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However, the biological function and regulatory mechanism of miR\u2010199a in keratinocytes of cholesteatoma are still unclear. <jats:italic>Methods<\/jats:italic>. Detection by qRT\u2010PCR was conducted on miR\u2010199a\u2019s expression in both thirty pairs of cholesteatoma tissues and normal skins. For characterizing the function of miR\u2010199a, this research adopted transwell assay, wound healing assay, and CCK8 assays. Under the support of qRT\u2010PCR, efforts were made to investigate the relative expression of candidate target genes. Moreover, the evaluation of the targeting relationship between miR\u2010199a and the candidate target gene was conducted with the dual\u2010luciferase reporter assay. <jats:italic>Results<\/jats:italic>. The upregulation of miR\u2010199a was found in cholesteatoma tissues, which facilitated the proliferation, migration, and invasion of HaCaT cells, while its downregulation caused opposite results. <jats:italic>Conclusions<\/jats:italic>. The findings of the present research offer more insights into the molecular mechanism of cholesteatoma progression.<\/jats:p>","DOI":"10.1155\/2021\/1442093","type":"journal-article","created":{"date-parts":[[2021,11,16]],"date-time":"2021-11-16T22:50:08Z","timestamp":1637103008000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["miR\u2010199a Targeting PNRC1 to Promote Keratinocyte Proliferation and Invasion in 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