PURPOSE: Plasminogen activator inhibitor-1 (PAI-1) plays an important role in cancer invasion and metastasis. A common polymorphism (4G/5G) in the promoter region of the PAI-1 gene has been reported to influence transcription and plasma levels of PAI-1. We evaluated the association between PAI-1 4G/5G polymorphism and breast cancer survival in a population-based cohort of breast cancer patients. EXPERIMENTAL DESIGN: Included in this analysis were 1,083 Chinese women diagnosed with stage 0 to III primary breast cancer at age 25 to 64 years who were recruited between 1996 and 1998 for the Shanghai Breast Cancer Study and followed for a median of 5.2 years. The Kaplan-Meier method and Cox model were used to evaluate the genotype and survival association. RESULTS: After adjustment for known prognostic factors for breast cancer, patients homozygous for the 4G allele had significantly poorer disease-free survival [hazard ratio (HR), 1.7; 95% confidence interval (95% CI), 1.1-2.4] and overall survival (HR, 1.5; 95% CI, 1.0-2.3) than those homozygous for the 5G allele. The association was more evident in patients with advanced disease. The HRs (95% CI) were 3.5 (1.4-9.0) for disease-free survival and 3.1 (1.1-8.3) for overall survival in stage III patients. CONCLUSIONS: The PAI-1 4G/5G polymorphism may be a prognostic marker for young and middle-aged Chinese breast cancer patients.
PURPOSE:Plasminogen activator inhibitor-1 (PAI-1) plays an important role in cancer invasion and metastasis. A common polymorphism (4G/5G) in the promoter region of the PAI-1 gene has been reported to influence transcription and plasma levels of PAI-1. We evaluated the association between PAI-1 4G/5G polymorphism and breast cancer survival in a population-based cohort of breast cancerpatients. EXPERIMENTAL DESIGN: Included in this analysis were 1,083 Chinese women diagnosed with stage 0 to III primary breast cancer at age 25 to 64 years who were recruited between 1996 and 1998 for the Shanghai Breast Cancer Study and followed for a median of 5.2 years. The Kaplan-Meier method and Cox model were used to evaluate the genotype and survival association. RESULTS: After adjustment for known prognostic factors for breast cancer, patients homozygous for the 4G allele had significantly poorer disease-free survival [hazard ratio (HR), 1.7; 95% confidence interval (95% CI), 1.1-2.4] and overall survival (HR, 1.5; 95% CI, 1.0-2.3) than those homozygous for the 5G allele. The association was more evident in patients with advanced disease. The HRs (95% CI) were 3.5 (1.4-9.0) for disease-free survival and 3.1 (1.1-8.3) for overall survival in stage III patients. CONCLUSIONS: The PAI-1 4G/5G polymorphism may be a prognostic marker for young and middle-aged Chinese breast cancerpatients.
Authors: Manfred Schmitt; Karin Mengele; Apostolos Gkazepis; Rudolf Napieralski; Viktor Magdolen; Ute Reuning; Nadia Harbeck Journal: Breast Care (Basel) Date: 2008-10-15 Impact factor: 2.860
Authors: Chang Hyun Byon; Robert W Hardy; Changchun Ren; Selvarangan Ponnazhagan; Danny R Welch; Jay M McDonald; Yabing Chen Journal: Lab Invest Date: 2009-09-14 Impact factor: 5.662
Authors: Laura Fejerman; Donglei Hu; Scott Huntsman; Esther M John; Mariana C Stern; Christopher A Haiman; Eliseo J Pérez-Stable; Elad Ziv Journal: Cancer Res Date: 2013-10-31 Impact factor: 13.312