{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,20]],"date-time":"2026-07-20T14:18:19Z","timestamp":1784557099128,"version":"3.55.0"},"reference-count":36,"publisher":"Bioscientifica","issue":"2","content-domain":{"domain":["jme.bioscientifica.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2014,4]]},"abstract":"<jats:p>\n                    Purkinje cell protein 4 (PCP4) is a calmodulin (CaM)-binding protein that accelerates calcium association and dissociation with CaM. It has been previously detected in aldosterone-producing adenomas (APA), but details on its expression and function in adrenocortical tissues have remained unknown. Therefore, we performed the immunohistochemical analysis of PCP4 in the following tissues: normal adrenal (NA;\n                    <jats:italic>n<\/jats:italic>\n                    =15), APA (\n                    <jats:italic>n<\/jats:italic>\n                    =15), cortisol-producing adenomas (\n                    <jats:italic>n<\/jats:italic>\n                    =15), and idiopathic hyperaldosteronism cases (IHA;\n                    <jats:italic>n<\/jats:italic>\n                    =5). APA samples (\n                    <jats:italic>n<\/jats:italic>\n                    =45) were also submitted to quantitative RT-PCR of PCP4, CYP11B1, and CYP11B2, as well as DNA sequencing for\n                    <jats:italic>KCNJ5<\/jats:italic>\n                    mutations. Transient transfection analysis using PCP4 siRNA was also performed in H295R adrenocortical carcinoma cells, following ELISA analysis, and CYP11B2 luciferase assays were also performed after PCP4 vector transfection in order to study the regulation of PCP4 protein expression. In our findings, PCP4 immunoreactivity was predominantly detected in APA and in the zona glomerulosa of NA and IHA. In APA, the mRNA levels of\n                    <jats:italic>PCP4<\/jats:italic>\n                    were significantly correlated with those of CYP11B2 (\n                    <jats:italic>P<\/jats:italic>\n                    &lt;0.0001) and were significantly higher in cases with\n                    <jats:italic>KCNJ5<\/jats:italic>\n                    mutation than WT (\n                    <jats:italic>P<\/jats:italic>\n                    =0.005). Following PCP4 vector transfection, CYP11B2 luciferase reporter activity was significantly higher than controls in the presence of angiotensin-II. Knockdown of PCP4 resulted in a significant decrease in\n                    <jats:italic>CYP11B2<\/jats:italic>\n                    mRNA levels (\n                    <jats:italic>P<\/jats:italic>\n                    =0.012) and aldosterone production (\n                    <jats:italic>P<\/jats:italic>\n                    =0.011). Our results indicate that PCP4 is a regulator of aldosterone production in normal, hyperplastic, and neoplastic human adrenocortical cells.\n                  <\/jats:p>","DOI":"10.1530\/jme-13-0248","type":"journal-article","created":{"date-parts":[[2014,1,9]],"date-time":"2014-01-09T00:54:51Z","timestamp":1389228891000},"page":"159-167","update-policy":"https:\/\/doi.org\/10.1530\/crossmarkpolicy-1","source":"Crossref","is-referenced-by-count":29,"title":["PCP4: a regulator of aldosterone synthesis in human adrenocortical tissues"],"prefix":"10.1530","volume":"52","author":[{"given":"Saulo J A","family":"Felizola","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuhiro","family":"Nakamura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshikiyo","family":"Ono","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kanako","family":"Kitamura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kumi","family":"Kikuchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiaki","family":"Onodera","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazue","family":"Ise","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kei","family":"Takase","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akira","family":"Sugawara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Namita","family":"Hattangady","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William E","family":"Rainey","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fumitoshi","family":"Satoh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hironobu","family":"Sasano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"416","reference":[{"issue":"1-2","key":"1_16076768","doi-asserted-by":"publisher","first-page":"169","DOI":"10.3109\/07435809509030432","volume":"21","author":"Bird","year":"1995","journal-title":"Endocrine research","ISSN":"https:\/\/id.crossref.org\/issn\/0743-5800","issn-type":"print"},{"issue":"6018","key":"2_39182913","doi-asserted-by":"publisher","first-page":"768","DOI":"10.1126\/science.1198785","volume":"331","author":"Choi","year":"2011","journal-title":"Science","ISSN":"https:\/\/id.crossref.org\/issn\/0036-8075","issn-type":"print"},{"issue":"9","key":"3_17207063","doi-asserted-by":"publisher","first-page":"3651","DOI":"10.1210\/en.2001-211359","volume":"143","author":"Condon","year":"2002","journal-title":"Endocrinology","ISSN":"https:\/\/id.crossref.org\/issn\/0013-7227","issn-type":"print"},{"issue":"6672","key":"4_5932547","doi-asserted-by":"publisher","first-page":"198","DOI":"10.1038\/32448","volume":"392","author":"Deisseroth","year":"1998","journal-title":"Nature; 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