Mesenchymal Stromal Cell Delivery Via Cardiopulmonary Bypass Provides Neuroprotection in a Juvenile Porcine Model
Overview
Authors
Affiliations
Oxidative/inflammatory stresses due to cardiopulmonary bypass (CPB) cause prolonged microglia activation and cortical dysmaturation, thereby contributing to neurodevelopmental impairments in children with congenital heart disease (CHD). This study found that delivery of mesenchymal stromal cells (MSCs) via CPB minimizes microglial activation and neuronal apoptosis, with subsequent improvement of cortical dysmaturation and behavioral alteration after neonatal cardiac surgery. Furthermore, transcriptomic analyses suggest that exosome-derived miRNAs may be the key drivers of suppressed apoptosis and STAT3-mediated microglial activation. Our findings demonstrate that MSC treatment during cardiac surgery has significant translational potential for improving cortical dysmaturation and neurological impairment in children with CHD.
The role of microglia in Neuroinflammation associated with cardiopulmonary bypass.
Meng L, Gu T, Yu P, Zhang Z, Wei Z Front Cell Neurosci. 2025; 18:1496520.
PMID: 39742156 PMC: 11685197. DOI: 10.3389/fncel.2024.1496520.
Kobayashi K, Kobayashi K, Liu C, Ryan J, Zurakowski D, Ishibashi N Pediatr Cardiol. 2024; .
PMID: 38918239 PMC: 11668907. DOI: 10.1007/s00246-024-03550-5.
Can Mesenchymal Stem Cell-Derived Therapeutics Protect the Developing Brain During Cardiac Surgery?.
Hansmann G JACC Basic Transl Sci. 2024; 8(12):1536-1538.
PMID: 38205354 PMC: 10774766. DOI: 10.1016/j.jacbts.2023.08.012.