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Human adult bone marrow-derived stem cells decrease severity of lipopolysaccharide-induced acute respiratory distress syndrome in sheep

Rojas, M and Cárdenes, N and Kocyildirim, E and Tedrow, JR and Cáceres, E and Deans, R and Ting, A and Bermúdez, C (2014) Human adult bone marrow-derived stem cells decrease severity of lipopolysaccharide-induced acute respiratory distress syndrome in sheep. Stem Cell Research and Therapy, 5 (2).

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Abstract

Introduction. Acute respiratory distress syndrome (ARDS) is the most common cause of respiratory failure among critically ill subjects, sepsis and severe bacterial pneumonia being its most common causes. The only interventions that have proven beneficial are protective ventilation strategies and fluid conservation approaches. New therapies are needed to address this common clinical problem. Others and we have previously shown the beneficial effect of infusion of exogenous adult stem cells in different pre-clinical models of ARDS. Methods. In the present study endotoxin was infused intravenously into 14 sheep from which 6 received different doses of adult stem cells by intrabronchial delivery to evaluate the effect of stem cell therapy. Results: After administration of endotoxin, there was a rapid decline in oxygenation to hypoxemic values, indicative of severe-to-moderate ARDS. None of the animals treated with saline solution recovered to normal baseline values during the 6 hours that the animals were followed. In contrast, sheep treated with a dose of 40 million adult stem cells returned their levels of oxygen in their blood to baseline two hours after the cells were infused. Similarly, improvements in carbon dioxide (CO2) clearance, pulmonary vascular pressures and inflammation were observed and confirmed by histology and by the decrease in lung edema. Conclusions: We concluded that instillation of adult non-hematopoietic stem cells can diminish the impact of endotoxin and accelerate recovery of oxygenation, CO2 removal and inflammation in the ovine model, making the use of adult stem cells a real alternative for future therapies for ARDS. © 2014 Rojas et al.; licensee BioMed Central Ltd.


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Details

Item Type: Article
Status: Published
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Rojas, Mmar176@pitt.eduMAR176
Cárdenes, N
Kocyildirim, Eerk30@pitt.eduERK30
Tedrow, JRjrt45@pitt.eduJRT45
Cáceres, E
Deans, R
Ting, A
Bermúdez, C
Centers: Other Centers, Institutes, or Units > McGowan Institute for Regenerative Medicine
Date: 26 March 2014
Date Type: Publication
Journal or Publication Title: Stem Cell Research and Therapy
Volume: 5
Number: 2
DOI or Unique Handle: 10.1186/scrt430
Schools and Programs: School of Medicine > Cardiothoracic Surgery
School of Medicine > Critical Care Medicine
Refereed: Yes
Date Deposited: 02 Dec 2016 20:38
Last Modified: 02 Feb 2019 13:58
URI: http://d-scholarship.pitt.edu/id/eprint/29583

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