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Annals of Surgical Oncology

Published in:

01-07-2006

PIK3CA and TFRC Located in 3q Are New Prognostic Factors in Esophageal Squamous Cell Carcinoma

Authors: Shinsuke Wada, MD, Tsuyoshi Noguchi, MD, PhD, Shinsuke Takeno, MD, PhD, Katsunobu Kawahara, MD, PhD

Published in: Annals of Surgical Oncology | Issue 7/2006

Abstract

Background

Amplification of the chromosome 3q seems to occur frequently in esophageal squamous cell carcinoma (ESCC). This study analyzed the clinical effect of messenger RNA (mRNA) expression for PIK3CA (the gene that encodes phosphatidylinositol-3 kinase catalytic α-polypeptide) and TFRC (the gene that encodes the transferrin receptor), which map within chromosome 3q in ESCC.

Methods

Formalin-fixed, paraffin-embedded ESCC tissues were examined. Total RNAs were extracted, and reverse transcription products were subjected to polymerase chain reaction amplification of β-actin, PIK3CA, and TFRC.

Results

Expression of β-actin mRNA was detected in 67 (55.8%) of 120 samples, with PIK3CA mRNA expression in 22 (32.8%) of these 67 samples and TFRC mRNA expression in 15 (22.4%) of the 67 samples. PIK3CA mRNA expression correlated with regional lymph node metastasis (P = .04). TFRC mRNA expression correlated with distant metastasis (P = .04). Patients with positive results for either PIK3CA or TFRC mRNA displayed a significantly worse prognosis than patients with negative results (PIK3CA, P = .045; TFRC, P = .009). TFRC mRNA expression represented an independent prognostic factor in multivariate analysis (P = .0233), but PIK3CA did not (P = .7585).

Conclusions

PIK3CA and TFRC mRNA represent prognostic factors in patients with ESCC. TFRC mRNA offers an independent prognostic factor, and expression may have clinically important implications.

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Title: PIK3CA and TFRC Located in 3q Are New Prognostic Factors in Esophageal Squamous Cell Carcinoma
Authors: Shinsuke Wada, MD
Tsuyoshi Noguchi, MD, PhD
Shinsuke Takeno, MD, PhD
Katsunobu Kawahara, MD, PhD
Publication date: 01-07-2006
Publisher: Springer-Verlag
Published in: Annals of Surgical Oncology / Issue 7/2006
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI: https://doi.org/10.1245/ASO.2006.08.006

Keynote webinar | Spotlight on medication adherence

Springer Medicine

PIK3CA and TFRC Located in 3q Are New Prognostic Factors in Esophageal Squamous Cell Carcinoma

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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