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Participation of cAMP-Mediated Signaling Transduction in the Regulation of the Secretory Function of Neuroglia during Ethanol-Induced Neurodegeneration

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Bulletin of Experimental Biology and Medicine Aims and scope

We studied the involvement of cAMP and PKA in the regulation of the secretion of neurotrophic growth factors by macro-and microglial cells in the model of ethanol-induced neurodegeneration in vitro and in vivo. The stimulating role of cAMP in the secretion of neurotrophins by intact astrocytes and oligodendrocytes was shown, while PKA does not participate in this process. On the contrary, the inhibitory role of cAMP (implemented via PKA activation) in the production of neurogenesis stimulators by microglial cells under conditions of optimal vital activity was found. Under the influence of ethanol, the role of cAMP and PKA in the production of growth factors by macroglial cells was considerably changed. The involvement of PKA in the cAMP-dependent signaling pathways and inversion of the role of this signaling pathway in the implementation of the neurotrophic secretory function of astrocytes and oligodendrocytes, respectively, directly exposed to ethanol in vitro were noted. Long-term exposure of the nervous tissue to ethanol in vivo led to the loss of the stimulating role of cAMP/PKA signaling on neurotrophin secretion by macroglial cells without affecting its inhibitory role in the regulation of this function in microglial cells.

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Authors and Affiliations

  1. E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia

    G. N. Zyuz’kov, V. V. Zhdanov, L. A. Miroshnichenko, T. Yu. Polyakova, E. V. Simanina, M. G. Danilets, V. I. Agafonov & L. A. Stavrova

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  1. G. N. Zyuz’kov
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  2. V. V. Zhdanov
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  3. L. A. Miroshnichenko
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  4. T. Yu. Polyakova
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  5. E. V. Simanina
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  6. M. G. Danilets
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  7. V. I. Agafonov
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  8. L. A. Stavrova
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Correspondence to G. N. Zyuz’kov.

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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 175, No. 1, pp. 16-20, January, 2023

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Zyuz’kov, G.N., Zhdanov, V.V., Miroshnichenko, L.A. et al. Participation of cAMP-Mediated Signaling Transduction in the Regulation of the Secretory Function of Neuroglia during Ethanol-Induced Neurodegeneration. Bull Exp Biol Med 175, 12–16 (2023). https://doi.org/10.1007/s10517-023-05800-7

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