Migration of monocytes after intracerebral injection.

Cell Adhesion & Migration
Miriam KaminskiJana Glumm

Abstract

Recently, we monitored green fluorescent protein (GFP)-expressing monocytes after injection at the entorhinal cortex lesion (ECL) site in mice. We followed their migration out of the central nervous system (CNS) along olfactory nerve fibers penetrating the lamina cribrosa, within the nasal mucosa, and their subsequent appearance within the deep cervical lymph nodes (CLN), with numbers peaking at day 7. This is the same route activated T cells use for reaching the CLN, as we have shown before. Interestingly, GFP cells injected into the brain and subsequently found in the CLN exhibited ramified morphologies, which are typical of microglia and dendritic cells. To gain more insight into immunity and regeneration within the CNS we want to monitor injected monocytes using magnetic resonance imaging (MRI) after labeling with very small superparamagnetic iron oxide particles (VSOP). Due to their small size, nanoparticles have huge potential for magnetic labeling of different cell populations and their MRI tracking in vivo. So far we have verified that incubation with VSOP particles does not alter their migration pattern after ECL.

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Citations

Feb 22, 2017·Scientific Reports·Benjamin D ClarksonZsuzsanna Fabry
Jul 27, 2021·Frontiers in Neuroanatomy·Jasleen KaurQuan Jiang
Jul 31, 2021·Current Treatment Options in Oncology·Zahraa F AudiSanaa M Nabha

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