• Neuropeptides · Feb 2017

    The combined application of human adipose derived stem cells and Chondroitinase ABC in treatment of a spinal cord injury model.

    • Arash Sarveazad, Asrin Babahajian, Mehrdad Bakhtiari, Mansoureh Soleimani, Babak Behnam, Abazar Yari, Abolfazl Akbari, Mahmoud Yousefifard, Atousa Janzadeh, Naser Amini, Shahram Agah, Ali Fallah, and Mohammad Taghi Joghataei.
    • Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran; Cellular and Molecular Research Center, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
    • Neuropeptides. 2017 Feb 1; 61: 39-47.

    BackgroundAlthough stem cell therapy has become a major focus as a new option for management of spinal cord injury (SCI), its effectiveness should be promoted. In this study, we investigated the effects of co-administrating human adipose-derived stem cells (hADSCs) and Chondroitinase ABC (ChABC) in a rat model of spinal cord injury.Material And MethodshADSCs derived from superficial layer of abdominal adipose tissue were used to treat a contusion-induced SCI. Animals were randomly allocated to five equal groups including sham (only laminectomy), SCI (SCI+vehicle injection), hADSCs (1×10⁶ hADSCs/10μl intra-spinal injection), ChABC (10μl of 100U/ml ChABC intra-spinal injection injection), and hADSCs+ChABC. Basso, Beattie and Bresnahan tests were used to evaluate locomotor function. 8weeks after treatment, cavity size, myelination, cell differentiation (neuron and astrocyte), and chondroitin sulfate amount were analyzed.ResultshADSC transplanted animals, ChABC injected animals (P<0.001), and hADSC+ChABC treated rats (P<0.001) displayed significant motor improvement compared to SCI group. Combination therapy of hADSCs and ChABC led to greater locomotor recovery compared to using hADSCs (P<0.001) or ChABC (P<0.01) alone. Spinal cords in the combined and single therapy groups had cavities filled with myelinated areas and less chondroitin sulfate content in comparison with the control group (P<0.001). hADSCs expressed GFAP, B III tubulin and Map2.ConclusionCombination therapy with ChABC and hADSCs exhibits more significant functional recovery than single therapy using either. This result may be applicable in selection of the best therapeutic strategy for SCI.Copyright © 2016 Elsevier Ltd. All rights reserved.

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