Dipeptide Mimetic of the BDNF GSB-106 with Antidepressant-Like Activity Stimulates Synaptogenesis

Abstract

Dipeptide mimetic of the brain-derived neurotrophic factor bis(N-monosuccinyl-L-seryl-L-lysine) hexamethylenediamide (working name GSB-106), which reproduces the homodimeric structure of BDNF and the beta-turn of its fourth loop, activates TrkB, AKT, and ERK, exhibits neuroprotective and antidepressant activity, and is able to stimulate neurogenesis in the hippocamp of stressed mice. Using Western blot hybridization and synaptophysin (synaptogenesis marker), we showed the ability of chronically administered GSB-106 to stimulate synaptogenesis, increasing the synaptic density in the hippocamp by 50%. Under the same conditions, GSB-106 exhibited antidepressant activity (decreased (by 18%) immobility of animals in Porsolt test), which may be associated with the stimulation of neurogenesis and synaptogenesis in the hippocamp.

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Correspondence to T. A. Gudasheva.

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Original Russian Text © T.A. Gudasheva, P.Yu. Povarnina, T.A. Antipova, S.B. Seredenin, 2018, published in Doklady Akademii Nauk, 2018, Vol. 481, No. 5.

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Gudasheva, T.A., Povarnina, P.Y., Antipova, T.A. et al. Dipeptide Mimetic of the BDNF GSB-106 with Antidepressant-Like Activity Stimulates Synaptogenesis. Dokl Biochem Biophys 481, 225–227 (2018). https://doi.org/10.1134/S1607672918040130

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