{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T13:05:26Z","timestamp":1793106326890,"version":"4.5.0"},"reference-count":48,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T00:00:00Z","timestamp":1691971200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Experimental Dermatology"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>T\u2010LAK cell\u2010oriented protein kinase (TOPK) potently promotes malignant proliferation of tumour cells and is considered as a maker of tumour progression. Psoriasis is a common inflammatory skin disease characterized by abnormal proliferation of keratinocytes. However, the role of TOPK in psoriasis has not been well elucidated. This study aims to investigate the expression and role of TOPK in psoriasis, and the role of TOPK inhibitor in psoriasis attenuation. Gene Expression Omnibus datasets derived from psoriasis patients and psoriatic model mice were screened for analysis. Skin specimens from psoriasis patients were collected for TOPK immunohistochemical staining to investigate the expression and localization of TOPK. Next, psoriatic mice model was established to further confirm TOPK expression pattern. Then, TOPK inhibitor was applied to investigate the role of TOPK in psoriasis progression. Finally, cell proliferation assay, apoptosis assay and cell cycle analysis were performed to investigate the potential mechanism involved. Our study showed that TOPK was upregulated in the lesions of both psoriasis patients and psoriatic model mice, and TOPK levels were positively associated with psoriasis progression. TOPK was upregulated in psoriatic lesions and expressed predominantly by epidermal keratinocytes. In addition, TOPK levels in epidermal keratinocytes were positively correlated with epidermal hyperplasia. Furthermore, topical application of TOPK inhibitor OTS514 obviously alleviated disease severity and epidermal hyperplasia. Mechanismly, inhibiting TOPK induces G2\/M phase arrest and apoptosis of keratinocytes, thereby attenuating epidermal hyperplasia and disease progression. Collectively, this study identifies that upregulation of TOPK in keratinocytes promotes psoriatic progression, and inhibiting TOPK attenuates epidermal hyperplasia and psoriatic progression.<\/jats:p>","DOI":"10.1111\/exd.14909","type":"journal-article","created":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T07:18:32Z","timestamp":1691997512000},"page":"1823-1833","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Topical application of\n                    <scp>TOPK<\/scp>\n                    inhibitor\n                    <scp>OTS514<\/scp>\n                    suppresses psoriatic progression by inducing keratinocytes cell cycle arrest and apoptosis"],"prefix":"10.1111","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4731-7641","authenticated-orcid":false,"given":"Fanfan","family":"Zeng","sequence":"first","affiliation":[{"name":"Department of Clinical Laboratory, Union Hospital, Tongji 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