Intraarticular and intravenous administration of 99M Tc-HMPAO-labeled human mesenchymal stem cells ( 99M TC-AH-MSC S ): In vivo imaging and biodistribution

Therapeutic application of intravenous administered (IV) human bone marrow-derived mesenchymal stem cells (ahMSCs) appears to have as main drawback the massive retention of cells in the lung parenchyma, questioning the suitability of this via of administration. Intraarticular administration (IAR) co...

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Bibliographic Details
Published in:Nuclear medicine and biology 2017-03, Vol.46, p.36
Main Authors: Meseguer-Olmo, Luis, Montellano, Antonio Jesús, Martínez, Teresa, Martínez, Carlos M, Revilla-Nuin, Beatriz, Roldán, Marta, Mora, Cristina Fuente, López-Lucas, Maria Dolores, Fuente, Teodomiro
Format: Article
Language:English
Subjects:
Administration, Intravenous
Humans
Isotope Labeling
Male
Mesenchymal Stem Cells - metabolism
Molecular Imaging - methods
Technetium Tc 99m Exametazime - administration & dosage
Technetium Tc 99m Exametazime - metabolism
Technetium Tc 99m Exametazime - pharmacokinetics
Tissue Distribution
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Summary:Therapeutic application of intravenous administered (IV) human bone marrow-derived mesenchymal stem cells (ahMSCs) appears to have as main drawback the massive retention of cells in the lung parenchyma, questioning the suitability of this via of administration. Intraarticular administration (IAR) could be considered as an alternative route for therapy in degenerative and traumatic joint lesions. Our work is outlined as a comparative study of biodistribution of Tc-ahMSCs after IV and IAR administration, via scintigraphic study in an animal model. Isolated primary culture of adult human mesenchymal stem cells was labeled with Tc-HMPAO for scintigraphic study of in vivo distribution after intravenous and intra-articular (knee) administration in rabbits. IV administration of radiolabeled ahMSCs showed the bulk of radioactivity in the lung parenchyma while IAR images showed activity mainly in the injected cavity and complete absence of uptake in pulmonary bed. Our study shows that IAR administration overcomes the limitations of IV injection, in particular, those related to cells destruction in the lung parenchyma. After IAR administration, cells remain within the joint cavity, as expected given its size and adhesion properties. Intra-articular administration of adult human mesenchymal stem cells could be a suitable route for therapeutic effect in joint lesions. Local administration of adult human mesenchymal stem cells could improve their therapeutic effects, minimizing side effects in patients.
ISSN:1872-9614