首页|Lack of CD44 variant 6 expression in rectal cancer invasive front associates with early recurrence

Lack of CD44 variant 6 expression in rectal cancer invasive front associates with early recurrence

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AIM:To investigate the prognostic value of CD44 variant 6 (CD44v6),a membranous adhesion molecule,in rectal cancer.METHODS:Altogether,210 rectal cancer samples from 214 patients treated with short-course radiotherapy (RT,n =90),long-course (chemo) RT (n =53) or surgery alone (n =71) were studied with immunohistochemistry for CD44v6.The extent and intensity of membranous and cytoplasmic CD44v6 staining,and the intratumoral membranous staining pattern,were analyzed.RESULTS:Membranous CD44v6 expression was seen in 84% and cytoplasmic expression in 81% of the cases.In 59% of the tumors with membranous CD44v6 expression,the staining pattern in the invasive front was determined as "front-positive" and in 41% as "front-negative".The latter pattern was associated with narrower circumferential margin (P =0.01),infiltrative growth pattern (P < 0.001),and shorter disease-free survival in univariate survival analysis (P =0.022) when compared to the "front-positive" tumors.CONCLUSION:The lack of membranous CD44v6 in the rectal cancer invasive front could be used as a method to identify patients at increased risk for recurrent disease.

CD44 variant 6Rectal cancerInvasive frontDisease-free survivalDisease-specific survival

Suvi Tuulia Avoranta、Eija Annika Korkeila、Kari Juhani Syrj(a)nen、Seppo Olavi Pyrh(o)nen、Jari Toivo Tapio Sundstr(o)m

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Department of Oncology and Radiotherapy, University of Turku and Turku University Hospital, FIN-20521 Turku, Finland

Department of Pathology, University of Turku and Turku University Hospital, FIN-20520 Turku, Finland

2012

世界胃肠病学杂志(英文版)
太原消化病研治中心

世界胃肠病学杂志(英文版)

SCI
影响因子:1.001
ISSN:1007-9327
年,卷(期):2012.18(33)
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