期刊
MUSCLE & NERVE
卷 43, 期 4, 页码 543-551出版社
WILEY
DOI: 10.1002/mus.21907
关键词
axonal regrowth; neurotrophic factors; olfactory ensheathing cells; peripheral nerve; regeneration
资金
- Aide a Domicile aux Insuffisants Respiratoires (ADIR)
Introduction: Olfactory ensheathing cells (OECs) hold promise for cell therapy because they may promote regeneration of the central nervous system. However, OECs have been less studied after peripheral nerve injury (PNI). The purpose of this investigation was to determine the effect of OEC transplantation on a severe sciatic nerve (SN) lesion. Methods: OECs were injected in rats after section and 2-cm resection of the SN. Results: Three months after therapy, muscle strength and morphometric studies showed complete restoration of the contractile properties of the gastrocnemius and complete repair of the SN. Immunohistochemistry and RT-PCR studies indicated an increase in the presence of neurotrophic factors. Interestingly, tracking of green fluorescent protein (GFP)-positive OECs showed that no OECs were present in the SN. Discussion: Our results demonstrate that, after severe PNI, OECs have remarkable potential for nerve regeneration by creating a favorable microenvironment. Muscle Nerve 43: 543-551, 2011
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