Laminin β3 expression as a prognostic factor and a predictive marker of chemoresistance in colorectal cancer

Japanese Journal of Clinical Oncology
Satomi FukazawaKazuo Hase

Abstract

Laminin-332, a marker of epithelial-mesenchymal transition, is composed of a heterotrimer of α3, β3 and γ2 chains that regulates cell adhesion and migration. This study aimed to disclose the respective clinical significance of laminin β3 immunoexpression in colorectal cancer as a prognostic factor and a predictive marker of chemoresistance. Tissue specimens from 323 Stage II and 232 Stage III colorectal cancer patients who underwent curative resection were assessed using laminin β3 immunostaining. Among Stage III colorectal cancer patients, comparisons of 5-year disease-free survival rates revealed a poorer prognosis for the laminin β3-high group than for the laminin β3-low group (52.3 vs. 70.7%, P = 0.038), while there was no significant difference among Stage II patients. Among laminin β3-low Stage III patients, those who received adjuvant chemotherapy showed marginally better disease-free survival than those who did not receive it (75.8 vs. 62.8%; P = 0.096). Furthermore, multivariate analysis corroborated a distinct benefit of adjuvant chemotherapy in laminin β3-low patients (P = 0.035; hazard risk ratio = 1.66). Analyses of the laminin β3-high group, however, failed to show significance. Laminin β3 chain immunoreactivity w...Continue Reading

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Citations

Sep 12, 2015·Biochemical and Biophysical Research Communications·Xiaohua ZhongXinbin Liu
Apr 17, 2020·Bioscience Trends·Patricia L Martínez-MoralesVerónica Vallejo-Ruiz
Jan 4, 2019·Virchows Archiv : an International Journal of Pathology·Takehiro ShiraishiHideki Ueno

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