Published online May 10, 2012. doi: 10.5306/wjco.v3.i5.80
Revised: April 19, 2012
Accepted: April 24, 2012
Published online: May 10, 2012
I read with great interest the recent article by Liu and Wang in a recent issue of your esteemed journal. The article is highly thought provoking. Interestingly, the past few years have seen a number of studies that have established a close relationship between survivin expression and tumor prognosis in systemic malignancies besides pancreatic carcinomas. For instance, a poor prognosis is seen in patients with bladder carcinomas which exhibit survivin over expression. A higher recurrence rate is seen following radio-chemotherapy in bladder carcinomas which exhibit increased survivin expression. Similarly, up regulation of survivin expression is seen in non-small cell lung cancers. In fact, Yamashita et al have shown that when used in combination with p53AIP1, survivin is a powerful prognostic indicator in non-small cell lung carcinomas. Similarly in breast carcinomas, increased survivin expression is more commonly seen in estrogen receptor negative carcinomas and is associated with a poor overall prognosis.