RGD Reference Report - Hypomethylation-associated up-regulation of TCF3 expression and recurrence in stage II and III colorectal cancer. - Rat Genome Database

Send us a Message



Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   

Hypomethylation-associated up-regulation of TCF3 expression and recurrence in stage II and III colorectal cancer.

Authors: Li, Chunxiang  Cai, Sanjun  Wang, Xishan  Jiang, Zheng 
Citation: Li C, etal., PLoS One. 2014 Nov 6;9(11):e112005. doi: 10.1371/journal.pone.0112005. eCollection 2014.
RGD ID: 13432058
Pubmed: PMID:25375219   (View Abstract at PubMed)
PMCID: PMC4222969   (View Article at PubMed Central)
DOI: DOI:10.1371/journal.pone.0112005   (Journal Full-text)


BACKGROUND AND OBJECTIVES: Transcription factor 3 (TCF3) implicates Wnt signaling pathway and regulates E-cadherin expression, which is involved in aggressiveness of tumors. This study aims to investigate the role of TCF3 in predicting prognosis of patients with stage II and III colorectal cancer (CRC).
METHODS: Real-Time quantitative PCR was performed in 64 fresh CRC tissues and 6 cell lines to examine TCF3 mRNA expression. TCF3 protein expression dynamics were detected by immunohistochemistry of 118 paraffin-embedded specimens, and the clinical significance of TCF3 was assessed by clinical correlation and Kaplan-Meier analyses. Aberrant hypomethylation of TCF3 promoter was also investigated using bisulfite sequencing and methylation specific PCR.
RESULTS: The up-regulation of TCF3 mRNA was frequently detected both in CRC tissues with recurrence and metastasis-derived cell lines. The expression level of TCF3 protein was significantly correlated with histological type (P = 0.038) and disease-free survival time (P = 0.002). Higher TCF3 expression indicated poor prognostic outcomes (P<0.05, log-rank test). Multivariate analysis also showed strong TCF3 protein expression and perineural invasion were independent adverse prognosticators in CRC (P = 0.010, 0.000). Moreover, it was showed that promoter hypomethylation of TCF3 is associated with its up-expression.
CONCLUSIONS: This study highlighted the prognostic value of TCF3 in stage II and III CRC. The up-regulation of TCF3, which is mainly caused by promoter hypomethylation, is one of the molecular mechanisms involved in the development and progression of CRC.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
colorectal cancer disease_progressionIEP 13432058DNA more ...RGD 
colorectal cancer disease_progressionISOTCF3 (Homo sapiens)13432058; 13432058DNA more ...RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tcf3  (transcription factor 3)

Genes (Mus musculus)
Tcf3  (transcription factor 3)

Genes (Homo sapiens)
TCF3  (transcription factor 3)


Additional Information