Abstract：
:Up-regulation of proBDNF in ischemic brain and the detrimental role of proBDNF on cellular survival has already been established. We propose that the up-regulated proBDNF may trigger the harmful events and evoke a secondary ischemic damage after ischemia. This study aimed to establish the neuroprotective effects of anti-proBDNF antibody in a rat photothrombotic ischemic model. Photothrombotic ischemic model was performed on Sprague Dawley rats and anti-proBDNF antibodies were administered intraperitoneally to the ischemic rats at a dose of 5 mg/kg after 6 hours (6 h) and on 3 days (3d) after ischemia. Behavioural tests were performed for sensorimotor functional analyses. Animals were euthanized at 7d for histochemical and biochemical studies. We observed higher proBDNF expression around the ischemic infarct. Higher level of apoptosis and inflammation was evident at 7d after ischemia on brain sections. Interestingly, the anti-proBDNF treatment instigated significant reduction of the infarction size as detected by Haematoxylin and Eosin (H&E) staining. Similar reduction of apoptotic signaling proteins in western blot and immunostaining after anti-proBDNF treatment was found. Up-regulation of synaptic protein expression was also observed after this treatment. Significant sensorimotor functional improvements were also noticed at 7d after anti-proBDNF treatment. We conclude that anti-proBDNF treatment is anti-apoptotic and anti-inflammatory, and plays advantageous role in promoting cellular growth and improving sensorimotor function after ischemic insult. Taken together, our study suggests that this anti-proBDNF treatment can be considered as a therapeutic approach for ischemic recovery.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Rahman M,Luo H,Bobrovskaya L,Zhou XFdoi
10.1016/j.neuroscience.2020.08.008subject
Has Abstractpub_date
2020-10-15 00:00:00pages
261-270eissn
0306-4522issn
1873-7544pii
S0306-4522(20)30513-3journal_volume
446pub_type
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