1
|
Serapiglia V, Stephens CA, Joshi R, Aydin E, Oria M, Marotta M, Peiro JL, Varisco BM. Fetal Tracheal Occlusion Increases Lung Basal Cells via Increased Yap Signaling. Front Pediatr 2021; 9:780166. [PMID: 35280447 PMCID: PMC8904268 DOI: 10.3389/fped.2021.780166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 12/15/2021] [Indexed: 12/03/2022] Open
Abstract
Fetal endoscopic tracheal occlusion (FETO) is an emerging surgical therapy for congenital diaphragmatic hernia (CDH). Ovine and rabbit data suggested altered lung epithelial cell populations after tracheal occlusion (TO) with transcriptomic signatures implicating basal cells. To test this hypothesis, we deconvolved mRNA sequencing (mRNA-seq) data and used quantitative image analysis in fetal rabbit lung TO, which had increased basal cells and reduced ciliated cells after TO. In a fetal mouse TO model, flow cytometry showed increased basal cells, and immunohistochemistry demonstrated basal cell extension to subpleural airways. Nuclear Yap, a known regulator of basal cell fate, was increased in TO lung, and Yap ablation on the lung epithelium abrogated TO-mediated basal cell expansion. mRNA-seq of TO lung showed increased activity of downstream Yap genes. Human lung specimens with congenital and fetal tracheal occlusion had clusters of subpleural basal cells that were not present in the control. TO increases lung epithelial cell nuclear Yap, leading to basal cell expansion.
Collapse
Affiliation(s)
- Vincent Serapiglia
- School of Medicine, Northeast Ohio College of Medicine, Northeast Ohio Medical University, Rootstown Township, OH, United States
| | - Chad A Stephens
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, United States
| | - Rashika Joshi
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States
| | - Emrah Aydin
- Department of Pediatric Surgery, Tekirdag Namik Kemal University School of Medicine, Tekirdag, Turkey.,Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States
| | - Marc Oria
- Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Mario Marotta
- Bioengineering, Cell Therapy and Surgery in Congenital Malformations Laboratory, Vall d'Hebron Hospital Research Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jose L Peiro
- Center for Fetal and Placental Research, Cincinnati Children's Hospital Medical Center (CCHMC), Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Brian M Varisco
- Division of Critical Care Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.,Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| |
Collapse
|