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Wu G, Lee YY, Gulla EM, Potter A, Kitzmiller J, Ruben MD, Salomonis N, Whitsett JA, Francey LJ, Hogenesch JB, Smith DF. Short-term exposure to intermittent hypoxia leads to changes in gene expression seen in chronic pulmonary disease. eLife 2021; 10:63003. [PMID: 33599610 PMCID: PMC7909952 DOI: 10.7554/elife.63003] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/17/2021] [Indexed: 12/16/2022] Open
Abstract
Obstructive sleep apnea (OSA) results from episodes of airway collapse and intermittent hypoxia (IH) and is associated with a host of health complications. Although the lung is the first organ to sense changes in oxygen levels, little is known about the consequences of IH to the lung hypoxia-inducible factor-responsive pathways. We hypothesized that exposure to IH would lead to cell-specific up- and downregulation of diverse expression pathways. We identified changes in circadian and immune pathways in lungs from mice exposed to IH. Among all cell types, endothelial cells showed the most prominent transcriptional changes. Upregulated genes in myofibroblast cells were enriched for genes associated with pulmonary hypertension and included targets of several drugs currently used to treat chronic pulmonary diseases. A better understanding of the pathophysiologic mechanisms underlying diseases associated with OSA could improve our therapeutic approaches, directing therapies to the most relevant cells and molecular pathways.
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Affiliation(s)
- Gang Wu
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Yin Yeng Lee
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, United States
| | - Evelyn M Gulla
- Division of Pediatric Otolaryngology - Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Andrew Potter
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Joseph Kitzmiller
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Marc D Ruben
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Nathan Salomonis
- Department of Pharmacology and Systems Physiology, University of Cincinnati College of Medicine, Cincinnati, United States.,Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Jeffery A Whitsett
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - Lauren J Francey
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - John B Hogenesch
- Divisions of Human Genetics and Immunobiology, Center for Circadian Medicine, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, United States
| | - David F Smith
- Division of Pediatric Otolaryngology - Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Division of Pulmonary Medicine and the Sleep Center, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,The Center for Circadian Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, United States.,Department of Otolaryngology-Head and Neck Surgery, University of Cincinnati College of Medicine, Cincinnati, United States
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