Breast cancer consists of a heterogeneous group of tumors with different features, biology and treatments. Cancer stem cells (CSCs) have been associated with an aggressive cellular behavior, resistance to chemotherapy and radiotherapy in many types of neoplasms, and a strong correlation between prominin-1 (CD133) expression in cancer stem cells from different types of cancer exist. A discussion is presented on recent immunotherapeutic strategies that target CD133 in breast CSCs. Furthermore, it is suggested that immunotherapy targeting CD133 breast CSCs and/or in combination with other current treatments result in a better outcome. © 2016 Sociedad Mexicana de Oncología.

Introduction Safety in Transfusion Medicine is subject to regulations and government legislation within a total quality framework. The aim of this study was to evaluate the impact of seroprevalence and indeterminate results on lost units and cost per donation. Methods A prospective cross-sectional study was performed in the Blood Bank and Transfusion Therapy Department of the Hospital Central de la Policia Nacional del Perú in Lima, Peru. All completed donations (replacement/voluntary) without complications were included in this study. Every donation met the institutional requirements and quality criteria of Programa Nacional de Hemoterapia y Bancos de Sangre (PRONAHEBAS). Data analysis was achieved using the Statistical Package for the Social Sciences. Results A total of 7723 donations were evaluated during 2014 and 2015 with 493 being seropositive (overall prevalence 5.25%) and 502 ha...