Independent Prognostic Value of the Fascin Expression in Patients with Esophageal Cancer

식도암에 있어서 Fascin의 발현과 예후와의 상관관계에 대한 연구

  • Choi, Pill-Jo (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital, College of Medicine, Dong-A University) ;
  • Jeong, Sang-Seok (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital, College of Medicine, Dong-A University) ;
  • Bang, Jung-Heui (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital, College of Medicine, Dong-A University) ;
  • Cho, Kwang-Jo (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital, College of Medicine, Dong-A University) ;
  • Woo, Jong-Soo (Department of Thoracic and Cardiovascular Surgery, Dong-A University Hospital, College of Medicine, Dong-A University) ;
  • Roh, Mee-Sook (Department of Pathology, Dong-A University Hospital, College of Medicine, Dong-A University)
  • 최필조 (동아대학교 의과대학 동아대학교병원 흉부외과학교실) ;
  • 정상석 (동아대학교 의과대학 동아대학교병원 흉부외과학교실) ;
  • 방정희 (동아대학교 의과대학 동아대학교병원 흉부외과학교실) ;
  • 조광조 (동아대학교 의과대학 동아대학교병원 흉부외과학교실) ;
  • 우종수 (동아대학교 의과대학 동아대학교병원 흉부외과학교실) ;
  • 노미숙 (동아대학교 의과대학 동아대학교병원 병리학교실)
  • Published : 2008.02.05

Abstract

Background: Fascin is an actin-bundling protein that induces membrane protrusions and it increases cell motility in various transformed cells. Esophageal cancer is one of the most lethal malignancies, and it exhibits extensive local invasion or frequent regional lymph node metastasis even after curative surgery. We investigate the expression of fascin by performing immunohistochemistry to evaluate the clinical characteristics and prognostic significance of its expression in esophageal cancer patients. Material and Method: Immunochemistry for fascin was performed on 76 tumor samples from 76 patients who underwent esophageal cancer operations. The expression levels of fascin in the 76 esophageal cancer tissues were compared with those in the corresponding normal esophageal epithelium. The fascin-positive samples were defined as those showing more than 75% of fascin-positive cells. Result: Overall, a fascin positive expression was detected in 39 (51.3%) out of the total 76 cases. The tumors with positive fascin expression tended to more frequently show a higher stage (p=0.030), and a higher T-factor (p=0.031). The prognosis of the fascin negative group was significantly better than that of the fascin positive group (p=0.004). Multivariate analysis revealed that lymphovascular invasion and the fascin expression were independent prognostic factors. Conclusion: Fascin was expressed in 513% of the esophageal cancer tissues and a positive expression of fascin was associated with more advanced tumor progression and recurrence. Our study suggests that the fascin expression may be an independent prognostic factor for an unfavorable clinical course few those patients suffering with esophageal cancer.

배경: Fascin은 actin-bundling protein으로 세포막 돌출(cell membrane protrusion)을 야기하고 상피세포의 운동성(motility)을 증가시킨다고 알려져 있다. 식도암은 근치적인 수술 후에도 조기에 광범위한 국소침윤이나 국소 임파절의 전이를 자주 일으키는 치명적인 암의 하나이다. 본 연구의 목적은 식도암에 있어서 fascin에 대한 연구가 국내에서는 거의 없는 상황에서 면역조직화학 염색 방법을 이용하여 fascin의 발현 양상을 알아보고 발현여부에 따른 임상 및 병리학적 특성과 예후인자로서의 의의 등을 알아보고자 하였다. 대상 및 방법: 식도 편평 상피암으로 진단받고 수술을 시행 받은 76명의 한자의 암조직에서 fascin의 발현여부를 면역조직화학염색을 통해 조사하였다. Fascin에 대한 면역조직화학 염색에 대한 판독은 반정량적으로 2등급으로 나누었다. 발현양상에 따른 임상 및 병리학적 특성 및 예후분석을 시행하였다. 결과: 전체 76개의 암조직중 39예(51.3%)에서 Fascin의 발현이 양성이었다. Fascia의 발현은 임상병기가 진행될수록(p=0.030), T 인자가 높을수록(p=0.031) 양성률이 높게 나타났으며 추적기간 중 재발이 있었던 군(p=0.005)과 사망을 한 군(p=0.000)에서 양성 발현율이 통계적으로 유의하게 높았다. 각 임상병리학적 인자들의 예후인자로서 단변량 분석 결과 임파절의 전이유무, 림프판 혈관 침범(lymphovascular invasion)여부, 신경주위침범(perineural invasion)여부, 병기, fascin 발현 여부가 통계적으로 유의한 인자들로 나타났다. 다변량 분석에서는 림프관 혈관 침범(lymphovascula. invasion)여부, fascin 발현 여부가 예후인자로 유의하였다. 결론: Fascin은 식도암조직의 51.3%에서 발현되었으며 이의 양성 발현은 보다 진행된 종양 및 재발과 연관성이 있었다. Fascin의 음성발현군이 양성발현군에 비해 유의하게 예후가 좋았으며 Fascin의 발현 여부가 식도암의 예후 인자로서 유용할 수 있음을 알 수 있었다.

Keywords

References

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