Noteworthy, the same OCT4 antibody herein used has been proven to successfully detect OCT4 expression in sarcoma samples by immunohistochemistry, and although OCT4 expression was strongly correlated with SOX2 expression, unlike the former, the latter was the most prevalent, and was the only one found to be clinically relevant in these tumors [52]. The gene discussed is POU5F1; the disease is sarcoma.