YBX1 and prostate intraepithelial neoplasia: In PIN cases, a significant positive correlation was noted between GOLPH3/nuclear YB-1 expression (r = 0.922, P < 0.001) and between nuclear/cytoplasmic YB-1 expression (r = 0.559, P = 0.016) while no significant correlation was noted between GOLPH3/cytoplasmic YB-1 expression (r = 0.399, P = 0.101).