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  • Title: The mesenchymal stem cell-derived microvesicles enhance sciatic nerve regeneration in rat: a novel approach in peripheral nerve cell therapy.
    Author: Raisi A, Azizi S, Delirezh N, Heshmatian B, Farshid AA, Amini K.
    Journal: J Trauma Acute Care Surg; 2014 Apr; 76(4):991-7. PubMed ID: 24662862.
    Abstract:
    BACKGROUND: The accomplishment for desired functional peripheral nerve regeneration is still challenging despite various materials and methods. The effects of local application of omental adipose mesenchymal stromal cell-derived microvesicles (MVs) on peripheral nerve regeneration were studied using a rat sciatic nerve transection model. METHODS: A 10-mm gap of sciatic nerve was bridged with a chitosan conduit. The rats were divided into five experimental groups randomly as follows: cultured undifferentiated omental adipose-derived stromal cells, rest mesenchymal stem cell-derived MVs (c-MVs), anti-inflammatory mesenchymal stem cell-derived MVs (anti-MVs), proinflammatory mesenchymal stem cell-derived MVs (pro-MVs), and negative control (Chit). RESULTS: The functional assessment of nerve regeneration (walking track analyses), electrophysiologic measurements, muscle mass measurements, as well as histomorphometrical and immunohistochemical indices showed drastic improvement in nerve regeneration in c-MVs and anti-MVs animals compared with pro-MVs animals (p < 0.05). CONCLUSION: The anti-inflammatory stem cell-derived MVs can be used as an alternative for the improvement of rat sciatic nerve regeneration.
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