Analysis of SYNPO2 expression in normal prostate and prostate cancer specimens by HPA using two different antibodies showed the expression of SYNPO2 protein only in smooth muscle cells, both in normal tissue and in more than 20 tumor specimens (https://www.proteinatlas.org/ENSG00000172403 SYNPO2/pathology/prostate+cancer#imid_19955532 (accessed on 22 September 2023)) [52,53]. Here, SYNPO2 is linked to Familial prostate cancer.