Transplantation of olfactory ensheathing cells promotes partial recovery in rats with experimental autoimmune encephalomyelitis.

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.

• Authors: Jia Li, Weian Chen, Yu'an Li, Ying Chen, Zhangna Ding, Dehao Yang, Xu Zhang
• Journal: International journal of clinical and experimental pathology (Int J Clin Exp Pathol) Vol. 8 Issue 9 Pg. 11149-56 ( 2015) ISSN: 1936-2625 [Electronic] United States
• PMID: 26617835 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Biomarkers
• Nerve Tissue Proteins
• Receptors, Growth Factor
• Ngfr protein, rat
• Freund's Adjuvant
• Pertussis Toxin

Topics

• Animals
• Biomarkers (metabolism)
• Brain (immunology, metabolism, pathology, physiopathology)
• Cell Transplantation (methods)
• Cells, Cultured
• Encephalomyelitis, Autoimmune, Experimental (immunology, metabolism, pathology, physiopathology, surgery)
• Female
• Fluorescent Antibody Technique
• Freund's Adjuvant
• Guinea Pigs
• Heterografts
• Nerve Tissue Proteins (metabolism)
• Neuroglia (metabolism, transplantation)
• Neurologic Examination
• Olfactory Nerve (cytology, metabolism, transplantation)
• Pertussis Toxin
• Phenotype
• Rats, Inbred Lew
• Rats, Sprague-Dawley
• Receptors, Growth Factor (metabolism)
• Recovery of Function
• Spinal Cord (immunology, transplantation)
• Time Factors