[Effects of cytoflavin on neuronal apoptotic processes in the murine cerebral cortex on a model of physiologicaland pathological aging]. / Vliianie tsitoflavina na protsessy apoptoza neironov kory golovnogo mozga u myshei na modeli fiziologicheskogo i patologicheskogo stareniia.
Arkh Patol
; 81(4): 59-65, 2019.
Article
em Ru
| MEDLINE
| ID: mdl-31407720
ABSTRACT
Involutional changes in the cerebral cortex substantially affect the activity of the cortex itself and the function of target organs. This necessitates pharmacological correction of age-related diseases, primarily a high level of cell death. OBJECTIVE:
To investigate the role of cytoflavin in mechanisms for the apoptotic regulation of cerebral cortical cells during physiological and pathological aging (in the presence of HER-2/neu overexpression). MATERIAL ANDMETHODS:
HER-2/neu transgenic mice were used; wild-type FVB/N mice served as controls. The levels of apoptosis (TUNEL) and the expression of its associated proteins (p53, CD95, Mcl-1, p-AKT, and p-ERK) (Western blotting) were estimated in the sensorimotor cortex.RESULTS:
Activation of fundamental AKT and ERK survival pathways promotes a low level of cell death in young FVB/N mice; the extrinsic receptor mechanism of apoptosis is observed to be initiated by aging. The high p-AKT levels in the cortical cells provide suppressed cell death in transgenic mice regardless of their age. After cytoflavin administration, the old wild-type mice show a lower level of apoptosis in the cortical neurons apparently due to the increased expression of the anti-apoptotic protein Mcl-1, while the old transgenic mice exhibited suppression of the AKT and ERK survival pathways and, accordingly, activation of the extrinsic receptor and p53-dependent apoptosis pathways.CONCLUSION:
Thus, cytoflavin exerts a pronounced neuroprotective effect during physiological and accelerated aging, while its effect on the level of neuronal apoptosis is ambiguous and depends on the genetic line of animals. So, this is a moderate stimulation of apoptosis when its level is low in HER-2/neu mice with a high level of carcinogenesis, as well as a decrease in the high level of apoptosis in old wild-type animals, which prevents neurodegeneration.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Succinatos
/
Envelhecimento
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Córtex Cerebral
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Niacinamida
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Mononucleotídeo de Flavina
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Inosina Difosfato
Limite:
Animals
Idioma:
Ru
Revista:
Arkh Patol
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Federação Russa