TY - JOUR

T1 - Optogenetic stimulation increases level of antiapoptotic protein Bcl-xL in Neurons

AU - Lanshakov, D. A.

AU - Drozd, U. S.

AU - Dygalo, N. N.

N1 - This work was financially supported by the Russian Science Foundation (project No. 141500115).

PY - 2017/3/1

Y1 - 2017/3/1

N2 - The antiapoptotic protein Bcl-xL is associated with several neuroplastic processes such as formation of synapses, regulation of spontaneous and evoked synaptic responses, and release of neurotransmitters. Dependence of expression on activity of neurons is characteristic for many proteins participating in regulation of neuroplasticity. Whether such property is exhibited by the Bcl-xL protein was analyzed using in vivo optogenetic stimulation of hippocampal glutamatergic neurons expressing channelrhodopsin ChR2H134 under CAMKIIa promoter in the adeno-associated viral vector, followed by immunohistochemical determination of the level of Bcl-xL protein in these neurons and surrounding cells. Increase in the level of early response c-Fos protein following illumination with blue light was indicative of activation of these hippocampal neurons. The optogenetic activation of hippocampus resulted in a significant increase in the level of antiapoptotic protein Bcl-xL in the photosensitive neurons as well as in the surrounding cells. The dependence of the level of expression of Bcl-xL protein on the activity of neurons indicates that this protein possesses one more important property that is essential for participation in neuroplastic processes in the brain.

AB - The antiapoptotic protein Bcl-xL is associated with several neuroplastic processes such as formation of synapses, regulation of spontaneous and evoked synaptic responses, and release of neurotransmitters. Dependence of expression on activity of neurons is characteristic for many proteins participating in regulation of neuroplasticity. Whether such property is exhibited by the Bcl-xL protein was analyzed using in vivo optogenetic stimulation of hippocampal glutamatergic neurons expressing channelrhodopsin ChR2H134 under CAMKIIa promoter in the adeno-associated viral vector, followed by immunohistochemical determination of the level of Bcl-xL protein in these neurons and surrounding cells. Increase in the level of early response c-Fos protein following illumination with blue light was indicative of activation of these hippocampal neurons. The optogenetic activation of hippocampus resulted in a significant increase in the level of antiapoptotic protein Bcl-xL in the photosensitive neurons as well as in the surrounding cells. The dependence of the level of expression of Bcl-xL protein on the activity of neurons indicates that this protein possesses one more important property that is essential for participation in neuroplastic processes in the brain.

KW - AAV vector

KW - activity-dependent protein expression

KW - hippocampal glutamatergic neuron

KW - optogenetics

KW - protein Bcl-xL

KW - protein c-Fos

KW - bcl-X Protein/biosynthesis

KW - Channelrhodopsins

KW - Rats

KW - Optogenetics

KW - Animals

KW - Neurons/metabolism

KW - Hippocampus/metabolism

KW - Neuronal Plasticity/physiology

UR - http://www.scopus.com/inward/record.url?scp=85014936147&partnerID=8YFLogxK

UR - https://www.elibrary.ru/item.asp?id=29499050

U2 - 10.1134/S0006297917030129

DO - 10.1134/S0006297917030129

M3 - Article

C2 - 28320275

AN - SCOPUS:85014936147

VL - 82

SP - 340

EP - 344

JO - Biochemistry (Moscow)

JF - Biochemistry (Moscow)

SN - 0006-2979

IS - 3

M1 - 12

ER -