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Updated: Oct 3, 2025

In Vivo Gene Transfer to Schwann Cells in the Rodent Sciatic Nerve by Electroporation
Published on: September 8, 2016
A less painful transfer of power
Martin Kerschensteiner1, Thomas Misgeld2
1Institute of Clinical Neuroimmunology, University Hospital, Ludwig-Maximilians Universität München, Marchioninistrasse 15, 81377 Munich, Germany; Biomedical Center (BMC), Faculty of Medicine, Ludwig-Maximilians Universität München, Grosshaderner Strasse 9, 82152 Martinsried, Germany; Munich Cluster for Systems Neurology (SyNergy), Feodor-Lynen-Strasse 17, 81377 Munich, Germany.
Macrophages transfer mitochondria to neurons, resolving pain. This unexpected cell-to-cell transfer boosts nociceptor function and adds a new dimension to the mitochondrial life cycle.
Area of Science:
- Cell Biology
- Immunology
- Neuroscience
Background:
- Mitochondria are crucial for cellular energy and function.
- The mitochondrial life cycle traditionally focuses on intracellular processes.
- Cellular communication mechanisms are diverse and still being uncovered.
Purpose of the Study:
- To investigate the role of M2-macrophages in pain resolution.
- To explore intercellular mitochondrial transfer in the context of neuronal function.
- To understand the impact of macrophage-derived mitochondria on sensory neurons.
Main Methods:
- Infiltration of sensory ganglia by M2-macrophages was studied.
- Analysis of mitochondrial transfer from macrophages to neurons.
- Assessment of nociceptor function following mitochondrial transfer.
Main Results:
- M2-macrophages were observed to infiltrate sensory ganglia.
- Evidence suggests these macrophages transfer mitochondria to neurons.
- This transfer was associated with the restoration of normal nociceptor function.
Conclusions:
- Intercellular mitochondrial transfer is a novel aspect of the mitochondrial life cycle.
- M2-macrophages play a role in pain resolution through mitochondrial donation.
- Mitochondrial transfer from macrophages can restore neuronal function, offering a new therapeutic avenue.
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