Jia Li1, Weian Chen1, Yu'an Li2, Ying Chen1, Zhangna Ding1, Dehao Yang1, Xu Zhang1. 1. Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University Wenzhou 32500, Zhejiang, China. 2. Department of Pediatric Orthopedics, The Second Affiliated Hospital of Wenzhou Medical University Wenzhou 32500, Zhejiang, China.
Abstract
OBJECTIVE: This study was to investigate the efficacy of olfactory ensheathing cell (OEC) transplantation on experimental autoimmune encephalomyelitis (EAE). METHODS: EAE models were established by guinea pig spinal cord homogenate (GPSCH) immunization in Lewis rats. OECs were purified and cultured from the olfactory nerve layer of SD rats, and then transplanted to the EAE models through the vena caudalis (Group A) or into the lateral cerebral ventricle (Group B). Neurological function scores and body weights were daily recorded following transplantation, and histological analysis was performed to assess the pathological changes in EAE rats. RESULTS: Cultured cells mainly exhibited bipolar or tripolar morphology, and the majority of these cells were positive for NGFR p75 staining. Neurological function scoring and the body weight measurement showed that, OEC transplantation could significantly improve the performance of EAE rats, and similar results were observed for the transplantation through the vena caudalis and into the lateral cerebral ventricle. Moreover, the transplanted OECs accumulated to the lesions in the brains of EAE rats, in spite of the different transplantation approaches. However, no significant differences in histopathology (HE and LFB staining) were observed between the OEC-transplanted groups and the control group. CONCLUSION: OEC transplantation could exert beneficial effects in the treatment of EAE, no matter which the cells were transplanted through the vena caudalis or into the lateral cerebral ventricle. Our findings might provide evidence for the clinical treatment of multiple sclerosis with cell transplantation.
OBJECTIVE: This study was to investigate the efficacy of olfactory ensheathing cell (OEC) transplantation on experimental autoimmune encephalomyelitis (EAE). METHODS: EAE models were established by guinea pig spinal cord homogenate (GPSCH) immunization in Lewis rats. OECs were purified and cultured from the olfactory nerve layer of SD rats, and then transplanted to the EAE models through the vena caudalis (Group A) or into the lateral cerebral ventricle (Group B). Neurological function scores and body weights were daily recorded following transplantation, and histological analysis was performed to assess the pathological changes in EAE rats. RESULTS: Cultured cells mainly exhibited bipolar or tripolar morphology, and the majority of these cells were positive for NGFR p75 staining. Neurological function scoring and the body weight measurement showed that, OEC transplantation could significantly improve the performance of EAE rats, and similar results were observed for the transplantation through the vena caudalis and into the lateral cerebral ventricle. Moreover, the transplanted OECs accumulated to the lesions in the brains of EAE rats, in spite of the different transplantation approaches. However, no significant differences in histopathology (HE and LFB staining) were observed between the OEC-transplanted groups and the control group. CONCLUSION: OEC transplantation could exert beneficial effects in the treatment of EAE, no matter which the cells were transplanted through the vena caudalis or into the lateral cerebral ventricle. Our findings might provide evidence for the clinical treatment of multiple sclerosis with cell transplantation.
Authors: Ingrid Lovise Augestad; Axel Karl Gottfrid Nyman; Alex Ignatius Costa; Susan Carol Barnett; Axel Sandvig; Asta Kristine Håberg; Ioanna Sandvig Journal: Neurochem Res Date: 2017-01-24 Impact factor: 3.996