Journal of Cancer Research and Clinical Oncology

, Volume 132, Issue 4, pp 241–247

Decreased galectin-3 expression during the progression of cervical neoplasia

  • Jeong-Won Lee
  • Sang Yong Song
  • Jung-Joo Choi
  • Chel Hun Choi
  • Tae-Joong Kim
  • Jhingook Kim
  • Je-Ho Lee
  • Byoung-Gie  Kim
  • Duk-Soo  Bae
Original Paper

DOI: 10.1007/s00432-005-0069-1

Cite this article as:
Lee, JW., Song, S.Y., Choi, JJ. et al. J Cancer Res Clin Oncol (2006) 132: 241. doi:10.1007/s00432-005-0069-1

Abstract

Purpose: Galectin-3 is expressed widely in epithelial and immune cells and the level of expression varies in many cancer cells relative to the normal tissues from which they arise. We investigated whether the expression of galectin-3 is associated with the progression of cervical neoplasia. Methods: Galectin-3 expression was evaluated in fresh frozen tissues of cervical carcinoma using real-time quantitative RT-PCR. In addition, galectin-3 expression was evaluated at the protein level by immunohistochemistry in 90 formalin-fixed paraffin-embedded cervical tissues, 10 normal cervical specimens, 20 low-grade squamous intraepithelial lesions (LSILs), 20 high-grade squamous intraepithelial lesions (HSILs), and 40 invasive squamous cell carcinomas (ISCCs). Results: Real-time quantitative RT-PCR revealed that galectin-3 expressions in tumor cells were significantly downregulated compared with corresponding normal tissue (P=0.005). Moreover, immunohistochemistry showed that galectin-3 expression was strong in all normal cervical squamous epithelia and gradually decreased in accordance with the histopathologic grades in order LSIL > HSIL > ISCC (P<0.001). Conclusions: These data constitute the first observation that the expression of galectin-3 is downregulated in cervical cancer tissues and suggest that the decreased expression of this galactoside-binding lectin is associated with the progression of cervical neoplasia.

Keywords

Cervix neoplasms Cervical intraepithelial neoplasia Galectin-3 Carcinoma Squamous cell 

Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Jeong-Won Lee
    • 1
  • Sang Yong Song
    • 2
  • Jung-Joo Choi
    • 1
  • Chel Hun Choi
    • 1
  • Tae-Joong Kim
    • 1
  • Jhingook Kim
    • 3
  • Je-Ho Lee
    • 1
  • Byoung-Gie  Kim
    • 1
  • Duk-Soo  Bae
    • 1
  1. 1.Department of Obstetrics & Gynecology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
  2. 2.Department of Pathology, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea
  3. 3.Department of Thoracic Surgery, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea