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Cárdenes N, Sembrat J, Noda K, Lovelace T, Álvarez D, Bittar HET, Philips BJ, Nouraie M, Benos PV, Sánchez PG, Rojas M. Human ex vivo lung perfusion: a novel model to study human lung diseases. Sci Rep 2021; 11:490. [PMID: 33436736 PMCID: PMC7804395 DOI: 10.1038/s41598-020-79434-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022] Open
Abstract
Experimental animal models to predict physiological responses to injury and stress in humans have inherent limitations. Therefore, the development of preclinical human models is of paramount importance. Ex vivo lung perfusion (EVLP) has typically been used to recondition donor lungs before transplantation. However, this technique has recently advanced into a model to emulate lung mechanics and physiology during injury. In the present study, we propose that the EVLP of diseased human lungs is a well-suited preclinical model for translational research on chronic lung diseases. Throughout this paper, we demonstrate this technique's feasibility in pulmonary arterial hypertension (PAH), idiopathic pulmonary fibrosis (IPF), emphysema, and non-disease donor lungs not suitable for transplantation. In this study, we aimed to perfuse the lungs for 6 h with the EVLP system. This facilitated a robust and continuous assessment of airway mechanics, pulmonary hemodynamics, gas exchange, and biochemical parameters. We then collected at different time points tissue biopsies of lung parenchyma to isolate RNA and DNA to identify each disease's unique gene expression. Thus, demonstrating that EVLP could successfully serve as a clinically relevant experimental model to derive essential insights into pulmonary pathophysiology and various human lung diseases.
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Affiliation(s)
- Nayra Cárdenes
- Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh School of Medicine, W1244 BST Tower, 200 Lothrop Street, Pittsburgh, PA, 15261, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - John Sembrat
- Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh School of Medicine, W1244 BST Tower, 200 Lothrop Street, Pittsburgh, PA, 15261, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kentaro Noda
- Division of Lung Transplant and Lung Failure, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Tyler Lovelace
- Department of Computational Biology, University of Pittsburgh, Pittsburgh, PA, USA.,Joint CMU-Pitt Ph.D. Program in Computational Biology, Pittsburgh, PA, USA
| | - Diana Álvarez
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Humberto E Trejo Bittar
- Department of Pathology, Thoracic and Autopsy Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Brian J Philips
- Division of Lung Transplant and Lung Failure, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Mehdi Nouraie
- Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh School of Medicine, W1244 BST Tower, 200 Lothrop Street, Pittsburgh, PA, 15261, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Panayiotis V Benos
- Department of Computational Biology, University of Pittsburgh, Pittsburgh, PA, USA.,Joint CMU-Pitt Ph.D. Program in Computational Biology, Pittsburgh, PA, USA
| | - Pablo G Sánchez
- Division of Lung Transplant and Lung Failure, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Mauricio Rojas
- Dorothy P. and Richard P. Simmons Center for Interstitial Lung Disease, University of Pittsburgh School of Medicine, W1244 BST Tower, 200 Lothrop Street, Pittsburgh, PA, 15261, USA. .,Division of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. .,Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA.
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Maarman GJ, Reiter RJ. Melatonin therapy for blunt trauma and strenuous exercise: A mechanism involving cytokines, NFκB, Akt, MAFBXand MURF-1. J Sports Sci 2018; 36:1897-1901. [DOI: 10.1080/02640414.2018.1424491] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Gerald J. Maarman
- Hatter Institute for Cardiovascular Disease in Africa (HICRA), Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Russel J. Reiter
- Department of Cellular and Structural Biology, UT Health San Antonio, San Antonio, TX, USA
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