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GSS and some familial CJD [V180I] exhibit characteristic prion protein (PrP) plaques. Overexpression of the astrocytic water channel proteins aquaporin (AQP) 1 and AQP4 was recently reported in sporadic CJD. To clarify the pathological characteristics of AQP1 and AQP4 in prion disease patient brains with plaque-type deposition, we investigated 5 patients with GSS, 2 patients with CJD [V180I], and 2 age-matched control cases without neurological diseases using immunohistochemistry and double immunofluorescence methods. We demonstrated that there is the intense expression of AQP1 and AQP4 around prion plaques, especially in distal astrocytic processes deep inside these plaques. Similar results have been reported in the senile plaques and ghost tangles of Alzheimer disease brains and a protective role of AQP4 in which AQP4 is redistributed toward the plaques and works as a barrier against the deleterious effects of these plaques has been suggested. Our results, which show a similar clustering of AQPs around PrP plaques, therefore support the possibility that AQPs also have a protective role in plaque formation in prion diseases.<\/jats:p>","DOI":"10.1093\/jnen\/nlaa010","type":"journal-article","created":{"date-parts":[[2020,3,13]],"date-time":"2020-03-13T14:17:34Z","timestamp":1584109054000},"page":"419-429","source":"Crossref","is-referenced-by-count":14,"title":["Accumulation of Astrocytic Aquaporin 4 and Aquaporin 1 in Prion Protein Plaques"],"prefix":"10.1093","volume":"79","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4086-7373","authenticated-orcid":false,"given":"Shoko","family":"Sadashima","sequence":"first","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"},{"name":"Department of Neurology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4225-7248","authenticated-orcid":false,"given":"Hiroyuki","family":"Honda","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0742-5680","authenticated-orcid":false,"given":"Satoshi O","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6851-2860","authenticated-orcid":false,"given":"Masahiro","family":"Shijo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shinichi","family":"Aishima","sequence":"additional","affiliation":[{"name":"Department of Pathology, Saga University Hospital , Saga, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1553-2598","authenticated-orcid":false,"given":"Keita","family":"Kai","sequence":"additional","affiliation":[{"name":"Department of Pathology, Saga University Hospital , Saga, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5307-2671","authenticated-orcid":false,"given":"Junichi","family":"Kira","sequence":"additional","affiliation":[{"name":"Department of Neurology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7826-870X","authenticated-orcid":false,"given":"Toru","family":"Iwaki","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medical Sciences, Kyushu University , Fukuoka, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2020,3,13]]},"reference":[{"key":"2024032523313843400_nlaa010-B1","doi-asserted-by":"crossref","first-page":"e114","DOI":"10.1016\/j.jns.2015.08.364","article-title":"Clinical and epidemiological survey of Gerstmann-Str\u00e4ussler-Scheinker disease with codon 102 mutation in Japan","volume":"357","author":"Murai","year":"2015","journal-title":"J Neurol Sci"},{"key":"2024032523313843400_nlaa010-B2","volume-title":"Prion Diseases. 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