Dietmaier, Wolfgang and Bettstetter, Marcus and Wild, Peter J. and Woenckhaus, Matthias and Rümmele, Petra and Hartmann, Arndt and Dechant, Stefan and Blaszyk, Hagen and Pauer, Armin and Klinkhammer-Schalke, Monika and Hofstädter, Ferdinand (2006) Nuclear Maspin expression is associated with response to adjuvant 5-fluorouracil based chemotherapy in patients with stage III colon cancer. International journal of cancer. Journal international du cancer 118 (9), pp. 2247-2254.
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Other URL: http://dx.doi.org/10.1002/ijc.21620
Maspin, a member of the Serpin protease inhibitor family, is overexpressed in poorly differentiated colorectal tumors and more frequently found in tumors with microsatellite instability. Immunohistochemical nuclear Maspin staining is predominantly seen in tumor cells at the invasion front of such cancers, suggesting that this molecule is associated with local tumor cell infiltration and aggressiveness. In a retrospective study, we studied nuclear Maspin expression as a potential prognostic tool in a total of 172 primary stage III colon cancers by immunohistochemistry. Of those 172 patients, 76 were treated by surgery only, and 96 patients received additional adjuvant 5-fluorouracil (5-FU) based chemotherapy. Nuclear Maspin expression was an independent adverse prognostic factor for overall survival in our patient cohort (hazard ratio 2.08; 95% CI, 1.13-3.81; p = 0.018). However, patients with primary tumors expressing Maspin in the nucleus showed a significant treatment benefit from 5-FU chemotherapy (hazard ratio 0.384; 95% CI, 0.188-0.784; p = 0.009) compared to adjuvantly treated patients whose tumors did not express this molecule. Nuclear Maspin expression is highly predictive of 5-FU chemotherapy response in patients with advanced stage colon cancer. Patients with negative immunohistochemical Maspin expression do not benefit from 5-FU treatment and may be candidates for an alternative (non-5-FU based) adjuvant therapy regime.
|Date:||1 May 2006|
|Institutions:||Medicine > Lehrstuhl für Pathologie|
|Keywords:||colon cancer; Maspin; prediction; 5-flourouracil; chemotherapy|
|Subjects:||600 Technology > 610 Medical sciences Medicine|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||31 Mar 2010 09:18|
|Last Modified:||31 Mar 2010 09:18|