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Literature has identified differentially expressed miRNAs in congenital pulmonary airway malformation (CPAM). However, the functional role of these miRNAs in CPAM remains unclear. Methods. We obtained diseased lung tissues as well as adjacent normal lung tissue from CPAM patients attending the centre. Hematoxylin and eosin (H&amp;E) and Alcian blue staining were performed. Differentially expressed mRNA expression profile was CPAM tissue, and matched normal tissue specimens were examined by high-throughput RNA sequencing. CCK-8 assay, EdU staining, TUNEL staining, flow cytometry, and the Transwell assay were performed to investigate the effect of miR-548au-3p\/CA12 axis on proliferation, apoptosis, and chondrogenic differentiation in rat tracheal chondrocytes. mRNA and protein expression levels were determined using reverse transcription-quantitative PCR and western blot analysis, respectively. The relationship between miR-548au-3p and CA12 was evaluated using the luciferase reporter assay. Results. The expression level of miR-548au-3p was significantly increased in diseased tissues compared with normal adjacent tissues from patients with CPAM. Our results indicate that miR-548au-3p functions as a positive regulator in rat tracheal chondrocyte proliferation and chondrogenic differentiation. At molecular level, miR-548au-3p promoted N-cadherin, MMP13, and ADAMTS4 expressions and reduced E-cadherin, aggrecan, and Col2A1 expressions. CA12 has been previously reported as a predicted target of miR-548au-3p, and here, we show that overexpression of CA12 in rat tracheal chondrocyte mimics the effects of inhibition of miR-548au-3p. On the other hand, CA12 knockdown reversed the effects of miR-548au-3p on cell proliferation, apoptosis, and chondrogenic differentiation. Conclusions. In conclusion, the miR-548au-3p\/CA12 axis plays a role in the pathogenesis of CPAM and may lead to identification of new approaches for CPAM treatment.<\/jats:p>","DOI":"10.1155\/2023\/6428579","type":"journal-article","created":{"date-parts":[[2023,2,17]],"date-time":"2023-02-17T22:35:08Z","timestamp":1676673308000},"page":"1-13","source":"Crossref","is-referenced-by-count":2,"title":["The Role of the miR-548au-3p\/CA12 Axis in Tracheal Chondrogenesis in Congenital Pulmonary Airway Malformations"],"prefix":"10.1155","volume":"2023","author":[{"given":"Jiahang","family":"Zeng","sequence":"first","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinwen","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinglin","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junzheng","family":"Peng","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fenghua","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jue","family":"Tang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingyi","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Anaesthesiology, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongmei","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6162-3717","authenticated-orcid":true,"given":"Jianhua","family":"Liang","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3665-1193","authenticated-orcid":true,"given":"Le","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Thoracic Surgery, Guangzhou Women and Children\u2019s Medical Center, Guangzhou Medical University, Guangzhou 510623, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","reference":[{"issue":"3","key":"1","first-page":"221","article-title":"Congenital adenomatoid malformation of one lobe of a lung with general anasarca","volume":"48","author":"K. 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