuclear target- ing signal of REST/NRSF. Neuroscience Letters, 298, 161-166.

Westbrook, T. F., Martin, E. S., Schlabach, M. R., Leng, Y., Liang, A. C., Feng, B., Zhao, J. J., Roberts, T. M., Man-

del, G., Hannon, G. J., Depinho, R. A., Chin, L. y Elled- ge, S. J. (2005). A genetic screen for candidate tumor suppressors identifies REST. Cell, 121, 837–848.

Zucchato, C., Tartari, M., Crotti, A., Goffredo, D., Valenza, M., Conti., Cataudella, T., Leavitt, B. R., Timmusk, T., Rigamonti, D. y Cattaneo, E. (2003). Huntingtin interacts with REST/NRSF to modulate the transcription of NRSE

-controlled neuronal genes. Nature Genetics, 35(1), 76- 83.

Published

2015-06-25

Data Availability Statement

No

How to Cite

Evaluation of REST expression levels in lung cancer cell lines: potential use as a diagnostic tool. (2015). Tlamati Joaurnal Online, 6(10), 5-14. https://www.revistatlamati.uagro.mx/revista/index.php/tlamati/article/view/17

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