Study summary · research use only
[Cerebrolysin peptides as mood stabilizers]
Plain-language summary
Paraphrased from the published abstract below — not a verdict on whether anything works.
This is a study (species not specified) investigating molecular mechanisms underlying the mood-stabilizing (normothymic) action of the neuroprotective preparation Cerebrolysin, using mass-spectrometric analysis of its peptide composition followed by bioinformatics analysis. The abstract reports that Cerebrolysin contains substantial amounts of Leu- and Met-enkephalins, partial enkephalin analogues, and peptide fragments of beta-lipotropin, which the authors describe as stimulating the endorphinergic system and increasing BDNF levels. The abstract also reports that Cerebrolysin peptides specifically inhibit kinases ABL1, PINK1, CDK5, and arginine N-methyltransferase PRMT5, affecting the dopaminergic system, while not directly affecting the serotonergic, adrenergic, or GABAergic systems. The authors attribute the normothymic effect to stabilization of endorphinergic and dopaminergic neurotransmission.
Abstract
To establish the molecular mechanisms of the mood stabilizing (normothymic) action of the neuroprotector Cerebrolysin. Mass-spectrometric analysis of the peptide composition of cerebrolysin followed by a complex bioinformatics analysis was utilized. Cerebrolysin contains considerable amounts of Leu- and Met-enkephalins, partial analogues of enkephalins, peptide fragments of beta-lipotropin. These peptides stimulate the endorphinergic system thus contributing to normothymic action and an increase in the levels of the brain-derived neurotrophic factor (BDNF). Specific inhibition of kinases ABL1, PINK1, CDK5 and arginine N-methyltransferase PRMT5 by the peptides of cerebrolysin has a multidirectional effect on the dopaminergic system, also helping to stabilize mood. Cerebrolysin peptides do not directly affect neither the serotonergic, adrenergic, nor GABAergic systems. The normothymic effect of Cerebrolysin is due to the stabilization of endorphinergic and dopaminergic neurotransmission. Цель исследования. Установление молекулярных механизмов нормотимического действия нейропротектора Церебролизина. Материал и методы. Комплексный масс-спектрометрический анализ пептидного состава Церебролизина с последующим биоинформационным анализом. Результаты. Установлено содержание в Церебролизине Лей- и Мет-энкефалина, частичных аналогов энкефалинов, пептидных фрагментов бета-липотропина. Эти пептиды стимулируют эндорфинергическую систему ЦНС, способствуя нормотимии и повышению уровней нейротрофического фактора мозга BDNF. Специфическое ингибирование пептидами Церебролизина киназ ABL1, PINK1, CDK5 и аргинин N-метилтрансферазы PRMT5 оказывает разнонаправленное действие на дофаминергическую систему, способствуя стабилизации настроения. Пептиды Церебролизина не оказывают прямого воздействия ни на серотонинергическую, ни на адренергическую, ни на ГАМКергическую системы ЦНС. Вывод. Нормотимическое действие Церебролизина обусловлено стабилизацией эндорфинергической и дофаминергической нейротрансмиссии.
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