Intranasal Administration of Undifferentiated Oligodendrocyte Lineage Cells as a Potential Approach to Deliver Oligodendrocyte Precursor Cells into Brain

Oligodendrocyte precursor cell (OPC) migration is a mechanism involved in remyelination; these cells migrate from niches in the adult CNS. However, age and disease reduce the pool of OPCs; as a result, the remyelination capacity of the CNS decreases over time. Several experimental studies have intro...

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Main Authors: Ulises Gómez-Pinedo, Jordi A. Matías-Guiu, María Soledad Benito-Martín, Lidia Moreno-Jiménez, Inmaculada Sanclemente-Alamán, Belen Selma-Calvo, Sara Pérez-Suarez, Francisco Sancho-Bielsa, Alejandro Canales-Aguirre, Juan Carlos Mateos-Díaz, Mercedes A. Hernández-Sapiéns, Edwin E. Reza-Zaldívar, Doddy Denise Ojeda-Hernández, Lucía Vidorreta-Ballesteros, Paloma Montero-Escribano, Jorge Matías-Guiu
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:International Journal of Molecular Sciences
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Online Access:https://www.mdpi.com/1422-0067/22/19/10738
Description
Summary:Oligodendrocyte precursor cell (OPC) migration is a mechanism involved in remyelination; these cells migrate from niches in the adult CNS. However, age and disease reduce the pool of OPCs; as a result, the remyelination capacity of the CNS decreases over time. Several experimental studies have introduced OPCs to the brain via direct injection or intrathecal administration. In this study, we used the nose-to brain pathway to deliver oligodendrocyte lineage cells (human oligodendroglioma (HOG) cells), which behave similarly to OPCs in vitro. To this end, we administered GFP-labelled HOG cells intranasally to experimental animals, which were subsequently euthanised at 30 or 60 days. Our results show that the intranasal route is a viable route to the CNS and that HOG cells administered intranasally migrate preferentially to niches of OPCs (clusters created during embryonic development and adult life). Our study provides evidence, albeit limited, that HOG cells either form clusters or adhere to clusters of OPCs in the brains of experimental animals.
ISSN:1661-6596
1422-0067