{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T11:09:00Z","timestamp":1790680140015,"version":"4.1.0"},"reference-count":52,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2021,8,20]],"date-time":"2021-08-20T00:00:00Z","timestamp":1629417600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100014188","name":"Ministry of Science and ICT, South Korea","doi-asserted-by":"publisher","award":["2020M3A9I2107885"],"award-info":[{"award-number":["2020M3A9I2107885"]}],"id":[{"id":"10.13039\/501100014188","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Viruses"],"abstract":"<jats:p>Patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019, suffer from respiratory and non-respiratory symptoms. Among these symptoms, the loss of smell has attracted considerable attention. The objectives of this study were to determine which cells are infected, what happens in the olfactory system after viral infection, and how these pathologic changes contribute to olfactory loss. For this purpose, Syrian golden hamsters were used. First, we verified the olfactory structures in the nasal cavity of Syrian golden hamsters, namely the main olfactory epithelium, the vomeronasal organ, and their cellular components. Second, we found angiotensin-converting enzyme 2 expression, a receptor protein of SARS-CoV-2, in both structures and infections of supporting, microvillar, and solitary chemosensory cells. Third, we observed pathological changes in the infected epithelium, including reduced thickness of the mucus layer, detached epithelia, indistinct layers of epithelia, infiltration of inflammatory cells, and apoptotic cells in the overall layers. We concluded that a structurally and functionally altered microenvironment influences olfactory function. We observed the regeneration of the damaged epithelium, and found multilayers of basal cells, indicating that they were activated and proliferating to reconstitute the injured epithelium.<\/jats:p>","DOI":"10.3390\/v13081653","type":"journal-article","created":{"date-parts":[[2021,8,22]],"date-time":"2021-08-22T23:00:09Z","timestamp":1629673209000},"page":"1653","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["The Microvillar and Solitary Chemosensory Cells as the Novel Targets of Infection of SARS-CoV-2 in Syrian Golden Hamsters"],"prefix":"10.3390","volume":"13","author":[{"given":"Jin-Seok","family":"Seo","sequence":"first","affiliation":[{"name":"Department of Anatomy, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sun-Woo","family":"Yoon","sequence":"additional","affiliation":[{"name":"Department of Anatomy, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seung-Hyeon","family":"Hwang","sequence":"additional","affiliation":[{"name":"Department of Anatomy, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sung-Min","family":"Nam","sequence":"additional","affiliation":[{"name":"Jesaeng-Euise Clinical Anatomy Center, Department of Anatomy, School of Medicine, Wonkwang University, Iksan 54538, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang-Soep","family":"Nahm","sequence":"additional","affiliation":[{"name":"Department of Anatomy, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"},{"name":"Veterinary Science Research Institute, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jei-Hyun","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiho","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Avian Diseases Laboratory, College of Veterinary Medicine, Konkuk University, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ha-Na","family":"Youn","sequence":"additional","affiliation":[{"name":"KCAV Co., Ltd., Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun-Beom","family":"Kim","sequence":"additional","affiliation":[{"name":"KCAV Co., Ltd., Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4752-2810","authenticated-orcid":false,"given":"Woosuk","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Anatomy, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"},{"name":"Veterinary Science Research Institute, College of Veterinary Medicine, Konkuk Unitversity, Seoul 05030, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,8,20]]},"reference":[{"key":"ref_1","unstructured":"(2021, February 22). 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