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Najrana T, Ahsan N, Abu-Eid R, Uzun A, Noble L, Tollefson G, Sanchez-Esteban J. Proteomic analysis of a murine model of lung hypoplasia induced by oligohydramnios. Pediatr Pulmonol 2021; 56:2740-2750. [PMID: 34102042 PMCID: PMC8631439 DOI: 10.1002/ppul.25525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/09/2021] [Accepted: 05/23/2021] [Indexed: 02/02/2023]
Abstract
Severe oligohydramnios (OH) due to prolonged loss of amniotic fluid can cause pulmonary hypoplasia. Animal model of pulmonary hypoplasia induced by amniotic fluid drainage is partly attributed to changes in mechanical compression of the lung. Although numerous studies on OH-model have demonstrated changes in several individual proteins, however, the underlying mechanisms for interrupting normal lung development in response to a decrease of amniotic fluid volume are not fully understood. In this study, we used a proteomic approach to explore differences in the expression of a wide range of proteins after induction of OH in a mouse model of pulmonary hypoplasia to find out the signaling/molecular pathways involved in fetal lung development. Liquid chromatography-massspectromery/mass spectrometry analysis found 474 proteins that were differentially expressed in OH-induced hypoplastic lungs in comparison to untouched (UnT) control. Among these proteins, we confirmed the downregulation of AKT1, SP-D, and CD200, and provided proof-of-concept for the first time about the potential role that these proteins could play in fetal lung development.
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Affiliation(s)
- Tanbir Najrana
- Department of Pediatrics, Women and Infants Hospital/Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island, USA
| | - Nagib Ahsan
- COBRE Center for Cancer Research Development at Rhode Island Hospital, Proteomics Core Facility, Division of Surgical Research, Brown University, Providence, Rhode Island, USA.,Department of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma, USA.,Mass Spectrometry, Proteomics and Metabolomic Core Facility, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, Oklahoma, USA
| | - Rasha Abu-Eid
- Institute of Dentistry, School of Medicine, Medical Sciences & Nutrition, University of Aberdeen, Foresterhill, UK
| | - Alper Uzun
- Department of Pediatrics, Women and Infants Hospital/Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA.,Center of Computational Molecular Biology, Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, USA
| | - Lelia Noble
- COBRE Center for Cancer Research Development at Rhode Island Hospital, Proteomics Core Facility, Division of Surgical Research, Brown University, Providence, Rhode Island, USA
| | - George Tollefson
- Department of Pediatrics, Women and Infants Hospital/Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Juan Sanchez-Esteban
- Department of Pediatrics, Women and Infants Hospital/Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Pulmonary Hypoplasia Induced by Oligohydramnios: Findings from Animal Models and a Population-Based Study. Pediatr Neonatol 2017; 58:3-7. [PMID: 27324123 DOI: 10.1016/j.pedneo.2016.04.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Revised: 11/26/2015] [Accepted: 04/21/2016] [Indexed: 10/21/2022] Open
Abstract
Pulmonary hypoplasia is a substantial cause of death in newborn infants, and oligohydramnios is one of the most commonly associated abnormalities. Lung growth is influenced by physical factors such as the intrauterine space, lung liquid volume and pressure, and fetal breathing movements. During lung development, the main physical force experienced by the lungs is stretching induced by breathing movements and the lung fluid in the airspaces. Oligohydramnios reduces the intrathoracic cavity size, thus disrupting fetal lung growth and leading to pulmonary hypoplasia. The exact mechanism by which oligohydramnios alters the respiratory system structure and the effect of oligohydramnios on long-term respiratory outcomes remain unknown. In this review, we summarize the effects of oligohydramnios on lung development, discuss the mechanisms of oligohydramnios-induced pulmonary hypoplasia identified in various animal studies, and describe the long-term respiratory outcomes in childhood of oligohydramnios-exposed fetuses reported by a population-based study.
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