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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Digital Transcript Profile Analysis with aRNA-LongSAGE Validates FERMT1 As a Potential Novel Prognostic Marker for Colon Cancer.

PURPOSE: To use gene transcript profiling to identify cancer-associated gene expression. EXPERIMENTAL DESIGN: Methods included (i) marker discovery using laser capture microdissection (LCM)-assisted specimen preparation and antisense RNA-long serial analysis of gene expression (aRNA-LongSAGE) on matched colon cancer and uninvolved colon tissue specimens (n = 5). Candidate tumor-associated genes were selected by combining the LongSAGE libraries reported herein with our previous colon cancer LCM-microarray transcript profiling data; (ii) marker selection and validation by quantitative real-time PCR (n = 15) and immunohistochemistry (n = 31); and (iii) independent validation on multiple tissue microarray (n = 203). RESULTS: Among 30 upregulated and 73 downregulated genes, upregulation of fermitin family member 1 (FERMT1), adenosylhomocysteinase (AHCY), secernin 1 (SCRN1), and SAC3 domain-containing protein 1 (SAC3D1) expression and downregulation of IgJ and MALL expression in colon cancer were confirmed by quantitative PCR. FERMT1 and AHCY protein expression was also upregulated in colon cancer compared with uninvolved colon mucosa, and FERMT1 expression showed upregulation in colon adenoma. Patients with moderate/strong tumor FERMT1 protein expression (n = 122) showed significantly poorer overall survival (OS; P = 0.011) and disease-free survival (DFS; P = 0.005) than patients with negative/weak tumor FERMT1 protein expression (n = 81). Multivariate Cox regression analysis showed that FERMT1 protein expression was also an independent prognostic factor for OS (P = 0.018) and DFS (P = 0.009). In addition, upregulated FERMT1 protein expression appeared to have some specificity among alimentary tract tumors. CONCLUSIONS: FERMT1 is a novel prognostic factor for colon carcinoma. Clin Cancer Res; 17(9); 2908-18. ©2011 AACR.[1]

References

  1. Digital Transcript Profile Analysis with aRNA-LongSAGE Validates FERMT1 As a Potential Novel Prognostic Marker for Colon Cancer. Fan, J., Yan, D., Teng, M., Tang, H., Zhou, C., Wang, X., Li, D., Qiu, G., Peng, Z. Clin. Cancer Res. (2011) [Pubmed]
 
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