Figure 4From: Periostin identified as a potential biomarker of prostate cancer by iTRAQ-proteomics analysis of prostate biopsy The transcription regulation network of SP1. The top 1 transcription regu-lation network initiated through activation of SP1 was shown. SP1 was involved in the regulation of 18 differentially expressed proteins. The up-regulated proteins were indic-ated in red circles and blue circles were used to indicate the down-regulated proteins.Back to article page