Dosing Limitation for Intra-Renal Arterial Infusion of Mesenchymal Stromal Cells

Autor: Anders Munk, Christina Søndergaard Duvald, Michael Pedersen, Stine Lohmann, Anna Krarup Keller, Bjarne Kuno Møller, Steffen Ringgaard, Niels Henrik Buus, Bente Jespersen, Marco Eijken
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: International Journal of Molecular Sciences; Volume 23; Issue 15; Pages: 8268
Munk, A, Duvald, C S, Pedersen, M, Lohmann, S, Keller, A K, Møller, B K, Ringgaard, S, Buus, N H, Jespersen, B & Eijken, M 2022, ' Dosing Limitation for Intra-Renal Arterial Infusion of Mesenchymal Stromal Cells ', International Journal of Molecular Sciences, vol. 23, no. 15, 8268 . https://doi.org/10.3390/ijms23158268
ISSN: 1422-0067
DOI: 10.3390/ijms23158268
Popis: The immunomodulatory and regenerative properties of mesenchymal stromal cells (MSCs) make MSC therapy a promising therapeutic strategy in kidney disease. A targeted MSC administration via the renal artery offers an efficient delivery method with limited spillover to other organs. Although local administration alleviates safety issues with MSCs in systemic circulation, it introduces new safety concerns in the kidneys. In a porcine model, we employed intra-renal arterial infusion of ten million allogenic adipose tissue-derived MSCs. In order to trigger any potential adverse events, a higher dose (hundred million MSCs) was also included. The kidney function was studied by magnetic resonance imaging after the MSC infusion and again at two weeks post-treatment. The kidneys were assessed by single kidney glomerular filtration rate (skGFR) measurements, histology and inflammation, and fibrosis-related gene expression. None of the measured parameters were affected immediately after the administration of ten million MSCs, but the administration of one hundred million MSCs induced severe adverse events. Renal perfusion was reduced immediately after MSC administration which coincided with the presence of microthrombi in the glomeruli and signs of an instant blood-mediated inflammatory reaction. At two weeks post-treatment, the kidneys that were treated with one hundred million MSCs showed reduced skGFR, signs of tissue inflammation, and glomerular and tubular damage. In conclusions, the intra-renal administration of ten million MSCs is well-tolerated by the porcine kidney. However, higher concentrations (one hundred million MSCs) caused severe kidney damage, implying that very high doses of intra-renally administered MSCs should be undertaken with caution.
Databáze: OpenAIRE