REACTIVE OXYGEN SPECIES AND COLORECTAL CANCER. Academic Article uri icon

abstract

  • Several agents used for treatment of colon and other cancers induce reactive oxygen species (ROS) and this plays an important role in their anticancer activities. In addition to the well-known proapoptotic effects of ROS inducers, these compounds also decrease expression of specificity protein (Sp) transcription factors Sp1, Sp3 and Sp4 and several pro-oncogenic Spregulated genes important for cancer cell proliferation, survival and metastasis. The mechanism of these responses involve ROS-dependent downregulation of microRNA-27a (miR-27a) or miR-20a (and paralogs) and induction of two Sp-repressors, ZBTB10 and ZBTB4 respectively. This pathway significantly contributes to the anticancer activity of ROS inducers and should be considered in development of drug combinations for cancer chemotherapy.

published proceedings

  • Curr Colorectal Cancer Rep

altmetric score

  • 0.75

author list (cited authors)

  • Sreevalsan, S., & Safe, S.

citation count

  • 80

complete list of authors

  • Sreevalsan, Sandeep||Safe, Stephen

publication date

  • December 2013