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World Journal of Surgery

, Volume 36, Issue 2, pp 310–317 | Cite as

BRAFV600E Mutation is Associated with Tumor Aggressiveness in Papillary Thyroid Cancer

  • Su-jin Kim
  • Kyu Eun Lee
  • Jun Pyo Myong
  • Jeong-hwan Park
  • Yoon Kyung Jeon
  • Hye Sook Min
  • So Yeon Park
  • Kyeong Cheon Jung
  • Do Hoon Koo
  • Yeo-Kyu YounEmail author
Article

Abstract

Background

The BRAFV600E mutation is the most common genetic alteration found in papillary thyroid cancer (PTC). Recent studies show that this mutation occurs more frequently in patients with PTC showing aggressive clinicopathologic features. The aim of the present study was to evaluate the prevalence of the BRAFV600E mutation in tumor samples and its association with high-risk clinicopathologic features prospectively.

Patients and methods

From February 2009 to January 2010, 547 PTC patients who underwent surgery in Seoul National University Hospital were enrolled in the study. Polymerase chain reaction was used to amplify exon 15 of the BRAF gene from paraffin-embedded thyroid tumor specimens, followed by direct sequencing to detect the BRAFV600E mutation. Both univariate and multivariate analyses were performed to analyze associations between the BRAFV600E mutation and clinicopathologic features.

Results

The BRAFV600E mutation was found in 381/547 (69.7%) patients with primary PTC. The BRAFV600E mutation was significantly associated with age (≥45 years), tumor size (>1 cm), extrathyroidal extension, and cervical lymph node metastases (P < 0.05). Multiple logistic regression showed that it was significantly associated with gender (OR = 1.834; 95% CI 1.021–3.463), tumor size (OR = 1.972; 95% CI 1.250–3.103), and extra-thyroidal extension (OR = 2.428; 95% CI 1.484–3.992), but not with age, multifocality, lymph node metastases, and advanced disease stage. The proportion of BRAFV600E mutation was significantly associated with the number of high-risk factors of tumor recurrence (P < 0.001).

Conclusions

The BRAFV600E mutation was associated with high-risk clinicopathologic characteristics in patients with PTC. The BRAFV600E mutation may be a potential prognostic factor in PTC patients.

Keywords

Thyroid Cancer Papillary Thyroid Cancer Differentiate Thyroid Cancer Extrathyroidal Extension BRAFV600E Mutation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Société Internationale de Chirurgie 2011

Authors and Affiliations

  • Su-jin Kim
    • 1
  • Kyu Eun Lee
    • 2
    • 3
  • Jun Pyo Myong
    • 4
  • Jeong-hwan Park
    • 5
  • Yoon Kyung Jeon
    • 5
  • Hye Sook Min
    • 5
  • So Yeon Park
    • 5
  • Kyeong Cheon Jung
    • 5
  • Do Hoon Koo
    • 6
  • Yeo-Kyu Youn
    • 2
    • 3
    Email author
  1. 1.Department of Surgery, Haeundae Paik HospitalInje University College of MedicineBusanKorea
  2. 2.Department of SurgerySeoul National University College of Medicine and HospitalSeoulKorea
  3. 3.Cancer Research InstituteSeoul National University College of MedicineSeoulKorea
  4. 4.Graduate School of MedicineThe Catholic University of KoreaSeoulKorea
  5. 5.Department of PathologySeoul National University College of MedicineSeoulKorea
  6. 6.Department of SurgerySeoul National University Boramae Medical CenterSeoulKorea

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