Abstract:
:The purpose of this study was to investigate the effects of brain-derived neurotrophic factor (BDNF)-transfected bone marrow mesenchymal stem cells (BMSCs) on neural functional recovery and synaptophysin expression in rats with cerebral infarction (CI). A total of 120 healthy Sprague Dawley rats were randomly divided into sham group, control group, and model group. Craniotomy was conducted and neurological function defect scoring was used to verify the model. BDNF containing recombinant plasmid was transfected into rat BMSCs, which was verified by flow cytometry and Western Blot. After injection of the transfected BMSCs, neural functional recovery of the CI rats and synaptophysin expression were measured. After the CI rat model was established, magnetic resonance (MR) imaging, 2, 3, 5- triphenyl tetrazolium chloride (TTC) staining, and the neurological function defect scoring determined the success of the model. CD34 (-), CD45 (-), CD29 (+), and CD90 (+) cells detected showed that the obtained BMSCs have high purity. BDNF protein was highly expressed in the BMSCs successfully transfected with the recombinant plasmid. Balance beam walking score, rotating bar walking score, and screen test score were significantly lower, while synaptophysin expression was higher in the BDNF model group than those in the non-BDNF model group and sham group with time extension. BDNF can increase synaptic plasticity and neurogenesis and have a promotional role in neural functional recovery and synaptophysin expression in rats with CI. BDNF-transfected BMSCs may therefore have better treatment efficacy for CI clinically.
journal_name
Mol Neurobioljournal_title
Molecular neurobiologyauthors
Zhang Y,Qiu B,Wang J,Yao Y,Wang C,Liu Jdoi
10.1007/s12035-016-9946-7subject
Has Abstractpub_date
2017-07-01 00:00:00pages
3813-3824issue
5eissn
0893-7648issn
1559-1182pii
10.1007/s12035-016-9946-7journal_volume
54pub_type
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